Cooperative Routing Protocol Optimization In Wsan And Application Of This Research In Facility Fruits And Vegatables

The existing environment monitoring system for facility agriculture using wired communication technology, poor stability and low reliability, which greatly limits the promotion and application of the facilities agriculture. Wireless Sensor Networks(WSN) is a new network technique emerging in recent year, with low cost, high flexibility, high reliability, and thus apply the WSN in facilities agricultural can achieve automation,networking and controllable for facility agricluture application. With the development of WSN, the objective world simple perception has been unable to meet people’s needs, then people pay more attention on how efficiently and quickly the information obtained to make appropriate decisions. Constituted by introducing several actor nodes in the WSN, the Wireless Sensor and Actor Networks (WSAN), not only able to perceive the information of the objective world, and the actor nodes can also make quickly response to resolve emergencies in the network. Currently, we just have seen the great application value of the WSAN, so it is applied to the field of facility fruits and vegetables, and in order to achieve facility fruits and vegetables management automation, network and intelligent,thus carry on the deepth discussion and research for cooperative routing between many kinds of nodes in the application field of facility fruits and vegetables.In this paper, a collaborative routing protocol for the disadvantages of WSAN is applied to the field of facility fruits and vegetables.The protocol covers the coordination routing model of three layers. It’s major to solve the problems of coordination mechanism for many kinds of nodes. The collaboration mechanisms include the collaboration between sensor nodes, the collaboration between sensor nodes and acttor nodes and the collaboration between actor nodes.1. For the collaboration between sensor nodes in the WSN, the original Link-State Clustering Algorithm(LSCA) has been optimized,and research a new RSSI-based Dynamic Clustering Algorithm(BRCA),the algorithm imporved the cluster-head election of WSAN,and further reducing the overall energy consumption of the network. The algorithm is in fact combined the sensors and cluster-heads to form a star topology.2.For the collaboration between sensor nodes and actor nodes,this paper researchs an Angle Forwarding Routing Protocol based on event-driven,a the protocol by means of the angle informatino between the cluster-heads and actors to select the next hop cluster-head, to reduce the network delay and reduce the overall energy consumption of the whole network, to ensure that the cluster-head as soon as the incident was reported to the actors.3.For the collaboration between actor nodes,research an Redeployment Algorithm of Actors(RDAA) and the problem of task assignment of actors,an Real-time Tasks Assignment Algorithm based on Sealed First Price Auction(RTAA-SFPA) is proposed,making actors to achieve the optimized task allocation. The RDAA algorithm is mainly used for the redeployment of the actors. RTAA-SFPA algorithm for the events occurred in the event area will use the Contract Net Protocol based on Auction to take the occurred events as the tasks assigned to the collection of minimum performance values of the actors or actors to balance the network energy consumption.Finally,through simulated the above design scheme,and compared and analyzed the simulation results,the simulation results show that the collaborative routing protocol proposed in this paper can meet the application requirements of the facility fruits and vegetables.