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基于PLC的车载通信设备自动化控制系统设计

2018-04-13朱亚峰陈志坚

现代电子技术 2018年8期

朱亚峰 陈志坚

摘 要: 针对传统车载通信设备控制系统一直存在易受复杂环境干扰和控制准确性差等问题。提出并设计基于PLC的车载通信设备自动化控制系统。该系统主要包括自动化模块、控制模块、通信模块,通过PLC技术构建自动化模块,对数据属性进行优化配置,完成数据信息的交互;根据信息反馈技术对通信信号载波进行调试,采用多渠道输送模式提高信号交换性能,实现车载通信设备自动化控制系统的设计。实验结果表明,采用改进设计的控制系统,相比传统控制系统,其控制精度增加、效率较高,同时具有较强的抗干扰能力。

关键词: 车载通信设备; 复杂环境; 多渠道输送; 信号载波; 信息反馈; 控制系统

中图分类号: TN964?34; TN913 文献标识码: A 文章编号: 1004?373X(2018)08?0037?04

Abstract: In allusion to the problems that the traditional vehicle?mounted communication equipment control system is always vulnerable to interference of complex environment, and has poor control accuracy, a PLC?based automatic control system for vehicle?mounted communication equipment is proposed and designed. The system mainly consists of automation module, control module and communication module. The automation module is established by using PLC technology to optimize the configuration of data attributes and complete the interaction of data information. According to the information feedback technology, the communication signal carriers are debugged. The multi?channel transmission mode is adopted to improve the signal exchange performance and realize the design of automation control system for vehicle?mounted communication equipment. The experimental results show that in comparison with the traditional control system, the control system with improved design has better control accuracy, higher efficiency and stronger anti?interference capability.

Keywords: vehicle?mounted communication equipment; complex environment; multi?channel transmission; signal carrier; information feedback; control system

0 引 言

随着自动化控制系统的不断发展,PLC技术得到了广泛应用。传统车载通信设备控制系统在通信控制过程中,存在抗干扰能力差和控制准确性低的不足。本文提出基于PLC的车载通信设备自动化控制系统设计。该控制系统利用PLC技术的传输性能和可编程性,进行通信逻辑控制,以PLC 控制模块为通信控制系统的核心[1],利用调制解调单元,对命令信号进行调制调解,利用通信协议、通信端口设置实现通信设计。为了验证设计系统的可靠性、抗干扰能力及准确性[2],分别对传统控制系统和PLC控制系统进行可靠性实验、抗干扰性实验和准确性实验。基于实验结果表明,PLC控制系统改善了传统控制系统抗干扰能力差和控制准确性低的不足,同时提高了传输稳定性,保障了车载通信设备自动化控制系统安全运行。……

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