Research On Networking Scheme Of Enhanced Marine Monitoring Internet Of Things

Our mainland has vast sea areas that contain abundant energy and resources. As thedecreasing of land resources, the importance of marine resources in people’s life isgetting more obvious. However, with the deepening of human exploration of marine anduncontrolled discharge of garbage, leading to a variety of marine pollution problemsgetting severe, such as marine disasters, marine eco-systems. To strengthen marineenvironmental protection is imperative. July2013, Xi Jinping at the eighth CPC CentralCommittee Politburo collective study emphasized that further care oceans,understanding the ocean, manage and plan the ocean, and promote the construction ofmarine power[1]. How to make the development and utilization of marine resourcesmore reasonable and effective is a big problem, and it is related to the development ofmarine economy and China’s sustainable economic development.A good cognition to the marine environment is the best way to realize theprotection of the marine environment and the development of marine resources, andmarine monitoring is the most important means to obtain ocean cognition. Therefore,better research and develop marine environmental monitoring technology can promotemarine environmental management, disaster prevention and mitigation, resourceconservation, marine military, marine operations and other activities, and provide bettertechnical support and information platform for them. Since1991the concept Internet ofThings was first proposed by the Massachusetts Institute of Technology, it becomes anew generation of information technology, known as the Third Wave of the world’sinformation industry development after the computer and the Internet. To apply Internetof Things technology to the field of marine environment and realize enhanced marinemonitoring network is the desired trend. ZigBee protocol is jointly formulated byIEEE802.15.4working group and ZigBee Alliance, one of the key technologies ofInternet of things. This kind of wireless communication technology with the characteristics of low power consumption, low cost, low complexity, low speed, highreliability just to meet wireless sensors for low cost, low power, high fault tolerancerequirements, and becomes solid choice for wireless sensor networks, additionally, itcan be embedded into electronic devices, supports geo-location, especially suitable forthe field of marine environmental monitoring.Ocean monitoring system is the integration of monitoring center, satellite,monitoring tools such as ocean buoys, monitoring boat and so on. The system cancollect the ocean parameters such as temperature and humidity, salinity, depth, currents,chlorophyll, turbidity and other parameters by the means of various sensors, buoys andother wireless monitoring node that deployed in the actual sea area. Since wirelessmonitoring nodes are generally powered by lithium battery, and deployment in harshocean environment. Even large buoys use a combination of battery and solar powersupply, when battery charge and discharge cycles reach a certain value, its capacity willbe smaller. And when it reduced to80%of the initial value, it almost does not work.Once the battery runs out of energy or no longer work, it costs too much to charge thebattery or replace a new battery, and it’s complicated to operate. Therefore, in themarine environment monitoring system, we must ensure the reliability and stability ofthe entire system. By the means of energy saving strategies can effectively extend thelife of the network. Design and optimize routing protocol can make wirelesscommunication more efficiency, reduce network energy consumption. Data fusion,purpose of which is to remove redundant, leaving only the useful information, caneffectively reduce the network load. We must take both the communication costs anddata integration costs into consideration and balance them two, can only reduce totalenergy consumption of the network. Topology control can guarantee the quality of thenetwork connectivity and coverage, increase the efficiency of routing protocols, takingnetwork simplicity, reliability, scalability, performance, etc. into account Dormancymechanism that allows the sensor nodes periodically work and sleep an importantmeans of node energy management.This paper focused on wireless sensor network networking technology in themarine environment monitoring system. The article, by means of NS2simulationplatform, established ZigBee node model, analyzed the ZBR algorithm and networkingflow, simulated the networking process of the network by animation. And it explored and summarized the rule by simulation experiments that the time required to completethe establishment of a network that different topologies with different time interval toactivate each node. At last, with the combination of hardware and software design, itcompleted a small wireless sensor networks experiment of which the results proved thatthe rule summarized is scientific. In practical applications, we can deploy the nodes as amultiple-star topology, set up the time to activate different nodes in sequence. And thisway can effectively reduce the beacon collision in networking process, lower the timespent to build the network, thus reducing network consumption and extending thenetwork lifetime.