A Target Tracking System Based On Imaging Sensor Network With Wi-Fi

As the development of communication and network technology, wireless sensor network has become one of the hot points in current information field. Wireless sensor network can realize the communication between "human and objects", "object and object", and also expand people's capacity of access to information.Our project team has researched in wireless sensor network for many years. Based on these researches, this paper designs an imaging sensor network node which is based on Wi-Fi communication technology, and also sets up an imaging sensor network to track moving objects.First of all, the paper summarizes the research background of wireless sensor network, introduces and compares a variety of wireless communication technology, analyses the thinking and methods of current target tracking applications based on wireless sensor networks, and then combines with the convenience of the interaction between users and network based on Wi-Fi communication mechanism and the advantage of the imaging sensor to identify moving objects. This paper designs a target tracking system based on imaging sensor network with Wi-Fi, and then it describes the structure of the node, software and hardware conditions, and the working procession. Then we design and develop the Wi-Fi communication mechanism of wireless sensor networks to ensure that wireless sensor nodes can communicate and exchange information with wireless network's user. After that, the paper describes the implementation of the imaging sensor network node's work procession ,which include the information collection, image processing and object's coordinate transformation, and gives a detailed analysis and introduction about the implementation of target tracking between nodes.Then sent the actual coordinates information of the moving target to the server through Wi-Fi. The server then will complete displaying the target trajectory.Subsequently, the paper sets up the actual test circumstance and does experiment to test the moving target tracking system. From the result, we can see that this target tracking system can display the trajectory fleetly and effectively.