An electronic system and testing method for production line testing

Abstract

The present invention belongs to the field of in-vehicle electronic technology, and particularly relates to a production line test electronic system and a test method. Through a signal output unit, a conversion unit, and a display unit, the signal output unit is electrically connected to the conversion unit, and the conversion unit is electrically connected to the display unit. The signal output unit is adapted to output video data and / or control signals, and the conversion unit is adapted to convert the video data and / or control signals output by the signal output unit into a data format adapted to the display unit, so as to perform display through the display unit according to the converted video data and / or control signals. An LCD is used for display in the display unit, which reduces costs and facilitates direct visual observation by operators.

Description

Technical Field

[0001] The present invention belongs to the field of in-vehicle electronic technology, and particularly relates to a production line test electronic system and a test method. Background Art

[0002] With the application of DLP technology and microLED technology in vehicle lights, the imaging and interaction functions of vehicle lights have become a reality, which brings great convenience to the assisted automatic driving function. As Figure 1 shown, the DLP vehicle light module mainly consists of three parts: a DLP controller, an LVDS cable, and a DLP vehicle light. The production and testing of the DLP vehicle light controller have put forward new requirements for production jigs. In the stage of producing the DLP controller, the most direct way is to use the DLP vehicle light as a test equipment to test whether the display function of the DLP controller is normal.

[0003] The application of DLP technology and microLED technology in vehicle lights enables vehicle lights to project very complex and rich content, which provides great help for assisted automatic driving. The emergence of DLP vehicle lights and microLED vehicle lights has led to the corresponding development and production of controllers. These technologies not only put forward new requirements in the development stage, but also pose new requirements and challenges to current vehicle light production enterprises in the production test link. In the DLP vehicle light controller production line, it is necessary to test the display function of the DLP vehicle light controller. If the DLP vehicle light is used as a test equipment, not only the cost is high, but also the high brightness of the DLP vehicle light is likely to damage the operator's eyes and cause harm to the health of employees.

[0004] Therefore, based on the above technical problems, it is necessary to design a new production line test electronic system and a test method. Summary of the Invention

[0005] The purpose of the present invention is to provide a production line test electronic system and a test method.

[0006] To solve the above technical problems, the present invention provides a production line test electronic system, including:

[0007] A signal output unit,

[0008] A conversion unit, and

[0009] A display unit, the signal output unit is electrically connected to the conversion unit, the conversion unit is electrically connected to the display unit, the signal output unit is adapted to output video data and / or control signals, and the conversion unit is adapted to convert the video data and / or control signals output by the signal output unit into a data format adapted to the display unit, so as to perform display through the display unit according to the converted video data and / or control signals.

[0010] Furthermore, the signal output unit includes: a DLP headlight controller;

[0011] The DLP headlight controller is adapted to output video data and / or control signals.

[0012] Furthermore, the conversion unit includes: an adapter board;

[0013] A plurality of deserializers are provided on the adapter board;

[0014] The deserializer is adapted to convert the video data and / or control signals into a data format adapted to the display unit.

[0015] Furthermore, the display unit includes: an LCD display screen;

[0016] The LCD display screen is adapted to perform display according to the video data and / or control signals converted by the conversion unit.

[0017] Furthermore, the signal output unit and the conversion unit are adapted to be connected by an LVDS cable.

[0018] Furthermore, the LVDS cable is adapted to be a coaxial cable, a shielded twisted pair, and a shielded quadruplex wire.

[0019] Furthermore, the video output interface of the signal output unit is adapted to be an HDMI, MIPI DSI, RGB, and eDP interface.

[0020] On the other hand, the present invention also provides a test method using the above production line test electronic system, including:

[0021] Converting, by the conversion unit, the video data and / or control signals output by the signal output unit into a data format adapted to the display unit, so that the display unit performs display according to the converted video data and / or control signals.

[0022] The beneficial effect of the present invention is that the present invention includes a signal output unit, a conversion unit, and a display unit. The signal output unit is electrically connected to the conversion unit, and the conversion unit is electrically connected to the display unit. The signal output unit is adapted to output video data and / or control signals. The conversion unit is adapted to convert the video data and / or control signals output by the signal output unit into a data format adapted to the display unit, so that the display unit performs display according to the converted video data and / or control signals. An LCD is used for display in the display unit, which reduces costs and facilitates direct visual observation by the operator.

[0023] Other features and advantages of the present invention will be set forth in the following description, and in part will be obvious from the description, or may be learned by practice of the present invention. The objectives and other advantages of the present invention are realized and attained by the structure particularly pointed out in the specification and the drawings.

[0024] To make the above objectives, features, and advantages of the present invention more comprehensible, the following provides preferred embodiments in conjunction with the accompanying drawings and describes them in detail as follows. Brief Description of the Drawings

[0025] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for the description of the specific embodiments or the prior art. Obviously, the drawings in the following description are some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0026] Figure 1 is a schematic block diagram of a testing device in the prior art;

[0027] Figure 2 is a schematic block diagram of the production line testing electronic system of the present invention;

[0028] Figure 3 is a specific schematic block diagram of the production line testing electronic system of the present invention. Detailed Description of the Embodiments

[0029] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the following will clearly and completely describe the technical solutions of the present invention in conjunction with the drawings. Obviously, the described embodiments are some, but not all, of the embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts fall within the scope of protection of the present invention.

[0030] Embodiment 1

[0031] Such as Figure 2 And Figure 3As shown, this embodiment 1 provides a production line test electronic system, including: a signal output unit, a conversion unit, and a display unit, the signal output unit is electrically connected to the conversion unit, the conversion unit is electrically connected to the display unit, the signal output unit is suitable for outputting video data and / or control signals, and the conversion unit is suitable for converting the video data and / or control signals output by the signal output unit into a data format adapted to the display unit, so as to display the converted video data and / or control signals through the display unit; the DLP car light controller is generally installed at a position far away from the car light. In order to ensure the stability of transmission, the DLP car light controller transmits the video data / control signal to the DLP car light via an LVDS cable. The video output of the DLP car light controller generally adopts a coaxial cable or an HSD interface. Ordinary LCDs are generally in the form of interfaces such as RGB / MIPI DSI. In the test equipment, the LVDS cable can remain unchanged. An adapter board needs to be developed between the LVDS cable and the ordinary LCD to complete the data format conversion from the LVDS signal to the RGB / MIPI DSI interface; since ordinary LCDs and DLP car lights have the same display function, during the production line testing phase, the test equipment made of ordinary LCDs is used to complete the test of the display function of the DLP car light controller. DLP car lights have a relatively high resolution and can display complex graphic content. Although LCD and DLP display technologies are implemented in different technologies, they are basically the same in display characteristics and display interfaces. Taking advantage of this feature, ordinary LCDs can be used as test equipment during the production phase to complete production testing of the display function of the DLP controller.

[0032] In this embodiment, the signal output unit includes: a DLP headlight controller; the DLP headlight controller is suitable for outputting video data and / or control signals; the DLP headlight controller is the device under test, and its basic function is to parse the signals of the vehicle body host and each control unit, control the DLP headlight to output specific high and low beam light shapes, project display content, etc. The core processing unit of the DLP headlight controller is the processor, which outputs the display content through the processor video output interface. The video output interface of the processor generally has HDMI, MIPI DSI, RGB, eDP and other interface forms. In order to realize long-distance transmission of video on the vehicle and meet the requirements of vehicle regulations, it is necessary to add a serializer to convert the video output interface signal of the processor into LVDS signal transmission.

[0033] In this embodiment, the conversion unit includes: an adapter board; a plurality of deserializers are provided on the adapter board; the deserializers are adapted to convert video data and / or control signals into a data format adapted to the display unit; the adapter board completes the protocol conversion from the LVDS signal to the interface of a common LCD display screen. The deserializer is the core device on the adapter board. For different LVDS transmission standards, deserializers from different manufacturers / models are selected to convert the LVDS signal into a signal for the interface of a common LCD display screen.

[0034] In this embodiment, the display unit includes: an LCD display screen; the LCD display screen is adapted to perform display according to the video data and / or control signals converted by the conversion unit; a common LCD display screen is used to replace the DLP vehicle headlight and complete the display function of the DLP vehicle headlight controller. Both the LCD display screen and the DLP vehicle headlight are high-resolution display devices. An LCD display screen with the same resolution and the same display interface can be selected as the test equipment for the DLP vehicle headlight controller. Compared with the DLP vehicle headlight, the common LCD display screen has the characteristics of low cost and low brightness. It has obvious advantages in reducing the production cost of the production line and preventing damage to the operator's eyes. In specific implementation, commercial DLP / LCD / LCOS projectors are similar to the common LCD display screen in terms of cost and brightness. They can all accept the operation method of direct observation by the naked eye. Therefore, commercial projectors and display screens are also an optional form of the common LCD display screen.

[0035] In this embodiment, the signal output unit and the conversion unit are adapted to be connected through an LVDS cable; the LVDS cable is used for long-distance transmission of video signals and control signals. The transmission standards supported by the LVDS cable include APIX, FPD-LINK III, GMSL, ClocklessLink, etc. For different transmission standards, the LVDS cable can be implemented in ways such as coaxial cable, shielded twisted pair, shielded quadruplex wire, etc. To ensure the accuracy of the test of the DLP vehicle headlight controller, the LVDS cable can use the cable supporting the DLP vehicle headlight.

[0036] In this embodiment, the video output interface of the signal output unit is adapted to adopt HDMI, MIPI DSI, RGB, and eDP interfaces.

[0037] Embodiment 2

[0038] Based on Embodiment 1, this Embodiment 2 also provides a test method using the production line test electronic system in Embodiment 1, including: converting the video data and / or control signals output by the signal output unit into a data format adapted to the display unit through the conversion unit, so that the display unit performs display according to the converted video data and / or control signals.

[0039] In summary, the present invention includes a signal output unit, a conversion unit, and a display unit. The signal output unit is electrically connected to the conversion unit, and the conversion unit is electrically connected to the display unit. The signal output unit is adapted to output video data and / or control signals. The conversion unit is adapted to convert the video data and / or control signals output by the signal output unit into a data format adapted to the display unit, so that the display unit can perform display according to the converted video data and / or control signals. An LCD is used for display in the display unit, which reduces costs and facilitates direct visual observation by the operator.

[0040] In several embodiments provided by the present application, it should be understood that the disclosed devices and methods can also be implemented in other ways. The device embodiments described above are merely illustrative. For example, the flowcharts and block diagrams in the accompanying drawings show the possible architectures, functions, and operations of devices, methods, and computer program products according to multiple embodiments of the present invention. In this regard, each block in the flowchart or block diagram may represent a module, a program segment, or a part of code, and the module, program segment, or part of code contains one or more executable instructions for implementing the specified logical function. It should also be noted that in some alternative implementations, the functions marked in the blocks may occur in a different order than marked in the accompanying drawings. For example, two consecutive blocks may actually be executed substantially in parallel, and they may sometimes be executed in the reverse order, depending on the functions involved. It should also be noted that each block in the block diagram and / or flowchart, as well as the combination of blocks in the block diagram and / or flowchart, can be implemented by a dedicated hardware-based system for performing the specified functions or actions, or can be implemented by a combination of dedicated hardware and computer instructions.

[0041] In addition, in each embodiment of the present invention, the various functional modules may be integrated together to form an independent part, or each module may exist separately, or two or more modules may be integrated to form an independent part.

[0042] When the above-mentioned functions are implemented in the form of software function modules and sold or used as independent products, they can be stored in a computer-readable storage medium. Based on such an understanding, the technical solution of the present invention, in essence, or the part that contributes to the prior art, or a part of the technical solution, can be embodied in the form of a software product. The 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 steps of the methods described in various embodiments of the present invention. The foregoing storage medium includes: various media such as USB flash drives, mobile hard disks, read-only memories (ROMs), random access memories (RAMs), magnetic disks, or optical discs that can store program codes.

[0043] Inspired by the ideal embodiments of the present invention described above, through the above description, relevant staff can, without departing from the technical idea of the present invention, make various changes and modifications. The technical scope of the present invention is not limited to the content in the specification, and its technical scope must be determined according to the scope of the claims.

Claims

1. An electronic system for production line testing, characterized in that, Comprising: A signal output unit, comprising: a DLP headlight controller; The DLP headlight controller is adapted to output video data and / or control signals; A conversion unit, comprising: an adapter board; A plurality of deserializers are provided on the adapter board; The deserializer is adapted to convert video data and / or control signals into a data format adapted to the display unit; And A display unit, comprising: an LCD display screen; The LCD display screen is adapted to display according to the video data and / or control signals converted by the conversion unit; The signal output unit is electrically connected to the conversion unit, the conversion unit is electrically connected to the display unit, the signal output unit is adapted to output video data and / or control signals, and the conversion unit is adapted to convert the video data and / or control signals output by the signal output unit into a data format adapted to the display unit, so as to be displayed by the display unit according to the converted video data and / or control signals; In the production line test stage, a test equipment made of an LCD display screen is used to complete the test of the display function of the DLP headlight controller.

2. The production line test electronic system according to claim 1, wherein The signal output unit and the conversion unit are adapted to be connected by an LVDS cable.

3. The production line test electronic system according to claim 2, wherein The LVDS cable is adapted to use coaxial cable, shielded twisted pair and shielded quadruplex wire.

4. The production line test electronic system according to claim 1, wherein The video output interface of the signal output unit is adapted to use HDMI, MIPI DSI, RGB and eDP interfaces.

5. A test method for testing an electronic system of a production line as described in claim 1, characterized in that, Comprising: The conversion unit converts the video data and / or control signals output by the signal output unit into a data format adapted to the display unit, so as to be displayed by the display unit according to the converted video data and / or control signals.

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