Research And Design Of Handheld Reader And Warehouse Management Based On RFID Technology

Radio frequency identification(RFID)technology is one of the key technologies of Internet of Things.It uses radio signals to transmit information,has the advantages of non-contact,better security and multi-target rapid identification.The RFID technology can be applied to the warehouse management,which can effectively solve the cumbersome entry of documents,improve the efficiency of cargo delivery,easy identification of defacement and other issues in the traditional warehouse management,to achieve automatic data collection function,reduce the workload,simplify warehouse management process,improving Management efficiency.After analyzing the actual management process of the warehouse,the warehouse management system based on RFID technology is designed,and the technology of the Internet of Things is applied to the logistics warehousing process.The whole logistics management system structure is divided into the perception layer,network layer and application layer.Perceptual layer includes fixed reader and handheld reader,fixed reader is responsible for managing goods access,handheld reader is responsible for collecting cargo information and inventory.The network layer uses the TCP protocol to construct the local area network,so that the RFID reader can communicate with the warehouse management software.The work of application layer is design the management software,to automated management of warehouses.The main work are as follows:Design a handheld reader,the hardware of reader includes the core control chip module,RFID module,LCD display module,WiFi module,power module,etc.The software adopts uC/OS-II real-time operating system,based on the reader function,design RFID tasks,WiFi settings tasks,communication tasks and liquid crystal display tasks.Design a TCP asynchronous server by C#language on the network layer,so that readers and warehouse management software can establish a connection,and transmist data information.In the application layer,Microsoft Visual Studio 2012 software is used to design the warehouse management software,which is responsible for managing the goods access and querying the inventory.The SQL Server database and LINQ to SQL technology are used to build the database,which include cargo type information,production company information,inventory information and company information.