Aging detection system of vehicle machine equipment

Abstract

The utility model discloses an aging detection system of vehicle machine equipment. The system comprises an aging cabinet main body; wherein the aging cabinet main body comprises a plurality of aging box bodies, a cabinet door, equipment box bodies and an electric control box, the plurality of equipment box bodies and the electric control box are arranged on the same side of the aging cabinet main body, and the plurality of aging box bodies, the plurality of equipment box bodies and the electric control box are arranged through front and rear partition plates in a dividing manner; each aging box body is used for placing tested vehicle machine equipment; the temperature detection devices are distributed in the aging box bodies, are electrically connected with the electric control box and are used for detecting the temperature in the aging box bodies in real time; the temperature control devices are distributed in the equipment box bodies, are electrically connected with the electric control box, and are used for heating the aging box bodies and controlling the heating duration and temperature so as to provide an aging environment for the tested vehicle machine equipment; and the vehicle machine detection device is arranged in the equipment box body, is electrically connected with one path of programmable power supply separated from the electric control box, and is used for detecting the detected vehicle machine equipment in the aging box body in the aging process of the detected vehicle machine equipment.

Description

Technical Field

[0001] The utility model relates to the technical field of in-vehicle device aging, in particular to an aging detection system for in-vehicle devices. Background Art

[0002] In order to ensure the high performance and reliability of in-vehicle devices in actual applications, aging tests must be carried out before leaving the factory to verify that they meet the established standards and can effectively reveal potential defects, which is an important part of ensuring the overall quality of products.

[0003] In related technologies, the widely used integrated aging cabinet can perform this test on in-vehicle devices in different batches. However, when the number of test samples is small, this method reveals two major drawbacks: one is the low energy utilization rate, resulting in excessive energy consumption during the test; the other is that due to the high investment and operating costs of the equipment, in the case of small-batch tests, the unit cost rises sharply, which is not conducive to cost control. Therefore, the utility model urgently needs to provide a new aging detection system suitable for in-vehicle devices in different batches. Summary of the Utility Model

[0004] An object of the utility model is to provide an aging detection system for in-vehicle devices. Its advantage lies in that the system integrates multiple aging boxes, equipment boxes and electric control boxes into a main structure and is effectively divided by front and rear partitions, which not only optimizes the space layout, but also can be flexibly adjusted according to actual test requirements by setting multiple independent aging boxes. Especially when dealing with small-batch tests, it can significantly reduce energy waste and improve the overall energy efficiency.

[0005] Another object of the utility model is to provide an aging detection system for in-vehicle devices. Its advantage lies in that the temperature detection device configured in each aging box can monitor the temperature in the box in real time. Cooperating with a precise temperature control device, it can achieve high-precision control of the aging environment, ensure the stability and accuracy of the temperature, simulate real and strict aging conditions, accelerate the equipment aging process, and improve the test efficiency and the reliability of the results.

[0006] Another object of the utility model is to provide an aging detection system for in-vehicle devices. Its advantage lies in that the in-vehicle device detection device is directly arranged in the equipment box and works synchronously with the in-vehicle device to be tested. It can perform function detection and performance evaluation on the in-vehicle device while conducting the aging test. The collected data is directly transmitted to the upper computer, which is convenient for real-time analysis and evaluation, and provides detailed data support for product improvement and quality control. Further, as a power supply device, the electric control box uniformly provides power for managing the temperature detection, control and in-vehicle device detection devices.

[0007] Another object of the present utility model is to provide an aging detection system for a vehicle-mounted device. Its advantage lies in that through the flexible combination of one or more vertical partitions, front and rear partitions, and horizontal partitions, the heat transfer between different aging boxes is effectively isolated, ensuring more precise and independent temperature control inside each box, avoiding mutual interference in the test environment, and improving the accuracy and reliability of the test results.

[0008] Another object of the present utility model is to provide an aging detection system for a vehicle-mounted device. Its advantage lies in that the wiring harness is connected to the vehicle-mounted device to be tested and is matched with the vehicle-mounted device to be tested. A number of data information is transmitted on the adapter board, and one or more data information are selected according to needs, realizing the universality of the aging detection device for the vehicle-mounted device. Each vehicle-mounted device to be tested is configured with a wiring harness that matches it. According to different vehicle-mounted devices to be tested, only the matching wiring harness needs to be replaced, without the need to re-prepare the aging tooling equipment, saving costs.

[0009] Another object of the present utility model is to provide an aging detection system for a vehicle-mounted device. Its advantage lies in that by ensuring that the number of adapter boards and wiring harnesses in each aging box matches the number of transmission paths of the vehicle-mounted detection device, it is ensured that the vehicle-mounted detection device can detect all data of each vehicle-mounted device through independent transmission channels, avoiding data confusion or loss, and improving the accuracy and efficiency of data processing.

[0010] Another object of the present utility model is to provide an aging detection system for a vehicle-mounted device. Its advantage lies in that the air curtain machine can help the temperature inside the box quickly drop to near room temperature by generating uniformly distributed airflows, accelerating the equipment cooling process, shortening the time for the equipment to recover from the high-temperature test state to the normal temperature, and improving the test turnover efficiency. Through the uniform air supply of the air curtain machine, to a certain extent, it can avoid the direct impact of external cold air on the vehicle-mounted device in the high-temperature state, reduce the material stress change or electronic component damage caused by too large a temperature difference, protect the equipment from the influence of thermal shock, and ensure the safe exit of the equipment from the test state.

[0011] Another object of the present utility model is to provide an aging detection system for a vehicle-mounted device. Its advantage lies in that a touch screen is installed, which can display the aging temperature and working state inside each aging box. As a human-machine interaction interface, the user can set and / or view information such as the aging temperature inside each aging box, the heating duration during the aging process, the total aging time required, and the aging progress through the touch screen.

[0012] Another object of the present utility model is to provide an aging detection system for a vehicle-mounted device. Its advantage lies in that the alarm lamp can immediately reflect the working state of the aging box.

[0013] Another object of the present utility model is to provide an aging detection system for a vehicle-mounted device, and its advantage lies in that the movable device improves the mobility of the aging cabinet main body.

[0014] Another object of the present utility model is to provide an aging detection system for a vehicle-mounted device, and its advantage lies in that the horizontally sliding push-pull door is adopted, which does not occupy additional vertical or front space, making the equipment layout more compact and facilitating operation and maintenance in a narrow space.

[0015] Another object of the present utility model is to provide an aging detection system for a vehicle-mounted device, and its advantage lies in that the cabinet door is flipped up or down. The cabinet doors flipped up or down can be opened simultaneously, which is convenient for operators to unload the vehicle-mounted device under test at the same time. It avoids the situation that when there are two or more aging boxes in the same horizontal direction, the push-pull doors of the aging boxes can only be operated on one side at a time, and the vehicle-mounted devices under test in two or more aging boxes cannot be unloaded simultaneously.

[0016] Another object of the present utility model is to provide an aging detection system for a vehicle-mounted device, and its advantage lies in that by integrating a CAN / CANFD module and a vehicle-mounted Ethernet conversion module, the detection device can support both CAN / CANFD bus and vehicle-mounted Ethernet, two mainstream vehicle-mounted communication protocols, ensuring wide compatibility with vehicle-mounted devices of different vehicle models and different communication standards, and improving the versatility and application scope of the test.

[0017] Another object of the present utility model is to provide an aging detection system for a vehicle-mounted device, and its advantage lies in that the configuration of the current acquisition module and the voltage acquisition module enables the system to monitor the current and voltage changes of the vehicle-mounted device under test in real time and accurately during the aging process. This is crucial for evaluating the power consumption, stability, and electrical safety performance of the device, and helps to detect and diagnose potential electrical faults in a timely manner.

[0018] Another object of the present utility model is to provide an aging detection system for a vehicle-mounted device, and its advantage lies in that the introduction of the resistive load board can simulate real usage load conditions, evaluate the working performance of the vehicle-mounted device under different loads, and ensure its reliability and stability under various working conditions. This is of great value for verifying the durability of the device and optimizing the design.

[0019] Another object of the present utility model is to provide an aging detection system for a vehicle-mounted device, and its advantage lies in that each module in the vehicle-mounted detection device is directly or indirectly electrically connected to the upper computer, realizing high-speed and efficient transmission of test data. The upper computer can analyze these data in real time, quickly identify performance bottlenecks or abnormal conditions, and provide support for accurate evaluation of test results and timely decision-making.

[0020] Another object of the present utility model is to provide an aging detection system for vehicle-mounted device, and its advantage lies in that the introduction of the switch effectively solves the problem of the number limit of the upper computer Ethernet interfaces, enabling a single upper computer to manage more vehicle-mounted devices to be tested simultaneously, and improving the scalability and concurrent testing ability of the test system.

[0021] To achieve one or more of the above objects, the technical solutions of the embodiments of the present utility model are implemented as follows:

[0022] The present utility model provides an aging detection system for vehicle-mounted device, and the system includes:

[0023] The main body of the aging cabinet;

[0024] Wherein, the main body of the aging cabinet includes a plurality of aging boxes, cabinet doors for closing each aging box, equipment boxes corresponding to each aging box, and an electric control box. The plurality of equipment boxes and the electric control box are arranged on the same side of the main body of the aging cabinet, and the plurality of aging boxes, the plurality of equipment boxes and the electric control box are partitioned by front and rear partitions;

[0025] Each aging box is used for placing the vehicle-mounted device to be tested;

[0026] A number of temperature detection devices are respectively arranged in each aging box and are respectively electrically connected to the electric control box, and are used for detecting the temperature in the aging box in real time;

[0027] A number of temperature control devices are respectively arranged in each equipment box and are respectively electrically connected to the electric control box, and are used for heating the aging box and controlling the heating duration and temperature to provide an aging environment for the vehicle-mounted device to be tested;

[0028] A number of vehicle-mounted device detection devices are respectively arranged in the equipment box and are electrically connected to a path of programmed power supply separated from the electric control box, and are used for detecting the vehicle-mounted device to be tested in the aging box during the aging process of the vehicle-mounted device to be tested.

[0029] Optionally, the plurality of aging boxes, the plurality of equipment boxes and the electric control box are a plurality of space boxes formed by partitioning the space in the main body of the aging cabinet through one or more vertical partitions, one or more front and rear partitions, and one or more horizontal partitions.

[0030] Optionally, at least one adapter plate is fixed on the front and rear partitions in the aging box. One end of the adapter plate is connected to the vehicle-mounted device to be tested based on a wiring harness, and the other end is led out to the vehicle-mounted device detection device based on a connecting wire.

[0031] Optionally, the number of adapter plates and the number of wiring harnesses in each aging box are the same as the number of transmission paths of each vehicle head unit detection device. Each of the adapter plates and the wiring harnesses corresponds to each transmission path of the vehicle head unit detection device. One transmission path is used to transmit all the detection data of one vehicle head unit device to be tested.

[0032] Optionally, the system further includes: an air curtain machine and a touch screen. The air curtain machine and the touch screen are respectively installed on the top wall and / or the side wall of the aging box side of the aging cabinet main body, and the installation area positions of the air curtain machine and the touch screen are different; the touch screen is respectively electrically connected to the temperature detection device and the temperature control device; the touch screen is used to display and / or set the working state of each aging box, the temperature in each aging box, the aging time that has elapsed in each aging box, and the total aging time required.

[0033] Optionally, the system further includes: an alarm lamp. The alarm lamp is installed on the top wall of the aging box side of the aging cabinet main body; the alarm lamp is used to give an alarm indication of the current working state of each aging box.

[0034] Optionally, the system further includes: a movable device. The movable device is installed at the bottom of the aging cabinet main body; the movable device is used to move the position of the aging cabinet main body.

[0035] Optionally, the cabinet door is a horizontally sliding push-pull door. Horizontal sliding grooves are respectively formed at the top and bottom of the inner walls of multiple aging boxes in the same horizontal direction. The push-pull doors of each aging box in the same horizontal direction slide left and right in the horizontal sliding grooves; or, the cabinet door is connected to the horizontal partition in the aging box through hinges to turn the cabinet door upward or downward.

[0036] Optionally, the system further includes: a host computer and an IO control board. One end of the programmable power supply is electrically connected to the host computer, and the other end of the programmable power supply is connected to the IO control board. The IO control board provides power for multiple to-be-tested vehicle head units through multiple said adapter boards and multiple said wiring harnesses; The vehicle head unit detection device includes a CAN / CANFD module, a vehicle-mounted Ethernet conversion module, a current acquisition module, a voltage acquisition module, and a resistive load board. One end of the CAN / CANFD module is electrically connected to the host computer, and the other end of the CAN / CANFD module is electrically connected to the to-be-tested vehicle head unit through an adapter board and a wiring harness; One end of the vehicle-mounted Ethernet conversion module is connected to the Ethernet interface of the host computer, and the other end of the vehicle-mounted Ethernet conversion module is connected to the to-be-tested vehicle head unit through the adapter board and the wiring harness; One end of the current acquisition module is electrically connected to the host computer, and the other end of the current acquisition module is electrically connected to the to-be-tested vehicle head unit through the adapter board and the wiring harness; One end of the voltage acquisition module is electrically connected to the host computer, and the other end of the voltage acquisition module is connected to the resistive load board and then electrically connected to the to-be-tested vehicle head unit through the adapter board and the wiring harness.

[0037] Optionally, the vehicle head unit detection device further includes: a switch. One end of the vehicle-mounted Ethernet conversion module is connected to the Ethernet interface of the host computer through the switch, and the other end of the vehicle-mounted Ethernet conversion module is connected to the to-be-tested vehicle head unit through the adapter board and the wiring harness. Description of the Drawings

[0038] Figure 1 Schematic diagram of the structure of an optional aging detection system for vehicle head units in an embodiment of the present invention Figure 1 ;

[0039] Figure 2 Schematic diagram of the structure of an optional aging detection system for vehicle head units in an embodiment of the present invention Figure 2 ;

[0040] Figure 3 Schematic diagram of the structure of the adapter board and the wiring harness in an optional aging box in an embodiment of the present invention;

[0041] Figure 4 Circuit connection diagram of an optional vehicle head unit detection device in an embodiment of the present invention. Detailed Embodiment

[0042] To enable those skilled in the art to better understand the solutions of the present utility model, the technical solutions in the embodiments of the present utility model will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present utility model.

[0043] The terms "first", "second", etc. in the description and claims of the present utility model and the above-mentioned drawings are used to distinguish different objects, rather than to describe a specific order. In addition, the terms "comprising" and "having" and any variations thereof are intended to cover non-exclusive inclusion. For example, a process, method, system, product or device that includes a series of steps or units is not limited to the listed steps or units, but optionally further includes steps or units not listed, or optionally further includes other steps or units inherent to these processes, methods, products or devices.

[0044] Referring to "embodiments" herein means that the specific features, structures or characteristics described in connection with the embodiments can be included in at least one embodiment of the present utility model. The phrase appears in various places in the specification and does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment mutually exclusive with other embodiments. Those skilled in the art explicitly and implicitly understand that the embodiments described herein can be combined with other embodiments.

[0045] An aging detection system for a vehicle-mounted device provided by an embodiment of the present utility model, referring to Figures 1 to 3 As shown, the aging detection system 100 of the vehicle-mounted device includes: an aging cabinet main body 1, a temperature detection device 2 (not shown in the figure), a temperature control device 3 (not shown in the figure), and a vehicle-mounted device detection device 4 (not shown in the figure).

[0046] Among them, the aging cabinet main body 1 includes a plurality of aging boxes 11, cabinet doors 12 for closing each aging box, device boxes 13 corresponding to each aging box 11, and an electric control box 14. The plurality of device boxes 13 and the electric control box 14 are arranged on the same side of the aging cabinet main body 1. The plurality of aging boxes 11 are separated from the plurality of device boxes 13 and the electric control box 14 by front and rear partitions.

[0047] Each aging box 11 is used to place the vehicle-mounted device to be tested.

[0048] Among them, several temperature detection devices 2 are respectively arranged in each aging box 11 and are respectively connected to the electric control box 14 for real-time detection of the temperature in the aging box 11.

[0049] Among them, several temperature control devices 3 are respectively arranged in each equipment cabinet 13 and are electrically connected to the electrical control box 14, and are used for heating the aging cabinet 11 and controlling the heating duration and temperature to provide an aging environment for the vehicle-mounted device under test;

[0050] Among them, several vehicle-mounted device detection devices 4 are respectively arranged in the equipment cabinet 13 and are electrically connected to a programmed power supply 15 branched out from the electrical control box 14, and are used for detecting the vehicle-mounted device under test in the aging cabinet 11 during the aging process of the vehicle-mounted device under test.

[0051] In the embodiment of the present utility model, the aging cabinet main body integrates a plurality of aging cabinets, cabinet doors for closing each aging cabinet, equipment cabinets corresponding to each aging cabinet, and an electrical control box. It should be noted that the aging cabinet main body physically divides the aging cabinet, the equipment cabinet and the electrical control box through front and rear partition boards, which not only effectively organizes the internal space of the aging cabinet main body, but also ensures the independence of each test area, avoids heat transfer interference, and improves the accuracy and safety of the test. Exemplarily, the aging cabinet main body integrates 6 aging cabinets, 6 cabinet doors, 6 equipment cabinets, and an electrical control box.

[0052] Among them, the aging cabinet main body includes a plurality of independent aging cabinets. Among them, an independent aging cabinet can simultaneously perform aging tests on multiple vehicle-mounted devices. Of course, multiple independent aging cabinets can also work simultaneously, so as to simultaneously perform aging tests on a larger number of vehicle-mounted devices, improving the test throughput and meeting the test requirements of different scales. Each aging cabinet can operate independently, and can also provide a dedicated test environment for the vehicle-mounted devices under test with different types and different test requirements.

[0053] Among them, each aging cabinet is equipped with a cabinet door, which can maintain the airtightness of the internal environment of the cabinet, prevent external environmental factors from interfering with the test results, and ensure the accuracy of temperature control and the accuracy of the test.

[0054] Among them, an equipment cabinet is correspondingly arranged for each aging cabinet. Such a design facilitates the integration and management of test equipment. The equipment cabinet may integrate temperature control devices, power management, and necessary test instruments, etc., ensuring the efficient operation of the test and the flexibility of control.

[0055] Among them, the electrical control box, as the power control center, centrally manages functions such as temperature control and power distribution, and is arranged on the same side of the aging cabinet main body together with a plurality of equipment cabinets. In this way, this layout is beneficial to wiring management and maintenance.

[0056] In the embodiments of the present utility model, the vehicle-mounted device under test can be directly placed inside the aging box. Of course, one or more horizontal brackets can also be installed inside the aging box, and the vehicle-mounted device under test can be placed on both the bottom of the aging box and the horizontal brackets. In this regard, the present utility model does not make specific limitations.

[0057] In the embodiments of the present utility model, a temperature detection device is respectively deployed in each aging box, and a temperature control device is respectively deployed in each equipment box. The temperature detection device and the temperature control device are respectively electrically connected to the electric control box. The temperature detection device can detect the temperature inside the aging box in real time, and the temperature control device can heat the aging box and control the heating duration and temperature to provide an aging environment for the vehicle-mounted device under test. Exemplarily, the temperature detection device can be a temperature sensor. In this way, the temperature detection device and the temperature control device can achieve high-precision control of the aging environment, ensure the stability and accuracy of the temperature, simulate real and strict aging conditions, accelerate the device aging process, and improve the test efficiency and the reliability of the results.

[0058] In the embodiments of the present utility model, a vehicle-mounted detection device is respectively deployed in each equipment box. The vehicle-mounted detection device is electrically connected to a path of programmed power supply branched out from the electric control box. During the aging process of the vehicle-mounted device under test, the vehicle-mounted detection device collects relevant data of the vehicle-mounted device under test in the corresponding aging box for detecting the vehicle-mounted device under test according to the collected data. Here, the relevant data includes but is not limited to current data, voltage data, Controller Area Network (CAN) data, Controller Area Network with Data-over-Flexible Data-rate (CANFD) data, Ethernet data, etc. In this way, the vehicle-mounted detection device can perform function detection and performance evaluation on the vehicle-mounted device while conducting the aging test, and the collected data is directly transmitted to the host computer for convenient real-time analysis and evaluation, providing detailed data support for product improvement and quality control.

[0059] In some embodiments, a plurality of aging boxes, a plurality of equipment boxes, and an electric control box form a plurality of space boxes by partitioning the space inside the aging cabinet main body through one or more vertical partitions, one or more front and rear partitions, and one or more horizontal partitions.

[0060] In the embodiments of the present utility model, through the flexible combination of one or more vertical partitions, front and rear partitions, and horizontal partitions, the space inside the aging cabinet main body can be efficiently utilized, and the layout and size of the box body can be flexibly adjusted according to different test requirements. It is suitable for both large-batch and small-batch aging tests of in-vehicle infotainment (IVI) devices, improving the flexibility and efficiency of space use. The reasonable layout of the partitions effectively isolates the heat transfer between different aging boxes, ensuring more precise and independent temperature control inside each box, avoiding mutual interference in the test environment, and improving the accuracy and reliability of test results.

[0061] In some embodiments, referring to Figure 3 As shown, a plurality of adapter plates 111 and wiring harnesses 112 are fixed on the front and rear partitions inside the aging box 11. One end of the adapter plate 111 is connected to the IVI device under test based on a wiring harness 112, and the other end is led out to the IVI detection device based on a connection wire.

[0062] In the embodiments of the present utility model, each adapter plate transmits a number of data. The number of data includes Ethernet data, power-on signal data, load signal data, and CAN / CANFD signal data. Each wiring harness includes an Ethernet cable for transmitting Ethernet data, and a power cable for transmitting the power-on signal data, providing load signal data, and CAN / CANFD signal data of the IVI device under test.

[0063] In the embodiments of the present utility model, a plurality of adapter plates are fixed on the front and rear partitions inside the aging box. One end of the adapter plate is connected to a wiring harness, and the other end is led out to the IVI detection device based on a connection wire. Among them, the wiring harness is connected to the IVI device under test and is matched with the IVI device under test. A number of data information is transmitted on the adapter plate. One or more data information are selected according to needs, realizing the versatility of the aging detection device for IVI devices. Each IVI device under test is configured with a matching wiring harness. According to different IVI devices under test, only the matching wiring harness needs to be replaced, without re-preparing the aging tooling equipment, saving costs. After the wiring harness is connected to the IVI device under test, all signals in the IVI device under test are transferred to the IVI detection device, and automatic detection of the trolley can be realized. Such a device not only realizes the versatility of the aging tooling equipment for IVI, but also saves the investment cost of the project.

[0064] In some embodiments, the number of adapter plates and the number of wiring harnesses in each aging box are the same as the number of transmission paths of each IVI detection device. Each adapter plate and wiring harness corresponds to each transmission path of the IVI detection device. Among them, one transmission path is used to transmit all the detection data of one IVI device under test.

[0065] In the embodiments of the present utility model, all the detection data includes, but is not limited to, voltage detection data, current detection data, CAN / CANFD data, and Ethernet data.

[0066] In the embodiments of the present utility model, a vehicle head unit detection device may have multiple transmission paths. The number of adapter plates and the number of wiring harnesses in each aging box are the same as the number of paths of the transmission paths of each vehicle head unit detection device. It should be noted that each adapter plate and wiring harness correspond to each transmission path of the vehicle head unit detection device. All the detection data of the vehicle under test equipment can be transmitted through the corresponding wiring harness, adapter plate, and the transmission path of the vehicle head unit detection device.

[0067] Exemplarily, a number of adapter plates and a number of wiring harnesses are fixed on the front and rear partition plates in the aging box, such as 6 adapter plates and 6 wiring harnesses, that is, 6 vehicles under test equipment can be placed in the aging box at the same time. One end of each adapter plate is connected to the vehicle under test equipment based on a wiring harness, and the other end is led out to the corresponding vehicle head unit detection device based on a connection line.

[0068] In the embodiments of the present utility model, by ensuring that the number of adapter plates and wiring harnesses in each aging box matches the number of paths of the transmission paths of the vehicle head unit detection device, the data of the vehicle under test equipment is transmitted to the host computer through the corresponding transmission channels of the vehicle under test equipment. In this way, it is ensured that all the detection data of each vehicle head unit equipment can be efficiently and losslessly transmitted to the detection device through independent transmission channels, avoiding data confusion or loss, and improving the accuracy and efficiency of data processing. The one-to-one correspondence simplifies the maintenance work of the system. Once there is a problem with the detection data of a certain vehicle under test equipment, it can be directly located on the corresponding adapter plate, wiring harness, or transmission path for inspection and repair, without large-scale investigation, greatly shortening the fault diagnosis and repair time. Since the data transmission of each vehicle head unit equipment is independent, data crosstalk and signal interference are avoided, ensuring the reliability and stability of the test results, which is crucial for ensuring the quality control of vehicle head unit equipment.

[0069] In some embodiments, continue to refer to Figure 1 As shown, the aging detection system 100 of the vehicle head unit equipment further includes: an air curtain machine 5 and a touch screen 6. The air curtain machine 5 and the touch screen 6 are respectively installed on the top wall and / or side wall of the aging box 11 side of the aging cabinet main body 1, and the installation area positions of the air curtain machine 5 and the touch screen 6 are different;

[0070] The touch screen 6 is respectively electrically connected to the temperature detection device and the temperature control device;

[0071] The touch screen 6 is used to display and / or set the working state of each aging box, the temperature in each aging box, the aging time that has elapsed in each aging box, and the total aging time required.

[0072] In the embodiments of the present utility model, there may be one or more air curtain machines, which are installed on the top wall and / or side wall of the aging box body on the side of the aging cabinet main body. When the aging of the vehicle-mounted device under test is completed in multiple aging boxes and the cabinet door is opened, the air curtain machine can uniformly cool multiple aging boxes, reduce power consumption, and the installation of the air curtain machine on the top or side wall can also reduce the occupation of the space inside the box, optimize the internal layout, and provide more effective space for the device under test.

[0073] In one scenario, when the aging test of the vehicle-mounted device under test is completed and the cabinet door of the aging box body is opened, the air curtain machine can help the temperature inside the box quickly drop to near room temperature by generating uniformly distributed airflows, accelerate the equipment cooling process, shorten the time for the equipment to recover from the high-temperature test state to the normal temperature, and improve the test turnover efficiency. Through the uniform air supply of the air curtain machine, it is possible to avoid the direct impact of external cold air on the vehicle-mounted device in the high-temperature state to a certain extent, reduce the material stress change or electronic component damage caused by too large a temperature difference, protect the equipment from the impact of thermal and cold shocks, and ensure the safe exit of the equipment from the test state.

[0074] In the embodiments of the present utility model, the touch screen is installed on the top wall and / or side wall of the aging box body on the side of the aging cabinet main body, which can avoid interfering with the environment inside the box during operation, especially the stability of temperature control. Moreover, the side or top wall position is usually more convenient for the operator to observe and operate, without the need to enter or approach the test area, which is both convenient and safe.

[0075] Here, the touch screen can be electrically connected to the temperature detection device; in this way, the aging temperature inside each aging box can be displayed on the display interface of the touch screen. Of course, the touch screen can also be electrically connected to the temperature control device. As a man-machine interaction interface, the user can set the aging temperature inside each aging box, the heating duration during the aging process, the total aging time required, and view the aging progress, etc. through the touch screen, and the temperature control device can control according to the above setting information. Further, the touch screen can also display and / or set the working status of each aging box, such as the normal aging status, the fault status, and the idle status.

[0076] Here, separating the installation areas of the air curtain machine and the touch screen can avoid the direct impact of the airflow generated by the air curtain on the operation interface, protect the touch screen from the influence of hot airflows or humidity, extend the service life, and ensure the clarity and sensitivity of the operation interface.

[0077] In some embodiments, continue to refer to Figure 1 As shown, the aging detection system 100 of the vehicle-mounted device further includes: an alarm lamp 7, and the alarm lamp 7 is installed on the top wall of the aging box body 11 side of the aging cabinet main body 1;

[0078] The alarm lamp 7 is used to give an alarm indication for the current working status of each aging box body 11.

[0079] In the embodiments of the present utility model, the warning light has three colors of red, green, and yellow and a buzzer warning function, which is used for warning indication of the current working state of the aging cabinet. Green indicates the normal aging state, red indicates the fault state, yellow indicates the idle state, and the buzzer warning indicates the serious fault state.

[0080] In the embodiments of the present utility model, the warning light can immediately reflect the working state of the aging cabinet. Once a certain aging cabinet has a temperature overlimit, equipment failure, or other abnormal conditions, the warning light will immediately light up, providing an intuitive visual warning for the operator, without the need to frequently check the control panel or data records, improving the speed and efficiency of abnormal response. Further, the timely warning indication helps prevent potential safety accidents, such as the fire risk caused by high temperature or electrical faults. By immediately notifying the on-site personnel to take measures, the occurrence of accidents can be effectively avoided or the damage can be reduced.

[0081] In some embodiments, continuing to refer to Figure 1 as shown, the aging detection system 100 of the vehicle machine device further includes: a movable device 8, and the movable device 8 is installed at the bottom of the aging cabinet main body 1;

[0082] The movable device 8 is used to move the position of the aging cabinet main body 1.

[0083] Here, the movable device can be a universal sliding wheel, a directional sliding wheel, a crawler sliding wheel, a climbing sliding wheel, and a rubber sliding wheel. Movable devices are provided at the four corners of the bottom of the aging cabinet main body; the movable device further improves the moving convenience of the aging cabinet main body on the premise of the aging cabinet main body.

[0084] In some embodiments, the cabinet door is a horizontally sliding push-pull door. Horizontal sliding grooves are respectively opened at the top and bottom of the inner walls of multiple aging boxes in the same horizontal direction. The push-pull doors of each aging box in the same horizontal direction slide left and right in the horizontal sliding grooves; or,

[0085] The cabinet door is connected to the horizontal partition in the aging box through a hinge to flip the cabinet door upward or downward.

[0086] In the embodiments of the present utility model, the horizontally sliding push-pull door does not occupy additional vertical or front space, making the equipment layout more compact and facilitating operation and maintenance in a narrow space. The operation of the push-pull door is simple, and the user can easily open and close it, improving the efficiency of the test operation and reducing the time and physical effort required to open the cabinet door. The horizontal sliding groove design helps enhance the sealing performance between the cabinet door and the box body, reduce heat loss during the test, and maintain the stability of the temperature inside the box and the consistency of the test environment.

[0087] In the embodiments of the present utility model, by flipping the cabinet door upward or downward, the flipping cabinet door connected by hinges can provide a completely unobstructed access path to the device before and after the test, facilitating the rapid loading and unloading of the vehicle head unit device to be tested, as well as internal cleaning and maintenance. The cabinet door that flips upward or downward can be opened simultaneously, facilitating the operator to unload the vehicle head unit devices to be tested at the same time. In the case where there are two or more aging boxes in the same horizontal direction, the sliding doors of the aging boxes can only be operated on one side at a time, and the vehicle head unit devices in two or more aging boxes cannot be unloaded simultaneously. The hinge connection design is usually relatively sturdy and durable, capable of withstanding frequent opening and closing actions, and is suitable for long-term use and high-intensity test environments.

[0088] In some embodiments, as shown in Figure 1 and Figure 4 the aging detection system 100 of the vehicle head unit device further includes: a host computer 9 and an input / output (IO) control board 10. One end of the programmable power supply 15 is electrically connected to the host computer 9, and the other end of the programmable power supply 15 is connected to the IO control board 10. The IO control board 10 provides power to a plurality of vehicle head unit devices to be tested through a plurality of adapter boards and a plurality of wiring harnesses;

[0089] The vehicle head unit detection device 4 includes a CAN / CANFD module 41, a vehicle-mounted Ethernet conversion module 42, a current acquisition module 43, a voltage acquisition module 44, and a resistive load board 45, where

[0090] One end of the CAN / CANFD module 41 is electrically connected to the host computer 9, and the other end of the CAN / CANFD module 41 is electrically connected to the vehicle head unit device to be tested through an adapter board and a wiring harness;

[0091] One end of the vehicle-mounted Ethernet conversion module 42 is connected to the Ethernet interface of the host computer 9, and the other end of the vehicle-mounted Ethernet conversion module 42 is connected to the vehicle head unit device to be tested through an adapter board and a wiring harness;

[0092] One end of the current acquisition module 43 is connected to the host computer 9, and the other end of the current acquisition module 43 is electrically connected to the vehicle head unit device to be tested through an adapter board and a wiring harness;

[0093] One end of the voltage acquisition module 44 is connected to the host computer 9, and after the other end of the voltage acquisition module 44 is connected to the resistive load board 45, it is electrically connected to the vehicle head unit device to be tested through an adapter board and a wiring harness.

[0094] In the embodiments of the present utility model, during the aging detection of the vehicle head unit device, the communication interaction between the host computer and the vehicle head unit device to be tested is one of the key links. The host computer ensures the accurate issuance of test instructions, the feedback of real-time monitoring data, and the effective collection of test results. Specifically,

[0095] Communication between the host computer and the vehicle-mounted device under test generally uses standardized communication protocols, such as CAN / CANFD, Local Interconnect Network (LIN), Ethernet, or dedicated in-vehicle network protocols, etc., to ensure reliable data transmission and interoperability.

[0096] As the control center, the host computer sets the parameters of the aging test (such as temperature set value, aging time, test sequence, etc.) through programming, and sends instructions to each vehicle-mounted device through the communication interface to start the aging test program.

[0097] During the aging test, the vehicle-mounted device continuously or periodically sends status information and detection data (such as temperature sensor readings, working voltage and current, etc.) to the host computer through the communication link. The software interface of the host computer can display these data in real time, facilitating the operator to monitor the test process and promptly discover and handle abnormal situations.

[0098] The host computer is responsible for collecting and recording all data during the entire test process. These data are crucial for evaluating the performance degradation, life prediction, and fault analysis of the vehicle-mounted device. Later, the collected data is statistically analyzed through data analysis software to evaluate whether the vehicle-mounted device meets the expected performance indicators and reliability requirements. When the host computer detects that the data of the vehicle-mounted device under test exceeds the preset range of parameters or a fault occurs, the host computer immediately triggers an alarm to prompt the operator to intervene and handle it, ensuring the safety of the test and taking corrective measures in a timely manner.

[0099] After the test is completed, the host computer software can automatically summarize the test data and generate a detailed test report, including test environment parameters, device performance, test results, and possible fault analysis, etc., providing a basis for subsequent product improvement and quality control.

[0100] In the embodiment of the present utility model, the I / O adapter board includes multiple ports. By using the multiple ports, the I / O adapter board can supply power to multiple vehicle-mounted devices under test at one time, reducing the number of input and output docking operations, thereby improving work efficiency.

[0101] In the embodiment of the present utility model, one end of the programmable power supply is electrically connected to the upper computer through the RS485 bus, and the other end is connected to the IO control board. The IO control board provides power for multiple to-be-tested vehicle head units (such as n to-be-tested vehicle head units, where n is an integer greater than or equal to 1) through multiple adapter boards and multiple wiring harnesses. In this way, through the electrical connection with the programmable power supply, the upper computer can remotely control the on / off of the power supply, realizing the power control during the aging test process; the IO control board can provide independent and adjustable power supply for each to-be-tested vehicle head unit according to the instructions of the upper computer, ensuring the flexibility and accuracy of power distribution. At the same time, it is also convenient to dynamically adjust the power supply parameters according to needs during the test to meet the specific requirements of different test stages or different devices.

[0102] In the embodiment of the present utility model, one end of the CAN / CANFD module is electrically connected to the upper computer, and the other end is electrically connected to the to-be-tested vehicle head unit through an adapter board and a wiring harness, and is used to obtain the CAN / CANFD data of the to-be-tested vehicle head unit.

[0103] In the embodiment of the present utility model, when the number of Ethernet interfaces (also known as network ports) of the upper computer is sufficient, one end of the in-vehicle Ethernet conversion module is connected to the Ethernet interface of the upper computer, and the other end is connected to the to-be-tested vehicle head unit through an adapter board and a wiring harness, and is used to convert the in-vehicle Ethernet data into standard Ethernet data.

[0104] In the embodiment of the present utility model, one end of the current acquisition module is electrically connected to the upper computer through the RS485 bus, and the other end is electrically connected to the to-be-tested vehicle head unit through an adapter board and a wiring harness, and is used to collect the current output by the to-be-tested vehicle head unit.

[0105] In the embodiment of the present utility model, one end of the voltage acquisition module is electrically connected to the upper computer through the RS485 bus, and after the other end is connected to the resistor load board, it is electrically connected to the to-be-tested vehicle head unit through an adapter board and a wiring harness, and is used to collect the voltage of the resistor load board.

[0106] In the embodiment of the present utility model, the resistor load board has multiple loads, each load simulates a speaker, and a vehicle head unit has multiple speakers, such as 4 - 8.

[0107] It should be noted that one to-be-tested vehicle head unit corresponds to one CAN / CANFD, Ethernet conversion port, current port, and voltage port in the vehicle head unit detection device. Of course, one to-be-tested vehicle head unit also corresponds to one power supply port of the programmable power supply.

[0108] In the embodiments of the present utility model, by integrating a CAN / CANFD module and a vehicle-mounted Ethernet conversion module, the detection device can support two mainstream vehicle-mounted communication protocols, namely the CAN / CANFD bus and vehicle-mounted Ethernet, ensuring wide compatibility with vehicle head unit devices of different vehicle models and different communication standards, and improving the universality and applicable range of the test. The configuration of the current acquisition module and the voltage acquisition module enables the system to monitor the current and voltage changes of the vehicle head unit device under test in real time and accurately during the aging process, which is crucial for evaluating the power consumption, stability, and electrical safety performance of the device, and helps to detect and diagnose potential electrical faults in a timely manner. The introduction of the resistive load board can simulate real usage load conditions to evaluate the working performance of the vehicle head unit device under different loads, ensuring its reliability and stability under various working conditions, which is of great value for verifying the durability of the device and optimizing the design. Each module in the vehicle head unit detection device is directly or indirectly electrically connected to the upper computer, realizing high-speed and efficient transmission of test data. The upper computer can analyze these data in real time, quickly identify performance bottlenecks or abnormal conditions, and provide support for the accurate evaluation of test results and timely decision-making. Through the flexible connection method of the adapter board and the wiring harness, the detection device supports rapid deployment and adjustment, adapts to different test configurations and device types, improves the flexibility and maintainability of the test system, and reduces the test preparation time and cost.

[0109] In some embodiments, with continued reference to Figure 4 , the vehicle head unit detection device further includes: a switch 46,

[0110] One end of the vehicle-mounted Ethernet conversion module is connected to the Ethernet interface of the upper computer through the switch, and the other end of the vehicle-mounted Ethernet conversion module is connected to the vehicle head unit device under test through the adapter board and the wiring harness.

[0111] In an embodiment of the present utility model, when the number of Ethernet interfaces (also known as network ports) of the host computer is insufficient, one end of the vehicle-mounted Ethernet conversion module is connected to the Ethernet interface built in the host computer through a switch. That is, one port of the switch is connected to the Ethernet interface built in the host computer using an Ethernet cable; another port of the switch is connected to one end of the vehicle-mounted Ethernet conversion module using an Ethernet cable, and the other end of the vehicle-mounted Ethernet conversion module is connected to the vehicle under test device through an adapter board and wiring. In this way, by using the switch as an intermediary, the problem of the limitation of the number of Ethernet interfaces of the host computer is effectively solved, enabling a single host computer to manage more vehicle under test devices simultaneously, improving the scalability and concurrent test ability of the test system. The introduction of the switch makes the network topology more flexible, and the connection configuration can be easily adjusted according to the test requirements, facilitating the addition or removal of test devices in the future, and improving the adaptability and management efficiency of the system. The switch has the functions of data forwarding and collision avoidance, can effectively manage and optimize network traffic, ensure the fast and orderly transmission of data packets, reduce the possibility of network congestion and data loss, and improve the stability and reliability of data communication during the test process.

[0112] It should be understood that the "one embodiment" or "an embodiment" or "the embodiment of the present utility model" or "the foregoing embodiment" or "some embodiments" or "some implementation manners" mentioned throughout the specification means that the specific features, structures or characteristics related to the embodiment are included in at least one embodiment of the present utility model. Therefore, the "in one embodiment" or "in an embodiment" or "the embodiment of the present utility model" or "the foregoing embodiment" or "some embodiments" or "some implementation manners" appearing throughout the specification do not necessarily refer to the same embodiment. In addition, these specific features, structures or characteristics can be combined in one or more embodiments in any suitable manner. It should be understood that in various embodiments of the present utility model, the sequence numbers of the above processes do not mean the order of execution. The execution order of each process should be determined by its function and internal logic, and should not constitute any limitation to the implementation process of the embodiments of the present utility model. The sequence numbers of the embodiments of the present utility model above are only for description and do not represent the advantages or disadvantages of the embodiments.

[0113] In several embodiments provided by the present utility model, it should be understood that the disclosed devices and methods can be implemented in other ways. The device embodiments described above are only illustrative. For example, the division of units is only a logical function division, and there may be other division methods in actual implementation. For example, multiple units or components can be combined, or can be integrated into another system, or some features can be ignored, or not executed. In addition, the coupling, direct coupling, or communication connection between the components shown or discussed with each other can be through some interfaces, and the indirect coupling or communication connection of devices or units can be electrical, mechanical or other forms.

[0114] The units described above as separate components may or may not be physically separated, and the components shown as units may or may not be physical units; they may be located in one place or distributed across multiple network units; some or all of the units can be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0115] In addition, in each embodiment of the present utility model, each functional unit may be entirely integrated into one processing unit, or each unit may be separately regarded as one unit, or two or more units may be integrated into one unit; the above-mentioned integrated units may be implemented in the form of hardware or in the form of a combination of hardware and software functional units.

[0116] Those of ordinary skill in the art can understand that all or part of the steps of implementing the above method embodiments can be completed by hardware related to program instructions. The aforementioned program can be stored in a computer-readable storage medium. When the program is executed, it performs the steps including the above method embodiments; and the aforementioned storage medium includes: removable storage devices, read-only memory (ROM), magnetic disks or optical discs and other various media that can store program codes.

[0117] Alternatively, if the above-mentioned integrated units of the present utility model are implemented in the form of software functional modules and sold or used as independent products, they can also be stored in a computer-readable storage medium. Based on such understanding, the technical solution of the embodiments of the present utility model essentially or the part that contributes to the related technology can be embodied in the form of a software product. This computer software product is stored in a storage medium and includes several instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to execute all or part of the methods of the various embodiments of the present utility model. And the aforementioned storage medium includes: removable storage devices, ROM, magnetic disks or optical discs and other various media that can store program codes.

[0118] It should be noted that the drawings in the embodiments of the present utility model only illustrate the schematic positions of the various components on the terminal device and do not represent their actual positions in the terminal device. The actual positions of the various components or regions can be changed or offset according to the actual situation (for example, the structure of the terminal device). Moreover, the ratios of different parts in the terminal device in the drawings do not represent the actual ratios.

[0119] As mentioned above, it is only the implementation mode of the present utility model, but the protection scope of the present utility model is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present utility model can easily think of changes or substitutions, which should all be covered within the protection scope of the present utility model. Therefore, the protection scope of the present utility model shall be subject to the protection scope of the said claims.

Claims

1. An aging detection system for a vehicle-mounted device, characterized in that, The system includes: An aging cabinet main body; Among them, the aging cabinet main body includes a plurality of aging boxes, cabinet doors for closing each aging box, equipment boxes corresponding to each aging box, and an electric control box. The plurality of equipment boxes and the electric control box are arranged on the same side of the aging cabinet main body. The plurality of aging boxes are separated from the plurality of equipment boxes and the electric control box by front and rear partition boards; Each aging box is used to place the vehicle-mounted device to be tested; A number of temperature detection devices are respectively arranged in each aging box and are electrically connected to the electric control box respectively, and are used to detect the temperature in the aging box in real time; A number of temperature control devices are respectively arranged in each equipment box and are electrically connected to the electric control box respectively, and are used to heat the aging box and control the heating duration and temperature to provide an aging environment for the vehicle-mounted device to be tested; A number of vehicle-mounted device detection devices are respectively arranged in the equipment box and are electrically connected to a programmed power supply branched out from the electric control box, and are used to detect the vehicle-mounted device to be tested in the aging box during the aging process of the vehicle-mounted device to be tested.

2. The system according to claim 1, wherein The plurality of aging boxes, the plurality of equipment boxes and the electric control box form a plurality of space boxes by dividing the space in the aging cabinet main body through one or more vertical partition boards, one or more front and rear partition boards, and one or more horizontal partition boards.

3. The system according to claim 1 or 2, characterized in that, At least one adapter plate is fixed on the front and rear partition boards in the aging box. One end of the adapter plate is connected to the vehicle-mounted device to be tested based on a wiring harness, and the other end is led out to the vehicle-mounted device detection device based on a connecting wire.

4. The system according to claim 1 or 2, characterized in that, The number of adapter plates and the number of wiring harnesses in each aging box are the same as the number of transmission paths of each vehicle-mounted device detection device. Each adapter plate and the wiring harness correspond to each transmission path of the vehicle-mounted device detection device. Among them, one transmission path is used to transmit all the detection data of one vehicle-mounted device to be tested.

5. The system according to claim 1 or 2, characterized in that, The system further includes: an air curtain machine and a touch screen. The air curtain machine and the touch screen are respectively installed on the top wall and / or side wall of the aging box side of the aging cabinet main body, and the installation area positions of the air curtain machine and the touch screen are different; The touch screen is electrically connected to the temperature detection device and the temperature control device respectively; The touch screen is used to display and / or set the working state of each aging box, the temperature in each aging box, the aging time that has passed in each aging box, and the total aging time required.

6. The system according to claim 1 or 2, characterized in that, The system further includes: an alarm lamp, and the alarm lamp is installed on the top wall of the aging box side of the aging cabinet main body; The alarm lamp is used to give an alarm indication of the current working state of each aging box.

7. The system according to claim 1 or 2, characterized in that, The system further includes: a movable device, and the movable device is installed at the bottom of the aging cabinet main body; The movable device is used to move the position of the aging cabinet main body.

8. The system according to claim 1 or 2, wherein, The cabinet door is a horizontally sliding push-pull door. Horizontal sliding grooves are respectively formed at the top and bottom of the inner walls of multiple aging boxes in the same horizontal direction. The push-pull doors of the aging boxes in the same horizontal direction slide left and right in the horizontal sliding grooves; or, The cabinet door is connected to the horizontal partition in the aging box through a hinge to turn the cabinet door upward or downward.

9. The system according to claim 1 or 2, characterized in that, The system further includes: a host computer and an input / output IO control board. One end of the programmable power supply is electrically connected to the host computer, the other end of the programmable power supply is connected to the IO control board, and the IO control board provides power for multiple measured vehicle-mounted device through multiple adapter boards and multiple wiring harnesses; The vehicle-mounted device detection apparatus includes a Controller Area Network (CAN) / Controller Area Network with Flexible Data-Rate (CANFD) module, a vehicle-mounted Ethernet conversion module, a current acquisition module, a voltage acquisition module, and a resistive load board, where, One end of the CAN / CANFD module is electrically connected to the host computer, and the other end of the CAN / CANFD module is electrically connected to the measured vehicle-mounted device through an adapter board and a wiring harness; One end of the vehicle-mounted Ethernet conversion module is connected to the Ethernet interface of the host computer, and the other end of the vehicle-mounted Ethernet conversion module is connected to the measured vehicle-mounted device through the adapter board and the wiring harness; One end of the current acquisition module is electrically connected to the host computer, and the other end of the current acquisition module is electrically connected to the measured vehicle-mounted device through the adapter board and the wiring harness; One end of the voltage acquisition module is electrically connected to the host computer. After the other end of the voltage acquisition module is connected to the resistive load board, it is electrically connected to the measured vehicle-mounted device through the adapter board and the wiring harness.

10. The system according to claim 9, characterized in that, The vehicle-mounted device detection apparatus further includes: a switch, One end of the vehicle-mounted Ethernet conversion module is connected to the Ethernet interface of the host computer through the switch, and the other end of the vehicle-mounted Ethernet conversion module is connected to the measured vehicle-mounted device through the adapter board and the wiring harness.

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