Emergency power supply system for smart door and smart door

Abstract

The present invention provides an emergency power supply system for a smart door, comprising: a detection module, configured to detect whether an external power supply device is connected to the smart door; an identification module, electrically connected to the output end of the detection module, configured to identify the charging protocol of the connected external power supply device, and output a corresponding protocol voltage according to the identification result; and a judgment module, receiving the protocol voltage output by the identification module, and judging the magnitude relationship between the protocol voltage and a preset voltage, and selecting to power or charge the smart door based on the judgment result. Through the emergency power supply system of the present invention, the charging protocol of the external power supply device connected to the smart door can be identified, and a dual backup power supply can be used to power the smart door in an emergency situation when the city power is off, so as to realize the emergency opening of the smart door, reduce the user waiting time, and thus improve the user experience.

Description

Technical Field

[0001] The present application belongs to the field of smart home technology, and in particular, relates to an emergency power supply system for a smart door and a smart door. Background Art

[0002] With the advancement and development of science and technology, smart doors are becoming more and more popular. Smart doors usually use fully automatic lock bodies and are powered by mains electricity. When the mains power is cut off, a backup power supply or an external power supply device such as a power bank is used to power the smart door. However, the instantaneous power required for a single switch of the lock body of a smart door is relatively large. Ordinary external power supply devices usually cannot meet the energy requirements of the lock body switch. In addition, the motor generates a peak current at the moment of startup, which easily triggers the overcurrent protection function of the external power supply device, resulting in no voltage and current output of the external power supply device. At this time, the external power supply device needs to charge the backup power supply of the smart door. When the energy is charged to meet the lock body switch, the lock body can open the door. However, in order to ensure the normal working time of the door lock after the user's mains power is cut off, the capacity of the backup power supply is usually large, which leads to a relatively long charging process and a poor user experience.

[0003] Fast charging external power supply equipment can already achieve 20V, 3.25A or higher, but in the absence of protocol communication, the default output voltage value of 5V still cannot meet the energy requirements of the lock body switch.

[0004] The contents of the background technology section are merely the technologies known to the inventors and do not necessarily represent the prior art in the field. Summary of the invention

[0005] In view of one or more defects of the prior art, the present invention provides an emergency power supply system for a smart door, comprising:

[0006] A detection module configured to detect whether an external power supply device is connected to the smart door;

[0007] an identification module, electrically connected to the output end of the detection module, configured to identify the charging protocol of the connected external power supply device and output a corresponding protocol voltage according to the identification result; and

[0008] The judgment module receives the protocol voltage output by the identification module, judges the magnitude relationship between the protocol voltage and a preset voltage, and selects to power or charge the smart door based on the judgment result.

[0009] According to one aspect of the present invention, it also includes an energy storage system, which includes a first charging module and a first energy storage device, the first charging module is electrically connected to the judgment module and the first energy storage device, and the first energy storage device is electrically connected to the entry opening system of the smart door.

[0010] According to one aspect of the present invention, the identification module is also configured to: when it is identified that the charging protocol of the connected external power supply device is a fast charging protocol, output a first voltage to the judgment module; the judgment module is also configured to: receive the first voltage, and judge the relationship between the first voltage and a preset voltage. If the first voltage is greater than or equal to the preset voltage, choose to power the smart door's entry opening system through the first voltage to achieve emergency opening of the smart door.

[0011] According to one aspect of the present invention, the judgment module is also configured to: if the first voltage is greater than or equal to the preset voltage, charge the first energy storage device through the first charging module; the first charging module is configured to: when receiving the door lock opening signal output by the door entry opening system, reduce the charging current output to the first energy storage device.

[0012] According to one aspect of the present invention, the first charging module includes a first charging chip and a first MOS transistor, and the first MOS transistor is used to configure a charging current for charging the first energy storage device.

[0013] When receiving the door lock opening signal output by the door entry opening system, the first MOS tube is turned off, and the first charging chip charges the first energy storage device with a first current;

[0014] When the door lock opening signal output by the door entry opening system is not received, the first MOS tube is turned on, and the first charging chip charges the first energy storage device with a second current, and the first current is smaller than the second current.

[0015] According to one aspect of the present invention, the detection module is further configured to: detect whether the power adapter has a voltage output, and detect whether the home interaction system of the smart door or the remote control system communicating with the smart door outputs a power failure warning signal;

[0016] The first charging module is also configured to: when the power adapter has a voltage output and the power off warning signal is not detected, charge the first energy storage device with a first current; when the power adapter has a voltage output and the power off warning signal is detected, charge the first energy storage device with a second current.

[0017] According to one aspect of the present invention, the energy storage system also includes: a second charging module and a second energy storage device, the second charging module is electrically connected to the judgment module and the second energy storage device, the second energy storage device is electrically connected to the entry opening system of the smart door, and the capacity of the second energy storage device is smaller than the capacity of the first energy storage device.

[0018] According to one aspect of the present invention, the identification module is also configured to: when it is identified that the charging protocol of the connected external power supply device is not a fast charging protocol, output a second voltage to the judgment module; the judgment module is also configured to: receive the second voltage, and judge the relationship between the second voltage and a preset voltage. If the second voltage is less than the preset voltage, choose to charge the second energy storage device through the second voltage.

[0019] According to one aspect of the present invention, the judgment module is further configured to: when the second voltage is less than the preset voltage, charge the second energy storage device through the second charging module.

[0020] According to one aspect of the present invention, it also includes: a power supply selection circuit, which includes a first power supply selection circuit, and the first power supply selection circuit is configured to collect and compare the output voltages of the first energy storage device and the second energy storage device, and select the one with a higher output voltage to power the smart door's entry opening system and / or entry interaction system.

[0021] According to one aspect of the present invention, the power supply selection circuit also includes: a second power supply selection circuit, which is configured to collect and compare the output voltages of the power adapter, the external power supply device, and the energy storage system, and select the one with the highest output voltage to power the smart door's entry opening system and / or entry interaction system.

[0022] The present invention also relates to an intelligent door, comprising:

[0023] The emergency power supply system as described above is configured to supply power to the smart door when the power adapter has no voltage output.

[0024] Through the emergency power supply system of the present invention, the charging protocol of the external power supply device connected to the smart door can be identified, and a dual backup power supply can be used to power the smart door in an emergency situation when the city power is out, thereby realizing emergency opening of the smart door, reducing user waiting time, and thus improving user experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0026] Figure 1 A schematic diagram of an emergency power supply system for a smart door according to an embodiment of the present invention is shown;

[0027] Figure 2 A circuit diagram of a detection module according to a preferred embodiment of the present invention is shown;

[0028] Figure 3 A schematic diagram of a smart door according to a preferred embodiment of the present invention is shown;

[0029] Figure 4 A circuit diagram of an identification module according to a preferred embodiment of the present invention is shown;

[0030] Figure 5A A schematic diagram showing a fast charging external power supply device supplying power or charging a smart door according to a preferred embodiment of the present invention is shown;

[0031] Figure 5B A circuit diagram of a first charging module 1041 according to a preferred embodiment of the present invention is shown;

[0032] Fig. 6A A schematic diagram showing a non-fast charging external power supply device supplying power or charging a smart door according to a preferred embodiment of the present invention is shown;

[0033] Figure 6B shows a circuit diagram of a second charging module 1043 according to a preferred embodiment of the present invention;

[0034] Fig. 7A A schematic diagram showing a method of selecting a first energy storage device or a second energy storage device to supply power to a smart door according to a preferred embodiment of the present invention; and

[0035] Figure 7B A schematic diagram of selecting a power adapter, an external power supply device or an energy storage system to power a smart door according to a preferred embodiment of the present invention is shown. DETAILED DESCRIPTION

[0036] In the following, only some exemplary embodiments are briefly described. As those skilled in the art will appreciate, the described embodiments may be modified in various ways without departing from the spirit or scope of the present invention. Therefore, the drawings and descriptions are considered to be exemplary and non-restrictive in nature.

[0037] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, which are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, "multiple" means two or more, unless otherwise clearly and specifically defined.

[0038] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or can communicate with each other; it can be directly connected, or indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0039] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply means that the first feature is lower in level than the second feature.

[0040] The disclosure below provides many different embodiments or examples to realize different structures of the present invention. In order to simplify the disclosure of the present invention, the parts and settings of specific examples are described below. Of course, they are only examples, and the purpose is not to limit the present invention. In addition, the present invention can repeat reference numbers and / or reference letters in different examples, and this repetition is for the purpose of simplicity and clarity, which itself does not indicate the relationship between the various embodiments and / or settings discussed. In addition, the present invention provides various specific examples of processes and materials, but those of ordinary skill in the art can be aware of the application of other processes and / or the use of other materials.

[0041] The preferred embodiments of the present invention are described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present invention, and are not used to limit the present invention.

[0042] The present invention provides an emergency power supply system for a smart door, which can supply power to the smart door when a power adapter is powered off, so as to realize emergency opening of the smart door.

[0043] Figure 1 FIG. 1 is a schematic diagram of an emergency power supply system 100 for a smart door according to an embodiment of the present invention. Figure 1 As shown, the emergency power supply system 100 includes a detection module 101, an identification module 102 and a judgment module 103. The detection module 101 is configured to detect whether an external power supply device is connected to the smart door; the identification module 102 is electrically connected to the output end of the detection module 101, and is configured to identify the charging protocol of the connected external power supply device, and output the corresponding protocol voltage according to the identification result; the judgment module 103 receives the protocol voltage output by the identification module 102, and determines the relationship between the protocol voltage and the preset voltage, and selects to power or charge the smart door based on the judgment result.

[0044] According to one embodiment of the present invention, the identification module 102 is coupled to the detection module 101. When the detection module 101 detects that an external power supply device is connected to the smart door, the identification module 102 can communicate with the external power supply device through the detection module 101 to obtain information about the charging protocol of the external device, such as whether the external device supports fast charging.

[0045] It should be noted that Figure 1 Although the emergency power supply system 100 is shown as being located outside the smart door, in fact, the emergency power supply system 100 may be built into the smart door. The smart door has an emergency power supply port (refer to Figure 5A ), the external power supply device is connected to the smart door through the emergency power supply port. In addition, powering or charging the smart door is actually to power the electronic devices on the smart door (such as Figure 3 or Figure 5A The home interactive system and home opening system in the system can be used to power or charge the home.

[0046] Figure 2 FIG. 1 shows a circuit diagram of a detection module 101 according to a preferred embodiment of the present invention. Figure 2 As shown, the circuit of the detection module 101 includes a MOS tube Q6, a resistor R34, a resistor R36 and a resistor R37, which are configured to detect whether an external power supply device is connected to the smart door. Specifically, the emergency power supply port of the smart door can be detected (refer to Figure 5A ) whether there is voltage input, that is, whether the voltage value of VCC_BUS is greater than zero (reference Figure 2 ). When it is detected that there is voltage input to the emergency power supply port (that is, the voltage value of VCC_BUS is greater than zero), it is determined that an external power supply device is connected to the smart door. At this time, MOS tube Q6 is turned on, and the external power supply device can supply power or charge the smart door; when it is detected that there is no voltage input to the emergency power supply port (that is, the voltage value of VCC_BUS is zero), it is determined that there is no external power supply device connected to the smart door. At this time, MOS tube Q6 is turned off. Continue to refer to Figure 2 , resistor R34 is a pull-up resistor that is pulled up to the MCU power supply MCU_VCC_3V3 of the main control unit (MCU) of the smart door, and is used to match the level of the MCU. Resistor R36 is a current limiting resistor that limits the current input to the emergency power supply port of the external power supply device to avoid burning the back-end circuit. Resistor R37 is a pull-down resistor for the gate of MOS tube Q6. When there is no voltage input to the emergency power supply port, the gate of MOS tube Q6 can be reliably grounded to prevent interference signals from interfering with MOS tube Q6 and causing MOS tube Q6 to be triggered incorrectly.

[0047] According to a preferred embodiment of the present invention, the external power supply device may also be directly connected to the identification module 102, and the identification module 102 may also detect whether there is an external power supply device connected to the smart door.

[0048] Figure 3 FIG. 2 shows a schematic diagram of a smart door 200 according to a preferred embodiment of the present invention. Figure 3 As shown, the smart door 200 includes a home interaction system 201, a home opening system 202, and an emergency power supply system 100. The home interaction system 201 is electrically connected to the home opening system 202 to receive input instructions from the user, and the home opening system 202 controls the opening or closing of the smart door 200 in response to the instructions input by the user. Optionally, the smart door 200 can also receive input instructions from the user through a remote control system that communicates with the smart door 200, and the remote control system includes but is not limited to a mobile phone, an electronic watch, a bracelet, a remote control, a touch screen speaker, a pad, a notebook, a computer, and the like.

[0049] Figure 4 A circuit diagram of the identification module 102 according to a preferred embodiment of the present invention is shown. When it is detected that an external power supply device is connected to the smart door, the identification module 102 is configured to identify the charging protocol of the external power supply device connected to the smart door, and output the corresponding protocol voltage according to the identification result. When the charging protocol of the connected external power supply device is identified as a fast charging protocol, a first voltage is output to the judgment module 103; when the charging protocol of the connected external power supply device is identified as a non-fast charging protocol, a second voltage is output to the judgment module 103. The following is a detailed description.

[0050] like Figure 4 As shown, U1 is a fast charging power receiving protocol chip, and resistors R1, R2 and capacitor C6 are peripheral design circuits of the fast charging power receiving protocol chip U1. The circuit network MCU_PG, MCU_CFG1, MCU_CFG2, and MCU_CFG3 are signal networks connected to the main control MCU of the smart door, where MCU_PG is the open-drain output terminal of the fast charging power receiving protocol chip U1. The MCU_PG of the fast charging power receiving protocol chip U1 is externally connected to the pull-up resistor R3. By detecting the high and low levels of MCU_PG, it can be determined whether the fast charging power receiving protocol chip U1 has output protocol voltage. The main control MCU can realize voltage output of different protocols by configuring the high and low levels of the three pins MCU_CFG1, MCU_CFG2, and MCU_CFG3 (see the table below for details, 0 represents low level, 1 represents high level), so that the identification module 102 outputs the corresponding protocol voltage.

[0051]

[0052] According to a preferred embodiment of the present invention, the levels of the three pins MCU_CFG1, MCU_CFG2, and MCU_CFG3 are respectively configured as low level, low level, and high level. When it is detected that MCU_PG outputs a low level, it can be determined that the fast charging power receiving protocol chip U1 outputs a first voltage (for example, 12V) to the judgment module 103. When it is detected that MCU_PG outputs a high level, the identification module 102 outputs a second voltage (for example, 5V) to the judgment module 103, and the first voltage is greater than the second voltage.

[0053] In addition, alternatively, it is also possible to implement output configurations of different protocol voltages through pure hardware methods, such as by configuring the resistance value of resistor R5 (R_VSET) (for example, 24K), thereby inducing the fast charging device to output different voltages. According to a preferred embodiment of the present invention, the protocol voltage can be configured to a fixed 12V by configuring an external resistor R_VSET, thereby reducing software operations and reducing system complexity.

[0054] Figure 5AThe figure shows a schematic diagram of a fast charging external power supply device supplying power or charging a smart door according to a preferred embodiment of the present invention. Figure 1 and Figure 5A As shown, the emergency power supply system 100 also includes an energy storage system 104, which is electrically connected to the output end of the judgment module 103 and can supply power to the smart door. The energy storage system 104 includes a first charging module 1041 and a first energy storage device 1042, the input end of the first charging module 1041 is electrically connected to the output end of the judgment module 103, and the output end of the first charging module 1041 is electrically connected to the input end of the first energy storage device 1042; the output end of the first energy storage device 1042 is electrically connected to the home opening system 202 and the home interaction system 201 of the smart door. When the charging protocol of the connected external power supply device is identified as a fast charging protocol, the identification module 102 outputs a first voltage (e.g., 12V) to the judgment module 103, and the judgment module 103 receives the first voltage (e.g., 12V) and judges the magnitude relationship between the first voltage (e.g., 12V) and the preset voltage (e.g., 6V). If the first voltage (e.g., 12V) is greater than or equal to the preset voltage (e.g., 6V), the first voltage (e.g., 12V) is selected to power the smart door's entry opening system 202 to achieve emergency opening of the smart door. Of course, the first voltage (e.g., 12V) can also power the smart door's entry interaction system 201 to receive user input instructions.

[0055] According to a preferred embodiment of the present invention, continue to refer to Figure 5A The judgment module 103 is also configured to: if the first voltage (for example, 12V) is greater than or equal to the preset voltage (for example, 6V), charge the first energy storage device 1042 through the first charging module 1041; the first charging module 1041 is configured to: when the home interaction system 201 receives the door lock opening signal output by the home opening system 202, reduce the charging current output to the first energy storage device 1042 to give priority to the unlocking operation.

[0056] The first charging module 1041 includes a first charging chip and a first MOS tube, wherein the first MOS tube is used to configure a charging current for charging the first energy storage device 1042. When the door lock opening signal output by the home entry opening system is not received, the first MOS tube is turned on, and the first charging chip charges the first energy storage device 1042 with a second current; when the door lock opening signal output by the home entry opening system 202 is received, the first MOS tube is turned off, and the first charging chip charges the first energy storage device 1042 with a first current; the first current is less than the second current.

[0057] Figure 5BFIG. 1 shows a circuit diagram of a first charging module 1041 according to a preferred embodiment of the present invention. Figure 5B As shown, the first charging module 1041 includes a first charging chip U4, and resistors R14, R18, and capacitor C14 are peripheral circuits of the first charging chip U4. Resistors R14 and R18 are used to configure the maximum charging voltage value (e.g., 5V) of the first energy storage device 1042. The first energy storage device 1042 can use a supercapacitor (e.g., Figure 5B As shown in CM1 in FIG), the supercapacitor can withstand tens of thousands of charge and discharge cycles, has the advantages of fast charging speed, long cycle life, and high energy conversion rate, and is suitable as a backup power supply for smart doors. The ISET pin of the first charging chip U4 is used to configure the charging current for charging the first energy storage device 1042. The larger the resistance of the external pull-down resistor, the smaller the charging current. The FAST_CHARGE_EN pin is a control pin connected to the main control MCU, and R25 is the gate pull-down resistor of the first MOS tube Q5, so that the first MOS tube Q5 can be reliably cut off in the absence of a gate drive voltage. When the door lock opening signal output by the entry opening system is received, the FAST_CHARGE_EN pin outputs a low level. At this time, the first MOS tube Q5 is cut off, and the ISET pin of the first charging chip U4 is grounded through R22. The first charging chip U4 charges the first energy storage device 1042 with a first current (for example, 1A), reduces the system temperature rise, and effectively ensures the service life of the emergency power supply system 100. When the door lock opening signal output by the home opening system is not received, the FAST_CHARGE_EN pin outputs a high level. At this time, the first MOS tube Q5 is turned on, R20 and R22 are connected in parallel. It can be seen from the parallel formula that the equivalent resistance after parallel connection is lower than any resistance value of R20 and R22. The first charging chip U4 charges the first energy storage device 1042 with a second current (for example, 1.5A). After being fully charged, the home interaction system 201 or the remote control terminal communicating with the smart door 200 is notified to stop charging the first energy storage device 1042, so that the first energy storage device 1042 can support a sufficiently long standby time (for example, two to three days) and a sufficient number of door openings and closings. For example, for different lock bodies, the door can usually be opened and closed 50 to 60 times.

[0058] In practical applications, the emergency power supply system 100 further includes a first conversion circuit (not shown in the figure) and a second conversion circuit. The first conversion circuit is electrically connected between the judgment module 103 and the first charging module 1041, and is configured to convert the first voltage (e.g., 12V) into a safe voltage (e.g., 5.4V) for charging the first energy storage device 1042. The second conversion circuit is electrically connected to the output end of the first energy storage device 1042, and is configured to convert the output voltage of the first energy storage device 1042 into a second preset voltage (e.g., 8.5V) for powering the smart door.

[0059] The above embodiment describes the situation in which an external power supply device of a fast charging protocol charges the first energy storage device 1042. In fact, the smart door may also include a second energy storage device, and the external power supply device of a fast charging protocol may also charge the second energy storage device 1044. The specific working method is basically the same as that described above for the first energy storage device 102.

[0060] According to a preferred embodiment of the present invention, the detection module 101 is also configured to: detect whether the power adapter of the smart door 200 has a voltage output, and detect whether the home interaction system 201 or the home opening system 202 of the smart door 200 outputs a power off warning signal; the first charging module 1041 is also configured to: when the power adapter has a voltage output and the power off warning signal is not detected, charge the first energy storage device 1042 with a first current (for example, 0.5A); when the power adapter has a voltage output and the power off warning signal is detected, charge the first energy storage device 1042 with a second current (for example, 1A).

[0061] According to a preferred embodiment of the present invention, the energy storage system 104 further includes a second charging module 1043 and a second energy storage device 1044 (refer to Fig. 6A , wherein the first charging module 1041 and the first energy storage device 1042 are omitted), the input end of the second charging module 1043 is electrically connected to the output end of the judgment module 103, and the output end of the second charging module 1043 is electrically connected to the input end of the second energy storage device 1044; the output end of the second energy storage device 1044 is electrically connected to the smart door entry opening system 202, and optionally, the output end of the second energy storage device 1044 is also electrically connected to the smart door entry interaction system 201. The capacity of the second energy storage device 1044 is less than that of the first energy storage device 1042.

[0062] Fig. 6A A schematic diagram showing a non-fast charging external power supply device powering or charging a smart door according to a preferred embodiment of the present invention. Fig. 6A As shown, the judgment module 103 is further configured to: receive the second voltage (e.g., 5V), and judge the magnitude relationship between the second voltage (e.g., 5V) and a preset voltage (e.g., 6V); if the second voltage (e.g., 5V) is less than the preset voltage (e.g., 6V), select to charge the second energy storage device 1044 through the second voltage (e.g., 5V).

[0063] According to a preferred embodiment of the present invention, the judgment module 103 is further configured to charge the second energy storage device 1044 through the second charging module 1043 when the second voltage (eg, 5V) is lower than the preset voltage (eg, 6V).

[0064] According to a preferred embodiment of the present invention, the second charging module 1043 includes a second charging chip and a first resistor, the first resistor is used to configure the charging current for charging the second energy storage device 1044; the second charging chip charges the second energy storage device 1044 with a third current (for example, 1.5A).

[0065] Figure 6B FIG. 1 shows a circuit diagram of the second charging module 1043 according to a preferred embodiment of the present invention. Figure 6B As shown, the second charging module 1043 includes a second charging chip U5, R26, R27, C15 is a standard design reference circuit of the charging chip U5, R26 and R27 are the maximum charging voltage configuration resistors of the second energy storage device 1044. The first resistor R31 is the charging current configuration resistor of the second energy storage device 103. When an external power supply device with a non-fast charging protocol is connected to the smart door, the second energy storage device 1044 (for example, Figure 6B CM2 in the charging, when the second energy storage device 1044 (e.g. Figure 6B After CM2 in the second energy storage device 1044 is charged to an operable voltage, it is boosted by the second conversion circuit, for example, boosted to 8.5V and output to the home opening system 202 for door opening and closing. Since the capacity of the second energy storage device 1044 is smaller than that of the first energy storage device 1042, it can only meet the system's 2 to 3 lock body door opening and closing actions, so the charging time is extremely short, and the second energy storage device 1044 can be charged first. In fact, an external power supply device that is not a fast charging protocol can also charge the first energy storage device 1042.

[0066] According to a preferred embodiment of the present invention, the emergency power supply system 100 further includes a power supply selection circuit for selecting different power supplies for the smart door. The power supply selection circuit preferably includes a first power supply selection circuit 1051 and a second power supply selection circuit 1052, which are described in detail below.

[0067] Fig. 7A FIG. 1 shows a schematic diagram of selecting the first energy storage device 1042 or the second energy storage device 1044 to power the smart door according to a preferred embodiment of the present invention. Fig. 7AAs shown, the first power supply selection circuit 1051 is configured to collect and compare the output voltages of the first energy storage device 1042 and the second energy storage device 1044, and select the one with a higher output voltage to power the smart door's home interaction system 201 and / or home opening system 202. In fact, the output end of the first selection circuit 1051 is also electrically connected to a second conversion circuit to convert the output voltage of the first energy storage device 1042 or the second energy storage device 1044 into a voltage (e.g., 8.5V) at which the home interaction system 201 and / or home opening system 202 can work normally.

[0068] Figure 7B FIG. 1 is a schematic diagram showing a method of selecting a power adapter, an external power supply device or an energy storage system 104 to power a smart door according to a preferred embodiment of the present invention. Fig. 7A As shown, the second power supply selection circuit 1052 is configured to collect and compare the output voltages of the power adapter, the external power supply device, and the energy storage system 104, and select the one with the highest output voltage to power the smart door's home interaction system 201 and / or home opening system 202.

[0069] In actual applications, when the output of the power adapter is normal, the power adapter is used to power the smart door first, and the energy storage system 104 is charged to avoid consuming the power of the energy storage system 104. When the output of the power adapter is abnormal, the smart door can be powered by an external power supply device or the energy storage system 104.

[0070] According to a preferred embodiment of the present invention, when the output of the power adapter is abnormal and there is no external power supply, the first power supply selection circuit 1051 selects the one with the higher output voltage between the first energy storage device 1042 and the second energy storage device 1044 to power the smart door.

[0071] When charging the first energy storage device 1042 and / or the second energy storage device 1044, the charging mode can be set through the home interaction system 201 or the remote control system, optionally, for example, a simultaneous charging mode, a first energy storage device 1042 priority charging mode, and a second energy storage device 1044 priority charging mode.

[0072] According to a preferred embodiment of the present invention, when the output of the power adapter is abnormal and an external power supply device is connected to the smart door, if a fast charging power supply device is connected and the output voltage of the fast charging power supply device is higher than the output voltage of the energy storage system 104, the smart door can be powered by the fast charging power supply device to achieve emergency opening of the smart door and reduce user waiting time; and the first energy storage device 1042 and / or the second energy storage device 1044 can be charged by the fast charging power supply device to avoid consuming the power of the first energy storage device 1042 and the second energy storage device 1044.

[0073] According to a preferred embodiment of the present invention, when the output of the power adapter is abnormal and an external power supply device is connected to the smart door, if a non-fast charging power supply device is connected and the output voltage of the non-fast charging power supply device is higher than the output voltage of the energy storage system 104, the first energy storage device 1042 and / or the second energy storage device 1044 are charged by the non-fast charging power supply device, and the first power supply selection circuit 1051 selects the first energy storage device 1042 and the second energy storage device 1044 with a higher output voltage to power the smart door. Preferably, the second energy storage device 1044 is charged first so as to quickly realize the emergency opening of the smart door and reduce the waiting time for users.

[0074] It should be noted that the power supply to the smart door described in the above embodiment is actually the power supply to the electronic equipment on the smart door, and the electronic equipment includes but is not limited to the above-mentioned home interaction system and home opening system, and the electronic equipment may also include monitoring, doorbells, alarms, etc.; in addition, the charging of the smart door is actually the charging of the energy storage system 104 of the smart door, and the energy storage system includes a first energy storage device 1042 and a second energy storage device 1044. Regarding the selection of the first energy storage device 1042 and the second energy storage device 1044, it is preferably a supercapacitor, which can receive tens of thousands of charge and discharge cycles, has the advantages of fast charging speed, long cycle life, and high energy conversion rate, and is suitable as a backup power supply for the smart door. Of course, in addition to supercapacitors, other batteries such as lithium batteries and rechargeable dry batteries can also be selected, and the present invention is not limited.

[0075] Through the emergency power supply system of the present invention, the charging protocol of the external power supply device connected to the smart door can be identified, and a dual backup power supply can be used to power the smart door in an emergency situation when the city power is out, thereby realizing emergency opening of the smart door, reducing user waiting time, and thus improving user experience.

[0076] The present invention also relates to a smart door 200, referring to Figure 3 , including the emergency power supply system 100 as described above, configured to supply power to the smart door (home interaction system 201, home opening system 202) when the power adapter has no voltage output.

[0077] By adopting the technical solution of the present invention, when the power adapter has no voltage output, multiple guarantees are provided for the battery life of the smart door through an external power supply device or an energy storage system, and the emergency opening of the smart door can be realized. If a fast-charging external power supply device is connected to the smart door, the fast-charging external power supply device can output the working voltage required by the house opening system, and the house opening system directly performs the door opening operation to reduce the user's waiting time; if a non-fast-charging external power supply device is connected to the smart door, the non-fast-charging external power supply device can give priority to fast charging the second energy storage device, and the charging speed is fast. The house opening system is powered by the second energy storage device to realize the emergency opening of the smart door. If there is no external power supply device connected, the emergency opening of the smart door can also be realized by the power of the energy storage system. Regardless of the above methods, the emergency opening of the smart door can be realized, reducing the user's waiting time, thereby improving the customer experience.

[0078] Finally, it should be noted that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. An emergency power supply system for a smart door, comprising: A detection module configured to detect whether an external power supply device is connected to the smart door; an identification module, electrically connected to the output end of the detection module, configured to identify the charging protocol of the connected external power supply device, and output a corresponding protocol voltage according to the identification result; A judgment module receives the protocol voltage output by the identification module, judges the magnitude relationship between the protocol voltage and a preset voltage, and selects to power or charge the smart door based on the judgment result; and An energy storage system, the energy storage system comprising a first charging module and a first energy storage device, the first charging module being electrically connected to the judgment module and the first energy storage device, and the first energy storage device being electrically connected to the entry opening system of the smart door; The identification module is further configured to: when identifying that the charging protocol of the connected external power supply device is a fast charging protocol, output a first voltage to the judgment module; the judgment module is further configured to: receive the first voltage, and judge the magnitude relationship between the first voltage and a preset voltage, and if the first voltage is greater than or equal to the preset voltage, select to power the smart door entry opening system through the first voltage to realize the emergency opening of the smart door; The judgment module is also configured to: if the first voltage is greater than or equal to the preset voltage, charge the first energy storage device through the first charging module; the first charging module is configured to: when receiving the door lock opening signal output by the home entry opening system, reduce the charging current output to the first energy storage device.

2. The power supply system according to claim 1, wherein the first charging module comprises a first charging chip and a first MOS tube, wherein the first MOS tube is used to configure a charging current for charging the first energy storage device. When receiving the door lock opening signal output by the door entry opening system, the first MOS tube is turned off, and the first charging chip charges the first energy storage device with a first current; When the door lock opening signal output by the door entry opening system is not received, the first MOS tube is turned on, and the first charging chip charges the first energy storage device with a second current, and the first current is smaller than the second current.

3. According to the emergency power supply system of claim 2, the detection module is further configured to: detect whether the power adapter has voltage output, and detect whether the home interaction system of the smart door or the remote control system communicating with the smart door outputs a power failure warning signal; The first charging module is also configured to: when the power adapter has a voltage output and the power off warning signal is not detected, charge the first energy storage device with a first current; when the power adapter has a voltage output and the power off warning signal is detected, charge the first energy storage device with a second current.

4. The emergency power supply system according to claim 1, wherein the energy storage system further comprises: A second charging module and a second energy storage device, wherein the second charging module is electrically connected to the judgment module and the second energy storage device, the second energy storage device is electrically connected to the entry opening system of the smart door, and the capacity of the second energy storage device is smaller than that of the first energy storage device.

5. According to the emergency power supply system of claim 4, the identification module is also configured to: when it is identified that the charging protocol of the connected external power supply device is not a fast charging protocol, output a second voltage to the judgment module; the judgment module is also configured to: receive the second voltage, and judge the relationship between the second voltage and the preset voltage. If the second voltage is less than the preset voltage, choose to charge the second energy storage device through the second voltage.

6. The emergency power supply system according to claim 5, wherein the judgment module is further configured to: when the second voltage is less than the preset voltage, charge the second energy storage device through the second charging module.

7. The emergency power supply system according to claim 6, further comprising: A power supply selection circuit, the power supply selection circuit includes a first power supply selection circuit, the first power supply selection circuit is configured to collect and compare the output voltages of the first energy storage device and the second energy storage device, and select the one with the higher output voltage to power the smart door's entry opening system and / or entry interaction system.

8. The power supply system according to claim 7, wherein the power supply selection circuit further comprises: The second power supply selection circuit is configured to collect and compare the output voltages of the power adapter, the external power supply device, and the energy storage system, and select the one with the highest output voltage to power the smart door's entry opening system and / or the entry interaction system.

9. A smart door, comprising: The emergency power supply system as described in any one of claims 1-8 is configured to power the smart door when the power adapter has no voltage output.

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