CN204576412U - A kind of computer display screen energy-saving control device - Google Patents
A kind of computer display screen energy-saving control device Download PDFInfo
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- CN204576412U CN204576412U CN201520274537.7U CN201520274537U CN204576412U CN 204576412 U CN204576412 U CN 204576412U CN 201520274537 U CN201520274537 U CN 201520274537U CN 204576412 U CN204576412 U CN 204576412U
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Abstract
The utility model relates to a kind of computer display screen energy-saving control device, comprise for responding to the coupling arrangement having unmanned human body sensing part, force the light-inductive part of display screen automatic regulating lightness, control section for induction light and be connected with PC, wherein, described human body sensing part is arranged on the side of control section, and described coupling arrangement is connected with described control section.MSP430 is as acp chip, cheap, and when the signal that human body leaves not detected, system is in dormant state, and power consumption is extremely low.System is easy to use, not only can use on desktop computer, also can run on notebook computer, and only need a USB port to carry out work, Power supply is without the need to additional power source.While system realizes extinguishing screen robotization, user can be arranged the operation etc. after delay time and time delay for own situation; Automatically whether user can also select by bright screen.
Description
Technical field
The utility model is specifically related to a kind of computer display screen energy-saving control device.
Background technology
China's 13.5 hundred million populations, Yue3.6Yi Ge family.Urban family accounts for 54.77% (Re-search on Urbanization rate in 2014), about 200,000,000 families.Wherein about 81% family is equipped with computer, namely about 1.62 hundred million, and there are several computers in a lot of family, and conservative estimation is 1.8 hundred million.Rural households about 32% outfit computer, is equipped with about 0.52 hundred million, computer.Government bodies, enterprises and institutions, each colleges and universities, middle schools etc. are equipped with about 0.5 hundred million, and 2.82 hundred million.Notebook computer China coverage rate, for being about 20%, is about 2.7 hundred million.That is: desktop computer 2.82 hundred million, notebook computer 2.7 hundred million.Do not add up the computer quantity in the places such as Internet bar herein as can be seen here, Computers in China quantity is very huge.
But people, in daily use habit, especially in places such as company, university, scientific research institution, Internet bars, often occur that people leaves the phenomenon of rear computer display screen still light yellow, have wasted a large amount of electric energy; Even if employing screen protection program, after computer dormancy, computer screen is not extinguished, result also in the electric energy loss of a part; And will suspension automatically after computer standby, so often in order to download thing or game on-hook etc., computer can be made to keep the state of light yellow for a long time ... in view of China has so huge large-scale computer quantity, for above-mentioned phenomenon, certainly computer energy-saving just seems particularly necessary.
In all kinds of energy-conservation works on market, that carries out for dormancy, standby energy consumption energy-conservationly gets the brush-off always, by computer breath screen with an automatic light meter to save energy unprecedented especially.In the face of much common display, the product needing universality very strong realizes economizing on electricity, energy-conservation, also needs very strong compatibility.And at present except have carry infrared induction display except, there is no the product similar with these works.
These works are started with from four aspects and are carried out energy-conservation to existing computer, and one is automatic distinguishing screen after human body leaves detected at sensor; Two is can realize display screen with an automatic light meter; Three is that user can be arranged for own situation, arranges the operation carried out after comprising delay time and time delay, namely dormancy or shutdown; Four is that computor-keyboard backlight can be closed when bright and clear, lights during insufficient light.It not only goes for desktop computer, also may be used for notebook computer, as long as USB port just can practical function, without the need to additional power source; And the chip price that our works are elite is cheap, with park mode, power consumption is extremely low.
In all kinds of energy-conservation works on market, that carries out for standby energy consumption energy-conservationly gets the brush-off always, and the energy consumed for computer standby is unprecedented especially.Computer display screen energy-conservation little house keeper start with from details, not only can change the daily incorrect habits and customs of people, and considerably reduce unnecessary electric energy loss.Green energy conservation should not only require that works will have the control energy consumption on material, and the system that more will realize is managerial energy-conservation, namely can go by using these works life style, the custom of improving people, realizing " green energy conservation " in daily life.
As everyone knows, increasing screen, more and more higher screen resolution, the power consumption of display is also increasing, these works will realize the energy-conservation use of computer display screen, and have the advantages such as little, the easy realization of investment, benefit are large, environmental protection and energy saving, and a kind of effective settlement computer display can not put out the scheme of screen phenomenon in time beyond doubt, do one like this and save electricity surely, be suitable for promoting the use of.If universal, it will be a great riches that its province's electricity is added up.
Utility model content
For problems of the prior art, the utility model provides a kind of computer display screen energy-saving control device.
In order to solve above technical matters, the technical solution of the utility model is:
A kind of computer display screen energy-saving control device, comprising having unmanned human body sensing part for responding to, forcing the light-inductive part of display screen automatic regulating lightness, control section and connect the coupling arrangement of described computer display screen energy-saving control device and PC for induction light, wherein, described human body sensing part is arranged on the side of control section, light-inductive part is installed on described control section, and be exposed in external environment, described coupling arrangement is connected with described control section.
Preferably, described human body sensing part is arranged on one end of described control section by runing rest, and can 360 ° of rotations.
Preferably, described control section is MSP430 single-chip microcomputer.
Preferably, described human body sensing part is infrared sensor of the human body.
Preferably, described infrared sensor of the human body is HC-SR501 infrared sensor of the human body.
Preferably, described light-inductive part is several photoresistance.
Preferably, described coupling arrangement is USB interface.
Advantageous Effects of the present utility model is:
1, there is infrared sensor of the human body in the utility model, the automatic extinguishing screen of display screen or automatic bright screen can be controlled according to the presence or absence of people, avoid the energy dissipation that user need not cause for a long time;
2, the light-inductive part in the utility model can sense ambient light photograph, and according to the brightness of Illumination adjusting display screen, under the prerequisite that can effectively economize on resources, also can play the effect of eyeshield.
3, for the computer with KBD-LIGHT, when extraneous light intensity is higher than certain value, computor-keyboard backlight non-attended light is closed; Automatically light lower than computor-keyboard backlight during this value.
4, display screen control system can also realize display screen and to put out after screen how long automatic shutdown, and this forgets the wasting of resources of closing computer and causing after can effectively being avoided user not use computer.
5, MSP430 is as acp chip, cheap, and when the signal that human body leaves not detected, system is in dormant state, and power consumption is extremely low.
6, system is easy to use, not only can use on desktop computer, also can run on notebook computer, and only need a USB port to carry out work, Power supply is without the need to additional power source.
7, while system realizes extinguishing screen robotization, user can be arranged the operation etc. after delay time and time delay for own situation; Automatically whether user can also select by bright screen, if be not selected from dynamic bright screen, then realizes bright screen by touching mouse or knocking any key.
8, the Design of Mechanical Structure of native system is simplified, and body is very little, after integrated, as USB flash disk size; Flexible structure, with rotatable newel, can make the infrared sensor of the human body of upper end can realize 360 degree of rotations, facilitate the adjustment of induction range.
9, very well compatible, not only notebook, desktop computer are all applicable, and support the systems such as Windows XP, Windows 7, Linux at present.
10, simple to operate, do not need repacking, only need computer downloading software program, arrange application, inserting USB port can carry out work.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
Fig. 2 is MSP430 single chip circuit figure;
Fig. 3 is light-inductive partial circuit figure;
Fig. 4 is control section design flow diagram;
Fig. 5 and Fig. 6 is PC programming flowchart;
Wherein, 1, human body sensing part, 2, runing rest, 3, single-chip microcomputer, 4, USB interface, 5, light-inductive part.
Embodiment
Below in conjunction with accompanying drawing, the utility model is further described.
As shown in Figure 1, a kind of computer display screen energy-saving control device, comprising having unmanned human body sensing part 1 for responding to, forcing the light-inductive part of display screen automatic regulating lightness, control section and connect the coupling arrangement of described computer display screen energy-saving control device and PC for induction light, wherein, described human body sensing part is arranged on the side of control section, light-inductive part 5 is installed in device circuit board, and be exposed in external environment, described coupling arrangement is connected with described control section.
Described human body sensing part 1 is arranged on one end of described control section by runing rest 2, and can 360 ° of rotations.
Described coupling arrangement is USB interface 4.
Human body sensing part 1 is HC-SR501 infrared sensor of the human body, for responding to the presence or absence of people, and transmits the signal of 0 (people does not exist) or 1 (having people to exist) to single-chip microcomputer.Light-inductive part can be responded to extraneous light intensity and send corresponding data through A/D to single-chip microcomputer.Control section adopts MSP430 low-power scm, receives the signal of sensor, then send corresponding signal by microcontroller serial port to PC by I/O port.Serial Port Transmission adopts USB to turn serial mode, and realizes USB and power.PC software control part mainly computer software by receiving the data that transmit of serial ports, realize computer monitor to put out screen, bright screen and display screen with an automatic light meter etc.Automatic shutdown (or automatic stand-by), whether automatically bright screen and selection whether with an automatic light meter etc. after how long computer software part can also realizes arranging after automatic extinguishing screen.If do not select automatic bright screen, be and put out the rear manual bright screen of screen, realize bright screen as touched mouse or knocking any key.Software section also achieves the backlight lamp control of keyboard, light-inductive part sense extraneous bright and clear time can close computor-keyboard backlight, during extraneous insufficient light, KBD-LIGHT is opened.
As shown in Figure 2, the single-chip microcomputer 3 that the utility model adopts for MSP430 series monolithic be the single-chip microcomputer of 16, have employed reduced instruction set computer (RISC) structure, there is abundant addressing mode (7 kinds of source operand addressing, 4 kinds of destination operand addressing), 27 succinct core instructions and a large amount of dummy instructions; In a large amount of registers and sheet, data-carrier store all can participate in multiple computing; To table look-up efficiently in addition processing instruction.These features ensure that and can develop high efficiency source program.
Why MSP430 single-chip microcomputer has ultralow power consumption, is because it has its distinctive feature in the supply voltage reducing chip and flexible and controlled operation clock.First, what the supply voltage of MSP430 series monolithic adopted is 1.8-3.6V voltage.When it thus can be made to run under the Clock of 1MHz, the minimum meeting of electric current of chip is at 165 μ about A, and the lowest power consumption under RAM Holdover mode only has 0.1 μ A.Secondly, unique Clock System Design.The clock system that two different is had: fundamental clock system, FLL (FLL and FLL+) clock system and DCO digital oscillator clock system in MSP430 series.Only can use crystal oscillator (32.768kHz) DT-26ORDT-38, also can use two crystal oscillators.The clock needed for CPU and each function is produced by system clock system.And these clocks under the control of instruction, can open and close, thus realize the control to overall power consumption.
This single-chip microcomputer inherits the advantage of MSP430 series monolithic: low suppling voltage scope: 1.8V ~ 3.6V; Super low-power consumption: activity pattern--220 μ A, standby mode--0.5 μ A, shutdown mode (retaining RAM)--0.1 μ A; Have five kinds of energy-saving modes; Lower than the standby wakeup speed of 1 μ s; 16 reduced instruction set computers, the instruction cycle can reach 62.5ns; Fundamental clock block configuration: the internal clocking that the band up to 16MHz is calibrated, the LF oscillator of inner super low-power consumption, the crystal oscillator of 32KHz, external digital clock source; Serial plate is programmed; The in-circuit emulation logic etc. of 2 line jtag interfaces.
Adopt HC-SR501 infrared sensor of the human body, based on the automatic control works of infrared technology, highly sensitive, reliability is strong, and extra low voltage mode of operation, is widely used in all kinds of automatic induction apparatus equipment, especially the automatic control works of dry cell power supply.
This probe is to detect human body radiation for target.So pyroelectricity element must be very responsive to the infrared radiation that wavelength is about 10 μm.In order to only to sensitive for infrared radiation, show up in its radiation and be usually coated with special Fresnel optical filter, make the interference of environment be subject to obvious control action.
Environment temperature and human body temperature close to time, detection and sensitivity obviously decline, and sometimes cause malfunctioning in short-term.This module carries temperature compensation, and in summer when environment temperature is increased to 30 ~ 32 DEG C, temperature compensation can make certain performance compensation.
When people's transfixion, detect easily malfunctioning.Infrared sensor of the human body has induction blocking time (default setting: 2.5s blocking time), induction module is after responding to output each time (high level becomes low level), can followed by arranging a blocking time section, at this moment, section interoceptor does not accept any induced signal.This time can be arranged on second at several seconds zero point-tens.For strengthening its accuracy, the utility model has done following optimization:
From no one to there being people, infrared sensor of the human body can perceive people exactly by temperature compensation, adjustment of sensitivity etc. and be that screen lights automatically.But because when people might not use computer close to during computer, so these works can arrange manually opened screen, such as keypad or mouse.
When there being people to exist, if having mouse or KeyEvent, keep not stopping screen; When not having mouse or KeyEvent, sensor can gather 16 signals every two seconds, keeping not stopping screen, strengthening the fault-tolerance of sensor when there being the signal proportion of people to be greater than 40%.
Infrared sensor of the human body is Micro Energy Lose, quiescent current <50 microampere.
As shown in Figure 3, photo-resistor is the resistor that a kind of resistance value utilizing the photoconductive effect of semiconductor to make changes with the power of incident light, is also called photoconductive detector; Incident intensity, resistance reduces, and incident light is weak, and resistance increases.Also have another kind of incident light weak, resistance reduces, incident intensity, and resistance increases.
Light-inductive part adopts sensitive-type photosensitive resistance sensor, can detect light luminance, operating voltage 3.3V-5V.Photoresistance module is the most responsive to ambient light, is generally used for detecting the brightness of light of surrounding environment, triggers single-chip microcomputer or relay module etc.Analog output AO can be connected with A/D module, is changed by A/D, can obtain environmental light intensity numerical value more accurately.
In order to strengthen stability, these works employ two photoresistance balanced voltages and carry out adjusting screen brightness.Meanwhile, when light intensity is higher than certain value, computor-keyboard backlight non-attended light is closed; Automatically light lower than computor-keyboard backlight during this value.
By adjusting screen brightness, relative brightness is reached just when to protect human eye, pay attention to health; Control the light on and off of screen intensity and KBD-LIGHT, reduce unnecessary waste of energy, reach energy-conservation object.
The programming idea of MSP430 single-chip microcomputer is: MSP430 single-chip microcomputer receives the signal from infrared sensor of the human body by I/O port.When human body sensor has sensed people, send 1 signal to single-chip microcomputer; Nobody time send 0 signal.Single-chip microcomputer transmits 0 or 1 data by serial ports to PC again.Photoresistance changes the resistance value of self according to extraneous light intensity, and therefore photoresistance both end voltage can change, and is digital quantity, through Serial Port Transmission to PC through the inner A/D module converter of MSP430.Program of lower computer design flow diagram as shown in Figure 4.
As shown in Figure 5, the data that PC program transmits by receiving serial ports, what realize computer monitor puts out screen or bright screen: when human body sensor has detected people, automatic bright screen; When human body sensor detects nobody, automatic extinguishing shields.The selection of automatic shutdown (or automatic stand-by) and automatic bright screen after how long computer software part can also realizes arranging after automatic extinguishing screen.If do not select automatic bright screen, very put out the rear manual bright screen of screen, realize bright screen as touched mouse or knocking any key.Software section also achieves the backlight lamp control of keyboard, light-inductive part sense extraneous bright and clear time can close computor-keyboard backlight, during extraneous insufficient light, computer backlight is opened.
Program design with an automatic light meter is comparatively complicated, is mainly divided into two kinds of situations:
1. screen backlight drived control
Can control screen backlight drive automatically can identify and control its backlight illumination, and return the brightness value of 0-100, realizes the automatic amendment to its brightness value, thus realize with an automatic light meter.If recognition failures (namely this driving can not control display backlight brightness), then the 2nd kind of mode is turned to control.
The display brightness of the similar Mobility Center of control mode (shortcut Win+X) of notebook screens regulates, and supports from XP SP1 to Win7 system (can use according to driving setting unit Win8).The intrinsic brilliance grade of notebook by driving decision, and can only be set to fixing brightness degree
Desktop computer screen request supports that DDC/CI could control, and the new screen of major part after Vista is all supported, system after supporting Vista.
2. change screen Gamma value to control
Gamma comes from the response curve of display, i.e. the nonlinear relationship of its brightness and input voltage.The selection gist of Gamma value makes the brightness of screen softer, has certain contrast but too strongly, otherwise can not will cause eye strain.The adjustment of brightness can be realized by changing Gamma value, thus save electric energy.
The design frame chart of host computer procedure is as shown in 5 and Fig. 6.
Mechanical appearance structure of the present utility model has following features: design is simplified, and body is very little.After integrated, will as USB flash disk size; Flexible structure, the infrared sensor of the human body of upper end can realize 360 degree of rotations, facilitates the adjustment of induction range.
Theoretical Design calculates
(1) system energy consumption analysis
The control chip MSP430 that these works adopt belongs to low-power consumption type single-chip microcomputer, operating voltage 3.3V.Under normal mode of operation, typical power consumption is 2 ~ 5mA, the typical power consumption <0.1uA under power-down mode, typical power consumption <1.3mA under idle pulley.In the design 128 frequency divisions are carried out to Singlechip clock, to reduce power consumption.By programmed control in a cycle period, activity pattern accounts for the time of 20%, and idle pulley accounts for the time of 80%, then estimate: average current is I=4*20%+1*80%=1.6mA, and power is P=UI=3.3*1.6=5.28mW=0.00528W.
Human body infrared induction module Micro Energy Lose, quiescent current <50uA, then power is P=UI=3.3*0.05=0.165mW=0.000165W.
In photosensitive circuit, be made up of the photoresistance of 10K resistant series, then average current is lower than I=3.3/10000=0.33mA, and with 0.3mA evaluates calculation, power is P=UI=3.3*0.3=0.99mW=0.00099W.
During efficient control circuit, other components and parts power consumptions are about 0.006W.
By calculating above and can drawing, this entire system power consumption is about 0.012W.
This entire system is low in energy consumption, efficiency is high.If Integration Design, in energy consumption, also has room for promotion.
(2) energy consumption and performance analysis
The power consumption of desktop computer is determined according to the configuration of computer:
A. without display card, cpu power is within 90W, and the display within 19 cun, general power is about about 220 watts.
B. there is display card, according to the situation of video card, about additionally increase 30W-300W.
Notebook computer general power is generally at 50 ~ 80W.
The power consumption of computer comes from display greatly.Liquid crystal display 35--50W, as 19 cun of wide-screen liquid crystal displays, generally at 40 watts.If will calculate just more by CRT, only 17 cun of displays, according to screen intensity, power 75 watts to 85 watts.But the development of computer screen is more and more higher towards resolution, the increasing future development of screen this can increase the energy consumption of liquid crystal display undoubtedly.
In order to test screen brightness and breath screen, the standby impact on power consumption, when testing, screen intensity is adjusted to maximum (exception of special instruction), and closes " reduction display brightness " " closedown display " setting options that " make computing machine enter sleep state ".Obtain as following table 1, test result shown in table 2:
The different desktop computer of table 1 average power under different operating state
The different notebook computer of table 2 average power under different operating state
From table 1, can find out in the test result of table 2 and above-mentioned curve, the electricity that different type of machines expends for hour has certain difference, but is not very large.When being all standing or full load condition, the brightness of adjustment screen is still larger on the impact of energy consumption.And unified rule is that screen intensity also reduces from the brightest to the darkest energy consumption thereupon, and change obviously.Effect after putting out screen is more remarkable.Super this brightness regulation and to put out screen least obvious, and the power consumption of complete machine is also minimum.
According to the related data of questionnaire, with a calculating, suppose to use average every day machine time to be 7 hours, calculated with 1 year 300 days, not time of screen still light yellow when computer is other, comprise the shinny screen protection time, adding up all computers that you use is 1.2 hours, according to computer power consumption analysis, then average every platform computer use the power consumption before and after this device and blowdown flow rate contrast form as follows: (note: herein not by and the energy consumption calculation of saving standby by this device interior)
Energy consumption and CER contrast before and after the average every platform desktop computer of table 3 uses
| Before using | After using | Difference | |
| Power consumption (kwh/ platform/sky) | 0.85 | 0.60 | 0.25 |
| Power consumption (kwh/ platform/year) | 255 | 180 | 75 |
Energy consumption and CER contrast before and after the average every platform notebook computer of table 4 uses
| Before using | After using | Difference | |
| Power consumption (kwh/ platform/sky) | 0.34 | 0.24 | 0.1 |
| Power consumption (kwh/ platform/year) | 102 | 72 | 30 |
Learnt by test, the energy consumption of notebook itself compared to much low base, and this device per hour save about 25% ~ 40% electric energy; Screen intensity can automatically along with the change of ambient light line strength, thus under Night relative daytime can energy-conservation 20% ~ 30% electric energy.Effect for notebook does not have desktop computer remarkable, but has all well and good benefit yet.
(3) economic feasibility analysis
1. funds are estimated
These works simplicity of design, cheap, by consulting related data and the relevant teacher of inquiry, if these works of integrated production, appropriation budget refers to following table:
Table 5 works retail budget table
| Sequence number | Project | Unit price (unit) | Quantity | Total price (unit) |
| 1 | MSP430G2553 | 3 | 1 | 3 |
| 2 | Cadmium sulphide photoconductive cell | 0.1 | 2 | 0.2 |
| 3 | Pyroelectric infrared sensor | 1.5 | 1 | 1.5 |
| 4 | PL2303HX | 1 | 1 | 1 |
| 5 | USB port | 0.2 | 1 | 0.2 |
| 6 | PCB base plate | 1 | 1 | 1 |
| 7 | Electronic devices and components | 0.5 | 1 | 0.5 |
| 8 | Outward appearance plastic construction | 0.5 | 1 | 0.5 |
| Total price | 7.9 |
2. overall benefit is estimated
China's 13.5 hundred million populations, Yue3.6Yi Ge family.Urban family accounts for 54.77% (Re-search on Urbanization rate in 2014), about 200,000,000 families.Wherein about 81% family is equipped with computer, namely about 1.62 hundred million, and there are several computers in a lot of family, and conservative estimation is 1.8 hundred million.Rural households about 32% outfit computer, is equipped with about 0.52 hundred million, computer.Government bodies, enterprises and institutions, each colleges and universities, middle schools etc. are equipped with about 0.5 hundred million, and 2.82 hundred million.Notebook computer China coverage rate, for being about 20%, is about 2.7 hundred million.
That is: desktop computer 2.82 hundred million, notebook computer 2.7 hundred million.(not adding up the computer quantity in the places such as Internet bar herein)
According to the performance evaluation of desktop computer and the performance evaluation of notebook computer, calculated with 1 year 300 days, calculate according to the working with notebook computer of 60% desktop computer in a day and 50%, then before and after the annual computer in the whole nation overall uses power consumption and blowdown flow rate contrast as shown in the table: (note: herein not by and the energy consumption calculation of saving standby by this device interior)
Energy consumption and CER contrast before and after the national computer of table 6 uses
| Before using | After using | Difference | |
| Power consumption (kwh/ days) | 1.8×10 8 | 1.27×10 8 | 5.3×10 7 |
| Power consumption (kwh/) | 5.4×10 10 | 3.81×10 10 | 1.59×10 10 |
| Consume rock gas (m 3/ year) *1 | 1.547×10 10 | 1.091×10 10 | 4.55×10 9 |
| Usage standard coal (kg/) *2 | 1.944×10 10 | 1.372×10 10 | 5.730×10 9 |
| Produce oxides of nitrogen (kg/) *3 | 1.36×10 8 | 9.600×10 7 | 4.01×10 7 |
| Produce sulphuric dioxide (kg/) *4 | 3.111×10 8 | 2.195×10 8 | 9.161×10 7 |
| Produce carbon dioxide (kg/) *5 | 5.056×10 10 | 3.567×10 10 | 1.489×10 10 |
| Produce flue dust (kg/) *6 | 2.917×10 8 | 2.058×10 8 | 8.588×10 7 |
| Consume the electricity charge (unit/year) *7 | 2.97×10 10 | 2.0955×10 10 | 8.745×10 9 |
If can show that the whole nation is promoted the use of by upper table, then the electricity about can saved by desktop computer in the mode one hour of putting out screen is 0.015KWh, and the electricity that notebook about can be saved is 0.01KWh.Then by the desktop computer inoperation bright screen 1.2 hours of China 60% in one day, the notebook computer inoperation bright screen of 50% 1.2 hours, calculated with 1 year 300 days, then the savable electric energy of this device reaches 1.59 × 1010kwh, by often spending electric national electricity price average price 0.55 yuan calculating, then can save about 87.45 hundred million yuan every year.And the energy-saving and emission-reduction benefit caused by economizing on electricity also has the effect of highly significant.
And this kind calculates or Conservative estimation, both do not add up by the standby savable energy consumption of this device, do not calculated the use amount of the place computers such as Internet bar yet.Add situation of today, the popularity rate of computer is more and more higher, screen is increasing, and resolution is more and more higher, multi-screen computer is more and more general, if automatically cease screen when nobody, and can when nobody timing shutdown or standby, this all will fall lower powered loss greatly, for great riches is saved by country.
By reference to the accompanying drawings embodiment of the present utility model is described although above-mentioned; but the restriction not to utility model protection scope; one of ordinary skill in the art should be understood that; on the basis of the technical solution of the utility model, those skilled in the art do not need to pay various amendment or distortion that creative work can make still in protection domain of the present utility model.
Claims (8)
1. a computer display screen energy-saving control device, it is characterized in that: comprising having unmanned human body sensing part for responding to, forcing the light-inductive part of display screen automatic regulating lightness, control section and connect the coupling arrangement of described computer display screen energy-saving control device and PC for induction light, wherein, described human body sensing part is arranged on the side of control section, light-inductive part is installed on described control section, and be exposed in external environment, described coupling arrangement is connected with described control section.
2. control device according to claim 1, is characterized in that: described human body sensing part is arranged on one end of described control section by runing rest, and can 360 ° of rotations.
3. control device according to claim 1, is characterized in that: described control section is single-chip microcomputer.
4. control device according to claim 3, is characterized in that: described single-chip microcomputer is MSP430 single-chip microcomputer.
5. control device according to claim 1, is characterized in that: described human body sensing part is infrared sensor of the human body.
6. control device according to claim 5, is characterized in that: described infrared sensor of the human body is HC-SR501 infrared sensor of the human body.
7. control device according to claim 1, is characterized in that: described light-inductive part is several photo-resistors.
8. control device according to claim 1, is characterized in that: described coupling arrangement is USB interface.
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106297733A (en) * | 2016-10-01 | 2017-01-04 | 奇酷互联网络科技（深圳）有限公司 | Screen intensity Automatic adjustment method and device |
| CN108646907A (en) * | 2018-04-18 | 2018-10-12 | Oppo广东移动通信有限公司 | Back light brightness regulating method and Related product |
| CN113763805A (en) * | 2020-06-01 | 2021-12-07 | 明基智能科技（上海）有限公司 | Display device and driving method thereof |
| CN114428538A (en) * | 2022-04-06 | 2022-05-03 | 深圳市德航智能技术有限公司 | Industrial tablet computer capable of automatically adjusting brightness |
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2015
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106297733A (en) * | 2016-10-01 | 2017-01-04 | 奇酷互联网络科技（深圳）有限公司 | Screen intensity Automatic adjustment method and device |
| CN108646907A (en) * | 2018-04-18 | 2018-10-12 | Oppo广东移动通信有限公司 | Back light brightness regulating method and Related product |
| CN113763805A (en) * | 2020-06-01 | 2021-12-07 | 明基智能科技（上海）有限公司 | Display device and driving method thereof |
| CN114428538A (en) * | 2022-04-06 | 2022-05-03 | 深圳市德航智能技术有限公司 | Industrial tablet computer capable of automatically adjusting brightness |
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