CN209486744U - Low-power consumption fingerprint lock control circuit - Google Patents
Low-power consumption fingerprint lock control circuit Download PDFInfo
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- CN209486744U CN209486744U CN201920383196.5U CN201920383196U CN209486744U CN 209486744 U CN209486744 U CN 209486744U CN 201920383196 U CN201920383196 U CN 201920383196U CN 209486744 U CN209486744 U CN 209486744U
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Abstract
The utility model discloses a kind of low-power consumption fingerprint lock control circuits, comprising: touch-control circuit, for judging whether there is external touch signal；Finger print information for receiving finger print information, and can be stored or be deleted, while be identified to fingerprint, and fingerprint identification information is exported to driving circuit by governor circuit；Driving circuit, for receiving fingerprint identification information, and according to the opening and closing of fingerprint identification information driving lock；Power circuit, the power supply for fingerprint sensor circuit, governor circuit and driving circuit；When touch-control circuit receives external touch signal, touch signal controlling power circuit starts to power, fingerprint sensor circuit acquires fingerprint signal and exports to governor circuit, governor circuit identifies fingerprint, and fingerprint identification information is exported to the opening and closing locked to driving circuit, driving circuit according to fingerprint identification information driving.Low-power consumption fingerprint lock control circuit provided by the utility model reduces the power consumption under standby mode.
Description
Technical field
The utility model relates to Fingerprint Lock technical fields, specifically, being related to a kind of low-power consumption fingerprint lock control circuit.
Background technique
Fingerprint Lock is a kind of using somatic fingerprint as the intelligent lock of identification carrier and means, the uniqueness of fingerprint and can not be answered
Property processed determines that Fingerprint Lock is lock kind the safest in current all locksets.
Fingerprint Lock is usually battery powered, and the booting of holding in 24 hours, but most of time is in standby mode, when collecting
One switching signal just triggers system and enters system worked well.Therefore the power consumption of fingerprint lock device is divided into the static state of standby mode
Dynamic power consumption when power consumption and normal work, quiescent dissipation refer to power consumption when circuit state does not change, that is, institute above
Power consumption when " standby " said；Dynamic power consumption refers to power consumption when having circuit state variation, and electric current is bigger in circuit at this time, meeting
There is bigger power consumption.
It is standby due to requiring the battery band machine time long, and in the case that most times are in quiescent dissipation
Quiescent dissipation is too big, and it is shorter to will lead to battery life, causes unnecessary trouble to user.
Utility model content
The purpose of this utility model is to provide a kind of low-power consumption fingerprint lock control circuits, reduce the function under standby mode
Consumption.
Technical solution used by low-power consumption fingerprint lock control circuit disclosed by the utility model is:
A kind of low-power consumption fingerprint lock control circuit, comprising:
Fingerprint sensor circuit is exported for the acquisition of finger print information, and by finger print information to governor circuit；
Touch-control circuit is electrically connected with the input terminal of power circuit, and the touch-control circuit is for judging whether there is external touch
Signal, and touch signal is exported into cut-offfing to power circuit controlling power circuit；
Governor circuit is electrically connected with fingerprint sensor circuit output end and driving circuit input terminal, and the governor circuit connects
Finger print information is received, and can finger print information be stored or be deleted, while fingerprint is carried out by stored finger print information
Identification, and fingerprint identification information is exported to driving circuit；
Driving circuit is electrically connected with governor circuit output end, and the driving circuit receives fingerprint identification information, and according to finger
The opening and closing of line identification information driving lock；
Power circuit is electrically connected with the power input of fingerprint sensor circuit, governor circuit and driving circuit, the electricity
Source circuit carries out voltage conversion, and the voltage after conversion is used for the power supply of fingerprint sensor circuit, governor circuit and driving circuit；
Under original state, power circuit is in non-power supply state, when touch-control circuit receives external touch signal, touch letter
Number controlling power circuit starts to power, and fingerprint sensor circuit acquires fingerprint signal and simultaneously exports to governor circuit, governor circuit pair
Fingerprint is identified, and fingerprint identification information is exported to driving circuit, and driving circuit is according to fingerprint identification information driving lock
Opening and closing.
Preferably, the fingerprint sensor circuit includes model C S3211 chip U204, and the chip U204 is
Capacitive sensing fingerprint sensor, the surface the chip U204 are equipped with several inductance capacitances.
Preferably, the touch-control circuit includes model RH6015C chip U201, capacitor C30, capacitor C31, capacitor
C32, resistance R914 and diode TVS221, input terminal of 1 foot of the chip U201 as touch-control output end and power circuit
Connection, 3 feet of the chip U201 are connect as touch-control input terminal with the one end resistance R914 and the one end capacitor C30, the capacitor
C30 other end ground connection, the resistance R914 other end are connect with the one end diode TVS221, the diode TVS221 other end
Ground connection, 5 feet of the chip U201 are connect as feeder ear with the one end capacitor C31 and the one end capacitor C32, and the capacitor C31 is another
One end and capacitor C32 other end ground connection.
Preferably, the power circuit includes model HM1138B332MR chip U103, resistance R133, diode
D100, D101,1 foot of the chip U103 are power end, 5 feet of the chip U103 as output end and governor circuit, refer to
Line sensor circuit is connected with drive circuitry end, and 3 feet of the chip U103 are as input enable end and resistance R133 mono-
End connection, the resistance R133 other end are connect with diode D106 cathode, D100 cathode, D101 cathode and D102 cathode, institute
It states diode D100 anode to connect with governor circuit output end, the touch-control output end of the diode D101 anode and touch-control circuit
Connection.
Preferably, the driving circuit includes model L9110S chip U105, capacitor C102, capacitor C103 and electricity
R122, R123 are hindered, 2,3 feet of the chip U105 are connect as power end with the one end capacitor C102, and the capacitor C102 is another
1,4 feet of end ground connection, the chip U105 are connect as output end with the motor of control lock opening and closing, and 6, the 7 of the chip U105
Foot is connect with the one end resistance R122 and the one end resistance R123 respectively as input terminal, the resistance R122 other end and resistance R123
The other end is connect with chip U105 power end.
Preferably, the governor circuit includes model I94100 chip U102, capacitor C105, capacitor C106, crystalline substance
Shake X100, and the chip U102 is communicated to connect by spi bus and fingerprint sensor circuit, 7,8 feet of the chip U102 with
1,3 feet of crystal oscillator X100 connect, and 2 feet of the crystal oscillator X100 are connect with the one end capacitor C105 and the one end capacitor C106, the electricity
Hold the C105 other end to connect with 1 foot of crystal oscillator X100, the capacitor C106 other end is connect with 3 feet of crystal oscillator X100, the core
20,21,22 feet of piece U102 can be connect with USB interface, and 32 feet of the chip U102 are defeated as output end and power circuit
Enter end connection, 37, the 38 of the chip U102 are connect as control output end with driving circuit input terminal.
The beneficial effect of low-power consumption fingerprint lock control circuit disclosed by the utility model is: under original state, power circuit
In non-power supply state, fingerprint sensor circuit, governor circuit and driving circuit are in off-position.When touch-control circuit receives
External touch signal, touch signal controlling power circuit start to power, fingerprint sensor circuit, governor circuit and driving circuit into
Enter working condition.Fingerprint sensor circuit acquires fingerprint signal and exports to governor circuit, and governor circuit identifies fingerprint,
And fingerprint identification information is exported to the opening and closing locked to driving circuit, driving circuit according to fingerprint identification information driving.Standby mode
Under, only touch-control circuit is in standby, and other circuits are then in off-position, greatly reduced under standby mode
Power consumption.
Detailed description of the invention
Fig. 1 is the fingerprint sensor circuit figure of the utility model low-power consumption fingerprint lock control circuit.
Fig. 2 is the touch-control circuit diagram of the utility model low-power consumption fingerprint lock control circuit.
Fig. 3 is the governor circuit figure of the utility model low-power consumption fingerprint lock control circuit.
Fig. 4 is the driving circuit figure of the utility model low-power consumption fingerprint lock control circuit.
Fig. 5 is the power circuit diagram of the utility model low-power consumption fingerprint lock control circuit.
Specific embodiment
The utility model is further elaborated and is illustrated with Figure of description combined with specific embodiments below:
Low-power consumption fingerprint lock control circuit include: fingerprint sensor circuit, touch-control circuit, governor circuit, driving circuit and
Power circuit.
Referring to FIG. 1, fingerprint sensor circuit include model C S3211 chip U204, capacitor C214, C215, C216,
C217, diode TVS214, TVS215, TVS216, TVS219, TVS220.Capacitor C214 is in parallel with diode TVS216, in parallel
One end is connect with chip U204 inductance capacitance input terminal afterwards, and the other end is connect with the one end diode TVS219 after parallel connection.Capacitor
C215 is in parallel with diode TVS217, it is in parallel after one end connect with chip U204 inductance capacitance input terminal, after parallel connection the other end and
The connection of the one end diode TVS219.Capacitor C216 is in parallel with diode TVS218, one end and chip U204 inductance capacitance after parallel connection
Input terminal connection, the other end is connect with the one end diode TVS219 after parallel connection.Diode TVS219 other end ground connection.Capacitor C217
In parallel with diode TVS220, one end is connect with chip U204 feeder ear after parallel connection, and the other end is grounded after parallel connection.Chip U204 is
Capacitive sensing fingerprint sensor, the surface chip U204 is equipped with several inductance capacitances, when finger touches the chip surface U204,
Inductance capacitance will be acquired the fingerprint of finger and export to chip U204, chip U204 and exports finger print information to master control electricity
Road.The fingerprint recognition mode of inductance capacitance, it is more safe and accurate to the identification of fingerprint.
Referring to FIG. 2, touch-control circuit include model RH6015C chip U201, capacitor C30, C31, C32, resistance R914 and
Diode TVS221.1 foot of chip U201 enables input terminal with power circuit as touch-control output end and connect.The 3 of chip U201
Foot is connect as touch-control input terminal with the one end resistance R914 and the one end capacitor C30, capacitor C30 other end ground connection, and resistance R914 is another
One end and the one end diode TVS221 and sense of touch capacitance connection, diode TVS221 other end ground connection.The 5 foot conducts of chip U201
Feeder ear is connect with battery output, the one end filter capacitor C31 and the one end C32, the filter capacitor C31 other end and the C32 other end
Ground connection.After sense of touch capacitor is touched, sense of touch capacitor generates touch information and is input to the touch-control input terminal of chip U201, then
Touch-control output end output high level to the power circuit of chip U201 enables input terminal, so that power circuit enters power supply state.
Referring to FIG. 3, governor circuit is electrically connected with fingerprint sensor circuit output end and driving circuit input terminal.Master control electricity
Road includes model I94100 chip U102, capacitor C105, C106, crystal oscillator X100.Chip U102 passes through spi bus and fingerprint sensing
The connection of device circuit communication.7,8 feet of chip U102 are connect with 1,3 feet of crystal oscillator X100,2 feet and capacitor C105 mono- of crystal oscillator X100
End is connected with the one end capacitor C106, and the capacitor C105 other end is connect with 1 foot of crystal oscillator X100, the capacitor C106 other end and crystal oscillator
3 feet of X100 connect.20,21,22 feet of chip U102 can be connect with USB interface, 32 feet of chip U102 as output end with
The enabled input terminal of power circuit connects.37, the 38 of chip U102 are connect as control output end with driving circuit input terminal.Core
Piece U102 receives the finger print information of fingerprint sensor circuit output, and can finger print information be stored or be deleted, and passes through simultaneously
Stored finger print information exports fingerprint identification information to driving circuit to identify to fingerprint.
Referring to FIG. 4, driving circuit include model L9110S chip U105, capacitor C102, C103 and resistance R122,
R123.2,3 feet of chip U105 are connect as power end with the one end filter capacitor C102, capacitor C102 other end ground connection.Chip
1,4 feet of U105 are connected to motor as output end, and motor is used to control the opening and closing of lock.6,7 feet of chip U105 are as input
End is connect with the one end resistance R122 and the one end resistance R123 respectively, the resistance R122 other end and the resistance R123 other end and power end
Connection.Chip U105 receives the fingerprint identification information of governor circuit, and according to the opening and closing of fingerprint identification information driving lock.
Referring to FIG. 5, power circuit output end and fingerprint sensor circuit, the power input of governor circuit and driving circuit
End electrical connection.Power circuit includes model HM1138B332MR chip U103, resistance R114, R130, R131, R133, diode
D106, D100, D101, D102, key SW101.1 foot of chip U103 is connect as power end with battery output.Chip
5 feet of U103 are connect as output end with governor circuit, fingerprint sensor circuit and drive circuitry end.The 3 of chip U103
Foot is connect as input enable end with the one end resistance R133, the resistance R133 other end and diode D106 cathode, D100 cathode,
D101 cathode is connected with D102 cathode.Resistance R114 connects with key SW101, mono- terminating diode D106 of resistance R114 after series connection
Anode, key SW101 mono- terminates battery after series connection.Diode D100 anode is connect with governor circuit output end, diode D101
Anode is connect with the touch-control output end of touch-control circuit.Diode D102 anode connects the one end resistance R130 and the one end resistance R131 and connects
It connects, another termination USB interface power end of resistance R130, resistance R131 other end ground connection.Power circuit converts battery voltage to
3.3V, the voltage after conversion are used for the power supply of fingerprint sensor circuit, governor circuit and driving circuit.When the input of chip U103
When enable end is high level, chip U103 can just enter working condition.The input enable end of chip U103 can pass through key SW101
Triggering manually, can also be triggered by touch-control circuit, can also be powered and be triggered by USB, after chip U103 starts to work, master control electricity
Road will export high level to the input enable end of chip U103, so that chip U103 is continued working.Until governor circuit exports
Low level is to the input enable end of chip U103, so that chip U103 is powered off.
Under original state, power circuit is in non-power supply state, at fingerprint sensor circuit, governor circuit and driving circuit
In off-position.When touch-control circuit receives external touch signal, touch signal controlling power circuit starts to power, fingerprint sensing
Device circuit, governor circuit and driving circuit enter working condition.Fingerprint sensor circuit acquires fingerprint signal and exports to master control
Circuit, governor circuit identify fingerprint, and fingerprint identification information is exported to driving circuit, and driving circuit is known according to fingerprint
The opening and closing of other information driving lock.Under standby mode, only touch-control circuit is in standby, and other circuits are then in power-off shape
State greatly reduced the power consumption under standby mode.
Finally it should be noted that above embodiments are only to illustrate the technical solution of the utility model, rather than to this reality
With the limitation of novel protected range, although being explained in detail referring to preferred embodiment to the utility model, this field it is general
Lead to it will be appreciated by the skilled person that can be with the technical solution of the present invention is modified or equivalently replaced, without departing from this
The spirit and scope of utility model technical solution.
Claims (6)
1. a kind of low-power consumption fingerprint lock control circuit characterized by comprising
Fingerprint sensor circuit is exported for the acquisition of finger print information, and by finger print information to governor circuit；
Touch-control circuit is electrically connected with the input terminal of power circuit, and the touch-control circuit is used to judge whether there is external touch signal,
And touch signal is exported into cut-offfing to power circuit controlling power circuit；
Governor circuit is electrically connected with fingerprint sensor circuit output end and driving circuit input terminal, and the governor circuit reception refers to
Line information, and can finger print information be stored or be deleted, while fingerprint is identified by stored finger print information,
And fingerprint identification information is exported to driving circuit；
Driving circuit is electrically connected with governor circuit output end, and the driving circuit receives fingerprint identification information, and is known according to fingerprint
The opening and closing of other information driving lock；
Power circuit is electrically connected with the power input of fingerprint sensor circuit, governor circuit and driving circuit, the power supply electricity
Road carries out voltage conversion, and the voltage after conversion is used for the power supply of fingerprint sensor circuit, governor circuit and driving circuit；
Under original state, power circuit is in non-power supply state, when touch-control circuit receives external touch signal, touch signal control
Power circuit processed starts to power, and fingerprint sensor circuit acquires fingerprint signal and exports to governor circuit, and governor circuit is to fingerprint
It is identified, and fingerprint identification information is exported to the opening and closing locked to driving circuit, driving circuit according to fingerprint identification information driving.
2. low-power consumption fingerprint lock control circuit as described in claim 1, which is characterized in that the fingerprint sensor circuit includes
Model C S3211 chip U204, the chip U204 are capacitive sensing fingerprint sensor, if the surface the chip U204 is equipped with
Dry inductance capacitance.
3. low-power consumption fingerprint lock control circuit as described in claim 1, which is characterized in that the touch-control circuit includes model
RH6015C chip U201, capacitor C30, capacitor C31, capacitor C32, resistance R914 and diode TVS221, the chip U201's
1 foot is connected as the input terminal of touch-control output end and power circuit, and 3 feet of the chip U201 are as touch-control input terminal and resistance
The one end R914 is connected with the one end capacitor C30, the capacitor C30 other end ground connection, the resistance R914 other end and diode
The connection of the one end TVS221, the diode TVS221 other end ground connection, 5 feet of the chip U201 are as feeder ear and capacitor
The one end C31 is connected with the one end capacitor C32, the capacitor C31 other end and capacitor C32 other end ground connection.
4. low-power consumption fingerprint lock control circuit as described in claim 1, which is characterized in that the power circuit includes model
HM1138B332MR chip U103, resistance R133, diode D100, D101,1 foot of the chip U103 is power end, described
5 feet of chip U103 are connect as output end with governor circuit, fingerprint sensor circuit and drive circuitry end, the chip
3 feet of U103 are connect as input enable end with the one end resistance R133, the resistance R133 other end and diode D106 cathode,
D100 cathode, D101 cathode are connected with D102 cathode, and the diode D100 anode is connect with governor circuit output end, and described two
The connection of the touch-control output end of pole pipe D101 anode and touch-control circuit.
5. low-power consumption fingerprint lock control circuit as described in claim 1, which is characterized in that the driving circuit includes model
2, the 3 feet conduct electricity of L9110S chip U105, capacitor C102, capacitor C103 and resistance R122, resistance R123, the chip U105
Source is connect with the one end capacitor C102, capacitor C102 other end ground connection, 1,4 feet of the chip U105 as output end and
The motor connection of control lock opening and closing, 6,7 feet of the chip U105 as input terminal respectively with the one end resistance R122 and resistance
The connection of the one end R123, the resistance R122 other end and the resistance R123 other end are connect with chip U105 power end.
6. low-power consumption fingerprint lock control circuit as described in claim 1, which is characterized in that the governor circuit includes model
I94100 chip U102, capacitor C105, capacitor C106, crystal oscillator X100, the chip U102 pass through spi bus and fingerprint sensor
Circuit communication connection, 7,8 feet of the chip U102 are connect with 1,3 feet of crystal oscillator X100,2 feet and capacitor of the crystal oscillator X100
The one end C105 is connected with the one end capacitor C106, and the capacitor C105 other end is connect with 1 foot of crystal oscillator X100, the capacitor C106
The other end is connect with 3 feet of crystal oscillator X100, and 20,21,22 feet of the chip U102 can be connect with USB interface, the chip
32 feet of U102 are connected as the input terminal of output end and power circuit, and 37, the 38 of the chip U102 are used as control output end
It is connect with driving circuit input terminal.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920383196.5U CN209486744U (en) | 2019-03-25 | 2019-03-25 | Low-power consumption fingerprint lock control circuit |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920383196.5U CN209486744U (en) | 2019-03-25 | 2019-03-25 | Low-power consumption fingerprint lock control circuit |
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| CN209486744U true CN209486744U (en) | 2019-10-11 |
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| CN201920383196.5U Active CN209486744U (en) | 2019-03-25 | 2019-03-25 | Low-power consumption fingerprint lock control circuit |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110807851A (en) * | 2019-11-07 | 2020-02-18 | 上海庆科信息技术有限公司 | Wireless identification fingerprint device and intelligent lock equipment |
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2019
- 2019-03-25 CN CN201920383196.5U patent/CN209486744U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110807851A (en) * | 2019-11-07 | 2020-02-18 | 上海庆科信息技术有限公司 | Wireless identification fingerprint device and intelligent lock equipment |
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