Calibration device, calibration system and calibration method of wearable equipment

Abstract

The invention discloses a calibration device, a calibration system and a calibration method of wearable equipment, the calibration device comprises a reference bottom plate, a support frame, a first sliding table and a second sliding table, the support frame is arranged on the reference bottom plate; the supporting frame is provided with a sliding rail longitudinally extending in the direction perpendicular to the reference bottom plate. The first sliding table and the second sliding table are arranged on the sliding rail in a sliding mode. The first sliding table is provided with an equipment bearing area used for bearing wearable equipment. The second sliding table is located below the first sliding table, a second-stage moving platform is transversely arranged on the second sliding table, and a card bearing area used for bearing a test card is arranged at the position, corresponding to the equipment bearing area, of the second-stage moving platform. The production calibration is automatically carried out in a mode of moving the test card and reading the noise value data for multiple times, the calibration time of wearing calibration of the wearable device is shortened, and compared with manual calibration, the calibration accuracy is improved, and the feasibility of mass production is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of optical devices, and particularly to a calibration device, a calibration system and a calibration method for a wearable device. Background Art

[0002] A wearable device is a portable device that can be directly worn on the body or integrated into the user's clothes or accessories. A wearable device is not only a hardware device, but also realizes powerful functions through software support, data interaction and cloud interaction. Wearable devices will bring great changes to our lives and perceptions.

[0003] With the development of wearable devices, more and more functions are carried on wearable devices. The power consumption of the imaging and related electronic drive parts on wearable devices is relatively large, while the battery capacity of related connected devices is limited. Therefore, in order to save power to the maximum extent and increase the standby and usage time, a wearing detection function is currently carried on wearable devices, that is, when the device is not detected to be worn, it can be put into a low-power mode or some functional parts can be turned off to reduce power consumption and increase the device usage time to the maximum extent.

[0004] However, currently, the performances of wearable devices are different when they leave the factory. Therefore, manual wearing calibration needs to be carried out before application. Calibrating the wearing calibration function of intelligent devices manually is time-consuming and laborious, and there is no fixed standard, so it is difficult to control the calibration effect, resulting in low feasibility of mass production.

[0005] Therefore, the prior art still needs to be improved and developed. Summary of the Invention

[0006] In view of the above deficiencies of the prior art, the purpose of the present invention is to provide a calibration device, a calibration system and a calibration method for a wearable device, aiming to solve the problems of low calibration efficiency, unstable calibration effect and affecting the feasibility of mass production for the wearing calibration function in the production process of existing wearable devices.

[0007] The technical solution of the present invention is as follows:

[0008] A calibration device for a wearable device, which includes a reference base plate, a support frame, a first sliding table and a second sliding table. The support frame is arranged on the reference base plate; a slide rail extending longitudinally in a direction perpendicular to the reference base plate is arranged on the support frame; both the first sliding table and the second sliding table are slidably arranged on the slide rail; a device bearing area for bearing the wearable device is arranged on the first sliding table; the second sliding table is located below the first sliding table, a secondary moving platform is arranged horizontally on the second sliding table, and a card bearing area for bearing a test card is arranged at a position corresponding to the device bearing area on the secondary moving platform.

[0009] The calibration device for the wearable device, wherein the first sliding platform includes a first connecting slider and a first clamp, the first connecting slider can be slidably set on the slide rail; the first clamp is horizontally arranged on the side of the first connecting slider away from the slide rail; the first clamp is provided with a fixing groove, and the fixing groove is used to place the wearable device; a perforation is provided on the bottom surface of the fixing groove at a position facing the sensor of the wearable device.

[0010] The calibration device of the wearable device, wherein the second sliding platform includes a second connecting slider, a secondary pushing assembly and a second clamp, the second connecting slider can be slidably set on the slide rail and is located below the first connecting slider; the second connecting slider is provided with a laterally extending strip slide; the secondary pushing assembly is arranged on the second connecting slider; the second clamp can be slidably set on the strip slide; the second clamp is connected to the power output end of the secondary pushing assembly; the second clamp includes a first clamping platform and a second clamping platform which can slide relative to each other, the first clamping platform is used to clamp a gray test card, and the second clamping platform is used to clamp a white test card; the secondary pushing assembly is used to push the first clamping platform or the second clamping platform to move back and forth on the strip slide.

[0011] The calibration device for the wearable device, wherein the support frame is provided with a longitudinally extending ruler, and the ruler is arranged side by side on the side of the slide rail.

[0012] The calibration device for the wearable device, wherein a light absorbing layer is provided on the surface of the reference base plate facing the first sliding platform.

[0013] The present application also discloses a calibration system for a wearable device, which includes a test base, a light box, a control panel and a wireless input module. The light box is arranged on the test base, and a sealed test cavity is formed in the light box; a calibration device for a wearable device as described above is arranged in the sealed test cavity; the control panel is arranged on the light box; the control panel is electrically connected to the first sliding table and the second sliding table; the wireless input module is arranged on the light box for communicating with the wearable device.

[0014] The calibration system for the wearable device, wherein the calibration system includes a code scanning module and a smart terminal, the code scanning module is arranged on the light box and is communicatively connected with the smart terminal; the code scanning module is used to scan the identity code on the wearable device.

[0015] The present application also discloses a calibration method for a wearable device, which is used for the calibration device of any one of the above-mentioned wearable devices; wherein, the method includes the following steps:

[0016] Adjust the first sliding table to a first preset height above the reference bottom plate, place the wearable device to be calibrated in the device bearing area on the first sliding table, read the noise value data of the reference bottom plate, and obtain the background noise value;

[0017] Adjust the second sliding table to a second preset height above the reference bottom plate, and move the card bearing area of the secondary moving platform to directly below the device bearing area; wherein, a gray test card and a white test card are arranged in the card bearing area;

[0018] Push the secondary moving platform to make the gray test card located directly below the wearable device, read the noise value data of the gray test card, and obtain the first test noise value; determine the calibration threshold according to the first test noise value and the background noise value;

[0019] Push the secondary moving platform to make the white test card located directly below the wearable device, read the noise value data of the white test card, and obtain the second test noise value; determine the calibration result according to the second test noise value and the background noise value;

[0020] If the calibration result is within the range of the calibration threshold, it is determined that the calibration of the wearable device is successful.

[0021] In the calibration method of the wearable device, the step of reading the noise value data of the reference bottom plate and obtaining the background noise value specifically includes:

[0022] Read the noise value data of the reference bottom plate 3 to 8 times to obtain multiple reading values;

[0023] Compare the maximum value and the minimum value among the multiple reading values;

[0024] If the difference between the maximum value and the minimum value among the multiple reading values exceeds 50, it is determined that the reading fails, and the noise value data of the reference bottom plate is read again;

[0025] If the difference between the maximum value and the minimum value among the multiple reading values is less than or equal to 50, it is determined that the reading is successful, and the average value of the multiple reading values is taken as the background noise value.

[0026] In the calibration method of the wearable device, the minimum extreme value of the calibration threshold is the difference between the first test noise value and the background noise value; the maximum extreme value of the calibration threshold is 1.5 times the difference between the first test noise value and the background noise value.

[0027] Compared with the prior art, the embodiments of the present invention have the following advantages:

[0028] The calibration device of the wearable device disclosed in the present invention is used to automatically calibrate the wearing calibration function of the wearable device before leaving the factory. During calibration, the wearable device is placed on the first sliding table. First, the noise value data of the reference bottom plate is read by the sensor of the wearable device as the background noise value. Then, by moving the second sliding table and the secondary moving platform, the card bearing area is moved directly below the device bearing area, and the noise value data of different test cards is read for calibration. It can be seen that during the calibration process, the position of the wearable device is fixed, and the test cards can be automatically controlled by the second sliding table and the secondary moving platform without manual participation in the calibration process. Therefore, the entire calibration process is automated, the difference in data collection is small, the work efficiency is high, the calibration effect is accurate, which is conducive to improving the feasibility of mass production of wearable devices. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments recorded in the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0030] Figure 1 It is a schematic structural diagram of the calibration device of the wearable device in the present invention;

[0031] Figure 2 It is a schematic structural diagram of the calibration device of the wearable device in the present invention from another angle;

[0032] Figure 3 It is a schematic structural diagram of the calibration system of the wearable device in the present invention;

[0033] Figure 4 It is a flowchart of the calibration method of the wearable device in the present invention;

[0034] Figure 5 It is a calibration flowchart of the wearable device in an embodiment of the present invention.

[0035] Among them, 10 is the reference base plate; 11 is the light-absorbing layer; 20 is the support frame; 21 is the slide rail; 22 is the scale; 30 is the first sliding table; 31 is the first connecting slider; 32 is the first fixture; 321 is the fixing groove; 322 is the perforation; 40 is the second sliding table; 41 is the second connecting slider; 411 is the strip-shaped slideway; 42 is the secondary pushing component; 43 is the second fixture; 431 is the first clamping platform; 432 is the second clamping platform; 50 is the wearable device; 60 is the gray test card; 70 is the white test card; 100 is the test base; 200 is the light box; 300 is the control panel; 400 is the wireless input module; 500 is the scanning code module; 600 is the intelligent terminal. Detailed implementation manners

[0036] To enable those skilled in the art to better understand the solution of the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present invention.

[0037] Refer to Figure 1 and Figure 2 In an embodiment of the present invention application, a calibration device for a wearable device 50 is disclosed. Among them, it includes a reference base plate 10, a support frame 20, a first sliding table 30, and a second sliding table 40. The support frame 20 is arranged on the reference base plate 10; a slide rail 21 extending longitudinally in a direction perpendicular to the reference base plate 10 is arranged on the support frame 20; the first sliding table 30 and the second sliding table 40 are both slidably arranged on the slide rail 21; a device bearing area for bearing the wearable device 50 is arranged on the first sliding table 30; the second sliding table 40 is located below the first sliding table 30, a secondary moving platform is transversely arranged on the second sliding table 40, and a card bearing area for bearing the test card is arranged at a position corresponding to the device bearing area on the secondary moving platform.

[0038] The calibration device for the wearable device 50 disclosed in this embodiment is used to automatically calibrate the wearing calibration function of the wearable device 50 before leaving the factory. During calibration, the wearable device 50 is placed on the first sliding table 30. First, the noise value data of the reference bottom plate 10 is read by the sensor of the wearable device 50 as the background noise value. Then, in this embodiment, both the first sliding table 30 and the second sliding table 40 can be driven by motors to improve the degree of automatic control and increase the control accuracy. Similarly, multiple test cards are placed on the secondary moving platform, and the movement of the test cards can be promoted by hydraulic pushing or motor driving. By longitudinally moving the second sliding table 40 to an appropriate height to maintain a test distance from the first sliding table 30, and laterally moving the secondary moving platform, the card bearing area with the test cards is moved directly below the device bearing area, and the noise value data of different test cards is read for calibration.

[0039] Specifically, during the calibration process, the position of the wearable device 50 is fixed, and the test cards can be automatically controlled by the second sliding table 40 and the secondary moving platform without manual participation in the calibration process. Therefore, the entire calibration process is automated, with small differences in data collection, high work efficiency, accurate calibration results, and is conducive to improving the feasibility of mass production of the wearable device 50.

[0040] As Figure 1 shown, as another implementation manner of this embodiment, it is disclosed that the surface of the reference bottom plate 10 facing the first sliding table 30 is provided with a light-absorbing layer 11. In this embodiment, the light-absorbing layer 11 is provided to increase light absorption. Preferably, a black flannel layer can be used as the light-absorbing layer 11. Before testing, the noise value data of the surface of the light-absorbing layer 11 is read by the sensor of the wearable device 50, and the background noise value in the calibration environment can be obtained. Then, combined with the test noise value obtained during the calibration process, the accuracy of the read noise value can be improved, the interference of environmental factors can be eliminated, and it is conducive to improving the accuracy of calibration.

[0041] It should be noted that in this embodiment, only the example of setting the light-absorbing layer 11 on the reference bottom plate 10 is given, but the protection scope of the present invention is not limited thereto. Other types of light-absorbing layers can also be set on the reference bottom plate 10. As long as the technical effects disclosed in this application can be achieved and are equivalent replacements of the inventive concept, they should also be within the protection scope of this application.

[0042] Again, as Figure 1 shown, as an implementation manner of this embodiment, it is disclosed that a longitudinally extending scale 22 is provided on the support frame 20, and the scale 22 is arranged side by side on the side of the slide rail 21. By arranging the scale 22 side by side on the side of the slide rail 21, it is convenient to visually judge the distance between the first sliding table 30 and the second sliding table 40 from the reference bottom plate 10, so as to accurately adjust the heights of the first sliding table 30 and the second sliding table 40.

[0043] For example Figure 1 As shown, as another implementation of this embodiment, the first sliding platform 30 is disclosed to include a first connecting slider 31 and a first clamp 32, and the first connecting slider 31 can be slidably set on the slide rail 21; the first clamp 32 maintains a horizontal state and is fixed on the side of the first connecting slider 31 away from the slide rail 21; the first clamp 32 is provided with a fixing groove 321, and the fixing groove 321 is used to place the wearable device 50; a perforation 322 is provided on the bottom surface of the fixing groove 321 at a position facing the sensor of the wearable device 50.

[0044] The first clamp 32 disclosed in this embodiment is arranged horizontally, and the wearable device 50 can be stably placed in the fixing groove 321. The sensor of the wearable device 50 is generally arranged at the bridge of the nose of the frame. Facing the position of the sensor, a perforation 322 is provided on the bottom surface of the fixing groove 321, so that the sensor can detect the area directly below and read the noise value. The first connecting slider 31 can be controlled by a stepper motor and move up and down on the slide rail 21 in a crawler drive manner. During the test, the stepper motor is stationary, and the first connecting slider 31 is kept fixed, so that the first clamp 32 clamps the wearable device 50 at a fixed height position for calibration.

[0045] like Figure 2 As shown, as another implementation of this embodiment, the second sliding platform 40 is disclosed to include a second connecting slider 41, a secondary pushing assembly 42 and a second clamp 43, the second connecting slider 41 can be slidably set on the slide rail 21, and is located below the first connecting slider 31; the second connecting slider 41 is provided with a transversely extending strip slide 411; the secondary pushing assembly 42 is arranged on the second connecting slider 41; the second clamp 43 can be slidably set on the strip slide 411; the second clamp 43 is connected to the power output end of the secondary pushing assembly 42; the second clamp 43 includes a first clamping platform 431 and a second clamping platform 432 which can slide relative to each other, the first clamping platform 431 is used to clamp the gray test card 60, and the second clamping platform 432 is used to clamp the white test card 70; the secondary pushing assembly 42 is used to push the first clamping platform 431 or the second clamping platform 432 to move back and forth on the strip slide 411.

[0046] The second sliding platform 40 disclosed in this embodiment carries a test card. According to the calibration distance required during calibration, the second connecting slider 41 can be moved up and down to adjust the distance between the second clamp 43 and the first clamp 32, that is, the distance between the test card and the sensor of the wearable device 50.

[0047] In this embodiment, a second fixture 43 is arranged on the horizontally extending strip-shaped slideway 411. The second fixture 43 is driven by a secondary pushing component 42. The secondary pushing component 42 includes components such as a secondary air cylinder and a secondary telescopic rod. The telescopic length of each section of the secondary telescopic rod is controlled separately by the secondary air cylinder. A first clamping platform 431 and a second clamping platform 432 are arranged on the secondary telescopic rod before and after, and a gray test card 60 and a white test card 70 are placed respectively. During the calibration process, the gray test card 60 and the white test card 70 are horizontally moved under the sensor in batches for calibration. The entire moving process can be automatically controlled by an external control panel 300, with high control precision, which is beneficial to performing a repeatable and accurate calibration process and improving the efficiency of automatic calibration.

[0048] It should be noted that in this embodiment, only a secondary air cylinder is exemplified as the driving member, but the protection scope of the present invention is not limited thereto. Other types of driving members can also be arranged to push the first clamping platform 431 and the second clamping platform 432. As long as the technical effects disclosed in this application can be achieved and are equivalent replacements of the inventive concept of the present invention, they should also be within the protection scope of this application.

[0049] In addition, it should be noted that in this embodiment, only two types of test cards, gray and white, are exemplified, but the protection scope of the present invention is not limited thereto. The test cards arranged on the reference base plate 10 can be selected in other colors or quantities according to actual needs. As long as the technical effects disclosed in this application can be achieved and are equivalent replacements of the inventive concept of the present invention, they should also be within the protection scope of this application.

[0050] As Figure 3 shown, as another embodiment of this application, a calibration system for a wearable device 50 is disclosed. Among them, it includes a test base 100, a light box 200, a control panel 300, and a wireless input module 400. The light box 200 is arranged on the test base 100, and a sealed test chamber is formed inside the light box 200; a calibration device for the wearable device 50 as described above is arranged in the sealed test chamber; the control panel 300 is arranged on the light box 200; the control panel 300 is electrically connected to both the first sliding table 30 and the second sliding table 40; the wireless input module 400 is arranged on the light box 200 and is used for communication connection with the wearable device 50.

[0051] In this embodiment, the calibration system disclosed fixes the light box 200 on a test base 100 to maintain stability during the calibration process. A control panel 300 is fixed on the outer surface of the light box 200, preferably set on the top of the light box 200 to facilitate maintaining stability; the calibration device of the wearable device 50 is connected to the control panel 300 to control the first sliding table 30 and the second sliding table 40, as well as the secondary moving platform on the second sliding table 40, so as to automatically adjust the positions of the wearable device 50 and the test card, and perform calibration at an appropriate distance. The side of the light box 200 is open and provided with a shutter. The entire calibration device of the wearable device 50 is placed in the light box 200. When calibrating, the shutter is closed, and no external light will enter the sealed test chamber, reducing external interference, which is beneficial to improving the accuracy of the calibration process and reducing the influence of environmental noise values.

[0052] In this embodiment, the wireless input module 400 may include a Bluetooth module. For example, a Bluetooth adapter LAY5012A can be used. A communication connection is established with the wearable device 50 through the wireless input module 400, and the read noise value can be written into the wearable device 50 to determine whether the calibration can be successful. Specifically, the wireless input module 400 can be assembled on the control panel 300 to integrate components and reduce the installation steps. The wireless input module 400 can also be set on intelligent terminals 600 such as computers, mobile phones, and tablet computers to send noise value information and control functions such as starting, shutting down, and mode adjustment of the wearable device 50 through the intelligent terminal 600.

[0053] Specifically, as an implementation manner of this embodiment, it is disclosed that the calibration system includes a code scanning module 500 and an intelligent terminal 600. The code scanning module 500 is set on the light box 200 and is communicatively connected to the intelligent terminal 600; the code scanning module 500 is used to scan the identification code on the wearable device 50.

[0054] The code scanning module 500 disclosed in this embodiment can adopt a barcode scanner. During the production process, each wearable device 50 is printed with an "identification code", such as a barcode, a QR code, or a digital code. Then, before calibration, it is first scanned by the barcode scanner to read and record the calibrated product, and it is displayed on the intelligent terminal 600 together with the calibration result. The intelligent terminal 600 disclosed in this embodiment includes, but is not limited to, electronic devices such as computers, control hosts, and mobile phones. The calibration results are recorded on the intelligent terminal 600 in one-to-one correspondence with the "identification codes" of the products, so that the factory data of each product is traceable, facilitating subsequent maintenance, repair, recycling and other processes.

[0055] As Figure 4 shown, as another embodiment of this application, a calibration method for a wearable device is disclosed, which is used for the calibration device of the wearable device as described in any one of the above; wherein, the following steps are included:

[0056] S100. Adjust the first sliding table to a first preset height above the reference base plate, place the wearable device to be calibrated in the device bearing area on the first sliding table, read the noise value data of the reference base plate, and obtain the background noise value.

[0057] S200. Adjust the second sliding table to a second preset height above the reference base plate, and move the card bearing area of the secondary moving platform to directly below the device bearing area; wherein, a gray test card and a white test card are arranged in the card bearing area.

[0058] S300. Push the secondary moving platform to make the gray test card located directly below the wearable device, read the noise value data of the gray test card, and obtain the first test noise value; determine the calibration threshold based on the first test noise value and the background noise value.

[0059] S400. Push the secondary moving platform to make the white test card located directly below the wearable device, read the noise value data of the white test card, and obtain the second test noise value; determine the calibration result based on the second test noise value and the background noise value.

[0060] S500. If the calibration result is within the range of the calibration threshold, it is determined that the calibration of the wearable device is successful.

[0061] The calibration method disclosed in this embodiment realizes a breakthrough in mass production calibration of wearable devices. By controlling different test cards to simulate the user's wearing scenario, collecting data accordingly, and automatically calibrating, during the test, the calibration threshold of the test device is determined. Thus, during the user's use process, as long as the device is worn, the sensor will detect the noise value within the calibration threshold range, achieving a non-intrusive power-on or display function. The calibration method disclosed in this embodiment has accurate results and excludes the influence of uncertain factors in manual calibration.

[0062] Specifically, as an implementation manner of this embodiment, the step of reading the noise value data of the reference base plate and obtaining the background noise value specifically includes:

[0063] A100. Read the noise value data of the reference base plate 3 to 8 times to obtain multiple reading values.

[0064] A200. Compare the maximum value and the minimum value among the multiple reading values.

[0065] A300. If the difference between the maximum value and the minimum value among the multiple reading values exceeds 50, it is determined that the reading fails, and the noise value data of the reference base plate is read again.

[0066] A400. If the difference between the maximum value and the minimum value among multiple said read values is less than or equal to 50, it is determined that the reading is successful, and the average value of multiple said read values is taken as the background noise value.

[0067] In this embodiment, by taking multiple readings, effective noise value data is obtained, avoiding reading errors caused by accidental situations, improving the reading accuracy during calibration, and being conducive to increasing the calibration accuracy.

[0068] Specifically, as another implementation manner of this embodiment, it is disclosed that the minimum extreme value of the calibration threshold is the difference between the first test noise value and the background noise value; the maximum extreme value of the calibration threshold is 1.5 times the difference between the first test noise value and the background noise value.

[0069] As Figure 5 shown, as another implementation manner of this embodiment, the calibration process is disclosed as follows:

[0070] 1. Open the light box, place the wearable device on the first sliding table, and then close the light box;

[0071] 2. Scan the wearable device with a barcode scanner and record the "identification code" of this product;

[0072] 3. Write a background noise value of 0 into the wearable device through the Bluetooth module for initialization;

[0073] 4. Adjust the height of the first sliding table through the control panel so that the wearable device is 10 - 20 centimeters away from the reference bottom plate, preferably 15 centimeters;

[0074] 5. The sensor reads the noise value of the light-absorbing layer directly below, repeats 3 - 8 times, preferably 5 times, compares the maximum value and the minimum value of these noise values. When the difference between the two is less than or equal to 50, the read data is valid, and the average value of all read noise values is taken as the noise value data A; when the difference between the two is greater than 50, the read data is abnormal, the calibration fails, the background noise value in the wearable device is initialized, and the calibration ends;

[0075] 6. Determine whether the noise value data A is greater than 3900; if the noise value data A is greater than 3900, it is determined that the data is abnormal, the calibration fails, the background noise value in the wearable device is initialized, and the calibration ends; if the noise value data A is less than or equal to 3900, it is determined that the data is normal;

[0076] 7. Write the noise value data A into the wearable device through the Bluetooth module, then read the noise value A' corresponding to the noise value data A from the wearable device, compare the noise value A' and the noise value data A. If the two are the same, it proves that the writing is successful; if the two are different, the calibration fails, the background noise value in the wearable device is initialized, and the calibration ends;

[0077] 8. Adjust the height of the second sliding table through the control panel so that the height difference between the gray test card and the sensor is 2 - 5 cm, preferably 3 cm; the sensor reads the noise value of the gray test card directly below (it should be noted that the noise value read at this time is based on the noise value data A that has been written as the background noise value), repeat 3 - 8 times, preferably 5 times; determine whether the read noise value is greater than 2600 or less than 300; if the read noise value is within the range of 300 to 2600, it is determined that the data is normal; if the read noise value is greater than 2600 or less than 300, it is determined that the data is abnormal, the calibration fails, initialize the background noise value in the wearable device, and end the calibration;

[0078] Then, compare the maximum and minimum values of the read noise values. When the difference between the two is less than or equal to 50, the read data is valid, and take the average value of all the read noise values as the noise value data B; when the difference between the two is greater than 50, the read data is abnormal, the calibration fails, initialize the background noise value in the wearable device, and end the calibration;

[0079] 9. Write the noise value data B into the wearable device through the Bluetooth module, set the calibration threshold with the noise value data B as the minimum value and 1.5 times the noise value data B as the maximum value; then read the calibration threshold from the wearable device. If the minimum value B` of the read calibration threshold is equal to the noise value data B and the maximum value B`` of the read calibration threshold is equal to 1.5 times the noise value data B, it proves that the writing is successful; if the minimum value B` of the read calibration threshold is not equal to the noise value data B, or the maximum value B`` of the read calibration threshold is not equal to 1.5 times the noise value data B, the calibration fails, initialize the background noise value in the wearable device, and end the calibration;

[0080] 10. Control the secondary moving platform through the control panel to push the gray test card forward, push the gray test card forward, and at the same time push the white test card forward, push the white test card to directly below the sensor; the sensor reads the noise value of the white test card directly below (it should be noted that the noise value read at this time is also based on the noise value data A that has been written as the background noise value), repeat 3 - 8 times, preferably 5 times; obtain multiple noise value data C;

[0081] 11. Use the wearing chip (model: VCNL36826WN3OQ) carried by the wearable device to determine whether the noise value data C falls within the calibration threshold range. If it is within the range, that is, the sensor senses the wearing state, record the wearing flag as 1; if it is not within the range, that is, the sensor senses that the device is not worn, record the wearing flag as 0;

[0082] 12. If multiple recorded wearing flags are all 1, the calibration is successful; if there is at least one 0 among the multiple recorded wearing flags, the calibration fails, and the background noise value in the wearable device is initialized, and the calibration ends.

[0083] In this embodiment, by strictly judging whether the noise value data meets the necessary conditions in each step to screen qualified products, the calibration accuracy is improved. Each time the calibration fails, after the calibration ends, through adjustment, the wearable device needs to be calibrated again until the calibration is successful before leaving the factory, which is beneficial to ensuring the product quality of mass production.

[0084] In summary, the present application discloses a calibration device for a wearable device, which includes a reference base plate, a support frame, a first sliding table and a second sliding table. The support frame is arranged on the reference base plate; a slide rail extending longitudinally in a direction perpendicular to the reference base plate is arranged on the support frame; both the first sliding table and the second sliding table are slidably arranged on the slide rail; an equipment bearing area for bearing the wearable device is arranged on the first sliding table; the second sliding table is located below the first sliding table, a secondary moving platform is horizontally arranged on the second sliding table, and a card bearing area for bearing test cards is arranged at a position corresponding to the equipment bearing area on the secondary moving platform. The calibration device for the wearable device disclosed in this embodiment is used to automatically calibrate the wearing calibration function of the wearable device before leaving the factory. During calibration, the wearable device is placed on the first sliding table. First, the background noise value is read from the reference base plate by the sensor of the wearable device as the background noise value; then, by moving the second sliding table and the secondary moving platform, the card bearing area is moved directly below the equipment bearing area, and the noise value data of different test cards is read for calibration. It can be seen that during the calibration process, the position of the wearable device is fixed, and the test card can be automatically controlled by the second sliding table and the secondary moving platform without manual participation in the calibration process. Therefore, the entire calibration process is automated, the difference in data collection is small, the work efficiency is high, the calibration effect is accurate, and it is beneficial to improve the feasibility of mass production of wearable devices.

[0085] It should be noted that, without conflict, the embodiments in the present application and the features in the embodiments can be combined with each other.

[0086] It should be noted that the present invention takes the calibration device of the wearable device as an example to introduce the specific structure and working principle of the present invention, but the application of the present invention is not limited to the calibration device of the wearable device, and can also be applied to the detection and production of other similar workpieces.

[0087] It should be understood that the present invention is not limited to the precise structure already described and shown in the drawings, and various modifications and changes can be made without departing from its scope. The scope of the present invention is only limited by the appended claims.

[0088] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A calibration device for a wearable device, characterized in that, include: Refer to the base plate; A support frame is arranged on the reference bottom plate; the support frame is provided with a slide rail extending longitudinally in a direction perpendicular to the reference bottom plate; The first sliding platform and the second sliding platform are both slidably arranged on the sliding rail; the first sliding platform is provided with a device carrying area for carrying a wearable device; the second sliding platform is located below the first sliding platform, and a secondary mobile platform is horizontally arranged on the second sliding platform, and a card carrying area for carrying a test card is arranged at a position on the secondary mobile platform corresponding to the device carrying area.

2. The calibration device for a wearable device according to claim 1, characterized in that, The first sliding platform comprises a first connecting slider and a first clamp, wherein the first connecting slider is slidably disposed on the slide rail; the first clamp is horizontally disposed on a side of the first connecting slider away from the slide rail; Wherein, the first fixture is provided with a fixing groove, and the fixing groove is used to place the wearable device; and a perforation is provided on the bottom surface of the fixing groove at a position facing the sensor of the wearable device.

3. The calibration device for a wearable device according to claim 2, characterized in that, The second sliding platform comprises: A second connecting slider is slidably disposed on the slide rail and is located below the first connecting slider; the second connecting slider is provided with a strip slide extending laterally; A secondary pushing component, arranged on the second connecting slider; A second clamp is slidably disposed on the strip slide; the second clamp is connected to the power output end of the secondary pushing assembly; Among them, the second clamp includes a first clamping platform and a second clamping platform which can slide relative to each other, the first clamping platform is used to clamp the gray test card, and the second clamping platform is used to clamp the white test card; the secondary pushing component is used to push the first clamping platform or the second clamping platform to move back and forth on the strip slide.

4. The calibration device for a wearable device according to claim 1, characterized in that, The support frame is provided with a longitudinally extending ruler, and the ruler is arranged side by side on the side of the slide rail.

5. The calibration device for a wearable device according to claim 1, characterized in that, A light absorbing layer is disposed on the surface of the reference bottom plate facing the first sliding stage.

6. A calibration system for a wearable device, characterized in that, include: Test base; A light box, arranged on the test base, wherein a sealed test cavity is formed in the light box; a calibration device for a wearable device according to any one of claims 1 to 5 is arranged in the sealed test cavity; A control panel is arranged on the light box; the control panel is electrically connected to the first sliding platform and the second sliding platform; as well as A wireless input module is arranged on the light box and is used for communication connection with the wearable device.

7. The calibration system for a wearable device according to claim 6, characterized in that, The calibration system includes a code scanning module and a smart terminal. The code scanning module is arranged on the light box and is communicatively connected with the smart terminal. The code scanning module is used to scan the identity code on the wearable device.

8. A calibration method for a wearable device, used for the calibration device of the wearable device according to any one of claims 1 to 5; characterized in that, The steps include: Adjust the first sliding platform to a first preset height above the reference base plate, place the wearable device to be calibrated in the device carrying area on the first sliding platform, read the noise value data of the reference base plate, and obtain the background noise value; Adjust the second sliding platform to a second preset height above the reference bottom plate, and move the card carrying area of ​​the secondary mobile platform to just below the device carrying area; wherein a gray test card and a white test card are provided in the card carrying area; Push the secondary mobile platform so that the gray test card is located directly below the wearable device, read the noise value data of the gray test card, and obtain the first test noise value; determine the calibration threshold based on the first test noise value and the background noise value; Push the secondary mobile platform so that the white test card is located directly below the wearable device, read the noise value data of the white test card, and obtain the second test noise value; determine the calibration result based on the second test noise value and the background noise value; If the calibration result is within the range of the calibration threshold, it is determined that the wearable device is successfully calibrated.

9. The calibration method for a wearable device according to claim 8, characterized in that, The step of reading the noise value data of the reference bottom plate to obtain the background noise value specifically includes: Read the noise value data of the reference bottom plate 3 to 8 times to obtain multiple reading values; Compare the maximum value and the minimum value among the multiple reading values; If the difference between the maximum value and the minimum value among the multiple reading values exceeds 50, it is determined that the reading fails, and the noise value data of the reference bottom plate is read again; If the difference between the maximum value and the minimum value among the multiple reading values is less than or equal to 50, it is determined that the reading is successful, and the average value of the multiple reading values is taken as the background noise value.

10. The calibration method of the wearable device according to claim 8, wherein, The minimum extreme value of the calibration threshold is the difference between the first test noise value and the background noise value; the maximum extreme value of the calibration threshold is 1.5 times the difference between the first test noise value and the background noise value.

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