摘要
由于智能电动密集架控制系统多采用RS485方式控制,实时性差,总线利用率低,软件控制复杂。针对这种情况,提出基于CAN总线技术的智能电动密集架控制系统的设计。采用内嵌CAN控制器MSCAN的8位微控制器MC9S08DZ60作为主控MCU,搭配高性能CAN收发器TJA1040,组建CAN通信网络,提供高效数据传输通道。融合多种传感器件建立多重保护机制,并添加必要的失效保护,应对复杂现场环境。充分利用CAN协议降低软件设计复杂度,并配合良好的移动调度策略,提升操作速度。实验结果表明,该控制系统通信速率高、安全可靠,有效地打破了RS485导致的性能瓶颈,完全满足密集架控制对通信的实时性、可靠性和互操作性的要求。
Most of the intelligent electric serried shelf control system using RS485 mode control, so it is poor real-time, bus utilization is low, the software control is complex. Aiming at this situation, the design of the intelligent electric serried shelf control system based on CAN bus is proposed. 8-bit microcontroller MC9S08DZ60 with embedded CAN controller MSCAN is used as the master MCU, and the high-performance CAN transceiver TJA1040 is adopted to set up the CAN communication network to provide efficient data transmission channel. It integrates multiple sensor devices to establish multiple protection mechanisms, and add the necessary failure protection to deal with complex on-site environment. It makes full use of CAN protocol to reduce the software design complexity, and with a good mobile scheduling strategy to enhance the operation speed. The experimental results show that the control system has high communication speed, is safe and reliable, and effectively breaks the performance bottleneck caused by RS485, and fully satisfies the real-time, reliability and interoperability requirements of the serried shelf control.
出处
《计算机应用与软件》
2017年第4期260-264,共5页
Computer Applications and Software
基金
国家自然科学基金项目(61202028)
