Automobile electronic component DUT test matching control system

Abstract

The utility model discloses an automobile electronic component DUT test matching control system, which comprises a control unit, DUT equipment to be tested and temperature detection equipment, wherein the DUT equipment to be tested and the temperature detection equipment are arranged in a temperature box; the DUT equipment is connected with the input end of the control unit; the DUT equipment is an electronic component to be tested and is configured to be in a working state, and working state data of the DUT equipment is sent to the control unit; the temperature detection equipment is used for detecting temperature data of the DUT equipment in a working state, and the output end of the temperature detection equipment is connected to the input end of the control unit; and the control unit sends the working state data of the DUT and the corresponding temperature data to the monitoring equipment through the multi-channel output loop. The method has the advantages that matching of the temperature data and the test data is achieved in the mode that the to-be-tested device and the temperature data are forwarded at the same time in the DUT test process, and meanwhile two output interfaces are provided in the dual-mode output mode to meet the requirements of different PC devices of a user for data receiving.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of automobile electronic testing, especially relates to a kind of automobile electronic component DUT test matching control system. BACKGROUND

[0002] Automobile electronic component needs to be tested in the development process even in the review process, and DUT testing, namely Design Under Test, refers to the design to be tested.In the field of electronic design, DUT usually refers to the chip, circuit board or system to be tested.It is the object to be verified or tested in the entire verification and testing process, and the stability of its performance and function directly affects the quality and reliability of the final product.

[0003] When testing DUT components, test verification not only targets functional integrity but also targets experimental verification of operating parameters of electrical components at different temperatures;For example, the patent application number 202111644717.6 of the cold and hot impact rapid test detection device of automobile electronic component, which can test automobile electronic components at different temperatures through heating wire.

[0004] During the DUT testing process of electrical components, the output parameters of the DUT device at different temperatures are monitored to verify the working state of the automobile component DUT device to be tested at different high temperatures.However, there are still defects in the matching collection of output data and temperature of existing electrical component devices, and it cannot support multiple data output reception, causing the device data receiving device to be incompatible, and the conventional way is to monitor the data separately, and the DUT data is output separately, which requires time to match the two. UTILITY MODEL CONTENT

[0005] The utility model aims at overcoming the defects of prior art, and provides a kind of automobile electronic component DUT test matching control system, which realizes the matching of temperature data and test data by the way of simultaneously forwarding temperature data and test data of the device to be tested during DUT testing process, and provides two output interfaces by the way of double-mode output to meet the needs of different PC devices for data reception.

[0006] In order to achieve the above purpose, the utility model adopts the technical scheme: a kind of automobile electronic component DUT test matching control system, including control unit and the DUT device to be tested in temperature box and temperature detection device;

[0007] The DUT device is connected with the input end of the control unit.

[0008] The DUT device is an electronic component to be tested, which is configured to be in an operating state, and the operating state data thereof is transmitted to the control unit;

[0009] The temperature detection device is used for detecting the temperature data of the DUT device in the operating state, and the output end thereof is connected to the input end of the control unit;

[0010] The control unit transmits the operating state data of the DUT and the corresponding temperature data to the monitoring device through the multi-channel output loop.

[0011] The multi-channel loop comprises a CAN transmission loop and a serial port transmission loop.

[0012] The output end of the control unit is connected to the CAN transmission loop and the serial port transmission loop, respectively.

[0013] The monitoring device acquires the operating state data of the DUT and the corresponding temperature data through the CAN monitoring device or the serial port monitoring device.

[0014] A switch is arranged on the temperature box, and the switch is connected to the control unit, and is used for controlling the switch to select one of the multi-channel loops to output data.

[0015] The control unit is connected to a timer, and is used for periodically transmitting data through the multi-channel loop.

[0016] The temperature box is internally provided with a temperature regulator, and a temperature control panel is arranged on the box body of the temperature box, and the temperature control panel is connected to the temperature regulator, and is used for setting the temperature curve parameters of the temperature box.

[0017] The control unit is connected to the temperature regulator, and is used for acquiring the current set temperature parameters.

[0018] The monitoring device comprises a computer.

[0019] The present application has the advantages that the temperature data and the test data are matched by simultaneously forwarding the to-be-tested device and the temperature data during the DUT test process, and two output interfaces are provided by the dual-mode output to meet the data receiving requirements of different PC devices of users. BRIEF DESCRIPTION OF DRAWINGS

[0020] The contents expressed by each drawing of the present application and the marks in the drawings are briefly described as follows:

[0021] Figure 1 It is a control principle diagram of the matching test control system of the present application;

[0022] Figure 2 It is an internal schematic view of the temperature box of the present application. DETAILED DESCRIPTION

[0023] The specific embodiments of the present application will be further described in detail below with reference to the drawings.

[0024] The embodiment provides a matching control system for DUT testing of automobile electronic components, realizes matching of temperature data and test data by simultaneously forwarding the to-be-tested equipment and temperature data in the DUT testing process, and simultaneously provides two output interfaces by means of double-mode output, so as to meet the needs of different PC devices of users for data reception. The scheme is as follows:

[0025] As shown in Figure 1 , 2 An automobile electronic component DUT testing matching control system comprises a control unit and to-be-tested DUT equipment and temperature detection equipment arranged in a temperature box.

[0026] The output ends of the DUT equipment and the temperature detection equipment are connected with the input end of the control unit.

[0027] The DUT equipment is to-be-tested electronic components, which are configured to work in a state, continuously work in the temperature box and send working state data to the control unit.

[0028] The temperature detection equipment is used for collecting temperature data of the DUT equipment in the working state, and the output end thereof is connected with the input end of the control unit, so as to send the collected temperature data to the control unit. The temperature detection equipment adopts various devices such as temperature sensors and infrared temperature detection devices to detect the temperature of the to-be-tested DUT equipment, and preferably adopts a patch type temperature sensor to collect the temperature data of the DUT.

[0029] The control unit is a core component in the scheme, has data processing and conversion functions, is developed by using an STM32 series single-chip microcomputer or a 51 series single-chip microcomputer development board, and is arranged outside the temperature box because the temperature in the temperature box changes and has a response to the working of the control unit, so as to reduce the influence of the temperature on the control unit. The control unit is preferably integrated on the temperature box shell, so that the control unit does not need to be high-temperature resistant, and an ordinary version development board can be selected when the single-chip microcomputer development board is selected.

[0030] The control unit sends the working state data of the DUT and the corresponding temperature data to the monitoring equipment through a multi-channel output loop.

[0031] The monitoring device is mainly a device for test personnel to obtain data, which can generally use professional devices or PC computers installed with professional monitoring software. The monitoring device displays the obtained data to achieve the purpose of DUT testing. The monitoring device includes a computer, and the corresponding CAN data analysis and serial port data analysis software can be installed on the computer to achieve the purpose. Meanwhile, the computer needs to have a serial port or a CAN port to obtain the corresponding data. Professional analysis software such as MobaXterm and CANoe can analyze the obtained data through software programs.

[0032] The multi-channel circuit is used to match different monitoring devices. Since the monitoring device can support different connection ports, the multi-channel mode is used to match different monitoring devices. The monitoring device is connected to the multi-channel circuit according to the ports thereof.

[0033] Preferably, the multi-channel circuit includes two channels, namely a CAN sending circuit and a serial port sending circuit. The output end of the control unit is connected to the CAN sending circuit and the serial port sending circuit. The CAN sending circuit includes a CAN chip, which is used to convert the information from the control unit into CAN information and send it out. The serial port sending circuit includes a serial port chip and a corresponding interface, which is used to convert the information from the control unit into serial port information and send it out through the serial port.

[0034] The monitoring device obtains the working state data and the corresponding temperature data of the DUT through the CAN monitoring device or the serial port monitoring device. The monitoring device obtains the working data and real-time temperature data of the DUT through the built-in or externally connected CAN monitoring device or serial port monitoring device. The monitoring device can select whether to connect to the CAN sending circuit or the serial port sending circuit according to its own hardware resources. In this way, the monitoring PC can support one of the communication interface circuits to complete the acquisition of data, thereby improving the compatibility.

[0035] The working principle is as follows: the DUT device is placed in the temperature box to make it in a working state. Then, the control unit obtains the temperature of the detected DUT device and the data signal from the DUT in real time. Both of them are received by the control unit. Since both of them are connected to the control unit, the data is synchronized. Therefore, the timing of the control unit when sending data is also synchronized. Therefore, the data received at the PC end is also time-synchronized, which avoids the problem of data timing matching. Meanwhile, when the control unit sends data, it can be output through the two circuits respectively. In this way, it can support the needs of different monitoring PCs. The monitoring PC selects the CAN circuit or the serial port circuit to receive and obtain the corresponding matching temperature and DUT information according to its own hardware link resources or software resources, thereby achieving the purpose of supporting two circuits to send information and matching the timing of temperature and DUT information.

[0036] In a preferred embodiment, a switch is arranged on the temperature box, and the switch is connected with the control unit, and is used for controlling the switch to select one of the multi-channel circuits to output data. The switch can be an electronic switch or a mechanical switch, and the control unit switches one of the CAN transmission circuit or the serial port transmission circuit to transmit data according to the signal of the switch, so that the data is transmitted in a targeted manner, and the other unused circuit is closed to save power consumption.

[0037] In the embodiment, the control unit is connected with a timer, and is used for periodically timing the transmission of data through the multi-channel circuit. The control unit periodically transmits the DUT information and the detected temperature to the CAN monitoring device or the serial port monitoring device, and the monitoring PC transmits the CAN signal of the DUT and the detection device to the PC in real time through the CAN monitoring device or transmits the serial port data of the DUT and the detection device to the PC in real time through the serial port monitoring device. Since the temperature and the DUT timing received by the control unit are corresponding, the timing is also corresponding when the data is transmitted, and the timing is corresponding after the data is received at the PC, so that the process of timing matching is reduced.

[0038] In a preferred scheme of the embodiment, the temperature box is provided with a temperature regulator, and a temperature control panel is arranged on the box body of the temperature box, and the temperature control panel is connected with the temperature regulator. The temperature curve parameters of the temperature box are set through the temperature control panel, and the temperature curve parameters are sent to the temperature regulator, and the temperature regulator performs a control operation to realize that the temperature in the temperature box meets the requirements of the test. Further, the DUT test can also need to set temperature parameters, so the control unit can be connected with the temperature regulator, the current set temperature parameters of the temperature regulator are acquired through communication, and then the control unit sends the temperature parameters to the PC together with the DUT information and the temperature information, so that the full parameters of the DUT test process are collected and acquired, and the basic parameters are provided for subsequent test evaluation.

[0039] The above scheme has the advantages of strong compatibility, convenient use and low cost, and is suitable for different data output types. Different modes can be selected according to the characteristics of each project to realize the advantage of strong compatibility. In the scheme, multiple outputs are adopted, which can be selected according to different output requirements, and the output data is real-time, which can match the real time and the relative time without manual matching.

[0040] Obviously, the specific implementation of the present application is not limited to the above manner, and various non-essential improvements made by adopting the method concept and technical scheme of the present application are within the protection scope of the present application.

Claims

1. An automotive electronic component DUT test matching control system, characterized by: It includes a control unit, a DUT device to be tested, and a temperature detection device arranged in a temperature box; The DUT device is connected to the input terminal of the control unit; The DUT device is an electronic component to be tested, which is configured to be in working state, and its working state data is sent to the control unit; The temperature detection device is used to collect temperature data of the DUT device in the working state, and its output end is connected to the input end of the control unit; The control unit sends the DUT working status data and corresponding temperature data to the monitoring device through a multi-channel output loop.

2. The automotive electronic component DUT test matching control system according to claim 1, characterized in that: The multi-channel output circuit includes a CAN transmission circuit and a serial port transmission circuit; The output end of the control unit is connected to the CAN transmission circuit and the serial port transmission circuit respectively.

3. The automotive electronic component DUT test matching control system according to claim 2, characterized in that: The monitoring device obtains the DUT working status data and corresponding temperature data through a CAN monitoring device or a serial port monitoring device.

4. The automotive electronic component DUT test matching control system according to claim 3, characterized in that: A switch is provided on the temperature box, and the switch is connected to the control unit and is used to control the switch to select one of the multi-channel circuits to output data.

5. The automotive electronic component DUT test matching control system according to claim 3, characterized in that: The control unit is connected to the timer and is used to periodically send data through the multi-channel loop.

6. An automotive electronic component DUT test matching control system according to any one of claims 1 to 5, characterized in that: The temperature box has a built-in temperature regulator, and a temperature control panel is provided on the temperature box body. The temperature control panel is connected to the temperature regulator, and the temperature curve parameters of the temperature box are set through the temperature control panel.

7. The automotive electronic component DUT test matching control system according to claim 6, characterized in that: The control unit is connected to the temperature regulator and is used to obtain the current set temperature parameters.

8. An automotive electronic component DUT test matching control system according to any one of claims 1 to 5, characterized in that: The monitoring device includes a computer.

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