油色谱在线监测系统数据接入物联管理平台方法

油色谱在线监测是目前广泛应用的一种监测手段。但是，由于当前油色谱在线监测系统感知层协议和物联模型尚未统一，数据交互困难，使得油色谱系统独立运行，无法与输变电侧其他子系统之间实现数据共享。针对这一问题，提出了一种智慧物联体系下的油色谱在线监测系统数据接入方法，实现系统的即插即用。首先分析智慧物联体系下油色谱系统数据接入物联管理平台的整体架构，阐明了系统数据的传输过程。接着构建基于国家电网公司公共信息模型(SG-CIM)统一规范的物联模型并提出了一种基于本地通信的油色谱系统采集终端与边缘物联代理的通信方式和基于消息队列遥测传输协议(MQTT)协议下的Ⅲ型边缘物联代理和物联管理平台的交互方式，使得系统数据传输过程中具有统一的物联模型和通信协议，从而使得油色谱在线监测系统数据接入到统一的物联管理平台。最后，以某省实际油色谱在线监测系统运行情况为例，将上传至物联管理平台的数据与油色谱在线监测系统中的原始数据做比对，验证了接入数据的及时性和完整性，从而验证了所提接入方法的可行性。该方法的提出对实现输变电侧主设备数据的共享与联动，提升对输变电侧主设备运行状态的感知能力具有重要参考意义。

Data access method for an oil chromatogram online monitoring system to an IoT management platform

Online monitoring of oil chromatography is a widely used means of monitoring. However, because the perception layer protocol and internet of things (IoT) model of the current oil chromatography online monitoring system have not yet been unified, difficult data interaction enables the oil chromatography system to operate independently. It also realizes data sharing with other subsystems on the power transmission and transformation side. A data access method for an oil chromatography online monitoring system is proposed to realize plug-and-play. First, the overall architecture of the oil chromatography system data access IoT management platform under the smart IoT framework is analyzed. Then the system data transmission process is clarified. Then, a unified IoT model based on a State Grid common information model (SG-CIM) is constructed. A communication mode is proposed between the oil chromatogram system acquisition terminal and the edge IoT agent. This is based on local communication and the interaction mode between type III edge IoT agent and IoT management platform based on message queuing telemetry transport (MQTT) protocol. Then the system has a unified IoT model and communication protocol in the process of data transmission. Thus, the data of the oil chromatography online monitoring system is connected to the unified IoT management platform. Finally, taking the actual operation of the oil chromatography online monitoring system in a province as an example, the data uploaded to the IoT management platform is compared with the original data in the oil chromatography online monitoring system. This is to verify the timeliness and integrity of the access data, so as to verify the feasibility of the proposed access method. The proposed method has important reference significance for realizing the data sharing and linkage of the main equipment at the power transmission and transformation side. It also can help improve the perception of the operational state of the main equipment at the power transmission and transformation side.This work is supported by the National Natural Science Foundation of China (No. 51807180).