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Real-scenery navigation method and navigation equipment

The technology of a navigation device and a navigation method, which is applied in the field of navigation, can solve problems such as incomplete navigation prompts, and achieve the effect of avoiding incomplete navigation prompts and accurate driving paths

Inactive Publication Date: 2015-04-15
AUTONAVI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Embodiments of the present invention provide a real-scene navigation method and a navigation device to solve the problem of incomplete navigation prompts in real-scene navigation in the prior art

Method used

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  • Real-scenery navigation method and navigation equipment
  • Real-scenery navigation method and navigation equipment

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0049] When the user travels by driving a vehicle, he can conduct road navigation through a device equipped with navigation software (hereinafter referred to as the navigation device), that is, the navigation device plans the navigation path from the starting location to the destination location and guides the user to the destination location. Among them, the navigation path It is composed of continuous navigation sections, and the navigation section is composed of continuous location points. When the user selects the real-scene navigation function, what is displayed on the screen of the navigation device is no longer an electronic map interface, but a real-scene image (street view image) collected in real time by the camera of the navigation device. The real-scene navigation method provided by the embodiment of the present invention will be described in detail below with reference to the accompanying drawings.

[0050] Such as figure 2 As shown, it is a flow chart of the re...

Embodiment 2

[0065] Embodiment 2 of the present invention proposes that when the navigation device determines each navigation track point, it can first obtain the geographical location in front of the current location of the navigation device and the location of the current location of the navigation device from among the location points included in the pre-planned navigation route. Each location point with matching coordinates, wherein, the navigation device can, but not limited to, obtain each location point that is located in front of the current location of the navigation device and matches the geographic coordinates of the current location in the following two ways, respectively, as follows introduce:

[0066] In the first acquisition method, the navigation device determines the position points that are located in front of the current position and whose distance from the current position of the navigation device is not greater than the set distance among the position points included in...

Embodiment 3

[0075] Such as Figure 4 As shown, it is a schematic flow diagram of converting the geographic coordinates of navigation track points into pixel coordinates in real-scene images by the navigation device proposed in Embodiment 3 of the present invention. The specific processing flow is as follows:

[0076] Step 41 , according to the geographic coordinates of the current location of the navigation device and the geographic coordinates of the navigation track point, the geographic coordinates of the current location and the geographic coordinates of the navigation track point are converted into ground two-dimensional coordinates.

[0077]Among them, the navigation device can be used, but not limited to, through existing algorithms that transform from geodetic coordinates to map projection coordinates (for example, Mercator projection algorithm, Gauss-Krüger projection algorithm, general Mochato projection algorithm, Lambert projection algorithm) , Albers projection algorithm, etc...

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Abstract

The invention discloses a real-scenery navigation method and navigation equipment. The method comprises: acquiring a geographical coordinate of the navigation equipment present position; determining a navigation tracing point at the front of the present position according to a pre-programmed navigation path and the geographical coordinate of the navigation equipment present position; obtaining a pixel coordinate of the navigation tracing point in a real-scenery image displayed on a navigation equipment screen according to the determined geographical coordinate of the navigation tracing point; and drafting a navigation guiding path in the real-scenery image displayed the navigation equipment screen according to the pixel coordinate of the navigation tracing point. By employing the technical scheme, the problem that navigation prompt is incomplete during real-scenery navigation in the prior art is solved.

Description

technical field [0001] The invention relates to the technical field of navigation, in particular to a real-scene navigation method and a navigation device. Background technique [0002] With the construction of roads and the increase in the number of urban vehicles, self-driving travel has become the main way of transportation. If you do not know the road or cannot find the destination when traveling, users can use the terminal equipment equipped with navigation software. (hereinafter referred to as navigation device) for road navigation, navigation data is stored in the navigation device, when the user uses the navigation device for road navigation, the navigation device first obtains the user's current location and the destination he wants to reach, and then according to the stored navigation The navigation route that can reach the destination determined by the data is provided to the user, and the user can smoothly reach the destination according to the navigation route p...

Claims

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Application Information

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IPC IPC(8): G01C21/34G01S19/42
CPCG01C21/3647
Inventor 段思九陈怡
Owner AUTONAVI
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