Ultrasonic sensor of object

An ultrasonic and sensor technology, applied in the field of ultrasonic sensors for objects, can solve problems such as high cost, uncertainty, and weak echoes that cannot be detected

Inactive Publication Date: 2008-07-16
张周新
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  • Abstract
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  • Application Information

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Problems solved by technology

[0002] For moving objects—for example, a robot needs to measure the distance from the robot to walls or obstacles during the movement to determine the orientation of the robot itself. In actual use, non-contact sensors such as ultrasonic or photoelectric sensors are often used, which need to be installed around the appearance of the robot. There are many, but due to the high cost of non-contact sensors such as ultrasonic waves, the patent application specification of CN200410014702.1 describes a solution that saves the most sensors, only one set of ultrasonic sensors that integrate transceivers towards a pyramidal reflector, After transmitting the ultrasonic signal, the echoes returned by the robot in the four direction...

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  • Ultrasonic sensor of object

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Embodiment Construction

[0012] Fix an ultrasonic probe 2 integrating transceiver and a "V"-shaped reflector 1 with two reflective surfaces arranged horizontally on the object. Body 1. The reflective surface is generally rectangular, smooth in itself, flat or concave or convex. A complete ranging system can include two sets of such ultrasonic sensors. The reflective surface of one set of sensors is projected in the left and right directions for measuring the left and right directions. The reflective surface of the set of sensors is projected in the front-back direction for measuring the front-back direction.

[0013] The front and rear and left and right sets of ultrasonic sensors can also share a set of post-circuits for ultrasonic ranging (including power components, operational amplifiers, etc.), so that one set works first, and the other set works later. However, a set of two-choice control circuit is required.

[0014] In some special occasions, if the object only needs to measure a set of dist...

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Abstract

The invention relates to an ultrasonic sensor of objects, and two sensors are arranged on an object with one sensor used in the front and back direction while the other sensor used in the left and right direction; each sensor comprises an ultrasonic probe with integrated sending and receiving and a reflector with two intersectant reflecting surfaces which are arranged horizontally and form a shape of V, the whole reflecting surfaces of the reflector both take an angle of 45 degrees with the horizontal plane, and the ultrasonic probe faces to the reflector. The reflecting surface projection of one sensor lies along the left and right direction and the reflecting surface projection of the other sensor lies in the front and back direction.

Description

Technical field: [0001] The invention relates to an object ultrasonic sensor, which is mainly used for sensing obstacles or distance measurement and positioning of electromechanical objects such as robots during the moving process. Background technique: [0002] For moving objects—for example, a robot needs to measure the distance from the robot to walls or obstacles during the movement to determine the orientation of the robot itself. In actual use, non-contact sensors such as ultrasonic or photoelectric sensors are often used, which need to be installed around the appearance of the robot. There are many, but due to the high cost of non-contact sensors such as ultrasonic waves, the patent application specification of CN200410014702.1 describes a solution that saves the most sensors, only one set of ultrasonic sensors that integrate transceivers towards a pyramidal reflector, After transmitting the ultrasonic signal, the echoes returned by the robot in the four directions of...

Claims

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Application Information

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IPC IPC(8): G01S15/06G01S15/08
Inventor 张周新
Owner 张周新
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