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Positioning method and device

A positioning method and a positioning device technology, which are applied in the directions of measuring devices, instruments, surveying and navigation, etc., can solve problems such as inaccurate positioning results of parking lots, and achieve the goals of solving inaccurate positioning results, avoiding further deviation, and accurate and stable positioning Effect

Active Publication Date: 2017-05-03
ALIBABA (CHINA) CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The embodiment of the present application provides a positioning method and device to at least solve the technical problem of inaccurate parking lot positioning results

Method used

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  • Positioning method and device

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Experimental program
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Embodiment 1

[0022] According to the embodiment of the present application, a method embodiment of a positioning method is also provided. It should be noted that the steps shown in the flow chart of the accompanying drawings can be executed in a computer system such as a set of computer-executable instructions, and, Although a logical order is shown in the flowcharts, in some cases the steps shown or described may be performed in an order different from that shown or described herein.

[0023] The method embodiment provided in Embodiment 1 of the present application may be executed in a mobile terminal, a computer terminal, or a similar computing device.

[0024] Optionally, in this embodiment, the above positioning method can be applied to such as figure 1 network environment shown. Such as figure 1 As shown, in this embodiment, the above positioning method can be applied to such as figure 1 In the hardware network environment formed by the computer terminal 101 and the server 103 show...

Embodiment 2

[0137] According to an embodiment of the present application, an embodiment of a device for implementing the above positioning method is also provided, such as Figure 5 As shown, the positioning device includes: a first acquisition module 10 , a dead reckoning module 30 , a trajectory acquisition module 40 , a first search module 50 , a first determination module 70 and a fusion module 90 .

[0138] Among them, the first acquisition module 10 is used to acquire T i-1 The geographical location, driving speed and angular velocity of the vehicle at all times. Wherein, there is one or more calculation periods between the previous moment and the current moment.

[0139] Dead reckoning module 30, for based on T i-1 Carry out dead reckoning based on the geographical location, driving speed and angular velocity of the vehicle at any time, and get the vehicle at the current T i The estimated geographic location of the moment.

[0140] Trajectory acquisition module 40, for based on...

Embodiment 3

[0204] Embodiments of the present application may provide a computer terminal, and the computer terminal may be any computer terminal device in a group of computer terminals. Optionally, in this embodiment, the foregoing computer terminal may also be replaced with a terminal device such as a mobile terminal.

[0205] Optionally, as in Figure 8 This computer terminal A in the embodiment shown (namely Figure 8 The computer terminal 101 in ) may include: one or more (only one is shown in the figure) processors 102 , memory 104 and transmission means 106 .

[0206] Among them, the memory can be used to store software programs and modules, such as the program instructions / modules corresponding to the positioning method and device in the embodiment of the present application, and the processor executes various functional applications and modules by running the software programs and modules stored in the memory. Data processing is to realize the above positioning method. The mem...

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Abstract

The invention discloses a positioning method, and a device. The positioning method is used for vehicle indoor positioning, and comprises following steps: the geographic position, the driving speed, and the angular velocity of vehicles at time T are acquired; position reckoning is carried out based on the geographic position, the driving speed, and the angular velocity of vehicles at time T so as to obtain the reckoned geographic position of the vehicles at current time T; driving track characteristics of the vehicles are acquired based on the driving speed and the angular velocity from time T to time T; route characteristics and a map driving route matching the driving track characteristics are acquired in a preset electronic map of the current driving geographic area; the map geographic position of the reckoned geographic position on the map driving route is acquired; fusion of the map geographic position and the reckoned geographic position is carried out so as to obtain the geographic position of the vehicles at current time T. The positioning method is capable of solving a technical problem that positioning results at parking lots are not accurate, and positioning with high applicability and high positioning result accurate is realized.

Description

technical field [0001] The present application relates to the field of vehicle positioning, in particular, to a positioning method and device. Background technique [0002] At present, in order to help car owners quickly find a parking space, car owners can be guided through parking lot navigation. Specifically, the continuous location information of the vehicle can be obtained through GPS positioning technology, and then the car owner can be guided based on the continuous location information. In order to improve the utilization rate of urban space, many parking lots are built underground, and the GPS signals of underground parking lots will be blocked. Traditional GPS positioning technology faces challenges in parking lot navigation application scenarios. [0003] In order to solve the problem of positioning failure caused by the loss of GPS signal, the existing technology proposes WIFI / ZigBee positioning technology, but the existing positioning technology needs to arrange...

Claims

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Application Information

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IPC IPC(8): G01C21/20G01C21/18
CPCG01C21/18G01C21/206
Inventor 王奇王涛
Owner ALIBABA (CHINA) CO LTD
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