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Distance detecting device and method

A distance detection and distance technology, which is applied in the field of short-distance detection devices, can solve the problems of weakened electrical signals, weak reflected light, and inability to measure the distance, and achieve the effect of improving the accuracy of the distance

Active Publication Date: 2012-08-22
PEGATRON
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Problems solved by technology

If the material of the object is a material that easily absorbs light, the reflected light is too weak, and the electrical signal generated will also be weakened, which will affect the measurement accuracy, or even cannot be compared with the reference electrical signal, and the distance cannot be measured

Method used

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  • Distance detecting device and method
  • Distance detecting device and method

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Embodiment Construction

[0019] According to a specific embodiment of the present invention, a distance detection device is provided. In this embodiment, the distance detecting device is capable of detecting the measured distance to the object and determining whether the object is within a predetermined distance. In one embodiment, the distance detection device and method of the present invention are applied to short-distance measurement, but not limited thereto.

[0020] Please refer to figure 1 , figure 1 Shown is a top view of an embodiment of the distance detection device 1 . In fact, the shape of the distance detection device 1 can be determined according to the actual requirements of the product, and can be square, oblate or other different shapes, and is not limited to the embodiment shown.

[0021] Such as figure 1 As shown, the distance detection device 1 includes a transmitter 10 , a first receiver 20 and a second receiver 30 . The first receiver 20 is disposed on one side of the transm...

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Abstract

The invention discloses a distance detecting device and a distance detecting method. The device and the method are used for detecting the distance to be detected to an object. The distance detecting device comprises an emitter, a first receiver and a second receiver, wherein the emitter is used for emitting light rays in the emitting direction, the first receiver is arranged at one side of the emitter and is provided with a first light incidence surface used for receiving light rays reflected by the object to generate first electric signals, and the second receiver is arranged between the emitter and the first receiver and is provided with a second incidence surface used for receiving the light rays reflected by the object to generate second electric signals, wherein the first receiver is provided with a first electric signal distance curve, the second receiver is provided with a second electric signal distance curve, in addition, the first electric signal distance curve has a first wave crest, the second electric signal distance curve has a second wave crest, and the distance corresponding to the first wave crest is greater than the distance corresponding to the second wave crest. The distance detecting device and the distance detecting method have the advantages that whether the object is positioned in the preset distance or not is determined according to the intensity relationship of two electric signals, and the distance measuring accuracy is effectively improved.

Description

technical field [0001] The present invention relates to a distance detection device and method; specifically, the present invention relates to a short-distance detection device and method. Background technique [0002] With the rapid development of science and technology, various instruments with measuring distance function are constantly being introduced. From the most primitive measuring tape to various electronic range finders, these instruments meet the needs of different fields to achieve the purpose of distance measurement. Among them, the electronic ranging method includes electromagnetic ranging and photoelectric ranging. Among the distance measuring instruments mainly based on photoelectric distance measuring methods, the more popular ones are at least infrared distance measuring instruments, laser distance measuring instruments and ultrasonic sensors. Laser range finders and ultrasonic sensors have sensitive range accuracy, but are expensive. Although infrared r...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01S17/08G01S7/481
Inventor 吴国彰
Owner PEGATRON
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