On Implementing And Researching BIT Capability In Airborne Computer

TIAN Xin-yu; YAO Ying

Chinese

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On Implementing And Researching BIT Capability In Airborne Computer

更新时间：2026-09-04

- On Implementing And Researching BIT Capability In Airborne Computer
- Vol. 36, Issue 4, Pages: 29-32(2019)
- 作者机构：
  
  1. 西北工业大学365所,陕西,西安,710065
  2. 西安邮电大学机构电子工程学院,陕西,西安,710199
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Published：2019
- 稿件说明：
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田心宇, 姚英. 一种新型BIT技术在机载计算机设计中的应用研究[J]. 微电子学与计算机, 2019, 36(4): 29-32.

TIAN Xin-yu, YAO Ying. On Implementing And Researching BIT Capability In Airborne Computer[J]. 2019, 36(4): 29-32.
田心宇, 姚英. 一种新型BIT技术在机载计算机设计中的应用研究[J]. 微电子学与计算机, 2019, 36(4): 29-32. DOI：

TIAN Xin-yu, YAO Ying. On Implementing And Researching BIT Capability In Airborne Computer[J]. 2019, 36(4): 29-32. DOI：

摘要

BIT (Built-in Test)技术由于其不依赖外部设备

仅使用自身软、硬件完成故障诊断及隔离的特点

目前成为提高机载计算机测试性和维修性的有效措施."故障覆盖率"和"虚警率"是评价BIT系统的两个重要因素

较低的故障覆盖率是阻碍BIT技术在机载计算机中广泛应用的一个重要原因.本文在对机载计算机BIT故障检测机理进行分析的基础上

提出一种新型的机载计算机BIT故障检测方法

并给出关键技术解决方案

经过实践证明使用该策略后机载计算机BIT系统的故障覆盖率显著增长

机载计算机的可靠性及可维护性明显提高.

Abstract

BIT (Built-in Test) technology is an effective measure to improve the testability and maintainability of the airborne computers for the Characteristics that it does not rely on external equipment and uses its own software and hardware to complete fault diagnosis and isolation. "Fault coverage" and "false alarm rate" are two important factors in evaluating BIT systems. Lower fault coverage is an important reason to hinder the widespread use of BIT technology in airborne computers. Based on the analysis of the BIT fault detection mechanism in the airborne computer

a new BIT fault detection method in the airborne computer is proposed

and the key technical solutions are given in this paper. It is proved by practice that the Fault coverage has increased significantly of the airborne computer BIT systems

the reliability and maintainability of the airborne computer have increased significantly after using this strategy.

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references

CHEN PU, XU HENG-CHENG.Aviation Electron System BIT Summary [J].China Water Transport(Academic Version), 2002, 6(2):108-110. DOI: 108

张小林.小型飞行器机载计算机的余度设计技术[J].西北工业大学学报, 2001, 19(2) : 274- 278. DOI: 274

吕学志, 于永利, 张汉峰, 等.具有机内测试设备的复杂可修系统的建模与仿真方法[J].兵工学报, 2011, 32 (3) : 378-384. DOI: 378

田心宇, 张小林, 吴海涛, 等.机载计算机BIT虚警及解决策略研究[J].西北工业大学学报, 2011, 29(3) : 400-404. DOI: 400

JEFFEY SMITY, Built in Test - Coverage and Diagnostics [J]. 978-1-4244-4981-1/09/2009 IEEE.

SHI J Y, LI J Z, SHI M. Method of automated BIT false alarms simulation based on EDA [C]//Industrial Electronics and Ap-plications (ICIEA), 2011 6th IEEE Conference on. Beijing: IEEE Press, 2011: 1449-1453.

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