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Universal-type circuit fault simulation system with fault injection function

A circuit fault and fault injection technology, applied in the electrical field, can solve the problems such as difficulty in meeting the timeliness verification requirements of fault diagnosis methods, inability to obtain fault data accurately and efficiently, and lack of fault injection methods, so as to meet the verification requirements and improve the Efficiency, the effect of simplifying complexity

Inactive Publication Date: 2013-12-25
HARBIN INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to solve the problem that the existing fault simulation system cannot obtain fault data accurately and efficiently due to the lack of effective fault injection means, and it is difficult to meet the timeliness verification requirements of the existing fault diagnosis method, and provides a A General Circuit Fault Simulation System with Fault Injection Function

Method used

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  • Universal-type circuit fault simulation system with fault injection function
  • Universal-type circuit fault simulation system with fault injection function
  • Universal-type circuit fault simulation system with fault injection function

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specific Embodiment approach 1

[0018] Specific implementation mode one: the following combination figure 1 Describe this embodiment mode, a kind of general-purpose circuit fault simulation system with fault injection function described in this embodiment mode, it comprises host computer 1, fault injection module 2, circuit module 3 and data acquisition module 5 with fault simulation function;

[0019] The host computer 1 is connected to the fault injection module 2 through a LAN network, and realizes transmission and control of fault setting signals by analyzing control commands;

[0020] The M road drive signal output end of the fault injection module 2 is connected to the M road drive signal input end of the circuit module 3 with fault simulation function, and the circuit fault simulation signal output end of the circuit module 3 with fault simulation function is connected to the data acquisition module 5 The input terminal of the circuit fault simulation signal, wherein, M is a positive integer;

[0021...

specific Embodiment approach 2

[0022] Specific implementation mode two: the following combination figure 1 Describe this embodiment mode, this embodiment mode is further described to embodiment mode two, and fault injection module 2 described in this embodiment mode comprises No. 1 FPGA2-1, No. 1 ARM7 embedded module 2-3 and relay array and driving circuit 2-2 ;

[0023] The failure setting signal input and output terminals of the No. 1 ARM7 embedded module 2-3 are the failure setting signal input and output terminals of the failure injection module 2;

[0024] The fault setting signal output end of the No. 1 ARM7 embedded module 2-3 is connected to the fault setting confirmation signal input end of No. 1 FPGA2-1;

[0025] The drive control signal output end of the No. 1 FPGA2-1 is connected to the drive control signal input end of the relay array and the drive circuit 2-2;

[0026] The relay array and the M drive signal output terminals of the drive circuit 2 - 2 are the M drive signal output terminals o...

specific Embodiment approach 3

[0027] Specific implementation mode three: the following combination figure 1 Describe this embodiment mode, this embodiment mode is further described to embodiment mode one, and the data acquisition module 5 described in this embodiment mode comprises No. 2 FPGA5-1, No. 2 ARM7 embedded module 5-2, signal conditioning circuit 5-5 and ADC Analog-to-digital converters 5-6;

[0028] The circuit failure simulation signal input end of the signal conditioning circuit 5-5 is the circuit failure simulation signal input terminal of the data acquisition module 5;

[0029] The circuit fault simulation adjustment signal output end of the signal conditioning circuit 5-5 is connected to the ADC analog-to-digital converter 5-6 circuit fault simulation adjustment signal input end;

[0030] Said ADC analog-to-digital converter 5-6 circuit failure simulation digital signal output terminal is connected to the circuit failure simulation digital signal input terminal of No. 2 FPGA5-1;

[0031] T...

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Abstract

The invention discloses a universal-type circuit fault simulation system with a fault injection function, and belongs to the field of electricity. The universal-type circuit fault simulation system solves the problems that an existing fault simulation system can not obtain fault data accurately and efficiently due to lack of an effective fault injection means, and the timeliness verification demand of an existing fault diagnosis method can not be met easily. A fault injection module is connected with a host computer through an LAN, and a control command sent by the host computer is analyzed so that transmission and control of fault setting signals can be achieved. The output ends of M driving signals of the fault injection module are connected with the input ends of M driving signals of a circuit module with a fault simulation function. The circuit fault simulation signal output end of the circuit module with the fault simulation function is connected with the circuit fault simulation signal input end of a data acquisition module. The M is a positive integer. The data acquisition module is connected with the host computer through the LAN so that data interaction can be completed, and the universal-type circuit fault simulation system with the fault injection function is used for collecting fault samples of various circuit boards.

Description

technical field [0001] The invention relates to a general-purpose circuit fault simulation system with a fault injection function, which belongs to the field of electricity. Background technique [0002] With the increasingly perfect functions of large-scale systems such as missiles and satellites, the reliability requirements for them continue to increase, and electronic equipment, as an important part of large-scale systems, is the core part of the entire system, so it is urgent to study the corresponding fault diagnosis technology . However, common fault diagnosis methods face two serious problems: the lack of actual fault samples and the lack of practical verification of diagnostic methods, which makes it difficult to extend theoretically excellent methods to practical applications. [0003] The lack of fault sample data is an important reason that hinders the verification of the effectiveness of various fault diagnosis methods. However, in the existing fault simulation...

Claims

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Application Information

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IPC IPC(8): G01R31/28
Inventor 杨智明乔立岩庞文青刘思廷付宁彭喜元
Owner HARBIN INST OF TECH