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Method and device for monitoring moving objects

A technology of moving objects and monitoring devices, which is applied in the field of sensor applications, can solve the problems of limited sensing distance, inability to obtain vehicle distance and speed, and inability of geomagnetic sensors to detect moving objects, so as to increase the sensing distance and improve signal-to-noise than the effect

Active Publication Date: 2020-06-26
QINGDAO HISENSE MOBILE COMM TECH CO LTD
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Problems solved by technology

[0004] However, since the geomagnetic sensor senses that the magnetic flux change caused by the change of the geomagnetic field decays rapidly with the increase of the distance, in the prior art, the monitoring of the moving object by the geomagnetic sensor is limited by the sensing distance
Usually when the sensing distance exceeds 3 meters, the geomagnetic sensor cannot be applied to the detection of moving objects
[0005] For example, because the geomagnetic sensor sensing is limited by the distance, the highway toll station cannot obtain the distance and speed of the vehicle approaching or away from the toll station, and the carrier-based aircraft cannot obtain the distance and speed of the carrier-based aircraft when it takes off from the deck of the aircraft carrier

Method used

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  • Method and device for monitoring moving objects
  • Method and device for monitoring moving objects
  • Method and device for monitoring moving objects

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Embodiment Construction

[0028] Reference will now be made in detail to exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, the same numerals in different drawings refer to the same or similar elements unless otherwise indicated. The implementations described in the following exemplary examples do not represent all implementations consistent with the present invention. Rather, they are merely examples of apparatuses and methods consistent with aspects of the invention as recited in the appended claims.

[0029] figure 1 It is a flowchart of a method for monitoring a moving object according to an exemplary embodiment. Such as figure 1 As shown, the method includes the following steps:

[0030] In step 110, the monitored moving object is determined through the sensing performed by the geomagnetic sensor itself.

[0031] A geomagnetic sensor refers to a measuring device that indicates the motion st...

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Abstract

The invention discloses a monitoring method for a moving object. The method is applied to monitoring a moving object under the cooperation between a geomagnetic sensor and a signal processing circuit. A service range of entrance of the monitored moving object into the geomagnetic sensor is determined through sensing of the geomagnetic sensor; the motion of the moving object produces magnetic field distribution change, a voltage signal of corresponding variation rate of magnetic flux is acquired through the change of the magnetic flux produced by the magnetic field distribution change, and the voltage signal is input to a signal processing circuit. By the signal processing circuit, a mapping relation containing voltage indicated by a voltage signal is determined by the signal processing circuit, and the distance and the speed of the moving object corresponding to the voltage indicated by the voltage signal are acquired according to the mapping relation.

Description

technical field [0001] The present disclosure relates to the technical field of sensor applications, and in particular to a method and device for monitoring a moving object. Background technique [0002] Geomagnetic sensors are playing an increasingly important role in various aspects such as national defense construction, scientific research, medical care, traditional industry application and transformation, resource exploration and comprehensive utilization, environmental protection, bioengineering, and intelligent traffic control. For the data acquisition in the traffic monitoring system, the geomagnetic sensor is a key component of data acquisition, and its performance plays a decisive role in the accuracy of data acquisition. [0003] For example, geomagnetic sensors can be used for vehicle passing detection and vehicle type identification. The geomagnetic sensor placed on the side of the highway can calculate and distinguish the vehicles passing the sensor, and can al...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01C23/00G01R33/10
CPCG01C23/00G01R33/10
Inventor 张广超张伟
Owner QINGDAO HISENSE MOBILE COMM TECH CO LTD
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