Electronic lock control circuit and electronic lock

Abstract

The utility model discloses an electronic lock control circuit and an electronic lock with the electronic lock control circuit, and the electronic lock control circuit comprises a power supply module, a control module, a card reading module, a wireless communication module, a buzzer module, a microswitch and a driving module used for driving the electronic lock, the power supply module supplies power to the control module, the card reading module, the wireless communication module, the buzzer module, the microswitch and the driving module, the control module is respectively connected with the card reading module, the buzzer module, the driving module, the wireless communication module and the microswitch, when the electronic lock is damaged, the microswitch is triggered, and the wireless communication module adopts 433MHz frequency band communication. The power consumption of the electronic lock control circuit can be reduced, so that the power consumption of the electronic lock is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to electronic lock technical field, especially electronic lock control circuit and electronic lock. BACKGROUND

[0002] The intelligent door lock card swiping module generally adopts passive RFID (Radio Frequency Identification, wireless radio frequency identification) technology, which automatically identifies IC card and obtains relevant data in the card through radio frequency signals, and then sends the data into a management system for authentication to determine whether it is legal and has the right to open the door lock. In the related art, 2.4GHz networking is used for management, but this method has high power consumption and complicated networking operation. SUMMARY

[0003] The utility model discloses at least one of the technical problems existing in the prior art. To this end, the utility model provides an electronic lock control circuit and an electronic lock, which can reduce the power consumption of the electronic lock control circuit and further reduce the power consumption of the electronic lock.

[0004] The utility model further provides an electronic lock with the above-mentioned electronic lock control circuit.

[0005] According to the electronic lock control circuit of the first aspect of the utility model, the electronic lock control circuit is applied to an electronic lock and is installed inside the electronic lock. The electronic lock control circuit includes a power supply module, a control module, a card reading module, a wireless communication module, a buzzer module, a micro switch and a driving module for driving the electronic lock. The power supply module supplies power to the control module, the card reading module, the wireless communication module, the buzzer module, the micro switch and the driving module. The control module is connected to the card reading module, the buzzer module, the driving module, the wireless communication module and the micro switch. When the electronic lock is damaged, the micro switch is triggered. The wireless communication module uses 433MHz frequency band communication.

[0006] According to the electronic lock control circuit of the utility model, the following advantages are achieved: when a user places an IC card in the card reading module, the control module can obtain user information from the card reading module and then send the information to a management system for verification through the wireless communication module. If the verification is correct, the driving module is controlled to open the electronic lock. The wireless communication module uses 433MHz frequency band communication, which can effectively reduce the power consumption of the electronic lock control circuit and further reduce the power consumption of the electronic lock compared with the technical solution of 2.4GHz networking. In addition, the micro switch can effectively determine whether the electronic lock is damaged.

[0007] According to some embodiments of the utility model, the card reading module includes reading chip, filter circuit, resonant circuit and antenna, the first connecting end of reading chip is connected with control module, the second connecting end of reading chip is connected with one end of filter circuit, the other end of filter circuit is connected with one end of resonant circuit, the other end of resonant circuit is connected with antenna.

[0008] According to some embodiments of the utility model, the buzzer module includes passive buzzer, first triode and diode, the negative electrode end of diode and the first end of passive buzzer are connected with power module respectively, the positive electrode end of diode and the second end of passive buzzer are connected with the collector of triode respectively, the base of triode is connected with control module, the emitter of triode is grounded.

[0009] According to some embodiments of the utility model, the driving module includes driving chip and driving motor, the input end of driving chip is connected with control module, and the output end of driving chip is connected with driving motor.

[0010] According to some embodiments of the utility model, the electronic lock control circuit further includes an indicator light module, the indicator light module includes a first light emitting diode and a second light emitting diode, the negative electrode end of the first light emitting diode is connected with the control module, the positive electrode end of the first light emitting diode is connected with the power module, the negative electrode end of the second light emitting diode is connected with the control module, and the positive electrode end of the second light emitting diode is connected with the power module.

[0011] According to some embodiments of the utility model, the power module includes a step-down chip, the input end of the step-down chip is connected with an external power supply, and the output end of the step-down chip is connected with the control module, the card reading module, the wireless communication module, the buzzer module, the micro switch and the driving module respectively.

[0012] According to some embodiments of the utility model, the electronic lock control circuit further includes a voltage detection module, the voltage detection module includes a first resistor, a second resistor and a first capacitor, the first resistor and the second resistor are connected in series to form a first branch, one end of the first branch is connected with the external power supply, the other end of the first branch is grounded, the control module is connected between the first connecting point of the first resistor and the second resistor, and one end of the first capacitor is connected between the first connecting point and the control module.

[0013] According to some embodiments of the utility model, the wireless communication module includes a wireless communication chip and a signal transmitter, an input end of the wireless communication chip is connected with the control module, and an output end of the wireless communication chip is connected with the signal transmitter.

[0014] According to some embodiments of the utility model, the electronic lock control circuit further includes a data storage module, the data storage module includes a data storage chip and a second triode, a base of the second triode is connected with the control module, a collector of the second triode is connected with the power module, and an emitter of the second triode is connected with the data storage chip.

[0015] According to the electronic lock of the second aspect embodiment of the utility model, the electronic lock control circuit of the first aspect embodiment is included.

[0016] According to the electronic lock of the utility model embodiment, at least has following beneficial effect: when the user is with IC card to read card module, the control module can read card module obtains user information, then sends information to management system through wireless communication module and verifies, if verifying is correct, then control drive module opens electronic lock, wherein, wireless communication module adopts 433MHz frequency band communication, compared with the technical scheme of adopting 2.4GHz networking, can effectively reduce the power consumption of electronic lock control circuit, and then reduce the power consumption of electronic lock, in addition, through the micro switch of setting, electronic lock can also be effectively judged whether being destroyed.

[0017] Additional aspects and advantages of the utility model will be partially given in the following description, some will become obvious from the following description, or be understood through the practice of the utility model. BRIEF DESCRIPTION OF DRAWINGS

[0018] The utility model will be further explained in combination with the drawings and examples, wherein:

[0019] Figure 1 The structure schematic diagram of electronic lock control circuit provided for the embodiment of the application is shown in the figure;

[0020] Figure 2 The circuit diagram of read card module of electronic lock control circuit provided for the embodiment of the application is shown in the figure;

[0021] Figure 3 The circuit diagram of buzzer module of electronic lock control circuit provided for the embodiment of the application is shown in the figure;

[0022] Figure 4 The circuit diagram of drive module of electronic lock control circuit provided for the embodiment of the application is shown in the figure;

[0023] Figure 5 The circuit diagram of indicating lamp module of electronic lock control circuit provided for the embodiment of the application is shown in the figure;

[0024] Figure 6 The circuit diagram of the voltage detection module of the electronic lock control circuit provided by the embodiment of the application is shown in the following figure;

[0025] Figure 7 The circuit diagram of the data storage module of the electronic lock control circuit provided by the embodiment of the application is shown in the following figure;

[0026] Figure 8 The circuit diagram of the control module of the electronic lock control circuit provided by the embodiment of the application is shown in the following figure. DETAILED DESCRIPTION

[0027] The embodiments of the present application are described in detail below, examples of which are shown in the drawings, wherein the same or similar notations represent the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary, only for explaining the present application, and cannot be understood as a limitation of the present application.

[0028] In the description of the present application, it should be understood that, in relation to the orientation description, for example, the orientation or position relationship indicated by the upper, lower, front, rear, left, right, etc. is based on the orientation or position relationship shown in the drawings, and is only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as a limitation of the present application.

[0029] In the description of the present application, the meaning of several is one or more, and the meaning of multiple is two or more, greater than, less than, more than, etc. are understood as not including the number, above, below, etc. are understood as including the number. If it is described as first, second, only for the purpose of distinguishing technical features, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features or the sequence of indicated technical features.

[0030] In the description of the present application, unless otherwise explicitly limited, the words such as setting, installing, connecting, etc. should be understood in a broad sense, and the person skilled in the art can reasonably determine the specific meaning of the above words in the present application according to the specific content of the technical solution.

[0031] Referring to Figure 1 and Figure 8 , Figure 1The structural schematic diagram of the electronic lock control circuit provided by the embodiment of the present application is shown in FIG. 1. It can be understood that the electronic lock control circuit comprises a power module, a control module U1, a card reading module, a wireless communication module, a buzzer module, a micro switch, an indicator light module, a voltage detection module, a data storage module, and a driving module for driving the electronic lock switch. The power module provides the working voltage required for the working of the control module U1, the card reading module, the wireless communication module, the buzzer module, the micro switch, the indicator light module, the data storage module, and the driving module. Among them, the wireless communication module adopts a 433 MHz frequency band to send information to the management system for verification. Compared with the technical solution of adopting a 2.4 GHz network, the power consumption of the electronic lock control circuit can be effectively reduced, and the power consumption of the electronic lock can be further reduced.

[0032] It should be noted that when the user places the IC card in the card reading module, the control module U1 obtains the user's information through the card reading module, and then sends the information to the management system for verification through the wireless communication module. If the verification is correct, the electronic lock is opened through the driving module. The buzzer module and the indicator light module can emit different sounds and lights according to different states. The micro switch is installed in the electronic lock. When the electronic lock is externally damaged, the micro switch is triggered to send a level signal to the control module U1, so that the control module U1 obtains the information that the electronic lock is damaged. Then the control module U1 can control the buzzer module to emit an alarm sound and the indicator light module to emit a flashing red light.

[0033] It should be noted that the power module comprises a step-down chip, the input end of the step-down chip is connected with an external power supply, and the output end of the step-down chip is connected with the control module U1, the card reading module, the wireless communication module, the buzzer module, the micro switch, and the driving module respectively. Among them, when the electronic lock is internally provided with a battery box, the external power supply can be a battery in the battery box. In addition, the power module supplies power to the control module U1, the card reading module, the wireless communication module, the buzzer module, the micro switch, and the driving module through the Vbat and +3.3V ports.

[0034] It should be noted that the wireless communication module comprises a wireless communication chip and a signal transmitter, the input end of the wireless communication chip is connected with the control module U1, and the output end of the wireless communication chip is connected with the signal transmitter. Among them, the model of the wireless communication chip is CC1101.

[0035] Reference Figure 2It can be understood that the card reading module includes a card reading chip U4, a filter circuit, a resonant circuit and an antenna, the resonant circuit includes a first inductor L1, a second inductor L2, a second capacitor C2 and a third capacitor C3, the filter circuit includes a fourth capacitor C4, a fifth capacitor C5, a sixth capacitor C6 and a seventh capacitor C7, one end of the card reading chip U4 is connected with the PB14, PB15 and PB13 ports of the control module U1, the TX1 end of the card reading chip U4 is connected with the first end of the second inductor L2, the second end of the second inductor L2 is connected with the first end of the third capacitor C3 and the first end of the sixth capacitor C6 respectively, the second end of the sixth capacitor C6 is connected with the first end of the seventh capacitor C7 and the first end of the antenna respectively, the TX2 end of the card reading chip U4 is connected with the first end of the first inductor L1, the second end of the first inductor L1 is connected with the first end of the second capacitor C2 and the first end of the fourth capacitor C4 respectively, the second end of the fourth capacitor C4 is connected with the first end of the fifth capacitor C5 and the second end of the antenna respectively. Wherein, the second end of the antenna is also connected with the RX end of the card reading chip U4, the second end of the second capacitor C2, the second end of the fifth capacitor C5, the second end of the third capacitor C3 and the second end of the seventh capacitor C7 are all grounded.

[0036] With reference to Figure 3 It can be understood that the buzzer module includes a passive buzzer BEEP1, a first triode Q1, a third resistor R3, a fourth resistor R4, a fifth resistor R5, an eighth capacitor C8 and a diode D3, the power module is connected with the first end of the eighth capacitor C8 and the first end of the third resistor R3 respectively, the second end of the third resistor R3 is connected with the negative electrode end of the diode D3 and the first end of the passive buzzer BEEP1 respectively, the collector of the first triode Q1 is connected with the positive electrode end of the diode D3 and the second end of the passive buzzer BEEP1 respectively, the base of the first triode Q1 is connected with the first end of the fifth resistor R5 and the first end of the fourth resistor R4 respectively, the first end of the fifth resistor R5 is connected with the PC12 port of the control module U1, the second end of the fourth resistor R4 is grounded with the emitter of the first triode Q1, the control module U1 outputs a high signal or a low signal through the PC12 port to control the conduction of the first triode Q1, thereby controlling the working state of the passive buzzer BEEP1.

[0037] With reference to Figure 4 It can be understood that the driving module includes a driving chip U3 and a driving motor, the input end of the driving chip U3 is connected with the PB11 and PB10 ports of the control module U1, the output end of the driving chip U3 is connected with the driving motor, wherein the driving motor can be connected with the lock tongue of the electronic lock to drive the extension and retraction of the lock tongue. Wherein, the model of the driving chip U3 is L9110S.

[0038] With reference to Figure 5It can be understood that the indicating light module comprises the first light emitting diode D1, the second light emitting diode D2, the sixth resistor R6 and the seventh resistor R7, the positive terminal of the first light emitting diode D1 is connected with the power module through the sixth resistor R6, the negative terminal of the first light emitting diode D1 is connected with the PC2 port of the control module U1, the positive terminal of the second light emitting diode D2 is connected with the power module through the seventh resistor R7, and the negative terminal of the second light emitting diode D2 is connected with the PC1 port of the control module U1.

[0039] With reference to Figure 6 It can be understood that the voltage detection module comprises the first resistor R1, the second resistor R2 and the first capacitor C1, the first resistor R1 and the second resistor R2 are connected in series to form a first branch, one end of the first branch is connected with an external power supply, the other end of the first branch is grounded, the PC3 port of the control module U1 is connected between the first connection point of the first resistor R1 and the second resistor R2, and one end of the first capacitor C1 is connected between the first connection point and the PC3 port of the control module U1.

[0040] With reference to Figure 7 It can be understood that the data storage module comprises the data storage chip U2, the second triode Q2 and the eighth resistor R8, the base of the second triode Q2 is connected with the PC4 port of the control module U1 through the eighth resistor R8, the collector of the second triode Q2 is connected with the power module, the emitter of the second triode Q2 is connected with the power input end of the data storage chip U2, and the data storage chip U2 is also connected with the PA4, PA5, PA6 and PA7 ports of the control module U1.

[0041] It should be noted that the user information can also be stored through the data storage chip U2, and the control module U1 can acquire the user information through the data storage chip U2 in the case that the communication is not normal, so as to judge whether the recorded user information in the IC card is correct, and then control the working state of the driving motor.

[0042] The embodiments of the utility model are described in detail above combined with the drawings, but the utility model is not limited to the above-mentioned embodiments, and various changes can be made within the knowledge range possessed by the ordinary skilled in the art without departing from the purpose of the utility model.

Claims

1. An electronic lock control circuit, characterized by, The application is applied to an electronic lock, the electronic lock control circuit is installed inside the electronic lock, the electronic lock control circuit includes a power module, a control module, a card reading module, a wireless communication module, a buzzer module, a micro switch and a driving module for driving the electronic lock, the power module supplies power for the control module, the card reading module, the wireless communication module, the buzzer module, the micro switch and the driving module, the control module is connected with the card reading module, the buzzer module, the driving module, the wireless communication module and the micro switch respectively, wherein the micro switch is triggered when the electronic lock is damaged, and the wireless communication module communicates by using a 433MHz frequency band. The card reading module includes a reading chip, a filter circuit, a resonance circuit and an antenna, a first connection end of the reading chip is connected with the control module, a second connection end of the reading chip is connected with one end of the filter circuit, the other end of the filter circuit is connected with one end of the resonance circuit, and the other end of the resonance circuit is connected with the antenna.

2. The electronic lock control circuit of claim 1, wherein, The buzzer module includes a passive buzzer, a first triode and a diode, the power module is respectively connected with a negative electrode end of the diode and a first end of the passive buzzer, a collector of the triode is respectively connected with a positive electrode end of the diode and a second end of the passive buzzer, a base of the triode is connected with the control module, and an emitter of the triode is grounded.

3. The electronic lock control circuit of claim 1, wherein, The driving module includes a driving chip and a driving motor, an input end of the driving chip is connected with the control module, and an output end of the driving chip is connected with the driving motor.

4. The electronic lock control circuit of claim 1, wherein, The electronic lock control circuit further includes an indicator light module, the indicator light module includes a first light emitting diode and a second light emitting diode, a negative electrode end of the first light emitting diode is connected with the control module, a positive electrode end of the first light emitting diode is connected with the power module, a negative electrode end of the second light emitting diode is connected with the control module, and a positive electrode end of the second light emitting diode is connected with the power module.

5. The electronic lock control circuit of claim 1, wherein, The power module includes a step-down chip, an input end of the step-down chip is connected with an external power supply, and output ends of the step-down chip are respectively connected with the control module, the card reading module, the wireless communication module, the buzzer module, the micro switch and the driving module.

6. The electronic lock control circuit of claim 1, wherein, The electronic lock control circuit further includes a voltage detection module, the voltage detection module includes a first resistor, a second resistor and a first capacitor, the first resistor and the second resistor are connected in series to form a first branch, one end of the first branch is connected with the external power supply, the other end of the first branch is grounded, the control module is connected between a first connection point of the first resistor and the second resistor, and one end of the first capacitor is connected between the first connection point and the control module.

7. The electronic lock control circuit of claim 6, wherein, The wireless communication module includes a wireless communication chip and a signal transmitter, an input end of the wireless communication chip is connected with the control module, and an output end of the wireless communication chip is connected with the signal transmitter.

8. The electronic lock control circuit of claim 1, wherein, ​ 9. The electronic lock control circuit of claim 1, wherein, The electronic lock control circuit further comprises a data storage module, the data storage module comprises a data storage chip and a second triode, the base of the second triode is connected with the control module, the collector of the second triode is connected with the power module, and the emitter of the second triode is connected with the data storage chip.

10. An electronic lock characterized by The electronic lock control circuit comprises the electronic lock control circuit as claimed in any one of claims 1 to 9.

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