Antenna attitude detection method based on NBIoT and terminal

Abstract

The invention provides an antenna attitude detection method based on NBIoT and a terminal. The method comprises the following steps of acquiring initial magnetic field data of a to-be-detected antennauploaded by measurement equipment; acquiring a temperature value of the measuring equipment, determining a corresponding magnetic field vector compensation coefficient according to the temperature value, and correcting the initial magnetic field data according to the magnetic field vector compensation coefficient to obtain compensated magnetic field data; acquiring a pitch angle and a roll angleof a to-be-detected antenna, and obtaining an inclination compensation value according to the pitch angle, the roll angle and the compensated magnetic field data; calculating the azimuth angle of theantenna according to the compensated magnetic field data and the inclination compensation value; a pitch angle, a roll angle and an azimuth angle being sent through the NBIoT; The method is advantagedin that the influence of the temperature on the measured magnetic field is considered during angle calculation, the magnetic field is corrected, each angle is calculated according to the corrected magnetic field, and attitude measurement accuracy is improved.

Description

technical field [0001] The present invention relates to the field of antenna detection, in particular to an NBIoT-based antenna attitude detection method and a terminal. Background technique [0002] The physical parameters of the antenna in the base station include pitch angle, roll angle, azimuth angle, antenna height, position, etc., and the environmental parameters include temperature, humidity, etc. These parameters have a decisive influence on the electromagnetic coverage of the base station. [0003] The correctness of antenna parameters is of great significance in network planning and network optimization, so how to measure antenna parameters and obtain antenna parameters with high correctness is an important proposition; currently, measurement personnel use compass, read Take the data to get the azimuth angle, pitch angle, roll angle and other data of the communication base station antenna. This measurement method is to manually determine the angle information. The...

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Problems solved by technology

[0003] The correctness of antenna parameters is of great significance in network planning and network optimization, so how to measure and obtain antenna parameters to obtain antenna parameters with high correctness is An important proposition; currently, surveyors usually use a compass to read the data to obtain the azimuth, pitch angle, roll angle and other data of the communication base station antenna. The existence of subjective factors in manual measurement causes errors in the measurement angle and may cause large errors; and the engineering personnel need to go to the tower for measurement, and there is a certain danger every time the tower is measured, and the cost of going up the tower is high, and manual going up the tower is also expensive. The purpose of real-time monitoring of antenna movement attitude cannot be achieved;

[0004] In the patent document CN201810158277, a posture monitoring method is provided, which uses the antenna posture tracker to track the antenna posture, the positioning system to locate the antenna position, and the The electronic compass measures the azimuth angle and obtains the pitch angle through the gyroscope. The azimuth angle is corrected and compensated by the tilt compensation algorithm; but because the magnetometer adopts pressure-rent type and capacitive working mode, when the ambient temperature changes greatly, the resistance A certain change in the resistance value of the magnetic field will lead to a certain change in the original data of the magnetic field. The magnetic field data has not been temperature compensated, and it will appear in the case of no movement. Due to the large temperature difference in winter and summer, the angle offset is too large. The problem is that the monitoring angle is abnormal

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