Subregion map navigation system

Abstract

The invention discloses a subregion map navigation system, which comprises a control module, a GPS (global positioning system) module and a display module, wherein the control module is arranged on an operation table, and is used for controlling the whole system; the control module comprises a keyboard arranged on the operation table; the GPS module is used for receiving a satellite signal and calculating positioning navigation information; through calculation, the longitude, latitude and altitude positioning information of the located position of the GPS module is obtained through calculation; the position of the GPS module at the moment is extracted from the NMEA-0183 format information together with the received information of satellite number, time and the like; the GPS module and the control module are in conversion connection through a serial port level; the display module comprises a display screen arranged on the operation table; the control module extracts the information of the GPS module and performs information and map configuration; a result is displayed by the display screen. The local real-time map can be drawn in a small region; target positioning can be performed; the geographical environment current condition can be more clearly displayed; the change can be conveniently performed according to the change of the real-time geographical environment.

Description

technical field [0001] The invention relates to the technical field of navigation, in particular to a small area map navigation system. Background technique [0002] Electronic map, that is, digital map, is a map that is stored and consulted digitally using computer technology. The method of storing information in electronic maps generally uses vector image storage. The scale of the map can be enlarged, reduced or rotated without affecting the display effect. In the early days, bitmap storage was used, and the scale of the map cannot be enlarged or reduced. Modern electronic map software generally uses geographical information systems to store and transmit map data, and other information systems. The current electronic maps such as Baidu map, Google map, Gaode map, etc., are practical and real-time positioning and navigation in a large area, but it is impossible to accurately locate and navigate the seats in a small area. Therefore, we propose a small area map navigation sy...

AI Technical Summary

Problems solved by technology

The current electronic maps such as Baidu map, Google map, Gaode map, etc., are practical and real-time positioning and navigation in a large area, but it is impossible to accurately locate and navigate the seats in a small area. Therefore, we propose a small area map navigation system to solve the above problems

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