CN102779499B - Display power-economizing method - Google Patents
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Abstract
The present invention relates to a kind of display power-economizing method, mainly generate training sample in advance, and pass through the image information in image capture device Real-time Collection display front, and this image is scanned, use Face datection, judge whether to there is face, if there is no face, then produce subscriber free signal, and exported and Energy Saving Control is carried out to display; Otherwise, further use human eye detection technique, intercept the region at human eye place, extract feature and generate test sample book, itself and training sample are compared, to produce the control signal of subscriber-busy signal or subscriber free signal, and is exported the working method controlling display, solve the waste due to the energy caused when display leaves unused thus, overcome the shortcoming of now methodical high error rate and poor experience sense.
Description
Technical field
The present invention relates to a kind of power-economizing method, espespecially a kind of power-economizing method be applied on display.
Background technology
Along with being showing improvement or progress day by day of science and technology, infotech is in the widespread use of economic society every field, and meanwhile, earth resources is constantly consumed and causes many environmental problems, the global warming issue that the discharge of such as a large amount of carbon dioxide causes.In daily life and work, people are usually not related to computer monitor or televisor, and have wasted resource, cause unnecessary resource consumption.
For the display of computing machine, the power of liquid crystal display of one 17 cun is 30w, suppose in one day, have 2 hours displays to be idle state, 0.03 degree of electricity then within one hour, will be consumed in vain, often spend 0.7 yuan of calculating with commercial power, then a computing machine is every year by waste 0.03 × 2 × 0.7 × 365=15.33 unit; Calculate with 100 computing machines, within 1 year, then will waste 1533 yuan.For 100 32 cun and power is the liquid crystal TV set of 250w, within 1 year, then will waste 12775 yuan, this is a googol, can not ignore.
In order to save the unnecessary wasting of resources, industry then adopts advanced luminescent material, improves the making material of display, but needed for this kind of advanced luminescent material, cost is very high, so, then adds the cost of manufacture of display; Again or utilize such as infrared induction mode to detect people apart from the distance of display, to realize automatic switching, but the disadvantage of its method is the impact being easily subject to barrier, thus is closed by display mistakenly, use to user and make troubles, reduce the experience sense of user.
Therefore, how to provide a kind of and can have power-economizing method easy to use concurrently while not increasing display cost of manufacture, to overcome the problem existing for prior art, just become the problem that current industry is anxious to be overcome.
Summary of the invention
In view of the shortcoming of above-mentioned prior art, technical matters to be solved by this invention is: the working method in real time, effectively controlling display, and then the reduction realizing energy consumption.
Another object of the present invention is to provide a kind of display power-economizing method possessing better experience sense and low error rate.
For achieving the above object and other objects, display power-economizing method provided by the present invention, it comprises: (1) generates training sample in advance, and is stored; (2) periodically gathered the image information in display front by an image capture device, and exported; (3) scan collected image information, and make corresponding process according to the training sample stored and judge, to produce a control signal, and exported, described control signal is subscriber-busy signal or subscriber free signal; And (4) receive described control signal, if be subscriber-busy signal, then keep display normal operating conditions or make display enter wake-up states, if be subscriber free signal, then reduce the brightness of display or make display enter sleep state.
In more detail, described step (1) comprises further: (1-1) gathers image information by described image capture device, and collect face image pattern in described image information, and carry out Face datection, the region at face place to be detected; (1-2) in the region at detected face place, human eye detection technique is used to intercept the region at human eye place, and truncated picture is labeled as training sample and is stored, described training sample is respectively duty sample and off working state sample; And (1-3) is to duty sample and off working state sample extraction feature, and statistical study and machine learning are carried out to positive and negative two aspects of feature of duty sample and inoperative sample, to generate user working status sorter and user's off working state sorter respectively, and stored.Wherein, duty state sample is the eye image sample of user when watching display attentively, the eye image sample of described off working state sample when to be that user is non-watch display attentively.And the sorter that machine learning is employing pyramid coupling accounting method identification test sample book is user working status sorter or user's off working state sorter.
In addition, described step (3) comprises further: (3-1), to collected image information end user face detection tech, detects whether there is face, if so, then carry out next step, otherwise, proceed to step (3-4); (3-2) in the region at detected face place, use human eye detection skill to intercept human eye region, extract characteristics of image, the feature extracted is generated test sample book; (3-3) algorithm of stored training sample and test sample book picture analogies degree is compared, judge that the test sample book extracted is user working status sorter or user's off working state sorter, if user working status sorter, then generate subscriber-busy signal, and proceed to step (3-5), otherwise, carry out next step; (3-4) subscriber free signal is generated; And subscriber-busy signal or subscriber free signal are exported by (3-5).
Described step (3) comprises further after receiving subscriber free signal, reduces display brightness, and after a certain time, if user uses display not yet, then controls display and enter sleep state.
Described step (4) comprises the described control signal of reception further and coordinates display current operating state, and determine next step duty of display: when display is current be in high performance state time, if control signal is subscriber-busy signal, then keep the normal work of display, otherwise, reduce the brightness of display, make display enter low performance state; When display is current be in low performance state time, if control signal continuous several times is subscriber free signal, then make display enter sleep state; If once control signal is subscriber-busy signal, then wake display up at once, it is made to enter high performance state; Otherwise, keep the low performance state of display; And when display is current be in sleep state time, if control signal is subscriber-busy signal, then wake display up at once, make it to enter high performance state; Otherwise, keep the sleep state of display.
Below in conjunction with technique scheme, Advantageous Effects of the present invention is described.Compared to prior art, the present invention relates generally to the image information by an image capture device Real-time Collection display front, and gathered image information is scanned, and the current duty of user is busy condition or idle condition to coordinate the training sample that generates in advance to judge, and according to this dynamically, effectively control the working method of display, with when being judged as busy condition, display is kept normally to work or make display enter wake-up states, when being judged as idle condition, Energy Saving Control is carried out to display, to reduce expending of the energy, and centre does not need user to carry out any operation to it, the working method of display can be regulated voluntarily, make the use of display more intelligent, hommization, achieve man-machine interaction, extremely easy to use, overcome now methodical high error rate and poor experience sense.In addition, the present invention, except the image capture device of such as camera for gathering image information, without any need for other external unit, and then avoids in prior art, adopts advanced luminescent material to make display, causes the drawback that cost increases.Moreover, because the present invention adopts human eye detection technology to scan gathered image information, therefore, be applicable to the working environment of many people, not by the restriction on user number, namely according to the situation of the current use display of user, change the duty of display in real time, accomplish once the eyes of people leave display enter power save mode immediately; When the eye gaze of people display, automatically can wake display up and enter normal mode of operation.
Accompanying drawing explanation
Fig. 1 is the operating process schematic diagram of display power-economizing method of the present invention;
Fig. 2 is the concrete execution step schematic diagram of the step S10 in Fig. 1;
Fig. 3 is the concrete execution step schematic diagram of the step S12 in Fig. 1;
Fig. 4 is the duty transition diagram of display.
[main element symbol description]
S10 ~ S13 step
S100 ~ S102 step
S120 ~ S125 step
0 subscriber free signal
1 subscriber-busy signal
00 display enters sleep state
01 display low performance state
11 displays reach peak performance
Embodiment
Below by way of specific instantiation, embodiments of the present invention are described, those of ordinary skill in the field can understand other advantages of the present invention and effect easily by content disclosed in the present specification.The present invention is also implemented by other different instantiations or is applied, and the every details in this instructions also can based on different viewpoints and application, carries out various modification and change not deviating under spirit of the present invention.
As shown in Figure 1, it is the operational flowchart showing display power-economizing method of the present invention.Below namely composition graphs 2 to Fig. 4 describes the concrete operation step of display power-economizing method of the present invention in detail.
First, perform step S10, generate training sample in advance, and stored.Specifically, refer to Fig. 2, generate training sample as follows: first, in the step s 100, gather image information by an image capture device, and collect face image pattern in described image information, and carry out Face datection, the region at face place to be detected, then, step S101 is carried out, in step S101, in the region at detected face place, human eye detection technique is used to intercept the region at human eye place, and truncated picture is labeled as training sample, described training sample is respectively duty sample and off working state sample, wherein, this duty state sample is the eye image sample of user when watching display attentively, and the off working state sample eye image sample that to be user non-when watching display attentively, then, carry out step S102, in step s 102, to duty sample and off working state sample extraction feature, and statistical study and machine learning are carried out to positive and negative two aspects of feature of duty sample and inoperative sample, to generate user working status sorter and user's off working state sorter respectively, wherein, this machine learning is the sorter adopting pyramid to mate accounting method identification test sample book is be user working status sorter or user's off working state sorter, in addition, because pyramid coupling accounting method is the technology that those skilled in the art notify, therefore, be not described in detail in this.In the present embodiment, this image capture device can be such as camera.And this image capture device can directly be embedded in display, also can be connected with display by external interface as external unit.In addition, Face datection mentioned in the present embodiment and human eye detection are technology well known to those skilled in the art, therefore, in this no longer for literary composition repeats.
Then, step S11 is carried out.
In step s 11, periodically gathered the image information in display front by this image capture device, and exported.Preferably, this image capture device adopts the circulation progressive cycle in the time interval constantly to gather the image information in display front, with monitor user ' current state.If display does not enter sleep state, this image capture device every 1-10 gathers an image information second, to detect the duty of a user; If display enters sleep state, this image capture device every 1-30 gathers an image information second, to detect the current duty of user.But the time cycle that image capture device gathers image information is not limited listed by above-mentioned, closes first Chen Ming.Then, step S12 is carried out.
In step s 12, scan collected image information, and make corresponding process according to the training sample database generated in advance and judge, to produce a control signal, and exported, described control signal is subscriber-busy signal or subscriber free signal.Specifically, refer to Fig. 3, be perform as follows process and judgement operation to produce corresponding control signal: first, in the step s 120, to collected image information end user face detection tech, detect and whether there is face, if detect that face exists, then carry out step S121, otherwise, then think user not at use display, and proceed to step S124; In step S121, in the region at detected face place, use human eye detection skill to intercept human eye region, extract characteristics of image, the feature extracted is generated test sample book, then, carries out step S122; In step S122, the algorithm of stored training sample and test sample book picture analogies degree is compared, judge that the test sample book extracted is user working status sorter or user's off working state sorter, if user working status sorter, then proceed to step S123, otherwise, proceed to step S124; In step S123, generate subscriber-busy signal, then, carry out step S125; In step S124, generate subscriber free signal, then, carry out step S125; In step s 125, subscriber-busy signal or subscriber free signal are exported.Need to be explained, the algorithm due to picture analogies degree is the technology that those skilled in the art notify herein, therefore, be not described in detail in this.
Then, step S13 is carried out.
In step s 13, receive described control signal, if be subscriber-busy signal, then keep display normal operating conditions or make display enter wake-up states, if be subscriber free signal, then Energy Saving Control is carried out to display, such as, reduce display brightness or make display enter sleep state.Specifically, be receive described control signal coordinate display current operating state, and determine next step duty of display: keep normal work, the sleep state of display, reduce its brightness or wake-up states.
The various duty of display and conversion process as follows:
A) display will be in 3 states:
1) high performance state, i.e. the display brightness value of user's setting.
2) low performance state, namely system reduces the brightness value of display.
3) sleep state, namely display enters sleep power save mode.
B) display state conversion process available display duty transition diagram is stated, and in detail as shown in Figure 4, wherein, 1 in figure represents that control signal is subscriber-busy signal, and 0 represents that control signal is subscriber free signal; U0U1 represents the state that display is current, and (i.e. U0U1=11, represents that display reaches peak performance; U0U1=00, represents that display enters sleep state; U0U1=01, represents display low performance state), detailed process is as follows:
1) when display is current be in high performance state time, if control signal is subscriber-busy signal, then keep the normal work of display; Otherwise, reduce the brightness of display, make display enter low performance state.
2) when display is current be in low performance state time, if control signal continuous be for n time subscriber free signal, then make display enter sleep state; If once control signal is subscriber-busy signal, then wake display up at once, it is made to enter high performance state; Otherwise, keep the low performance state of display.
3) when display is current be in sleep state time, if control signal is subscriber-busy signal, then wake display up at once, make it to enter high performance state; Otherwise, keep the sleep state of display.
In engineering practice, on the many levels face of display, the effective management of various ways realization to the duty of display can be used: by the mode of hardware, can directly control the parts of display interior, complete the function reconciled brightness and enter sleep; Also can use the mode of software, in the aspect of operating system, by the application programming interfaces (API) using operating system to provide, display be controlled.In a word, can according to the difference of embody rule environment, selected different method for designing, realizes, to the Energy Saving Control of display, describing in detail no longer one by one in this.
In sum, the present invention is mainly through the image information in the image capture device Real-time Collection display front of a such as camera, and adopt face and this image information of human eye detection technology to analyze, and the current duty of user is busy condition or idle condition to coordinate the training sample that generates in advance to judge, and correspondingly adjust the working method of display, as reduced the brightness of display or making it enter sleep state, thus significantly reduce the energy consumption of display.And the present invention is except the image capture device of such as camera for gathering image information, without any need for other external unit, avoid in prior art and use energy-conservation effect to reach display, and the defect of corresponding increase display manufacturing cost.Moreover the present invention has good man-machine interaction, and be applicable to many people user, according to the situation of the current use display of user, the duty of display can be changed in real time, accomplish once the eyes of people leave display enter power save mode immediately; When the eye gaze of people display, automatically can wake display up and enter normal mode of operation.
Above-described embodiment is illustrative principle of the present invention and effect thereof only, but not for limiting the present invention.Any person of an ordinary skill in the technical field all without prejudice under spirit of the present invention and category, can carry out modifying to above-described embodiment and changes.Therefore, the scope of the present invention, should listed by the scope of appending claims.
Claims (8)
1. a display power-economizing method, it comprises:
(1) generate training sample in advance, and stored;
(2) periodically gathered the image information in display front by an image capture device, and exported;
(3) collected image information is scanned, first to collected image information end user face detection tech, detect whether there is face, if can't detect face, produce one and be the control signal of subscriber free signal and exported; If face detected, then in the region at detected face place, human eye detection technique is used to intercept human eye region, extract characteristics of image, the feature extracted is generated test sample book and makes corresponding process according to the training sample stored and judge, to produce the control signal that is subscriber-busy signal or subscriber free signal, and exported; And
(4) receive described control signal and coordinate display current operating state, and determining next step duty of display:
When display is current be in high performance state time, if control signal is subscriber-busy signal, then keep the normal work of display, otherwise, reduce the brightness of display, make display enter low performance state;
When display is current be in low performance state time, if control signal continuous several times is subscriber free signal, then make display enter sleep state; If once control signal is subscriber-busy signal, then wake display up at once, it is made to enter high performance state; Otherwise, keep the low performance state of display; And
When display is current be in sleep state time, if control signal is subscriber-busy signal, then wake display up at once, make it to enter high performance state; Otherwise, keep the sleep state of display.
2. display power-economizing method according to claim 1, is characterized in that, described step (1) comprises further:
(1-1) gather image information by described image capture device, and collect face image pattern in described image information, and carry out Face datection, the region at face place to be detected;
(1-2) in the region at detected face place, human eye detection technique is used to intercept the region at human eye place, and truncated picture is labeled as training sample and is stored, described training sample is respectively duty sample and off working state sample; And
(1-3) to duty sample and off working state sample extraction feature, and statistical study and machine learning are carried out to positive and negative two aspects of feature of duty sample and inoperative sample, to generate user working status sorter and user's off working state sorter respectively, and stored.
3. display power-economizing method according to claim 2, is characterized in that, described duty sample is the eye image sample of user when watching display attentively, the eye image sample of described off working state sample when to be that user is non-watch display attentively.
4. display power-economizing method according to claim 2, is characterized in that, described machine learning is the sorter adopting pyramid to mate accounting method identification test sample book is be user working status sorter or user's off working state sorter.
5. display power-economizing method according to claim 2, is characterized in that, described step (3) comprises further:
(3-1) to collected image information end user face detection tech, detect whether there is face, if so, then carry out next step, otherwise, proceed to step (3-4);
(3-2) in the region at detected face place, use human eye detection skill to intercept human eye region, extract characteristics of image, the feature extracted is generated test sample book;
(3-3) algorithm of stored training sample and test sample book picture analogies degree is compared, judge that the test sample book extracted is user working status sorter or user's off working state sorter, if user working status sorter, then generate subscriber-busy signal, and proceed to step (3-5), otherwise, carry out next step;
(3-4) subscriber free signal is generated; And
(3-5) subscriber-busy signal or subscriber free signal are exported.
6. display power-economizing method according to claim 1, is characterized in that, under display does not enter sleep state, described step (1) is with the cycle collection image information of 1-10 second.
7. display power-economizing method according to claim 1, is characterized in that, under display enters sleep state, described step (1) is with the cycle collection image information of 1-30 second.
8. display power-economizing method according to claim 1, is characterized in that, described step (1) constantly gathers image information at progressive time of circulating.
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| CN104076898B (en) * | 2013-03-27 | 2018-10-26 | 腾讯科技（深圳）有限公司 | A kind of method and apparatus of control mobile terminal screen brightness |
| CN103281064B (en) * | 2013-04-19 | 2016-08-24 | 四川长虹电器股份有限公司 | A kind of realize the method and device that household electrical appliances are energy-conservation |
| CN103257877A (en) * | 2013-05-06 | 2013-08-21 | 苏州三星电子电脑有限公司 | Automatic sleep control system of display device and control method thereof |
| CN103618944A (en) * | 2013-11-27 | 2014-03-05 | 乐视网信息技术（北京）股份有限公司 | Method for controlling video and user terminal |
| CN103702155B (en) * | 2013-12-06 | 2018-08-10 | 乐视致新电子科技（天津）有限公司 | A kind of TV control method and device |
| CN105286867A (en) * | 2014-06-24 | 2016-02-03 | 中兴通讯股份有限公司 | Method and device for collecting voice information |
| CN105338284A (en) * | 2014-07-08 | 2016-02-17 | 华为技术有限公司 | Method, device and system used for carrying out multi-point video communication |
| CN105119878B (en) * | 2015-07-07 | 2018-07-31 | 环玺信息科技（上海）有限公司 | A kind of implementation method of wireless internet of things |
| CN106791000A (en) * | 2016-11-28 | 2017-05-31 | 上海斐讯数据通信技术有限公司 | A kind of digital product and its sleep management method |
| CN107357409B (en) * | 2017-06-30 | 2021-01-15 | 联想(北京)有限公司 | Information processing method and electronic equipment |
| CN109302626B (en) | 2018-10-22 | 2021-01-26 | 京东方科技集团股份有限公司 | Video playing system and video playing method |
| CN109597599A (en) * | 2018-12-03 | 2019-04-09 | 郑州云海信息技术有限公司 | A kind of control method of display screen, device, equipment and storage medium |
| CN109582268A (en) * | 2018-12-11 | 2019-04-05 | 浪潮(北京)电子信息产业有限公司 | A kind of display panel control method, device and system |
| CN111399627B (en) * | 2020-03-09 | 2021-09-28 | 宁波视睿迪光电有限公司 | Energy-saving method and system for 3D display device |
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