Smart-door-lock control method and smart door lock
By predicting power consumption time periods and using a super power-saving mode, smart door locks extend battery life, solving battery anxiety and power consumption issues, and achieving efficient battery use.
Patent Information
- Application Number
- PCT/CN2025/097104
- Authority / Receiving Office
- WO · WO
- Patent Type
- Applications
- Current Assignee / Owner
- Priority Date
- 2024-05-29
- Filing Date
- 2025-05-26
- Publication Date
- 2025-12-04
AI Technical Summary
In existing technologies, the battery life of smart door locks is unclear when the battery level is below 20%, causing users to worry about battery life. In addition, frequent wake-ups to update battery information and real-time monitoring result in additional power consumption.
By predicting the power consumption period, the system automatically activates the super power-saving mode, shuts down the static power consumption unit, and only wakes up the dynamic power consumption unit when needed. Combined with the client control function to turn it on and off, this extends battery life.
It effectively extends battery life, reduces static power consumption, reduces user anxiety, and ensures functional integrity and accurate power monitoring.
Smart Images

Figure CN2025097104_04122025_PF_FP_ABST
Abstract
Description
Control methods and smart door locks
[0001] This application claims priority to Chinese Patent Application No. 202410680944.1, filed on May 29, 2024, entitled "Control Method and Smart Lock for Smart Door Lock", the entire contents of which are incorporated herein by reference. Technical Field
[0002] This application relates to the field of smart door lock technology, specifically to a control method for smart door locks and a smart door lock itself. Background Technology
[0003] Smart locks typically remain in a low-power sleep state for extended periods, only recharging their battery when the user wakes them to open the door. Especially when the battery level drops below 20%, the lock will display a low battery warning, but users cannot get precise information about how much longer it can be used, which can easily cause battery anxiety.
[0004] In related technologies, to avoid battery anxiety, smart locks are typically woken up by software at set times each day to update battery information, or battery monitoring is performed in real time. However, both daily wake-up to update battery information and real-time battery monitoring result in additional power consumption. Summary of the Invention
[0005] In view of this, this application provides a control method for a smart door lock and a smart door lock to solve the problem that daily wake-up to update power information and real-time power monitoring will cause additional power consumption.
[0006] Firstly, this application provides a control method for a smart door lock, including:
[0007] Obtain the door opening information of the smart door lock;
[0008] Obtain the current remaining power of the smart lock battery, and predict the first time period when the current remaining power is consumed to the first preset power level based on the preset power consumption model in the smart lock;
[0009] If the door opening information is not obtained within the first time period, the smart door lock will be controlled to activate the super power saving mode after the first time period ends.
[0010] If the door opening information is obtained within the first time period, the current remaining battery power is updated, and the first time period is re-predicted.
[0011] Beneficial effects: By predicting the first time period, when the user does not use the smart lock for a long time due to reasons such as being away for an extended period and cannot replace the battery in time, the smart lock can automatically activate the super power-saving mode based on the predicted first time period to extend the battery life. Furthermore, when the door is opened, the current remaining power is updated and the first time period is re-predicted to prevent the power consumed by each door opening from affecting the originally predicted first time period. This ensures the accuracy of the first time period and guarantees the timely activation of the super power-saving mode.
[0012] In one optional implementation, obtaining the current remaining power of the smart lock battery further includes:
[0013] Based on the power consumption model preset in the smart lock, predict the second time period when the current remaining power is consumed to the second preset power level;
[0014] If the door opening information is not obtained within the second time period, the smart door lock will be automatically woken up after the second time period ends, the current remaining power will be updated, the first time period will be re-predicted, and a low voltage alarm will be sent to the client.
[0015] If the door opening information is obtained within the second time period, the current remaining power is updated, and the first time period and the second time period are re-predicted.
[0016] Wherein, the first preset power level is less than the second preset power level.
[0017] Beneficial effects: When the first preset battery level is lower than the second preset battery level, the second time period prediction allows for a low-voltage alarm to be sent to the client when the user is not using the smart lock due to prolonged absence or inability to replace the battery in time. This alerts the user that the battery is about to run out. The first time period is then re-predicted to obtain a more accurate first time period, ensuring that the smart lock can automatically activate the super power-saving mode in a timely and accurate manner. Furthermore, upon receiving information about the door opening, the remaining battery level is updated, and the first and second time periods are re-predicted. This prevents the power consumed by each door opening from affecting the originally predicted first and second time periods, ensuring the accuracy of the first and second time periods. This guarantees that the smart lock can send low-voltage alarms to the client in a timely manner and ensures the timely activation of the super power-saving mode.
[0018] In one optional implementation, controlling the smart lock to activate the super power-saving mode includes: controlling the smart lock to retain the function of the first static power consumption unit and disable the function of the second static power consumption unit.
[0019] Beneficial effects: The power consumption of a smart door lock consists of dynamic power consumption and static power consumption. The power consumption during the opening process of a smart door lock is mainly related to dynamic power consumption, while the power consumption during standby is mainly related to static power consumption. Therefore, when a user does not use the smart door lock for a long time due to reasons such as being away for an extended period and enters the super power saving mode, controlling the smart door lock to turn off the second static power consumption unit can reduce the overall static power consumption and extend the battery life.
[0020] In one optional implementation, after the smart door lock in the super power-saving mode is woken up by the first static power consumption unit, the second static power consumption unit is turned on after the smart door lock enters the dynamic power consumption state.
[0021] Beneficial effect: The second static power consumption unit is activated after the smart lock is woken up, which can ensure that the user can fully use the functions of the smart lock, so as to facilitate the user to open the door.
[0022] In one optional implementation, after the smart lock in the super power saving mode is woken up by the first static power consumption unit, if no operation information about the smart lock is obtained within a preset timeout period, the smart lock is controlled to restart the super power saving mode.
[0023] Beneficial effect: If no operation information about the smart lock is obtained within the preset timeout period, the smart lock is controlled to restart the super power saving mode to prevent the second static power consumption unit from continuing to waste battery power, thereby extending the battery life.
[0024] In one optional implementation, the first static power consumption unit is a fingerprint unit and an MCU unit, and the second static power consumption unit includes any one or more of a cat eye unit, a touch unit, a Bluetooth broadcast unit, and a radar sensing unit.
[0025] In one optional implementation, the first preset charge level is 10% of the total battery charge.
[0026] In one optional implementation, the second preset charge level is 20% of the total battery charge.
[0027] In one optional implementation, after replacing the battery of the smart door lock, the remaining power of the battery is obtained. If the remaining power is greater than the first preset power, the smart door lock is controlled to automatically exit the super power saving mode.
[0028] Beneficial effects: After replacing the door lock, the super power-saving mode will automatically exit, ensuring a better user experience when using the door lock.
[0029] In one optional implementation, the control method for the smart door lock further includes: controlling the smart door lock to enter a power-saving mode via a client application, wherein the power-saving mode includes controlling the opening or closing of any one or more of the fingerprint unit, peephole unit, touch unit, Bluetooth broadcast unit, and radar sensing unit via the application.
[0030] Beneficial effects: When users do not use the smart lock for extended periods due to reasons such as being away from home, or when users do not wish to use certain functions of the smart lock, they can control the opening or closing of any one or more of the fingerprint unit, peephole unit, touch unit, Bluetooth broadcast unit, and radar sensing unit through the client application to enter power-saving mode.
[0031] Secondly, this application also provides a smart door lock, including a chip circuit, in which a memory and a processor are provided, and the memory and the processor are connected together; wherein, the memory stores computer instructions; the processor executes the computer instructions to perform the control method of the smart door lock described in the first aspect or any corresponding embodiment.
[0032] Furthermore, the present invention provides a computer-readable storage medium storing computer instructions for causing a computer to execute the control method of the smart door lock described in the first aspect or any corresponding embodiment. Attached Figure Description
[0033] To more clearly illustrate the technical solutions in the specific embodiments or related technologies of this application, the drawings used in the description of the specific embodiments or related technologies will be briefly introduced below. Obviously, the drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.
[0034] Figure 1 is a flowchart of a control method for a smart door lock according to an embodiment of this application;
[0035] Figure 2 is another flowchart of a smart door lock control method according to an embodiment of this application;
[0036] Figure 3 is another flowchart of a control method for a smart door lock according to an embodiment of this application;
[0037] Figure 4 is another flowchart of a control method for a smart door lock according to an embodiment of this application. Detailed Implementation
[0038] 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.
[0039] The embodiments of this application are described below with reference to Figures 1 to 4.
[0040] According to embodiments of this application, in one aspect, a control method for a smart door lock is provided, comprising:
[0041] S101. Obtain the smart door lock's opening information;
[0042] S102. Obtain the current remaining power of the smart lock battery, and predict the first time period when the current remaining power is consumed to the first preset power level according to the preset power consumption model in the smart lock.
[0043] S103. If the door opening information is not obtained within the first time period, then after the first time period ends, control the smart door lock to turn on the super power saving mode.
[0044] S104. If the door opening information is obtained within the first time period, the current remaining power is updated, and the first time period is re-predicted.
[0045] By predicting the first time period, when the user does not use the smart lock for an extended period due to reasons such as being away for a long time and is unable to replace the battery in time, the smart lock can automatically activate the super power-saving mode to extend the battery life. Furthermore, when the door is opened, the current remaining power is updated and the first time period is re-predicted to prevent the power consumed by each door opening from affecting the original predicted first time period. This ensures the accuracy of the first time period and guarantees the timely activation of the super power-saving mode.
[0046] In one embodiment, obtaining the current remaining power of the smart lock battery further includes:
[0047] S201. Based on the power consumption model preset in the smart lock, predict the second time period when the current remaining power is consumed to the second preset power.
[0048] S202. If the door opening information is not obtained within the second time period, the smart door lock will be automatically woken up after the second time period ends, the current remaining power will be updated, the first time period will be re-predicted, and a low voltage alarm will be sent to the client.
[0049] S203. If the door opening information is obtained within the second time period, the current remaining power is updated, and the first time period and the second time period are re-predicted.
[0050] Wherein, the first preset power level is less than the second preset power level.
[0051] When the first preset battery level is lower than the second preset battery level, a low-voltage alarm is sent to the client when the user is not using the smart lock due to reasons such as prolonged absence and is unable to replace the battery in time. This alerts the user that the battery is about to run out. The first time period is then re-predicted to obtain a more accurate first time period, allowing the smart lock to automatically activate the super power-saving mode in a timely and accurate manner. Furthermore, upon receiving information about the door opening, the current remaining battery level is updated, and the first and second time periods are re-predicted. This prevents the power consumed by each door opening from affecting the originally predicted first and second time periods, ensuring the accuracy of the first and second time periods. This guarantees that the smart lock can send low-voltage alarms to the client in a timely manner and ensures the timely activation of the super power-saving mode.
[0052] In one embodiment, controlling the smart lock to activate the super power-saving mode includes: controlling the smart lock to retain the function of the first static power consumption unit and disable the function of the second static power consumption unit.
[0053] The power consumption of a smart lock consists of dynamic power consumption and static power consumption. The power consumption during the opening process is mainly related to dynamic power consumption, while the power consumption during standby is mainly related to static power consumption. Therefore, when a user does not use the smart lock for a long time due to reasons such as being away for an extended period and enters the super power-saving mode, controlling the smart lock to turn off the second static power consumption unit can reduce the overall static power consumption and extend the battery life.
[0054] Dynamic power consumption mainly refers to the power consumption generated during the opening process of a smart lock. Dynamic power consumption units typically include biometric recognition units, sound prompt units, light display units, and motor units. The characteristic of dynamic power consumption is generally higher power consumption but shorter duration. The effective opening time of a smart lock is mainly related to dynamic power consumption; that is, the higher the frequency of opening the lock per day, the more dynamic power is consumed, and the shorter the total battery life.
[0055] Static power consumption mainly refers to the power consumed when the smart door lock is in sleep or standby mode. The main static power consumption units include the fingerprint unit, MCU unit, peephole unit, touch unit, Bluetooth broadcast unit, and radar sensing unit. Static power consumption is generally small, but it is consumed continuously for 24 hours. The total standby time of the smart door lock is mainly related to static power consumption. That is, under the same door opening frequency, the higher the static power consumption, the shorter the total battery life.
[0056] Specifically, the system comprises: a peephole unit (for users to remotely wake up the smart lock via Wi-Fi to view peephole video); a touch unit (for users to touch the panel to wake up the smart lock and enter a password); a Bluetooth broadcast unit (for users to connect to and wake up the smart lock via mobile devices such as smartphones and open the door); a radar sensing unit (for users to wake up the smart lock for facial recognition based on human proximity); a fingerprint unit (for users to touch the fingerprint sensor to wake up the smart lock for fingerprint recognition); and an MCU unit (a microcontroller unit with a fixed low-power current).
[0057] Specifically, in this embodiment, the power consumption model (battery life model) is: D = C / (I 动 *T 动 *N+I 静 *T 静 ).
[0058] Where D is the total battery life (days); C is the total battery capacity (mAh); N is the number of times the door is opened per day; I is the current in different scenarios (mA); and T is the duration of the current in different scenarios (h).
[0059] Assuming a total battery capacity of 5000mAh, dynamic power consumption of 400mA (lasting 10 seconds each time), and the door being opened 10 times a day; and static power consumption of 0.5mA (continuous consumption); then the total battery life is:
[0060] As can be seen from the power consumption model above, when user habits are fixed, i.e., the frequency of door opening is constant, the total battery life of a smart lock is inversely proportional to its static power consumption; the lower the static power consumption, the longer the total battery life. Static power consumption is generally related to the overall design architecture of the lock. From a technical perspective, each user-perceptible function corresponds to a specific current consumption, meaning function and power consumption are linked. Therefore, when a user does not use the smart lock for an extended period due to reasons such as being away for a long time and enters the super power-saving mode, controlling the smart lock to disable the second static power consumption unit can reduce the overall static power consumption and extend the battery life.
[0061] In one embodiment, after the smart door lock in the super power saving mode is woken up by the first static power consumption unit, the second static power consumption unit is turned on after the smart door lock enters the dynamic power consumption state.
[0062] The second static power consumption unit is activated after the smart lock is woken up, ensuring that the user can fully use the functions of the smart lock so that the user can open the door.
[0063] In one embodiment, after the smart lock in the super power saving mode is woken up by the first static power consumption unit, if no operation information about the smart lock is obtained within a preset timeout period, the smart lock is controlled to restart the super power saving mode.
[0064] If no operation information about the smart lock is obtained within the preset timeout period, the smart lock will be controlled to restart the super power saving mode to prevent the second static power consumption unit from continuing to waste battery power, thereby extending the battery life.
[0065] In one embodiment, the first static power consumption unit is a fingerprint unit and an MCU unit, and the second static power consumption unit includes any one or more of a cat eye unit, a touch unit, a Bluetooth broadcast unit, and a radar sensing unit.
[0066] The first static power consumption unit consists of the fingerprint unit and the MCU unit. The MCU unit needs to be kept always on to ensure the basic operation of the smart lock, while the fingerprint unit ensures that the smart lock can be woken up. Since the fingerprint unit and the MCU unit only account for 10% of the total static power consumption, keeping them on not only satisfies the basic wake-up function of the smart lock but also reduces static power consumption and extends battery life by about 10 times. Referring to the aforementioned power consumption model and assumed data, the battery life is calculated as follows if the user does not use the smart lock for a long time and turns on the super power-saving mode: D = (5000mAh * 10%) / (0.5mAh * 10% * 24) = 416 days.
[0067] Among them, the battery life of 416 days after the second static power consumption unit is turned off is much longer than the battery life under normal use.
[0068] In one embodiment, the first preset charge is 10% of the total battery charge.
[0069] In one embodiment, the second preset charge level is 20% of the total battery charge.
[0070] In one embodiment, after replacing the battery of the smart door lock, the remaining power of the battery is obtained. If the remaining power is greater than the first preset power, the smart door lock is controlled to automatically exit the super power saving mode.
[0071] After the door lock is replaced, the super power-saving mode will automatically exit, ensuring a better user experience when using the door lock.
[0072] In one embodiment, the control method for the smart door lock further includes: controlling the smart door lock to enter a power-saving mode through a client application, wherein the power-saving mode includes controlling the opening or closing of any one or more of the fingerprint unit, peephole unit, touch unit, Bluetooth broadcast unit, and radar sensing unit through the application.
[0073] When users do not use the smart lock for extended periods due to reasons such as being away from home, or when users do not wish to use certain functions of the smart lock, they can control the opening or closing of any one or more of the fingerprint unit, peephole unit, touch unit, Bluetooth broadcast unit, and radar sensing unit through the client application to enter power-saving mode.
[0074] According to an embodiment of this application, another aspect provides a smart lock for performing the above-described smart lock control method.
[0075] This application also provides a smart door lock, including a chip circuit, in which a memory and a processor are provided and connected together; wherein, the memory stores computer instructions; the processor executes the computer instructions to perform the control method of the smart door lock described in the above embodiments.
[0076] Specifically, the processor can be a central processing unit (CPU). The processor can also be an application-specific integrated circuit (ASIC), a programmable logic device (PLD), or a combination thereof. The aforementioned programmable logic device can be a complex programmable logic device (CLP), a field-programmable gate array (FPGA), a general-purpose array logic (GDA), or any combination thereof.
[0077] The memory stores instructions executable by at least one processor to cause the at least one processor to perform the control method for the smart lock shown in the above embodiments.
[0078] The memory may include volatile memory, such as random access memory; the memory may also include non-volatile memory, such as flash memory, hard disk or solid-state drive; the memory may also include a combination of the above types of memory.
[0079] The chip circuit also includes a communication interface for communication between the chip circuit and other devices or networks.
[0080] This application also provides a computer-readable storage medium in which the methods described in the embodiments of the present invention can be implemented in hardware or firmware, or implemented as recordable on a storage medium, or implemented as computer code originally stored on a remote storage medium or a non-transitory machine-readable storage medium and to be stored on a local storage medium after being downloaded via a network, so that the methods described herein can be stored on such software processing on a storage medium using a general-purpose computer, a special-purpose processor, or programmable or special-purpose hardware.
[0081] The storage medium can be a magnetic disk, optical disk, read-only memory, random access memory, flash memory, hard disk, or solid-state drive, etc.; furthermore, the storage medium can also include combinations of the above types of memory. It is understood that a computer, processor, microprocessor controller, or programmable hardware includes storage components capable of storing or receiving software or computer code, which, when accessed and executed by the computer, processor, or hardware, implements the methods shown in the above embodiments.
[0082] Although embodiments of this application have been described in conjunction with the accompanying drawings, those skilled in the art can make various modifications and variations without departing from the spirit and scope of this application, and all such modifications and variations fall within the scope defined by the appended claims.
Claims
1. A control method for an intelligent door lock, characterized in that, include: Obtain the door opening information of the smart door lock; Obtain the current remaining power of the smart lock battery, and predict the first time period when the current remaining power is consumed to the first preset power level based on the preset power consumption model in the smart lock; If the door opening information is not obtained within the first time period, the smart door lock will be controlled to activate the super power saving mode after the first time period ends. If the door opening information is obtained within the first time period, the current remaining battery power is updated, and the first time period is re-predicted.
2. The control method of the intelligent door lock according to claim 1, wherein The step of obtaining the current remaining power of the smart lock battery also includes: Based on the power consumption model preset in the smart lock, predict the second time period when the current remaining power is consumed to the second preset power level; If the door opening information is not obtained within the second time period, the smart door lock will be automatically woken up after the second time period ends, the current remaining power will be updated, the first time period will be re-predicted, and a low voltage alarm will be sent to the client. If the door opening information is obtained within the second time period, the current remaining power is updated, and the first time period and the second time period are re-predicted. Wherein, the first preset power level is less than the second preset power level. 3.The control method of the intelligent door lock according to claim 1, wherein The control of the smart door lock to activate the super power saving mode includes: controlling the smart door lock to retain the function of the first static power consumption unit and disable the function of the second static power consumption unit.
4. The control method for the smart door lock according to claim 3, characterized in that, After the smart lock is woken up by the first static power consumption unit while it is in the super power saving mode, the second static power consumption unit is activated after the smart lock enters the dynamic power consumption state.
5. The control method for the smart door lock according to claim 4, characterized in that, After the smart lock in the super power saving mode is woken up by the first static power consumption unit, if no operation information about the smart lock is obtained within the preset timeout period, the smart lock is controlled to start the super power saving mode again.
6. The control method for the smart door lock according to any one of claims 3 to 5, characterized in that, The first static power consumption unit is a fingerprint unit and an MCU unit, and the second static power consumption unit includes any one or more of a cat eye unit, a touch unit, a Bluetooth broadcast unit, and a radar sensing unit.
7. The control method for the smart door lock according to claim 1, characterized in that, The first preset charge level is 10% of the total battery charge.
8. The control method for the smart door lock according to claim 2, characterized in that, The second preset charge level is 20% of the total battery charge.
9. The control method for the smart door lock according to any one of claims 1 to 5, 7, and 8, characterized in that, After replacing the battery of the smart door lock, the remaining power of the battery is obtained. If the remaining power is greater than the first preset power, the smart door lock is controlled to automatically exit the super power saving mode. And / or, the control method for the smart door lock further includes: controlling the smart door lock to enter a power-saving mode through a client application, wherein the power-saving mode includes controlling the opening or closing of any one or more of the fingerprint unit, peephole unit, touch unit, Bluetooth broadcast unit and radar sensing unit through the application.
10. A smart door lock, characterized in that, The circuit includes a chip circuit, which incorporates a memory and a processor, with the memory and processor connected together; wherein, The memory stores computer instructions; The processor executes the control method of the smart door lock as described in any one of claims 1 to 9 by executing the computer instructions.
11. A computer-readable storage medium, characterized in that, The computer-readable storage medium stores computer instructions for causing the computer to execute the control method of the smart door lock according to any one of claims 1 to 9.
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