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A moving object recognition method based on ultrasonic sensor

A moving object, ultrasonic technology, applied in the field of identification, can solve the problem that the transmitter object cannot obtain the position and motion information, and can only be applied to the human body and other objects that voluntarily carry the transmitter, so as to avoid danger and increase perception effect of ability

Active Publication Date: 2018-12-28
航电通(宁波)防务科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The disadvantage of this invention is that the transmitter needs to be fixed on the identified object, so it can only be applied to objects such as the human body that voluntarily carry the transmitter. For objects that cannot be installed with the transmitter, such as unknown obstacles in the air, no other Location and Movement Information

Method used

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  • A moving object recognition method based on ultrasonic sensor
  • A moving object recognition method based on ultrasonic sensor
  • A moving object recognition method based on ultrasonic sensor

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] The structure of the position identification device adopted in Embodiment 1, such as figure 2 As shown, including 1 ultrasonic transmitter and 3 ultrasonic receivers. figure 2 Among them, 101 is an ultrasonic transmitter, 102, 103, 104 are ultrasonic receivers; 101, 102, 103, 104 are fixed on a plane. 103 , 101 , and 104 are located on the same straight line, and the line connecting 103 and 104 is perpendicular to the line connecting 102 and 101 . The distances between 101 and 103 and 104 are equal, 5 cm respectively; the distance between 101 and 102 is 5 cm. In practical applications, the distances between the ultrasonic transmitter and the three ultrasonic receivers can be equal or unequal. 101 The ultrasonic transmitter is connected to the ultrasonic transmitting circuit, which can send out ultrasonic waves with a fixed frequency. The ultrasonic transmitting circuit is a general ultrasonic transmitting circuit; converted to a voltage signal. In this embodiment,...

Embodiment 2

[0041] The structure of the position recognition device adopted in Embodiment 2, such as Figure 4 As shown, including 1 ultrasonic transmitter and 2 ultrasonic receivers. Figure 4 Among them, 201 is an ultrasonic transmitter, 202 is an ultrasonic receiver, and 203 is another ultrasonic receiver; 201, 202, and 203 are on the same straight line. In this embodiment, the distance between the ultrasonic transmitter 201 and the ultrasonic receiver 202 is 5 cm, and the distance between the ultrasonic transmitter 201 and the ultrasonic receiver 203 is also 5 cm. In practical applications, the distance between the ultrasonic transmitter 201 and the ultrasonic receiver 202 and the distance between the ultrasonic receiver 203 may be different. The principle of embodiment 2 is similar to that of embodiment 1, but the position information of the space object cannot be obtained accurately, and the position range of the space object can only be obtained through calculation. This embodime...

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PUM

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Abstract

The invention provides a moving object identification method based on an ultrasonic sensor, belonging to the technical field of the identification. The method comprises the following steps: installing a location identification apparatus, comprising an ultrasonic transmitter and an ultrasonic receiver, on a measurement main body, and allowing an ultrasonic transmitting end and an ultrasonic receiving end to face a detection direction; during measurement, allowing the measurement main body to move relative to an object to be identified, transmitting, by the ultrasonic transmitter, ultrasonic waves, and receiving, by the ultrasonic receiver, the ultrasonic waves returned by the object to be identified; obtaining, by the measurement main body, a distance between the object to be identified and each ultrasonic receiver by measuring a time difference between the moment when the transmitter transmits the ultrasonic waves and the moment when the ultrasonic receiver receives the ultrasonic waves according to information of the acquired transmitted ultrasonic wave and information of the received ultrasonic wave and according to a propagation speed of the ultrasonic waves; and calculating to obtain an area in which the object to be identified is located according to the relative location of each ultrasonic receiver. By adopting the method, the moving state of the object to be identified can be identified without installing any device on the object.

Description

technical field [0001] The invention belongs to the technical field of recognition, and in particular relates to a method for recognizing a moving object based on an ultrasonic sensor. Background technique [0002] With the continuous advancement of sensor technology, there are more and more types of sensors used to identify the spatial position and movement of objects. By enhancing the recognition of objects in the environment, the sensor can enhance the robot's perception of the environment, which is beneficial for the robot to avoid obstacles and possible dangerous objects. In addition to being applied to robots, sensors can also be used for human gesture recognition. [0003] Existing identification technologies usually include infrared sensors, optical sensors, etc. Optical sensors have high precision, but they cannot be applied to the identification of transparent media, such as glass, mirrors, etc. Moreover, the existing optical sensor is based on laser technology,...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01S15/93
CPCG01S15/93
Inventor 王滨邵萌郭璇
Owner 航电通(宁波)防务科技有限公司