基于自载重和GPS的无线网络车辆网监控系统研究

发布时间：2018-06-07 17:23

本文选题：自载重 + 超声波测距　；参考：《东北大学》2014年硕士论文

【摘要】：我国是交通运输大国,如今很多运输业户受经济利益驱动,在运输生产中严重的超限超载,除了对车辆本身造成一定危害外更重要的是会导致公路设旌损坏严重并引发安全事故。因此各地方政府在车载计量管理以及实时监控方面均加大了力度。本文以河北省交通运输厅科技项目为依托,从测量汽车钢板弹簧的形变量入手,提出了一套基于超声波和红外线测距、GPS+北斗双定位和无线通信的车辆网监控系统,并给出了测距装置的具体安装方案。论文首先介绍了汽车自载重测量的数学模型,并建立了载重量与钢板弹簧变形量的函数关系,以此作为理论依据来对自载重测量装置进行硬件及软件开发。在硬件设计方面,先利用超声波传感器结合R8C/2L芯片作为测距装置进行初步的理论验证,之后提出了一种以PSD为核心器件的红外线传感器结合C8051F500芯片作为载重测量装置的主体进行测距的方法,提高了测距的稳定性,在实际安装中,将测距装置安装在汽车车厢底部的悬架上,通过测量汽车车厢底部与车轴之间的距离来获得汽车的载重信息,可以在不改变汽车内部结构的前提下,准确、实时地进行测距。软件设计采用了模块化程序设计思想,给出了软件程序的流程图及部分重要程序。接着介绍了以GPS+北斗双定位和KS-97模块为主体的无线通信装置的设计与开发,简要介绍了基于拓扑网络结构的监控中心功能的实现。最后,对整个车联网监控系统进行了全面系统的调试,通过调试表明,系统能够稳定地测得车量载重数据,达到了预期目标,也为以后整个系统的优化打下了坚实的基础。
[Abstract]:China is a big transportation country. Nowadays, many transportation households are driven by economic interests and are seriously overloaded in transportation production. In addition to causing certain harm to the vehicle, the more important thing is that it will cause serious damage to the highway and lead to safety accidents. Therefore, the local governments in the car-borne metering management and real-time monitoring have increased efforts. In this paper, based on the science and technology project of Hebei Provincial Transportation Department, a vehicle network monitoring system based on ultrasonic and infrared ranging and GPS BeiDou dual positioning and wireless communication is put forward from measuring the shape variables of automobile leaf spring. The installation scheme of the ranging device is also given. This paper first introduces the mathematical model of auto self-loading measurement, and establishes the functional relationship between load and leaf spring deformation, which is used as the theoretical basis to develop the hardware and software of the self-loading measuring device. In the aspect of hardware design, the ultrasonic sensor combined with R8C / 2L chip is used as the ranging device for preliminary theoretical verification. After that, an infrared sensor with PSD as the core device and C8051F500 chip as the main part of the load measuring device is put forward, which improves the stability of ranging, and is installed in practice. The distance measuring device is installed on the suspension at the bottom of the car carriage, and the load information of the vehicle can be obtained by measuring the distance between the bottom of the car and the axle, which can accurately and realtime measure the distance without changing the internal structure of the vehicle. The software design adopts the idea of modular programming, and gives the flow chart and some important programs of the software program. Then the design and development of wireless communication device based on GPS Beidou dual positioning and KS-97 module are introduced, and the realization of the function of monitoring center based on topological network structure is briefly introduced. Finally, the whole system is debugged, which shows that the system can measure the load data stably, reach the expected goal, and lay a solid foundation for the optimization of the whole system in the future.
【学位授予单位】：东北大学
【学位级别】：硕士
【学位授予年份】：2014
【分类号】：U495;TP277

【相似文献】