CN102779499A - Energy-saving method for displayer - Google Patents
Energy-saving method for displayer Download PDFInfo
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Abstract
The invention relates to an energy-saving method for a displayer. The method comprises the following steps of pre-generating a training sample; acquiring information of an image in front of the displayer in real time through image acquisition equipment; scanning the image; judging whether a human face exists or not by human face detection technology, if the human face does not exist, generating a user free signal, and outputting the signal to perform energy conservation on the displayer; and if the human face exists, further by human eye detection technology, intercepting an area where the human eyes are, extracting characteristics to generate a test sample, comparing the test sample with the training sample so as to generate a control signal of a user busy signal or a user free signal, and outputting the control signal to control the working way of the displayer. Therefore, the problem of energy source waste caused when the displayer is idle is solved, and the defects of high error rate and poor experience feeling of the current method are overcome.
Description
Technical field
The present invention relates to a kind of power-economizing method, refer to a kind of power-economizing method that is applied on the display especially.
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 simultaneously, earth resources constantly is consumed and causes many environmental problems, the global warming issue that causes such as a large amount of emission of carbon-dioxide.In daily life and work, people usually have nothing to do with computer monitor or televisor, and have wasted resource, have caused unnecessary resource consumption.
Display with computing machine is an example; One 17 cun power of liquid crystal display is 30w; Suppose that it is idle state that 2 hours displays were arranged in one day; Then will consume 0.03 degree electricity in one hour in vain, with 0.7 yuan of calculating of the every degree of commercial power, then a computing machine will be wasted 0.03 * 2 * 0.7 * 365=15.33 unit every year; Calculate with 100 computing machines, then will waste 1533 yuan in 1 year.For 100 32 cun and power is the liquid crystal TV set of 250w, then will waste 12775 yuan in 1 year, and this is a googol, can not ignore.
In order to save the unnecessary wasting of resources, industry then adopts advanced luminescent material, and the manufacturing materials of display is improved, and still, the required cost of this kind advanced luminescent material is very high, so, has then increased the cost of manufacture of display; Again or for example utilize that the infrared induction mode detects the distance of people apart from display; With the realization automatic switching, but the disadvantage of its method is the influence that receives barrier easily, thereby by error display is closed; Make troubles to user's use, reduced sense of experience of users.
Therefore, how to provide a kind of and can when not increasing the display cost of manufacture, have power-economizing method easy to use concurrently,, just become present industry problem anxious to be overcome to overcome the existing in prior technology problem.
Summary of the invention
In view of the shortcoming of above-mentioned prior art, technical matters to be solved by this invention is: control the working method of display in real time, effectively, and then realize the reduction of energy consumption.
Another object of the present invention is to provide a kind of display power-economizing method that possesses preferable experience sense and low error rate.
For achieving the above object and other purposes, display power-economizing method provided by the present invention, it comprises: (1) generates training sample in advance, and stores; (2) periodically gather the image information in display the place ahead through an image capture device, and export; (3) image information that is collected is scanned, and make corresponding processing and judgement according to institute's stored training sample, producing a control signal, and export, said control signal is subscriber-busy signal or subscriber free signal; And (4) receive said control signal, if be subscriber-busy signal, then keep the display normal operating conditions or make display get into wake-up states, if be subscriber free signal, then reduces the brightness of display or make display entering sleep state.
More detailed it, said step (1) further comprises: (1-1) through said image capture device images acquired information, and in said image information collector's face image pattern, and carry out people's face and detect, to detect the zone that people's face belongs to; (1-2) in the zone at detected people's face place, use the zone at human eye detection technique intercepting human eye place, and truncated picture is labeled as training sample and stores, said training sample is respectively duty sample and off working state sample; And (1-3) to duty sample and off working state sample extraction characteristic; And positive and negative two aspects of the characteristic of duty sample and inoperative sample are carried out statistical study and machine learning; Generating user job state classification device and user's off working state sorter respectively, and store.Wherein, the eye image sample when the eye image sample when the duty state sample is being watched display attentively for the user, said off working state sample are being watched display attentively for the user is non-.And machine learning is that the sorter that adopts pyramid coupling accounting method to discern test sample book is to be user job state classification device or user's off working state sorter.
In addition, said step (3) further comprises: (3-1) image information end user's face detection tech to being collected, detect whether there is people's face, if, then carry out next procedure, otherwise, proceed to step (3-4); (3-2) in the zone at detected people's face place, use human eye detection skill intercepting human eye region, extract characteristics of image, the characteristic of extracting is generated test sample book; (3-3) institute's stored training sample and the test sample book algorithm with the picture analogies degree is compared; Judge that the test sample book of being extracted is user job state classification device or user's off working state sorter; If user job state classification device then generates subscriber-busy signal, and proceed to step (3-5); Otherwise, carry out next step; (3-4) generate subscriber free signal; And (3-5) subscriber-busy signal or subscriber free signal are exported.
Said step (3) further comprises after receiving subscriber free signal, reduces display brightness, and behind certain hour, if the user does not use display yet, then controls display and get into sleep state.
Said step (4) further comprises the said control signal of reception and cooperates display work at present state; And next step duty of decision display: when display is current when being in high performance state; If control signal is a subscriber-busy signal, then keep the operate as normal of display, otherwise; Reduce the brightness of display, make display get into low performance state; When display is current when being in low performance state,, then make display get into sleep state if the control signal continuous several times is a subscriber free signal; In case if control signal is a subscriber-busy signal, then wake display at once up, make it get into high performance state; Otherwise, the low performance state of maintenance display; And,, then wake display at once up if control signal is a subscriber-busy signal when display is current when being in sleep state, make it to get into high performance state; Otherwise, the sleep state of maintenance display.
Below in conjunction with technique scheme, useful technique effect of the present invention is described.Than prior art, the present invention relates generally to the image information of gathering display the place ahead through an image capture device in real time, and the image information of being gathered is scanned; And cooperating the training sample judges current working state that generates in advance is busy condition or idle condition, and controls the working method of display dynamically, effectively according to this, with when being judged as busy condition; Keep the display operate as normal or make display get into wake-up states, when being judged as idle condition, display is carried out Energy Saving Control; Reducing expending of the energy, and the centre do not need the user that it is carried out any operation, can regulate the working method of display voluntarily; Make more intellectuality, the hommization of use of display; Realized man-machine interaction, extremely easy to use, overcome the high error rate of existing method and relatively poor experience sense.In addition, the present invention without any need for other external unit, and then avoids in the prior art except the image capture device of the for example camera that is used for images acquired information, adopts advanced luminescent material to make display, the drawback that causes cost to increase.Moreover; Because the present invention adopts the human eye detection technology that the image information of being gathered is scanned, so, many people's working environment be applicable to; Do not receive the restriction on the user number; Promptly, change the duty of display in real time, in case accomplish that people's eyes leave display and get into power save mode immediately according to the situation of the current use display of user; When people's eye gaze display, can wake display automatically up and get into normal mode of operation.
Description of drawings
Fig. 1 is the operating process synoptic diagram of display power-economizing method of the present invention;
Fig. 2 is the concrete execution in step synoptic diagram of the step S10 among Fig. 1;
Fig. 3 is the concrete execution in step synoptic diagram of the step S12 among Fig. 1;
Fig. 4 is the duty conversion synoptic 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 gets into sleep state
01 display low performance state
11 displays reach peak performance
Embodiment
Below through specific instantiation embodiment of the present invention is described, the those of ordinary skill in affiliated field can be understood other advantages of the present invention and effect easily by the content that this instructions disclosed.The present invention also can implement or use through other different instantiations, and each item details in this instructions also can be based on different viewpoints and application, carries out various modifications and change under the spirit of the present invention not deviating from.
As shown in Figure 1, it is for showing the operational flowchart of display power-economizing method of the present invention.Below promptly combine Fig. 2 to Fig. 4 to specify the concrete operations step of display power-economizing method of the present invention.
At first, execution in step S10 generates training sample in advance, and stores.Particularly, seeing also Fig. 2, is to generate training sample through following steps: at first; In step S100, through an image capture device images acquired information, and in said image information collector's face image pattern; And carrying out people's face detects; To detect the zone at people's face place, then, carry out step S101; In step S101, the zone at detected people's face place, the zone of using human eye detection technique intercepting human eye to belong to; And truncated picture is labeled as training sample, said training sample is respectively duty sample and off working state sample, wherein; Eye image sample when this duty state sample is being watched display attentively for the user; And the off working state sample is then, to carry out step S102 by the eye image sample that the user is non-when watching display attentively; In step S102; To duty sample and off working state sample extraction characteristic, and positive and negative two aspects of the characteristic of duty sample and inoperative sample are carried out statistical study and machine learning, to generate user job state classification device and user's off working state sorter respectively; Wherein, This machine learning is that the sorter that adopts pyramid coupling accounting method to discern test sample book is to be user job state classification device or user's off working state sorter, in addition, because pyramid coupling accounting method is the technology of those skilled in the art's notice; So, be not described in detail in this.In the present embodiment, this image capture device can for example be a camera.And this image capture device can directly be embedded in the display, also can be used as external unit and is connected with display through external interface.In addition, mentioned people's face detects with human eye detection and is technology well known to those skilled in the art in the present embodiment, so, no longer give unnecessary details in this for literary composition.
Then, carry out step S11.
In step S11, periodically gather the image information in display the place ahead through this image capture device, and export.Preferably, this image capture device adopts continuous image information of gathering display the place ahead of progressive cycle in the time interval of circulation, with the monitor user ' current state.If display does not get into sleep state, the every 1-10 of this image capture device gathers image once information second, to detect a user's duty; If display gets into sleep state, the every 1-30 of this image capture device gathers image once information second, to detect user's current working state one time.But the time cycle of image capture device images acquired information is not with above-mentioned listed exceeding, and closes first Chen Ming.Then, carry out step S12.
In step S12, the image information that is collected is scanned, and make corresponding processing and judgement according to the training sample database that generates in advance, producing a control signal, and to export, said control signal is subscriber-busy signal or subscriber free signal.Particularly, see also Fig. 3, be through following steps carry out to handle with decision operation with the generation control signal corresponding: at first; In step S120,, detect whether there is people's face to the image information end user's face detection tech that is collected; Exist if detect people's face, then carry out step S121, otherwise; Think that then the user is not using display, and proceed to step S124; In step S121, human eye detection skill intercepting human eye region is used in the zone at detected people's face place, extracts characteristics of image, and the characteristic of extracting is generated test sample book, then, carries out step S122; In step S122; Institute's stored training sample and the test sample book algorithm with the picture analogies degree is compared; Judge that the test sample book of being extracted is user job state classification device or user's off working state sorter, if user job state classification device then proceeds 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 S125, subscriber-busy signal or subscriber free signal are exported.What need explain is here, because the algorithm of picture analogies degree is the technology of those skilled in the art's notice, so, be not described in detail in this.
Then, carry out step S13.
In step S13, receive said control signal, if be subscriber-busy signal; Then keep the display normal operating conditions or make display get into wake-up states; If be subscriber free signal, then display is carried out Energy Saving Control, for example reduce display brightness or make display get into sleep state.Particularly, be to receive said control signal and cooperate display work at present state, and next step duty of decision display: keep display operate as normal, sleep state, reduce its brightness or wake-up states.
The various duties and the conversion process thereof of display are following:
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, promptly system reduces the brightness value of display.
3) sleep state, promptly display gets into the sleep power save mode.
B) display state conversion process available display duty transition diagram is explained, and is detailed as shown in Figure 4, and wherein, the expression of 1 among figure control signal is a subscriber-busy signal, and 0 expression control signal is a subscriber free signal; U0U1 representes the display current states, and (be U0U1=11, the expression display reaches peak performance; U0U1=00, the expression display gets into sleep state; U0U1=01, expression display low performance state), detailed process is following:
1) when display is current when being in high performance state,, then keeps the operate as normal of display if control signal is a subscriber-busy signal; Otherwise, reduce the brightness of display, make display get into low performance state.
2) when display is current when being in low performance state,, then make display get into sleep state if control signal is a subscriber free signal continuous n time; In case if control signal is a subscriber-busy signal, then wake display at once up, make it get into high performance state; Otherwise, the low performance state of maintenance display.
3) when display is current when being in sleep state,, then wake display at once up, make it to get into high performance state if control signal is a subscriber-busy signal; Otherwise, the sleep state of maintenance display.
In engineering practice, can on the many levels face of display, use multiple mode to realize effective management: can use hardware mode, directly control the parts of display interior, accomplish and reconcile brightness and the function that gets into sleep to the duty of display; Also can use the mode of software, on the aspect of operating system, display controlled through the application programming interfaces (API) that use operating system to provide.In a word, can be according to the difference of concrete applied environment, selected different method for designing realizes the Energy Saving Control to display, details no longer one by one in this.
In sum; The present invention mainly through one for example the image capture device of camera gather the image information in display the place ahead in real time; And adopt people's face and this image information of human eye detection technology to analyze, and to cooperate the training sample judges current working state of generation in advance be busy condition or idle condition, and correspondingly adjust the working method of display; As reduce the brightness of display or make it get into sleep state, thereby reduced the energy consumption of display effectively.And the present invention is except the image capture device of the for example camera that is used for images acquired information; Without any need for other external unit; Avoided using energy-conservation effect in order to reach display in the prior art, and the defective of corresponding increase display manufacturing cost.Moreover the present invention has good man-machine interaction, and is applicable to many human user, can change the duty of display in real time according to the situation of the current use display of user, in case accomplish that people's eyes leave display and get into power save mode immediately; When people's eye gaze display, can wake display automatically up and get into normal mode of operation.
The foregoing description is illustrative principle of the present invention and effect thereof only, but not is used to limit the present invention.The those of ordinary skill of technical field all can be under spirit of the present invention and category under any, and the foregoing description is modified and changed.Therefore, rights protection scope of the present invention, the scope of the claims that should like enclosed is listed.
Claims (10)
1. display power-economizing method, it comprises:
(1) generates training sample in advance, and store;
(2) periodically gather the image information in display the place ahead through an image capture device, and export;
(3) image information that is collected is scanned, and make corresponding processing and judgement according to institute's stored training sample, producing a control signal, and export, said control signal is subscriber-busy signal or subscriber free signal; And
(4) receive said control signal,, then keep the display normal operating conditions or make display get into wake-up states,, then reduce the brightness of display or make display get into sleep state if be subscriber free signal if be subscriber-busy signal.
2. display power-economizing method according to claim 1 is characterized in that, it is characterized in that, said step (1) further comprises:
(1-1) through said image capture device images acquired information, and in said image information collector's face image pattern, and carry out people's face and detect, to detect the zone at people's face place;
(1-2) in the zone at detected people's face place, use the zone at human eye detection technique intercepting human eye place, and truncated picture is labeled as training sample and stores, said training sample is respectively duty sample and off working state sample; And
(1-3) to duty sample and off working state sample extraction characteristic; And positive and negative two aspects of the characteristic of duty sample and inoperative sample are carried out statistical study and machine learning; Generating user job state classification device and user's off working state sorter respectively, and store.
3. display power-economizing method according to claim 2 is characterized in that, the eye image sample when the eye image sample when said duty state sample is being watched display attentively for the user, said off working state sample are being watched display attentively for the user is non-.
4. display power-economizing method according to claim 2 is characterized in that, said machine learning is that the sorter that adopts pyramid coupling accounting method to discern test sample book is to be user job state classification device or user's off working state sorter.
5. display power-economizing method according to claim 2 is characterized in that, said step (3) further comprises:
(3-1) the image information end user's face detection tech to being collected detects whether there is people's face, if, then carry out next procedure, otherwise, proceed to step (3-4);
(3-2) in the zone at detected people's face place, use human eye detection skill intercepting human eye region, extract characteristics of image, the characteristic of extracting is generated test sample book;
(3-3) institute's stored training sample and the test sample book algorithm with the picture analogies degree is compared; Judge that the test sample book of being extracted is user job state classification device or user's off working state sorter; If user job state classification device then generates subscriber-busy signal, and proceed to step (3-5); Otherwise, carry out next step;
(3-4) generate subscriber free signal; 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, said step (3) further comprises after receiving subscriber free signal; Reduce display brightness; And behind certain hour,, then control display and get into sleep state if the user does not use display yet.
7. display power-economizing method according to claim 1 is characterized in that, under display did not get into sleep state, said step (1) was with the 1-10 cycle images acquired information of second.
8. display power-economizing method according to claim 1 is characterized in that, gets under the sleep state at display, and said step (1) is with the 1-30 cycle images acquired information of second.
9. display power-economizing method according to claim 1 is characterized in that, said step (1) is with continuous images acquired information of the progressive time of circulating.
10. display power-economizing method according to claim 1 is characterized in that, said step (4) further comprises and receive said control signal and cooperate display work at present state, and next step duty of decision display:
When display is current when being in high performance state, if control signal is a subscriber-busy signal, then keep the operate as normal of display, otherwise, reduce the brightness of display, make display get into low performance state;
When display is current when being in low performance state,, then make display get into sleep state if the control signal continuous several times is a subscriber free signal; In case if control signal is a subscriber-busy signal, then wake display at once up, make it get into high performance state; Otherwise, the low performance state of maintenance display; And
When display is current when being in sleep state, if control signal is a subscriber-busy signal, then wake display at once up, make it to get into high performance state; Otherwise, the sleep state of maintenance display.
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| 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 |
| CN111399627A (en) * | 2020-03-09 | 2020-07-10 | 宁波视睿迪光电有限公司 | Energy-saving method and system for 3D display device |
| 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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