Coke oven cover in-place detection method

The invention provides a coke oven cover in-place detection method, which comprises the following steps of: installing a plurality of groups of infrared thermal imagers around coal charging holes of a coal charging car, acquiring an infrared thermal image and a signal at a coal charging hole cover, transmitting the infrared thermal image and the signal to a control cabinet, carrying out image identification and operation to obtain temperature data, and sending the temperature data to the control cabinet; the detected temperature is compared with different state temperature ranges and combined with the coal car running state, the state of the furnace cover is intelligently recognized, a furnace cover in-place detection display screen is installed in an operation room of the coal charging car, and the state of the furnace cover is displayed in real time through indication of different colors of a signal lamp. According to the method, whether a coal charging hole cover is opened or not and whether the coal charg