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Data mining-based hardware circuit FMEA (Failure Mode and Effects Analysis) method

A hardware circuit and data mining technology, applied in the direction of electronic circuit testing, etc., can solve problems such as complex efficiency and low efficiency

Inactive Publication Date: 2014-12-10
UNIV OF ELECTRONICS SCI & TECH OF CHINA
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This method relies on the rich experience of FMEA personnel and massive statistical data, which makes the traditional FMEA method highly subjective and limited, complex and inefficient

Method used

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  • Data mining-based hardware circuit FMEA (Failure Mode and Effects Analysis) method
  • Data mining-based hardware circuit FMEA (Failure Mode and Effects Analysis) method
  • Data mining-based hardware circuit FMEA (Failure Mode and Effects Analysis) method

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Embodiment 1

[0160] Embodiment 1: Taking the counter circuit as the actual case processing object to illustrate the FMEA method of the hardware circuit system based on data mining. The counter circuit is composed of a differential circuit, a rectification circuit, etc., and its circuit schematic diagram is as follows: figure 2 As shown, the normal simulation output waveform of the circuit is as follows image 3 shown. The external condition of this embodiment defaults to the environment variable used as G B : The ground is good: it can maintain normal climate conditions, the mechanical stress is close to zero, the ground is good, and its maintenance conditions are good. For example, there are laboratories or large ground stations with temperature and humidity control. The quality coefficient and maturity coefficient of components are both defaulted to 1 .

[0161] For this embodiment, the selected components are shown in Table 5 below.

[0162] Table 5 List of counter components

[0...

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Abstract

The invention discloses a data mining-based hardware circuit FMEA (Failure Mode and Effects Analysis) method. The method comprises the following steps: establishing a corresponding failure simulation model specific to the failure signature way of research elements, traversing each element in a normal circuit, injecting the failure model of each element, acquiring a potential failure circuit, and generating a normal circuit simulation result and failure circuit simulation results in a simulation tool; comparing each failure circuit simulation result with the normal circuit simulation result, extracting difference characteristic values, and acquiring the failure mode of the hardware circuit by means of clustering analysis of the difference characteristic values; finishing FMEA processing in combination with the failure mode of the hardware circuit according to an FMEA basic method in order to automatically generate a corresponding FMEA report. Through adoption of the data mining-based hardware circuit FMEA method, the requirements on the circuit function cognition and FMEA processing experience of FMEA personnel can be lowered to the maximum extent; the method is simple and efficient.

Description

technical field [0001] The invention belongs to the field of hardware circuit reliability prediction analysis, and in particular relates to a hardware circuit FMEA analysis method based on data mining. Background technique [0002] The hardware circuit FMEA analysis and processing technology is a technology for predicting the reliability information of the hardware circuit and proposing an improvement plan to improve the reliability of the hardware circuit. It analyzes the potential failure mode of the hardware circuit as a means to systematically evaluate the occurrence degree of the potential failure mode, the severity of the damage to the overall system when it occurs, and the degree of detectability, etc., and then obtains the reliability information of the hardware circuit comprehensively, and In this way, possible improvements and amendments are proposed. [0003] Traditional hardware circuit FMEA analysis methods still mostly use the failure mode of the internal comp...

Claims

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Application Information

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IPC IPC(8): G01R31/28
Inventor 何春赵和平刘欣宗竹林黎亮蒋剑朱娟
Owner UNIV OF ELECTRONICS SCI & TECH OF CHINA
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