Pet leash device for implementing control of the length of a leash

Abstract

The application discloses a pet leash device for realizing length control of a traction rope, which comprises the traction rope, an automatic winding module, a main control module, a locking module and an identification module. The automatic winding module is used for automatically winding one end of the traction rope. The other end of the traction rope is used for being hung on a pet and being traction. The automatic winding module is provided with a sensing module. When the traction rope is stretched outward, the automatic winding module rotates and drives the sensing module to rotate. The main control module obtains a plurality of pulse signals of the sensing module in the rotating process through the identification module. The motion information of the automatic winding module is determined according to the pulse signals. When the motion information is greater than a preset value, the locking module limits the rotation of the automatic winding module, so that the length of the traction rope is automatically controlled. When the pet suddenly rushes, the elongation of the traction rope can be automatically stopped, and the pet cannot be controlled when suddenly rushing.

Description

Technical Field

[0001] This invention relates to the field of pet supplies, and in particular to a pet leash device that enables control of leash length. Background Technology

[0002] As living standards improve, pet ownership in urban households has gradually become a popular trend. Pets have evolved from guarding homes to providing daily companionship. During pets' daily outings, leashes are needed to restrict their movement, resulting in a wide variety of pet leashes on the market.

[0003] Early pet leashes had fixed-length leashes, often resulting in users having to follow their pets. Later, pet leashes with retractable leashes appeared, usually with a button on the leash to switch between two modes: a fixed-length leash and a freely retractable leash.

[0004] Compared to fixed-length leashes, pet leashes that allow for adjustable leash length are more practical. However, they also have some drawbacks. Switching between fixed-length and retractable-length modes requires manual adjustment by the user. Especially when the pet suddenly lunges forward, the user needs to react immediately, as the leash itself cannot proactively prevent this problem, which can be inconvenient for the user. Summary of the Invention

[0005] To address the aforementioned problems and technical requirements, the inventors have proposed a pet leash device for controlling the length of the leash. The technical solution of this invention is as follows: A pet leash with leash length control is disclosed. The pet leash includes a leash, an automatic winding module, a main control module, a locking module, and an identification module. The automatic winding module automatically winds up one end of the leash, and the other end of the leash is attached to the pet for traction. The automatic winding module is equipped with a sensing module. When the leash is stretched outward, the automatic winding module rotates, causing the sensing module to rotate as well. The main control module obtains multiple pulse signals from the sensing module during rotation through the identification module, and determines the motion information of the automatic winding module based on the pulse signals. When the motion information exceeds a preset value, the locking module restricts the rotation of the automatic winding module.

[0006] A further technical solution is that the motion information includes speed information and acceleration information. The speed information is determined by two adjacent pulse signals, and the acceleration information is determined by two adjacent speed information. When the speed information is greater than a first preset value and the acceleration information is greater than a second preset value, the locking module restricts the rotation of the automatic winding module.

[0007] A further technical solution is that after the locking module locks the automatic winding module for the first time, the main control module obtains the pulse signal, and the locking module locks for the second time.

[0008] A further technical solution is that the identification module includes at least two Hall sensors. When the automatic winding module rotates, the main control module obtains a first set of pulse signals through the first Hall sensor and a second set of pulse signals through the second Hall sensor. The extension or shortening state of the traction rope is determined based on the edge information of the first set of pulse signals and the second set of pulse signals.

[0009] A further technical solution is to determine the fixed length position of the traction rope as the initial point, and the elongation length of the traction rope does not exceed the length of the initial point. When the elongation length of the traction rope is less than the length of the initial point, the automatic winding module rotates freely. When the elongation length of the traction rope is equal to the length of the initial point, the locking module restricts the rotation of the automatic winding module.

[0010] A further technical solution is as follows: the first set of pulse signals is the signal that the edge information is detected first during the extension process of the traction rope; the second set of pulse signals is the signal that the edge information is detected first during the shortening process of the traction rope; when the traction rope shortens, the main control module determines the number of signals in the second set of pulse signals and counts a first number; when the traction rope extends, the main control module determines the number of signals in the first set of pulse signals and counts a second number; when the first number is equal to the second number, the locking module restricts the rotation of the automatic winding module.

[0011] A further technical solution is that when the main control module does not detect the pulse signal within a preset time, it determines that the pet leash has entered a sleep state, and in the sleep state, the pet leash enters a low power mode.

[0012] A further technical solution is that when the main control module detects the pulse signal in the sleep mode, the main control module determines the number of the pulse signal as a count of the amount of exercise.

[0013] A further technical solution is that the sensing module includes multiple magnetic components, each of which is distributed on the outside of the automatic winding module.

[0014] A further technical solution is that the identification module includes a sector block, on which the Hall sensor is disposed, and the sensing module is located between the sector block and the automatic winding module.

[0015] This invention proposes a pet leash device that controls the length of the leash. Multiple pulse signals can determine the motion information of the automatic winding module. The motion information of the automatic winding module can be determined based on the pulse signals, which can be speed information or acceleration motion information. When the motion information is greater than a preset information, the locking module restricts the rotation of the automatic winding module, thereby controlling the length of the leash and preventing the pet from suddenly lunging and becoming uncontrollable.

[0016] By using both speed and acceleration information, we can further ensure that the pet will not suddenly accelerate. Speed ​​information mainly provides the pet's current running speed, while acceleration information provides the pet's instantaneous speed. Compared with a single motion information, the two motion information provide more complete overall data. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the pet leash device according to the present invention.

[0018] Figure 2 This is a schematic diagram of the pulse signal of this invention application.

[0019] Figure 3 This is a schematic diagram of the identification module of this invention application. Detailed Implementation

[0020] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0021] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0022] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0023] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0024] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0025] It should be noted that when an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. When an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0026] The specific embodiments of the present invention will be further described below with reference to the accompanying drawings.

[0027] like Figure 1As shown, a pet leash control device for controlling leash length includes a leash, an automatic winding module 1, a main control module 2, a locking module, and an identification module 4. The automatic winding module 1 automatically winds up one end of the leash, while the other end is attached to the pet for traction. The automatic winding module 1 has a torsion spring structure inside, which automatically winds the leash back up when there is no external force. When the user pulls out the leash, they only need to overcome the elastic force of the torsion spring structure. The main control module 2 is used for the control and calculation of the entire pet leash device. A commercially available chip processing module with computing capabilities can be used as the main control module. The other end of the leash is attached to the pet for traction. The automatic winding module 1 is equipped with a sensing module 5.

[0028] The locking module has the effect of active movement. For example, it uses a motor-driven latch structure. The motor drives the latch structure to move, thereby achieving the locking effect on the automatic winding module 1.

[0029] The identification module 4 is a sensor structure. In this application, a Hall sensor is used to achieve the identification effect. Of course, other similar sensors with identification effects can also be used for identification. Correspondingly, the sensing module uses a magnetic component to achieve the sensing effect. When the magnetic component passes through the Hall sensor, its activity signal can be identified. Correspondingly, through the cooperation between the identification module and the sensing module, the identification module can identify the activity signal of the sensing module.

[0030] When the traction rope is stretched outward, the automatic winding module 1 rotates, driving the sensing module 5 to rotate as well. The main control module 2 acquires multiple pulse signals from the sensing module 5 during its rotation via the identification module 4. The sensing module 5 rotates along with the automatic winding module 1, continuously passing through the identification module 4 during this rotation. The main control module 2 can convert the activity signals of the sensing module 5 into pulse signals, such as... Figure 2 As shown, a set of continuous pulse signals A is formed. Each pulse signal corresponds to one pass of the sensing module 5 through the identification module 4. The set of pulse signals shown in the example has a total of three. Each individual pulse signal includes a high level before the sensing module enters the identification module, a falling edge of the triggered signal, a low level when entering the identification module, and a rising edge when leaving the identification module, for a total of four signal segments. Thus, multiple pulse signals can determine the motion information of the automatic winding module 1. The motion information of the automatic winding module 1 can be determined based on the pulse signals. It can be speed information or acceleration motion information. When the motion information is greater than the preset information, the locking module restricts the rotation of the automatic winding module 1, thereby controlling the length of the leash and preventing the pet from suddenly lunging and becoming uncontrollable.

[0031] The preset information can be values ​​pre-set in the main control module, or it can be modified according to the user's actual situation. For example, it can be set according to the size of the pet dog, with larger pet dogs being set to be more sensitive.

[0032] Furthermore, the motion information includes velocity and acceleration information. Velocity information is determined by two adjacent pulse signals, and acceleration information is determined by two adjacent velocity information. When the velocity information is greater than a first preset value and the acceleration information is greater than a second preset value, the locking module restricts the rotation of the automatic winding module. Velocity information can be determined by two pulse signals, and acceleration information can be determined by three pulse signals, meaning two velocity information are required. Using both velocity and acceleration information can further ensure that the pet does not suddenly surge forward. Velocity information mainly provides the current running speed of the pet, while acceleration information provides the instantaneous speed of the pet. Compared to one velocity information, two motion information provide more complete overall data.

[0033] In practical use, since the locking module is still a mechanical locking structure, it is prone to failure to trigger, such as signal interference or incomplete mechanical locking. Therefore, this application also proposes a dual locking method. After the locking module locks the automatic winding module 1 for the first time, the main control module 2 obtains a pulse signal, and the locking module performs a second locking. By continuing to monitor whether a pulse signal is generated after the locking operation, it is determined whether the automatic winding module is rotating. If there is still a pulse signal, the locking operation continues.

[0034] The identification module 4 includes at least two Hall sensors. When the automatic winding module 1 rotates, the sensing module 5 will sequentially pass through the first Hall sensor and the second Hall sensor. For example, when the first Hall sensor obtains the signal from the sensing module before the second Hall sensor, it is determined that the traction rope is in an extended state. When the second Hall sensor obtains the signal from the sensing module before the first Hall sensor, it is determined that the traction rope is in a shortened state.

[0035] The main control module 2 acquires a first set of pulse signals A through the first Hall sensor and a second set of pulse signals B through the second Hall sensor. Based on the edge information of the first and second sets of pulse signals, it determines the elongation and shortening state of the traction rope. Figure 2The diagram shows two sets of pulse signals. For easy differentiation, one set of pulse signals is represented by a solid line, and the other by a dashed line. It can be seen that both sets of pulse signals include four stages: high level, falling edge, low level, and rising edge. By determining which of the first Hall sensor and the second Hall sensor acquires the falling edge signal first, it is possible to determine whether the traction rope is currently extended or shortened, thereby obtaining the current motion state of the traction rope and performing locking operations more effectively.

[0036] This application also proposes a concept of fixed-length traction rope, that is, setting a position point at which the traction rope can only shorten and cannot extend. The fixed-length position point of the traction rope is determined as the initial point. The extension length of the traction rope does not exceed the length of the initial point. When the extension length of the traction rope is less than the length of the initial point, the automatic winding module rotates freely. When the extension length of the traction rope is equal to the length of the initial point, the locking module restricts the rotation of the automatic winding module, thereby avoiding the situation where the rope drags on the ground and gets dirty, and also avoiding the problem of getting tangled in the legs of people and pets.

[0037] Furthermore, the first set of pulse signals is the signal that the edge information is detected first during the extension of the traction rope, and the second set of pulse signals is the signal that the edge information is detected first during the shortening of the traction rope. When the traction rope shortens, the main control module determines the number of signals in the second set of pulse signals and counts the first number. When the traction rope extends, the main control module determines the number of signals in the first set of pulse signals and counts the second number. When the first number equals the second number, the locking module restricts the rotation of the automatic winding module.

[0038] Since the length of the traction rope is fixed between each signal, only the duration varies, the length of the traction rope can be measured by counting. By counting the number of signals during the shortening process, the amount of shortening of the traction rope can be determined, thereby obtaining the distance that can be extended, achieving the purpose of a fixed-length traction rope.

[0039] When the main control module 2 does not detect a pulse signal within a preset time, it determines that the pet leash has entered a sleep state. In the sleep state, the pet leash enters a low power mode. In the low power mode, the entire pet leash can shut down power-consuming components to reduce power loss.

[0040] When the main control module detects a pulse signal in sleep mode, it determines the number of pulse signals as a count of movement. By determining the number of pulse signals, it can obtain the current length of the leash's movement, thereby determining the dog's activity level and alerting the user to observe.

[0041] The sensing module 5 includes multiple magnetic components, each of which is evenly distributed on the outside of the automatic winding module. The evenly distributed magnetic components can acquire pulse signals of the same length, thus better estimating speed and acceleration information.

[0042] like Figure 3 As shown, the identification module includes a sector block 6, on which a Hall sensor is installed. The sensing module 5 is located between the sector block 6 and the automatic winding module 1. The sector block 6 protrudes from the automatic winding module 1 and can cover the magnetic component, thus facilitating information acquisition.

[0043] The above descriptions are merely preferred embodiments of this application, and the present invention is not limited to the above embodiments. It is understood that other improvements and variations directly derived or conceived by those skilled in the art without departing from the spirit and concept of the present invention should be considered to be included within the protection scope of the present invention.

Claims

1. A pet leash device for controlling the length of the leash, characterized in that, The pet leash includes a leash, an automatic winding module, a main control module, a locking module, and an identification module. The automatic winding module automatically winds up one end of the leash, and the other end of the leash is attached to the pet for traction. The automatic winding module is equipped with a sensing module. When the leash is stretched outward, the automatic winding module rotates, causing the sensing module to rotate as well. The main control module obtains multiple pulse signals from the sensing module during its rotation through the identification module, and determines the motion information of the automatic winding module based on the pulse signals. When the motion information exceeds a preset value, the locking module restricts the rotation of the automatic winding module.

2. A pet leash device for controlling the length of a leash according to claim 1, characterized in that, The motion information includes velocity information and acceleration information. The velocity information is determined by two adjacent pulse signals, and the acceleration information is determined by two adjacent velocity information. When the velocity information is greater than a first preset value and the acceleration information is greater than a second preset value, the locking module restricts the rotation of the automatic winding module.

3. A pet leash device for controlling the length of a leash according to claim 1, characterized in that, After the locking module locks the automatic winding module for the first time, the main control module receives the pulse signal, and the locking module locks for the second time.

4. A pet leash device for controlling the length of a leash according to claim 1, characterized in that, The identification module includes at least two Hall sensors. When the automatic winding module rotates, the main control module obtains a first set of pulse signals through the first Hall sensor and a second set of pulse signals through the second Hall sensor. The extension or shortening state of the traction rope is determined based on the edge information of the first set of pulse signals and the second set of pulse signals.

5. A pet leash device for controlling the length of a leash according to claim 4, characterized in that, The fixed length position of the traction rope is determined as the initial point. The elongation of the traction rope does not exceed the length of the initial point. When the elongation of the traction rope is less than the length of the initial point, the automatic winding module rotates freely. When the elongation of the traction rope is equal to the length of the initial point, the locking module restricts the rotation of the automatic winding module.

6. A pet leash device for controlling leash length according to claim 5, characterized in that, The first set of pulse signals is the signal that the edge information is detected first during the extension process of the traction rope. The second set of pulse signals is the signal that the edge information is detected first during the shortening process of the traction rope. When the traction rope shortens, the main control module determines the number of signals in the second set of pulse signals and counts a first number. When the traction rope extends, the main control module determines the number of signals in the first set of pulse signals and counts a second number. When the first number is equal to the second number, the locking module restricts the rotation of the automatic winding module.

7. A pet leash device for controlling the length of a leash according to claim 1, characterized in that, When the main control module does not detect the pulse signal within a preset time, it determines that the pet leash has entered a sleep state, and in the sleep state, the pet leash enters a low power mode.

8. A pet leash device for controlling the length of a leash according to claim 7, characterized in that, When the main control module detects the pulse signal in the sleep mode, the main control module determines the number of the pulse signal as a count of the amount of exercise.

9. A pet leash device for controlling the length of a leash according to claim 1, characterized in that, The sensing module includes multiple magnetic components, each of which is distributed on the outside of the automatic winding module.

10. A pet leash device for controlling the length of a leash according to claim 4, characterized in that, The identification module includes a sector block, on which the Hall sensor is disposed, and the sensing module is located between the sector block and the automatic winding module.

Images