Material and component performance testing method based on remote monitoring

Abstract

The invention provides a material and component performance testing method based on remote monitoring, which comprises the following steps: before testing, a control computer monitors internal environment data of a temperature change test box through sensor equipment, controls a box door of the temperature change test box to be unlocked based on the internal environment data, and prompts a tester to place a test object; a tester enters the temperature change test box and places a test object, and the control computer monitors the entry and exit of the tester through the sensor equipment and controls the door of the temperature change test box to be locked; in the test process, the control computer controls the temperature change test box to test the performance of the test object according to a preset test scheme, and the test process is automatically recorded based on the block chain; after the test is finished, the control computer monitors the internal environment data of the temperature change test box through the sensor equipment, controls the box door of the temperature change test box to be unlocked based on the internal environment data, and prompts a tester to take out a test object, so that the test efficiency can be improved, and potential safety hazards can be eliminated.

Description

Technical Field

[0001] The present invention relates to the technical field of performance testing, and particularly to a method for testing the performance of materials and components based on remote monitoring. Background Art

[0002] A temperature change test chamber, also known as a temperature variation test chamber, a rapid temperature change test chamber or a thermal shock test chamber, is a special device for simulating and testing the performance of materials, products or components under extreme temperature conditions. It is widely used in multiple industries such as aerospace, electronic appliances, automobile manufacturing, building materials, etc. to evaluate the durability and reliability of samples under different temperature environments. The temperature change test chamber supports rapid heating and cooling rates, and some models can achieve a temperature change rate of several degrees or even dozens of degrees per minute to simulate the severe temperature fluctuations that may be encountered in actual use. The internal space of a large temperature change test chamber is larger, enabling batch testing of materials or components. Test personnel can enter the temperature change test chamber to place or remove the materials or components to be tested. The following problems currently exist in such walk-in temperature change test chambers: 1. During the test process, the inside of the temperature change test chamber is in a sealed state. Some organic materials in the materials or components to be tested may undergo pyrolysis or decomposition at high temperatures, generating gases harmful to the human body. If test personnel directly enter, it may have a negative impact on their physical health; 2. There is no supervision and control mechanism for the entry and exit of test personnel, or it is only confirmed through manual registration. There may be a situation where test personnel are accidentally locked inside the temperature change test chamber, posing a safety hazard; 3. Relevant data generated during the test, changes in the materials or components to be tested, etc. are all manually recorded by humans, with low efficiency and prone to errors. Summary of the Invention

[0003] The purpose of the present invention is to provide a method for testing the performance of materials and components based on remote monitoring to solve the technical problems that the existing temperature change test chamber cannot achieve internal environment monitoring, personnel entry and exit monitoring, and automatic recording of test data.

[0004] To achieve the above purpose, the technical solution adopted by the present invention is: A method for testing the performance of materials and components based on remote monitoring, the method comprising: Before the test starts, the control computer monitors the internal environment data of the temperature change test chamber through the sensor device, unlocks the door of the temperature change test chamber based on the internal environment data, and prompts the test personnel to place the test object, where the test object is a material or a component; The control computer monitors the entry and exit of test personnel into and out of the temperature change test chamber through the sensor device to control the locking of the door of the temperature change test chamber; During the test, the control computer controls the temperature change test chamber to test the performance of the object under test according to a preset test plan, and automatically records the test process based on the blockchain; After the test, the control computer monitors the internal environment data of the temperature change test chamber through the sensor device, controls the unlocking of the chamber door of the temperature change test chamber based on the internal environment data, and prompts the tester to take out the object under test.

[0005] Furthermore, the control computer monitors the internal environment data of the temperature change test chamber through the sensor device, and controls the unlocking of the chamber door of the temperature change test chamber based on the internal environment data, specifically including: Monitoring the internal temperature data of the temperature change test chamber through a temperature sensor; Monitoring the concentration data of harmful gases inside the temperature test chamber through a gas concentration sensor; Comparing the internal temperature of the temperature change test chamber with a preset temperature range, and comparing the concentration of harmful gases inside the temperature change test chamber with a preset concentration threshold; If the internal temperature of the temperature change test chamber is within the preset temperature range and the concentration of harmful gases inside is lower than the preset concentration threshold, then control the unlocking of the chamber door of the temperature change test chamber.

[0006] Furthermore, the control computer monitors the entry and exit of the tester through the sensor device and controls the locking of the chamber door of the temperature change test chamber, specifically including the following operations: The tester carries a Bluetooth positioning beacon and the object under test, opens the chamber door of the temperature change test chamber and enters the temperature change test chamber; The control computer monitors the opening state of the chamber door of the temperature change test chamber through a displacement sensor, and when the opening of the chamber door is detected, collects the video of the chamber door and the interior of the temperature change test chamber through the first camera; Set at least two Bluetooth base stations around the temperature change test chamber, and the control computer obtains the communication signal strength between the Bluetooth base stations and the Bluetooth positioning beacon and calculates the azimuth and distance of the Bluetooth positioning beacon relative to the Bluetooth base stations; The control computer analyzes the video of the chamber door and the interior of the temperature change test chamber through a video recognition model to obtain an image analysis result; The control computer analyzes the entry and exit situation of the tester according to the azimuth and distance of the Bluetooth positioning beacon relative to the Bluetooth base stations and the image analysis result, and controls the locking of the chamber door of the temperature change test chamber according to the entry and exit situation of the tester.

[0007] Further, the Bluetooth positioning beacon includes a wristband, a housing is arranged on the wristband, a Bluetooth communication module, a light-emitting module and a power supply are arranged in the housing, the power supply is used to supply power to the Bluetooth communication module, the Bluetooth communication module is used to perform wireless communication with a Bluetooth base station, the Bluetooth communication module is connected to the light-emitting module through a control circuit, the Bluetooth communication module is further used to communicate with the tester's mobile terminal, obtain the tester's identity information, and control the light-emitting module to emit light according to the preset light-emitting rule according to the tester's identity information, and the preset light-emitting rule is used to represent the light-emitting mode of the light-emitting module corresponding to testers with different identities.

[0008] Further, the control computer analyzes the video of the temperature change test chamber door and the interior through a video recognition model, which specifically includes the following operations: The video of the temperature change test chamber door and the interior is sliced into a series of consecutive sub-images by frame; Identify and label the areas with testers in the sub-images; Identify and label the light-emitting areas in the areas with testers; Obtain the test plan, determine the tester's identity information according to the test plan, and obtain the corresponding preset light-emitting rule according to the tester's identity information; Perform semantic recognition on the labeled light-emitting areas in a series of consecutive sub-images, and judge whether the light-emitting mode in the light-emitting areas of the series of consecutive sub-images does not conform to the preset light-emitting rule according to the semantic recognition result. If so, output an abnormal alarm message.

[0009] Further, the control computer automatically records the test process based on the blockchain, which specifically includes the following operations: Obtain the test plan, aggregate the test plan and test data into test process data, and perform a hash operation on the test process data to obtain a first operation result; Aggregate the sensor monitoring data and the video of the temperature change test chamber door and the interior into remote monitoring data, and perform a hash operation on the remote monitoring data to obtain a second operation result; Encrypt the test process data and the remote monitoring data to obtain encrypted data, save the encrypted data to the distributed file system, and obtain the storage path of the encrypted data in the distributed file system; Write the first operation result, the second operation result and the storage path into the block of the blockchain.

[0010] Further, the encryption of the test process data and the remote monitoring data specifically includes the following operations: Obtain the tester's identity information according to the test plan; Obtain a preset vocabulary, where the preset vocabulary contains several word elements, initialize an identity feature vector, the identity feature vector contains several vector elements, and each vector element corresponds to a word element in the preset vocabulary; Parse the words included in the tester's identity information, and assign values to all vector elements in the identity feature vector according to the parsing results; Combine the identity feature vector after the assignment with the secret key according to a preset combination rule to obtain a combined secret key; Encrypt the test process data and remote monitoring data with the combined secret key.

[0011] Furthermore, the remote monitoring data further includes a video of the test object during the test process, and the video of the test object is collected by a second camera disposed inside the temperature change test chamber.

[0012] Furthermore, a groove is provided on the inner side wall of the temperature change test chamber, a transparent heat insulation cover is provided on the groove, an electric pan-tilt is provided in the groove, and the second camera is provided on the electric pan-tilt.

[0013] Compared with the prior art, the beneficial effects of the present invention are: 1. Before and after the test starts, the control computer monitors the internal environment of the temperature change test chamber through the sensor device, and only controls the unlocking of the door of the temperature change test chamber after determining that the internal environment of the temperature change test chamber is safe, and prompts the tester to enter to place or take out the test object, so as to prevent the test environment from having a negative impact on the tester's body; 2. The method monitors the situation of the tester entering and leaving the temperature change test chamber through the sensor device by the control computer and controls the door of the temperature change test chamber to be locked, so as to prevent the situation of accidentally locking the tester in the temperature change test chamber, and can effectively avoid the occurrence of such safety accidents; 3. During the test process, the method controls the temperature change test chamber to create a high temperature or low temperature environment to test the performance of the test object by the control computer according to a preset test plan, and automatically records the test process based on the blockchain, so that the method can control the temperature more accurately to fully test the relevant performance of materials or components, and realizes the storage of test data based on the characteristics of blockchain data that are difficult to tamper with, transparent and public, effectively preventing test data fraud. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the following drawings are only the preferred embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0015] Figure 1 It is a schematic diagram of the overall process of a method for testing the performance of materials and components based on remote monitoring provided by an embodiment of the present invention.

[0016] Figure 2 It is a schematic diagram of the circuit principle of a Bluetooth positioning beacon provided by an embodiment of the present invention. Specific embodiments

[0017] The principles and features of the present invention will be described below with reference to the accompanying drawings. The listed embodiments are only used to explain the present invention and are not used to limit the scope of the present invention.

[0018] This embodiment provides a method for testing the performance of materials and components based on remote monitoring. The method is applicable to a walk-in temperature change test chamber and is used to solve the technical problems that the existing walk-in temperature change test chamber cannot achieve internal environment monitoring, personnel entry and exit monitoring, and automatic recording of test data.

[0019] Refer to Figure 1 , the method includes the following steps: S101. Before the test starts, the control computer monitors the internal environment data of the temperature change test chamber through the sensor device, controls the unlocking of the test chamber door based on the internal environment data, and prompts the test personnel to place the test object, where the test object is a material or a component.

[0020] Exemplarily, an electric control lock is installed on the door of the temperature change test chamber, and the electric control lock is connected to the control computer through a control circuit, so that the control computer can control the locking and unlocking of the door.

[0021] In this embodiment, the control computer analyzes the internal environment data to determine whether the internal environment of the temperature change test chamber is safe for the test personnel. Only when the environment is safe, the control computer controls the unlocking of the test chamber door and at the same time prompts the test personnel to enter, so as to prevent the internal environment of the temperature change test chamber from harming the test personnel.

[0022] S102. The test personnel enter the temperature change test chamber and place the test object. After the placement is completed, they leave the temperature change test chamber. The control computer monitors the situation of the test personnel entering and leaving the temperature change test chamber through the sensor device and controls the locking of the test chamber door.

[0023] S103. During the test, the control computer controls the temperature change test chamber to test the performance of the test object according to the preset test plan, and automatically records the test process based on the blockchain.

[0024] Exemplarily, the content of the test plan includes the identity information of the tester, the basic information of the test object, the test duration, and the temperature environment created by the temperature change test chamber at different test time nodes. The control computer can achieve precise and automatic control of the entire test process according to the preset test plan content, reduce manual intervention, and reduce the workload of the tester. The content of the test plan is formulated by relevant staff and input into the control computer before the test starts. When the test starts, the control computer can control the temperature change test chamber to create a high-temperature or low-temperature environment to test the test object according to the preset test plan.

[0025] S104. After the test is completed, the control computer monitors the internal environment data of the temperature change test chamber through the sensor device, unlocks the door of the temperature change test chamber based on the internal environment data, and prompts the tester to take out the test object.

[0026] In the method provided in this embodiment, before and after the test starts, the control computer monitors whether the internal environment of the temperature change test chamber is suitable for the tester to enter through the sensor device, so as to control the unlocking of the door of the temperature change test chamber, thereby preventing the internal environment of the temperature change test chamber from having a negative impact on the tester's body. During the test process, the control computer can automatically control the temperature change test chamber to automatically perform the temperature change test according to the preset test plan, so as to fully test the relevant performance of the material or component, and automatically record the test process based on the blockchain, effectively preventing the occurrence of false test data or test conclusions.

[0027] As a possible implementation manner, the control computer monitors the internal environment data of the temperature change test chamber through the sensor device, and controls the unlocking of the door of the temperature change test chamber based on the internal environment data, specifically including: S201. Monitor the internal temperature data of the temperature change test chamber through the temperature sensor.

[0028] S202. Monitor the concentration data of harmful gases inside the temperature test chamber through the gas concentration sensor.

[0029] S203. Compare the internal temperature of the temperature change test chamber with the preset temperature range, and compare the concentration of harmful gases inside the temperature change test chamber with the preset concentration threshold.

[0030] S204. If the internal temperature of the temperature change test chamber is within the preset temperature range and the concentration of harmful gases inside is lower than the preset concentration threshold, then control the unlocking of the door of the temperature change test chamber.

[0031] In this embodiment, the control computer determines whether the current internal environment of the temperature change test chamber is suitable for testers to enter from two aspects: the internal environment temperature and the harmful gas concentration of the temperature change test chamber. If the internal environment temperature is neither lower than the minimum temperature threshold nor higher than the maximum temperature threshold, and at the same time the harmful gas concentration is lower than the preset concentration threshold, it is considered that it is relatively safe for the tester to enter the temperature change test chamber at this time, and the control computer controls the unlocking of the chamber door of the temperature change test chamber. Exemplarily, if the internal temperature of the temperature change test chamber is too high or too low after the test, the control computer can control the temperature change test chamber to cool or heat the inside to control its internal temperature within a reasonable range. If the harmful gas concentration is higher than the preset concentration threshold, the control computer can control the temperature change test chamber to turn on the exhaust fan to discharge the internal harmful gas.

[0032] As another possible embodiment, the control computer monitors the entry and exit of the tester through the sensor device and controls the locking of the chamber door of the temperature change test chamber, which specifically includes the following operations: S301. The tester carries a Bluetooth positioning beacon and the test object, opens the chamber door of the temperature change test chamber and enters the temperature change test chamber.

[0033] S302. The control computer monitors the opening state of the chamber door of the temperature change test chamber through the displacement sensor. When the opening of the chamber door is detected, the control computer captures the video of the chamber door and the inside of the temperature change test chamber through the first camera.

[0034] Exemplarily, the first camera can be set opposite to the chamber door of the temperature change test chamber. When the chamber door of the temperature change test chamber is opened, the first camera can also capture the internal image of the temperature change test chamber at the same time.

[0035] S303. At least two Bluetooth base stations are set around the temperature change test chamber. The control computer obtains the communication signal strength between the Bluetooth base station and the Bluetooth positioning beacon and calculates the azimuth and distance of the Bluetooth positioning beacon relative to the Bluetooth base station.

[0036] In this embodiment, the position of the tester relative to the temperature change test chamber is analyzed through Bluetooth positioning technology. Bluetooth positioning technology uses wireless communication between Bluetooth devices to determine the position of a target and is widely used in fields such as Indoor Positioning Systems (IPS), asset tracking, navigation, and Internet of Things (IoT) applications. Bluetooth positioning technology can calculate the position of one device by receiving data such as Received Signal Strength Indication (RSSI), Angle of Arrival (AoA), Angle of Departure (AoD), and Round-Trip Time (RTT) that can be monitored during the communication process of multiple Bluetooth devices. That is to say, by communicating between a Bluetooth base station and a Bluetooth positioning beacon carried by the tester and calculating the relevant data, the position of the Bluetooth positioning beacon relative to the Bluetooth base station can be determined. Combining with the specific position of the Bluetooth base station around the temperature change test chamber, the position of the tester relative to the temperature change test chamber can be determined, and then it can be judged whether the tester enters the temperature change test chamber.

[0037] S304. The control computer analyzes the video of the door and the interior of the temperature change test chamber through a video recognition model to obtain an image analysis result.

[0038] In this embodiment, the video recognition model is obtained by training a standard neural network model with labeled sample images. The video recognition model is used to recognize the video images of the door and the interior of the temperature change test chamber to judge whether the tester is inside the temperature change test chamber according to the content of the video images.

[0039] S305. The control computer analyzes the entry and exit situation of the tester based on the orientation and distance of the Bluetooth positioning beacon relative to the Bluetooth base station and the image analysis result, and controls the locking of the door of the temperature change test chamber according to the entry and exit situation of the tester.

[0040] In this embodiment, by combining Bluetooth positioning and monitoring video image recognition, whether the tester enters or leaves the interior of the temperature change test chamber is monitored. When it is recognized that the tester enters the interior of the temperature change test chamber, the control computer restricts the door of the temperature change test chamber to be in a state where it cannot be locked, that is, controls the electric control lock to be in an unlocked state, so as to avoid accidentally locking the tester inside the temperature change test chamber and prevent safety accidents from occurring.

[0041] On this basis, as a further possible embodiment, refer to Figure 2, the Bluetooth positioning beacon includes a wristband, a housing is arranged on the wristband, a Bluetooth communication module, a light-emitting module and a power supply are arranged in the housing, the power supply is used to supply power to the Bluetooth communication module, the Bluetooth communication module is used to perform wireless communication with a Bluetooth base station, the Bluetooth communication module is connected to the light-emitting module through a control circuit, the Bluetooth communication module is also used to communicate with the mobile terminal of the tester, obtain the identity information of the tester, and control the light-emitting module to emit light according to the preset light-emitting rule according to the identity information of the tester, and the preset light-emitting rule is used to represent the light-emitting mode of the light-emitting module corresponding to testers with different identities.

[0042] In this embodiment, the Bluetooth positioning beacon is in the form of a wearable device. The tester can wear it on the wrist through the wristband before the test for easy carrying. After the tester wears the Bluetooth positioning beacon, the Bluetooth positioning beacon will also communicate with the mobile terminal of the tester through the Bluetooth communication module. An APP that can cooperate with the Bluetooth positioning beacon is pre-installed on the mobile terminal of the tester. After the Bluetooth positioning beacon and the mobile terminal establish communication, the APP sends the identity information of the tester to the Bluetooth positioning beacon. The Bluetooth positioning beacon further controls the light-emitting module to emit light according to the preset light-emitting rule according to the identity information of the tester. It can be understood that the light-emitting modes of the light-emitting modules corresponding to testers with different identities are different, so that the identity of the tester can be verified according to the light-emitting mode of the light-emitting module subsequently.

[0043] Exemplarily, the light-emitting mode includes the number of times of flashing light emission and the color sequence of single-time flashing light emission. For example, the light-emitting mode corresponding to the identity information of a certain tester can be "flashing light emission three times, flashing blue light, green light, and red light in sequence from first to last". The time interval between each flashing light emission should be the same as the time interval between each frame of the video of the door and the interior of the temperature change test chamber, so that the light-emitting picture of the Bluetooth positioning beacon at the corresponding moment can be collected for each frame of the picture.

[0044] At the same time, the control computer analyzes the video of the door and the interior of the temperature change test chamber through a video recognition model, which specifically includes the following operations: S401: Split the video of the door and the interior of the temperature change test chamber into continuous multi-frame sub-images according to frames.

[0045] S402: Identify and mark the area where there is a tester in the sub-image.

[0046] S403: Identify and mark the light-emitting area in the area where there is a tester.

[0047] S404: Obtain the test plan, determine the identity information of the tester according to the test plan, and obtain the corresponding preset light-emitting rule according to the identity information of the tester.

[0048] S405. Perform semantic recognition on the labeled light-emitting regions in multiple consecutive frames of sub-images, and determine whether the light-emitting regions in the multiple consecutive frames of sub-images exhibit a light-emitting pattern that does not conform to the preset light-emitting rules according to the semantic recognition results. If so, output an abnormal alarm message.

[0049] In this embodiment, the control computer uses a video recognition model to recognize each frame of the images of the door and the interior of the temperature change test chamber, and determines whether the tester is carrying a Bluetooth positioning beacon. For example, when no light-emitting region is recognized in N consecutive frames starting from the first frame of sub-image, it indicates that the tester may not be carrying a Bluetooth positioning beacon. At this time, the control computer outputs an abnormal alarm message to prompt the tester to carry the Bluetooth positioning beacon in a timely manner. The abnormal alarm message can be sent to the tester's mobile terminal to achieve remote alarm. When the abnormal alarm message is not lifted, the control computer suspends the execution of the test plan until the video recognition model recognizes the light-emitting region again, thus effectively prompting the tester to carry the Bluetooth positioning beacon, and then the position of the tester can be accurately located to prevent mislocking events and eliminate potential safety hazards.

[0050] In this embodiment, if the semantic recognition result indicates that the light-emitting pattern of the light-emitting region in multiple consecutive frames of sub-images does not match the light-emitting pattern corresponding to the identity information of the tester recorded in the test plan, the control computer will also output an abnormal alarm message to prevent unauthorized substitution of the test by others without permission, thereby further standardizing the test process.

[0051] As another possible embodiment, the control computer automatically records the test process based on the blockchain, which specifically includes the following operations: S501. Obtain the test plan, summarize the test plan and test data into test process data, and perform a hash operation on the test process data to obtain a first operation result.

[0052] S502. Summarize the sensor monitoring data and the images of the door and the interior of the temperature change test chamber into remote monitoring data, and perform a hash operation on the remote monitoring data to obtain a second operation result.

[0053] S503. Encrypt the test process data and the remote monitoring data to obtain encrypted data, save the encrypted data to the distributed file system, and obtain the storage path of the encrypted data in the distributed file system.

[0054] S504. Write the first operation result, the second operation result, and the storage path into the block of the blockchain.

[0055] In this embodiment, hash operations are respectively performed on the test process data and the remote monitoring data to obtain corresponding operation results, so that the integrity of the test process data and the remote monitoring data can be verified based on the operation results in the subsequent process. The first operation result, the second operation result, and the storage path are saved through a blockchain, and the credibility and security of the data can be guaranteed based on the characteristic that blockchain data is difficult to tamper with.

[0056] In this embodiment, the blockchain can adopt a consortium blockchain. A consortium blockchain is a special type of blockchain, and its main feature is that participation is limited to specific organizations or entities. These participants are usually pre-determined and have certain permissions to manage and verify transactions. Exemplarily, in this embodiment, the nodes of the consortium blockchain include uploading nodes and verification nodes. Among them, the uploading nodes can update the blocks of the consortium blockchain and can view the content of each block. The uploading nodes can be a single control computer or a test department or a test institution. The verification nodes can be the test consignor or other departments of the enterprise, and the verification nodes can view the content of each block. All nodes participate in the consensus of the blockchain, thereby ensuring the credibility of the blockchain data.

[0057] On this basis, as a further optional embodiment, the encryption of the test process data and the remote monitoring data specifically includes the following operations: S601. Obtain the identity information of the tester according to the test plan.

[0058] S602. Obtain a preset vocabulary list. The preset vocabulary list contains several word elements, initialize the identity feature vector. The identity feature vector contains several vector elements, and each vector element corresponds to a word element in the preset vocabulary list.

[0059] S603. Analyze the words included in the tester's identity information, and assign values to all vector elements in the identity feature vector according to the analysis results.

[0060] S604. Combine the identity feature vector after the assignment with the secret key according to a preset combination rule to obtain a combined secret key.

[0061] S605. Encrypt the test process data and the remote monitoring data with the combined secret key.

[0062] This embodiment generates an identity feature vector based on the identity information of the tester, obtains a combined secret key by combining the identity feature vector with the secret key, and uses the combined secret key to encrypt the test process data and the remote monitoring data, thereby increasing the difficulty of data cracking and further enhancing data security.

[0063] As another alternative embodiment, the remote monitoring data further includes a video of the object under test during the test, and the video of the object under test is collected by a second camera disposed inside the temperature change test chamber.

[0064] Exemplarily, a groove is provided on the inner side wall of the temperature change test chamber, a transparent heat insulation cover is provided on the groove, an electric pan-tilt is provided in the groove, the second camera is disposed on the electric pan-tilt, and the control computer can control the operation of the electric pan-tilt so as to adjust the shooting angle of the second camera.

[0065] In this embodiment, the second camera can be a zoom camera. During the test, the second camera collects the image of the object under test and transmits it to the control computer. The tester can remotely monitor the image of the object under test, thereby analyzing the performance of the object under test in different environments. The design of the transparent heat insulation cover can prevent the change of the internal temperature of the temperature change test chamber from affecting the second camera.

[0066] The above are only the preferred embodiments of the present invention, and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A method for testing the performance of materials and components based on remote monitoring, characterized in that, The method includes: Before the test starts, the control computer monitors the internal environment data of the temperature change test chamber through the sensor device, unlocks the door of the temperature change test chamber based on the internal environment data, and prompts the tester to place the test object, where the test object is a material or a component; The control computer monitors the situation of the tester entering and leaving the temperature change test chamber through the sensor device to control the locking of the door of the temperature change test chamber; During the test, the control computer controls the temperature change test chamber to test the performance of the test object according to the preset test plan, and automatically records the test process based on the blockchain; After the test ends, the control computer monitors the internal environment data of the temperature change test chamber through the sensor device, unlocks the door of the temperature change test chamber based on the internal environment data, and prompts the tester to take out the test object.

2. The method for testing the performance of materials and components based on remote monitoring according to claim 1, characterized in that The control computer monitors the internal environment data of the temperature change test chamber through the sensor device and unlocks the door of the temperature change test chamber based on the internal environment data. Specifically, it includes: Monitoring the internal temperature data of the temperature change test chamber through a temperature sensor; Monitoring the concentration data of harmful gases inside the temperature test chamber through a gas concentration sensor; Comparing the internal temperature of the temperature change test chamber with a preset temperature range, and comparing the concentration of harmful gases inside the temperature change test chamber with a preset concentration threshold; If the internal temperature of the temperature change test chamber is within the preset temperature range and the concentration of harmful gases inside is lower than the preset concentration threshold, then control the unlocking of the door of the temperature change test chamber.

3. The method for testing the performance of materials and components based on remote monitoring according to claim 1, wherein The control computer monitors the situation of the tester entering and leaving the temperature change test chamber through the sensor device and controls the locking of the door of the temperature change test chamber. Specifically, it includes the following operations: The tester carries a Bluetooth positioning beacon and the test object, opens the door of the temperature change test chamber and enters the temperature change test chamber; The control computer monitors the opening state of the door of the temperature change test chamber through a displacement sensor. When the opening of the door is detected, it captures the video of the door and the interior of the temperature change test chamber through a first camera; At least two Bluetooth base stations are set around the temperature change test chamber. The control computer obtains the communication signal strength between the Bluetooth base stations and the Bluetooth positioning beacon and calculates the azimuth and distance of the Bluetooth positioning beacon relative to the Bluetooth base stations; The control computer analyzes the video of the door and the interior of the temperature change test chamber through a video recognition model to obtain an image analysis result; The control computer analyzes the entry and exit situation of the tester according to the azimuth and distance of the Bluetooth positioning beacon relative to the Bluetooth base stations and the image analysis result, and controls the locking of the door of the temperature change test chamber according to the entry and exit situation of the tester.

4. The method for testing the performance of materials and components based on remote monitoring according to claim 3, characterized in that The Bluetooth positioning beacon includes a wristband. A housing is provided on the wristband. A Bluetooth communication module, a light-emitting module and a power supply are provided in the housing. The power supply is used to supply power to the Bluetooth communication module. The Bluetooth communication module is used for wireless communication with the Bluetooth base stations. The Bluetooth communication module is connected to the light-emitting module through a control circuit. The Bluetooth communication module is also used for communication with the tester's mobile terminal to obtain the tester's identity information, and controls the light-emitting module to emit light according to the tester's identity information according to a preset light-emitting rule. The preset light-emitting rule is used to represent the light-emitting mode of the light-emitting module corresponding to testers with different identities.

5. The method for testing the performance of materials and components based on remote monitoring according to claim 4, characterized in that, The control computer analyzes the video of the door and the interior of the temperature change test chamber through a video recognition model, and specifically includes the following operations: The video of the door and the interior of the temperature change test chamber is sliced into a series of consecutive sub-images by frame; Identify and label the areas in the sub-images where the testers are present; Identify and label the luminous areas in the areas where the testers are present; Obtain the test plan, determine the identity information of the testers according to the test plan, and obtain the corresponding preset luminous rules according to the identity information of the testers; Perform semantic recognition on the labeled luminous areas in a series of consecutive sub-images, and judge whether there is a luminous mode in the luminous areas of the series of consecutive sub-images that does not conform to the preset luminous rules according to the semantic recognition results. If so, output an abnormal alarm message.

6. The method for testing the performance of materials and components based on remote monitoring according to claim 3, wherein The control computer automatically records the test process based on the blockchain, and specifically includes the following operations: Obtain the test plan, summarize the test plan and test data into test process data, and perform a hash operation on the test process data to obtain a first operation result; Summarize the sensor monitoring data and the video of the door and the interior of the temperature change test chamber into remote monitoring data, and perform a hash operation on the remote monitoring data to obtain a second operation result; Encrypt the test process data and the remote monitoring data to obtain encrypted data, save the encrypted data to the distributed file system, and obtain the storage path of the encrypted data in the distributed file system; Write the first operation result, the second operation result, and the storage path into the block of the blockchain.

7. A method for testing the performance of materials and components based on remote monitoring according to claim 6, characterized in that, The encryption of the test process data and the remote monitoring data specifically includes the following operations: Obtain the identity information of the testers according to the test plan; Obtain a preset vocabulary table, the preset vocabulary table contains several word elements, initialize the identity feature vector, the identity feature vector contains several vector elements, and each vector element corresponds to a word element in the preset vocabulary table; Parse the words contained in the identity information of the testers, and assign values to all the vector elements in the identity feature vector according to the parsing results; Combine the completed identity feature vector with the secret key according to the preset combination rule to obtain a combined secret key; Encrypt the test process data and the remote monitoring data with the combined secret key.

8. A method for testing the performance of materials and components based on remote monitoring according to claim 6, characterized in that, The remote monitoring data also includes the video of the test object during the test process, and the video of the test object is collected by a second camera arranged inside the temperature change test chamber.

9. A method for testing the performance of materials and components based on remote monitoring according to claim 8, characterized in that A groove is provided on the inner side wall of the temperature change test chamber, a transparent heat insulation cover is provided on the groove, an electric pan-tilt is provided in the groove, and the second camera is arranged on the electric pan-tilt.

Images