基于PLC的无线车辆门禁管理系统

发布时间：2018-08-20 19:19

【摘要】：近年来,随着汽车在我国的日益普及,对车辆进出的门禁管理及信息记录的便利性要求日益突出。现今这类管理多以两类方式实现。一类以人工观望或刷卡方式实现,不论人工观望记录的管理方式或是刷卡的方式在进出门时都需要在特定位置停车,开窗,比较麻烦,且速度较慢。特别是在雨天,冷天等天气,给驾驶人员和工作人员带来不便。另一类则是通过计算机图像识别软件进行实现,但是当计算机发生故障时,系统便不能正常运行,其还受到光线,车牌污损等因素的影响,并且成本相对较高。为了解决上述问题,本设计旨在研发一种低成本的新型无线车辆门禁管理系统,车辆通过门禁时,其所携带的带有车辆识别标志的身份识别器将车辆信息通过无线信号传递到PLC, PLC再结合上位机进行门禁管理与信息记录。该系统将可极大的提高车辆门禁管理系统的便捷性与安全性。本文首先概括的介绍了无线车辆门禁管理系统的功能以及结构框图,然后对各部分进行了详细说明。在车辆识别接收端设计了具有Weigand26协议的通用接口模块,可以无需任何硬件上的改变就可以方便地接入以韦根信号格式输出识别信息的设备,为本系统的升级与完善留下了空间。设计中引入了超外差接收模块以及无线发射模块PT2262,当车载身份识别器中的PT2262发射带有车辆信息的无线信号时,信号适配模块接受到超外差接收模块输出的信号解码并编码输出给PLC, PLC记录并储存,之后传递给上位机PC,实现车辆进出信息的记录。本设计实现的关键是无线信号与PLC, PLC与上位机之间的通信,本文将详细介绍无线信号与三菱FX系列PLC之间通信,PLC与管理计算机之间的通信。其次根据对系统需求的分析,设计了上位机系统功能框架、数据库框架,采用C#编程语言以及SQLServer 2008数据库进行了配套管理软件的设计与开发。论文最后就所做的工作进行了总结,对本无线门禁系统的不足进行了分析,并且提出了系统的改进方案。文中涉及的技术已获得实用新型专利授权,相关的发明专利已在受理中。
[Abstract]:In recent years, with the increasing popularity of automobiles in China, the requirements of access control and information recording are increasingly prominent. Nowadays, this kind of management is implemented in two ways. One is realized by manual watching or card swiping. Both the management mode of manual watching and recording or the way of swiping credit card need to stop at a specific position, open windows, be more troublesome, and the speed is slower when entering or leaving the door. Especially in rainy, cold weather and other weather, to the driver and staff inconvenience. The other is realized by computer image recognition software, but when the computer fails, the system can not run normally, it is also affected by light, license plate fouling and other factors, and the cost is relatively high. In order to solve the above problems, the purpose of this design is to develop a low-cost new wireless vehicle access control system. The vehicle information is transmitted to the PLCs by the identification device with the vehicle identification sign, and the PLC is combined with the upper computer to manage the access control and record the information. This system will greatly improve the convenience and safety of vehicle entrance control system. In this paper, the function and structure of the wireless vehicle access control management system are introduced, and then each part is explained in detail. A general interface module with Weigand26 protocol is designed at the receiving end of vehicle identification, which can easily access the equipment with Wegan signal format to output identification information without any hardware changes, leaving room for the upgrade and perfection of the system. The superheterodyne receiving module and the wireless transmitting module PT2262 are introduced in the design. When the PT2262 in the vehicle identity recognizer transmits the wireless signal with the vehicle information, The signal adaptation module receives the signal output from the superheterodyne receiving module decodes and encodes and outputs it to PLCs, PLC records and stores, and then passes to the PC to record the information of vehicles entering and leaving. The key of this design is the communication between wireless signal and PLC, PLC and host computer. This paper introduces the communication between wireless signal and Mitsubishi FX series PLC and the communication between PLC and management computer in detail. Secondly, according to the analysis of the system requirement, the function frame and database frame of the upper computer system are designed, and the supporting management software is designed and developed by using C # programming language and SQLServer 2008 database. Finally, the paper summarizes the work done, analyzes the shortcomings of the wireless access control system, and puts forward the improvement scheme of the system. The technology involved in this paper has been granted a patent for utility model, and the related invention patent has been accepted.
【学位授予单位】：广西师范大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：U495

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