基于无线扩频技术的停车引导系统设计
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摘要
针对当前大型地下停车场车位引导系统存在的检测、通信等问题,提出了一种新的基于无线扩频技术的停车引导系统方案。首先介绍了系统的体系结构,其次详细描述了低功耗磁场检测电路,LoRa无线通信模块、集中器、中央处理器的工作原理、结构组成、硬件设计方法,并系统阐述了各模块的软件工作流程。经安装测试,测试结果表明该系统具有检测准确性高、通信稳定可靠及安装方便等优点。对大型地下停车场引导系统的设计具有一定的参考价值。
In order to solve the problems of detection and communication of current large underground parking guidance system, a new design scheme of parking guidance system based on wireless spread spectrum technology is proposed. The structure of the system is introduced. The operating principle, structure and hardware design of low-power magnetic field detection circuit, LoRa wireless communication module, concentrator and central processor are described in detail, while the software workflow of modules is explained. Test results show that the system has the advantages of high detection accuracy, stable and reliable communication and convenient installation. It has a certain reference value for the design of large underground parking guidance system.
In order to solve the problems of detection and communication of current large underground parking guidance system, a new design scheme of parking guidance system based on wireless spread spectrum technology is proposed. The structure of the system is introduced. The operating principle, structure and hardware design of low-power magnetic field detection circuit, LoRa wireless communication module, concentrator and central processor are described in detail, while the software workflow of modules is explained. Test results show that the system has the advantages of high detection accuracy, stable and reliable communication and convenient installation. It has a certain reference value for the design of large underground parking guidance system.
引文
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[3]张延丽,李春贵.视频车辆检测中改进的阈值分割算法研究[J].广西科技大学学报,2017,28(2):61-66.
[4]刘策,刘玉波,杨威.扩频通信技术的应用及其系统的工作原理分析[J].通讯世界,2016,(7):44-45.
[5]赵大恒,李春祎,孟景涛.一种频域抗干扰技术在扩频通信中的应用[J].无线电通信技术,2016,42(5):92-95.
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