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Map matching method and device, electronic equipment and readable medium

A map matching and sequence matching technology, applied in the computer field, can solve problems such as low accuracy, and achieve the effect of improving the accuracy and improving the navigation efficiency.

Pending Publication Date: 2020-12-15
BEIJING BAIDU NETCOM SCI & TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in the scene where the sampling points are sparse, the accuracy of map matching using HMM is low

Method used

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  • Map matching method and device, electronic equipment and readable medium
  • Map matching method and device, electronic equipment and readable medium
  • Map matching method and device, electronic equipment and readable medium

Examples

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Embodiment Construction

[0020] In the present disclosure, unless otherwise stated, using the terms "first", "second", etc. to describe various elements is not intended to limit the positional relationship, temporal relationship or importance relationship of these elements, and such terms are only used for Distinguishes one element from another. In some examples, the first element and the second element may refer to the same instance of the element, and in some cases, they may also refer to different instances based on contextual description.

[0021] The terminology used in describing the various described examples in this disclosure is for the purpose of describing particular examples only and is not intended to be limiting. Unless the context clearly indicates otherwise, if the number of elements is not specifically limited, there may be one or more elements. In addition, the term "and / or" used in the present disclosure covers any one and all possible combinations of the listed items. For example...

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Abstract

The invention provides a map matching method and device, electronic equipment and a medium, and relates to the technical field of computers, in particular to the field of electronic maps and deep learning. The map matching method comprises the following steps: acquiring a positioning coordinate sequence; determining one or more candidate positioning coordinate sequences corresponding to the positioning coordinate sequence by using a preset sequence conversion model based on the positioning coordinate sequence, the preset sequence conversion model being obtained by training a plurality of sample positioning coordinate sequences, wherein the plurality of sample positioning coordinate sequences are obtained by performing thinning sampling on a historical positioning coordinate sequence; and determining a target road section matched with the positioning coordinate sequence based on the one or more candidate positioning coordinate sequences.

Description

technical field [0001] The present disclosure relates to the field of computer technology, specifically to the field of electronic map and deep learning technology, and in particular to a method, device, electronic device and computer-readable storage medium for map matching. Background technique [0002] Location Based Service (Location Based Service, LBS) is to use various types of positioning technology to obtain the current location of the positioning device, and provide information resources and basic services to the positioning device through the mobile Internet. Map matching technology is widely used in LBS. Map matching techniques can be used to match recorded locations (eg, geographic coordinates) to logical models of the real world (eg, a road network for an area). [0003] In the related art, a common algorithm for map matching is Hidden Markov Model (HMM), which uses the coordinates of the recorded location as a single input of the HMM model to determine the tar...

Claims

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Application Information

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IPC IPC(8): G06F16/29G06F16/9537G06N3/04G06N3/08
CPCG06F16/29G06F16/9537G06N3/049G06N3/08G06N3/045
Inventor 包恒达王亦乐
Owner BEIJING BAIDU NETCOM SCI & TECH CO LTD