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Light supplement control circuit, DMS camera, fatigue driving monitoring system and automobile

A technology for controlling circuits and cameras, applied in the automotive field, can solve the problems of overheating, red dots on the light-transmitting plate of the camera, and IR-LED red bursts, etc., and achieves the effect of reducing red bursts, reducing heat, and solving large heat generation.

Pending Publication Date: 2020-07-14
合创汽车科技有限公司
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Problems solved by technology

[0003] During the implementation process, the inventors found that there are at least the following problems in the traditional technology: the current DMS camera adopts the combination of black and white imaging + infrared IR-LED (Infrared LED) supplementary light, but due to the "red storm" of the IR-LED Phenomenon, the light-transmitting panel of the camera will appear red spots and heat problems

Method used

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  • Light supplement control circuit, DMS camera, fatigue driving monitoring system and automobile
  • Light supplement control circuit, DMS camera, fatigue driving monitoring system and automobile
  • Light supplement control circuit, DMS camera, fatigue driving monitoring system and automobile

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Embodiment Construction

[0037] In order to facilitate the understanding of the present application, the present application will be described more fully below with reference to the relevant drawings. A preferred embodiment of the application is shown in the drawings. However, the present application can be embodied in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of this application more thorough and comprehensive.

[0038] It should be noted that when an element is considered to be "connected" to another element, it may be directly connected to and integrally integrated with the other element, or there may be an intervening element at the same time. The terms "connected to", "at one end", "at the other end" and similar expressions are used herein for the purpose of description only.

[0039] Unless otherwise defined, all technical and scientific terms used herein have the same meani...

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Abstract

The invention relates to a light supplement control circuit, a DMS camera, a fatigue driving monitoring system and an automobile. The light supplement control circuit comprises an infrared light supplement lamp group, a switch circuit, a power supply input circuit and a sequential control input circuit. An input end of the sequential control input circuit is used for being connected with a DMS camera main control chip. And the time sequence control input circuit controls the on-off of the MOS tube according to the received time sequence signal transmitted by the main control chip, and therefore the working time sequence of the infrared light supplementing lamp group is kept synchronous with the exposure time sequence of the DMS camera. Based on the light supplement control circuit disclosed in the application, the infrared light supplementing lamp group and the DMS camera synchronously execute a time-sharing working mechanism, a segmented working time sequence strategy is realized, thedefects of high heat generation and obvious red storm are overcome, and the effects of reducing heat generation and weakening red storm are achieved.

Description

technical field [0001] The present application relates to the technical field of automotive electronics, in particular to a supplementary light control circuit, a DMS camera, a fatigue driving monitoring system and an automobile. Background technique [0002] In recent years, with the popularization of cars and the improvement of car safety awareness, the functions of driver fatigue driving monitoring reminder and control intervention have also developed. At present, the fatigue driving monitoring camera, DMS (Driver Monitor Status, anti-fatigue warning system) camera is used to collect the facial features of the user, and then the fatigue driving monitoring result is obtained after calculation by the fatigue algorithm. [0003] During the implementation process, the inventors found that there are at least the following problems in the traditional technology: the current DMS camera adopts the combination of black and white imaging + infrared IR-LED (Infrared LED) supplementa...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N5/225H04N5/235B60R1/12G08B21/06
CPCG08B21/06B60R1/12B60R2300/10H04N23/55H04N23/73
Inventor 张启明柯智皓文滨
Owner 合创汽车科技有限公司
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