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GNSS (global navigation satellite system) differential signal broadcasting system and method combining internet and radio

A differential signal and Internet technology, applied in satellite radio beacon positioning system, radio wave measurement system, measurement device, etc., to achieve the effect of enhancing positioning accuracy and reliability, reducing burden, saving network communication fees and CORS service fees

Inactive Publication Date: 2013-10-23
章迪
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

But it hasn't been possible to do both at the same time

Method used

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  • GNSS (global navigation satellite system) differential signal broadcasting system and method combining internet and radio
  • GNSS (global navigation satellite system) differential signal broadcasting system and method combining internet and radio

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Embodiment Construction

[0024] Combine below figure 1 with figure 2 Embodiments of the present invention will be described in detail.

[0025] figure 1 The main constituent parts of the embodiment of the present invention are illustrated. figure 2 It is a schematic flow chart of the differential signal distribution method according to the present invention.

[0026] This embodiment adopts a notebook computer and a radio station, the network module 1 is acted by a wireless network card connected to the notebook computer, and the location module 2 and the Ntrip client 3 are installed on the notebook computer in the form of software.

[0027] The network module 1 can also be served by a wired network card of a notebook. If conditions permit, users can connect to the Internet through broadband, which can further save costs and improve communication stability.

[0028] Radio 4 adopts a data transmission radio that matches the built-in radio of the rover receiver. Its data transmission rate is above...

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Abstract

The invention establishes a GNSS (global navigation satellite system) differential signal broadcasting system and method combining internet and radio. The system comprises an internet module, an Ntrip client end, a position module and a radio part; the method comprises the steps of obtaining a differential signal from an Ntrip server by utilizing one CORS (continuously operating reference stations) authorized user name and a code matched with the same; and broadcasting through the radio to enable multiple moving station receivers in the covering range of the radio to perform high-precision RTK (real-time kinematic) positioning. The GNSS differential signal broadcasting system and method combining the internet and the radio are capable of reducing the server burden, and greatly saving the network communication cost and CORS serve cost of a user in comparison with the traditional RTK measuring mode via internet, are capable of omitting the trouble that the user needs to distribute a control network and erect a reference station by self in comparison with the traditional uni-base station radio RTK measuring mode, and are also capable of enhancing the positioning precision and reliability.

Description

technical field [0001] The present invention relates to a GNSS differential signal broadcasting system and method combining the Internet and a radio station, in particular to a GNSS network RTK (carrier phase real-time dynamic differential positioning) acquired from an Ntrip (ie: protocol for RTCM transmission through the Internet) server A system that broadcasts the differential signal to the rover's GNSS receiver through the digital transmission station. Background technique [0002] GNSS (Global Navigation Satellite System) technology is widely used in the field of surveying and mapping. A single GNSS device is used to perform standard single-point positioning with pseudo-range codes as observation values. The positioning accuracy is usually 10 to 20 meters. By building an RTK system and using the carrier phase as the observation value for positioning, the positioning accuracy of the rover can reach centimeter level within 30km from the reference station. [0003] RTK is...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01S19/10G01S19/07
Inventor 章迪郭际明陈雪丰
Owner 章迪
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