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Method and device for dynamic position decoding

A dynamic location and location point technology, applied in special data processing applications, instruments, electrical digital data processing, etc., can solve the problems of large occupied space, limited corresponding table capacity, and low road network accuracy.

Active Publication Date: 2016-02-10
CENNAVI TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, the corresponding table will occupy more and more space as time grows.
In addition, the capacity of the corresponding table used by TMC technology is limited, which makes the accuracy of the road network low. For example, the corresponding table can only represent the main road of the city or the main intercity expressway between cities.

Method used

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  • Method and device for dynamic position decoding
  • Method and device for dynamic position decoding

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0042] Embodiment one, such as figure 2 As shown, the parsing of the received binary coded file may specifically be:

[0043] S201. Parse the binary coded file to determine whether there is linear position information, and if so, go to S202; otherwise, return parsing failure.

[0044] S202. Analyze the linear position information to determine whether there is a core point, and if so, proceed to S203; otherwise, return analysis failure.

[0045] S203, determine whether the coordinates of the core point, IPsignature (intersection label), RPSignature (routing point label), SRSignature (branch label), and the attribute value corresponding to the core point exist, if exist, enter S204, otherwise, return Parsing failed.

[0046] The IPsignature records the attributes of the road, such as: road function level, road name, etc.; the RPSignature records the BR (bearing, axis angle) attribute, PD attribute (distance between adjacent RPs), etc.; the SRSignature The CA (connectangle, c...

Embodiment 2

[0061] Embodiment two, such as Figure 5 As shown, according to the arrangement order of the routing points in the core points, for each routing point, pre-matching the routing points may specifically include the following steps:

[0062] S301. In the circular search area with the position of the routing point as the center in the map and the first preset value as the radius, search for the first road intersecting the circular area; If the first road intersecting the circular area is found, proceed to S302; if the first road intersecting the circular area is found, proceed to S303.

[0063] Wherein the first preset value may be, for example, 150 meters.

[0064] S302. Double the first preset value, that is, take the position of the routing point as the center of the circle and double the first preset value as the radius of the circular search area, and search for intersections with the circular area the first road; if the first road intersecting the circular area is found, g...

Embodiment 3

[0081] Embodiment three, such as Figure 6 As shown, according to the arrangement order of the intersection in the core point, for each intersection, pre-matching the intersection may specifically include the following steps:

[0082] S401. Search for a second road intersecting the circular area in the circular search area with the position of the intersection point as the center in the map and a second preset value as the radius; If the second road intersecting the circular area is found, proceed to S402; if the second road intersecting the circular area is found, proceed to S403.

[0083] S402. Double the second preset value, that is, take the location of the routing point as the center of the circle and double the second preset value as the radius of the circular search area, and search for intersections with the circular area the second road; if the second road intersecting the circular area is found, go to S403; otherwise, return failure.

[0084] S403. Save the searche...

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Abstract

The invention provides a dynamic position decoding method and a device and relates to the field of traffic information technology application. Through analysis of received binary code files, position reference is analyzed to achieve the purpose of serving users. The dynamic position decoding method includes: analyzing the received binary code files, obtaining core points and an attribute value corresponding to the core points, wherein the core points comprises a router peer, an intersection point and a location point, conducting pre-matching to the core points, obtaining a first way matched with the router peer, a second way matched with the intersection point and a third way matched with the location point, realigning the first way, the second way and the third way according to the order of the core points, and taking the first way corresponding to two adjacent router peers as an initial point, conducting route planning, and obtaining position reference.

Description

technical field [0001] The invention relates to the application field of dynamic traffic information technology, in particular to a method and device for dynamic position decoding. Background technique [0002] With the development of road information processing technology, the application of electronic map is becoming more and more extensive. More and more users install electronic maps through mobile terminals such as mobile phones, tablet computers, and car navigators to facilitate travel. The mobile terminal can obtain real-time road condition information through a traffic message channel (Traffic Message Channel, TMC for short) technology. The TMC technology provides mobile terminals with implemented road condition information by establishing, updating and maintaining the correspondence table between the map Link (the smallest road unit in the map) and the road conditions. When the map information is updated, the TMC technology needs to update the corresponding table. ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F17/30G01C21/30G01C21/34
Inventor 赵思凌段克敏戴希蒋晟王佳琳
Owner CENNAVI TECH
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