The Design Of Monitoring System Based On GPS And GPRS

Landslide is a major geological disaster, it is a slip which due to decline in the slope of rock and soil along the slope. In recent years, due to geological disasters occur frequently, industrial and agricultural production and people's lives and property have causing enormous damage and loss. Therefore, early warning system for landslide monitoring is an important technical means to reduce such disasters which has a very important value in the national economy. Currently, the main method for landslide monitoring pile method, including simple observation, simple observation of surface deformation, buildings tilt observation and so on. With the rapid development of technology, how the introduction of new technology and methods to landslide displacement monitoring becomes more effective, safer, real-time, which has become a new research focus. Therefore, the paper presentsa landslide monitoring system based on GPS and GPRS, forlarge-scale real-time monitoring of landslide, the global positioning systemcombined with the General Packet Radio Service, this method improves the accuracy of monitoring and implementation of automated data collection.By understanding the background and development of landslide monitoring process, the proposed design and working principle based on GPS and GPRS.The main work of this paper are:(1) Sub-system for landslide monitoring:The first is the occurrence of displacement with GPS testing,which uses a multi-point relative positioning of the way to enhance the positioning accuracy. Then, data is transmitted to the main control system through the MCU which is from the GPS receiver, the data is processed.(2) Data transfer subsystems:the data transmission is divided into two kinds of wiredand wirelessways,Wired hasthe following disadvantages:routing complex,prone to lightning strikes,installation and maintenance costs are high,vunlnerable to damage.Therefore,this subject presents the landslide monitoring system based on GPRS network and the wireless transmission module SIM300C,basically solved the network and the wireless transmission module SIM300C,basically solved the problem of data transmission.Then the main control system hardware and software as a key part of the design in detail.Hardware including:selection of a host microcontroller STM32F103 chip, power supply design, SIM300C module design, interface design; Software including:the use of TCP/IP protocol stack Data transmission, SIM300C connection with the host computer and computer for data processing and monitoring. Master control system to achieve an effective connection of each module, which make up the system to achieve the overall program.The system uses a modular design concept, which are relatively independent of each hardware to run, so more convenient for system assembly, testing,which can effectively shorten the actual development cycle; After testing, the system can run smoothly.Finally, summarized the work on the text and the prospect for future work;Provided hardware design schematics of the system in the appendix. The main content of this paper is the monitoring terminal design in the wild, the emphasis on landslide monitoring system MCU control and wireless data transmission.