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Light metering compensation device and light metering compensation method thereof

A technology of photometric compensation and compensation coefficient, applied in measurement devices, photometry, optical radiation measurement, etc., can solve the problems of deviation of external light intensity measurement value, cumbersome development work, etc., and achieve the effect of improving accuracy

Active Publication Date: 2014-12-03
GUANGDONG MIDEA GRP WUHU REFRIGERATING EQUIP CO LTD
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Problems solved by technology

[0004] The purpose of the present invention is to provide a light metering compensation device, aiming at solving the cumbersome development work caused by adjusting the compensation coefficient in the preset compensation module when the light intensity measuring device in the prior art is installed on panels of different styles and due to different The technical problem that the measurement value of the external light intensity deviates due to the color difference of batches of panels

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  • Light metering compensation device and light metering compensation method thereof
  • Light metering compensation device and light metering compensation method thereof
  • Light metering compensation device and light metering compensation method thereof

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[0027] In order to make the object, technical solution and advantages 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.

[0028] In homogeneous materials, light attenuation is linear, and its attenuation formula is:

[0029] I=I 0 ·EXP(-μd) (1)

[0030] Among them, I is the light intensity after passing through the medium; I 0 is the light intensity before passing through the medium; EXP is an exponential function with the natural constant e as the base; μ is the attenuation coefficient of light; d is the thickness of the medium.

[0031] The influencing factors of the light attenuation coefficient μ include the atomic number of the medium, the density of the medium, and the energy of light. For light with the sam...

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Abstract

The invention belongs to the field of light control devices, particularly relates to a light metering compensation device and method, and aims to solve the technical problems that the development work is tedious due to the fact that a coefficient is required to be adjusted and compensated in a preset compensation module when a light intensity measurer is mounted on different types of panels in the prior art and deviation occurs to a measured value of external light intensity due to chromatic aberration in different batches of panels. A light source generator generates exciting light, first attenuation light is formed after the exciting light passes through a light barrier board, the light intensity measurer measures light intensity of the first attenuation light, a controller computes the light intensity of the exciting light and the light intensity of the first attenuation light to obtain a compensation coefficient, external light passes through a light transmitting panel to form second attenuation light, the light intensity measurer measures light intensity of the second attenuation light, the controller computes the light intensity of the second attenuation light and the compensation coefficient to obtain light intensity of the external light, and the light intensity of the external light serves as an anticipation condition of an equipment control strategy. According to the scheme, the light intensity of the external light can be accurately obtained, and equipment can implement control strategies according to different environments.

Description

technical field [0001] The invention belongs to the field of light control devices, and in particular relates to a light measurement compensation device and a light measurement compensation method. Background technique [0002] With the development of intelligence, more and more devices use light intensity measuring devices to detect the light intensity of external light to judge the use environment, such as sunny, cloudy, day, night, etc., and implement different controls according to different environments Strategy. For example, the light intensity measuring device applied to the air conditioner detects the light intensity of the external environment through the light intensity measuring device. The air conditioner implements different control strategies, changes the cooling mode and air supply mode or adjusts the brightness of the screen light, and realizes the intelligence of the air conditioner. change. [0003] However, in the devices in the prior art, the entire out...

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Application Information

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IPC IPC(8): G01J1/00
Inventor 程德凯吕艳红
Owner GUANGDONG MIDEA GRP WUHU REFRIGERATING EQUIP CO LTD
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