摘要：该系统设计了一套全数字式的直流电机控制器，把高性能的ARM处理器与先进的电流传感器IR2171相结合，通过与PC进行数据通信，实现直流电机的多节点远程控制，成功设计了全数字式直流电机控制系统。测试结果表明本系统具有结构简单、控制方便、抗干扰能力强、故障诊断和保护等优点，具有很好的实用价值。
关键词：数字式直流电机控制器；ARM处理器；多节点远程控制；故障诊断和保护

Abstract:  Designed a set of fully digital DC motor controller, not only combined the high-performance ARM processor and advanced current sensor IR2171, but also enabled data communication with a PC for achieving a multi-node remote DC motor control. The article successfully implemented the digital DC motor control system. The test results show that the system has a simple structure, and easy to control, has high anti-interference ability and fault diagnosis and protection, so the system is of great practical value.
Key words:  digital DC motor controller; ARM processor; multi-node remote control; fault diagnosis and protection