WO2020024509A1

WO2020024509A1 - Smart door lock, and method and device for supplying power to smart door lock

Info

Publication number: WO2020024509A1
Application number: PCT/CN2018/120381
Authority: WO
Inventors: 李坤; 宋德超; 彭磊; 陈道远
Original assignee: 珠海格力电器股份有限公司
Priority date: 2018-08-01
Filing date: 2018-12-11
Publication date: 2020-02-06
Also published as: CN108716319A

Abstract

A smart door lock comprises: a main board (11) used to control a module that requires power supply in the smart door lock; a power source (13) used to supply power to the main board (11); and an isolation circuit (15) comprising an input end (21) and an output end (28) and used to supply power to the main board (11) after isolating the power source, wherein the power source (13) provides an input to the isolation circuit (15), and the output end (28) is connected to the main board (11) to supply power to the main board (11). Also provided are a method and device for supplying power to a smart door lock.

Description

Intelligent door lock, power supply method and device for intelligent door lock

This application claims the priority of a Chinese patent application filed with the Chinese Patent Office on August 1, 2018, with application number 201810865538.7, and with the application name "Smart Door Lock, Smart Door Lock Power Supply Method and Device", the entire contents of which are incorporated herein by reference. In this application.

Technical field

The present invention relates to the technical field of locks, and in particular, to a smart door lock and a power supply method and device for a smart door lock.

Background technique

In related technologies, the security of mechanical locks has been increasingly unable to meet the needs of the people, and smart locks have emerged at the historic moment. It is more secure, convenient and quicker than traditional mechanical locks, and has more advantages. Electronic smart locks (including password locks, card locks, fingerprint locks, iris locks, etc.), as a new generation of identification technology, their technical advantages and security are significantly improved compared to traditional mechanical locks, and they will gradually replace mechanical locks It has become a new protagonist in the lock industry, but the current smart lock power supply structure has obvious problems. Almost all current smart locks require battery power, but the power supply circuits are directly connected to the motherboard. This will cause the power supply voltage to run out of control. The control board of the smart lock will burn out and the security is poor.

In view of the above related technologies, the power supply circuit of the smart lock is directly connected to the main board, which causes the control board of the smart lock to burn out when the power supply voltage is out of control, leading to a technical problem of reduced safety. Currently, no effective solution has been proposed.

Summary of the invention

Embodiments of the present invention provide a smart door lock, a smart door lock power supply method and device, to at least solve the related art that the power supply circuit for the smart lock is directly connected to the main board, which causes the control board of the smart lock to control the power supply when the power supply voltage is out of control Burned out technical problems that cause reduced safety.

According to one aspect of the embodiments of the present invention, a smart door lock is provided, including: a main board for controlling a module in the smart door lock that requires power supply; a power source for supplying power to the main board; isolation The circuit includes an input terminal and an output terminal for supplying power to the motherboard after the power source is isolated, wherein the power source provides an input for the isolation circuit; the output terminal is connected to the motherboard and is used to provide power to the motherboard. The motherboard supplies power.

Optionally, the isolation circuit includes: a resistor; a capacitor, wherein the capacitor is connected in parallel with the resistor, and after the output terminal is connected with the motherboard, the resistor and the capacitor are connected in parallel with the motherboard.

Optionally, the isolation circuit includes: a first coil connected to the input terminal; and a second coil connected to the output terminal, wherein the first coil and the second coil are coupled, and the first coil A coil is used for reverse isolation of the input terminal, and the second coil is used for reverse isolation of the output terminal.

Optionally, the isolation circuit includes: a fuse connected in series between the input terminal and the first coil.

Optionally, the fuse includes: a resettable fuse.

Optionally, the power supply includes: an internal power supply and / or an external power supply, wherein the internal power supply is built in the smart door lock to supply power to the motherboard; and the external power supply is independent of the smart door The power supply of the lock supplies power to the motherboard through a power supply interface in the smart door lock.

Optionally, the power supply interface is an interface that complies with the USB standard.

According to another aspect of the embodiments of the present invention, a method for supplying power to a smart door lock is further provided, including: obtaining parameters of a power source for supplying power to the smart door lock; and judging whether the power source is safe for use according to the parameters. The smart door lock is powered; if the determination result is no, the power supply to the smart door lock is stopped.

Optionally, the power supply includes: an internal power supply and / or an external power supply, wherein the internal power supply is built in the smart door lock and supplies power to the motherboard; the external power supply is independent of the smart door lock The power supply supplies power to the motherboard through a power supply interface in the smart door lock.

According to another aspect of the embodiments of the present invention, there is also provided a smart door lock power supply device, including: an acquisition module configured to acquire a parameter of a power source for supplying power to the smart door lock; a judgment module configured to be based on the A parameter determines whether the power supply can safely supply the smart door lock; and a stop module is configured to stop the power supply from supplying power to the smart door lock if the determination result is no.

According to another aspect of the embodiments of the present invention, a storage medium on a main board of a smart door lock is also provided. The storage medium is used to store a program, and the program controls the storage medium when executed by a processor. The device in which the device is located executes the smart door lock power supply method described in any one of the above.

According to another aspect of the embodiment of the present invention, there is also provided a processor on a main board of a smart door lock, characterized in that the processor is used to run a program, and when the program is run, any one of the above is executed. The smart door lock power supply method described above.

In the embodiment of the present invention, a motherboard can be used to control a module in a smart door lock that needs to be powered, and the motherboard is powered by a power source. There can be an isolation circuit between the power source and the motherboard. The isolation circuit includes an input terminal and The output end is used to supply power to the motherboard after the power is isolated, so as to isolate the power supply from the motherboard. That is, in the embodiment of the present invention, the safety of the motherboard can be ensured through the isolation circuit. Even when there is a large amount of high-voltage input externally, the isolation circuit can be used to input safe electrical energy to the motherboard, thereby realizing the safety guarantee of the motherboard on electricity. In order to solve the technical problem that the power supply circuit for the smart lock in the related art is directly connected to the main board, which causes the control board of the smart lock to burn out when the power supply voltage is out of control, the safety is reduced.

BRIEF DESCRIPTION OF THE DRAWINGS

The drawings described here are used to provide a further understanding of the present invention and constitute a part of the present application. The schematic embodiments of the present invention and the descriptions thereof are used to explain the present invention, and do not constitute an improper limitation on the present invention. In the drawings:

1 is a schematic diagram of an optional smart door lock according to an embodiment of the present invention;

FIG. 2 is a first schematic diagram of another optional smart door lock according to an embodiment of the present invention; FIG.

3 is a second schematic diagram of another optional smart door lock according to an embodiment of the present invention;

4 is a flowchart of an optional smart door lock power supply method according to an embodiment of the present invention;

5 is a schematic diagram of another optional smart door lock power supply device according to an embodiment of the present invention.

detailed description

In order to enable those skilled in the art to better understand the solutions of the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only The embodiments are part of the present invention, but not all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts should fall within the protection scope of the present invention.

It should be noted that the terms “first” and “second” in the description and claims of the present invention and the above drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data so used may be interchanged where appropriate so that the embodiments of the invention described herein can be implemented in an order other than those illustrated or described herein. Furthermore, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions, for example, a process, method, system, product, or device that includes a series of steps or units need not be limited to those explicitly listed Those steps or units may instead include other steps or units not explicitly listed or inherent to these processes, methods, products or equipment.

The following embodiments of the present invention can be applied to various locks, including but not limited to: electronic locks, fingerprint locks, iris locks, etc. The installation positions of locks and the specifics of the locks are not specifically limited in the present invention, such as for smart As far as locks are concerned, they can include remote-control electronic anti-theft locks (such as light remote control and radio remote control), keypad-type electronic combination locks, biometric anti-theft locks (such as locks corresponding to the characteristics of hands, glasses, sound, etc.), card-type anti-theft lock (Contact and non-contact), electronic anti-theft alarm lock, etc. The following embodiments of the present invention can be described with an electronic lock. A conventional electronic lock is generally provided with an external charging interface (such as a USB interface) and a main control board, that is, the electronic lock can be temporarily powered through the USB interface. The main control board controls the verification of the password and related information corresponding to the electronic lock to enter the identity of the user who uses the electronic lock and prepare for the subsequent user authentication. The main control board can include but not Limited to: storage medium and processor, and password comparison library, the identity of the user can be determined by verifying the user's fingerprint, password and other information, and the user's permissions.

Of course, in the embodiment of the present invention, the specific verification method of the lock (such as the smart door lock in the following embodiments) is not limited, including but not limited to: digital password, fingerprint verification, iris verification, and the like.

The present invention can be directed to the direct connection between the charging interface (such as a USB interface) and the main control board in the related technology. If someone maliciously destroys it, externally connecting the charging interface with a high-voltage power supply will directly cause the main control board to be paralyzed, with extremely low security. Door locks and other extremely important equipment are likely to open the door automatically due to system disorder, which will pose a great threat to the personal safety of users and property. The following embodiments of the present invention address these problems, and propose a technical solution using an isolation circuit. The embodiments of the present invention are described in detail below through various embodiments.

Example one

FIG. 1 is a schematic diagram of an optional smart door lock according to an embodiment of the present invention. As shown in FIG. 1, the smart door lock may include: a motherboard 11, a power source 13, and an isolation circuit 15, wherein:

The mainboard 11 is configured to control a module that needs to be powered in the smart door lock.

The motherboard in the embodiment of the present invention can play a role of control and management. As a control component in a smart door lock, it can also perform the role of identity verification and authority verification. In the embodiment of the present invention, the motherboard is not limited It only controls the modules that need power supply, and it can also play a regulating function. The motherboard plays a larger role in the smart door lock, so it needs real-time power supply, and the voltage cannot exceed the voltage threshold that the motherboard can carry. If the voltage threshold is exceeded, the motherboard may be burned. Therefore, the following contents of the present invention It is explained that before the electric energy is input, the input electric energy can be isolated by using the isolation circuit 15 to ensure the normal operation of the motherboard.

The power supply 13 is used to supply power to the motherboard.

The present invention is not limited to the type of power source, and may be powered by a battery. Optionally, the internal power source includes one or more batteries, which are detachably installed in a smart door lock, such as a 5th battery, or can be An external USB is connected to a charging module (such as a power bank) as a power source. Generally speaking, the voltage of the power supply in the smart door lock is relatively low to ensure the normal operation of the internal motherboard and other modules.

In an optional implementation manner, the above-mentioned power supply includes: an internal power supply and / or an external power supply, wherein the internal power supply is built in the smart door lock to supply power to the motherboard; the external power supply is a power supply independent of the smart door lock, and The power supply interface in the door lock supplies power to the motherboard. The power supply interface is an interface that complies with the USB standard.

The above-mentioned internal power supply may be directed to a situation where a user is in a room door, and the user may directly supply power to a main board of the smart door lock in the room door, and at this time, the power supply of the user is relatively convenient. For external power, it can refer to the outside of the room door corresponding to the smart door lock. It can be provided with an external interface on the smart door lock, so that the external interface can be used to directly supply power to the motherboard, such as using a USB interface through a power bank. powered by.

The isolation circuit 15 includes an input end and an output end, which are used to supply power to the motherboard after the power source is isolated, wherein the power supply provides input to the isolation circuit; the output end is connected to the motherboard and is used to supply power to the motherboard.

Through the above-mentioned implementation manner, the main board 11 can be used to control the modules that need to be powered in the smart door lock, and the main board is powered by the power source 13, and there can be an isolation circuit 15 between the power source 13 and the main board 11. The isolation circuit 15 includes an input end and an output end to supply power to the motherboard after the power is isolated, so as to isolate the power supply 13 from the motherboard 11. That is, in the embodiment of the present invention, the safety of the motherboard can be ensured through the isolation circuit. Even when there is a large amount of high-voltage input externally, the isolation circuit can be used to input safe electrical energy to the motherboard, thereby realizing the safety guarantee of the motherboard on electricity. In order to solve the technical problem that the power supply circuit for the smart lock in the related art is directly connected to the main board, which causes the control board of the smart lock to burn out when the power supply voltage is out of control, the safety is reduced.

In an optional implementation manner, the isolation circuit includes: a resistor; a capacitor, the capacitor and the resistor are connected in parallel, and after the output terminal is connected to the main board, the resistor and the capacitor are connected in parallel to the main board.

Optionally, the above-mentioned resistors and capacitors may be provided on the output side of the isolation circuit, which may be connected in parallel with the motherboard to control the voltage input to the motherboard to be a normal voltage.

In addition, the above-mentioned isolation circuit may further include: a first coil connected to the input terminal; and a second coil connected to the output terminal, wherein the first coil is coupled to the second coil, and the first coil is used to reversely isolate the input terminal. The second coil is used to reverse isolate the output. Optionally, the isolation circuit may further include a diode, and the unidirectional conduction performance of the diode isolates the DC voltage.

FIG. 2 is a schematic diagram 1 of another optional smart door lock according to an embodiment of the present invention. As shown in FIG. 2, the smart door lock includes at least an input terminal 21 and an isolation circuit (including: a first coil 22, a first The two coils 23, the capacitor 25, the resistor 26) and the output terminal 28, wherein the input terminal 21 can be connected to the charging interface USB interface 20, and the output terminal 28 can be connected to the motherboard 27. Optionally, the isolation circuit in the embodiment of the present invention may further include a diode 24. In the use of coil coupling, the input and output of the main circuit have a high reverse isolation effect, and the unidirectional conduction performance of the diode 24 isolates the DC voltage. The capacitor 25 and the resistor 26 are connected in parallel, which can prevent the passage of a DC signal or a low-frequency signal, while an AC signal or a high-frequency signal easily passes. In this way, when the power is supplied through the USB interface, if the current and voltage are too large, the USB interface will be burned at most, and the impact on the part connected to the motherboard will be small, so the motherboard circuit can be effectively protected.

In another optional implementation manner described above, the isolation circuit includes: a fuse connected in series between the input terminal and the first coil. Preferably, the fuse includes: a resettable fuse.

FIG. 3 is a second schematic diagram of another optional smart door lock according to an embodiment of the present invention. As shown in FIG. 3, the smart door lock includes the input terminal 21 and the isolation circuit (including: The first coil 22, the second coil 23, the diode 24, the capacitor 25, the resistor 26) and the output terminal 28 may further include a resettable fuse 31.

Optionally, the self-recovery fuse in the embodiment of the present invention is an over-current electronic protection element. The traditional fuse over-current protection can only be used once, and it needs to be replaced after it is blown out. Not only protects the motherboard, but also protects the external USB end. If an overcurrent condition occurs, there is no need to replace the USB end circuit.

In another optional embodiment, the smart door lock further includes: a relay connected to the internal power source, and disconnecting the power supply interface from the main board when the voltage of the internal power source exceeds a threshold, otherwise, the power supply interface is connected to the main board. connection.

That is, in the embodiment of the present invention, when the voltage of the internal power source exceeds the threshold, the connection between the power supply interface and the motherboard can be switched in time in order to ensure that in the case of excessive voltage, the connection to the motherboard is cut off in time to ensure the motherboard. normal work.

According to the first embodiment, it can be known that an isolation circuit can be added to the smart door lock in this application to ensure that the input end of the input terminal input circuit is processed by the isolation circuit. Even if someone maliciously damages it, it can only lose power supply. The interface part of the circuit ensures that the motherboard is not damaged, thereby providing better protection for the smart door lock.

The present invention will be described in detail through another embodiment.

Example two

According to an embodiment of the present invention, an embodiment of a smart door lock power supply method is provided. It should be noted that the steps shown in the flowchart of the drawings can be executed in a computer system such as a set of computer-executable instructions, and, Although the logical order is shown in the flowchart, in some cases, the steps shown or described may be performed in a different order than here.

In this embodiment, it is described how to power the smart door lock. FIG. 4 is a flowchart of an optional smart door lock power supply method according to an embodiment of the present invention. As shown in FIG. 4, the method includes the following steps. :

In step S402, parameters of a power source for supplying power to the smart door lock are obtained.

In step S404, it is determined whether the power supply can safely supply the smart door lock according to the parameters.

Optionally, in this step, the voltage of the power source indicated in the detection parameter may exceed a preset threshold. The preset threshold set by the present invention is set by itself according to the power supply situation in each smart door lock. Set to 50V. Of course, in the embodiment of the present invention, when judging whether the power source can safely supply power according to parameters, reference may also be made to parameters of other power sources, frequency of power supply, and the like.

In step S406, if the determination result is no, the power supply to the smart door lock is stopped.

Through the above steps, when the power is supplied, the parameters of the power supply for the smart door lock can be obtained first, and whether the power supply can safely supply the smart door lock can be determined according to the parameters, and if the judgment result is no, stop The power supplies power to the smart door lock. In this embodiment, it is possible to determine whether to supply power to the smart door lock by detecting the parameters of the power supply and judging whether the power supply is safe, that is, in the embodiment of the present invention, the security problem of the smart door lock during power supply can be guaranteed. There will be no damage to the smart door lock caused by excessive high voltage of the power supply, which solves the problem that the power supply circuit for the smart lock in the related technology is directly connected to the main board, which causes the control board of the smart lock to burn out when the power supply voltage is out of control, resulting in safety Reduced technical issues.

Optionally, the power supply mentioned above may include: an internal power supply and / or an external power supply, wherein the internal power supply is built into the smart door lock and supplies power to the motherboard; the external power supply is a power supply independent of the smart door lock and passes through the smart door lock The power supply interface supplies power to the motherboard.

FIG. 5 is a schematic diagram of another optional smart door lock power supply device according to an embodiment of the present invention. As shown in FIG. 5, the device may include: an obtaining module 51, a determining module 53, and a stopping module 55, where:

The obtaining module 51 is configured to obtain a parameter of a power source for supplying power to the smart door lock.

The judging module 53 is configured to judge whether the power supply can safely supply the smart door lock according to the parameters.

The stopping module 55 is configured to stop the power supply from supplying power to the smart door lock if the determination result is no.

Through the above device, when the power is supplied, the parameters of the power supply for supplying power to the smart door lock can be obtained through the acquisition module 51, and the judgment module 53 can determine whether the power supply can safely supply the smart door lock according to the parameters, and stop the module 55 In the case of a negative determination result, stop the power supply to the smart door lock. In this embodiment, it is possible to determine whether to supply power to the smart door lock by detecting the parameters of the power supply and judging whether the power supply is safe, that is, in the embodiment of the present invention, the security problem of the smart door lock during power supply can be guaranteed. There will be no damage to the smart door lock caused by excessive high voltage of the power supply, which solves the problem that the power supply circuit for the smart lock in the related technology is directly connected to the motherboard, which causes the control board of the smart lock to burn out when the power supply voltage is out of control, resulting in safety Reduced technical issues.

Optionally, the aforementioned power supply includes: an internal power supply and / or an external power supply, wherein the internal power supply is built into the smart door lock to supply power to the motherboard; the external power supply is a power supply independent of the smart door lock, and The power supply interface supplies power to the motherboard.

According to another aspect of the embodiments of the present invention, a storage medium on a motherboard of a smart door lock is also provided. The storage medium is used to store a program, and when the program is executed by a processor, controls a device where the storage medium is located to execute any one of the foregoing. Item of smart door lock power supply method.

According to another aspect of the embodiments of the present invention, there is also provided a processor on a main board of a smart door lock, which is characterized in that the processor is used to run a program, and when the program is run, any one of the above-mentioned smart door locks is powered on. method.

The above-mentioned smart door lock power supply device may further include a processor and a memory. The acquisition module 51, the judgment module 53, the stop module 55, and the like are all stored in the memory as program units, and the processor executes the program units stored in the memory to Implement the corresponding functions.

The above processor includes a kernel, and the kernel retrieves a corresponding program unit from the memory. The kernel can set one or more, and adjust the kernel parameters to confirm whether the power supply can safely supply the smart door lock.

The above memory may include non-persistent memory, random access memory (RAM), and / or non-volatile memory in computer-readable media, such as read-only memory (ROM) or flash memory (flash RAM). The memory includes at least A memory chip.

This application also provides a computer program product that, when executed on a data processing device, is suitable for executing a program initialized with the following method steps: obtaining parameters of a power supply for supplying power to a smart door lock; and judging whether the power supply is safe according to the parameters Power the smart door lock; if the judgment result is no, stop the power supply for the smart door lock.

Optionally, when the above data processing device executes a program, it is also applicable to a program that executes the following method steps: the power source includes: an internal power source and / or an external power source, wherein the internal power source is built in a smart door lock to power the motherboard; The external power supply is independent of the smart door lock, and supplies power to the motherboard through the power supply interface in the smart door lock.

The sequence numbers of the foregoing embodiments of the present invention are only for description, and do not represent the superiority or inferiority of the embodiments.

In the foregoing embodiments of the present invention, the description of each embodiment has its own emphasis. For a part that is not described in detail in an embodiment, reference may be made to the description of other embodiments.

In the several embodiments provided in this application, it should be understood that the disclosed technical content can be implemented in other ways. The device embodiments described above are only schematic. For example, the division of the unit may be a logical function division. In actual implementation, there may be another division manner. For example, multiple units or components may be combined or may be combined. Integration into another system, or some features can be ignored or not implemented. In addition, the displayed or discussed mutual coupling or direct coupling or communication connection may be indirect coupling or communication connection through some interfaces, units or modules, and may be electrical or other forms.

The units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, may be located in one place, or may be distributed on multiple units. Some or all of the units may be selected according to actual needs to achieve the objective of the solution of this embodiment.

In addition, each functional unit in each embodiment of the present invention may be integrated into one processing unit, or each unit may exist separately physically, or two or more units may be integrated into one unit. The above integrated unit may be implemented in the form of hardware or in the form of software functional unit.

When the integrated unit is implemented in the form of a software functional unit and sold or used as an independent product, it may be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present invention essentially or part that contributes to the existing technology or all or part of the technical solution can be embodied in the form of a software product, which is stored in a storage medium Including a plurality of instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to perform all or part of the steps of the method described in each embodiment of the present invention. The foregoing storage media include: U disks, Read-Only Memory (ROM), Random Access Memory (RAM), mobile hard disks, magnetic disks, or optical disks, and other media that can store program codes .

The above is only a preferred embodiment of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the principles of the present invention, several improvements and retouches can be made. These improvements and retouches also It should be regarded as the protection scope of the present invention.

Industrial applicability

The solution provided in the embodiment of the present application can be used to isolate the power supply from the main board in the smart door lock. In the technical solution provided in the embodiment of the present application, the main board is used to control the module in the smart door lock that needs to be powered, and The power supply supplies power to the motherboard, and there may be an isolation circuit between the power supply and the motherboard. The isolation circuit includes an input end and an output end to supply power to the motherboard after the power supply is isolated, so as to isolate the power supply from the motherboard, even if external When a large amount of high-voltage input is used, it is also possible to use the isolation circuit to input safe power to the motherboard, thereby realizing the power security of the motherboard, thereby solving the related art that the power supply circuit for the smart lock is directly connected to the motherboard, resulting in the supply voltage. When out of control, the control motherboard of the smart lock will burn out, resulting in technical problems of reduced security.

Claims

A smart door lock includes:

A motherboard for controlling a module in the smart door lock that needs to be powered;

A power supply for supplying power to the motherboard;

An isolation circuit includes an input terminal and an output terminal for supplying power to the motherboard after the power source is isolated, wherein the power source provides an input for the isolation circuit; and the output terminal is connected to the motherboard for connecting The motherboard provides power.
The smart door lock according to claim 1, wherein the isolation circuit comprises:

resistance;

A capacitor, the capacitor and the resistor are connected in parallel, and after the output terminal is connected to the motherboard, the resistor and the capacitor are connected in parallel to the motherboard.
The smart door lock according to claim 1, wherein the isolation circuit comprises:

A first coil connected to the input terminal;

A second coil is connected to the output terminal, wherein the first coil is coupled to the second coil, the first coil is used for reverse isolation of the input terminal, and the second coil is used for The output terminal is isolated in reverse.
The smart door lock according to claim 3, wherein the isolation circuit comprises:

A fuse is connected in series between the input terminal and the first coil.
The smart door lock according to claim 4, wherein the fuse comprises a self-recovery fuse.
The smart door lock according to any one of claims 1 to 5, wherein the power source comprises: an internal power source and / or an external power source, wherein the internal power source is built into the smart door lock, and the The main board provides power; the external power source is a power source independent of the smart door lock, and the main board is powered through a power supply interface in the smart door lock.
The smart door lock according to claim 6, wherein the power supply interface is an interface that complies with the USB standard.
A smart door lock power supply method includes:

Acquiring parameters of a power source for powering the smart door lock;

Determining whether the power supply can safely supply the smart door lock according to the parameters;

When the determination result is no, stopping the power supply from the power supply to the smart door lock.
The method according to claim 8, wherein the power source comprises: an internal power source and / or an external power source, wherein the internal power source is built in the smart door lock to power the motherboard; the external power source is independent The motherboard is powered by a power supply of the smart door lock through a power supply interface in the smart door lock.
A smart door lock power supply device includes:

An obtaining module, configured to obtain a parameter of a power source for supplying power to the smart door lock;

A judging module configured to judge whether the power supply can safely supply the smart door lock according to the parameters;

The stopping module is configured to stop the power supply from the power supply to the smart door lock if the determination result is no.