Method and device for calculating swinging period of navigation mark

Abstract

The invention provides a method for calculating a swing period of a navigation mark. The method comprises the following steps: acquiring continuous angle values of the navigation mark in a plurality of acquisition periods; intercepting a data segment in the continuous angle value, judging the number of wave crests and wave troughs in the data segment, and when the number of the wave crests or the wave troughs is not less than 3, cutting off the first wave trough or wave crest and the last wave trough or wave crest of the data segment to generate an input data segment; and judging the number values of the wave crests and the wave troughs in the input data segment, and dividing the number value of the wave crests or the wave troughs with the smaller number value by the time period value of the input data segment to serve as the swinging period of the navigation mark. According to the method, the angle change values are continuously collected, the change values in a period of time are used as navigation mark swing period calculation data, and the swing period closest to the real swing period average value is obtained. The invention further provides a device for calculating the swing period of the navigation mark.

Description

technical field [0001] The present application requests protection of a navigation mark swing detection technology, in particular to a method for calculating the swing period of the navigation mark. The present application also relates to a device for calculating the sway period of the navigation mark. Background technique [0002] Navigation mark is the abbreviation of navigation aid mark, which indicates the direction of the channel, the boundary and the obstacle, including the river crossing mark, the coastal mark, the guide mark, the transition guide mark, the head and tail guide mark, the side mark, the left and right navigation marks, and the position indication mark , flood marks and bridge and culvert marks, etc. It is an artificial sign that helps guide the ship's navigation, locates and marks obstructions and expresses warnings. [0003] The working environment of the navigation mark is the water surface. Due to the existence of water ripples, the navigation mark...

AI Technical Summary

Problems solved by technology

However, the swing of the navigation mark cannot be completely offset, and the signal detection stability is still insufficient. In order to improve the detection stability of the navigation mark, it is necessary to know the swing period of the navigation mark, but there is no simple calculation method for the swing period of the navigation mark.

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