CN110531874A - A kind of active capacitance pen and its electricity-saving control method - Google Patents
A kind of active capacitance pen and its electricity-saving control method Download PDFInfo
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- CN110531874A CN110531874A CN201910716937.1A CN201910716937A CN110531874A CN 110531874 A CN110531874 A CN 110531874A CN 201910716937 A CN201910716937 A CN 201910716937A CN 110531874 A CN110531874 A CN 110531874A
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- capacitance pen
- circuit
- active capacitance
- control module
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- 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
- G06F1/26—Power supply means, e.g. regulation thereof
- G06F1/32—Means for saving power
- G06F1/3203—Power management, i.e. event-based initiation of a power-saving mode
- G06F1/3206—Monitoring of events, devices or parameters that trigger a change in power modality
- G06F1/3231—Monitoring the presence, absence or movement of users
-
- 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
- G06F1/26—Power supply means, e.g. regulation thereof
- G06F1/32—Means for saving power
- G06F1/3203—Power management, i.e. event-based initiation of a power-saving mode
- G06F1/3234—Power saving characterised by the action undertaken
- G06F1/3296—Power saving characterised by the action undertaken by lowering the supply or operating voltage
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
- G06F3/033—Pointing devices displaced or positioned by the user, e.g. mice, trackballs, pens or joysticks; Accessories therefor
- G06F3/0354—Pointing devices displaced or positioned by the user, e.g. mice, trackballs, pens or joysticks; Accessories therefor with detection of 2D relative movements between the device, or an operating part thereof, and a plane or surface, e.g. 2D mice, trackballs, pens or pucks
- G06F3/03545—Pens or stylus
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
- G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
- G06F3/044—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means
Abstract
The present invention provides a kind of active capacitance pen and its electricity-saving control methods, pressure sensor, dynamic pickup and control module are equipped in the active capacitance pen, the control module makes active capacitance pen circuit be in normal mode of operation, green model and sleep pattern according to the information of pressure sensor, dynamic pickup, when in the first setting time, the pressure signal value of the pressure sensor is less than setting pressure signal threshold value, and the signal value of dynamic pickup is greater than operating valve value, then enters green model；In the second setting time, the pressure signal value of the pressure sensor is less than setting pressure signal threshold value, and the signal value of dynamic pickup is less than operating valve value, then enters sleep pattern.Using technical solution of the present invention, the electricity-saving control method with actually suit, it is relatively reliable, and while power saving, do not influence the experience of user's writing, there is better experience sense.
Description
Technical field
The invention belongs to technical field of touch control more particularly to a kind of active capacitance pens and its electricity-saving control method.
Background technique
As technology develops, support the mobile phone of active capacitance pen, tablet computer more and more, people are to active capacitor
The power saving requirement of pen and user experience require higher and higher, it is desirable that the battery capacity of pen can use the time, and the longer the better, the use of pen
Family experience will be more preferable, reach for example pen take up can write and written handwriting precision the higher the better.
Currently, the prior art, which has using the movement of acceleration transducer Gensor or gyroscope, controls the work of active pen
, when active capacitance pen is detecting that XYZ or some angle change, just allow active pen to work, this method is certain
Solve the power problems of active pen in certain occasions, for example active capacitance pen is static is put on workbench, because active pen does not have
There is movement, so active pen is at sleep state, can achieve power saving.
But, this list can not achieve power saving in many practical applications by the way of Gsensor or gyroscope,
Sometimes maloperation is also resulted in, and pen is allowed to be constantly in working condition.Such as pen is placed on packet the inside by user, is walked about outside
When, it is detected by the way of through Gsensor or gyroscope, will detect that some position of XYZ is changed,
The case where to which pen will be allowed to be constantly in working condition, power saving cannot be played at all.Or user is when taking, not necessarily
It is write, he may take up rotation or object for appreciation, be especially used in education sector, children are most of all to take pen to play
Or rotation, such pen will work always, just not play province's electro ultrafiltration at all.So how to solve static and movement
When power problems do not influence the experience of user's writing again, the developer for becoming this field needs a technology difficulty solving
Topic.
Summary of the invention
Against the above technical problems, the invention discloses a kind of active capacitance pen and its electricity-saving control methods, so that saving
Electricity is more reliable, solves power problems when static and movement, and do not influence the experience of user's writing.
In this regard, the technical solution adopted by the present invention are as follows:
A kind of electricity-saving control method of active capacitance pen, the active capacitance pen is interior to be equipped with pressure sensor, dynamic sensitive
Device and control module, the control module make active capacitance pen electricity according to the information that pressure sensor, dynamic pickup are fed back
Road is in normal mode of operation, green model and sleep pattern, and different modes uses different control strategies；
In the first setting time, the pressure signal value of the pressure sensor is less than setting pressure signal threshold value, and dynamic
The signal value of sensor is greater than operating valve value, then enters green model；
In the second setting time, the pressure signal value of the pressure sensor is less than setting pressure signal threshold value, and dynamic
The signal value of sensor is less than operating valve value, then enters sleep pattern；
The pressure signal value of pressure sensor is greater than given threshold, is normal mode of operation；
Power dissipation ratio height in sleep pattern of the active capacitance pen in green model, the power consumption highest of normal mode of operation.
In current active capacitance pen industry, mainly with key switch machine either with the writing pressure sensitivity of pen core and position
Variation is set to judge the work and sleep pattern of active pen, and only operating mode and two kinds of sleep pattern, in this way for spy
Fixed occasion such as by pen be placed on packet in walk about outside when, existing mode is often judged by accident, so that pen is entered normal mode of operation,
Cause the waste of electricity.Led to using technical solution of the present invention by the investigation and analysis to the various occasions of active capacitance pen
The signal feedback for crossing combination pressure sensor, dynamic pickup etc., sets Three models, is solved by Intelligent Dynamic algorithm static
With power problems when movement, it both can solve dynamic power problems and do not influenced the experience of user's writing, and saved function
Consumption.
Further, control module, active capacitance pen circuit power consumption in different modes and output voltage are different,
By meeting which kind of mode belonged in stipulated time and pressure limit detection, the power consumption of control module is just allowed to become smaller and export electricity
Buckling is small, and such power consumption will decline.
Further, under operating mode, P=UI=1.5*1.2=1.8mW；
Under green model: shallowly sleeping, P=UI=1.5*0.04=0.060mW；
Under sleep pattern: sound sleep, P=UI=1.5*0.02=0.030mW.
Wherein, the first setting time is greater than the second setting time.
As a further improvement of the present invention, the active capacitance pen is equipped with switching key, the switching key and control
The connection of molding block, the control module make active capacitance pen circuit carry out pattern switching according to switching key signal；When actively
When formula capacitance pen is normal mode of operation, switching key is pressed, into green model；When active capacitance pen be sleep pattern or
When green model, switching key is pressed, into normal mode of operation.It adopts this technical solution, passes through switching key, control module
The circuit of active pen can be quickly controlled, implementation pattern is switched fast.
As a further improvement of the present invention, signal value of the pressure signal threshold value pressing force snesor after amplifier
For 20ADC-30ADC.Comprehensively consider market big data, lot of experimental data, user use active pen use habit, it is found that
The ADC value for the power variation that general active pen is subject to is within the scope of 20-30, and certain time, and it is to transport which, which holds pen,
It is dynamic, rather than writing, when pressure change signal is less than 20ADC-30ADC, control module enters sleep for capacitance pen is controlled
Mode or green model.It, can not normal book when signal value of the pressure sensor after amplifier is less than 20ADC-30ADC
It writes.
As a further improvement of the present invention, first setting time is not less than 2-4min.Further, described
One setting time is 3min.
As a further improvement of the present invention, second setting time is not less than 30s.
During exercise, pen core by great pressure and continue the time how long be just judged as YES user writing rather than
User holds pen and is moving,
As a further improvement of the present invention, when active capacitance pen is sleep pattern, the control module receives dynamic
The signal of sensor is greater than operating valve value, then the control module makes active capacitance pen circuit enter normal mode of operation；
When active capacitance pen is green model, the control module receives dynamic pickup in third setting time
Signal is less than operating valve value, then the control module makes active capacitance pen circuit enter sleep pattern.
As a further improvement of the present invention, third setting time is less than the first setting time, and when being greater than the second setting
Between.Further, the third setting time is not less than 1min.
The invention also discloses a kind of active capacitance pens, it is characterised in that: it includes power supply, booster circuit, control mould
Block, pressure sensor, dynamic pickup, amplifying circuit, TX booster circuit and written circuit, the power supply, dynamic pickup, pressure
Force snesor, TX booster circuit are electrically connected with control module respectively, the pressure sensor, TX booster circuit and written circuit electricity
Connection；It is automatically controlled that the control module uses the electricity-saving control method of active capacitance pen described in any one as above to carry out province
System.
Further, the dynamic pickup is acceleration transducer, gyroscope or gravity sensor.
As a further improvement of the present invention, the pressure sensor is electrically connected by amplifying circuit with control module.
As a further improvement of the present invention, the active capacitance pen includes switching key；
When power supply is not rechargable power supplies, the power supply is electrically connected by booster circuit with control module, the switching key
It is electrically connected with control module；
When power supply is rechargeable, the power supply is electrically connected by charging circuit with reduction voltage circuit, the reduction voltage circuit and control
The electrical connection of molding block, the switching key are electrically connected with reduction voltage circuit.
Compared with prior art, the invention has the benefit that
Using technical solution of the present invention, solve pen is made pen work in other environment by external interference, for example we will
Pen is placed on knapsack or our body, when we can bring the thing shaken inside either knapsack during walking
Contradicting to pen tip allows pen to wake up work, solves in transport with the shaking in walking process and when producing packaging or carrying knapsack
The chaff interferent top of appearance to notes cause that active capacitance pen works and the problem of cause power consumption；The electricity-saving control method and reality
Suit, it is relatively reliable, and while power saving, the experience of user's writing is not influenced, and there is better experience sense.
Detailed description of the invention
Fig. 1 is a kind of Three models conversion figure of the electricity-saving control method of active capacitance pen of the present invention.
Fig. 2 is a kind of circuit block diagram of active capacitance pen of the embodiment of the present invention 2.
Fig. 3 is a kind of circuit block diagram of active capacitance pen of the embodiment of the present invention 3.
Fig. 4 is a kind of circuit block diagram of active capacitance pen of the embodiment of the present invention 4.
Fig. 5 is a kind of circuit block diagram of active capacitance pen of the embodiment of the present invention 5.
Specific embodiment
Preferably embodiment of the invention is described in further detail below.
Embodiment 1
A kind of electricity-saving control method of active capacitance pen, the active capacitance pen is interior to be equipped with pressure sensor, acceleration biography
Sensor and control module, the active capacitance pen are additionally provided with switching key, and the control module is according to pressure sensor, acceleration
The information that degree sensor, switching key are fed back makes active capacitance pen circuit be in normal mode of operation, green model and sleep
Mode, different modes use different control strategies；
In the first setting time, the pressure signal value of the pressure sensor is less than setting pressure signal threshold value, and accelerates
The signal value for spending sensor is greater than operating valve value, then enters green model；
In the second setting time, the pressure signal value of the pressure sensor is less than setting pressure signal threshold value, and accelerates
The signal value for spending sensor is less than operating valve value, then enters sleep pattern；
The pressure signal value of pressure sensor is greater than given threshold, is normal mode of operation；
Power dissipation ratio height in sleep pattern of the active capacitance pen in green model, the power consumption highest of normal mode of operation.
Wherein, the first setting time is greater than the second setting time.
Signal value of the pressure signal threshold value pressing force snesor after amplifier is 20ADC-30ADC.Described first
Setting time is not less than 2-4min.Further, first setting time is 3min.Second setting time is not small
In 30s.
When active capacitance pen is normal mode of operation, switching key is pressed, into green model；When active capacitor
When pen is sleep pattern or green model, switching key is pressed, into normal mode of operation.
When active capacitance pen is green model, the control module receives acceleration biography in third setting time
The signal of sensor is less than operating valve value, then the control module makes active capacitance pen circuit enter sleep pattern.When active
When capacitance pen is sleep pattern, the signal that the control module receives acceleration transducer is greater than operating valve value, the then control
Molding block makes active capacitance pen circuit enter normal mode of operation.Wherein, third setting time is less than the first setting time, and
Greater than the second setting time.Further, the third setting time is not less than 1min.
The mutual transition diagram of Three models is as shown in Figure 1:
C1: normal mode of operation to sleep mode
Trigger condition: such as the variation of signal no pressure or pressure of the pressure sensor that in 30s, control module is received in some cycles
The signal of sensor, which is less than 20ADC ~ 30ADC(numerical value, can be set as needed) 30s, no switching key signal, acceleration
Sensor shake is less than operating valve value and no pressure, then pen is in static condition, and control module control active circuit, which enters, sleeps
Sleep mode.
C2: sleep pattern to normal mode of operation
Trigger condition: control module has received switching key signal or acceleration transducer shake is greater than operating valve value, control
Actively a circuit enters normal mode of operation for module control.
C3: normal mode of operation to green model
Trigger condition: the signal no pressure variation for the pressure sensor that control module receives or the signal of pressure sensor are less than
20ADC ~ 30ADC, and continuously there is the signal of acceleration transducer to be greater than operating valve value 3 minutes, or have switching key signal, then it controls
Actively a circuit enters green model to the control of molding block.
C4: green model to sleep pattern
Trigger condition: the signal no pressure variation for the pressure sensor that control module receives or the signal of pressure sensor are less than
20ADC ~ 30ADC, and continuously there is the signal of acceleration transducer to be less than operating valve value 1 minute, i.e. attonity 1 minute, then it controls
Actively a circuit enters sleep pattern for module control.
C5: green model to normal mode of operation
Trigger condition: the signal no pressure variation for the pressure sensor that control module receives or the signal of pressure sensor are greater than
20ADC ~ 30ADC, or have switching key signal, then actively a circuit enters normal mode of operation for control module control.
The pressure signal threshold value of pressure sensor such as selection herein less than 20 ADC values, just will appear erroneous judgement, allow active pen
Originally stamp signal should not be exported, and produces stamp signal, the power consumption that will lead to pen is bigger.
In the present embodiment, using 10-15g as a threshold value range, corresponding ADC value is active capacitance pen
20ADC-30ADC value not thinks to work less than 20ADC value.As will lead to user's book by 30ADC value is greater than as threshold value
It writes out big some power of needs to go to write, so that experience sense is bad.
By the control method of this embodiment, the service time of battery of active pen can be made longer, reduces unnecessary electricity
Amount waste solves dynamic power problems and does not influence the experience of user's writing, has better experience sense.
Embodiment 2
As shown in Fig. 2, a kind of active capacitance pen comprising power supply, control module, RX pressure sensor, accelerates booster circuit
Spending sensor, amplifying circuit, TX booster circuit and written circuit, the power supply is rechargable power supplies, and the power supply passes through charging
Circuit is electrically connected with reduction voltage circuit, and the reduction voltage circuit is electrically connected with control module, and switching key is electrically connected with reduction voltage circuit.Institute
Acceleration transducer, RX pressure sensor, TX booster circuit is stated to be electrically connected with control module respectively, the RX pressure sensor,
TX booster circuit is electrically connected with written circuit.The control module is MCU.The pressure sensor is capacitive pressure sensing
Device.The control module carries out power-saving control using the electricity-saving control method of active capacitance pen described in embodiment 1.MCU,TX
Booster circuit power consumption in different modes and output voltage are different, by stipulated time and pressure limit detection, confirmation
Which kind of mode just allows the power consumption of MCU to become smaller and becomes smaller with output voltage, and such power consumption will decline.Further, operating mode
Under, P=UI=1.5*1.2=1.8mW.Under green model: shallowly sleeping, P=UI=1.5*0.04=0.060mW.Under sleep pattern: sound sleep, P
=UI=1.5*0.02=0.030mW。
When taking up one's pen or pressing switching key, active pen starts to work normally, and MCU starts to detect the ADC of pressure sensor
Value, when pressure sensor ADC value be less than setting value, and duration be 3 minutes, that active pen enters green mould
Formula；When pressure value that pressure sensor ADC value continues 1 minute again is constant or the direction XYZ of acceleration transducer does not have position change
Change, then active pen enters sleep pattern.
Specifically, power supply uses lithium battery or super capacitor, lithium battery or super capacitor through overcharge circuit into charging,
It is depressured when reaching burning voltage after charging using reduction voltage circuit, reduction voltage circuit can switch electricity using integrated DC-DC
Road uses LDO, and output 2V or 2.2V voltage is given to MCU control circuit and works；MCU receives RX circuit capacitance formula pressure biography
Sensor generate ADC value, the XYZ value of acceleration transducer, switching key interrupt variation come make pen be in deep sleep, sleep,
Work different mode；When the XYZ value of acceleration transducer changes (signal value of acceleration transducer is greater than operating valve value) or
There is switching key interrupt signal to be given to MCU control circuit by communication interface, MCU control circuit just allows the output of TX booster circuit to be beaten
Code signal is given to written circuit, is transferred to touch screen TP.
When the signal value of capacitance pressure transducer, is less than 20 ADC value, and pen is continuously acted and is had reached 3 minutes
I.e. the signal value of acceleration transducer is greater than operating valve value, and it is green model that active capacitance pen, which enters shallow sleep,.Etc. pressure
The signal value of sensor is also less than 20 ADC values, and acceleration transducer continuously reaches 1 minute without movement, i.e. acceleration passes
The signal value of sensor is less than operating valve value and reaches 1 minute, then carries out deep sleep i.e. sleep pattern.
Embodiment 3
As shown in figure 3, a kind of active capacitance pen comprising power supply, control module, RX pressure sensor, accelerates booster circuit
Spending sensor, amplifying circuit, TX booster circuit and written circuit, the power supply is rechargable power supplies, and the power supply passes through charging
Circuit is electrically connected with reduction voltage circuit, and the reduction voltage circuit is electrically connected with control module, and switching key is electrically connected with reduction voltage circuit.Institute
State acceleration transducer, TX booster circuit is electrically connected with control module respectively, the RX pressure sensor by amplifying circuit with
Control module electrical connection, the RX pressure sensor, TX booster circuit are electrically connected with written circuit.The control module is MCU.
The pressure sensor is resistive pressure sensor.The control module is using active capacitance pen described in embodiment 1
Electricity-saving control method carries out power-saving control.
Specifically, power supply uses lithium battery or super capacitor, lithium battery or super capacitor through overcharge circuit into charging,
It is depressured when reaching burning voltage after charging using reduction voltage circuit, reduction voltage circuit can switch electricity using integrated DC-DC
Road uses LDO, and output 2V or 2.2V voltage is given to MCU control circuit and works, pen core stress cause pressure sensor by
Power deformation, the difference output so as to cause pressure sensor both ends is variant, and difference value is after amplifying circuit amplifies, output
ADC value is given to MCU；XYZ value, switching key signal and the ADC value of MCU combination acceleration transducer Gensor changes to make
Pen is in deep sleep, sleep, work different mode, when the XYZ value of acceleration transducer changes i.e. acceleration transducer
Signal value is greater than operating valve value or has switching key signal to be given to MCU control circuit by communication interface, and MCU control circuit is just
It allows TX booster circuit output stamp signal to be given to written circuit, is transferred to touch screen TP.
When signal value of the pressure sensor after amplifier is less than 30 ADC value, and pen continuously acts and has reached 3
Minute, i.e., the signal value of acceleration transducer is greater than operating valve value and continuously reaches 3 minutes, and active capacitance pen enters shallow sleep and is
Green model.The signal value of equal pressure sensors is also less than 20 ADC values, and acceleration transducer is continuously without action signal
Reach 1 minute, i.e., the signal value of acceleration transducer is less than operating valve value and reaches 1 minute, then carries out deep sleep and sleep mould
Formula.
Embodiment 4
As shown in figure 4, a kind of active capacitance pen comprising power supply, control module, RX pressure sensor, accelerates booster circuit
Sensor, amplifying circuit, TX booster circuit and written circuit are spent, the power supply is disposable not rechargable power supplies, the power supply
It is connect by booster circuit with control module, switching key is electrically connected with control module；The acceleration transducer, RX pressure pass
Sensor, TX booster circuit are electrically connected with control module respectively, and the RX pressure sensor, TX booster circuit and written circuit are electrically connected
It connects.The control module is MCU.The pressure sensor is capacitance pressure transducer,.The control module uses embodiment 1
The electricity-saving control method of the active capacitance pen carries out power-saving control.
Specifically, power supply is powered using No. 7 or No. 9 dry cells in the present embodiment, output 1.5V is given to boosting
Circuit, booster circuit can be using integrated DC-DC switching circuit, or using the booster circuit of L+MOS pipe, exports 2V or 2.2V
Voltage is given to MCU control circuit and works.ADC value of the MCU according to the RX pressure sensor received, acceleration transducer
Deep sleep, sleep, work different mode be in pen for the XYZ value of Gensor, switching key signal intensity.When acceleration passes
The signal value that the XYZ value of sensor Gensor changes i.e. acceleration transducer is greater than operating valve value or has switching key signal logical
It crosses communication interface and is given to MCU control circuit, MCU control circuit just allows TX booster circuit output stamp signal to be given to written circuit,
It is transferred to touch screen TP.
When the signal value of capacitance pressure transducer, is less than 20 ADC value, and pen is continuously acted and is had reached 3 minutes
I.e. the signal value of acceleration transducer is greater than operating valve value, and it is green model that active capacitance pen, which enters shallow sleep,.Etc. pressure
The signal value of sensor is also less than 20 ADC values, and acceleration transducer continuously reaches 1 minute without movement, i.e. acceleration passes
The signal value of sensor is less than operating valve value and reaches 1 minute, then carries out deep sleep i.e. sleep pattern.
Embodiment 5
As shown in figure 5, a kind of active capacitance pen comprising power supply, control module, RX pressure sensor, accelerates booster circuit
Sensor, amplifying circuit, TX booster circuit and written circuit are spent, the power supply is disposable not rechargable power supplies, the power supply
It is connect by booster circuit with control module, switching key is electrically connected with control module；The acceleration transducer, TX boosting electricity
Road is electrically connected with control module respectively, and the RX pressure sensor is electrically connected by amplifying circuit with control module, the RX pressure
Force snesor, TX booster circuit are electrically connected with written circuit.The control module is MCU.The pressure sensor is resistance-type
Pressure sensor.It is automatically controlled that the control module uses the electricity-saving control method of active capacitance pen described in embodiment 1 to carry out province
System.
Specifically, power supply is powered using No. 7 or No. 9 dry cells in the present embodiment, output 1.5V is given to boosting
Circuit, booster circuit can be using integrated DC-DC switching circuit, or using the booster circuit of L+MOS pipe, exports 2V or 2.2V
Voltage is given to MCU control circuit and works.Pen core transmits pressure to pressure sensor, and MCU receives resistive pressure sensor
Output difference signal amplifies by amplifying circuit, and output ADC value is given to MCU.The XYZ of MCU combination acceleration transducer Gensor
Deep sleep, sleep, work different mode be in pen for value, switching key signal and the variation of ADC value.Work as acceleration transducer
XYZ value change the signal value of i.e. acceleration transducer and be greater than and operating valve value or there is switching key signal to pass through communication interface
It is given to MCU control circuit, MCU control circuit just allows TX booster circuit output stamp signal to be given to written circuit, is transferred to touch-control
Shield TP.
When signal value of the pressure sensor after amplifier is less than 20 ADC value, and pen continuously acts and has reached 3
Minute, i.e., the signal value of acceleration transducer is greater than operating valve value and continuously reaches 3 minutes, and active capacitance pen enters shallow sleep and is
Green model.The signal value of equal pressure sensors is also less than 20 ADC values, and acceleration transducer is continuously without action signal
Reach 1 minute, i.e., the signal value of acceleration transducer is less than operating valve value and reaches 1 minute, then carries out deep sleep and sleep mould
Formula.
The above content is a further detailed description of the present invention in conjunction with specific preferred embodiments, and it cannot be said that
Specific implementation of the invention is only limited to these instructions.For those of ordinary skill in the art to which the present invention belongs, In
Under the premise of not departing from present inventive concept, a number of simple deductions or replacements can also be made, all shall be regarded as belonging to of the invention
Protection scope.
Claims (10)
1. a kind of electricity-saving control method of active capacitance pen, it is characterised in that: be equipped with pressure in the active capacitance pen and pass
Sensor, dynamic pickup and control module, the control module make to lead according to the information that pressure sensor, dynamic pickup are fed back
Dynamic formula capacitance pen circuit is in normal mode of operation, green model and sleep pattern, and different modes uses different control plans
Slightly；
In the first setting time, the pressure signal value of the pressure sensor is less than setting pressure signal threshold value, and dynamic
The signal value of sensor is greater than operating valve value, then enters green model；
In the second setting time, the pressure signal value of the pressure sensor is less than setting pressure signal threshold value, and dynamic
The signal value of sensor is less than operating valve value, then enters sleep pattern；
The pressure signal value of pressure sensor is greater than given threshold, is normal mode of operation；
The active capacitance pen green model power dissipation ratio sleep pattern height.
2. the electricity-saving control method of active capacitance pen according to claim 1, it is characterised in that: the active capacitor
Pen is equipped with switching key, and the switching key is connect with control module, and the control module makes actively according to switching key signal
Formula capacitance pen circuit carries out pattern switching；When active capacitance pen is normal mode of operation, switching key is pressed, into green
Mode；When active capacitance pen is sleep pattern or green model, switching key is pressed, into normal mode of operation.
3. the electricity-saving control method of active capacitance pen according to claim 1, it is characterised in that: the pressure signal threshold
Signal value of the value pressing force snesor after amplifier is 20ADC-30ADC.
4. the electricity-saving control method of active capacitance pen according to claim 3, it is characterised in that: when the described first setting
Between for not less than 2-4min.
5. the electricity-saving control method of active capacitance pen according to claim 4, it is characterised in that: when the described second setting
Between for not less than 30s.
6. the electricity-saving control method of active capacitance pen according to claim 5, it is characterised in that:
When active capacitance pen is sleep pattern, the signal that the control module receives dynamic pickup is greater than operating valve
Value, then the control module makes active capacitance pen circuit enter normal mode of operation；
When active capacitance pen is green model, the control module receives dynamic pickup in third setting time
Signal is less than operating valve value, then the control module makes active capacitance pen circuit enter sleep pattern.
7. the electricity-saving control method of active capacitance pen according to claim 6, it is characterised in that: when the third is set
Between be not less than 1min.
8. a kind of active capacitance pen, it is characterised in that: it includes power supply, booster circuit, control module, pressure sensor, moves
State sensor, amplifying circuit, TX booster circuit and written circuit, the power supply, dynamic pickup, pressure sensor, TX boosting
Circuit is electrically connected with control module respectively, and the pressure sensor, TX booster circuit are electrically connected with written circuit；The control mould
Block carries out power-saving control using the electricity-saving control method of the active capacitance pen as described in claim 1 ~ 7 any one.
9. active capacitance pen according to claim 8, it is characterised in that: the pressure sensor by amplifying circuit with
Control module electrical connection.
10. active capacitance pen according to claim 9, it is characterised in that: the active capacitance pen includes that switching is pressed
Key；
When power supply is not rechargable power supplies, the power supply is electrically connected by booster circuit with control module, the switching key
It is electrically connected with control module；
When power supply is rechargeable, the power supply is electrically connected by charging circuit with reduction voltage circuit, the reduction voltage circuit and control
The electrical connection of molding block, the switching key are electrically connected with reduction voltage circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910716937.1A CN110531874A (en) | 2019-08-05 | 2019-08-05 | A kind of active capacitance pen and its electricity-saving control method |
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| CN112558797A (en) * | 2021-02-19 | 2021-03-26 | 深圳市千分一智能技术有限公司 | Active pen, control method and device thereof, and computer-readable storage medium |
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