Communication vehicle-mounted antenna alignment system based on Beidou dual-mode terminal

A dual-mode terminal, Beidou technology, applied in the field of communication, can solve the problems of poor positioning accuracy and poor antenna alignment accuracy, and achieve the effect of easy operation

Active Publication Date: 2017-01-04
NO 54 INST OF CHINA ELECTRONICS SCI & TECH GRP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Because the electronic compass is greatly affected by the magnetic field, the indicated angle deviates from the real angle, and the local magnetic declination is difficult to obtain accurately, so the calculated communication azimuth will have a large deviation; There are fewer positioning satellites than the Beidou 2nd generation positioning and orientation system, and its positioning accuracy is worse than that of the Beidou 2nd generation positioning and orientation system
The antenna alignment method based on compass positioning has the problem of poor antenna alignment accuracy

Method used

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  • Communication vehicle-mounted antenna alignment system based on Beidou dual-mode terminal
  • Communication vehicle-mounted antenna alignment system based on Beidou dual-mode terminal

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Embodiment Construction

[0020] refer to Figure 1 to Figure 2 , the present invention consists of the first Beidou 2nd generation receiving antenna A1, the second Beidou 2nd generation receiving antenna B2, the Beidou 1st generation antenna 3, the Beidou positioning and orientation instrument 4, the antenna control unit 6, the front antenna 7, the rear antenna 8 and the industrial computer 5 composition; figure 1 It is an electric principle block diagram of the present invention, and the embodiment is according to figure 1 Connect the lines. The front antenna 7 and the rear antenna 8 provide space diversity functions, are installed on the top of the shelter of the communication vehicle station, and are connected to the antenna control unit 6 through cables, and the antenna control unit 6 controls the azimuth and pitch of the front and rear antennas. Beidou 2-generation receiving antenna A1 and Beidou 2-generation receiving antenna B2 are installed on the top side wall of the communication vehicle s...

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Abstract

The invention discloses a communication vehicle-mounted antenna alignment system based on a Beidou dual-mode terminal. The invention relates to the technology of Beidou messages, the Beidou positioning and orientation technology and the technology of scattering link calculation. The system consists of a Beidou second-generation receiving antenna, a Beidou first-generation antenna, a Beidou positioning and orientation device, and an industrial control computer. The system obtains the longitude and latitude of a communication vehicle-mounted station and the azimuth of a vehicle body through Beidou positioning and orientation, calculates a communication azimuth angle through the longitudes and latitudes of communication vehicle-mounted stations at two ends, outputs an antenna control signal to an antenna control unit so as to drive the front and back antennas to face a communication position, and achieves the quick switching-on of a communication system. The alignment angle of the system is not affected by the terrestrial magnetism and magnetic declination, and the system is convenient to operate.

Description

technical field [0001] The invention relates to an antenna alignment system for a vehicle-mounted communication station in the communication field, and has high practical value for a vehicle-mounted communication system that has good mobility and needs to be opened quickly. Background technique [0002] The antenna alignment method of the existing communication vehicle-mounted station is an antenna alignment method based on compass positioning. In this antenna alignment method, the electronic compass indicates the azimuth of the vehicle body at the local station, and the communication azimuth is calculated from the latitude and longitude obtained from the first-generation Beidou satellite and the input local magnetic declination. Because the electronic compass is greatly affected by the magnetic field, the indicated angle deviates from the real angle, and the local magnetic declination is difficult to obtain accurately, so the calculated communication azimuth will have a lar...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01Q21/00H01Q3/08H01Q1/32
CPCH01Q1/32H01Q3/08H01Q21/00
Inventor 王立国朱宏光孟松赵兆李庆好
Owner NO 54 INST OF CHINA ELECTRONICS SCI & TECH GRP
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