A location tracking method based on terminal forwarding GNSS signal

A technology for positioning tracking and terminal information, applied in the field of satellite navigation, can solve problems such as inappropriate large-scale applications, heavy terminal equipment, and difficulty in energy replacement, achieving information monitoring, improving detection capabilities, and low cost.

Active Publication Date: 2018-11-27
BEIHANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] However, the disadvantages of these technologies are that the terminal equipment is heavy in weight, high in power consumption, and high in cost, and is not suitable for large-scale applications. Applications that require terminal miniaturization and portability, and applications where energy replacement is difficult

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  • A location tracking method based on terminal forwarding GNSS signal
  • A location tracking method based on terminal forwarding GNSS signal
  • A location tracking method based on terminal forwarding GNSS signal

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Embodiment Construction

[0041] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with specific embodiments and with reference to the accompanying drawings.

[0042] The present invention proposes a new positioning and tracking method based on terminal forwarding GNSS signals. The method mainly transmits a section of GNSS satellite navigation signals through the terminal on the terminal body, and hands over the terminal positioning calculation work to the base station for processing.

[0043] figure 1 Shown is a schematic structural diagram of a location tracking method based on terminal forwarding GNSS signals according to an embodiment of the present invention. The system consists of terminals, forwarding base stations, information processing centers and master control stations.

[0044] figure 2 Shown is the overall flow chart of the positioning and tracking method based on...

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Abstract

The invention discloses a locating and tracking method based on GNSS signals transmitted by terminals. The navigation satellite signals are transmitted by the terminals, and a base station processes the transmitted signals to achieve terminal locating. The method comprises the steps that 1, the terminals receive a small section of GNSS signals, and the GNSS signals and terminal information signals are subjected to quadrature modulation to be transmitted to the base station; 2, the base station assists in processing the GNSS signals transmitted by the terminals by means of a local GNSS receiver, terminal location information is solved, and the terminal information signals are demodulated to obtain information such as individual identities of the terminals; 3, the base station sends the location information and the identity information of the terminals to an information processing center for summarization and then sends the summarized information to a main control station; 4, the main control station manages the location information of large-scale terminals in a classified mode for querying. According to the method, the location and identity information of the terminal can be automatically acquired, transmitted and managed at low power consumption and low cost, and long-term continuous high-precision locating and tracking can be conducted on large-scale terminals in a certain area.

Description

technical field [0001] The invention relates to the technical field of satellite navigation, in particular to a positioning and tracking method based on terminal forwarding GNSS signals. Background technique [0002] Satellite navigation and positioning systems are being used more and more widely. Universal satellite navigation receivers can conveniently provide global, all-weather and continuous precise three-dimensional positioning capabilities. The assisted GNSS technology provides auxiliary information through the local server and the cell base station, which simplifies the steps of receiving and processing satellite signals, minimizes the amount of information and time needed to be obtained from satellite signals, and thus can quickly complete positioning and process weaker signal. [0003] Terminal location tracking is in increasing demand in today's society, such as terminal location information acquisition and transmission, pasture animal detection and location, eq...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01S19/46
CPCG01S19/46
Inventor 秦红磊王民康
Owner BEIHANG UNIV
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