蓄电池管理系统接入边缘物联代理Modbus-tcp协议设计与实现

Design and implementation of Battery Manage System Access to Iot edge Device Modbus-tcp Protocol

变电站为保障通信和控制的畅通,装备了大量的备用蓄电池和配套的电池管理系统。边缘物联代理设备是泛在电力物联网感知层的网络连接设备,实现采集终端与物联管理平台之间的互联、边缘计算及区域自治等功能。由于电池管理系统不具备边缘计算功能,所以,将电池管理系统接入边缘物联代理,遇到紧急情况,可利用边缘物联代理设备的强大边缘计算能力实现对电池故障的紧急处理和响应。各个厂家的电池管理系统上传数据接口不统一,协议不一致,导致电池管理系统难以互通和普及推广。针对这个问题,设计了一套简化的Modbus-tcp协议帧结构,实现电池管理系统与边缘物联代理间的数据传输,具有高可靠,大容量接入,高速传输,容易实现的优点,可作为变电站电池管理系统接入的边缘物联代理的标准参考。

Large numbers battery packs were equipped in transformer substation in order to ensure its communications and control channel smooth flow.Iot edge agent is a key interconnect device in perception layer of Ubiquitous power Internet of things.implementation the inter-connect function between iot platform and acquisition terminals.connect edge computing and regional autonomy devices.Owing to there is not edge computing function in battery manage system.when battery manage system is accessed to Iot edge agent devices,Iot edge agent device could utilize its strong edge computing ability to process the battery pack emergency faults.Different battery manage system manufacturer provided different products with all kind interfaces and protocols,so the interworking problem is the block to battery manage system popularizer in transformer substations.To solved this problem,designed a simplified modbus-tcp frame structure between battery manage system and Iot edge agent device,its advantage is:high reliability、high data-rate、large size access、easy,and it can be a good reference to Iot edge agent.