Design And Research Of The Mountain Flood Warning System Based On Remote Monitoring

With the rapid development of modern network technology, communication technology, automatic control technology and sensor technology, remote monitoring and alarm technology has been widely used. In this paper, to realize the monitor and warning of mountain torrent disaster, a set of warning system based on remote monitoring is designed by theoretical and engineering practice method.A kind of design proposal of remote monitoring and alarm system of mountain torrent disaster are investigated. This proposal is the design of which is based on the modulation and the embedded system, and takes the ARM microcontroller as the core. The microcontroller is used to drive the multiplexer modules to achieve the sound and light, voice and SMS alarm at the same time when it monitors the environment exceptionally.A design of the scene sound and light alarm system of mountain torrent disaster is designed by employing the redundant design and anti-interference technology approaches. A microcontroller S3C2440processor is used. Through the rational extraction of fault alarm signal, the system release early warning information by means of communication and networking to achieve sound and light alarm. This system has the characteristics of a strong anti-interference ability and a high safety reliability. The software design based on Linux operating system is carried on in parallel with the hardware design completed.Based on embedded technology, a voice alarm system of software and hardware is designed. The hardware part is used stereo digital audio converter, and the voice output is used differential way to improve the anti-interference ability. The software part is designed by U-Boot transplant and the alarm command priority scheduling processing technology, and large voice libraries be loaded directly from the NAND Flash to the SDRAM. This design approach allows the interval of receiving the alarm command to issue alarm voice less than40ms. The voice alarm system can send out warning voice according to the local water rainfall situation and other dangerous situations. The system adapts to the mountain torrent early warning monitor circumstances, and the quality of warning voice is clear, without a gap staccato. At the same time the timeliness and accuracy of forewarning information issue will be improved.Finally, the SMS alarm system based on GSM network is designed. When the monitoring scene appears exceptionally, the system starts to promptly gives the unusual information and the current photography picture to the administrative personnel through the SMS, and the efficiency of monitoring and management be improved.