Study On Wireless Sensor Networks In Marine Water Environment Monitoring System

Marine environmental monitoring is the basic means of the prevention of marine pollution, mastering of the marine environment and its changing low for human.The ability of monitoring the marine environment can directly influence the development of marine resources and marine environmental protection and results. This article applys the wireless sensor network technology in the marine water environment monitoring to real-time monitor, sense and collect all kinds of monitoring object information within the region the of marine information and transmit it to the users who need .First, the paper studies the theoretical basis of the wireless sensor network (Zigbee protocol), including the characteristics, composition, structure and protocol stack. Then, the article designs hardware structure for wireless sensor network, including microprocessor unit, Zigbee module, and power module to Constitute wireless sensor network in the system basing on Zigbee protocol. Write MCU C language Program to complete Interrelated software design of the system.Second,considering various factors of the site, the article researchs and realizes wireless transmission of kinds of marine data to monitoring center. This part uses GPRS(General Packet Radio Service)Which is a long-distance wireless communication technology to be responsible for data to upload the host computer and receive control commands. It allows users to send and receive data under end to end packet transmission mode.Then, it studys the positioning system architecture, positioning methods and positioning principle. On the basis of the study, GPS technology is used to achieve the sensor node positioning and GPRS module is used to achieve upload GPS location information and the location information is showed and Analyzed in host computer.Finally, the designed system is tested the article in the laboratory experiments, including the system's set up, debug, and host computer receives the information.