Research On The Integrated Intelligent Taxi Service System Based On WSN In The Internet Of Things

In view of the current urban taxi industry in general trafic congestion,vehicle information can not timely and effectively delivery and parking problems,combined with the continuous development technology of WSN in the Internet of things,this paper studies the intelligent service system for taxi based WSN.In the practical application environment,we deploy a large number of vehicle wireless communication nodes and roadside wireless communication nodes,realize the taxi driving in traffic information upload and taxi vehicles in the parking of the fast and accurate positioning by the roadside and vehicular nodes of short distance wireless communication,forming a complete taxi intelligent application service system,providing richer,more accurate,more human nature of public information service,and have important significance to improve the traffic environment.First of all,this paper makes a general overview of the three angles of the taxi service system,the underlying platform,the indoor positioning model,and the business logic.The hardware physical layer of the service system is formed by the ZigBee wireless network system infrastructure.In order to facilitate the understanding of the data of the machine,the communication protocol between the devices is established,which forms the communication protocol layer of the service system.Through the research of domestic and international indoor location algorithm research status,for now indoor positioning system positioning,because of the large size of the application of regions in the scene as a result of the fuzzy,reference point as a result of acquisition data and matching calculation amount increase,this paper puts forward the FCM clustering based on sub block and local discriminant embedding FCM-LDE indoor positioning algorithm constitutes a localization algorithm based on system service layer,improve the test system of the positioning precision and system stability were.According to the actual taxi business scope such as basic response task data transmission,depending on signal strength value positioning,taxi driver license information upload,the equipment of each communication services and software architecture design and process was described in detail,constitute the service system of the business logic layer.Finally,the corresponding test is carried out on the communication link,the business data and the positioning information,and the reliability and practicability of the system are proved.