| 计算机联锁中安全电源控制板测试频率发生器的设计与实现 |
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| 引用本文： | 陈忱,刘培顶.计算机联锁中安全电源控制板测试频率发生器的设计与实现[J].铁路计算机应用,2016,25(5):54-57. |
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| 作者姓名： | 陈忱 刘培顶 |
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| 作者单位： | 1.西南交通大学 信息科学与技术学院,成都 610031; |
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| 摘 要： | 计算机联锁系统中通常会设计有安全输出电路，用来保障计算机联锁平台的安全性能。在某些型号计算机联锁系统的安全输出电路中，会通过安全电源控制板对一个连续固定频率信号的选频，来隔离输出用以控制安全继电器的电源信号。为此设计了一种基于51系列单片机和MAX038信号发生芯片的频率发生器，用以来模拟输出该频率信号，基于Qt设计了上位机程序来实现对频率信号的监测与调控。文中详细介绍了该发生器在结构的搭建、硬件和软件方面的设计。
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| 关 键 词： | 计算机联锁 频率发生器 AT89S52 MAX038 Qt |
| 收稿时间： | 2015-11-09 |
Testing frequency generator for security power control model in Computerbased Interlocking System |
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| Institution: | 1.School of Information Science and Technology, Southwest Jiaotong University, Chengdu 610031, China;2.Department of Electrification and Communication, The Third Railway Survey and Design lnstitute Group Corporation, Tianjin 300142, China |
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| Abstract: | In the Computer-based Interlocking System, a safety output module is usually designed to guarantee the safety performance of computer-based interlocking platform. In some kinds of safety output module of the Computerbased Interlocking System, the frequency-selecting function of a continuous fixed frequency signal was used to isolate the output for controlling the power signal of safety relay. The authors designed a frequency generator based on 51series single-chip microcomputer and MAX038 signal generator chip to simulate the output of this frequency signal, and PC program based on Qt to implement the monitoring and regulation of the frequency signal. This article described the construction, hardware and software design of the generator. |
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