Oil and gas pipeline intrusion alarm device and method based on passive infrared thermal imaging

The invention provides an oil and gas pipeline intrusion alarm device and method based on passive infrared thermal imaging, and relates to the technical field of oil and gas pipeline safety detection. A passive infrared thermal imaging camera is used for monitoring infrared radiation generated by a to-be-recognized invading object in an oil and gas pipeline to obtain a radiation signal so as to obtain a video image, the to-be-recognized invading object in the video image is recognized through a deep convolutional neural network, invading object information is obtained, the invading object is monitored through an infrared signal, and the invading object recognition accuracy is improved. The distance between the position of the invading object and the monitoring point is obtained, the current relative distance between the invading object and the pipeline is calculated through the preset pipeline coordinates and the distance, the result is sent to the designated terminal for invading warning, the recognition rat