CN103021319B - A kind of saving energy of screen display packing and device - Google Patents
A kind of saving energy of screen display packing and device Download PDFInfo
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- CN103021319B CN103021319B CN201210566083.1A CN201210566083A CN103021319B CN 103021319 B CN103021319 B CN 103021319B CN 201210566083 A CN201210566083 A CN 201210566083A CN 103021319 B CN103021319 B CN 103021319B
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Abstract
The present invention relates to field of screen display, be specifically related to a kind of saving energy of screen display packing and device.Described method comprises the steps: to gather surround lighting light intensity, and is carried out pre-service and be converted to digital signal; Judge that the surround lighting light intensity belonging to surround lighting light intensity is interval by digital signal; The surround lighting light intensity interval pre-set according to affiliated surround lighting light intensity interval query and the corresponding table of pulse-width signal, determine the pulse-width signal exported; The brightness being controlled screen by pulse-width signal is exported.The present invention is by corresponding with pulse-width signal for surround lighting light intensity, corresponding pulse-width signal is inquired about by gathering surround lighting light intensity, the brightness of screen is controlled by pulse-width signal, make screen difference environmentally automatically can carry out brightness regulation, decrease the waste of electric energy, but also avoid screen and be in high brightness state for a long time, extend the serviceable life of screen.
Description
Technical field
The present invention relates to field of screen display, be specifically related to a kind of saving energy of screen display packing and device.
Background technology
Existing display screen is widely applied to various place, as the advertisement screen of outdoor, indoor dispatch control display screen, welcome display screen, meeting display screen etc.But the place of screen application is different, and the brightness of its surrounding environment is also different, and surrounding environment also changes along with the change of daytime, night and weather, causes the brightness of surrounding environment also to change to some extent.When ambient brightness constantly changes, screen keeps same high brightness always, not only not energy-conservation, also has influence on the visual experience of user, and unmanned before display screen, and display screen is still with high brightness display, and waste electric energy, shortens the life-span of display screen.
Summary of the invention
The technical matters that the present invention solves overcomes the deficiencies in the prior art, provides the difference of the intelligent environmentally light of a kind of energy to carry out the saving energy of screen display packing of adjusting screen brightness.
The present invention also provides the difference of the intelligent environmentally light of a kind of energy to carry out the saving energy of screen display device of adjusting screen brightness.
Object of the present invention is achieved through the following technical solutions:
A kind of saving energy of screen display packing, comprises the steps:
Gather surround lighting light intensity, and carried out pre-service and be converted to digital signal;
Judge that the surround lighting light intensity belonging to surround lighting light intensity is interval by digital signal;
The surround lighting light intensity interval pre-set according to affiliated surround lighting light intensity interval query and the corresponding table of pulse-width signal, determine the pulse-width signal exported;
The brightness being controlled screen by pulse-width signal is exported.
A kind of saving energy of screen display device, comprises screen, also comprise connect successively optical sensing module, light intensity interval determination module, pulse-width signal enquiry module and screen intensity control module, described screen intensity controls to be connected with screen; Wherein,
Optical sensing module, for gathering surround lighting light intensity, and is carried out pre-service and is converted to digital data transmission to the interval determination module of light intensity;
The interval determination module of light intensity, it is interval that it pre-sets surround lighting light intensity, judges that the surround lighting light intensity interval belonging to surround lighting light intensity is transferred to pulse-width signal enquiry module for the digital signal by receiving;
Pulse-width signal enquiry module, it pre-sets the interval corresponding table with pulse-width signal of surround lighting light intensity, for corresponding table with pulse-width signal interval according to affiliated surround lighting light intensity interval query surround lighting light intensity, determine that the pulse-width signal exported transfers to screen intensity control module;
Screen intensity control module, exports for the brightness controlling screen according to the pulse-width signal received.
Compared with prior art, the beneficial effect of technical solution of the present invention is:
The present invention is by corresponding with pulse-width signal for surround lighting light intensity, corresponding pulse-width signal is inquired about by gathering surround lighting light intensity, the brightness of screen is controlled by pulse-width signal, make screen difference environmentally automatically can carry out brightness regulation, decrease the waste of electric energy, but also avoid screen and be in high brightness state for a long time, extend the serviceable life of screen.
Accompanying drawing explanation
Fig. 1 is the process flow diagram of a kind of saving energy of screen display packing embodiment 1 in the present invention;
Fig. 2 is the interval exemplary plot shown corresponding to pulse-width signal of ambient light light intensity of the present invention;
Fig. 3 is the process flow diagram of a kind of saving energy of screen display packing embodiment 2 in the present invention;
Fig. 4 adopts infrared induction detector as the structural representation of sniffer on screen in the specific embodiment of the invention;
Fig. 5 adopts infrared induction detector as the structural representation of sniffer on screen in the specific embodiment of the invention;
Fig. 6 adopts camera as the structural representation of sniffer on screen in the specific embodiment of the invention;
Fig. 7 is the structural representation of a kind of saving energy of screen display device embodiment 3 in the present invention;
Fig. 8 is the structural representation of a kind of saving energy of screen display device embodiment 4 in the present invention.
Embodiment
Below in conjunction with drawings and Examples, technical scheme of the present invention is described further.
Embodiment 1
See Fig. 1, it is the process flow diagram of a kind of saving energy of screen display packing embodiment of the present invention.As shown in Figure 1, the saving energy of screen display packing of this embodiment specifically comprises the steps:
Step S101, gathers surround lighting light intensity, and is carried out pre-service and be converted to digital signal;
By digital signal, step S102, judges that the surround lighting light intensity belonging to surround lighting light intensity is interval; Wherein, surround lighting light intensity interval pre-sets, and each interval has certain scope, can arrange according to practical application;
Step S103, the surround lighting light intensity interval pre-set according to affiliated surround lighting light intensity interval query and the corresponding table of pulse-width signal, determine the pulse-width signal exported;
Step S104, the brightness being controlled screen by pulse-width signal is exported.
Accordingly, according to the technical scheme in the present embodiment, first the surround lighting light intensity of screen periphery is gathered, and be converted into digital signal, the interval belonging to surround lighting light intensity of digital signal has been converted to according to the surround lighting light intensity interval judgement preset, then interval corresponding pulse-width signal belonging to current environment light light intensity is inquired according to the surround lighting light intensity pre-set is interval with the corresponding table of pulse-width signal, finally utilize and inquire pulse-width signal to control the brightness output of screen, thus the difference realizing environmentally light carrys out Intelligent adjustment screen intensity, avoid the display that screen keeps high brightness always, decrease the waste of electric energy, but also extend the serviceable life of screen.In the present embodiment, corresponding relation based on environmental light intensity and pulse-width signal adjusts brightness, it is that environmentally light intensity directly adjusts screen intensity, namely the stronger then screen intensity of environmental light intensity is stronger, the more weak then screen intensity of surround lighting is more weak, is a direct adjustment relation, and screen intensity can directly be responded in the change of environmentally light intensity, direct convenience, brightness regulation is obvious.
In specific implementation process, the surround lighting light intensity collected in step S101 is original light intensity data, conveniently this surround lighting light intensity collected of follow-up basis inquires about corresponding pulse-width signal, is first converted into digital signal, specifically can adopts following implementation:
The surround lighting light intensity collected is converted to voltage signal, then by AD conversion, voltage signal is converted to digital signal.
In specific implementation process, the surround lighting light intensity interval in step S102 pre-sets, and arranging of surround lighting light intensity interval can realize in the following way:
Using maximum environment light intensity value as benchmark, (whether this point increased here correct to get surround lighting light intensity at regular intervals?) be normalized and obtain corresponding normalization numerical value, some equal interval grades are formed using normalization numerical value as interval endpoint.As, the largest light intensity value of surround lighting is 100cd, in order to the surround lighting light intensity arranging 10 interval grades is interval, surround lighting light intensity between 0-100cd is obtained 0cd according to the interval value of 10cd, 10cd, 20cd ... 80cd, 90cd, 100cd, largest light intensity value 100cd is utilized to be normalized this series of surround lighting light intensity value, as 10/100=0.1, the normalization of other surround lighting light intensity values converts and also so analogizes, obtain 0, 0.1, 0.2 ... 0.8, 0.9, 1 a series of normalization numerical value, 10 equal interval grades are formed using this series of normalization numerical value as interval endpoint, see Fig. 2, be 0 < I≤0.1, 0.1 < I≤0.2, 0.2 < I≤0.3, 0.3 < I≤0.4, 0.4 < I≤0.5, 0.5 < I≤0.6, 0.6 < I≤0.7, 0.7 < I≤0.8, 0.8 < I≤0.9, 0.9 < I≤1.0.In the present embodiment, as when being 0.55 after the surround lighting light intensity value normalized detected, namely it has dropped on surround lighting light intensity interval is in 0.5 < I≤0.6.The method to set up in above-mentioned surround lighting light intensity interval is not limited thereto, as long as can ensure to detect surround lighting light intensity can correspond to a surround lighting light intensity interval and according to the surround lighting light intensity corresponded to interval can reasonable adjusting to the brightness of screen, do not repeat them here.
In specific implementation process, the surround lighting light intensity interval in step S103 pre-sets with the corresponding table of pulse-width signal, the interval corresponding pulse-width signal preset of surround lighting light intensity of certain limit.As long as the surround lighting light intensity detected drops in a certain surround lighting light intensity interval range preset, then all correspond to the same pulse-width signal preset, when there is subtle change at short notice in surround lighting, screen there will not be brightness transition frequently, avoid the discomfort causing beholder's eyes, ensure that the experience of user.The interval higher grade of its ambient light light intensity, and the dutycycle of pulse-width signal is larger, and screen intensity is larger.As shown in Figure 2, an interval corresponding pulse-width signal of surround lighting light intensity, but the setting of pulse-width signal dutycycle of the present invention is not limited thereto.In the present embodiment, environmental light brightness is carried out demarcation interval, the pulsewidth tone pitch signal of each interval its corresponding different duty corresponding, is exported by the mode of tabling look-up, and has more energy-conservation and tackles the more comfortable advantage of each surround lighting section viewing.
Embodiment 2
On the basis of embodiment 1, whether screen front also has people to regulate as a factor of influence screen intensity by the present embodiment.As shown in Figure 3, be the particular flow sheet of the present embodiment.The saving energy of screen display packing of the present embodiment specifically comprises the steps:
Step S201, gathers surround lighting light intensity, and is carried out pre-service and be converted to digital signal;
By digital signal, step S202, judges that the surround lighting light intensity belonging to surround lighting light intensity is interval; Wherein, surround lighting light intensity interval pre-sets, and each interval has certain scope, can arrange according to practical application;
Step S203, whether detection has people side before screen, if have, by current detection to surround lighting light intensity location between automatically to move on to the larger surround lighting light intensity of next stage interval, interval interval as final surround lighting light intensity using this larger surround lighting light intensity, otherwise interval as final surround lighting light intensity between the surround lighting light intensity location that current detection is arrived; Wherein, when people side before screen having been detected, namely or interval as final surround lighting light intensity between surround lighting light intensity location current detection arrived and the surround lighting light intensity interval corresponding to surround lighting light intensity originally detected is when being maximum, then kept surround lighting light intensity interval constant;
Step S204, the surround lighting light intensity interval pre-set according to final surround lighting light intensity interval query and the corresponding table of pulse-width signal, determine the pulse-width signal exported;
Step S205, the brightness being controlled screen by pulse-width signal is exported.
In this specific embodiment, the unmanned display brightness through carrying out adjusting screen as a factor of influence will be had before screen, by direct detection, it has judged whether that people is before screen, and judged result is directly reflected into the upper output pulse width modulation signal of the corresponding table of inquiry, not only direct but also facilitate.When nobody before screen time avoid screen still with high brightness display, not only energy-conservation but also can extend screen life, when there being people before screen, screen shows with higher brightness, can attract the attention of people, and the screen for advertisement is even more important.
In specific implementation process, the specific implementation of step S201, S202, S204 and S205 is substantially the same manner as Example 1, does not repeat them here.
In specific implementation process, whether the detection in step S203 has people just can be realized by infrared induction detector or camera or other sniffers before screen.In the present embodiment, the implementation being realized detecting function by infrared induction detector or camera is specifically set forth.
When adopt infrared induction detector to detect whether to have people before screen side time, can infrared induction detector be arranged on the border of screen, infrared induction detector detects that the Infrared in its directive screen front realizes detection, then be judged to be people side before screen when the cut blocking-up of Infrared, otherwise be judged to be nobody side before screen.When detected by infrared induction detector people before screen side time, by current detection to surround lighting light intensity location between automatically to move on to the larger surround lighting light intensity of next stage interval, interval interval as final surround lighting light intensity using this larger surround lighting light intensity, otherwise interval as final surround lighting light intensity between the surround lighting light intensity location that current detection is arrived.Wherein, when infrared induction detector has detected people side before screen, and the surround lighting light intensity interval corresponding to surround lighting light intensity originally detected is when being maximum, then keep surround lighting light intensity interval constant, namely or using current detection to surround lighting light intensity location between inquire about corresponding pulse-width signal as final surround lighting light intensity interval.Infrared emitted by infrared induction detector forms infrared light gauze or Infrared face before screen, as shown in Figure 4, infrared induction detector is provided with yi word pattern infrared diode A1 and A2, its Infrared sent forms Infrared face before screen, or as shown in Figure 5, infrared induction detector is provided with the common infrared diode A3 of a row, and its Infrared sent forms infrared light gauze before screen.
When adopt camera detect whether have people before screen side time, on the border that camera can be arranged on screen or corner, the front space of the coverage cover screen of camera, camera is by carrying out at the front and back image in different time sections photographed screen front having judged whether people side before screen as difference operation.When detected by camera people before screen side time, by current detection to surround lighting light intensity location between automatically to move on to the larger surround lighting light intensity of next stage interval, interval interval as final surround lighting light intensity using this larger surround lighting light intensity, otherwise interval as final surround lighting light intensity between the surround lighting light intensity location that current detection is arrived.Wherein, when camera has detected people side before screen, and the surround lighting light intensity interval corresponding to surround lighting light intensity originally detected is when being maximum, then keep surround lighting light intensity interval constant, namely or using current detection to surround lighting light intensity location between inquire about corresponding pulse-width signal as final surround lighting light intensity interval.As shown in Figure 6, camera B1 and B2 is placed on the angle of screen, the front space of the coverage cover screen of camera B1 and B2.
Embodiment 3
According to the saving energy of screen display packing of the invention described above, the present invention also provides a kind of saving energy of screen display device, and just the concrete example of saving energy of screen display device of the present invention is described in detail below.Fig. 7 gives the structural representation of an embodiment of saving energy of screen display device of the present invention, is once just described in detail for this embodiment.
A kind of saving energy of screen display device, comprise connect successively optical sensing module 301, light intensity interval determination module 302, pulse-width signal enquiry module 303, screen intensity control module 304 and screen 305; Wherein,
Optical sensing module 301, for gathering surround lighting light intensity, and is carried out pre-service and is converted to digital data transmission to the interval determination module 302 of light intensity;
The interval determination module 302 of light intensity, it is interval that it pre-sets surround lighting light intensity, judges that the surround lighting light intensity interval belonging to surround lighting light intensity is transferred to pulse-width signal enquiry module 303 for the digital signal by receiving;
Pulse-width signal enquiry module 303, it pre-sets the interval corresponding table with pulse-width signal of surround lighting light intensity, for corresponding table with pulse-width signal interval according to affiliated surround lighting light intensity interval query surround lighting light intensity, determine that the pulse-width signal exported transfers to screen intensity control module 304;
Screen intensity control module 304, exports for the brightness controlling screen 305 according to the pulse-width signal received.
Accordingly, according to the technical scheme in the present embodiment, in the interval determination module 302 of light intensity, first pre-set surround lighting light intensity interval and in pulse-width signal enquiry module 303, pre-set the interval corresponding table with pulse-width signal of surround lighting light intensity, optical sensing module 301 is utilized to gather the surround lighting light intensity of screen periphery, and be converted into digital signal, the interval determination module 302 of light intensity judges the interval belonging to surround lighting light intensity being converted to digital signal, then pulse-width signal enquiry module 303 inquires interval corresponding pulse-width signal belonging to current environment light light intensity, screen intensity control module 304 controls the brightness output of screen 305 according to inquiring pulse-width signal, thus the difference realizing environmentally light carrys out Intelligent adjustment screen intensity, avoid the display that screen keeps high brightness always, decrease the waste of electric energy, but also extend the serviceable life of screen.
In specific implementation process, optical sensing module 301 can carry out pre-service by AD conversion module to the surround lighting light intensity collected, after the surround lighting light intensity collected is converted to voltage signal by light level module 301, voltage signal is converted to digital signal by recycling AD conversion module.Wherein AD conversion module can be built in optical sensing module 301, also can be connected with optical sensing module 301 AD conversion realizing surround lighting light intensity independent of optical sensing module 301.When AD conversion module is independent of optical sensing module 301, optical sensing module 301 can adopt photoresistance to realize.
In specific implementation process, the setting in the interval determination module 302 pairs of surround lighting light intensity intervals of light intensity is by such as under type realization:
Using maximum environment light intensity value as benchmark, get surround lighting light intensity at regular intervals and be normalized and obtain corresponding normalization numerical value, form some equal interval grades using normalization numerical value as interval endpoint interval as the surround lighting light intensity pre-set.As, the largest light intensity value of surround lighting is 100cd, in order to the surround lighting light intensity arranging 10 interval grades is interval, surround lighting light intensity between 0-100cd is obtained 0cd according to the interval value of 10cd, 10cd, 20cd ... 80cd, 90cd, 100cd, largest light intensity value 100cd is utilized to be normalized this series of surround lighting light intensity value, as 10/100=0.1, the normalization of other surround lighting light intensity values converts and also so analogizes, obtain 0, 0.1, 0.2 ... 0.8, 0.9, 1 a series of normalization numerical value, 10 equal interval grades are formed using this series of normalization numerical value as interval endpoint, see Fig. 2, be 0 < I≤0.1, 0.1 < I≤0.2, 0.2 < I≤0.3, 0.3 < I≤0.4, 0.4 < I≤0.5, 0.5 < I≤0.6, 0.6 < I≤0.7, 0.7 < I≤0.8, 0.8 < I≤0.9, 0.9 < I≤1.0.In the present embodiment, as when being 0.55 after the surround lighting light intensity value normalized detected, namely it has dropped on surround lighting light intensity interval is in 0.5 < I≤0.6.The method to set up in above-mentioned surround lighting light intensity interval is not limited thereto, as long as can ensure to detect surround lighting light intensity can correspond to a surround lighting light intensity interval and according to the surround lighting light intensity corresponded to interval can reasonable adjusting to the brightness of screen, do not repeat them here.
In specific implementation process, surround lighting light intensity in pulse-width signal enquiry module 303 is interval is the interval corresponding pulse-width signal preset of a surround lighting light intensity with the corresponding table of pulse-width signal, the interval higher grade of its ambient light light intensity, and the dutycycle of pulse-width signal is larger.The interval corresponding pulse-width signal preset of surround lighting light intensity of certain limit.As long as the surround lighting light intensity detected drops in a certain surround lighting light intensity interval range preset, then all correspond to the same pulse-width signal preset, when there is subtle change at short notice in surround lighting, screen 305 there will not be brightness transition frequently, avoid the discomfort causing beholder's eyes, ensure that the experience of user.The interval higher grade of its ambient light light intensity, and the dutycycle of pulse-width signal is larger, and screen intensity is larger.As shown in Figure 2, an interval corresponding pulse-width signal of surround lighting light intensity, but the setting of pulse-width signal dutycycle of the present invention is not limited thereto.In the present embodiment, environmental light brightness is carried out demarcation interval by pulse-width signal enquiry module 303, the pulsewidth tone pitch signal of each interval its corresponding different duty corresponding, is exported by the mode of tabling look-up, has more energy-conservation and tackle the more comfortable advantage of each surround lighting section.
Embodiment 4
Whether, on the basis of embodiment 3, whether the present embodiment is also provided with sniffer has people to detect screen front, according to having people just to carry out the brightness of further adjusting screen before screen.As shown in Figure 8, be the structural representation of the present embodiment.The saving energy of screen display device of the present embodiment, comprise: the optical sensing module 301 connected successively, light intensity interval determination module 302, pulse-width signal enquiry module 303, screen intensity control module 304 and screen 305, also comprise sniffer 306, sniffer 306 is connected with pulse-width signal enquiry module 303.
Wherein, the implementation of optical sensing module 301, light intensity interval determination module 302, pulse-width signal enquiry module 303, screen intensity control module 304 and screen 305 is substantially the same manner as Example 1, does not repeat them here.
Whether sniffer 306 has people side before screen for detection, if have, notice pulse-width signal enquiry module 304 by current detection to surround lighting light intensity location between automatically move on to next stage larger surround lighting light intensity interval inquire about corresponding pulse-width signal, otherwise do not perform the operation of notice pulse-width signal enquiry module.Wherein, when sniffer 306 has detected people side before screen, and the surround lighting light intensity interval corresponding to surround lighting light intensity originally detected is when being maximum, then pulse-width signal enquiry module 304 keeps surround lighting light intensity interval constant, namely still utilize current detection to surround lighting light intensity location between inquire about corresponding pulse-width signal.
Whether the present invention is by having people before sniffer 306 direct detection screen, and judged result is directly reflected in pulse-width signal enquiry module 303, pulse-width signal enquiry module 303 adjusts the interval corresponding to current environment light light intensity according to the result of determination of sniffer 306, thus adjust the pulse-width signal output inquired, not only direct but also facilitate.When nobody before screen time avoid screen still with high brightness display, not only energy-conservation but also can extend screen life, when there being people before screen, screen shows with higher brightness, can attract the attention of people, and the screen for advertisement is even more important.
In specific embodiment process, sniffer 306 can be realized by infrared induction detector or camera.
When employing infrared induction detector, infrared induction detector is arranged in screen border, has been judged to be that people is square before screen, otherwise is judged to be nobody side before screen when it detects the cut blocking-up of Infrared in directive screen front; When detected by infrared induction detector people before screen side time, notice pulse-width signal enquiry module 304 by current detection to surround lighting light intensity location between automatically move on to next stage larger surround lighting light intensity interval inquire about corresponding pulse-width signal, otherwise do not perform the operation of notice pulse-width signal enquiry module 304, pulse-width signal enquiry module 304 will current detection to surround lighting light intensity location between inquire about corresponding pulse-width signal.Wherein, when infrared induction detector has detected people side before screen, and the surround lighting light intensity interval corresponding to surround lighting light intensity originally detected is when being maximum, then pulse-width signal enquiry module 304 keeps surround lighting light intensity interval constant, namely still utilize current detection to surround lighting light intensity location between inquire about corresponding pulse-width signal.Infrared induction detector can adopt yi word pattern infrared diode or common infrared diode to realize, as shown in Figure 4, infrared induction detector is provided with yi word pattern infrared diode A1 and A2, its Infrared sent forms Infrared face before screen, or as shown in Figure 5, infrared induction detector is provided with the common infrared diode A3 of a row, and its Infrared sent forms infrared light gauze before screen.
When adopting camera as sniffer 306, camera is arranged on screen border or angle, and it is by carrying out at the front and back image in different time sections photographed screen front having judged whether people side before screen as difference operation.When camera detected people before screen side time, notice pulse-width signal enquiry module 304 by current detection to surround lighting light intensity location between automatically move on to next stage larger surround lighting light intensity interval inquire about corresponding pulse-width signal, otherwise do not perform the operation of notice pulse-width signal enquiry module 304, pulse-width signal enquiry module 304 will current detection to surround lighting light intensity location between inquire about corresponding pulse-width signal.Wherein, when camera has detected people side before screen, and the surround lighting light intensity interval corresponding to surround lighting light intensity originally detected is when being maximum, then pulse-width signal enquiry module 304 keeps surround lighting light intensity interval constant, namely still utilize current detection to surround lighting light intensity location between inquire about corresponding pulse-width signal.Wherein, the front space of the coverage cover screen of camera, as shown in Figure 6, camera B1 and B2 is placed on the angle of screen, the front space of the coverage cover screen of camera B1 and B2.
Above-described embodiment of the present invention, does not form limiting the scope of the present invention.Any amendment done within the spirit and principles in the present invention, equivalent replacement and improvement etc., all should be included within claims of the present invention.
Claims (8)
1. a saving energy of screen display packing, is characterized in that, comprises the steps:
Gather surround lighting light intensity, and carried out pre-service and be converted to digital signal;
Judge that the surround lighting light intensity belonging to surround lighting light intensity is interval by digital signal;
The surround lighting light intensity interval pre-set according to affiliated surround lighting light intensity interval query and the corresponding table of pulse-width signal, determine the pulse-width signal exported;
The brightness being controlled screen by pulse-width signal is exported;
Also following steps are carried out: whether detection has people side before screen after judged the surround lighting light intensity interval belonging to surround lighting light intensity by digital signal, if have, by current detection to surround lighting light intensity location between automatically to move on to the larger surround lighting light intensity of next stage interval, inquire about corresponding pulse-width signal with this larger surround lighting light intensity interval, otherwise according to current detection to surround lighting light intensity location between inquire about corresponding pulse-width signal.
2. saving energy of screen display packing according to claim 1, is characterized in that, described surround lighting light intensity is interval for pre-setting, and its dividing mode is as follows:
Using maximum environment light intensity value as benchmark, get surround lighting light intensity at regular intervals and be normalized and obtain corresponding normalization numerical value, form some equal interval grades using normalization numerical value as interval endpoint.
3. saving energy of screen display packing according to claim 1, it is characterized in that, the surround lighting light intensity pre-set is interval is the interval corresponding pulse-width signal preset of a surround lighting light intensity with the corresponding table of pulse-width signal, the interval higher grade of its ambient light light intensity, and the dutycycle of pulse-width signal is larger.
4. according to the saving energy of screen display packing of any one of claims 1 to 3, it is characterized in that, detect whether there is people side before screen by the infrared induction detector be placed in screen border, infrared induction detector detects that the Infrared in directive screen front is cut when blocking and has been judged to be people side before screen, otherwise is judged to be nobody side before screen;
Or,
Detect whether there is people side before screen by the camera be placed on screen border or corner, described camera is by carrying out at the front and back image in different time sections photographed screen front having judged whether people side before screen as difference operation.
5. a saving energy of screen display device, comprises screen, it is characterized in that, also comprise connect successively optical sensing module, light intensity interval determination module, pulse-width signal enquiry module and screen intensity control module, described screen intensity controls to be connected with screen; Wherein,
Optical sensing module, for gathering surround lighting light intensity, and is carried out pre-service and is converted to digital data transmission to the interval determination module of light intensity;
The interval determination module of light intensity, it is interval that it pre-sets surround lighting light intensity, judges that the surround lighting light intensity interval belonging to surround lighting light intensity is transferred to pulse-width signal enquiry module for the digital signal by receiving;
Pulse-width signal enquiry module, it pre-sets the interval corresponding table with pulse-width signal of surround lighting light intensity, for corresponding table with pulse-width signal interval according to affiliated surround lighting light intensity interval query surround lighting light intensity, determine that the pulse-width signal exported transfers to screen intensity control module;
Screen intensity control module, exports for the brightness controlling screen according to the pulse-width signal received;
Also comprise the sniffer arranged on screen, described sniffer is connected with pulse-width signal enquiry module, people side before screen whether is had for detection, if have, notice pulse-width signal enquiry module by current detection to surround lighting light intensity location between automatically move on to next stage larger surround lighting light intensity interval inquire about corresponding pulse-width signal, otherwise do not perform the operation of notice pulse-width signal enquiry module.
6. saving energy of screen display device according to claim 5, it is characterized in that, the interval determination module of described light intensity is using maximum environment light intensity value as benchmark, get surround lighting light intensity to be at regular intervals normalized and to obtain corresponding normalization numerical value, form some equal interval grades using normalization numerical value as interval endpoint interval as the surround lighting light intensity pre-set.
7. saving energy of screen display device according to claim 5, it is characterized in that, surround lighting light intensity in pulse-width signal enquiry module is interval is the interval corresponding pulse-width signal preset of a surround lighting light intensity with the corresponding table of pulse-width signal, the interval higher grade of its ambient light light intensity, and the dutycycle of pulse-width signal is larger.
8. saving energy of screen display device according to claim 5, it is characterized in that, described sniffer is the infrared induction detector be arranged in screen border, it has been judged to be that people is square before screen when detecting the cut blocking-up of Infrared in directive screen front, otherwise is judged to be nobody side before screen;
Or,
Described sniffer is be arranged on the camera on screen border or angle, and it is by carrying out at the front and back image in different time sections photographed screen front having judged whether people side before screen as difference operation.
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| CN105139230A (en) * | 2015-08-26 | 2015-12-09 | 成都秋雷科技有限责任公司 | Automatic dimming advertising system |
| CN105374339A (en) * | 2015-11-19 | 2016-03-02 | 广东小天才科技有限公司 | Intelligent terminal display screen brightness automatic adjustment method and system |
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