CN109697768B - Intelligent lock circuit and intelligent lock - Google Patents

Intelligent lock circuit and intelligent lock Download PDF

Info

Publication number
CN109697768B
CN109697768B CN201710986603.7A CN201710986603A CN109697768B CN 109697768 B CN109697768 B CN 109697768B CN 201710986603 A CN201710986603 A CN 201710986603A CN 109697768 B CN109697768 B CN 109697768B
Authority
CN
China
Prior art keywords
module
nfc
energy
circuit
lock
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CN201710986603.7A
Other languages
Chinese (zh)
Other versions
CN109697768A (en
Inventor
周若谷
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hangzhou Qiwei Technology Co ltd
Original Assignee
Hangzhou Qiwei Technology Co ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Hangzhou Qiwei Technology Co ltd filed Critical Hangzhou Qiwei Technology Co ltd
Priority to CN201710986603.7A priority Critical patent/CN109697768B/en
Priority to PCT/CN2018/111004 priority patent/WO2019076367A1/en
Publication of CN109697768A publication Critical patent/CN109697768A/en
Application granted granted Critical
Publication of CN109697768B publication Critical patent/CN109697768B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • G—PHYSICS
    • G07—CHECKING-DEVICES
    • G07C—TIME OR ATTENDANCE REGISTERS; REGISTERING OR INDICATING THE WORKING OF MACHINES; GENERATING RANDOM NUMBERS; VOTING OR LOTTERY APPARATUS; ARRANGEMENTS, SYSTEMS OR APPARATUS FOR CHECKING NOT PROVIDED FOR ELSEWHERE
    • G07C9/00—Individual registration on entry or exit
    • G07C9/00174—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B47/00—Operating or controlling locks or other fastening devices by electric or magnetic means
    • E05B47/0001—Operating or controlling locks or other fastening devices by electric or magnetic means with electric actuators; Constructional features thereof
    • E05B47/0012—Operating or controlling locks or other fastening devices by electric or magnetic means with electric actuators; Constructional features thereof with rotary electromotors
    • G—PHYSICS
    • G07—CHECKING-DEVICES
    • G07C—TIME OR ATTENDANCE REGISTERS; REGISTERING OR INDICATING THE WORKING OF MACHINES; GENERATING RANDOM NUMBERS; VOTING OR LOTTERY APPARATUS; ARRANGEMENTS, SYSTEMS OR APPARATUS FOR CHECKING NOT PROVIDED FOR ELSEWHERE
    • G07C9/00—Individual registration on entry or exit
    • G07C9/00174—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys
    • G07C2009/00634—Power supply for the lock

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Lock And Its Accessories (AREA)

Abstract

The invention discloses an intelligent lock circuit and an intelligent lock, wherein the intelligent lock circuit comprises an NFC communication module and a driving module; the NFC communication module is electrically connected with the driving module; the NFC communication module comprises an NFC antenna, and the NFC antenna is used for collecting electric energy in received NFC signals; the NFC communication module is used for transmitting the electric energy acquired by the NFC antenna to the driving module; the driving module is used for driving the intelligent lock to execute locking and unlocking operations by using electric energy. The intelligent lock overcomes the defect that the existing intelligent lock needs to be powered by an external battery, gets rid of the limitation of the battery, and is convenient to use; meanwhile, the intelligent lock is reduced in size, weight and production cost due to the fact that a battery and a battery charging circuit are not needed.

Description

Intelligent lock circuit and intelligent lock
Technical Field
The invention relates to the technical field of wireless communication, in particular to an intelligent lock circuit and an intelligent lock.
Background
The intelligent lock is used as an intelligent home product which is in the rise in recent years, and has the characteristics of convenience in use, high safety, powerful functions and the like. Most of the existing intelligent locks are powered by batteries and are communicated with a mobile phone of a user through Bluetooth or NFC (NEAR FIELD Communication) and the like to verify the identity of the user to perform locking and unlocking operations of the intelligent locks.
However, the existing intelligent lock can only be suitable for a door lock due to the problems of volume, power consumption and the like. When used in applications other than door locks, such as small personal chest locks, trunk locks, and shared single car locks, many difficulties are encountered. Because the intelligent lock of the type is small in volume, a battery is difficult to be built in, and even if the battery can be built in, the battery is quickly exhausted due to the fact that a large amount of electric energy is consumed when the lock works, and the power supply is easy to be insufficient. Meanwhile, the Bluetooth unlocking is needed to be paired in advance, and is not suitable for the scene of sharing the intelligent lock and the common use of a large number of users, such as sharing a single vehicle lock, so that the problems greatly restrict the application of the intelligent lock outside the door lock. The existing intelligent lock products outside the door lock are generally provided with batteries by increasing the volume of the lock, so that the products are not attractive and inconvenient to use, and the user experience is poor.
Disclosure of Invention
The invention aims to overcome the defects that an intelligent lock in the prior art needs to be powered by a battery, power supply is insufficient for the intelligent lock with smaller volume, the intelligent lock with larger volume is not attractive and inconvenient, and user experience is poor, and the like.
The invention solves the technical problems by the following technical scheme:
the invention provides an intelligent lock circuit, which comprises an NFC communication module and a driving module;
the NFC communication module is electrically connected with the driving module;
The NFC communication module comprises an NFC antenna, and the NFC antenna is used for collecting electric energy in received NFC signals;
the NFC communication module is used for transmitting the electric energy acquired by the NFC antenna to the driving module;
the driving module is used for driving the intelligent lock to execute locking and unlocking operations by using electric energy.
Preferably, the smart lock circuit further comprises an energy management circuit;
The energy management circuit is respectively and electrically connected with the NFC communication module and the driving module;
The energy management circuit is used for receiving the electric energy transmitted by the NFC communication module and transmitting the received electric energy to the driving module. Preferably, the intelligent lock circuit further comprises a rectifying circuit and a voltage stabilizing circuit;
The rectification circuit is respectively and electrically connected with the NFC communication module, the voltage stabilizing circuit and the energy management circuit;
The NFC communication module is used for receiving radio frequency energy transmitted by the NFC energy antenna and transmitting the radio frequency energy to the rectifying circuit;
The rectification circuit is used for converting the radio frequency energy into first direct current electric energy and transmitting the first direct current electric energy to the voltage stabilizing circuit and the energy management circuit;
The voltage stabilizing circuit is used for carrying out voltage reduction and voltage stabilization on the first direct current energy, converting the first direct current energy into second direct current energy and supplying power to the NFC communication module and the energy management circuit;
The energy management circuit is configured to transmit the first direct current energy to the drive module.
Preferably, the intelligent lock circuit further comprises an energy storage module;
the energy management circuit is electrically connected with the energy storage module and is used for transmitting the received first direct current energy to the energy storage module for charging.
Preferably, the energy management circuit is configured to cut off charging of the energy storage module when the energy storage module pulls down the electric energy collected by the NFC antenna to a first voltage threshold.
Preferably, the energy management circuit comprises a charging switch, the charging switch is electrically connected with the energy storage module, and the energy management circuit is further used for controlling the on and off of the charging switch.
Preferably, the charging switch further comprises a charging inhibition control end, and the charging inhibition control end is used for forcibly turning off the charging switch.
Preferably, the energy management circuit comprises a first voltage comparator;
the two input ends of the first voltage comparator are respectively used for inputting the voltage of the first direct current electric energy and the first voltage threshold value, the output end of the first voltage comparator is electrically connected with the charging switch, and the first voltage comparator is used for outputting a conducting signal to the charging switch when the voltage of the first direct current electric energy is higher than the first voltage threshold value.
Preferably, the energy storage module is used for discharging to the energy management circuit;
the energy management circuit is also used for transmitting the discharging electric energy of the energy storage module to the driving module.
Preferably, the energy management circuit further comprises a discharge switch, the energy storage module is electrically connected with the driving module through the discharge switch, and the energy management circuit is further used for controlling on and off of the discharge switch.
Preferably, the response time of the charge switch is less than 10 μs and/or the response time of the discharge switch is less than 10 μs.
Preferably, the energy management circuit further comprises a second voltage comparator;
the two input ends of the second voltage comparator are respectively input with the energy storage voltage of the energy storage module and a second voltage threshold, the output end of the second voltage comparator is electrically connected with the discharge switch, and the second voltage comparator is used for outputting a power supply warning signal to the driving module through the discharge switch when the energy storage voltage of the energy storage module is lower than the second voltage threshold.
Preferably, the energy management circuit further comprises a third voltage comparator;
The two input ends of the third voltage comparator are respectively input with the energy storage voltage of the energy storage module and a third voltage threshold, the third voltage threshold is smaller than the second voltage threshold, and the third voltage comparator is used for outputting a turn-off signal to the discharge switch when the energy storage voltage of the energy storage module is lower than the third voltage threshold.
Preferably, the intelligent lock circuit further comprises a control module;
the control module is respectively in communication connection with the NFC communication module, the energy management circuit and the driving module;
the control module is used for carrying out data transmission with the NFC communication module;
The control module is also used for sending a control instruction to the driving module;
The voltage stabilizing circuit is electrically connected with the control module and supplies power to the control module through the second direct current electric energy.
Preferably, the control module is configured to perform user authentication according to the received NFC signal.
Preferably, the driving module comprises a driving axle;
the drive axle comprises a MOSFET or an IGBT.
Preferably, the NFC antenna includes a separate energy antenna, a separate receiving antenna and a separate transmitting antenna; the energy antenna is used for collecting electric energy in the received NFC signals;
the NFC communication module further comprises a demodulation module, a modulation module and an NFC controller, the receiving antenna is electrically connected with the demodulation module, the transmitting antenna is electrically connected with the modulation module, and the NFC controller is respectively electrically connected with the demodulation module and the modulation module;
The receiving antenna is used for receiving NFC signals transmitted by the NFC card reader and sending the NFC signals to the demodulation module, and the demodulation module demodulates the NFC signals and then transmits demodulated data to the NFC controller;
The NFC controller is used for transmitting data to be transmitted to the modulation module according to a preset format, and transmitting an NFC signal to the NFC card reader through the transmitting antenna after the data are modulated by the modulation module.
Preferably, the NFC antenna comprises a separate energy antenna and a separate communication antenna; the energy antenna is used for collecting electric energy in the received NFC signals;
The NFC communication module further comprises a demodulation module, a modulation module and an NFC controller, and the communication antenna is respectively and electrically connected with the demodulation module and the modulation module;
The communication antenna is used for receiving NFC signals transmitted by the NFC card reader and sending the NFC signals to the demodulation module, and the demodulation module demodulates the NFC signals and then transmits demodulated data to the NFC controller;
The NFC controller is used for transmitting data to be transmitted to the modulation module according to a preset format, and the NFC controller is used for transmitting NFC signals to the NFC card reader through the communication antenna after modulating the data by the modulation module.
Preferably, the NFC communication module further includes a data interface; the data interface is in communication connection with the control module.
Preferably, the rectifying circuit comprises a diode rectifying bridge, the diode voltage drop of the diode in the diode rectifying bridge is smaller than 1V when the conducting current is 20mA, and/or the voltage stabilizing circuit comprises a linear voltage stabilizer or a switching voltage stabilizer, and the output voltage range of the voltage stabilizing circuit is 1.7V-3.6V.
Preferably, the energy storage module comprises an energy storage capacitor; the capacitance value of the energy storage capacitor is 22 mu F-0.47F.
Preferably, the electric energy obtained by the NFC communication module is at least 20mW.
The invention also provides an intelligent lock, which comprises the intelligent lock circuit; the intelligent lock also comprises an action mechanism and a lock core mechanism;
the driving module, the action mechanism and the lock core mechanism are connected with one another in sequence;
The driving module is used for driving the action mechanism to drive the lock cylinder mechanism to execute locking and unlocking operations.
Preferably, the action mechanism comprises a motor and a motor shaft fixedly arranged at one side of the motor, and threads are arranged on the motor shaft;
The motor is electrically connected with the driving module of the intelligent lock circuit and is used for converting electric energy provided by the driving module into kinetic energy to drive the motor shaft to rotate;
the lock core mechanism comprises a lock core seat and a lock core fixedly arranged on one side of the lock core seat;
The lock cylinder seat is provided with a first opening, and a nut matched with the thread on the motor shaft is arranged on the inner side of the first opening;
the motor shaft is connected with the lock cylinder seat through the first opening.
Preferably, the intelligent lock further comprises a lock cylinder limiter;
the lock cylinder limiter is provided with a second opening, the lock cylinder is inserted into the lock cylinder limiter through the second opening, and the second opening is larger than the lock cylinder;
the lock cylinder limiter is used for limiting the rotation of the lock cylinder, ensuring that the lock cylinder performs linear motion along the direction of the motor shaft, and not applying resistance to the linear motion of the lock cylinder.
Preferably, the diameter of the second opening is 0.8 mm-3 mm longer than the diameter of the lock cylinder.
Preferably, the intelligent lock further comprises a base;
The motor and the lock cylinder limiter are both fixed on the base.
Preferably, the intelligent lock further comprises a position sensor;
the position sensor comprises a first conductive contact and a second conductive contact which are fixedly arranged on the base, and a third conductive contact which is fixedly arranged on the lock core seat;
The first conductive contact, the second conductive contact and the third conductive contact are arranged along the direction of the motor shaft and are arranged on the same straight line;
the third conductive contact is arranged between the first conductive contact and the second conductive contact;
the third conductive contact moves along with the lock cylinder seat and is used for contacting with the first conductive contact or the second conductive contact to form a current loop;
The intelligent lock circuit obtains the position relation between the lock core seat and the lock core through the current loop.
Preferably, the first conductive contact is closer to the motor than the second conductive contact;
when the first conductive contact is contacted with the third conductive contact, the intelligent lock is in a locking state;
and when the second conductive contact is contacted with the third conductive contact, the intelligent lock is in an unlocking state.
Preferably, the motor comprises a direct current stepper motor or a direct current non-stepper motor.
Preferably, the lock cylinder seat, the base and the lock cylinder limiter are made of metal, plastic and/or wood.
The invention has the positive progress effects that:
According to the intelligent lock, the NFC energy antenna in the NFC communication module is adopted to acquire electric energy in an NFC signal, the acquired alternating current is converted into direct current through the rectifying circuit and is provided for the driving module to work, the driving module drives the action mechanism to further drive the lock cylinder to act, locking and unlocking operations of the lock cylinder are achieved, the defect that an external battery is required to be adopted for power supply of an existing intelligent lock is overcome, the limitation of the battery is eliminated, and the intelligent lock is convenient to use; meanwhile, the intelligent lock is reduced in size, weight and production cost due to the fact that a battery and a battery charging circuit are not needed.
Drawings
Fig. 1 is a schematic circuit diagram of a smart lock circuit according to embodiment 1 of the present invention;
fig. 2 is a schematic circuit diagram of a smart lock circuit according to embodiment 2 of the present invention;
fig. 3 is a schematic circuit diagram of a smart lock circuit according to embodiment 3 of the present invention;
FIG. 4 is a schematic diagram of the whole structure of the smart lock according to embodiment 4 of the present invention;
FIG. 5 is a top view block diagram of the smart lock of embodiment 4 of the present invention;
FIG. 6 is a left-view block diagram of the intelligent lock according to embodiment 4 of the present invention;
fig. 7 is a block diagram showing the front structure of the smart lock according to embodiment 4 of the present invention.
Detailed Description
The invention is further illustrated by means of the following examples, which are not intended to limit the scope of the invention.
Example 1
As shown in fig. 1, the smart lock circuit of the present invention includes an NFC communication module 1, a rectifying circuit 2, a voltage stabilizing circuit 3, an energy management circuit 4, an energy storage module 5, a driving module 6, and a control module 7.
The NFC communication module 1 includes an NFC antenna 11, where the NFC antenna 11 is configured to collect radio frequency energy in a received NFC signal.
The NFC antenna 11 may collect electric energy of 20mW or more in an NFC signal transmitted by an intelligent terminal with an NFC antenna.
The NFC antenna 11 is arranged inside the shell of the intelligent lock, on the inner surface or on the outer surface of the shell, is required to be arranged close to the outer surface of the intelligent lock as much as possible, and is composed of a plurality of coils, and the area of the NFC antenna is 900mm 2-2500mm2.
The NFC communication module 1 further comprises a data interface 12; the data interface 12 is in communication with the control module 7.
The rectifying circuit 2 is electrically connected to the NFC communication module 1, the voltage stabilizing circuit 3, and the energy management circuit 4, respectively.
The rectifying circuit 2 is configured to receive radio frequency energy transmitted by the NFC communication module 1, convert the radio frequency energy into first direct current electric energy, and transmit the first direct current electric energy to the voltage stabilizing circuit 3 and the energy management circuit 4. The first direct current electric energy is direct current high voltage.
Specifically, the rectifying circuit 2 includes a diode rectifying bridge in which a diode voltage drop is less than 1V when the on current is 20 mA.
The voltage stabilizing circuit 3 is configured to perform voltage reduction and voltage stabilization on the first dc power, and convert the first dc power into second dc power, so as to supply power to the NFC communication module 1 and the energy management circuit 4; the second direct current electric energy is direct current low voltage.
Specifically, the voltage stabilizing circuit 3 includes a linear voltage stabilizer or a switching voltage stabilizer, and the output voltage range of the voltage stabilizing circuit 3 is 1.7V to 3.6V.
The energy management circuit 4 is used to transmit the first direct current energy to the drive module 6.
The energy management circuit 4 is electrically connected with the energy storage module 5, and is configured to transmit the electric energy collected by the NFC antenna 11 to the energy storage module 5 for charging.
Specifically, the energy management circuit 4 is configured to cut off charging of the energy storage module 5 when the energy storage module 5 pulls down the electric energy collected by the NFC antenna 11 to a first voltage threshold.
The energy management circuit 4 comprises a charge switch 41, a discharge switch 42, a first voltage comparator 43, a second voltage comparator 44 and a third voltage comparator 45.
The charging switch 41 is electrically connected to the energy storage module 5, and the energy management circuit 4 is further configured to control on and off of the charging switch 41.
The charging switch 41 includes a charge inhibit control terminal 411, and the charge inhibit control terminal 411 is configured to forcibly turn off the charging switch 41.
The energy storage module 5 is used for discharging to the energy management circuit 4; the energy management circuit 4 is also used to transmit the discharging electrical energy of the energy storage module 5 to the drive module 6.
Specifically, the energy storage module 5 is electrically connected to the driving module 6 through the discharge switch 42, and the energy management circuit 4 is further configured to control on and off of the discharge switch 42.
In specific implementation, the energy storage module 5 may preferably be an energy storage capacitor, the capacitance value of the energy storage capacitor may be preferably in the range of 22 μf to 0.47F, the specific capacitance value may be selected according to actual needs, the larger capacitance may store more electric energy, the smoothing effect is better, but the charging time is longer when the power is on, the waiting time of the user is longer, and the withstand voltage value of the energy storage capacitor is designed according to the energy acquired by the NFC energy antenna and generally needs to be above 9V; in order to reduce ESR (Equivalent serial resistance) of the energy storage module 5 to improve storage efficiency, a plurality of capacitors may be used to design the energy storage module 5 in parallel. The response time of the charge switch 41 is less than 10 mus and/or the response time of the discharge switch 42 is less than 10 mus.
Because the energy storage capacitor of the energy storage module 5 is larger, the instant current is extremely large, the direct current high voltage can be pulled down in a short time, the input voltage of the voltage stabilizing circuit 3 is rapidly reduced, the direct current low voltage generated by the voltage stabilizing circuit 3 is cut off, and the whole intelligent lock circuit is reset; meanwhile, the instantaneous excessive change of the collected dc high voltage may interfere with the receiving and transmitting of the NFC signal of the NFC communication module 1, so the energy management circuit 4 is required to monitor the change of the input dc high voltage and manage the charging time of the energy storage module 5.
Specifically, the energy management circuit 4 inputs the voltage of the first dc power and the first voltage threshold at two input ends of the first voltage comparator 43, where the output end of the first voltage comparator is electrically connected to the charging switch 41, and the first voltage comparator 43 is configured to output an on signal to the charging switch 41 when the voltage of the first dc power is higher than the first voltage threshold, and otherwise output an off signal to the charging switch 41, so that the charging switch 41 is in an off state when the voltage of the first dc power is not higher than the first voltage threshold.
The specific value of the first voltage threshold should be generally configured according to practical application requirements to meet different application requirements, but should generally be between 3.3V and 10V.
Wherein, the NFC communication module 1 does not perform a charging operation on the energy storage module 5 when receiving and transmitting NFC signals through the NFC antenna 11.
The energy management circuit 4 is also used for monitoring the energy use condition of the driving module 6, so that the driving module 6 can not consume the energy of the energy storage module 5, and the situation that the intelligent lock circuit is reset due to the excessively low direct-current high-voltage pull is caused. The energy management circuit 4 provides the control module 7 with an indication of the state of charge of the energy storage module 5 and disconnects the drive module 6 if necessary.
Specifically, the energy management circuit 4 inputs the energy storage voltage of the energy storage module 5 and the second voltage threshold value at two input ends of the second voltage comparator 44, the output end of the second voltage comparator is electrically connected with the discharge switch 42, and the second voltage comparator 44 is configured to output a power alarm signal to the driving module 6 through the discharge switch 42 when the energy storage voltage of the energy storage module 5 is lower than the second voltage threshold value, and send the power alarm signal to the control module 7, the control module 7 temporarily disables the driving module 6, and after the power alarm signal is cancelled, the control module 7 controls the driving module 6 to resume normal operation.
The specific value of the second voltage threshold should be generally configured according to practical application requirements to meet different application requirements, but should generally be between 3.3V and 7V
The two input ends of the third voltage comparator 45 respectively input the energy storage voltage of the energy storage module 5 and a third voltage threshold, the third voltage threshold is smaller than the second voltage threshold, the third voltage comparator 45 is configured to output a shutdown signal to the discharge switch 42 and send the shutdown signal to the control module 7 when the energy storage voltage of the energy storage module 5 is lower than the third voltage threshold, the control module 7 temporarily disables the driving module 6, and the control module 7 resets the driving module 6 after the shutdown signal and the power alarm signal are cancelled.
The second voltage threshold should be higher than the third voltage threshold, and the specific value of the third voltage threshold should be generally configured according to practical application requirements to meet different application requirements, but should generally be between 2.4V and 5V.
The control module 7 is respectively in communication connection with the NFC communication module 1, the energy management circuit 4 and the driving module 6;
the control module 7 is used for carrying out data transmission with the NFC communication module 1;
the control module 7 is further configured to send a control instruction to the driving module 6, so that control of the driving module 6 is achieved through the control instruction;
The voltage stabilizing circuit 3 is electrically connected with the control module 7 and supplies power to the control module 7 through the second direct current electric energy.
The control module 7 is configured to obtain user authentication information in an NFC signal sent by the received intelligent terminal through the NFC antenna, so as to authenticate the identity of the user.
Wherein, the driving module 6 comprises a driving axle, and the driving axle comprises a MOSFET or an IGBT and the like and is used for driving the intelligent lock to execute locking and unlocking operations according to the electric energy input by the energy management circuit 4.
The working principle of the intelligent lock of the embodiment is as follows:
In this embodiment, the NFC antenna 11 in the NFC communication module 1 collects radio frequency energy in an NFC signal sent by the intelligent terminal, and transmits the radio frequency energy to the rectifying circuit 2 through the NFC communication module 1; the rectification circuit 2 converts alternating current electric energy corresponding to the received radio frequency energy into direct current high voltage, and then the direct current high voltage is subjected to step-down treatment by the voltage stabilizing circuit 3 and converted into stable direct current low voltage, so that power is respectively supplied to the NFC communication module 1, the control module 7 and the energy management circuit 4; meanwhile, the rectification circuit 2 transmits the converted direct current high voltage to the energy management circuit 4 for charging and storing energy for the energy storage module 5, the energy management circuit 4 transmits the direct current high voltage to the driving module 6, and the driving module 6 drives the intelligent lock to execute locking and unlocking operations. Wherein the NFC signal is received and transmitted through the NFC antenna 11; the first voltage comparator 43 in the energy management circuit 4 is used to ensure the normal operation of the voltage stabilizing circuit 3, and the second voltage comparator 44 and the third voltage comparator 45 are used to ensure the normal operation of the driving module 6.
Example 2
As shown in fig. 2, this embodiment differs from embodiment 1 in that:
the NFC antenna 11 of the present embodiment includes an independent energy antenna 111, an independent receiving antenna 13, and an independent transmitting antenna 14; the NFC communication module further comprises a demodulation module 15, a modulation module 16 and an NFC controller 17, the receiving antenna 13 is electrically connected with the demodulation module 15, the transmitting antenna 14 is electrically connected with the modulation module 16, and the NFC controller 17 is electrically connected with the demodulation module 15 and the modulation module 16 respectively. The NFC communication module 1 may further comprise an NFC antenna interface. The energy antenna 111 is configured to collect electrical energy in the received NFC signal.
The receiving antenna 13 is configured to receive an NFC signal transmitted by the NFC reader, and the demodulation module 15 demodulates the NFC signal and then transmits data to the NFC controller 17;
The NFC controller 17 transmits data to the modulation module 16 according to a predetermined format, and sends an NFC signal to the NFC reader through the transmitting antenna 14 after being modulated by the modulation module 16.
The NFC reader is an intelligent terminal (such as a mobile phone) with an NFC antenna.
The energy antenna 111, the receiving antenna 13 and the transmitting antenna 14 can be arranged in the shell of the intelligent lock, on the inner surface or on the outer surface of the intelligent lock, and are required to be arranged close to the outer surface of the intelligent lock as much as possible, and each energy antenna is composed of a plurality of coils, and the area of each energy antenna is within 900mm 2-2500mm2.
The working principle of the intelligent lock of the embodiment is as follows:
In this embodiment, the energy antenna 111 in the NFC communication module 1 collects radio frequency energy in the NFC signal sent by the intelligent terminal, and transmits the radio frequency energy to the rectifying circuit 2 through the NFC communication module 1; the rectification circuit 2 converts alternating current electric energy corresponding to the received radio frequency energy into direct current high voltage, and then the direct current high voltage is subjected to step-down treatment by the voltage stabilizing circuit 3 and converted into stable direct current low voltage, so that power is respectively supplied to the NFC communication module 1, the control module 7 and the energy management circuit 4; meanwhile, the rectification circuit 2 transmits the converted direct current high voltage to the energy management circuit 4 for charging and storing energy for the energy storage module 5, the energy management circuit 4 transmits the direct current high voltage to the driving module 6, and the driving module 6 drives the intelligent lock to execute locking and unlocking operations. Wherein, the NFC signals are received and transmitted through the independent receiving antenna 13 and the independent transmitting antenna 14 respectively; the first voltage comparator 43 in the energy management circuit 4 is used to ensure the normal operation of the voltage stabilizing circuit 3, and the second voltage comparator 44 and the third voltage comparator 45 are used to ensure the normal operation of the driving module 6.
Example 3
As shown in fig. 3, this embodiment differs from embodiment 2 in that:
the NFC antenna 11 of this embodiment includes a separate energy antenna 111 and a separate communication antenna 20, that is, the separate communication antenna 20 is used to replace the separate receiving antenna 13 and the separate transmitting antenna 14 in embodiment 2, so as to implement receiving and transmitting of NFC signals.
Specifically, the communication antenna 20 is electrically connected to the demodulation module 15 and the modulation module 16. After the communication antenna 20 receives the NFC signal transmitted by the NFC reader, the demodulation module 15 demodulates the NFC signal and then transmits the demodulated data to the NFC controller 17;
the NFC controller 17 transmits data to the modulation module 16 according to a predetermined format, and sends an NFC signal to the NFC reader through the communication antenna 20 after being modulated by the modulation module 16.
The energy antenna 111 and the communication antenna 20 can be arranged inside, on the inner surface or on the outer surface of the shell of the intelligent lock, and are required to be arranged close to the outer surface of the intelligent lock as much as possible, and each energy antenna is composed of a plurality of coils, and the area of each energy antenna is within 900mm 2-2500mm2.
The working principle of the intelligent lock of the embodiment is as follows:
In this embodiment, the energy antenna 111 in the NFC communication module 1 collects radio frequency energy in the NFC signal sent by the intelligent terminal, and transmits the radio frequency energy to the rectifying circuit 2 through the NFC communication module 1; the rectification circuit 2 converts alternating current electric energy corresponding to the received radio frequency energy into direct current high voltage, and then the direct current high voltage is subjected to step-down treatment by the voltage stabilizing circuit 3 and converted into stable direct current low voltage, so that power is respectively supplied to the NFC communication module 1, the control module 7 and the energy management circuit 4; meanwhile, the rectification circuit 2 transmits the converted direct current high voltage to the energy management circuit 4 for charging and storing energy for the energy storage module 5, the energy management circuit 4 transmits the direct current high voltage to the driving module 6, and the driving module 6 drives the intelligent lock to execute locking and unlocking operations. Wherein NFC signals are received and transmitted through a communication antenna 20 in the NFC antenna 11; the first voltage comparator 43 in the energy management circuit 4 is used to ensure the normal operation of the voltage stabilizing circuit 3, and the second voltage comparator 44 and the third voltage comparator 45 are used to ensure the normal operation of the driving module 6.
Example 4
As shown in fig. 4, the smart lock of the present embodiment includes the smart lock circuit of embodiment 1, the action mechanism 8, and the key cylinder mechanism 9.
The driving module 6, the actuating mechanism 8 and the lock core mechanism 9 of the intelligent lock circuit are sequentially connected with each other. The driving module 6 is used for driving the actuating mechanism 8 to drive the lock cylinder mechanism 9 to execute locking and unlocking operations.
As shown in fig. 4 to 7, specifically, the action mechanism 8 includes a motor 81 and a motor shaft 82 fixed to one side of the motor 81; the motor shaft 82 is provided with threads.
Wherein the motor 81 comprises a DC stepper motor or a DC non-stepper motor.
The motor 81 is connected with the driving module 6 of the intelligent lock circuit, and is used for converting electric energy provided by the driving module 6 into kinetic energy to drive the motor shaft 82 to rotate;
The lock cylinder mechanism 9 comprises a lock cylinder seat 91, a lock cylinder 92 fixedly arranged on one side of the lock cylinder seat 91 and a lock cylinder limiter 93;
the lock cylinder seat 91 is provided with a first hole 911, and the first hole 911 is matched with the motor shaft 82; specifically, a nut matched with the thread on the motor shaft 82 is arranged on the inner side of the first hole 911; the motor shaft 82 is connected to the cylinder block 91 through the first opening 911.
The motor shaft 82 is connected with the lock cylinder seat 91 through the first hole 911, so as to drive the lock cylinder seat 91 to move along the direction of the motor shaft 82.
The lock cylinder limiter 93 is provided with a second opening 931, the lock cylinder 92 is inserted into the lock cylinder limiter 93 through the second opening 931, and the second opening is larger than the lock cylinder;
Specifically, the diameter of the second opening 931 is 0.8mm to 3mm longer than the diameter of the key cylinder 92.
The second opening 931 has a slightly larger diameter than the lock cylinder 92 to ensure that the lock cylinder 92 performs a linear motion in the direction of the motor shaft 82 without exerting a resistance to the linear motion of the lock cylinder.
The intelligent lock further comprises a base 10, and the motor 81 and the lock cylinder limiter 93 are fixedly arranged on the base 10.
Wherein the lock cylinder seat 91, the base 10 and the lock cylinder limiter 93 are made of metal, plastic and/or wood.
The smart lock also includes a position sensor 110; the position sensor 110 includes at least one of a photosensor, a micro switch, and a capacitive sensing sensor.
The position sensor 110 includes a first conductive contact 1111, a second conductive contact 1112, and a third conductive contact 1113, which are fixedly disposed on the base 10 and the cylinder seat 91;
The first conductive contact 1111, the second conductive contact 1112, and the third conductive contact 1113 are disposed along the motor shaft 82 and on the same line;
the third conductive contact 1113 is disposed between the first conductive contact 1111 and the second conductive contact 1112;
The third conductive contact 1113 moves along with the lock cylinder base 91, so as to contact with the first conductive contact 1111 or the second conductive contact 1112 to form a current loop;
the intelligent lock circuit obtains the positional relationship between the lock cylinder seat 91 and the lock cylinder 92 through the current loop.
Specifically, the first conductive contact 1111 is disposed closer to the motor 81 than the second conductive contact 1112;
the smart lock is in a locked state when the first conductive contact 1111 is in contact with the third conductive contact 1113;
The smart lock is in an unlocked state when the second conductive contact 1112 is in contact with the third conductive contact 1113.
When the third conductive contact 1113 is not in contact with both the first conductive contact 1111 and the second conductive contact 1112, then the lock cylinder 92 of the smart lock is in an indeterminate intermediate position of the locked and unlocked positions.
When the locking operation is performed, the control module 7 controls the driving module 6 to drive the actuating mechanism 8 to lock the lock cylinder mechanism 9, and when the actuating mechanism 8 returns a signal for finishing locking the control module 7, the control module 7 immediately stops driving the actuating mechanism 8; similarly, when the unlocking operation is performed, the control module 7 controls the driving module 6 to drive the actuating mechanism 8 to unlock the lock core mechanism 9, and when the actuating mechanism 8 returns to a signal for the unlocking completion of the control module 7, the control module 7 immediately stops driving the actuating mechanism 8.
The working principle of the intelligent lock of the embodiment is as follows:
The NFC antenna 11 in the NFC communication module 1 of the embodiment collects radio frequency energy in a received NFC signal, and transmits the radio frequency energy to the rectifying circuit 2 through the NFC communication module 1, the rectifying circuit 2 converts alternating current energy corresponding to the received radio frequency energy into direct current high voltage, and the direct current high voltage is subjected to step-down processing by the voltage stabilizing circuit 3 and converted into stable direct current low voltage, so that the NFC communication module 1, the control module 7 and the energy management circuit 4 are powered; meanwhile, the rectification circuit 2 transmits the converted direct current high voltage to the energy management circuit 4 for charging and storing energy for the energy storage module 5, the energy management circuit 4 transmits the direct current high voltage to the driving module 6, and the driving module 6 drives the intelligent lock to execute locking and unlocking operations.
The driving module 6 is connected with a motor 81 in the actuating mechanism 8, the motor 81 is used for converting electric energy provided by the driving module 6 into kinetic energy to drive the motor shaft 82 to rotate, and the motor shaft 82 rotates to drive the lock core seat 91 to linearly move along the direction of the motor shaft 82; wherein the locking, unlocking or indeterminate state of the smart lock is determined by the contact of the third conductive contact 1113 of the position sensor 110 with the first conductive contact 1111 or the second conductive contact 1112.
While specific embodiments of the invention have been described above, it will be appreciated by those skilled in the art that these are by way of example only, and the scope of the invention is defined by the appended claims. Various changes and modifications to these embodiments may be made by those skilled in the art without departing from the principles and spirit of the invention, but such changes and modifications fall within the scope of the invention.

Claims (27)

1. The intelligent lock circuit is characterized by comprising an NFC communication module, a rectifying circuit, a voltage stabilizing circuit, an energy storage module, an energy management circuit and a driving module; the rectification circuit is respectively and electrically connected with the NFC communication module, the voltage stabilizing circuit and the energy management circuit; the energy management circuit is respectively and electrically connected with the energy storage module and the driving module;
the NFC communication module comprises an NFC antenna, and the NFC antenna is used for collecting radio frequency energy in received NFC signals;
The NFC communication module is used for receiving radio frequency energy transmitted by the NFC antenna and transmitting the radio frequency energy to the rectification circuit;
The rectification circuit is used for converting the radio frequency energy into first direct current electric energy and transmitting the first direct current electric energy to the voltage stabilizing circuit and the energy management circuit;
The voltage stabilizing circuit is used for carrying out voltage reduction and voltage stabilization on the first direct current energy, converting the first direct current energy into second direct current energy and supplying power to the NFC communication module and the energy management circuit;
the energy management circuit is used for transmitting the first direct current energy to the driving module and transmitting the first direct current energy to the energy storage module for charging when the first direct current energy is higher than a first voltage threshold value;
the driving module is used for driving the intelligent lock to execute locking and unlocking operations by using electric energy.
2. The smart lock circuit of claim 1, wherein the energy management circuit is further configured to cut off charging of the energy storage module when the energy storage module is below a first voltage threshold from which the NFC antenna is to collect electrical energy.
3. The smart lock circuit of claim 2, wherein the energy management circuit includes a charge switch electrically connected to the energy storage module, the energy management circuit further configured to control the charge switch to turn on and off.
4. The smart lock circuit of claim 3 wherein the charge switch further comprises a charge inhibit control terminal for forcibly turning off the charge switch.
5. The smart lock circuit of claim 3 wherein the energy management circuit comprises a first voltage comparator;
The two input ends of the first voltage comparator are respectively input with the voltage of the first direct current electric energy and the first voltage threshold value, the output end of the first voltage comparator is electrically connected with the charging switch, and the first voltage comparator is used for outputting a conducting signal to the charging switch when the voltage of the first direct current electric energy is higher than the first voltage threshold value;
The energy storage module is also used for discharging to the energy management circuit;
the energy management circuit is also used for transmitting the discharging electric energy of the energy storage module to the driving module.
6. The smart lock circuit of claim 5, wherein the energy management circuit further comprises a discharge switch, the energy storage module is electrically connected to the drive module through the discharge switch, and the energy management circuit is further configured to control on and off of the discharge switch.
7. The smart lock circuit of claim 6, wherein a response time of the charge switch is less than 10 μs and/or a response time of the discharge switch is less than 10 μs.
8. The smart lock circuit of claim 6 wherein the energy management circuit further comprises a second voltage comparator;
the two input ends of the second voltage comparator are respectively input with the energy storage voltage of the energy storage module and a second voltage threshold, the output end of the second voltage comparator is electrically connected with the discharge switch, and the second voltage comparator is used for outputting a power supply warning signal to the driving module through the discharge switch when the energy storage voltage of the energy storage module is lower than the second voltage threshold.
9. The smart lock circuit of claim 8 wherein the energy management circuit further comprises a third voltage comparator;
The two input ends of the third voltage comparator are respectively input with the energy storage voltage of the energy storage module and a third voltage threshold, the third voltage threshold is smaller than the second voltage threshold, and the third voltage comparator is used for outputting a turn-off signal to the discharge switch when the energy storage voltage of the energy storage module is lower than the third voltage threshold.
10. The smart lock circuit of claim 1, wherein the smart lock circuit further comprises a control module;
the control module is respectively in communication connection with the NFC communication module, the energy management circuit and the driving module;
the control module is used for carrying out data transmission with the NFC communication module;
The control module is also used for sending a control instruction to the driving module;
The voltage stabilizing circuit is electrically connected with the control module and supplies power to the control module through the second direct current electric energy.
11. The smart lock circuit of claim 10, wherein the control module is to perform user authentication based on the received NFC signal.
12. The smart lock circuit of claim 1, wherein the drive module comprises a drive axle;
the drive axle comprises a MOSFET or an IGBT.
13. The smart lock circuit of claim 1, wherein the NFC antenna comprises a separate energy antenna, a separate receive antenna, and a separate transmit antenna; the energy antenna is used for collecting electric energy in the received NFC signals;
the NFC communication module further comprises a demodulation module, a modulation module and an NFC controller, the receiving antenna is electrically connected with the demodulation module, the transmitting antenna is electrically connected with the modulation module, and the NFC controller is respectively electrically connected with the demodulation module and the modulation module;
The receiving antenna is used for receiving NFC signals transmitted by the NFC card reader and sending the NFC signals to the demodulation module, and the demodulation module demodulates the NFC signals and then transmits demodulated data to the NFC controller;
The NFC controller is used for transmitting data to be transmitted to the modulation module according to a preset format, and transmitting an NFC signal to the NFC card reader through the transmitting antenna after the data are modulated by the modulation module.
14. The smart lock circuit of claim 1, wherein the NFC antenna comprises a separate energy antenna and a separate communication antenna; the energy antenna is used for collecting electric energy in the received NFC signals;
The NFC communication module further comprises a demodulation module, a modulation module and an NFC controller, and the communication antenna is respectively and electrically connected with the demodulation module and the modulation module;
The communication antenna is used for receiving NFC signals transmitted by the NFC card reader and sending the NFC signals to the demodulation module, and the demodulation module demodulates the NFC signals and then transmits demodulated data to the NFC controller;
The NFC controller is used for transmitting data to be transmitted to the modulation module according to a preset format, and the NFC controller is used for transmitting NFC signals to the NFC card reader through the communication antenna after modulating the data by the modulation module.
15. The smart lock circuit of claim 10, wherein the NFC communication module further comprises a data interface; the data interface is in communication connection with the control module.
16. The smart lock circuit of claim 1, wherein the rectifying circuit comprises a diode rectifier bridge, a diode voltage drop of a diode in the diode rectifier bridge is less than 1V at an on current of 20mA, and/or the voltage stabilizing circuit comprises a linear voltage stabilizer or a switching voltage stabilizer, and an output voltage of the voltage stabilizing circuit ranges from 1.7V to 3.6V.
17. The smart lock circuit of claim 1, wherein the energy storage module comprises an energy storage capacitor; the capacitance value of the energy storage capacitor is 22 mu F-0.47F.
18. The smart lock circuit of claim 1, wherein the NFC communication module obtains at least 20mW of power.
19. A smart lock comprising the smart lock circuit of any one of claims 1-18; the intelligent lock also comprises an action mechanism and a lock core mechanism;
the driving module, the action mechanism and the lock core mechanism are connected with one another in sequence;
The driving module is used for driving the action mechanism to drive the lock cylinder mechanism to execute locking and unlocking operations.
20. The intelligent lock according to claim 19, wherein the actuating mechanism comprises a motor and a motor shaft fixedly arranged at one side of the motor, and threads are arranged on the motor shaft;
The motor is electrically connected with the driving module of the intelligent lock circuit and is used for converting electric energy provided by the driving module into kinetic energy to drive the motor shaft to rotate;
the lock core mechanism comprises a lock core seat and a lock core fixedly arranged on one side of the lock core seat;
The lock cylinder seat is provided with a first opening, and a nut matched with the thread on the motor shaft is arranged on the inner side of the first opening;
the motor shaft is connected with the lock cylinder seat through the first opening.
21. The smart lock of claim 20, further comprising a lock cylinder limiter;
the lock cylinder limiter is provided with a second opening, the lock cylinder is inserted into the lock cylinder limiter through the second opening, and the second opening is larger than the lock cylinder;
the lock cylinder limiter is used for limiting the rotation of the lock cylinder, ensuring that the lock cylinder performs linear motion along the direction of the motor shaft, and not applying resistance to the linear motion of the lock cylinder.
22. The smart lock of claim 21 wherein the diameter of the second aperture is 0.8mm to 3mm longer than the diameter of the lock cylinder.
23. The smart lock of claim 21, wherein the smart lock further comprises a base;
The motor and the lock cylinder limiter are both fixed on the base.
24. The smart lock of claim 23, wherein the smart lock further comprises a position sensor;
the position sensor comprises a first conductive contact and a second conductive contact which are fixedly arranged on the base, and a third conductive contact which is fixedly arranged on the lock core seat;
The first conductive contact, the second conductive contact and the third conductive contact are arranged along the direction of the motor shaft and are arranged on the same straight line;
the third conductive contact is arranged between the first conductive contact and the second conductive contact;
the third conductive contact moves along with the lock cylinder seat and is used for contacting with the first conductive contact or the second conductive contact to form a current loop;
The intelligent lock circuit obtains the position relation between the lock core seat and the lock core through the current loop.
25. The smart lock of claim 24, wherein the first conductive contact is closer to the motor than the second conductive contact;
when the first conductive contact is contacted with the third conductive contact, the intelligent lock is in a locking state;
and when the second conductive contact is contacted with the third conductive contact, the intelligent lock is in an unlocking state.
26. The smart lock of claim 20, wherein the motor comprises a dc stepper motor or a dc non-stepper motor.
27. The smart lock of claim 23, wherein the lock core holder, the base, and the lock core limiter are made of a metal material, a plastic material, and/or a wood material.
CN201710986603.7A 2017-10-20 2017-10-20 Intelligent lock circuit and intelligent lock Active CN109697768B (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CN201710986603.7A CN109697768B (en) 2017-10-20 2017-10-20 Intelligent lock circuit and intelligent lock
PCT/CN2018/111004 WO2019076367A1 (en) 2017-10-20 2018-10-19 Smart lock circuit and smart lock

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201710986603.7A CN109697768B (en) 2017-10-20 2017-10-20 Intelligent lock circuit and intelligent lock

Publications (2)

Publication Number Publication Date
CN109697768A CN109697768A (en) 2019-04-30
CN109697768B true CN109697768B (en) 2024-06-21

Family

ID=66225395

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201710986603.7A Active CN109697768B (en) 2017-10-20 2017-10-20 Intelligent lock circuit and intelligent lock

Country Status (1)

Country Link
CN (1) CN109697768B (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115512467B (en) * 2022-09-09 2023-05-23 硕能(上海)自动化科技有限公司 Unlocking power improvement method based on NFC electronic key authorization unlocking

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN202672873U (en) * 2012-03-21 2013-01-16 林明弟 Alarm anti-theft lock
CN105099527A (en) * 2015-09-08 2015-11-25 王清斌 Passive Near Field Communication (NFC) communication interface having independent energy receiving antenna
CN105788035A (en) * 2014-12-25 2016-07-20 北京同方微电子有限公司 With the passive intelligence lock that has NFC function card reader mode mobile communication
CN207264476U (en) * 2017-10-20 2018-04-20 南京启纬智芯微电子有限公司 Intelligent lock circuit and smart lock
CN207369033U (en) * 2017-10-20 2018-05-15 南京启纬智芯微电子有限公司 NFC interface with energy management functionality
CN109698713A (en) * 2017-10-20 2019-04-30 南京启纬智芯微电子有限公司 NFC interface with energy management functionality

Family Cites Families (30)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2748710B1 (en) * 1996-05-17 1998-06-26 Valeo Securite Habitacle MOTORIZED ANTI-THEFT DEVICE FOR STEERING A MOTOR VEHICLE COMPRISING AN IMPROVED SWITCH
JPH1018712A (en) * 1996-06-28 1998-01-20 Toyo Electric Mfg Co Ltd Door open/close device using linear motor
CN101095272A (en) * 2004-12-30 2007-12-26 摩托罗拉公司 Method and apparatus for near field communications
CN201113470Y (en) * 2007-09-26 2008-09-10 江苏中澳光伏能源科技有限公司 Automatically reset wind power and solar energy supply unit
CN201113472Y (en) * 2007-09-26 2008-09-10 江苏中澳光伏能源科技有限公司 Wind power and solar energy intelligent electricity supply unit
US8882933B2 (en) * 2008-06-02 2014-11-11 Miele & Cie. Kg Dishwasher having a device for opening the door in gaps
JP5222231B2 (en) * 2009-06-03 2013-06-26 株式会社ユーシン Door lock actuator
CN101826895A (en) * 2010-03-12 2010-09-08 东莞宇龙通信科技有限公司 NFC-based data acquisition method, NFC electronic terminal and system
CN102074058B (en) * 2010-05-11 2013-07-10 严志宏 Motor lock for unattended machine room and motor system thereof
CN102637261B (en) * 2012-04-11 2015-02-18 东莞市巨细信息科技有限公司 RFID (Radio Frequency Identification) electronic tag integrated with electrocardiosignal collecting circuit
CN103346538B (en) * 2013-07-24 2015-08-12 国家电网公司 A kind of short-circuit protection circuit for APF high-power IGBT
DE102013109620A1 (en) * 2013-09-04 2015-03-05 Miele & Cie. Kg Household appliance with automatic door opening mechanism
CN103475077B (en) * 2013-09-29 2016-01-20 国家电网公司 With the mobile phone wireless recharging base of data sending function and the described pedestal method to the transmission data of wireless charging mobile phone
CN104599352B (en) * 2013-10-31 2018-03-02 珠海优特电力科技股份有限公司 Intelligent lock core, lockset, blocking device, Intelligent locking system and its method of work
CN104660034A (en) * 2013-11-25 2015-05-27 成都市思码特科技有限公司 Switching stabilized voltage supply circuit of software test host
CN104113119A (en) * 2014-07-29 2014-10-22 Tcl通讯（宁波）有限公司 Charging unit for charging wireless wearable device with NFC (Near Field Communication) antenna
CN204087034U (en) * 2014-08-07 2015-01-07 广州海格通信集团股份有限公司 There is the Anti-surging power switch protection circuit of over-voltage protecting function
CN105720807B (en) * 2014-12-03 2018-05-29 万国半导体(开曼)股份有限公司 It is detained the method and device of voltage for detecting input voltage and releasing
TWM501467U (en) * 2015-02-13 2015-05-21 Taiwan Scratch Technology Company Ltd Unlocking device having external sensing for power supply
KR102405097B1 (en) * 2015-04-14 2022-06-07 삼성전자주식회사 Near field communication package and portable device including the same
CN106548540A (en) * 2015-09-23 2017-03-29 李玉德 A kind of NFC intelligent door locks
TWM516083U (en) * 2015-10-07 2016-01-21 Jsw Pacific Corp Lock wireless charging system
CN105303666A (en) * 2015-11-20 2016-02-03 国家电网公司 Electric control bluetooth office lock
CN105762867A (en) * 2016-01-27 2016-07-13 深圳市海云天投资控股有限公司 Wireless energy collection charging device used for mobile device
CN205400305U (en) * 2016-02-24 2016-07-27 深圳市新越微电子有限公司 Intelligent electronic lock
CN105897312B (en) * 2016-04-01 2019-04-02 王清斌 A kind of NFC label interface for energy acquisition and small size optimization
CN105868810B (en) * 2016-04-01 2019-07-16 王清斌 A kind of NFC reader interface optimized for energy acquisition and small sized antenna
CN105840002A (en) * 2016-04-07 2016-08-10 何志昂 Bicycle electronic lock
CN106836988A (en) * 2017-01-09 2017-06-13 云丁网络技术(北京)有限公司 A kind of intelligent door lock for realizing energy recovery
CN206466846U (en) * 2017-02-23 2017-09-05 无锡鸿廷科技有限公司 A kind of elevator information transfer module based on NFC mechanicss of communication

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN202672873U (en) * 2012-03-21 2013-01-16 林明弟 Alarm anti-theft lock
CN105788035A (en) * 2014-12-25 2016-07-20 北京同方微电子有限公司 With the passive intelligence lock that has NFC function card reader mode mobile communication
CN105099527A (en) * 2015-09-08 2015-11-25 王清斌 Passive Near Field Communication (NFC) communication interface having independent energy receiving antenna
CN207264476U (en) * 2017-10-20 2018-04-20 南京启纬智芯微电子有限公司 Intelligent lock circuit and smart lock
CN207369033U (en) * 2017-10-20 2018-05-15 南京启纬智芯微电子有限公司 NFC interface with energy management functionality
CN109698713A (en) * 2017-10-20 2019-04-30 南京启纬智芯微电子有限公司 NFC interface with energy management functionality

Also Published As

Publication number Publication date
CN109697768A (en) 2019-04-30

Similar Documents

Publication Publication Date Title
JP2016178864A (en) Wireless charging system
US11394318B2 (en) Power management circuit and power management method for triboelectric nanogenerator, and energy system
CN103809492A (en) One-key type multifunctional control circuit and wearable electronic product
DE102011076963A1 (en) Battery pack with a separate power supply device for a wireless communication device of the battery pack
CN109360303A (en) A kind of NFC power supply method for unlocking of electronic lock
CN219329755U (en) Passive NFC chip, passive NFC display device and passive NFC system
WO2019076366A1 (en) Nfc interface with energy management function
CN218124384U (en) Power supply circuit and electronic equipment
CN109697768B (en) Intelligent lock circuit and intelligent lock
CN204590730U (en) The berth lock of a kind of available smart mobile phone and remote control device
CN207264476U (en) Intelligent lock circuit and smart lock
CN212572199U (en) Wireless power supply device, intelligent lock system and intelligent door
CN220022416U (en) Circuit and electronic equipment get
CN117543851A (en) Multi-path stored passive device and control method thereof
CN219611786U (en) Passive NFC chip and passive electronic equipment
CN219437163U (en) Passive NFC chip and passive electronic equipment
CN107086642B (en) Charging device and charger
CN203522344U (en) Handset system capable of wirelessly supplying power outwards
WO2019076367A1 (en) Smart lock circuit and smart lock
CN108729758A (en) It is a kind of can wireless charging intelligent door lock
CN205595905U (en) Difunctional adjustable wireless power transmission device
CN111711255B (en) Method for reducing energy consumption of semi-active RFID equipment
CN209963819U (en) Intelligent door lock power supply circuit and intelligent door lock
CN219611785U (en) Passive NFC chip, passive NFC device and passive NFC system
CN106160125A (en) A kind of electromagentic resonance wireless charging device

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
TA01 Transfer of patent application right
TA01 Transfer of patent application right

Effective date of registration: 20210507

Address after: Room 3001-47, Tianren building, 188 Liyi Road, ningwei street, Xiaoshan District, Hangzhou City, Zhejiang Province

Applicant after: Hangzhou Qiwei Technology Co.,Ltd.

Address before: 211800 C418-419 building, hatching Eagle building, 99 Tuanjie Road, research park, Jiangbei new district, Nanjing, Jiangsu

Applicant before: NAN JING FUSENS MICROELECTRONICS Co.,Ltd.

GR01 Patent grant
GR01 Patent grant