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Method for promoting positioning precision of PDT base station

A base station positioning and base station technology, which is applied in the field of improving the positioning accuracy of PDT base stations, can solve the problem of low satellite positioning accuracy, and achieve the effects of improving command and dispatch efficiency, ensuring the safety of people's lives and property, and optimizing staffing

Active Publication Date: 2015-05-27
TIANJIN 712 COMM & BROADCASTING CO LTD
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Problems solved by technology

[0006] The purpose of the present invention is to overcome the deficiencies of the prior art, aiming at the problem of low positioning accuracy of a single satellite, to propose a method for improving the positioning accuracy of the PDT base station, by using the CORS system to improve the positioning accuracy of the PDT base station

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  • Method for promoting positioning precision of PDT base station
  • Method for promoting positioning precision of PDT base station
  • Method for promoting positioning precision of PDT base station

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Embodiment Construction

[0017] In order to understand the present invention more clearly, describe the present invention in detail in conjunction with accompanying drawing and embodiment:

[0018] Such as Figure 1 to Figure 3 As shown, the method to improve the positioning accuracy of the PDT base station is implemented with the PDT system and the CORS system as the hardware platform.

[0019] figure 1 It is a system connection diagram. The PDT system is composed of a PDT core network, a PDT base station and various PDT terminals. The PDT base station is connected to the PDT core network through a wired method, and the PDT terminal is connected to the PDT base station through a wireless method. The PDT base station needs to be equipped with a satellite positioning module. This module supports RTD positioning technology, or supports RTK positioning technology; CORS system consists of CORS reference station and CORS data center, CORS reference station and data center are connected by wire, and data ...

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Abstract

The invention relates to a method for promoting the positioning precision of a PDT base station. The method is divided into two modes: one is a network RTD mode comprising the following steps: a PDT core network periodically sends initial satellite positioning information of each base station at local area to a CORS data center, and then a base station satellite positioning module computes an accurate position in combination with pseudo-range differential information sent by the CORS data center; the second mode is a network RTK mode comprising the following steps: the PDT core network periodically sends satellite observation information of each base station at local area to the CORS data center, and the CORS data center directly computes the accurate position of each base station according to an area differential data model, and then sends the position to each base station. The method disclosed by the invention has the advantages that the positioning precision of the PDT base station in single satellite positioning is 10m; through the adoption of the method disclosed by the invention, with the CORS network, the satellite positioning module supporting the RTD technology is built in the base station, the positioning precision can be improved to sub-meter level by adopting the RTD mode; the satellite positioning module supporting the RTK technology is built in the base station, the positioning precision can be improved to centimeter-level by adopting the network RTK mode.

Description

technical field [0001] The invention relates to a PDT dedicated digital trunking communication system and a CORS continuous operation satellite positioning service comprehensive system, in particular to a method for improving the positioning accuracy of a PDT base station. The method utilizes the CORS system to improve the positioning accuracy of the PDT base station. Background technique [0002] PDT (Professional Digital Trunking) dedicated digital trunking system is a digital trunking communication system standard with independent intellectual property rights in my country. It is a new digital trunking system that incorporates independent innovation factors of Chinese manufacturers according to China's national conditions. [0003] CORS (Continuous Operational Reference System: Continuous Operational Satellite Positioning Service Integrated System) is a satellite positioning ground-assisted augmentation network, which is the most important part of the "spatial data infrast...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W64/00
CPCH04W4/06H04W64/003
Inventor 黄建尧董艳荣刘鹿鸣涂亚军武巍王浩冯云龙
Owner TIANJIN 712 COMM & BROADCASTING CO LTD
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