Steady state data comprehensive test platform and test method thereof

Abstract

The invention discloses a steady-state data comprehensive test platform and a test method thereof, and aims to solve the problems of tedious operation and low test efficiency of existing system control and data monitoring during vehicle test. The system comprises a computer host, steady state data measurement and control software, a display screen, an operation panel and the like. According to the application, a Unity development environment is adopted and runs on a Windows system, and accurate control and real-time monitoring of a controlled quantity and simplification and unification of an operation interface are realized through data interaction with equipment; by means of communication between an upper computer and a controlled system, control over equipment is achieved, analog quantity, digital quantity and switching quantity such as voltage, current, normal distribution waveform and Poisson distribution waveform can be conveniently output, and meanwhile various data and waveforms needing to be collected can be displayed in real time. By intensively displaying the operation interfaces of a plurality of devices, a user can complete all operations on one interface, so that the operation complexity and the time cost are reduced, and the operation efficiency is improved.

Description

Technical Field

[0001] The present application relates to the field of data testing technology, and in particular to a steady-state data comprehensive testing platform and a testing method thereof. Background Art

[0002] New energy vehicles are becoming more and more popular, and the number of new energy vehicles in the whole society is continuously increasing. How to diagnose new energy vehicle failures, how to simulate failures, and reproduce vehicle failure phenomena. For vehicles in the development stage, how to simulate various failures for the vehicle, inject various interference signals, and verify in advance what phenomena will occur when a certain signal of the vehicle is interfered. The following functions are mainly realized in the system: adjustment of working voltage, adjustment of input current, output of square wave signals, sine wave signals, triangle wave signals, sawtooth wave signals, normal distribution waveforms and custom waveforms. The device also has a waveform display function, which can measure the waveforms of various signals.

[0003] The existing system has the following disadvantages:

[0004] 1. Complex operation: The existing system relies on multiple independent software. Users need to frequently switch software and interfaces when conducting tests, which can easily lead to misoperation.

[0005] 2. Poor compatibility: Different devices have different interfaces and protocols. Traditional systems have poor adaptability to devices and require constant driver updates or replacement of hardware interfaces.

[0006] 3. Real-time feedback lag: The real-time data feedback function of the existing system is not perfect, and it is difficult for users to accurately grasp the operating status of the equipment.

[0007] In summary, in the current test environment, system control and data monitoring usually rely on independent software or hardware tools. These tools have problems such as cumbersome operation, poor hardware compatibility, large differences in operation methods of different devices, inaccurate real-time feedback, etc., which make it difficult to meet the requirements of modern testing for accuracy and efficiency. Summary of the invention

[0008] To this end, the present application provides a steady-state data comprehensive test platform and a test method thereof to solve the problems of cumbersome operation and low test efficiency during vehicle testing through existing system control and data monitoring.

[0009] In order to achieve the above objectives, this application provides the following technical solutions:

[0010] In a first aspect, a steady-state data comprehensive test platform includes a cabinet, wherein a computer host, a system test cabinet, and an instrument storage cabinet are arranged inside the cabinet, and a display screen and an operation panel are arranged on the surface of the cabinet;

[0011] The computer host is internally provided with steady-state data measurement and control software, and the computer host is correspondingly connected with a variety of instruments and equipment to perform vehicle data measurement and analysis;

[0012] The operation panel is connected to the computer host and is used to operate the steady-state data measurement and control software. The operation panel is provided with a system switch, a wireless mouse and keyboard, and a plurality of interfaces. The system switch is used to control the power on and off of the computer host, the wireless mouse and keyboard are used to input operation instructions, and the plurality of interfaces are used to connect the computer host and a variety of instruments and equipment accordingly.

[0013] The display screen is connected to the computer host and is used to display the steady-state data measurement and control software interactive interface, and the operation interfaces of the various instruments and equipment are integrated into the interactive interface;

[0014] The system test cabinet is provided with a measurement panel connected to the computer host, measurement terminals connected to the measurement panel, and a system electrical schematic diagram for controlling data measurement and analysis;

[0015] The instrument storage cabinet is provided with a fault setting module, a multimeter and a plurality of connection harnesses, one end of the plurality of connection harnesses is connected to the vehicle system, and the other end is respectively connected to the measurement terminal, the fault setting module and a plurality of instruments and equipment for performing fault setting and data measurement;

[0016] The steady-state data measurement and control software is used to integrate the operation interfaces of the various instruments and equipment for vehicle data measurement and testing.

[0017] Optionally, the plurality of instruments and equipment include an oscilloscope, a signal generator and a programmable DC power supply;

[0018] The multiple interfaces include an oscilloscope measurement interface, a signal generator interface, a DC power output interface and a USB interface. The computer host is correspondingly connected to the oscilloscope, the signal generator, and the programmable DC power supply through the multiple USB interfaces. The oscilloscope measurement interface, the signal generator interface, and the DC power output interface are correspondingly connected to the vehicle system through the oscilloscope wiring harness, the signal generator wiring harness, and the DC power wiring harness, respectively.

[0019] Optionally, the operation interfaces of the various instruments and equipment include an oscilloscope operation interface, a signal generator operation interface, and a programmable DC power supply operation interface. The oscilloscope operation interface, the signal generator operation interface, and the programmable DC power supply operation interface are all displayed through the display screen. The user sets the relevant parameters of the oscilloscope, signal generator, and programmable DC power supply through the oscilloscope operation interface, the signal generator operation interface, and the programmable DC power supply operation interface, respectively.

[0020] Optionally, the fault setting module includes a short-circuit module, a fault setting harness, and multiple resistors and an adjustable resistor module, and multiple fault setting harnesses are respectively connected to the short-circuit module, the multiple resistors and the adjustable resistor module.

[0021] Optionally, the fault setting harness is a rubber head harness.

[0022] In a second aspect, a testing method for a steady-state data comprehensive testing platform includes:

[0023] 1) Initialization phase: After the integrated test platform is started, the communication connection status is first detected to ensure that the host computer and various instruments communicate normally with the vehicle system under test;

[0024] 2) Control stage: Users input control commands through the buttons, sliders and dialog boxes on the Unity interface; control commands are sent to various instruments and the vehicle system under test through the communication port, while external input signals are collected in real time and fed back to the host computer;

[0025] 3) Data monitoring stage: The collected data is displayed on the display screen; after each control operation is completed, the power status will be updated, and the user can observe the changes in the collected signal status through the display screen.

[0026] Compared with the prior art, this application has at least the following beneficial effects:

[0027] Based on further analysis and research on existing technical problems, this application provides a steady-state data comprehensive test platform and its test method, including a computer host, a system test cabinet, an instrument storage cabinet, a steady-state data measurement and control software, a display screen and an operation panel, etc.; this application adopts the Unity development environment and runs on a Windows system. By interacting with the equipment for data, it can achieve precise control of the controlled quantity, real-time monitoring and simplified and unified operation interface, making the operation of the equipment more intuitive and easy to manage, and ensuring accurate feedback of real-time data; Unity, as an efficient development platform, facilitates the visualization and interactive design of this system, allowing users to complete complex signal control and acquisition tasks in an intuitive interface; through communication between the host computer and the controlled system, it can achieve The control of the equipment can not only conveniently output analog quantities, digital quantities and switching quantities such as voltage, current, normal distribution waveform, Poisson distribution waveform, etc., but also display various data and waveforms to be collected in real time; by centrally displaying the operation interfaces of multiple devices, users can complete all operations on one interface, reducing the complexity and time cost of operations and improving operating efficiency; the graphical operation interface and real-time data feedback function enable users to operate the equipment and analyze data more intuitively; real-time display of equipment status and measurement data helps users to find problems in time and make adjustments, ensuring the accuracy and reliability of the test and improving the test accuracy: by integrating the operation interfaces of multiple devices, the display screen can support complex test tasks, such as signal interference injection, power supply fault simulation, etc., to meet the test needs of complex systems. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to more intuitively illustrate the prior art and the present application, exemplary drawings are given below. It should be understood that the specific shapes and structures shown in the drawings should not generally be regarded as limiting conditions for implementing the present application; for example, those skilled in the art are capable of easily making conventional adjustments or further optimizations to the addition / reduction / attribution division, specific shapes, positional relationships, connection methods, dimensional ratios, etc. of certain units (components) based on the technical concepts and exemplary drawings disclosed in the present application.

[0029] Figure 1 A schematic diagram of the structure of a steady-state data comprehensive test platform provided in one embodiment of the present application;

[0030] Figure 2 A system architecture diagram of a steady-state data comprehensive test platform provided for one embodiment of the present application;

[0031] Figure 3 A schematic diagram of a testing method for a steady-state data comprehensive testing platform provided in accordance with an embodiment of the present application.

[0032] Description of reference numerals:

[0033] 1. Cabinet;

[0034] 2. Operation panel; 21. System switch; 22. USB interface; 23. Oscilloscope measurement interface; 24. Signal generator interface; 25. DC power output interface;

[0035] 3. Display screen. DETAILED DESCRIPTION

[0036] The present application is further described below in detail through specific embodiments in conjunction with the accompanying drawings.

[0037] In the description of this application: unless otherwise specified, the meaning of "plurality" is two or more. The terms "first", "second", "third", etc. in this application are intended to distinguish the objects referred to, and do not have special meanings in terms of technical connotations (for example, they should not be understood as emphasizing the importance or order, etc.). Expressions such as "including", "comprising", "having", etc. also mean "not limited to" (certain units, components, materials, steps, etc.).

[0038] The terms such as "upper", "lower", "left", "right", "middle", etc. cited in this application are usually used to indicate the general relative position relationship for the purpose of intuitive understanding by referring to the drawings, and are not absolute limitations on the position relationship in the actual product.

[0039] One embodiment of the present application is a steady-state data comprehensive test platform, such as Figure 1 As shown, it includes a cabinet 1, a computer host, a system test cabinet and an instrument storage cabinet are arranged inside the cabinet 1, and a display screen 3 and an operation panel 2 are arranged on the surface of the cabinet 1;

[0040] The computer host is internally provided with steady-state data measurement and control software, which is used to carry the steady-state data measurement and control software, and the computer host is correspondingly connected with a variety of instruments and equipment to measure and analyze vehicle data;

[0041] The operation panel 2 is connected to the computer host and is used to operate the steady-state data measurement and control software. The operation panel 2 is provided with a system switch 21, a wireless mouse and keyboard, and multiple interfaces. The system switch 21 is used to control the power on and off of the computer host, the wireless mouse and keyboard are used to input operation instructions, and the multiple interfaces are used to connect to the computer host and various instruments and equipment.

[0042] The display screen 3 is connected to the computer host and is used to display the interactive interface of the steady-state data measurement and control software. Various instruments and equipment are respectively provided with separate operation interfaces, and all operation interfaces are integrated into the interactive interface;

[0043] The system test cabinet is equipped with a measurement panel, measurement terminals and system electrical schematics. The measurement panel is connected to the computer host and measurement terminals respectively to control data measurement and analysis;

[0044] The instrument storage cabinet is equipped with a fault setting module, a multimeter and multiple connection harnesses. One end of the multiple connection harnesses is connected to the vehicle system, and the other end of the multiple connection harnesses is respectively connected to the measurement terminal, the fault setting module, and a variety of instruments and equipment, which are used to assist in fault setting, conduct vehicle signal interference testing, vehicle control strategy testing, sensor working principle testing, vehicle computer working principle testing, vehicle data measurement, etc.

[0045] Steady-state data measurement and control software is used to integrate the operating interfaces of various instruments and equipment for vehicle data measurement and testing.

[0046] Preferably, the multiple instruments and equipment include an oscilloscope, a signal generator and a programmable DC power supply; the multiple interfaces include an oscilloscope measurement interface 23, a signal generator interface 24, a DC power supply output interface 25, and a USB interface 22. The oscilloscope measurement interface 23, the signal generator interface 24, and the DC power supply output interface 25 are respectively connected to the vehicle system through an oscilloscope harness, a signal generator harness, and a DC power supply harness; the computer host is connected to the oscilloscope, the signal generator, and the programmable DC power supply through multiple USB interfaces 22, and is used for vehicle signal measurement, vehicle signal interference, vehicle signal analysis, Vehicle control logic analysis, vehicle sensor working principle analysis, vehicle computer working principle analysis; specifically: connecting the oscilloscope interface is used to measure vehicle data, and use the oscilloscope to measure the waveform of the vehicle signal; connecting the signal generator interface 24 can be used to interfere with the signals of the lines related to the whole vehicle, and inject interference signals through the signal generator to simulate the signal interference under actual working conditions; connecting the DC power supply interface can be used to interfere with the signals of the lines related to the whole vehicle, and simulate power supply failures through programmable DC power supply to study the working principle and fault response of the vehicle computer; USB interface 22 is connected to the computer host for data transmission.

[0047] Further preferably, the operation interfaces of the various instruments and equipment include an oscilloscope operation interface, a signal generator operation interface, and a programmable DC power supply operation interface, and the oscilloscope operation interface, the signal generator operation interface, and the programmable DC power supply operation interface are all displayed on the display screen 3.

[0048] Signal generator operation interface, function: the display screen 3 displays the operation interface of the signal generator, through which the user can set the parameters of the signal generator, such as waveform type (square wave, sine wave, triangle wave, etc.), frequency, amplitude, offset, etc.; function: output a specific signal through the signal generator to simulate vehicle signals or inject interference signals to test the response capability of the vehicle system;

[0049] Oscilloscope operation interface, function: the operation interface of the oscilloscope is displayed on the display screen 3, and the user can control the measurement parameters of the oscilloscope, such as time base, voltage range, trigger mode, etc. through this interface; Function: the oscilloscope is used to measure the waveform of the vehicle signal and analyze the quality and characteristics of the signal. The user can view and adjust the measured signal in real time through the operation interface;

[0050] Programmable DC power supply operation interface; Function: The operation interface of the programmable DC power supply is displayed on the display screen 3, and the user can set the output parameters of the power supply, such as voltage, current, protection settings, etc. through this interface; Function: The programmable DC power supply is used to provide a stable power supply for vehicle electronic equipment and can simulate power supply failures (such as voltage fluctuations, short circuits, etc.).

[0051] Preferably, the fault setting module includes a short-circuit module, a fault setting harness, and a plurality of resistors and an adjustable resistor module, and the plurality of fault setting harnesses are respectively connected to the short-circuit module, the plurality of resistors and the adjustable resistor module.

[0052] Further preferably, the fault setting harness is a rubber head harness.

[0053] Preferably, the surface of the cabinet 1 is also provided with a power control and management unit (PCMU), a motor generator management unit (MGM), an integrated energy management unit (IEM), a high voltage control module (HVCM), a battery energy control module (BECM), a rear brake control module (RBCM), and an adaptive cruise control module (ACC BOX); the power control and management unit is responsible for the distribution and management of power; the motor generator management unit is used to manage the operation of the motor and the generator; the integrated energy management unit is responsible for the management and optimization of the overall energy; the high voltage control module is used to manage the operation and control of the high voltage system; the battery energy control module is responsible for the management and control of the battery energy; the rear brake control module is used to manage the rear wheel braking system; the adaptive cruise control module is responsible for the operation of the vehicle adaptive cruise control system.

[0054] The system architecture of the steady-state data comprehensive test platform of this application is as follows: Figure 2 As shown:

[0055] a) Front-end (Unity): A graphical user interface (GUI) developed using the Unity engine is used to implement interactive functions for system control. The system's on / off control and parameter adjustment are implemented through buttons, sliders, and dialog boxes. The real-time data display area shows the current status of the system and the data to be viewed.

[0056] b) Backend (communication): Use communication protocols to interact with the system. Through the communication interface of the Windows 10 system, the backend can receive control instructions from the frontend and transmit the control signal to the controlled device through the communication interface. The status information of the controlled device will be fed back to the backend in real time and transmitted to the frontend for display.

[0057] c) Controlled equipment: connected to the computer through a communication interface to achieve two-way control of input and output.

[0058] The present application also provides a testing method based on a steady-state data comprehensive testing platform, such as Figure 3 As shown, including:

[0059] 1) Initialization phase: After the integrated test platform is started, the communication connection status is first detected to ensure that the host computer (computer host) and various instruments communicate normally with the vehicle system under test;

[0060] 2) Control stage: Users input control commands through the buttons, sliders and dialog boxes on the Unity interface; control commands are sent to various instruments and the vehicle system under test through the communication port, while external input signals (such as motor resolver signals, wheel speed sensor signals, coolant temperature signals, battery temperature signals, etc.) are collected in real time and fed back to the host computer;

[0061] 3) Data monitoring stage: the collected data is displayed on the display screen 3 at the front end; after each control operation is completed, the power status will be updated, and the user can observe the changes in the collected signal status through the interactive interface of the display screen 3.

[0062] In summary, this application has at least the following advantages:

[0063] The steady-state data comprehensive test platform of the present invention adopts the Unity development environment and runs on the Windows system. By interacting with the device for data, it can realize accurate control of the controlled quantity, real-time monitoring and simplified and unified operation interface. As an efficient development platform, Unity facilitates the visualization and interactive design of the system, allowing users to complete complex signal control and acquisition tasks in an intuitive interface.

[0064] The control of the equipment is achieved through communication between the host computer and the controlled system. It can conveniently output analog quantities such as voltage, current, normal distribution waveform, Poisson distribution waveform, digital quantity and switch quantity, and can also display various data and waveforms to be collected in real time.

[0065] The interactive interface of the steady-state data measurement and control software is developed using the Unity engine to create an intuitive and easy-to-use operating interface. The operating interfaces of various instruments including signal generators, oscilloscopes, and programmable DC power supplies are designed as independent functional modules and integrated into a unified interface. The operating interfaces of various instruments (signal generators, oscilloscopes, and programmable DC power supplies) are then displayed on the display screen, realizing centralized control of the equipment and real-time monitoring of data. This steady-state data measurement and control software interactive interface developed based on Unity not only improves operating efficiency, but also enhances user experience.

[0066] The setting of the USB interface enables the computer host to collect data from connected instruments and equipment such as oscilloscopes, signal generators, etc., and transmit the collected data to the interactive interface in real time, and update the display content on the display screen; the user enters control instructions through the operation interface on the display screen, and sends them to the corresponding device through the corresponding interface.

[0067] At the same time, this application has the following functions: 1) power-on process data comparison test; 2) resolver signal data comparison test; 3) motor temperature data comparison test; 4) communication bus data comparison test; 5) AC charging performance data comparison test; 6) DC charging performance data comparison test; 7) charging temperature performance data comparison test; 8) thermal management system data comparison test; 9) acceleration performance data comparison test; 10) braking performance data comparison test.

[0068] The technical features of the above embodiments may be arbitrarily combined (as long as there is no contradiction in the combination of these technical features). To make the description concise, not all possible combinations of the technical features in the above embodiments are described; these embodiments that are not explicitly written should also be considered to be within the scope of this specification.

Claims

1. A steady-state data comprehensive test platform, characterized in that: It includes a cabinet, wherein a computer host, a system test cabinet, and an instrument storage cabinet are arranged inside the cabinet, and a display screen and an operation panel are arranged on the surface of the cabinet; The computer host is internally provided with steady-state data measurement and control software, and the computer host is correspondingly connected with a variety of instruments and equipment to perform vehicle data measurement and analysis; The operation panel is connected to the computer host and is used to operate the steady-state data measurement and control software. The operation panel is provided with a system switch, a wireless mouse and keyboard, and a plurality of interfaces. The system switch is used to control the power on and off of the computer host, the wireless mouse and keyboard are used to input operation instructions, and the plurality of interfaces are used to connect the computer host and a variety of instruments and equipment accordingly. The display screen is connected to the computer host and is used to display the steady-state data measurement and control software interactive interface, and the operation interfaces of the various instruments and equipment are integrated into the interactive interface; The system test cabinet is provided with a measurement panel connected to the computer host, measurement terminals connected to the measurement panel, and a system electrical schematic diagram for controlling data measurement and analysis; The instrument storage cabinet is provided with a fault setting module, a multimeter and a plurality of connection harnesses, one end of the plurality of connection harnesses is connected to the vehicle system, and the other end is respectively connected to the measurement terminal, the fault setting module and a plurality of instruments and equipment for performing fault setting and data measurement; The steady-state data measurement and control software is used to integrate the operation interfaces of the various instruments and equipment for vehicle data measurement and testing.

2. The steady-state data comprehensive test platform according to claim 1, characterized in that: The various instruments include an oscilloscope, a signal generator, and a programmable DC power supply; The multiple interfaces include an oscilloscope measurement interface, a signal generator interface, a DC power output interface and a USB interface. The computer host is correspondingly connected to the oscilloscope, the signal generator, and the programmable DC power supply through the multiple USB interfaces. The oscilloscope measurement interface, the signal generator interface, and the DC power output interface are correspondingly connected to the vehicle system through the oscilloscope wiring harness, the signal generator wiring harness, and the DC power wiring harness, respectively.

3. The steady-state data comprehensive test platform according to claim 2, characterized in that: The operation interfaces of the various instruments and equipment include an oscilloscope operation interface, a signal generator operation interface, and a programmable DC power supply operation interface. The oscilloscope operation interface, the signal generator operation interface, and the programmable DC power supply operation interface are all displayed through the display screen. The user sets the relevant parameters of the oscilloscope, the signal generator, and the programmable DC power supply respectively through the oscilloscope operation interface, the signal generator operation interface, and the programmable DC power supply operation interface.

4. The steady-state data comprehensive test platform according to claim 1, 2 or 3, characterized in that: The fault setting module includes a short-circuit module, a fault setting harness, and a plurality of resistors and an adjustable resistor module. A plurality of the fault setting harnesses are respectively connected to the short-circuit module, the plurality of resistors and the adjustable resistor module.

5. The steady-state data comprehensive test platform according to claim 4, characterized in that: The fault setting harness is a rubber head harness.

6. A testing method based on the steady-state data comprehensive testing platform according to claim 1, comprising: 1) Initialization phase: After the integrated test platform is started, the communication connection status is first detected to ensure that the host computer and various instruments communicate normally with the vehicle system under test; 2) Control stage: Users input control commands through the buttons, sliders and dialog boxes on the Unity interface; control commands are sent to various instruments and the vehicle system under test through the communication port, while external input signals are collected in real time and fed back to the host computer; 3) Data monitoring stage: The collected data is displayed on the display screen; after each control operation is completed, the power status will be updated, and the user can observe the changes in the collected signal status through the display screen.

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