CN202677498U - Intelligent mobile phone gate lock - Google Patents

Abstract

The utility model discloses a smart phone door lock, which includes a mechanical lock core, and is characterized in that: the mechanical lock core is connected to an output shaft of a motor, and the motor is connected with a control circuit, and the control circuit is connected with a wireless bluetooth of a mobile phone; The control circuit is provided with a central processing unit, a motor drive circuit and a power supply circuit, wherein the central processing unit is provided with a radio frequency terminal, and the radio frequency terminal is connected with a radio frequency antenna. Its remarkable effect is: it can realize the intelligent management of the access control system, and can identify the legitimacy of the person who opens the door.

Description

smart phone door lock

technical field

The utility model belongs to a door control device, in particular to a smart phone door lock.

Background technique

Most of the current door lock control technologies use the traditional mechanical method to open the door, which is easy to be opened by thieves. Although the development of anti-theft door technology has improved the safety and reliability of the door lock, radio frequency technology has realized the automatic door lock. Control, but still unable to realize the intelligent management of access control.

The disadvantages of the prior art are: the intelligent management of the access control system cannot be realized, and the legitimacy of the person who opens the door cannot be identified.

Utility model content

The purpose of the utility model is to provide a smart phone door lock, which can realize the intelligent management of the access control system and can identify the legitimacy of the person opening the door.

In order to achieve the above purpose, the utility model describes a smart phone door lock, including a mechanical lock core, the key is that the mechanical lock core is connected to the output shaft of the motor, and the motor is connected with a control circuit, and the control circuit is connected to the mobile phone. Wireless Bluetooth connection;

The control circuit is provided with a central processing unit, a motor drive circuit and a power supply circuit, wherein the central processing unit is provided with a radio frequency terminal, and the radio frequency terminal is connected with a radio frequency antenna to connect with the wireless bluetooth of the mobile phone;

The central processing unit is provided with a locking end and an unlocking end connected to the motor drive circuit.

The central processing unit is also connected with a wake-up circuit, the wake-up circuit includes a wake-up button, one end of the wake-up button is connected to a high level, the other end is connected to the first anode of a common cathode diode, and the second anode of the common cathode diode is connected to the The wake-up terminal of the central processing unit, the cathode of the common-cathode diode is connected to the ground after the pull-down resistor, the cathode of the common-cathode diode is also connected to the base of the sixth triode, the emitter of the sixth triode is grounded, and the sixth triode is grounded. The collector of the triode is connected to a high level after the pull-up resistor, and the collector of the sixth triode is also connected to the power supply circuit.

Manually trigger the wake-up button installed on the door, and the central processing unit communicates with the owner’s mobile phone through the radio frequency antenna. Close the door to realize the intelligent control of the access control system.

The power supply circuit is provided with a third switching tube, the gate of the third switching tube is connected to the collector of the sixth triode, the source of the third switching tube is connected to a high level, and the drain is connected to the integrated regulator The input terminal of the chip, the output terminal of the integrated voltage regulator chip outputs 3V level.

The power supply circuit can provide the corresponding safe power supply according to the requirements of the load.

The motor drive circuit is composed of a locking circuit and an unlocking circuit;

The locking circuit includes a PNP-type second switch tube and an NPN-type fifth switch tube, wherein the source of the second switch tube is connected to a high level, the drain is connected to the positive terminal of the motor, and the second switch tube's The grid is connected to the cathode of the second diode, the anode of the second diode is connected to the locking terminal of the central processing unit, and the anode of the second diode is also connected to the grid of the fifth switching tube, The source of the fifth switch tube is grounded, and the drain of the fifth switch tube is connected to the drain of the second switch tube;

The unlocking circuit includes a PNP-type first switch tube and an NPN-type fourth switch tube, wherein the source of the first switch tube is connected to a high level, the drain is connected to the negative terminal of the motor, and the gate of the first switch tube is connected to a high level. The pole is connected to the cathode of the first diode, the anode of the first diode is connected to the unlocking terminal of the central processing unit, and the anode of the first diode is also connected to the grid of the fourth switching tube. The sources of the four switching tubes are grounded, and the drain of the fourth switching tube is connected to the drain of the first switching tube;

The drain of the second switching transistor is connected to the grid of the first switching transistor, and the drain of the first switching transistor is connected to the grid of the second switching transistor.

The locking circuit and the unlocking circuit are interlocked.

The indicating end of the central processing unit is connected with a light emitting diode.

The remarkable effect of the utility model is that a smart phone door lock is provided, which can realize the intelligent management of the access control system and can identify the legitimacy of the person opening the door.

Description of drawings

Fig. 1 is a circuit structure diagram of a controlled power supply circuit;

Fig. 2 is the work flowchart of central processing unit;

Figure 3 is the working flow chart of the mobile phone.

Detailed ways

Below in conjunction with accompanying drawing and specific embodiment the utility model is described in further detail.

As shown in Figure 1: a smart phone door lock, including a mechanical lock core, wherein the mechanical lock core is connected to the output shaft of the motor, the motor is connected to a control circuit, and the control circuit is connected to the wireless Bluetooth of the mobile phone;

The control circuit is provided with a central processing unit 1, a motor drive circuit 2 and a power supply circuit 3, wherein the central processing unit 1 is provided with a radio frequency terminal PIO11, and the radio frequency terminal PIO11 is connected with a radio frequency antenna to connect with the wireless bluetooth of the mobile phone;

The central processing unit 1 is provided with a locking terminal LOCK and an unlocking terminal UNLOCK connected to the motor drive circuit 2 .

The central processing unit 1 is also connected with a wake-up circuit, the wake-up circuit includes a wake-up button WAKEUP, one end of the wake-up button WAKEUP is connected to a high level, and the other end is connected to the first anode of the common-cathode diode D5, and the first anode of the common-cathode diode D5 The two anodes are connected to the wake-up terminal HOLD of the central processing unit 1, the cathode of the common-cathode diode D5 is connected to the ground after the pull-down resistor R12, and the cathode of the common-cathode diode D5 is also connected to the base of the sixth triode Q6. The emitter of the transistor Q6 is grounded, the collector of the sixth transistor Q6 is connected to a high level after the pull-up resistor R10 , and the collector of the sixth transistor Q6 is also connected to the power circuit 3 .

The power circuit 3 is provided with a third switching tube Q3, the gate of the third switching tube Q3 is connected to the collector of the sixth triode Q6, the source of the third switching tube Q3 is connected to a high level, and the drain of the third switching tube Q3 is connected to a high level. The pole is connected to the input terminal of the integrated voltage regulator chip, and the output terminal of the integrated voltage regulator chip outputs 3V level.

The motor drive circuit 2 is composed of a locking circuit and an unlocking circuit;

The locking circuit includes a PNP-type second switch tube Q2 and an NPN-type fifth switch tube Q5, wherein the source of the second switch tube Q2 is connected to a high level, the drain is connected to the positive terminal of the motor, and the second The gate of the switching tube Q2 is connected to the cathode of the second diode D2, the anode of the second diode D2 is connected to the locking terminal LOCK of the central processing unit 1, and the anode of the second diode D2 is also connected to the The gate of the fifth switching tube Q5 is described, the source of the fifth switching tube Q5 is grounded, and the drain of the fifth switching tube Q5 is connected to the drain of the second switching tube Q2;

The unlocking circuit includes a PNP-type first switching tube Q1 and an NPN-type fourth switching tube Q4, wherein the source of the first switching tube Q1 is connected to a high level, the drain is connected to the negative terminal of the motor, and the first switch The gate of the tube Q1 is connected to the cathode of the first diode D1, the anode of the first diode D1 is connected to the unlock terminal UNLOCK of the central processing unit 1, and the anode of the first diode D1 is also connected to the first The gate of the four switching transistors Q4, the source of the fourth switching transistor Q4 is grounded, and the drain of the fourth switching transistor Q4 is connected to the drain of the first switching transistor Q1;

The drain of the second switching transistor Q2 is connected to the gate of the first switching transistor Q1, and the drain of the first switching transistor Q1 is connected to the gate of the second switching transistor Q2.

As shown in Figure 2: the workflow of the central processing unit 1 is:

is dormant;

Receive the physical wake-up signal from the wake-up button WAKEUP;

Transmit Bluetooth access control request signal;

Determine whether the set waiting time is reached;

If the waiting time is reached, then return to the dormant state;

If the waiting time is not reached, the bluetooth judges whether there is a mobile phone command signal;

If there is no mobile phone instruction signal, then return the request signal for transmitting bluetooth access control;

If there is a command signal from the mobile phone, it is judged whether the Bluetooth handshake is successful;

If the bluetooth does not shake hands successfully, then return the transmission bluetooth access control request signal;

If the bluetooth handshake succeeds, an instruction to open the door is sent to drive the motor to open the door.

As shown in Figure 3: the workflow of the mobile phone is:

Start the Bluetooth function of the mobile phone;

Bluetooth judges whether there is an access control request signal;

If there is no access control request signal, return to Bluetooth to continue to judge whether there is an access control request signal;

If there is an access control request signal, the mobile phone command signal is transmitted;

Bluetooth judges whether the handshake is successful;

If the Bluetooth handshake is not successful, then return to transmit the mobile phone command signal;

If the bluetooth handshake succeeds, then send out the message of successful opening of the door;

Wait for the command to turn off Bluetooth.

The indicator terminal of the central processing unit 1 is connected with a light emitting diode LED1. Light-emitting diode LED1 is used for prompting door opening information.

Claims (5)

1. A smart phone door lock, comprising a mechanical lock core, characterized in that: the mechanical lock core is connected on the output shaft of the motor, the motor is connected with a control circuit, and the control circuit is connected with the wireless bluetooth of the mobile phone; The control circuit is provided with a central processing unit (1), a motor drive circuit (2) and a power supply circuit (3), wherein the central processing unit (1) is provided with a radio frequency terminal (PIO11), and the radio frequency terminal (PIO11) is connected with a radio frequency The antenna is connected to the mobile phone via wireless bluetooth; The central processing unit (1) is provided with a locking terminal (LOCK) and an unlocking terminal (UNLOCK) connected to the motor drive circuit (2). 2. Smart phone door lock according to claim 1, characterized in that: the central processing unit (1) is also connected with a wake-up circuit, the wake-up circuit includes a wake-up button (WAKEUP), and one end of the wake-up button (WAKEUP) is connected to High level, the other end is connected to the first anode of the common cathode diode (D5), the second anode of the common cathode diode (D5) is connected to the wake-up terminal (HOLD) of the central processing unit (1), the common cathode diode ( The cathode of D5) is connected to the ground after the cathode string pull-down resistor (R12), and the cathode of the common cathode diode (D5) is also connected to the base of the sixth triode (Q6), and the emitter of the sixth triode (Q6) is grounded. The collector of the sixth triode (Q6) is connected to a high level behind the pull-up resistor (R10), and the collector of the sixth triode (Q6) is also connected to the power supply circuit (3). 3. The smart phone door lock according to claim 2, characterized in that: the power supply circuit (3) is provided with a third switching tube (Q3), and the gate of the third switching tube (Q3) is connected to the sixth The collector of the transistor (Q6), the source of the third switching tube (Q3) are connected to high level, the drain is connected to the input terminal of the integrated voltage regulator chip, and the output terminal of the integrated voltage regulator chip outputs 3V level. 4. The smart phone door lock according to claim 1, characterized in that: the motor drive circuit (2) is composed of a locking circuit and an unlocking circuit; The locking circuit includes a PNP-type second switch tube (Q2) and an NPN-type fifth switch tube (Q5), wherein the source of the second switch tube (Q2) is connected to a high level, and the drain is connected to the motor The positive terminal of the second switching tube (Q2) is connected to the cathode of the second diode (D2), and the anode of the second diode (D2) is connected to the locking terminal of the central processing unit (1). (LOCK), the anode of the second diode (D2) is also connected to the grid of the fifth switching tube (Q5), the source of the fifth switching tube (Q5) is grounded, and the fifth switching tube (Q5) ) is connected to the drain of the second switching tube (Q2); The unlocking circuit includes a PNP-type first switching tube (Q1) and an NPN-type fourth switching tube (Q4), wherein the source of the first switching tube (Q1) is connected to a high level, and the drain is connected to the motor's Negative terminal, the gate of the first switching tube (Q1) is connected to the cathode of the first diode (D1), and the anode of the first diode (D1) is connected to the unlock terminal (UNLOCK) of the central processing unit (1). ), the anode of the first diode (D1) is also connected to the grid of the fourth switching tube (Q4), the source of the fourth switching tube (Q4) is grounded, and the fourth switching tube (Q4) The drain is connected to the drain of the first switching tube (Q1); The drain of the second switching transistor (Q2) is connected to the gate of the first switching transistor (Q1), and the drain of the first switching transistor (Q1) is connected to the gate of the second switching transistor (Q2). pole. 5. The smart phone door lock according to claim 1, characterized in that: the indicating end of the central processing unit (1) is connected with a light emitting diode (LED1).

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