Remote calibration device and method for hardness unit of comprehensive test board

Abstract

The invention discloses a remote calibration device and method for a hardness unit of a comprehensive test board, and the device comprises a high-precision calibration gauge block and a low-precision calibration gauge block, each gauge block comprises a lower supporting seat and an upper supporting seat, a spring is arranged in the lower supporting seat and the upper supporting seat in a penetrating manner in the vertical direction, the upper supporting seat is embedded in the lower supporting seat, and the lower supporting seat is embedded in the lower supporting seat; guide rails are arranged on the outer side wall of the upper supporting seat and the inner side wall of the lower supporting seat in the vertical direction, the upper supporting seat can slide along the guide rails, and each gauge block further comprises a pressure sensor, a timing sensor and a 5G communication module. According to the remote calibration device and method for the hardness unit of the comprehensive test board, the upper supporting seat is compressed downwards through the guide rail and the spring in the pressing process, the pre-pressure and the full pressure are detected through the pressure sensor, the compression time is detected through the timing sensor, and the detection result is uploaded through the 5G communication module so that a metrological verification mechanism can check the detection result; and remote calibration of the hardness unit can be realized.

Description

Technical Field

[0001] The present invention relates to the technical field of instrument calibration, and more specifically, to a remote calibration device and method for a hardness unit of a comprehensive test bench. Background Art

[0002] Cigarette hardness refers to the ability of a cigarette to resist deformation in the radial direction under specific atmospheric conditions. Cigarette hardness is one of the key indicators for evaluating cigarette quality. It not only affects the appearance quality of cigarettes, but also affects the mainstream smoke characteristics and sensory smoking experience of cigarettes.

[0003] The hardness of cigarettes is measured by a hardness unit on a comprehensive test bench. The unit applies a specific pressure along the radial direction of the cigarette by pressing down the probe, and after a certain period of time, calculates the hardness value based on the diameter change before and after the compression of the cigarette. To ensure the accuracy, stability and consistency of the test results, the instrument must be calibrated regularly. Usually, high-precision metrological devices are used to verify or calibrate the testing instruments to achieve traceability and transmission of the value, ensure the standardization and unification of the parameters of the testing instruments, and make them meet the established standards. The metrological instruments of the hardness unit of the comprehensive test bench include hardness standard rods and pressure measuring devices. The conditions that the hardness standard rod should meet include the maximum allowable error of the diameter of ±0.005mm, the diameter range of 5mm to 9mm, and the value of the standard rod should be evenly distributed. The conditions that the pressure measuring device should meet include that the sensor probe can be inserted into the hardness unit without interfering with the hardness test, the pressure measurement resolution reaches 0.001N, the measurement accuracy is better than 1%, and the measurement range meets the requirements of 0 to 3N. During the measurement and calibration process, the technical personnel of the measurement and verification institution need to bring the measurement equipment to the site and perform on-site calibration according to the calibration method. Due to the high labor cost and long time consumption, the efficiency is low.

[0004] Therefore, there is an urgent need for a remote calibration device and method for a hardness unit of a comprehensive test bench. Summary of the invention

[0005] The purpose of the present invention is to provide a remote calibration device and method for a hardness unit of a comprehensive test bench to solve the problems in the above-mentioned prior art, which can realize the remote calibration of the hardness unit of the comprehensive test bench, help reduce labor costs and capital consumption, and improve work efficiency.

[0006] The present invention provides a remote calibration device and method for a hardness unit of a comprehensive test bench, which includes:

[0007] A high-precision calibration block and a low-precision calibration block, the high-precision calibration block and the low-precision calibration block respectively include a lower support seat and an upper support seat arranged from bottom to top, the lower support seat and the upper support seat are provided with springs penetrating in the vertical direction, the upper support seat can be slidably embedded in the lower support seat, and guide rails are provided at corresponding positions on the two side outer walls of the upper support seat and the two side inner walls of the lower support seat in the vertical direction, and the upper support seat can slide along the guide rails, the high-precision calibration block and the low-precision calibration block also respectively include a pressure sensor, a timing sensor and a 5G communication module, the 5G communication module is connected to the corresponding pressure sensor and the timing sensor, and is used to upload the detection results of the pressure sensor and / or the timing sensor to the cloud server.

[0008] As described above, in the remote calibration device of the hardness unit of the integrated test bench, preferably, the height of the high-precision calibration block in the fully compressed state is 0.98 cm-1.02 cm; the height of the low-precision calibration block in the fully compressed state is 0.78 cm-0.82 cm.

[0009] The remote calibration device of the hardness unit of the integrated test bench as described above, wherein, preferably, is vertically arranged in the lower support seat and the upper support seat, and the spring is covered on the outside of the corresponding test hole.

[0010] The remote calibration device of the hardness unit of the integrated test bench as described above, wherein, preferably, during the remote calibration process, the high-precision calibration block or the low-precision calibration block is located on the hardness unit test bench, and the test hole is aligned with the pressure test head of the hardness unit test bench, and the diameter of the test hole is smaller than the diameter of the pressure test head.

[0011] As described above, in the remote calibration device of the hardness unit of the integrated test bench, preferably, a groove is provided on the top of the lower support seat corresponding to the high-precision calibration block and the low-precision calibration block, and the upper support seat can slide downward along the guide rail into the groove of the lower support seat.

[0012] As described above, in the remote calibration device for the hardness unit of the integrated test bench, preferably, the pressure sensor and the timing sensor corresponding to the high-precision calibration block and the low-precision calibration block are arranged in the corresponding lower support seat.

[0013] In the remote calibration device for the hardness unit of the integrated test bench as described above, preferably, the timing sensor comprises an infrared timing sensor.

[0014] The present invention also provides a remote calibration method for a hardness unit of a comprehensive test bench using the above device, comprising the following steps:

[0015] Start the hardness measurement unit and remote calibration device;

[0016] The test head of the hardness measurement unit applies pre-pressure and full pressure to the high-precision calibration module and the low-precision calibration module of the remote calibration device in turn, and in the process of applying the pre-pressure and the full pressure, the detection results of the pressure sensor and / or the timing sensor are used to obtain the evaluation results of each metrological calibration index, and the metrological calibration index includes pre-pressure, pre-pressure time, full pressure load, full pressure time and displacement;

[0017] Transmit the evaluation results of each metrological calibration index and the corresponding test results to the cloud server;

[0018] The evaluation results of each metrological calibration index transmitted to the cloud server and the corresponding test results are checked to obtain the remote calibration result of the hardness unit of the comprehensive test bench.

[0019] The remote calibration method of the hardness unit of the integrated test bench as described above, wherein preferably, the test head of the hardness measuring unit applies pre-pressure and full pressure to the high-precision calibration module and the low-precision calibration module of the remote calibration device in sequence, and in the process of applying the pre-pressure and the full pressure, the evaluation results of each metrological calibration index are obtained by using the detection results of the pressure sensor and / or the timing sensor, which specifically includes:

[0020] Use the test head of the hardness measuring unit to apply a pre-pressure of 1s to the test hole of the remote calibration device, and in the process of applying the pre-pressure, use the pressure sensor to collect the pre-pressure data, and use the timing sensor to collect the pre-pressure time data; when the average value of the pre-pressure is within the range of 0.09 N -0.11 N, the pre-pressure calibration index is qualified, otherwise the pre-pressure calibration index is unqualified, and a measurement result notice is issued; when the pre-pressure time is within the range of 1.0s-2.0s, the pre-pressure time calibration index is qualified, otherwise the pre-pressure time calibration index is unqualified, and a measurement result notice is issued;

[0021] Use the test head of the hardness measuring unit to apply full pressure for 15s to the test hole of the remote calibration device. In the process of applying full pressure, use the pressure sensor to collect full pressure data, and use the timing sensor to collect compression time data. When the average value of the full pressure is within the range of 2.91N-2.97N, the full pressure load calibration index is qualified, otherwise the full pressure load calibration index is unqualified, and a measurement result notice is issued; when the full pressure time is within the range of 14s-16s, the full pressure time index is qualified, otherwise the full pressure time index is unqualified, and a measurement result notice is issued;

[0022] According to the difference between the displacement of the remote calibration device measured by the hardness measurement unit and the calibration value, it is judged whether the displacement index verification is qualified. If the difference between the displacement of the remote calibration device measured by the hardness measurement unit and the calibration value is within the range of -0.02mm-0.02mm, the displacement calibration index is qualified, otherwise the displacement calibration index is unqualified;

[0023] Determine whether the calibration is completed. If not, return to the calibration step of applying pre-pressure and full pressure.

[0024] In the remote calibration method of the hardness unit of the integrated test bench as described above, preferably, the evaluation results of each metrological calibration index and the corresponding test results are transmitted to the cloud server, specifically including:

[0025] After the calibration is completed, determine whether the network is normal;

[0026] If the network is not working properly, the calibration data will be stored locally;

[0027] If the network is normal, the calibration data is transmitted to the cloud server through the network;

[0028] Determine whether the calibration data is uploaded successfully;

[0029] If the upload fails, the calibration data will be stored locally.

[0030] The evaluation results of each metrological calibration index transmitted to the cloud server and the corresponding test results are checked to obtain the remote calibration results of the hardness unit of the comprehensive test bench, specifically including:

[0031] After the calibration data is successfully uploaded, log in to the cloud server and check the calibration results according to the calibration data to determine whether they meet the measurement requirements;

[0032] If the measurement requirements are met, a certificate will be issued;

[0033] If the measurement requirements are not met, a measurement result notification will be issued.

[0034] The present invention provides a remote calibration device and method for a hardness unit of a comprehensive test bench. During the pressure process, the upper support seat will be compressed downward by a guide rail and a spring. The pre-pressure and the total pressure can be detected by a pressure sensor. The compression time of the upper support seat can be detected by a timing sensor, so as to analyze whether the metrological calibration indicators are qualified. The detection results of the pressure sensor and the timing sensor are uploaded to a cloud server through a 5G communication module for viewing by a metrological verification agency, thereby realizing remote calibration of the hardness unit. It can solve metrological problems such as remote value traceability of on-site detection equipment, instant application of traceability results, and remote status monitoring. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] In order to make the purpose, technical solutions and advantages of the present invention more clear, the present invention will be further described below with reference to the accompanying drawings, in which:

[0036] Figure 1 A schematic structural diagram of an embodiment of a high-precision calibration gauge block and a low-precision calibration gauge block of a remote calibration device for a hardness unit of a comprehensive test bench provided by the present invention;

[0037] Figure 2 A flow chart of an embodiment of a remote calibration method for a hardness unit of a comprehensive test bench provided by the present invention;

[0038] Figure 3 A logic diagram of an embodiment of a remote calibration method for a hardness unit of an integrated test bench provided by the present invention.

[0039] Explanation of the accompanying drawings: 1-lower support seat, 2-upper support seat, 3-spring, 4-guide rail, 5-pressure sensor, 6-timing sensor, 7-test hole. DETAILED DESCRIPTION

[0040] Various exemplary embodiments of the present disclosure will now be described in detail with reference to the accompanying drawings. The description of the exemplary embodiments is merely illustrative and is in no way intended to limit the present disclosure and its application or use. The present disclosure can be implemented in many different forms and is not limited to the embodiments described herein. These embodiments are provided to make the present disclosure thorough and complete and to fully express the scope of the present disclosure to those skilled in the art. It should be noted that unless otherwise specifically stated, the relative arrangement of the components and steps, the composition of the materials, the numerical expressions and the numerical values ​​set forth in these embodiments should be interpreted as being merely exemplary and not as limiting.

[0041] The words "first", "second" and similar words used in this disclosure do not indicate any order, quantity or importance, but are only used to distinguish different parts. The words "include" or "comprises" and similar words mean that the elements before the word include the elements listed after the word, and do not exclude the possibility of including other elements. "Up", "down" and the like are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0042] In the present disclosure, when a specific component is described as being located between a first component and a second component, there may or may not be an intermediate component between the specific component and the first component or the second component. When a specific component is described as being connected to other components, the specific component may be directly connected to the other components without an intermediate component, or may not be directly connected to the other components but have an intermediate component.

[0043] All terms (including technical terms or scientific terms) used in the present disclosure have the same meanings as those understood by ordinary technicians in the field to which the present disclosure belongs, unless otherwise specifically defined. It should also be understood that terms defined in general dictionaries, such as general dictionaries, should be interpreted as having meanings consistent with their meanings in the context of the relevant technology, and should not be interpreted in an idealized or extremely formal sense, unless explicitly defined herein.

[0044] Technologies, methods, and equipment known to ordinary technicians in the relevant art may not be discussed in detail, but where appropriate, the technologies, methods, and equipment should be considered part of the specification.

[0045] like Figure 1 As shown, the remote calibration device of the hardness unit of the comprehensive test bench provided in this embodiment specifically includes: a high-precision calibration block and a low-precision calibration block, the high-precision calibration block and the low-precision calibration block respectively include a lower support seat 1 and an upper support seat 2 arranged from bottom to top, the lower support seat 1 and the upper support seat 2 are provided with a spring 3 penetrating along the vertical direction, the upper support seat 2 is slidably embedded in the lower support seat 1, and guide rails 4 are provided at corresponding positions on the outer side walls of the upper support seat 2 and the inner side walls of the lower support seat 1 along the vertical direction, and the upper support seat 2 can slide along the guide rails 4, the high-precision calibration block and the low-precision calibration block also respectively include a pressure sensor 5, a timing sensor 6 and a 5G communication module (not shown), the 5G communication module is connected to the corresponding pressure sensor 5 and the timing sensor 6, and is used to upload the detection results of the pressure sensor 5 and / or the timing sensor 6 to the cloud server.

[0046] The dimensions of the high-precision calibration block and the low-precision calibration block are: 2 cm in length, 1 cm in width, and 1.5 cm in height. In actual application, the remote calibration device of the hardness unit of the comprehensive test bench can be mailed to the site for on-site operators to perform calibration operations. The height of the high-precision calibration block in a fully compressed state is 0.98 cm-1.02 cm, for example, 1 cm; the height of the low-precision calibration block in a fully compressed state is 0.78 cm-0.82 cm, for example, 0.8 cm.

[0047] The remote calibration device of the hardness unit of the comprehensive test bench of the present invention is composed of two blocks, a high-precision calibration block and a low-precision calibration block. Each block is composed of two parts, a lower support seat 1 and an upper support seat 2. A spring 3 is used as a support between the lower support seat 1 and the upper support seat 2, and the upper and lower sliding compression function of the upper support seat 2 is realized through the guide rail 4. During the remote calibration process of the hardness test unit, the test head of the hardness test unit is pressed on the upper support seat 2 and a certain pressure is applied. At this time, the upper support seat 2 will be compressed downward through the guide rail 4 and the spring 3 during the compression process.

[0048] The pre-pressure and total pressure can be detected by the pressure sensor 5, wherein the pre-pressure refers to the continuous and stable force applied to the test sample by the force-applying mechanism of the instrument through the test head within a certain period of time before the test sample is subjected to pressure; the compression time of the upper support seat 2 can be recorded by the timing sensor 6.

[0049] Furthermore, the high-precision calibration block and the low-precision calibration block also include test holes 7 , respectively, which are vertically penetrated in the lower support seat 1 and the upper support seat 2 , and the spring 3 is covered on the outside of the corresponding test hole 7 .

[0050] Specifically, during the remote calibration process, the high-precision calibration block or the low-precision calibration block is located on the hardness unit test bench, and the test hole 7 is aligned with the pressure test head of the hardness unit test bench, and the diameter of the test hole 7 is smaller than the diameter of the pressure test head, wherein a screw is provided in the test hole 7 for fixing.

[0051] Furthermore, a groove is provided on the top of the lower support seat 1 corresponding to the high-precision calibration block and the low-precision calibration block, and the upper support seat 2 can slide downward along the guide rail 4 into the groove of the lower support seat 1.

[0052] Furthermore, the pressure sensor 5 and the timing sensor 6 corresponding to the high-precision calibration block and the low-precision calibration block are arranged in the corresponding lower support seat 1. The timing sensor 6 includes an infrared timing sensor. It should be noted that the present invention does not specifically limit the type, model, installation position and installation method of the pressure sensor 5 and the timing sensor 6.

[0053] The remote calibration device for the hardness unit of the comprehensive test bench provided in the embodiment of the present invention is that the upper support seat will be compressed downward by the guide rail and the spring during the pressure process, the pre-pressure and the total pressure can be detected by the pressure sensor, and the compression time of the upper support seat can be detected by the timing sensor, so as to analyze whether the metrological calibration indicators are qualified; the detection results of the pressure sensor and the timing sensor are uploaded to the cloud server through the 5G communication module for viewing by the metrological verification agency, so as to realize the remote calibration of the hardness unit, which can solve the metrological problems such as remote value traceability of the detection equipment at the work site, instant application of the traceability results and remote status monitoring.

[0054] like Figure 2 and Figure 3 As shown, the remote calibration method of the hardness unit of the comprehensive test bench provided in this embodiment includes the following steps in actual execution:

[0055] Step S1, start the hardness measurement unit and the remote calibration device.

[0056] Step S2, the test head of the hardness measurement unit applies pre-pressure and full pressure to the high-precision calibration module and the low-precision calibration module of the remote calibration device in turn, and in the process of applying the pre-pressure and full pressure, the detection results of the pressure sensor 5 and / or the timing sensor 6 are used to obtain the evaluation results of each metrological calibration index.

[0057] Specifically, the two gauge blocks of the high-precision calibration module and the low-precision calibration module of the remote calibration device are placed on the hardness unit test bench respectively, so that the test head is located above the test hole of the remote calibration device, and the remote calibration device is tested according to the instrument operating procedures. The metrological calibration indicators include pre-pressure, pre-pressure time, full pressure load, full pressure time and displacement. Only when all metrological calibration indicators are qualified can the hardness test unit be qualified. In one embodiment of the remote calibration device and method of the hardness unit of the comprehensive test bench of the present invention, the step S2 can specifically include:

[0058] Step S21, use the test head of the hardness measurement unit to apply a pre-pressure of 1s to the test hole 7 of the remote calibration device, and in the process of applying the pre-pressure, use the pressure sensor 5 to collect pre-pressure data, and use the timing sensor 6 to collect pre-pressure time data; when the average value of the pre-pressure is within the range of 0.09N-0.11N, the pre-pressure calibration index is qualified, otherwise the pre-pressure calibration index is unqualified, and a measurement result notice is issued; when the pre-pressure time is within the range of 1.0s-2.0s, the pre-pressure time calibration index is qualified, otherwise the pre-pressure time calibration index is unqualified, and a measurement result notice is issued.

[0059] Step S22, use the test head of the hardness measurement unit to apply a full pressure of 15s to the test hole 7 of the remote calibration device, and in the process of applying the full pressure, use the pressure sensor 5 to collect the full pressure data, and use the timing sensor 6 to collect the compression time data. When the average value of the full pressure is within the range of 2.91N-2.97N, the full pressure load calibration index is qualified, otherwise the full pressure load calibration index is unqualified, and a measurement result notice is issued; when the full pressure time is within the range of 14s-16s, the full pressure time index is qualified, otherwise the full pressure time index is unqualified, and a measurement result notice is issued;

[0060] Step S23, judging whether the displacement index verification is qualified according to the difference between the displacement of the remote calibration device measured by the hardness measurement unit and the calibration value; if the difference between the displacement of the remote calibration device measured by the hardness measurement unit and the calibration value is within the range of -0.02mm-0.02mm, the displacement calibration index is qualified; otherwise, the displacement calibration index is unqualified.

[0061] Step S24, determine whether the calibration is completed. If not, return to the calibration step of applying pre-pressure and full pressure (ie, return to step S21).

[0062] Step S3: Transmit the evaluation results of each metrological calibration indicator and the corresponding test results to the cloud server.

[0063] In one embodiment of the remote calibration device and method of the hardness unit of the integrated test bench of the present invention, the step S3 may specifically include:

[0064] Step S31: After the calibration is completed, determine whether the network is normal.

[0065] Step S32: If the network is abnormal, the calibration data is stored locally.

[0066] Step S33: If the network is normal, the calibration data is transmitted to the cloud server via the network.

[0067] Step S34: determine whether the calibration data is uploaded successfully.

[0068] Step S35: If the upload is unsuccessful, the calibration data is stored locally.

[0069] The present invention uses a built-in 5G communication module, wireless network and 5G technology to collect data and transmit the data to a cloud server. To prevent data loss or upload interruption due to network instability, measurement and calibration data can be stored locally. Once the network conditions are restored, data upload can continue, thereby ensuring the security and integrity of the data.

[0070] Step S4: Verify the evaluation results of each metrological calibration index and the corresponding test results transmitted to the cloud server to obtain the remote calibration results of the hardness unit of the comprehensive test bench.

[0071] In one embodiment of the remote calibration device and method of the hardness unit of the integrated test bench of the present invention, the step S4 may specifically include:

[0072] Step S41: After the calibration data is successfully uploaded, log in to the cloud server and check the calibration results according to the calibration data to determine whether they meet the measurement requirements.

[0073] Step S42: If the measurement requirements are met, a certificate is issued.

[0074] Step S43: If the measurement requirements are not met, a measurement result notification is issued.

[0075] Metrology personnel of metrology and verification institutions can access the cloud server through PC and issue corresponding reports or notifications based on the calibration results, thus realizing remote metrology and calibration.

[0076] The remote calibration device and method for the hardness unit of the comprehensive test bench provided in the embodiment of the present invention are as follows: the upper support seat will be compressed downward by the guide rail and the spring during the pressure process; the pre-pressure and the total pressure can be detected by the pressure sensor; the compression time of the upper support seat can be detected by the timing sensor, so as to analyze whether the metrological calibration indicators are qualified; the detection results of the pressure sensor and the timing sensor are uploaded to the cloud server through the 5G communication module for viewing by the metrological verification agency, so as to realize the remote calibration of the hardness unit, which can solve the metrological problems such as remote value traceability of the detection equipment at the work site, the immediate application of the traceability results and remote status monitoring.

[0077] So far, various embodiments of the present disclosure have been described in detail. In order to avoid obscuring the concept of the present disclosure, some details known in the art are not described. Based on the above description, those skilled in the art can fully understand how to implement the technical solution disclosed here.

[0078] Although some specific embodiments of the present disclosure have been described in detail by way of examples, it should be understood by those skilled in the art that the above examples are for illustration only and are not intended to limit the scope of the present disclosure. It should be understood by those skilled in the art that the above embodiments may be modified or some technical features may be replaced by equivalents without departing from the scope and spirit of the present disclosure. The scope of the present disclosure is defined by the appended claims.

Claims

1. A remote calibration device for a hardness unit of a comprehensive test bench, characterized in that: include: A high-precision calibration block and a low-precision calibration block, the high-precision calibration block and the low-precision calibration block respectively include a lower support seat and an upper support seat arranged from bottom to top, the lower support seat and the upper support seat are provided with springs penetrating in the vertical direction, the upper support seat can be slidably embedded in the lower support seat, and guide rails are provided at corresponding positions on the two side outer walls of the upper support seat and the two side inner walls of the lower support seat in the vertical direction, and the upper support seat can slide along the guide rails, the high-precision calibration block and the low-precision calibration block also respectively include a pressure sensor, a timing sensor and a 5G communication module, the 5G communication module is connected to the corresponding pressure sensor and the timing sensor, and is used to upload the detection results of the pressure sensor and / or the timing sensor to the cloud server.

2. The remote calibration device for the hardness unit of the integrated test bench according to claim 1, characterized in that: The height of the high-precision calibration block in a fully compressed state is 0.98 cm-1.02 cm; the height of the low-precision calibration block in a fully compressed state is 0.78 cm-0.82 cm.

3. The remote calibration device for the hardness unit of the integrated test bench according to claim 1, characterized in that: The high-precision calibration gauge block and the low-precision calibration gauge block further include test holes, respectively, which are vertically penetrated in the lower support seat and the upper support seat, and the spring is covered on the outside of the corresponding test hole.

4. The remote calibration device for the hardness unit of the integrated test bench according to claim 3, characterized in that: During the remote calibration process, the high-precision calibration block or the low-precision calibration block is located on the hardness unit test bench, and the test hole is aligned with the pressure test head of the hardness unit test bench, and the diameter of the test hole is smaller than the diameter of the pressure test head.

5. The remote calibration device for the hardness unit of the integrated test bench according to claim 1, characterized in that: The top of the lower support seat corresponding to the high-precision calibration gauge block and the low-precision calibration gauge block is provided with a groove, and the upper support seat can slide downward along the guide rail into the groove of the lower support seat.

6. The remote calibration device for the hardness unit of the integrated test bench according to claim 1, characterized in that: The pressure sensor and the timing sensor corresponding to the high-precision calibration block and the low-precision calibration block are arranged in the corresponding lower support seat.

7. The remote calibration device for the hardness unit of the integrated test bench according to claim 1, characterized in that: The timing sensor comprises an infrared timing sensor.

8. A remote calibration method for a hardness unit of a comprehensive test bench using the device according to any one of claims 1 to 7, characterized in that: include: Start the hardness measuring unit and remote calibration device; The test head of the hardness measurement unit applies pre-pressure and full pressure to the high-precision calibration module and the low-precision calibration module of the remote calibration device in turn, and in the process of applying the pre-pressure and the full pressure, the detection results of the pressure sensor and / or the timing sensor are used to obtain the evaluation results of each metrological calibration index, and the metrological calibration index includes pre-pressure, pre-pressure time, full pressure load, full pressure time and displacement; Transmit the evaluation results of each metrological calibration index and the corresponding test results to the cloud server; The evaluation results of each metrological calibration index transmitted to the cloud server and the corresponding test results are checked to obtain the remote calibration result of the hardness unit of the comprehensive test bench.

9. The remote calibration method of the hardness unit of the integrated test bench according to claim 8, characterized in that: The test head of the hardness measurement unit applies pre-pressure and full pressure to the high-precision calibration module and the low-precision calibration module of the remote calibration device in turn, and in the process of applying the pre-pressure and the full pressure, the evaluation results of each metrological calibration index are obtained by using the detection results of the pressure sensor and / or the timing sensor, which specifically includes: Use the test head of the hardness measuring unit to apply a pre-pressure of 1s to the test hole of the remote calibration device, and in the process of applying the pre-pressure, use the pressure sensor to collect the pre-pressure data, and use the timing sensor to collect the pre-pressure time data; when the average value of the pre-pressure is within the range of 0.09 N -0.11 N, the pre-pressure calibration index is qualified, otherwise the pre-pressure calibration index is unqualified, and a measurement result notice is issued; when the pre-pressure time is within the range of 1.0s-2.0s, the pre-pressure time calibration index is qualified, otherwise the pre-pressure time calibration index is unqualified, and a measurement result notice is issued; Use the test head of the hardness measuring unit to apply full pressure for 15s to the test hole of the remote calibration device. In the process of applying full pressure, use the pressure sensor to collect full pressure data, and use the timing sensor to collect compression time data. When the average value of the full pressure is within the range of 2.91N-2.97N, the full pressure load calibration index is qualified, otherwise the full pressure load calibration index is unqualified, and a measurement result notice is issued; when the full pressure time is within the range of 14s-16s, the full pressure time index is qualified, otherwise the full pressure time index is unqualified, and a measurement result notice is issued; According to the difference between the displacement of the remote calibration device measured by the hardness measurement unit and the calibration value, it is judged whether the displacement index verification is qualified. If the difference between the displacement of the remote calibration device measured by the hardness measurement unit and the calibration value is within the range of -0.02mm-0.02mm, the displacement calibration index is qualified, otherwise the displacement calibration index is unqualified; Determine whether the calibration is completed. If not, return to the calibration step of applying pre-pressure and full pressure.

10. The remote calibration method of the hardness unit of the integrated test bench according to claim 8, characterized in that: The step of transmitting the evaluation results of each metrological calibration indicator and the corresponding test results to the cloud server specifically includes: After the calibration is completed, determine whether the network is normal; If the network is not working properly, the calibration data will be stored locally; If the network is normal, the calibration data is transmitted to the cloud server through the network; Determine whether the calibration data is uploaded successfully; If the upload fails, the calibration data will be stored locally. The evaluation results of each metrological calibration index transmitted to the cloud server and the corresponding test results are checked to obtain the remote calibration results of the hardness unit of the comprehensive test bench, specifically including: After the calibration data is successfully uploaded, log in to the cloud server and check the calibration results according to the calibration data to determine whether they meet the measurement requirements; If the measurement requirements are met, a certificate will be issued; If the measurement requirements are not met, a measurement result notification will be issued.

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