CN108827372A - A kind of electronic cigarette state detection circuit, detection method and electronic cigarette - Google Patents
A kind of electronic cigarette state detection circuit, detection method and electronic cigarette Download PDFInfo
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- CN108827372A CN108827372A CN201810234722.1A CN201810234722A CN108827372A CN 108827372 A CN108827372 A CN 108827372A CN 201810234722 A CN201810234722 A CN 201810234722A CN 108827372 A CN108827372 A CN 108827372A
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Abstract
The present invention relates to a kind of electronic cigarette state detection circuit, detection method and electronic cigarettes.This method includes S10：The time division multiplexing of processor detects the received level of Port detecting；S20：If time division multiplexing detection port detects low level, control switch is connected；S30：Start voltage detection unit and carry out electric power detection, and shows electric power detection result；S40：Processor has detected whether smoking action signal；S50：If detecting smoking action signal, it is time-multiplexed and detects the working condition of Port detecting electronic cigarette, and feed back to user；S60：If time division multiplexing detection port detects high level, control switch is disconnected, and be back to step S10, time division multiplexing test side mouthful restarts to detect received level.By applying the present invention, only needing a time division multiplexing detection port that the detection of electronic cigarette electricity and working condition can be realized, I/O port consumption is reduced, to reduce electronic cigarette volume, reduces cost.
Description
Technical field
The present invention relates to electronic cigarette field, more specifically to a kind of electronic cigarette state detection circuit, detection method and
Electronic cigarette.
Background technique
Electronic cigarette also known as virtual cigarette, electronic atomizer.Electronic cigarette is chiefly used in giving up smoking as cigarette substitute articles.Electronics
Smoking set has appearance similar with cigarette and taste, but is generally free of other harmful components such as tar, suspended particulates in cigarette.Electricity
Sub- cigarette is mainly made of atomizer (microphone/cigarette holder/smoke grenade) and power supply module.But with the development of electronic cigarette, electronic cigarette it is outer
Shape is more and more diversified, in order to meet the requirement of various shapes, needs to reduce the area of electronic cigarette circuit board.
Present electronic cigarette is usually the charge value and working condition that electronic cigarette is obtained by key press, but small-sized
For electronic cigarette but without more space layout keys, button, which is arranged, will increase the volume and weight of electronic cigarette, also influence beautiful.
Summary of the invention
The technical problem to be solved in the present invention is that the charge value and working condition of the above-mentioned electronic cigarette for the prior art
Detection needs the defect of key, provides a kind of electronic cigarette state detection circuit, detection method and electronic cigarette.
The technical solution adopted by the present invention to solve the technical problems is：A kind of electronic cigarette state detection circuit is constructed, is wrapped
Electronic cigarette battery is included, further includes processor, pull-up resistor, control switch, smoke grenade interface, voltage detecting circuit, the processor
Upper includes that a time division multiplexing detects port；The time division multiplexing detection port connects electronic cigarette electricity by the pull-up resistor
Pond, the time division multiplexing detection port connect the cathode of electronic cigarette battery, smoke grenade interface one end by the smoke grenade interface
Ground connection；The time division multiplexing detection port connects the anode of electronic cigarette battery, the processor connection by the control switch
The voltage detecting circuit；
Time division multiplexing detection port detects low level after smoke grenade is inserted into the smoke grenade interface, by the time division multiplexing
Detection port is configured to analog-to-digital conversion input pattern, and control switch is connected, and starts the voltage detection unit and carries out electric power detection
And show electric power detection result；
After smoke grenade insertion, when the processor detects smoking action signal, time division multiplexing detection port is matched
It is set to non-analog-to-digital conversion input pattern, the working condition of the time division multiplexing detection Port detecting electronic cigarette, and feeds back to user；
Time division multiplexing detection port detects high level after smoke grenade extracts the smoke grenade interface, disconnects the control and opens
It closes, time division multiplexing detection port has detected whether smoke grenade insertion.
Preferably, electronic cigarette state detection circuit of the present invention further includes being connected to the processor, for detecting
The gas flow transducer for whether having smoking to act, the smoking action signal is generated when having detected that air-flow passes through；Or
The resistance detecting circuit for being connected to the processor, whether having smoking to act for detecting user passes through detection electricity
Change in resistance generates the smoking action signal；Or
It is connected to the processor, for detecting whether the capacitive detection circuit for having smoking to act, passes through detection capacitance
Variation generates the smoking action signal.
Preferably, electronic cigarette state detection circuit of the present invention further includes the electric power detection for will test
As a result the feedback module of user is fed back to working condition；The feedback module is in indicator light, audio player or display screen
At least one；
The working condition of the electronic cigarette includes at least one of short-circuit condition, over-current state, open-circuit condition.
In addition, the method is applied to above-mentioned electronic cigarette state the present invention also provides a kind of electronic cigarette condition detection method
Detection circuit includes the following steps：
S10：The time division multiplexing of processor detects the received level of Port detecting；
S20：If time division multiplexing detection port detects low level, control switch is connected；
S30：Start voltage detection unit and carry out electric power detection, and shows electric power detection result；
S40：The processor has detected whether smoking action signal；
S50：If detecting the smoking action signal, the work shape of the time division multiplexing detection Port detecting electronic cigarette
State, and feed back to user.
Preferably, electronic cigarette condition detection method of the present invention, the step S20 include：
S201：If time division multiplexing detection port detects low level, configure time division multiplexing detection port to
Control switch is connected in analog-to-digital conversion input pattern.
Preferably, electronic cigarette condition detection method of the present invention, the step S40 include：
S401：Air-flow variation, which is detected, by gas flow transducer judges whether there is smoking action signal；Or
S402：Smoking action signal is judged whether there is by detection resistance value variation or capacitance variation.
Preferably, electronic cigarette condition detection method of the present invention, the step S50 include：
S501：If detecting the smoking action signal, non-modulus is configured by time division multiplexing detection port and is turned
Input pattern is changed, while being linked into analog-digital converter, detects the working condition of electronic cigarette；
The working condition includes at least one of short-circuit condition, over-current state, open-circuit condition.
Preferably, electronic cigarette condition detection method of the present invention further includes after the step S50：
S60：If time division multiplexing detection port detects high level, the control switch is disconnected, and is back to described
Step S10, the time division multiplexing test side mouthful restart to detect received level.
Preferably, electronic cigarette condition detection method of the present invention shows that testing result includes logical in the step S30
It crosses indicator lamp quantity or indicator light colors or display screen shows testing result；And/or
It includes being fed back to by indicator lamp quantity or indicator light colors or display screen that user is fed back in the step S50
User.
In addition, the present invention also provides a kind of electronic cigarette, including above-mentioned electronic cigarette state detection circuit.
Implement a kind of electronic cigarette state detection circuit, detection method and electronic cigarette of the invention, has the advantages that：
This method includes S10：The time division multiplexing of processor detects the received level of Port detecting；S20：If time division multiplexing detection port inspection
Low level is measured, then control switch is connected；S30：Start voltage detection unit and carry out electric power detection, and shows electric power detection knot
Fruit；S40：Processor has detected whether smoking action signal；S50：If detecting smoking action signal, be time-multiplexed test side
The working condition of mouth detection electronic cigarette, and feed back to user；S60：If time division multiplexing detection port detects high level, control is disconnected
System switch, and it is back to step S10, time division multiplexing test side mouthful restarts to detect received level.By applying the present invention,
It only needs a time division multiplexing detection port that the detection of electronic cigarette electricity and working condition can be realized, reduces I/O port consumption, thus
Electronic cigarette volume is reduced, cost is reduced.
Detailed description of the invention
Present invention will be further explained below with reference to the attached drawings and examples, in attached drawing：
Fig. 1 is a kind of voltage detecting circuit figure of electronic cigarette state detection circuit of the present invention；
Fig. 2 is a kind of Working state checking circuit figure of electronic cigarette state detection circuit of the present invention.
Fig. 3 is a kind of electronic cigarette condition detection method flow chart of first embodiment of the present invention；
Fig. 4 is a kind of electronic cigarette condition detection method flow chart of the second embodiment of the present invention.
Specific embodiment
For a clearer understanding of the technical characteristics, objects and effects of the present invention, now control attached drawing is described in detail
A specific embodiment of the invention.
With reference to Fig. 1 and Fig. 2, electronic cigarette state detection circuit is applied to electronic cigarette, which includes for being electronic cigarette
The battery of power supply.Electronic cigarette state detection circuit includes processor (MCU), pull-up resistor, control switch, smoke grenade interface, voltage
Detection circuit includes that a time division multiplexing detects port (INPUT IO) on processor, and time division multiplexing detection port is in electronics
The different working stage of cigarette carries out different detection work, completes multitask detection by time division multiplexing.Further, in electronic cigarette
When stopping working, setting time division multiplexing detection port is that smoke grenade plugs detection function, when user plugs smoke grenade, can be exported in time
Prompt information；In electronic cigarette work, setting time division multiplexing detection port is real-time detection task, can carry out short-circuit condition inspection
Survey, over-current state detection, open-circuit condition detection etc..
To realize that above-mentioned time division multiplexing completes multitask detection, processor further includes time division multiple management and running kernel,
It can be selected to execute different tasks according to switching signal, switching signal is high level, low level or smoking action signal etc., place
Manage the corresponding relationship of device internal preset task and switching signal.Time division multiplexing detection port connects electronic cigarette electricity by pull-up resistor
The resistance value in pond, pull-up resistor can be set as needed.Time division multiplexing detection port connects electronic cigarette battery by smoke grenade interface
Cathode, smoke grenade interface one end ground connection.Time division multiplexing detection port connects the anode of electronic cigarette battery, processor by control switch
Voltage detecting circuit is connected, the signal realization that control switch is issued according to processor is switched on or switched off.
Smoke grenade is equivalent to corresponding resistance access circuit after smoke grenade insertion for connecting smoke grenade by smoke grenade interface.Work as smoke grenade
After being inserted into smoke grenade interface, time division multiplexing detection port detects low level, configures modulus for time division multiplexing detection port at this time
Input mode conversion, is connected control switch, and starting voltage detection unit carries out electric power detection and shows electric power detection result.
After smoke grenade is inserted into smoke grenade interface, when processor detects smoking action signal, time division multiplexing detection port is matched
It is set to non-analog-to-digital conversion input pattern, while being linked into analog-digital converter (Analog-to-Digital Converter, ADC),
The working condition of time division multiplexing detection Port detecting electronic cigarette, and feed back to user.Preferably, the working condition of electronic cigarette includes
At least one of short-circuit condition, over-current state, open-circuit condition.
Further, the present invention can detect whether user has smoking movement by following three kinds of modes, if detecting, smoking is dynamic
Make signal, then illustrates that user is smoking.
First detection mode, electronic cigarette state detection circuit of the invention further include connecting with processor, being for detecting
It is no have smoking act gas flow transducer, detected air-flow by when generate smoking action signal.
Second detection mode, electronic cigarette state detection circuit of the invention further include connecting with processor, using for detecting
The resistance detecting circuit whether family has smoking to act is changed by detection resistance value and generates smoking action signal.
Third detection mode, electronic cigarette state detection circuit of the invention further include connecting with processor, being for detecting
The no capacitive detection circuit for having smoking to act generates smoking action signal by detection capacitance variation.
Further, electronic cigarette state detection circuit of the invention further include electric power detection result for will test and
Working condition feeds back to the feedback module of user.Feedback module can be selected in indicator light, audio player or display screen at least
It is a kind of.For example, feeding back to user by indicator lamp quantity or indicator light colors, audio player or display screen.
When user terminates to smoke or replace smoke grenade, time division multiplexing detection port detects high electricity after smoke grenade extracts smoke grenade interface
It is flat, control switch is disconnected, time division multiplexing detection port has detected whether smoke grenade insertion.
To sum up, electronic cigarette state detection circuit of the invention is completed based on single I/O port, and processor includes the time-division
Multitask-scheduling kernel, I/O port carry out different detection work in the different working stage of electronic cigarette, multiple by the time-division
It is detected with multitask is completed.
Fig. 3 is a kind of electronic cigarette condition detection method flow chart of first embodiment of the present invention.
Specifically, being applied to above-mentioned electronic cigarette state-detection electricity the present invention also provides a kind of electronic cigarette condition detection method
Road includes the following steps：
S10：The time division multiplexing of processor detects the received level of Port detecting.Electronic cigarette in that stop working state, is located
The time division multiplexing detection port of reason device is in smoke grenade detecting state, for detecting whether there is smoke grenade insertion.It is being not inserted into smoke grenade
When, input port level is high level；When there is insertion smoke grenade, input port level can become low level, and processor is connect by detection
The level change of receipts determines whether smoke grenade insertion.
S20：If time division multiplexing detection port detects low level, that is, there is smoke grenade insertion, then control switch is connected.It is preferred that
Ground, electronic cigarette condition detection method of the invention, step S20 include：
S201：If time division multiplexing detection port detects low level, analog-to-digital conversion is configured by time division multiplexing detection port
Control switch is connected in input pattern.When electronic cigarette is when standby, the detection port that will be time-multiplexed is configured to pull-up input pattern；
When smoke grenade access, time division multiplexing detection port will detect low level, otherwise detect high level.
S30：Start voltage detection unit and carry out electric power detection, and shows electric power detection result.Further, electricity of the invention
In sub- cigarette condition detection method, show that testing result includes by indicator lamp quantity or indicator light colors or display in step S30
Screen display testing result.Such as different electricity are indicated by the different colours of LED light, or shown by small display.
S40：Processor has detected whether smoking action signal.Preferably, electronic cigarette condition detection method of the invention, step
Suddenly S40 includes：
S401：Air-flow variation is detected by gas flow transducer and judges whether there is smoking action signal, when gas flow transducer is examined
When the air flow value of survey is greater than default air flow value, judgement has smoking action signal.Or
S402：Smoking action signal is judged whether there is by detection resistance value variation or capacitance variation.It will test
Resistance value is compared with predetermined resistance value, judges whether user has smoking movement；Or the capacitance that will test and default electricity
Capacitance is compared, and judges whether user has smoking movement.It is appreciated that predetermined resistance value and predetermined capacitance need to pass through reality
It tests and obtains in advance, the table of comparisons of predetermined resistance value and smoking state is stored in the memory of electronic cigarette.
S50：If detecting smoking action signal, it is time-multiplexed and detects the working condition of Port detecting electronic cigarette, and is anti-
It is fed to user.
Alternatively, electronic cigarette condition detection method of the invention, step S50 include：
S501：If detecting smoking action signal, non-analog-to-digital conversion is configured by time division multiplexing detection port and inputs mould
Formula, while it being linked into analog-digital converter (Analog-to-Digital Converter, ADC), detect the work shape of electronic cigarette
State.Working condition includes at least one of short-circuit condition, over-current state, open-circuit condition.
Alternatively, in electronic cigarette condition detection method of the invention, it includes passing through instruction that user is fed back in step S50
Lamp quantity or indicator light colors or display screen feed back to user.Such as different electricity are indicated by the different colours of LED light,
Or it is shown by small display.
Fig. 4 is a kind of electronic cigarette condition detection method flow chart of the second embodiment of the present invention.
Difference with first embodiment is that the electronic cigarette condition detection method of the present embodiment also wraps after step S50
It includes：
S60：If time division multiplexing detection port detects high level, control switch is disconnected, and be back to step S10, time-division
Restart to detect received level in multiplexing test side mouthful.
In addition, the present invention also provides a kind of electronic cigarette, including above-mentioned electronic cigarette state detection circuit.
By applying the present invention, only needing a time division multiplexing detection port that electronic cigarette electricity and working condition can be realized
Detection reduces I/O port consumption, and does not need setting physical button, need to only be inserted into smoke grenade.It reduces, can make because I/O port consumes
With the processor of more small package, to reduce electronic cigarette volume；And the processor relative low price of small package, it can reduce into
This.
Above embodiments only technical concepts and features to illustrate the invention, its object is to allow person skilled in the art
Scholar can understand the contents of the present invention and implement accordingly, can not limit the scope of the invention.It is all to be wanted with right of the present invention
The equivalent changes and modifications that range is done are sought, should belong to the covering scope of the claims in the present invention.
Claims (10)
1. a kind of electronic cigarette state detection circuit, including electronic cigarette battery, which is characterized in that further include processor, pull-up resistor,
Control switch, smoke grenade interface, voltage detecting circuit include a time division multiplexing detection port on the processor；The time-division
Multiplexing detection port connects electronic cigarette battery by the pull-up resistor, and time division multiplexing detection port is connect by the smoke grenade
The cathode of mouth connection electronic cigarette battery, smoke grenade interface one end ground connection；Time division multiplexing detection port passes through the control
The anode of switch connection electronic cigarette battery, the processor connect the voltage detecting circuit；
Time division multiplexing detection port detects low level after smoke grenade is inserted into the smoke grenade interface, and the time division multiplexing is detected
Port is configured to analog-to-digital conversion input pattern, and control switch is connected, and starts the voltage detection unit and carries out electric power detection and show
Show electric power detection result；
After smoke grenade insertion, when the processor detects smoking action signal, time division multiplexing detection port is configured to non-
Analog-to-digital conversion input pattern, the working condition of the time division multiplexing detection Port detecting electronic cigarette, and feed back to user；
Time division multiplexing detection port detects high level after smoke grenade extracts the smoke grenade interface, disconnects the control switch,
Time division multiplexing detection port has detected whether smoke grenade insertion.
2. electronic cigarette state detection circuit according to claim 1, which is characterized in that further include connecting with the processor
It connects, for detecting whether the gas flow transducer for having smoking to act, the smoking movement letter is generated when having detected that air-flow passes through
Number；Or
The resistance detecting circuit for being connected to the processor, whether having smoking to act for detecting user, passes through detection resistance value
Variation generates the smoking action signal；Or
It is connected to the processor, for detecting whether the capacitive detection circuit for having smoking to act, passes through detection capacitance variation
Generate the smoking action signal.
3. electronic cigarette state detection circuit according to claim 1, which is characterized in that further include for will test
Electric power detection result and working condition feed back to the feedback module of user；The feedback module be indicator light, audio player or
At least one of display screen；
The working condition of the electronic cigarette includes at least one of short-circuit condition, over-current state, open-circuit condition.
4. a kind of electronic cigarette condition detection method, which is characterized in that the method is applied to described in any one of claims 1 to 3
Electronic cigarette state detection circuit, include the following steps：
S10：The time division multiplexing of processor detects the received level of Port detecting；
S20：If time division multiplexing detection port detects low level, control switch is connected；
S30：Start voltage detection unit and carry out electric power detection, and shows electric power detection result；
S40：The processor has detected whether smoking action signal；
S50：If detecting the smoking action signal, the working condition of the time division multiplexing detection Port detecting electronic cigarette,
And feed back to user.
5. electronic cigarette condition detection method according to claim 4, which is characterized in that the step S20 includes：
S201：If time division multiplexing detection port detects low level, modulus is configured by time division multiplexing detection port
Control switch is connected in input mode conversion.
6. electronic cigarette condition detection method according to claim 4, which is characterized in that the step S40 includes：
S401：Air-flow variation, which is detected, by gas flow transducer judges whether there is smoking action signal；Or
S402：Smoking action signal is judged whether there is by detection resistance value variation or capacitance variation.
7. electronic cigarette condition detection method according to claim 4, which is characterized in that the step S50 includes：
S501：If detecting the smoking action signal, it is defeated that non-analog-to-digital conversion is configured by time division multiplexing detection port
Enter mode, while being linked into analog-digital converter, detects the working condition of electronic cigarette；
The working condition includes at least one of short-circuit condition, over-current state, open-circuit condition.
8. electronic cigarette condition detection method according to claim 4, which is characterized in that also wrapped after the step S50
It includes：
S60：If time division multiplexing detection port detects high level, the control switch is disconnected, and be back to the step
S10, the time division multiplexing test side mouthful restart to detect received level.
9. electronic cigarette condition detection method according to claim 4, which is characterized in that show detection in the step S30
It as a result include showing testing result by indicator lamp quantity or indicator light colors or display screen；And/or
It includes feeding back to user by indicator lamp quantity or indicator light colors or display screen that user is fed back in the step S50.
10. a kind of electronic cigarette, which is characterized in that including the described in any item electronic cigarette state detection circuits of claims 1 to 3.
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| CN201810234722.1A CN108827372B (en) | 2018-03-21 | 2018-03-21 | Electronic cigarette state detection circuit, detection method and electronic cigarette |
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| CN201810234722.1A CN108827372B (en) | 2018-03-21 | 2018-03-21 | Electronic cigarette state detection circuit, detection method and electronic cigarette |
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| CN108827372B CN108827372B (en) | 2020-07-14 |
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