CN107562038A - A kind of Vehicle Controller Auto-Test System - Google Patents

Abstract

The invention provides a vehicle-mounted controller automatic test system, which includes a host computer, a lower computer connected to the upper computer, a simulation device and a power supply device, the upper computer controls the power supply device to supply power to the simulation device and the lower computer, and the lower computer is controlled by the simulation device. The computer sends control instructions and data to be tested. The control instructions include instructing the lower computer to test the data to be tested according to the specified requirements and to send the corresponding test data. The lower computer performs the test on the data to be tested based on the control instructions sent by the upper computer, and will get The test data is sent to the host computer through the simulation device, and the host computer receives and verifies the test data, and generates corresponding test results based on the verification. The system provided by the invention separates test data processing, test case code design, and test data transmission, and can adapt to different test requirements, so that the test case design code has good portability and reusability, and can adapt to different applications. Project requirements.

Description

A vehicle-mounted controller automatic test system

technical field

The invention belongs to the field of automatic testing, and in particular relates to an automatic testing system for a vehicle-mounted controller.

Background technique

With the increasingly complex functions of the on-board controller, the functions of the basic software of the on-board controller are also increasing, and the demand for regression testing is also very large, and the new functional requirements need to be quickly met. In this way, the basic testing work of the on-board controller The quantity increases, and the test time is required to be shortened as much as possible. Therefore, it is required that the test codes in the current vehicle controller test system must have portability, reusability and scalability. The basic software of the on-board controller is characterized by a complex structure, including a wide variety of components to be tested and tests, and the needs of the objects to be tested are constantly changing in the project. In this case, it is required that the system architecture must be able to adapt to changing testing requirements as soon as possible. The time period for the basic software testing of the on-board controller is short, and it must be able to meet the needs of a large number of regression tests. In this case, the key issues that must be solved first are the design of new test cases, the processing of a large amount of test data, and so on.

The current test methods for on-board controllers basically use the hardware-in-the-loop test (HIL: Hardware inLoop) method. This test method is characterized by mature technology, platformization, and the concept of closed-loop, which can realize automated testing. , to reduce human interference to the system, and achieved good results for the control strategy test of the vehicle controller. In addition, the current basic software architecture has developed from the previous single-point structure to the current complex layered architecture based on AUTOSAR, which is characterized by many external interfaces, and according to the needs of the project during development, constantly Expansion, hardware interface changes frequently, and new components are constantly introduced into the controller system, especially the commercial vehicle controller as the management system of the entire vehicle system, which has more external interfaces and more complex functions. In the early days, it was difficult to determine all external requirements.

Therefore, the existing on-board controller test system cannot meet the test requirements of basic software.

Contents of the invention

The technical problem to be solved by the examples of the present invention is to provide an automatic test system for a vehicle-mounted controller, which can meet the testing requirements of the basic software of the vehicle-mounted controller, has good expansion functions, and effectively realizes regression testing.

The technical scheme adopted in the present invention is:

An embodiment of the present invention provides an on-board controller automatic test system, including a host computer, a lower computer connected to the host computer, a simulation device, and a power supply device, and the host computer controls the power supply device to be the simulation device and the power supply device. The lower computer supplies power, and sends control instructions and data to be tested to the lower computer through the simulation device, and the control instructions include instructing the lower computer to test the data to be tested according to specified requirements and send corresponding Instructions for testing data, the lower computer tests the data to be tested based on the control instructions sent by the upper computer, and sends the obtained test data to the upper computer through the simulation device, and the upper computer receives And verify the test data, and generate corresponding test results based on the verification; wherein, the upper computer is provided with a test data input and output module, an upper computer test case design module, and an upper computer hardware interface extraction module connected by mutual communication , the test data input and output module is used to receive documents related to the test and analyze and process the received documents to generate data required for test execution and store the generated data in the data storage unit, and based on the Described test result generates corresponding test report; Described upper computer test case design module is used for selecting data to be tested from described test data input and output module and for the selected data to be tested design corresponding test logic and control order, to realize The input of required test data when the test case is executed; the host computer hardware interface extraction module is used to send the data to be tested by the host computer test case design module and the control instruction containing the corresponding test logic of the data to be tested Send to described simulation equipment; Described lower computer is provided with the lower computer hardware interface extraction module and the lower computer test case design module that are connected to each other in communication, and described lower computer hardware interface extraction module is used for receiving the waiting that described simulation equipment sends test data and control instructions containing the test logic corresponding to the data to be tested, and send the received test data and control instructions to the lower computer test case design module, and the lower computer test case design module is based on the control The instruction is to perform a test operation on the data to be tested, and send the corresponding response test data to the simulation device through the hardware interface extraction module of the lower computer.

Optionally, the test data input data module includes a test component selection unit, a test case selection unit, a test data processing unit, a test data storage unit and a test result output unit; the test component selection unit is used to Test requirements analysis table and test case library, extract test component data, generate data to be tested, and store the data to be tested in the test data storage unit; the test case selection unit is used for the test input into the system Requirements analysis table and test case library extract test case data, generate data to be tested, and store the data to be tested in the test data storage unit; Data, based on the technical documents related to the test, extract the data to be tested, generate a test data input table, and store the data to be tested in the test data storage unit; the test result output unit is used to complete the test execution Afterwards, based on the test result output data in the test data storage unit, a test report is generated.

Optionally, the upper computer test case design module includes an upper computer test component driver unit, an upper computer test case driver unit, an upper computer test data driver unit, and an upper computer test result output unit, and the upper computer test component driver unit uses Obtain the data in the test component selection table from the test data storage unit of the test data input and output module, generate a first-level selection drive table; The data in the test case selection table is obtained in the test data storage unit of the input and output module, and generates a secondary selection drive table; Obtain the data in the test data input table in the test data storage unit, generate three-level selection driving table; The test result output unit of the host computer is used to output the test result data generated to the test data input after the test case is executed. In the test result output table of the described test data storage unit of the output module; The process that the described primary driver table and the described secondary driver table control the test case execution of the host computer are the drive table for selecting the test case of the host computer, The three-level driver table is used to control the method, steps and process of the test execution of the lower computer, including the handle data of the embodiment, the data to be tested in the embodiment, and the module selection data of the lower computer to be tested.

Optionally, the upper computer hardware interface extraction module is used to transfer the input data of the upper computer test case design module to the lower computer, and encapsulate the differences of different test objects, while reducing the load during equipment transmission; The host computer hardware interface extraction module includes an external device extraction unit, an upper computer calibration data extraction unit and a lower computer pin extraction unit, wherein the external device extraction unit is used to receive the data of the upper computer test case design module, control External devices in the test system, so that test signals are loaded onto the lower computer, so that the details of the external devices are invisible to the test case design module of the upper computer; the lower computer pin extraction unit is used to manipulate the communication simulation node. The communication bus inputs the test signal, and extracts the test data from the communication bus, and controls the device through the IO terminal, inputs the test signal to the IO terminal and extracts the test data from the IO terminal; The test component driving unit data, test case driving unit data, and test data driving unit data of the test case design unit module are passed to the lower computer, and the response test data of the lower computer test case module is passed to the upper computer test case design module.

Optionally, the lower computer hardware interface extraction module includes a lower computer calibration data extraction unit and a lower computer pin extraction unit, and the lower computer test case design module includes a test module driver unit, a test data driver unit and a test result output unit The lower computer calibration data extraction unit is used to select the lower computer module to be tested data sent by the upper computer to the test module drive unit of the lower computer, and the embodiment handle data sent by the upper computer and Embodiment The data to be tested is sent to the test data driving unit of the lower computer, and the response test data generated by the test result output unit of the lower computer is sent to the upper computer; the lower computer pin extraction unit is used for Transfer the control data of the lower computer test case design module to the lower computer output pins to the lower computer and control the lower computer output signal data, and send the received data to the lower computer test case design module, Complete the test to the hardware IO terminal; the test module drive unit of the lower computer is used to select data based on the obtained lower computer module to be tested, and select the lower computer module to be tested; the test data driver unit is used to receive the upper computer The handle data of the embodiment and the data to be tested in the embodiment, use the handle data of the embodiment of the host computer to select the object to be tested, and then use the data to be tested in the embodiment to act on the object to be tested to implement the test.

Optionally, the emulation device includes a communication bus unit, a calibration bus unit, an IO terminal unit, and a fault injection unit, and the calibration bus unit and the communication bus unit adopt the method of node simulation on the bus to send to the lower computer The data to be tested is sent, the IO terminal unit is used to implement data transmission between the upper computer and the lower computer, and the fault injection unit is used to perform fault injection operations on the input and output pins of the lower computer.

Compared with the prior art, the vehicle-mounted controller automatic test system provided by the present invention separates the test data processing, the code design of the test case, and the sending of the test data, and can adapt to different test requirements, so that the test case design code has a good Portability and reusability, able to adapt to different project requirements.

Description of drawings

Fig. 1 is the structural block diagram of vehicle-mounted controller automatic test system of the present invention;

Fig. 2 is the software block diagram of upper computer of the present invention;

Fig. 3 is the software block diagram of lower computer of the present invention;

Fig. 4 is a detailed structural block diagram of the vehicle-mounted controller automatic testing system of the present invention.

detailed description

In order to make the technical problems, technical solutions and advantages to be solved by the present invention clearer, the following will describe in detail with reference to the drawings and specific embodiments.

Fig. 1 is the structural block diagram of vehicle-mounted controller automatic test system of the present invention; Fig. 2 is the software module diagram of upper computer of the present invention; Fig. 3 is the software module diagram of lower computer of the present invention; Fig. 4 is vehicle-mounted control of the present invention The detailed structural block diagram of the device automatic test system.

As shown in Figure 1, the on-board controller automatic test system provided by the embodiment of the present invention includes a host computer 1 and a power supply device 2 connected to the host computer, a simulation device 3 and a lower computer 4, the host computer 1 controls the The power supply device 2 supplies power for the simulation device 3 and the lower computer 4, and sends control instructions and data to be tested to the lower computer 4 through the simulation device 3, and the control instructions include instructing the lower computer to follow Designate an instruction that requires testing the data to be tested and sending corresponding test data, the lower computer 4 tests the data to be tested based on the control instruction sent by the upper computer 1, and passes the obtained test data through The simulation device 3 sends it to the host computer 1, and the host computer 1 receives and verifies the test data, and generates a corresponding test result based on the verification. In the present invention, the upper computer 1 can be a PC, the power supply device 2 can be a program-controlled power supply, the simulation equipment 3 can be made of existing simulation boards, the lower computer 4 can be a vehicle-mounted controller, and the upper computer 1 is set There is a power control module for controlling the program-controlled power supply, which is used to control the program-controlled power supply to provide power for the simulation device and the lower computer, such as 24V voltage.

Specifically, as shown in FIGS. 2 and 4 , the host computer 1 is provided with a test data input and output module 101 , a host computer test case design module 102 , and a host computer hardware interface extraction module 103 connected to each other through communication. The test data input and output module 101 is used to receive test-related documents and analyze and process the received documents to generate data required for test execution and store them in the test data storage unit, and generate corresponding test results based on the test results. test report; the host computer test case design module 102 is used to select the data to be tested from the test data storage unit of the test data input and output module, and design corresponding test logic and control commands for the selected data to be tested , to realize the input of required test data when the test case is executed; the host computer hardware interface extraction module 103 is used to send the data to be tested by the host computer test case design module and include the corresponding test logic of the data to be tested The control instruction is sent to the simulation device 3. In the present invention, the test data storage unit may be a data pool, but it is not limited thereto, as long as it is any software and hardware with a storage function.

Further, the test data input data module 101 includes a test component selection unit, a test case selection unit, a test data processing unit, a test data storage unit and a test result output unit. Wherein, the test component selection unit is used to extract test component data based on the test requirement analysis table and test case library input by the system, generate the data to be tested, that is, the component selection table, and store the data to be tested in the test In the data storage unit; the test case selection unit is used for the test requirement analysis table and the test case library input by the system, extracts the test case data, generates the data to be tested, i.e. the test case selection table, and stores the data to be tested In the test data storage unit; the test data processing unit is used to extract the data to be tested when the test case is executed, based on the technical documents related to the test data, including platform software release documents, test demand analysis tables and specifications Standards and other technical documents, extract the data to be tested, generate a test data input table, and store the data to be tested in the test data storage unit; the test result output unit is used for testing based on the test data storage unit The test result output data in , that is, the test result output table, generates a test report.

The test component selection unit, the test case selection unit, and the test data processing unit are in a loosely coupled relationship. When the test requirements are not clear, especially when the test requirement documents are incomplete, the processing of any component unit of the test data input and output module can be started according to the existing technical documents. The test component selection unit, the test case selection unit, and the test data processing unit jointly complete the work of data input to be tested, which is an indispensable relationship. Therefore, after the three units are all completed, wait for Test data preparation enters the ready state.

Further, the host computer test case design module 102 includes a host computer test component drive unit, a host computer test case drive unit, a host computer test data drive unit, and a host computer test result output unit. The test component drive unit of the host computer is used to obtain the data in the test component selection table from the test data storage unit of the test data input and output module, and generate a first-level selection drive table, that is, the test component selection drive table; Above-mentioned host computer test case drive unit is used for obtaining the data in the test case selection table from the described test data storage unit of described host computer test data input and output module, generates secondary selection drive table, i.e. test case selection drive table; The test data drive unit of the host computer is used to obtain the data in the test data input table from the test data storage unit of the test data input and output module of the host computer, and generate a three-level selection drive table, i.e. test data drive table and Test result comparison table; the host computer test result output unit is used to output the test result data generated to the test result output table of the test data storage unit of the test data input and output module after the test case is executed .

The test data driving table of described upper computer test data driving unit includes all data that test case is instantiated, i.e. embodiment handle data, embodiment data to be tested, lower computer to be tested (hereinafter also referred to as DUT) module selection data; The test result comparison table of the host computer test data drive unit is used to store the truth table of test case execution results. The effect of described upper computer test data driving unit comprises: 1) use DUT module to be tested to select data, select lower computer to be tested object for test case; 2) use embodiment handle data to instantiate test case, and determine test case The number of embodiments; 3) use the data to be tested by the test case embodiments, control the sequence and steps of the execution of the test case embodiments, and provide all the data required by the test case embodiments during execution. The handle data of the embodiment and the selected data of the DUT module to be tested are transferred to the calibration data extraction unit of the hardware interface extraction module of the lower computer by the calibration data extraction unit of the hardware interface extraction module under the action of the test example embodiment , so as to pass to the test component driver unit and the test module driver unit of the test case design module of the lower computer, and implement the locking of the object to be tested; the data to be tested in the described embodiment includes three parts, namely external device control data, DUT pin control Data, simulation device control data. Wherein, the external device control data is passed through the external device extraction unit of the host computer hardware interface extraction module to operate external devices such as power supply equipment and fault injection equipment, so as to load data information to the DUT; the simulation device control data is obtained by calling the host computer. The DUT pin extraction unit of the computer hardware interface extraction module controls the simulation device to load signal data to the IO pins of the DUT, thereby loading data information to the DUT; the DUT pin control data passes the calibration data extraction unit of the upper computer hardware interface extraction module , to pass the DUT pin control data to the DUT.

In the present invention, the first-level driver table and the second-level driver table control the process that the upper computer test case is executed, and are used to select the driver table for the upper computer test case, and the third-level driver table is used to control the method for controlling the lower computer test execution, steps and process. In the test execution process, this three-level driving method is adopted. The test component driving table is a first-level driving table, and the method of sequentially reading the data in the test component selection driving table is used to control the overall direction and rhythm of test execution. Thereby select different test components, carry out test; Described test case drive table is two-level drive table, its effect is the direction and the rhythm that the test case in the control component executes, uses the mode of first-in-first-out queue, selects the test in the component Use cases are executed in sequence; the test data-driven table is a three-level drive table, and its main function is to instantiate the test case, and to drive the implementation of the test case, and to control the test logic contained in the test case embodiment and The execution direction and rhythm of the test instruction, and the test result comparison table belong to the test data drive unit, which is a supplement to the test data drive table. After the execution of the test case embodiment is completed, the response test data is obtained, and the test case embodiment calls the test result comparison Table, and output test result data.

The test result output unit of the host computer is used to output the test result data generated after the execution of the test case to the test result output table of the test data storage unit of the test data input and output module.

The function of the host computer hardware interface extraction module 103 is to transfer the input data of the host computer test case design module to the DUT, and encapsulate the differences of different test objects, and reduce the load during device transmission. The host computer hardware interface extraction module includes an external device extraction unit, an upper computer calibration data extraction unit and a DUT pin extraction unit. The calibration data extraction unit of the upper computer is used to cooperate with the calibration data extraction unit of the hardware interface extraction module of the lower computer to transmit data through the calibration bus to complete the communication between the upper computer test case design layer and the lower computer test case layer. The transmission of control data, test data, and response test data between the computer and the lower computer is completed through the calibration data extraction unit. The upper computer calibration data extraction unit transmits the test component driving unit data, test case driving unit data, and test data driving unit data of the test case design module to the lower computer, and the response of the lower computer test case module The test data is passed to the upper computer test case design module. The calibration data extraction unit of the host computer realizes functions including but not limited to tracking calibration data changes, obtaining test parameters such as time axis and numerical values related to test data; it is characterized by high real-time requirements, large system load, and calibration variables The number is small, and the method of using calibration data in different periods, byte multiplexing, and multi-packet transmission of calibration data is used to reduce the number of calibration variables and reduce the network load of calibration communication. The DUT pin extraction unit inputs test signals to the communication bus and extracts test data from the communication bus by manipulating the communication simulation node; controls the device through the IO terminal, inputs the test signal to the IO terminal and extracts test data from the IO terminal. The external equipment extraction unit receives the data of the upper computer test case design layer, controls the external equipment in the test system, such as power supply, fault injection equipment, etc., thereby loads the test signal on the DUT, and realizes the details of the external equipment for the upper computer test. The Use Case Design layer is not visible.

As shown in FIG. 3 and FIG. 4 , the lower computer 4 includes a lower test case design module 401 and a lower computer hardware interface extraction module 402 . The lower computer hardware interface extraction module 402 is used to receive the data to be tested and the control instructions containing the test logic corresponding to the data to be tested sent by the simulation device, and send the received test data and control instructions to the The lower computer test case design module, the lower computer test case design module 401 performs a test operation on the data to be tested based on the control instruction, and sends the corresponding response test data to the lower computer hardware interface extraction module through the lower computer. The simulation device described above.

Wherein, the hardware interface extraction module 402 of the lower computer passes data through the hardware module and the hardware interface extraction module of the upper computer, and is realized by data transmission between calibration data extraction units; the hardware interface extraction module of the lower computer passes through DUT The pin extraction unit completes the IO data injection to the DUT. Described lower computer calibration data extracting unit, the DUT module to be tested that upper computer is delivered to lower computer selects data, is passed up to the test module driving unit of lower computer test case design module; The embodiment handle that upper computer is delivered to lower computer The relevant data of the data and the embodiment data to be tested are uploaded to the test data drive unit of the test case design module of the lower computer; the response test data generated by the test result output unit of the test case design module of the lower computer is passed to the upper computer. The lower computer DUT pin extraction unit transmits the control data of the lower computer test case design layer to the DUT output pin to the DUT to control its output signal data; the data received on the DUT input pin is passed to the lower computer for testing Use case design module to complete the hardware IO terminal test.

The test case design module 401 of the lower computer is controlled by the test data driving unit of the test case design layer of the upper computer to complete the execution of the test embodiment. The test case design module of the lower computer is composed of a test module drive unit, a test data drive unit and a test result output unit. The test module driver unit obtains the DUT module to be tested data of the upper computer, selects the DUT module to be tested; the test data driver unit receives the embodiment handle data of the upper computer and the data to be tested in the embodiment, and uses the upper computer’s The handle data in the embodiment selects the object to be tested, and then the data to be tested in the embodiment acts on the object to be tested to implement the test. The object to be tested loads the data to be tested in the embodiment of the host computer, and executes the test. If the object to be tested is an output terminal, load the data to be tested to the output data interface, and control the DUT to output the predetermined data through the hardware interface extraction module; Input data; if the object to be tested is a DUT variable, the data to be tested is directly loaded onto the corresponding DUT variable, and the implementation of the variable is loaded on the calibration amount; the test result output unit is to load the data to be tested The results obtained after arriving at the measured object are directly loaded on the calibration variable, and passed to the test case design module of the upper computer through the calibration data extraction unit to complete the return of the test response data.

In the present invention, the emulation device 3, that is, the hardware and the hardware driver module is the hardware bearing part of the test system, as shown in Figure 4, the emulation device of the present invention can include a communication bus unit, a calibration bus unit, an IO terminal unit, Fault injection unit. The calibration bus unit and the communication bus unit adopt the method of node simulation on the bus to send the data to be tested to the vehicle controller. The bus to be tested of the DUT can be composed of one or more vehicle communication buses. When it is required to realize the non-differential test between different buses to be tested, this requires the selection of boards to meet the requirements of having multiple communication lines. The present invention uses Vector's VT6204, which can meet the requirements of four communication buses and realize data in The transmission on the bus is to send data from the on-board controller to the communication bus and the on-board controller to receive the data on the bus; the IO terminal unit, because the on-board controller has many types of IO terminals, includes analog terminals and digital terminals And frequency measurement terminals, the number is huge, up to nearly 300, so the present invention uses VT boards to realize the control of terminal input data and the collection of output data, including modules such as VT2004, VT2516, and VT2820. Described fault injection unit, carries out fault injection operation to the input and output pin of vehicle-mounted controller, adopts relay as fault injection simulation equipment when realizing the fault input of DUT, adopts VT2820 universal relay board to realize the fault injection of IO pin in the present invention operate.

The above description is a preferred embodiment of the present invention, it should be pointed out that for those of ordinary skill in the art, without departing from the principle of the present invention, some improvements and modifications can also be made, these improvements and modifications It should also be regarded as the protection scope of the present invention.

Claims (6)

1. a vehicle-mounted controller automatic test system, is characterized in that, comprises upper computer and the lower computer that is connected with described upper computer, simulation equipment and power supply equipment, and described upper computer controls described power supply equipment to be described simulation equipment and The lower computer supplies power, and sends control instructions and data to be tested to the lower computer through the simulation device, and the control instructions include instructing the lower computer to test the data to be tested according to specified requirements and send corresponding Instructions for testing data, the lower computer tests the data to be tested based on the control instructions sent by the upper computer, and sends the obtained test data to the upper computer through the simulation device, and the upper computer receives and verifying the test data, and generating corresponding test results based on the verification; Wherein, the upper computer is provided with a test data input and output module, an upper computer test case design module, and an upper computer hardware interface extraction module that are connected to each other through communication, and the test data input and output module is used to receive and test related documents and The received document is analyzed and processed to generate the data required for test execution and the generated data is stored in the data storage unit, and a corresponding test report is generated based on the test result; the test case design module of the host computer uses Select the data to be tested from the test data input and output module and design corresponding test logic and control instructions for the selected data to be tested, so as to realize the input of the required test data when the test case is executed; the host computer hardware interface extracts The module is used to send the data to be tested sent by the host computer test case design module and the control instruction containing the test logic corresponding to the data to be tested to the simulation device; The lower computer is provided with a lower computer hardware interface extraction module and a lower computer test case design module that are connected to each other through communication, and the lower computer hardware interface extraction module is used to receive the data to be tested sent by the simulation device and include the data to be tested The control instruction of the test logic corresponding to the test data, and the test data and control instructions received are sent to the test case design module of the lower computer, and the test case design module of the lower computer is based on the control instruction to the data to be tested Perform a test operation, and send corresponding response test data to the simulation device through the lower computer hardware interface extraction module. 2. The system according to claim 1, wherein the test data input data module comprises a test component selection unit, a test case selection unit, a test data processing unit, a test data storage unit and a test result output unit; The test component selection unit is used to extract test component data based on the test requirement analysis table and test case library input by the system, generate data to be tested, and store the data to be tested in the test data storage unit; The test case selection unit is used to extract the test case data, generate the data to be tested, and store the data to be tested in the test data storage unit for the test requirement analysis table and the test case library input by the system; The test data unit is used to extract the data to be tested when the test case is executed, extract the data to be tested based on the technical documents related to the test, generate a test data input table, and store the data to be tested in the test in the data storage unit; The test result output unit is used to generate a test report based on the test result output data in the test data storage unit after the test execution is completed. 3. system according to claim 2, it is characterized in that, described upper computer test case design module comprises upper computer test assembly driver unit, upper computer test case driver unit, upper computer test data driver unit, upper computer test result output unit, The test component drive unit of the host computer is used to obtain the data in the test component selection table from the test data storage unit of the test data input and output module, and generates a first-level selection drive table; the test case drive unit of the host computer Used to obtain the data in the test case selection table from the test data storage unit of the test data input and output module of the upper computer, and generate a secondary selection drive table; Obtain the data in the test data input table in the described test data storage unit of computer test data input and output module, generate three-level selection driving table; Described upper computer test result output unit is used for after the test case is carried out, the test that produces The result data is output to the test result output table of the test data storage unit of the test data input and output module; The process of the first-level driver table and the second-level driver table controlling the execution of the upper computer test case is a driver table for selecting the upper computer test case, and the third-level driver table is used to control the method of the lower computer test execution, The steps and process include the handle data of the embodiment, the data to be tested in the embodiment, and the selected data of the lower computer module to be tested. 4. system according to claim 3, is characterized in that, described upper computer hardware interface extraction module is used for the input data of upper computer test case design module, is passed to described lower computer, and the difference of encapsulating different test objects Sexuality, while reducing the load during equipment transmission; The host computer hardware interface extraction module includes an external device extraction unit, an upper computer calibration data extraction unit and a lower computer pin extraction unit, wherein the external device extraction unit is used to receive the data of the upper computer test case design module, control External devices in the test system, so that test signals are loaded onto the lower computer, so that the details of the external devices are invisible to the test case design module of the upper computer; the lower computer pin extraction unit is used to manipulate the communication simulation node. The communication bus inputs the test signal, and extracts the test data from the communication bus, and controls the device through the IO terminal, inputs the test signal to the IO terminal and extracts the test data from the IO terminal; The test component driving unit data, test case driving unit data, and test data driving unit data of the test case design unit module are passed to the lower computer, and the response test data of the lower computer test case module is passed to the upper computer test case design module. 5. The system according to claim 3, wherein the lower computer hardware interface extraction module includes a lower computer calibration data extraction unit and a lower computer pin extraction unit, and the lower computer test case design module includes a test module driver unit, test data drive unit and test result output unit; The lower computer calibration data extraction unit is used to send the selected data of the lower computer module to be tested sent by the upper computer to the test module drive unit of the lower computer, and the embodiment handle data and implementation data sent by the upper computer. For example, the test data to be tested is sent to the test data drive unit of the lower computer, and the response test data generated by the test result output unit of the lower computer is sent to the upper computer; The lower computer pin extraction unit is used to transfer the control data of the lower computer test case design module to the lower computer output pins to the lower computer and control the lower computer output signal data, and send the received data Design a module for the test case of the lower computer, and complete the test of the hardware IO terminal; The test module drive unit of the lower computer is used to select data based on the acquired lower computer module to be tested, and select the lower computer module to be tested; the test data driver unit is used to receive the embodiment handle data and the embodiment of the upper computer For the data to be tested, use the handle data of the embodiment of the host computer to select the object to be tested, and then use the data to be tested in the embodiment to act on the object to be tested to implement the test. 6. The system according to claim 1, wherein the simulation device comprises a communication bus unit, a calibration bus unit, an IO terminal unit, and a fault injection unit, and the calibration bus unit and the communication bus unit adopt a bus The method of upper node emulation, sends the data to be tested to the lower computer, the IO terminal unit is used to realize the data transmission between the upper computer and the lower computer, and the fault injection unit is used for the lower computer Input and output pins for fault injection operations.