Dynamic distance measurement system and method
A distance measurement and dynamic technology, applied in the computer field, can solve the problems of high power consumption, high beam power consumption, and difficult volume, and achieve the effect of low power consumption, high resolution, and high power consumption.
Active Publication Date: 2020-02-21
ORADAR TECH CO LTD
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Problems solved by technology
[0005] Among them, the measurement resolution is often affected by the beam emitted by the transmitter. The denser the emitted beam, the higher the resolution. also means higher power consumption
The problem of power consumption is also affected by the transmitter. The higher the power of the beam emitted by the transmitter and the greater the density of the beam, the higher the power consumption, which further limits the wider application of the measurement system in more fields.
Secondly, the volume problem is often caused by complex devices in the emitter or collector. For example, the emitter usually includes a light source and some optical components such as refraction and diffraction, which leads to a large volume and is difficult to integrate
Method used
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[0041] In order to make the technical problems, technical solutions and beneficial effects to be solved by the embodiments of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.
[0042] It should be noted that when an element is referred to as being “fixed” or “disposed on” another element, it may be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element. In addition, the connection can be used for both fixing and circuit communication.
[0043] It is to be understood that the terms "length", "width", "top", "bottom", "front", "rear", "left", ...
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The present invention discloses a dynamic distance measurement system. The system comprises an emitter, a collector and a processing circuit; the emitter is used for emitting a light beam to a targetobject; the emitter comprises a light source unit, a beam splitting unit and a scanning unit, wherein the light source unit is composed of a plurality of sub-light source arrays, the beam splitting unit is used for splitting the light beam, and the scanning unit is used for deflecting the light beam, the plurality of sub-light source arrays being capable of being independently grouped and controlled; the collector is used for collecting at least part of the emitted light beam reflected back by the target object and forming light signals; and the processing circuit is connected with the emitterand the collector. Through the field-of-view regulation and control of the grouped array light sources and the scanning unit, higher-resolution measurement can be realized under relatively low powerconsumption.
Description
technical field [0001] The invention relates to the field of computer technology, in particular to a dynamic distance measuring system and method. Background technique [0002] Using the principle of time of flight (Time of Flight) and the principle of structured light, the distance measurement of the target can be carried out to obtain the depth image containing the depth value of the target, and further based on the depth image, functions such as 3D reconstruction, face recognition, and human-computer interaction can be realized. The distance measurement system has been widely used in consumer electronics, unmanned driving, AR / VR and other fields. [0003] The distance measurement system based on the time-of-flight principle and the principle of structured light generally includes a beam emitter and a collector. The light source in the emitter emits a beam of light to the target space to provide illumination, and the collector receives the beam reflected back by the targe...
Claims
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Login to View More IPC IPC(8): G01S17/08
CPCG01S17/08
Inventor 关健朱亮徐松闫敏
Owner ORADAR TECH CO LTD