CN101470999A - Digital photo frame with electricity-saving function and its correlated electricity-saving method - Google Patents
Digital photo frame with electricity-saving function and its correlated electricity-saving method Download PDFInfo
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- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
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Abstract
The invention relates to a digital photo frame with the function of saving electrical energy, which comprises a display panel, a power generating unit for switching a system power according to power control signals, a user detecting unit arranged on the display panel for detecting whether users exist in a specific range to generate a user detecting signal, a central processing unit for adjusting the backlight brightness of the display panel according to the user detecting signal when the power generating unit provides the system power source and generating a power closing signal according to the user detecting signal when the backlight source of the display panel is adjusted to be closed, and a power control unit for closing the system power source according to the power closing signal when the power control unit is used for adjusting the backlight source of the display panel to be closed.
Description
Technical field
The present invention relates to the electricity saving function digital album (digital photo frame) of a kind of tool, relate in particular to a kind of by the existence whether user is arranged in the sensing particular range be used as the economizing on electricity digital album (digital photo frame) of foundation.
Background technology
Have the electronic installation of display panel for digital album (digital photo frame) etc., the most electric power of system can be shown panel and consume.Therefore, for the portable product of originating as systematic electricity with battery, the stand-by time of system generally has very big restriction, and in this case, Design of power saving just becomes a very important problem.
With 3.5 inches digital album (digital photo frame) is example, and between 0.384～0.41 watt (Watt), the power consumption of system's remainder then is approximately 0.85W to the power consumption of finding its display panel as calculated greatly.Hence one can see that, if the electric power that display panel consumed is about about 1/3rd of total system power consumption, therefore can be when display panel is not used, when for example the user leaves, suitably close economize on electricity measures such as display panel backlight, the stand-by time of system can be raised significantly.
The power saving of portable computer or personal computer design at present is that flat-surface television then comes sensitive context brightness by optical sensor, to carry out the adjustment of screen intensity with the triggering situation of keyboard or the mouse foundation as economize on electricity mostly.Yet no matter which kind of mode, whether nearby and the power-saving measures whether decision is correlated with electronic installation all can't accurately detect the user.That is to say that when the user left, the display panel of electronic installation still was in operating state (as digital photo frame still at the state of playing etc.), will cause the meaningless waste of systematic electricity.Therefore, if can come by suitable sensor the user is detected, with the relevant power-saving measures such as backlight of turning off panel, the stand-by time of electronic installation can increase significantly.
Summary of the invention
Therefore, fundamental purpose of the present invention promptly is to provide a kind of tool electricity saving function digital album (digital photo frame).
The present invention discloses the electricity saving function digital album (digital photo frame) of a kind of tool, includes a display panel; One power supply generation unit is used to provide a system power supply, and according to a power control signal, switches this system power supply; One user's detecting unit is arranged on this display panel, and whether be used for detecting has the user to exist in the particular range, to produce user's detection signal; One CPU (central processing unit), be coupled to this power supply generation unit and this user's detecting unit, be used for when this power supply generation unit provides this system power supply, according to this user's detection signal, adjust the back light source brightness of this display panel, and be adjusted to when closing at the backlight of this display panel, according to this user's detection signal, produce a power-off signal; An and power control unit, be coupled to this power supply generation unit and this CPU (central processing unit), the backlight that is used at this display panel is adjusted to when closing, according to this power-off signal, produce this power control signal, close this system power supply to control this power supply generation unit.
The present invention also discloses a kind of power-saving method that is used for a digital album (digital photo frame), and this power-saving method includes according to user's trigger pip, calculates one first standby time of this digital album (digital photo frame), and judges that whether this first standby time is greater than one first preset value; In this first standby time during, open user's detecting unit greater than this first preset value; According to user's detection signal or this user's trigger pip that this user's detecting unit is produced, calculate one second standby time of this digital album (digital photo frame), and judge that whether this second standby time is greater than one second preset value; In this second standby time during, close the backlight of a display panel of this digital album (digital photo frame) greater than this second preset value; According to user's detection signal or this user's trigger pip that this user's detecting unit is produced, calculate one the 3rd standby time of this digital album (digital photo frame), and judge that whether the 3rd standby time is greater than one the 3rd preset value; And, close a system power supply of this digital album (digital photo frame) in the 3rd standby time during greater than the 3rd preset value.
The present invention also discloses a kind of power-saving method that is used for a digital album (digital photo frame), and this power-saving method includes according to user's trigger pip, calculates one first standby time of this digital album (digital photo frame), and judges that whether this first standby time is greater than one first preset value; In this first standby time during, open user's detecting unit, and the back light source brightness of a display panel of this digital album (digital photo frame) is adjusted greater than this first preset value; According to user's detection signal or this user's trigger pip that this user's detecting unit is produced, calculate one second standby time of this digital album (digital photo frame), and judge that whether this second standby time is greater than one second preset value; In this second standby time during, judge whether the backlight of this digital album (digital photo frame) has been adjusted to closed condition greater than this second preset value; After the back light source brightness of this display panel is adjusted to closing state, the user's detection signal or this user's trigger pip that are produced according to this user's detecting unit, calculate one the 3rd standby time of this digital album (digital photo frame), and judge that whether the 3rd standby time is greater than one the 3rd preset value; And, close the system power supply of this digital album (digital photo frame) the 3rd standby time during greater than the 3rd preset value.
Description of drawings
Fig. 1 is the functional-block diagram of the electricity saving function digital album (digital photo frame) of a tool of the embodiment of the invention.
Fig. 2 is the synoptic diagram of an economize on electricity flow process of first embodiment of the invention.
Fig. 3 is the synoptic diagram of an economize on electricity flow process of second embodiment of the invention.
Fig. 4 is an embodiment synoptic diagram of power supply generation unit among Fig. 1.
The primary clustering symbol description:
10 digital album (digital photo frame)
110 display panels
120 power supply generation units
130 user's detecting units
140 CPU (central processing unit)
150 power control units
160 external clock generation units
170 power switches
180 storeies
190 system buss
122 rechargeable batteries
124 power transistor switch
126 clock power generators
135 delay units
Func_1～Func_n function button
The PWR_CTRL power control signal
The PWR system power supply
PWR_OFF power-off signal
USR_DETECT user's detection signal
The CLK_TRG clock trigger signal
USR_CTRL user's control signal
PWR_TRG power supply trigger pip
20,30 economize on electricity flow processs
200,210,220,230,240,250,260,270,300,310,320,330,340,350,360,370 steps
Embodiment
Please refer to Fig. 1, Fig. 1 is the functional-block diagram of the electricity saving function digital album (digital photo frame) 10 of a tool of the embodiment of the invention.Digital album (digital photo frame) 10 includes a display panel 110, a power supply generation unit 120, user's detecting unit 130, a CPU (central processing unit) 140 and a power control unit 150.Power supply generation unit 120 is used to provide a system power supply PWR, and opens or close this system power supply PWR according to a power control signal PWR_CTRL.User's detecting unit 130 is arranged on the display panel 110, and whether be used for detecting has the user to exist in the particular range, to produce user's detection signal USR_DETECT.CPU (central processing unit) 140 is coupled to user's detecting unit 130 and power supply generation unit 120, be used for when power supply generation unit 120 provides system power supply PWR, according to user's detection signal USR_DETECT, adjust the back light source brightness of display panel 110, and be adjusted to when closing at the backlight of display panel 110, according to user's detection signal USR_DETECT, produce a power-off signal PWR_OFF.Power control unit 150 is coupled to power supply generation unit 120, user's detecting unit 130 and CPU (central processing unit) 140, the back light source brightness that is used at display panel 110 is adjusted to when closing, according to power-off signal PWR_OFF, produce a power control signal PWR_CTRL, with control power supply generation unit 120 shutdown system power supply PWR.Preferably, user's detecting unit 130 is a passive infrared sensor (Passive Infra-Red Sensor), the infrared radiation that its difference sensing user by context and human body temperature in this particular range is produced when moving changes, to produce user's detection signal USR_DETECT, it can also comprise a delay unit 135.The use detection signal USR_DETECT that delay unit 135 is exported user's detecting unit 130 at a specified time interval takes a sample, and export a corresponding sampling result to CPU (central processing unit) 140 and power control unit 150, to avoid the misoperation of digital album (digital photo frame) 10.
Therefore, by user's detecting unit 130, whether the digital album (digital photo frame) 10 of the embodiment of the invention can sense has the user to exist in this particular range, with generation user detection signal USR_DETECT, and then as the reference frame of economizing on electricity.For instance, when digital album (digital photo frame) 10 in normal power supply state following time, CPU (central processing unit) 140 can judge whether there is the user in the sensing range of user's detecting unit 130 according to user's detection signal USR_DETECT, and adjusts the back light source brightness of display panel 110 according to this.Perhaps, when the back light source brightness of display panel 110 is adjusted to when closing by CPU (central processing unit) 140, if user's detecting unit 130 does not sense yet in this particular range and has the user, 140 of central processing units can further pass through power control unit 150 shutdown system power supply PWR, with the power consumption of saving digital album (digital photo frame) 10, and then the time of increase standby.
In addition, please continue with reference to figure 1, digital album (digital photo frame) 10 also includes an external clock generation unit 160, a power switch 170 and a storer 180.External clock generation unit 160 is coupled to power control unit 150 and CPU (central processing unit) 140, according to a Preset Time (for example: the quarter-bell time that the user sets), produce a clock trigger pip CLK_TRG is used for.Power switch 170 is coupled to power control unit 150 and CPU (central processing unit) 140, is used for producing a power supply trigger pip PWR_TRG according to user's control signal USR_CTRL.Storer 180 is coupled to CPU (central processing unit) 140 by a system bus 190, is used for storage data.Preferably, digital album (digital photo frame) 10 can also be provided with function button Func_1～Func_n, be used for touch action according to the user, produce corresponding trigger event, carry out corresponding function (for example playing next pictures or deletion picture etc.) with control central processing unit 140.In this case, digital album (digital photo frame) 10 is except carrying out the corresponding power save function according to user's detection signal USR_DETECT, the trigger event that it can also be produced according to clock trigger signal CLK_TRG, power supply trigger pip PWR_TRG or function button Func_1～Func_n is adjusted operations such as the back light source brightness of display panel 110 or shutdown system power supply PWR.
On the other hand, when the system power supply PWR of digital album (digital photo frame) 10 was closed, this moment, central processing unit 140 was in disabled state, and only user's detecting unit 130, external clock generation unit 160 and power switch 170 are still kept its normal operation in the system.Wherein, user's detecting unit 130 and external clock generation unit 160 provide its running required power supply by the rechargeable battery in the power supply generation unit 120, and under some special situation, when not having electricity as rechargeable battery, 160 of external clock generation units can be kept its running by a clock power supply generator 126 (for example mercury battery) in addition.Therefore, when the system power supply PWR of digital album (digital photo frame) 10 is closed, the power control unit 150 of the embodiment of the invention still can trigger according to user's detection signal USR_DETECT, clock trigger signal CLK_TRG and power supply trigger pip PWR_TRG and produce power control signal PWR_CTRL, with control power supply generation unit 120 open system power supply PWR again, and then the mode of operation of recovery digital album (digital photo frame) 10.That is to say, when the system power supply PWR of digital album (digital photo frame) 10 is closed,, user's detecting unit 130 produces that user's detection signal USR_DETECT, user start power switch 170 if detecting the user in this particular range and when producing power supply trigger pip PWR_TRG or external clock generator 160 and producing clock trigger signal CLK_TRG according to a Preset Time, therefore power control unit 150 can be triggered and produce power control signal PWR_CTRL, to control this power supply generation unit open system power supply PWR again.About the detail operations flow process of digital album (digital photo frame) 10, ask for an interview following explanation.
Please refer to Fig. 2, Fig. 2 is the synoptic diagram of an economize on electricity flow process 20 of first embodiment of the invention.Economize on electricity flow process 20 is used for realizing the electricity-saving function of digital album (digital photo frame) 10, and it includes the following step:
Step 200: beginning.
Step 210: calculate one first standby time of digital album (digital photo frame) 10, and judge that whether this first standby time is greater than one first preset value.If carry out step 220; If not, carry out step 200.
Step 220: produce an economize on electricity information.
Step 230: calculate one second standby time of digital album (digital photo frame) 10, and judge that whether this second standby time is greater than one second preset value.If carry out step 240; If not, carry out step 200.
Step 240: the backlight of closing display panel 110.
Step 250: calculate one the 3rd standby time of digital album (digital photo frame) 10, and judge that whether the 3rd standby time is greater than one the 3rd preset value.If carry out step 260; If not, carry out step 200.
Step 260: shutdown system power supply PWR.
Step 270: finish.
According to economize on electricity flow process 20, CPU (central processing unit) 140 is at first calculated this first standby time of digital album (digital photo frame) 10 and is judged that whether this first standby time is greater than this first preset value (step 210) according to user's trigger pip.Wherein, this user's trigger pip comprises the trigger event that above-mentioned clock trigger signal CLK_TRG, power supply trigger pip PWR_TRG or function button Func_1～Func_n are produced.Therefore, if central processing unit 140 detect trigger event that clock trigger signal CLK_TRG, power supply trigger pip PWR_TRG or function button Func_1～Func_n produced one of them the time, then stop to calculate this first standby time, and reenter economize on electricity flow process 20.And when this first standby time during greater than this first preset value, 140 of CPU (central processing unit) produce an economize on electricity information (step 220), this economize on electricity information can be an information shown on the display panel 110 or by promptings such as sound or light, be used for reminding user's digital album (digital photo frame) 10 to enter the economize on electricity flow process, to avoid the causing user to feel lofty situation.Thus, when if the user still desires to proceed operation such as picture browsing, the user can make appropriate responsive, as touch function button Func_1～Func_n etc., to end economize on electricity flow process 20, avoid digital album (digital photo frame) 10 to cause the user to feel lofty situation generation because of carrying out follow-up power save function (as closing the backlight of display panel 110 or system power supply PWR etc.).
Then, central processing unit 140 starts user's detecting unit 130, with according to user's detection signal USR_DETECT and this user's trigger pip (being the trigger event that clock trigger pip CLK_TRG, power supply trigger pip PWR_TRG or function button Func_1～Func_n are produced), calculate this second standby time of digital album (digital photo frame) 10.If this second standby time, CPU (central processing unit) 140 was closed the backlight of display panel 110, so that digital album (digital photo frame) 10 enters a first segment power mode (step 240) during greater than this second preset value; On the contrary, when do not reach this second preset value this second standby time, if central processing unit 140 detects the trigger event that user's detection signal USR_DETECT, clock trigger signal CLK_TRG, power supply trigger pip PWR_TRG or function button Func_1～Func_n are produced, then carry out corresponding action (for example recover the playing pictures operation, carry out alarm or pass through system bus 190 access memories 180 etc.), and close user's detecting unit 130 to reenter economize on electricity flow process 20.That is to say, when surpass this first preset value and this second preset value sum the standby time of digital album (digital photo frame) 10, if CPU (central processing unit) 140 does not receive the trigger event that user's detection signal USR_DETECT, clock trigger signal CLK_TRG that external clock generation unit 160 is triggered according to a special time, power supply trigger pip PWR_TRG that user's power-on switch 170 is produced or function button Func_1～Func_n are produced yet, then close the backlight of display panel 110, to save systematic electricity consumption.
Then, CPU (central processing unit) 140 begins to calculate the 3rd standby time of digital album (digital photo frame) 10, and judges that whether the 3rd standby time is greater than the 3rd preset value (step 250).Similarly, central processing unit 140 calculated for the 3rd standby time according to the trigger event that user's detection signal USR_DETECT, clock trigger signal CLK_TRG, power supply trigger pip PWR_TRG or function button Func_1～Func_n are produced.If the 3rd standby time is during greater than the 3rd preset value, 140 of central processing units produce power control signal PWR_CTRL by power control unit 150, with control power supply generation unit 120 shutdown system power supply PWR (step 260).On the contrary, if central processing unit 140 is not when reach the 3rd preset value the 3rd standby time as yet, detect the trigger event that user's detection signal USR_DETECT, clock trigger signal CLK_TRG, power supply trigger pip PWR_TRG or function button Func_1～Func_n are produced, then close user's detecting unit 130, to reenter economize on electricity flow process 20, carry out corresponding action simultaneously, for example recover the playing pictures operation or carry out alarm etc.
That is to say, when surpass this first preset value, this second preset value and the 3rd preset value sum the standby time of digital album (digital photo frame) 10, if this moment, central processing unit 140 did not still receive the trigger event that any user's detection signal USR_DETECT, clock trigger signal CLK_TRG, power supply trigger pip PWR_TRG or function button Func_1～Func_n are produced, then further control power control unit 120 and produce power control signal PWR_CTRL, with shutdown system power supply PWR, and enter one second energy-saving mode.Thus, the embodiment of the invention can be by the backlight of suitably closing display panel 110, even the shutdown system power supply, to prolong the stand-by time of digital album (digital photo frame) 10.
On the other hand, when the system power supply PWR of digital album (digital photo frame) 10 is closed, this moment, central processing unit 140 was in disabled state, and only user's detecting unit 130, external clock generation unit 160 and power switch 170 are still kept its normal operation by the rechargeable battery in the power supply generation unit 120 in the system.In this case, power control unit 150 still can produce power control signal PWR_CTRL according to user's detection signal USR_DETECT, clock trigger signal CLK_TRG and power supply trigger pip PWR_TRG triggering, with control power supply generation unit 120 open system power supply PWR again, and then the mode of operation of recovery digital album (digital photo frame) 10.That is to say, when system power supply PWR is closed, digital album (digital photo frame) 10 is only when user's detecting unit 130 detects user, user and starts power switch 170 or external clock generator 160 and produce clock trigger signal CLK_TRG according to a Preset Time in this particular range, just can be waken up to carry out corresponding operation, for example recover the broadcast of flat-panel screens 110 or carry out alarm etc.Certainly,, economize on electricity flow process 20 be will reenter,, the backlight of display panel 110 or system power supply PWR etc. for example closed to carry out follow-up power save function when digital album (digital photo frame) 10 is waken up when carrying out corresponding operation.
Therefore, digital album (digital photo frame) 10 of the present invention is the foundations that are used as economizing on electricity by the existence whether user is arranged in the sensing particular range, and then close the back light source brightness or the system power supply of display panel 110, thus, the power consumption of digital album (digital photo frame) 10 can suitably be saved, not only promote its stand-by time, also increase the accuracy of power save function.It should be noted that, economize on electricity flow process 20 of the present invention only is an explanation for example, but not be restriction of the present invention, those of ordinary skills should look actual demand and do suitable variation, for instance, except the power supply of closing display panel 110 (step 240), can also comprise corresponding variations such as reducing the system operation clock in this first segment power mode, it also belongs to scope of the present invention.
Please continue with reference to figure 3, Fig. 3 is the synoptic diagram of an economize on electricity flow process 30 of second embodiment of the invention.Economize on electricity flow process 30 is used for realizing the electricity-saving function of digital album (digital photo frame) 10, and it includes the following step:
Step 300: beginning.
Step 310: calculate one first standby time of digital album (digital photo frame) 10, and judge that whether this first standby time is greater than one first preset value.If carry out step 320; If not, carry out step 300.
Step 320: the back light source brightness of adjusting display panel 110.
Step 330: calculate one second standby time of digital album (digital photo frame) 10, and judge that whether this second standby time is greater than one second preset value.If carry out step 340; If not, carry out step 300.
Step 340: whether the back light source brightness of judging display panel 110 has been adjusted to is closed.If carry out step 350; If not, carry out step 320.
Step 350: calculate one the 3rd standby time of digital album (digital photo frame) 10, and judge that whether the 3rd standby time is greater than one the 3rd preset value.If carry out step 360; If not, carry out step 300.
Step 360: shutdown system power supply PWR.
Step 370: finish.
According to economize on electricity flow process 30, CPU (central processing unit) 140 is at first calculated this first standby time of digital album (digital photo frame) 10 and is judged that whether this first standby time is greater than this first preset value (step 310) according to user's trigger pip.Wherein, this user's trigger pip comprises the trigger event that above-mentioned clock trigger signal CLK_TRG, power supply trigger pip PWR_TRG or function button Func_1～Func_n are produced.When standby time of digital album (digital photo frame) 10 during greater than this first preset value, if CPU (central processing unit) 140 does not receive the trigger event that clock trigger signal CLK_TRG, power supply trigger pip PWR_TRG or function button Func_1～Func_n are produced yet, then begin to carry out the adjustment of the back light source brightness of display panel 110, to save systematic electricity consumption (step 320).
Then, central processing unit 140 starts user's detecting unit, calculates this second standby time (step 330) of digital album (digital photo frame) 10 according to user's detection signal USR_DETECT and this user's trigger pip with beginning.If when not reaching this second preset value this second standby time, central processing unit 140 detects the trigger event that user's detection signal USR_DETECT, clock trigger signal CLK_TRG, power supply trigger pip PWR_TRG or function button Func_1～Func_n are produced, then recover the brightness of display panel 110, carrying out corresponding action (for example recover playing pictures operation, carry out alarm or by system bus 190 access memories 180 etc.), and close user's detecting unit 130 to reenter economize on electricity flow process 30.
On the contrary, if the standby time of digital album (digital photo frame) 10 is when surpassing this first preset value and this second preset value sum, central processing unit 140 judges that the backlight of display panel 110 has not been adjusted to the darkest (being closed condition), to carry out follow-up economize on electricity flow process (step 340).If the backlight of display panel 110 has been adjusted to the darkest (being closed condition), then begin to calculate the 3rd standby time (step 350) of digital album (digital photo frame) 10, and in the 3rd standby time during, and then shutdown system power supply PWR (step 360) greater than the 3rd preset value; On the contrary, if being adjusted to as yet, the back light source brightness of display panel 110 do not close, then repeated execution of steps 320 is to step 340, to adjust the back light source brightness of display panel 110 stage by stage, up to the backlight of display panel 110 be adjusted to close till, perhaps, operate or carry out corresponding actions such as alarm and carry out as recovering playing pictures because of receiving the trigger event that user's detection signal USR_DETECT, clock trigger signal CLK_TRG, power supply trigger pip PWR_TRG or function button Func_1～Func_n are produced.
Therefore, be compared to economize on electricity flow process 20, because the back light source brightness of display panel 110 can be adjusted by segmentation in the present embodiment, it can increase the elasticity in the use significantly.Note that time preset value of the present invention (as first preset value, second preset value etc.) is not limited to special value, but can do suitable adjustment according to the actual requirements, it also belongs to scope of the present invention.
In addition, digital album (digital photo frame) 10 of the present invention can be implemented by any hardware or software mode, as long as have identical function, all belongs to scope of the present invention.For instance, please refer to Fig. 4, Fig. 4 is an embodiment synoptic diagram of power supply generation unit 120 among Fig. 1.Power supply generation unit 120 includes a rechargeable battery 122 and a power transistor switch 124, wherein power transistor switch 124 can be used for according to power control signal PWR_CTRL, the electric connection of control rechargeable battery 122 and CPU (central processing unit) 140 is to open or shutdown system power supply PWR.Similarly, the photoresistance that user's detecting unit 130 also can change by light sensing perhaps judges that with acoustic reflection the ultrasonic sensor whether user exists realizes.
In sum, the electricity saving function digital album (digital photo frame) of tool of the present invention is the foundation that is used as economizing on electricity by the existence whether user is arranged in the sensing particular range, and then the back light source brightness or the shutdown system power supply of adjustment display panel, thus, the present invention not only can promote the stand-by time of digital album (digital photo frame), more can increase the accuracy of power save function.
The above only is preferred embodiment of the present invention, and all equivalent variations and modifications of being done according to claim scope of the present invention all should belong to covering scope of the present invention.
Claims (18)
1. electricity saving function digital album (digital photo frame) of tool comprises:
One display panel;
One power supply generation unit is used to provide a system power supply, and according to a power control signal, switches described system power supply;
One user's detecting unit is arranged on the described display panel, and whether be used for detecting has the user to exist in the particular range, to produce user's detection signal;
One CPU (central processing unit), be coupled to described power supply generation unit and described user's detecting unit, be used for when described power supply generation unit provides described system power supply, according to described user's detection signal, adjust the back light source brightness of described display panel, and be adjusted to when closing at the backlight of described display panel, according to described user's detection signal, produce a power-off signal; And
One power control unit, be coupled to described power supply generation unit and described CPU (central processing unit), the backlight that is used at described display panel is adjusted to when closing, according to described power-off signal, produce described power control signal, to switch described system power supply be closed condition to control described power supply generation unit.
2. digital album (digital photo frame) as claimed in claim 1 also comprises:
One clock generation unit is coupled to described power control unit and described CPU (central processing unit), is used for according to a Preset Time, produces a clock trigger pip;
One power switch is coupled to described power control unit and described CPU (central processing unit), is used for producing a power supply trigger pip according to user's control signal; And
A plurality of function buttons are coupled to described central processing unit, respectively according to a plurality of user's control signals, produce a plurality of corresponding button trigger pips, carry out a plurality of corresponding functions to control described central processing unit.
3. digital album (digital photo frame) as claimed in claim 2, wherein said power control unit also is used for when described system power supply is closed, according to described user's detection signal, described clock trigger signal, described power supply trigger pip or described a plurality of corresponding button trigger pip, produce described power control signal, open described system power supply again to control described power supply generation unit.
4. digital album (digital photo frame) as claimed in claim 3, wherein said user's detecting unit are by a detecting device selected in the detecting device group, and described detecting device group comprises passive infrared sensor, photoresistance or ultrasonic sensor.
5. digital album (digital photo frame) as claimed in claim 4, wherein said user's detecting unit also comprises a time-delay mechanism, the described use detection signal that described time-delay mechanism is exported described user's detecting unit at a specified time interval is taken a sample, and export a corresponding sampling result to described CPU (central processing unit) and power control unit, to avoid misoperation.
6. digital album (digital photo frame) as claimed in claim 5, wherein said power supply generation unit comprises:
One rechargeable battery is used for supplying the described system power supply of described digital album (digital photo frame) to keep regular event; And
One power transistor switch is used for controlling the electric connection of described rechargeable battery and described CPU (central processing unit) according to described power control signal.
7. power-saving method that is used for a digital album (digital photo frame) comprises:
According to user's trigger pip, calculate one first standby time of described digital album (digital photo frame), and judge that whether described first standby time is greater than one first preset value;
In described first standby time during, open user's detecting unit greater than described first preset value;
According to user's detection signal or the described user's trigger pip that described user's detecting unit is produced, calculate one second standby time of described digital album (digital photo frame), and judge that whether described second standby time is greater than one second preset value;
In described second standby time during, close the backlight of a display panel of described digital album (digital photo frame) greater than described second preset value;
According to user's detection signal or the described user's trigger pip that described user's detecting unit is produced, calculate one the 3rd standby time of described digital album (digital photo frame), and judge that whether described the 3rd standby time is greater than one the 3rd preset value; And
In described the 3rd standby time during, close a system power supply of described digital album (digital photo frame) greater than described the 3rd preset value.
8. power-saving method as claimed in claim 7 also comprises:
In described first standby time during greater than described first preset value, produce an economize on electricity information, entered an economize on electricity flow process to remind the described digital album (digital photo frame) of user.
9. power-saving method as claimed in claim 8 also comprises:
After closing the described system power supply of described digital album (digital photo frame), the user's detection signal or the described user's trigger pip that are produced according to described user's detecting unit, again open the described system power supply of described digital album (digital photo frame) and the backlight of described display panel, and close described user's detecting unit.
10. power-saving method as claimed in claim 9, wherein said user's trigger pip comprises:
One clock trigger pip is produced according to a Preset Time by a clock generation unit;
One power supply trigger pip is produced by a power switch; And
A plurality of function trigger pips are produced by a plurality of function button respectively.
11. power-saving method as claimed in claim 10, user's detection signal that wherein said user's detecting unit produced be described user's detecting unit by detect whether have in the induction range user exist produce.
12. power-saving method as claimed in claim 7, user's detection signal that wherein said user's detecting unit produced be described user's detecting unit by detect whether have in the induction range user exist produce.
13. a power-saving method that is used for a digital album (digital photo frame) comprises:
According to user's trigger pip, calculate one first standby time of described digital album (digital photo frame), and judge that whether described first standby time is greater than one first preset value;
In described first standby time during, open user's detecting unit, and the back light source brightness of a display panel of described digital album (digital photo frame) is adjusted greater than described first preset value;
According to user's detection signal or the described user's trigger pip that described user's detecting unit is produced, calculate one second standby time of described digital album (digital photo frame), and judge that whether described second standby time is greater than one second preset value;
In described second standby time during, judge whether the backlight of described digital album (digital photo frame) has been adjusted to closed condition greater than described second preset value;
After the back light source brightness of described display panel is adjusted to closing state, the user's detection signal or the described user's trigger pip that are produced according to described user's detecting unit, calculate one the 3rd standby time of described digital album (digital photo frame), and judge that whether described the 3rd standby time is greater than one the 3rd preset value; And
In described the 3rd standby time during, close the system power supply of described digital album (digital photo frame) greater than described the 3rd preset value.
14. power-saving method as claimed in claim 13 also comprises:
When the backlight of described display panel is not adjusted to closed condition as yet, adjust the back light source brightness of described display panel again.
15. power-saving method as claimed in claim 14 wherein also comprises:
After closing the described system power supply of described digital album (digital photo frame), the user's detection signal or the described user's trigger pip that are produced according to described user's detecting unit, again open the described system power supply of described digital album (digital photo frame) and the backlight of described display panel, and close described user's detecting unit.
16. power-saving method as claimed in claim 15, wherein said user's trigger pip comprises:
One clock trigger pip is produced according to a Preset Time by a clock generation unit;
One power supply trigger pip is produced by a power switch; And
A plurality of function trigger pips are produced by a plurality of function button respectively.
17. power-saving method as claimed in claim 16, user's detection signal that wherein said user's detecting unit produced be described user's detecting unit by detect whether have in the induction range user exist produce.
18. power-saving method as claimed in claim 13, user's detection signal that wherein said user's detecting unit produced be described user's detecting unit by detect whether have in the induction range user exist produce.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2007103014133A CN101470999B (en) | 2007-12-27 | 2007-12-27 | Digital photo frame with electricity-saving function and its correlated electricity-saving method |
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| CN2007103014133A CN101470999B (en) | 2007-12-27 | 2007-12-27 | Digital photo frame with electricity-saving function and its correlated electricity-saving method |
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| CN101470999A true CN101470999A (en) | 2009-07-01 |
| CN101470999B CN101470999B (en) | 2010-12-22 |
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| CN2007103014133A Expired - Fee Related CN101470999B (en) | 2007-12-27 | 2007-12-27 | Digital photo frame with electricity-saving function and its correlated electricity-saving method |
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| US20110102444A1 (en) * | 2009-04-20 | 2011-05-05 | Tomoko Matsumoto | Information display device and information display method |
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| CN101453537B (en) * | 2007-12-05 | 2011-07-27 | 鹏智科技(深圳)有限公司 | Electronic photo frame having automatic circuit break function |
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- 2007-12-27 CN CN2007103014133A patent/CN101470999B/en not_active Expired - Fee Related
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US20110102444A1 (en) * | 2009-04-20 | 2011-05-05 | Tomoko Matsumoto | Information display device and information display method |
| CN102314289A (en) * | 2010-07-05 | 2012-01-11 | 深圳富泰宏精密工业有限公司 | Transparent touch keyboard |
| CN102346306A (en) * | 2010-07-29 | 2012-02-08 | 晨星软件研发(深圳)有限公司 | Portable electronic device capable of automatically switching operation modes |
| CN102346306B (en) * | 2010-07-29 | 2016-01-20 | 晨星软件研发(深圳)有限公司 | For viewing and admiring the shutter glasses of 3-dimensional image |
| CN102419957A (en) * | 2010-09-28 | 2012-04-18 | 瀚宇彩晶股份有限公司 | Electric property adjusting method for display device |
| CN104851414A (en) * | 2015-05-05 | 2015-08-19 | 成都上生活网络科技有限公司 | Screen brightness adjustment method |
| CN110111700A (en) * | 2019-05-17 | 2019-08-09 | 深圳市梅塞德斯科技有限公司 | A kind of wireless charging advertisement machine and its advertisement broadcast method |
| CN113948016A (en) * | 2021-10-21 | 2022-01-18 | 福建省邮电工程有限公司 | File bulletin display device for community platform and control method thereof |
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