基于CAN总线的城市轨道交通综合监控系统设计  

Design of urban rail transit integrated supervisory control system based on CAN bus

作　　者：黄周彬 HUANG Zhoubin(Tianjin University,Tianjin 300072,China)

机构地区：[1]天津大学,天津300072

出　　处：《现代电子技术》2023年第18期61-65,共5页Modern Electronics Technique

摘　　要：城市轨道交通监控涉及车内监控分站和人员跟踪分站等多个方面,其数据采集和处理的实时性、准确性会影响监控系统的运行性能。为提高监控系统CPU利用率和安全性,文中基于CAN总线技术设计一种城市轨道交通综合监控系统。基于CAN总线设置城市轨道交通综合监控框架,硬件部分选择DSP数字信号处理器实现多节点数字信号处理;采用dasRdb系统数据库,利用实时数据服务器的空间分配技术处理数据。软件设计方面,在IndasMake开发环境中分析IndasIBNS组态软件,分别设计城市轨道交通综合监控模块、系统权限与安全管理模块、网络监控功能模块、监控报警模块。为验证基于CAN总线的城市轨道交通综合监控系统的整体有效性,设计实验进行对比测试。实验结果表明,所设计系统延时保持在2 s以下,系统CPU利用率高于89%,系统安全性高于91.5%,说明该系统监测效果较好,安全性高。Urban rail transit monitoring involves many aspects,such as in vehicle monitoring substation and personnel tracking substation.The real-time and accuracy of data acquisition and processing can affect the operation performance of the supervisory control system.In order to improve the CPU utilization and safety of the supervisory control system,an urban rail transit integrated supervisory control system is designed based on CAN bus technology.The integrated supervisory control framework of urban rail transit is set based on CAN bus.In the hardware part,DSP digital signal processor is selected to realize multinode digital signal processing,and the space allocation technology of real-time data server in the dasRdb system database is used to process data.In the software design,the IndisIBNS configuration software in the IndisMake development environment is analyzed,and the urban rail transit integrated supervisory control module,system authority and safety management module,network supervisory control function module,and supervisory control alarm module is designed respectively.The overall effectiveness of the urban rail transit integrated supervisory control system based on CAN bus is verified,experiments were designed for comparative testing.The experimental results show that the designed system has a delay of less than 2 s,a CPU utilization rate of more than 89%and a system security of more than 91.5%,which verify that the supervisory control effect of the system is good and the security is high.

关 键 词：城市轨道交通监控系统 CAN总线 DSP数字信号处理器 dasRdb实时数据库 IndasIBNS组态软件 网络监控 CPU利用率 

分 类 号：TN945.23-34[电子电信—信号与信息处理]