Research Of RFID Network Planning Method And Data Acquisition Management System

As technology continues to develop, because of its long communication distance, high reading speed and rewritable large-capacity storage, RFID (Radio Frequency Identification) technology is gradually replacing the bar code and is widely used in every aspect of the production and our lives.Traditional RFID applications extensively use low or high frequency readers, such as access control and all-purpose card. Each read point usually has only one reader, so there is not a systematic method of device deployment. But with the development of RFID networks and applications, ultra-high frequency readers are gradually put into use, RFID applications are also gradually shifted to some areas such as warehousing management and logistics. Such applications usually require multiple readers to work together to completely cover a specific area. Therefore, it is very important to use an efficient method to guide the reader deployment. Meanwhile, large-scale applications typically contain hundreds of RFID readers, as different readers of different manufacturers usually require different ways of calling. How to properly manage the readers to improve their accuracy and timeliness of data acquisition and to work well with the application is an urgent need to solve.In response to these problems, this paper first analyzes the research status of RFID-related technology and determines the overall research direction. Then, proposes a virtual force based RFID network planning method for the environment of low mobility, gives a detailed analysis for the method, gets a clear definition of the problem, systematically describes the problems such as calculation of the number of readers, reader location random initialization method, how to determine whether the algorithm should exit, the calculation of the composite force, and how to move the reader based on the force. Then analyzes the efficiency of the algorithm, implements a demonstration system to test the algorithm and proves its effectiveness. After that, analyzes the data acquisition method which is the most important part of the RFID middleware, defines the process of data acquisition, the way of data acquisition and summary. Give a solution to the infinite repeat transmission problem which may be encountered during the acquisition of the data, and proposes a data transmission method for different transfer modes. Finally, based on the above study, develops a RFID data acquisition system that can manage RFID devices, collect RFID data quickly and accurately, and do some filtering on the data.