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Driver monitoring device

A monitoring device and driver technology, which can be used in projection devices, printing devices, passenger/cab lighting, etc., and can solve problems such as power consumption

Inactive Publication Date: 2016-11-16
DENSO CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, there is a problem that the driver's face is not always in the same position. If the driver's face is always to be irradiated, it is necessary to use near-infrared LED light to fully illuminate the range where the driver's face may exist. The wide-angle lens spreads the light over a wide area, and as a result, the area where the driver's face does not exist is always irradiated, resulting in wasteful power consumption

Method used

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no. 1 approach

[0017] figure 1 It is a schematic cross-sectional view of a vehicle showing a mounting position of the driver monitoring device according to the present embodiment. For the driver monitoring device 1 of the present embodiment, its housing 11 is placed above the steering column 2, and on the end surface of the housing 11 on the driver's seat side, there are provided light beams that irradiate light toward the driver's seat 3 respectively. A plurality of LED light sources 4 .

[0018] figure 2 It is a perspective view showing the outline of the casing 11 of the driver monitoring device 1 of the first embodiment. The plurality of LED light sources 4 described above are provided so as to be concentrated at two left and right places on the driver's seat side end surface of the housing 11 via the near-infrared camera 5 . The near-infrared camera 5 is an imaging unit that is installed at a position capable of imaging the driver's upper body from the gaps in the spokes of the stee...

no. 2 approach

[0032] In the above-mentioned first embodiment, the housing 11 of the driver monitoring device 1 provided with a plurality of LED light sources 4 is arranged above the steering column 2, but the present disclosure is not limited thereto, and the following second embodiment may be used. In this way, a plurality of LED light sources 4 are arranged in parallel inside the steering wheel 14 . Specifically, as Figure 5As shown, it is only necessary to arrange the lenses 4b in a ring on the inner peripheral side of the steering wheel, and to provide the LED 4a as a light source inside each lens 4b.

[0033] In addition, in this embodiment, the LED light source group 41 that irradiates light toward the area corresponding to the driver's face or eye position needs to be determined according to the rotational position of the steering wheel 4, so the light source in the control device 13 of this embodiment is determined. Section 8 also takes the rotation angle of the steering wheel as ...

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Abstract

A driver monitoring device comprises: a plurality of light sources (4) that irradiate respective lights toward a driver seat; an image capture unit (5) that is disposed at a position allowing the image capture unit to shoot a driver sitting on the driver seat; a driver detection unit (6) that detects, on the basis of the information of an image captured by the image capture unit, the position of the face or the positions of the eyes of the driver; a light source determination unit (7) that determines, on the basis of a result of the detection by the driver detection unit, those ones of the plurality of light sources which can illuminate the area of the face or eyes of the driver; and a light source control unit (8) that controls the light sources such that the light sources determined by the light source determination unit irradiate lights, while the other light sources are put off or dimmed.

Description

technical field [0001] This application claims the priority of Japanese Patent Application No. 2014-154850 filed on July 30, 2014, and uses the content thereof here. [0002] The present disclosure relates to a driver monitoring device mounted on a vehicle. Background technique [0003] Conventionally, there is known a driver monitoring device that captures the driver's face, uses image recognition processing, detects the face orientation and eye opening, and issues a warning / warning to the driver (for example, Patent Document 1). In this driver monitoring device, in the case of using a near-infrared LED as illumination for illuminating the driver's face, the light emitted by the near-infrared LED is made to radiate through a lens in order to illuminate the entire face of the driver. Diffusion etc. [0004] However, there is a problem that the driver's face is not always in the same position. If the driver's face is always to be irradiated, it is necessary to use near-infr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N5/225B60R11/02G03B15/00G03B15/05G06T7/00G08G1/16H04N5/232H04N5/238G06V10/141
CPCG03B15/00G03B15/05G03B29/00G03B35/10H04N5/33G06V20/597G06V10/141H04N23/56B60Q3/283B60Q3/80A61B5/18G03B15/03
Inventor 星屋一路
Owner DENSO CORP