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Navigation positioning method, device and system

A technology for navigation and positioning and vehicle-mounted navigation devices, which is applied in transmission systems, near-field transmission systems, and services based on location information. The effect of data transmission, low transmission delay, and guaranteed continuity

Inactive Publication Date: 2015-07-01
SHANGHAI PATEO INTERNET TECH SERVICE CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, since differential information is a "point-to-face" service, and the mobile communication network technology system is designed for "point-to-point" services, this has brought certain challenges to the large-scale promotion of differential-based high-precision applications in the transportation industry. question
The first is that the differential data delay cannot be guaranteed, and the second is that a large number of users occupy the channel in real time, which affects other mobile communication services
[0009] From the above, the current broadcast technology of RTK information is limited by the defects of various wireless communication links, and there are still many deficiencies in practical applications

Method used

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  • Navigation positioning method, device and system
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Embodiment Construction

[0033] The present invention will be further described below in conjunction with specific embodiments and accompanying drawings, but the protection scope of the present invention should not be limited thereby.

[0034] refer to figure 1 , the navigation and positioning method of the present embodiment includes the following steps:

[0035] Step S11, receiving navigation and positioning information, and receiving real-time dynamic differential data from the reference station through the DSRC data link;

[0036] Step S12, according to the navigation positioning information and the real-time dynamic difference data, the position of the vehicle navigation device itself is obtained.

[0037] The navigation and positioning method can be used in vehicle navigation equipment, for example, positioning and navigating the vehicle while the vehicle is running. Dedicated short-range radio communication (DSRC) is a traffic-specific short-range communication technology that can provide rel...

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Abstract

The invention provides a navigation positioning method, device and system. The method comprises the following steps: receiving navigation positioning information, and receiving real-time kinematic (RTK) data from a base station through a DSRC data link; calculating according to the navigation positioning information and the real-time kinematic data to obtain self-position of a vehicle navigation device. Through the adoption of the method, device and system provided by the invention, the real-time and high-precision broadcasting of RTK information can be realized, the transmission delay is low and the practicability is strong.

Description

technical field [0001] The invention relates to a vehicle navigation system, in particular to a navigation positioning method, device and system. Background technique [0002] To obtain high-precision GPS measurement results, carrier phase observations must be used. Real-time dynamic differential (RTK, Real-time Kinematic) positioning technology is a kind of GPS technology. It is a real-time dynamic positioning technology based on carrier phase observations. Provides the three-dimensional positioning results of the station point in the specified coordinate system, and achieves centimeter-level accuracy. In the RTK operation mode, the base station transmits its observation value and station coordinate information to the rover through the data link. The rover station not only receives data from the reference station through the data link, but also collects GPS observation data, and forms differential observation values ​​in the system for real-time processing, and at the same...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W64/00H04W4/04H04B5/00
CPCH04W64/00H04W4/025H04W4/046H04W4/80H04W64/006
Inventor 郑洪江王会鲜原树宁解正文
Owner SHANGHAI PATEO INTERNET TECH SERVICE CO LTD