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Method and device for identifying viaduct roads

A road identification and viaduct technology, applied in the field of navigation, can solve the problems of inability to identify vehicles on the elevated road or the elevated road, and the difference in air pressure is large.

Active Publication Date: 2018-11-02
BAIDU ONLINE NETWORK TECH (BEIJIBG) CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The existing navigation technology mainly uses the air pressure value measured by the barometer of the mobile terminal on the vehicle to calculate the problem of the vehicle going up or down the elevated road, but the air pressure value changes with the weather, and the air pressure values ​​​​measured by different mobile terminals are different. Larger, so that it can only be recognized that the vehicle is switching on or off the elevated road, but it cannot be recognized whether the current road the vehicle is driving is on the elevated road or under the elevated road

Method used

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  • Method and device for identifying viaduct roads
  • Method and device for identifying viaduct roads
  • Method and device for identifying viaduct roads

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Experimental program
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Embodiment 1

[0017] figure 1 It is a schematic flowchart of a method for identifying viaduct roads provided in Embodiment 1 of the present invention. This embodiment is applicable to the case where it is desired to identify whether the vehicle is on or under the viaduct. The method can be executed by an identification device for viaduct roads, which can be realized by means of hardware and / or software, and the device is usually configured in a navigation server or a navigation client. see figure 1 The identification method of the viaduct road provided in this embodiment specifically includes the following:

[0018] S11. Obtain satellite distribution information detected by the mobile terminal.

[0019] In this embodiment, the mobile terminal may be an electronic product such as a smart phone, a tablet computer or a personal digital assistant. The GPS (Global Positioning System, Global Positioning System) module in the mobile terminal regularly detects satellite distribution information...

Embodiment 2

[0029] This embodiment provides a new identification method for viaduct roads on the basis of the above embodiments. figure 2 It is a schematic flowchart of a method for identifying viaduct roads provided in Embodiment 2 of the present invention. see figure 2 The identification method of the viaduct road provided in this embodiment specifically includes the following:

[0030] S21. Obtain satellite distribution information detected by the mobile terminal.

[0031] S22. Estimate the position information of the mobile terminal according to the acquired satellite distribution information detected by the GPS module in the mobile terminal, and calculate the error range of the position information.

[0032] In this embodiment, the location information of the mobile terminal is estimated based on the GPS positioning technology, and an error range of the location information is calculated, and the error range may be called a GPS radius. Specifically, according to the satellite di...

Embodiment 3

[0039] image 3 It is a schematic structural diagram of an identification device for a viaduct road provided in Embodiment 3 of the present invention. This embodiment is applicable to the case where it is desired to identify whether the vehicle is on or under the viaduct. see image 3 , the specific structure of the identification device of the viaduct road is as follows:

[0040] An information acquisition module 31, configured to acquire satellite distribution information detected by the mobile terminal;

[0041] The road identification module 32 is configured to determine, according to the acquired satellite distribution information, that the current road on which the vehicle on which the mobile terminal is traveling is the road on the viaduct or the road under the viaduct.

[0042] In this embodiment, the satellite distribution information may include at least one of the number of satellites, the strength of satellite signals, the elevation angle of the satellites, and ...

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Abstract

The invention discloses a viaduct road identifying method and apparatus. The method comprises the following steps: obtaining the satellite distribution information detected by a mobile terminal; and according to the obtained satellite distribution information, determining the road, on which a vehicle comprising the mobile terminal is driving, is a road above a viaduct or a road under a viaduct. The provided technical scheme can obtain the satellite distribution information detected by a mobile terminal and determine the road, on which a vehicle comprising the mobile terminal is driving, is a road above a viaduct or a road under a viaduct according to the obtained satellite distribution information, and according to the method, whether a vehicle is on or under a viaduct, which is in a relative static state, can be judged.

Description

technical field [0001] The embodiments of the present invention relate to the technical field of navigation, and in particular to a method and device for identifying viaduct roads. 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 mobile terminal equipped with navigation software. for road navigation. [0003] The existing navigation technology mainly uses the air pressure value measured by the barometer of the mobile terminal on the vehicle to calculate the problem of the vehicle going up or down the elevated road, but the air pressure value changes with the weather, and the air pressure values ​​​​measured by different mobile terminals are different. Larger, so that it can only be recognized that the vehicle is switching on or off the elevated road, but it ca...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01C21/34
CPCG01C21/3446
Inventor 张传明姚伟峰
Owner BAIDU ONLINE NETWORK TECH (BEIJIBG) CO LTD