Substation equipment image collection method based on focusing and exposure servo of specified area

Abstract

The invention discloses a substation equipment image collection method based on focusing and exposure servo of a specified area. The method comprises the following steps: collecting a clear image of substation equipment and storing the clear image as template data; when a substation polling robot executes a polling task and removes to a preset position, collecting a polling image of concerned equipment by a camera; registering the template image and the polling image collected onsite by using a feature matching algorithm to find a concerned equipment area in the center of the polling image; and calculating clarity values of the equipment area in the polling image and the template image, comparing a ratio of the two clarity values with a set threshold, if the ratio is smaller than the threshold, deeming that the equipment area in the polling image is not clear enough, and if the ratio is greater than the threshold, deeming that the equipment area in the polling image is clear enough. According to the substation equipment image collection method disclosed by the invention, a specified area focusing servo function is adopted on the image area where the equipment is located, so that a camera focusing position can be guaranteed to locate on the equipment, and a clear image of the equipment is collected so as to ensure the accuracy of reading or state identification of the equipment.

Description

technical field [0001] The invention relates to the field of image acquisition of substation inspection robot equipment, in particular to an image acquisition method of substation equipment based on specified area focus and exposure servo. Background technique [0002] To accurately identify the working status of substation equipment, the inspection robot needs to collect clear images of the equipment during the inspection process. At the substation site, the camera uses the automatic focus mode to capture equipment images, which may not be able to focus on the target equipment, resulting in blurred equipment areas in the image; when the automatic exposure mode is used, due to lighting changes, backlight, shadows, etc., the image area where the equipment is located may be too bright Or too dark, the device details in the image are not presented well, which affects the recognition of the device status. [0003] In the current related patents, the Chinese No. 201010555348.9 u...

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Problems solved by technology

[0008] In order to solve the deficiencies in the prior art, the present invention discloses an image acquisition method for substation equipment based on designated area focus and exposure servo. The purpose of the invention is to solve the problem of image clarity of substation equipment collected by substation inspection robots

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