Method and device for judging tampering of sensor data of intelligent substation and storage medium

The invention provides a method and device for judging tampering of sensor data of an intelligent substation and a storage medium, and the method comprises the following steps: step 1, extracting the features of a sensor data application layer message according to the feature specification of the sensor data transmitted through an MMS protocol; and step 2, judging whether the sensor data is tampered or not by utilizing the extracted characteristics of the sensor data application layer message. According to the method, the MMS protocol for transmitting the sensor data of the intelligent substation is deeply analyzed, the characteristics of the sensor data application layer message when the MMS protocol transmits the sensor data are extracted, whether the transmitter data are tampered or not can be judged in time, therefore it is guaranteed that the sensor data of the intelligent substation are correctly received by a host, and correct operation of the intelligent substation is ensured. 本发明提供一种智能变电站的传感器数据被篡改的判断