The Study Of Long Highway Tunnel Environment Monitoring System Based On ARM

Along with the unceasingly speeding up of the electronic technology development speed, the highway tunnel construction enters a brand-new stage, and many kinds of long highway tunnel environment monitoring system have been applied widely. But in view of the whole situation, our country's long highway tunnel environment monitoring system falls behind the western developed countries in the performance and network. Therefore this article has constructed a new kind of long highway tunnel environment monitoring system with the brand-new ARM micro controller technology, mature Ethernet technology as well as perfect database technology. The main research content of this paper is as follows:At first, the whole structure of long highway tunnel enviroment monitoring system is fully analyzed. The area controller with ARM embedded micro controller LPC2210 as its control core is designed. It includes micro controller core circuit, memory system circuit, data acquisition circuit and communication circuit.During the design of area controller software, the important modules of the embedded real-time operating systemμC/OS-Ⅱare analysed. Then the transplantation process ofμC/OS-Ⅱto area controller are thoroughly analyzed. Finally the area controller application program is composed of A/D transformation duty, serial port communication duty and Ethernet communication duty.The operation by ADO skill to tunnel environment information database in Visual C++ 6.0, the creation of tunnel environment information table in SQL Server 2000, the design of the class which can operate the table in Visual C++ 6.0 are introduced in detail. At last, the design and realization of data receiving and storing module, digital display module, curve display module and inquiry module are analysed.