Multifunctional door lock intelligently controlled by remote cloud and capable of automatically alarming

Abstract

The invention relates to the technical field of smart home, in particular to a remote cloud intelligent control and automatic alarm multifunctional door lock which comprises a lock body, a front cover installed on the front face of the lock body and a rear cover installed on the back face of the lock body, the front cover is fixedly connected to the front face of the lock body, and an unlocking module is installed on the front face of the front cover; a sensor module, a camera module and a main control chip are installed in the rear cover, a communication module and a linkage module are installed on the main control chip, and an alarm module and a power module are installed on the back face of the rear cover. Through the integrated design of multiple unlocking modes and multiple sensor modules, real-time monitoring of the indoor environment and linkage operation of intelligent home furnishing are achieved, especially under the emergency conditions of fire disasters, gas leakage and the like, an alarm can be automatically given, equipment is linked to take emergency measures, and home safety and use convenience are greatly improved.

Description

Technical Field

[0001] The present invention relates to the technical field of smart home, and particularly to a multifunctional door lock with remote cloud intelligent control and automatic alarm. Background Art

[0002] With the rapid development of smart home technology, people's requirements for home security and convenience are getting higher and higher. Traditional door lock systems have a single function and can only provide basic mechanical locking functions, unable to meet the needs of modern families for security and intelligence. In recent years, although there have been some door locks with electronic unlocking functions on the market, such as password locks, fingerprint locks, etc., most of these door locks lack the linkage function with other smart home devices and cannot issue alarms and take emergency measures in a timely manner in case of emergencies (such as fires, gas leaks, etc.).

[0003] In the patent with publication number CN108104611B, "A Multifunctional Portable Smart Anti-theft Door Lock for Home Use", it is proposed that it includes a lock body, a lock box and an intelligent unlocking component. An arc-shaped through groove is provided in the inner cavity of the lock body, and an arc-shaped lock bar is provided inside the through groove. An arc-shaped lock groove is provided in the inner cavity of the lock box, and a self-locking device is provided inside it. The self-locking device is composed of a clamping bar, a clamping part, a groove and a return spring. A rectangular clamping groove is opened at the locking end of the arc-shaped lock bar. An electric push rod is provided on the inner wall of the arc-shaped lock groove. A lock hole and a rotating motor are respectively provided in the lock body. The arc-shaped lock bar is connected to the rotating motor and the lock head transmission bar through a T-shaped transmission rod. The intelligent unlocking component is composed of a liquid crystal screen, a password keyboard, a fingerprint collection window, a microprocessor, an algorithm chip, a memory and a control module. A proximity sensor is provided below the lock hole. A pressure sensor is provided on the right-angled side wall of the clamping part. An alarm is provided inside the lock box. The beneficial effects of the present invention are simple structure and strong practicability.

[0004] In the above-mentioned invention, it is proposed that by adopting three opening methods of fingerprint, password and key, a strong anti-theft function can be achieved through the self-locking device and the alarm, and the structure is simple and the operation is convenient. In addition, there are deficiencies in the functional integration of the existing intelligent door lock system. For example, it cannot support multiple opening methods at the same time, or cannot monitor the indoor environment in real time. Although some intelligent door locks have certain communication functions, they can often only be simply connected to a mobile phone and cannot form a complete linkage mechanism with the smart home system. In case of emergencies, these door locks cannot automatically trigger an alarm or cooperate with other devices, thus unable to give full play to the advantages of the smart home system. Summary of the Invention

[0005] To achieve the above object, the present invention provides a multifunctional door lock with remote cloud intelligent control and automatic alarm, which includes a lock body, a front cover installed on the front of the lock body, and a rear cover installed on the back of the lock body. An unlocking module is fixedly connected to the front of the lock body and installed on the front of the front cover. A sensor module, a camera module, and a main control chip are respectively installed inside the rear cover. A communication module and a linkage module are respectively installed on the main control chip. An alarm module and a power supply module are respectively installed on the back of the rear cover. The sensor module includes a temperature sensor, a smoke sensor, and a gas leakage sensor. The sensor module is designed as an independent PCB board and cooperates with the main control chip through a plug-and-play connection.

[0006] In one example, the unlocking module includes at least one of the following unlocking devices: a face recognition device, a palm vein recognition device, a password input device, an IC card module, an NFC module, a Bluetooth module, and a mechanical key.

[0007] In one example, a mesh opening is provided on the back of the rear cover, and the mesh opening corresponds to the position of the sensor module to ensure sufficient contact between the sensor module and the outside world.

[0008] In one example, the temperature sensor uses an MCU heartbeat packet to periodically read the voltage value through an ADC and convert it into a temperature parameter according to the NTC resistance temperature curve. When the detected temperature is greater than or equal to the preset value, the alarm function is activated. A through hole is provided on the surface of the rear cover, and the NTC resistance is fixedly installed inside the through hole, and there is a certain gap between the NTC resistance and the inner wall of the through hole.

[0009] In one example, the communication module supports at least one of Wi-Fi, Bluetooth, and ZigBee protocols for data communication with remote user terminals, management platforms, and other smart home devices. The communication module can send an alarm signal to the remote user terminal or management platform when the sensor module detects abnormal data and perform real-time image acquisition through the camera module.

[0010] In one example, the alarm module includes an alarm sound generator and a light warning device, which are installed on the back of the rear cover for warning through sound and light alarm when an abnormality occurs. The alarm module can cooperate with smart home devices through the linkage module to control smart speakers, smart lights, and smart ventilation systems to issue emergency alarms.

[0011] In one example, the power supply module supports power supply by dry batteries or rechargeable batteries and has a low battery reminder function.

[0012] In one example, pin headers or female headers are provided on the PCB board of the sensor module and are connected to the corresponding interfaces on the main control chip.

[0013] In one example, a mounting opening is provided on the back cover, and the camera module is fixedly installed inside the mounting opening.

[0014] In one example, the linkage module supports linkage with smart home devices, automatically sends control signals, and links the smart home to automatically open and close.

[0015] The multifunctional door lock with remote cloud intelligent control and automatic alarm proposed by the present invention can bring the following beneficial effects:

[0016] 1. The present invention realizes real-time monitoring of the indoor environment and linkage operation of smart home by setting multiple unlocking methods and integrated design of multiple sensor modules. Especially in emergency situations such as fire and gas leakage, it can automatically alarm and link equipment to take emergency measures, greatly improving family safety and convenience of use.

[0017] 2. The present invention can monitor the indoor environment in real time by setting up and integrating multiple sensor modules (such as temperature sensors, smoke sensors and gas leak sensors). In emergency situations such as fire and gas leaks, the system can quickly detect abnormalities and promptly notify users through sound and light alarms, APP push, etc. At the same time, it can link smart home devices (such as smart speakers, smart lights, and smart ventilation systems) to issue emergency alarms to ensure family safety.

[0018] 3. The sensor module of the present invention adopts an independent PCB board design and cooperates with the main control chip through a plug-in connection. This modular design not only facilitates users to select and replace sensor modules according to their needs, but also facilitates product upgrades and maintenance, and improves product flexibility and scalability. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0020] Figure 1 A schematic diagram of the structure of the present invention from a first viewing angle;

[0021] Figure 2 A schematic diagram of the structure of the present invention from a second viewing angle;

[0022] Figure 3 A schematic diagram of the back cover structure of the present invention;

[0023] Figure 4 A schematic diagram of the structure of the sensor module and the communication module of the present invention;

[0024] Figure 5 Schematic diagram of the linkage between the present invention and other smart home devices;

[0025] Figure 6 Schematic diagram of the principle structure of the temperature sensor of the present invention;

[0026] Figure 7 Schematic diagram of the working process of the temperature sensor of the present invention.

[0027] The reference numerals are as follows:

[0028] 1 Lock body, 2 Front cover, 3 Rear cover, 4 Lock-opening module, 5 Sensor module, 6 Camera module, 7 Communication module, 8 Alarm module, 9 Linkage module, 10 Main control chip. Specific embodiments

[0029] In order to more clearly illustrate the overall concept of the present invention, the following will be described in detail by way of examples in conjunction with the accompanying drawings of the specification.

[0030] In the description of the present invention, it should be understood that the orientation or positional relationships indicated by the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", etc. are based on the orientation or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention.

[0031] In addition, the terms "first" and "second" are only used for descriptive purposes and should not be construed as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present invention, "a plurality" means two or more unless otherwise specifically defined.

[0032] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed", etc. should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection, an electrical connection, or a communication; it may be directly connected, or indirectly connected through an intermediate medium, and may be the internal communication of two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0033] In the present invention, unless otherwise clearly specified and defined, the first feature being "on" or "under" the second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. In the description of this specification, the description referring to terms such as "one solution", "some solutions", "example", "specific example", or "some examples" means that the specific features, structures, materials, or characteristics described in connection with the solution or example are included in at least one solution or example of the present invention. In this specification, the schematic expressions of the above terms do not necessarily refer to the same solution or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more solutions or examples.

[0034] As Figures 1 to 7 As shown, the present invention provides a multifunctional door lock with remote cloud intelligent control and automatic alarm, including a lock body 1. A front cover 2 is installed on the front of the lock body 1, and the installation direction of the front cover 2 is towards the outside of the household door, that is, the part for users to unlock the door. An unlocking module 4 is installed on the front cover 2. The unlocking module 4 includes one or more of a face recognition device, a palm vein recognition device, a password input device, an IC card module, an NFC module, a Bluetooth module, and a mechanical key, and the installation of the unlocking module 4 on the front cover 2 can be carried out according to customer requirements.

[0035] Inside the rear cover 3, a sensor module 5, a camera module 6, a communication module 7, an alarm module 8, and a linkage module 9 are respectively arranged. The sensor module 5 includes a temperature sensor, a smoke sensor, and a gas leakage sensor, and a mesh opening is provided on the back of the rear cover 3. The position of the sensor module 5 corresponds to the mesh opening, which can ensure the contact between the sensor module 5 and the outside, ensure that the gas fully contacts the sensor, and ensure the detection of the sensor.

[0036] The temperature sensor uses the MCU heartbeat packet to regularly read the voltage value through the ADC, and converts the voltage value into a temperature parameter according to the NTC resistance temperature curve. When the temperature read by the MCU is greater than or equal to the preset temperature value, the corresponding alarm functions are activated: doorbell alarm sound, automatically opening the door lock, APP alarm. This temperature detection can also be set according to the temperature value to link the operation of the indoor air conditioner through the APP.

[0037] The resistance value is selected as 100k, which can ensure a power consumption loss of less than 17uA at room temperature. For the door lock device with long standby, the power consumption is acceptable. The NTC resistance is installed in the through hole opened on the rear cover 3, and the through hole can conduct the air in the room and the air inside the door lock shell to ensure that the NTC can correctly detect the temperature around the door lock.

[0038] An installation opening is provided on the back of the rear cover 3, and the camera module 6 is fixedly installed inside the installation opening for monitoring the indoor environment.

[0039] The communication module 7 supports one or more of the Wi-Fi, Bluetooth, and ZigBee protocols and is used for data communication with remote user terminals, management platforms, and other smart home devices. When the sensor module 5 detects abnormal data, the communication module 7 can send an alarm signal to the remote user terminal or management platform and perform real-time image acquisition through the camera module 6. The camera module 6 is signal-connected to the communication module 7.

[0040] The alarm module 8 includes an alarm sound generator and a light warning device. The alarm module 8 is installed on the back of the rear cover 3 and is used to give a warning through sound and light alarms in case of abnormalities. The alarm module 8 can cooperate with smart home devices through the linkage module 9 to control devices such as smart speakers, smart lights, and smart ventilation systems to issue emergency alarms.

[0041] The linkage module 9 supports linkage with smart home devices such as smart thermostats, air purifiers, and smart speakers. When the gas leakage sensor detects an abnormal concentration, it automatically sends a control signal to link the smart gas valve to close the gas and start the exhaust device.

[0042] The door lock is equipped with an independent power module. The independent power module supports power supply by dry batteries or rechargeable batteries. The power module supports a low battery reminder function, such as a voice reminder function. The power module is mainly used for power supply of the door lock.

[0043] To ensure the overall coordination among various modules, a main control chip 10 (such as STM32) is installed on the rear cover 3. The linkage module 9 and the communication module 7 are both installed on the main control chip 10. For the Wi-Fi module of the communication module 7, such as ESP8266, it is connected to the power module through VCC, and the RXD (receive pin) and TXD (transmit pin) are respectively connected to the serial port pins of the main control chip 10 (such as STM32). The alarm module 8 is connected to the power module through VCC, and the pins of the alarm module 8 are connected to the GPIO pins of the main control chip 10 and are controlled through PWM or digital signals.

[0044] To facilitate the disassembly, replacement, and selection of the sensor module 5 according to the user's needs, each sensor module 5 is designed as an independent PCB board, including a sensor chip, such as a temperature sensor (such as DHT11), a smoke sensor (such as MQ-2), or a gas leakage sensor (such as MQ-4), and an interface circuit. The interface circuit is used to connect to the main control chip 10 and usually adopts GPIO, I2C, SPI, or UART interfaces. The main control chip 10 reads and processes sensor data through these interfaces. The PCB board is provided with a VCC interface connected to the power module.

[0045] A pin header or a female header is provided on the PCB board, and a corresponding pin header or a female header is provided on the main control chip 10. The physical connection between the sensor module 5 and the main control chip 10 can be realized through the connection between the pin header and the female header, so that each sensor module 5 can be installed or replaced by plugging and unplugging.

[0046] Combined with the above description, we combine the linkage processing between each module when a fire occurs. When a fire occurs, the smoke sensor and temperature sensor in the smart door lock system will quickly detect abnormal signals and immediately transmit the fire alarm to the main control chip 10 through the GPIO interface. After receiving the alarm, the main control chip 10 immediately starts the linkage program. On the one hand, the fire signal is sent to the remote management platform and the user terminal through the communication module 7 (such as Wi-Fi or ZigBee), and the buzzer and LED light in the alarm module 8 are triggered to send an audible and visual alarm, and the intelligent audio is linked to play a voice alarm to remind the indoor personnel of the fire and guide the evacuation. At the same time, the main control chip 10 sends a power-off signal to the electric lock through the linkage module 9, so that the door lock is automatically opened to ensure that the escape route is unobstructed. In addition, the system will also transmit the fire signal to the fire control center to trigger the fire linkage mechanism, such as starting the fire sprinkler system, shutting down the ventilation equipment, etc. During the whole process, the system continues to push the fire situation and equipment status to the user through the remote management platform to ensure that the user can grasp the dynamics of the scene in real time and take corresponding measures. After the fire is resolved, the system automatically returns to normal working state, continues to monitor the environment and ensure safety.

[0047] Each embodiment in this specification is described in a progressive manner, and the same or similar parts between the embodiments can be referred to each other, and each embodiment focuses on the differences from other embodiments. In particular, for the system embodiment, since it is basically similar to the method embodiment, the description is relatively simple, and the relevant parts can be referred to the partial description of the method embodiment.

[0048] The above description is only an embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent substitution, improvement, etc. made within the spirit and principle of the present invention should be included in the scope of the claims of the present invention.

Claims

1. A multifunctional door lock with remote cloud intelligent control and automatic alarm, comprising a lock body (1), a front cover (2) installed on the front of the lock body (1), and a rear cover (3) installed on the back of the lock body (1), characterized in that: The front side of the lock body (1) is fixedly connected to a front cover (2); an unlocking module (4) is installed on the front side of the front cover (2); a sensor module (5), a camera module (6) and a main control chip (10) are installed inside the rear cover (3); a communication module (7) and a linkage module (9) are installed on the main control chip (10); an alarm module (8) and a power supply module are installed on the back side of the rear cover (3); the sensor module (5) comprises a temperature sensor, a smoke sensor and a gas leakage sensor; the sensor module (5) is designed as an independent PCB board and cooperates with the main control chip (10) through a plug-in connection.

2. A multifunctional door lock with remote cloud intelligent control and automatic alarm according to claim 1, characterized in that: The unlocking module (4) comprises at least one of the following unlocking devices: a face recognition device, a palm vein recognition device, a password input device, an IC card module, an NFC module, a Bluetooth module and a mechanical key.

3. A multifunctional door lock with remote cloud intelligent control and automatic alarm according to claim 1, characterized in that: The back of the rear cover (3) is provided with a mesh opening, which corresponds to the position of the sensor module (5) and is used to ensure that the sensor module (5) is in full contact with the outside world.

4. A multifunctional door lock with remote cloud intelligent control and automatic alarm according to claim 1, characterized in that: The temperature sensor uses the MCU heartbeat package to read the voltage value through the ADC at regular intervals, and converts it into a temperature parameter according to the NTC resistor temperature curve. When the detected temperature is greater than or equal to a preset value, the alarm function is activated. A through hole is opened on the surface of the rear cover (3), and the NTC resistor is fixedly installed inside the through hole, and there is a certain gap between the NTC resistor and the inner wall of the through hole.

5. The multifunctional door lock with remote cloud intelligent control and automatic alarm according to claim 1, characterized in that: The communication module (7) supports at least one of Wi-Fi, Bluetooth, and ZigBee protocols, and is used for data communication with a remote user terminal, a management platform, and other smart home devices. When the sensor module (5) detects abnormal data, the communication module (7) can send an alarm signal to the remote user terminal or the management platform, and perform real-time image acquisition through the camera module (6).

6. A multifunctional door lock with remote cloud intelligent control and automatic alarm according to claim 1, characterized in that: The alarm module (8) comprises an alarm sound generator and a light warning device, which is installed on the back of the rear cover (3) and is used to warn through sound and light alarms when an abnormality occurs. The alarm module (8) can cooperate with smart home devices through the linkage module (9) to control the smart audio, smart lighting and smart ventilation system to issue an emergency alarm.

7. A multifunctional door lock with remote cloud intelligent control and automatic alarm according to claim 1, characterized in that: The power module supports power supply from dry cells or rechargeable batteries and has a low-battery reminder function.

8. The multifunctional door lock with remote cloud intelligent control and automatic alarm according to claim 1, characterized in that: The PCB board of the sensor module (5) is provided with a pin header or a female header, which is connected to a corresponding interface on the main control chip (10).

9. The multifunctional door lock with remote cloud intelligent control and automatic alarm according to claim 1, characterized in that: The rear cover (3) is provided with a mounting opening, and the camera module (6) is fixedly mounted inside the mounting opening.

10. The multifunctional door lock with remote cloud intelligent control and automatic alarm according to claim 1, characterized in that: The linkage module (9) supports linkage with smart home devices, automatically sends control signals, and links the smart home to automatically start and close.

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