Online monitoring method for environment in transformer substation

The invention discloses an online monitoring method for an environment in a transformer substation. A transformer substation monitoring system, a ZigBee network element, a local monitoring center anda far-end server are built, the ZigBee network element comprises a ZigBee coordinator, a router node and a terminal node, by arranging subsystems such as a temperature monitoring subsystem, a humiditymonitoring subsystem, an SF6 gas monitoring subsystem, a cable channel monitoring subsystem and an intelligent access control subsystem, online monitoring is respectively performed on temperature, humidity, SF6 gas concentration and cable channel water level in the transformer substation, then a ZigBee technology is applied for transmitting the acquired data, the acquired data is analyzed by virtue of a local monitoring center, manual inspection is avoided, and a wireless network covers all the regions of the transformer substation by virtue of the ZigBee technology, so that monitoring on theenvironment in the transfo