Door guardrail and unlocking control method thereof

Abstract

The invention discloses a door guardrail and an unlocking control method thereof. The door guardrail comprises a fixed frame, a movable door body and a door lock structure. A door lock comprises a first lock shell, a second lock shell, a sensing assembly, an electric control element, a driving assembly, a first lock assembly and a second lock assembly. The sensing assembly is used for collecting biological information, at least including height and body temperature, of a target object, the electric control element judges whether the target object is an adult user or not based on the biological information, and only when the target object is recognized as the adult user, a driving control signal is output to unlock the door lock, so that mistaken unlocking by children is prevented. The sensing assembly can further comprise a pressure sensor used for judging whether the adult user has the passing intention or not. And the smoke detector or the carbon monoxide sensor can be used for directly unlocking the door guardrail in an emergency. The invention further provides a corresponding unlocking control method, and safe and reliable intelligent door guardrail control with the emergency unlocking function is achieved through comprehensive judgment of biological information and environment information.

Description

Technical Field

[0001] This invention relates to the field of door control and security technology, and in particular to a door guardrail and its unlocking control method. Background Technology

[0002] With the improvement of urban living environments and the increasing prevalence of high-rise residential buildings, the use of balcony railings, stair railings, and indoor isolation railings is becoming more and more widespread. To prevent children or pets from accidentally entering dangerous areas, areas where they might fall, or other areas that are not suitable for entry, people usually install movable gates at the railing locations, which are then locked with locks to improve safety.

[0003] In existing technologies, purely mechanical door lock structures, such as simple bolt locks and knob locks, are low-cost and easy to install, but rely on manual operation by the user and lack intelligent recognition capabilities. Current intelligent electronic door locks generally use infrared sensors to detect movement outside the door, combined with simple button or touch operations for unlocking. However, these solutions typically only detect the presence of a biological entity and cannot distinguish between adults, children, or pets, nor can they determine whether the person truly intends to pass through the door. Therefore, when children play near the door or bang on the door, or pets bump into the doorway, the unlocking action may still be triggered, which is unsuitable for scenarios requiring high security levels. Some high-end door locks incorporate facial recognition or fingerprint recognition solutions, but facial recognition only unlocks for registered users; if a child's face is registered, it may be incorrectly identified as an authorized user. Furthermore, adjusting body angles in narrow spaces such as stairwells to allow facial recognition to collect information is neither convenient nor secure. Fingerprint unlocking is inconvenient for adults carrying children or carrying items through the door.

[0004] Therefore, there is an urgent need for a door guardrail solution that is relatively simple in structure, cost-controllable, can comprehensively utilize multiple types of sensors to achieve dual determination of adult recognition and intent judgment, and closely cooperates with the mechanical door lock structure to improve the safety and reliability of door guardrails. Summary of the Invention

[0005] The purpose of this invention is to overcome the shortcomings of the prior art and provide a door guardrail and its unlocking control method. By rationally arranging sensors and electronic control components, the biometric information around the door lock is analyzed to identify adult and non-adult users. Furthermore, it can determine whether the adult user intends to pass through the door guardrail. The unlocking is only activated when preset conditions are met, effectively preventing children or pets from accidentally unlocking the door and significantly improving the safety protection capability and reliability of the door guardrail.

[0006] To achieve the above objectives, the present invention provides a gate railing, comprising: Fixed frame; The movable door body, one side of which is rotatably connected to the fixed frame via a pivot structure; and Door lock; The door lock includes: The first lock housing is disposed on the fixed frame or the movable door body; The second lock housing is disposed on the movable door or the fixed frame; The sensing component is configured to collect biometric or control information that characterizes the identity or passage intention of the target object; An electronic control element is disposed in the first lock housing and electrically connected to the sensing component. The electronic control element is used to: identify whether the target object is an adult user based on the biometric information collected by the sensing component; output a drive control signal when the target object is identified as an adult user; otherwise, do not output a drive control signal. A drive assembly is disposed in the first lock housing and electrically connected to the electronic control element. The drive assembly is triggered when it receives the drive control signal. A first locking assembly is disposed in the first locking housing and is drive-connected to the driving assembly; and The second lock assembly is disposed within the second lock housing and cooperates with the first lock assembly to achieve locking and unlocking of the door lock.

[0007] Furthermore, the first lock assembly includes an unlocking bar, a first pulling member, a latch, and a first elastic component. The unlocking bar is fixedly connected to the first pulling member, which has a receiving groove. The latch is slidably disposed within the receiving groove via the first elastic component. The first end of the latch has a first inclined surface, and the wall surrounding the receiving groove has a second inclined surface that mates with the first inclined surface. The second lock assembly has a lock groove, and the wall surrounding the lock groove has a third inclined surface that matches the second end of the latch, thereby forming a reliable locking and unlocking structure.

[0008] Furthermore, the second locking assembly may include a base, a first pushing member, a second pushing member, a second pulling member, a stop, and a second elastic component; the first pushing member is slidably disposed within the base; the second elastic component includes a first reset member, a second reset member, and a third reset member; the second pushing member includes a first receiving cavity, a second receiving cavity, and a guide groove; the stop is disposed within the first receiving cavity, with one end fixedly connected to the first reset member and the other end detachably connected to the first pushing member; the second reset member is disposed within the second receiving cavity; one end of the second pulling member is provided with a sliding hole, which can slide and engage with the guide groove via a connecting shaft; the third reset member is fixedly disposed on the second pulling member, enabling the second locking assembly to automatically reset after being subjected to force, ensuring stability during long-term use.

[0009] Furthermore, the first locking assembly may also include a traction unit, a third elastic component, and a pulling component. The first end of the traction unit is fixedly connected to the first pulling member via the third elastic component, and the second end is connected to the pulling component. The pulling component includes a pulling part and a pulley system. The second end of the traction unit passes through the pulley system and connects to the pulling part, thereby changing the direction and magnitude of the force to achieve a more stable and gentle unlocking action and a buffering effect.

[0010] Furthermore, the sensing components are respectively located at different positions outside the first lock housing according to different sensing requirements.

[0011] Furthermore, the second lock assembly also includes a limiting block, which is fixedly disposed on the first pusher.

[0012] Furthermore, the base also includes a limiting groove, within which the second pushing member can slide.

[0013] The sensing component includes a first type of sensor and a second type of sensor, wherein The first type of sensor is used to collect the height information of the target object, such as by infrared ranging, ultrasonic ranging or other height detection methods, to obtain the distance data between the target position and the ground. The second type of sensor is used to collect temperature information of the target object, such as by using pyroelectric infrared sensors, temperature sensors, etc. to determine whether the target is a living organism with certain body temperature characteristics.

[0014] The sensing component also includes a third type of sensor, which is used to detect the pressure applied by the user to the door lock or door barrier. This third type of sensor, for example, uses piezoelectric, strain gauge, or pressure button devices to collect pressure signals generated when the user presses, pushes, or grips the door lock. The third type of sensor provides the electronic control element with pressure information representing the pressure applied by the user to the door lock, allowing the electronic control element to determine whether the user intends to pass through the door barrier. When the pressure value reaches a threshold range, it is determined that the user can unlock the door, and the electronic control element outputs a drive control signal; otherwise, no drive control signal is output.

[0015] Furthermore, the sensing component also includes a smoke detector or a carbon monoxide sensor.

[0016] The electronic control unit fuses and analyzes the data acquired by the various sensors mentioned above: By combining height and temperature information, the system determines whether the target object is within the height range of an adult and possesses human body temperature characteristics, thereby identifying adult users. Furthermore, pressure information is used to determine whether the current adult user is actively applying force and has the intention to pass through the door barrier. For example, if a target within the height range of an adult is detected lingering near the door lock and applies pressure exceeding a set threshold within a predetermined time window, it is determined that the adult has a clear intention to pass through. Only then is a drive control signal output to activate the components and unlock the door.

[0017] Furthermore, the first type of sensor is an infrared ranging sensor or a camera unit; the camera unit is configured to acquire images, identify the upper and lower boundary positions of the human target in the image, and obtain the pixel height of the human target in the image; based on the installation height, pitch angle and field of view of the camera, the correspondence between the pixel height of the person and the actual height is obtained through pre-calibration, and the pixel height of the human target is converted into the actual height, thereby obtaining the biological height information used to represent the height value of the target object.

[0018] Furthermore, the sensing component includes a voice sensing module; The voice sensing module includes: Microphone, used to collect ambient sound; The wake word recognition unit is configured to recognize a preset wake word in a low-power listening state; The voiceprint recognition unit is configured to extract and compare voiceprint features from the user's speech. A voice command recognition unit is configured to recognize preset control commands in voice. The electronic control component is configured to: activate the voiceprint recognition unit and the voice command recognition unit after the wake-up word recognition unit recognizes the wake-up word; and determine the user as an authorized user when the voiceprint comparison is successful and the preset unlock command is recognized.

[0019] The present invention also provides a method for unlocking and controlling a gate railing, characterized in that it includes: S1: Collect biological height and temperature information around the door lock through the sensing components; S2: The electronic control element identifies whether the target object around the door lock is an adult user based on the biological height information and the biological temperature information; if it is an adult user, the electronic control element outputs a drive control signal; otherwise, it does not output a drive control signal. S3: When the drive component receives the drive control signal, it drives the first lock component to operate, so that the first lock component and the second lock component switch from the locked state to the unlocked state, thereby allowing the movable door to open.

[0020] Furthermore, step S2 also includes: after determining that the target object is an adult user based on the biological height information and biological temperature information, the pressure value applied to the preset stepping area of ​​the door lock or door guardrail is further collected by the sensing component. When the pressure value reaches the preset threshold, the electronic control element outputs a drive control signal; otherwise, no drive control signal is output.

[0021] Furthermore, the unlocking control method also includes: when the smoke detector or carbon monoxide sensor detects that the concentration of smoke particles or carbon monoxide gas continuously exceeds a preset safety threshold, the electronic control element will ignore the detection of height, temperature, and pressure, and directly unlock the door lock. Beneficial effects

[0022] The first lock assembly of this invention, through multi-dimensional information fusion from the sensing components, enables the electronic control element to accurately distinguish between adult users and children / pets, and determine the user's true intention to pass, fundamentally preventing accidental opening due to accidental touch or leaning. Simultaneously, the user does not need to perform any additional manual operations, such as pressing buttons or rotating handles, greatly improving accessibility, especially suitable for situations where both hands are occupied. The second lock assembly, through a dual-stage push, elastic reset, and limiting structure, avoids the limitations of traditional single unlocking structures. The addition of a pull component provides redundant channels for manual emergency unlocking or remote electronic unlocking, enhancing the emergency reliability of the door lock.

[0023] The first and second lock components of this invention can be unlocked independently or collaboratively, exhibiting high structural integration and not relying on complex image processing systems. In emergency situations, even without completing the standard adult user identification process, the door lock prioritizes rapid evacuation and ensures unobstructed rescue routes, achieving a balance between safety and convenience. It is suitable for widespread use on door railings or isolation doors in various settings such as homes, kindergartens, and veterinary hospitals. Attached Figure Description

[0024] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the accompanying drawings used in the embodiments will be briefly described below. Obviously, the following drawings only show some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0025] Figure 1 This is a three-dimensional structural diagram of the gate railing of the present invention.

[0026] Figure 2 This is an exploded view of the door lock structure of the door railing of the present invention.

[0027] Figure 3 This is a schematic diagram of the internal structure of the first and second locking components after assembly according to the present invention.

[0028] Figure 4 for Figure 3 A schematic diagram of the structure after removing the base and the first lock housing.

[0029] Figure 5 for Figure 4 Another perspective structural diagram.

[0030] Figure 6 This is a schematic diagram of the structure of the footboard of the gate railing of the present invention.

[0031] Explanation of reference numerals in the attached drawings: 1. First lock housing; 2. Second lock housing; 3. Door railing status detection device; 4. Electrical control component; 5. Drive assembly; 300. Flexible pressure sensor; 301. Audio plug; 302. First fixed base; 303. Second fixed base; 304. Cover; 50. Motor assembly; 501. Motor gear; 51. Output gear; 52. Linkage gear; 53. Gearbox; 54. Gear shaft; 61. Unlocking bar; 62. First pulling member; 621. Receiving groove; 622. Second inclined surface; 63. Lock tongue; 631. First inclined surface; 64. First elastic component; 65. Pipe plug; 71. Base; 72. 73. First pushing component; 74. Second pushing component; 75. Second pulling component; 76. Locking groove; 77. Reset groove; 78. Sliding hole; 79. Third inclined surface; 70. Stop block; 70. Limiting block; 71. Connecting shaft; 72. Guide groove; 103. First reset component; 104. Second reset component; 105. Third reset component; 8. Traction part; 90. Pulling assembly; 91. Pulling part; 92. Pulley block; 916. Operating housing; 927. Pulley; 928. Bearing; 929. First pulley cover; 920. Second pulley cover; 921. Pulley shaft; 120. Pedal; 13. Fixed frame; 14. Movable door body; 15. Rotating shaft structure; 16. Battery. Detailed Implementation

[0032] The technical solution of the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be understood that the following embodiments are only used to illustrate the present invention and are not intended to limit the scope of protection of the present invention. Where there is no conflict, the features in this embodiment can be combined with each other. Example 1

[0033] See Figure 1 This embodiment provides a door railing, which includes a fixed frame 11, a movable door body 12, and a door lock. The fixed frame 11 can be installed at the entrance of a staircase, balcony, or corridor exit, etc. One side of the movable door body 12 is rotatably connected to the fixed frame 11 via a pivot structure 13.

[0034] refer to Figures 1-5The door lock includes a first lock housing 1, a second lock housing 2, a sensing component, an electronic control component 4, a drive component 5, a first lock assembly, and a second lock assembly. The first lock housing is disposed on the fixed frame 11 or the movable door body 12, and correspondingly, the second lock housing is disposed on the movable door body 12 or the fixed frame 11.

[0035] The sensing component is mounted on the first lock housing 1. It can be positioned on the front, top, or side of the first lock housing 1 as needed to collect biometric information around the lock. Alternatively, the sensing component can be mounted on a wall, fixed frame 11, or movable door 12 at a corresponding height outside the first lock housing 1, as long as it can detect biometric information. The electronic control element 4 is located inside the first lock housing 1 and is electrically connected to the sensing component, drive component 5, and battery 14. The electronic control element 4 receives and processes the height, temperature, and pressure signals output by the sensing component and determines the target object based on these three signals. The drive component 5 can be a motor, linear actuator, electromagnet, or other driving device. When the drive component 5 receives the drive control signal output by the electronic control element 4, it drives the first lock assembly connected to it to operate.

[0036] See Figure 2 The first lock assembly includes an unlocking bar 61, a first pulling member 62, a locking tongue 63, and a first elastic component 64. The unlocking bar 61 is in fixed contact with the first pulling member 62. The first pulling member 62 has a receiving groove 621, and the locking tongue 63 is slidably disposed within the receiving groove 621 via the first elastic component 64. The first end of the locking tongue 63 has a first inclined surface 631. The wall surrounding the receiving groove 621 has a second inclined surface 622 that mates with the first inclined surface 631. Figure 4 As shown, when the unlocking bar 61 moves the first pulling member 62, the locking tongue 63 slides along the receiving groove 621 under the action of the first elastic component. The first inclined surface 631 is opposite to the second inclined surface 622. Through the cooperation of the inclined surfaces, the second end of the locking tongue 63 extends out of the second locking component.

[0037] One end of the unlocking bar 61 is fixedly in contact with the first pulling member 62, and the other end is connected to the output component of the drive assembly 5. The drive assembly 5 is a combination structure of a motor and gears, racks, or cams, or a combination structure of an electromagnet and a push rod, with a combination structure of motors and gears being preferred. For example, the drive assembly 5 includes a gear set and a motor set 50, and the motor set 50 is also equipped with a motor gear 501. The gear set includes a linkage gear 51, an output gear 52, a gearbox 53, and a gear shaft 54. The linkage gear 51, the output gear 52, and the gear shaft 54 ​​are disposed in the gearbox 53. The motor set 50 drives the linkage gear 51 and the output gear 52, and the output gear 52 engages the unlocking bar 61, causing the unlocking bar to undergo linear displacement, thereby pushing the pulling block to move longitudinally, and finally causing the locking tongue to retract from the second locking assembly to the first locking assembly, thus achieving unlocking.

[0038] The first elastic component 64 can be in the form of a spring or an elastic sheet to provide a restoring force to the latch 63, so that the latch 63 automatically returns to the predetermined position after being removed from the external force, ensuring reliable locking of the door lock.

[0039] like Figures 2-4 As shown, the second lock assembly includes a base 71, a first pusher 72, a second pusher 73, a second puller 74, a stop 75, and a second elastic component. In one embodiment, the movable door 11 includes a crossbeam 121, which serves as the base 71.

[0040] A locking groove 741 is formed on the second pull member 74, and the second end of the locking tongue 63 can extend into or retract from the locking groove 741.

[0041] The second pushing member 73 has a first receiving cavity, a second receiving cavity, and a guide groove 79. The second pulling member 74 also includes a reset groove 742. The second elastic component includes a first reset member 101, a second reset member 102, and a third reset member 103, which are respectively disposed in the first receiving cavity, the second receiving cavity, and the reset groove 742. A stop block 75 passes through the first receiving cavity, one end of which is fixedly connected to the first reset member 101, and the other end abuts against the first pushing member 72. The second reset member 102 is disposed in the second receiving cavity to provide a horizontal elastic reset force for the second pushing member 73.

[0042] The second pulling member 74 has a sliding hole 743 at one end. The second locking assembly also includes a connecting shaft 78. The connecting shaft 78 passes through the sliding hole 74 and is inserted into the guide groove 79. The guide groove 79 restricts the displacement of the connecting shaft 78, causing the second pulling member 74 to move along the direction of the guide groove 79. The third reset member 103 is fixed on the reset groove 742 of the second pulling member 74 and is used to reset the second pulling member 74 after it moves along the direction of the guide groove 79. The third reset member 103 ensures that the various components inside the second locking assembly can smoothly and reliably engage and disengage between the bolt 63 and the lock groove 741, and automatically resets after the external force is removed, facilitating the next locking.

[0043] The wall of the second pull member 74 has a third inclined surface 744, which engages with the second end of the latch 63. When the movable door 12 closes and applies force towards the fixed frame 11, the latch 63, under the action of the first inclined surface 631 and the second inclined surface 622, enters the lock groove 741 of the second lock assembly, thereby achieving effective locking.

[0044] In this embodiment, the unlocking process of the second lock assembly is as follows: pull up the first pusher 72, push the stop 75 into the second pusher 73, release the limit on the second pusher 73, and then pull the second pusher 73, so that the second puller 74 is displaced along the guide groove 79, and the third inclined surface 744 separates from the second end of the lock tongue 63, thereby unlocking.

[0045] In one embodiment, the second locking assembly further includes a limiting component, which includes a limiting block 76 and a limiting hole 711. The limiting block 76 is fixedly disposed on the first pushing member 72 and is used to limit the stroke of the first pushing member 72 during its sliding process. The limiting hole 711 is disposed on the base 71, and the second pushing member 73 is disposed within the limiting hole 711. The movement of the second pushing member 73 is constrained by the limiting hole 711, making its movement more stable and avoiding shaking and misalignment, thereby ensuring the cooperation between the guide groove 79 and the second pulling member 74.

[0046] By setting limit components, problems such as component loosening and positional displacement caused by long-term use or external impact can be avoided, thereby improving the reliability and service life of the entire door lock mechanism.

[0047] The sensing components in this embodiment include a first type of sensor, a second type of sensor, and a third type of sensor. The electronic control element 4 can be composed of a microcontroller, a microprocessor, or other control chip, with preset recognition algorithms and threshold parameters.

[0048] The first type of sensor is used to collect the height information of the target object, and can be: Infrared rangefinders calculate distance by emitting infrared light and receiving reflected light. Or other sensors capable of acquiring the height of the target object or its distance from the ground.

[0049] The electronic control component 4 calculates the actual height range of the target object based on the output height signal of the first type of sensor, combined with the installation height and environmental parameters, and compares it with the preset adult height range.

[0050] The second type of sensor is used to collect temperature information of the target object. It can be a pyroelectric infrared sensor or other sensors capable of acquiring the target object's temperature. When a target object with body temperature characteristics is present in front of the door lock, the second type of sensor outputs a temperature signal. The electronic control element 4 determines whether the target object is a living organism with a normal body temperature range based on its output, eliminating interference from objects or the environment.

[0051] The third type of sensor is implemented through piezoelectric elements, pressure switches, strain gauges, etc. When a user performs a grasping, pressing, or pushing / pulling operation on the third type of sensor, the sensor outputs a corresponding pressure signal. The electronic control element 4 determines whether the user is actively operating the door lock based on the magnitude and duration of the pressure, and combines this with height and temperature information to conclude whether the adult user intends to pass through the door barrier.

[0052] In one embodiment, the sensing component further includes a smoke detector or a carbon monoxide sensor.

[0053] In one embodiment, the sensing component further includes a door / fence status detection device 3. The door / fence status detection device 3 is connected to the control circuit 4 and is used to detect the opening and closing of the door / fence, outputting a detection signal characterizing the opening or closing of the door / fence to the control circuit 4. The door / fence status detection device 3 can be, but is not limited to, a Hall sensor, a photoelectric sensor, etc.

[0054] In one type of electronic control logic, electronic control element 4 can operate according to the following steps: S1: Monitor the output of the first type of sensor. When a target object is detected outside the door and its height is within the preset adult height range, activate the second type of sensor; otherwise, do not activate the second type of sensor. S2: Monitor the output of the second type of sensor. If the temperature of the target object is within the preset temperature range, activate the third type of sensor; otherwise, do not activate the third type of sensor. S3: Within a preset time window, if the pressure signal of the third type of sensor exceeds the set threshold and continues for a certain period of time, the current target object is determined to be an unlockable user with the intention to pass through the gate; otherwise, it is determined to be an unlockable user. S4: When the user is determined to be unlockable, the electronic control element 4 outputs a drive control signal to the drive assembly 5; S5: When the drive component 5 receives the drive control signal, it drives the first lock component to operate, so that the first lock component and the second lock component switch from the locked state to the unlocked state, thereby allowing the movable door 12 to open.

[0055] In one embodiment, the electronic control logic further includes a priority unlocking process: S6: When the smoke detector or carbon monoxide sensor detects that the concentration of smoke particles or carbon monoxide gas continuously exceeds the preset safety threshold, the electronic control component no longer judges or constrains the height signal, temperature signal and pressure signal, but directly outputs the unlocking control signal to the drive component. The drive component then acts to release the locking relationship between the first lock component and the second lock component, thereby realizing the forced unlocking of the door lock.

[0056] Through the logical judgment of the above multiple conditions, this invention can ensure that the door lock can be automatically opened when an adult user needs to pass through the door gate, while preventing children or pets from accidentally unlocking it, thus achieving a balance between safety and convenience. In the event of a safety emergency, even if the conventional adult user identification process is not completed, the door lock can still prioritize the rapid evacuation of personnel and the unobstructed passage of rescue routes, achieving a balance between safety and convenience.

[0057] In different installation environments and usage scenarios, various sensors of the sensing component can be set at different locations outside the first lock housing 1 as needed. For example: The first type of sensor is installed at a position close to an adult's chest height in order to measure an adult's height more accurately; The second type of sensor is installed at a height close to the area where a human body appears, so as to easily capture the temperature of a living organism near the door lock operation; The third type of sensor is installed in the foot pedal area, ensuring that users with genuine intent to pass through will inevitably come into contact with the sensor.

[0058] This invention is not limited to the above-described installation method. Those skilled in the art can adjust the number and position of the sensors according to actual needs, such as adding multiple height sensors to adapt to different terrains, or adding multiple pressure sensors to detect forces applied in different directions. Example 2

[0059] like Figure 1 and Figure 2 As shown, based on Embodiment 1, the first lock assembly further includes a traction part 8, a third elastic component 81, and a tension component 9.

[0060] The first lock housing 1 is also provided with a tube plug 65. The first end of the traction part 8 is fixedly connected to the first pulling member 62 through the third elastic component 81 and fixed inside the first lock housing 1 by the tube plug 65. The third elastic component 81 can be in the form of a spring, elastic rope or other elastic connecting member. The second end of the traction part 8 is connected to the pulling component 9. Specifically, the pulling component 9 includes a pulling part 91 and a pulley assembly 92. The traction part 8 passes through the pulley assembly 92 and is fixedly connected to the pulling part 91. The pulling part 91 includes an operating housing 911. The operating housing 911 is a shaped part that is easy for the user to grip and apply pulling force. The operating housing 911 is shaped to facilitate protection when applying pulling force, such as a hand grip shape. The pulley assembly 92 includes a pulley 921, a bearing 922, a first pulley cover 923, a second pulley cover 924, and a pulley shaft 925. The pulley 921 is fixed inside the first pulley cover 923 and the second pulley cover 924 by the bearing 922 and the pulley shaft 925. The traction unit 8 is connected to the operating housing 911 after passing around the pulley 921.

[0061] refer to Figure 4 or Figure 5 When the sensing component or electronic control component loses power or malfunctions, the user can apply a pulling force to the pulling part 91, causing the traction part 8 to move. After the traction part 8 changes direction via the pulley group 92, the force is transmitted to the first pulling member 62 through the third elastic group 81, thereby driving the bolt 63 to complete the extension and retraction action. This process can change the movement trajectory of the first pulling member 62 without going through the drive component 5, making the entire unlocking action smoother. At the same time, the third elastic group 81 can also buffer sudden impacts or reverse forces, avoiding damage to other structures within the first lock component 81. Example 3

[0062] The difference between this embodiment and Embodiment 1 is that the first type of sensor uses a camera unit to improve the accuracy of adult identification.

[0063] Specifically, the electronic control component 4 includes a main controller, a memory, a power supply module, an indicator module, and a communication interface module. The camera unit is fixedly mounted on the first lock housing 1, or it can be installed on a wall at a corresponding height outside the first lock housing 1, so that its field of view covers a predetermined area outside the door railing. The camera unit includes an image acquisition device and an image processing chip. The image acquisition device is used to acquire images of the area surrounding the door lock. The image processing chip is used to analyze and process the image signals output by the image acquisition device. The image acquisition device and the image processing chip are electrically connected. The image processing chip is electrically connected to the main controller via wires, and is used to output the processed result data to the main controller.

[0064] The main controller is electrically connected to the memory, camera unit, drive assembly, power module, indicator lights, and buzzer via wires. The memory is used to store user-preset unlock height thresholds, control programs, and other parameters.

[0065] When the door lock is in operation, the image acquisition device in the camera unit acquires image data of the area surrounding the door lock and transmits the image data to the image processing chip. The image processing chip has a built-in function that, based on the camera's installation height, pitch angle, and field of view, calibrates the correspondence between a person's pixel height and their actual height. After the camera unit transmits the acquired images to the image processing chip in real time, the image processing chip sequentially performs the following processing steps: S10: Perform target detection on the input image to determine whether there is a human target in the image. If there is a human target, obtain the image region corresponding to the human target. S20: Identify the upper and lower boundary positions of the human target in the image to obtain the pixel height of the human target in the image; S30: Based on the pre-calibrated correspondence, the pixel height of the human target is converted into the actual height, thereby obtaining the biological height information used to represent the height value of the target object.

[0066] After completing the above-mentioned human body detection, classification, and height calculation, the image processing chip sends the target object's type information and biological height information to the main controller.

[0067] The main controller receives the target object's biometric height information from the camera unit and reads the preset lower and upper limits of adult height from the memory. When the biometric height information is between the lower and upper limits of adult height, the main controller determines the target object as an unlockable user; when the biometric height information is less than the lower limit of adult height, the target object is determined as an unlockable user.

[0068] It should be noted that in this embodiment, the camera unit functionally replaces the first type of sensor used to collect altitude information in the aforementioned embodiments. In other embodiments, the camera unit may also be used in combination with the first type of sensor, the second type of sensor, and the third type of sensor to form a multi-source information fusion sensing component. The present invention is not limited to any particular specific implementation. Example 4

[0069] The difference between this embodiment and Embodiment 1 is that the sensing component further includes a voice sensing module, which is electrically connected to the electronic control component 4. This embodiment, by setting a voice wake-up mechanism, enables the door lock system to achieve voice-controlled unlocking while ensuring extremely low standby power consumption.

[0070] The voice sensing module includes a microphone, a wake-up word recognition unit, a voiceprint recognition unit, and a voice command recognition unit. The microphone is used to collect ambient sound signals; the wake-up word recognition unit operates in low-power mode, continuously monitoring ambient sounds and recognizing the wake-up word "Xiao Hu Xiao Hu" when the door lock is in sleep mode; the voiceprint recognition unit extracts voiceprint features from the user's voice and compares them with the voiceprint template of an authorized user; the voice command recognition unit performs keyword or semantic recognition on the user's voice to determine whether it contains preset control commands such as "unlock".

[0071] After the device is powered on, the door lock system enters a low-power sleep monitoring state by default. In this state, only the microphone and wake-up word recognition unit in the voice sensing module are powered, while the electronic control component 4 and the drive component 5 are turned off, thereby significantly reducing overall power consumption. The wake-up word recognition unit matches the collected audio signal with the preset "Xiao Hu Xiao Hu" wake-up word.

[0072] When the microphone detects an audio signal, the wake-up word recognition unit first determines whether the audio signal matches a preset wake-up word: If it is determined that the audio data is not a wake word, the door lock system will discard the audio data and continue to maintain a low-power sleep listening state. If the wake word "Xiao Hu Xiao Hu" is successfully identified, the wake word recognition unit outputs a wake-up signal to the electronic control element 4.

[0073] Upon receiving a wake-up signal, the electronic control element 4 switches the door lock system from a low-power sleep monitoring state to an operating state, supplying power to the voiceprint recognition unit and voice command recognition unit and activating the corresponding processing modules. To notify the user that the system has been awakened, the electronic control element 4 can control the buzzer to emit a prompt tone and / or control the indicator light to flash. Subsequently, the electronic control element 4 sets a predetermined listening window period, such as 5 seconds or other configurable time, during which the voice sensing module collects and processes subsequent voice commands issued by the user.

[0074] During the listening window, the voice command recognition unit performs keyword recognition on the user's voice to determine whether it contains preset control commands such as "unlock." Simultaneously, the voiceprint recognition unit extracts voiceprint features from the user's voice and compares them with the authorized user voiceprint template stored in the electronic control element 4 or external memory to obtain the voiceprint comparison result. The electronic control element 4 can then execute the following decision logic based on these two types of recognition results: When the voiceprint comparison result shows that the current speaker is an authorized user and the voice command recognition result shows that the preset unlock command has been recognized, the electronic control element 4 determines that the voice authentication is successful and outputs an unlock control signal to the drive component 5. The drive component 5 then drives the first lock component and the second lock component to switch from the locked state to the unlocked state, thereby allowing the movable door of the door guardrail to open. When the voiceprint comparison fails or the preset unlock command is not recognized, the electronic control element 4 determines that the voice authentication has failed, keeps the door lock in the locked state, or outputs / maintains the lock control command.

[0075] After the listening window ends or a complete voice authentication process is completed, the electronic control element 4 controls the voiceprint recognition unit and voice command recognition unit to shut down, and puts the door lock system back into a low-power sleep listening state, keeping only the wake-up word recognition unit and microphone active, waiting for the next wake-up operation. Through the above state machine management, the door lock system can effectively control overall power consumption while ensuring a good voice interaction experience.

[0076] It should be noted that the voice recognition scheme based on the voice sensing module can be used alone to control the unlocking of the door lock, or it can be used in combination with the aforementioned sensing schemes based on height, temperature, and pressure information, and the recognition scheme based on the camera unit. For example, in some embodiments, unlocking can be allowed only when the voice authentication is successful and the target object also meets adult recognition conditions or proximity conditions, thereby further improving the security of the door railing. This invention does not limit the specific combination of sensing and control methods used; in practical applications, the configuration and selection can be made according to power consumption, cost, and security level requirements. Example 5

[0077] The difference between this embodiment and Embodiment 1 is that the third type of sensor of the sensing component is located at the bottom of the door railing. When a user outside the door meets the preset human height and temperature conditions, an adult user intending to pass applies pressure to the third type of sensor, automatically unlocking the door railing. The movable door 12 can then be opened around the pivot structure 13 to complete passage. After the movable door 12 is closed, under the action of the elastic component and the inclined surface, the first lock component and the second lock component automatically reset and re-engage, locking the door railing again.

[0078] like Figure 6 As shown, the door railing in this embodiment also includes a foot pedal 10. The third type of sensor is a flexible pressure sensor 300, which can be embedded in the door railing foot pedal 10 to convert the foot pressure applied by the user into an electrical signal. The output end of the flexible pressure sensor 300 is electrically connected to the electronic control element in the first lock assembly through a plug-in assembly. The plug-in assembly includes a plug 301, a first fixing seat 302 and a second fixing seat 303 fixedly installed on the foot pedal 10, and a cover 304.

[0079] This gate fence has a simple structure, is easy to install, and is highly safe. It is suitable for various scenarios such as homes, kindergartens, and pet hospitals. It can effectively prevent children or pets from accidentally entering dangerous areas, while providing adults with a convenient way to pass through.

[0080] The above are merely preferred embodiments of the present invention and do not limit the patent scope of the present invention. All equivalent structural transformations made using the contents of the present invention's specification and drawings under the inventive concept of the present invention, or direct or indirect applications in other related technical fields, are included within the patent protection scope of the present invention.

Claims

1. A door guardrail, characterized in that, include: Fixed frame; The movable door is rotatably connected to the fixed frame on one side via a pivot structure. as well as Door lock; The door lock includes: The first lock housing is disposed on the fixed frame or the movable door body; The second lock housing is disposed on the movable door or the fixed frame; Sensing components are configured to collect biometric information that identifies the target object; An electronic control element is disposed in the first lock housing and electrically connected to the sensing component. The electronic control element is used to: identify whether the target object is an adult user based on the biometric information collected by the sensing component; output a drive control signal when the target object is identified as an adult user; otherwise, do not output a drive control signal. A drive assembly is disposed in the first lock housing and electrically connected to the electronic control element. The drive assembly is triggered when it receives the drive control signal. A first locking assembly is disposed in the first locking housing and is drive-connected to the driving assembly; and The second lock assembly is disposed in the second lock housing and cooperates with the first lock assembly to realize the locking and unlocking of the door lock.

2. The gate railing according to claim 1, characterized in that, The first lock assembly includes an unlocking bar, a first pulling member, a locking tongue, and a first elastic component; The unlocking bar is fixed to the first pulling member, and the first pulling member has an internal receiving groove. The locking tongue is slidably disposed in the receiving groove through the first elastic component. The first end of the latch is formed with a first inclined surface, and the wall portion surrounding the receiving groove is formed with a second inclined surface that cooperates with the first inclined surface; The second lock assembly has a lock groove, and the wall surrounding the lock groove has a third inclined surface that matches the second end of the lock tongue; After receiving the drive signal from the electronic control element, the drive component drives the unlocking bar, causing the first pulling member to move, so that the first inclined surface, the second inclined surface, and the third inclined surface cooperate with each other to achieve unlocking.

3. The gate railing according to claim 2, characterized in that, The second lock assembly includes a base, a first pusher, a second pusher, a second puller, a stop, a connecting shaft, and a second elastic component; The first pushing member is slidably disposed on the base; The second elastic component includes a first reset member, a second reset member, and a third reset member; The second pusher includes a contact end, a first receiving cavity, a second receiving cavity, and a guide groove; The stop block passes through the first receiving cavity, one end of the stop block is fixedly connected to the first reset member, the other end of the stop block abuts against the first push member, and the second reset member is disposed in the second receiving cavity; One end of the second pulling member is provided with a sliding hole, and it moves along the direction of the guide groove via a connecting shaft; The third reset component is fixedly disposed on the second pull component; By pressing the first pusher, the second pusher is unlocked, and the sliding contact end causes the second puller to slide along the guide groove, making the third inclined surface move away from the locking tongue, thus unlocking the device.

4. The gate railing according to claim 3, characterized in that, The first locking assembly also includes a traction unit, a third elastic component, and a tension component; The first end of the traction part is fixedly connected to the first pulling member through a third elastic component, and the second end of the traction part is connected to the tension component; The tension assembly includes a tension section and a pulley system; The second end of the traction unit passes around the pulley block and is fixedly connected to the tension unit.

5. The gate railing according to any one of claims 1-4, characterized in that, The sensing components include a first type of sensor and a second type of sensor; The first type of sensor is used to collect the biological height of the target object. The second type of sensor is used to detect the biological temperature of the target object. The first type of sensor and the second type of sensor are used together to identify whether the target object is an adult user.

6. The door railing according to claim 5, characterized in that, The sensing components also include: smoke detectors or carbon monoxide sensors.

7. The gate railing according to claim 5, characterized in that, The sensing component also includes a third type of sensor for detecting applied pressure, which provides the electronic control element with pressure information indicating that the user is applying pressure to the door lock, so that the electronic control element can determine whether the user intends to pass through the door gate. When the pressure value reaches the threshold range, the user is determined to be unlockable, and the electronic control component outputs a drive control signal; otherwise, no drive control signal is output.

8. The door railing according to claim 7, characterized in that, The sensing components are respectively located at different positions outside the first lock housing according to different sensing requirements.

9. The door railing according to claim 3, characterized in that, The second lock assembly further includes a limiting block, which is fixedly disposed on the first pusher.

10. The gate railing according to claim 3, characterized in that, The base also includes a limiting groove, and the second pushing member can slide within the limiting groove.

11. The gate railing according to claim 5, characterized in that, The first type of sensor is an infrared ranging sensor or a camera unit; the camera unit is configured to acquire images, identify the upper and lower boundary positions of the human target in the image, and obtain the pixel height of the human target in the image; Based on the camera's installation height, pitch angle, and field of view, the correspondence between the pixel height of a person and their actual height is obtained through pre-calibration. The pixel height of the human target is then converted into the actual height, thus obtaining biological height information used to represent the target object's height.

12. The gate railing according to claim 1, characterized in that, The sensing components include a voice sensing module; The voice sensing module includes: Microphone, used to collect ambient sound; The wake word recognition unit is configured to recognize a preset wake word in a low-power listening state; The voiceprint recognition unit is configured to extract and compare voiceprint features from the user's speech. A voice command recognition unit is configured to recognize preset control commands in voice. The electronic control component is configured to: activate the voiceprint recognition unit and the voice command recognition unit after the wake-up word recognition unit recognizes the wake-up word; and determine the user as an authorized user when the voiceprint comparison is successful and the preset unlock command is recognized.

13. A method for unlocking a gate railing, applied to the gate railing as described in any one of claims 1 to 6, characterized in that, include: S1: Collect biological height and temperature information around the door lock through the sensing components; S2: The electronic control element identifies whether the target object around the door lock is an adult user based on the biological height information and the biological temperature information; if it is an adult user, the electronic control element outputs a drive control signal; otherwise, it does not output a drive control signal. S3: When the drive component receives the drive control signal, it drives the first lock component to operate, so that the first lock component and the second lock component switch from the locked state to the unlocked state, thereby allowing the movable door to open.

14. The unlocking control method according to claim 13, characterized in that, Step S2 further includes: after determining that the target object is an adult user based on the biological height information and biological temperature information, the pressure value applied to the preset stepping area of ​​the door lock or door guardrail is further collected by the sensing component. When the pressure value reaches the preset threshold, the electronic control element outputs a drive control signal; otherwise, no drive control signal is output.

15. The unlocking control method according to claim 13 or 14, characterized in that, Also includes: When the smoke detector or carbon monoxide sensor detects that the concentration of smoke particles or carbon monoxide gas continuously exceeds the preset safety threshold, the electronic control element will ignore the height, temperature, and pressure detection and directly unlock the door lock.

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