Method for using three-dimensional satellite to navigate

A satellite navigation and three-dimensional technology, applied in the field of three-dimensional satellite navigation, can solve problems such as weak sense of space, inability to perform real-time navigation, and lack of intuition

Active Publication Date: 2009-11-11
TERRA DIGITAL CREATING SCI & TECH (BEIJING) CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Now the GPS navigation system is based on two-dimensional, this navigation mode will show a fatal shortcoming when performing the best road navigation in a city with very complicated traffic: (1) the sense of space is not strong
That is to say, when there is a road under the bridge, the existing GPS will only show that there is a road in that direction, and cannot show whether it is on the bridge or under the bridge.
(2) Not intuitive enough for real-time navigation

Method used

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  • Method for using three-dimensional satellite to navigate

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] Step 1: Create a 3D scene in the GPS navigation system

[0029] First, the 3D terrain is created

[0030] Use the 3D terrain production software to load the image and elevation data according to its own geographic coordinates to generate 3D terrain data with real geographic coordinates. This 3D terrain data maps the geographic locations of the real world into the system one by one.

[0031] Then, the construction of the simulation scene

[0032] Use the model making software Creator to make models of buildings, roads, overpasses and vegetation in real scenes, and import them into the system scene.

[0033] Step 2: Install the GPS navigation system containing the three-dimensional scene into the navigation terminal used by the user;

[0034] Step 3: Optimal driving route query

[0035] The user can determine that the starting point is the National Stadium, the end point is the Asian Games Village, and the query condition is distance priority. Then the system analyzes ...

Embodiment 2

[0038] Example 2: Combining route planning algorithm and traffic flow information to determine the optimal route

[0039] The traffic flow server obtains the road condition information around the navigation terminal in real time. When it is necessary to query the optimal route, the navigation terminal first sends a request to the route planning server. ID, name, direction, coordinates, etc.; according to the return result of the route planning server, the navigation terminal sends a request to the traffic flow server. The content of the request includes the IDs of the above five roads. The current traffic congestion situation of the 5 roads, the request result content includes the ID of the road, the speed, the congestion situation, and according to all the results and the traffic congestion situation of the shortest path, it is judged that the route with the least road congestion is returned.

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Abstract

The invention discloses a method for using a three-dimensional satellite to navigate. The method is based on a three-dimensional scene, imports the real-time traffic condition information acquired from a GPS terminal, uses modes of drawing and marking to display the traffic information on a three-dimensional platform, realizes the real-time inquiry of the traffic condition and provides a truly immersive display effect for a user. The method solves the defects that the existing two-dimensional GPS navigation system has poor sense of space, is not enough intuitive and does not carry out real-time navigation.

Description

technical field [0001] The invention relates to the fields of three-dimensional geographic information systems and global satellite positioning and navigation, in particular to a three-dimensional satellite navigation method for applying a satellite positioning system to a three-dimensional environment. Background technique [0002] GPS navigation system is based on two-dimensional now, and this navigation pattern can show a fatal shortcoming when carrying out optimal road navigation in the city with very complicated traffic: (1) spatial sense is not strong. That is to say, when there is a road under the bridge, the existing GPS will only show that there is a road to pass in that direction, and cannot show whether it is on the bridge or under the bridge. (2) It is not intuitive enough to perform real-time navigation. The road conditions in cities change in real time, especially in cities with heavy traffic load, how to reach the destination in a relatively fast time and rel...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01C21/34G01S5/02
Inventor 张亚楠杨晓锋
Owner TERRA DIGITAL CREATING SCI & TECH (BEIJING) CO LTD
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