CN111820899B - Sensor calibration equipment - Google Patents

Abstract

The invention discloses a sensor calibration device, which includes a rod body and a plate-shaped structure. The rod bodies are pivotally connected to each other, and each plate-shaped structure has a first side, a second side and a third side adjacent to the first side. The first sides of the plate-like structures are respectively pivotally connected to the rod body, and the second side of one of the two adjacent plate-like structures and the third side of the other are pivotally connected to each other. When a force in the first direction or the second direction is applied to one of the rod body and the plate-like structure, the rod body and the plate-like structure unfold in the first direction or fold in the second direction. The sensor calibration device of the present invention allows users to easily and stably unfold or fold the sensor calibration device to change the overall height according to actual needs, which helps to improve the convenience of sensor calibration of body scanners. In addition, the sensor calibration device can be folded efficiently, thus saving storage space.

Description

Sensor calibration equipment

Technical field

The present invention relates to a sensor calibration device, and in particular to a sensor calibration device for a human body scanner.

Background technique

As stereoscopic scanning technology continues to develop, how to accurately sense the distribution of three-dimensional objects in space has become more important. For example, body scanners can perform three-dimensional scans of human body dimensions. In order to ensure the accuracy of the body scanner, the sensor of the body scanner needs to be calibrated to ensure that the body scanner can accurately perform body scanning.

Contents of the invention

The object of the present invention is to provide a sensor calibration device that can be effectively folded to save storage space.

According to some embodiments of the present invention, a sensor calibration device includes a rod body and a plate-like structure. The rod bodies are pivotally connected to each other, and each plate-shaped structure has a first side, a second side and a third side adjacent to the first side. The first sides of the plate-like structures are respectively pivotally connected to the rod body, and the second side of one of the two adjacent plate-like structures and the third side of the other are pivotally connected to each other. When a force in the first direction or the second direction is applied to one of the rod body and the plate-like structure, the rod body and the plate-like structure unfold in the first direction or fold in the second direction.

In some embodiments of the present invention, two ends of each rod body have extension parts, and the two extension parts of two adjacent rod bodies are opposite to each other. The sensor calibration device further includes a first rotating shaft passing through the adjacent two ends of the rod body. Two extensions for two.

In some embodiments of the present invention, each plate-like structure has an extension part, and the two extension parts of two adjacent plate-like structures are opposite to each other, and the sensor calibration device further includes a second rotating shaft passing through the plate-like structure. Two extensions of two adjacent ones.

In some embodiments of the present invention, when the plate-like structures are unfolded, the first side of one of the plate-like structures is staggered with the corresponding rod body pivotally connected to the plate-like structure.

In some embodiments of the invention, when the plate-like structure is folded, the first side of the plate-like structure is substantially parallel to the rod body.

In some embodiments of the present invention, when the plate-like structures are unfolded or folded, the rotation direction of each plate-like structure is opposite to that of the corresponding rod body.

In some embodiments of the invention, the distance between the second side of each plate-like structure and the third side of an adjacent other is approximately equal.

In some embodiments of the present invention, each rod body has a first end and a second end opposite to each other, and the distance between the first end of each rod body and the second end of the adjacent other rod body is approximately equal.

In some embodiments of the present invention, the sensor calibration device further includes a marking structure extending from one of the rod body or the plate-like structure to provide dimensional information.

In some embodiments of the present invention, the sensor calibration device further includes a marking pattern located on one of the plurality of plate-like structures to provide dimensional information.

In the above-mentioned embodiments of the present invention, since the user can easily and firmly unfold or fold the sensor calibration device to change the overall height according to actual needs, it helps to improve the convenience of sensor calibration of the body scanner. In addition, the sensor calibration device can be folded efficiently, thus saving storage space.

Description of drawings

FIG. 1 is a perspective view of a sensor calibration device used for calibration according to some embodiments of the present invention.

FIG. 2 is a partial enlarged view of the sensor calibration device of FIG. 1 when unfolded.

FIG. 3 is a partial enlarged view of the sensor calibration device of FIG. 1 when partially folded.

Figure 4 is a partial enlarged view of two adjacent rod bodies in Figure 1.

FIG. 5 is a partial enlarged view of two adjacent plate-like structures in FIG. 1 .

FIG. 6 is a partial side view of the sensor calibration device of FIG. 1 .

FIG. 7 is a perspective view of the sensor calibration device of FIG. 1 when folded.

Figure 8 is a perspective view of a sensor calibration device according to some embodiments of the present invention.

Figure 9 is a schematic diagram of a sensor calibration device stored in a box according to some embodiments of the present invention.

Figure 10 is a schematic diagram of a sensor calibration device hanging upside down from the ceiling according to some embodiments of the present invention.

Figure 11 is a perspective view of a sensor calibration device according to some embodiments of the present invention.

Detailed ways

The following will disclose multiple embodiments of the present invention in the accompanying drawings. For the sake of clarity, many practical details will be explained in the following description. However, it will be understood that these practical details should not limit the invention. That is to say, in some embodiments of the present invention, these practical details are not necessary. In addition, for the purpose of simplifying the drawings, some well-known and conventional structures and components are illustrated in a simple schematic manner in the drawings. Also, the thicknesses of layers and regions in the figures may be exaggerated for clarity, and like reference numerals refer to like elements in the description of the figures.

FIG. 1 is a perspective view of a sensor calibration device 100 used for calibration according to some embodiments of the present invention. The sensor calibration device 100 includes a rod body 110 and a plate-like structure 120 . In this embodiment, the sensor calibration device 100 is used to calibrate the sensor 210 of the body scanner 200 . When performing calibration of the body scanner 200, the user can unfold the sensor calibration device 100 to a required height and start the body scanner 200. The sensor 210 of the body scanner 200 can detect the plate structure 120 placed in front to obtain depth information, and calibrate the sensor 210 through a computing device (not shown). The process is convenient and simple.

FIG. 2 is a partial enlarged view of the sensor calibration device 100 of FIG. 1 when unfolded. FIG. 3 is a partial enlarged view of the sensor calibration device 100 of FIG. 1 when partially folded. The plate structure 120 has a first side 121 and a second side 122 and a third side 123 adjacent to the first side 121 . Two adjacent rod bodies 110 are pivotally connected to each other, and the second side 122 of one of the two adjacent plate-like structures 120 and the third side 123 of the other two adjacent plate-like structures 120 are pivotally connected to each other. The first sides 121 of the plate-like structures 120 are respectively pivotally connected to the rod bodies 110 .

In this embodiment, the plate-like structure 120 is rectangular and has a fourth side 124 opposite to the first side 121 . The two rods 110 are juxtaposed (that is, substantially parallel) and pivotally connected to the first side 121 and the fourth side 124 of the plate-like structure 120 , but the invention is not limited thereto. In some embodiments, the plate-like structure 120 is of any shape, the first side 121 is an edge or outer frame of the plate-like structure 120 close to the rod body 110 , and the fourth side 124 may be an edge or outer frame close to another rod body 110 . In addition, the second side 122 of the plate-like structure 120 is adjacent to the third side 123 of another plate-like structure 120, that is, the two edges or outer frames adjacent to each other when the plate-like structures 120 are arranged in sequence.

As shown in FIG. 1 , in this embodiment, the rod body 110 and the plate-like structure 120 of the sensor calibration device 100 have fixed ends 102 , which are slidably fixed to the ground of the body scanner 200 . Please refer to FIG. 1 , FIG. 2 and FIG. 3 at the same time. When the rod 110 or the plate-like structure 120 is exerted a force along the first direction D1 (that is, the direction away from the fixed end 102 ), the sensor calibration device 100 moves toward The first direction D1 is expanded. When the rod 110 or the plate structure 120 is exerted a force along the second direction D2 (that is, toward the fixed end 102 ), the sensor calibration device 100 is folded in the second direction D2 . That is to say, the sensor calibration device 100 can be unfolded from the state shown in FIG. 3 along the first direction D1 to the state shown in FIG. 2 , and can also be folded from the state shown in FIG. 2 along the second direction D2 to the state shown in FIG. 2 . The state shown in Figure 3, and the second direction D2 is essentially the opposite direction of the first direction D1.

FIG. 4 is a partial enlarged view of two adjacent rod bodies 110 in FIG. 1 . As shown in the figure, the upper and lower rods 110 are adjacent and each has a first end 112 and a second end 114 . The first end 112 and the second end 114 each have an extension 116 . The extension portion 116 of the first end 112 of the upper rod body 110 is opposite to the extension portion 116 of the second end 114 of the lower rod body 110 .

In some embodiments, the sensor calibration device 100 also has a first rotation axis 130 . The two opposite extending portions 116 are pivotally connected to each other through the first rotating shaft 130 . Specifically, in some embodiments, two opposite extending portions 116 have perforations aligned with each other, and the first rotating shaft 130 passes through the two perforations. In this way, the upper rod body 110 and the lower rod body 110 can rotate relative to each other using the first rotating shaft 130 as the axis. In addition, the second end 114 of the upper rod body 110 also has the same extension portion 116, and the first end 112 of the lower rod body 110 also has the same extension portion 116, and are pivoted to each other in the same manner with the other adjacent rod body 110. catch.

In this embodiment, when the user unfolds or folds the sensor calibration device 100, the upper rod body 110 and the lower rod body 110 rotate in opposite directions with the first rotation axis 130 as the axis. For example, as shown in FIG. 4 , when the user unfolds the sensor calibration device 100 , the lower rod 110 rotates in the clockwise direction C1 and the upper rod 110 rotates in the counterclockwise direction C2 .

FIG. 5 is a partial enlarged view of two adjacent plate structures 120 in FIG. 1 . As shown in the figure, the upper and lower plate-shaped structures 120 are adjacent and each has an extending portion 126 . The third side 123 of the upper plate-like structure 120 is opposite to the second side 122 of the lower plate-like structure 120 .

In some embodiments, the sensor calibration device 100 also has a second rotation axis 140 . The extending portion 126 of the upper plate-like structure 120 is opposite to the extending portion 126 of the lower plate-like structure 120 and is pivotally connected to each other through the second rotating shaft 140 . Specifically, in some embodiments, the two opposite extension parts 126 have perforations aligned with each other, and the second rotating shaft 140 passes through the perforations of the two opposite extension parts 126 . In this way, the upper plate-shaped structure 120 and the lower plate-shaped structure 120 can relatively rotate about the second rotating shaft 140 as the axis. In addition, the second side 122 of the upper plate-like structure 120 also has the same extending portion 126, and the third side 123 of the lower plate-like structure 120 also has the same extending portion 126, and are respectively connected with another adjacent plate-like structure. 120 are pivoted to each other in the same manner.

When the user unfolds or folds the sensor calibration device 100, the two adjacent plate structures 120 rotate in opposite directions with the second rotation axis 140 as the axis. For example, as shown in FIG. 5 , when the user unfolds the sensor calibration device 100 , the upper plate-like structure 120 rotates in the clockwise direction C1 and the lower plate-like structure 120 rotates in the counterclockwise direction C2 .

In this embodiment, the plate-like structure 120 is a flat surface. In other embodiments, the plate-like structure 120 may also be a curved surface. In this embodiment, the plate-like structure 120 has four extending portions 126 . The extension portion 126 is located at the corner formed by two adjacent sides of the plate-like structure 120, but the invention is not limited thereto. The extension portion 126 can extend from the second side 122 and the third side 123 of the plate-like structure 120 , and can also extend from the first side 121 and the fourth side 124 of the plate-like structure 120 , which is not intended to limit the present invention. . For example, the extension portion 126 of the upper plate-like structure 120 can be located at any position on the second side 122, and the extension portion 126 of the lower plate-like structure 120 can be located at a corresponding position on the third side 123, as long as both sides can be connected. Adjacent plate structures 120 can rotate relative to each other.

FIG. 6 is a partial side view of the sensor calibration apparatus 100 of FIG. 1 . In this embodiment, the rod body 110 and the plate-like structure 120 are pivotally connected through a third rotating shaft 150 , and the third rotating shaft 150 passes through the center of the rod body 110 and the center of the first side 121 of the plate-like structure 120 . The rod body 110 is arranged in a zigzag shape, and the first side 121 of the plate-like structure 120 coupled with the rod body 110 is arranged in a zigzag shape opposite to the rod body 110 .

The sensor calibration device 100 has a plurality of sets of rods 110 and plate structures 120 coupled to each other. Taking the upper rod body 110 and the plate-like structure 120 in FIG. 6 as an example, the rod body 110 is staggered with the first side 121 of the corresponding coupled plate-like structure 120 . In other words, in this embodiment, the plate-like structure 120 is rectangular, and the long axis of the rod 110 intersects with the extending direction of the first side 121 of the corresponding coupled plate-like structure 120 . The lower rod body 110 and the first side 121 of the plate-like structure 120 in Figure 6 have fixed ends 102 slidably fixed to the ground. When the user folds the sensor calibration device 100 along the second direction D2, the upper rod 110 rotates in the counterclockwise direction C2 with the upper third rotation axis 150 as the axis, and the upper plate-like structure 120 rotates with the upper third rotation axis 150 as the axis. The rotating shaft 150 is the axis and rotates in the clockwise direction C1. That is to say, the long axis of the rod body 110 is opposite to the rotation direction of the first side 121 of the corresponding coupled plate structure 120 .

In addition, since the rod body 110 and the plate-like structure 120 (shown as the first side 121 in the figure) are arranged in opposite directions, when the user folds the sensor calibration device 100 along the second direction D2, the lower rod body 110 The lower third rotating shaft 150 is used as an axis to rotate in the clockwise direction C1, and the lower plate-shaped structure 120 is used to use the lower third rotating shaft 150 as an axis to rotate in the counterclockwise direction C2.

According to the above, when the user folds the sensor calibration device 100, the first rotating shaft 130 that pivots the two rod bodies 110 and the second rotating shaft 140 that pivots the two plate-like structures 120 are substantially perpendicular to the second direction D2. They are far away from each other in the third direction D3, while the upper and lower third rotating shafts 150 are close to each other in the second direction D2. In addition, as shown in FIG. 3 , the first rotating shafts 130 arranged along the first direction D1 or the second direction D2 are close to each other in the second direction D2, and the second rotating shafts 130 arranged along the first direction D1 or the second direction D2 are close to each other. The rotating shafts 140 are also close to each other in the second direction D2.

On the contrary, when the user unfolds the sensor calibration device 100, the first rotating shaft 130 that pivots the two rod bodies 110 and the second rotating shaft 140 that pivots the two plate-like structures 120 are close to each other in the third direction D3, and upward The third rotating shaft 150 and the third rotating shaft 150 below are away from each other in the second direction D2. In addition, as shown in FIG. 2 , the first rotating shafts 130 arranged along the first direction D1 or the second direction D2 are away from each other in the second direction D2, and the second rotating shafts 130 arranged along the first direction D1 or the second direction D2 are separated from each other in the second direction D2. The rotating shafts 140 are also separated from each other in the second direction D2.

Furthermore, when an external force is applied to any rod 110 or any plate structure 120 along the second direction D2, two adjacent rods 110 rotate in opposite directions relative to the first rotation axis 130 and approach each other. At this time, the third rotating shaft 150 coupled with the two rod bodies 110 causes the two adjacent plate-shaped structures 120 to rotate in opposite directions relative to the second rotating shaft 140 and approach each other. Therefore, each rod body 110 synchronously rotates to a nearly horizontal state (this refers to being perpendicular to the second direction D2), and each plate-like structure 120 synchronously rotates to a nearly horizontal state, so that the sensor calibration device 100 moves along the second direction D2. Fold in direction D2.

FIG. 7 is a perspective view of the sensor calibration device 100 of FIG. 1 when folded. When the sensor calibration device 100 is folded, the rod body 110 is substantially parallel to the first side 121 of the plate-like structure 120 . In other words, in this embodiment, the plate-like structure 120 is rectangular, and the long axis of the rod 110 is substantially parallel to the extending direction of the first side 121 of the corresponding coupled plate-like structure 120 . That is to say, the rod body 110 and the plate-like structure 120 are stacked in the first direction D1. It can be seen from this that the sensor calibration device 100 of the present invention can be effectively folded to save storage space.

In this embodiment, the length of each rod body 110 is approximately the same, and the distance between the second side 122 to the third side 123 of each plate-like structure 120 is also approximately the same. As shown in FIG. 4 , when the user completes unfolding the sensor calibration device 100 , there is a distance H1 between the second end 114 of the upper rod 110 and the first end 112 of the lower rod 110 , and the sensor calibration The distance H1 between any two adjacent rods 110 in the device 100 is approximately equal. In addition, as shown in FIG. 5 , when the user completes unfolding the sensor calibration device 100 , there is a distance H2 between the second side 122 of the upper plate-like structure 120 and the third side 123 of the lower plate-like structure 120 . , and the distance H2 between any two adjacent plate-like structures 120 in the sensor calibration device 100 is approximately equal.

In other words, when the user exerts force on any rod 110 or any plate structure 120 to fold or unfold the sensor calibration device 100, all rods 110 and plate structures 120 of the sensor calibration device 100 All can be folded or unfolded together. Therefore, the sensor calibration device 100 of the present invention allows the user to easily and stably change the overall height according to actual needs.

For example, in the embodiment of FIG. 1 , when the sensors 210 are distributed over a wide range of heights, the sensor calibration device 100 can be deployed to the state shown in FIG. 2 . However, when the height range of the distribution of the sensors 210 is narrow, or when only a part of the sensors 210 need to be calibrated, you can also choose to partially expand the sensor calibration device 100 to the state as shown in FIG. 3 .

In this way, multiple sensors 210 installed at any position or height inside the body scanner 200 can obtain depth information that can be used to calibrate each other through any plate structure 120 of the sensor calibration device 100 . Therefore, the sensor calibration device 100 of the present invention can be adjusted according to different calibration requirements, has great application flexibility, and helps to improve the convenience of calibrating the body scanner 200.

Figure 8 is a perspective view of a sensor calibration device 100 according to some embodiments of the present invention. In some embodiments, the sensor calibration device 100 also has a marking structure 180 . The marking structure 180 may extend from the edge of the rod body 110 or the plate-like structure 120 , or be coupled to the edge of the rod body 110 or the plate-like structure 120 . Specifically, marking structure 180 may extend in either direction and have a known length. In addition, the length of the marking structure 180 allows the user to calculate the required size information during the calibration process, thereby helping to improve the accuracy of the calibration. In some other embodiments, the sensor calibration device 100 has a marking pattern 182 printed on the plate-like structure 120 . Marking pattern 182 can extend in either direction and have a known length. The marking pattern 182 has a similar effect to the marking structure 180 and can be used interchangeably with the marking structure 180 .

As shown in FIG. 8 , in some embodiments, the sensor calibration device 100 also has a pneumatic rod 160 and a slide rail 170 for slidably fixing the rod body 110 and the fixed end 102 of the plate-like structure 120 (i.e., located at the bottom). the end of the rod body 110 and the end of the plate-like structure 120). For example, in this embodiment, the sensor calibration device 100 can be stored in the box 300 , so the air pressure rod 160 and the slide rail 170 can be fixed on the bottom plate or inner wall of the box 300 . The pneumatic rod 160 is used to assist the user in unfolding the rod body 110 and the plate-like structure 120 in the first direction D1, and to buffer the user's force in folding the rod body 110 and the plate-like structure 120 in the second direction D2. As shown in FIG. 8 , in this embodiment, the fixed end 102 is connected to the slide rail 170 through the slider 106 . When the sensor calibration device 100 is unfolding or folding, the fixed end 102 can move in the slide rail 170 through the slider 106 . In this way, the process of unfolding or folding the sensor calibration device 100 can be made smoother.

In addition, the sensor calibration device 100 also has a connecting rod 104 disposed between the slide rails 170 . One end of the connecting rod 104 is fixed to the bottom plate or inner wall of the box 300 , and the other end is pivotally connected to the rod body 110 . When the sensor calibration device 100 is unfolding or folding, the connecting rod 104 and the corresponding pivoted rod 110 rotate in opposite directions, so that the rod 110 is rotatably fixed to the box 300 during the sliding process.

FIG. 9 is a schematic diagram of a sensor calibration device 100 stored in a box 300 according to some embodiments of the present invention. In this embodiment, after the rod body 110 and the plate-like structure 120 are folded to the state as shown in FIG. 7 , the box 300 can be used to store and carry the sensor calibration device 100 , and the sensor calibration device 100 can be additionally stored. convenience.

FIG. 10 is a schematic diagram of a sensor calibration device 100 hanging upside down from a ceiling according to some embodiments of the present invention. In this embodiment, the fixed end 102 of the sensor calibration device 100 can be fixed on the ceiling. In some embodiments, the air pressure rod 160 and the slide rail 170 can also be disposed on the fixed end 102 . The user can unfold the sensor calibration device 100 from the ceiling to the floor to a desired height. In some embodiments, as shown in Figure 1, the air pressure rod 160 and the slide rail 170 can also be fixed to the floor.

Figure 11 is a perspective view of a sensor calibration device 100 according to some embodiments of the present invention. In this embodiment, the sensor calibration device 100 further has a handle 190 coupled between the two parallel rods 110 of the sensor calibration device 100 . In this way, the user can simultaneously unfold or fold the two sets of rods 110 and plate structures 120 of the sensor calibration device 100 through the handle 190 , thereby increasing the convenience of unfolding and folding the sensor calibration device 100 .

In summary, the sensor calibration device 100 of the present invention can be effectively folded to save storage space. In addition, the user can easily and stably unfold or fold the sensor calibration device 100 to change the overall height according to actual needs, which helps to improve the convenience of calibrating the sensor 210 (see FIG. 1 ) of the body scanner 200 .

Although the present invention has been disclosed above through embodiments, they are not intended to limit the present invention. Those skilled in the art can make various modifications and modifications without departing from the spirit and scope of the present invention. Therefore, the present invention is The protection scope of the invention shall be determined by the claims.

Claims (10)

1. A sensor calibration apparatus, comprising:

the rod bodies are pivoted with each other and are arranged in a zigzag manner; and

a plurality of plate-like structures each having a first side and a second side and a third side adjacent to the first side, a fourth side opposite to the first side, the plurality of rods being pivotally connected to the first side and the fourth side of the plurality of plate-like structures in parallel, the first side of the plurality of plate-like structures exhibiting a zigzag arrangement opposite to the plurality of rods, and the second side of one of the plurality of plate-like structures and the third side of the other of the plurality of plate-like structures being pivotally connected to each other, wherein the plurality of rods and the plurality of plate-like structures are unfolded in the first direction or folded in the second direction upon application of a force in the first direction or the second direction to one of the plurality of rods, the plurality of plate-like structures being configured to provide sensor depth information;

the sensor calibration device is also provided with a handle, which is coupled between the two groups of parallel rod bodies of the sensor calibration device, and the rod bodies and the plate-shaped structure of the two groups of sensor calibration device are synchronously unfolded or folded through the handle.

2. The sensor calibration apparatus of claim 1, wherein each of the two ends of the rods has an extension, and the two extensions of adjacent two of the plurality of rods are opposite each other, the sensor calibration apparatus further comprising:

the first rotating shaft passes through the two extending parts of two adjacent rod bodies.

3. The sensor calibration apparatus of claim 1, wherein each of the plate-like structures has an extension, and the two extensions of adjacent two of the plurality of plate-like structures are opposite each other, the sensor calibration apparatus further comprising:

the second rotating shaft passes through the two extending parts of two adjacent plate-shaped structures.

4. The sensor calibration apparatus of claim 1, wherein the first side of one of the plurality of plate-like structures is interleaved with the rod body that is correspondingly pivotally connected to the plate-like structure when the plurality of plate-like structures are deployed.

5. The sensor calibration apparatus of claim 1, wherein the plurality of first sides of the plurality of plate-like structures are parallel to the plurality of rods when the plurality of plate-like structures are folded.

6. The sensor calibration apparatus of claim 1, wherein each of the plate-like structures is opposite to a rotational direction of the corresponding rod body when the plurality of plate-like structures are unfolded or folded.

7. The sensor calibration apparatus of claim 1, wherein a distance between the second side of each of the plate-like structures and the third side of an adjacent other is equal.

8. The sensor calibration apparatus of claim 1, wherein each of the rods has opposite first and second ends, the first end of each rod being equidistant from the second end of an adjacent other rod.

9. The sensor calibration apparatus of claim 1, further comprising:

and the marking structure extends from one of the plurality of rod bodies or the plurality of plate-shaped structures to provide size information.

10. The sensor calibration apparatus of claim 1, further comprising:

and the marking pattern is positioned on one of the plurality of plate-shaped structures and used for providing size information.