Differential positioning data transmission method, device and system of differential positioning system

Abstract

The invention discloses a differential positioning data transmission method of a differential positioning system. The method comprises: determining a registered terminal; sending bandwidth inquiry information to the registered terminal; receiving a bandwidth request uploaded by each registered terminal according to a reply sequence, and allocating bandwidth to the registered terminal according tothe bandwidth request and the bandwidth allocation algorithm of each registered terminal; transmitting a corresponding bandwidth allocation result to each registered terminal so that each registered terminal transmits differential positioning data to a reference station according to the corresponding bandwidth allocation result. Thus, in this scheme, the reference station allocates the respectivebandwidth to the registered terminals, so that the registered terminals and the reference station carry out the orderly communication within the respective allocated bandwidth, so as to realize the accurate transmission of the differential positioning data, avoid the collision of uploading signals of different terminals, and improve the bandwidth utilization rate. The invention also discloses a differential positioning data transmission device, a device and a system of the differential positioning system, which can also realize the technical effect.

Description

Technical field [0001] The present invention relates to the field of data transmission technology, and more specifically, to a differential positioning data transmission method, device, equipment and system of a differential positioning system. Background technique [0002] At present, my country's demand for high-precision positioning is showing explosive growth. According to national conditions, my country's Beidou high-precision positioning and navigation applications will be used in surveying and mapping, precision agriculture, drones, forestry, electricity, intelligent transportation, maritime, precision machine control, etc. Realize great potential. Reach high-precision positioning of about 1 meter or sub-meter level, with differential satellite positioning technology and real-time dynamic technology (Real Time Kinematic, RTK). The differential satellite positioning method can achieve positioning accuracy of sub-meter level or below. If the satellite reference base station ...

AI Technical Summary

Problems solved by technology

However, this wireless communication method has a disadvantage: when two or more user terminals communicate with the base station, the data sent by multiple user terminals are likely to collide with the base station, resulting in data loss or error

[0006] Therefore, how to realize the accurate transmission of differential positioning data between the user terminal and the reference station, and avoid data loss or error, is what those skilled in the art need to solve

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