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Method for accurately detecting rotation through gyroscope and magnetic field sensor

A technology of magnetic field sensors and gyroscopes, applied in instruments, navigation through speed/acceleration measurement, and measuring devices, etc., can solve problems such as adverse effects on safety and complex layout, and achieve long mechanical life and easy installation and maintenance.

Pending Publication Date: 2019-08-02
大器物联科技(广州)有限公司
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Problems solved by technology

This method requires certain modifications to the structure and wiring, the layout is more complicated and has adverse effects on safety

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  • Method for accurately detecting rotation through gyroscope and magnetic field sensor

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Embodiment Construction

[0014] The present invention will be further described below in conjunction with accompanying drawing, and the principle of this method is very clear to those skilled in the art. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0015] The magnetic field sensor located on the surface of the earth can detect the ubiquitous geomagnetic field. Since the geomagnetic field has an exact direction (from the magnetic north pole to the magnetic south pole), the projection vector of the magnetic field on the plane parallel to the ground where the sensor is located can be used for Detects the slewing of tower cranes. However, due to the weak strength of the geomagnetism, it is easy to be disturbed. Therefore, an additional gyroscope is introduced in this embodiment to jointly correct the magnetic field data to eliminate interference.

[0016] Preferably, the time interval between mul...

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Abstract

The invention relates to the technical field of tower crane detection, in particular to a method for accurately detecting the gyration through a gyroscope and a magnetic field sensor. The gyroscope and the magnetic field sensor which are fixed to a tower crane are simultaneously arranged in the tower crane, the gyroscope and the magnetic field sensor are respectively in signal connection with a processor, and the processor is used for sampling monitoring data of the gyroscope and the magnetic field sensor and correcting the detection data of the magnetic field sensor through the detection dataof the gyroscope, so as to obtain the rotation angle of the tower crane. Compared with the prior art, the method has the advantages that the magnetic field sensor and gyroscope data mutual correctionmode is used, the problem that a single gyroscope statically drifts a single geomagnetic sensor and is easily interfered by the environment is avoided, a stable pointing angle can be output, the existing engineering machine does not need to be modified, detection equipment is installed in the tower crane, installation and maintenance are convenient, and the service life of the machine is long.

Description

technical field [0001] The invention relates to the technical field of tower crane detection, in particular to a method for accurately detecting rotation through a gyroscope and a magnetic field sensor. Background technique [0002] The way to detect the rotation of the boom in the existing tower crane system is to install an additional encoder or potentiometer at the gear of the swivel joint to read the rotation of the top of the entire tower crane including the boom by means of mechanical contact Signal. This method requires certain modifications to the structure and wiring, and the layout is relatively complicated and has an adverse effect on safety. Therefore, it is necessary to design a novel method for accurately detecting rotation through gyroscopes and magnetic field sensors. Contents of the invention [0003] The purpose of the present invention is to solve the deficiencies of the prior art, to provide a method for accurately detecting rotation through a gyrosco...

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Application Information

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IPC IPC(8): G01C21/08G01C21/18G01B7/30G01B21/22
CPCG01C21/08G01C21/18G01B7/30G01B21/22Y02A90/30
Inventor 朴永焕秦天
Owner 大器物联科技(广州)有限公司
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