Aging room product accompanying test method and system

Abstract

The invention relates to the technical field of vehicle-mounted charger aging test, in particular to an aging room product accompanying test method and system. According to the scheme, it is ensured that the temperature in each test cabinet is provided with an independent temperature detector, and the number and configuration of the test cabinets are adjusted according to needs through modular design; a heating device and a cooling device are arranged in each test cabinet; automatically identifying the connected vehicle-mounted charger, and starting a test according to a preset self-test program; the state monitoring man-machine interface is used for setting an automatic test program and checking a test result in real time; a safety alarm system is installed in the test cabinet, and an alarm is given and the test is stopped once an accident is detected; and after the test result of each vehicle-mounted charger is obtained, automatic optimization supplementary test is carried out. According to the scheme, the intelligent identification system is integrated in the test cabinet, the connection state of the vehicle-mounted charger can be automatically detected, automatic test is completed, and the test efficiency and reliability are improved.

Description

Technical Field

[0001] The present invention relates to the technical field of vehicle charger aging test, and more specifically, to a product testing method and system for an aging room. Background Art

[0002] The aging room of the on-board OBC automatic production line is a device specially used for aging test of on-board OBC (On-Board Charger). In the production process, in order to ensure the performance and reliability of the on-board charger, it is necessary to perform aging test on it. The aging room usually has a constant temperature and humidity environment to simulate the environmental conditions in actual use and test the on-board charger for long-term continuous operation. This can effectively screen out potential quality problems and improve the reliability and stability of the product.

[0003] Prior to the present invention, the existing aging room product testing methods mainly relied on subjective visual inspection and simple non-destructive testing technology. The technical difficulties and key points include: During the aging test, it is necessary to ensure that the temperature in the cabinet can reach and remain within the set range, which places high demands on the performance of the heating device and the cooling device. In addition, due to the limitations of its design, the traditional testing method is difficult to test multiple products at the same time, resulting in low testing efficiency. In summary, although the traditional method can meet the basic testing needs to a certain extent, it has many shortcomings in terms of temperature control, test efficiency, accuracy and reliability, human-machine interface and control, and safety performance. Summary of the invention

[0004] In view of the above problems, the present invention proposes a method and system for accompanying testing of products in an aging room. By integrating an intelligent recognition system in a test cabinet, the connection status of the vehicle charger can be automatically detected, automatic testing can be completed, and test efficiency and reliability can be improved.

[0005] According to a first aspect of an embodiment of the present invention, a method for testing products in an aging room is provided.

[0006] In one or more embodiments, preferably, the aging room product testing method comprises:

[0007] Ensure that each test cabinet has an independent temperature detector, and adjust the number and configuration of test cabinets according to needs through modular design;

[0008] Deploy heating and cooling devices in each test cabinet;

[0009] Automatically identifies the connected on-board charger and starts testing according to the preset self-test procedure;

[0010] Set up the status monitoring human-machine interface of the automatic test program to view the test results in real time;

[0011] Install a safety alarm system in the test cabinet, which will immediately sound an alarm and stop the test once an unexpected situation is detected;

[0012] After obtaining the test results of each on-board charger, automatic optimization and retesting are performed.

[0013] In one or more embodiments, preferably, the method of ensuring that the temperature in each test cabinet has an independent temperature detector, and adjusting the number and configuration of the test cabinets according to needs through modular design, specifically includes:

[0014] Each test cabinet is equipped with an independent temperature control and detection system and at least one temperature detector for real-time monitoring and maintaining the preset temperature conditions;

[0015] The test cabinets should be designed as stackable and combinable modules to facilitate the flexible configuration of the number and layout of the test cabinets according to test requirements.

[0016] In one or more embodiments, preferably, the heating and cooling devices are deployed in each test cabinet, specifically including:

[0017] Evaluate the heat load of each test cabinet to determine the required heating and cooling capacity;

[0018] Based on the evaluation results, select the type and power of the heating and cooling devices.

[0019] In one or more embodiments, preferably, the automatically identifying the connected on-board charger and starting the test according to a preset self-test program specifically includes:

[0020] An intelligent recognition system is integrated into the test cabinet, which can automatically detect the connection status of the on-board charger;

[0021] Once the on-board charger is connected to the test cabinet, the intelligent identification system will identify the model and specification of the on-board charger and send the information to the central control system;

[0022] The central control system sends a preset self-test program according to the model and specifications of the on-board charger.

[0023] In one or more embodiments, preferably, the state monitoring human-machine interface of the automatic test program is set to view the test results in real time, specifically including:

[0024] A status monitoring human-machine interface is pre-set, and the status monitoring human-machine interface can obtain the execution progress of the preset self-test program in real time;

[0025] According to the execution progress of the preset self-test program, the running results are extracted online and displayed in real time.

[0026] In one or more embodiments, preferably, the safety alarm system is installed in the test cabinet, and once an unexpected situation is detected, an alarm is immediately sounded and the test is stopped, specifically including:

[0027] A door status monitoring device is installed on the door. When the door is opened in operation, an alarm will sound immediately.

[0028] An automatic alarm is set inside each test cabinet, and when the operating status satisfies the first calculation formula, an alarm will sound immediately;

[0029] The first calculation formula is:

[0030]

[0031] Wherein, T is the real-time temperature and F is the preset temperature range.

[0032] In one or more embodiments, preferably, after obtaining the test result of each on-board charger, performing automatic optimization and supplementary testing specifically includes:

[0033] Extract the existing on-board charger test process and identify bottlenecks, redundant steps or inefficient links in the process;

[0034] Collecting the test results of each on-board charger, wherein the test results of the on-board charger include test time, failure rate, and equipment utilization rate;

[0035] Determine whether the test result satisfies the second calculation formula, if not, the test step at the corresponding moment is a retest step;

[0036] If the equipment utilization rate does not satisfy the third calculation formula during the test, a request to adjust the test conditions is issued;

[0037] Determine the overall failure rate after monitoring is completed. If the overall failure rate of the same batch does not satisfy the fourth calculation formula, use the fifth calculation formula to calculate the temperature energy during the period with the highest failure rate, and determine whether the temperature energy during the period with the highest failure rate satisfies the sixth calculation formula. If not, adjust the overall test conditions;

[0038] When retesting steps, adjusting test conditions or adjusting overall test conditions, the retest will be automatically optimized;

[0039] Automatically record test data and generate structured test reports;

[0040] The second calculation formula is:

[0041] T1÷TZ>10%

[0042] Among them, T1 is the total time duration that does not meet the absolute safety margin range under a certain test step, and TZ is the total test time duration under a certain test step;

[0043] The third calculation formula is:

[0044] L>80%

[0045] Wherein, L is the equipment utilization rate;

[0046] The fourth calculation formula is:

[0047] P>10%

[0048] Where P is the overall failure rate;

[0049] The fifth calculation formula is:

[0050]

[0051] Among them, Tt is the temperature at time t, TZ0 is the starting point of the period with the highest failure rate, TZ1 is the end point of the period with the highest failure rate, and Gt is the temperature energy of the period with the highest failure rate;

[0052] The sixth calculation formula is:

[0053] Gt>Y

[0054] Wherein, Y is the preset energy contrast margin.

[0055] According to a second aspect of an embodiment of the present invention, a product testing system for an aging room is provided.

[0056] In one or more embodiments, preferably, the aging room product testing system comprises:

[0057] The information acquisition module is used to ensure that each test cabinet has an independent temperature detector, and the number and configuration of the test cabinets can be adjusted according to needs through modular design;

[0058] Heating and cooling modules are used to deploy heating and cooling devices in each test cabinet;

[0059] Automatic detection module, used to automatically identify the connected on-board charger and start testing according to the preset self-test program;

[0060] Real-time viewing module, used to set the status monitoring human-machine interface of the automatic test program, and to view the test results in real time;

[0061] Automatic warning module, used to install a safety alarm system in the test cabinet, which will immediately sound an alarm and stop the test once an unexpected situation is detected;

[0062] The supplementary optimization module is used to perform automatic optimization and supplementary testing after obtaining the test results of each vehicle charger.

[0063] According to a third aspect of an embodiment of the present invention, there is provided a computer-readable storage medium on which computer program instructions are stored. When the computer program instructions are executed by a processor, the method as described in any one of the first aspect of the embodiment of the present invention is implemented.

[0064] According to a fourth aspect of an embodiment of the present invention, there is provided an electronic device, comprising a memory and a processor, wherein the memory is used to store one or more computer program instructions, wherein the one or more computer program instructions are executed by the processor to implement any one of the methods described in the first aspect of the embodiment of the present invention.

[0065] The technical solution provided by the embodiments of the present invention may have the following beneficial effects:

[0066] In the solution of the present invention, efficient testing is achieved through automated testing based on test data.

[0067] In the solution of the present invention, comprehensive and reliable consistency coverage testing is achieved through integrated real-time data acquisition and collection technology.

[0068] Other features and advantages of the present invention will be described in the following description, and partly become apparent from the description, or understood by practicing the present invention. The purpose and other advantages of the present invention can be realized and obtained by the structures particularly pointed out in the written description, claims, and drawings.

[0069] The technical solution of the present invention is further described in detail below through the accompanying drawings and embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0070] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative work.

[0071] Figure 1 The present invention is a flowchart of a method for testing products in an aging room according to an embodiment of the present invention.

[0072] Figure 2 This is a flow chart of a method for testing products in an aging room according to an embodiment of the present invention, which ensures that each test cabinet has an independent temperature detector, and adjusts the number and configuration of the test cabinets as needed through modular design.

[0073] Figure 3The present invention is a flowchart of deploying a heating and cooling device in each test cabinet in a product testing method in an aging room according to an embodiment of the present invention.

[0074] Figure 4 The present invention is a flowchart of automatically identifying a connected vehicle charger in a product testing method of an aging room according to an embodiment of the present invention, and starting the test according to a preset self-test program.

[0075] Figure 5 The present invention discloses a flow chart of a state monitoring human-machine interface for setting an automatic test program in a product testing method of an aging room according to an embodiment of the present invention, and for viewing test results in real time.

[0076] Figure 6 The present invention is a flowchart of a method for testing products in an aging room according to an embodiment of the present invention, in which a safety alarm system is installed in a test cabinet, and once an unexpected situation is detected, an alarm is immediately sounded and the test is stopped.

[0077] Figure 7 The present invention is a flowchart of an aging room product testing method according to an embodiment of the present invention, in which after obtaining the test result of each vehicle charger, automatic optimization and supplementary testing is performed.

[0078] Figure 8 It is a structural diagram of a product testing system for an aging room according to an embodiment of the present invention.

[0079] Fig. 9 It is a structural diagram of an electronic device in one embodiment of the present invention. DETAILED DESCRIPTION

[0080] In some of the processes described in the specification and claims of the present invention and the above-mentioned figures, multiple operations that appear in a specific order are included, but it should be clearly understood that these operations may not be executed in the order in which they appear in this article or executed in parallel. The serial numbers of the operations, such as 101, 102, etc., are only used to distinguish different operations, and the serial numbers themselves do not represent any execution order. In addition, these processes may include more or fewer operations, and these operations may be executed in sequence or in parallel. It should be noted that the descriptions of "first", "second", etc. in this article are used to distinguish different messages, devices, modules, etc., do not represent the order of precedence, and do not limit the "first" and "second" to be different types.

[0081] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present invention.

[0082] The aging room of the on-board OBC automatic production line is a device specially used for aging test of on-board OBC (On-Board Charger). In the production process, in order to ensure the performance and reliability of the on-board charger, it is necessary to perform aging test on it. The aging room usually has a constant temperature and humidity environment to simulate the environmental conditions in actual use and test the on-board charger for long-term continuous operation. This can effectively screen out potential quality problems and improve the reliability and stability of the product.

[0083] Prior to the present invention, the existing aging room product testing method mainly relied on subjective visual inspection and simple non-destructive testing technology. The technical difficulties and key points include that during the aging test, it is necessary to ensure that the temperature in the cabinet can reach and remain within the set range, which places high demands on the performance of the heating device and the cooling device. Due to the limitations of its design, the traditional test method is difficult to test multiple products at the same time, resulting in low test efficiency. Due to the uneven temperature and inconsistent test conditions, it is difficult for the traditional method to ensure the accuracy and reliability of the test results. In order to improve the flexibility and convenience of the test, it is necessary to design an intuitive human-machine interface and a precise control system so that the operator can easily set and track the test conditions. During the test, if the cabinet is accidentally opened, an alarm device is required to remind the operator to avoid insufficient test time or potential safety risks. In summary, although the traditional method can meet the basic test requirements to a certain extent, it has many deficiencies in temperature control, test efficiency, accuracy and reliability, human-machine interface and control, and safety performance.

[0084] In an embodiment of the present invention, a method and system for accompanying testing of products in an aging room are provided. The solution can automatically detect the connection status of the vehicle charger by integrating an intelligent recognition system in the test cabinet, complete the automated test, and improve the test efficiency and reliability.

[0085] According to a first aspect of an embodiment of the present invention, a method for testing products in an aging room is provided.

[0086] Figure 1 The present invention is a flowchart of a method for testing products in an aging room according to an embodiment of the present invention.

[0087] In one or more embodiments, preferably, the aging room product testing method comprises:

[0088] S101. Ensure that each test cabinet has an independent temperature detector, and adjust the number and configuration of test cabinets as needed through modular design;

[0089] S102. Deploy heating and cooling devices in each test cabinet;

[0090] S103, automatically identifying the connected vehicle charger and starting the test according to the preset self-test program;

[0091] S104, setting a status monitoring human-machine interface for the automatic test program to view the test results in real time;

[0092] S105. Install a safety alarm system in the test cabinet, which will immediately sound an alarm and stop the test once an unexpected situation is detected;

[0093] S106: After obtaining the test results of each vehicle charger, perform automatic optimization and supplementary testing.

[0094] In an embodiment of the present invention, a flexible test cabinet system is designed to accurately control and monitor the temperature conditions under different test environments. The system consists of multiple independent test cabinets, each of which is equipped with at least one temperature detector and a temperature control unit. The temperature detector is a high-precision digital temperature sensor, such as PT100 or NTC thermistor, which can monitor the temperature in the test cabinet in real time and feed the data back to the temperature control unit. The temperature control unit adopts an advanced microprocessor control system, such as a PID (proportional-integral-differential) controller, which can automatically adjust the heating or cooling equipment in the test cabinet according to the preset temperature value to ensure that the temperature in the test cabinet is stable within the preset range. In addition, the design of each test cabinet conforms to the principles of modularization, stackability and combination, so that the number and layout of the test cabinets can be flexibly configured according to specific experimental requirements. For example, when performing a series of electronic component aging tests under different temperature conditions, the temperature of different test cabinets can be set to 40°C, 50°C and 60°C as needed. The system ensures that the temperature of each test environment reaches the preset value and remains stable during the entire test process by independently controlling and monitoring the temperature in each test cabinet. If you need to add more test conditions or expand the test scale, you only need to simply add more test cabinets, and the integration and control of the new test cabinets can be achieved through simple configuration.

[0095] Figure 2 This is a flow chart of ensuring that each test cabinet has an independent temperature detector in a product testing method of an aging room according to an embodiment of the present invention, and adjusting the number and configuration of the test cabinets as needed through modular design.

[0096] like Figure 2 As shown, in one or more embodiments, preferably, the temperature in each test cabinet is ensured to have an independent temperature detector, and the number and configuration of the test cabinets are adjusted as needed through modular design, specifically including:

[0097] S201, each test cabinet is equipped with an independent temperature control and detection system, and at least one temperature detector for real-time monitoring and maintaining preset temperature conditions;

[0098] S202. Test cabinets should be designed as stackable and combinable modules to facilitate flexible configuration of the number and layout of test cabinets according to test requirements.

[0099] In an embodiment of the present invention, in order to ensure that the temperature in each test cabinet can be accurately controlled according to the test requirements, a heating and cooling device is deployed in each test cabinet. First, the required heating and cooling capacity is determined by a detailed evaluation of the heat load of each test cabinet. This evaluation takes into account the size of the test cabinet, the insulation performance, the expected maximum and minimum temperature ranges, and the heat that may be generated inside the test cabinet. Based on these evaluation results, a heating device and a cooling device of appropriate type and power are selected. For example, for a test cabinet that needs to heat up quickly or maintain high temperature conditions, a high-power electric heater is selected; and for a situation where rapid cooling is required, a cooling system composed of a refrigeration compressor and a fan is equipped. The selection of these devices ensures that the test cabinet can quickly and accurately reach and maintain the set temperature under different test requirements. As an example, assume that a test cabinet needs to quickly rise from room temperature (about 25°C) to 85°C for high temperature testing, and then quickly drop to -10°C for low temperature testing. A 1000-watt electric heater and a refrigeration system with a cooling capacity of 5000 BTU will be installed in this test cabinet. With this configuration, the test cabinet can increase the temperature from room temperature to 85°C in about 30 minutes, and decrease from 85°C to -10°C in 60 minutes, meeting the needs of rapid temperature changes.

[0100] Figure 3 The present invention is a flowchart of deploying a heating and cooling device in each test cabinet in a product testing method in an aging room according to an embodiment of the present invention.

[0101] like Figure 3 As shown, in one or more embodiments, preferably, the heating and cooling devices are deployed in each test cabinet, specifically including:

[0102] S301, evaluating the heat load of each test cabinet to determine the required heating and cooling capacity;

[0103] S302: Select the type and power of the heating device and the cooling device according to the evaluation result.

[0104] In an embodiment of the present invention, in order to ensure that the temperature in each test cabinet can be accurately controlled according to the test requirements, a heating and cooling device is deployed in each test cabinet. First, the required heating and cooling capacity is determined by a detailed evaluation of the heat load of each test cabinet. This evaluation takes into account the size of the test cabinet, the insulation performance, the expected maximum and minimum temperature ranges, and the heat that may be generated inside the test cabinet. Based on these evaluation results, a heating device and a cooling device of appropriate type and power are selected. For example, for a test cabinet that needs to heat up quickly or maintain high temperature conditions, a high-power electric heater is selected; and for a situation where rapid cooling is required, a cooling system composed of a refrigeration compressor and a fan is equipped. The selection of these devices ensures that the test cabinet can quickly and accurately reach and maintain the set temperature under different test requirements. As an example, assume that a test cabinet needs to quickly rise from room temperature (about 25°C) to 85°C for high temperature testing, and then quickly drop to -10°C for low temperature testing. A 1000-watt electric heater and a refrigeration system with a cooling capacity of 5000 BTU will be installed in this test cabinet. With this configuration, the test cabinet can increase the temperature from room temperature to 85°C in about 30 minutes, and decrease from 85°C to -10°C in 60 minutes, meeting the needs of rapid temperature changes.

[0105] Figure 4 The present invention is a flowchart of automatically identifying a connected vehicle charger in a product testing method of an aging room according to an embodiment of the present invention, and starting the test according to a preset self-test program.

[0106] like Figure 4 As shown, in one or more embodiments, preferably, the automatic identification of the connected on-board charger and the start of the test according to a preset self-test program specifically include:

[0107] S401, integrating an intelligent identification system in the test cabinet, the system being capable of automatically detecting the connection status of the vehicle charger;

[0108] S402, once the vehicle charger is connected to the test cabinet, the intelligent identification system will identify the model and specification of the vehicle charger and send the information to the central control system;

[0109] S403: The central control system issues a preset self-test program according to the model and specification of the vehicle charger.

[0110] In an embodiment of the present invention, a test cabinet with an integrated intelligent recognition system is designed to automatically detect and test a connected on-board charger. The intelligent recognition system uses a microprocessor and a sensor array to automatically detect the connection status of the on-board charger. Once the on-board charger is inserted into the corresponding interface of the test cabinet, the intelligent recognition system immediately identifies the model and specification of the connected on-board charger through electronic signals and physical characteristics. In this process, the system reads the electronic identification information of the charger (such as USB ID or proprietary chip code) as well as physical size, shape and interface type. The intelligent recognition system sends the identified on-board charger information to the central control system. The central control system is a computer equipped with advanced processing software, which automatically selects the corresponding self-test program from the preset test program library based on the received on-board charger model and specification information. These self-test programs are pre-written and optimized according to different models and specifications of chargers to ensure the accuracy and efficiency of the test. For example, when a car charger with model ABC123 is connected to the test cabinet, the intelligent recognition system will identify it as a USB Type-A charger with 5V / 2A output capability and send this information to the central control system. The central control system then issues a self-test program designed specifically for the ABC123 model, which will guide the test cabinet to perform a series of tests, including output voltage stability test, output current test and interface compatibility test.

[0111] Figure 5 The present invention discloses a flow chart of a state monitoring human-machine interface for setting an automatic test program in a product testing method of an aging room according to an embodiment of the present invention, and for viewing test results in real time.

[0112] like Figure 5 As shown, in one or more embodiments, preferably, the state monitoring human-machine interface of the automatic test program is set to view the test results in real time, specifically including:

[0113] S501, pre-setting a status monitoring human-machine interface, wherein the status monitoring human-machine interface can obtain the execution progress of a preset self-test program in real time;

[0114] S502: According to the execution progress of the preset self-test program, the operation results are extracted online and displayed in real time.

[0115] In an embodiment of the present invention, the state monitoring human-machine interface is integrated into the software platform of the test system, so that the operator can conveniently view and analyze the ongoing test. Specifically, when the preset self-test program begins to execute, the state monitoring human-machine interface obtains the current state and intermediate results of the test through real-time data exchange with the central control system. This information includes the test stage, elapsed time, current test items, test results, and any possible errors or warnings. All of these data will be dynamically updated and displayed on the state monitoring human-machine interface so that the operator can instantly understand the progress of the test. For example, assume that the self-test program being executed includes three stages: preliminary detection, performance evaluation, and safety testing. The state monitoring human-machine interface will display a clear progress bar or status indicator, indicating which stage the current test is in, as well as the specific results of each stage. If no abnormality is found in all test stages, the interface will display the message "test passed"; if an error is found in a certain stage, the interface will display the error type and related detailed data in real time, such as "performance evaluation failed: output voltage is lower than the standard value".

[0116] Figure 6 The present invention is a flowchart of a method for testing products in an aging room according to an embodiment of the present invention, in which a safety alarm system is installed in a test cabinet, and once an unexpected situation is detected, an alarm is immediately sounded and the test is stopped.

[0117] like Figure 6 As shown, in one or more embodiments, preferably, a safety alarm system is installed in the test cabinet, and once an unexpected situation is detected, an alarm is immediately sounded and the test is stopped, specifically including:

[0118] S601, a cabinet door status monitoring device is provided on the cabinet door, and when the cabinet door is opened in the running state, an alarm is sounded immediately;

[0119] S602, an automatic alarm is set inside each test cabinet, and when the operating status satisfies the first calculation formula, an alarm is sounded immediately;

[0120] The first calculation formula is:

[0121]

[0122] Wherein, T is the real-time temperature and F is the preset temperature range.

[0123] In an embodiment of the present invention, a safety alarm system is installed in each test cabinet. The safety alarm system consists of two parts: a cabinet door status monitoring device and an internal automatic alarm. The function of these devices is to monitor the safety status of the test cabinet in real time, and once an unexpected situation is detected, an alarm is immediately sounded and the test is automatically stopped to prevent possible equipment damage or personal injury. First, we installed a cabinet door status monitoring device on the cabinet door of the test cabinet. This device uses magnetic induction or micro switch technology to detect the opening and closing status of the cabinet door. When the test cabinet is in operation, if the cabinet door is accidentally opened, the status monitoring device will immediately detect this action, and activate the sound alarm through the control system to sound a ring alarm, and stop the execution of the test program through software logic control to avoid high temperature or leakage of dangerous substances to cause harm to the operator. Secondly, we set an automatic alarm inside each test cabinet, which is connected to a temperature sensor and programmed with a preset temperature range F (for example, the safe operating temperature range in the test cabinet is set to 20°C to 60°C). The automatic alarm will be evaluated based on the relationship between the real-time temperature T and the preset temperature range F. A specific calculation formula is used here: If the real-time temperature T exceeds the preset temperature range F, that is, the temperature is too high or too low, the automatic alarm will immediately activate the bell alarm and execute the command of emergency stop test through the control system to protect the test equipment from damage, and also prevent potential safety risks caused by abnormal temperature. For example, assume that the preset temperature range F is 20℃ to 60℃, and due to a fault or operating error, the real-time temperature T in the test cabinet rises to 70℃. At this time, the automatic alarm will detect this temperature anomaly, immediately sound a bell alarm, and instruct the control system to stop all test operations. Similarly, if the door of the test cabinet is opened during the test, the door status monitoring device will also trigger the bell alarm and stop the test. The safety alarm system in this embodiment effectively improves the safety of the test cabinet through the dual protection of the door status monitoring device and the internal automatic alarm. The design of the system is simple and effective, easy to implement, and the preset parameters can be adjusted according to actual needs to meet the safety requirements of different test environments.

[0124] Figure 7 The present invention is a flowchart of an aging room product testing method according to an embodiment of the present invention, in which after obtaining the test result of each vehicle charger, automatic optimization and supplementary testing is performed.

[0125] like Figure 7 As shown, in one or more embodiments, preferably, after obtaining the test result of each vehicle charger, performing automatic optimization and supplementary testing specifically includes:

[0126] S701, extract the existing on-board charger test process and identify the bottlenecks, redundant steps or inefficient links in the process;

[0127] S702, collecting the test results of each on-board charger, wherein the test results of the on-board charger include test time, failure rate, and equipment utilization rate;

[0128] S703, determining whether the test result satisfies the second calculation formula, and if not, the test step at the corresponding moment is a retest step;

[0129] S704. If the equipment utilization rate does not satisfy the third calculation formula during the test, a request to adjust the test condition is issued;

[0130] S705, determining the overall failure rate after the monitoring is completed. If the overall failure rate of the same batch does not satisfy the fourth calculation formula, the temperature energy during the period with the highest failure rate is calculated using the fifth calculation formula, and determining whether the temperature energy during the period with the highest failure rate satisfies the sixth calculation formula. If not, adjust the overall test conditions;

[0131] S706, when retesting, adjusting the test conditions, or adjusting the overall test conditions, the retest is automatically optimized;

[0132] S707, automatically record test data and generate a structured test report;

[0133] The second calculation formula is:

[0134] T1÷TZ>10%

[0135] Among them, T1 is the total time duration that does not meet the absolute safety margin range under a certain test step, and TZ is the total test time duration under a certain test step;

[0136] The third calculation formula is:

[0137] L>80%

[0138] Wherein, L is the equipment utilization rate;

[0139] The fourth calculation formula is:

[0140] P>10%

[0141] Where P is the overall failure rate;

[0142] The fifth calculation formula is:

[0143]

[0144] Among them, Tt is the temperature at time t, TZ0 is the starting point of the period with the highest failure rate, TZ1 is the end point of the period with the highest failure rate, and Gt is the temperature energy of the period with the highest failure rate;

[0145] The sixth calculation formula is:

[0146] Gt>Y

[0147] Wherein, Y is the preset energy contrast margin.

[0148] Among them, the process of extracting the existing on-board charger test process and identifying bottlenecks, redundant steps or inefficient links in the process includes testing the power supply stability of the vehicle when the vehicle uses the on-board charger, specifically including the changes in the power supply voltage and power of the vehicle under emergency braking and fault conditions in the historical database; extracting the most stringent changes in power supply voltage and power, setting them as 50% of the initial power supply conditions of the test time, failure rate, and equipment utilization rate in the test, and conducting an aging room test, so that the on-board charging equipment can more effectively resist vehicle abnormalities.

[0149] In an embodiment of the present invention, by analyzing the existing on-board charger test process, bottlenecks, redundant steps or inefficient links in the process are identified. These data are obtained by real-time monitoring of the test system, including key performance indicators such as the time consumption, failure rate and equipment utilization of each test step. Next, the detailed test results of each on-board charger are collected, which contain information such as test time, failure rate and equipment utilization. Based on these data, the second calculation formula T1÷TZ>10 is used to determine whether the total time that does not meet the absolute safety margin range under a certain test step exceeds 10% of the total test time of the step. If so, the test step at the corresponding moment is marked as a retest step. In addition, we monitor the equipment utilization and use the third calculation formula L>80 for evaluation. If the equipment utilization does not reach 80%, the system will issue an instruction to adjust the test conditions to optimize resource utilization. For the overall failure rate, we use the fourth calculation formula P>10 for evaluation. If the overall failure rate of the same batch exceeds 10%, we will further analyze the temperature energy during the period with the highest failure rate, which is calculated by the fifth calculation formula, where Tt is the temperature at time t, TZ0 is the starting point of the period with the highest failure rate, TZ1 is the end point, and Gt is the temperature energy during the period with the highest failure rate. Then, we check the sixth calculation formula Gt>Y, where Y is the preset energy comparison margin. If the temperature energy during the period with the highest failure rate does not meet the margin requirements, the system will automatically adjust the overall test conditions. When retesting, adjusting the test conditions, or adjusting the overall test conditions is required, the system will automatically perform optimized supplementary testing. All test data will be automatically recorded and a structured test report will be generated for further analysis and traceability. This embodiment achieves continuous optimization and self-adjustment of the on-board charger test process through automated data analysis and response mechanisms, significantly improving the accuracy and efficiency of the test. This method not only reduces the need for manual intervention, but also ensures the consistency and reliability of the test process, and is particularly suitable for large-scale production and quality control environments.

[0150] According to a second aspect of an embodiment of the present invention, a product testing system for an aging room is provided.

[0151] Figure 8 It is a structural diagram of a product testing system for an aging room according to an embodiment of the present invention.

[0152] In one or more embodiments, preferably, the aging room product testing system comprises:

[0153] The information collection module 801 is used to ensure that each test cabinet has an independent temperature detector, and the number and configuration of the test cabinets can be adjusted according to needs through modular design;

[0154] A heating and cooling module 802 is used to deploy heating and cooling devices in each test cabinet;

[0155] The automatic detection module 803 is used to automatically identify the connected vehicle charger and start the test according to the preset self-test program;

[0156] Real-time viewing module 804, used to set the status monitoring human-machine interface of the automatic test program, and to view the test results in real time;

[0157] Automatic warning module 805, used to install a safety alarm system in the test cabinet, which will immediately sound an alarm and stop the test once an unexpected situation is detected;

[0158] The supplementary optimization module 806 is used to perform automatic optimization and supplementary testing after obtaining the test results of each vehicle charger.

[0159] In the embodiment of the present invention, a system suitable for different structures is realized through a series of modular designs. The system can achieve closed-loop, reliable and efficient execution through collection, analysis and control.

[0160] According to a third aspect of an embodiment of the present invention, there is provided a computer-readable storage medium on which computer program instructions are stored. When the computer program instructions are executed by a processor, the method as described in any one of the first aspect of the embodiment of the present invention is implemented.

[0161] According to a fourth aspect of an embodiment of the present invention, an electronic device is provided. Fig. 9 It is a structural diagram of an electronic device in one embodiment of the present invention. Fig. 9The electronic device shown is a general aging room product test device, which includes a general computer hardware structure, which includes at least a processor 901 and a memory 902. The processor 901 and the memory 902 are connected via a bus 903. The memory 902 is suitable for storing instructions or programs executable by the processor 901. The processor 901 can be an independent microprocessor or a collection of one or more microprocessors. Thus, the processor 901 executes the instructions stored in the memory 902, thereby executing the method flow of the embodiment of the present invention as described above to realize the processing of data and the control of other devices. The bus 903 connects the above-mentioned multiple components together, and at the same time connects the above-mentioned components to the display controller 904 and the display device and the input / output (I / O) device 905. The input / output (I / O) device 905 can be a mouse, a keyboard, a modem, a network interface, a touch input device, a somatosensory input device, a printer, and other devices known in the art. Typically, the input / output device 905 is connected to the system via an input / output (I / O) controller 906.

[0162] The technical solution provided by the embodiments of the present invention may have the following beneficial effects:

[0163] In the solution of the present invention, efficient testing is achieved through automated testing based on test data.

[0164] In the solution of the present invention, comprehensive and reliable consistency coverage testing is achieved through integrated real-time data acquisition and collection technology.

[0165] Those skilled in the art will appreciate that embodiments of the present invention may be provided as methods, systems, or computer program products. Therefore, the present invention may take the form of a complete hardware embodiment, a complete software embodiment, or an embodiment combining software and hardware. Moreover, the present invention may take the form of a computer program product implemented on one or more computer-usable storage media (including but not limited to disk storage and optical storage, etc.) containing computer-usable program code.

[0166] The present invention is described with reference to flowcharts and / or block diagrams of methods, devices (systems), and computer program products according to embodiments of the present invention. It should be understood that each process and / or block in the flowchart and / or block diagram, as well as the combination of processes and / or blocks in the flowchart and / or block diagram, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, a special-purpose computer, an embedded processor, or other programmable data processing device to produce a machine, so that the instructions executed by the processor of the computer or other programmable data processing device generate instructions for implementing the processes in the flowchart and / or block diagram. Figure 1 A process or multiple processes and / or boxes Figure 1 A device that provides the functions specified in a block or multiple blocks.

[0167] These computer program instructions may also be stored in a computer-readable memory capable of directing a computer or other programmable data processing device to operate in a specific manner, so that the instructions stored in the computer-readable memory produce an article of manufacture comprising an instruction device, which implements the process Figure 1 A process or multiple processes and / or boxes Figure 1 A function specified in one or more boxes.

[0168] These computer program instructions can also be loaded onto a computer or other programmable data processing device so that a series of operating steps are executed on the computer or other programmable device to produce a computer-implemented process, thereby providing instructions for implementing the process. Figure 1 A process or multiple processes and / or boxes Figure 1 The steps for the functions specified in one or more boxes.

[0169] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include these modifications and variations.

Claims

1. A method for testing products in an aging room, characterized in that: The method includes: Ensure that each test cabinet has an independent temperature detector, and adjust the number and configuration of test cabinets according to needs through modular design; Deploy heating and cooling devices in each test cabinet; Automatically identifies the connected on-board charger and starts testing according to the preset self-test procedure; Set up the status monitoring human-machine interface of the automatic test program to view the test results in real time; Install a safety alarm system in the test cabinet, which will immediately sound an alarm and stop the test once an unexpected situation is detected; After obtaining the test results of each on-board charger, automatic optimization and retesting are performed.

2. A method for testing products in an aging room as claimed in claim 1, characterized in that: The temperature in each test cabinet is ensured to have an independent temperature detector, and the number and configuration of the test cabinets can be adjusted according to needs through modular design, including: Each test cabinet is equipped with an independent temperature control and detection system and at least one temperature detector for real-time monitoring and maintaining the preset temperature conditions; The test cabinets should be designed as stackable and combinable modules to facilitate the flexible configuration of the number and layout of the test cabinets according to test requirements.

3. A method for testing products in an aging room as claimed in claim 1, characterized in that: The heating and cooling devices are deployed in each test cabinet, specifically including: Evaluate the heat load of each test cabinet to determine the required heating and cooling capacity; Based on the evaluation results, select the type and power of the heating and cooling devices.

4. A method for testing products in an aging room as claimed in claim 1, characterized in that: The automatic identification of the connected on-board charger and the start of the test according to the preset self-test procedure specifically include: An intelligent recognition system is integrated into the test cabinet, which can automatically detect the connection status of the on-board charger; Once the on-board charger is connected to the test cabinet, the intelligent identification system will identify the model and specification of the on-board charger and send the information to the central control system; The central control system sends a preset self-test program according to the model and specifications of the on-board charger.

5. A method for testing products in an aging room as claimed in claim 1, characterized in that: The state monitoring human-machine interface of the automatic test program is set up to view the test results in real time, specifically including: A status monitoring human-machine interface is pre-set, and the status monitoring human-machine interface can obtain the execution progress of the preset self-test program in real time; According to the execution progress of the preset self-test program, the running results are extracted online and displayed in real time.

6. A method for testing products in an aging room as claimed in claim 1, characterized in that: The safety alarm system is installed in the test cabinet, and once an unexpected situation is detected, an alarm is immediately sounded and the test is stopped, specifically including: A door status monitoring device is installed on the door. When the door is opened in operation, an alarm will sound immediately. An automatic alarm is set inside each test cabinet, and when the operating status satisfies the first calculation formula, an alarm will sound immediately; The first calculation formula is: Wherein, T is the real-time temperature and F is the preset temperature range.

7. A method for testing products in an aging room as claimed in claim 1, characterized in that: After obtaining the test results of each on-board charger, automatic optimization and supplementary testing are performed, specifically including: Extract the existing on-board charger test process and identify bottlenecks, redundant steps or inefficient links in the process; Collecting the test results of each on-board charger, wherein the test results of the on-board charger include test time, failure rate, and equipment utilization rate; Determine whether the test result satisfies the second calculation formula, if not, the test step at the corresponding moment is a retest step; If the equipment utilization rate does not satisfy the third calculation formula during the test, a request to adjust the test conditions is issued; Determine the overall failure rate after monitoring is completed. If the overall failure rate of the same batch does not satisfy the fourth calculation formula, use the fifth calculation formula to calculate the temperature energy during the period with the highest failure rate, and determine whether the temperature energy during the period with the highest failure rate satisfies the sixth calculation formula. If not, adjust the overall test conditions; When retesting steps, adjusting test conditions or adjusting overall test conditions, the retest will be automatically optimized; Automatically record test data and generate structured test reports; The second calculation formula is: T1÷TZ>10% Among them, T1 is the total time duration that does not meet the absolute safety margin range under a certain test step, and TZ is the total test time duration under a certain test step; The third calculation formula is: L＞80％ Wherein, L is the equipment utilization rate; The fourth calculation formula is: P＞10％ Where P is the overall failure rate; The fifth calculation formula is: Among them, Tt is the temperature at time t, TZ0 is the starting point of the period with the highest failure rate, TZ1 is the end point of the period with the highest failure rate, and Gt is the temperature energy of the period with the highest failure rate; The sixth calculation formula is: Gt>Y Wherein, Y is the preset energy contrast margin.

8. A product testing system for an aging room, characterized in that: The system is used to implement the method according to any one of claims 1 to 7, and the system comprises: The information acquisition module is used to ensure that each test cabinet has an independent temperature detector, and the number and configuration of the test cabinets can be adjusted according to needs through modular design; Heating and cooling modules are used to deploy heating and cooling devices in each test cabinet; Automatic detection module, used to automatically identify the connected on-board charger and start testing according to the preset self-test program; Real-time viewing module, used to set the status monitoring human-machine interface of the automatic test program, and to view the test results in real time; Automatic warning module, used to install a safety alarm system in the test cabinet, which will immediately sound an alarm and stop the test once an unexpected situation is detected; The supplementary optimization module is used to perform automatic optimization and supplementary testing after obtaining the test results of each vehicle charger.

9. A computer-readable storage medium storing computer program instructions, characterized in that: The computer program instructions implement the method according to any one of claims 1 to 7 when executed by a processor.

10. An electronic device comprising a memory and a processor, characterized in that: The memory is used to store one or more computer program instructions, wherein the one or more computer program instructions are executed by the processor to implement the method according to any one of claims 1-7.

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