Study On Full-view Of Strong Barrier Coverage In WMSN

With the development of modern science and technology,wireless multimedia sensor networks are attracting more and more attention because of its ability to collect many kinds of information such as image,video,sound and so on.It is widely used in many fields.Coverage is an important measure of the network can provide quality of service,and one of the hot issues of WMSN.The purpose is to eliminate disadvantages of random distribution by rationally and effectively adjust distribution scheme of sensor nodes.The network energy is saved and lifetime is extended while achieving coverage standard proposed in coverage area.Because of WMSN is different from the traditional wireless sensor network,it is often used to area with high coverage quality.It is hoped that the WMSN can realize effective and multi-directional acquisition of targets information in monitored area.Relying on above-mentioned background,the concept of strong barrier coverage and full-view coverage has been proposed.Its appearance to provide a better solution in coverage and the quality of information collected respectively.However,the present achievements of research can not combinethe advantages of two methods,resulting in the decline of effective information or can not meet coverage requirements.It makes the improvement of network Qo S has been limited.In this paper,we study the construction algorithm of the full-view strong barrier coverage model in WMSN,and propose the energy-saving scheme of the network in working process.Multi-objective Territorial Predator Scent Marking Algorithm can solve the sensor node distribution scheme of satisfying multiple target requirements in coverage area,and taking into account the balance between coverage and energy consumption.It mainly for area coverage,but the algorithm is complex,does not apply to the deployment of strong barrier coverage in narrow band area.This paper is inspired by the stage of its mark range.According to the divide and conquer strategy,the coverage area is divided into several grids.It can makes the model simple,which is simplifies the implementation of the algorithm and optimized for the strong barrier coverage model.The coverage of full-view and strong barrier coverage in the area is ensured,and the effectiveness of the target information acquisition is improved.In process of constructing model,simulating the principle of computer caching mechanism,search for the most appropriate sensor nodes move to model target locations.It can improve search hit rate,this process is simplified,and efficiency of the algorithm is improved.Considering the energy consumption of network in working process,a wake-up mechanism is put forward.It is composed of heterogeneous nodes and infrared sensor is used to assist video sensor,to achieve the area coverage.Inworking,according to targets into the coverage area,video sensor triggered by the infrared sensor,dynamic scheduling of video sensor to collect information.In this way,network energy can be saved and extended lifetime.Simulation results show that the above algorithm can effectively improve coverage quality of the area and save energy of sensor network model in construction and working phase.