The Research Of Hydrlogic Wireless Telemetric Terminal Based On Msp430

The hydrologic telemetric equipment is an important component in automation research in the field of water conservancy. Limited to the environment , the traditional used hydrologic telemetric equipment are data transmitter and ultra-short wave transmitter-receiver. With the development of chip technology and mobile communication technology, study of new wireless telemetric terminal can be possible.This paper analysis the character of traditional hydrologic telemetric equipments, discusses using- embedded os on MSP430F149 and short message service in GSM network to implement wireless telemetric terminal. Firstly this paper introduces basic knowledge for application system on microcontroller, and then , studies and implements embedded os on MSP430F149 with round robin task schedule. The composition and the working principle of the terminal are described in detail. Besides thecorresponding circuit hardware theory scheme and software are provided. With this platform , this paper puts forward the protocol using SMS service in GSM network to implement wireless hydrologic data transmission . The terminal can conveniently interface to all kinds of water level sensors, rainfall sensors and velocity of flow sensors to make up a distributed wireless monitoring system of hydrology.Hydrologic telemetric with a core of multi-task on MSP430F149 fits hydrologic working environment with enhanced reliability. Wireless telemetric data transmission with GSM module is also a new application of mobile communication technology equipment.