Intelligent door lock and control system thereof

Abstract

The present invention provides an intelligent door lock and a control system thereof, the control system comprises a main control board, a first detection component and a sensing component, the first detection component and the sensing component are respectively electrically connected or signal-connected to the main control board; the sensing component is adapted to the lock body square shaft, and is used to detect the starting action of the lock body square shaft from static to rotation and send a wake-up signal to the main control board; the main control board is in a dormant state until it receives the wake-up signal sent by the sensing component, and the main control board is also used to wake up the first detection component after being awakened; the first detection component is adapted to the lock body square shaft, and sends the detected angular displacement of the lock body square shaft rotation to the main control board. The control system provided by the present invention has a simple structure and a high detection accuracy of the movable parts.

Description

Technical Field

[0001] The present invention relates to the technical field of door locks, and in particular to an intelligent door lock and a control system thereof. Background Art

[0002] With the development of the times, the popularity of smart door locks is getting higher and higher. Door locks from different manufacturers, and even door locks of different models from the same manufacturer, will choose different transmission mechanisms and sensors based on different IDs and structures to form a complex system of multi-sensor collaboration. When designing smart door locks, the three core issues that need to be considered include: how to accurately detect the rotation of the square shaft of the lock body, how to accurately detect the rotation of the motor output shaft, and how to detect the movement of the square shaft of the lock body with low power consumption in standby mode. The current smart door locks have the following main shortcomings in solving the above three problems: the transmission mechanism has a complex structure, the sensor has a large cumulative error, and the reliability is poor. Therefore, how to streamline the structure of smart door locks and improve the detection accuracy of moving parts has become a technical problem that needs to be solved urgently by those skilled in the art. Summary of the invention

[0003] In view of this, the present invention provides an intelligent door lock and a control system thereof, wherein the control system has a simple structure and a high detection accuracy of movable parts.

[0004] In order to achieve the above object, the present invention provides the following technical solutions:

[0005] A control system for an intelligent door lock comprises a main control board, a first detection component and a sensing component, wherein the first detection component and the sensing component are respectively electrically connected or signal-connected to the main control board;

[0006] The sensing component is adapted to the lock body square shaft, and is used to detect the starting action of the lock body square shaft from being stationary to rotating and send a wake-up signal to the main control board;

[0007] The main control board is in a dormant state until receiving the wake-up signal sent by the sensing component, and after being awakened, the main control board is also used to wake up the first detection component;

[0008] The first detection component is adapted to the lock body square shaft, and sends the detected angular displacement of the lock body square shaft to the main control board.

[0009] Optionally, in the above control system, the control system further comprises a gear box and a transmission assembly, wherein the gear box integrates a motor and a gear assembly; the transmission assembly comprises a driving gear and a driven member; the driving gear is transmission-connected to the motor, and the driven member is coaxially transmitted with the square shaft of the lock body;

[0010] The first detection component includes a rotating member drivingly connected to the driven member, and an angle sensor coaxially arranged with the rotating member. The angle sensor is connected to the rotating member and is used to collect angle signals and output them to the main control board.

[0011] Optionally, in the above-mentioned control system, the sensing component includes a first sensing element and a second sensing element, the first sensing element is fixedly mounted on the driven member or the rotating member, and the second sensing element is fixedly mounted on the lock body, and when the square shaft of the lock body rotates, the first sensing element and the second sensing element can rotate relative to each other, and trigger the second sensing element to send the wake-up signal to the main control board.

[0012] Optionally, in the above control system, the first sensing element is a first magnetic member, and the second sensing element is a Hall sensor.

[0013] Optionally, in the above control system, the driven member and the rotating member are gears meshing with each other, and the rotating member is located radially to the side of the driven member.

[0014] Optionally, in the above-mentioned control system, the control system also includes a second detection component electrically or signal-connected to the main control board, the second detection component is connected or adapted to the transmission component, and sends the angular displacement of the output shaft of the motor detected by the transmission component to the main control board.

[0015] Optionally, in the above control system, the transmission assembly further comprises an intermediate gear coaxially arranged with the driven member, the intermediate gear meshes with the driving gear, and the intermediate gear and the driven member are provided with mutually cooperating virtual position rotation connection structures;

[0016] The second detection component includes a third sensing element and a fourth sensing element. The third sensing element is fixedly mounted on the intermediate gear or the driving gear, and the fourth sensing element is fixedly mounted on the lock body. When the output shaft of the motor rotates, the third sensing element and the fourth sensing element can rotate relative to each other and trigger the fourth sensing element to detect the angular displacement of the third sensing element.

[0017] Optionally, in the above control system, the intermediate gear and the driving gear are both bevel gears.

[0018] Optionally, in the above control system, the third sensing element is a second magnetic member, and the fourth sensing element is a magnetic encoder.

[0019] Optionally, in the above control system, the outer diameter of the intermediate gear is 2 to 3 times the outer diameter of the driven member, and the angle sensor is located between the rotating member and the intermediate gear.

[0020] A smart door lock comprises a control system as disclosed in any one of the above items.

[0021] According to the above technical solution, in the control system for the smart door lock provided by the present invention, the first detection component and the sensing component are respectively electrically connected or signal connected to the main control board. When working, once the square shaft of the lock body rotates, the sensing component can immediately wake up the main control board, and the main control board then wakes up the first detection component, and the first detection component detects the angular displacement of the square shaft of the lock body in real time. The sensing component can detect the movement of the square shaft of the lock body with low power consumption in the standby state, and wake up the first detection component when the square shaft of the lock body starts to rotate, which is conducive to timely detection of the angular displacement of the square shaft of the lock body, thereby improving the accuracy of detection. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying creative work.

[0023] Figure 1 is a schematic diagram of a control system of a smart door lock provided by an embodiment of the present invention;

[0024] Figure 2 yes Figure 1 A partial schematic diagram of the back side of the middle substrate 4.

[0025] The markings in the figure are:

[0026] 1. Driven part; 2. Rotating part; 3. Angle sensor; 4. Base plate; 5. Intermediate gear; 6. Gear box; 7. Driving gear. DETAILED DESCRIPTION

[0027] For ease of understanding, the present invention is further described below in conjunction with the accompanying drawings.

[0028] See also Figure 1 and Figure 2 , Figure 1 is a schematic diagram of a control system of a smart door lock provided by an embodiment of the present invention, Figure 2 yes Figure 1 A partial schematic diagram of the back side of the middle substrate 4.

[0029] The control system for a smart door lock provided by an embodiment of the present invention includes a main control board (not shown in the figure), a first detection component and a sensing component, and the first detection component and the sensing component are respectively electrically connected or signal-connected to the main control board. Among them, the sensing component is adapted to the square shaft of the lock body, and is used to detect the starting action of the square shaft of the lock body from static to rotation and send a wake-up signal to the main control board. The main control board is in a dormant state until it receives the wake-up signal sent by the sensing component. After the main control board is awakened, it is also used to wake up the first detection component. The first detection component is adapted to the square shaft of the lock body, and sends the detected angular displacement of the rotation of the square shaft of the lock body to the main control board.

[0030] Specifically, the control system also includes a gear box 6 and a transmission assembly. The gear box 6 integrates a motor and a gear assembly. The transmission assembly includes a driving gear 7 and a driven member 1. The driving gear 7 is connected to the motor. The driven member 1 is coaxially driven with the square shaft of the lock body. The motor can drive the square shaft of the lock body to rotate through the transmission assembly to realize the opening and closing of the lock body. The driven member 1 is also coaxially driven with the door inner knob, which is a knob located on the inside of the door for locking and unlocking.

[0031] like Figure 1 As shown, the first detection component includes a rotating member 2 that is transmission-connected to the driven member 1, and an angle sensor 3 that is coaxially arranged with the rotating member 2. The angle sensor 3 is connected to the rotating member 2, and is used to collect angle signals and output them to the main control board. The main control board can determine the locked and unlocked states of the door lock according to the rotation angle of the square shaft of the lock body.

[0032] When there is no locking or unlocking action, the main control board is in a dormant state to reduce power consumption. Once the square shaft of the lock body rotates, the active board is quickly awakened by the sensing component for subsequent control. In order to detect the start-up action of the square shaft of the lock body from static to rotating, the sensing component includes a first sensing element and a second sensing element. The first sensing element is fixedly mounted on the driven part 1 or the rotating part 2, and the second sensing element is fixedly mounted on the lock body. When the square shaft of the lock body rotates, the first sensing element and the second sensing element can rotate relative to each other, and trigger the second sensing element to send a wake-up signal to the main control board.

[0033] The first sensing element and the second sensing element may be a first magnetic member or a Hall sensor. The sensing element of the sensing assembly may be installed on either the driven member 1 or the rotating member 2. Taking the setting on the driven member 1 as an example, the number of the Hall sensors and / or the first magnetic member may be more than two, and they are evenly arranged around the rotation axis of the driven member 1. Specifically, the number of the Hall sensors may be at least two, and they are evenly arranged around the rotation axis of the driven member 1, or the number of the first magnetic members may be at least two, and they are evenly arranged around the rotation axis of the driven member 1, or the number of the Hall sensors and the number of the first magnetic members may both be at least two, and the Hall sensors and the first magnetic members are evenly arranged around the rotation axis of the driven member 1, respectively. In this case, the number of the two may be the same or different.

[0034] In addition, since the square shaft of the lock body and the knob inside the door are both coaxially transmitted with the follower 1, the first magnetic part can be selected to be fixedly connected to the square shaft of the lock body, the follower 1 or the knob inside the door, so as to achieve relative fixation between the first magnetic part and the square shaft of the lock body, and the Hall sensor can be welded and fixed on the main control board, and electrically or signal-connected to the main control board, so as to achieve rotation relative to the first magnetic part and send a wake-up signal to the main control board.

[0035] In this embodiment, the first sensing element is the first magnetic part, and the second sensing element is the Hall sensor, so that the overall solution of the sensing component is simple and reliable, and the Hall sensor and the first magnetic part can be triggered without direct contact, which is convenient for installation and arrangement, and has low cost. At the same time, there will be no wear due to friction between the two, which is conducive to ensuring the service life.

[0036] In other embodiments, the sensing component may also adopt other implementations such as infrared tubes, brushes, etc., as long as it can detect the starting action of the lock body square shaft from static to rotating and send a wake-up signal to the main control board.

[0037] In specific practical applications, the driven member 1 and the rotating member 2 may be gears meshing with each other, such as Figure 1 As shown, in order to facilitate arrangement in the housing of the lock body, the rotating member 2 is generally located to the side of the driven member 1 in the radial direction.

[0038] like Figure 1 As shown, in this embodiment, the transmission assembly further includes an intermediate gear 5, which is coaxially arranged with the driven member 1 and meshes with the driving gear 7. Figure 2 It can be seen from the back of the displayed substrate 4 that the intermediate gear 5 and the follower 1 are provided with mutually cooperating virtual position rotation connection structures. If the intermediate gear 5 rotates in one direction, it will engage with the follower 1 and drive the follower 1 to rotate together, and then the intermediate gear 5 rotates back. When the virtual position rotation stroke is not exceeded, the follower 1 does not rotate with the intermediate gear 5, thus leaving space for manual rotation of the follower 1 for the door knob.

[0039] The motor can drive the lock body square shaft to rotate through the driving gear 7, the intermediate gear 5 and the driven member 1, thereby achieving locking and unlocking. In specific practical applications, the intermediate gear 5 and the driving gear 7 can be bevel gears.

[0040] In order to detect the rotation of the output shaft of the motor, the control system also includes a second detection component electrically or signal-connected to the main control board. The second detection component is connected or adapted to the transmission component and sends the angular displacement of the output shaft of the motor detected by the transmission component to the main control board.

[0041] Specifically, the second detection component includes a third sensing element and a fourth sensing element. The third sensing element is fixedly mounted on the intermediate gear 5 or the driving gear 7, and the fourth sensing element is fixedly mounted on the lock body. When the output shaft of the motor rotates, the third sensing element and the fourth sensing element can rotate relative to each other, and the fourth sensing element is triggered to detect the angular displacement of the third sensing element.

[0042] In this embodiment, the third sensing element is the second magnetic member, and the fourth sensing element is the magnetic encoder. The installation position of the magnetic encoder should be set according to the position of the second magnetic member. For example, when the second magnetic member is installed on the intermediate gear 5, the magnetic encoder is generally fixedly installed on the base plate 4 of the lock body. When the second magnetic member is installed on the driving gear 7, the magnetic encoder is generally fixedly installed on the main control board of the lock body.

[0043] In other embodiments, the second detection component may also adopt other implementations such as a magnetic code disk, an infrared tube code disk, an angle sensor, etc., as long as the angular displacement of the output shaft of the motor detected by the transmission component can be sent to the main control board.

[0044] For example, the second detection component can be set as an infrared code disk, specifically, a black and white color stripe is set on the driving gear 7 or the intermediate gear 5, and the infrared tube is used for detection, the pulses are counted and the rotation angle is obtained; or, the second detection component can be set as a magnetic code disk, specifically, a magnetic ring is fixed on the driving gear 7 or the intermediate gear 5, and the Hall sensor is used for detection, the pulses are counted and the rotation angle is obtained; or, the second detection component can be set as a gyroscope, specifically, the gyroscope is fixedly connected to the driving gear 7 or the intermediate gear 5, and the gyroscope can read the rotation angle when it rotates.

[0045] This embodiment detects the rotation angle through the magnetic encoder and the second magnetic member, so that the second detection component has high detection accuracy, strong anti-interference ability, easy installation and low power consumption.

[0046] The working principle of the control system provided by the embodiment of the present invention is as follows:

[0047] a) Check the rotation of the lock body square shaft / door knob

[0048] Since the lock body square shaft and the door knob are coaxially driven with the follower 1, and the rotating member 2 is meshed with the follower 1, when the lock body square shaft or the door knob is rotated, the rotating member 2 will rotate, and the position of the lock body square shaft / door knob can be accurately detected by the angle sensor 3 connected to the rotating member 2.

[0049] b) Detect the rotation of the motor output shaft

[0050] The driving gear 7 is driven by the output shaft of the motor, and the intermediate gear 5 is meshed with the driving gear 7. When the output shaft of the motor rotates, the intermediate gear 5 and the driving gear 7 will rotate. A second magnetic component that cooperates with a magnetic encoder is provided on the intermediate gear 5 or the driving gear 7. The magnetic encoder detects the rotation angle of the second magnetic component, and then the rotation angle of the output shaft of the motor can be known.

[0051] c) Detect the movement of the lock body square shaft with low power consumption in standby mode

[0052] The angle sensor consumes more power when working normally, while the Hall sensor consumes less power. Since the driven part 1 or the rotating part 2 is provided with a first magnetic part that cooperates with the Hall sensor, the control circuit can cut off the power of the angle sensor 3 in the standby state, and use the Hall sensor to detect the movement of the square shaft of the lock body. Once the square shaft of the lock body moves, it can be sensed by the Hall sensor, and the control circuit will then power on the angle sensor 3 to wake it up.

[0053] like Figure 1 As shown, in a specific practical application, the outer diameter of the intermediate gear 5 is generally 2 to 3 times the outer diameter of the driven member 1. In order to save space as much as possible, the angle sensor 3 can be arranged between the rotating member 2 and the intermediate gear 5, and the driving gear 7 can be arranged on the other side of the driven member 1 relative to the rotating member 2.

[0054] like Figure 2 As shown, the virtual rotation stroke between the intermediate gear 5 and the driven member 1 can be 120° to 170°.

[0055] Of course, the present invention does not limit the setting position of the magnetic encoder and the Hall sensor. For example, they (magnetic encoder or Hall sensor) can be fixed on the mounting plate of the drive mechanism of the lock body. However, it is generally preferred to fix the magnetic encoder and the Hall sensor to the main control board, which can make the overall structure more regular. At the same time, after the magnetic encoder and the Hall sensor are fixed to the main control board, it can be ensured that the distance between the Hall sensor and the first magnetic part and the distance between the magnetic encoder and the second magnetic part are within the detection range of a good signal, which is beneficial to ensure the detection accuracy.

[0056] The present invention does not limit the structures of the first magnetic member and the second magnetic member, and they may be block-shaped, strip-shaped, ring-shaped, etc. In specific practical applications, the second magnetic member may be embedded in the small end face of the driving gear 7. The first magnetic member may be a circular ring disposed on the driven member 1, and the axis of the circular ring coincides with the axis of the driven member 1.

[0057] The present invention also provides a smart door lock, which includes the control system disclosed in the above embodiment. Since the control system disclosed in the above embodiment has the above technical effects, the smart door lock with the control system also has the above technical effects, which will not be described in detail herein.

[0058] The above description of the disclosed embodiments enables one skilled in the art to implement or use the present invention. Various modifications to the embodiments will be apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but rather to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A control system for an intelligent door lock, characterized in that: It includes a main control board, a first detection component and a sensing component, wherein the first detection component and the sensing component are electrically connected or signal-connected to the main control board respectively; The sensing component is adapted to the lock body square shaft, and is used to detect the starting action of the lock body square shaft from being stationary to rotating and send a wake-up signal to the main control board; The main control board is in a dormant state until receiving the wake-up signal sent by the sensing component, and after being awakened, the main control board is also used to wake up the first detection component; The first detection component is adapted to the lock body square shaft, and sends the detected angular displacement of the lock body square shaft to the main control board; The control system further comprises a gear box (6) and a transmission assembly, wherein the gear box (6) is integrated with a motor and a gear assembly; the transmission assembly comprises a driving gear (7) and a driven member (1); the driving gear (7) is in transmission connection with the motor, and the driven member (1) is coaxially transmitted with the square shaft of the lock body; The first detection component comprises a rotating member (2) drivingly connected to the driven member (1), and an angle sensor (3) coaxially arranged with the rotating member (2), wherein the angle sensor (3) is connected to the rotating member (2) and is used to collect angle signals and output them to the main control board; The sensing component comprises a first sensing element and a second sensing element, wherein the first sensing element is fixedly mounted on the driven member (1) or the rotating member (2), and the second sensing element is fixedly mounted on the lock body. When the square shaft of the lock body rotates, the first sensing element and the second sensing element can rotate relative to each other, and the second sensing element can be triggered to send the wake-up signal to the main control board.

2. The control system according to claim 1, characterized in that: The first sensing element is a first magnetic member, and the second sensing element is a Hall sensor.

3. The control system according to claim 1 or 2, characterized in that: The driven member (1) and the rotating member (2) are gears meshing with each other, and the rotating member (2) is located radially to the side of the driven member (1).

4. The control system according to claim 3, characterized in that: The control system also includes a second detection component electrically or signal-connected to the main control board, the second detection component is connected or adapted to the transmission component, and sends the angular displacement of the output shaft of the motor detected by the transmission component to the main control board.

5. The control system according to claim 4, characterized in that: The transmission assembly further comprises an intermediate gear (5) coaxially arranged with the driven member (1), the intermediate gear (5) meshing with the driving gear (7), and the intermediate gear (5) and the driven member (1) are provided with mutually matching virtual position rotation connection structures; The second detection component comprises a third sensing element and a fourth sensing element. The third sensing element is fixedly mounted on the intermediate gear (5) or the driving gear (7), and the fourth sensing element is fixedly mounted on the lock body. When the output shaft of the motor rotates, the third sensing element and the fourth sensing element can rotate relative to each other, and the fourth sensing element is triggered to detect the angular displacement of the third sensing element.

6. The control system according to claim 5, characterized in that: The intermediate gear (5) and the driving gear (7) are both bevel gears.

7. The control system according to claim 6, characterized in that: The third sensing element is a second magnetic member, and the fourth sensing element is a magnetic encoder.

8. The control system according to claim 7, characterized in that: The outer diameter of the intermediate gear (5) is 2 to 3 times the outer diameter of the driven member (1), and the angle sensor (3) is located between the rotating member (2) and the intermediate gear (5).

9. A smart door lock, characterized in that: Comprising a control system as claimed in any one of claims 1 to 8.

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