Adjustable range driving system and its driving method and application

Abstract

The invention discloses an adjustable range driving system and method, and application thereof. The adjustable range driving system is configured to drive a laser to allow the laser to normally operate to emit a laser. The adjustable range driving system comprises a power supply unit, a current adjusting unit and a control unit. The power supply unit is suitable for being electrified and connectedwith the laser to supply a working voltage for the laser through the power supply unit. The current adjusting unit is suitable for being electrified and connected with the laser to supple an adjustable range of a working current for the laser through the current adjusting unit. The control unit is electrified and connected with the current adjusting unit, wherein the control unit can control thecurrent adjusting unit to adjust the working current supplied by the current adjusting unit and allow the adjustable range driving system to supply the adjustable range of the working current so as tomeet the work requirement of the laser.

Description

technical field [0001] The present invention relates to a technical field of structured light, and more particularly relates to an adjustable range driving system and its driving method and application. Background technique [0002] Optics has always been the highlight of technological innovation. Although the camera of a smart terminal (such as a smart phone, Ipad, notebook, etc.) has experienced the doubling of pixels and numbers in the 2D era, the optical mechanism of the camera of the smart terminal has always remained at the level of pixels, photosensitivity, etc. two-dimensional layer. With the rapid development of 3D imaging technology, 3D imaging can realize the superposition of pixel depth of field on the basis of two-dimensional imaging, and can obtain the third-dimensional information (geometric data such as size and distance) in the physical world lost by 2D plane imaging. To generate a depth image, which is used to identify the three-dimensional coordinate info...

AI Technical Summary

Problems solved by technology

However, the use of discrete circuits increases the process complexity and manufacturing difficulty of the drive device on the one hand, so that the same drive device usually only has two discrete circuits (that is, it can only provide two different operating currents), which cannot meet The needs of changing scenarios; on the other hand, the switching between different discrete circuits is more complicated and inconvenient to operate, which greatly reduces the practicability and use value of the discrete circuits

[0007] In addition, the power conversion efficiency of the traditional driving device is low and the response time is long. On the one hand, the low power conversion efficiency causes waste of electric energy, which increases the use cost of the traditional driving device. On the other hand, due to the long response time, making The traditional driving device cannot control the laser on and off in time, which not only brings inconvenience to the user, but also further aggravates the waste of energy, and even shortens the service life of the laser

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