Helicopter airborne electric wire collision avoidance method and system

Abstract

The invention relates to a helicopter airborne electric wire collision avoidance method. The method comprises the following steps of acquiring current position information of a helicopter; searching an electric power control tower and cable data in an airborne database; through a sensor, detecting surrounding obstacle information; comparing the surrounding obstacle information with the electric power control tower and the cable data, and if the electric power control tower and the cable data of the corresponding position of the surrounding obstacle information exist in the airborne database, classifying surrounding obstacles as the electric power control tower and the cable and carrying out reinforcement-type visual presentation; and the electric power control tower and the cable data of the corresponding position do not exist in the airborne database, classifying as an unknown cable obstacle and carrying out cover-type visual presentation.

Description

technical field [0001] The invention relates to a helicopter line-collision warning, in particular to a helicopter on-board wire collision avoidance system. Background technique [0002] With the increasing application of helicopters in all walks of life in our country, the threat of helicopter collision to the safety of helicopters is becoming more and more prominent. The planning of cross-regional high-voltage transmission lines and urban circuits is changeable and complex, and tower traction cables often occupy a large area. The overhead position and thin shape of the cables are very low visibility for helicopter pilots. Once the helicopter blades or tail braces scratch the cables, it is very easy to cause serious accidents involving aircraft crashes and fatalities. [0003] In response to this problem, a variety of active / passive protection strategies have been developed to improve the safety of helicopters, including wire cutters, electromagnetic sensors, laser radars,...

AI Technical Summary

Problems solved by technology

For example, the design and installation position of the wire cutter can only prevent the helicopter from colliding with the line from the front and endanger flight safety, but it cannot prevent side collisions, and objectively, it will still damage the cables and cause property losses, which will not improve the helicopter pilot's confidence in operation; the electromagnetic sensor In principle, it cannot recognize the approach of non-electric cables, and it is not suitable for helicopter flight scenarios in industrialized / urbanized areas; lidar is expensive, has the highest power consumption of all strategies, and is susceptible to weather; and enhanced GPWS relies primarily on databases to prevent line collisions, and the reliability of this strategy can rapidly degrade if local planning changes or missions involve remote / dramatically variable areas (such as battlefields)

Therefore, there is currently no fully satisfactory method for warning of helicopter collisions

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