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Optimal method and device for reference station

A base station and debris technology, which is applied in the field of satellite observation and navigation, can solve the problems of automatic driving and navigation systems not operating normally, co-frequency interference, near-frequency interference, lack of reference stations, etc., to reduce the number, reduce radio interference, Guarantee the effect of normal operation

Inactive Publication Date: 2019-09-06
CHINA AGRI UNIV
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  • Claims
  • Application Information

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Problems solved by technology

[0004] However, due to the lack of coordination of the site, power, and frequency of each base station when setting up base stations, radio interference between base stations is more common, specifically manifested as co-frequency interference, near-frequency interference or signal Suppression, etc., which will cause a large number of automatic driving navigation systems to fail to work normally

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  • Optimal method and device for reference station
  • Optimal method and device for reference station
  • Optimal method and device for reference station

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Embodiment Construction

[0052] The specific embodiments of the present invention will be described in further detail below in conjunction with the drawings and embodiments. The following examples are used to illustrate the present invention, but not to limit the scope of the present invention.

[0053] Such as figure 1 Shown are the current base station distribution and its radio coverage. figure 1 Among them, the black dots are reference stations, indicating the distribution of each reference station. The circle obtained by taking each black dot as the center and the radio transmission distance of the reference station as the radius is the circle in the figure, and the area within each circle is the corresponding reference Radio coverage of the station, currently figure 1 The total coverage area of ​​each reference station can be called the target area. From figure 1 It can be seen that the radio coverage between the reference stations has a large overlap area, which will cause the radio interference p...

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Abstract

The invention provides an optimal selection method of a reference station. The optimal selection method of the reference station comprises the steps of S1, segmenting a target area based on the border of a coverage area of each reference station in the target area so as to obtain multiple coverage fragments, wherein the target area is the total coverage area of all the reference stations; S2, building a relation table between each reference station and the multiple coverage fragments based on the coverage relationship between each reference station and the multiple coverage fragments; and S3, judging whether the reference stations can be replaced respectively based on the relation table, and getting rid of the replaceable reference stations of the reference stations. The optimal selection method of the reference station can reduce the number of the reference stations distributed in the target area; and resources are saved. Meanwhile, due to the reduction of the number of the reference stations distributed in the target area, radio interference among the reference stations can be reduced, and normal operation of an automatic driving navigation system in the target area can be guaranteed.

Description

Technical field [0001] The invention relates to the technical field of satellite observation and navigation, and more specifically, to a preferred method and device for a reference station. Background technique [0002] In recent years, the application of my country's agricultural machinery automatic driving navigation technology has shown a vigorous development. This technology has high precision, time-saving and labor-saving, and can significantly improve the quality of work, land utilization and extend operating time. [0003] Autonomous driving of agricultural machinery requires the use of carrier phase difference technology (Real Time Kinematic, RTK) to process the carrier phase observations of the two measuring stations in real time, and send the carrier phase collected by the reference station to the user receiver to calculate the difference and solve the coordinates. It can obtain centimeter-level positioning accuracy in real time in the field. To this end, many agricultur...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W16/18H04W24/02H04W16/24
Inventor 吴才聪韩碧云
Owner CHINA AGRI UNIV