Method for overlapping real-time data streams on three-dimensional electronic navigation channel chart

Abstract

The invention discloses a method for overlapping real-time data streams on a three-dimensional electronic navigation channel chart. The method for overlapping the real-time data streams on the three-dimensional electronic navigation channel chart comprises an acquisition part, a square-wave converting circuit, an output interface circuit, an input interface circuit and a phase difference comparison circuit, wherein the acquisition part is used for acquiring sinusoidal voltage signals of an external power grid in a railway power supply network; the square-wave converting circuit is used for converting the sinusoidal voltage signals obtained by the acquisition part into square-wave voltage signals; the output interface circuit is used in a method of outputting the square-wave voltage signalsto overlap real-time data streams on the three-dimensional electronic navigation channel chart; the input interface circuit is used for inputting the square-wave voltage signals given by the method for overlapping the real-time data streams on the three-dimensional electronic navigation channel chart; and the phase difference comparison circuit which is used for acquiring the square-wave voltagesignals sent by the square-wave converting circuit, the square-wave voltage signals sent by the input interface circuit, and a rising edge duty ratio of the square-wave voltage signals of the local side power grid and the square-wave voltage signals of the opposite side power grid, and a phase difference between the square-wave voltage signals of the local side power grid and the square-wave voltage signals of the side power grid is obtained according to the rising edge duty ratio.

Description

technical field [0001] The invention relates to electronic waterway chart technology, and mainly relates to a method for superimposing real-time data flow on a three-dimensional electronic waterway chart. Background technique [0002] The traditional waterway map is isolated from terminal equipment data information such as navigation marks, fog conditions, water level and flow, and often only two-dimensional waterway maps can be seen. For waterway management and waterway governance departments, the information is not intuitive, fragmented, lagging, and cannot be effectively used. Although the existing technology has begun to use three-dimensional technology to realize the waterway map step by step, for the data display of each terminal device, the data display of each terminal device is generally performed after a unified calculation in the background, and a refresh is completed, and the three-dimensional display of real-time data has not been realized. In the three-dimensio...

AI Technical Summary

Problems solved by technology

For waterway management and waterway governance departments, the information is not intuitive, fragmented, lagging, and cannot be used effectively

Although the existing technology has begun to use three-dimensional technology to realize the waterway map step by step, for the data display of each terminal device, the data display of each terminal device is generally performed after a unified calculation in the background, and a refresh is completed, and the three-dimensional display of real-time data has not been realized. In the three-dimensional waterway map In , due to the existence of a large number of terminal devices, it is necessary to realize the real-time display of data at the same time. Since the processing methods of each data are different, it is no longer possible to accept many data at the same time. In the case of real-time update, a large system overhead is required. Therefore, this The problem to be solved by the invention is to find a reasonable data update method to superimpose real-time data flow on the three-dimensional waterway map, save system overhead, and give full play to the true value of waterway data

Images