Self-checking circuit, self-checking method and self-checking system for photosensitive element as well as air conditioner

A technology of photosensitive devices and self-test circuits, applied in heating and ventilation control systems, heating and ventilation safety systems, instruments, etc., can solve problems such as lowering equipment reliability, low brightness, and violation of intelligent design, and achieve simple processing, Avoid false control and facilitate the effect of controlling the process

Inactive Publication Date: 2015-04-08
GD MIDEA AIR-CONDITIONING EQUIP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] However, the working condition of the photosensitive sensor has not been tested in the related art, which has caused many problems that reduce the reliability of the equipment, such as, when the photosensitive sensor fails, the brightness of the default ambient light is low, and the control equipment is in a long time Low brightness working mode, the device is prone to malfunction and violates the original intention of its intelligent design

Method used

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  • Self-checking circuit, self-checking method and self-checking system for photosensitive element as well as air conditioner
  • Self-checking circuit, self-checking method and self-checking system for photosensitive element as well as air conditioner
  • Self-checking circuit, self-checking method and self-checking system for photosensitive element as well as air conditioner

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Embodiment 1

[0066] like figure 1 As shown, the photosensitive device self-test circuit 100 according to the embodiment of the present invention includes: a photosensitive sensor 101; A detection light source 102 is provided to the photosensitive sensor 101 in the middle; a microprocessor 103, connected to the light source 102, is used to realize the self-test process of the photosensitive device by controlling the light source 102 to be turned on.

[0067] According to the self-checking circuit of the photosensitive device according to the embodiment of the present invention, by arranging the light source 102 in the photosensitive device to provide the detection light source 102 to the photosensitive sensor 101, the self-checking process of the photosensitive device is realized, so as to conveniently judge whether the photosensitive device is working effectively, and in addition , to judge the reliability of the photosensitive device in time, so that the microprocessor 103 can accurately ...

Embodiment 2

[0086] like figure 2 As shown, the photosensitive device self-checking circuit according to the embodiment of the present invention includes: fixing the light source 102 and the photosensitive sensor 101 on the PCB substrate 201, after the light source 102 is turned on, the light is reflected to the photosensitive sensor 101 through the panel 202, wherein, in order to In order to reduce the loss during the operation of the light source, an anti-reflection coating can be provided in the reflection area of ​​the panel 202. Specifically, the anti-reflection processing is performed for the wavelength band of the light source, without affecting the sensing of the ambient light outside the panel 202 by the photosensor 101. In addition, in order to enhance the photosensitive characteristics of the photosensitive sensor 101, the skirt of the photosensitive sensor 101 is increased, or the height of the fixing base of the photosensitive sensor 101 is increased.

Embodiment 3

[0088] like image 3 As shown, the photosensitive device self-checking circuit according to the embodiment of the present invention includes: taking the microprocessor 103 as the core component, controlling the opening and closing of the light source 102 through the first switching device 106, and the other side of the first switching device is connected to to the resistor R2 and the power supply 105, wherein the power supply 105 is also used to provide a working voltage to the second switching device 108 and the photosensor 101, and the second switching device 108 is used to control the working state of the functional circuit 109 according to the instruction of the microprocessor 103, Among them, R1 and R3 are used to perform voltage division processing on the output voltage of the photosensitive sensor 101, and send the voltage after voltage division processing to the microprocessor for calculation and control.

[0089] like Figure 4 to Figure 5 As shown, the photosensitiv...

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Abstract

The invention provides a self-checking circuit for a photosensitive element. The self-checking circuit comprises a photosensitive sensor, a light source and a micro processor, wherein the light source is arranged within a photosensitive range of the photosensitive sensor and used for providing a detecting light source for the photosensitive sensor in a self-checking process of the photosensitive sensor; the micro processor is connected to the light source and used for controlling the light source to switch on for realizing the self-checking process of the photosensitive element. The invention further provides a self-checking method and a self-checking system for a photosensitive element as well as an air conditioner. According to the technical scheme adopted by the invention, the self-checking process of the photosensitive element is realized so as to conveniently judge whether the photosensitive element effectively works or not; besides, the reliability of the photosensitive element is timely judged, so that the micro processor can be used for accurately obtaining a test signal of the photosensitive element and accurately controlling a functional module.

Description

technical field [0001] The invention relates to the field of photosensitive devices, in particular, to a photosensitive device self-test circuit, a photosensitive device self-test method, a photosensitive device self-test system and an air conditioner Background technique [0002] In the related art, photosensitive sensors are widely used in the fields of home appliances, terminal equipment, environmental detection technology and energy regeneration technology due to their simple testing principle, low production cost and high signal compatibility. Among them, photosensitive sensors are used in home appliances. In the equipment, it is mainly the intelligent control process of the functional circuit through the processing results of the detection results after the detection results are sent to the microprocessor after the ambient light is detected. [0003] However, in the related art, the working condition of the photosensitive sensor is not tested, which leads to many probl...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01D18/00F24F11/02
Inventor 邹晓亚郭新生
Owner GD MIDEA AIR-CONDITIONING EQUIP CO LTD
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