Intelligent door lock standby power supply optimization control system

Through an optimized control system with three branches, the current is monitored and controlled in real time, solving the problems of insufficient power supply and excessive peak current of smart door locks when powered by backup power. This achieves stable operation and high compatibility, and improves the user experience.

CN223625629UActive Publication Date: 2025-12-02SHENZHEN ZHICHENG KELAIDI SCI & TECH LTD
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Patent Information

Application Number
CN202423210300.0
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-23
Publication Date
2025-12-02
Estimated Expiration
2034-12-23

AI Technical Summary

Technical Problem

Existing smart door locks are prone to insufficient power supply or excessive peak current when powered by backup power, which can cause them to malfunction, especially when using devices with limited output current via Type-C interfaces, such as mobile phones.

Method used

The optimized control system employs three branches, including a backup power supply module, diodes, a power detection module, a current-limiting resistor, and a motor drive module. It monitors and controls the current in real time, limiting it within a suitable range to prevent current fluctuations and excessive peak values.

Benefits of technology

Ensuring stable operation of the smart door lock when powered by backup power improves stability and compatibility, avoids problems such as insufficient power supply and motor malfunction, and enhances the user experience.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses an intelligent door lock stand-by power supply optimization control system, which relates to the technical field of intelligent door locks and comprises three branches: a first branch: a stand-by power supply module, a diode D1, a power supply detection module, a stand-by power supply control module and a first current-limiting resistor R1 are electrically connected in sequence; the second branch comprises an information input module, an information processing module and a main power supply control module which are connected in sequence; in the third branch, a motor, a motor driving module and a second current-limiting resistor R2 are connected in sequence; and the first current-limiting resistor R1 and the second current-limiting resistor R2 are both connected with the main power supply control module. The utility model can solve the problems of insufficient power supply of the standby power supply and overlarge peak current in the rotation process of the motor.
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Description

Technical Field

[0001] This utility model relates to the field of smart door lock technology, specifically to a smart door lock backup power optimization control system. Background Technology

[0002] Most smart door locks on the market currently use batteries as their main power source. While this design provides enough power for daily operation, users usually need to find a backup power source when the battery runs out.

[0003] Because the output current of the Type-C interface of different devices varies, if the output current of the backup power supply to the smart lock is too small, it will not be able to meet the startup requirements of the smart lock, which will cause the lock to not be able to open completely or to open abnormally slowly. If the output current is too large, it may damage the internal circuit components of the smart lock, and may even cause the 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, typically 0.9A, 1.5A, or a maximum of 3A.

[0005] If the peak current is too high during motor rotation and the output current of the backup power supply exceeds the maximum rated output value, the backup power supply will protect itself and stop the current output, making the smart door lock unusable.

[0006] Therefore, the backup power supply has limited input current to the smart lock, resulting in insufficient power supply; it is also prone to triggering the protection mechanism due to high current, which stops the output of high current, causing the smart lock to be unable to work stably. Utility Model Content

[0007] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide an intelligent door lock backup power optimization control system that can solve the problems of insufficient backup power supply and excessive peak current during motor rotation.

[0008] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0009] This application provides a smart door lock backup power optimization control system, which includes three branches:

[0010] The first branch consists of the backup power supply module, diode D1, power detection module, backup power control module, and first current limiting resistor R1, which are connected in sequence.

[0011] The second branch consists of an information input module, an information processing module, and a main power control module, 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] Based on the above technical solution, in the first branch:

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

[0016] The diode D1 is a voltage regulator protection diode to prevent reverse connection of the backup power supply;

[0017] The power 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 control module;

[0018] The backup power control module is used to reduce current fluctuations caused by motor rotation based on current detection results.

[0019] Based on the above technical solution, in the first branch:

[0020] The first current-limiting resistor R1 is used to work with the backup power control module to reduce the fluctuation of the input current of the backup power supply module and limit the output current of the backup power control module to a suitable range.

[0021] Based on 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 from the information input module and verify the input information;

[0024] The main power control module is used to: control the motor drive module to drive the motor to run based on the calibration results sent by the information processing module.

[0025] Based on the above technical solution, in the third branch:

[0026] The motor is used to drive the bolt of the smart door lock to rotate through its own rotation, thereby locking and unlocking the door.

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

[0028] Based on the above technical solution, in the third branch:

[0029] The second current-limiting resistor R2 is used in conjunction with the main power control module to: limit the current input to the motor drive module, reduce the current fluctuation of the motor drive module, and limit the peak current generated by the motor drive module during the motor rotation process.

[0030] Compared with the prior art, the advantages of this utility model are:

[0031] (1) This utility model uses a backup power source, such as a mobile phone, to power the smart door lock through the Type-C interface. The smart door lock can work stably, and at the same time solves the problems of insufficient backup power supply and excessive peak current during motor rotation.

[0032] (2) This utility model monitors the current input to the smart lock from the backup power supply in real time. Combined with the optimization of the current limiting resistor, it further reduces the current fluctuation caused by the motor rotation, so that the peak value of the highest working current of the smart lock does not exceed the peak value of the current input to the smart lock from the backup power supply. This ensures that the smart lock can obtain a stable and suitable power supply when the backup power supply is on, and can work stably. This effectively improves the stability and compatibility of the smart lock, and allows various devices with power supply functions to be used as backup power for the smart lock, making the lives of smart lock consumers more convenient and improving the user experience of smart lock users. Attached Figure Description

[0033] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0034] Figure 1 This is a schematic diagram of the intelligent door lock backup power optimization control system in an embodiment of this utility model.

[0035] In the diagram: D1 - diode, R1 - first current-limiting resistor, R2 - second current-limiting resistor. Detailed Implementation

[0036] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0037] The embodiments of this utility model will be further described in detail below with reference to the accompanying drawings.

[0038] An embodiment of this application provides a smart door lock backup power optimization control system, see [link to relevant documentation]. Figure 1 As shown, the system includes three branches:

[0039] The first branch consists of the backup power supply module, diode D1, power detection module, backup power control module, and first current limiting resistor R1, which are connected in sequence.

[0040] The second branch consists of an information input module, an information processing module, and a main power control module, connected in sequence.

[0041] The third branch: the motor, the motor drive module, and the second current-limiting resistor R2 are connected in sequence;

[0042] The first current-limiting resistor R1 and the second current-limiting resistor R2 are both connected to the main power control module.

[0043] The function of each component in the three branch circuits will be explained in detail below.

[0044] First branch road:

[0045] The backup power supply module has a built-in Type-C interface, which is used to connect to an external backup power source.

[0046] Diode D1 is a Zener diode that reduces power consumption, improves system efficiency, and prevents reverse connection of the backup power supply by reducing voltage drop.

[0047] The power detection module is used to detect the input current of the backup power supply module and transmit the current detection results to the backup power control module.

[0048] The backup power control module is used to: reduce current fluctuations caused by motor rotation based on current detection results;

[0049] The first current-limiting resistor R1 is used in conjunction with the backup power control module to reduce the fluctuation of the input current of the backup power supply module and limit the output current of the backup power control module to a suitable range, such as 1A.

[0050] Second branch road:

[0051] The information input module is used to send the information input into the smart door lock to the information processing module.

[0052] The information processing module is used to: receive input information from the information input module and verify the input information;

[0053] The main power control module is used to control the motor drive module and drive the motor to run based on the calibration results sent by the information processing module.

[0054] Third branch road:

[0055] The motor is used to drive the bolt of the smart door lock to lock and unlock by rotating itself.

[0056] The motor drive module is used to drive the motor to operate according to the instructions of the main power control module.

[0057] The second current-limiting resistor R2 is used in conjunction with the main power control module to: limit the current input to the motor drive module, reduce the current fluctuation of the motor drive module, and prevent excessive current from causing the backup power equipment to activate overcurrent protection; limit the peak current generated by the motor drive module during motor rotation, and avoid the smart door lock from freezing or malfunctioning.

[0058] The value of the second current-limiting resistor R2 is configured according to the internal resistance of the motor, and its optimization can be adjusted and improved according to specific circumstances.

[0059] In this embodiment of the 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 reverse-connected. The first current-limiting resistor R1, in conjunction with the backup power supply control module, reduces the fluctuation of the input current of the backup power supply module and limits the output operating current of the backup power supply control module to a suitable range, such as 1A.

[0060] The second current-limiting resistor R2, in conjunction with the main power control module, limits the current input to the motor drive module, reduces the current fluctuation of the motor drive module, further reduces the current fluctuation caused by motor operation, effectively controls the peak current of motor rotation, and solves the problems of insufficient backup power supply and excessive peak current during motor rotation.

[0061] When different backup power devices are connected to a smart lock, the difference in output current can cause the smart lock to not open completely, freeze, or malfunction. This embodiment of the invention, by adding a diode D1, a first current-limiting resistor R1, and a second current-limiting resistor R2, ensures that the smart lock can obtain a stable and suitable power supply when powered by a backup power source, thus ensuring stable operation. This effectively improves the stability and compatibility of the smart lock, allowing various devices with power supply functions to serve as backup power sources for the smart lock, making life more convenient for smart lock consumers and enhancing the user experience.

[0062] In the description of this application, it should be noted that the terms "upper," "lower," etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application. Unless otherwise expressly specified and limited, the terms "installed," "connected," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication between two elements. For those skilled in the art, the specific meaning of the above terms in this application can be understood according to the specific circumstances.

[0063] It should be noted that in this application, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0064] The above description is merely a specific embodiment of this application, enabling those skilled in the art to understand or implement this application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of this application. Therefore, this application is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features claimed herein.

Claims

1. A smart door lock backup power optimization control system, characterized in that, The system includes three branches: The first branch consists of the backup power supply module, diode D1, power detection module, backup power control module, and first current limiting resistor R1, which are connected in sequence. The second branch consists of an information input module, an information processing module, and a main power control module, 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 as described in claim 1, characterized in that: In the first branch: The backup power supply module has a built-in Type-C interface for connecting to an external backup power source.

3. The intelligent door lock backup power optimization control system as described in claim 2, characterized in that: In the first branch: The diode D1 is a voltage regulator diode to prevent reverse connection of the backup power supply.

4. The intelligent door lock backup power optimization control system as described in claim 3, characterized in that: In the first branch: The power 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 control module.

5. The intelligent door lock backup power optimization control system as described in claim 4, characterized in that: In the first branch: The backup power control module is used to reduce current fluctuations caused by motor rotation based on current detection results.

6. The intelligent door lock backup power optimization control system as described in claim 5, characterized in that: In the first branch: The first current-limiting resistor R1 is used to work with the backup power control module to reduce the fluctuation of the input current of the backup power supply module and limit the output current of the backup power control module to a suitable range.

7. The intelligent door lock backup power optimization control system as described in 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 from the information input module and verify the input information.

8. The intelligent door lock backup power optimization control system as described in claim 7, characterized in that: In the second branch: The main power control module is used to: control the motor drive module to drive the motor to run based on the calibration results sent by the information processing module.

9. The intelligent door lock backup power optimization control system as described in any one of claims 1 to 8, characterized in that: In the third branch: The motor is used to drive the bolt of the smart door lock to rotate through its own rotation, thereby achieving locking and unlocking; The motor drive module is used to drive the motor to operate according to the instructions of the main power control module.

10. The intelligent door lock backup power optimization control system as described in claim 9, characterized in that: In the third branch: The second current-limiting resistor R2 is used in conjunction with the main power control module to: limit the current input to the motor drive module, reduce the current fluctuation of the motor drive module, and limit the peak current generated by the motor drive module during the motor rotation process.