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Real-time passive location tracing method and system of vehicle in public place

A public place, passive positioning technology, applied in directions such as navigation through speed/acceleration measurement, to achieve the effects of saving system resources, high precision, and easy implementation

Inactive Publication Date: 2017-03-15
SHANGHAI INT AUTOMOBILE CITY GRP CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The purpose of the present invention is to provide a kind of, to solve existing

Method used

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  • Real-time passive location tracing method and system of vehicle in public place
  • Real-time passive location tracing method and system of vehicle in public place
  • Real-time passive location tracing method and system of vehicle in public place

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Embodiment Construction

[0045] In order to better illustrate the present invention, the present invention will be described in detail with a preferred embodiment and with accompanying drawings, specifically as follows:

[0046] Such as figure 1 As shown, the real-time passive positioning and tracking method of vehicles in public places provided by this embodiment, the public places here can be parking lots, parks for driving, schools, communities, etc. with maps and GPS signals or satellite signals during positioning, etc. The transmission is interfered or restricted or closed areas where signals cannot be received, so that traditional positioning methods cannot be performed (such as underground parking lots are difficult to receive satellite signals) or where the performance is limited or the accuracy is poor.

[0047] Specifically, the method provided in this embodiment includes steps S1-S4:

[0048] S1: Obtain the initial location of the vehicle and the map of the public place where the initial l...

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Abstract

The invention provides a real-time passive location tracing method of a vehicle in a public place. The method comprises the following steps of firstly obtaining an initial position of the vehicle and a map of the public place where the initial position is located; secondly obtaining the current traveling distance and traveling direction of the vehicle in real time; thirdly calculating the traveling track of the vehicle according to the real-time obtained traveling distance and traveling direction when the vehicle is in motion, and when the vehicle stops, stopping the calculation of the traveling track of the vehicle; fourthly taking the initial position as a starting point, and loading the traveling track onto the map in real time so as to carry out the real-time location of the vehicle. The method and system achieve the location of the vehicle without an external reference coordinate position, the location process is not affected by other reference substances, system resources are saved, location accuracy is higher and the real-time tracing property is better.

Description

technical field [0001] The invention relates to the technical field of vehicle positioning and tracking, in particular to a method and system for real-time passive positioning and tracking of vehicles in public places. Background technique [0002] Existing real-time tracking systems and methods for vehicles running in public places are divided into two categories: 1. Based on satellite system positioning, such as positioning based on GPS / GNASS / BEIDOU / Galieo; 2. Based on wireless beacons (such as Bluetooth, WIFI, etc.). These two positioning methods have a common feature: the reference position of the external reference object is used for calculation and positioning, that is, the position of the satellite, the installation position of the beacon node positioned by Bluetooth and WIFI are used as the known reference thing. There is a corresponding receiving device on the motor vehicle, and the receiving device receives the satellite / Bluetooth / WIFI signal from the known refer...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01C21/16
CPCG01C21/16
Inventor 金勇盛华单民珩沈凌肖礼卿喻杰曹光宇
Owner SHANGHAI INT AUTOMOBILE CITY GRP CO LTD