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Method and device for determining control signal

A technology for controlling signals and equipment, applied in photometry, method of comparing with reference electrical parameters, image communication, etc., can solve the problem that the function of near-field sensor is no longer reliable, and achieve the effect of reducing cost and simplifying design

Active Publication Date: 2016-02-24
HELLA KG HUECK & CO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

If the inclination of the windshield extends in a flat and steep manner, the function of the near-field sensor is no longer reliable, because it no longer detects the defined near-field and light conditions in front of the vehicle, typically no longer detects the light conditions for this field light conditions

Method used

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  • Method and device for determining control signal
  • Method and device for determining control signal
  • Method and device for determining control signal

Examples

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Embodiment Construction

[0024]figure 1 An example of measurements during the day is shown, where the measurement curve 1 recorded by the front light sensor, the measurement curve 2 recorded by the ambient light sensor and the measurement curve 3 determined by the sun sensor are plotted over time. A "daytime" lighting state is shown during driving across a bridge, the "daytime" lighting state being defined for a lighting intensity between 1200 and 25400 lux. In particular, the rough moment of driving across the bridge can be identified by the sharply decreasing measurement curve. Due to the additional measurement range of the forward light sensor oriented in a forward-facing manner, the measurement curve 1 of said sensor exhibits a temporarily offset drop compared to measurement curves 2 and 3, whose detection range falls directly on the motorized in the surroundings of the vehicle. The time difference signal ΔT can be determined by means of this temporary offset, the magnitude of which varies accord...

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Abstract

In a method for determining a control signal from measured ambient light conditions for subsequent processing by at least one electronic component, in particular for controlling an imaging unit of an image output device, the current is detected by a plurality of light sensors light conditions, output measurement signals according to the intensity of the light conditions recorded by the light sensors, and then the measurement signals of the individual light sensors are combined into at least one control signal according to at least one predefined ratio. The control signal is adjusted taking into account the orientation of at least one light sensor and then outputting the control signal.

Description

technical field [0001] The invention relates to a method for determining a control signal for subsequent processing by at least one electronic component, in particular for controlling an imaging unit of an image output device, based on measured ambient light conditions. The invention further relates to a device for determining control signals for electronic components, in particular for an imaging unit of an image output device, comprising at least one light sensor and comprising an evaluation unit. Background technique [0002] Methods and apparatuses of the previously known type are commonly used to provide control signals to imaging units of image output devices, such as imagers of head-up displays in motor vehicles. For example, the brightness of the image output device can be matched to the light conditions existing outside the vehicle by means of a control signal. As a result, sufficient readability or recognizability of the image data usually projected onto the winds...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G09G5/10G09G5/02G02B27/01G01J1/00
CPCG01J1/32G02B27/01G02B2027/0118G03B21/2053H04N5/58H04N21/42202H04N21/4318
Inventor T·尼曼A·施拉曼C·尼切
Owner HELLA KG HUECK & CO