A universal durability testing bench for automotive smart car screens

Abstract

This utility model discloses a universal durability testing bench for automotive intelligent car screens, relating to the field of automotive component reliability testing technology. The utility model includes testing equipment, testing fixtures, and a temperature control camera system. The testing equipment includes a host computer monitoring system, a high-voltage power distribution unit, a screen display unit, a product power supply module, a signal measurement module, a temperature monitoring module, a product communication module, and a screen driving module. The testing fixture includes a fixture frame, with a camera system mounting bracket on the side wall of the fixture frame. The temperature control camera system includes a metal shell and heat dissipation devices. This utility model solves the problem that ordinary cameras cannot work for extended periods in high and low temperature environments, and also solves the problem of not being able to simultaneously monitor multiple screens in real time. Through systematic hardware and software integration, it saves space and improves efficiency. Furthermore, through modular design, it solves the compatibility issues of various types of automotive screens.

Description

Technical Field

[0001] This utility model relates to the field of automotive component reliability testing technology, specifically a universal durability testing bench for automotive smart car screens. Background Technology

[0002] With the development of modern automotive intelligence, in-vehicle screens have become an indispensable in-vehicle device. More and more vehicles are equipped with at least three or more in-vehicle screens, and many safety functions are integrated into the control of the screen. Therefore, the stability and functional safety of in-vehicle screens have become increasingly important, and checking the working status of the screen in various environments is also essential.

[0003] Especially in winter and summer, and in some extreme regions, the temperature inside the car cabin is extremely low or high. The screen is directly exposed to this extreme environment, and whether the screen can work properly will directly affect whether the vehicle can be used normally.

[0004] Traditional screen environmental reliability testing is limited by the size of the environmental chamber and the operating temperature of the camera. During testing, the screen is simply placed in a high and low temperature environmental chamber, and the screen display function is checked manually. This method cannot achieve real-time monitoring of screen display data and is prone to missing a lot of actual data. In order to address the above problems, the inventors have proposed a universal durability test bench for automotive smart car screens. Utility Model Content

[0005] To address the limitations of traditional screen environmental reliability testing, which is constrained by the size of the environmental chamber and the operating temperature of the camera, making it impossible to achieve real-time monitoring of screen display data and easily missing a lot of actual data, the purpose of this utility model is to provide a universal durability testing bench for automotive smart car screens.

[0006] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: a universal durability test bench for automotive intelligent car screens, including test equipment, test fixtures, and a temperature control camera system. The test equipment includes a host computer monitoring system, a high-voltage power distribution unit, a screen display unit, a product power supply module, a signal measurement module, a temperature monitoring module, a product communication module, and a screen driving module. The test fixture includes a fixture frame, and the temperature control camera system includes a metal shell and heat dissipation devices.

[0007] Preferably, the front of the power distribution unit is provided with a 220V output interface, an emergency stop device, and a master control switch. The back of the power distribution unit 1 is provided with a 220V input interface, a 220V output interface, a 12V output interface, a 24V output interface, a 5V output interface, and a leakage protection circuit breaker. The screen display unit includes a display panel, a power supply system, and a switch button. In use, the test equipment is connected to the temperature control camera system via a network cable to control the camera to capture red, green, and blue images of the vehicle-mounted screen displayed in a test fixture placed in a high and low temperature environment. The captured images are saved. The host computer test software in the test equipment performs image analysis on the captured images, analyzes parameters such as brightness and chromaticity, and identifies screen image parameters when there is screen flickering or distorted display through algorithms. The images of screen flickering or distorted display are saved locally for analysis by the operator.

[0008] Preferably, the side wall of the fixture frame is provided with a camera system fixing bracket and a first fixing bracket. The temperature-controlled camera system can automatically turn on the heat dissipation and heating devices according to the temperature changes in the environmental chamber to ensure that the camera in the temperature-controlled camera system can work normally. The temperature-controlled camera system also includes a second fixing bracket, a signal interface, and a camera viewfinder. The temperature-controlled camera system has the function of actively adjusting the temperature of the camera compartment. It can actively adjust the working environment temperature of the camera according to the temperature changes of the external environment, so that the industrial camera can be used in high and low temperature environments, such as in environments from -40 degrees Celsius to 85 degrees Celsius. In actual use, it can be connected through a wiring harness so that the test equipment, test fixture, and temperature-controlled camera system can form a complete universal durability test bench for automotive intelligent car screens.

[0009] Compared with the prior art, the beneficial effects of this utility model are as follows: it solves the problem that ordinary cameras cannot work for a long time in high and low temperature environments, and it solves the problem that multiple screens cannot be monitored in real time at the same time. Furthermore, through systematic hardware and software integration, it saves space and improves efficiency. In addition, through modular design, it solves the compatibility problem of multiple types of vehicle screens. Attached Figure Description

[0010] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0011] Figure 1 This is a schematic diagram of the structure of the testing equipment of this utility model.

[0012] Figure 2This is a schematic diagram of the test fixture structure of this utility model.

[0013] Figure 3 This is a schematic diagram of the temperature control camera structure of this utility model.

[0014] In the diagram: 1. High-voltage power distribution unit; 2. Screen display unit; 3. Product power supply module; 4. Product communication module; 5. Signal measurement module; 6. Screen driver module; 7. Temperature monitoring module; 8. Host computer monitoring system; 9. Camera system mounting bracket; 10. Fixture frame; 11. First mounting bracket; 12. Second mounting bracket; 13. Heat dissipation device; 14. Signal interface; 15. Metal housing; 16. Camera viewfinder; 17. Test equipment; 18. Test fixture; 19. Temperature control camera system. Detailed Implementation

[0015] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0016] Example: Figure 1-3 As shown, this utility model provides a universal durability test bench for automotive smart car screens, including a test device 17, a test fixture 18, and a temperature control camera system 19. The test device 17 includes a host computer monitoring system 8, a high-voltage power distribution unit 1, a screen display unit 2, a product power supply module 3, a signal measurement module 5, a temperature monitoring module 7, a product communication module 4, and a screen driving module 6. The test fixture 18 includes a fixture frame 10, and the temperature control camera system 19 includes a metal shell 15 and a heat dissipation device 13.

[0017] The front of the power distribution unit 1 is equipped with a 220V output interface, an emergency stop device, and a main control switch. The back of the power distribution unit 1 is equipped with a 220V input interface, a 220V output interface, a 12V output interface, a 24V output interface, a 5V output interface, and a leakage protection circuit breaker. The screen display unit 2 includes a display panel, a power supply system, and switch buttons.

[0018] By adopting the above technical solution, when in use, the test equipment 17 is connected to the temperature control camera system 19 via a network cable, and controls the camera to capture red, green, and blue images of the vehicle screen displayed on the test fixture 18, which is placed in a high and low temperature environment. The captured images are saved. The host computer test software in the test equipment 17 performs image analysis on the captured images, analyzes the brightness, color and other parameters of the images, and identifies the screen image parameters when there is screen flickering or distorted display through an algorithm. The images of screen flickering or distorted display are saved locally for the operator to use for analysis.

[0019] The side wall of the clamp frame 10 is provided with a camera system fixing bracket 9 and a first fixing bracket 11.

[0020] By adopting the above technical solution, the temperature control camera system 19 can automatically turn on the heat dissipation and heating devices according to the temperature changes in the environmental chamber, ensuring that the camera in the temperature control camera system 19 can work normally.

[0021] The temperature-controlled camera system 19 also includes a second mounting bracket 12, a signal interface 14, and a camera viewfinder 16.

[0022] By adopting the above technical solution, the temperature control camera system 19 has the function of actively adjusting the temperature of the camera compartment. It can actively adjust the working environment temperature of the camera according to the temperature changes of the external environment, so that the industrial camera can be used in high and low temperature environments, such as in environments from -40 degrees Celsius to 85 degrees Celsius. In actual use, it can be connected by a wiring harness so that the test equipment 17, the test fixture 18, and the temperature control camera system 19 can form a complete universal durability test bench for automotive intelligent car screens.

[0023] Working principle: When using this invention, installation and adjustment are performed before testing, fixing the vehicle screen to be tested on... Figure 2 The test fixture 18 uses a three-row, two-column layout, supporting the installation of up to six vehicle screens. Next, each vehicle screen is connected to its signal and power harnesses, which are then led out to the outside of the environmental test chamber. Then... Figure 3 The second mounting bracket 12 of the temperature control camera system 19 is fixed on Figure 2 The signal interface 14 of the temperature control camera system 19 on the camera system mounting bracket 9 of the test fixture 18 is connected to the outside of the environmental chamber via a wiring harness.

[0024] Next, testing was conducted. First, the signal harness and power supply harness of the vehicle screen were led out to the outside of the environmental box and connected to... Figure 1 The screen driver module 6 and signal measurement module 5 on the test equipment 17 are then connected to the signal harness of the temperature control camera system 19 leading out to the outside of the environmental chamber. Figure 1Next, open the host computer monitoring software inside the test device 17, configure the software parameters, and click the test start button to execute the software function and monitor the data in real time. Finally, after the test is completed, disconnect the connection harness on the test device 17, remove the vehicle screen from the test fixture 18, and remove the temperature control camera system 19 from the test fixture 18.

[0025] All standard parts used in this invention can be purchased from the market, and irregular parts can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art, and the circuit connection adopts conventional connection methods in the prior art, which will not be described in detail here.

[0026] Obviously, those skilled in the art can make various modifications and variations to this utility model without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this utility model and their equivalents, this utility model also intends to include these modifications and variations.

Claims

1. A general-purpose endurance test bench for intelligent automotive screens, comprising a test device (17), a test fixture (18) and a temperature-controlled camera system (19), characterized in that: The test equipment (17) includes a host computer monitoring system (8), a high-voltage distribution unit (1), a screen display unit (2), a product power supply module (3), a signal measurement module (5), a temperature monitoring module (7), a product communication module (4), and a screen driving module (6). The test fixture (18) includes a fixture frame (10), and the temperature control camera system (19) includes a metal shell (15) and a heat dissipation device (13).

2. The universal durability test bench for intelligent automotive screen of an automobile according to claim 1, characterized in that, The front of the power distribution unit (1) is equipped with a 220V output interface, an emergency stop device, and a master control switch.

3. The universal durability test bench for intelligent automotive screen of a vehicle according to claim 1, characterized in that, The back of the power distribution unit (1) is provided with a 220V input interface, a 220V output interface, a 12V output interface, a 24V output interface, a 5V output interface, and a leakage protection circuit breaker.

4. The universal durability test bench for intelligent automotive screen of a car according to claim 1, characterized in that, The screen display unit (2) includes a display panel, a power supply system, and a switch button.

5. The universal durability test bench for intelligent automotive screen of a car according to claim 1, characterized in that, The side wall of the clamp frame (10) is provided with a camera system fixing bracket (9) and a first fixing bracket (11).

6. The universal durability test bench for intelligent automotive screen of a vehicle according to claim 1, characterized in that, The temperature control camera system (19) also includes a second fixed bracket (12), a signal interface (14), and a camera viewfinder (16).

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