Unlock instant, AI-driven research and patent intelligence for your innovation.

Navigation systems, navigation devices and data centers

A technology of a navigation system and a navigation device, which is applied in the field of navigation systems and can solve the problem of not being able to obtain route guidance and the like

Inactive Publication Date: 2015-11-18
DENSO CORP
View PDF11 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In the conventional technology, when an uncommunicable area in which data communication cannot be performed is included in the target section, further route guidance cannot be obtained after entering the uncommunicable area included in the target section

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Navigation systems, navigation devices and data centers
  • Navigation systems, navigation devices and data centers
  • Navigation systems, navigation devices and data centers

Examples

Experimental program
Comparison scheme
Effect test

no. 1 example ）

[0031] refer to Figure 1 to Figure 4B A first embodiment of the present disclosure will be described. Such as figure 1 As shown in , the navigation system 1 includes a navigation device 3 and a data center 5 .

[0032] The navigation device 3 is equipped to a vehicle, and mainly includes a navigation controller (NAVICONT) 10 . The navigation device may be a portable terminal such as a smartphone with a navigation function other than a device equipped to a vehicle. The navigation controller 10 mainly includes a well-known microcomputer (which has a central processing unit (CPU)), a read only memory (ROM), a random access memory (RAM), an input / output (I / O) interface, and an interface for coupling the CPU. , ROM, RAM and I / O interface bus. In addition, the navigation controller 10 also includes a position detector (POSIDETC) 20 , a switch group (SWITCH) 30 , a memory 40 , a display screen (DISPLAY) 50 , an audio output device (AUDIOOUT) 60 and a communication device (COMMDE...

no. 2 example ）

[0063] Refer below Figure 5 to Figure 7B A second embodiment of the present disclosure will be described. In the second embodiment, the map update process performed by the navigation controller 10 of the navigation device 3 and the update data transmission process performed by the data center controller 80 of the data center 5 are different from those of the first embodiment.

[0064] In the second embodiment, configurations of the navigation device 3 and data center 5 similar to those of the first embodiment are omitted, and only map update processing and update data transmission processing are described.

[0065] The following will refer to Figure 5 The map update process executed by the navigation controller 10 of the navigation device 3 will be described. While supplying power to the navigation device 3, repeatedly execute Figure 5 Map update handling as shown in .

[0066] When the map update process starts, the navigation controller 10 judges whether or not a star...

no. 3 example ）

[0081] In the aforementioned embodiments, when a map update request is received from the navigation device 3 ( figure 2 In step S110, Figure 5 In step S310), the data center 5 searches for the target communication imperfect area ( image 3 In step S230, Figure 6 in step S430). Subsequently, the data center 5 designates the target grid ( image 3 In step S250, Figure 6 Step S450 in ), sending the update data of the target grid to the navigation device 3 ( image 3 In step S260, Figure 6 in step S460).

[0082] In the navigation system 1 according to the present embodiment, the navigation device 3 searches for a target communication imperfect area, and specifies a target mesh including the target communication imperfect area. Subsequently, the navigation device 3 sends a request for update data of the target mesh. In this case, the navigation device 3 includes an information acquisition device 84 (such as figure 1 shown in ), replacing Data Center 5.

[0083] The ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

A navigation system includes a navigation apparatus, a data center, a communication-defective region acquisition device, a communication-defective region search device, and a target region specify device. The data center performs transmits an update data of a target region to the navigation apparatus. The communication-defective region acquisition device acquires information of a communication-defective region. The communication-defective region search device searches for a part of the communication-defective region as a target communication-defective region, which includes a route scheduled to go through. The target region specify device specifies the target region based on the target communication-defective region. The data center includes an update data transmission device that transmits the update data of the target region to the navigation apparatus before the navigation apparatus enters the target communication-defective region.

Description

technical field [0001] The present disclosure relates to a navigation device, a data center, and a navigation system including the navigation device and the data center, wherein the navigation device performs route guidance and the data center performs data communication with the navigation device. Background technique [0002] Conventionally, in order to increase the accuracy of route guidance of a navigation device, the navigation device updates map data by performing data communication with a data center. Recently, the navigation device can partially update the map data so that only the changed part of the map data is updated. [0003] The map data indicates a map of a certain area. The map data is divided into one or more predetermined segment data elements indicating one or more predetermined segments included in the map of the area. Hereinafter, predetermined segments are also referred to as grids, and predetermined segment data elements are also referred to as grid ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): G01C21/30G08G1/0969
CPCG01C21/32G08G1/0969G09B29/106G01C21/3889G01C21/3896
Inventor 久富慎二
Owner DENSO CORP
Features
  • R&D
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com