Intelligent door lock power supply circuit, intelligent door lock and door

Abstract

The application discloses an intelligent door lock power supply circuit, an intelligent door lock and a door, and relates to the technical field of circuits, wherein the intelligent door lock power supply circuit comprises a first battery, a second battery, a detection module, a first control circuit, a first power consumption system, a control module and a conversion module; the signal input ends of the detection module are connected with the first battery and the second battery respectively, and are used for detecting the plug information and the power information of the first battery and the second battery; the signal output end of the detection module is connected with the signal input end of the control module; the signal output end of the control module is connected with the signal input end of the first control circuit; the output end of the first battery and the output end of the second battery are connected with the input end of the first control circuit respectively; and the output end of the first control circuit is connected with the first power consumption system through the conversion module. Compared with the prior art, the application can make the whole system use the first battery or the second battery for power supply, so that the system works more stably.

Description

Technical Field

[0001] This disclosure relates to the field of circuit technology, and in particular to a power supply circuit for a smart door lock, a smart door lock, and a door. Background Technology

[0002] Door locks are the first line of defense for us when entering and exiting various places. With the development of emerging technologies, door lock manufacturers have provided dual-battery power supply modes to ensure that sufficient power can be continuously, safely and reliably supplied to the door lock system.

[0003] Smart door locks consume a lot of power, requiring users to frequently replace batteries, which seriously affects the user experience. Utility Model Content

[0004] In view of this, this application provides a smart door lock power supply circuit, a smart door lock and a door, which can reduce the isolation circuit while switching between two batteries for power supply and ensuring that the system will not restart.

[0005] To achieve the above objectives, a smart door lock power supply circuit is provided in the first aspect of this application, including: a first battery, a second battery, a detection module, a first control circuit, a first power consumption system, a control module, and a conversion module;

[0006] The signal input terminal of the detection module is connected to the first battery and the second battery respectively, and is used to detect the insertion information and power information of the first battery and the second battery.

[0007] The signal output terminal of the detection module is connected to the signal input terminal of the control module.

[0008] The signal output terminal of the control module is connected to the signal input terminal of the first control circuit.

[0009] The output terminals of the first battery and the second battery are respectively connected to the input terminal of the first control circuit; the output terminal of the first control circuit is connected to the first power consumption system through the conversion module.

[0010] Optionally, the first control circuit includes a first control branch and a second control branch;

[0011] The signal output terminal of the control module is connected to the signal input terminal of the first control branch;

[0012] The input terminal of the first control branch is connected to the output terminal of the first battery, and the output terminal of the first control branch is connected to the input terminal of the first power system through the conversion module.

[0013] The signal output terminal of the control module is simultaneously connected to the signal input terminal of the second control branch.

[0014] The input terminal of the second control branch is connected to the output terminal of the second battery, and the output terminal of the second control branch is connected to the input terminal of the first power system through the conversion module.

[0015] Optionally, the first control branch includes a first resistor, a second resistor, a first capacitor, a first N-type field-effect transistor, a second capacitor, a third resistor, a second N-type field-effect transistor, a fourth resistor, a fifth resistor, a third capacitor, a fourth capacitor, and a first P-type field-effect transistor;

[0016] The first end of the first resistor is connected to the I / O port of the control module. The second end of the first resistor is connected to the second resistor, the first end of the first capacitor, and the gate of the first N-type field-effect transistor. The second resistor, the second end of the first capacitor, and the source of the first N-type field-effect transistor are grounded. The drain of the first N-type field-effect transistor is connected to the second capacitor, the first end of the third resistor, and the gate of the second N-type field-effect transistor. The second end of the second capacitor and the third resistor are connected to the first battery. The source of the second N-type field-effect transistor is grounded. The drain of the second N-type field-effect transistor is connected to the first end of the fourth resistor.

[0017] The second end of the fourth resistor is connected to the fifth resistor, the first end of the third capacitor, and the gate of the first P-type field-effect transistor. The second end of the fifth resistor, the third capacitor, and the source of the first P-type field-effect transistor are connected to the first battery. The drain of the first P-type field-effect transistor and the first end of the fourth capacitor are connected to the input terminal of the first power system through the conversion module. The second end of the fourth capacitor is grounded.

[0018] Optionally, the conversion module includes a first diode, a second diode, a step-down module, and a ground-resistant MOSFET;

[0019] The input terminal of the first diode is connected to the output terminal of the first control circuit, the output terminal of the first diode is connected to the input terminal of the step-down module, the output terminal of the step-down module is connected to the input terminal of the anti-floating ground field-effect transistor, the output terminal of the anti-floating ground field-effect transistor is connected to the input terminal of the second diode, and the output terminal of the second diode is connected to the first power system.

[0020] Optionally, it also includes an emergency power supply module, which is connected to the input terminal of the first battery and / or the input terminal of the second battery.

[0021] Optionally, it may also include a second control circuit and a second power supply system;

[0022] The signal output terminal of the control module is connected to the signal input terminal of the second control circuit.

[0023] The output terminals of the first battery and the second battery are respectively connected to the input terminal of the second control circuit; the output terminal of the second control circuit is connected to the second power system through the conversion module.

[0024] Optionally, the second control circuit includes a third control branch and a fourth control branch;

[0025] The signal output terminal of the control module is connected to the signal input terminal of the third control branch.

[0026] The input terminal of the third control branch is connected to the output terminal of the first battery, and the output terminal of the third control branch is connected to the input terminal of the second power system through the conversion module.

[0027] The signal output terminal of the control module is simultaneously connected to the signal input terminal of the fourth control branch.

[0028] The input terminal of the fourth control branch is connected to the output terminal of the second battery, and the output terminal of the fourth control branch is connected to the input terminal of the second power system through the conversion module.

[0029] Optionally, the third control branch includes a sixth resistor, a third N-type field-effect transistor, a seventh resistor, an eighth resistor, a fifth capacitor, a Zener diode, a sixth capacitor, and a second P-type field-effect transistor;

[0030] The first end of the sixth resistor is connected to the IO port of the control module, the second end of the sixth resistor is connected to the gate of the third N-type field-effect transistor, the source of the third N-type field-effect transistor is grounded, and the drain of the third N-type field-effect transistor is connected to the first end of the seventh resistor.

[0031] The second end of the seventh resistor is connected to the eighth resistor, the first end of the fifth capacitor, and the gate of the second P-type field-effect transistor. The eighth resistor, the second end of the fifth capacitor, and the source of the second P-type field-effect transistor are connected to the first battery through the Zener diode. The drain of the second P-type field-effect transistor and the first end of the sixth capacitor are connected to the second power system. The second end of the sixth capacitor is grounded.

[0032] A second aspect of this application provides a smart lock, including the smart lock power supply circuit described in the first aspect.

[0033] A third aspect of this application provides a door, including the smart door lock described in the second aspect.

[0034] By employing the above technical solution, the smart door lock power supply circuit, smart door lock, and door provided in this application, compared with the existing technology, utilize a first battery, a second battery, a detection module, a first control circuit, a first power system, and a control module in the smart door lock power supply circuit. The signal input terminal of the detection module is connected to both the first and second batteries to detect their connection information and power levels. The signal output terminal of the detection module is connected to the signal input terminal of the control module. The signal output terminal of the control module is connected to the signal input terminal of the first control circuit. The output terminals of the first and second batteries are connected to the input terminal of the first control circuit. The output terminal of the first control circuit is connected to the first power system via a conversion module. This allows the entire system to be powered by either the first or second battery without the need for an isolation circuit, making the system more stable and avoiding abnormal problems caused by power supply differences. Furthermore, this application can switch between the first and second batteries without requiring a system restart during the switching process, improving power supply stability and thus enhancing the user experience.

[0035] The above description is merely an overview of the technical solution of the present invention. In order to better understand the technical means of the present invention and to implement it in accordance with the contents of the specification, and in order to make the above and other objects, features and advantages of the present invention more apparent and understandable, specific embodiments of the present invention are described below. Attached Figure Description

[0036] The accompanying drawings, which are included to provide a further understanding of the invention and form part of this invention, illustrate exemplary embodiments of the invention and are used to explain the invention, but do not constitute an undue limitation of the invention. In the drawings:

[0037] Figure 1 This diagram illustrates the structure of a dual power supply switching circuit according to an embodiment of the present invention.

[0038] Figure 2 A schematic diagram of the circuit structure of a first control branch provided in an embodiment of the present invention is shown;

[0039] Figure 3 A schematic diagram of the circuit structure of a second control branch provided in an embodiment of the present invention is shown;

[0040] Figure 4 This invention provides a schematic diagram of another dual-power switching circuit according to an embodiment of the invention.

[0041] Figure 5 A schematic diagram of the circuit structure of a third control branch provided in an embodiment of the present invention is shown;

[0042] Figure 6A schematic diagram of the circuit structure of a fourth control branch provided in an embodiment of the present invention is shown;

[0043] Figure 1 middle;

[0044] 1-First battery;

[0045] 2-Second battery;

[0046] 3-Detection module;

[0047] 4-First control circuit, 41-First control branch, 42-Second control branch;

[0048] 5- Primary power system;

[0049] 6-Control module;

[0050] 9-Conversion module;

[0051] exist Figure 4 middle:

[0052] 7-Second control circuit, 71-Third control branch, 72-Fourth control branch;

[0053] 8-Secondary power supply system. Detailed Implementation

[0054] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention 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. Therefore, they should not be construed as limitations on this invention.

[0055] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, "a plurality of" means two or more, unless otherwise explicitly specified.

[0056] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., 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; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0057] The present invention will be described in detail below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in the embodiments of the present invention can be combined with each other.

[0058] The following is combined Figures 1 to 6 A power supply circuit for a smart door lock according to some embodiments of the present invention is described.

[0059] This application provides an embodiment of a smart door lock power supply circuit, such as... Figure 1 As shown, the power supply circuit of the smart door lock includes a first battery 1, a second battery 2, a detection module 3, a first control circuit 4, a first power system 5, a control module 6, and a conversion module 9. The control module 6 is connected to the first control circuit 4 and the detection module 3. The signal input terminal of the detection module 3 is connected to the first battery 1 and the second battery 2 respectively, and is used to detect the insertion information and power information of the first battery 1 and the second battery. The signal output terminal of the detection module 3 is connected to the signal input terminal of the control module 6. The signal output terminal of the control module 6 is connected to the signal input terminal of the first control circuit 4. The output terminals of the first battery 1 and the second battery 2 are respectively connected to the input terminal of the first control circuit 4. The output terminal of the first control circuit 4 is connected to the first power system 5 through the conversion module 9.

[0060] In this embodiment, the detection module 3 can detect the battery connection information and battery power information of the first battery 1 and the second battery 2 through the included fuel gauge. The battery connection information indicates whether the battery is in a connected state, i.e., whether it is properly connected; the battery power information indicates the current remaining power of the battery. The control module 6 can send a level control signal to the first control circuit 4 based on the battery connection information and battery power information of the first battery 1 and the second battery 2, so that the first control circuit 4 switches the power supply of the first battery 1 and / or the second battery 2 in response to the level control signal.

[0061] It should be noted that the first power system 5 in this embodiment can be a door lock system or a motor. In the case that the first power system 5 is a door lock system, the second power system 8 can be a motor; in the case that the first power system 5 is a motor, the second power system 8 can be a door lock system.

[0062] Optionally, the first control circuit 4 includes a first control branch 41 and a second control branch 42; the signal output terminal of the control module 6 is connected to the signal input terminal of the first control branch 41; the input terminal of the first control branch 41 is connected to the output terminal of the first battery 1, and the output terminal of the first control branch 41 is connected to the input terminal of the first power system 5 through the conversion module 9; the signal output terminal of the control module 6 is also connected to the signal input terminal of the second control branch 42; the input terminal of the second control branch 42 is connected to the output terminal of the second battery 2, and the output terminal of the second control branch 42 is connected to the input terminal of the first power system 5 through the conversion module 9.

[0063] In some examples, the first control branch 41 and the second control branch 42 are used to provide operating voltage to the first power system 5 through voltage conversion of the first control circuit 4; wherein, in response to determining that the first battery 1 and the second battery 2 meet the battery switching conditions based on battery connection information and battery power information, the control module 6 is used to send level control signals to the first control branch 41 and the second control branch 42, so that the first control branch 41 and the second control branch 42 switch the first battery 1 and / or the second battery 2 to supply power to the first power system 5 in response to the level control signals.

[0064] Optionally, the first control branch 41 and the second control branch 42 respectively include a first resistor, a second resistor, a first capacitor, a first N-type field-effect transistor, a second capacitor, a third resistor, a second N-type field-effect transistor, a fourth resistor, a fifth resistor, a third capacitor, a fourth capacitor, and a first P-type field-effect transistor; the first terminal of the first resistor is connected to the I / O port of the control module, the second terminal of the first resistor is connected to the second resistor, the first terminal of the first capacitor, and the gate of the first N-type field-effect transistor, the second terminal of the second resistor and the first capacitor, and the source of the first N-type field-effect transistor are grounded, and the drain of the first N-type field-effect transistor is connected to the first terminal of the capacitor and the third resistor. The gate of the second N-type field-effect transistor is connected; the second terminal of the second capacitor and the third resistor are connected to the first battery or the second battery; the source of the second N-type field-effect transistor is grounded; the drain of the second N-type field-effect transistor is connected to the first terminal of the fourth resistor; the second terminal of the fourth resistor is connected to the fifth resistor, the first terminal of the third capacitor, and the gate of the first P-type field-effect transistor; the second terminal of the fifth resistor, the third capacitor, and the source of the first P-type field-effect transistor are connected to the first battery or the second battery; the drain of the first P-type field-effect transistor and the first terminal of the fourth capacitor are connected to the input terminal of the first power system through the conversion module 9; and the second terminal of the fourth capacitor is grounded.

[0065] In the embodiments of this application, such as Figure 2As shown, the first control branch 41 may specifically include a first resistor R1096, a second resistor R1095, a first capacitor C841, a first N-type field-effect transistor Q153, a second capacitor C839, a third resistor R1074, a second N-type field-effect transistor Q150, a fourth resistor R959, a fifth resistor R960, a third capacitor C773, a fourth capacitor C772, and a first P-type field-effect transistor Q142. The first terminal of the first resistor R1096 is connected to the I / O port of the control module 6. The second terminal of the first resistor R1096 is connected to the second resistor R1095, the first terminal of the first capacitor C841, and the gate of the first N-type field-effect transistor Q153. The second terminal of the second resistor R1095, the first capacitor C841, and the source of the first N-type field-effect transistor Q153 are grounded. The drain of the first N-type field-effect transistor Q153 is connected to the second capacitor... C839, the first terminal of the third resistor R1074, and the gate of the second N-type field-effect transistor Q150 are connected. The second terminal of the second capacitor C839 and the third resistor R1074 are connected to the first battery 1. The source of the second N-type field-effect transistor Q150 is grounded. The drain of the second N-type field-effect transistor Q150 is connected to the first terminal of the fourth resistor R959. The second terminal of the fourth resistor R959 is connected to the first terminal of the fifth resistor R960, the third capacitor C773, and the gate of the first P-type field-effect transistor Q142. The second terminal of the fifth resistor R960, the third capacitor C773, and the source of the first P-type field-effect transistor Q142 are connected to the first battery 1. The drain of the first P-type field-effect transistor Q142 and the first terminal of the fourth capacitor C772 are connected to the input terminal of the first power system 5 through the conversion module 9. The second terminal of the fourth capacitor C772 is grounded.

[0066] In the embodiments of this application, such as Figure 3As shown, the second control branch 42 may specifically include a first resistor R964, a second resistor R1110, a first capacitor C844, a first N-type field-effect transistor Q121, a second capacitor C840, a third resistor R1092, a second N-type field-effect transistor Q151, a fourth resistor R962, a fifth resistor R963, a third capacitor C775, a fourth capacitor C774, and a first P-type field-effect transistor Q143. The first terminal of the first resistor R964 is connected to the I / O port of the control module 6, the second terminal of the first resistor R964 is connected to the second resistor R1110, the first terminal of the first capacitor C844, and the gate of the first N-type field-effect transistor Q121, the second terminal of the second resistor R1110, the first capacitor C844, and the source of the first N-type field-effect transistor Q121 is grounded, and the drain of the first N-type field-effect transistor Q121 is connected to the second capacitor C844. 840, the first end of the third resistor R1092 and the gate of the second N-type field-effect transistor Q151 are connected; the second capacitor C840 and the second end of the third resistor R1092 are connected to the second battery 2; the source of the second N-type field-effect transistor Q151 is grounded; the drain of the second N-type field-effect transistor Q151 is connected to the first end of the fourth resistor R962; the second end of the fourth resistor R962 is connected to the fifth resistor R963, the first end of the third capacitor C775 and the gate of the first P-type field-effect transistor Q143; the second end of the fifth resistor R963, the third capacitor C775 and the source of the first P-type field-effect transistor Q143 are connected to the second battery 2; the drain of the first P-type field-effect transistor Q143 and the first end of the fourth capacitor C774 are connected to the input terminal of the first power system 5 through the conversion module 9; the second end of the fourth capacitor C774 is grounded.

[0067] In specific application scenarios, the power supply circuit of the smart door lock may further include a conversion module 9. The conversion module 9 includes a first diode, a second diode, a step-down module, and an anti-floating ground field-effect transistor. The input terminal of the first diode is connected to the output terminal of the first control circuit, the output terminal of the first diode is connected to the input terminal of the step-down module, the output terminal of the step-down module is connected to the input terminal of the anti-floating ground field-effect transistor, the output terminal of the anti-floating ground field-effect transistor is connected to the input terminal of the second diode, and the output terminal of the second diode is connected to the first power system. The conversion module 9 is used to convert the output voltage of the first battery 1 and / or the second battery 2 into the operating voltage of the first power system 5. The anti-floating ground field-effect transistor is used to prevent overcharge voltage from being generated when the first battery 1 and / or the second battery 2 are plugged in or unplugged while energized.

[0068] The battery switching conditions may include, but are not limited to, any one of the following:

[0069] (1) The first battery 1 and the second battery 2 are in the plugged-in state, and the first battery 1 is plugged in first, and the battery power of the first battery 1 is greater than or equal to the first preset threshold (e.g., 10%).

[0070] (2) The first battery 1 and the second battery 2 are in the plugged-in state, the battery power of the first battery 1 is greater than or equal to the first preset threshold (e.g., 10%), and the battery power of the second battery 2 is less than the second preset threshold (e.g., 20%).

[0071] (3) The first battery 1 is in the plugged-in state, the second battery 2 is in the unplugged state, and the battery power of the first battery 1 is greater than the first preset threshold (e.g., 10%).

[0072] (4) The first battery 1 and the second battery 2 are in the plugged-in state, and the second battery 2 is plugged in first, and the battery power of the second battery 2 is greater than or equal to the second preset threshold (e.g., 20%).

[0073] (5) The first battery 1 and the second battery 2 are in the plugged-in state, the battery power of the second battery 2 is greater than or equal to the second preset threshold (e.g., 20%), and the battery power of the second battery 2 is less than the first preset threshold (e.g., 10%).

[0074] (6) The second battery 2 is in the plugged-in state, the first battery 1 is in the unplugged state, and the battery power of the second battery 2 is greater than the second preset threshold (e.g., 20%).

[0075] (7) The first battery 1 and the second battery 2 are in the plugged-in state, and the battery power of the first battery 1 is less than the first preset threshold, and the battery power of the second battery 2 is less than the second preset threshold.

[0076] In some examples, the battery switching conditions for the first battery 1 and the second battery 2 under different power levels and whether they are plugged into the machine, as well as the functions that will be restricted and the alarms and prompts that will be given, are explained. For example, if the first battery 1 is plugged into the machine with a power level of ≥10%, and then the second battery 2 with a power level of ≥20% is plugged in, the entire system and motor are powered by the first battery 1. When the first battery 1 has a power level of <10%, the power supply switches to the second battery 2 to power the entire system and motor. Similarly, if the second battery 2 is plugged into the machine with a power level of ≥20%, and then the first battery 1 with a power level of ≥10% is plugged in, the entire system and motor are powered by the second battery 2. When the second battery 2 has a power level of <20%, the power supply switches back to the first battery 1 to power the entire first power system 5 and the motor.

[0077] In this embodiment of the disclosure, the power supply scheme is described as follows: The first battery 1 and the second battery 2 are not prioritized. Whichever battery is plugged in first supplies power to either the first or second power system; the other battery, through logic control of the control branch, does not output power externally. When both batteries are plugged into the machine, once the power of the currently supplying battery reaches a threshold, or when the currently supplying battery is removed, the battery switching circuit actively switches to the other battery for power. Especially when the currently supplying battery is removed, it is crucial to switch to the other battery promptly to prevent the system from restarting and thus avoid impacting the user experience.

[0078] Accordingly, as a possible implementation, in response to the battery switching condition that the first battery 1 and the second battery 2 are in a plugged-in state, with the first battery 1 being plugged in first and its battery charge being greater than or equal to a first preset threshold, or in response to the battery switching condition that the first battery 1 and the second battery 2 are in a plugged-in state, with the first battery charge being greater than or equal to the first preset threshold and the second battery charge being less than a second preset threshold, the level control signal may include a low-level control signal and a high-level control signal. That is, the control module 6 may send a low-level control signal to the first control branch 41 and a high-level control signal to the second control branch 42. At this time, Q150 and Q142 in the first control branch 41 are turned on, and Q153 is not turned on; Q121 in the second control branch 42 is turned on, and Q151 and Q143 are not turned on. That is, the control switches the first battery 1 to supply power to the first power system 5.

[0079] As one possible implementation, in response to the switching condition of the first battery 1 being in a plugged-in state, the second battery 2 being in a non-plugged-in state, and the battery power of the first battery 1 being greater than a first preset threshold, the level control signal at this time may include a low-level control signal, that is, the control module 6 can simultaneously send low-level control signals to the first control branch 41 and the second control branch 42. At this time, Q150 and Q142 in the first control branch 41 are turned on, Q153 is not turned on, and Q121, Q151, and Q143 in the second control branch 42 are not turned on, thus controlling the switching of the first battery 1 to supply power to the first power system 5.

[0080] As one possible implementation, in response to the battery switching condition that the first battery 1 and the second battery 2 are in a plugged-in state, with the second battery 2 being plugged in first and its battery charge being greater than or equal to a second preset threshold, or in response to the battery switching condition that the first battery 1 and the second battery 2 are in a plugged-in state, with the second battery charge being greater than or equal to the second preset threshold and the second battery charge being less than a first preset threshold, the level control signal can include a low-level control signal and a high-level control signal. That is, the control module 6 can send a high-level control signal to the first control branch 41 and a low-level control signal to the second control branch 42. At this time, Q153 in the first control branch 41 is turned on, while Q150 and Q142 are not turned on; Q151 and Q143 in the second control branch 42 are turned on, while Q121 is not turned on. That is, the control switches the second battery 2 to supply power to the first power system 5.

[0081] As one possible implementation, in response to the battery switching condition that the second battery 2 is plugged in, the first battery 1 is not plugged in, and the battery charge of the second battery 2 is greater than a second preset threshold, the level control signal at this time may include a low-level control signal. That is, the control module 6 can simultaneously send low-level control signals to the first control branch 41 and the second control branch 42. At this time, Q151 and Q143 in the second control branch 42 are turned on, Q121 is not turned on, and Q153, Q150, and Q142 in the first control branch 41 are not turned on, thus controlling the switching of the second battery 2 to supply power to the first power system 5.

[0082] As one possible implementation, in response to the battery switching condition that the first battery 1 and the second battery 2 are in a plugged-in state, and the battery power of the first battery 1 is less than a first preset threshold and the battery power of the second battery 2 is less than a second preset threshold, that is, in special circumstances, if the first battery 1 and the second battery 2 are not charged in time, resulting in both the first battery 1 and the second battery 2 having very low power, in order to improve the system power supply capacity, both batteries need to supply power simultaneously. The control module 6 can send low-level control signals to the first control branch 41 and the second control branch 42 at the same time. Then, Q142, Q150, Q151, and Q143 in the first control branch 41 and the second control branch 42 are turned on, while Q153 and Q121 are not turned on. That is, the control switches the first battery 1 and the second battery 2 to supply power to the first power system 5 simultaneously.

[0083] Optional, such as Figure 4 As shown, it also includes a second control circuit 7 and a second power system 8; the signal output terminal of the control module 6 is connected to the signal input terminal of the second control circuit 7; the output terminal of the first battery 1 and the output terminal of the second battery 2 are respectively connected to the input terminal of the second control circuit 7; the output terminal of the second control circuit 7 is connected to the second power system 8 through the conversion module 9.

[0084] It should be noted that the second power system 8 in this application embodiment can be a motor or a door lock system. In the case that the second power system 8 is a door lock system, the first power system 5 can be a motor, and in the case that the second power system 8 is a motor, the first power system 5 can be a door lock system.

[0085] Optionally, the second control circuit 7 includes a third control branch 71 and a fourth control branch 72; the signal output terminal of the control module 6 is connected to the signal input terminal of the third control branch 71; the input terminal of the third control branch 71 is connected to the output terminal of the first battery 1, and the output terminal of the third control branch 71 is connected to the input terminal of the second power system 8 through the conversion module 9; the signal output terminal of the control module 6 is also connected to the signal input terminal of the fourth control branch 72; the input terminal of the fourth control branch 72 is connected to the output terminal of the second battery 2, and the output terminal of the fourth control branch 72 is connected to the input terminal of the second power system 8 through the conversion module 9.

[0086] In this embodiment, the third control branch 71 and the fourth control branch 72 are used to control the first battery 1 and / or the second battery 2 to provide operating voltage to the second power system 8; wherein, in response to switching the first battery 1 to supply power to the first power system 5, the control module 6 is used to send a high-level control signal to the third control branch 71 and a low-level control signal to the fourth control branch 72, so that the third control branch 71 switches the first battery 1 to supply power to the second power system 8 in response to the high-level control signal; or, in response to switching the second battery 2 to supply power to the first power system 5, the control module 6 is used to send a high ...; The fourth control branch 72 sends a high-level control signal and a low-level control signal to the third control branch 71, so that the fourth control branch 72 responds to the high-level control signal and switches the second battery 2 to supply power to the second power system 8; or, in response to switching the first battery 1 and the second battery 2 to supply power to the first power system 5 simultaneously, the control module 6 is used to send high-level control signals to the third control branch 71 and the fourth control branch 72, so that the third control branch 71 and the fourth control branch 72 respond to the high-level control signal and switch the first battery 1 and the second battery 2 to supply power to the second power system 8 simultaneously.

[0087] Optionally, the third control branch 71 and the fourth control branch 72 respectively include a sixth resistor, a third N-type field-effect transistor, a seventh resistor, an eighth resistor, a fifth capacitor, a Zener diode, a sixth capacitor, and a second P-type field-effect transistor; the first end of the sixth resistor is connected to the I / O port of the control module, the second end of the sixth resistor is connected to the gate of the third N-type field-effect transistor, the source of the third N-type field-effect transistor is grounded, and the drain of the third N-type field-effect transistor is connected to the first end of the seventh resistor; the second end of the seventh resistor is connected to the eighth resistor, the first end of the fifth capacitor, and the gate of the second P-type field-effect transistor; the second end of the eighth resistor, the fifth capacitor, and the source of the second P-type field-effect transistor are connected to the first battery or the second battery through the Zener diode; the drain of the second P-type field-effect transistor and the first end of the sixth capacitor are connected to the second power system; and the second end of the sixth capacitor is grounded.

[0088] As an optional approach, such as Figure 5 As shown, the third control branch 71 includes a sixth resistor R1035, a third N-type field-effect transistor Q147, a seventh resistor R1034, an eighth resistor R1033, a fifth capacitor C823, a Zener diode D752, a sixth capacitor C822, and a second P-type field-effect transistor Q148. The first terminal of the sixth resistor R1035 is connected to the I / O port of the control module 6, and the second terminal of the sixth resistor R1035 is connected to the gate of the third N-type field-effect transistor Q147. The source of the third N-type field-effect transistor Q147 is grounded. The drain of the transistor is connected to the first terminal of the seventh resistor R1034; the second terminal of the seventh resistor R1034 is connected to the eighth resistor R1033, the first terminal of the fifth capacitor C823, and the gate of the second P-type field-effect transistor Q148; the eighth resistor R1033, the second terminal of the fifth capacitor C823, and the source of the second P-type field-effect transistor Q148 are connected to the first battery 1 through the Zener diode D752; the drain of the second P-type field-effect transistor Q148 and the first terminal of the sixth capacitor C822 are connected to the second power system 8; and the second terminal of the sixth capacitor C822 is grounded.

[0089] It should be noted that, Figure 5 LOCK-DET-CTL-SUB is the I / O port of the control module 6 connected to the third control branch 71.

[0090] As an optional approach, such as Figure 6As shown, the fourth control branch 72 includes a sixth resistor R971, a third N-type field-effect transistor Q139, a seventh resistor R970, an eighth resistor R859, a fifth capacitor C669, a Zener diode D75, a sixth capacitor C668, and a second P-type field-effect transistor Q146; the first terminal of the sixth resistor R971 is connected to the I / O port of the control module, the second terminal of the sixth resistor R971 is connected to the gate of the third N-type field-effect transistor Q139, the source of the third N-type field-effect transistor Q139 is grounded, and the third N-type field-effect transistor Q139... The drain is connected to the first terminal of the seventh resistor R970; the second terminal of the seventh resistor R970 is connected to the first terminal of the eighth resistor R859, the fifth capacitor C669, and the gate of the second P-type field-effect transistor Q146; the second terminal of the eighth resistor R859, the fifth capacitor C669, and the source of the second P-type field-effect transistor Q146 are connected to the second battery 2 through the Zener diode D75; the drain of the second P-type field-effect transistor Q146 and the first terminal of the sixth capacitor C668 are connected to the second power system; and the second terminal of the sixth capacitor C668 is grounded.

[0091] It should be noted that, Figure 6 In the diagram, LOCK-DET-CTL-MAIN is the I / O port that connects to the control module 6 via the fourth control branch 712.

[0092] As one possible implementation, in response to the first battery 1 supplying power to the first power system 5, the control module 6 sends a high-level control signal to the third control branch 71 and a low-level control signal to the fourth control branch 72. At this time, Q147 and Q148 in the third control branch 71 are turned on, while Q139 and Q146 in the fourth control branch 72 are not turned on, thus controlling the switching of power supply from the first battery 1 to the second power system 8.

[0093] As one possible implementation, in response to the second battery 2 supplying power to the first power system 5, the control module 6 sends a high-level control signal to the fourth control branch 72 and a low-level control signal to the third control branch 71. At this time, Q139 and Q146 in the fourth control branch 72 are turned on, while Q148 and Q155 in the third control branch 71 are not turned on, thus controlling the switching of power supply from the second battery 2 to the second power system 8.

[0094] As one possible implementation, in response to the first battery 1 and the second battery 2 simultaneously supplying power to the first power system 5, the control module 6 can be used to simultaneously send high-level control signals to the third control branch 71 and the fourth control branch 72. At this time, Q147 and Q148 in the third control branch 71 and Q139 and Q146 in the fourth control branch 72 are all turned on, thus controlling the switching of the first battery 1 and the second battery 2 to simultaneously supply power to the second power system 8.

[0095] Optionally, it also includes an emergency circuit; it also includes an emergency power supply module, which is connected to the input terminal of the first battery 1 and / or the input terminal of the second battery 2.

[0096] In specific application scenarios, such as Figure 1 and Figure 4 As shown, the dual-battery smart door lock power supply circuit also includes an emergency power supply module, which is connected to the first battery 1 and the second battery 2, and is used to charge the first battery 1 and the second battery 2. Correspondingly, when powered by USB, the power supply capabilities of commercially available power banks vary. To ensure normal power on / off operation, some functions will be limited, and a charging prompt will be displayed.

[0097] In specific application scenarios, as a preferred method, when switching power supplies, users can establish a wireless communication connection between their mobile phone and the door lock. Through interaction between the terminal and the door lock, the terminal obtains and directly displays the power status of the dual batteries in the door lock, including battery level, charging status, and battery update time. It also dynamically acquires information on the power-consuming functions of the door lock, providing users with reasonable optimization suggestions, guiding them on battery switching methods, and prompting them to check the actual condition of the door or lock. Users can then select and set the door lock's power supply power through the terminal. This allows for selecting the power supply power based on the actual condition of the door or lock, achieving greater energy efficiency and extending the charging time per charge. For example, a regular lock can be locked and unlocked normally using low power, while a high-power lock is needed for a heavy-duty lock, a door with a deadbolt, or a deformed or sunken door. The system also allows users to view the battery level, charging status, and battery switching methods in real time. Furthermore, it provides information on the availability of various functions at different battery levels and allows users to perform one-click power-saving optimizations based on actual usage.

[0098] Specifically, in the power setting interaction, users can select different power supplies based on their actual needs. For standard locks, low power is sufficient for locking and unlocking. However, for locks with excessive weights, locks with deadbolts, or doors that are deformed or sunken, higher power is required. Once the user selects a power supply, it will be set in the lock settings, and the lock will then provide power accordingly. In the battery management interaction, after entering the battery management page, the phone will proactively retrieve the lock's battery usage information and display different statuses, such as battery levels, battery update time, whether the battery is charging, whether the battery has been removed, battery replacement method, the availability of various functions at the current battery level, and power-saving optimization suggestions.

[0099] In addition, the terminal can generate power-saving optimization suggestions for users based on the usage of each power-consuming function of the door lock, allowing users to optimize the power consumption of the door lock through the terminal according to the suggestions. Specifically, when the user performs power-saving optimization, the terminal can also display the current usage of each power-consuming function and provide suggestions on whether optimization is possible. If the user selects power-saving optimization, the terminal will help synchronize the optimization settings to the door lock to achieve the best power-saving mode.

[0100] It should be noted that the embodiments of this application allow users to select the power supply of the door lock according to their actual situation, view the power level of each battery in real time, the status during charging, the tutorial on replacing batteries, etc., and also perform one-click power saving optimization of overall battery usage, meeting the needs of different users for battery usage methods and power saving optimization.

[0101] Compared with existing technologies, this embodiment utilizes a first battery, a second battery, a detection module, a first control circuit, a first power system, and a control module in the power supply circuit of the smart door lock. The signal input terminal of the detection module is connected to both the first and second batteries to detect their connection information and power levels. The signal output terminal of the detection module is connected to the signal input terminal of the control module. The signal output terminal of the control module is connected to the signal input terminal of the first control circuit. The output terminals of the first and second batteries are connected to the input terminal of the first control circuit. The output terminal of the first control circuit is connected to the first power system via a conversion module. This allows the entire system to be powered by either the first or second battery without the need for an isolation circuit, resulting in more stable system operation and preventing abnormal problems caused by power supply differences. Furthermore, this embodiment allows for switching between the first and second batteries without requiring a system restart during the switching process, improving power supply stability and enhancing the user experience.

[0102] Based on the above-described intelligent door lock power supply circuit, this application embodiment also provides an intelligent door lock, including the above-described intelligent door lock power supply circuit.

[0103] Optionally, the aforementioned physical devices may also include a user interface, a network interface, a camera, radio frequency (RF) circuitry, sensors, audio circuitry, a Wi-Fi module, etc. The user interface may include a display screen, input units such as a keyboard, etc., and optional user interfaces may also include USB interfaces, card reader interfaces, etc. The network interface may optionally include standard wired interfaces, wireless interfaces (such as Wi-Fi interfaces), etc.

[0104] Those skilled in the art will understand that the physical device structure provided in this embodiment does not constitute a limitation on the physical device, and may include more or fewer components, or combine certain components, or have different component arrangements.

[0105] Through the above description of the embodiments, those skilled in the art can clearly understand that this application can be implemented by means of software plus necessary general-purpose hardware platforms, or it can be implemented by hardware. Compared with the prior art, this embodiment, through the application of the scheme of this embodiment, uses a first battery, a second battery, a detection module, a first control circuit, a first power consumption system, and a control module in the power supply circuit of the smart door lock; the signal input terminal of the detection module is connected to the first battery and the second battery respectively, for detecting the insertion information and power information of the first battery and the second battery; the signal output terminal of the detection module is connected to the signal input terminal of the control module; the signal output terminal of the control module is connected to the signal input terminal of the first control circuit; the output terminals of the first battery and the second battery are respectively connected to the input terminal of the first control circuit; the output terminal of the first control circuit is connected to the first power consumption system through a conversion module. This allows the entire system to be powered by either the first battery or the second battery without the need for an isolation circuit, making the system work more stably and avoiding abnormal problems caused by power supply differences. Furthermore, this embodiment can also switch between the first battery and the second battery without requiring a system restart during the switching process, which can improve the stability of power supply and thus enhance the user experience.

[0106] It should be noted that, in this document, 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.

[0107] 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 described herein, but is to be accorded the widest scope consistent with the principles and novel features claimed herein.

Claims

1. A power supply circuit for an intelligent door lock, characterized in that, include: The system comprises a first battery, a second battery, a detection module, a first control circuit, a first power consumption system, a control module, and a conversion module. The signal input terminal of the detection module is connected to the first battery and the second battery respectively, and is used to detect the insertion information and power information of the first battery and the second battery. The signal output terminal of the detection module is connected to the signal input terminal of the control module. The signal output terminal of the control module is connected to the signal input terminal of the first control circuit. The output terminals of the first battery and the second battery are respectively connected to the input terminal of the first control circuit; the output terminal of the first control circuit is connected to the first power consumption system through the conversion module.

2. The power supply circuit according to claim 1, characterized in that, The first control circuit includes a first control branch and a second control branch; The signal output terminal of the control module is connected to the signal input terminal of the first control branch; The input terminal of the first control branch is connected to the output terminal of the first battery, and the output terminal of the first control branch is connected to the input terminal of the first power system through the conversion module. The signal output terminal of the control module is simultaneously connected to the signal input terminal of the second control branch. The input terminal of the second control branch is connected to the output terminal of the second battery, and the output terminal of the second control branch is connected to the input terminal of the first power system through the conversion module.

3. The power supply circuit according to claim 2, characterized in that, The first control branch includes a first resistor, a second resistor, a first capacitor, a first N-type field-effect transistor, a second capacitor, a third resistor, a second N-type field-effect transistor, a fourth resistor, a fifth resistor, a third capacitor, a fourth capacitor, and a first P-type field-effect transistor; The first end of the first resistor is connected to the I / O port of the control module. The second end of the first resistor is connected to the second resistor, the first end of the first capacitor, and the gate of the first N-type field-effect transistor. The second resistor, the second end of the first capacitor, and the source of the first N-type field-effect transistor are grounded. The drain of the first N-type field-effect transistor is connected to the second capacitor, the first end of the third resistor, and the gate of the second N-type field-effect transistor. The second end of the second capacitor and the third resistor are connected to the first battery. The source of the second N-type field-effect transistor is grounded. The drain of the second N-type field-effect transistor is connected to the first end of the fourth resistor. The second end of the fourth resistor is connected to the fifth resistor, the first end of the third capacitor, and the gate of the first P-type field-effect transistor. The second end of the fifth resistor, the third capacitor, and the source of the first P-type field-effect transistor are connected to the first battery or the second battery. The drain of the first P-type field-effect transistor and the first end of the fourth capacitor are connected to the input terminal of the first power system through the conversion module. The second end of the fourth capacitor is grounded.

4. The power supply circuit according to claim 1, characterized in that, The conversion module includes a first diode, a second diode, a step-down module, and an anti-floating-ground field-effect transistor; The input terminal of the first diode is connected to the output terminal of the first control circuit, the output terminal of the first diode is connected to the input terminal of the step-down module, the output terminal of the step-down module is connected to the input terminal of the anti-floating ground field-effect transistor, the output terminal of the anti-floating ground field-effect transistor is connected to the input terminal of the second diode, and the output terminal of the second diode is connected to the first power system.

5. The power supply circuit according to claim 1, characterized in that, It also includes an emergency power supply module, which is connected to the input terminal of the first battery and / or the input terminal of the second battery.

6. The power supply circuit according to any one of claims 1 to 5, characterized in that, It also includes a second control circuit and a second power supply system; The signal output terminal of the control module is connected to the signal input terminal of the second control circuit. The output terminals of the first battery and the second battery are respectively connected to the input terminal of the second control circuit; the output terminal of the second control circuit is connected to the second power system through the conversion module.

7. The power supply circuit according to claim 6, characterized in that, The second control circuit includes a third control branch and a fourth control branch; The signal output terminal of the control module is connected to the signal input terminal of the third control branch. The input terminal of the third control branch is connected to the output terminal of the first battery, and the output terminal of the third control branch is connected to the input terminal of the second power system through the conversion module. The signal output terminal of the control module is simultaneously connected to the signal input terminal of the fourth control branch. The input terminal of the fourth control branch is connected to the output terminal of the second battery, and the output terminal of the fourth control branch is connected to the input terminal of the second power system through the conversion module.

8. The power supply circuit according to claim 7, characterized in that, The third control branch includes a sixth resistor, a third N-type field-effect transistor, a seventh resistor, an eighth resistor, a fifth capacitor, a Zener diode, a sixth capacitor, and a second P-type field-effect transistor. The first end of the sixth resistor is connected to the IO port of the control module, the second end of the sixth resistor is connected to the gate of the third N-type field-effect transistor, the source of the third N-type field-effect transistor is grounded, and the drain of the third N-type field-effect transistor is connected to the first end of the seventh resistor. The second end of the seventh resistor is connected to the eighth resistor, the first end of the fifth capacitor, and the gate of the second P-type field-effect transistor. The eighth resistor, the second end of the fifth capacitor, and the source of the second P-type field-effect transistor are connected to the first battery through the Zener diode. The drain of the second P-type field-effect transistor and the first end of the sixth capacitor are connected to the second power system. The second end of the sixth capacitor is grounded.

9. A smart door lock, characterized in that, The power supply circuit includes any one of claims 1 to 8.

10. A door, characterized in that, Including the smart door lock as described in claim 9.

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