CN108011623A - One-key recovery default setting circuit - Google Patents
One-key recovery default setting circuit Download PDFInfo
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- CN108011623A CN108011623A CN201711421388.2A CN201711421388A CN108011623A CN 108011623 A CN108011623 A CN 108011623A CN 201711421388 A CN201711421388 A CN 201711421388A CN 108011623 A CN108011623 A CN 108011623A
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- circuit
- default setting
- pin
- level signal
- key recovery
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Classifications
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- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03K—PULSE TECHNIQUE
- H03K17/00—Electronic switching or gating, i.e. not by contact-making and –breaking
- H03K17/22—Modifications for ensuring a predetermined initial state when the supply voltage has been applied
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
- G06F1/24—Resetting means
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- Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Input From Keyboards Or The Like (AREA)
Abstract
The invention discloses a kind of One-key recovery default setting circuit, including：Physical button, to press generation low level signal；Circuit is restarted with what the physical button was connected, to restart according to the low level signal into line delay；And the status determination circuit being connected with the physical button, to be set according to the low level signal and judgement symbol position is low, while the factory reset after delay is restarted；Solve the problems, such as that factory reset operation is troublesome.So as to by a key be can be achieved equipment restart and factory reset, the simple degree of operation greatly improve, realize above-mentioned function without the plug of power supply and by the cooperation with other buttons；And the circuit in the present invention is used in some special equipment, the button of the special installation can be made factory reset can be not only realized with a key, but also can be pressed without auxiliary tool, and then extends the function of traditional equipment.
Description
Technical field
The present invention relates to key circuit field, and in particular to a kind of One-key recovery default setting circuit.
Background technology
With the outburst of second industrial revolution, scientific and technical development is advanced by leaps and bounds, and nowadays the relevant technology of electric power has been
Through reaching its maturity.It is well known that electrical equipment the control such as opens, stops and can all set a key circuit, to reach, electricity consumption is convenient, section
The about purpose of electricity consumption.
The household electric appliances such as relatively common electric light, television set and air-conditioning, are both provided with key circuit in daily life,
Such key circuit is fairly simple, is substantially exactly to reach opening, the function of pass hull closure by be opened or closed switch；Also
There is a kind of key circuit, it is somewhat complicated, it is most commonly used that mobile phone, achievees the purpose that shutdown by pushing button for a long time, in short-term
Between push button and achieve the purpose that to light or extinguish Mobile phone screen.
In some smart machines, which can not only realize shutdown, the purpose lighted screen, extinguish screen, may be used also
To realize the functions such as screenshotss, factory reset by coordinating with other buttons.Wherein, factory reset is by (start
Or shutdown or software crash state) pull out power supply, press specific button, then power on again to realize.
For the problem of factory reset operation is troublesome in correlation technique, effective solution party is not yet proposed at present
Case.
The content of the invention
It is very numerous to solve factory reset operation the object of the present invention is to provide a kind of One-key recovery default setting circuit
The problem of trivial.
To achieve these goals, the present invention provides following technical solution：
The present invention provides a kind of One-key recovery default setting circuit, including：
Physical button, to press generation low level signal；
Circuit is restarted with what the physical button was connected, to restart according to the low level signal into line delay；
And the status determination circuit being connected with the physical button, to set and judge according to the low level signal
Flag bit is low, while the factory reset after delay is restarted.
Above-mentioned One-key recovery default setting circuit, it is described to restart circuit and include：Monostable flipflop and delay circuit,
The monostable flipflop is connected with physical button, to be converted to pulse letter according to the low level signal
Number, and control power-off；
The delay circuit is connected with monostable flipflop, to be converted to the low level signal after time rating
High level signal, and control and power on.
Above-mentioned One-key recovery default setting circuit, the monostable flipflop include at least：First pin, second pin,
3rd pin and the 4th pin,
First pin is connected with key switch, to detect the low level signal；
The second pin, to be converted into pulse signal after the low level signal is detected；
Third and fourth described pin is connected with delay circuit.
Above-mentioned One-key recovery default setting circuit, the delay circuit include：It is parallel between third and fourth described pin
Delay capacitor, diode, the time delay resistance being connected with the 3rd pin, and restart the pull-up electricity that circuit is connected with described
Resistance,
The delay capacitor and time delay resistance, to obtain the time rating；
The diode, to discharge the energy between third and fourth described pin；
The pull-up resistor, to restart circuit by described and be pulled to high level.
Above-mentioned One-key recovery default setting circuit, the status determination circuit include：KCOL circuits, PRELOADER circuits
Dispatch from the factory device with recovery,
The KCOL circuits are connected with physical button, are low to set flag bit according to the low level signal；
PRELOADER circuits are connected with KCOL circuits, to carry out whether flag bit is low judgement；
The recovery device that dispatches from the factory is connected with PRELOADER circuits, if restarting success to be delayed, and determines the mark
Will position is low, then factory reset.
Above-mentioned One-key recovery default setting circuit, the circuit to android system One-key recovery default setting.
Above-mentioned One-key recovery default setting circuit, further includes：Human-computer interaction content during showing factory reset
Display device, the display device are connected with status determination circuit.
Above-mentioned One-key recovery default setting circuit, the display device are the aobvious of smart mobile phone, tablet computer or PC computers
Display screen.
Above-mentioned One-key recovery default setting circuit, further includes：First protective resistance, the second protective resistance and the 3rd protection electricity
Resistance,
First protective resistance is arranged between physical button and KCOL circuits, and second protective resistance, which is arranged at, to be connect
Ground wire and between restarting circuit, the 3rd protective resistance is arranged between ground wire and key switch,
First, second and third protective resistance, to electrostatic protection.
Above-mentioned One-key recovery default setting circuit, second protective resistance and the 3rd protective resistance are varistor.
One-key recovery default setting circuit provided by the invention, has the advantages that：So that can be real by a key
Existing equipment restart and factory reset, the simple degree of operation greatly improve, without power supply plug and by and its
Above-mentioned function is realized in the cooperation of his button；And the circuit in the present invention is used in some special equipment, the spy can be made
The button of different equipment can not only realize factory reset with a key, but also can be pressed without auxiliary tool, Jin Erkuo
The function of traditional equipment is opened up.
Brief description of the drawings
In order to illustrate the technical solutions in the embodiments of the present application or in the prior art more clearly, below will be to institute in embodiment
Attached drawing to be used is needed to be briefly described, it should be apparent that, drawings in the following description are only one described in the present invention
A little embodiments, for those of ordinary skill in the art, can also obtain other attached drawings according to these attached drawings.
Fig. 1 is the structure diagram of One-key recovery default setting circuit provided in an embodiment of the present invention；
Fig. 2 is the structure diagram for the One-key recovery default setting circuit that one embodiment of the present invention provides；
Fig. 3 is the structure diagram for the One-key recovery default setting circuit that one embodiment of the present invention provides；
Fig. 4 is the structure diagram for the One-key recovery default setting circuit that one embodiment of the present invention provides；
Fig. 5 is one of circuit diagram of One-key recovery default setting circuit provided in an embodiment of the present invention；
Fig. 6 is the two of the circuit diagram of One-key recovery default setting circuit provided in an embodiment of the present invention；
Fig. 7 is the three of the circuit diagram of One-key recovery default setting circuit provided in an embodiment of the present invention.
Description of reference numerals：
1st, physical button；2nd, circuit is restarted；3rd, status determination circuit；21st, monostable flipflop；22nd, delay circuit；31、
KCOL circuits；32nd, PRELOADER circuits；33rd, the device that dispatches from the factory is recovered；4th, display screen.
Embodiment
In order to make those skilled in the art more fully understand application scheme, below in conjunction with the embodiment of the present application
Attached drawing, is clearly and completely described the technical solution in the embodiment of the present application, it is clear that described embodiment is only
The embodiment of the application part, instead of all the embodiments.Based on the embodiment in the application, ordinary skill people
Member's all other embodiments obtained without making creative work, should all belong to the model of the application protection
Enclose.
It should be noted that term " first " in the description and claims of this application and above-mentioned attached drawing, "
Two " etc. be for distinguishing similar object, without for describing specific order or precedence.It should be appreciated that so use
Data can exchange in the appropriate case, so as to embodiments herein described herein.In addition, term " comprising " and " tool
Have " and their any deformation, it is intended that cover it is non-exclusive include, for example, containing series of steps or unit
Process, method, system, product or equipment are not necessarily limited to those steps clearly listed or unit, but may include without clear
It is listing to Chu or for the intrinsic other steps of these processes, method, product or equipment or unit.
It should be noted that in the case where there is no conflict, the feature in embodiment and embodiment in the application can phase
Mutually combination.Describe the application in detail below with reference to the accompanying drawings and in conjunction with the embodiments.
As shown in figs. 1-7, a kind of One-key recovery default setting circuit provided in an embodiment of the present invention, including：Physical button
1, to press generation low level signal；Circuit 2 is restarted with what the physical button 1 was connected, to believe according to the low level
Number restart into line delay；And the status determination circuit 3 being connected with the physical button 1, to according to the low level signal
Set and judgement symbol position is low, while the factory reset after delay is restarted.
Specifically, physical button 1 refers to that pressing can be deformed or the component of displacement, when removing pressing force, recover
To initial position；Physical button 1, ground wire is shorted to will restart circuit 2 and status determination circuit 3；As in the present embodiment
Preferably, the form of pressing is pressing for a long time；It can be pressed when the button applies to mobile phone, tablet computer etc. with the short time
The bright screen of pressure point distinguishes, and two kinds of even multiple functions are realized by a button.Low level signal refers to press for a long time
Caused lower edge signal, the lower edge signal can be restarted circuit 2 and be identified, and then ensure that restarting circuit 2 generates phase
The signal answered is to realize that delay is restarted；Delay restarts and instigates the equipment of default setting to be restored first to power off, by it is certain when
Between after power on automatically again, and then realize restart；Lower edge signal can also be identified by status determination circuit 3, and then realize mark
Will position is set and flag bit is low judgement, and guarantee is provided for factory reset.A key in the actual use present invention
During factory reset circuit, physical button 1 is pressed for a long time, produces a low level signal, restarts circuit 2 and the low level is believed
Number conversion after, while restarting into line delay, flag bit is arranged to low by status determination circuit 3, and to the flag bit whether
Judged to be low, if being judged as, the time that low and delay is restarted reaches, and factory reset, at this time, stops pressing, equipment
Return to the state of default setting；So as to by a key be can be achieved equipment restart and factory reset, operation it is simple
Degree greatly improves, and above-mentioned function is realized without the plug of power supply and by the cooperation with other buttons；And by the present invention
In circuit be used in some special equipment in, the button of the special installation can be made not only can to realize that recovery is dispatched from the factory with a key and set
Put, and can be pressed without auxiliary tool, and then extend the function of traditional equipment；Optionally, can also be for a long time
Stop pressing after pressing, press physical button 1 again after restart, realize same beneficial effect.
It is described to restart circuit 2 and include as preferable in the present embodiment：Monostable flipflop 21 and delay circuit 22, institute
State monostable flipflop 21 with physical button 1 to be connected, to be converted to pulse signal according to the low level signal, and control
Power-off；The delay circuit 22 is connected with monostable flipflop 21, to change the low level signal after time rating
For high level signal, and control and power on.Signal conversion is carried out by monostable flipflop 21, low level signal is converted into low arteries and veins
Signal is rushed, and then the enabled foot of whole circuit power can be dragged down by the pulse signal, is realized to device powers down；By prolonging
When circuit 22 realize power-off after powering on again, when reaching time rating, low level signal is converted into high level signal, Jin Erneng
Enough realize powering on for equipment；The intelligence degree of circuit is improved, and without will power off and power on respectively by different triggerings
Mode is realized, it is only necessary to is once pressed for a long time, is further lifted degree easy to operate.
As seen in figs. 5-6, as preferably, the monostable flipflop 21 includes at least in the present embodiment：First pin,
Second pin, the 3rd pin and the 4th pin, first pin are connected with key switch, to detect the low level letter
Number；The second pin, to be converted into pulse signal after the low level signal is detected；Described third and fourth draws
Foot is connected with delay circuit 22；Further, the delay circuit 22 includes：Prolonging between third and fourth pin described in being parallel to
When capacitance, diode, the time delay resistance being connected with the 3rd pin, and with the pull-up resistor restarted circuit 2 and be connected,
The delay capacitor and time delay resistance, to obtain the time rating；The diode, draws to discharge described third and fourth
Energy between foot；The pull-up resistor, to restart circuit 2 by described and be pulled to high level.First pin is 1A_N, is passed through
First pin detection low level signal (trailing edge signal)；Second pin is 1Q_N, and the conversion of signal is carried out by second pin
And export；3rd pin is 1CEXT, and the 4th pin is 1REXT, is connected by third and fourth pin with delay circuit 22, Jin Erbao
The realization of function is restarted in card delay；By the cooperation of delay capacitor and time delay resistance, the timing effect in time rating is realized,
And then it can be delayed and restart within the time；Realize that energy discharges by diode, and then prevent short circuit；It is auxiliary by pull-up resistor
The conversion of low-high level signal is helped, and then makes to restart circuit 2 and returns to high level, reaches the effect restarted automatically.In 1RD_N
In the case of being set high to, if 1A_N feet detect trailing edge, the low pulse letter that 1Q_N meeting output durations are T
Number, T=0.45*C1072*R1055.1Q_N can drag down the enabled foot of whole circuit power, make down circuitry, after time T,
1Q_N can recover high level state, and circuit re-powers.Further, monostable flipflop 21 further includes：5th pin
(1RD_N), the input of high level is realized by the 5th pin；Two the 6th pins, realize that reserved test makes by the 6th pin
With.
As shown in fig. 6, it will be understood by those skilled in the art that monostable flipflop 21 is that can trigger monostable multi-harmonic-oscillations again
Device, its model 74HC123.
As preferably, the status determination circuit 3 includes in the present embodiment：KCOL circuits 31, PRELOADER circuits 32
Dispatch from the factory device 33 with recovery, the KCOL circuits 31 are connected with physical button 1, indicate to be set according to the low level signal
Position is low；PRELOADER circuits 32 are connected with KCOL circuits 31, to carry out whether flag bit is low judgement；The recovery
The device 33 that dispatches from the factory is connected with PRELOADER circuits 32, if restarting success to delay, and determines the flag bit to be low, then
Factory reset.During circuit re-powers, since physical button 1 is still under pressed state, KCOL circuits 31 1
Directly keep low, PRELOADER circuits 32 judge KCOL circuits 31 to be low at this time, then are set in advance in dispatching from the factory device 33 into recovery
The flow set, starts factory reset, and at this time, user can see interactive interface (display screen 4 of equipment) prompting " equipment
Carrying out factory reset ", it then can unclamp button；Flag bit is made one within the time by long-press physical button 1
Directly in low.
It should be understood by those skilled in the art that PRELOADER circuits 32 refer to preloader.
As preferable in the present embodiment, the circuit to android system One-key recovery default setting.One key is extensive
The function of multiple default setting is mutually compatible with the equipment of android system, and the equipment of any installation android system can be carried out
One-key recovery default setting, wide adaptability；Further, also to android system and/or iOS system and/or Windows
The One-key recovery default setting of system, further lifts adaptability of the circuit for operating system.
As preferable in the present embodiment, further include：The display of human-computer interaction content during showing factory reset
Device, the display device are connected with status determination circuit 3.Further, the display device is smart mobile phone, tablet computer
Or the display screen 4 of PC computers.The display device carried by mobile phone, tablet or pc computers shows human-computer interaction content,
Human-computer interaction content and above-mentioned " equipment is carrying out factory reset "；It can remind and whether locate to reply residing for personnel equipment
The state of default setting, and can understand whether circuit is in abnormal condition rapidly, improve the Experience Degree of user.
As preferable in the present embodiment, further include：First protective resistance, the second protective resistance and the 3rd protective resistance,
First protective resistance is arranged between physical button 1 and KCOL circuits 31, and second protective resistance is arranged at ground wire
And between restarting circuit 2, the 3rd protective resistance is arranged between ground wire and key switch, first, second and third protection
Resistance, to electrostatic protection.As preferably, second protective resistance and the 3rd protective resistance are pressure-sensitive electricity in the present embodiment
Resistance.Electrostatic protection is realized by first, second and third protective resistance, so as to prevent electrostatic breakdown circuit, improves security and durable
Property.
Some one exemplary embodiments that only the invention has been described by way of explanation above, undoubtedly, for ability
The those of ordinary skill in domain, without departing from the spirit and scope of the present invention, can be with a variety of modes to institute
The embodiment of description is modified.Therefore, above-mentioned attached drawing and description are regarded as illustrative in nature, and should not be construed as to the present invention
The limitation of claims.
Claims (10)
- A kind of 1. One-key recovery default setting circuit, it is characterised in that including：Physical button, to press generation low level signal；Circuit is restarted with what the physical button was connected, to restart according to the low level signal into line delay；And the status determination circuit being connected with the physical button, to set simultaneously judgement symbol according to the low level signal Position is low, while the factory reset after delay is restarted.
- 2. One-key recovery default setting circuit according to claim 1, it is characterised in that described to restart circuit and include：It is single Steady state trigger and delay circuit,The monostable flipflop is connected with physical button, to be converted to pulse signal according to the low level signal, and Control power-off；The delay circuit is connected with monostable flipflop, the low level signal is converted to high electricity after time rating Ordinary mail number, and control and power on.
- 3. One-key recovery default setting circuit according to claim 2, it is characterised in that the monostable flipflop is at least Including：First pin, second pin, the 3rd pin and the 4th pin,First pin is connected with key switch, to detect the low level signal；The second pin, to be converted into pulse signal after the low level signal is detected；Third and fourth described pin is connected with delay circuit.
- 4. One-key recovery default setting circuit according to claim 3, it is characterised in that the delay circuit includes：And Delay capacitor, the diode being coupled between third and fourth described pin, the time delay resistance being connected with the 3rd pin, Yi Jiyu The pull-up resistor restarted circuit and be connected,The delay capacitor and time delay resistance, to obtain the time rating；The diode, to discharge the energy between third and fourth described pin；The pull-up resistor, to restart circuit by described and be pulled to high level.
- 5. One-key recovery default setting circuit according to claim 1, it is characterised in that the status determination circuit bag Include：KCOL circuits, PRELOADER circuits and recovery are dispatched from the factory device,The KCOL circuits are connected with physical button, are low to set flag bit according to the low level signal；PRELOADER circuits are connected with KCOL circuits, to carry out whether flag bit is low judgement；The recovery device that dispatches from the factory is connected with PRELOADER circuits, if restarting success to be delayed, and determines the flag bit To be low, then factory reset.
- 6. One-key recovery default setting circuit according to claim 1, it is characterised in that the circuit is to Android The One-key recovery default setting of system.
- 7. One-key recovery default setting circuit according to claim 1, it is characterised in that further include：Recover to show The display device of human-computer interaction content during default setting, the display device are connected with status determination circuit.
- 8. One-key recovery default setting circuit according to claim 7, it is characterised in that the display device is intelligent hand The display screen of machine, tablet computer or PC computers.
- 9. according to any One-key recovery default setting circuits of claim 1-8, it is characterised in that further include：First protects Resistance, the second protective resistance and the 3rd protective resistance are protected,First protective resistance is arranged between physical button and KCOL circuits, and second protective resistance is arranged at ground wire And between restarting circuit, the 3rd protective resistance is arranged between ground wire and key switch,First, second and third protective resistance, to electrostatic protection.
- 10. One-key recovery default setting circuit according to claim 9, it is characterised in that second protective resistance and 3rd protective resistance is varistor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711421388.2A CN108011623A (en) | 2017-12-25 | 2017-12-25 | One-key recovery default setting circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711421388.2A CN108011623A (en) | 2017-12-25 | 2017-12-25 | One-key recovery default setting circuit |
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| Publication Number | Publication Date |
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| CN108011623A true CN108011623A (en) | 2018-05-08 |
Family
ID=62061177
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711421388.2A Pending CN108011623A (en) | 2017-12-25 | 2017-12-25 | One-key recovery default setting circuit |
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| CN (1) | CN108011623A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111949105A (en) * | 2020-07-27 | 2020-11-17 | 美唐科技(江苏)有限公司 | System starting circuit of handheld terminal based on high-voltage battery power supply |
| CN112579348A (en) * | 2019-09-29 | 2021-03-30 | 北京君正集成电路股份有限公司 | Method for restoring factory settings by counting system starting times |
| CN112579346A (en) * | 2019-09-29 | 2021-03-30 | 北京君正集成电路股份有限公司 | Method for restoring factory settings through power failure |
| CN114665791A (en) * | 2022-03-11 | 2022-06-24 | 成都飞机工业（集团）有限责任公司 | Direct current motor forward and reverse rotation delay protection circuit |
| CN114661127A (en) * | 2022-05-24 | 2022-06-24 | 武汉凌久微电子有限公司 | Reset circuit, reset method and chip |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112579348A (en) * | 2019-09-29 | 2021-03-30 | 北京君正集成电路股份有限公司 | Method for restoring factory settings by counting system starting times |
| CN112579346A (en) * | 2019-09-29 | 2021-03-30 | 北京君正集成电路股份有限公司 | Method for restoring factory settings through power failure |
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| CN114665791A (en) * | 2022-03-11 | 2022-06-24 | 成都飞机工业（集团）有限责任公司 | Direct current motor forward and reverse rotation delay protection circuit |
| CN114661127A (en) * | 2022-05-24 | 2022-06-24 | 武汉凌久微电子有限公司 | Reset circuit, reset method and chip |
| CN114661127B (en) * | 2022-05-24 | 2022-09-06 | 武汉凌久微电子有限公司 | Reset circuit, reset method and chip |
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