Power transmission line channel invasion target identification and alarm method

The invention relates to a power transmission line channel invasion target identification and alarm method, which is used for identifying invasion foreign matters in a power transmission line channel and giving an alarm, and comprises the following steps: 1, obtaining an image of the power transmission line channel by using a binocular measurement system; step 2, performing target identification on the image so as to identify a power transmission line and an invading foreign matter in the image; step 3, feature extraction and feature matching are carried out on the power transmission line and the invasion foreign matter in the image; 4, performing three-dimensional reconstruction on the power transmission line and the invading foreign matter based on feature extraction and feature matching results; and 5, calculating the distance between the invading foreign matter and the power transmission line based on a three-dimensional reconstruction result, judging whether the distance is smaller than a preset safety d