外加功率 meaning in English

applied power

The research contents of this paper includes as follows : firstly , design a new type reader based on ti s6700 reader ic and try to enhance the reading distance through adding power amplifier ; secondly , adopt the idea of gpio simulation to produce spi timings to drive s6700 . secondly , overcome the shortcoming of general mcu spi port ; thirdly , design the rs232 / rs485 full duplex conversion module , mmi interface in the system ; fourthly , analyze the rfid system communication protocol iso15693 and find out the working processes and realization of the instruction ; lastly , discuss the communication safety and accidental factors including the checkout and collision design , illustrate the realization of crc and anti - collision arithmetic theory
本论文的主要研究内容包括: (一)设计基于s6700阅读器芯片的新型阅读器,通过使用对中高频阅读器外加功率放大模块的方法,实现较远距离通信。 (二)采用单片机通用口三线模拟的方法模拟通用spi口时序,克服其不可位操作的缺点,实现对s6700的驱动。 (三)在rfid系统中集成设计了rs232 / rs485通讯模块、液晶显示模块等,着重说明了其软硬件实现方法。