The invention relates to the technical field of channel monitoring, and discloses a monitoring and early warning method and system for channel crossing of a power transmission line, and the method comprises the steps: determining an elevation positioning coordinate of a conductor sag lowest point of the power transmission line through employing a dynamic relative positioning algorithm; and the height between the lowest point of the conductor sag of the power transmission line and the water surface is calculated as a ship navigation net height limit value, so that the navigation real-time net height is accurately calculated, the ship in the monitoring image is identified, and a laser reflection signal reflected by a pre-emitted laser beam and the signal strength thereof are obtained through a laser emitting and receiving module, so that the ship navigation real-time net height is accurately calculated. According to the signal intensity of the laser reflection signal, whether the ship is a suspected superelevation ship is determined, and the height information of the suspected superelevation ship is compared with a ship navigation net height limit value, so that whether the suspected superelevation ship is a superelevation ship is determined, and superelevation warning is performed on the superelevation ship. Therefore, the early warning accuracy and early warning efficiency of the navigable ship are improved.
本发明涉及航道监测技术领域,公开了一种输电线路跨越航道监测预警方法及系统,其方法通过利用动态相对定位算法确定输电线路的导线弧垂最低点的高程定位坐标,并计算输电线路的导线弧垂最低点与水面的高度作为船只通航净高限值,从而精确计算通航实时净高,通过识别监测图像中的船只,通过激光发射接收模块获取预先发射的激光光束反射回的激光反射信号以及其信号强度,根据激光反射信号的信号强度确定船只是否为疑似超高船只,并对疑似超高船只的高度信息与船只通航净高限值进行比较,从而确定疑似超高船只是否为超高船只,并对超高船只进行超高告警,从而提高通航船只预警的准确性和预警效率。
Transmission line crossing channel monitoring and early warning method and system
一种输电线路跨越航道监测预警方法及系统
2023-12-22
Patent
Electronic Resource
Chinese
IPC: | G08G Anlagen zur Steuerung, Regelung oder Überwachung des Verkehrs , TRAFFIC CONTROL SYSTEMS |
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