Study On Water Level Automatic Measurement And Long-distance Control System Based On GSM

With the development of high and new technology, especially the information technique and digitization technology, it is possible to supervise control and manage agricultural water resources to promote the development from conventional irrigation management pattern to automatic management pattern.The construction of this system will make the management of agricultural water resources great change.There are always lots of scattered stations to be measured during the process of penstock level measurement. In the traditional penstock level measurement and transmission system, data of water level is measured by hand, which usually take more time and are easily influenced by human factor. In order to supply accurate and timely water level information, this paper brings forward a project based on ADAM-5510M and GSM network that can realize long-distance automatic observe and control of water level information. In this paper, the construction and work principle of system are shown in the paper, and concrete method of realizing the telecommunication by GSM is discussed in detail. The structure of the system and the choice of strobe-level sensor are discussed in the thesis .The design of hardware and software of single-chip microcomputer system is introduced, along with the way of using a single-chip microcomputer to control a modem in detail.Our focus is to introduce the way to control sluice gate by ADAM-5510M, and realize the automatic control to sluice gate by fuzzy PID control technology, according to the real-time change of water level information. Fuzzy PID strategy is applied in the gate control.At present, this technology has been applied to the penstock level supervision and measurement system. and the automatic collection, storage, telecommunication and real time demand of penstock level information have been realized successfully. The gate can also be controlled automatically according to the water information. It is improved that the system are great on robustness and stability, and its control effect is up to much.