Method for transmitting ephemeris data during RTK measurement and RTK measurement system

A technology of ephemeris data and transmission method, which is applied in the direction of radio wave measurement system, satellite radio beacon positioning system, measurement device, etc. It can solve the problems of large amount of data, affecting the measurement speed of RTK measurement station, and high occupancy rate of transmission bandwidth

Pending Publication Date: 2019-03-15
河南准位信息技术有限公司
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Problems solved by technology

In this way, the mobile receiving station actually transmits a lot of repeated data to the RTK measurement station, the amount of transmitted data is large, and th

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  • Method for transmitting ephemeris data during RTK measurement and RTK measurement system
  • Method for transmitting ephemeris data during RTK measurement and RTK measurement system
  • Method for transmitting ephemeris data during RTK measurement and RTK measurement system

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Embodiment Construction

[0037] The core of the present invention is to provide a method for transmitting ephemeris data during RTK measurement. By reducing the repetitive data transmitted by the mobile receiving station to the RTK measurement station, the amount of data transmitted by the mobile receiving station is reduced, the RTK measurement speed is increased, and the same The transmission bandwidth can accommodate more data transmitted by mobile receiving stations, thereby increasing the number of mobile receiving stations that can accommodate data transmission. Another core of the present invention is to provide a mobile receiving station and RTK measurement system based on the above method.

[0038] In order to make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be described clearly and completely in conjunction with the accompanying drawings in the embodiments of the ...

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Abstract

The invention discloses a method for transmitting ephemeris data during RTK measurement, which is applied to a mobile receiving station and comprises the following steps: receiving ephemeris data withpreset time length every preset transmission period and transmitting the ephemeris data to a real-time dynamic carrier phase difference partial positioning RTK measuring and calculating station; theRTK measuring station carries out RTK measurement according to ephemeris data and other navigation information data; wherein the preset time length is not less than the time for the satellite to transmit the complete ephemeris data once, and the preset transmission period is greater than the preset time length and is not greater than the ephemeris minimum updating period in the current satellite system. The method for transmitting ephemeris data during RTK measurement reduces the repeated data transmitted to the RTK measuring and calculating station by the mobile receiving station, thereby reducing the data volume transmitted by the mobile receiving station, improving the RTK measuring and calculating speed and enabling the same transmission bandwidth to accommodate more data transmitted by the mobile receiving station, thereby increasing the number of mobile receiving stations that the data link can accommodate to transmit data. The invention further discloses a mobile receiving station and an RTK measuring system based on the method.

Description

Technical field [0001] The present invention relates to the technical field of RTK measurement, in particular to a method for transmitting ephemeris data during RTK measurement. The invention also relates to a mobile receiving station and RTK measurement system Background technique [0002] RTK (Real Time Kinematic, real-time dynamic carrier phase differential positioning) measurement system is a combined system composed of GNSS measurement technology and data transmission technology. It is a real-time differential GNSS measurement based on the carrier phase observation. It can provide real-time location Specify the centimeter-level accuracy of the three-dimensional positioning result in the coordinate system, and reach the centimeter-level accuracy. The RTK measurement system usually consists of four parts, namely GNSS RTK reference station (including GNSS receiver, antenna and signal processing software), real-time data transmission unit (data transmission link, commonly known...

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Application Information

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IPC IPC(8): G01S19/41G01S19/43G01S19/03G01S19/13
CPCG01S19/03G01S19/13G01S19/41G01S19/43
Inventor 崔业伟任玉轩邢孙辉张大龙杜剑平
Owner 河南准位信息技术有限公司
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