【作者】 张耀宇；

【导师】 毛玉良；

【作者基本信息】 东南大学 ， 机械电子工程， 2006， 硕士

【摘要】 本文介绍了半导体放电管及其测试技术的发展和应用现状,在此基础上,结合课题的实际需要,进行了全自动半导体放电管分选测试系统的研究与开发。论文首先对通信行业标准中关于通信设备过电压保护用半导体放电管的测试规范进行了分析,并探讨了现场总线技术的特点及其应用,采用模块化设计的理念,确定了基于CAN现场总线的分选测试系统的总体方案结构。在硬件设计方面,根据本课题的分选测试系统的具体功能要求和其机械部分的构成和工作原理,设计出了该系统的核心控制单元――控制主板,并完成对控制主板的调试工作。另外,对于半导体放电管转折电压的测试,设计出相应的转折电压测试板,并完成调试。论文详细叙述了半导体放电管转折电压测试模块的组成和设计过程,包括运放高压扩展电路、峰值保持等电路以及相关的调试情况。软件部分,编写了PC上的测试程序,各功能模块的测试和控制程序。本文阐述了上位机程序的功能和实现方法,并制定了基于RS-232串口通信调试的规约,使每个模块都能单独调试;模块之间则是通过CAN总线连接,每个模块都是总线上的一个节点,通过对节点中的微控制器的程序设计,各节点可以联机调试,并通过本文制定的初步协议来实现相互的通信。论文中,还对CAN总线应用领域的一些应用层协议进行了概述,并参照DeviceNet协议的要求,基本实现了基于DeviceNet协议的分选测试系统的智能节点间的通信。在论文的最后对课题进行了总结,并对该分选测试系统提出了一些新的构想。更多还原

【Abstract】 This thesis describes the development of semiconductor arrester testing and application. On the basis of these, the research and development of full automatic semiconductor arrester testing and sorting system is carried out according to actual demand.First, the thesis analyzes the criterion about semiconductor arrester for the over-voltage protection of telecommunication installations and discusses the characteristic and application of field bus technique. The overall project of the testing and sorting system based on CAN-BUS technique is made by modular design.In hardware, according to the functional require of the testing and sorting system and the composing and operational principle of the mechanism, the central control unit of the system, control main board, is designed and debugged. Besides, the test board which is used for testing the semiconductor arrester’s breakover voltage is designed. The thesis goes into particulars the makeup and the design process of the test module for the semiconductor arrester’s breakover voltage, which involves the operational amplifier’s high voltage enlarge circuit, peak hold circuit and debugging of them.In software, the mainframe test program and the test and control program for each functional module are compiled. The thesis introduced the function and implement method of mainframe program. The rule, which made each module could be debugged by oneself, based on serial communication is established. Each module is a node of CAN-BUS, which could be online debugging by the program loading the microcontroller of them and could correspond with each other by the primary communication protocol.The thesis also summarizes some CAN application layer protocol and refers to the requirement of DeviceNet protocol. The communication that grounded on DeviceNet protocol among intelligent notes of semiconductor arrester testing and sorting system.is realized basically.In the end, a conclusion of this thesis and some new ideas for the testing and sorting system are made.更多还原