基于CAN总线的嵌入式网络化智能传感器系统设计

Design of an embedded network smart sensor system based on CAN bus

针对现有传感器体积大、功耗大、性价比低等不足,以片内ROM整合CANopen驱动器的LPC11C24低功耗微处理器和基于QT设计的上位机为核心,采用CAN总线技术,设计了体积小、功耗低的嵌入式网络化智能传感器系统。传感器系统的主控芯片LPC11C24以CANopen标准为基础提供多种API接口,可将LPC11C24快速整合至嵌入式网络应用中。在基于QT设计的上位机界面上可方便地完成CAN总线网络上多点传感器的管理与配置。测试结果表明,传感器系统实现了体积小、功耗低、性价比高、功能强和便于扩展的设计目标,加快了智能传感器的开发与应用。

Aiming at the demerit of current intelligent sensor network with large size, high power and low quality, an embed ded network smart sensor system with the upper computer in the on chip ROM integration CANopen LPCllC24 low power microprocessor of the drive and QT is designed with the characteristic of small size, low power. The sensor network with CANopen standard based offers multiple API interface and integrates LPCllC24 into the embedded network application. Based on the QT design PC interface can complete the CAN bus network management and configuration of multiple point sensor. The testing results show that the sensor network accomplishes the design goal of small size, low power, cost-effec tive principle, expandability and speeds up the development and application of intelligent sensor.