CN114063604B - A software and hardware fault simulation system, method and device - Google Patents

Abstract

The invention provides a software and hardware fault simulation system, a method and a device, wherein the system comprises the following components: the system comprises an upper computer, a fault injection controller and a training platform, wherein the fault injection controller is respectively connected with the upper computer and the training platform; the upper computer is used for sending a fault instruction to the fault injection controller, wherein the fault instruction comprises: software fault instructions and hardware fault instructions; the fault injection controller is used for sending the acquired software fault instruction or hardware fault instruction to the practical training platform; and the training platform is used for receiving and executing the software fault instruction or the hardware fault instruction sent by the fault injection controller. By the software and hardware fault simulation system, the method and the device provided by the embodiment of the invention, students can repeatedly practice the fault diagnosis mode and the judging method, and the needs of universities and colleges in actual teaching are met.

Description

A software and hardware fault simulation system, method and device

Technical Field

The present invention relates to the field of computer technology, and in particular to a software and hardware fault simulation system, method and device.

Background technique

At present, more and more colleges and universities have opened courses on driverless cars, ranging from the top-level autonomous driving algorithm design and sensor fusion technology to the bottom-level steer-by-wire and brake-by-wire technologies. In order to meet the needs of colleges and universities in actual teaching, it is necessary to design a training platform with fault injection function for students to practice fault diagnosis.

Summary of the invention

To solve the above problems, an object of the embodiments of the present invention is to provide a software and hardware fault simulation system, method and device.

In a first aspect, an embodiment of the present invention provides a software and hardware fault simulation system, comprising:

A host computer, a fault injection controller and a training platform, wherein the fault injection controller is connected to the host computer and the training platform respectively;

The host computer is used to send a fault instruction to the fault injection controller, wherein the fault instruction includes: a software fault instruction and a hardware fault instruction;

The fault injection controller is used to send the acquired software fault instruction or hardware fault instruction to the training platform;

The training platform is used to receive and execute the software fault instruction or the hardware fault instruction sent by the fault injection controller.

In a second aspect, an embodiment of the present invention further provides a software and hardware fault simulation method, which is used in the software and hardware fault simulation system described in the first aspect, and the method includes:

When a software fault instruction sent by the host computer is obtained, the microprocessor of the fault injection controller sends the software fault instruction to the training platform, and the training platform executes the software fault instruction; when it is determined that the platform has completed the execution of the software fault instruction, the software fault instruction completion information is sent to the host computer;

When a hardware fault instruction sent by a host computer is obtained, the relay corresponding to the hardware fault indicated by the hardware fault instruction is determined; the relay corresponding to the hardware fault indicated by the hardware fault instruction is controlled to be disconnected; the hardware fault instruction is sent to the training platform, and the training platform executes the hardware fault instruction; when it is determined that the training platform has completed executing the hardware fault instruction, the hardware fault instruction completion information is sent to the host computer.

In a third aspect, an embodiment of the present invention further provides a software and hardware fault simulation device, which is used to execute the software and hardware fault simulation method described in the second aspect, and the device includes:

The software fault control module is used to, when obtaining the software fault instruction sent by the host computer, send the software fault instruction to the training platform, and the training platform executes the software fault instruction; when it is determined that the training platform has completed the execution of the software fault instruction, send the software fault instruction completion information to the host computer;

The hardware fault control module is used to, when obtaining a hardware fault instruction sent by a host computer, determine the relay corresponding to the hardware fault indicated by the hardware fault instruction; control the relay corresponding to the hardware fault indicated by the hardware fault instruction to be disconnected; send the hardware fault instruction to the training platform, and the training platform executes the hardware fault instruction; when it is determined that the training platform has completed the execution of the hardware fault instruction, send the hardware fault instruction completion information to the host computer.

In a fourth aspect, an embodiment of the present invention further provides a software and hardware fault simulation method, which is used in the software and hardware fault simulation system described in the first aspect, and the method includes:

When receiving the software fault instruction or the hardware fault instruction sent by the fault injection controller, the rapid prototype controller of the training platform performs fault classification on the software fault instruction or the hardware fault instruction; when it is determined that the software fault indicated by the software fault instruction or the hardware fault indicated by the hardware fault instruction is a high-level fault, the training platform is controlled to execute the software fault instruction or the hardware fault instruction, and when the training platform completes the action corresponding to the software fault instruction or the hardware fault instruction, the microprocessor is notified that the training platform has completed the action corresponding to the software fault instruction or the hardware fault instruction.

In a fifth aspect, an embodiment of the present invention further provides a software and hardware fault simulation device, which is used to execute the software and hardware fault simulation method described in the fourth aspect, and the device includes:

When receiving a software fault instruction or a hardware fault instruction sent by a fault injection controller, the control unit is used to perform fault classification on the software fault instruction or the hardware fault instruction; when it is determined that the software fault indicated by the software fault instruction or the hardware fault instruction is a high-level fault, the training platform is controlled to execute the software fault instruction or the hardware fault instruction, and when the training platform completes the action corresponding to the software fault instruction or the hardware fault instruction, the microprocessor is notified that the training platform has completed the action corresponding to the software fault instruction or the hardware fault instruction.

In a sixth aspect, an embodiment of the present invention further provides a computer-readable storage medium, on which a computer program is stored, and the computer program is executed by a processor to perform the steps of the method described in the second aspect or the fourth aspect.

In the seventh aspect, an embodiment of the present invention further provides an electronic device, comprising a memory, a processor and one or more programs, wherein the one or more programs are stored in the memory and are configured so that the processor executes the steps of the method described in the second aspect or the fourth aspect above.

In the solutions provided in the first to seventh aspects of the embodiments of the present invention, a software fault instruction or a hardware fault instruction is sent to a fault injection controller through a set host computer, and the fault injection controller can send the software fault instruction or the hardware fault instruction to the training platform for execution; compared with the related technology in which the training platform does not have a fault injection function, the host computer and the fault injection controller set in the system can be used to inject the software fault instructions or the hardware fault instructions that need to be executed into the training platform, so that students can repeatedly practice fault diagnosis methods and judgment methods, meeting the needs of colleges and universities in actual teaching.

In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, preferred embodiments are given below and described in detail with reference to the accompanying drawings.

BRIEF DESCRIPTION OF THE DRAWINGS

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

FIG1 shows a schematic diagram of the structure of a software and hardware fault simulation system provided by Embodiment 1 of the present invention;

FIG2 shows a flow chart of a method for simulating software and hardware faults provided by Embodiment 2 of the present invention;

FIG3 shows a schematic diagram of the structure of a software and hardware fault simulation device provided by Embodiment 3 of the present invention;

FIG. 4 shows a schematic structural diagram of an electronic device provided by Embodiment 6 of the present invention.

Detailed ways

In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

At present, more and more colleges and universities have opened courses on driverless cars, ranging from the top-level autonomous driving algorithm design and sensor fusion technology to the bottom-level steer-by-wire and brake-by-wire technologies. In order to meet the needs of colleges and universities in actual teaching, it is necessary to design a training platform with fault injection function for students to practice fault diagnosis.

Based on this, this embodiment proposes a software and hardware fault simulation system, method and device, which sends software fault instructions or hardware fault instructions to a fault injection controller through a set host computer, and the fault injection controller can send the software fault instructions or hardware fault instructions to a training platform for execution; compared with the related technology in which the training platform does not have a fault injection function, the host computer and fault injection controller set in the system can inject software fault instructions or hardware fault instructions that need to be executed into the training platform, so that students can repeatedly practice fault diagnosis methods and judgment methods, meeting the needs of colleges and universities in actual teaching.

In order to make the above-mentioned objects, features and advantages of the present application more obvious and easy to understand, the present application is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

Example 1

Referring to the structural diagram of a software and hardware fault simulation system shown in FIG1 , this embodiment provides a software and hardware fault simulation system, including:

A host computer 100 , a fault injection controller 102 and a training platform 104 , wherein the fault injection controller 102 is connected to the host computer 100 and the training platform 104 respectively.

The host computer 100 can be a touch-screen all-in-one computer. The software system platform running on the host computer 100 is developed based on the LabVIEW software environment and communicates with the training platform 104 and the fault injection controller 102 through the CAN bus. The fault injection controller 102 is a CAN-controlled 16-way relay integrated board that can directly trigger the on and off of the relay in the circuit, thereby achieving the function of fault injection.

The host computer 100 is used to send a fault instruction to the fault injection controller 102, wherein the fault instruction includes: a software fault instruction and a hardware fault instruction.

The software fault instruction is used to indicate the fault instructions generated when an operation fault, upgrade fault, communication fault, etc. occur during the operation of the software in the vehicle's on-board computer or ECU.

The hardware fault instruction is used to indicate a fault instruction generated when a fault occurs in a component such as the engine, brake system, airbag, or vehicle signal light of the vehicle.

The fault instruction carries a fault identifier, and the fault identifier is used to uniquely identify a specific software fault or hardware fault carried by the fault instruction.

The fault identifier carried in the software fault instruction must be the fault identifier of the software fault.

The fault identifier carried in the hardware fault instruction must be the fault identifier of the hardware fault.

The fault injection controller 102 is used to send the acquired software fault instruction or hardware fault instruction to the training platform.

The fault injection controller 102 includes a microprocessor and peripheral circuits.

The microprocessor, the host computer 100, and the training platform 104 are respectively connected to the peripheral circuit.

In one embodiment, the microprocessor, the host computer 100, and the training platform 104 are respectively connected to the peripheral circuit via a CAN bus.

The peripheral circuits include, but are not limited to, communication circuits, signal processing circuits, and power supply circuits, so that the microcontroller in the fault injection controller 102 can interact with the host computer 100 and the training platform 104 through the peripheral circuits.

The circuits included in the peripheral circuit and the connection relationships between the circuits are any communication circuits, signal processing circuits and power supply circuits that can be set on the circuit board in the prior art and the connection relationships between these circuits, which will not be repeated here.

When the software fault instruction sent by the host computer 100 is obtained, the microprocessor sends the software fault instruction to the training platform 104, and the training platform 104 executes the software fault instruction; when it is determined that the training platform 104 has completed executing the software fault instruction, the software fault instruction completion information is sent to the host computer 100.

In order to send the software fault instruction completion information to the host computer 100, the microprocessor can generate software fault instruction completion information using the fault identifier in the received software fault instruction, and feed back the generated software fault instruction completion information to the host computer 100 in the form of an original CAN message.

The microprocessor pre-stores the corresponding relationship between the fault identifier and the relay.

In order to better execute the hardware control instructions sent by the host computer 100, the fault injection controller further includes: a relay module; the relay module includes a plurality of relays corresponding to different hardware faults.

Each of the plurality of relays is connected to the peripheral circuit, respectively.

When the hardware fault instruction sent by the host computer 100 is obtained, the microprocessor determines the relay corresponding to the hardware fault indicated by the hardware fault instruction, and controls the relay corresponding to the hardware fault indicated by the hardware fault instruction to disconnect; sends the hardware fault instruction to the training platform 104, and the training platform 104 executes the hardware fault instruction; when it is determined that the training platform 104 has completed executing the hardware fault instruction, the hardware fault instruction completion information is sent to the host computer 100.

The specific process of the microprocessor determining the relay corresponding to the hardware fault indicated by the hardware fault instruction and controlling the relay corresponding to the hardware fault indicated by the hardware fault instruction to disconnect is as follows: after the microprocessor receives the hardware fault instruction sent by the host computer 100, the microprocessor determines the relay corresponding to the fault identifier carried by the hardware fault instruction based on the pre-stored correspondence between the fault identifier and the relay, and then sends a disconnection instruction to the relay corresponding to the fault identifier carried by the hardware fault instruction, thereby controlling the relay corresponding to the hardware fault indicated by the hardware fault instruction to disconnect.

Through the above description, it can be determined that during the execution of the fault injection controller 104, the hardware fault instruction issued by the host computer 100 is sent to the microcontroller through the peripheral circuit. After calculation, the microcontroller processes the hardware fault instruction through the peripheral circuit and then sends it to the relay module and training platform 104 for execution.

In order to provide a sound prompt when the fault injection controller 102 executes a fault instruction, indicating that the fault injection controller 102 is executing the fault injection function, the fault injection controller 102 further includes a buzzer.

The buzzer is connected to the microprocessor.

When a software fault instruction or a hardware fault instruction sent by the host computer is obtained, the microprocessor controls the buzzer to emit a buzzing sound.

After explaining how the fault injection controller 102 performs fault injection through the above content, the following content can be continued to explain how the training platform 104 is specifically implemented:

The training platform 104 is used to receive and execute the software fault instruction or the hardware fault instruction sent by the fault injection controller 102 .

The training platform 104 may be, but is not limited to, a wire-controlled steering training platform and a wire-controlled driving and braking training platform.

In one embodiment, the training platform 104 includes: a rapid prototyping controller.

The rapid prototype controller is connected to the peripheral circuit.

When receiving the software fault instruction or the hardware fault instruction sent by the fault injection controller, the rapid prototyping controller performs fault classification on the software fault instruction or the hardware fault instruction; when it is determined that the software fault indicated by the software fault instruction or the hardware fault indicated by the hardware fault instruction is a high-level fault, the training platform 104 is controlled to execute the software fault instruction or the hardware fault instruction, and when the training platform 104 completes the action corresponding to the software fault instruction or the hardware fault instruction, the microprocessor is notified that the training platform 104 has completed the action corresponding to the software fault instruction or the hardware fault instruction.

A fault classification table is pre-stored in the rapid prototype controller, and the corresponding relationship between fault identifiers and fault classifications is recorded in the fault classification table.

The fault classification includes: high-level faults and low-level faults.

Among them, the low-level faults are faults that can be repaired by the vehicle itself: such as the freezing of the on-board computer and the failure of software upgrade in software faults; and the lack of gasoline and replacement of the air-conditioning filter in hardware faults.

The high-level faults are faults in the vehicle that need to be repaired before they can be repaired: such as: on-board computer image display problems and on-board computer software startup failures in software faults; and: engine faults and brake system faults in hardware faults.

Therefore, in the fault classification table, the corresponding relationship between the fault identification and the fault classification can be expressed as follows:

The above correspondence between the fault identification and the fault classification is only an example. The fault identification can also be represented by a code composed of numbers and characters, which will not be repeated here.

In order to perform fault classification on the software fault instruction or the hardware fault instruction, the rapid prototyping controller may execute the following specific process:

The rapid prototyping controller extracts a fault identifier from the obtained software fault instruction or hardware fault instruction; and classifies the software fault instruction or hardware fault instruction according to the extracted fault identifier and the corresponding relationship between the fault identifier and the fault classification recorded in the fault classification table, thereby determining whether the software fault or hardware fault indicated by the software fault instruction or hardware fault instruction belongs to a low-level fault or a high-level fault.

In addition to the above-mentioned rapid prototyping controller, the training platform 104 may also include an actuator. The actuator of the training platform 104 is used to execute software fault instructions or hardware fault instructions determined to be high-level faults under the control of the rapid prototyping controller. The specific execution process is prior art and will not be repeated here.

Software fault elimination process: After the software fault instruction is injected, the operator can find out the cause of the fault according to the original CAN message fed back to the host computer 100 by the fault injection controller.

Hardware fault elimination process: After the hardware fault instruction is injected, the operator needs to diagnose and eliminate the fault according to the fault phenomenon exhibited by the actuator of the training platform 104, the measurement point signal, and the system parameter status displayed in the host computer 100.

From the above content, it can be determined that the software and hardware fault simulation system has the following advantages:

1. Communication is based on the CAN bus. Any node can be added to the CAN bus to achieve external expansion communication, which has the characteristics of functional scalability and observability.

2. It can simulate real hardware faults based on the current training platform, and can also simulate common software faults in car wash computers and ECUs on vehicles other than the current training platform. This greatly improves the practicality of the software and hardware fault simulation system proposed in this embodiment.

3. The software and hardware fault simulation system proposed in this embodiment serves as a teaching platform for demonstration. Software fault injection can train students to master the most commonly used CAN communication capabilities of the upper layer of the autonomous driving system, and hardware fault injection can train students to master common vehicle hardware failures. It can achieve the practical training effects of both vehicle software failures and hardware failures, and conduct comprehensive teaching demonstrations.

In summary, the software and hardware fault simulation system proposed in this embodiment adds a fault injection controller 102 and a host computer 100 on the basis of the existing training platform design architecture. The connection method of the software and hardware fault simulation system proposed in this embodiment: on the basis of the existing training platform design connection method, the host computer 100 interacts with the fault injection controller 102, and the host computer 100 can control the fault injection controller 102, and each relay in the fault injection controller 102 is directly associated with the on-off of the hard wire on the training platform 104. Therefore, by using the software and hardware fault simulation system proposed in this embodiment, the on-off of the line in the training platform 104 can be directly controlled by the host computer 100, so as to achieve the effect of fault injection.

In summary, this embodiment proposes a software and hardware fault simulation system, which sends software fault instructions or hardware fault instructions to a fault injection controller through a set host computer, and the fault injection controller can send the software fault instructions or hardware fault instructions to a training platform for execution; compared with the related art in which the training platform does not have a fault injection function, the host computer and the fault injection controller set in the system can inject the software fault instructions or hardware fault instructions that need to be executed into the training platform, so that students can repeatedly practice fault diagnosis methods and judgment methods, meeting the needs of colleges and universities in actual teaching.

Example 2

This embodiment provides a software and hardware fault simulation method, which is used to implement the functions implemented by the fault injection controller in the software and hardware fault simulation system in the above-mentioned embodiment 1.

Referring to the flowchart of a software and hardware fault simulation method shown in FIG2 , this embodiment proposes a software and hardware fault simulation method, which is used in the software and hardware fault simulation system in the above-mentioned embodiment 1, and the method includes the following specific steps:

Step 200: When a software fault instruction sent by the host computer is obtained, the microprocessor of the fault injection controller sends the software fault instruction to the training platform, and the training platform executes the software fault instruction; when it is determined that the platform has completed executing the software fault instruction, the software fault instruction completion information is sent to the host computer;

Step 202: When a hardware fault instruction sent by the host computer is obtained, determine the relay corresponding to the hardware fault indicated by the hardware fault instruction; control the relay corresponding to the hardware fault indicated by the hardware fault instruction to disconnect; send the hardware fault instruction to the training platform, and the training platform executes the hardware fault instruction; when it is determined that the training platform has completed the execution of the hardware fault instruction, send the hardware fault instruction completion information to the host computer.

In summary, this embodiment proposes a software and hardware fault simulation method, in which a software fault instruction or a hardware fault instruction is sent to a fault injection controller through a set upper computer, and the fault injection controller can send the software fault instruction or the hardware fault instruction to a training platform for execution; compared with the related art in which the training platform does not have a fault injection function, the upper computer and the fault injection controller set in the system can be used to inject the software fault instruction or the hardware fault instruction that needs to be executed into the training platform, so that students can repeatedly practice fault diagnosis methods and judgment methods, meeting the needs of colleges and universities in actual teaching.

Example 3

This embodiment proposes a software and hardware fault simulation device, which is used to execute the software and hardware fault simulation method proposed in the above embodiment 2.

Referring to the structural diagram of a software and hardware fault simulation device shown in FIG3 , this embodiment provides a software and hardware fault simulation device, including:

The software fault control module 300 is used to, when obtaining the software fault instruction sent by the host computer, send the software fault instruction to the training platform, and the training platform executes the software fault instruction; when it is determined that the training platform has completed the execution of the software fault instruction, send the software fault instruction completion information to the host computer;

The hardware fault control module 302 is used to, when obtaining a hardware fault instruction sent by the upper computer, determine the relay corresponding to the hardware fault indicated by the hardware fault instruction; control the relay corresponding to the hardware fault indicated by the hardware fault instruction to be disconnected; send the hardware fault instruction to the training platform, and the training platform executes the hardware fault instruction; when it is determined that the training platform has completed the execution of the hardware fault instruction, send the hardware fault instruction completion information to the upper computer.

In summary, this embodiment proposes a software and hardware fault simulation device, which sends software fault instructions or hardware fault instructions to a fault injection controller through a set host computer, and the fault injection controller can send the software fault instructions or hardware fault instructions to a training platform for execution; compared with the related art in which the training platform does not have a fault injection function, the host computer and the fault injection controller set in the system can inject the software fault instructions or hardware fault instructions that need to be executed into the training platform, so that students can repeatedly practice fault diagnosis methods and judgment methods, meeting the needs of colleges and universities in actual teaching.

Example 4

This embodiment proposes a software and hardware fault simulation method for realizing the functions realized by the rapid prototyping controller of the training platform in the software and hardware fault simulation system in the above-mentioned embodiment 1.

This embodiment provides a software and hardware fault simulation method, which is used in the software and hardware fault simulation system in the above embodiment 1. The method includes:

When receiving the software fault instruction or the hardware fault instruction sent by the fault injection controller, the rapid prototype controller of the training platform performs fault classification on the software fault instruction or the hardware fault instruction; when it is determined that the software fault indicated by the software fault instruction or the hardware fault indicated by the hardware fault instruction is a high-level fault, the training platform is controlled to execute the software fault instruction or the hardware fault instruction, and when the training platform completes the action corresponding to the software fault instruction or the hardware fault instruction, the microprocessor is notified that the training platform has completed the action corresponding to the software fault instruction or the hardware fault instruction.

In summary, this embodiment proposes a software and hardware fault simulation method, in which a software fault instruction or a hardware fault instruction is sent to a fault injection controller through a set upper computer, and the fault injection controller can send the software fault instruction or the hardware fault instruction to a training platform for execution; compared with the related art in which the training platform does not have a fault injection function, the upper computer and the fault injection controller set in the system can be used to inject the software fault instruction or the hardware fault instruction that needs to be executed into the training platform, so that students can repeatedly practice fault diagnosis methods and judgment methods, meeting the needs of colleges and universities in actual teaching.

Example 5

This embodiment provides a software and hardware fault simulation device, which is used to execute the software and hardware fault simulation method provided in the above-mentioned embodiment 4.

This embodiment provides a software and hardware fault simulation device, the device comprising:

When receiving a software fault instruction or a hardware fault instruction sent by a fault injection controller, the control unit is used to perform fault classification on the software fault instruction or the hardware fault instruction; when it is determined that the software fault indicated by the software fault instruction or the hardware fault instruction is a high-level fault, the training platform is controlled to execute the software fault instruction or the hardware fault instruction, and when the training platform completes the action corresponding to the software fault instruction or the hardware fault instruction, the microprocessor is notified that the training platform has completed the action corresponding to the software fault instruction or the hardware fault instruction.

In summary, this embodiment proposes a software and hardware fault simulation device, which sends software fault instructions or hardware fault instructions to a fault injection controller through a set host computer, and the fault injection controller can send the software fault instructions or hardware fault instructions to a training platform for execution; compared with the related art in which the training platform does not have a fault injection function, the host computer and the fault injection controller set in the system can inject the software fault instructions or hardware fault instructions that need to be executed into the training platform, so that students can repeatedly practice fault diagnosis methods and judgment methods, meeting the needs of colleges and universities in actual teaching.

Example 6

This embodiment proposes a computer-readable storage medium, on which a computer program is stored. When the computer program is executed by a processor, the steps in the software and hardware fault simulation method described in the above-mentioned embodiments 2 and 4 are executed. The specific implementation can be referred to the above-mentioned embodiments 2 and 4 of the method, which will not be repeated here.

In addition, referring to the structural diagram of an electronic device shown in FIG4 , this embodiment further provides an electronic device, which includes a bus 51 , a processor 52 , a transceiver 53 , a bus interface 54 , a memory 55 and a user interface 56 . The electronic device includes a memory 55 .

In this embodiment, the electronic device further includes: one or more programs stored in the memory 55 and executable on the processor 52, and the one or more programs are configured to be executed by the processor to perform the following steps (1) to (2):

(1) when a software fault instruction sent by the host computer is obtained, the software fault instruction is sent to the training platform, and the training platform executes the software fault instruction; when it is determined that the platform has completed the execution of the software fault instruction, the completion information of the software fault instruction is sent to the host computer;

(2) When a hardware fault instruction sent by the host computer is obtained, the relay corresponding to the hardware fault indicated by the hardware fault instruction is determined; the relay corresponding to the hardware fault indicated by the hardware fault instruction is controlled to be disconnected; the hardware fault instruction is sent to the training platform, and the training platform executes the hardware fault instruction; when it is determined that the training platform has completed the execution of the hardware fault instruction, the hardware fault instruction completion information is sent to the host computer.

In this embodiment, the electronic device further includes: one or more programs stored in the memory 55 and executable on the processor 52, which are configured to be executed by the processor and can also be used to perform the following steps:

When a software fault instruction or a hardware fault instruction sent by the fault injection controller is received, the software fault instruction or the hardware fault instruction is fault graded; when it is determined that the software fault indicated by the software fault instruction or the hardware fault indicated by the hardware fault instruction is a high-level fault, the training platform is controlled to execute the software fault instruction or the hardware fault instruction, and when the training platform completes the action corresponding to the software fault instruction or the hardware fault instruction, the microprocessor is notified that the training platform has completed the action corresponding to the software fault instruction or the hardware fault instruction.

The transceiver 53 is used to receive and send data under the control of the processor 52.

Among them, the bus architecture (represented by bus 51), bus 51 can include any number of interconnected buses and bridges, and bus 51 links various circuits including one or more processors represented by processor 52 and memory represented by memory 55. Bus 51 can also link various other circuits such as peripherals, voltage regulators, and power management circuits together, which are all well known in the art, so this embodiment will not be further described. Bus interface 54 provides an interface between bus 51 and transceiver 53. Transceiver 53 can be one element or multiple elements, such as multiple receivers and transmitters, providing a unit for communicating with various other devices on a transmission medium. For example: transceiver 53 receives external data from other devices. Transceiver 53 is used to send data processed by processor 52 to other devices. Depending on the nature of the computing system, a user interface 56, such as a keypad, display, speaker, microphone, joystick, can also be provided.

The processor 52 is responsible for managing the bus 51 and general processing, such as running a general operating system as mentioned above, while the memory 55 can be used to store data used by the processor 52 when performing operations.

Optionally, the processor 52 may be, but is not limited to: a central processing unit, a single-chip microcomputer, a microprocessor or a programmable logic device.

It can be understood that the memory 55 in the embodiment of the present invention can be a volatile memory or a non-volatile memory, or can include both volatile and non-volatile memories. Among them, the non-volatile memory can be a read-only memory (ROM), a programmable read-only memory (PROM), an erasable programmable read-only memory (EPROM), an electrically erasable programmable read-only memory (EEPROM), or a flash memory. The volatile memory can be a random access memory (RAM), which is used as an external cache. By way of example but not limitation, many forms of RAM are available, such as static random access memory (SRAM), dynamic random access memory (DRAM), synchronous dynamic random access memory (SDRAM), double data rate synchronous dynamic random access memory (DDRSDRAM), enhanced synchronous dynamic random access memory (ESDRAM), synchronous link dynamic random access memory (SLDRAM) and direct RAM bus random access memory (DRRAM). The memory 55 of the system and method described in the present embodiment is intended to include, but is not limited to, these and any other suitable types of memory.

In some implementations, the memory 55 stores the following elements, executable modules or data structures, or a subset thereof, or an extended set thereof: an operating system 551 and application programs 552 .

The operating system 551 includes various system programs, such as a framework layer, a core library layer, a driver layer, etc., which are used to implement various basic services and process hardware-based tasks. The application 552 includes various application programs, such as a media player (Media Player), a browser (Browser), etc., which are used to implement various application services. The program for implementing the method of the embodiment of the present invention can be included in the application 552.

In summary, this embodiment proposes a computer-readable storage medium and an electronic device, which sends a software fault instruction or a hardware fault instruction to a fault injection controller through a set host computer, and the fault injection controller can send the software fault instruction or the hardware fault instruction to a training platform for execution; compared with the related art in which the training platform does not have a fault injection function, the host computer and the fault injection controller set in the system can be used to inject the software fault instruction or the hardware fault instruction that needs to be executed into the training platform, so that students can repeatedly practice fault diagnosis methods and judgment methods, meeting the needs of colleges and universities in actual teaching.

The above is only a specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art who is familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed by the present invention, which should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.

Claims (11)

1. A software-hardware fault simulation system for simulating a software-hardware fault of an unmanned vehicle, the system comprising:

the system comprises an upper computer, a fault injection controller and a practical training platform, wherein the fault injection controller is respectively connected with the upper computer and the practical training platform;

The upper computer is configured to send a fault instruction to the fault injection controller, where the fault instruction includes: software fault instructions and hardware fault instructions; the hardware fault instruction is used for indicating a fault instruction generated when an engine, a braking system and an air bag of the vehicle are in fault;

The fault injection controller is used for sending the acquired software fault instruction or hardware fault instruction to the practical training platform; the fault injection controller is a CAN control 16-way relay integrated board and directly triggers the on-off of a relay of the 16-way relay integrated board, so that the function of hardware fault injection is achieved;

The training platform is used for receiving and executing the software fault instruction or the hardware fault instruction sent by the fault injection controller;

The training platform comprises: a rapid prototyping controller;

the fault injection controller includes: a microprocessor, and peripheral circuitry;

the microprocessor, the upper computer and the training platform are respectively connected with the peripheral circuit;

the rapid prototyping controller is connected with the peripheral circuit;

when a hardware fault instruction sent by the fault injection controller is received, the rapid prototyping controller carries out fault classification on the hardware fault instruction; when the hardware fault indicated by the hardware fault instruction is determined to be a high-level fault, controlling the practical training platform to execute the hardware fault instruction, and informing the microprocessor that the practical training platform has executed the action corresponding to the hardware fault instruction when the practical training platform executes the action corresponding to the hardware fault instruction; wherein the high-level fault is a fault in the vehicle that requires repair for repair.

2. The software and hardware fault simulation system of claim 1, wherein,

When a software fault instruction sent by the upper computer is obtained, the microprocessor sends the software fault instruction to the practical training platform, and the practical training platform executes the software fault instruction; and when the fact that the practical training platform finishes executing the software fault instruction is determined, sending the software fault instruction completion information to the upper computer.

3. The software-hardware fault simulation system of claim 2, wherein the fault injection controller further comprises: a relay module; the relay module comprises a plurality of relays corresponding to different hardware faults respectively;

each relay in the plurality of relays is connected with the peripheral circuit respectively;

When a hardware fault instruction sent by the upper computer is obtained, the microprocessor determines a relay corresponding to the hardware fault indicated by the hardware fault instruction, and controls the relay corresponding to the hardware fault indicated by the hardware fault instruction to be disconnected; the hardware fault instruction is sent to the practical training platform, and the practical training platform executes the hardware fault instruction; and when the fact that the training platform finishes executing the hardware fault instruction is determined, sending the hardware fault instruction completion information to the upper computer.

4. A software and hardware fault simulation system according to claim 2 or 3, wherein,

When receiving a software fault instruction sent by the fault injection controller, the rapid prototyping controller performs fault classification on the software fault instruction; when the software fault indicated by the software fault instruction is determined to be a high-level fault, controlling the practical training platform to execute the software fault instruction, and informing the microprocessor that the practical training platform has executed the action corresponding to the software fault instruction when the practical training platform executes the action corresponding to the software fault instruction.

5. A software and hardware fault simulation system according to claim 2 or 3, wherein the fault injection controller further comprises: a buzzer;

The buzzer is connected with the microprocessor;

When a software fault instruction or a hardware fault instruction sent by the upper computer is obtained, the microprocessor controls the buzzer to sound.

6. A software and hardware fault simulation method for a software and hardware fault simulation system according to any of the claims 1-5, the method comprising:

When a software fault instruction sent by an upper computer is obtained, a microprocessor of a fault injection controller sends the software fault instruction to a practical training platform, and the practical training platform executes the software fault instruction; when the platform execution is determined to be finished, sending the software fault instruction completion information to the upper computer;

When a hardware fault instruction sent by an upper computer is obtained, determining a relay corresponding to a hardware fault indicated by the hardware fault instruction; controlling the relay corresponding to the hardware fault indicated by the hardware fault instruction to be disconnected; the hardware fault instruction is sent to the practical training platform, and the practical training platform executes the hardware fault instruction; and when the fact that the training platform finishes executing the hardware fault instruction is determined, sending the hardware fault instruction completion information to the upper computer.

7. A software and hardware fault simulation apparatus for performing the software and hardware fault simulation method of claim 6, said apparatus comprising:

The software fault control module is used for sending the software fault instruction to the practical training platform when the software fault instruction sent by the upper computer is obtained, and executing the software fault instruction by the practical training platform; when the fact that the training platform finishes executing the software fault instruction is determined, sending the software fault instruction completion information to the upper computer;

The hardware fault control module is used for determining a relay corresponding to the hardware fault indicated by the hardware fault instruction when the hardware fault instruction sent by the upper computer is acquired; controlling the relay corresponding to the hardware fault indicated by the hardware fault instruction to be disconnected; the hardware fault instruction is sent to the practical training platform, and the practical training platform executes the hardware fault instruction; and when the fact that the training platform finishes executing the hardware fault instruction is determined, sending the hardware fault instruction completion information to the upper computer.

8. A software and hardware fault simulation method for a software and hardware fault simulation system according to any of the claims 1-5, the method comprising:

When receiving a software fault instruction or a hardware fault instruction sent by the fault injection controller, the rapid prototype controller of the practical training platform performs fault classification on the software fault instruction or the hardware fault instruction; when the software fault indicated by the software fault instruction or the hardware fault indicated by the hardware fault instruction is determined to be a high-level fault, controlling the practical training platform to execute the software fault instruction or the hardware fault instruction, and informing a microprocessor that the practical training platform has executed the action corresponding to the software fault instruction or the hardware fault instruction when the practical training platform executes the action corresponding to the software fault instruction or the hardware fault instruction.

9. A software and hardware fault simulation apparatus for performing the software and hardware fault simulation method according to claim 8, said apparatus comprising:

When receiving a software fault instruction or a hardware fault instruction sent by a fault injection controller, a control unit is used for carrying out fault classification on the software fault instruction or the hardware fault instruction; when the software fault indicated by the software fault instruction or the hardware fault instruction is determined to be a high-level fault, controlling the practical training platform to execute the software fault instruction or the hardware fault instruction, and informing a microprocessor that the practical training platform has executed and completed the action corresponding to the software fault instruction or the hardware fault instruction when the practical training platform executes and completes the action corresponding to the software fault instruction or the hardware fault instruction.

10. A computer readable storage medium having stored thereon a computer program, characterized in that the computer program when executed by a processor performs the steps of the method of the preceding claim 6 or 8.

11. An electronic device comprising a memory, a processor and one or more programs, wherein the one or more programs are stored in the memory and configured to perform the steps of the method of claim 6 or 8 by the processor.