CN212271845U

CN212271845U - Door magnetic control device for smart home

Info

Publication number: CN212271845U
Application number: CN202020481416.0U
Authority: CN
Inventors: 郑强慧; 林一飞; 周海锋
Original assignee: Guangzhou Feichuang Jiayou Technology Co ltd
Current assignee: Guangzhou Feichuang Jiayou Technology Co ltd
Priority date: 2020-04-05
Filing date: 2020-04-05
Publication date: 2021-01-01
Anticipated expiration: 2030-04-05

Abstract

The utility model discloses a door magnetic control device for intelligent house, include: the door magnetic chip comprises a door magnetic chip and a power supply module, wherein a signal input end and a signal output end are arranged on the door magnetic chip, a mode input interface, a magnetometer sensing circuit, an accelerometer sensing circuit and a reset circuit are electrically connected to an interface of the signal input end, an LED display circuit and a state output interface are electrically connected to an interface of the signal output end, the power supply module is respectively connected with the door magnetic chip, the magnetometer sensing circuit, the accelerometer sensing circuit, the reset circuit and the LED display circuit and supplies power to the power supply module, the magnetometer sensing circuit is composed of a magnetometer chip U2, a capacitor C2, a capacitor C4 and a capacitor C5, and the accelerometer sensing circuit is composed of an accelerometer chip U3 and a capacitor C3. The utility model discloses possess simple structure, adopt embedded the mode of installing inside the lock body, interference immunity is strong, and the accuracy is high, low power dissipation, and the recognition rate is high.

Description

Door magnetic control device for smart home

Technical Field

The utility model relates to a door magnetic control technical field specifically is a door magnetic control device for intelligent house.

Background

The intelligent home is characterized in that a home is used as a platform, facilities related to home life are integrated by utilizing a comprehensive wiring technology, a network communication technology, a safety precaution technology, an automatic control technology and an audio and video technology, an efficient management system of home facilities and family schedule affairs is constructed, home safety, convenience, comfortableness and artistry are improved, and an environment-friendly and energy-saving living environment is realized.

The door magnetic control device for the door lock in the current market generally adopts the door magnetic control device of a single magnetic force sensing system to detect the door locking position, but the door magnetic control device of the single magnetic force sensing system is interfered by an environmental magnetic field during working, so that the problem of overlarge position judgment deviation is easily caused, and the door magnetic control device cannot be normally put into use; the market also has a scheme of realizing automatic door locking through an external electromagnet mechanical mechanism, however, the additional installation of the external mechanism is not suitable for the field of household door locks; in the market, a scheme of locking a door body by judging the telescopic state of a door bolt also exists, however, in actual use, the situation of locking by mistake can occur when the door bolt is manually touched, and great inconvenience is caused to a user.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a door magnetic control device for intelligent house possesses simple structure, and interference immunity is strong, and the accuracy is high, and the low power dissipation, advantage that the rate of recognition is high has solved the problem that above-mentioned technical background proposed.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a door magnetic control device for intelligent house, this door magnetic control device includes: the door magnetic chip comprises a door magnetic chip and a power supply module, wherein a signal input end and a signal output end are arranged on the door magnetic chip, a mode input interface, a magnetometer sensing circuit, an accelerometer sensing circuit and a reset circuit are electrically connected to an interface of the signal input end, an LED display circuit and a state output interface are electrically connected to an interface of the signal output end, the power supply module is respectively connected with the door magnetic chip, the magnetometer sensing circuit, the accelerometer sensing circuit, the reset circuit and the LED display circuit and supplies power to the power supply module, the magnetometer sensing circuit is composed of a magnetometer chip U2, a capacitor C2, a capacitor C4 and a capacitor C5, and the accelerometer sensing circuit is composed of an accelerometer chip U3 and a capacitor C3.

Preferably, the gate magnetic chip is an MCU, and the model thereof is STM32F030F 4.

Preferably, the mode input interface is a three-pin interface, the model number of the mode input interface is GH1.25-3P, and three pins of the mode input interface are respectively connected with the 3.3V voltage of the power supply module, the 6 th pin of the door magnetic chip and the ground wire.

Preferably, the model of the magnetometer chip U2 is HMC5883, the pin 13 of the magnetometer chip U2 is connected to the capacitor C2, the

pins

8 and 12 are connected to the capacitor C4, the

pins

10 and 11 are connected to the capacitor C5, the pin 1 and the pin 16 are connected to the pin 12 and the pin 13 of the gate chip, the pin 2 is connected to the voltage 3.3V of the power supply module, and the pin 9 is grounded.

Preferably, the model of the accelerometer chip U3 is QMA6981, pin 3 of the accelerometer chip U3 is connected to the capacitor C3, pin 7 is connected to the voltage of 3.3V of the power supply module,

pins

1, 4, 8, and 9 are grounded,

pins

2, 12, and 5 are connected to

pins

12, 13, and 14 of the gate chip, respectively, and

pins

6, 10, and 11 are extension pins.

Preferably, the reset circuit is connected to pin 4 of the gate chip, and the reset circuit is composed of a reset switch S1, a resistor R1 and a capacitor C1, wherein the reset switch S1 is connected in parallel with the capacitor C1, the resistor R1 is connected in series with the capacitor C1, and one end of the resistor R1, which is far away from the capacitor C1, is connected to the 3.3V voltage of the power supply module.

Preferably, the output voltage of the power supply module is 3.3V, and the power supply module is composed of a low dropout voltage regulator U4, a capacitor C6, a capacitor C7, a capacitor C8 and a capacitor C9, wherein the model of the low dropout voltage regulator U4 is LM1117-3.3, a pin 1 of the low dropout voltage regulator U4 is grounded, a pin 3 is externally connected with a 5V voltage input,

pins

2 and 4 output 3.3V voltages, the capacitor C6 and the capacitor C7 are connected in parallel, two ends of the capacitor C6 and two ends of the capacitor C7 are respectively connected with a 5V voltage and a ground wire, the capacitor C8 and the capacitor C9 are connected in parallel, and two ends of the capacitor C8 and two ends of the capacitor C9 are respectively connected with a 3.3V voltage and a ground wire.

Preferably, the LED display circuit comprises a three-color LED lamp D1, a resistor R3, a resistor R4 and a resistor R6, wherein the three-color LED lamp D1 is LED3535,

pins

6, 5 and 4 of the three-color LED lamp D1 are respectively connected to

pins

10, 9 and 8 of the gate chip after being connected to the resistor R3, the resistor R4 and the resistor R6, and

pins

1, 2 and 3 of the three-color LED lamp D1 are connected to the 3.3V voltage of the power supply module.

Preferably, the state output interface is a four-pin interface, the type of the state output interface is GH1.25-4P, and the four pins of the state output interface are respectively connected with the number 17, the number 18, the number 7 pins of the door magnetic chip and the ground wire.

Compared with the prior art, the beneficial effects of the utility model are as follows:

1. the utility model discloses a set up magnetometer sensing circuit and accelerometer sensing circuit, this magnetometer sensing circuit and accelerometer sensing circuit are used for gathering door body position and motion information respectively, and the door body position and the motion information transmission that will gather carry out the fusion algorithm logical operation for the door magnetism chip, calculate accurate lock position, and show through three-colour LED lamp D1 on the LED display circuit, and the state information that will correspond is synchronous to state output interface, serial port information and the level signal that output and different states correspond, make things convenient for intelligent domestic lock firm to read, look over and use, therefore, the clothes hanger is strong in practicability.

2. The utility model provides an accelerometer sensing circuit is used for remedying the judgement error that magnetometer sensing circuit caused because of environmental disturbance causes, receives to disturb unable accurate judgement lock door position back when magnetometer sensing circuit promptly, accelerometer sensing circuit still can calculate the lock door position that reachs the accuracy through the motion state and the characteristic that acquire the door body, just the utility model discloses a door magnetic control device is supplementary mutually in algorithm judgement, and intelligence fuses, effectively solves most artificial interference or environmental disturbance scheduling problem, has improved accuracy and identification rate.

3. The utility model provides a door magnetic chip adopts embedded internally mounted mode when the installation, at lock body internally mounted, need not to adorn other structures outward on domestic door, avoids providing reliable safe application scheme for intelligent domestic lock firm because of the inconvenient or artificial problem of destroying of the installation of different door bodies.

4. The utility model discloses the mode input interface and the state output interface of well design supply intelligent lock firm to use in a flexible way, and the mode input interface passes through level signal to door magnetic means and calibrates, awakens up functional operation such as from the dormancy, and the state output interface then according to device operation result output serial ports information and level signal, supplies the discernment of the domestic lock firm of intelligence and judges, constitutes closed feedback communication mechanism, accords with the trade demand.

5. The power supply module in the utility model provides stable 3.3V voltage supply, and the working current of the device is 15 mA; when the door body reaches the door locking position, the device automatically enters a dormant state, the current in the dormant state is only 10uA, and the beneficial effect that the power consumption of the door magnet control device is low is achieved.

Drawings

Fig. 1 is a schematic structural view of the present invention;

fig. 2 is a schematic circuit diagram of the present invention.

The reference numerals and names in the figures are as follows:

1. a door magnetic chip; 2. a mode input interface; 3. a magnetometer sensing circuit; 4. an accelerometer sensing circuit; 5. a reset circuit; 6. a power supply module; 7. an LED display circuit; 8. and a state output interface.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1 to fig. 2, the present invention provides an embodiment: the utility model provides a door magnetic control device for intelligent house, this door magnetic control device includes: the gate magnetic chip 1 is provided with a signal input end and a signal output end, the interface of the signal input end is electrically connected with a mode input interface 2, a magnetometer sensing circuit 3, an accelerometer sensing circuit 4 and a reset circuit 5, the interface of the signal output end is electrically connected with an LED display circuit 7 and a state output interface 8, the power supply module 6 is respectively connected with the gate magnetic chip 1, the magnetometer sensing circuit 3, the accelerometer sensing circuit 4, the reset circuit 5 and the LED display circuit 7 and supplies power to the power supply module, the output voltage of the power supply module 6 in the embodiment is 3.3V voltage, the power supply module 6 is composed of a low-voltage-difference voltage regulator U4, a capacitor C6, a capacitor C7, a capacitor C8 and a capacitor C9, wherein the model of the low-voltage-difference voltage regulator U4 is LM1117-3.3, and the pin No. 1 of the low-voltage-difference voltage regulator U4 is grounded, the No. 3 pin is externally connected with a 5V voltage input, the No. 2 and No. 4 pins output a 3.3V voltage, the capacitor C6 is connected with the capacitor C7 in parallel, two ends of the capacitor C6 and two ends of the capacitor C7 are respectively connected with the 5V voltage and the ground wire, the capacitor C8 is connected with the capacitor C9 in parallel, two ends of the capacitor C8 and two ends of the capacitor C9 are respectively connected with the 3.3V voltage and the ground wire, the power supply module 6 is combined with a chip sleep function, the power consumption is low, the service life is long, the magnetometer sensing circuit 3 is composed of a magnetometer chip U2, a capacitor C2, a capacitor C4 and a capacitor C5, the magnetometer chip U2 is HMC5883, the No. 13 pin of the chip U2 is connected with the capacitor C2, the No. 8 and No. 12 pin are connected with the 12 pin connecting capacitor C4, the No. 10 and No. 11 pin is connected with the capacitor C5, the No. 1 pin and the No. 16 pin are connected with the No. 12 and, the accelerometer sensing circuit 4 is composed of an accelerometer chip U3 and a capacitor C3, the model of the accelerometer chip U3 is QMA6981, a pin 3 of the accelerometer chip U3 is connected with the capacitor C3, a pin 7 is connected with the 3.3V voltage of the power supply module 6,

pins

1, 4, 8 and 9 are grounded,

pins

2, 12 and 5 are respectively connected with

pins

12, 13 and 14 of the door magnetic chip 1, and

pins

6, 10 and 11 are extension pins.

In the embodiment, the gate magnetic chip 1 is an MCU, and the model thereof is STM32F030F 4; the mode input interface 2 is a three-pin interface, the type of which is GH1.25-3P, and three pins of the mode input interface 2 are respectively connected with the 3.3V voltage of the power supply module 6, the No. 6 pin of the door magnetic chip 1 and the ground wire, and the mode input interface 2 is P1 in fig. 2; the reset circuit 5 is connected with a pin 4 of the door magnetic chip 1, and the reset circuit 5 is composed of a reset switch S1, a resistor R1 and a capacitor C1, wherein the reset switch S1 is connected with the capacitor C1 in parallel, the resistor R1 is connected with the capacitor C1 in series, and one end of the resistor R1, which is far away from the capacitor C1, is connected with the 3.3V voltage of the power supply module 6; the LED display circuit 7 comprises a three-color LED lamp D1, a resistor R3, a resistor R4 and a resistor R6, wherein the model of the three-color LED lamp D1 is LED3535,

pins

6, 5 and 4 of the three-color LED lamp D1 are respectively connected with

pins

10, 9 and 8 of the gate chip 1 after being connected with

pins

6, 5 and 4 of the resistor R3, the resistor R4 and the resistor R6, the

pins

1, 2 and 3 of the three-color LED lamp D1 are connected with the voltage 3.3V of the power supply module 6, and the resistor R3, the resistor R4 and the resistor R6 are voltage dividing resistors; the state output interface 8 is a four-pin interface, the type number of the state output interface is GH1.25-4P, four pins of the state output interface 8 are respectively connected with the number 17, the number 18, and the number 7 pins of the door magnetic chip 1 and the ground wire, and the state output interface 8 is P2 in fig. 2.

The working principle is as follows: the utility model discloses in operation, door body position and motion information are gathered respectively to magnetometer sensing circuit 3 and accelerometer sensing circuit 4 to door body position and motion information that will gather transmit to door magnetic chip 1 through I2C agreement, door magnetic chip 1 fuses algorithm logic operation, calculate accurate lock position, after the door body reachs the lock position, door magnetic control device gets into low-power consumption sleep mode, door magnetic control device receives level signal by mode input interface 2, realize functions such as device calibration, dormancy awaken up; the working state is expressed by different colors through the three-color LED lamp D1 on the LED display circuit 7, and serial port information and level signals of corresponding states are output through the state output interface 8, so that the intelligent household door lock manufacturer can read and use the serial port information and the level signals.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims

1. A door magnetic control device for smart home, comprising: door magnetism chip (1) and power module (6), its characterized in that: be provided with signal input part and signal output part on door magnetism chip (1), be connected with mode input interface (2), magnetometer sensing circuit (3), accelerometer sensing circuit (4) and reset circuit (5) on this signal input part's interface electricity, signal output part's interface electricity is connected with LED display circuit (7) and state output interface (8), power module (6) are connected with door magnetism chip (1), magnetometer sensing circuit (3), accelerometer sensing circuit (4), reset circuit (5) and LED display circuit (7) respectively and supply power for it, magnetometer sensing circuit (3) comprise magnetometer chip U2, electric capacity C2, electric capacity C4 and electric capacity C5, accelerometer sensing circuit (4) comprise accelerometer chip U3 and electric capacity C3.

2. The door sensor control device for smart home according to claim 1, characterized in that: the door magnetic chip (1) is an MCU (microprogrammed control unit) of which the model is STM32F030F 4.

3. The door sensor control device for smart home according to claim 1, characterized in that: the mode input interface (2) is a three-pin interface, the type number of the mode input interface is GH1.25-3P, and three pins of the mode input interface (2) are respectively connected with the 3.3V voltage of the power supply module (6), the No. 6 pin of the door magnetic chip (1) and the ground wire.

4. The door sensor control device for smart home according to claim 1, characterized in that: the model of the magnetometer chip U2 is HMC5883, and the No. 13 pin of magnetometer chip U2 is connected with electric capacity C2, No. 8 and No. 12 pin are connected with electric capacity C4, No. 10 and No. 11 pin are connected with electric capacity C5, No. 1 pin and No. 16 pin are connected with No. 12 and No. 13 pin of door magnetism chip (1), No. 2 pin is connected with the 3.3V voltage of power module (6), No. 9 pin ground connection.

5. The door sensor control device for smart home according to claim 1, characterized in that: the model of the accelerometer chip U3 is QMA6981, a pin 3 of the accelerometer chip U3 is connected with a capacitor C3, a pin 7 of the accelerometer chip U3 is connected with a voltage of 3.3V of the power supply module (6), pins 1, 4, 8 and 9 are grounded, pins 2, 12 and 5 are respectively connected with pins 12, 13 and 14 of the door magnetic chip (1), and pins 6, 10 and 11 are extension pins.

6. The door sensor control device for smart home according to claim 1, characterized in that: the reset circuit (5) is connected with a No. 4 pin of the door magnetic chip (1), the reset circuit (5) is composed of a reset switch S1, a resistor R1 and a capacitor C1, wherein the reset switch S1 is connected with the capacitor C1 in parallel, the resistor R1 is connected with the capacitor C1 in series, and one end, far away from the capacitor C1, of the resistor R1 is connected with the 3.3V voltage of the power supply module (6).

7. The door sensor control device for smart home according to claim 1, characterized in that: the output voltage of the power supply module (6) is 3.3V voltage, the power supply module (6) is composed of a low-dropout voltage regulator U4, a capacitor C6, a capacitor C7, a capacitor C8 and a capacitor C9, wherein the model of the low-dropout voltage regulator U4 is LM1117-3.3, a pin 1 of the low-dropout voltage regulator U4 is grounded, a pin 3 is externally connected with 5V voltage input, pins 2 and 4 output 3.3V voltage, the capacitor C6 and the capacitor C7 are connected in parallel, two ends of the capacitor C6 and two ends of the capacitor C7 are respectively connected with 5V voltage and a ground wire, the capacitor C8 and the capacitor C9 are connected in parallel, and two ends of the capacitor C8 and two ends of the capacitor C9 are respectively connected with 3.3V voltage and a ground wire.

8. The door sensor control device for smart home according to claim 1, characterized in that: the LED display circuit (7) is composed of a three-color LED lamp D1, a resistor R3, a resistor R4 and a resistor R6, wherein the model of the three-color LED lamp D1 is LED3535, pins 6, 5 and 4 of the three-color LED lamp D1 are respectively connected with pins 10, 9 and 8 of the gate magnetic chip (1) after being connected with the resistor R3, the resistor R4 and the resistor R6, and pins 1, 2 and 3 of the three-color LED lamp D1 are connected with the 3.3V voltage of the power supply module (6).

9. The door sensor control device for smart home according to claim 1, characterized in that: the state output interface (8) is a four-pin interface, the type number of the state output interface is GH1.25-4P, and four pins of the state output interface (8) are respectively connected with the No. 17, No. 18 and No. 7 pins of the door magnetic chip (1) and the ground wire.