CN113340046A - Automatic brightness adjusting system and method for refrigerator illuminating lamp - Google Patents
Automatic brightness adjusting system and method for refrigerator illuminating lamp Download PDFInfo
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- CN113340046A CN113340046A CN202110525045.0A CN202110525045A CN113340046A CN 113340046 A CN113340046 A CN 113340046A CN 202110525045 A CN202110525045 A CN 202110525045A CN 113340046 A CN113340046 A CN 113340046A
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- illuminating lamp
- refrigerator
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- 238000000034 method Methods 0.000 title claims description 16
- 238000005286 illumination Methods 0.000 claims abstract description 26
- 230000003287 optical effect Effects 0.000 claims abstract description 7
- 238000001514 detection method Methods 0.000 claims description 9
- 230000003247 decreasing effect Effects 0.000 claims description 6
- 230000001934 delay Effects 0.000 claims description 4
- 230000001960 triggered effect Effects 0.000 claims description 3
- 239000000126 substance Substances 0.000 claims description 2
- 230000001276 controlling effect Effects 0.000 claims 1
- 230000001105 regulatory effect Effects 0.000 claims 1
- 239000002699 waste material Substances 0.000 abstract description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- 238000007792 addition Methods 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D27/00—Lighting arrangements
- F25D27/005—Lighting arrangements combined with control means
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D2700/00—Means for sensing or measuring; Sensors therefor
- F25D2700/02—Sensors detecting door opening
Abstract
The invention provides an automatic brightness adjusting system for a refrigerator illuminating lamp, which comprises a door opening and closing detector, a photosensitive sensor, an illuminating lamp and a controller, wherein the door opening and closing detector, the photosensitive sensor and the illuminating lamp are all connected with the controller, and the photosensitive sensor is arranged in a refrigerating chamber of the refrigerator; the door opening and closing detector is used for detecting the opening of a refrigerator door body and triggering the photosensitive sensor to work; the photosensitive sensor is used for collecting the brightness in a refrigerating chamber of the refrigerator and converting an optical signal into an electric signal, wherein the electric signal is a voltage signal; the illuminating lamp is used for providing illumination for the refrigerating chamber of the refrigerator; the controller is used for adjusting the output brightness of the illuminating lamp according to the voltage signal of the photosensitive sensor. The invention adopts the photosensitive sensor to detect the internal brightness of the refrigerator, controls the brightness of the illuminating lamp according to the detected actual internal brightness of the refrigerator, can avoid dazzling caused by high brightness at night, and can reduce the brightness of the refrigerator under the condition of good illumination condition in the day so as to avoid electric energy waste.
Description
Technical Field
The invention relates to the technical field of refrigerators, in particular to an automatic brightness adjusting system and method for a refrigerator lighting lamp.
Background
The light of refrigerator on the existing market adopts the light of opening the door basically and lights, and the light of closing the door goes out, and the light is automatic to be opened and light luminance remains unchanged all the time, like this under the good condition of daytime illumination condition, can cause the waste of electric energy because of luminance is high, when using the refrigerator evening, can be dazzling because of luminance is high.
Disclosure of Invention
Aiming at the problems of the existing system, the invention provides a system and a method for automatically adjusting the brightness of a refrigerator illuminating lamp, wherein a plurality of photosensitive sensors are adopted, the voltage value of the sensor delayed by 1s after the door is opened is collected, the average value of the voltage values of the photosensitive sensors is used for representing the internal brightness of the refrigerator, and a controller automatically adjusts the output brightness of the illuminating lamp according to the voltage value of the photosensitive sensors.
The invention adopts the following technical scheme:
an automatic brightness adjusting system for a refrigerator illuminating lamp comprises a door opening and closing detector, a photosensitive sensor, an illuminating lamp and a controller, wherein the door opening and closing detector, the photosensitive sensor and the illuminating lamp are all connected with the controller, and the photosensitive sensor is arranged in a refrigerating chamber of the refrigerator; wherein the content of the first and second substances,
the door opening and closing detector is used for detecting the opening of the refrigerator door body and triggering the photosensitive sensor to work;
the photosensitive sensor is used for collecting the brightness in a refrigerating chamber of the refrigerator and converting an optical signal into an electric signal, wherein the electric signal is a voltage signal;
the illuminating lamp is used for providing illumination for the refrigerating chamber of the refrigerator;
the controller is used for controlling the on-off of the illuminating lamp and adjusting the output brightness of the illuminating lamp according to the voltage signal of the photosensitive sensor.
Further, the photosensitive sensors are provided in at least 2.
Furthermore, the photosensitive sensor collects the brightness in the refrigerating chamber after the opening delay of the refrigerator door body is 1s, and the lighting lamp is not triggered to be opened when the refrigerator door body is opened.
The invention also aims to provide an automatic brightness adjusting method for a refrigerator illuminating lamp, which comprises the following steps:
(1) after a refrigerator door body is opened, the photosensitive sensor delays for 1s to collect brightness data in a refrigerating chamber of the refrigerator, converts an optical signal into a voltage signal and transmits the voltage signal to the controller, and the illuminating lamp is not opened at the moment, namely the brightness collected by the photosensitive sensor is the brightness of the refrigerating chamber under the natural condition;
(2) the controller processes the voltage signals of the photosensitive sensor, calculates the average value of the voltage signals collected by the photosensitive sensor as the detection brightness voltage, and determines the output voltage of the illuminating lamp according to the detection brightness voltage, namely determines the illumination brightness of the illuminating lamp.
Further, the method for determining the illumination brightness of the illumination lamp in the step (2) is as follows: the controller is internally preset with the corresponding relation between the voltage signal of the photosensitive sensor and the duty ratio, receives the detection brightness voltage of the photosensitive sensor, and calculates the output voltage U of the illuminating lamp according to the corresponding relation between the voltage signal of the photosensitive sensor and the duty ratio, wherein the output voltage U of the illuminating lamp is the rated voltage of the illuminating lamp.
Further, the corresponding relation between the voltage signal of the photosensitive sensor and the duty ratio is as follows:
when the voltage signal is larger than or equal to a first set value, the duty ratio is a first constant value, and the first constant value of the duty ratio is 0.2-0.4;
when the voltage signal is larger than the second set value and smaller than the first set value, the duty ratio is increased and then decreased along with the decrease of the voltage signal;
when the voltage signal is less than or equal to the second set value, the duty ratio is 0.
Further, the first set value is larger than the second set value.
The invention has the beneficial effects that:
the invention adopts the photosensitive sensor to detect the internal brightness of the refrigerator, controls the brightness of the illuminating lamp according to the detected actual brightness in the refrigerator, can avoid dazzling at night due to high brightness, can adjust the brightness of the refrigerator according to the actual illumination intensity under the condition of good illumination condition in the day, and can reduce the brightness of the illuminating lamp according to the actual brightness in the refrigerator when the illumination is strong so as to avoid electric energy waste.
Drawings
FIG. 1 is a schematic diagram of an automatic brightness adjustment system for a refrigerator lamp;
fig. 2 is a schematic diagram of the variation of the output voltage of the illumination lamp with the illumination intensity.
Detailed Description
The invention is described in detail below with reference to the accompanying drawings:
referring to fig. 1, an automatic brightness adjusting system for a refrigerator illuminating lamp comprises a door opening and closing detector, a photosensitive sensor, an illuminating lamp and a controller, wherein the door opening and closing detector, the photosensitive sensor and the illuminating lamp are all connected with the controller, and the photosensitive sensor is arranged inside a refrigerating chamber of the refrigerator; wherein:
the door opening and closing detector is used for detecting the opening of the refrigerator door body and triggering the photosensitive sensor to work;
the system comprises a photosensitive sensor, a light source and a controller, wherein the photosensitive sensor is used for collecting the brightness in a refrigerating chamber of the refrigerator, and the photosensitive sensor is used for collecting the brightness of a refrigerator door body after the opening delay of the refrigerator door body is 1s and converting an optical signal into an electric signal, and the electric signal is a voltage signal;
the illuminating lamp is used for providing illumination for the refrigerating chamber of the refrigerator;
the controller is used for controlling the on-off of the illuminating lamp and adjusting the output voltage of the illuminating lamp according to the voltage signal of the photosensitive sensor, and further adjusting the output brightness of the illuminating lamp.
In this embodiment, above-mentioned photosensitive sensor sets up 2, 2 photosensitive sensor sets up in parallel, and every photosensitive sensor all establishes ties a resistance, the resistance sets up on the circuit board of controller, 2 photosensitive sensor sets up at the refrigerator inner wall, and be located the refrigerator inner wall respectively about both ends, can gather the luminance data of different positions, ensure not to cause great error, and average value is got with the voltage signal that 2 photosensitive sensor detected, can obtain more accurate refrigerator internal brightness.
In addition, the photosensitive sensor delays 1s to collect the brightness after the refrigerator door body is opened, the lighting lamp is not triggered to be opened when the refrigerator door body is opened, the brightness collected by the photosensitive sensor is the brightness of the refrigerating chamber under natural conditions, the brightness in the refrigerator can be ensured to be the brightness when a user opens the refrigerator for use, in addition, the photosensitive sensor only collects once light signals, and the brightness in the refrigerator can not be adjusted again according to the brightness change in the refrigerator caused by the brightness of the lighting lamp in the using process of the user.
According to the automatic adjusting system for the brightness of the refrigerator illuminating lamp, the automatic adjusting method for the brightness of the illuminating lamp specifically comprises the following steps:
(1) after a refrigerator door body is opened, the photosensitive sensor delays for 1s to collect brightness data in a refrigerating chamber of the refrigerator, converts an optical signal into a voltage signal and transmits the voltage signal to the controller;
(2) the controller processes the voltage signals of the photosensitive sensor, calculates the average value of the voltage signals collected by the photosensitive sensor as the detection brightness voltage, and determines the output voltage of the illuminating lamp according to the detection brightness voltage, namely determines the illumination brightness of the illuminating lamp.
Specifically, the method for determining the illumination brightness of the illumination lamp in the step (2) includes: the corresponding relation of the voltage signal of presetting photosensitive sensor and duty cycle in the controller, photosensitive sensor gathers the indoor luminance of refrigerator freezer as light signal, and convert light signal into corresponding voltage signal and transmit for the controller, along with illumination intensity reinforcing, photosensitive sensor voltage reduces gradually, then the controller receives photosensitive sensor's detection luminance voltage, and calculate the output voltage U of light according to photosensitive sensor's voltage signal and the corresponding relation of duty cycle, and the output voltage U of light is the rated voltage of light duty cycle.
Referring to table 1, the corresponding relationship between the voltage signal and the duty ratio of the photosensitive sensor is as follows:
when the voltage signal is greater than or equal to a first set value, the duty ratio is a first constant value, the first constant value is 0.2-0.4, and the duty ratio is set to 0.4 in the embodiment;
when the voltage signal is larger than the second set value and smaller than the first set value, the duty ratio is increased and then decreased along with the decrease of the voltage signal;
when the voltage signal is less than or equal to the second set value, the duty ratio is 0.
The first set value is larger than the second set value.
TABLE 1 comparison table of voltage and duty ratio of photosensitive sensor
Specifically, referring to fig. 2, when the voltage signal is greater than or equal to the first set value, the light signal collected by the photosensitive sensor is very weak, the environment where the user is located is at night, and the first constant value of the duty ratio is set to be 0.2-0.4, so that the output voltage of the illuminating lamp is 20% -40% of the rated voltage of the illuminating lamp, the illuminating lamp can provide a darker brightness without stimulating eyes when the user uses the lamp at night and does not turn on the lamp, and the user can be ensured to clearly see articles in the refrigerating chamber of the refrigerator;
when the voltage signal is greater than the second set value and less than the first set value, the duty ratio is increased along with the increase of the illumination intensity and then decreased, when the light signal collected by the photosensitive sensor is weaker, the duty ratio is gradually increased along with the increase of the light signal, namely, the output voltage of the illuminating lamp is gradually increased, brighter brightness can be provided for a user, the brightness is equivalent to the ambient brightness and cannot stimulate the eyes of the user, then when the light signal collected by the photosensitive sensor is stronger, the duty ratio is gradually decreased, when the illumination intensity is stronger, the output voltage of the illuminating lamp is decreased, and the energy consumption can be reduced;
when voltage signal is less than or equal to the second setting value, the light signal that photosensitive sensor gathered is very strong promptly, when illumination intensity reached can provide the illumination in the refrigerator freezer completely, set up the duty cycle to 0, the output voltage of illumination lamp is 0 promptly, and the light is closed, need not open the light and can satisfy the user's demand, can reduce the energy consumption.
The parts not mentioned above can be realized by referring to the prior art.
It is to be understood that the above description is not intended to limit the present invention, and the present invention is not limited to the above examples, and those skilled in the art may make modifications, alterations, additions or substitutions within the spirit and scope of the present invention.
Claims (7)
1. The automatic brightness adjusting system for the refrigerator illuminating lamp is characterized by comprising a door opening and closing detector, a photosensitive sensor, the illuminating lamp and a controller, wherein the door opening and closing detector, the photosensitive sensor and the illuminating lamp are all connected with the controller, and the photosensitive sensor is arranged in a refrigerating chamber of the refrigerator; wherein the content of the first and second substances,
the door opening and closing detector is used for detecting the opening of the refrigerator door body and triggering the photosensitive sensor to work;
the photosensitive sensor is used for collecting the brightness in a refrigerating chamber of the refrigerator and converting an optical signal into an electric signal, wherein the electric signal is a voltage signal;
the illuminating lamp is used for providing illumination for the refrigerating chamber of the refrigerator;
the controller is used for controlling the on-off of the illuminating lamp and adjusting the output brightness of the illuminating lamp according to the voltage signal of the photosensitive sensor.
2. The automatic brightness regulating system for the refrigerator lighting lamp as claimed in claim 1, wherein at least 2 of said photosensitive sensors are provided.
3. The automatic brightness adjusting system for the refrigerator illuminating lamp according to claim 1, wherein the photosensitive sensor collects the brightness in the refrigerating chamber after the opening delay of the refrigerator door body is 1s, and the illumination lamp is not triggered to be opened when the refrigerator door body is opened.
4. The method for automatically adjusting the brightness of the illuminating lamp of the refrigerator according to any one of claims 1 to 3, which is characterized by comprising the following steps:
(1) after a refrigerator door body is opened, the photosensitive sensor delays for 1s to collect brightness data in a refrigerating chamber of the refrigerator, converts an optical signal into a voltage signal and transmits the voltage signal to the controller, the illuminating lamp is not opened at the moment, and the brightness collected by the photosensitive sensor is the brightness of the refrigerating chamber under a natural condition;
(2) the controller processes the voltage signals of the photosensitive sensor, calculates the average value of the voltage signals collected by the photosensitive sensor as the detection brightness voltage, and determines the output voltage of the illuminating lamp according to the detection brightness voltage, namely determines the illumination brightness of the illuminating lamp.
5. The method for automatically adjusting the brightness of an illuminating lamp of a refrigerator according to claim 4, wherein the step (2) of determining the illumination brightness of the illuminating lamp comprises the following steps: the controller is internally preset with the corresponding relation between the voltage signal of the photosensitive sensor and the duty ratio, receives the detection brightness voltage of the photosensitive sensor, and calculates the output voltage U of the illuminating lamp according to the corresponding relation between the voltage signal of the photosensitive sensor and the duty ratio, wherein the output voltage U of the illuminating lamp is the rated voltage of the illuminating lamp.
6. The method for automatically adjusting the brightness of an illuminating lamp of a refrigerator as claimed in claim 5, wherein the corresponding relationship between the voltage signal of the photosensitive sensor and the duty ratio is as follows:
when the voltage signal is larger than or equal to a first set value, the duty ratio is a first constant value, and the first constant value of the duty ratio is 0.2-0.4;
when the voltage signal is larger than the second set value and smaller than the first set value, the duty ratio is increased and then decreased along with the decrease of the voltage signal;
when the voltage signal is less than or equal to the second set value, the duty ratio is 0.
7. The method as claimed in claim 6, wherein the first setting value is greater than the second setting value.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110525045.0A CN113340046A (en) | 2021-05-14 | 2021-05-14 | Automatic brightness adjusting system and method for refrigerator illuminating lamp |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110525045.0A CN113340046A (en) | 2021-05-14 | 2021-05-14 | Automatic brightness adjusting system and method for refrigerator illuminating lamp |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114646184A (en) * | 2022-03-29 | 2022-06-21 | 北京小米移动软件有限公司 | Illumination control method and device of intelligent refrigerator and storage medium |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE29809655U1 (en) * | 1998-05-29 | 1998-12-10 | Steinel Gmbh & Co Kg | Spotlights |
| CN103328912A (en) * | 2011-01-14 | 2013-09-25 | 松下电器产业株式会社 | Refrigerator |
| CN105135811A (en) * | 2015-07-10 | 2015-12-09 | 合肥美的电冰箱有限公司 | Refrigerator and lighting device for refrigerator |
| CN204880958U (en) * | 2015-08-19 | 2015-12-16 | Tcl智能科技（合肥）有限公司 | Refrigerator lighting device and refrigerator |
-
2021
- 2021-05-14 CN CN202110525045.0A patent/CN113340046A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE29809655U1 (en) * | 1998-05-29 | 1998-12-10 | Steinel Gmbh & Co Kg | Spotlights |
| EP0961075A2 (en) * | 1998-05-29 | 1999-12-01 | Steinel GmbH & Co. KG | Projector |
| CN103328912A (en) * | 2011-01-14 | 2013-09-25 | 松下电器产业株式会社 | Refrigerator |
| CN105135811A (en) * | 2015-07-10 | 2015-12-09 | 合肥美的电冰箱有限公司 | Refrigerator and lighting device for refrigerator |
| CN204880958U (en) * | 2015-08-19 | 2015-12-16 | Tcl智能科技（合肥）有限公司 | Refrigerator lighting device and refrigerator |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114646184A (en) * | 2022-03-29 | 2022-06-21 | 北京小米移动软件有限公司 | Illumination control method and device of intelligent refrigerator and storage medium |
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Application publication date: 20210903 |