The Design Of Embedded Tunnel Monitoring System Based On Sensor Network

Tunnel has become an indispensable part of road traffic. Because the tunnel has relatively closed environment, special structure and the unexpected incidents in a tunnel is difficult to deal with. It's therefore monitoring system has also been an important traffic safety research, and tunnel monitoring system in the choice of controller performance is directly related to the merits. The topic aims to build a highway tunnel monitoring system by studying all the aspects of a tunnel, to sensor networks for environmental data acquisition unit, a regional controller for the control of the basis for the field bus communication protocol, to build a tunnel-based sensor network embedded control system. The main contents of this article include regional controller hardware design, embedded real-time operating system on the platform migration, tunnel subsystem control algorithm and PC management system interface design.The system is divided into data acquisition layers, regional controller and PC management system. Regional controller includes power supply module, clock module, memory module and communication modules. On this platform the embedded real-time OS,μC/OS-Ⅱis migrated, and through reasonable task design. PC management system using VC++ 6.0 MFC programming integrated development, to achieve a good man-machine interface and meet the basic needs of tunnel monitoring system.