Intelligent door lock standby power supply optimization control system and method

Abstract

The invention discloses an intelligent door lock standby power supply optimization control system and method, and relates to the technical field of intelligent door locks, and the method comprises the steps: connecting a standby power supply with a standby power supply module, and supplying power to an intelligent door lock; reverse connection of the standby power supply is prevented through the diode. The standby power supply control module detects the input current of the standby power supply module for supplying power to the intelligent door lock, the standby power supply control module is matched with the first current-limiting resistor, the fluctuation of the input current of the standby power supply module is reduced, and the working current output by the standby power supply control module is limited within a proper range; when the unlocking information input by the user into the intelligent door lock is corrected, an unlocking instruction is sent to control the motor driving module and the driving motor to operate, and unlocking is achieved; and the main power supply control module is matched with the second current-limiting resistor to limit the current input into the motor driving module and reduce the current fluctuation of the working of the motor driving module. The problems of insufficient power supply of a standby power supply and overlarge peak current in the rotation process of the motor can be solved.

Description

Technical Field

[0001] The present invention relates to the technical field of smart door locks, and in particular to a smart door lock backup power supply optimization control system and method. Background Art

[0002] Currently, most smart door locks on the market use batteries as their main power source. Although this design provides sufficient power for the door locks for daily operations, when the battery runs out, users usually need to find a backup power source for power supply.

[0003] Due to the differences in the output current of the Type-C interface of different devices, when the backup power supply is used to power the smart door lock, if the output current is too small, it will not be able to meet the startup requirements of the smart door lock, resulting in the door lock being unable to be fully opened, or the opening process being abnormally slow; if the output current is too large, it may damage the circuit components inside the smart door lock, and may even cause the door lock to freeze or fail to work properly.

[0004] In particular, when using a mobile phone as a backup power source, the output current of its Type-C interface is limited, usually 0.9A, 1.5A or a maximum of 3A.

[0005] During the rotation of the motor, if the peak current is too large and the output current of the backup power supply exceeds the maximum output rating, the backup power supply will protect itself and stop the current output, and the smart door lock cannot be used anymore.

[0006] Therefore, the input current of the backup power supply to the smart door lock is limited, resulting in insufficient power supply; it is also easy for the protection mechanism to be triggered by large current, and stop outputting large current, causing the smart door lock to be unable to work stably. Summary of the invention

[0007] In view of the defects existing in the prior art, the purpose of the present invention is to provide a smart door lock backup power supply optimization control system and method, which can solve the problems of insufficient backup power supply and excessive peak current during motor rotation.

[0008] In order to achieve the above purpose, the technical solution adopted by the present invention is:

[0009] In a first aspect, the present application provides a smart door lock backup power optimization control system, the system comprising three branches:

[0010] First branch: backup power supply module, diode D1, power detection module, backup power control module, first current limiting resistor R1, electrically connected in sequence;

[0011] The second branch: the information input module, the information processing module, and the main power control module are connected in sequence;

[0012] The third branch: the motor, the motor drive module, and the second current limiting resistor R2 are connected in sequence;

[0013] The first current limiting resistor R1 and the second current limiting resistor R2 are both connected to the main power control module.

[0014] On the basis of the above technical solution, in the first branch:

[0015] The backup power supply module has a Type-C interface for connecting to an external backup power supply;

[0016] The diode D1 is a voltage stabilizing protection diode to prevent the backup power supply from being reversely connected;

[0017] The power supply detection module is used to detect the input current of the backup power supply module and transmit the current detection result to the backup power supply control module;

[0018] The backup power supply control module is used to reduce the current fluctuation caused by the rotation of the motor according to the current detection result.

[0019] On the basis of the above technical solution, in the first branch:

[0020] The first current limiting resistor R1 is used to cooperate with the backup power supply control module to jointly achieve: reducing the fluctuation of the input current of the backup power supply module and limiting the working current output by the backup power supply control module within a suitable range.

[0021] On the basis of the above technical solution, in the second branch:

[0022] The information input module is used to send the information input into the smart door lock to the information processing module;

[0023] The information processing module is used to: receive input information sent by the information input module and proofread the input information;

[0024] The main power control module is used to control the motor drive module and drive the motor to operate according to the calibration result sent by the information processing module.

[0025] On the basis of the above technical solution, in the third branch:

[0026] The motor is used to drive the lock tongue of the smart door lock to operate through its own rotation to achieve locking and unlocking;

[0027] The motor driving module is used to drive the motor to operate according to the instruction of the main power control module.

[0028] On the basis of the above technical solution, in the third branch:

[0029] The second current limiting resistor R2 is used to cooperate with the main power control module to jointly achieve: limiting the current input to the motor drive module, reducing the current fluctuation of the motor drive module during operation, and limiting the peak current generated during the motor drive module driving the motor to rotate.

[0030] In a second aspect, the present application provides a smart door lock backup power optimization control method based on the system of the first aspect, the method comprising the following steps:

[0031] Step S1: Connect the backup power supply to the backup power supply module to power the smart door lock, and use a diode to prevent the backup power supply from being reversely connected;

[0032] Detect the input current of the backup power supply module to the smart door lock, and the backup power control module cooperates with the first current limiting resistor to reduce the fluctuation of the input current of the backup power supply module and limit the working current output by the backup power control module within a suitable range;

[0033] Step S2: When the unlocking information input by the user into the smart door lock is correct, an unlocking instruction is sent to control the motor drive module to drive the motor to operate and unlock the door;

[0034] The main power control module cooperates with the second current limiting resistor to limit the current input to the motor drive module and reduce the current fluctuation of the motor drive module during operation.

[0035] Based on the above technical solution, step S1 specifically includes the following steps:

[0036] Step 101: Connect the backup power supply to the backup power supply module to power the smart door lock, and use a diode to prevent the backup power supply from being reversely connected;

[0037] Step 102: The power detection module detects the input current of the backup power supply module to supply power to the smart door lock, and transmits the current detection result to the backup power control module;

[0038] Step 103: The backup power supply control module cooperates with the first current limiting resistor to jointly achieve: reducing the fluctuation of the input current of the backup power supply module, and limiting the working current output by the backup power supply control module within a suitable range.

[0039] Based on the above technical solution, step S2 specifically includes the following steps:

[0040] Step 201: The information input module receives the information input by the user into the smart door lock and transmits it to the information processing module;

[0041] Step 202: The information processing module receives the unlocking information transmitted by the information input module and performs proofreading; if the proofreading is correct, the correct unlocking information result is sent to the main power control module; the main power control module sends an unlocking instruction to the motor drive module, and the motor drive module drives the motor to operate according to the unlocking instruction sent by the main power control module to realize unlocking;

[0042] The main power control module cooperates with the second current limiting resistor to achieve: limiting the current input to the motor drive module and reducing the current fluctuation of the motor drive module during operation.

[0043] Based on the above technical solution, step 202 further includes the following steps:

[0044] If the unlocking information input by the proofreading is incorrect, the result indicating that the user input information is incorrect is sent to the main power control module, and the process ends.

[0045] Compared with the prior art, the advantages of the present invention are:

[0046] (1) The present invention uses a backup power supply, for example, a mobile phone, to power the smart door lock through a Type-C interface. The smart door lock can work stably and solves the problems of insufficient backup power supply and excessive peak current during motor rotation.

[0047] (2) The present invention monitors the current of the backup power supply input to the smart door lock in real time, and combines the optimization of the current limiting resistor to further reduce the current fluctuation caused by the rotation of the motor, so that the maximum working current peak of the smart door lock does not exceed the current peak of the backup power supply input to the smart door lock, ensuring that the smart lock can obtain a stable and appropriate power supply and work stably when the backup power supply is powered, effectively improving the stability and compatibility of the smart door lock, allowing various devices with power supply function to be used as a backup power supply for the smart door lock, making the lives of consumers of the smart door lock more convenient and improving the user experience of the smart door lock. BRIEF DESCRIPTION OF THE DRAWINGS

[0048] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0049] Figure 1 This is a schematic diagram of the structure of the intelligent door lock backup power optimization control system in an embodiment of the present invention;

[0050] Figure 2 Flow chart of the intelligent door lock backup power optimization control method according to an embodiment of the present invention;

[0051] Figure 3 Detailed flowchart of step S1 in the embodiment of the present invention.

[0052] Figure 4 Detailed flowchart of step S2 in the embodiment of the present invention.

[0053] In the figure: D1-diode, R1-first current limiting resistor, R2-second current limiting resistor. DETAILED DESCRIPTION

[0054] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application.

[0055] The embodiments of the present invention are further described in detail below with reference to the accompanying drawings.

[0056] In the first aspect, the embodiments of the present application provide a smart door lock backup power optimization control system, see Figure 1 As shown, the system includes three branches:

[0057] First branch: backup power supply module, diode D1, power detection module, backup power control module, first current limiting resistor R1, electrically connected in sequence;

[0058] The second branch: the information input module, the information processing module, and the main power control module are connected in sequence;

[0059] The third branch: the motor, the motor drive module, and the second current limiting resistor R2 are connected in sequence;

[0060] The first current limiting resistor R1 and the second current limiting resistor R2 are both connected to the main power control module.

[0061] Below, the functions of each component of the three branches are described in detail.

[0062] First branch:

[0063] The backup power supply module has a Type-C interface, which is used to: connect to an external backup power supply;

[0064] Diode D1 is a voltage-stabilizing protection diode that reduces power consumption through voltage drop, improves system efficiency, and prevents reverse connection of the backup power supply;

[0065] The power supply detection module is used to detect the input current of the backup power supply module and transmit the current detection result to the backup power supply control module;

[0066] A backup power supply control module is used to: reduce the current fluctuation caused by the rotation of the motor according to the current detection result;

[0067] The first current limiting resistor R1 is used to cooperate with the backup power supply control module to jointly achieve: reducing the fluctuation of the input current of the backup power supply module, and limiting the working current output by the backup power supply control module within a suitable range, for example: 1A.

[0068] Second branch:

[0069] The information input module is used to send the information input into the smart door lock to the information processing module;

[0070] The information processing module is used to: receive input information sent by the information input module and proofread the input information;

[0071] The main power control module is used to control the motor drive module and drive the motor to operate according to the calibration result sent by the information processing module.

[0072] The third branch:

[0073] The motor is used to: drive the lock tongue of the smart door lock to operate through its own rotation to achieve locking and unlocking;

[0074] The motor drive module is used to drive the motor to operate according to the instruction of the main power control module;

[0075] The second current limiting resistor R2 is used to cooperate with the main power control module to achieve: limiting the current input to the motor drive module, reducing the current fluctuation of the motor drive module, and preventing the backup power supply equipment from starting overcurrent protection due to excessive current; limiting the peak current generated during the rotation of the motor by the motor drive module to avoid the smart door lock from freezing and malfunctioning.

[0076] The resistance value of the second current limiting resistor R2 is configured accordingly according to the internal resistance of the motor, and its optimization can be adjusted and improved according to specific circumstances.

[0077] In an embodiment of the present invention, a diode D1, a first current limiting resistor R1, and a second current limiting resistor R2 are added to the system. The diode D1 effectively prevents the backup power supply from being reversed. The first current limiting resistor R1 cooperates with the backup power supply control module to reduce the fluctuation of the input current of the backup power supply module and limit the operating current output by the backup power supply control module to an appropriate range, for example: 1A.

[0078] The second current limiting resistor R2 cooperates with the main power supply control module to limit the current input to the motor drive module, reduce the current fluctuation of the motor drive module, further reduce the current fluctuation caused by the operation of the motor, effectively control the peak current of the motor rotation, and solve the problems of insufficient backup power supply and excessive peak current during motor rotation.

[0079] When different backup power supply devices are used to connect the smart door lock, due to the difference in output current, the smart door lock may not open completely, freeze or malfunction. The embodiment of the present invention ensures that the smart lock can obtain a stable and appropriate power supply and work stably when the backup power supply is supplied by adding a diode D1, a first current limiting resistor R1, and a second current limiting resistor R2, thereby effectively improving the stability and compatibility of the smart door lock, allowing various devices with power supply function to be used as a backup power supply for the smart door lock, making the lives of consumers of the smart door lock more convenient and improving the user experience of the smart door lock.

[0080] In the second aspect, based on the first aspect, an embodiment of the present application provides a smart door lock backup power optimization control method, see Figure 2 As shown, the method comprises the following steps:

[0081] Step S1: Connect the backup power supply to the backup power supply module to power the smart door lock; prevent the backup power supply from being reversely connected by a diode; detect the input current of the backup power supply module to power the smart door lock, and the backup power supply control module cooperates with the first current limiting resistor to reduce the fluctuation of the input current of the backup power supply module, and limit the working current output by the backup power supply control module to a suitable range;

[0082] Step S2: When the unlocking information input by the proofreading user is correct, an unlocking instruction is sent to control the motor drive module to drive the motor to operate and unlock the door; the main power control module cooperates with the second current limiting resistor to limit the current input to the motor drive module and reduce the current fluctuation of the motor drive module.

[0083] See also Figure 3 As shown, step S1 corresponds to the first branch, and specifically includes the following steps:

[0084] Step 101: When the battery power of the smart door lock is low, the backup power supply is connected to the Type-C interface of the backup power supply module to power the smart door lock; the newly added diode D1 is used to prevent the backup power supply from being reversely connected;

[0085] Step 102: The power detection module detects the input current of the backup power supply module to supply power to the smart door lock, and transmits the current detection result to the backup power control module;

[0086] Step 103: The backup power control module cooperates with the newly added first current limiting resistor R1 to jointly achieve: reducing the fluctuation of the input current of the backup power supply module, and limiting the working current output by the backup power control module within a suitable range, for example: 1A.

[0087] See also Figure 4 As shown, step S2 corresponds to the second branch and the third branch, and specifically includes the following steps:

[0088] Step 201: The information input module receives the information input by the user into the smart door lock, such as the unlocking password or the user's fingerprint information, and transmits it to the information processing module;

[0089] Step 202: The information processing module receives the information from the information input module and performs proofreading;

[0090] If the unlocking password entered by the proofreading is correct, or the entered fingerprint information successfully matches one of the fingerprint information entered in advance, the result that the input information is correct is sent to the main power control module; the main power control module sends an unlocking instruction to the motor drive module, and the motor drive module drives the motor to operate according to the unlocking instruction sent by the main power control module to realize unlocking;

[0091] The main power control module works together with the newly added second current limiting resistor R2 to achieve the following: limit the current input to the motor drive module, reduce the current fluctuation of the motor drive module, and prevent the backup power supply equipment from starting overcurrent protection due to excessive current; limit the peak current generated during the rotation of the motor by the motor drive module to avoid the smart door lock from freezing and malfunctioning.

[0092] If the unlocking password entered during proofreading is incorrect, or the entered fingerprint information fails to match one of the fingerprint information entered in advance, the result that the user input information is incorrect is sent to the main power control module, and the process ends.

[0093] In an embodiment of the present invention, diode D1 is used to effectively prevent the backup power supply from being reversely connected. The first current limiting resistor R1 cooperates with the backup power supply control module to reduce the fluctuation of the input current of the backup power supply module and limit the working current output by the backup power supply control module to a suitable range, for example: 1A.

[0094] The second current limiting resistor R2 cooperates with the main power supply control module to limit the current input to the motor drive module, reduce the current fluctuation of the motor drive module, further reduce the current fluctuation caused by the operation of the motor, effectively control the peak current of the motor rotation, and solve the problems of insufficient backup power supply and excessive peak current during motor rotation.

[0095] When different backup power supply devices are used to connect the smart door lock, due to the difference in output current, the smart door lock may not open completely, freeze or malfunction. The embodiment of the present invention ensures that the smart lock can obtain a stable and appropriate power supply and work stably when the backup power supply is supplied by adding a diode D1, a first current limiting resistor R1, and a second current limiting resistor R2, thereby effectively improving the stability and compatibility of the smart door lock, allowing various devices with power supply function to be used as a backup power supply for the smart door lock, making the lives of consumers of the smart door lock more convenient and improving the user experience of the smart door lock.

[0096] In the description of the present application, it should be noted that the terms "upper", "lower", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application 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 cannot be understood as a limitation on the present application. Unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be a connection between the two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to the specific circumstances.

[0097] It should be noted that, in this application, relational terms such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the presence of other identical elements in the process, method, article or device including the elements.

[0098] The above description is only a specific implementation of the present application, so that those skilled in the art can understand or implement the present application. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application will not be limited to the embodiments shown herein, but will conform to the widest range consistent with the principles and novel features applied for herein.

Claims

1. An intelligent door lock backup power optimization control system, characterized in that: The system consists of three branches: The first branch: a backup power supply module, a diode D1, a power detection module, a backup power control module, and a first current limiting resistor R1, which are electrically connected in sequence; The second branch: the information input module, the information processing module, and the main power control module are connected in sequence; The third branch: the motor, the motor drive module, and the second current limiting resistor R2 are connected in sequence; The first current limiting resistor R1 and the second current limiting resistor R2 are both connected to the main power control module.

2. The intelligent door lock backup power optimization control system according to claim 1, characterized in that: In the first branch: The backup power supply module has a Type-C interface for connecting to an external backup power supply; The diode D1 is a voltage stabilizing protection diode to prevent the backup power supply from being reversely connected; The power supply detection module is used to detect the input current of the backup power supply module and transmit the current detection result to the backup power supply control module; The backup power supply control module is used to reduce the current fluctuation caused by the rotation of the motor according to the current detection result.

3. The intelligent door lock backup power optimization control system according to claim 2, characterized in that: In the first branch: The first current limiting resistor R1 is used to cooperate with the backup power supply control module to jointly achieve: reducing the fluctuation of the input current of the backup power supply module and limiting the working current output by the backup power supply control module within a suitable range.

4. The intelligent door lock backup power optimization control system according to claim 1, characterized in that: In the second branch: The information input module is used to send the information input into the smart door lock to the information processing module; The information processing module is used to: receive input information sent by the information input module and proofread the input information; The main power control module is used to control the motor drive module and drive the motor to operate according to the calibration result sent by the information processing module.

5. The intelligent door lock backup power optimization control system according to claim 1, characterized in that: In the third branch: The motor is used to drive the lock tongue of the smart door lock to operate through its own rotation to achieve locking and unlocking; The motor driving module is used to drive the motor to operate according to the instruction of the main power control module.

6. The intelligent door lock backup power optimization control system according to claim 5, characterized in that: In the third branch: The second current limiting resistor R2 is used to cooperate with the main power control module to jointly achieve: limiting the current input to the motor drive module, reducing the current fluctuation of the motor drive module during operation, and limiting the peak current generated during the motor drive module driving the motor to rotate.

7. A smart door lock backup power optimization control method based on the system according to any one of claims 1 to 6, characterized in that: The method comprises the following steps: Step S1: Connect the backup power supply to the backup power supply module to power the smart door lock, and use a diode to prevent the backup power supply from being reversely connected; Detect the input current of the backup power supply module to the smart door lock, and the backup power control module cooperates with the first current limiting resistor to reduce the fluctuation of the input current of the backup power supply module and limit the working current output by the backup power control module within a suitable range; Step S2: When the unlocking information input by the user into the smart door lock is correct, an unlocking instruction is sent to control the motor drive module to drive the motor to operate and unlock the door; The main power control module cooperates with the second current limiting resistor to limit the current input to the motor drive module and reduce the current fluctuation of the motor drive module during operation.

8. The intelligent door lock backup power optimization control method according to claim 7, characterized in that: Step S1 specifically includes the following steps: Step 101: Connect the backup power supply to the backup power supply module to power the smart door lock, and use a diode to prevent the backup power supply from being reversely connected; Step 102: The power detection module detects the input current of the backup power supply module to supply power to the smart door lock, and transmits the current detection result to the backup power control module; Step 103: The backup power supply control module cooperates with the first current limiting resistor to jointly achieve: reducing the fluctuation of the input current of the backup power supply module, and limiting the working current output by the backup power supply control module within a suitable range.

9. The intelligent door lock backup power optimization control method according to claim 7, characterized in that: Step S2 specifically includes the following steps: Step 201: The information input module receives the information input by the user into the smart door lock and transmits it to the information processing module; Step 202: The information processing module receives the unlocking information transmitted by the information input module and performs proofreading; if the proofreading is correct, the correct unlocking information result is sent to the main power control module; the main power control module sends an unlocking instruction to the motor drive module, and the motor drive module drives the motor to operate according to the unlocking instruction sent by the main power control module to realize unlocking; The main power control module cooperates with the second current limiting resistor to achieve: limiting the current input to the motor drive module and reducing the current fluctuation of the motor drive module during operation.

10. The intelligent door lock backup power optimization control method according to claim 9, characterized in that: Step 202 also includes the following steps: If the unlocking information input by the proofreading is incorrect, the result indicating that the user input information is incorrect is sent to the main power control module, and the process ends.

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