Research On Hydrological Monitoring System Based On Internet Of Things Technology

The climate, topography and geology of our country are very different. Affected by themonsoon climate, flood disasters occur frequently. In this context, the development ofhydrological monitoring technology is particularly important. But in the past, affacted by theconstraints of technology, hydrological monitoring can only used the manual recording modewhich is high-cost, low-real-time, low-accuracy. This method can't play its role for prevention offlood disaster, protection of water resources and so on. With the development of computertechnology, wireless communication technology, sensing technology and automatic controltechnology, hydrological monitoring become networked, intelligent and systematic. In thiscontext, the article proposes a new kind of design proposal which based on Zigbee technologyand GPRS technology.Zigbee technology is widely used in various fields because of its low-power, low-cost, shortdelay of data transmission, flexible networking modes and other advantages. It can meet the needof complex terrain's hydrological monitoring. The articler describes the characteristics, protocolstack structure and network topology structure of Zigbee technology detailedly. GPRS networkwhich have the advantages of high reliability, high transmission rate, Real-time online and widecovering scope can meet the need of data's long-distance transmission. The way of thecombination of Zigbee technology and GPRS technology which been used in hydrological data'scollectoin and long distance transmission realizes the complementary advantages, saves thedevelopment cost.Hydrological monitoring system in this article mainly consist of three parts, thehydrological data collection, coordination control portion and the remote control center. Themain controller of hydrological data collection selects the CC2430chip which is highperformance and low power consumption. In this article, it mainly contains water leveldata,temperature data and rainfall data collection, the system will collect hydrological data andsend to the coordinator node by wireless transmission. In the coordination control portion, weselect the ultra-low power MSP430F149chip as the main controller, and realize wirelesstransceiver of datas by CC2430. Final, data will be sent to the personal computer of the remotecontrol center and shown to management by GPRS module GTM900B, then management makethe appropriate instructions. The system use solar batter as power supply creatively because ofhydrology monitoring system's characteristics, and design the circuit of power supply part. Inorder to save the development cycle, we use the module design concept in the software part, andgive flow char of each part specifically. Finally, we make specific test about the communicationfunction of the level sensor, rain sensor, temperature sensor, and the CC2430chip. The result show that it can acquire its anticipated goal, and achieve the requirements of real-time?reliability and networked.The hydrological monitoring system's structure which based on the internet of thingstechnology is simple in this article, and it'is convenient to install and maintain. So it's suitablefor the work of hydrological monitoring in remote areas. Also it can solve the defects andshortcomings of hydrological monitoring system in the past, and it realized the long distancetransmission and monitoring of the hydrological data. The hydrological monitoring systemprobides a theoretical basis for beginning the work of the department of water resources.