公路环境自动监测系统设计.doc

摘 要 随着我国高速公路的迅速发展，及时、有效的对高速公路的环境参数的监测是很有必要的，它不但可以减少交通事故的发生，从而给人们的出行安全带来很大方便。而且同时也能有效的为高速公路维护工作提供便利。 高速公路环境参数自动监测系统的设计是通过对气温、湿度、风向、风速、路面结冰状况等气象要素的采集为工作的基础。本设计讨论了GPRS的无线通讯的高速公路环境参数自动监测系统的设计，并实现了气象采集的自动化和网络化。分析各气象要素传感器的接口、参数、性能、可靠性等关键问题，确定了HMP45D型号的湿度传感器、PT100温度传感器、IRS21智能路面状况传感器、HW-N1 型能见度仪、ZQZ—TF 风向风速传感器、确定了H7000无线DDN系统为用户提供高速、永远在线、透明数据传输的虚拟专用数据通信网络Abstract With the rapid development of highway, timely and effective environmental parameters on the highway monitoring is necessary, it can not only reduce traffic accidents, giving people travel security bring great convenience. But also can effectively facilitate the work for the highway maintenance. Automatic monitoring of environmental parameters highway system design is through the air temperature, humidity, wind direction, wind speed, icy conditions and other meteorological elements collected for the basis of the work. This design discussed GPRS wireless communication highway environmental parameters automatic monitoring system design and realization of meteorological acquisition automation and networking. Analysis of the meteorological sensor interfaces, parameters, performance, reliability, and other key issues, identified HMP45D type humidity sensor, PT100 temperature sensor, IRS21 intelligent road condition sensors, HW-N1 type visibility meter, ZQZ-TF wind direction and speed sensor, identified H7000 wireless DDN system provides users with high-speed, always online, transparent data transmission virtual private data communications network design. Because the highway environmental parameters automatic monitoring system because of its own geographical limitations, so the best use of the wireless communication means of communication. With the development of computer network technology, GPRS data services in addition to high-speed, always-on features, but also have the advantage of low-cost communications. So it has been widely used. Keywords: GPRS wireless communication; automatic monitoring system; sensor目 录 第1