Water gauge and water level detection method thereof

• Main Authors: LEI CHENG, WANG LIPING, LUO JUN, NING CHAOLIE, ZHANG WEI, XIE CHENGQIAN, LUO WENWEN, YING ZHONGLING
• Format: Patent
• Language: Chinese; English
• Published: 14.11.2023
• Subjects: CALCULATING; COMPUTING; COUNTING; IMAGE DATA PROCESSING OR GENERATION, IN GENERAL; PHYSICS

The invention relates to a water gauge and a water level detection method thereof, and belongs to the field of water level detection. The method comprises the following steps: obtaining an initial water gauge image through monitoring, shooting and cutting; when the water level needs to be detected, obtaining a real-time water gauge image as a to-be-detected water gauge image through monitoring shooting and cutting; graying and binarization processing is carried out on the to-be-detected water gauge image and the initial water gauge image, then corrosion, expansion, partial area region deletion and hole filling are carried out on the binary image, and a pixel region of the water gauge is obtained; and according to the converted proportion, calculating the pixel height difference of the rectangular frames of which the bottoms are not sealed, of the to-be-detected water gauge image and the initial water gauge image, and obtaining the actual water level height. The water gauge water level can be effectively detec