CN107481656A - Optical sensing means, display control unit and household electrical appliance - Google Patents
Optical sensing means, display control unit and household electrical appliance Download PDFInfo
- Publication number
- CN107481656A CN107481656A CN201710672294.6A CN201710672294A CN107481656A CN 107481656 A CN107481656 A CN 107481656A CN 201710672294 A CN201710672294 A CN 201710672294A CN 107481656 A CN107481656 A CN 107481656A
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- CN
- China
- Prior art keywords
- module
- light
- sensing means
- optical sensing
- control unit
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G5/00—Control arrangements or circuits for visual indicators common to cathode-ray tube indicators and other visual indicators
- G09G5/10—Intensity circuits
Abstract
The embodiment of the present invention provides a kind of optical sensing means, display control unit and household electrical appliance, belongs to household appliance technical field.The optical sensing means includes：Optical sensor module, the optical sensor module include transmitter module and receiving module, and the receiving module is used to receive the light after the light that the transmitter module is sent is reflected, and produces an electric signal according to the light received；And first light-shielding film, first light-shielding film are arranged between the transmitter module and the receiving module, for preventing the diffusing reflection light of the transmitter module from reaching receiving module.The optical sensing means small volume, greatly save the design space of electric electrical appliance.It is a further object of the present invention to provide a kind of display control unit and household electrical appliance, the display control unit and household electric can be when user watch display module, display module is opened in time, and when user leaves, display module is closed in time, so as to significantly save the electric energy that display module is consumed.
Description
Technical field
The present invention relates to household appliance technical field, more particularly to optical sensing means, display control unit and household electrical appliance.
Background technology
In household electrical appliance, such as dish-washing machine, refrigerator etc. are usually provided with display device, for showing the work of household electrical appliance
The information such as state and various parameters.Wherein, particularly dish-washing machine develops into indispensable kitchen utensils abroad, at home also by
Gradually spread to every household.With the popularization of household electrical appliance, the electricity of household electrical appliance consumption also increasingly rises, therefore saves concept
Increasingly bring into schedule.The power for reducing core devices is possible to influence working effect, so the direction-locking for saving power consumption is non-
Nucleus module, such as display module.The TFT contact panels of in the market or the display button control panel of Simple LED lamp, are being saved
Energy aspect, using making display be shown in countdown when working properly, closes display at the end of countdown.This mode
When nobody watches and shown, display can still be in dispaly state, thus still result in unnecessary waste, display
Module is the device for prompting the user with household electric appliance operation state, if household electrical appliance work long hours but nobody sees
Display is seen, and display handles illuminating state always, will consume electric energy in vain.
In addition, the design space of household electrical appliance itself is limited, and when needing to add extra function for household electrical appliance,
It is also contemplated that the factor such as the outward appearance of household electrical appliance, volume, thus lack in the prior art can control in time display open or
Close, the control device to occupy little space again.
The content of the invention
The purpose of the embodiment of the present invention is to provide a kind of optical sensing means, display control unit and household electrical appliance, and the light passes
Induction device, the optical sensing means small volume, it is thus possible to be nested in various household electrical appliance and use, greatly save electric electrical appliance
Design space.
It is a further object of the present invention to provide a kind of display control unit and household electrical appliance, the display control unit and family expenses
Electric energy is enough to open display module in time when user watches display module, and when user leaves, closes display module in time,
So as to significantly save the electric energy that display module is consumed.
To achieve these goals, the embodiment of the present invention provides a kind of optical sensing means, and the optical sensing means includes：Light passes
Sensor module, the optical sensor module include transmitter module and receiving module, and the receiving module is used to receive the transmitting mould
The light that block is sent reflected after light, and an electric signal is produced according to the light that receives；And first light-shielding film, this first is in the light
Film is arranged between the transmitter module and the receiving module, and the diffusing reflection light for preventing the transmitter module, which reaches, to be connect
Receive module.
Wherein, the optical sensing means can also include：Second light-shielding film, second light-shielding film are arranged on the receiving module
And around the transmitter module, and the height of second light-shielding film is the height for making angle of incidence of light be predetermined angular.
Wherein, the predetermined angular is preferably 60 degree.
Wherein, the optical sensing means preferably includes：Transparent protective film, be arranged at the transmitter module exiting side and
The light incident side of the receiving module, for protecting the sending module and the receiving module.
According to another aspect of the present invention, a kind of display control unit for household electrical appliance, the display control are also provided
Device includes：Optical sensing means described above；And control module, for controlling the display module according to the electric signal
It is turned on and off.
Wherein, the control module can be by the electric signal received compared with predetermined threshold, when the electric signal is more than
During the predetermined threshold, control the display module to open, when the electric signal is less than the predetermined threshold, control described aobvious
Show that module is closed.
Wherein, the span of the predetermined threshold is preferably 1000-2000.
Wherein, the control module preferably receives once the electric signal at predetermined time intervals.
Wherein, the optical sensor module in the control module and the optical sensing means is preferably that there is I2C communications to connect
Mouthful, communicated between the control module and the optical sensor module by I2C and transmit data.
In accordance with a further aspect of the present invention, a kind of household electrical appliance are also provided, the household electrical appliance include display described above
Control device.
Pass through above-mentioned technical proposal, by setting light-shielding film, energy between the receiving module and transmitter module of optical sensor
The light diffusing reflection of enough anti-transmitter modules is to receiving module, so that receiving module and transmitter module can be set close proximity to ground,
And it can guarantee that the sensing accuracy of light sensing module.By the light sensing module application when the display control unit, miniaturization
Optical sensing means can be nested in display module, without taking design space too much, so as to sense in time
Human body and control display to be turned on and off in time, and will not increase volume because setting up optical sensing means, thus have
Very strong practicality.
The further feature and advantage of the embodiment of the present invention will be described in detail in subsequent specific embodiment part.
Brief description of the drawings
Accompanying drawing is that the embodiment of the present invention is further understood for providing, and a part for constitution instruction, with
The embodiment in face is used to explain the embodiment of the present invention together, but does not form the limitation to the embodiment of the present invention.Attached
In figure：
Fig. 1 is the schematic diagram of optical sensing means according to an embodiment of the invention；
Fig. 2 is the schematic diagram of optical sensing means according to another embodiment of the present invention；
Fig. 3 is the structured flowchart of display control unit according to an embodiment of the invention；
Fig. 4 is the exemplary circuit diagram of display control unit according to another embodiment of the present invention；And
Fig. 5 is the control flow chart of display control unit according to an embodiment of the invention.
Description of reference numerals
10：Transmitter module 20：Receiving module
30：First light-shielding film 40：Second light-shielding film
50：Transparent protective film 100：Optical sensing means
200：Control module
Embodiment
The embodiment of the embodiment of the present invention is described in detail below in conjunction with accompanying drawing.It should be appreciated that this
The embodiment of place description is merely to illustrate and explain the present invention embodiment, is not intended to limit the invention embodiment.
Fig. 1 is the schematic diagram of optical sensing means according to an embodiment of the invention.As shown in figure 1, the optical sensing means bag
Include：Optical sensor module, the optical sensor module 10 include transmitter module and receiving module 20, and the receiving module 20 is used to connect
The light after the light that the transmitter module 10 is sent is reflected is received, and an electric signal is produced according to the light received；And first gear
Light film 30, first light-shielding film 30 are arranged between the transmitter module 10 and the receiving module 20.In Fig. 1, dotted arrow
Radiation direction is represented, the wave between transmitter module 10 and receiving module 20 represents diffusing reflection light, the diffusing reflection light quilt
First obstacle stops and can not reach receiving module.
In the present embodiment, the light that transmitter module 10 is sent can be prevented because of diffusing reflection by the first light-shielding film 30 to be connect
Receive module 20 to receive by mistake, thus, transmitter module 10 and receiving module can be arranged in the space of very little, and can be close to cloth
Put, so as to save the global design space of optical sensing means, the further favourable miniaturization for using optical sensing means, expand suitable
Use scope.The volume of the optical sensing means of the present invention small can reach 3mm, and when being arranged in other devices, space-consuming is very small.
Fig. 2 is the schematic diagram of optical sensing means according to another embodiment of the present invention.As shown in Fig. 2 the optical sensing means
It can also include：Second light-shielding film 40, second light-shielding film are arranged on the week of the receiving module 10 and the transmitter module 20
Enclose, and the height of second light-shielding film 40 is the height for making angle of incidence of light be predetermined angular.The predetermined angular is preferred
For 60 degree.Same Fig. 1 of content that dotted line and wave represent in Fig. 2.
Thus, in the certain spatial dimension that the inductive spacing scope of optical sensing means can be limited, so that its pin
To being detected in the spatial dimension, the accuracy of sensing is improved, when it is applied in other devices, it is possible to increase control
Accuracy.
With reference to figure 2, the optical sensing means preferably includes：Transparent protective film 50, it is arranged at the transmitter module 10
The light incident side of exiting side and the receiving module 20, for protecting the sending module and the receiving module.Utilize transparent guarantor
Cuticula 50 can prevent light sensing module from being damaged because of extraneous factor.
Fig. 3 is the structured flowchart of display control unit according to an embodiment of the invention.As shown in figure 3, the display control
Device includes：Optical sensing means 100, the optical sensing means are the optical sensing means described in above-described embodiment；And control mould
Block 200, for controlling the display module to be turned on and off according to the electric signal.
Using the optical sensing means described in above-described embodiment, the display control unit can be miniaturized, so as to
It is nested in display module, so as to save design space, and the structure of display control unit is simple, and manufacturing cost is low, in reality
While the Energy Saving Control of existing display module, it will not excessively increase the hardware cost of display control unit, so as to be really achieved i.e.
Energy-conservation and economic purpose.
Fig. 4 is the exemplary circuit diagram of display control unit according to another embodiment of the present invention.The control module and
Optical sensor module in the optical sensing means is preferably to have I2C communication interfaces, as shown in figure 4, light sensing module includes
Optical sensor IC1, control module include microcontroller IC2.Optical flame detector can select data pick-up LTR-507ALS, thus institute
State to communicate by I2C between control module and the optical sensor module and transmit data.
As shown in figure 4, resistance RP1, RP2, RP3 are data-signal SDA, clock signal SCL, interrupt signal INT respectively
Pull-up circuit.VDD is optical sensor IC1 simulation feeder ear, accesses ground after digital power system AVDD connection electric capacity C1 and C2
(GND).LED is accessed after LED feeder ears VLED connection electric capacity C3 and C4.Such a application circuit can greatly simplify system
Working method, and greatly improve the efficiency carried out data transmission between modules.
Fig. 5 is the control flow chart of display control unit according to an embodiment of the invention.
As shown in figure 5, in control process, control module acquisition display module switching signal, and according to the switching signal
Judge whether display module is in running order, only under display module processing normal operating conditions, display module could be controlled
It is turned on and off.Switching signal, according to the size of the input current, can obtain such as the input current that can be electric display module
Know whether display module is in running order.
When display module is in running order, the transmitter module of optical sensing means sends optical signal, receiving module detection
The optical signal incides the reflected light of receiving module after being reflected, and according to the electric signal of reflection light output one received.
Control module can receive an above-said current signal at predetermined time intervals, and the scheduled time for example can be
1000ms, the scheduled time can be configured according to actual conditions.The electric signal of receiving module output can pass through further
Input connects molding block after processing, such as carries out Analog-digital Converter, filtering process etc., and these can be by those skilled in the art
Set according to actual conditions.
Control module can be by the above-said current signal received compared with predetermined threshold, when above-said current signal is more than predetermined threshold
When, illustrate that user comes to watch display module, can now open display module, otherwise, illustrate that no user watches and show mould
Block, display module can be closed.The span of the predetermined threshold is preferably 1000-2000, and is preferably 2000.
Display module is controlled to be turned on and off by the way that the electric signal is compared to predetermined threshold in the present embodiment,
To detect in front of display panel whether it is human body the purpose is to the area according to shelter or volume, so as to will not be because of mosquito
The small obstacles such as son enter in optical sensing means induction range and cause display control unit to malfunction.Relative in general profit
Controlled with regularly for the scheme that display module turns off or on, the sensitiveer standard of display control unit control process of the invention
Really, display module can be switched in time, i.e., do not influence user's use, and energy saving.
The optical sensor in optical sensing means in above-described embodiment can be any kind of optical sensor, transmitter module
The light sent can be infrared light, visible ray etc., and the present invention is to this without especially limitation.
Above-mentioned display control unit can apply in the household electrical appliance such as dish-washing machine, refrigerator, baking box, for example, above-mentioned display
When control device is applied to dish-washing machine, before user comes to check the working condition of dish-washing machine and goes to the display module of dish-washing machine
When, the light that now transmitter module is sent reflexes to receiving module by human body, and the electric signal of receiving module output is more than predetermined threshold
(being greater than 2000), the display module closed originally are opened, and when people leaves, the light that transmitter module is sent can not be reflected
To receiving module, the electric signal of receiving module output does not reach predetermined threshold, can now close display module.
Because the volume of the display control unit of the present invention is very small, very little is only taken up when being arranged in household electrical appliance
Space, therefore display control unit can be directly nested in display module (such as on display panel), for example, can by
Borehole on display panel, and display control unit is placed in one.Can also lead to set in display module as needed
Multiple display control units are put, such as respectively can set one at the corner of display panel, thus further enhance sensing spirit
Sensitivity.
The optional embodiment of the embodiment of the present invention is described in detail above in association with accompanying drawing, still, the embodiment of the present invention is simultaneously
The detail being not limited in above-mentioned embodiment, can be to of the invention real in the range of the technology design of the embodiment of the present invention
The technical scheme for applying example carries out a variety of simple variants, and these simple variants belong to the protection domain of the embodiment of the present invention.
It is further to note that each particular technique feature described in above-mentioned embodiment, in not lance
In the case of shield, it can be combined by any suitable means.In order to avoid unnecessary repetition, the embodiment of the present invention pair
Various combinations of possible ways no longer separately illustrate.
It will be appreciated by those skilled in the art that realize that all or part of step in above-described embodiment method is to pass through
Program instructs the hardware of correlation to complete, and the program storage is in the storage medium, including some instructions are causing list
Piece machine, chip or processor (processor) perform all or part of step of each embodiment methods described of the application.It is and preceding
The storage medium stated includes：USB flash disk, mobile hard disk, read-only storage (ROM, Read-Only Memory), random access memory
(RAM, Random Access Memory), magnetic disc or CD etc. are various can be with the medium of store program codes.
In addition, it can also be combined between a variety of embodiments of the embodiment of the present invention, as long as it is not
The thought of the embodiment of the present invention is run counter to, it should equally be considered as disclosure of that of the embodiment of the present invention.
Claims (10)
1. a kind of optical sensing means, it is characterised in that the optical sensing means includes：
Optical sensor module, the optical sensor module include transmitter module and receiving module, and the receiving module is used to receive institute
The light after the light that transmitter module is sent is reflected is stated, and an electric signal is produced according to the light received；And
First light-shielding film, first light-shielding film are arranged between the transmitter module and the receiving module, described for preventing
The diffusing reflection light of transmitter module reaches the receiving module.
2. optical sensing means according to claim 1, it is characterised in that the optical sensing means also includes：
Second light-shielding film, second light-shielding film are arranged on around the receiving module and the transmitter module, and described
The height of two light-shielding films is the height for making angle of incidence of light be predetermined angular.
3. optical sensing means according to claim 2, it is characterised in that the predetermined angular is 60 degree.
4. according to the optical sensing means any one of claim 1-3, it is characterised in that the optical sensing means also includes：
Transparent protective film, the exiting side of the transmitter module and the light incident side of the receiving module are arranged at, it is described for protecting
Sending module and the receiving module.
5. a kind of display control unit for household electrical appliance, it is characterised in that the display control unit includes：
Optical sensing means any one of claim 1-4；
Control module, for controlling the display module to be turned on and off according to the electric signal.
6. display control unit according to claim 5, it is characterised in that the electric signal that the control module will receive
Compared with predetermined threshold, when the electric signal is more than the predetermined threshold, the display module is controlled to open, when the telecommunications
When number being less than the predetermined threshold, the display module is controlled to close.
7. display control unit according to claim 6, it is characterised in that the span of the predetermined threshold is
1000-2000。
8. according to the display control unit any one of claim 5-7, it is characterised in that the control module is every pre-
Fix time and receive the once electric signal.
9. according to the display control unit any one of claim 5-7, it is characterised in that the control module and described
Optical sensor module in optical sensing means has I2C communication interfaces, between the control module and the optical sensor module
Communicated by I2C and transmit data.
10. a kind of household electrical appliance, it is characterised in that the household electrical appliance include the display control any one of claim 5-9
Device processed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710672294.6A CN107481656A (en) | 2017-08-08 | 2017-08-08 | Optical sensing means, display control unit and household electrical appliance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710672294.6A CN107481656A (en) | 2017-08-08 | 2017-08-08 | Optical sensing means, display control unit and household electrical appliance |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107481656A true CN107481656A (en) | 2017-12-15 |
Family
ID=60599745
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710672294.6A Pending CN107481656A (en) | 2017-08-08 | 2017-08-08 | Optical sensing means, display control unit and household electrical appliance |
Country Status (1)
| Country | Link |
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| CN (1) | CN107481656A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110506299A (en) * | 2018-11-02 | 2019-11-26 | 深圳市汇顶科技股份有限公司 | The device and door lock of vivo identification |
| CN114681085A (en) * | 2022-03-28 | 2022-07-01 | 上海飞象健康科技有限公司 | Oral cleaner based on intelligent light sensation start-stop control, start-stop control method and terminal |
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| CN101079098A (en) * | 2006-05-22 | 2007-11-28 | 夏普株式会社 | Optical reflective information reading sensor and electronic device |
| CN101901088A (en) * | 2010-08-06 | 2010-12-01 | 鸿富锦精密工业（深圳）有限公司 | Infrared control device |
| CN102135791A (en) * | 2009-09-18 | 2011-07-27 | 郑巍 | Energy-saving control method for display and circuit design thereof |
| CN106292304A (en) * | 2015-05-22 | 2017-01-04 | 佛山市顺德区美的电热电器制造有限公司 | Control device, method and the household electrical appliance of household electrical appliance standby interface |
| CN206293105U (en) * | 2016-12-20 | 2017-06-30 | 佛山市顺德区美的电热电器制造有限公司 | Display module and household electrical appliance |
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Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101079098A (en) * | 2006-05-22 | 2007-11-28 | 夏普株式会社 | Optical reflective information reading sensor and electronic device |
| CN102135791A (en) * | 2009-09-18 | 2011-07-27 | 郑巍 | Energy-saving control method for display and circuit design thereof |
| CN101901088A (en) * | 2010-08-06 | 2010-12-01 | 鸿富锦精密工业（深圳）有限公司 | Infrared control device |
| CN106292304A (en) * | 2015-05-22 | 2017-01-04 | 佛山市顺德区美的电热电器制造有限公司 | Control device, method and the household electrical appliance of household electrical appliance standby interface |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110506299A (en) * | 2018-11-02 | 2019-11-26 | 深圳市汇顶科技股份有限公司 | The device and door lock of vivo identification |
| CN114681085A (en) * | 2022-03-28 | 2022-07-01 | 上海飞象健康科技有限公司 | Oral cleaner based on intelligent light sensation start-stop control, start-stop control method and terminal |
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| PB01 | Publication | ||
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Application publication date: 20171215 |