基于RFID的简易资产清点系统设计与实现

The Design and Implementation of Simple Asset Inventory System Based on RFID

文章对基于无线射频识别(Radio Frequency Identification,RFID)的简易资产清点系统设计过程进行介绍,包括硬件设计部分、软件设计部分以及调试部分。上位机采用微软公司的Microsoft Visual C++6.0平台设计实现,主要是实现简单的资产管理和与下位机通信进行发送和接收数据。下位机采用意法半导体公司的STM32系列单片机作为控制单元。STM32系列芯片采用Cortex M3架构的内核,包含众多外设,在文中其主要功能是与上位机进行通信。单片机根据上位机发送来的数据和按键状态控制RFID读卡器工作和有机发光二极管(Organic Light Emitting Display,OLED)显示。RFID读卡器采用MFRC522读卡器。MFRC522的有效读写距离是10cm,可以通过I2C、SPI或者UART与单片机进行通信。

This article describes in detail the process of designing a simple asset inventory system based on radio frequency identification（RFID）,including hardware design part,software design part and debugging part.The upper computer of the project is designed and implemented by Microsofts Microsoft Visual C＋＋6.0 platform,which mainly implements simple asset management and communicates with the lower machine to send and receive data.The lower machine adopts STM32 series single chip of STMicroelectronics as the control unit,the kernel of which is Cortex M3 and contains many peripherals,and the main function is to communicate with the upper computer in this paper.According to the data sent by the upper computer and status of the key,single chip controls RFID card to work,and Organic Light Emitting Display（OLED）to display.MFRC522 card is used as RFID reader.The effective reading and writing distance of the MFRC522 is 10 cm,and it can communicate with single chip through I2 C,SPI,or UART.