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Navigation method and device

A navigation method and a technology of a navigation device, which are applied in the field of car navigation, can solve problems such as mileage increase and time waste, and achieve the effects of reducing mileage, improving driving efficiency, and saving fuel

Inactive Publication Date: 2011-06-15
CARELAND TECH SHENZHEN
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is to provide a navigation method that sends a traffic jam reminder to the user only when the vehicle is approaching the congested section in front, aiming at the defects that the navigation scheme of the prior art may bring time waste and mileage increase to the user

Method used

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  • Navigation method and device
  • Navigation method and device

Examples

Experimental program
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Effect test

Embodiment 1

[0088] A navigation route is pre-planned, for example, a starting point->road A->road B->road C->road D->road E->endpoint path. When the vehicle is driving according to the planned navigation route, the user's current position is determined in real time by receiving navigation satellite signals, and traffic road condition information is obtained at a certain time interval (such as 5 minutes). Whether there is a congested road section within a certain distance (for example, 5km) from the user's current location on the pre-planned navigation route, and if so, a prompt is issued.

[0089] Example: In the traffic condition information obtained last time, there is no congested road section on the navigation path ahead, but in the latest traffic condition information obtained, there is a new congested road section within 5km on the navigation path ahead, then at this time Prompt the user.

Embodiment 2

[0091] Determine the user's current location by receiving navigation satellite signals in real time, obtain traffic and road condition information at a certain time interval (such as 5 minutes), and detect the user's current location on the pre-planned navigation route at a certain time interval (independent time interval, such as 1 minute). Whether there is a congested road section within a certain distance (for example, 5km) of the location, and if so, a prompt will be issued.

[0092] Example: Since the pre-planned navigation route does not necessarily avoid the existing congested road sections, the system can detect whether there is a congested road section within 5km ahead every 1 minute, and only prompt the user when it detects that there is a congested road section within 5km ahead.

Embodiment 3

[0094] In the first or second embodiment, when it is detected that there is a congested road section within a certain distance from the user's current location on the navigation route, it is further judged whether there is an exit to avoid the congested road section before the vehicle travels to the congested road section , if there is an exit, the prompt will be issued, and if there is no exit, no prompt will be given.

[0095] If there is traffic ahead but there is no other way to go, it is useless to remind you.

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PUM

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Abstract

The invention relates to a navigation method and a navigation device, which are used for warning a user when a vehicle approaches a congestion road section. The navigation method comprises the following steps of: planning a navigation path according the user requirement; executing the following substeps when a vehicle of the user drives along the planned navigation path: acquiring a positioning signal sent by a navigational satellite in real time and calculating the current position of the vehicle of the user according to the positioning signal; acquiring traffic road condition information; judging whether a congestion road section exists or not in the navigation path in the advancing direction of the vehicle of the user and in a first preset distance from the congestion road section to the current position of the vehicle of the user on the basis of the current position of the vehicle of the user and the acquired traffic road condition information; and when determining that the congestion road section exists, sending a congestion prompt to the user.

Description

technical field [0001] The invention relates to vehicle navigation, and more specifically, to a method and device for reminding a user when a vehicle approaches a congested road section. Background technique [0002] In existing vehicle navigation schemes, when planning a route for a user, it generally avoids road sections that are currently congested, that is, automatically selects a path that is currently free of congested road sections. One problem with this solution is that the congested road section ahead may not always be in a congested state during planning, and it may not be necessary to bypass it. It may already be in a smooth state when driving to this road section as usual. Then the detour route planned before may prolong the time for the user to reach the destination and increase the mileage, thus wasting more resources, including time resources and fuel resources. Another problem that may exist is that there may be congestion during the driving process of the r...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01C21/34G01C21/36
Inventor 张文星
Owner CARELAND TECH SHENZHEN
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