Offline map acquiring method and vehicle-mounted unit

An on-board unit and acquisition method technology, applied in the field of electronics, can solve problems such as inability to realize, not downloading an offline map in advance, etc., and achieve the effect of solving the problem of map acquisition

Inactive Publication Date: 2017-01-11
LAUNCH TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there is a situation that the user currently does not have a network to obtain the map in real time, and has not downloaded the offline map of the corresponding area in advance, so when the user needs to use the map for navigation, it cannot be realized.

Method used

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  • Offline map acquiring method and vehicle-mounted unit
  • Offline map acquiring method and vehicle-mounted unit
  • Offline map acquiring method and vehicle-mounted unit

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Embodiment Construction

[0046] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0047] First of all, the nouns involved in the embodiments of the present invention are firstly explained.

[0048] Roadside Unit (RSU, English abbreviation Road Side Unit), installed on the roadside, uses dedicated short-range communication technology (DSRC, Dedicated Short Range Communication) to communicate with the on-board unit (OBU, On Board Unit) or server.

[0049] On Board Unit (OBU, On Board Unit) is a device that uses DSRC technology to communicate with ...

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Abstract

The embodiment of the invention provides an offline map acquiring method and a vehicle-mounted unit. The method comprises the following steps: the vehicle-mounted unit transmits a connecting request to a roadside unit and establishes connection with the roadside unit; the vehicle-mounted unit transmits a regional map acquiring request to the roadside unit; the vehicle-mounted unit receives map data, which is transmitted by the roadside unit, of the region of the roadside unit, wherein the map data of the region of the roadside unit is acquired by the roadside unit based on the regional map acquiring request and is transmitted to the vehicle-mounted unit. By adoption of the offline map acquiring method and the vehicle-mounted unit, the problem about map acquisition by vehicle-mounted equipment without a mobile network can be solved.

Description

technical field [0001] The invention relates to the field of electronic technology, in particular to an off-line map acquisition method and a vehicle-mounted unit. Background technique [0002] At present, the maps of in-vehicle devices are generally downloaded and updated in real time when there is a network, or the offline map data package is downloaded in advance when there is a network, and then used when there is no network. However, there is a situation where the user currently does not have a network to obtain the map in real time, and has not downloaded the offline map of the corresponding area in advance, so when the user needs to use the map for navigation, it cannot be realized. Contents of the invention [0003] The technical problem to be solved by the embodiments of the present invention is to provide an offline map acquisition method and a vehicle-mounted unit, which are used to solve the problem of map acquisition of the vehicle-mounted equipment without a ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01C21/30
CPCG01C21/30G07B15/06H04L65/40
Inventor 刘均宋朝忠欧阳张鹏
Owner LAUNCH TECH CO LTD
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