CN108196080B

CN108196080B - Sample transport method and apparatus, test instrument, and computer-readable storage medium

Info

Publication number: CN108196080B
Application number: CN201711341964.2A
Authority: CN
Inventors: 吴中义; 赵丙强; 沈向锋; 汪华龙
Original assignee: Maccura Medical Electronics Co Ltd
Current assignee: Maccura Medical Electronics Co Ltd
Priority date: 2017-12-14
Filing date: 2017-12-14
Publication date: 2020-10-27
Anticipated expiration: 2037-12-14
Also published as: CN108196080A

Abstract

The invention discloses a sample conveying method and device, a testing instrument and a computer readable storage medium. The sample transport method includes: pushing the first sample rack to a sample rack conveying position of the conveyor belt; when the sample position on the first sample rack moves to the grabbing position, judging whether the sample position moving to the grabbing position is a target sample position; if the sample position moved to the grabbing position is the target sample position, judging whether all other sample positions except the preset number of sample positions on the first sample frame before the target sample position are tested; if all the other sample positions except the preset number of sample positions on the first sample rack before the target sample position are tested, judging whether a next sample rack exists on the loading platform; and if the next sample rack exists on the loading platform, pushing the next sample rack to the next sample rack conveying position of the conveyor belt from the loading platform. By adopting the sample conveying method in the embodiment of the invention, the conveying efficiency of the sample can be improved.

Description

Sample transport method and apparatus, test instrument, and computer-readable storage medium

Technical Field

The invention relates to the technical field of medical instruments, in particular to a sample conveying method and device, a testing instrument and a computer readable storage medium.

Background

To achieve automatic sample introduction of multiple samples, the sample transport device in the testing instrument typically uses a conveyor belt to transport the samples. The sample transport method of the sample transport apparatus includes: the sample rack loaded with the samples is loaded on the conveyor belt, the conveyor belt is controlled to drive the samples on the sample rack to sequentially reach a sample injection position (namely a sample testing position), and the sample rack is unloaded from the conveyor belt until the samples on the sample rack are tested.

However, the inventors of the present application have found that the above-described sample transport apparatus can transport only one sample rack at a time, and only after the sample rack is unloaded from the conveyor belt, transport of the next sample rack is started, resulting in low transport efficiency of samples.

Disclosure of Invention

The embodiment of the invention provides a sample conveying method and device, a testing instrument and a computer readable storage medium, which can improve the conveying efficiency of samples.

In a first aspect, an embodiment of the present invention provides a sample transportation method, which is used for a test instrument, where the test instrument includes a conveyor belt, and a loading platform and a gripping location that are sequentially arranged along a conveying direction of the conveyor belt, and the conveyor belt is provided with a plurality of sample rack transportation locations. The sample transport method includes:

pushing the first sample rack from the loading platform to a sample rack conveying position of the conveyor belt;

when the sample position on the first sample rack moves to the grabbing position, judging whether the sample position moving to the grabbing position is a target sample position, wherein the target sample position is used for judging whether a next sample rack needs to be continuously pushed onto the conveying belt;

if the sample position moved to the grabbing position is the target sample position, judging whether other sample positions except the preset number of sample positions on the first sample rack before the target sample position are all tested, wherein the preset number is the number of sample positions corresponding to the delay time of output information indicating whether the sample needs to be rechecked;

if all the other sample positions except the preset number of sample positions on the first sample rack before the target sample position are tested, judging whether a next sample rack exists on the loading platform;

and if the next sample rack exists on the loading platform, pushing the next sample rack to the next sample rack conveying position of the conveyor belt from the loading platform.

In some embodiments of the first aspect, determining whether the sample bit moved to the grab bit is the target sample bit comprises: obtaining the target position number of the target sample position on the sample frame according to the number of sample positions which can be accommodated on the sample frame, the number of sample positions between the loading platform and the grabbing position and the preset number; and judging whether the sample position moved to the grabbing position is the target sample position or not according to the position number and the target position number of the sample position moved to the grabbing position.

In some embodiments of the first aspect, obtaining the target position number of the target sample position on the sample rack according to the number of sample positions that can be accommodated on the sample rack, the number of sample positions between the loading platform and the grasping position, and a predetermined number includes:

calculating the target position number m of the target sample on the sample frame by using the following formula:

m＝n-j+a-1

wherein n is the number of sample bits that can be accommodated on the sample rack, j is the number of sample bits between the end of the loading platform facing the gripping location and the gripping location, a is the predetermined number, m and n are positive integers, j and a are integers greater than or equal to 0, and m satisfies: m is more than 0 and less than or equal to n.

In some embodiments of the first aspect, determining whether all but a predetermined number of sample positions on the first sample rack prior to the target sample position have completed the test comprises:

if all the other sample positions except the preset number of sample positions in the first sample rack before the target sample position meet the condition that the retest is not needed or no sample is placed, all the other sample positions except the preset number of sample positions in the first sample rack before the target sample position are tested;

if any of the other than the predetermined number of sample positions on the first sample rack before the target sample position is not satisfied and no review is required or no sample is placed, all of the other than the predetermined number of sample positions on the first sample rack before the target sample position are not tested.

In some embodiments of the first aspect, after determining whether the sample bit moved to the grab bit is the target sample bit, the sample transport method further comprises: pausing the movement of the conveyor belt, grabbing the first sample on the target sample position for testing until the first sample is grabbed from the target sample position, and resuming the movement of the conveyor belt; and when the first sample test is finished and the target sample moves to the grabbing position, the movement of the conveyor belt is suspended until the first sample is placed back to the target sample position, and the movement of the conveyor belt is resumed.

In some embodiments of the first aspect, pushing the next sample rack from the loading platform onto the next sample rack transport location on the conveyor belt comprises: during a period after the completion of the gripping task of the first sample and before the start of the replacement task, or during a period after the completion of the replacement task and before the resumption of the movement of the conveyor belt, the next sample rack is pushed from the loading platform to the next sample rack transport position of the conveyor belt.

In some embodiments of the first aspect, after the first sample test is ended, the sample transport method further comprises: receiving a test result of the first sample; judging whether the test result of the first sample is abnormal or not; and if the test result of the first sample is abnormal, after the test of the current sample is finished, moving the first sample to the grabbing position again so as to recheck the first sample.

In some embodiments of the first aspect, pushing the next sample rack from the loading platform onto the next sample rack transport location on the conveyor belt comprises: judging whether the next sample rack conveying position is located at the outlet position of the loading platform; and if the next sample rack conveying position is not located at the outlet position of the loading platform, moving the next sample rack conveying position to the outlet position of the loading platform, and pushing the next sample rack to the next sample rack conveying position of the conveyor belt from the loading platform.

In some embodiments of the first aspect, the test instrument further comprises an unloading platform disposed in the transport direction after the grasping location; after pushing the first sample rack from the loading platform to a sample rack transport location of the conveyor belt, the sample transport method further comprises: judging whether all samples on the first sample rack are tested or not; if all the samples on the first sample rack have been tested, the first sample rack is moved to the entrance position of the unloading platform and the first sample rack is transferred from the conveyor belt to the unloading platform.

In some embodiments of the first aspect, after all samples on the first sample rack have completed testing, the sample transport method further comprises: judging whether a next sample rack exists on the conveying belt or not; if the next sample rack exists on the conveyor belt, the test of the samples on the sample positions on the next sample rack is continued, and in the test process of the samples on the next sample rack, when the first sample rack moves to the entrance position of the unloading platform, the first sample rack is transferred to the unloading platform from the conveyor belt.

In some embodiments of the first aspect, after moving the first sample rack from the conveyor belt to the unloading platform, the sample transport method further comprises: the number of the next sample rack is updated to the first sample rack.

In some embodiments of the first aspect, the test instrument further comprises a pre-processing station disposed along the transport direction of the conveyor belt between the loading platform and the unloading platform; the sample transport method further includes: when the first sample rack moves to the preprocessing position, acquiring information of the sample rack passing through the preprocessing position to guide the grabbing operation of the grabbing position; and/or, when the sample position on the first sample rack moves to the preprocessing position, judging whether a sample exists on the sample position; and if the sample exists on the sample position, acquiring basic information required by the test of the sample.

In a second aspect, embodiments of the present invention provide a sample transport device, including: the control module is used for controlling the first sample rack to be pushed to a sample rack conveying position of the conveyor belt from the loading platform; the first judging module is used for judging whether the sample position moved to the grabbing position is a target sample position when the sample position on the first sample rack moves to the grabbing position, and the target sample position is used for judging whether a next sample rack needs to be continuously pushed onto the conveyor belt; the second judging module is used for judging whether other sample positions, except for a preset number of sample positions, positioned in front of the target sample position on the first sample rack are completely tested or not if the sample position moved to the grabbing position is the target sample position, and the preset number is the number of sample positions corresponding to the delay time of output information indicating whether the sample needs to be rechecked or not; the third judging module is used for judging whether a next sample rack exists on the loading platform or not if all other sample positions except the preset number of sample positions on the first sample rack before the target sample position are tested; and the control module is also used for controlling the next sample rack to be pushed to the next sample rack conveying position of the conveyor belt from the loading platform if the next sample rack exists on the loading platform.

In some embodiments of the second aspect, the first determining module comprises: the calculating unit is used for obtaining the target position number of the target sample position on the sample rack according to the number of sample positions which can be accommodated on the sample rack, the number of sample positions between the loading platform and the grabbing position and the preset number; and the judging unit is used for judging whether the sample position moved to the grabbing position is the target sample position or not according to the position number and the target position number of the sample position moved to the grabbing position.

In some embodiments of the second aspect, the second determining module is specifically configured to determine that all of the sample positions other than the predetermined number of sample positions located before the target sample position on the first sample rack are tested if all of the sample positions other than the predetermined number of sample positions located before the target sample position on the first sample rack satisfy no need for retesting or no sample is placed;

and if any one of the other sample positions except the predetermined number of sample positions in the first sample rack before the target sample position is not satisfied and the recheck is not required or no sample is placed, judging that all the other sample positions except the predetermined number of sample positions in the first sample rack before the target sample position are not tested.

In some embodiments of the second aspect, the control module is further configured to control the movement of the conveyor belt to be suspended, and control the test gripping test on the first sample at the target sample position to be performed until the gripping of the first sample from the target sample position is completed, and control the conveyor belt to resume the movement; and after the first sample test is finished and the target sample position moves to the grabbing position, controlling the movement of the conveyor belt to be suspended until the first sample is put back to the target sample position, and controlling the conveyor belt to resume moving.

In some embodiments of the second aspect, the control module is further configured to control the next sample rack to be pushed from the loading platform to the next sample rack transport location on the conveyor belt during a time period after the completion of the gripping task of the first sample to before the start of the replacement task, or during a time period after the completion of the replacement task to before the conveyor belt resumes moving.

In some embodiments of the second aspect, the sample transportation device further comprises a receiving module and a fourth determining module, wherein the receiving module is configured to receive a test result of the first sample; the fourth judging module is used for judging whether the test result of the first sample is abnormal or not; the control module is further used for controlling the first sample to move to the grabbing position again after the test of the current sample is finished if the test result of the first sample is abnormal, so that the first sample is rechecked.

In some embodiments of the second aspect, the sample transport apparatus further comprises a fifth determining module, wherein the fifth determining module is configured to determine whether the next sample rack transport position is located at the exit position of the loading platform; and the control device is also used for controlling the next sample frame conveying position to move to the outlet position of the loading platform and controlling the next sample frame to be pushed to the next sample frame conveying position of the conveyor belt from the loading platform if the next sample frame conveying position is not positioned at the outlet position of the loading platform.

In some embodiments of the second aspect, the test instrument further comprises an unloading platform disposed in the transport direction after the grasping location; the sample conveying device also comprises a sixth judging module, wherein the sixth judging module is used for judging whether all samples on the first sample rack are tested or not; and the control module is also used for controlling the first sample rack to move to the entrance position of the unloading platform and controlling the first sample rack to be transferred onto the unloading platform from the conveyor belt if all samples on the first sample rack are tested.

In some embodiments of the second aspect, the sample transport device further comprises a seventh determining module, wherein the seventh determining module is configured to determine whether a next sample rack exists on the conveyor belt; and the controller is also used for controlling the first sample rack to be transferred to the unloading platform from the conveyor belt when the first sample rack moves to the inlet position of the unloading platform in the test process of the samples on the next sample rack.

In some embodiments of the second aspect, the sample transport device further comprises an update module for updating the number of the next sample rack to the first sample rack.

In some embodiments of the second aspect, the test instrument further comprises a pre-processing station disposed along the transport direction of the conveyor belt between the loading platform and the unloading platform; the control module is also used for sending a control instruction for acquiring the information of the first sample rack when the first sample rack moves to the preprocessing position so as to guide the grabbing operation of the grabbing position; and/or when the sample position on the first sample rack moves to the preprocessing position, judging whether a sample exists on the sample position, and if so, sending a control instruction for acquiring basic information required by the test of the sample.

In some embodiments of the second aspect, the conveyor belt is provided with a plurality of protrusions at equal distances, a portion between two adjacent protrusions forms a sample rack transport position, and the width of the sample rack transport position is smaller than or equal to the width of the outlet of the loading platform.

In a third aspect, embodiments of the present invention provide a test instrument comprising a sample transport device as described above.

In a fourth aspect, an embodiment of the present invention provides a computer-readable storage medium on which a program is stored, the program implementing the sample transport method as described above when executed by a processor.

As described above, the embodiment of the present invention employs a plurality of determination steps, which sequentially determine whether or not the sample position moved to the grasping position is the target sample position, determine whether or not all of the sample positions other than the predetermined number of sample positions located before the target sample position on the first sample rack have completed the test, and determine whether or not the next sample rack exists on the loading platform. Through the plurality of judging steps, the conveyor belt can load the first sample rack and simultaneously carry out continuous sample introduction on the next sample rack meeting the plurality of judging steps. Therefore, compared with the prior art in which only one sample rack can be transported at a time and the next sample rack can be transported only after the sample rack is unloaded from the conveyor belt, the sample transporting method in the embodiment of the invention can improve the transporting efficiency of the sample.

Drawings

The present invention will be better understood from the following description of specific embodiments thereof taken in conjunction with the accompanying drawings, in which like or similar reference characters designate like or similar features.

FIG. 1 is a schematic diagram of a test instrument in an embodiment of the present invention;

FIG. 2 is a schematic structural view of a sample rack in a loading position according to an embodiment of the present invention;

FIG. 3 is a schematic structural diagram of a sample rack in a pre-processing position according to an embodiment of the present invention;

FIG. 4 is a schematic structural diagram of a sample bit No. 1 in a pre-processing bit according to an embodiment of the present invention;

FIG. 5 is a schematic structural diagram of a sample bit No. 1 in the capture position according to an embodiment of the present invention;

FIG. 6 is a schematic structural view of a sample rack in an unloading position according to an embodiment of the present invention;

FIG. 7 is a top view of a sample introduction portion of a test instrument provided in an embodiment of the present invention;

FIG. 8 is a perspective view of a sample introduction portion of a test instrument provided in an embodiment of the present invention;

FIG. 9 is a schematic flow chart illustrating a sample transportation method according to an embodiment of the present invention;

FIG. 10 is a schematic flow chart of a sample transportation method according to another embodiment of the present invention;

FIG. 11 is a schematic flow chart illustrating a sample transportation method according to another embodiment of the present invention;

fig. 12 is a schematic structural diagram of a sample transport device according to an embodiment of the present invention.

Description of reference numerals:

101-a conveyor belt; 102-a loading platform; 103-grasping position; 104-a sample rack;

105-an unloading platform; 106-a pre-process bit; 107-label; 801-first sample holder;

802-next sample rack; 1201-a control module; 1202-a first judgment module;

1203-a second judging module; 1204-third judging module.

Detailed Description

Features of various aspects of embodiments of the invention and exemplary embodiments will be described in detail below. In the following detailed description, numerous specific details are set forth in order to provide a thorough understanding of embodiments of the invention.

The embodiment of the invention provides a sample conveying method and device, a testing instrument and a computer readable storage medium, which are used in testing equipment in the medical field, such as a measuring instrument for measuring blood composition, also called a blood analyzer. By adopting the sample conveying method and the sample conveying device in the embodiment of the invention, the sample conveying efficiency can be improved, and the sample testing speed can be improved.

FIG. 1 is a schematic structural diagram of a test apparatus according to an embodiment of the present invention. The test apparatus in fig. 1 includes a conveyor belt 101, and a loading platform 102 and a gripping station 103 which are sequentially arranged in a conveying direction of the conveyor belt 101. The number of the conveyor belts 101 shown in fig. 1 is one, and the forward conveying direction of the conveyor belt 101 is shown by an arrow.

Here, the conveyor belt 101 may transport the sample rack 104 in the forward transport direction, and may transport the sample rack 104 in the reverse transport direction. Because the test result of the sample is delayed, if the test result of the sample is abnormal and the sample needs to be retested, the conveyor belt 101 can be moved reversely, and the sample needing to be retested is moved to the grabbing position 103 again.

According to an embodiment of the present invention, a plurality of sample rack transport positions, each of which can transport one sample rack 104, are provided on the conveyor belt 101.

In one example, a plurality of protrusions may be provided on the conveyor belt 101, and a portion between two adjacent protrusions may form one sample rack transport position.

In another example, the plurality of protrusions may be equidistantly disposed. Taking the example of 6 protrusions equidistantly arranged on the conveyor belt 101, the 6 protrusions are connected end to end, so that the conveyor belt 101 can be divided into 6 sample rack transport positions for accommodating the sample racks 104. Wherein the width of the sample rack transport location may be less than or equal to the width of the exit of the loading platform 102. In the embodiment of the present invention, the width of the sample rack transport position is preferably equal to the width of the outlet of the loading platform 102, so as to simplify the control logic in sample injection.

The loading platform 102 is used to store a plurality of sample racks 104 to be assayed. Illustratively, a pusher assembly may be provided on the loading platform 102 to push the sample rack 104 from the loading platform 102 onto the conveyor belt 101.

In one example, a sensor may be disposed on the loading platform 102 for detecting the presence of the sample rack 104 on the loading platform 102 to indicate the sample introduction operation of the sample rack 104.

In another example, a stopper may be further provided on the loading platform 102 to prevent the sample rack 104 from sliding abnormally onto the conveyor belt 101.

According to the embodiment of the present invention, after the empty sample rack transporting position moves to the loading platform 102, in order to perform the loading operation of the sample rack 104, when the loading platform 102 with the above structure is in operation, the stopper may first move downward, so that the sample rack 104 to be tested can move along the direction toward the conveyor belt 101 without being blocked, and then the pushing hand assembly pushes the sample rack 104 to be tested to the sample rack transporting position, during the pushing process, once it is detected that the sample rack 104 is pushed to the sample rack transporting position, the pushing hand assembly stops moving forward, then moves back to the initial position in the opposite direction, and at the same time, the stopper moves upward to block the subsequent sample rack 104 from moving toward the conveyor belt 101.

The gripping station 103 is shown in fig. 1 above the conveyor belt 101. In one example, a sample grip may be provided at the position of the gripping location 103, and when the sample location on the sample rack 104 is moved to the gripping location 103, the sample grip grips the sample from the sample rack and moves the sample elsewhere, such as a sample testing assembly (not shown); alternatively, a sample is taken from elsewhere, such as by placing the test-completed sample back on the sample holder.

Also shown in fig. 1 is an unloading station 105 for recovering samples on the conveyor belt 101 that have been tested.

In one example, a pusher assembly may be provided at a location corresponding to the unloading platform 105 to push the sample rack 104 that has been tested to the unloading platform 105.

In another example, a sensor may also be provided on the unloading platform 105 for detecting whether the sample rack 104 on the unloading platform 105 is full. If it is detected that the sample rack 104 on the unloading platform 105 is full, the sample injection is suspended.

Also shown in fig. 1 is a pre-processing station 106 located between the loading platform 102 and the unloading platform 105 for performing a pre-processing operation on the sample rack 104 or a sample on the sample rack 104 to obtain basic information of the sample rack 104 or the sample.

To obtain the basic information of the sample rack 104 or the sample, in one example, an information obtaining device may be provided at the position of the preprocessing bit 106 to perform the preprocessing operation. The information acquisition device can be a radio frequency card reader or a code scanner. If the information acquiring device is a barcode scanner, correspondingly, a label 107 may be disposed on the sample rack 104, the label 107 includes a unique barcode or two-dimensional code, and the barcode or two-dimensional code on the label 107 is scanned to acquire the basic information of the sample rack 104.

With the information acquisition apparatus described above, when the sample rack 104 moves to the preprocessing station 106, a preprocessing operation may be performed on the sample rack 104 to instruct the grasping station 103 to perform a subsequent grasping operation. Or, a preprocessing operation may be performed on the sample position on the sample rack 104, and first, whether a sample exists on the sample position is determined, and if a sample exists on the sample position, basic information required for the sample test is obtained.

The sample rack 104 shown in fig. 1 has 10 sample positions, and each sample position stores one sample to be tested. In one example, the sample to be tested may be loaded into a test tube, with a plurality of circular openings provided in the sample holder for placement of the test tube. It is understood that the number of sample sites on the sample rack 104 should not be limited to 10, and one skilled in the art can determine the number of sample sites according to actual testing needs.

It should be noted that the loading platform 102, the grabbing station 103, the unloading platform 105 and the preprocessing station 106 are fixed relative to the testing instrument, and the sample station is fixed relative to the sample rack 104, i.e. when the sample rack 104 moves along with the conveyor belt 101, the sample station can move synchronously with the conveyor belt 101.

The structure of the sample inlet part of the testing apparatus in the embodiment of the present invention will be understood with reference to fig. 2 to 6. Fig. 2 is a schematic structural diagram of the sample rack 104 in the position of the loading platform 102 according to the embodiment of the present invention. I.e. the sample rack 104 has just been pushed from the loading platform 102 onto one sample rack transport position of the conveyor belt 101. Fig. 3 is a schematic structural diagram of the sample rack 104 in the pre-processing position 106 according to an embodiment of the present invention. Fig. 4 is a schematic structural diagram of the sample bit No. 1 in the preprocessing bit 106 according to an embodiment of the present invention. Fig. 5 is a schematic structural diagram of a sample bit No. 1 in the capture bit 103 according to an embodiment of the present invention. Fig. 6 is a schematic structural diagram of the sample rack 104 at the position of the unloading platform 105 according to the embodiment of the present invention.

Next, please refer to fig. 7 and 8 to further understand the structure of the sample injection part of the testing apparatus in the embodiment of the present invention. FIG. 7 is a top view of a sample introduction portion of a test instrument provided in an embodiment of the invention. Fig. 8 is a perspective view of a sample injection part of a test instrument provided in an embodiment of the present invention. The sample rack 104 shown in figures 7 and 8 can hold 10 samples,

the loading platform 102, the preprocessing station 106, the gripping station 103, and the unloading platform 105 shown in fig. 7 are arranged in this order in the conveying direction of the conveyor belt 101. The conveyor belt 101 shown in fig. 7 can accommodate 2 sample racks 104. The preprocessing station 106 and the grabbing station 103 are respectively located above the conveyor belt 101. The loading platform 102 and the unloading platform 105 are respectively located at two ends of the conveyor belt 101, and the outlet width of the loading platform 102 and the inlet width of the unloading platform 105 are consistent with the width of the sample rack 104, so as to simplify the control logic of the conveyor belt.

It is to be understood that, although fig. 7 shows that the number of the sample racks 104 that can be accommodated on the conveyor belt 101 is 2, a person skilled in the art may increase the length of the belt so that the number of the sample racks 104 that can be accommodated on the conveyor belt 101 is greater than 2, which is not limited by the embodiment of the present invention.

The positional relationship among the first sample rack 801, the next sample rack 802, and other sample racks is shown in fig. 8. The sample rack shown in fig. 8 can hold 10 samples, and the conveyor belt 101 is loaded with a next sample rack 802 after the first sample rack 801. The loading platform 102 has a sample rack 104 thereon, and the sample rack 104 is waiting to be loaded onto the conveyor belt 101. The unloading platform 105 has a sample rack 104, and all samples on the sample rack 104 have been measured.

It should be noted that although fig. 8 shows specific positions of the preprocessing bit 106 and the capture bit 103, those skilled in the art may overlap the positions of the capture bit 103 and the preprocessing bit 106 or separate the positions. In an example, the positions of the capture bit 103 and the preprocessing bit 106 may also be interchanged, which is not limited by the embodiment of the present invention.

Further, a plurality of grabbing positions 103 and/or a plurality of preprocessing positions 106 and the like can be arranged in the test instrument, so that the test instrument can perform test operation on a plurality of samples at the same time, and the transportation efficiency of the test instrument is improved.

Fig. 9 is a flowchart illustrating a sample transportation method according to an embodiment of the invention. As shown in fig. 9, the sample transport method includes steps 901 to 905.

In step 901, a first sample rack 801 is pushed from the loading platform 102 to a sample rack transport location on the conveyor belt 101.

In one example, a sensor is disposed on the loading platform 102, and when the sensor detects that a sample rack 104 is placed on the loading platform 102, one of the sample rack transport positions is moved to an exit position of the loading platform 102 to push the first sample rack 801 onto the sample rack transport position.

In step 902, when the sample bit on the first sample rack 801 moves to the capture bit 103, it is determined whether the sample bit moved to the capture bit 103 is the target sample bit. The target sample position is used to determine whether a next sample rack 802 needs to be continuously pushed onto the conveyor belt 101.

In one example, the target position number of the target sample position on the sample rack 104 may be obtained according to the number of sample positions that can be accommodated on the sample rack 104, the number of sample positions between the loading platform 102 and the grabbing position 103, and a predetermined number, and then whether the sample position moved to the grabbing position 103 is the target sample position may be determined according to the position number of the sample position moved to the grabbing position 103 and the target position number. If the position number of the sample position moved to the capture position 103 is consistent with the target position number, it indicates that the sample position moved to the capture position 103 is the target sample position; if the position number of the sample bit moved to the capture bit 103 is not identical to the target position number, it indicates that the sample bit moved to the capture bit 103 is not the target sample bit.

Specifically, the target position number m of the target sample on the sample rack 104 can be calculated by using the following formula:

m＝n-j+a-1 (1)

where n is the number of sample bits that can be accommodated in the sample rack 104, j is the number of sample bits between the end of the loading platform 102 facing the capture position (see side a in fig. 1) and the capture position 103, a is a predetermined number, where m and n are positive integers, j and a are integers greater than or equal to 0, and m satisfies: 0< m.ltoreq.n, the predetermined number being the number of sample bits of the output information indicating whether the sample needs to be reviewed.

The position of the target sample on the sample holder 104 is illustrated in connection with fig. 1-8.

Let the number n of sample bits that can be accommodated in the sample rack 104 be 10, the number a of sample bits corresponding to the delay time of the sample test result be 2, and the number j of sample bits between the loading platform 102 and the capture bit 103 be 4.

When the next sample rack 802 is pushed to the loading platform 102, the sample position No. 7 on the first sample rack 801 is transported to just below the grabbing position 103, and since the length of the conveyor belt 101 is determined and limited by the next sample rack 802, the first sample rack 801 can only move forward and cannot move backward. Also, since the number of sample bits corresponding to the delay of the sample test result is 2, when the sample bit No. 7 on the first sample rack 801 is conveyed below the grip bit 103, the test result of the first 5 samples can be acquired at maximum. Therefore, when the sample position No. 7 on the first sample rack 801 is transported to the position below the grabbing position 103, at least all the samples on the first 5 sample positions are required to be tested, and the sample injection on the next sample rack 802 can be started, so as to obtain the sample position No. 7 on the sample rack 104 to which the target sample is assigned.

It should be noted that the number of sample bits that can be accommodated in the sample rack 104, the number of sample bits between the loading platform 102 and the grabbing position 103, and the predetermined number of values are not fixed in the embodiment of the present invention. The number of sample positions that can be accommodated in the sample rack 104 and the number of sample positions between the loading platform 102 and the grasping position 103 can be adjusted according to actual conditions, and the predetermined number can be determined according to the testing rate of the testing instrument for a single sample.

It is to be understood that the formula for calculating the target position number of the target sample on the sample rack 104 in the embodiment of the present invention is not fixed. The person skilled in the art can adjust equation (1) in the embodiment of the present invention according to the length of the conveyor belt 101, the width of the sample rack transport location and the width of the loading platform 102.

In step 903, if the sample position moved to the capture position 103 is the target sample position, it is determined whether all the sample positions other than the predetermined number of sample positions located before the target sample position on the first sample rack 801 have completed the test. Next to the above example, i.e., whether all the other sample bits (first 5 sample bits) than the predetermined number of sample bits (2 sample bits) located before the target sample bit (sample No. 7) on the first sample stage 801 have completed the test.

In one example, if all of the sample positions other than the predetermined number of sample positions located before the target sample position on the first sample rack 801 satisfy that no review or no sample is required, all of the sample positions other than the predetermined number of sample positions located before the target sample position on the first sample rack 801 complete the test. That is, the first 5 sample positions on the first sample rack 801 all satisfy the requirement of no retest or no sample placement, then the first 5 samples all complete the test.

In another example, if any of the other than the predetermined number of sample positions located before the target sample position on the first sample stage 801 is not satisfied and no review or no sample is placed, all of the other than the predetermined number of sample positions located before the target sample position on the first sample stage 801 are not tested. That is, any one of the first 5 sample positions on the first sample rack 801 is not satisfied and does not need to be checked again or no sample is placed, the first 5 samples are not all tested.

In step 904, if all the sample positions other than the predetermined number of sample positions located before the target sample position on the first sample rack 801 have been tested, it is determined whether the next sample rack 802 is present on the loading platform 102.

In step 905, if there is a next sample rack 802 on the loading platform 102, the next sample rack 802 is pushed from the loading platform 102 to the next sample rack transport position of the conveyor belt 101.

In one example, it may be determined whether the next sample rack transport location is located at the exit location of the loading dock 102; if the next sample rack transport position is not located at the exit position of the loading platform 102, the next sample rack transport position is moved to the exit position of the loading platform 102, and the next sample rack 802 is pushed from the loading platform 102 to the next sample rack transport position of the conveyor belt 101.

As described above, the embodiment of the present invention employs a plurality of determination steps, which sequentially determine whether or not the sample position moved to the grasping position 103 is the target sample position, determine whether or not all the other sample positions except the predetermined number of sample positions located before the target sample position on the first sample rack 801 have been tested, and determine whether or not the next sample rack 802 is present on the loading platform 102. The plurality of determination steps enable the conveyor belt 101 to continuously sample the next sample rack 802 satisfying the plurality of determination steps while the first sample rack 801 is loaded. Therefore, compared with the prior art in which only one sample rack 104 can be transported at a time and the next sample rack 802 can be transported only after the sample rack 104 is unloaded from the conveyor belt 101, the sample transporting method in the embodiment of the present invention can improve the transporting efficiency of the sample.

Fig. 10 is a flowchart illustrating a sample transportation method according to another embodiment of the present invention. Fig. 10 differs from fig. 9 in that, after determining whether the sample bit moved to the capture bit 103 is the target sample bit in step 902, the sample transport method further includes step 906 and step 907 in fig. 10.

In step 906, the movement of the conveyor belt 101 is paused, and the first sample at the target sample position is grabbed for testing until the grabbing of the first sample from the target sample position is completed, and the movement of the conveyor belt 101 is resumed.

In step 907, after the first sample test is finished and the target sample position moves to the capture position 103, the movement of the conveyor belt 101 is suspended until the first sample is placed back on the target sample position and the movement of the conveyor belt 101 is resumed.

That is, after the sample position on the sample rack 104 is moved to the grabbing position 103, it is necessary to wait in situ for the sample to be sampled or the sample to be put back, and only after the sampling operation or the putting back operation is completed, the next step can be performed, so that it can be avoided that the conveyor belt 101 moves when the sampling operation or the putting back operation is performed, which results in that the sampling operation or the putting back operation of the sample cannot be performed accurately.

In one example, the next step, such as pushing the next sample rack 802 from the loading platform 102 to the next sample rack transport location on the conveyor belt 101, may be performed during a time period after the grabbing task of the first sample is completed and before the put-back task begins, or during a time period after the put-back task is completed and before the conveyor belt 101 resumes moving.

After the end of the first sample test, the sample transport method in the embodiment of the present invention further includes: and receiving a test result of the first sample, judging whether the test result of the first sample is abnormal or not, if so, moving the first sample to the grabbing position 103 again after the test of the current sample is finished so as to recheck the first sample.

Fig. 11 is a flowchart illustrating a sample transportation method according to another embodiment of the present invention. Fig. 11 is different from fig. 9 in that, after step 905 in fig. 9, the sample transport method further includes

steps

908 and 909 in fig. 11 to perform an unloading operation for the sample rack 104.

In step 908, it is determined whether all samples on the first sample rack 801 have been tested, i.e., all samples on the first sample rack 801 do not need to be re-tested.

In step 909, if all the samples on the first sample rack 801 have been tested, the first sample rack 801 is moved to the entrance position of the unloading platform 105, and the first sample rack 801 is transferred from the conveyor belt 101 to the unloading platform 105.

In one example, after all samples on the first sample rack 801 have been tested, the first sample rack 801 may be moved directly from the conveyor belt 101 to the unloading platform 105.

In another example, after all the samples on the first sample rack 801 have been tested, it may be determined whether a next sample rack 802 exists on the conveyor belt 101, if the next sample rack 802 exists on the conveyor belt 101, the test of the samples on the sample positions on the next sample rack 802 is continued, and in the test process of the samples on the next sample rack 802, when the first sample rack 801 moves to the entrance position of the unloading platform 105, the first sample rack 801 is transferred from the conveyor belt 101 to the unloading platform 105, so that the conveyor belt 101 does not need to move the first sample rack 801 to the unloading platform 105 quickly, but can move the first sample rack 801 to the entrance position of the unloading platform 105, and the samples on the next sample rack 802 are tested sequentially, so that the test efficiency of the samples is improved.

Further, in order to simplify the control logic of the conveyor belt 101, the number of the next sample rack 802 may be updated to the first sample rack 801 after the first sample rack 801 is transferred from the conveyor belt 101 to the unloading platform 105, but the data of the sample measurement information, the state, and the like of the sample rack 104 itself is not changed.

In addition, the sample transport method in the embodiment of the present invention further includes a step of preprocessing the sample rack 104 or the sample position on the sample rack 104.

In one example, when the first sample rack 801 moves to the preprocessing station, the first sample rack 801 may be preprocessed to obtain information that the sample rack 104 passes through the preprocessing station, so as to guide the grabbing operation of the grabbing station 103.

In another example, when the sample position on the first sample stage 801 moves to the preprocessing position, it is determined whether or not a sample is present on the sample position, and if a sample is present on the sample position, basic information required for the test of the sample is acquired.

As described above, an information acquisition device, such as a radio frequency card reader or a code scanner, may be set at the preprocessing bits. For example, a label 107 may be disposed on the sample rack 104 or the sample, the label 107 includes a unique barcode or two-dimensional code, and the information of the sample rack 104 or the sample is obtained by scanning the barcode or two-dimensional code on the label 107.

When there is only one sample rack 104 on the conveyor belt 101, a sample may be preprocessed, for example, whether the sample exists or not may be judged, and if the sample exists, a code scanning operation may be performed until all sample positions on the sample rack 104 have been preprocessed.

When the number of sample racks 104 on the conveyor belt 101 is greater than one, in conjunction with the sample site locations shown in fig. 1-6, all samples on the "first" sample rack 104 and a portion of the sample racks 104 on the "next" sample rack 104 may be subjected to a pre-processing operation until all sample sites within these ranges have been pre-processed.

According to the embodiment of the present invention, the preprocessing operation and the grabbing operation may be performed simultaneously, that is, the preprocessing operation is performed on one sample bit, and the grabbing operation is performed on another sample bit, or the preprocessing operation and the grabbing operation may be performed separately, that is, after one or more sample bits all complete the preprocessing operation, the grabbing operation is performed separately, which is not limited in the embodiment of the present invention.

According to the embodiment of the invention, the sample transportation process of the sample injector of the test instrument comprises the processes of starting, sample rack loading, sample rack pretreatment, sample rack grabbing/replacing, sample rack unloading, ending and the like. Preferably, the priority of these flows is: the sample grabbing/replacing, the sample rack loading, the sample rack preprocessing, the sample rack unloading and the sample injection process are finished, and the sample grabbing/replacing, the sample rack loading, the sample rack preprocessing, the sample rack unloading and the sample injection process are executed successively according to the priority relationship, so that the optimal sample injection effect can be achieved, and the waiting time for the host to obtain the samples is shorter. Of course, a person skilled in the art may also adjust the priority order among the flows in actual situations, which is not limited in the embodiment of the present invention.

As described above, the embodiment of the present invention coordinates and manages the transportation process of the sample, and allocates more reasonable execution time, execution sequence, and the like to each process from the operation of the sample to the test, so that the sample injector of the test instrument realizes rapid automatic sample injection, the waiting time for the host to acquire the sample is reduced, and the test speed of the complete machine to the sample is accelerated.

Fig. 12 is a schematic structural diagram of a sample transport device according to an embodiment of the present invention. As shown in fig. 12, the sample transport apparatus includes a control module 1201, a first determination module 1202, a first determination module 1203, and a third determination module 1204.

The control module 1201 is configured to control the first sample rack 801 to be pushed from the loading platform 102 to a sample rack transport position of the conveyor belt 101.

The first determining module 1202 is configured to determine whether the sample bit moved to the grabbing bit 103 is the target sample bit when the sample bit on the first sample rack 801 moves to the grabbing bit 103.

Specifically, the first judgment module 1202 may include a calculation unit and a judgment unit. The calculating unit is used for obtaining the target position number of the target sample position on the sample rack 104 according to the number of sample positions which can be accommodated on the sample rack 104, the number of sample positions between the loading platform 102 and the grabbing position 103 and a preset number. The judging unit is used for judging whether the sample position moved to the grabbing position 103 is the target sample position according to the position number and the target position number of the sample position moved to the grabbing position 103.

The first determining module 1203 is configured to determine whether all the sample positions located before the target sample position on the first sample rack 801 except the predetermined number of sample positions are tested if the sample position moved to the capturing position 103 is the target sample position.

Specifically, if all the other sample positions except the predetermined number of sample positions located before the target sample position on the first sample rack 801 satisfy the condition that the retest is not required or no sample is placed, it is determined that all the other sample positions except the predetermined number of sample positions located before the target sample position on the first sample rack 801 have completed the test; if any of the other sample positions than the predetermined number of sample positions located before the target sample position on the first sample rack 801 is not satisfied and no review is required or no sample is placed, it is determined that all of the other sample positions than the predetermined number of sample positions located before the target sample position on the first sample rack 801 have not completed the test.

The third determining module 1204 is configured to determine whether the next sample rack 802 exists on the loading platform 102 if all the other sample positions except the predetermined number of sample positions located before the target sample position on the first sample rack 801 have been tested.

The control module 1201 is further configured to control the next sample rack 802 to be pushed from the loading platform 102 to the next sample rack transport position of the conveyor belt 101 if the next sample rack 802 exists on the loading platform 102.

According to the embodiment of the present invention, after determining whether the sample position moved to the capture position 103 is the target sample position, the control module 1201 is further configured to control the movement of the conveyor belt 101 to be suspended, and control the capture test on the first sample on the target sample position until the capture of the first sample from the target sample position is completed, and control the conveyor belt 101 to resume moving; after the first sample test is finished and the target sample position moves to the grabbing position 103, the movement of the control conveyor belt 101 is suspended until the first sample is placed back on the target sample position, and the control conveyor belt 101 resumes moving. It is thereby possible to prevent the conveyor belt 101 from moving when the sampling operation or the replacement operation is performed for the sample, resulting in failure to accurately perform the sampling operation or the replacement operation for the sample.

In one example, the control module 1201 is further configured to control the next sample rack 802 to be pushed from the loading platform 102 to the next sample rack transport location on the conveyor belt 101 during a time period after the grabbing task of the first sample is completed and before the replacing task is started.

In another example, or during a period of time after completion of the put-back task and before the conveyor belt 101 resumes moving, the next sample rack 802 is controlled to be pushed from the loading platform 102 onto the next sample rack transport location on the conveyor belt 101.

According to an embodiment of the present invention, after the first sample test is finished, the sample transport device further includes a receiving module and a fourth judging module. The receiving module is used for receiving the test result of the first sample; the fourth judging module is used for judging whether the test result of the first sample is abnormal or not; the control module 1201 is further configured to, if the test result of the first sample is abnormal, control the first sample to move to the capture position 103 again after the test of the current sample is completed, so as to perform a retest on the first sample.

According to an embodiment of the present invention, in order to perform the unloading operation on the sample rack 104, the sample transport apparatus further includes a fifth determining module, wherein the fifth determining module is configured to determine whether the next sample rack transport position is located at the exit position of the loading platform 102; the control device is further configured to control the next sample rack transport position to move to the exit position of the loading platform 102 and control the next sample rack 802 to be pushed from the loading platform 102 to the next sample rack transport position of the conveyor belt 101 if the next sample rack transport position is not located at the exit position of the loading platform 102.

In one example, the sample transportation device further includes a sixth judging module, which is used to judge whether all samples on the first sample rack 801 have been tested; the control module 1201 is also configured to control the movement of the first sample rack 801 to the entrance position of the unloading platform 105 and the movement of the first sample rack 801 from the conveyor belt 101 to the unloading platform 105 if all samples on the first sample rack 801 have been tested.

In another example, the sample transport apparatus further includes a seventh judging module, which is configured to judge whether the next sample rack 802 exists on the conveyor belt 101; the controller is further configured to control the next sample rack 802 to continue testing samples at the sample positions of the next sample rack 802 if the next sample rack 802 is present on the conveyor belt 101, and to control the first sample rack 801 to move from the conveyor belt 101 to the unloading platform 105 when the first sample rack 801 moves to the entrance position of the unloading platform 105 during testing of samples at the next sample rack 802. The conveyor belt 101 does not need to move the first sample rack 801 to the unloading platform 105 quickly, but can move sequentially, and the first sample rack 801 can be moved to the entrance position of the unloading platform 105 while samples on the next sample rack 802 are tested sequentially, so that the test efficiency of the samples is improved.

The embodiment of the invention also provides a test instrument. The test instrument includes a sample transport device as described above. It will be appreciated that the sample transport device described above may be implemented as a separately provided programmable logic controller or may be integrated into the main controller of the test instrument.

An embodiment of the present invention also provides a computer-readable storage medium on which a program is stored, which when executed by a processor implements the sample transport method as described above.

It should be clear that the embodiments in this specification are described in a progressive manner, and the same or similar parts in the embodiments are referred to each other, and each embodiment focuses on the differences from the other embodiments. For the device embodiments, reference may be made to the description of the method embodiments in the relevant part. Embodiments of the invention are not limited to the specific steps and structures described above and shown in the drawings. Those skilled in the art may make various changes, modifications and additions or change the order between the steps after appreciating the spirit of the embodiments of the invention. Also, a detailed description of known process techniques is omitted herein for the sake of brevity.

The functional blocks shown in the above-described structural block diagrams may be implemented as hardware, software, firmware, or a combination thereof. When implemented in hardware, it may be, for example, an electronic circuit, an Application Specific Integrated Circuit (ASIC), suitable firmware, plug-in, function card, or the like. When implemented in software, the elements of an embodiment of the invention are the programs or code segments used to perform the required tasks. The program or code segments may be stored in a machine-readable medium or transmitted by a data signal carried in a carrier wave over a transmission medium or a communication link. A "machine-readable medium" may include any medium that can store or transfer information. Examples of a machine-readable medium include electronic circuits, semiconductor memory devices, ROM, flash memory, Erasable ROM (EROM), floppy disks, CD-ROMs, optical disks, hard disks, fiber optic media, Radio Frequency (RF) links, and so forth. The code segments may be downloaded via computer networks such as the internet, intranet, etc.

Claims

1. A sample conveying method is used for a test instrument and is characterized in that the test instrument comprises a conveyor belt, and a loading platform and a grabbing position which are sequentially arranged along the conveying direction of the conveyor belt, wherein a plurality of sample rack conveying positions are arranged on the conveyor belt;

the method comprises the following steps:

pushing a first sample rack from the loading platform to a sample rack transport location on the conveyor;

when the sample position on the first sample rack moves to the grabbing position, judging whether the sample position moving to the grabbing position is a target sample position, wherein the target sample position is used for judging whether a next sample rack needs to be continuously pushed onto the conveyor belt;

if the sample position moved to the grabbing position is the target sample position, judging whether all other sample positions, except for a preset number of sample positions, positioned in front of the target sample position on the first sample rack are tested, wherein the preset number is the number of sample positions corresponding to the delay time of output information indicating whether the samples need to be rechecked;

if all the other sample positions except the predetermined number of sample positions on the first sample rack before the target sample position are tested, judging whether the next sample rack exists on the loading platform;

2. The method of claim 1, wherein the determining whether the sample bit moved to the grab bit is a target sample bit comprises:

obtaining the target position number of the target sample position on the sample rack according to the number of sample positions which can be accommodated on the sample rack, the number of sample positions between the loading platform and the grabbing position and the preset number;

and judging whether the sample position moved to the grabbing position is the target sample position or not according to the position number of the sample position moved to the grabbing position and the target position number.

3. The method of claim 2, wherein said deriving a target position number of the target sample position on the sample rack from the number of sample positions that can be accommodated on the sample rack, the number of sample positions between the loading platform and the grasping position, and the predetermined number comprises:

m＝n-j+a-1

wherein n is the number of sample bits that can be accommodated on the sample rack, j is the number of sample bits between the end of the loading platform facing the gripping location and the gripping location, a is the predetermined number, wherein m and n are positive integers, j and a are integers greater than or equal to 0, and m satisfies: m is more than 0 and less than or equal to n.

4. The method of claim 1, wherein said determining whether all but a predetermined number of sample sites located before the target sample site on the first sample rack have completed testing comprises:

if all of the other sample positions, except the predetermined number of sample positions, in the first sample rack before the target sample position meet the condition that no retest or no sample is required, all of the other sample positions, except the predetermined number of sample positions, in the first sample rack before the target sample position are tested;

if any of the other sample positions than the predetermined number of sample positions on the first sample rack before the target sample position is not satisfied and no review is required or no sample is placed, all of the other sample positions than the predetermined number of sample positions on the first sample rack before the target sample position are not tested.

5. The method of claim 1, wherein after the determining whether the sample bit moved to the grab bit is a target sample bit, the method further comprises:

pausing the movement of the conveyor belt, grabbing the first sample on the target sample position for testing until the grabbing of the first sample from the target sample position is completed, and resuming the movement of the conveyor belt;

and after the first sample test is finished and the target sample position moves to the grabbing position, suspending the movement of the conveyor belt until the first sample is put back on the target sample position, and resuming the movement of the conveyor belt.

6. The method of claim 5, wherein said pushing the next sample rack from the loading platform onto the next sample rack transport location on the conveyor belt comprises:

and pushing the next sample rack from the loading platform to the next sample rack conveying position of the conveyor belt in a time period from the completion of the grabbing task of the first sample to the beginning of the replacing task or in a time period from the completion of the replacing task to the restoration of the movement of the conveyor belt.

7. The method of claim 5, wherein after the first sample test ends, the method further comprises:

receiving a test result of the first sample;

judging whether the test result of the first sample is abnormal or not;

and if the test result of the first sample is abnormal, after the test of the current sample is finished, moving the first sample to the grabbing position again so as to perform retest on the first sample.

8. The method of claim 1, wherein said pushing the next sample rack from the loading platform onto a next sample rack transport location on the conveyor belt comprises:

judging whether the next sample rack conveying position is located at the outlet position of the loading platform;

and if the next sample rack conveying position is not located at the outlet position of the loading platform, moving the next sample rack conveying position to the outlet position of the loading platform, and pushing the next sample rack from the loading platform to the next sample rack conveying position of the conveyor belt.

9. The method of claim 1, wherein the test instrument further comprises an unloading station disposed along the transport direction after the grasping location;

after said pushing the first sample rack from the loading platform to a sample rack transport location on the conveyor belt, the method further comprises:

judging whether all samples on the first sample rack are tested or not;

if all samples on the first sample rack have been tested, the first sample rack is moved to an entrance position of the unloading platform, and the first sample rack is transferred from the conveyor belt to the unloading platform.

10. The method of claim 9, wherein after all samples on the first sample rack have completed testing, the method further comprises:

judging whether a next sample rack exists on the conveying belt;

if the next sample rack exists on the conveyor belt, continuing the test of the samples on the sample positions on the next sample rack, and in the test process of the samples on the next sample rack, when the first sample rack moves to the entrance position of the unloading platform, transferring the first sample rack to the unloading platform from the conveyor belt.

11. The method of claim 9 or 10, wherein after said transferring said first sample rack from said conveyor belt to said unloading platform, said method further comprises:

and updating the number of the next sample rack to be the first sample rack.

12. The method of claim 9, wherein the test instrument further comprises a pre-processing station disposed along the conveying direction of the conveyor belt between the loading platform and the unloading platform;

the method further comprises the following steps:

when the first sample rack moves to the preprocessing position, acquiring information that the sample rack passes through the preprocessing position so as to guide the grabbing operation of the grabbing position;

and/or the presence of a gas in the gas,

when the sample position on the first sample rack moves to the preprocessing position, judging whether a sample exists on the sample position;

and if the sample exists on the sample position, acquiring basic information required by the test of the sample.

13. A sample conveying device is used for a test instrument and is characterized in that the test instrument comprises a conveyor belt, and a loading platform and a grabbing position which are sequentially arranged along the conveying direction of the conveyor belt, wherein a plurality of sample rack conveying positions are arranged on the conveyor belt;

the device comprises:

the control module is used for controlling the first sample rack to be pushed from the loading platform to one sample rack conveying position of the conveyor belt;

the first judging module is used for judging whether the sample position moved to the grabbing position is a target sample position or not when the sample position on the first sample rack is moved to the grabbing position, and the target sample position is used for judging whether a next sample rack needs to be continuously pushed onto the conveyor belt or not;

a second determination module, configured to determine whether all of the sample bits located before the target sample bit on the first sample rack except a predetermined number of sample bits corresponding to a delay time of output information indicating whether the sample needs to be retested, have been tested if the sample bit moved to the capture bit is the target sample bit;

a third determining module, configured to determine whether the next sample rack exists on the loading platform if all of the other sample positions, except the predetermined number of sample positions, on the first sample rack before the target sample position are tested;

the control module is further used for controlling the next sample rack to be pushed to the next sample rack conveying position of the conveyor belt from the loading platform if the next sample rack exists on the loading platform.

14. The apparatus of claim 13, wherein the first determining module comprises:

the calculating unit is used for obtaining a target position number of the target sample position on the sample rack according to the number of sample positions which can be accommodated on the sample rack, the number of sample positions between the loading platform and the grabbing position and the preset number;

and the judging unit is used for judging whether the sample position moved to the grabbing position is the target sample position or not according to the position number of the sample position moved to the grabbing position and the target position number.

15. The apparatus of claim 13, wherein the second determination module is specifically configured to,

if all the other sample positions except the predetermined number of sample positions in the first sample rack before the target sample position meet the requirement of no retest or no sample placement, judging that all the other sample positions except the predetermined number of sample positions in the first sample rack before the target sample position are tested;

if any one of the other sample positions than the predetermined number of sample positions in the first sample rack before the target sample position is not satisfied and no retest is required or no sample is placed, judging that all the other sample positions except the predetermined number of sample positions in the first sample rack before the target sample position are not tested.

16. The apparatus of claim 13, wherein the control module is further configured to,

controlling the movement of the conveyor belt to pause, controlling the first sample on the target sample position to be subjected to grabbing test until the first sample is grabbed from the target sample position, and controlling the conveyor belt to resume moving;

and after the first sample test is finished and the target sample position moves to the grabbing position, controlling the movement of the conveyor belt to be suspended until the first sample is put back to the target sample position, and controlling the conveyor belt to resume moving.

17. The apparatus of claim 16, wherein the control module is further configured to control the next sample rack to be pushed from the loading platform to a next sample rack transport location on the conveyor belt during a time period after completion of the first sample capture task and before commencement of a put back task, or during a time period after completion of the put back task and before resumption of the conveyor belt movement.

18. The apparatus of claim 16, further comprising a receiving module and a fourth determining module, wherein,

the receiving module is used for receiving the test result of the first sample;

the fourth judging module is used for judging whether the test result of the first sample is abnormal or not;

the control module is further configured to, if the test result of the first sample is abnormal, control the first sample to move to the capturing position again after the test of the current sample is completed, so as to perform retest on the first sample.

19. The apparatus of claim 13, further comprising a fifth determination module, wherein,

the fifth judging module is used for judging whether the next sample rack conveying position is located at the outlet position of the loading platform;

the control device is further used for controlling the next sample rack conveying position to move to the outlet position of the loading platform and controlling the next sample rack to be pushed to the next sample rack conveying position of the conveyor belt from the loading platform if the next sample rack conveying position is not located at the outlet position of the loading platform.

20. The apparatus of claim 13, wherein the test instrument further comprises an unloading platform disposed along the transport direction after the grasping location;

the apparatus further comprises a sixth determining module, wherein,

the sixth judging module is used for judging whether all the samples on the first sample rack are tested or not;

the control module is further configured to control the first sample rack to move to the entrance position of the unloading platform and control the first sample rack to be transferred from the conveyor belt to the unloading platform if all samples on the first sample rack have been tested.

21. The apparatus of claim 20, further comprising a seventh determining module, wherein,

the seventh judging module is used for judging whether a next sample rack exists on the conveying belt;

the controller is further configured to control, if the next sample rack exists on the conveyor belt, to continue testing samples at the sample positions on the next sample rack, and to control, during a test process of a sample on the next sample rack, the first sample rack to be transferred from the conveyor belt to the unloading platform when the first sample rack is moved to the entrance position of the unloading platform.

22. The apparatus of claim 20 or 21, further comprising an update module for updating the number of the next sample rack to the first sample rack.

23. The apparatus of claim 20, wherein the test instrument further comprises a pre-processing station disposed along the conveying direction of the conveyor belt between the loading platform and the unloading platform;

the control module is further configured to send a control instruction for acquiring information of the first sample rack when the first sample rack moves to the preprocessing position, so as to guide a grabbing operation of the grabbing position; and/or when the sample position on the first sample rack moves to the preprocessing position, judging whether a sample exists on the sample position, and if so, sending a control instruction for acquiring basic information required by the test of the sample.

24. The apparatus of claim 13, wherein the conveyor belt is provided with a plurality of protrusions at equal intervals, and a portion between two adjacent protrusions forms a sample rack carrying position, and the width of the sample rack carrying position is smaller than or equal to the outlet width of the loading platform.

25. A test instrument comprising a sample transportation device as claimed in any one of claims 13 to 24.

26. A computer-readable storage medium on which a program is stored, the program, when executed by a processor, implementing a sample transport method as claimed in any one of claims 1 to 12.