阅读说明：本技术 一种冰箱照明控制系统及其控制方法 (Refrigerator illumination control system and control method thereof ) 是由 周扬 李昱兵 于 2020-04-27 设计创作，主要内容包括：本发明公开了一种冰箱照明控制系统及其控制方法,涉及冰箱照明控制技术领域。本发明包括冰箱门开关、人体感应设备、内部照明灯、外部照明灯以及照明驱动模块；照明驱动模块,用于根据用户信号控制所述外部照明灯的亮灭；照明驱动模块,用于根据开关信号以及用户信号控制所述内部照明灯的亮灭以及亮度。本发明打开内部照明灯时,通过调整照明驱动模块的输出占空比从1％-50％递增点亮内部照明灯；保证眼睛有时间缓冲适应灯亮,避免昏暗情况下,眼睛直接跳闪到高亮度情况下,导致眼睛不适应、头脑眩晕等不适情况的出现,保护眼睛。(The invention discloses a refrigerator illumination control system and a control method thereof, and relates to the technical field of refrigerator illumination control. The invention comprises a refrigerator door switch, a human body induction device, an internal illuminating lamp, an external illuminating lamp and an illumination driving module; the illumination driving module is used for controlling the on and off of the external illumination lamp according to a user signal; and the illumination driving module is used for controlling the on-off and the brightness of the internal illumination lamp according to the switch signal and the user signal. When the internal illuminating lamp is turned on, the internal illuminating lamp is gradually lightened from 1 to 50 percent by adjusting the output duty ratio of the illumination driving module; guarantee that eyes have time buffering adaptation lamp and shine, avoid under the dim condition, eyes directly jump to under the high brightness condition, lead to the appearance of the uncomfortable condition such as eyes are not suitable, head and brain vertigo, protection eyes.)

1. A refrigerator lighting control system, comprising: the refrigerator comprises a refrigerator door switch, a human body induction device, an internal illuminating lamp, an external illuminating lamp and an illumination driving module;

the refrigerator door switch is used for controlling the opening and closing of the refrigerator door and transmitting a switch signal to the illumination driving module;

the human body sensing equipment is used for detecting whether a user is in front of the refrigerator door or not and transmitting a user signal to the lighting driving module;

the illumination driving module is used for controlling the on and off of the external illumination lamp according to a user signal; and the illumination driving module is used for controlling the on-off and the brightness of the internal illumination lamp according to the switch signal and the user signal.

2. The lighting control system of claim 1, wherein the human body sensing device is a human body infrared sensor.

3. The lighting control system of claim 1 or 2, further comprising a setting module; the setting module is connected with the lighting driving module and is used for setting the starting mode and the closing mode of 'external lighting'.

4. A control method of a lighting control system of a refrigerator according to any one of claims 1 to 3, comprising the process of:

s00: the human body sensing equipment detects whether a user is in front of the refrigerator door or not; if yes, go to S01; if not, turning off the internal illuminating lamp and the external illuminating lamp;

s01: the illumination driving module judges whether the 'external illumination' is in a starting mode; if SO, perform SO 2; if not, keeping the external illuminating lamp off;

s02: the illumination driving module drives an external illumination lamp to be turned on;

s03: the refrigerator door switch detects whether the refrigerator door is opened; if yes, go to S04; if not, go to S00;

s04: the illumination driving module drives an internal illumination lamp to be turned on; with Te as a period, adjusting the output duty ratio of the illumination driving module to gradually lighten the internal illumination lamp from 1-50%;

wherein Te is preset brightness gradient time;

s05: starting to time Td when the internal illumination lamp reaches 50% brightness, and keeping 50% brightness of the internal illumination lamp;

s06: judging whether Td is greater than S; if yes, go to S07; if not, go to S05;

wherein the user eye adaptation time is the user eye adaptation time;

s07: the refrigerator door switch detects whether the refrigerator door is opened; if so, adjusting the output duty ratio of the illumination driving module to be 100%, and improving the illumination brightness; if not, S00 is executed.

5. The control method of the refrigerator lighting control system according to claim 4, wherein the preset brightness gradient time Te has a value range of: te is more than or equal to 1s and less than or equal to 4 s.

6. The control method of the refrigerator lighting control system according to claim 4 or 5, wherein the user eye accommodation time S is within a range of: s is more than or equal to 15S and less than or equal to 30S.

Technical Field

The invention belongs to the technical field of refrigerator illumination control, and particularly relates to a refrigerator illumination control system and a control method thereof.

Background

At present, the interior of a traditional refrigerator has an illumination function, and when a refrigerator door is opened, an illumination lamp inside the refrigerator can be turned on, so that a user can conveniently find refrigerator food materials. Interior lighting has become an essential function for refrigerators; however, the brightness of the illumination function of the common refrigerator is not controllable, the refrigerator can be suddenly turned on at the moment of opening the refrigerator, and particularly, the instant turning-on can cause discomfort to eyes under the condition that the ambient brightness is dark at night.

In order to solve the above problems, the present invention provides a refrigerator lighting control system and a control method thereof; the internal illuminating lamp is gradually lightened by adjusting the output duty ratio of the illumination driving module, so that the phenomenon that eyes are not suitable and head are dizzy due to the fact that the eyes directly jump to the high brightness condition under the dim condition is avoided.

Disclosure of Invention

The invention aims to provide a refrigerator lighting control system and a control method thereof, wherein an internal lighting lamp is gradually lightened by adjusting the output duty ratio of a lighting driving module; the problem of discomfort brought to eyes by instant lighting is solved.

In order to solve the technical problems, the invention is realized by the following technical scheme:

the invention is a refrigerator lighting control system, comprising: the refrigerator comprises a refrigerator door switch, a human body induction device, an internal illuminating lamp, an external illuminating lamp and an illumination driving module;

the refrigerator door switch is used for controlling the opening and closing of the refrigerator door and transmitting a switch signal to the illumination driving module;

the human body sensing equipment is used for detecting whether a user is in front of the refrigerator door or not and transmitting a user signal to the lighting driving module;

the illumination driving module is used for controlling the on and off of the external illumination lamp according to a user signal; and the illumination driving module is used for controlling the on-off and the brightness of the internal illumination lamp according to the switch signal and the user signal.

Preferably, the human body sensing device is a human body infrared sensor.

Preferably, the system further comprises a setting module; the setting module is connected with the lighting driving module and is used for setting the starting mode and the closing mode of 'external lighting'.

A control method of a refrigerator lighting control system comprises the following processes:

s00: the human body sensing equipment detects whether a user is in front of the refrigerator door or not; if yes, go to S01; if not, turning off the internal illuminating lamp and the external illuminating lamp;

s01: the illumination driving module judges whether the 'external illumination' is in a starting mode; if SO, perform SO 2; if not, keeping the external illuminating lamp off;

s02: the illumination driving module drives an external illumination lamp to be turned on;

s03: the refrigerator door switch detects whether the refrigerator door is opened; if yes, go to S04; if not, go to S00;

s04: the illumination driving module drives an internal illumination lamp to be turned on; with Te as a period, adjusting the output duty ratio of the illumination driving module to gradually lighten the internal illumination lamp from 1-50%;

wherein Te is preset brightness gradient time;

s05: starting to time Td when the internal illumination lamp reaches 50% brightness, and keeping 50% brightness of the internal illumination lamp;

s06: judging whether Td is greater than S; if yes, go to S07; if not, go to S05;

wherein the user eye adaptation time is the user eye adaptation time;

s07: the refrigerator door switch detects whether the refrigerator door is opened; if so, adjusting the output duty ratio of the illumination driving module to be 100%, and improving the illumination brightness; if not, S00 is executed.

Preferably, the preset brightness gradient time Te has a value range of: te is more than or equal to 1s and less than or equal to 4 s.

Preferably, the value range of the user eye adaptation time S is as follows: s is more than or equal to 15S and less than or equal to 30S.

One aspect of the present invention has the following advantageous effects:

1. when the internal illuminating lamp is turned on, the internal illuminating lamp is gradually lightened from 1 to 50 percent by adjusting the output duty ratio of the illumination driving module; guarantee that eyes have time buffering adaptation lamp and shine, avoid under the dim condition, eyes directly jump to under the high brightness condition, lead to the appearance of the uncomfortable condition such as eyes are not suitable, head and brain vertigo, protection eyes.

2. When being in night or under the lower condition of outside visibility, through detecting that there is the user in front of the refrigerator door, open external lighting lamp, be convenient for observe refrigerator external environment, avoid colliding with, be convenient for open the door.

Of course, it is not necessary for any product in which the invention is practiced to achieve all of the above-described advantages at the same time.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.

FIG. 1 is a schematic diagram of a lighting control system for a refrigerator according to the present invention;

fig. 2 is a flowchart of a control method of a refrigerator lighting control system according to the present invention.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it is to be understood that the terms "open," "upper," "middle," "length," "inner," and the like are used in an orientation or positional relationship for convenience in describing the present invention and for simplicity of description, and do not indicate or imply that the referenced components or elements must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.

Referring to fig. 1, the present invention is a lighting control system for a refrigerator, including: the refrigerator comprises a refrigerator door switch, a human body induction device, an internal illuminating lamp, an external illuminating lamp and an illumination driving module; the refrigerator door switch is used for controlling the opening and closing of the refrigerator door and transmitting a switch signal to the illumination driving module; the human body sensing device is used for detecting whether a user is in front of the refrigerator door or not and transmitting a user signal to the lighting driving module; the illumination driving module is used for controlling the on and off of an external illumination lamp according to a user signal; the illumination driving module is used for controlling the on-off and brightness of the internal illumination lamp according to the switching signal and the user signal; specifically, the human body sensing device is a human body infrared sensor; in addition, a setting module is included; the setting module is connected with the lighting driving module and is used for setting the starting mode and the closing mode of 'external lighting'.

Referring to fig. 2, a control method of a lighting control system of a refrigerator includes the following steps:

s00: the human body sensing equipment detects whether a user is in front of the refrigerator door or not; if yes, go to S01; if not, turning off the internal illuminating lamp and the external illuminating lamp;

s01: the lighting driving module judges whether the external lighting is in a starting mode; if SO, perform SO 2; if not, keeping the external illuminating lamp off;

s02: the illumination driving module drives an external illumination lamp to be turned on; when the refrigerator is in the night or the outside visibility is low, the external illuminating lamp is turned on by detecting that a user is in front of the refrigerator door, so that the external environment of the refrigerator can be observed conveniently, the collision can be avoided, and the door can be opened conveniently;

s03: the refrigerator door switch detects whether the refrigerator door is opened; if yes, go to S04; if not, go to S00;

s04: the lighting driving module drives an internal lighting lamp to be turned on; with Te as a period, specifically, the value range of the preset brightness gradient time Te is as follows: te is more than or equal to 1s and less than or equal to 4s, and the output duty ratio of the illumination driving module is adjusted to gradually lighten the internal illumination lamp from 1 to 50 percent; guarantee that eyes have time buffering adaptation lamp and shine, avoid under the dim condition, eyes directly jump to under the high brightness condition, lead to the appearance of the uncomfortable condition such as eyes are not suitable, head and brain vertigo, protection eyes.

Wherein Te is preset brightness gradient time;

s05: starting to time Td when the internal illumination lamp reaches 50% brightness, and keeping 50% brightness of the internal illumination lamp;

s06: judging whether Td is greater than S; if yes, go to S07; if not, go to S05;

wherein, user ' S eyes adaptation time is user ' S eyes adaptation time, and is specific, and user ' S eyes adaptation time S value range does: s is more than or equal to 15S and less than or equal to 30S;

s07: the refrigerator door switch detects whether the refrigerator door is opened; if so, adjusting the output duty ratio of the illumination driving module to be 100%, and improving the illumination brightness; if not, S00 is executed.

When the internal illuminating lamp is turned on, the internal illuminating lamp is gradually lightened from 1 to 50 percent by adjusting the output duty ratio of the illumination driving module; the eyes are ensured to have time to buffer and adapt to the light, the discomfort conditions of eye discomfort, dizziness and the like caused by the direct flash of the eyes to the high brightness in the dark condition are avoided, and the eyes are protected; in addition, when being in night or under the lower condition of outside visibility, through detecting when having the user in front of the refrigerator door, open external lighting lamp, be convenient for observe refrigerator external environment, avoid colliding with, be convenient for open the door.

In the description herein, references to the description of "one embodiment," "an example," "a specific example" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The preferred embodiments of the invention disclosed above are intended to be illustrative only. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, to thereby enable others skilled in the art to best utilize the invention. The invention is limited only by the claims and their full scope and equivalents.