自动舵电路板故障测试系统研究

针对自动舵故障电路板需要返厂测试的问题,设计自动舵电路板便携式故障测试系统。在分析自动舵电路板故障测试需求的基础上,采用专用接口电缆和测试软件而复用数据采集系统的方法,仅用少数硬件就实现了多块电路板的测试;基于神经网络方法设计自动测试软件,能够定位电路板常见故障;采用Measurement Studio和Visual Studio联合编程的方法,设计了辅助信息丰富的故障诊断程序界面。实践表明:该系统具有成本低、体积小、功能强的特点,可在船上直接对电路板进行故障测试。

Research on fault test for circuit boards of auto rudders

The fault test for the circuit board of auto rudders is usually made by the manufacturer factory.That costs too much.A new fault test system was developed to solve the problem.The authors use few data acquisition system hardware for all circuit boards,but special interface cables and special test software were designed for each kinds of board.Then many different boards can be tested by the same system.Auto test software based on neural network was developed to diagnosis normal faults.The Measurement Studio and Visual Studio were chosen to develop the test software to enrich the software interface.The system was characterized by low cost,small cubage and powerful function.The fault circuit boards can be tested on shipboard directly.