Lianyungang 220kV Liangqiu Station is a green and smart substation of Subei Power Grid, located in Ganyu District, Lianyungang City. Langsongkeli has developed an online monitoring plan for SF6 gas status of Taikai and Pinggao GIS equipment based on the customer's smart station needs. It adopts a dual compensation structure remote transmission density relay with better seismic performance and higher stability. The equipment pressure status is uploaded to our company's independent SF6 intelligent monitoring platform through IEC61850 protocol, which can monitor gas pressure, density, and temperature changes in real time, providing operators with more convenient, intuitive, and effective judgment.