Monitoring and early warning system and method for height difference of front and rear fulcrums of girder of bridge erecting machine and girder deformation based on image recognition

• Main Authors: ZHAO NALE, LIU WEI, LI CHUNYANG, LI XIN, LI JIAHUI, WU KEMAN, YANG HONGQING, SONG MINGZHU, CHEN LEI, JIAO CHENGWU, LI WEI, HAO SIYUAN, TANG XUNING, SUN MING, LIU RUICHE
• Format: Patent
• Language: Chinese; English
• Published: 01.09.2023
• Subjects: ALARM SYSTEMS; CALCULATING; COMPUTING; COUNTING; MEASURING; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS; MEASURING LENGTH, THICKNESS OR SIMILAR LINEARDIMENSIONS; ORDER TELEGRAPHS; PHYSICS; SIGNALLING; SIGNALLING OR CALLING SYSTEMS; TESTING

The invention provides a monitoring and early warning system and method for the height difference of front and rear supporting points of a girder of a bridge girder erection machine and girder deformation based on image recognition. The monitoring and early warning system comprises a target, an image acquisition module, an input module, a target detection module, an image segmentation module, a distortion correction module, a calculation module for the height difference of the front and rear supporting points of the girder of the bridge girder erection machine and the girder deformation and an early warning module. The system is based on a bridge girder erection machine monitoring and early warning technology of a computer vision technology, can utilize existing video monitoring equipment of the bridge girder erection machine to monitor indexes which influence the stability of the bridge girder erection machine in the bridge girder erection process, such as height difference of front and rear supporting point