CN111983990A - Basic software automated test platform - Google Patents

Abstract

The patent of the present invention provides a basic software automatic test platform, including the automatic test of the CAN bus bottom layer protocol and the diagnosis protocol. The platform includes industrial computer, relay board, voltage conditioning board, fault injection board, programmable power supply, VN1640, CANspider, and oscilloscope. The above modules are installed in the cabinet, and the wiring harness is connected by BOB interface, which is convenient for expanding the interface. The PC and the system are connected by a USB cable. This test platform can realize CAN bus bottom protocol test, including physical layer, data link layer, interaction layer, network management, fault management; diagnostic protocol test, including service test and data test. It can conduct detailed tests according to the test cases written in the test specification, and automatically generate test reports, including the output of test data.

Description

Basic software automated test platform

technical field

The patent of the present invention is a basic software automatic testing platform, which belongs to the field of automatic testing in the automobile industry.

Background technique

The existing testing methods have a long cycle and a huge workload. And more and more complex test content, testing with a single manual method is obviously unable to meet customer requirements. The basic software automated test platform can simplify the heavy test work, improve work efficiency and reduce test difficulty.

Invention patent content

Aiming at the deficiencies in the prior art, the purpose of the patent of the present invention is to provide an automated testing platform to solve the problems raised in the above background art.

In order to achieve the above object, the present invention is achieved through the following technical solutions: a basic software automatic test platform, including: a test cabinet, a virtual software part, and a diagnostic test software part; the virtual software part and the diagnostic test software part are installed in the test cabinet. inside;

A PDU power supply, an industrial computer, a display, a program power supply, an ATS chassis, an oscilloscope, a signal generator, and a digital multimeter are installed inside the test cabinet;

The test cabinet includes a board, a power supply module, and a CAN module; the industrial computer is used to install the control board and the CAN module, and the virtual software part and the diagnostic test software part are installed on the industrial computer,

The board includes a relay board, a relay board, a voltage conditioning board, and a fault injection board. The relay board is used to control the on-off of CAN, KL.30, KL.15 and other signals; the signal conditioning board is used for Convert the digital signal to DC level to control the relay; the fault injection board is used to realize the short circuit to the ground or the power supply, and it can also realize the simulation of open circuit fault; the IO board is used to control the relay board;

The CAN module includes VN1640 and CANspider, VN1640 is connected between the industrial computer and the ECU under test, and the CANoe software host computer monitors network data and executes test cases; CANspider is used for bus fault simulation;

The oscilloscope is used for the acquisition of the CAN bus data waveform, and the function is called by Labview for acquisition;

The virtual software part is a user platform developed by Labview, which has functional modules such as data acquisition and signal analysis, and completes the functions of driving hardware, measuring parameters, and data acquisition and storage;

The diagnostic test software part includes three parts: CANoe, CANdela and CANdiva. CANdela is used to make .CDD diagnostic database files; CANdiva is to generate automated test cases and output detailed test reports based on the diagnostic database files; CANoe is an environment carrier for executing test cases and data monitoring of .diva projects.

The virtual software part can realize an integrated automatic test platform of CAN bus and diagnostic protocol.

The diagnostic test software part can automatically save test data and output test reports automatically.

The power module includes two programmable power supplies and a switching power supply. The programmable power supply 1 is used to supply power to the vehicle test system and is the main power supply of the test system; the programmable power supply 2 is used to adjust the voltage of the ground offset board; Power supplies are used to power relays and other active devices.

The industrial computer is connected with the board, the power supply module and the CAN module through the interface.

The interface is a BOB interface.

The industrial computer performs human-computer interaction and hardware driving by running the host computer program. CAN modules include VN1640 for bus monitoring and CANspider for measuring sampling points and BUSoff recovery testing. VN1640 combined with the host computer test software CANoe, supports CAN/LIN bus monitoring, load statistics, error frame identification and data recording, can perform multi-node simulation, and can use CAPL language to write test frameworks. Combined with LABview software control, it can realize the automatic test one by one between the test cases, thereby improving the configurability of the test and the degree of automatic testing. The diagnostic automated test system consists of three parts: CANoe, CANdela and CANdiva. CANdela is used to make .CDD diagnostic database files; CANdiva is to generate automated test cases and output detailed test reports based on the diagnostic database files; CANoe is an environment carrier for executing test cases and data monitoring of .diva projects. It can perform diagnostic services, ECU logistics data reading, fault code reading and bus monitoring, support vehicle configuration, data refresh, and provide automatic diagnostic testing for importing into the diagnostic database.

The virtual software part and the diagnostic test software part are built with LABview. The parameters of the use case are configured and executed in one page, and the user can select the network to be tested according to the previously configured protocol type to be tested, such as: physical layer, OSEKNm, AutoSARNm , the node to be tested, you can configure the parameter constraints related to each use case under the node, which is simple and clear; after the use case constraint parameters are successfully configured, you can choose one or more test cases, set the execution times of the use case, execute the use case, system Automatically verify the integrity of the configured parameters. There are prompts during and after the execution of each use case. After the selected use case is executed, the program automatically enters the test report generation page. Check the report of the node to be generated, and the program automatically grabs the relevant data and generates a test report in Excel format after confirmation.

The beneficial effects of the present invention are as follows: in the present invention, it is pointed out that the interface is a BOB interface, thus it can be known that the wire harness in the present invention is connected uniformly by the BOB interface, which is convenient for expanding the interface. The PC and the system are connected by a USB cable. This test platform can realize CAN bus bottom protocol test, including physical layer, data link layer, interaction layer, network management, fault management; diagnostic protocol test, including service test and data test. It can conduct detailed tests according to the test cases written in the test specification, and automatically generate test reports, including the output of test data. Combined with the control of LABview software, the invention can realize the automatic test one by one between the test cases, thereby improving the configurability of the test and the degree of the automatic test. The diagnostic automated test system can perform diagnostic services, ECU logistics data reading, fault code reading and bus monitoring, support vehicle configuration, data refresh, and provide automated diagnostic testing for importing into the diagnostic database.

Description of drawings

Figure 1 is a schematic structural diagram of the present invention.

Figure 2 is a schematic diagram of the internal structure of the present invention.

For example, PDU power supply 1, display 2, industrial computer 3, program power supply 4, ATS chassis 5, oscilloscope 6, signal generator 7, digital multimeter 8.

Detailed ways

Example 1

The invention is a basic software automatic test platform, including: a test cabinet, a virtual software part, and a diagnostic test software part; the virtual software part and the diagnostic test software part are installed inside the test cabinet; the inside of the test cabinet is installed with a PDU power supply 1, an industrial computer 3, Display 2, program power supply 4, ATS chassis 5, oscilloscope 6, signal generator 7, digital multimeter 8; the test cabinet includes the board, power module, CAN module, and oscilloscope 6. What is the function of; the industrial computer 3 is used to install the control board and CAN module, and the virtual software part and the diagnostic test software part are installed on the industrial computer 3, the board includes a relay board, a relay board, a voltage conditioning board, a fault injection board, and the relay board is used to control CAN, KL .30, KL.15 and other signals on and off; the signal conditioning board is used to convert digital signals into DC level control relays; the fault injection board is used to realize short-circuit to ground or power supply, and can also realize open-circuit fault simulation ;IO board is used to control the relay board; CAN module includes VN1640 and CANspider, VN1640 is connected between IPC 3 and the ECU under test, and the CANoe software upper computer is used to monitor network data and execute test cases; CANspider is used for bus faults The oscilloscope is used for the acquisition of CAN bus data waveform, and the function is called by Labview for acquisition; the virtual software part is a user platform developed by Labview, with functional modules such as data acquisition and signal analysis, and completes the driving of hardware, Measurement parameters and functions of data acquisition and storage; diagnostic testing software, including CANoe, CANdela, CANdiva. CANdela is used to make .CDD diagnostic database files; CANdiva is to generate automated test cases and output detailed test reports based on the diagnostic database files; CANoe is an environment carrier for executing test cases and data monitoring of .diva projects.

Example 2

The industrial computer 3 of the present invention performs human-computer interaction and hardware driving by running the host computer program. CAN modules include VN1640 for bus monitoring and CANspider for measuring sampling points and BUSoff recovery testing. VN1640 combined with the host computer test software CANoe, supports CAN/LIN bus monitoring, load statistics, error frame identification and data recording, can perform multi-node simulation, and can use CAPL language to write test frameworks. Combined with LABview software control, it can realize the automatic test one by one between the test cases, thereby improving the configurability of the test and the degree of automatic testing. The diagnostic automated test system consists of three parts: CANoe, CANdela and CANdiva. CANdela is used to make .CDD diagnostic database files; CANdiva is to generate automated test cases and output detailed test reports based on the diagnostic database files; CANoe is an environment carrier for executing test cases and data monitoring of .diva projects. It can perform diagnostic services, ECU logistics data reading, fault code reading and bus monitoring, support vehicle configuration, data refresh, and provide automatic diagnostic testing for importing into the diagnostic database. The virtual software part and the diagnostic test software part are built with LABview. The parameters of the use case are configured and executed in one page, and the user can select the network to be tested according to the previously configured protocol type to be tested, such as: physical layer, OSEKNm, AutoSARNm , the node to be tested, you can configure the parameter constraints related to each use case under the node, which is simple and clear; after the use case constraint parameters are successfully configured, you can choose one or more test cases, set the execution times of the use case, execute the use case, system Automatically verify the integrity of the configured parameters. There are prompts during and after the execution of each use case. After the selected use case is executed, the program automatically enters the test report generation page. Check the report of the node to be generated, and the program automatically grabs the relevant data and generates a test report in Excel format after confirmation.

The basic principles and main features of the present invention and the advantages of the present invention have been shown and described above, and it will be apparent to those skilled in the art that the present invention is not limited to the details of the above-described exemplary embodiments, but without departing from the spirit or essential aspects of the present invention. In the case of the characteristic features, the present invention can be implemented in other specific forms. Therefore, the embodiments are to be regarded in all respects as illustrative and not restrictive, and the scope of the invention is to be defined by the appended claims rather than the foregoing description, which are therefore intended to fall within the scope of the claims. All changes within the meaning and scope of the equivalents of , are included in the present invention. Any reference signs in the claims shall not be construed as limiting the involved claim.

In addition, it should be understood that although this specification is described in terms of embodiments, not each embodiment only includes an independent technical solution, and this description in the specification is only for the sake of clarity, and those skilled in the art should take the specification as a whole , the technical solutions in each embodiment can also be appropriately combined to form other implementations that can be understood by those skilled in the art.

Claims (8)

1. The basic software automated test platform, including a test cabinet, a virtual software part, and a diagnostic test software part; the virtual software part and the diagnostic test software part are installed inside the test cabinet; The test cabinet is equipped with PDU power supply, industrial computer, display, program power supply, ATS chassis, oscilloscope, signal generator, digital multimeter; the customer needs to explain the relationship between these components and the virtual software part and the diagnostic test software part The internal modules of the test cabinet include a board card, a power supply module, and a CAN module; the industrial computer is used for installing the control board card and the CAN module, and the virtual software part and the diagnostic test software part are installed on the industrial computer; The board includes a relay board, a relay board, a voltage conditioning board, and a fault injection board. The relay board is used to control the on-off of CAN, KL.30, KL.15 and other signals; the signal conditioning board is used for Convert the digital signal to DC level to control the relay; the fault injection board is used to realize the short circuit to the ground or the power supply, and it can also realize the simulation of open circuit fault; the IO board is used to control the relay board; The CAN module includes VN1640 and CANspider, VN1640 is connected between the industrial computer and the ECU under test, and the CANoe software host computer monitors network data and executes test cases; CANspider is used for bus fault simulation; The oscilloscope is used for the acquisition of the CAN bus data waveform, and the function is called by Labview for acquisition; The virtual software part is a user platform developed by Labview, which has functional modules such as data acquisition and signal analysis, and completes the functions of driving hardware, measuring parameters, and data acquisition and storage; The diagnostic test software part includes three parts: CANoe, CANdela and CANdiva. CANdela is used to make the .CDD diagnostic database file; CANdiva is to generate automatic test cases and output detailed test reports based on the diagnostic database file; CANoe is an environmental carrier that uses Test cases and data monitoring for executing .diva projects. 2. The basic software automatic test platform according to claim 1, wherein the virtual software part can realize the integrated automatic test platform of CAN bus and diagnostic protocol. 3. The basic software automatic testing platform according to claim 1, wherein the diagnostic testing software part can automatically save the test data and automatically output the test report. 4. The basic software automated testing platform according to claim 1, wherein the power supply module comprises 2 programmable power supplies and switching power supplies, and the programmable power supply 1 is used to supply power for the vehicle testing system, and is the main component of the testing system. Power supply; programmable power supply 2 is used to adjust the voltage of the ground offset board; switching power supply is used to supply power to relays and other active devices. 5. The basic software automated testing platform according to claim 1, wherein the industrial computer is connected to a board, a power supply module and a CAN module through an interface. 6. The basic software automated testing platform according to claim 5, wherein the interface is a BOB interface. 7. basic software automatic test platform according to claim 1 is characterized in that CAN module comprises VN1640 for bus monitoring and CANspider, VN1640 for measuring sampling point and BUSoff recovery test in conjunction with host computer test software CANoe, supports CAN /LIN bus monitoring, load statistics, error frame identification and data recording, can perform multi-node simulation, use CAPL language to write test framework, combined with LABview software control, can realize one-by-one automatic testing between test cases, thereby improving the configurability of the test degree of performance and automated testing. 8. The basic software automated testing platform according to claim 1, wherein the virtual software part and the diagnostic testing software part are built by using LABview.

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