Title:
SMART MAGNETIC SENSOR AND VEHICLE DETECTION METHOD BASED ON SMART MAGNETIC SENSOR
Document Type and Number:
WIPO Patent Application WO/2017/012469
Kind Code:
A1
Abstract:
A smart magnetic sensor and a vehicle detection method based on a smart magnetic sensor. The smart magnetic sensor comprises an MCU circuit, a GMI detection unit, a compensation circuit, a detection circuit, and a management circuit. The GMI detection unit is used for detecting a magnetic signal. The compensation circuit is used for magnetically compensating the magnetic signal detected by the GMI detection unit. The detection circuit is used for detecting an environmental magnetic field where the GMI detection unit is located. The management circuit is used for amplifying the magnetic signal detected by the GMI detection unit, and managing the compensation circuit and the detection circuit. The MCU circuit is used for controlling the management circuit, so as to achieve management control of the management circuit over the GMI detection unit, the compensation circuit, and the detection circuit. The smart magnetic sensor can be applied to vehicle detection, detects a vehicle disturbance geomagnetic field anomaly signal of a parking space, and obtains vehicle information about the parking space.
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Inventors:
YUAN LI (CN)
Application Number:
PCT/CN2016/088790
Publication Date:
January 26, 2017
Filing Date:
July 06, 2016
Export Citation:
Assignee:
YUAN LI (CN)
International Classes:
G01R33/09
Foreign References:
| CN205080248U | 2016-03-09 | |||
| CN104391331A | 2015-03-04 | |||
| EP1095288B1 | 2008-04-16 | |||
| CN101738587A | 2010-06-16 | |||
| CN203310984U | 2013-11-27 |
Other References:
WANG, ZESHENG: "Study on Terrestrial Magnetism Sensors Based on Amorphous Material", ELECTRONIC TECHNOLOGY & INFORMATION SCIENCE , CHINA MASTER'S THESES FULL-TEXT DATABASE, 15 April 2012 (2012-04-15), pages 27, 28, 31 - 32 and 33-36, ISSN: 1674-0246
SHAN, XIAOFENG: "Study of High-Precision Magnetic Sensor Base on Amorphous Wire Giant-Magneto-Impedance Effect", ELECTRONIC TECHNOLOGY & INFORMATION SCIENCE , CHINA MASTER'S THESES FULL-TEXT DATABASE, 15 October 2010 (2010-10-15), pages 14 - 17 and 30-34, ISSN: 1674-0246
JIANG, YANWEI ET AL.: "Applications and Progress in the Study of Giant Magneto Impedance Effect in Soft Magnetic Amorphous Wires & GMI Sensors", CHINESE JOURNAL OF ELECTRON DEVICES, vol. 31, no. 4, 31 August 2008 (2008-08-31), pages 1127, ISSN: 1005-9490
SHAN, XIAOFENG: "Study of High-Precision Magnetic Sensor Base on Amorphous Wire Giant-Magneto-Impedance Effect", ELECTRONIC TECHNOLOGY & INFORMATION SCIENCE , CHINA MASTER'S THESES FULL-TEXT DATABASE, 15 October 2010 (2010-10-15), pages 14 - 17 and 30-34, ISSN: 1674-0246
JIANG, YANWEI ET AL.: "Applications and Progress in the Study of Giant Magneto Impedance Effect in Soft Magnetic Amorphous Wires & GMI Sensors", CHINESE JOURNAL OF ELECTRON DEVICES, vol. 31, no. 4, 31 August 2008 (2008-08-31), pages 1127, ISSN: 1005-9490
Attorney, Agent or Firm:
BEIJING YINGTUO INTELLECTUAL PROPERTY LAWFIRM (CN)
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