CN108760628B

CN108760628B - Test strip test position positioning method and urine dry chemical analyzer

Info

Publication number: CN108760628B
Application number: CN201810284891.6A
Authority: CN
Inventors: 丁杨; 熊飞; 付浩; 李奇武
Original assignee: Maccura Medical Electronics Co Ltd
Current assignee: Maccura Medical Electronics Co Ltd
Priority date: 2018-04-02
Filing date: 2018-04-02
Publication date: 2020-08-28
Anticipated expiration: 2038-04-02
Also published as: CN108760628A

Abstract

The invention discloses a test strip test position positioning method and a urine dry chemistry analyzer, wherein the test strip test position positioning method comprises the following steps: determining validity of first position information and second position information of the test strip, and reducing the conveying speed of the test strip when at least one of the first position information and the second position information is valid; determining the validity of the third position information and the fourth position information of the test strip, and stopping the test strip from being transmitted when the third position information and the fourth position information are simultaneously valid; the validity of the first position information, the second position information, the third position information and the fourth position information of the test strip after the conveying is stopped is determined, the test result of the test strip is determined to be valid when the first position information, the second position information, the third position information and the fourth position information are simultaneously valid, the inclination of the test strip is determined and displayed when at least one of the four position information is invalid, the positioning process is simple and rapid, and the test strip can be accurately positioned in real time.

Description

Test strip test position positioning method and urine dry chemical analyzer

Technical Field

The invention relates to the technical field of medical detection, in particular to a test strip test position positioning method and a urine dry chemistry analyzer.

Background

In the technical field of medical detection, urine detection is a routine examination item of a doctor on a clinical patient, a semi-automatic urine analyzer is mainly adopted for urine dry chemical detection, and an exact diagnosis index is obtained according to a color result of a reaction between a urine sample and each chemical reagent block on a test strip.

At present, semi-automatic urine analyzer includes fortune strip device and test head, and the test position location of test paper strip is confirmed to test position distance through calibration test paper strip initial position, through fixed initial position, and test position is initial position + distance after the distance is confirmed, and the calibration method of distance adopts the centre joint test, and concrete step is as follows: the strip conveying device conveys the center seam strip to a testing area, the testing head collects data from three parts of the center seam strip from top to bottom to form three curves, and the testing head records distance data passing through the center seam test.

The existing test position positioning method of the test strip needs to perform a middle seam test to calibrate the test position every time the test strip is started, the system condition of an analyzer cannot be reflected in real time, if a middle seam strip is lost, the test position calibration cannot be performed in time, the calibration precision of the test position depends on the quality of the middle seam strip, if the middle seam strip is aged or loses a part due to factors such as external force, time and the like, the test position calibration cannot be performed, and whether the test strip is horizontal or not in real time in each test can not be reflected, for example, the test strip is inclined due to accidental touch of the analyzer, at the moment, a test head does not accurately detect a test paper block, and obviously detection is invalid, so that the design of the test strip position positioning method capable of realizing accurate positioning and the urine dry chemical analyzer is particularly important.

Disclosure of Invention

The invention provides a test strip test position positioning method and a urine dry chemistry analyzer, wherein the test strip test position positioning method can accurately reach the test state of a test strip, real-time and accurate positioning of the test strip is realized, the urine dry chemistry analyzer can realize accurate positioning of the test strip, the detection precision is improved, and the accuracy is high.

A test strip test position positioning method comprises the following steps:

determining validity of first position information and second position information of the test strip, and reducing the test strip conveying speed when at least one of the first position information and the second position information is valid, wherein the first position and the second position are positioned at the rear edge of the test strip standard test position along the test strip conveying direction, and the first position and the second position are arranged along the test strip length direction;

determining the effectiveness of third position information and fourth position information of the test strip, stopping the test strip from being conveyed and starting the test when the third position information and the fourth position information are effective at the same time, wherein the third position and the fourth position are positioned at the front edge of a standard test position of the test strip along the conveying direction of the test strip, and the third position and the fourth position are arranged along the length direction of the test strip;

and determining the validity of the first position information, the second position information, the third position information and the fourth position information of the test strip after the conveying is stopped, determining and displaying that the test result of the test strip is valid when the first position information, the second position information, the third position information and the fourth position information are simultaneously valid, and determining and displaying that the test strip inclines when at least one of the first position information, the second position information, the third position information and the fourth position information is invalid.

In the test strip test position positioning method, an operator places a test strip for formal test on a strip conveying device; compared with the middle seam calibration in the background technology, the middle seam test is not required to be carried out once when the analyzer is started every time, the middle seam strip is not relied, and the system condition of the analyzer is reflected in real time.

When the test strip is positioned, the test strip is conveyed to a test area through the strip conveying device, firstly, when the strip conveying device conveys the test strip to a first position and a second position, the effectiveness of the test strip at the first position information and the second position information is collected and judged, when at least one of the first position information and the second position information is effective, the conveying speed of the test strip is reduced, and the test strip is slowly conveyed continuously; then when the strip transporting device transports the test strip to a third position and a fourth position for testing, the effectiveness of the test strip at the third position information and the fourth position information is collected and judged, when the third position information and the fourth position information are effective at the same time, the strip transporting device is stopped, the test strip is stopped from being transported, and the test is started; finally, after the transmission of the test strip is stopped, collecting and judging the effectiveness of the test strip at the first position information, the second position information, the third position information and the fourth position information, determining that the test result of the test strip is effective when the first position information, the second position information, the third position information and the fourth position information are effective simultaneously, determining that the test strip is inclined when at least one of the first position information, the second position information, the third position information and the fourth position information is ineffective, reminding an operator to perform subsequent operation by displaying that the test result of the test strip is effective or the test strip is inclined, wherein the test result is effective when the test result of the test strip is effective, and the test result; the positioning process is simple and rapid, the test strip position information of the four positions is collected to judge the position of the test strip, the test state of the test strip can be accurately detected, and the test strip can be accurately positioned in real time.

Preferably, the determining the validity of the first position information and the second position information of the test strip, and reducing the test strip transmission speed when at least one of the first position information and the second position information is valid specifically includes: collecting first position information and second position information; determining validity of the first location information and the second location information; and when at least one of the first position information and the second position information is effective, the strip-transporting device is controlled to slow down and continue to transport the test strips.

Preferably, the determining the validity of the third position information and the fourth position information of the test strip, and stopping the test strip from being transmitted and starting the test when the third position information and the fourth position information are both valid specifically includes: collecting third position information and fourth position information; determining validity of the third location information and the fourth location information; and when the third position information and the fourth position information are simultaneously effective, controlling the bar transporting device to stop and starting the test head to start testing.

Preferably, the determining the validity of the first position information, the second position information, the third position information and the fourth position information of the test strip after the transmission is stopped, and determining that the test result of the test strip is valid when the first position information, the second position information, the third position information and the fourth position information are valid at the same time specifically includes: collecting first position information, second position information, third position information and fourth position information after the test strip stops moving; determining validity of the first position information, the second position information, the third position information and the fourth position information; and when the first position information, the second position information, the third position information and the fourth position information are effective at the same time, determining that the test result of the test strip is effective, and displaying the test data and the test effective information.

Preferably, the determining the inclination of the test strip when at least one of the first position information, the second position information, the third position information and the fourth position information is invalid specifically includes: and determining the inclination of the test strip when at least one of the first position information, the second position information, the third position information and the fourth position information is invalid, and displaying the inclination of the test strip or testing valid information.

Preferably, the test strip is inclined to include:

the first position information is invalid, the second position information, the third position information and the fourth position information are valid at the same time, and one end of the test strip close to the third position inclines rightwards;

the second position information is invalid, the first position information, the third position information and the fourth position information are valid at the same time, and one end of the test strip close to the fourth position inclines rightwards;

the third position information and the fourth position information are not effective at the same time, and the inclination of the test strip is larger than the width of the test strip.

Preferably, the test strip test position locating method further comprises the following steps: the test paper strip is continuously inclined for 6 times, and system failure is displayed.

Preferably, the test strip is tilted for 6 times continuously, and a system fault is displayed, and the method specifically comprises the following steps: and determining whether the test strip tilts twice continuously, adding one to a twice tilting counter, not tilting twice simultaneously, resetting the counter, and displaying that the test strip tilts 6 times continuously and a system fails when the number of the counter is more than 5.

In addition, the invention also provides a urine dry chemical analyzer, which comprises a strip conveying device and a test head, wherein the strip conveying device is used for conveying test strips to a detection area, and the urine dry chemical analyzer also comprises four sensors for determining the test positions and the flatness of the test strips, wherein:

two sensors of the four sensors are positioned at the rear edge of the test strip standard test position along the test strip conveying direction and along the test strip length direction, the first sensor is positioned at the first position, the second sensor is positioned at the second position, the other two sensors are positioned at the front edge of the test strip standard test position along the test strip conveying direction and along the test strip length direction, the third sensor is positioned at the third position, and the fourth sensor is positioned at the fourth position;

the test head is arranged above the strip transporting device, is in signal connection with the strip transporting device and the four sensors, and is used for determining validity of a position signal sent by each sensor and whether a test position is valid, sending a deceleration signal to the strip transporting device when at least one of first position information and second position information is valid, sending a stop signal to the strip transporting device and starting a test when third position information and fourth position information are valid at the same time, determining that a test result of the test strip is valid when the first position information, the second position information, the third position information and the fourth position information of the test strip after transmission is stopped are valid at the same time, and determining and displaying inclination of the test strip when at least one of the first position information, the second position information, the third position information and the fourth position information is invalid.

Preferably, the test head comprises an analysis module and a display module, wherein:

the analysis module is connected with the strip transporting device and the four sensors in a signal mode and used for determining the validity of the position signal sent by each sensor and whether the test position is valid or not and controlling the transmission speed of the strip transporting device;

the display module is connected with the analysis module through signals and used for displaying the state of the test paper strip when receiving the display signal.

Drawings

FIG. 1 is a flowchart of a method for positioning a test position of a test strip according to the present invention;

FIG. 2 is a schematic structural diagram of a dry chemistry analyzer for urine according to the present invention;

FIG. 3 is a diagram of a positioning process of a method for positioning a test position of a test strip according to the present invention;

FIG. 4 is a schematic diagram of an inclination of a test strip according to the present invention;

FIG. 5 is another schematic diagram of an oblique test strip according to the present invention;

FIG. 6 is another schematic diagram of an oblique test strip according to the present invention;

FIG. 7 is another schematic diagram of an oblique test strip according to the present invention;

FIG. 8 is another schematic diagram of a dry chemistry analyzer for urine according to the present invention;

FIG. 9 is a schematic diagram of the position of the probe and the photoelectric sensor in FIG. 8;

FIG. 10 is a flow chart of a detection method of a urine dry chemistry analyzer according to the present invention;

fig. 11 is a scanning process diagram of a test head in the detection method of the urine dry chemistry analyzer provided by the invention.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

The urine dry chemical analyzer and the test position positioning method of the test strip are as follows:

as shown in fig. 1 and fig. 3, a test strip 1 is set to be conveyed in an X direction, and a method for positioning a test position of the test strip includes:

step S101, determining validity of first position information and second position information of the test strip 1, and reducing the conveying speed of the test strip 1 when at least one of the first position information and the second position information is valid, wherein the first position and the second position are positioned at the rear edge of a standard test position of the test strip 1 along the X direction, and the first position and the second position are arranged along the length direction of the test strip 1;

step S102, determining the effectiveness of third position information and fourth position information of the test strip 1 entering the farthest position of the test area in the length direction of the test strip 1, stopping conveying the test strip 1 when the third position information and the fourth position information are effective at the same time, wherein the third position and the fourth position are positioned at the front edge of a standard test position of the test strip 1 in the X direction, and the third position and the fourth position are arranged in the length direction of the test strip 1;

step S103, determining the validity of the first position information, the second position information, the third position information and the fourth position information of the test strip 1 after the transmission is stopped, determining and displaying that the test position of the test strip 1 is valid when the first position information, the second position information, the third position information and the fourth position information are simultaneously valid, and determining and displaying that the test strip 1 inclines when at least one of the first position information, the second position information, the third position information and the fourth position information is invalid.

In the test strip test position positioning method, an operator places a test strip 1 to be tested formally on a strip conveying device 3; compared with the middle seam calibration in the background technology, the middle seam test is not required to be carried out once when the analyzer is started every time, the middle seam strip is not relied, and the system condition of the analyzer is reflected in real time.

When positioning is carried out, the test strip 1 is conveyed to a test area through the strip conveying device 3, firstly, through step S101, when the strip conveying device 3 conveys the test strip 1 to a first position and a second position, the effectiveness of the test strip 1 at the first position information and the second position information is collected and judged, when at least one of the first position information and the second position information is effective, the conveying speed of the test strip 1 is reduced, and the test strip 1 is slowly conveyed; then, through step S102, when the strip transporting device 3 transports the test strip 1 to the third position and the fourth position, the validity of the test strip 1 at the third position information and the fourth position information is collected and judged, when the third position information and the fourth position information are valid at the same time, the strip transporting device 3 is stopped, and the transmission of the test strip 1 is stopped; finally, through step S103, after the test strip 1 stops being transmitted, the validity of the test strip 1 at the first position information, the second position information, the third position information and the fourth position information is collected and judged, when the first position information, the second position information, the third position information and the fourth position information are simultaneously valid, the test position of the test strip 1 is determined to be valid, when at least one of the first position information, the second position information, the third position information and the fourth position information is invalid, the test strip 1 is determined to be inclined, the operator is prompted to perform subsequent operations by displaying that the test result of the test strip is valid or the test strip is inclined, when the test result of the test strip is valid, the test result is valid.

The positioning process is simple and rapid, the position information of the test strip 1 at four positions is collected to judge the position of the test strip 1, the test state of the test strip 1 can be accurately detected, and the test strip 1 can be accurately positioned in real time.

In a preferred embodiment, as shown in fig. 3, determining validity of the first position information and the second position information of the test strip 1, and reducing a conveying speed of the test strip 1 when at least one of the first position information and the second position information is valid specifically includes: collecting first position information and second position information; determining validity of the first location information and the second location information; when at least one of the first position information and the second position information is effective, the strip-moving device 3 is controlled to slow down and continue to convey the test strip 1.

In the test position positioning method of the test strip, when the test strip 1 is conveyed to a test area through the strip conveying device 3, step S101 is executed, first position information and second position information of the test strip 1 entering the test area are collected, validity of the first position information and the second position information is judged when the test strip 1 is collected, invalidity of the first position information and the second position information is judged when the test strip 1 is not collected, when at least one of the first position information and the second position information is valid, it is indicated that the test strip 1 passes through, and at this time, the strip conveying device 3 is controlled to reduce the speed and continuously convey the test strip 1 to a corresponding test position at a lower speed.

In a preferred embodiment, as shown in fig. 3, determining validity of third position information and fourth position information of the test strip 1, and stopping the test strip 1 from being conveyed when both the third position information and the fourth position information are valid specifically includes: collecting third position information and fourth position information; determining validity of the third location information and the fourth location information; and controlling the bar-moving device 3 to stop when the third position information and the fourth position information are simultaneously effective.

In the test position positioning method of the test strip, when the test strip 1 is conveyed to a corresponding test position by the strip conveying device 3, step S102 is executed, third position information and fourth position information entering a test area are collected, validity of the third position information and the fourth position information is judged when the test strip 1 is collected, invalidity of the third position information and the fourth position information is judged when the test strip 1 is not collected, when the third position information and the fourth position information are simultaneously valid, it is indicated that the test strip 1 reaches the farthest position of the test area, at this time, the strip conveying device 3 is controlled to stop, and the test strip 1 stops.

In a preferred embodiment, as shown in fig. 3, the determining the validity of the first position information, the second position information, the third position information and the fourth position information of the test strip 1 after the conveying is stopped, and determining and displaying that the test position of the test strip 1 is valid when the first position information, the second position information, the third position information and the fourth position information are simultaneously valid specifically includes: collecting first position information, second position information, third position information and fourth position information after the test strip 1 stops moving; determining validity of the first position information, the second position information, the third position information and the fourth position information; and when the first position information, the second position information, the third position information and the fourth position information are simultaneously effective, determining that the test position of the test strip 1 is effective, and displaying the test data and the test effective information.

In the method for positioning the test position of the test strip, when the test strip 1 is transported to a corresponding test position by the strip transporting device 3 and stops being transported, step S103 is executed, first position information, second position information, third position information and fourth position information are collected, when the first position information, the second position information, the third position information and the fourth position information are simultaneously valid, it is indicated that the four positions can all collect the information of the test strip 1, that is, the test strip 1 covers the four positions simultaneously, and it is determined that the position of the test strip 1 at the time is valid, that is, the position of the test strip 1 in the test area is not inclined.

On the basis of the test position positioning method of the test strip, specifically, as shown in fig. 3, determining and displaying the inclination of the test strip 1 when at least one of the first position information, the second position information, the third position information, and the fourth position information is invalid specifically includes: and determining the inclination of the test strip 1 when at least one of the first position information, the second position information, the third position information and the fourth position information is invalid, and displaying the inclination of the test strip 1 or test valid information.

In the test position positioning method of the test strip, when at least one of the first position information, the second position information, the third position information and the fourth position information is invalid, it is indicated that one of the four positions fails to collect the information of the test strip 1, that is, the test strip 1 does not cover at least one position, and it is determined that the position of the test strip 1 at this time is improper, that is, the position of the test strip 1 in the test area is inclined.

More specifically, as shown in fig. 4, 5, 6 and 7, the test strip 1 obliquely includes:

the first position information is invalid, the second position information, the third position information and the fourth position information are valid at the same time, and one end of the test strip 1 close to the third position inclines rightwards;

the second position information is invalid, the first position information, the third position information and the fourth position information are valid at the same time, and one end of the test strip 1 close to the fourth position inclines rightwards;

the third position information and the fourth position information are not effective at the same time, and the inclination of the test strip 1 is larger than the width of the test strip 1.

In the test strip test position positioning method, the first position information is invalid to indicate that no test strip 1 is arranged at the first position, and the second position information, the third position information and the fourth position information are simultaneously valid to indicate that the test strip 1 is arranged at the second position, the third position and the fourth position, at the moment, the test strip 1 inclines, and one end, close to the third position, of the test strip 1 inclines rightwards; the second position information is invalid, the second position information shows that no test strip 1 is arranged at the second position, the first position information, the third position information and the fourth position information are simultaneously valid, the first position information, the third position information and the fourth position information show that the test strips 1 are arranged at the first position, the third position and the fourth position, at the moment, the test strips 1 are inclined, and one end of the test strips 1, which is close to the third position, is inclined to the right; the third position information and the fourth position information are not effective at the same time, which indicates that one of the third position and the fourth position does not detect the test strip 1, at the moment, the test strip 1 inclines to be larger than the width of the test strip 1, and the test strip 1 is directly conveyed to a waste paper box without testing.

Specifically, as shown in fig. 3, the method for locating the test position of the test strip further includes: the test strip 1 is continuously inclined for 6 times, and system failure is displayed.

In the test position positioning method of the test strip, when the test strip 1 is continuously inclined for 6 times, a system fault is displayed, which indicates that the urine dry chemical analyzer has the condition of inaccurate component alignment, and at the moment, instruments need to be adjusted, such as the tooth alignment of a conveying device of the test strip 1, and the like.

More specifically, as shown in fig. 3, the test strip 1 is tilted for 6 times continuously to display a system fault, and specifically includes: and determining whether the test strip 1 tilts twice continuously, adding one to a twice tilting counter, not tilting twice simultaneously, resetting the counter, and displaying that the test strip 1 tilts 6 times continuously and a system fails when the number of the counter is more than 5.

In addition, as shown in fig. 2, the present invention also provides a urine dry chemistry analyzer, which includes a strip transporting device 3 and a test head 2, wherein the strip transporting device 3 is used for transporting the test strip 1 to a detection area, and further includes four sensors 4 for determining the test position and the flatness of the test strip 1, wherein:

two sensors of the four sensors 4 are located at the rear edge of the standard test position of the test strip 1 along the X direction and along the length direction of the test strip 1, the first sensor 41 is located at the first position, the second sensor 42 is located at the second position, the other two sensors are located at the front edge of the standard test position of the test strip along the test strip conveying direction and along the length direction of the test strip 1, the third sensor 43 is located at the third position, and the fourth sensor 44 is located at the fourth position;

the test head 2 is arranged above the strip transporting device 3, is in signal connection with the strip transporting device 3 and the four sensors 4, and is used for determining validity of a position signal sent by each sensor and whether a test position is valid or not, sending a deceleration signal to the strip transporting device 3 when at least one of the first position information and the second position information is valid, sending a stop signal to the strip transporting device 3 when the third position information and the fourth position information are valid at the same time, determining that the test position of the test strip 1 is valid when the first position information, the second position information, the third position information and the fourth position information of the test strip 1 after transmission is stopped are valid at the same time, and determining that the test strip 1 inclines when at least one of the first position information, the second position information, the third position information and the fourth position information.

In the urine dry chemical analyzer, when positioning is performed, the strip transporting device 3 transports the test strip 1 to a test area, when the strip transporting device 3 transports the test strip 1 to a first position and a second position, the first sensor 41 located at the first position, and the second sensor 42 located at the second position collect first position information and second position information of the test strip 1 respectively, and transmit the first position information and the second position information to the test head 2, the test head 2 judges validity of the first position information and the second position information, when at least one of the first position information and the second position information is valid, the test head 2 transmits a deceleration signal to the strip transporting device 3, and the strip transporting device 3 decelerates the transmission speed of the test strip 1 according to the deceleration signal, and slowly continues to transport the test strip 1; then when the strip transporting device 3 transports the test strip 1 to a third position and a fourth position, the third sensor 43 located at the third position and the fourth sensor 44 located at the fourth position respectively collect information of the third position and information of the fourth position of the test strip 1, and transmit the information of the third position and the information of the fourth position to the test head 2, the test head 2 judges the validity of the signal of the third position and the signal of the fourth position, the test head 2 sends a stop signal to the strip transporting device 3 when the information of the third position and the information of the fourth position are simultaneously valid, the strip transporting device 3 stops the strip transporting device 3 according to the stop signal, and the transmission of the test strip 1 stops; and finally, after the test strip 1 is stopped from being transmitted, the four sensors 4 respectively collect the first position information, the second position information, the third position information and the fourth position information of the test strip 1 and transmit the four position information to the test head 2, the test head 2 judges the validity of the four position information, the test head 2 determines that the test position of the test strip 1 is valid when the first position information, the second position information, the third position information and the fourth position information are valid simultaneously, and the test head 2 determines that the test strip 1 inclines when at least one of the first position information, the second position information, the third position information and the fourth position information is invalid.

Above-mentioned dry chemical analysis appearance positioning process of urine is comparatively simple swift, is used for judging the position of test paper strip 1 through the test paper strip 1 positional information who gathers four positions, can be comparatively accurate test state to test paper strip 1, realizes the real-time accurate location of test paper strip 1.

In a preferred embodiment, the test head 2 comprises an analysis module and a display module, wherein:

the analysis module is in signal connection with the strip transporting device 3 and the four sensors 4 and is used for determining the validity of the position signal sent by each sensor and whether the test position is valid or not and controlling the transmission speed of the strip transporting device 3;

the display module is in signal connection with the analysis module and is used for displaying the state of the test strip 1 when receiving the display signal.

In the urine dry chemistry analyzer, during positioning, the analysis module judges the validity of the first position information and the second position information according to the first position information and the second position information of the test strip 1 respectively collected by the first sensor 41 at the first position and the second sensor 42 at the second position, when at least one of the first position information and the second position information is valid, namely when the test strip 1 passes through at least one sensor, the test head 2 sends a deceleration signal to the strip transporting device 3, the strip transporting device 3 reduces the transmission speed of the test strip 1 according to the deceleration signal, and slowly and continuously transports the test strip 1; then, according to the third sensor 43 located at the third position and the fourth sensor 44 located at the fourth position, the validity of the third position signal and the validity of the fourth position signal of the test strip 1 respectively collected by the third sensor 43 and the fourth sensor 44 located at the fourth position are judged, when the third position information and the fourth position information are simultaneously valid, the test head 2 sends a stop signal to the strip transporting device 3, the strip transporting device 3 stops the strip transporting device 3 according to the stop signal, and the transmission of the test strip 1 stops; and finally, after the test strip 1 is stopped from being transmitted, the analysis module judges the effectiveness of the four pieces of position information according to the first position information, the second position information, the third position information and the fourth position information of the test strip 1 respectively collected by the four sensors 4, the test head 2 determines that the test position of the test strip 1 is effective when the first position information, the second position information, the third position information and the fourth position information are effective simultaneously, the test head 2 determines that the test strip 1 inclines when at least one of the first position information, the second position information, the third position information and the fourth position information is ineffective, the analysis module transmits the effective test position or the inclined information of the test strip 1 to the display module, and the display module displays the state.

An operator determines whether the test strip 1 is inclined or not through a test position positioning method of the test strip 1 and displays that a test result of the test strip 1 is effective or a detection result is effective when the test result of the test strip 1 is inclined, the positioning and the detection can be directly performed by adopting the urine dry chemistry analyzer and the test position positioning method of the test strip 1, when the detection result is deviated when the test strip 1 is inclined, the operator is reminded that the detection result cannot be used, and the following urine dry chemistry analyzer needs to be started to detect the test strip by adopting the urine dry chemistry analyzer detection method.

After the validity of the first position information, the second position information, the third position information and the fourth position information of the test strip 1 after the conveying is stopped is determined by the test position positioning method of the test strip 1, the method further comprises the step of performing tracking detection by using a urine dry chemistry analyzer detection method, which specifically comprises the following steps:

as shown in fig. 8 and 9, the test strip conveying direction is set to be the X direction, and the direction perpendicular to the X direction is the Y direction, a test head 2 is used for testing a test strip 1 in a test area, and includes a rack, a probe 21 mounted on the rack, a first driving mechanism 22, a detector fixed on the probe 21, a second driving mechanism 23, two sets of photosensors 24, and a control mechanism for controlling the first driving mechanism 22 and the second driving mechanism 23, wherein:

each photoelectric sensor 24 is in signal connection with the control mechanism and is used for detecting whether the test strip 1 is arranged below the photoelectric sensor and sending a detection signal to the control mechanism, the two groups of photoelectric sensors 24 are arranged on the probe 21 and arranged along the front side and the rear side of the X direction, and the distance between projections in the X direction is not less than the width of the test strip 1;

the control mechanism is used for judging that the test strip 1 inclines and sending an action signal to the second driving mechanism 23 and the first driving mechanism 22 when receiving different detection signals sent by the two groups of photoelectric sensors 24, and judging that the test strip 1 does not incline and sending an action signal to the first driving mechanism 22 when the detection signals are the same;

the first driving mechanism 22 is in signal connection with the control mechanism and is used for driving the probe 21 to move along the Y direction when receiving an action signal sent by the control mechanism, and the detector on the probe 21 detects a plurality of reagent blocks on the test strip 1 one by one along the extension direction of the test strip 1;

the second driving mechanism 23 is in signal connection with the control mechanism and is used for driving the probe 21 to move along the direction parallel to the X direction when receiving the action signal sent by the control mechanism.

In the test head 2, when the test strip 1 is just conveyed into the test area, neither of the two groups of photoelectric sensors 24 detects the test strip 1, the control mechanism controls the first driving mechanism 22 to act, the first driving mechanism 22 drives the probe 21 to move towards the test strip 1 along the Y direction after receiving an action signal, and the detector on the probe 21 detects a plurality of reagent blocks on the test strip 1 one by one along the extension direction of the test strip 1; then, one of the two groups of photoelectric sensors 24 detects the test strip 1 and the other one does not detect the test strip 1, the control mechanism receives the detection signals sent by the two groups of photoelectric sensors 24 to judge that the test strip 1 inclines and sends an action signal to the second driving mechanism 23, the second driving mechanism 23 drives the probe 21 to move in the direction parallel to the X direction after receiving the action signal, the first driving mechanism 22 is in signal connection with the control mechanism and is used for driving the probe 21 to move in the Y direction when receiving the action signal sent by the control mechanism, the positions of the two photoelectric sensors 24 and the probe 21 in the conveying direction of the test strip 1 are adjusted, the first driving mechanism 22 and the second driving mechanism 23 move synchronously, so that the probe 21 generates a motion track consistent with the extending direction of the test strip 1, and the detector on the probe 21 moves along the extending direction of the test strip 1, When two photoelectric sensors 24 detect the test strip 1, the probes 21 face the test strip 1 below the probes 21, so that the projections of the probes 21 on the plane of the test strip 1 cover the test strip 1 to the maximum extent, and the probes 21 can scan the test strip 1 accurately, and because the two groups of photoelectric sensors 24 are installed on the front and back sides of the probes 21 along the X direction, and the distance between the projections in the X direction is not less than the width of the test strip 1, the photoelectric sensors 24 are accurately positioned on the front and back edges of the test strip 1 along the transmission direction, so that the detectors can receive the reflected light of the test strip 1 to a large extent, so that most of the optical signals analyzed by the detectors come from the test strip 1, and the test head 2 ensures the detection accuracy.

Therefore, the test head 2 can accurately scan the test strip 1, and the detection precision is improved.

As shown in fig. 8 and 9, in one preferred embodiment, the first drive mechanism 22 includes:

a first guide rail 221 fixed to the rack, wherein the extending direction of the first guide rail 221 is perpendicular to the conveying direction of the test strip 1;

a first slider 222 fixed to the probe 21, the first slider 222 being slidably fitted to the first guide rail 221;

and the first driving piece is arranged on the rack, is in signal connection with the control mechanism and is in transmission connection with the first sliding block 222.

In the whole scanning detection process of the test head 2, the control mechanism controls the first driving mechanism 22 to operate all the time, the first driving mechanism 22 drives the probe 21 to move all the time along the Y direction after receiving the operation signal, and the driving process of the first driving mechanism 22 is as follows: the first driving member receives an action signal sent by the control mechanism and then acts to drive the first slider 222 in transmission connection with the first driving member to move, and the first slider 222 slides in the first guide rail 221 in sliding fit with the first slider 222 to drive the probe 21 fixed on the first driving member to move along the extending direction of the first guide rail 221 fixed on the rack, that is, the probe 21 moves along the direction perpendicular to the conveying direction of the test strip 1 under the action of the first driving mechanism 22.

On the basis of the test head 2 described above, in order to achieve movement of the probe 21 in a direction parallel to the X direction while ensuring controllability of the movement, as shown in fig. 8, specifically, the second driving mechanism 23 includes:

a second guide rail 231 mounted on the rack, wherein the extension direction of the second guide rail 231 is parallel to the conveying direction of the test strip 1;

a second slider 232 fixed to the first rail 221, the second slider 232 being slidably fitted to the second rail 231;

and the second driving piece is arranged on the rack, is in signal connection with the control mechanism and is in transmission connection with the second sliding block 232.

In the above-mentioned test head 2, when one of the two sets of photosensors 24 detects the test strip 1 and the other one does not detect the test strip 1, the control mechanism receives a difference of the detection signals sent by the two sets of photosensors 24, the control mechanism controls the second driving mechanism 23 to start to operate, the second driving member receives the operation signal sent by the control mechanism and then operates to drive the second slider 232 in transmission connection therewith to move, the second slider 232 slides in the second guide rail 231 in sliding fit therewith to drive the first guide rail 221 fixed thereon to move along the extending direction of the second guide rail 231 fixed on the rack, that is, the first guide rail 221 moves along the direction parallel to the conveying direction of the test strip 1 under the action of the second driving mechanism 23, so as to adjust the positions of the two photosensors 24 and the probe 21 relative to the test strip 1 in the conveying direction, wherein, when only the photoelectric sensor 24 located at the rear side of the probe 21 in the X direction detects the test strip 1, the second driving mechanism 23 drives the probe 21 to move in the reverse direction of the X direction; when only the photoelectric sensor 24 located on the front side of the probe 21 in the X direction detects the test strip 1, the second driving mechanism 23 drives the probe 21 to move in the X direction; when the two photoelectric sensors 24 detect the test strip 1, the probe 21 faces the test strip 1 therebelow, so that the projection of the probe 21 on the plane of the test strip 1 is ensured to cover the test strip 1 to the maximum extent, and the probe 21 can accurately scan the test strip 1.

More specifically, the second drive may be a servo motor, and/or the first drive may be a servo motor.

In the test head 2, since the servo motor can realize accurate control, and meanwhile, the sliding fit between the first guide rail 221 and the first slider 222, and between the second guide rail 231 and the second slider 232 can realize local accurate adjustment of the probe 21 in the conveying direction perpendicular to the test strip 1 and in the conveying direction parallel to the test strip 1.

The second driving member and the second driving member are constructed in the following three ways,

in the first mode, the second driving part is a servo motor, and the first driving part is a servo motor;

in the second mode, the second driving part is a servo motor, and the first driving part is in other structural forms;

in a third mode, the second driving part is in other structural forms, and the first driving part is a servo motor.

The first driving part and the second driving part can be servo motors and can also be in other structural forms capable of meeting driving requirements, and the specific structural forms of the first driving part and the second driving part are selected according to the actual situation of the test head 2.

In order to ensure that the photosensors 24 are accurately positioned to the front and rear edges of the test strip 1 in its transport direction, in a preferred embodiment, the distance between the projections of the two sets of photosensors 24 in the X direction may be equal to the width of the test strip 1.

In the above-mentioned test head 2, the distance between the projections of the two sets of photosensors 24 in the X direction may be equal to the width of the test strip 1, the distance between the projections of the two sets of photosensors 24 in the X direction may be slightly greater than the width of the test strip 1, and since the two sets of photosensors 24 are mounted on the front and rear sides of the probe 21 in the X direction, the photosensors 24 are precisely positioned at the front and rear edges of the test strip 1 in the conveying direction, and the control mechanism controls the detector to operate after receiving the signals of the test strip 1 detected by the two sets of photosensors 24, at this time, the two sets of photosensors 24 respectively coincide with the front and rear edges of the test strip 1 in the conveying direction, so that the probe 21 can scan the test strip 1 to the maximum extent, and at the same time, the detector can receive the reflected light of the test strip 1 to the maximum extent, so as, the detection precision is ensured.

In particular, each set of photosensors 24 may include at least one reflective photosensor 24.

In the above-mentioned test head 2, since the reflective photoelectric sensors have the characteristics of simple and convenient installation and wiring, convenient alignment of light paths during installation and use, no influence by the shape, color and material of the detected object, installation and use space saving, etc., the detection accuracy can be ensured, each group of the photoelectric sensors 24 may include one reflective photoelectric sensor or a plurality of reflective photoelectric sensors, the photoelectric sensors 24 may be reflective photoelectric sensors or other structural forms, and the specific structure and number of each group of the photoelectric sensors 24 are selected according to the actual situation of the test head 2.

In order to ensure the accurate driving of the first driving mechanism 22, in a preferred embodiment, the test head 2 further includes a displacement sensor, the displacement sensor is disposed at the edge of the detection area, and is in signal connection with the control module, and is configured to detect whether the test strip 1 passes through and send a position signal to the control mechanism, and the control mechanism controls the first driving mechanism 22 to operate according to the received position signal.

In above-mentioned test head 2, when test strip 1 just entered into the test area, because displacement sensor sets up the edge in the detection area, at this moment, displacement sensor obtains test strip 1 passing signal and transmits the position signal of test strip 1 to control module, control module is according to the action of the first actuating mechanism 22 of received position signal control, first actuating mechanism 22 begins to move towards test strip 1 along the Y direction from initial position, in order to guarantee that probe 21 is located its top when test strip 1 conveys the test area, then carry out the accurate positioning of probe 21 for test strip 1 position again, this positioning process is comparatively simple quick and accurate, the efficiency of software testing and the precision of test head 2 have been improved.

In addition, as shown in fig. 8, the invention also provides a urine dry chemistry analyzer, which comprises a strip transporting device 3 for transporting a test strip 1 to a detection area, and a test head 2 according to any one of the above technical solutions, wherein the test head 2 is arranged above the strip transporting device 3, and the strip transporting device 3 is in signal connection with a control mechanism.

In the dry chemical analysis appearance of above-mentioned urine, fortune strip device 3 conveys test paper strip 1 to detection area, and the test head 2 that sets up in fortune strip device 3's top detects test paper strip 1 in the detection area, because test head 2 can the accurate scanning test paper strip 1, improves and detects the precision, consequently, the dry chemical analysis appearance's of urine that has this test head 2 detection analysis result precision is higher, and the reliability is better.

as shown in fig. 10 and fig. 11, the present invention further provides a detection method of the urine dry chemistry analyzer according to the above technical solution, including:

step S1001, starting a first driving mechanism 22, wherein the first driving mechanism 22 drives a probe 21 to move along a Y direction according to a preset step number, and a detector on the probe 21 detects a plurality of reagent blocks on the test strip 1 in a detection area one by one along the extension direction of the test strip 1;

step S1002, before the set number of steps is finished, the control mechanism determines whether the test strip 1 is inclined, and each determination process of the control mechanism includes:

the two groups of photoelectric sensors 24 detect the test strip 1 in the detection area and send detection signals to the control mechanism;

when the control mechanism receives different detection signals sent by the two groups of photoelectric sensors 24, the control mechanism judges that the test strip 1 inclines and sends action signals to the second driving mechanism 23 and the first driving mechanism 22, the second driving mechanism 23 drives the probe 21 to move along the direction parallel to the X direction according to the received action signals, and the first driving mechanism 22 drives the probe 21 to move along the direction perpendicular to the test strip conveying direction according to the received action signals, so that the motion track of the probe 21 is consistent with the extending direction of the test strip 1;

when the control mechanism receives the detection signals sent by the two groups of photoelectric sensors 24 to be the same, the control mechanism judges that the test strip 1 is not inclined and sends an action signal to the first driving mechanism 22, and the first driving mechanism 22 drives the probe 21 to move along the Y direction according to the received action signal, so that the probe 21 keeps moving along the direction perpendicular to the X direction until the detection of all reagent blocks on the test strip 1 is completed.

In the detection method of the urine dry chemistry analyzer, in step S1001, the first driving mechanism 22 drives the probe 21 to move to the position of the test strip 1 to be detected, and the detector on the probe 21 detects a plurality of reagent blocks on the test strip 1 in the detection area one by one along the extending direction of the test strip 1 along with the movement of the probe 21, then in step S1002, the control mechanism controls the second driving mechanism 23 and the first driving mechanism 22 to operate according to the test strip 1 information detected by the two sets of photosensors 24 so as to drive the probe 21 to adjust the position of the probe relative to the test strip 1, when one set of photosensors 24 in the two sets of photosensors 24 does not detect the test strip 1, it indicates that the position of the probe 21 relative to the test strip 1 needs to be adjusted at this time, and the control mechanism receives different detection signals sent by the two sets of photosensors 24 at this time, the control mechanism judges that the test strip 1 inclines and controls the second driving mechanism 23 and the first driving mechanism 22 to act so as to track the test strip 1, at this time, the second driving mechanism 23 drives the probe 21 to move along the direction parallel to the X direction after receiving the action signal, the first driving mechanism 22 is in signal connection with the control mechanism and is used for driving the probe 21 to move along the Y direction when receiving the action signal sent by the control mechanism, the positions of the two photoelectric sensors 24 and the probe 21 relative to the test strip 1 in the transmission direction are adjusted, the first driving mechanism 22 and the second driving mechanism 23 synchronously move so that the probe 21 generates a movement track consistent with the extension direction of the test strip 1, the detector on the probe 21 detects a plurality of reagent blocks on the test strip 1 one by one along the extension direction of the test strip 1, when the test strip 1 is detected by the two groups of photoelectric sensors 24, the position of the probe 21 relative to the test strip 1 is relatively good, the projection of the probe 21 on the plane where the test strip 1 is located can cover the test strip 1 to a large extent, at this time, the detection signals sent by the two sets of photosensors 24 received by the control mechanism are the same, it is determined that the test strip 1 is not tilted, and an action signal is sent to the first driving mechanism 22, then the first driving mechanism 22 continues to drive the probe 21 to move along the Y direction, so that the probe 21 keeps moving along the direction perpendicular to the X direction until the detection of all reagent blocks on the test strip 1 is completed, at this time, the probe 21 can accurately scan the test strip 1, it is ensured that the detector can receive the reflected light of the test strip 1 to a large extent, it is ensured that most of the optical signals analyzed by the detector come from the test strip 1, and the detection accuracy is ensured, the above-mentioned detection method can simply realize the accurate positioning of the probe 21 and the test strip 1 by controlling the, to ensure the accuracy of the detection.

Therefore, the detection method of the urine dry chemical analyzer is simple and has high accuracy.

In order to ensure the accuracy of the detection, in a preferred embodiment, when the urine dry chemistry analyzer comprises a displacement sensor, the detection method further comprises: the displacement sensor detects whether the test strip 1 is conveyed to the detection area, the control mechanism sends a transmission instruction to the strip conveying device 3 after receiving a signal which is sent by the displacement sensor and does not convey the test strip 1 to the detection area, and the strip conveying device 3 conveys the test strip 1 to the detection area according to the transmission instruction.

In the detection method of the urine dry chemical analyzer, the displacement sensor detects whether the test strip 1 is conveyed to the detection area, the displacement sensor sends a signal that no test strip 1 is conveyed to the detection area to the control mechanism when the test strip 1 is not conveyed to the detection area, the control mechanism sends a transmission instruction to the strip conveying device 3 according to the signal, the strip conveying device 3 acts according to the transmission instruction to convey the test strip 1,

when the test strip 1 just enters the test area, the displacement sensor is arranged at the edge of the test area, at the moment, the displacement sensor obtains a passing signal of the test strip 1 and transmits the position signal of the test strip 1 to the control module, the control module controls the first driving mechanism 22 to act according to the received position signal, the first driving mechanism 22 starts to move towards the test strip 1 along the Y direction from the initial position, and the detection of the detector is started.

As shown in fig. 10, in a preferred embodiment, the control mechanism determines that the test strip 1 is tilted when the detection signals sent by the two sets of photosensors 24 are different, and sends an action signal to the second driving mechanism 23, and the second driving mechanism 23 drives the probe 21 to move in the direction parallel to the X direction according to the received action signal, and specifically includes:

when only the photoelectric sensor 24 located at the rear side of the probe 21 in the X direction detects the test strip 1, the second driving mechanism 23 drives the probe 21 to move in the reverse direction in the X direction;

when only the photosensor 24 located on the front side of the probe 21 in the X direction detects the strip 1, the second drive mechanism 23 drives the probe 21 to move in the X direction.

Specifically, the control mechanism determines that the test strip 1 is not tilted when receiving that the detection signals sent by the two sets of photosensors 24 are the same, and sends an action signal to the first driving mechanism 22, and the first driving mechanism 22 drives the probe 21 to move in the Y direction according to the received action signal, specifically including:

when the two groups of photoelectric sensors 24 do not detect the test strip 1, a no-test-strip signal is sent to the control mechanism, and the control mechanism controls the first driving mechanism 22 to drive the probe 21 to continuously move towards the test strip 1 in the detection area along the direction perpendicular to the X direction;

when the two groups of photoelectric sensors 24 detect the test strip 1, a signal of the test strip 1 is sent to the control mechanism, and the control mechanism controls the first driving mechanism 22 to drive the probe 21 to move along the direction perpendicular to the X direction; and sends an operation stop signal to the second drive mechanism 23.

In the above-mentioned detection method of the urine dry chemistry analyzer, since the specific state of the strip 1 is unknown when the strip 1 is transferred to the test area by the transfer means, therefore, two sets of photoelectric sensors 24 are used to position the test strip 1 to adjust the position of the probe 21 relative to the test strip 1, in the position adjustment process, the photosensor 24A is located on the rear side of the probe 21 in the X direction, the photosensor 24B is located on the front side of the probe 21 in the X direction, when neither the photoelectric sensor 24A nor the photoelectric sensor 24B detects the test strip 1, it indicates that the probe 21 does not move to the detection area of the test strip 1, at this time, the control mechanism controls the first driving mechanism 22 to drive the probe 21 to continue to move along the direction perpendicular to the X direction toward the test strip 1 in the detection area, and the second driving mechanism 23 does not receive the action signal of the control mechanism and remains motionless; the first driving mechanism 22 continues to drive the probe 21 to move in the Y direction, and when the photoelectric sensor 24A detects the test strip 1, when the photoelectric sensor 24B does not detect the test strip 1, indicating that the test strip 1 is not in the detection range of the photoelectric sensor 24B, the probe 21 is located at a position ahead of the test strip 1, the second driving mechanism 23 drives the probe 21 to move in the direction opposite to the X direction, the first driving mechanism 22 drives the probe 21 to move in the direction Y, so that the probe 21 and the photoelectric sensor 24B move backwards, to shorten the distance between the photosensor 24B and the strip 1, the first driving mechanism 22 and the second driving mechanism 23 move synchronously, so that the probe 21 generates a motion track consistent with the extending direction of the test strip 1, and the detector on the probe 21 detects a plurality of reagent blocks on the test strip 1 one by one along the extending direction of the test strip 1; when the photoelectric sensor 24A does not detect the test strip 1 and the photoelectric sensor 24B detects the test strip 1, it indicates that the test strip 1 is not in the detection range of the photoelectric sensor 24A, the probe 21 is located at a position behind the test strip 1, the second driving mechanism 23 drives the probe 21 to move along the X direction, the first driving mechanism 22 drives the probe 21 to move along the Y direction, so that the probe 21 and the photoelectric sensor 24A move forward to shorten the distance between the photoelectric sensor 24A and the test strip 1, the first driving mechanism 22 and the second driving mechanism 23 move synchronously to make the probe 21 generate a motion track consistent with the extension direction of the test strip 1, and the detector on the probe 21 detects a plurality of reagent blocks on the test strip 1 one by one along the extension direction of the test strip 1; when two groups of photoelectric sensors 24 detect the test strip 1, the probe 21 completes tracking relative to the test strip 1, the control mechanism controls the first driving mechanism 22 to drive the probe 21 to move along the Y direction and stop a signal to the second driving mechanism 23, the second driving mechanism 23 stops moving, the probe 21 moves along the Y direction, the detector on the probe 21 is driven to detect a plurality of reagent blocks on the test strip 1 one by one along the extending direction of the test strip 1, the position adjustment process is simple, rapid and accurate, and the test efficiency and the precision of the test head 2 are improved.

In a preferred embodiment, when each set of photo sensors 24 includes at least one reflective photo sensor, the detection signal is a reflection signal, the control mechanism determines that the test strip 1 is tilted when receiving one reflection signal, and the control mechanism determines that the test strip 1 is not tilted when not receiving the reflection signal.

In the detection method of the urine dry chemical analyzer, in step S1002, the reflective photoelectric sensor detects the test strip 1 in the detection area through reflection of light, the reflective photoelectric sensor receives and transmits a reflection signal, the control mechanism receives detection signals of the two sets of photoelectric sensors 24, determines that the test strip 1 is inclined when receiving one reflection signal, and determines that the test strip 1 is not inclined when not receiving the reflection signal.

It will be apparent to those skilled in the art that various changes and modifications may be made in the embodiments of the present invention without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.

Claims

1. A test position positioning method of a test strip is characterized by comprising the following steps:

2. The method of claim 1, wherein the determining the validity of the first position information and the second position information of the test strip and the reducing the test strip transmission speed when at least one of the first position information and the second position information is valid, specifically comprises: collecting first position information and second position information; determining validity of the first location information and the second location information; and when at least one of the first position information and the second position information is effective, the strip-transporting device is controlled to slow down and continue to transport the test strips.

3. The method of claim 1, wherein the determining the validity of the third position information and the fourth position information of the test strip, and stopping the test strip from being transmitted and starting the test when the third position information and the fourth position information are both valid, specifically comprises: collecting third position information and fourth position information; determining validity of the third location information and the fourth location information; and when the third position information and the fourth position information are simultaneously effective, controlling the bar transporting device to stop and starting the test head to start testing.

4. The method for locating the test position of the test strip according to claim 1, wherein the determining the validity of the first position information, the second position information, the third position information and the fourth position information of the test strip after the transmission is stopped, and determining and displaying that the test result of the test strip is valid when the first position information, the second position information, the third position information and the fourth position information are valid at the same time specifically comprises: collecting first position information, second position information, third position information and fourth position information after the test strip stops moving; determining validity of the first position information, the second position information, the third position information and the fourth position information; and when the first position information, the second position information, the third position information and the fourth position information are effective at the same time, determining that the test result of the test strip is effective, and displaying the test data and the test effective information.

5. The method of claim 4, wherein determining and displaying the test strip tilt when at least one of the first position information, the second position information, the third position information, and the fourth position information is invalid comprises: and determining the inclination of the test strip when at least one of the first position information, the second position information, the third position information and the fourth position information is invalid, and displaying the inclination of the test strip or testing valid information.

6. The method of claim 5, wherein the tilting of the strip comprises:

7. The method of claim 6, further comprising: the test paper strip is continuously inclined for 6 times, and system failure is displayed.

8. The method for locating the test position of the test strip according to claim 7, wherein the test strip is tilted for 6 times continuously, and a system fault is displayed, and the method specifically comprises the following steps: and determining whether the test strip tilts twice continuously, adding one to a twice tilting counter, not tilting twice simultaneously, resetting the counter, and displaying that the test strip tilts 6 times continuously and a system fails when the number of the counter is more than 5.

9. A urine dry chemistry analyzer comprises a strip conveying device and a test head, wherein the strip conveying device is used for conveying a test strip to a detection area, and the urine dry chemistry analyzer is characterized by further comprising four sensors for determining the test position and the flatness of the test strip, wherein:

the test head is arranged above the strip transporting device, is in signal connection with the strip transporting device and the four sensors, and is used for determining validity of a position signal sent by each sensor and whether a test position is valid, sending a deceleration signal to the strip transporting device when at least one of first position information and second position information is valid, sending a stop signal to the strip transporting device and starting testing when third position information and fourth position information are valid at the same time, determining and displaying that a test result of the test strip is valid when the first position information, the second position information, the third position information and the fourth position information of the test strip after transmission is stopped are valid at the same time, and determining and displaying that the test strip is inclined when at least one of the first position information, the second position information, the third position information and the fourth position information is invalid.

10. The dry chemistry urine analyzer of claim 9, wherein the test head comprises an analysis module and a display module, wherein: