CN104780642A - Backlight control system of remote controller, remote controller and backlight control method of remote controller - Google Patents
Backlight control system of remote controller, remote controller and backlight control method of remote controller Download PDFInfo
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- CN104780642A CN104780642A CN201410014491.5A CN201410014491A CN104780642A CN 104780642 A CN104780642 A CN 104780642A CN 201410014491 A CN201410014491 A CN 201410014491A CN 104780642 A CN104780642 A CN 104780642A
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Abstract
The invention provides a backlight control system of a remote controller, the remote controller and a backlight control method of the remote controller. The backlight control system of the remote controller comprises an illumination intensity detection unit used for detecting real-time illumination intensity of an environment where the remote controller is located, a judgment unit used for judging whether the real-time illumination intensity detected by the illumination intensity detection unit is less than or equal to a preset threshold, a control unit, and a state detection unit used for detecting whether a user contacts the remote controller, wherein the control unit is used for controlling the state detection unit to detect whether the user contacts the remote controller when the judgment unit judges the real-time illumination intensity is less than or equal to the preset threshold, and sending a turn-on signal to a backlight source of the remote controller to turn on the backlight source when the state detection unit detects the user contacts the remote controller. With the adoption of the technical scheme, the user can still accurately operate the remote controller in a dark environment, and power consumption of the remote controller is reduced.
Description
Technical field
The present invention relates to remote controller technical field, in particular to the method for controlling backlight thereof of a kind of backlight control system of remote controller, a kind of remote controller and a kind of remote controller.
Background technology
In correlation technique, in order to make user in dark conditions still can remote controller exactly, can be remote configuration back light, and in order to reduce the power consumption of remote control, usually there are following two kinds of ways:
(1) when user does not touch remote controller key, back light is closed, and when user touches remote controller key, opens back light.Although this way solves user can not the problem of exact operations remote controller under dark condition, but user is when environment illumination intensity is lower, owing to not seeing the button on Chu's remote controller, therefore first button can only be touched blindly, so that just can precise manipulation be carried out after back light to be opened, be unfavorable for the operating experience of user on the one hand, also easily misoperation is caused on the other hand, and under the condition that intensity of illumination is higher, if user triggers remote controller key remote controller also can open back light, add energy consumption.
(2) when user does not pick up remote controller, do not open back light, when user picks up remote controller, open back light.Although this way can avoid the problem of user's false triggering, also can open back light when intensity of illumination is higher, too increase the energy consumption of remote controller.
Therefore, how guarantee that user is in dark condition still can under the prerequisite of exact operations remote controller, the power consumption reducing remote controller becomes technical problem urgently to be resolved hurrily.
Summary of the invention
The present invention is intended at least to solve one of technical problem existed in prior art or correlation technique.
For this reason, one object of the present invention is to propose and a kind ofly can guarantees that user is be in dark condition still can remote controller exactly, reduces the backlight control system of the remote controller of the power consumption of remote controller simultaneously.
Another object of the present invention is to propose a kind of remote controller.
Another object of the present invention is the method for controlling backlight thereof proposing a kind of remote controller.
For achieving the above object, embodiment according to a first aspect of the invention, proposes a kind of backlight control system of remote controller, comprising: intensity of illumination detecting unit, for detecting the real-time lighting intensity in environment residing for remote controller; Judging unit, for judging whether the described real-time lighting intensity that described intensity of illumination detecting unit detects is less than or equal to predetermined threshold; Control unit, during for judging that described real-time lighting intensity is less than or equal to predetermined threshold at described judging unit, state of a control detecting unit detects user and whether contacts described remote controller, and when described state detection unit detects that user contacts described remote controller, back light to described remote controller sends start signal, to open described back light; Whether described state detection unit, contact described remote controller for detecting user.
According to the backlight control system of the remote controller of the embodiment of the present invention, be less than or equal to predetermined threshold by the real-time lighting intensity in environment residing for remote controller and whether contact the trigger condition of remote controller as detecting user, ensure that only when intensity of illumination is lower on the one hand, just open back light, avoid also opening back light when intensity of illumination is higher and the energy consumption that increases remote controller, improve the flexibility that back light is controlled; On the other hand, also user is made just clearly can to see the position of each button when touching remote controller, so that operate remote controller, solving user can not the problem of exact operations remote controller in the environment of dark, to it also avoid in correlation technique simultaneously and only after user triggers the button of remote controller, just open back light and the situation that causes misoperation, improve the accuracy to remote controller operation in dark surrounds.As one comparatively preferred embodiment, detect real-time lighting intensity in environment residing for remote controller by light sensor, such as photo resistance or photodiode etc.
Wherein, the predetermined threshold of intensity of illumination needs to ensure that user can see the button on remote controller, can be the default value that remote controller manufacturer presets, also can be set according to actual conditions by user.Preferably, when real-time lighting intensity is greater than predetermined threshold, no matter whether user contacts remote controller or whether has button, does not open back light, saves energy.For example, predetermined threshold can be 5 luxs, then, when residing for user, environment illumination intensity is less than or equal to 5 lux, user contacts remote controller, and the back light of remote controller just can be opened automatically without the need to button; And when environment illumination intensity is greater than 5 lux, when user contacts remote controller or button, back light all can not be opened.
In addition, the backlight control system of remote controller according to the above embodiment of the present invention, can also have following additional technical characteristic:
According to one embodiment of present invention, also comprise: timer, at described control unit to after described back light sends described start signal, start timing; Described control unit also for: when the timing time of described timer reaches the scheduled time, send shutdown signal, to close described back light to described back light.
According to the backlight control system of the remote controller of the embodiment of the present invention, because the operation of user to remote controller has the regular hour, back light is opened if continue after user is to remote controller operation, then can increase the power consumption of remote controller, therefore by after timing time reaches the scheduled time, close back light, back light can be avoided often bright and expend the electricity of remote controller.
Wherein, the scheduled time can be 1 second to 10 seconds, preferably, can be 3 seconds.
According to one embodiment of present invention, described control unit also for: when the timing time of described timer does not reach the described scheduled time, if the described real-time lighting intensity that described intensity of illumination detecting unit detects is greater than described predetermined threshold, then send shutdown signal to described back light.
According to the backlight control system of the remote controller of the embodiment of the present invention, during by detecting that real-time lighting intensity is greater than predetermined threshold in back light open period, close back light, can avoid still opening back light when user can see the button of remote controller and the energy consumption that increases remote controller.
According to one embodiment of present invention, described control unit also for: after sending described shutdown signal to described back light, if the described real-time lighting intensity that described intensity of illumination detecting unit detects is less than or equal to described predetermined threshold, then control described state detection unit continuation detection user and whether contact described remote controller, and when described state detection unit detects that user contacts described remote controller, again send described start signal to described back light.
According to the backlight control system of the remote controller of the embodiment of the present invention, specifically, remote controller in use, the situation that user operation is slower may be there is, i.e. also non-complete operation or also operate within the backlight open time of remote controller, therefore by when the opening time of back light reaches predetermined threshold (after sending shutdown signal to back light), if detect, user still contacts remote controller, continue to open back light, make non-complete operation or the user that do not carry out operating can proceed to operate exactly, avoid at the non-complete operation of user or do not carry out operating and close back light and cause user's false triggering, affect the operating experience of user.
According to one embodiment of present invention, described state detection unit comprises: vibrating sensor; And when described vibrating sensor detects vibration, judge that user contacts described remote controller.
According to the backlight control system of the remote controller of the embodiment of the present invention, as one comparatively preferred embodiment, detect user by vibrating sensor and whether contact remote controller.Certain those skilled in the art should be understood that, detect user and whether contact the mode of remote controller in addition a lot, herein and be not used in concrete restriction, such as in other embodiments, can also pass through acceleration transducer, infrared sensor, jogging sensor etc., also can be the combination of multiple sensors.
According to one embodiment of present invention, described control unit also for: do not reach the described scheduled time at the timing time of described counter, and the described real-time lighting intensity that described intensity of illumination detecting unit detects is when being less than or equal to described predetermined threshold always, if described vibrating sensor detects vibration again, then control described timer reclocking.
According to the backlight control system of the remote controller of the embodiment of the present invention, specifically, remote controller in use, the situation that user operation is slower may be there is, i.e. also non-complete operation or also operate within the backlight open time of remote controller, therefore by when vibrating sensor detects vibration again, restart timing, make to contact back light in the process of remote controller user and can be in opening, avoid at the non-complete operation of user or do not carry out operating and close back light and cause user's false triggering, affecting the operating experience of user.
According to one embodiment of present invention, described predetermined threshold is less than or equal to 5 luxs.
According to the backlight control system of the remote controller of the embodiment of the present invention, because the intensity of illumination scope in night environment is in 0.001 lux, lux to 0.02; Intensity of illumination scope in month night environment is in 0.02 lux, lux to 0.3; The intensity of illumination scope of cloudy day indoor is in 5 luxs, lux to 50; The intensity of illumination scope of cloudy day outdoor is in 50 luxs, lux to 500; The intensity of illumination scope of fine day indoor is in 100 luxs, lux to 1000; Under noon in summer sunlight intensity of illumination scope be about 10
9lux, therefore as one comparatively preferred embodiment, predetermined threshold can be less than or equal to 5 luxs, and more preferably, predetermined threshold can be set to 0.3 lux.
Embodiment according to a second aspect of the invention, also proposed a kind of remote controller, comprising: back light; And the backlight control system of remote controller described in above-mentioned any one embodiment; Wherein, the control unit in the backlight control system of described remote controller sends start signal or shutdown signal, to open or to close described back light to described back light.
According to the remote controller of the embodiment of the present invention, be less than or equal to predetermined threshold by the real-time lighting intensity in environment residing for remote controller and whether contact the trigger condition of remote controller as detecting user, ensure that only when intensity of illumination is lower on the one hand, just open back light, avoid also opening back light when intensity of illumination is higher and the energy consumption that increases remote controller, improve the flexibility that back light is controlled; On the other hand, also user is made just clearly can to see the position of each button when touching remote controller, so that operate remote controller, solving user can not the problem of exact operations remote controller in the environment of dark, to it also avoid in correlation technique simultaneously and only after user triggers the button of remote controller, just open back light and the situation that causes misoperation, improve the accuracy to remote controller operation in dark surrounds.As one comparatively preferred embodiment, detect real-time lighting intensity in environment residing for remote controller by light sensor, such as photo resistance or photodiode etc.
Embodiment according to a third aspect of the invention we, also proposed a kind of method for controlling backlight thereof of remote controller, comprising: detect the real-time lighting intensity in environment residing for remote controller; Judge whether described intensity of illumination is less than or equal to predetermined threshold, if so, then detect user and whether contact described remote controller; And when detecting that user contacts described remote controller, the back light to described remote controller sends start signal, to open described back light.
According to the method for controlling backlight thereof of the remote controller of the embodiment of the present invention, be less than or equal to predetermined threshold by the real-time lighting intensity in environment residing for remote controller and whether contact the trigger condition of remote controller as detecting user, ensure that only when intensity of illumination is lower on the one hand, just open back light, avoid also opening back light when intensity of illumination is higher and the energy consumption that increases remote controller, improve the flexibility that back light is controlled; On the other hand, also user is made just clearly can to see the position of each button when touching remote controller, so that operate remote controller, solving user can not the problem of exact operations remote controller in the environment of dark, to it also avoid in correlation technique simultaneously and only after user triggers the button of remote controller, just open back light and the situation that causes misoperation, improve the accuracy to remote controller operation in dark surrounds.As one comparatively preferred embodiment, detect real-time lighting intensity in environment residing for remote controller by light sensor, such as photo resistance or photodiode etc.
Wherein, the predetermined threshold of intensity of illumination needs to ensure that user can see the button on remote controller, can be the default value that remote controller manufacturer presets, also can be set according to actual conditions by user.Preferably, when real-time lighting intensity is greater than predetermined threshold, no matter whether user contacts remote controller or whether has button, does not open back light, saves energy.For example, predetermined threshold can be 5 luxs, then, when residing for user, environment illumination intensity is less than or equal to 5 lux, user contacts remote controller, and the back light of remote controller just can be opened automatically without the need to button; And when environment illumination intensity is greater than 5 lux, when user contacts remote controller or button, back light all can not be opened.
According to one embodiment of present invention, also comprise: after sending described start signal to the back light of described remote controller, start timing; And when timing time reaches the scheduled time, send shutdown signal, to close described back light to described back light.
According to the method for controlling backlight thereof of the remote controller of the embodiment of the present invention, because the operation of user to remote controller has the regular hour, back light is opened if continue after user is to remote controller operation, then can increase the power consumption of remote controller, therefore by after timing time reaches the scheduled time, close back light, back light can be avoided often bright and expend the electricity of remote controller.
Wherein, the scheduled time can be 1 second to 10 seconds, preferably, can be 3 seconds.
According to one embodiment of present invention, also comprise: when described timing time does not reach the described scheduled time, if detect, described real-time lighting intensity is greater than described predetermined threshold, then send shutdown signal to described back light.
According to the method for controlling backlight thereof of the remote controller of the embodiment of the present invention, during by detecting that real-time lighting intensity is greater than predetermined threshold in back light open period, close back light, can avoid still opening back light when user can see the button of remote controller and the energy consumption that increases remote controller.
According to one embodiment of present invention, also comprise: after sending described shutdown signal to described back light, if detect, described real-time lighting intensity is less than or equal to described predetermined threshold, then continue to detect user and whether contact described remote controller, and when detecting that user contacts described remote controller, again send described start signal to described back light.
According to the method for controlling backlight thereof of the remote controller of the embodiment of the present invention, specifically, remote controller in use, the situation that user operation is slower may be there is, i.e. also non-complete operation or also operate within the backlight open time of remote controller, therefore by when the opening time of back light reaches predetermined threshold (after sending shutdown signal to back light), if detect, user still contacts remote controller, continue to open back light, make non-complete operation or the user that do not carry out operating can proceed to operate exactly, avoid at the non-complete operation of user or do not carry out operating and close back light and cause user's false triggering, affect the operating experience of user.
According to one embodiment of present invention, detect user by vibrating sensor and whether contact described remote controller; The step whether described detection user contacts described remote controller is specially: when described vibrating sensor detects vibration, judges that user contacts described remote controller.
According to the method for controlling backlight thereof of the remote controller of the embodiment of the present invention, as one comparatively preferred embodiment, detect user by vibrating sensor and whether contact remote controller.Certain those skilled in the art should be understood that, detect user and whether contact the mode of remote controller in addition a lot, herein and be not used in concrete restriction, such as in other embodiments, can also pass through acceleration transducer, infrared sensor, jogging sensor etc., also can be the combination of multiple sensors.
According to one embodiment of present invention, also comprise: do not reach the described scheduled time at described timing time, and the described real-time lighting intensity detected is when being less than or equal to described predetermined threshold always, if described vibrating sensor detects vibration again, then restart timing.
According to the method for controlling backlight thereof of the remote controller of the embodiment of the present invention, specifically, remote controller in use, the situation that user operation is slower may be there is, i.e. also non-complete operation or also operate within the backlight open time of remote controller, therefore by when vibrating sensor detects vibration again, restart timing, make to contact back light in the process of remote controller user and can be in opening, avoid at the non-complete operation of user or do not carry out operating and close back light and cause user's false triggering, affecting the operating experience of user.
Additional aspect of the present invention and advantage will part provide in the following description, and part will become obvious from the following description, or be recognized by practice of the present invention.
Accompanying drawing explanation
Above-mentioned and/or additional aspect of the present invention and advantage will become obvious and easy understand from accompanying drawing below combining to the description of embodiment, wherein:
Fig. 1 shows the schematic block diagram of the backlight control system of remote controller according to an embodiment of the invention;
Fig. 2 shows the schematic block diagram of remote controller according to an embodiment of the invention;
Fig. 3 shows the schematic flow diagram of the method for controlling backlight thereof of remote controller according to an embodiment of the invention;
Fig. 4 A shows the schematic block diagram of the backlight control system of remote controller according to another embodiment of the invention;
Fig. 4 B shows the electrical block diagram of motion detection unit according to an embodiment of the invention;
Fig. 5 shows the flow chart of the method for controlling backlight thereof of remote controller according to another embodiment of the invention.
Embodiment
In order to more clearly understand above-mentioned purpose of the present invention, feature and advantage, below in conjunction with the drawings and specific embodiments, the present invention is further described in detail.It should be noted that, when not conflicting, the feature in the embodiment of the application and embodiment can combine mutually.
Set forth a lot of detail in the following description so that fully understand the present invention; but; the present invention can also adopt other to be different from other modes described here and implement, and therefore, protection scope of the present invention is not by the restriction of following public specific embodiment.
Fig. 1 shows the schematic block diagram of the backlight control system of remote controller according to an embodiment of the invention.
As shown in Figure 1, the backlight control system 100 of remote controller according to an embodiment of the invention, comprising: intensity of illumination detecting unit 102, for detecting the real-time lighting intensity in environment residing for remote controller; Judging unit 104, for judging whether the described real-time lighting intensity that described intensity of illumination detecting unit 102 detects is less than or equal to predetermined threshold; Control unit 106, for when described judging unit 104 judges that described real-time lighting intensity is less than or equal to predetermined threshold, state of a control detecting unit 108 detects user and whether contacts described remote controller, and when described state detection unit 108 detects that user contacts described remote controller, back light to described remote controller sends start signal, to open described back light; Whether described state detection unit 108, contact described remote controller for detecting user.
Be less than or equal to predetermined threshold by the real-time lighting intensity in environment residing for remote controller and whether contact the trigger condition of remote controller as detecting user, ensure that only when intensity of illumination is lower on the one hand, just open back light, avoid also opening back light when intensity of illumination is higher and the energy consumption that increases remote controller, improve the flexibility that back light is controlled; On the other hand, also user is made just clearly can to see the position of each button when touching remote controller, so that operate remote controller, solving user can not the problem of exact operations remote controller in the environment of dark, to it also avoid in correlation technique simultaneously and only after user triggers the button of remote controller, just open back light and the situation that causes misoperation, improve the accuracy to remote controller operation in dark surrounds.As one comparatively preferred embodiment, detect real-time lighting intensity in environment residing for remote controller by light sensor, such as photo resistance or photodiode etc.
Wherein, the predetermined threshold of intensity of illumination needs to ensure that user can see the button on remote controller, can be the default value that remote controller manufacturer presets, also can be set according to actual conditions by user.Preferably, when real-time lighting intensity is greater than predetermined threshold, no matter whether user contacts remote controller or whether has button, does not open back light, saves energy.For example, predetermined threshold can be 5 luxs, then, when residing for user, environment illumination intensity is less than or equal to 5 lux, user contacts remote controller, and the back light of remote controller just can be opened automatically without the need to button; And when environment illumination intensity is greater than 5 lux, when user contacts remote controller or button, back light all can not be opened.
In addition, the backlight control system 100 of remote controller according to the above embodiment of the present invention, can also have following additional technical characteristic:
According to one embodiment of present invention, also comprise: timer 110, at described control unit 106 to after described back light sends described start signal, start timing; Described control unit 106 also for: when the timing time of described timer 110 reaches the scheduled time, send shutdown signal, to close described back light to described back light.
Specifically, because the operation of user to remote controller has the regular hour, back light is opened if continue after user is to remote controller operation, then can increase the power consumption of remote controller, therefore by after timing time reaches the scheduled time, close back light, back light can be avoided often bright and expend the electricity of remote controller.
Wherein, the scheduled time can be 1 second to 10 seconds, preferably, can be 3 seconds.
According to one embodiment of present invention, described control unit 106 also for: when the timing time of described timer 110 does not reach the described scheduled time, if the described real-time lighting intensity that described intensity of illumination detecting unit 102 detects is greater than described predetermined threshold, then send shutdown signal to described back light.
During by detecting that real-time lighting intensity is greater than predetermined threshold in back light open period, closing back light, can avoid still opening back light when user can see the button of remote controller and the energy consumption that increases remote controller.
According to one embodiment of present invention, described control unit 106 also for: after sending described shutdown signal to described back light, if the described real-time lighting intensity that described intensity of illumination detecting unit 102 detects is less than or equal to described predetermined threshold, then control described state detection unit 108 continuation detection user and whether contact described remote controller, and when described state detection unit 108 detects that user contacts described remote controller, again send described start signal to described back light.
Specifically, remote controller in use, the situation that user operation is slower may be there is, i.e. also non-complete operation or also operate within the backlight open time of remote controller, therefore by when the opening time of back light reaches predetermined threshold (after sending shutdown signal to back light), if detect, user still contacts remote controller, continue to open back light, make non-complete operation or the user that do not carry out operating can proceed to operate exactly, avoid at the non-complete operation of user or do not carry out operating and close back light and cause user's false triggering, affect the operating experience of user.
According to one embodiment of present invention, described state detection unit 108 comprises: vibrating sensor; And when described vibrating sensor detects vibration, judge that user contacts described remote controller.
As one comparatively preferred embodiment, detect user by vibrating sensor and whether contact remote controller.Certain those skilled in the art should be understood that, detect user and whether contact the mode of remote controller in addition a lot, herein and be not used in concrete restriction, such as in other embodiments, can also pass through acceleration transducer, infrared sensor, jogging sensor etc., also can be the combination of multiple sensors.
According to one embodiment of present invention, described control unit 106 also for: do not reach the described scheduled time at the timing time of described counter 110, and the described real-time lighting intensity that described intensity of illumination detecting unit 102 detects is when being less than or equal to described predetermined threshold always, if described vibrating sensor detects vibration again, then control the reclocking of described timer 110.
Specifically, remote controller in use, the situation that user operation is slower may be there is, i.e. also non-complete operation or also operate within the backlight open time of remote controller, therefore by when vibrating sensor detects vibration again, restart timing, make to contact back light in the process of remote controller user and can be in opening, avoid at the non-complete operation of user or do not carry out operating and close back light and cause user's false triggering, affecting the operating experience of user.
According to one embodiment of present invention, described predetermined threshold is less than or equal to 5 luxs.
Because the intensity of illumination scope in night environment is in 0.001 lux, lux to 0.02; Intensity of illumination scope in month night environment is in 0.02 lux, lux to 0.3; The intensity of illumination scope of cloudy day indoor is in 5 luxs, lux to 50; The intensity of illumination scope of cloudy day outdoor is in 50 luxs, lux to 500; The intensity of illumination scope of fine day indoor is in 100 luxs, lux to 1000; Intensity of illumination scope under noon in summer sunlight is about 10
9lux, therefore as one comparatively preferred embodiment, predetermined threshold can be less than or equal to 5 luxs, and more preferably, predetermined threshold can be set to 0.3 lux.
Fig. 2 shows the schematic block diagram of remote controller according to an embodiment of the invention.
As shown in Figure 2, remote controller 200 according to an embodiment of the invention, comprising: back light 202; And the backlight control system 100 of the remote controller shown in Fig. 1; Wherein, the control unit (not shown in Fig. 2) in the backlight control system 100 of described remote controller sends start signal or shutdown signal to described back light 202, to open or to close described back light 202.
Be less than or equal to predetermined threshold by the real-time lighting intensity in environment residing for remote controller 200 and whether contact the trigger condition of remote controller 200 as detecting user, ensure that only when intensity of illumination is lower on the one hand, just open back light 202, avoid also opening back light 202 when intensity of illumination is higher and the energy consumption that increases remote controller 200, improve the flexibility that back light 202 is controlled; On the other hand, also user is made just clearly can to see the position of each button when touching remote controller 200, so that operate remote controller 200, solving user can not the problem of exact operations remote controller 200 in the environment of dark, to it also avoid in correlation technique simultaneously and only after user triggers the button of remote controller 200, just open back light 202 and the situation that causes misoperation, improve in dark surrounds the accuracy that remote controller 200 operates.As one comparatively preferred embodiment, detect real-time lighting intensity in environment residing for remote controller 200 by light sensor, such as photo resistance or photodiode etc.
Fig. 3 shows the schematic flow diagram of the method for controlling backlight thereof of remote controller according to an embodiment of the invention.
As shown in Figure 3, also proposed a kind of method for controlling backlight thereof of remote controller, comprising: step 302, detect the real-time lighting intensity in environment residing for remote controller; Step 304, judges whether described intensity of illumination is less than or equal to predetermined threshold, if so, then detects user and whether contacts described remote controller; And when detecting that user contacts described remote controller, the back light to described remote controller sends start signal, to open described back light.
Be less than or equal to predetermined threshold by the real-time lighting intensity in environment residing for remote controller and whether contact the trigger condition of remote controller as detecting user, ensure that only when intensity of illumination is lower on the one hand, just open back light, avoid also opening back light when intensity of illumination is higher and the energy consumption that increases remote controller, improve the flexibility that back light is controlled; On the other hand, also user is made just clearly can to see the position of each button when touching remote controller, so that operate remote controller, solving user can not the problem of exact operations remote controller in the environment of dark, to it also avoid in correlation technique simultaneously and only after user triggers the button of remote controller, just open back light and the situation that causes misoperation, improve the accuracy to remote controller operation in dark surrounds.As one comparatively preferred embodiment, detect real-time lighting intensity in environment residing for remote controller by light sensor, such as photo resistance or photodiode etc.
Wherein, the predetermined threshold of intensity of illumination needs to ensure that user can see the button on remote controller, can be the default value that remote controller manufacturer presets, also can be set according to actual conditions by user.Preferably, when real-time lighting intensity is greater than predetermined threshold, no matter whether user contacts remote controller or whether has button, does not open back light, saves energy.For example, predetermined threshold can be 5 luxs, then, when residing for user, environment illumination intensity is less than or equal to 5 lux, user contacts remote controller, and the back light of remote controller just can be opened automatically without the need to button; And when environment illumination intensity is greater than 5 lux, when user contacts remote controller or button, back light all can not be opened.
According to one embodiment of present invention, also comprise: after sending described start signal to the back light of described remote controller, start timing; And when timing time reaches the scheduled time, send shutdown signal, to close described back light to described back light.
Because the operation of user to remote controller has the regular hour, back light is opened if continue after user is to remote controller operation, then can increase the power consumption of remote controller, therefore by after timing time reaches the scheduled time, close back light, back light can be avoided often bright and expend the electricity of remote controller.
Wherein, the scheduled time can be 1 second to 10 seconds, preferably, can be 3 seconds.
According to one embodiment of present invention, also comprise: when described timing time does not reach the described scheduled time, if detect, described real-time lighting intensity is greater than described predetermined threshold, then send shutdown signal to described back light.
During by detecting that real-time lighting intensity is greater than predetermined threshold in back light open period, closing back light, can avoid still opening back light when user can see the button of remote controller and the energy consumption that increases remote controller.
According to one embodiment of present invention, also comprise: after sending described shutdown signal to described back light, if detect, described real-time lighting intensity is less than or equal to described predetermined threshold, then continue to detect user and whether contact described remote controller, and when detecting that user contacts described remote controller, again send described start signal to described back light.
Specifically, remote controller in use, the situation that user operation is slower may be there is, i.e. also non-complete operation or also operate within the backlight open time of remote controller, therefore by when the opening time of back light reaches predetermined threshold (after sending shutdown signal to back light), if detect, user still contacts remote controller, continue to open back light, make non-complete operation or the user that do not carry out operating can proceed to operate exactly, avoid at the non-complete operation of user or do not carry out operating and close back light and cause user's false triggering, affect the operating experience of user.
According to one embodiment of present invention, detect user by vibrating sensor and whether contact described remote controller; The step whether described detection user contacts described remote controller is specially: when described vibrating sensor detects vibration, judges that user contacts described remote controller.
As one comparatively preferred embodiment, detect user by vibrating sensor and whether contact remote controller.Certain those skilled in the art should be understood that, detect user and whether contact the mode of remote controller in addition a lot, herein and be not used in concrete restriction, such as in other embodiments, can also pass through acceleration transducer, infrared sensor, jogging sensor etc., also can be the combination of multiple sensors.
According to one embodiment of present invention, also comprise: do not reach the described scheduled time at described timing time, and the described real-time lighting intensity detected is when being less than or equal to described predetermined threshold always, if described vibrating sensor detects vibration again, then restart timing.
Specifically, remote controller in use, the situation that user operation is slower may be there is, i.e. also non-complete operation or also operate within the backlight open time of remote controller, therefore by when vibrating sensor detects vibration again, restart timing, make to contact back light in the process of remote controller user and can be in opening, avoid at the non-complete operation of user or do not carry out operating and close back light and cause user's false triggering, affecting the operating experience of user.
Fig. 4 A shows the schematic block diagram of the backlight control system of remote controller according to another embodiment of the invention.
As shown in Figure 4 A, the backlight control system 400 of remote controller according to another embodiment of the invention, comprising: intensity of illumination detecting unit 406, for detecting the intensity of illumination in the environment residing for remote controller, and the intensity of illumination numerical value detected being sent to control unit 402;
Whether motion detection unit 408, have picked up by user for detecting current remotes, and testing result is sent to control unit 402;
Control unit 402, intensity of illumination numerical value for detecting at intensity of illumination detecting unit 406 is less than or equal to predetermined threshold (can be 0.3 lux), and when the testing result of motion detection unit 408 shows that user picks up remote controller, control backlight module 404 and open, and
After backlight module 404 continues to open backlight a period of time (can be 3 seconds), then control backlight module 404 and close backlight.Especially, when the intensity of illumination numerical value that intensity of illumination detecting unit 406 detects is greater than predetermined threshold, even if user picks up remote controller or presses the button of remote controller, also control backlight module 404 and close backlight.
Wherein, the circuit structure of motion detection unit 408 can be as shown in Figure 4 B.
As shown in Figure 4 B, motion detection unit according to an embodiment of the invention, comprise: vibrating sensor 410, wherein, vibrating sensor 410 is connected with the control unit 402 in Fig. 4 A, when user does not pick up remote controller, vibrating sensor 410 is normally off, now node 412 place is low level, when user picks up remote controller, vibrating sensor 410 is in normally open, and now node 412 place is high level, control unit 402 changes according to the level at node 412 place, judges whether user picks up remote controller.Such as: when the level signal at node 412 place becomes high level from low level, then can determine that user contacts remote controller.
Fig. 5 shows the flow chart of the method for controlling backlight thereof of remote controller according to another embodiment of the invention.
As shown in Figure 5, the method for controlling backlight thereof of remote controller according to another embodiment of the invention comprises:
Step 502, detects the real-time lighting intensity D in environment residing for remote controller.
Step 504, judges whether intensity of illumination D is less than or equal to predetermined threshold D1, if so, then performs step 506; Otherwise perform step 510.Wherein, D1 can be 0.3 lux.
Step 506, when judging that intensity of illumination D is greater than predetermined threshold D1, the back light of remote controller is closed.
Step 508, when judging that intensity of illumination D is less than or equal to predetermined threshold D1, opening detecting unit.
Step 510, judges whether state detection unit detects that user contacts remote controller, if user contacts remote controller, then performs step 512, otherwise performs step 506.
Step 512, controls backlight open.Intensity of illumination D in environment residing for remote controller be less than or equal to predetermined threshold D1 and user contacts remote controller time, control back light open.
Step 514, opens after the T1 time and closes backlight, and often open to avoid back light or open the long period and increase the energy consumption of terminal, wherein T1 can be 3 seconds.
More than be described with reference to the accompanying drawings technical scheme of the present invention, the present invention proposes a kind of backlight control techniques of remote controller, ensure that only when intensity of illumination is lower on the one hand, just open back light, avoid also opening back light when intensity of illumination is higher and the energy consumption that increases remote controller, improve the flexibility that back light is controlled; On the other hand, also user is made just clearly can to see the position of each button when touching remote controller, so that operate remote controller, solving user can not the problem of exact operations remote controller in the environment of dark, to it also avoid in correlation technique simultaneously and only after user triggers the button of remote controller, just open back light and the situation that causes misoperation, improve the accuracy to remote controller operation in dark surrounds.
The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, for a person skilled in the art, the present invention can have various modifications and variations.Within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (14)
1. a backlight control system for remote controller, is characterized in that, comprising:
Intensity of illumination detecting unit, for detecting the real-time lighting intensity in environment residing for remote controller;
Judging unit, for judging whether the described real-time lighting intensity that described intensity of illumination detecting unit detects is less than or equal to predetermined threshold;
Control unit, during for judging that described real-time lighting intensity is less than or equal to predetermined threshold at described judging unit, state of a control detecting unit detects user and whether contacts described remote controller, and
When described state detection unit detects that user contacts described remote controller, the back light to described remote controller sends start signal, to open described back light;
Whether described state detection unit, contact described remote controller for detecting user.
2. the backlight control system of remote controller according to claim 1, is characterized in that, also comprises:
Timer, at described control unit to after described back light sends described start signal, start timing;
Described control unit also for:
When the timing time of described timer reaches the scheduled time, send shutdown signal, to close described back light to described back light.
3. the backlight control system of remote controller according to claim 2, is characterized in that, described control unit also for:
When the timing time of described timer does not reach the described scheduled time, if the described real-time lighting intensity that described intensity of illumination detecting unit detects is greater than described predetermined threshold, then send shutdown signal to described back light.
4. the backlight control system of remote controller according to claim 2, is characterized in that, described control unit also for:
After sending described shutdown signal to described back light, if the described real-time lighting intensity that described intensity of illumination detecting unit detects is less than or equal to described predetermined threshold, then control described state detection unit continuation detection user and whether contact described remote controller, and
When described state detection unit detects that user contacts described remote controller, again send described start signal to described back light.
5. the backlight control system of remote controller according to claim 2, is characterized in that, described state detection unit comprises: vibrating sensor; And
When described vibrating sensor detects vibration, judge that user contacts described remote controller.
6. the backlight control system of remote controller according to claim 5, is characterized in that, described control unit also for:
The described scheduled time is not reached at the timing time of described counter, and the described real-time lighting intensity that described intensity of illumination detecting unit detects is when being less than or equal to described predetermined threshold always, if described vibrating sensor detects vibration again, then control described timer reclocking.
7. the backlight control system of remote controller according to any one of claim 1 to 6, is characterized in that, described predetermined threshold is less than or equal to 5 luxs.
8. a remote controller, is characterized in that, comprising:
Back light; And
The backlight control system of the remote controller according to any one of claim 1 to 7;
Wherein, the control unit in the backlight control system of described remote controller sends start signal or shutdown signal, to open or to close described back light to described back light.
9. a method for controlling backlight thereof for remote controller, is characterized in that, comprising:
Detect the real-time lighting intensity in environment residing for remote controller;
Judge whether described intensity of illumination is less than or equal to predetermined threshold, if so, then detect user and whether contact described remote controller; And
When detecting that user contacts described remote controller, the back light to described remote controller sends start signal, to open described back light.
10. the method for controlling backlight thereof of remote controller according to claim 9, is characterized in that, also comprises:
After sending described start signal to the back light of described remote controller, start timing; And
When timing time reaches the scheduled time, send shutdown signal, to close described back light to described back light.
The method for controlling backlight thereof of 11. remote controllers according to claim 10, is characterized in that, also comprise:
When described timing time does not reach the described scheduled time, if detect, described real-time lighting intensity is greater than described predetermined threshold, then send shutdown signal to described back light.
The method for controlling backlight thereof of 12. remote controllers according to claim 10, is characterized in that, also comprise:
After sending described shutdown signal to described back light, if detect, described real-time lighting intensity is less than or equal to described predetermined threshold, then continue to detect user and whether contact described remote controller, and
When detecting that user contacts described remote controller, again send described start signal to described back light.
The method for controlling backlight thereof of 13. remote controllers according to claim 10, is characterized in that:
Detect user by vibrating sensor and whether contact described remote controller;
The step whether described detection user contacts described remote controller is specially:
When described vibrating sensor detects vibration, judge that user contacts described remote controller.
The method for controlling backlight thereof of 14. remote controllers according to claim 13, is characterized in that, also comprise:
Do not reach the described scheduled time at described timing time, and when the described real-time lighting intensity detected is less than or equal to described predetermined threshold, if described vibrating sensor detects vibration again, then restart timing always.
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