Fishing reel electromagnetic brake device, fishing line, and speed measurement mechanism

Abstract

The fishing reel, fishing line, and speed measurement mechanism are provided with an electromagnetic brake device for a fishing reel that winds or unwinds the fishing line by the rotation of the spool. This electromagnetic brake device for a fishing reel includes a brake mechanism having a brake coil and a magnetic brake member, a guide ring speed measurement mechanism, a rotation detection mechanism, and a controller. The fishing line unwinding speed of the fishing reel and the tangential speed at which the spool rotates to unwind the fishing line are detected in real time, the difference between the two is compared, and the braking force of the spool is controlled to achieve closed-loop control, thereby improving the stability of the braking effect. This electromagnetic brake device for a fishing reel can automatically correct the braking force, automatically set the stored parameters, and reduce the complexity of parameter setting.

Description

Technical Field

[0001] This disclosure claims the priority of a Chinese patent application filed with the Chinese Patent Office on July 10, 2022, with the application number 202210806287.1 and the invention title "Fishing Reel Electromagnetic Brake Device and Fishing Line", and incorporates all of its contents into this application by reference.

[0002] This disclosure claims the priority of a Chinese patent application filed with the Chinese Patent Office on July 27, 2022, with the application number 202210893706.X and the invention title "Fishing Reel Electromagnetic Brake Device and Fishing Line", and incorporates all of its contents into this application by reference.

[0003] This disclosure claims the priority of a Chinese patent application filed with the Chinese Patent Office on February 16, 2023, with the application number 202310119377.8 and the invention title "Fishing Reel Electromagnetic Brake Device, Fishing Line and Speed Measuring Mechanism", and incorporates all of its contents into this application by reference.

[0004] This disclosure claims the priority of a Chinese patent application filed with the Chinese Patent Office on March 6, 2023, with the application number 202310206146.0 and the invention title "Line Speed Measuring Device", and incorporates all of its contents into this application by reference.

[0005] This application relates to fishing supplies, and specifically, to a fishing reel electromagnetic brake device, a fishing line and a speed measuring mechanism.

Background Art

[0006] In casting with a fishing reel, the lure flies due to inertia, the fishing line is drawn out from the line outlet of the fishing reel, the spool is rotated to release the fishing line, and due to air resistance and friction of the fishing line, the flight speed of the lure decays. When the speed at which the spool rotates due to inertia to release the fishing line is greater than the speed at which the fishing line is drawn out from the line outlet of the fishing reel, some of the fishing line stays in the fishing reel to form floating line, and further entanglement failure of the fishing line is caused. Therefore, in order to prevent entanglement of the fishing line during casting, the fishing reel is provided with a device for braking and decelerating the spool. In the fishing reel electromagnetic brake device disclosed in Chinese Patent Examination Announcement No. CN1965645B and Chinese Patent Examination Announcement No. CN110432236A, when the spool rotates to release the fishing line, a magnetic rotor (or rotor coil) that rotates integrally with the spool and a stator coil (or magnetic stator) provided on the fishing reel body rotate relative to each other. Using pre-set parameters and programs, the induced current in the stator coil (or rotor coil) is controlled to brake and decelerate the spool.

Summary of the Invention

Problems to be Solved by the Invention

[0007] In actual fishing, since factors such as wind force, lures, and fishing lines vary, during casting, the attenuation pattern of the fishing line release speed at which the fishing line is drawn out from the fishing reel is affected by complex factors and is uncertain. According to the prior art, it is impossible to detect this fishing line release speed, nor can it detect the matching state between the fishing line release speed and the speed at which the spool rotates to release the fishing line. It only performs open-loop control on the braking force of the spool based on pre-set programs and parameters, and cannot dynamically correct and control the spool rotation speed deviated from the appropriate value, resulting in an unstable braking effect. When the braking force is insufficient, if the spool rotates too fast, it will cause entanglement failure of the fishing line. When the braking force is too large, the energy for the lure to fly will be excessively consumed, and the flying distance of the lure will be shortened. In addition, in the conventional electromagnetic braking device for fishing reels, it was necessary to perform complex parameter settings in advance.

Means for Solving the Problem

[0008] According to various embodiments of the present application, a fishing reel electromagnetic braking device, a fishing line, and a speed measurement mechanism for solving at least one of the above problems are provided.

[0009] According to an embodiment of the first aspect of the present application, a fishing reel electromagnetic brake device is provided.The fishing reel equipped with the electromagnetic brake device includes a guide ring and a spool that rotates to wind or release fishing line. The electromagnetic brake device for the fishing reel includes a brake mechanism. The brake mechanism includes a brake coil and a magnetic brake member that are arranged opposite to each other. One of both the magnetic brake member and the brake coil rotates integrally with the spool to form a rotor, and the other is arranged on the main body of the fishing reel to form a stator. When releasing the fishing line, the magnetic brake member and the brake coil rotate relatively, interact with each other to generate electromagnetic induction, and brake the spool. The electromagnetic brake device for the fishing reel is a linear velocity sensor provided on the inner wall of the guide ring, and a guide ring velocity measurement mechanism configured to detect the velocity information of the fishing line passing through the guide ring. It is provided on the main body of the fishing reel, includes a main rotation speed sensor and a rotation direction detection device, and is a rotation detection mechanism configured to detect the rotation information of the spool including rotation pulses and rotation direction. It is provided on the main body of the fishing reel and includes a controller having a processor, a memory, a current control unit, and an I / O interface. The controller is electrically connected to the guide ring velocity measurement mechanism and the rotation detection mechanism via the I / O interface. The current control unit is electrically connected to the brake coil, and the memory records and stores the conversion relationship parameters among the winding turn count, rotation speed, and tangential speed of the spool. Further provided is the controller. When releasing the fishing line, the controller calculates the passing velocity of the guide ring from the velocity information, calculates the rotation direction, rotation speed, and count value of the winding turn count of the spool from the rotation information, stores the count value of the winding turn count in the memory. When the rotation direction of the spool is the fishing line release direction, the tangential speed is calculated from the winding turn count, rotation speed, and the conversion relationship parameters of the spool, and a correction signal for correcting the rotation speed of the spool is calculated from the tangential speed and the current passing velocity of the guide ring. By controlling the electromagnetic induction current in the brake coil via the current control unit according to the correction signal, the braking force of the spool is controlled to achieve closed-loop control.

[0010] Preferably, in the embodiment of the first aspect, the guide ring speed measuring mechanism detects the speed information and causes the controller to process it. As a realization method, the guide ring speed measuring mechanism further includes a projection light source and a photoelectric sensor. The fishing line used has color intervals with different reflectivities and a fixed mark length arranged alternately. The projection light source irradiates the fishing line, and the photoelectric sensor converts the detected reflected light signal into an electrical pulse signal, and uses the electrical pulse signal and the fixed mark length for calculating the passing speed of the guide ring. Or the guide ring speed measuring mechanism further includes a projection light source and an image sensor. The projection light source irradiates the fishing line, and the image sensor acquires information on a local image of the moving fishing line at regular time intervals. The controller compares, analyzes, and processes the local images in time series, and uses the distance that the local image has moved at the regular time intervals for calculating the passing speed of the guide ring. Or the guide ring speed measuring mechanism is a magnetic sensor. The fishing line used has magnetic marks with a fixed mark length arranged alternately. The magnetic sensor converts the detected magnetic signal into an electrical pulse signal, and uses the electrical pulse signal and the fixed mark length for calculating the passing speed of the guide ring.

[0011] Preferably, in the embodiment of the first aspect, the controller realizes the control of the electromagnetic induction current in the brake coil by any one of the following: when the current control unit is a switching element, the correction signal controls the on / off of the switching element by on / off switching; or when the current control unit is a switching element, the correction signal controls the ratio of the on / off time of the switching element by adjusting the duty ratio of the PWM signal; or when the current control unit is a current intensity adjusting element, the correction signal adjusts the current intensity in the current intensity adjusting element by changing the intensity.

[0012] Preferably, in the embodiment of the first aspect, the closed-loop control is realized by any one of the following: using the passing speed of the guide ring as the input target control value, and using the tangential speed as the output controlled value and the feedback value; or using the set allowable speed difference threshold as the input target control value, and using the difference value between the tangential speed and the passing speed of the guide ring as the output controlled value and the feedback value; or using the set allowable floating line length threshold as the input target control value, and using the floating line length as the output controlled value and the feedback value; or using the set integral difference control value as the input target control value, and using the speed integral difference value as the output controlled value and the feedback value.

[0013] Preferably, in the embodiment of the first aspect, the main rotation speed sensor is a photoelectric sensor, a Hall sensor, a speed measurement sensor based on imaging, an electromagnetic sensor, or an inductive sensor.

[0014] The embodiment of the second aspect of the present application provides a fishing line. This fishing line has a signal mark section with a fixed mark length. The signal mark can be detected by a guide ring speed measurement mechanism of a fishing reel and converted into an electrical pulse signal. The electrical pulse signal and the fixed mark length are used for calculating the passing speed of the guide ring. The signal mark section is formed by alternately arranging color sections with different reflectivities. The guide ring speed measurement mechanism has a projection light source and a photoelectric sensor.

[0015] The embodiment of the third aspect of the present application provides a fishing line. This fishing line has a signal mark section with a fixed mark length. The signal mark can be detected by a guide ring speed measurement mechanism of a fishing reel and converted into an electrical pulse signal. The electrical pulse signal and the fixed mark length are used for calculating the passing speed of the guide ring. A magnetic material is attached to the fishing line. The signal mark section is formed by a series of recorded magnetic signals. The guide ring speed measurement mechanism is equipped with a magnetic sensor.

[0016] An embodiment of the fourth aspect of the present application provides a speed measurement mechanism. The speed measurement mechanism is a linear velocity sensor provided on the inner wall of the guide ring, configured to detect the speed information of the fishing line passing through the guide ring, and is realized by any one of the following methods.

[0017] The speed measurement mechanism further includes a projection light source and a photoelectric sensor. The fishing line used has color intervals with different reflectivities and a fixed mark length arranged alternately. The projection light source irradiates the fishing line, and the photoelectric sensor converts the detected reflected light signal into an electrical pulse signal, and uses the electrical pulse signal and the fixed mark length to calculate the passing speed of the guide ring. Or the speed measurement mechanism further includes a projection light source and an image sensor. The projection light source irradiates the fishing line, and the image sensor acquires information on the local image of the moving fishing line at regular time intervals, compares and analyzes the local images in time series, and uses the distance that the local image has moved at the regular time intervals to calculate the passing speed of the guide ring. Or the speed measurement mechanism is a magnetic sensor. The fishing line used has magnetic marks with a fixed mark length arranged alternately. The magnetic sensor converts the detected magnetic signal into an electrical pulse signal, and uses the electrical pulse signal and the fixed mark length to calculate the passing speed of the guide ring.

[0018] Preferably, in the embodiment of the fourth aspect, when the speed measurement mechanism includes a photoelectric sensor or an image sensor, the speed measurement mechanism further includes a light leakage notch provided on the inner wall of the guide ring. The detection direction of the linear velocity sensor faces the light leakage notch. When the speed measurement mechanism is realized by a magnetic sensor, the magnetic sensor is a magnetic head protruding from the inner wall of the guide ring. The speed measurement mechanism further includes a positioning support portion provided on the inner wall of the guide ring. The positioning support portion keeps the gap between the fishing line in the guide ring and the magnetic head at 0 or maintains a stable operating gap.

[0019] According to an embodiment of the fifth aspect of the present application, a line speed measuring device including a linear speed sensor is provided. Guide rings are further provided on both sides of the detection window of the linear speed sensor. Both the linear speed sensor and the guide rings are fixedly assembled to a connection device. The line to be measured passes through the guide rings. The guide rings guide the line to be measured so that a measurable distance is maintained between the line to be measured and the linear speed sensor. The line speed measuring device is configured to measure the winding and unwinding speeds of the fishing line on a fishing reel. The line to be measured is a fishing line, and the linear speed sensor is a reflection-type speed measuring sensor or an imaging-based speed measuring sensor.

[0020] Preferably, in the embodiment of the fourth aspect, the connection device is the housing of the linear speed sensor, and the linear speed sensor and the guide rings are fixedly connected integrally through the housing, or the connection device is at least one of a fishing rod or a fishing reel. In the speed measurement operating state, the linear speed sensor and the guide rings maintain a relatively fixed positional relationship.

[0021] According to an embodiment of the sixth aspect of the present application, there is provided a fishing reel electromagnetic brake device used in a fishing reel having a guide ring and a spool. The fishing reel electromagnetic brake device includes a brake coil and a magnetic brake member that rotates integrally with the spool. The brake coil is fixed to the fishing reel body. When releasing fishing line, the brake coil brakes the spool by electromagnetic induction. The fishing reel electromagnetic brake device is a guide ring speed measurement mechanism provided at the fishing line outlet of the fishing reel and configured to detect speed information of the fishing line passing through the guide ring. The fishing line has a signal mark sequence arranged alternately. The signal mark sequence is adapted to the geometric parameters of the spool such that the ratio of the section length of the signal mark sequence to the corresponding winding diameter satisfies a preset value, and the section length of the signal mark sequence increases or decreases proportionally according to the increase or decrease of the winding diameter of the fishing line on the spool. The fishing reel electromagnetic brake device further includes a rotation detection mechanism provided on the main body of the fishing reel and including a rotation speed sensor and configured to detect the rotation speed information of the spool, and a controller provided on the main body of the fishing reel and including a processor, a memory, and a current control unit. The controller is electrically connected to the guide ring speed measurement mechanism and the rotation detection mechanism. The current control unit is electrically connected to the brake coil, and the memory stores the preset value. When releasing fishing line, the controller calculates the number of signal marks of the fishing line passing through the fishing line outlet and the rotation angle of the spool within the same period by the controller, calculates a correction signal for correcting the rotation speed of the spool by calculating the guide ring passing speed and the tangential speed from the number of signal marks, the rotation angle of the spool, and the preset value, and performs closed-loop control by controlling the electromagnetic induction current in the brake coil via the current control unit according to the correction signal.

[0022] Preferably, in the embodiment of the sixth aspect, the linear velocity sensor is provided on the inner wall or side surface of the guide ring of the fishing reel, and its detection direction is directed to the fishing line passing through the line outlet. The guide ring speed measurement mechanism detects the speed information and causes the controller to process it. As a realization method, the guide ring speed measurement mechanism further includes a projection light source and a photoelectric sensor. The signal mark sequence is formed by alternately arranging color sections with different reflectivities. The projection light source irradiates the fishing line, and the photoelectric sensor converts the detected reflected light signal into an electrical pulse signal, or the guide ring speed measurement mechanism is a magnetic sensor, the signal mark sequence is formed by alternately arranging magnetic marks, and the magnetic sensor converts the detected magnetic signal into an electrical pulse signal.

[0023] Preferably, in the embodiment of the sixth aspect, the controller realizes the control of the electromagnetic induction current in the brake coil by any one of the following: the current control unit is a switching element, and the correction signal controls the on / off of the switching element by on / off switching; or the current control unit is a switching element, and the correction signal controls the ratio of the on / off time of the switching element by adjusting the duty ratio of the PWM signal; or the current control unit is a current intensity adjustment element, and the correction signal adjusts the current intensity in the current intensity adjustment element by changing the intensity.

[0024] Preferably, in the embodiment of the sixth aspect, the closed-loop control is realized by any one of the following: using the passing speed of the guide ring as the input target control value and the tangential speed as the output controlled value and the feedback value; or using the set allowable speed difference threshold as the input target control value and the difference value between the tangential speed and the passing speed of the guide ring as the output controlled value and the feedback value; or using the set allowable floating line length threshold as the input target control value and the floating line length as the output controlled value and the feedback value; or using the set integral difference control value as the input target control value and the speed integral difference value as the output controlled value and the feedback value.

[0025] Preferably, in the embodiment of the sixth aspect, the rotational speed sensor is a photoelectric sensor, a Hall sensor, a speed measurement sensor based on imaging, an electromagnetic sensor, or an inductive sensor.

[0026] According to an embodiment of the seventh aspect of the present application, there is provided a fishing line adapted to be used in the fishing reel electromagnetic brake device according to any one of the sixth aspects.

[0027] According to an embodiment of the eighth aspect of the present application, there is provided a fishing reel electromagnetic brake device used in a fishing reel having a guide ring and a spool. The fishing reel electromagnetic brake device includes a brake coil and a magnetic brake member that rotates integrally with the spool. The brake coil is fixed to the fishing reel body. When the fishing line is released, the brake coil brakes the spool by electromagnetic induction. The fishing reel electromagnetic brake device includes a linear velocity sensor provided at a fishing line outlet of the fishing reel, and a guide ring speed measurement mechanism configured to detect a guide ring passing speed. The fishing reel electromagnetic brake device further includes a speed measurement device based on imaging of the spool provided on the body of the fishing reel, with a detection direction directed toward the surface fishing line of the spool and configured to detect a tangential speed of the surface fishing line. The fishing reel electromagnetic brake device further includes a controller provided on the body of the fishing reel, including a processor, a memory, and a current control unit, and being electrically connected to the guide ring speed measurement mechanism. The current control unit is electrically connected to the brake coil. When the fishing line is released, the controller performs closed-loop control. The controller calculates a correction signal for correcting the rotational speed of the spool from the guide ring passing speed and the tangential speed, and controls the electromagnetic induction current in the brake coil via the current control unit according to the correction signal.

[0028] Preferably, in the embodiment of the eighth aspect, the line speed sensor is provided on the inner wall or side surface of the guide ring of the fishing reel so that the detection direction is directed to the fishing line released from the guide ring. The guide ring speed measurement mechanism detects the speed information and causes the controller to process it. As a realization method, the guide ring speed measurement mechanism further includes a projection light source and a photoelectric sensor. The fishing line to be used has color sections with different reflectivities having a fixed mark length arranged alternately. The projection light source irradiates the fishing line, and the photoelectric sensor converts the detected reflected light signal into an electrical pulse signal, and uses the electrical pulse signal and the fixed mark length for calculating the passing speed of the guide ring. Or the guide ring speed measurement mechanism further includes a projection light source and an image sensor. The projection light source irradiates the fishing line, and the image sensor acquires information on a local image of the moving fishing line at regular time intervals. The controller compares, analyzes, and processes the local images in time series, and uses the distance that the local image has moved at the regular time intervals for calculating the passing speed of the guide ring. Or the guide ring speed measurement mechanism is a magnetic sensor. The fishing line to be used has magnetic marks having a fixed mark length arranged alternately. The magnetic sensor converts the detected magnetic signal into an electrical pulse signal, and uses the electrical pulse signal and the fixed mark length for calculating the passing speed of the guide ring.

Advantages of the Invention

[0029] Compared with the prior art, the beneficial effects of the present application are as follows. The fishing line and speed measurement mechanism of the present application realize the detection of the fishing line release speed of the fishing reel. In addition, the electromagnetic brake device of the fishing reel of the present application controls the braking force according to the matching state between the fishing line release speed and the tangential speed at which the spool rotates to release the fishing line, timely corrects the deviation of the spool rotation speed, and realizes closed-loop control, thereby improving the stability of the brake of the fishing reel. In addition, the embodiments provided by the present application can also reduce the complexity of parameter setting. Through the following drawings and descriptions, the details of one or more embodiments of the present application will be described. Other features, objects, and advantages of the present application will become apparent from the specification, drawings, and claims.

Brief Description of the Drawings

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Embodiments for Carrying out the Invention

[0050] Hereinafter, embodiments of the present application will be further described. However, all of these descriptions are illustrative and are intended to enable those skilled in the art to implement the embodiments of the present application, and do not limit the protection scope of the present application. Unless there is no contradiction, the examples and the features within the examples in the present application may be combined with each other.

[0051] In this specification, although it is essential for actual implementation, those that have nothing to do with the understanding of the present application are not described. For example, the power supply, compiler instructions, the specific operation process of the processor, the specific algorithm of closed-loop control, etc. are not described. All of these contents are well-known technologies, and those skilled in the art should be well aware that they can apply these well-known technologies to the implementation of the present application in various ways just by referring to this specification.

[0052] Throughout the drawings, the same or similar reference numerals indicate the same or similar elements, or elements having the same or similar functions.

[0053] In this specification, phrases such as "an embodiment" or "some embodiments" mean that the specific features, structures, or characteristics described in combination with the embodiment are included in one or more embodiments of this specification. Therefore, unless otherwise emphasized, the phrases "in one embodiment", "in some embodiments", "in some other embodiments", "in some other different embodiments", etc. that appear in different parts of this specification do not necessarily refer to the same embodiment, but mean "one or more but not all embodiments".

[0054] Also, in the description of the embodiments of this specification, "a plurality" means two or more, and the terms "include", "comprise", "have" and their variants mean "include but are not limited to" unless otherwise emphasized.

[0055] The "guide ring" or "guide ring" referred to in this application specifically refers to the component at the line outlet of the fishing reel through which the extended fishing line passes and is drawn out of the fishing reel. For example, usually, the "line guide" of a two-bearing reel is such a component.

[0056] The guide ring passing speed V referred to in this application specifically means the speed at which the fishing line passes through the guide ring 400 when the fishing line is paid out or retrieved, or is regarded as equivalent to the length of the fishing line passing through the guide ring 400 during a certain observation period T. The tangential speed V referred to in this application t specifically means the speed at which the fishing line is wound or released when the spool 200 rotates, or is regarded as equivalent to the length of the fishing line wound or released by the rotation of the spool 200 during a certain observation period T. The rotational speed V referred to in this application r specifically means the rotational speed of the spool 200, or is regarded as equivalent to the number of rotations of the spool 200 during a certain observation period T. The above-mentioned observation period T may be a fixed absolute time length, such as 1 second, or a relative reference period. For example, the period during which the spool 200 rotates by a certain angle A may be used as the observation period T.

[0057] In some embodiments, both the speed at which the fishing line passes through the line outlet and the speed at which the spool releases the fishing line are divided by a certain measurement conversion numerical value at the same time to obtain the "relative guide ring passing speed" and the "relative tangential speed" respectively. In this case, the above-mentioned "guide ring passing speed V" may also be the relative guide ring passing speed, and the above-mentioned "tangential speed V t " may also be the relative tangential speed, and the details thereof will be described in detail in the part of Example 2.

[0058] The "number of winding turns" or "spool winding turns" according to this application specifically refers to the number of winding turns of the fishing line on the spool. The "fishing line release" according to this application specifically refers to the operating state in which the spool releases the fishing line. The "winding diameter" or "winding body diameter" according to this application specifically refers to the overall diameter of the spool on which the fishing line is wound.

[0059] The controller according to this application refers to a circuit device having a circuit board and electronic components and the stored software. The current control unit according to this application specifically refers to an element or a combination of elements that performs on / off switching control of current or control of current intensity change using an input signal. The electrical connection according to this application specifically refers to a connection method that transmits an electrical signal or electrical energy by electrical circuit connection or wireless connection.

[0060] Figures 1 and 2 show a fishing reel in the prior art. This fishing reel includes a fishing reel main body 100, a spool 200, a clutch switch 300, a guide ring 400, and a handle 500. Inside the fishing reel, a gear transmission mechanism and a clutch mechanism are further provided. When winding the fishing line, the clutch mechanism is engaged, and the handle 500 rotates the spool 200 via the gear transmission mechanism. When the clutch switch 300 is pressed, the clutch mechanism disengages, and the spool 200 and the transmission mechanism are separated. At this time, the spool 200 becomes rotatable and enters the fishing line release state. Left and right side plates are provided on both sides of the spool 200, and the spool 200 and the spool shaft 202 are fixed integrally and interlockingly (see Figure 2). Left and right covers are provided on both sides of the fishing reel main body 100. The above is the structural form generally possessed by some fishing reels in the prior art. A fishing reel with such a structure is generally also referred to as a two-bearing reel.

[0061] This application relates to a braking mechanism of a fishing reel electromagnetic braking device. Braking a rotating mechanism using electromagnetic induction is a known technique, and specific applications thereof include, for example, related spool braking members including a plurality of magnets and a plurality of coils, as disclosed in Chinese Patent Application Publication Nos. CN110432236A and CN1806540A, and some automotive brake energy recovery systems. To facilitate the understanding of the embodiments of this application, first, a conventionally known braking mechanism will be described.

[0062] As shown in FIG. 2, the braking mechanism 800 includes a brake coil 801 and a magnetic braking member 802. The braking mechanism 800 brakes the spool 200 by electromagnetic induction during the process of releasing the fishing line. Here, the magnetic braking member 802 is a magnetic rotor that rotates integrally with the spool 200, and the brake coil 801 is a stator coil provided on the fishing reel main body 100. By arranging the brake coil 801 and the magnetic braking member 802 to face each other, a induced current is generated in the brake coil 801 due to the rotation of the magnetic braking member 802.

[0063] As a more specific example of the braking mechanism, as shown in FIG. 2, the magnetic braking member 802 is formed by combining four permanent magnets. The magnetic braking member 802 is rotatably attached to the spool shaft 202 integrally with the spool shaft 202 via a connecting member 803. The spool shaft 202 is rotatably attached to the spool 200 integrally with the spool 200. The plurality of magnetic poles of the magnetic braking member 802 are arranged rotationally symmetrically about the axis of the spool shaft 202. Correspondingly, the brake coil 801 is a combination of four single coils connected in series, and is fixed to the fishing reel main body 100 via the circuit board of the controller 900. The brake coil 801 is arranged to face the magnetic braking member 802 on the outer peripheral side of the magnetic braking member 802, and is arranged coaxially with the axis of the spool shaft 202.

[0064] In some examples, the brake coil 801 may be used as the rotor and the magnetic brake member 802 may be used as the stator, and the present application is not limited thereto. In some examples, the rotor may be disposed on the side surface or other positions of the spool 200, and correspondingly, the stator may be disposed at the position opposite to the rotor to form a power generation device, and the present application is not limited thereto. In some examples, the number of permanent magnets used in the magnetic brake member 802 and the number of single coils used in the brake coil 801 may each be one or more, and the present application is not limited thereto. In some examples, the brake coil 801 may be a combination of a plurality of single coils connected in parallel, or a hybrid combination of series connection and parallel connection, but the present application is not limited thereto.

[0065] Some differences between the embodiments of the present application and the prior art lie in the improvement of the method for controlling the current in the above-mentioned brake coil 801. Specifically, it is to detect the passing speed of the guide ring and perform closed-loop control according to the tangential speed and the passing speed of the guide ring.

[0066] Note that the structure shown in the embodiments of the present application does not constitute a specific limitation on the fishing reel or its braking device. In some embodiments of the present application, the fishing reel or its braking device may include more or fewer parts than shown in the drawings, some parts may be combined, some parts may be disassembled, and different arrangements of parts are also possible.

[0067] (Embodiment 1) Embodiment 1 is a preferred embodiment of the present application. As shown in FIG. 3, the electromagnetic brake device for a fishing reel in an embodiment of the present application further includes a guide ring speed measuring mechanism 600, a rotation detection mechanism 700, and a controller 900 in addition to the above-mentioned brake mechanism 800. Each part will be described in detail as follows.

[0068] (1) Guide ring speed measuring mechanism 600

[0069] In this embodiment, the guide ring speed measurement mechanism 600 is a linear velocity sensor. As shown in FIG. 4, the linear velocity sensor is attached to be embedded in the inner wall of the guide ring 400, detects the speed information of the fishing line in the guide ring, and transmits the detected fishing line speed information to the controller 900.

[0070] Note that as the above linear velocity sensor, a known technology is adopted. For example, any of generally used optical grating sensors, magnetic grating sensors, speed measurement sensors based on imaging, etc. can be used to realize the detection of linear velocity or displacement.

[0071] By attaching the linear velocity sensor to be embedded in the inner wall of the guide ring 400, the passage of the fishing line in the guide ring 400 can be made smooth. Also, even if the guide ring speed measurement mechanism 600 is attached to the inner wall of the guide ring 400 by a method other than embedding, the speed information of the fishing line can be detected in the same way.

[0072] Specifically, in this embodiment, the guide ring speed measurement mechanism 600 further includes a projection light source 601 and a light receiving unit 602. The projection light source 601 is configured to emit light to the fishing line moving in the guide ring 400, and the light receiving unit 602 is configured to receive the reflected light signal of the fishing line. In some of these embodiments, the projection light source 601 and the light receiving unit 602 may be provided separately or combined as one body. More specifically, as shown in FIG. 5, the projection light source 601, the light receiving unit 602 and the optical element are combined, and the light beam emitted from the projection light source 601 passes through the first lens 603, is further reflected by the beam splitter 606, then passes through the third lens 605, and is irradiated onto the fishing line. The reflected light of the fishing line passes through the third lens 605, the beam splitter 606 and the second lens 604, and then reaches the light receiving unit 602. In another optical path combination form shown in FIG. 6, the light beam emitted from the projection light source 601 passes through the first lens 603 and is irradiated onto the fishing line, and the reflected light of the fishing line passes through the second lens 604 and then reaches the light receiving unit 602. These similar optical combination methods are known technologies, and the present application does not limit this.

[0073] In this embodiment, the light receiving unit 602 is a photosensor, which is configured to convert the detected reflected light signal into an electrical pulse signal by using a fishing line in which color intervals with different reflectivities and having a fixed mark length L are alternately arranged, and calculate the passing speed V of the fishing line through the guide ring.

[0074] As shown in FIG. 15, the fishing line used in this embodiment, in some embodiments, the fixed mark length L is less than 0.85 m. In some embodiments, the fixed mark length L is less than 0.3 m. In some embodiments, the fixed mark length L is less than 0.1 m. In some of these embodiments, the fixed mark length L is less than 0.05 m. It should be noted that the value of the fixed mark length L can be adaptively set according to different application scenarios. The lower the value of the fixed mark length L, the higher the detection accuracy, and the present application does not limit this.

[0075] It is known to detect displacement or speed by using the reflected light of the signal mark and its specific applications include, for example, the widely used optical grating ruler, the mouse that positions using an optical grating, etc.

[0076] (2) Rotation detection mechanism 700

[0077] In this embodiment, the rotation detection mechanism 700 includes a rotation speed sensor and a rotation direction detection device, and detects the rotation information of the spool 200, including the rotation pulse and the rotation direction. The rotation detection mechanism 700 is arranged on the fishing reel main body 100 and transmits the detected rotation information to the controller 900.

[0078] Specifically, the rotation detection mechanism 700 includes a main rotation speed sensor configured to detect the rotation speed and an auxiliary rotation speed sensor as a rotation direction detection device. Both the main rotation speed sensor and the auxiliary rotation speed sensor are reflective photoelectric rotation speed sensors, and are fixed to the fishing reel body 100 via the circuit board of the controller 900. The detection directions of the two rotation speed sensors are directed towards the left spool plate 201. Also, these two rotation speed sensors form a central angle with the rotation center of the spool 200 as the center of the circle. As shown in FIG. 7, N rotation speed reflection marks 701 are provided on the outside of the left spool plate 201 at positions corresponding to the detection directions of the reflective photoelectric rotation speed sensors. When the spool 200 rotates, the rotation speed sensor emits a light beam to detect the reflected light signal of the rotation speed reflection mark 701 and generate a rotation pulse signal. The phase difference between the rotation pulse signals generated by the auxiliary rotation speed sensor and the main rotation speed sensor respectively is used for calculating the rotation direction of the spool 200.

[0079] The number N of the rotation speed reflection marks is 3. In some embodiments, the number N of the rotation speed reflection marks may be other natural numbers greater than 0, and the present application does not limit this. In some embodiments, both the auxiliary rotation speed sensor and the main rotation speed sensor may be plural, and the present application does not limit this.

[0080] It should be noted that the detection of the rotation speed, rotation number, and rotation direction by the sensor is a known technology. In some embodiments, the reflective photoelectric rotation speed sensor may be replaced with other known elements such as other photoelectric detection devices, Hall sensors, proximity switches, contact switches, etc. It is provided at a position of the fishing reel body 100 capable of detecting the rotation information of the spool 200 to achieve the same function.

[0081] (3) Controller 900

[0082] In this embodiment, the circuit board of the controller 900 is disposed inside the left cover of the fishing reel. As shown in FIG. 3, specifically, the controller 900 includes a processor 901, a memory, an I / O interface 902, and a current control unit 903. The memory includes a RAM memory 904, a ROM memory 905, and a flash memory (FLASH ROM) 906. The controller 900 is electrically connected to the guide ring speed measuring mechanism 600 and the rotation detection mechanism 700 via the I / O interface 902, and the current control unit 903 is electrically connected to the brake coil 801.

[0083] In some embodiments, the controller 900 may be disposed at other appropriate positions within the fishing reel body 1, and the present application is not limited thereto. In some embodiments, the above-mentioned RAM memory 904, ROM memory 905, and flash memory 906 may be replaced with other known memory elements having similar functions. For example, the ROM may be replaced with a flash memory (FLASH ROM), and the DRAM may be replaced with an SRAM, and the present application is not limited thereto.

[0084] The controller 900 is provided with a guide ring passing speed calculation module 912, and the guide ring passing speed calculation module 912 calculates the guide ring passing speed V from the electrical pulse signal of the guide ring speed measuring mechanism 600 and the fixed mark length L of the fishing line used.

[0085] The controller 900 processes the rotation information from the rotation detection mechanism 700 as follows.

[0086] The rotational direction of the spool 200 is calculated from the phase difference between two rotational pulse signals respectively generated by the auxiliary rotational speed sensor and the main rotational speed sensor of the rotation detection mechanism 700. The rotational speed Vr of the spool 200 is calculated from the electrical pulse signal of the main rotational speed sensor. One of the two rotational pulse signals accumulatively counts the number Nr of fishing line winding turns of the spool 200 recorded in the flash memory (FLASH ROM) 906. Specifically, when winding the fishing line, for each electrical pulse signal, the recorded number of winding turns is increased by 1 / N rotation, that is, N r = N r + 1 / N. When releasing the fishing line, for each electrical pulse signal, the recorded number of winding turns is decreased by 1 / N rotation, that is, N r = N r - 1 / N. Here, N is the number of rotation speed reflection marks 701 in the rotation detection mechanism 700.

[0087] The controller 900 records the conversion relationship parameters corresponding to the three of the number of winding turns N r of the spool 200, the rotational speed V r , and the tangential speed V t and stores them in the flash memory (FLASH ROM) 906.

[0088] Here, the conversion relationship parameters are specifically parameter data information for calculating the corresponding tangential speed V r based on the number of winding turns N r and the rotational speed V t . According to known mathematical and physical knowledge, this conversion relationship parameter is related to the geometric dimensions of the spool 200 and the thickness of the fishing line used. Therefore, this conversion relationship parameter may be preset and stored, and may also be in an expression form such as parameter values, regression models, numerical tables, or combinations thereof, and the present application does not limit this.

[0089] As a specific example, let the original diameter of the spool 200 be "D", the thickness d of the fishing line wound on the spool 200, and the number of winding turns N rIt is converted by a fixed conversion coefficient K, that is, d = K * N r and the tangential speed V t , the number of winding turns N r , and the rotational speed V r The relationship of is defined as "Equation 1". That is, V t = π * (D + K * N r * 2) * V r where the above diameter D and coefficient K are conversion relationship parameters

[0090] The controller 900 is provided with a tangential speed calculation module 913. When the fishing line is released, the number of winding turns N of the spool 200 r , the rotational speed V r , and the tangential speed V is calculated from the conversion relationship parameters stored in the memory t . A specific example is shown below

[0091] The tangential speed V t = π * (D + K * N r * 2) * V r where

[0092] The current control unit 903 is a switching element, and the correction signal controls the on / off of the switching element by on / off switching. Here, the switching element specifically refers to an element or a combination of elements that controls the on / off of current using an input signal, for example, an element or a combination of elements such as a field effect transistor (FET), a switching triode, a thyristor, etc., and the present application is not limited thereto

[0093] Here, the correction signal is specifically a signal that controls the electromagnetic induction current of the brake coil 801 calculated by the following closed-loop control

[0094] (4) Closed-loop control

[0095] Regarding closed-loop control, as shown in FIG. 11, the controller 900 is provided with a closed-loop control calculation module 911. Using the guide ring passing speed V calculated by the guide ring passing speed calculation module 912 as the dynamic input target control value, and the tangential speed V t calculated by the tangential speed calculation module 913 as the output controlled value, this tangential speed V t is used as the feedback value to calculate a correction signal for correcting the spool rotation speed. This correction signal controls the current in the brake coil 801 via the current control unit 903, thereby controlling the braking force on the spool 200, and further correcting the rotation speed of the spool 200, so that the tangential speed V follows the guide ring passing speed V and is the same as the guide ring passing speed V t is closed-loop controlled.

[0096] As a specific example, in one simple closed-loop control mode, when the tangential speed V t is greater than the guide ring passing speed V, a correction signal is output to turn on the current control unit 903, and the brake coil 801 generates a braking force on the spool 200 to decelerate, and when the tangential speed V t is less than or equal to the guide ring passing speed V, a correction signal is output to turn off the current control unit 903, and the brake coil 801 cancels the generation of the braking force on the spool 200 to stop the deceleration. Thereby, closed-loop control is realized.

[0097] Closed-loop control is a known technology. In some embodiments, those skilled in the art may use any one or a combination of other different closed-loop control algorithms or a plurality of closed-loop control algorithms, for example, algorithms such as two-position control, proportional control, integral control, derivative control, PID control, etc. The present application does not limit this.

[0098] In this embodiment, the guide ring passing speed V and the tangential speed V tBy dynamically detecting the compatibility state with [the relevant object], automatically correcting the deviation of the spool rotation speed, and realizing closed-loop control, the stability of the brake of the fishing reel is improved. Embodiments of the present application

[0099] (Example 2) Based on the above Example 1, replacements or improvements are made to realize the following examples. Hereinafter, only the parts of replacements or improvements will be described, and the description of the same points as in Example 1 will be omitted. For the points that do not match the description of Example 1, the following description shall apply.

[0100] (1) Improvement or replacement of the guide ring speed measurement mechanism and the fishing line used

[0101] On the premise of not changing the structure of the guide ring speed measurement mechanism, in this embodiment, when fishing using a suitable fishing line, the relative guide ring passing speed can be detected. The suitable fishing line has a signal mark sequence in which color intervals with different reflectivities are alternately arranged, and the light receiving part 602 converts the detected reflected light signal into an electrical pulse signal. The signal mark sequence conforms to the geometric parameters of the spool. As the conformity relationship, the section length L of the signal mark sequence X and the corresponding winding diameter D X have a preset ratio R r such that, that is, R r = L X / D X is satisfied. That is, as the winding diameter D of the fishing line on the spool X increases or decreases, the section length L of the signal mark sequence X increases or decreases proportionally. If the number of signal marks M passing through the fishing line outlet and the spool rotation angle A within the same period T are detected, the relative guide ring passing speed of the fishing line at the fishing line outlet and the relative tangential speed at which the spool releases the fishing line can be calculated.

[0102] As a specific example, when the above spool rotation angle A is expressed in degrees (assuming one full circle is 360°), it is as follows.

[0103] The speed at which the fishing line passes through the line outlet = M * R r * D X / T.

[0104] The speed at which the spool releases the fishing line = π * D X * A / 360° / T.

[0105] Dividing the above two equations by the winding diameter D X simultaneously to obtain the relative guide ring passing speed and the relative tangential speed, that is, the relative values with the winding diameter D X as the measurement unit. Here, the relative guide ring passing speed = M * R r / T, and the relative tangential speed = π * A / 360° / T.

[0106] Therefore, it is possible to calculate the relative guide ring passing speed and the relative tangential speed without calculating the winding diameter D X and without calculating the number of winding turns. Treating the above relative guide ring passing speed as the guide ring passing speed V and the above relative tangential speed as the tangential speed V t enables closed-loop control.

[0107] As a more specific example, if R r = 2 and the original diameter D of the spool = 0.02 m, the signal mark section of the fishing line at the starting position of winding is L0 = D * R r = 0.04 m. As the thickness of the wound fishing line increases, when the winding diameter is D X , the signal mark section L X = D X * R r = 2D X . For example, when the winding diameter D X is 0.03 m, the signal mark section is L X = 2D X = 0.06 m. Thus, the signal mark section on the fishing line changes gradually, and there is a compatibility relationship between the fishing line and the spool. At any time, when the spool rotates by the same angle, the number of signal marks on the released fishing line is the same.

[0108] Of course, based on the above principle, it may also be realized by other modified alternative methods. For example, when the rotation angle A is expressed in radians (assuming that one full circle is 2π), the relative tangential speed = A / 2 / T.

[0109] In addition, this linear speed sensor may be attached to the side surface of the guide ring. As a specific example, as shown in FIG. 19, the linear speed sensor includes a projection light source 601 and a light receiving part 602. The linear speed sensor is arranged on the side surface of the guide ring 450, and is integrally connected to the guide ring through the housing of the linear speed sensor. Of course, the connection between the linear speed sensor and the guide ring is not limited to this method. For example, it may be connected through the fishing reel body, or may be connected through the fishing rod. In short, as long as the guide ring guides the fishing line to be measured and the detection direction of the linear speed sensor is directed at the fishing line passing through the line outlet, and the linear speed sensor and the fishing line to be measured satisfy the measurable distance, it is possible to detect the passing speed of the guide ring, and the present application does not limit this. Here, the measurable distance refers to the range interval of the distance between the linear speed sensor and the fishing line to be measured that is required to maintain a stable operating state. The measurable distance is determined by the specific application scenario. A person skilled in the art can determine the measurable distance based on theoretical calculations or empirical data, or can also determine the measurable distance through a limited number of experiments.

[0110] (2) Improvement of the rotation detection mechanism 700

[0111] The rotation detection mechanism 700 includes a rotation speed sensor and detects the rotation information of the spool 200, including at least only the rotation pulse. The rotation direction information is not essential.

[0112] (3) Improvement of the controller 900

[0113] The guide ring passing speed calculation module 912 of the controller 900 calculates the relative guide ring passing speed from the electrical pulse signal of the guide ring speed measurement mechanism 600 and treats it as the guide ring passing speed V.

[0114] Controller 900 processes the rotation pulse signal generated from the rotation speed sensor of the rotation detection mechanism 700 without calculating the number of fishing line winding turns N of the spool 200 and without calculating and storing the conversion relationship parameters corresponding to the three of the number of winding turns N r of the spool 200, the rotation speed V r and the tangential speed V r of the spool 200. t without accumulating and counting them.

[0115] When the controller 900 releases the fishing line, the tangential speed calculation module 913 of the controller 900 calculates the relative tangential speed from the rotation pulse and treats it as the tangential speed V t for handling.

[0116] (IV) Improvement or replacement of closed-loop control

[0117] The relative guide ring passing speed is treated as the guide ring passing speed V, and the relative tangential speed is treated as the tangential speed V t to realize closed-loop control.

[0118] According to this embodiment, the complexity of the rotation detection mechanism can be reduced, the processing process of the controller can be simplified, and the parameter setting can be reduced.

[0119] (Embodiment 3) Based on the above Embodiment 1, replacements or improvements are added to realize the following embodiments. Hereinafter, only the parts of the replacements or improvements will be described, and the description of the same points as those in Embodiment 1 will be omitted. For the points that do not match the description of Embodiment 1, the following description shall apply.

[0120] (I) Replacement of the rotation detection mechanism 700

[0121] Instead of the rotation detection mechanism 700, a speed measuring device based on imaging of the spool is used. The speed measuring device based on imaging of the spool is an imaging-based speed measuring sensor electrically connected to the controller 900, provided on the main body of the fishing reel, with the detection direction directed towards the surface fishing line of the spool, and configured to directly detect the tangential speed of the surface fishing line.

[0122] (II) Improvement or replacement of the controller 900

[0123] The controller 900 does not need to process the spool rotation speed and related information, nor does it need to cumulatively count the number of fishing line winding turns N of the spool 200. When releasing the fishing line, the tangential speed calculation module 913 of the controller 900 directly calculates the tangential speed V from the signal of the speed measuring device based on imaging of the spool. r t

[0124] According to this embodiment, the complexity of the rotation detection mechanism can be reduced, the processing process of the controller can be simplified, and the parameter setting can be reduced.

[0125] (Other embodiments) Based on the above-described Example 1 or Example 2 or Example 3, within a non-contradictory range, alternatives, conversions, deformations, or improvements are made to provide the following embodiments. As long as there is no contradiction, the features in these embodiments and the embodiments may be combined with each other, and it is possible to combine the features in a plurality of these embodiments and the embodiments to form a new embodiment. Hereinafter, only the parts of substitution, conversion, or improvement will be described, and the description of the same points as the original embodiments will be omitted. For points that do not match the description of the original embodiments, the following description shall apply.

[0126] (I) In some embodiments, the guide ring speed measuring mechanism 600 detects speed information and causes the controller 900 to process it, which is realized by any one of the following alternative methods.

[0127] For Example 1 or Example 3, as an alternative method, the guide ring speed measurement mechanism 600 is specifically an imaging-based speed measurement sensor, and further includes a projection light source 601 and a light receiving unit 602. The light receiving unit 602 is specifically an image sensor. Under the control of the controller 900, when the fishing line moves, the image sensor acquires local image information reflected by the fishing line at regular time intervals. Accordingly, the guide ring passing speed calculation module 912 processes the image information of the guide ring speed measurement mechanism 600, compares and analyzes the local images of the moving fishing line acquired at regular time intervals in time series, and calculates the guide ring passing speed V from the distance traveled by the local image within the set time interval. In this way, it is also possible to measure the speed using an ordinary fishing line.

[0128] It should be noted that detecting displacement or speed using image information is a known technology. For example, widely used laser mice and imaging-based speed measurement sensors of TRANS-TEK in the United States are all applications of this known technology.

[0129] For Example 1 or Example 3, in another alternative method, the guide ring speed measurement mechanism 600 is a magnetic sensor. Using a fishing line with magnetic signal marks of a fixed mark length L arranged alternately, the guide ring speed measurement mechanism 600 converts the detected magnetic signal into an electrical pulse signal. Correspondingly, the guide ring passing speed calculation module 912 calculates the guide ring passing speed V from the electrical pulse signal of the guide ring speed measurement mechanism 600 and the fixed mark length L of the magnetic mark fishing line used.

[0130] It should be noted that detecting displacement or speed using magnetic signal marks is a known technology. For example, widely used magnetic grid sensors and magnetic grid rulers are one of its applications.

[0131] As shown in FIG. 16, as a magnetic signal marker, specifically, a magnetic material is attached to the fishing line, a series of magnetic signals are recorded with a fixed mark length L as an interval, the magnetic poles are arranged as shown in FIG. 16, and the magnetic sensor may be a known magnetic head. In some of these embodiments, the magnetic sensor may be an element having a similar function, such as a known Hall sensor. In some embodiments, the fixed mark length L is less than 0.85 m. In some embodiments, the fixed mark length L is less than 0.3 m. In some embodiments, the fixed mark length L is less than 0.1 m. In some of these embodiments, the fixed mark length L is less than 0.05 m. It should be noted that the value of the fixed mark length L can be adaptively set according to different application scenarios. The lower the value of the fixed mark length L, the higher the detection accuracy, and the present application does not limit this.

[0132] Known techniques may be used for the manufacturing method of attaching a magnetic material to the fishing line. For example, a magnetic tape for recording data, sound, or video information is made by attaching a magnetic material to a flexible base material, and such a method can also be used for attaching a magnetic material to the fishing line. Also, for example, a magnetic material powder and a liquid adhesive can be mixed and applied or impregnated to the fishing line or the raw yarn for manufacturing the fishing line to attach the magnetic material to the fishing line.

[0133] Regarding Example 2, in yet another alternative method, the guiding speed measurement mechanism 600 is a magnetic sensor, the suitable fishing line has a signal mark sequence in which magnetic signal marks of a fixed mark length L are alternately arranged, and the guiding speed measurement mechanism 600 converts the detected magnetic signal into an electrical pulse signal. The signal mark sequence conforms to the geometric parameters of the spool, and as the conformity relationship, the section length L of the signal mark sequence X and the corresponding winding diameter D X the ratio to satisfies a preset value R r i.e., R r =L X / D XAs described above, the winding diameter D of the fishing line on the spool X Accordingly, the section length L of the signal mark sequence X increases or decreases proportionally. Accordingly, the guide ring passing speed calculation module 912 calculates the relative guide ring passing speed from the electrical pulse signal of the guide ring speed measurement mechanism 600 and sets it as the guide ring passing speed V.

[0134] (2) In some embodiments, controlling the electromagnetic induction current of the brake coil 801 in the controller may be replaced by any one of the following methods.

[0135] In one alternative method, the current control unit 903 is specifically a switching element that switches the on / off of the electromagnetic induction current in the brake coil 801, and the correction signal controls the ratio of the on / off time of the switching element by adjusting the duty ratio of the PWM (pulse width modulation) signal.

[0136] In another alternative method, the current control unit 903 is a current intensity adjustment element, and the correction signal adjusts the current intensity in the current intensity adjustment element by changing the intensity.

[0137] Here, the current intensity adjustment element specifically refers to an element or a combination of elements that controls the change in current intensity by an input signal, for example, an element such as a field effect transistor operating in a variable resistance region, a triode, or a combination thereof, or a combination of circuits that realizes the function of a digital potentiometer. The present application is not limited thereto.

[0138] (3) In some embodiments, the specific method of closed-loop control may be replaced by any one of the following methods.

[0139] In one alternative method, as shown in FIG. 12, the difference value ΔV = V between the tangential speed V t and the guide ring passing speed V tCalculate -V, and the controller 900 is provided with a ΔV calculation module 914. The ΔV calculation module 914 includes a guide ring passing speed calculation module 912 and a tangential speed calculation module 913, and is pre-given The allowable speed difference threshold value Vk is used as the input target control value, and the differential value ΔV is used as the output controlled value and the feedback value.

[0140] Regarding the alternatives of Example 1 or Example 3, in some embodiments, the range of the value of the allowable speed difference threshold value Vk is -0.1 to 1.0 m / s. In some other embodiments, the range of the value of the allowable speed difference threshold value Vk is -0.05 to 0.5 m / s. In some other embodiments, the range of the value of the allowable speed difference threshold value Vk is 0 to 0.2 m / s.

[0141] Regarding the alternative of Example 2, in some embodiments, the allowable speed difference threshold value Vk may also be appropriately converted or adjusted. For example, conversion of relative values is performed using the original diameter D of the spool as the measurement unit. For example, as the allowable speed difference threshold value Vk, a value within the range of -5 to 50 / second may be selected. Note that the value of the allowable speed difference threshold value Vk can be set adaptively according to different application scenarios, and the present application does not limit this.

[0142] In another alternative method, as shown in FIG. 13, the controller 900 is provided with a floating line length Lf calculation module 915. The Lf calculation module 915 includes a guide ring passing speed calculation module 912 and a tangential speed calculation module 913, calculates the integral of the differential value ΔV regarding the fishing line release time, and obtains the floating line length Lf staying in the spool when the fishing line is released. The preset allowable floating line length threshold value Lk is used as the input target control value, the floating line length Lf is used as the output controlled value, and this floating line length Lf is used as the feedback value.

[0143] Here, the floating line length Lf means the length of the fishing line that has already been released from the spool 200 but has not been drawn out from the guide ring 400 and stays in the spool when the fishing line is released.

[0144] Regarding the alternatives of Example 1 or Example 3, in some embodiments, the range of the value of the allowable floating yarn length threshold Lk is 0 to 0.8 m. In some other embodiments, the range of the value of the allowable floating yarn length threshold Lk is 0 to 0.5 m. In some other embodiments, the range of the value of the allowable floating yarn length threshold Lk is 0.005 to 0.2 m.

[0145] Regarding the alternative of Example 2, in some embodiments, the above-mentioned allowable floating yarn length threshold Lk may also be appropriately converted or adjusted. For example, relative value conversion is performed using the original diameter D of the spool as the measurement unit. For example, a value within the range of 0 to 40 may be selected as the allowable floating yarn length threshold Lk. It should be noted that the value of the allowable floating yarn length threshold Lk can be set adaptively according to different application scenarios, and the present application does not limit this.

[0146] By maintaining an appropriate floating yarn length through closed-loop control, it can be ensured that the fishing line is in a moderately loose state without entanglement, and at the same time, the kinetic energy due to the inertia of the lure is avoided from being consumed by the braking system, and the flying distance of the lure can be increased.

[0147] As some other alternative implementation methods, for example, the integration value S of the guide ring passing speed V for the period T p is calculated, and the integration value S p of the tangential speed V for the period T t is calculated. The difference value between these two values is calculated as the speed integration difference value ΔS = S t - S. The pre-set integration difference control value Sk is used as the input target control value, and the speed integration difference value ΔS is used as the output controlled value and feedback value to perform closed-loop control. The above period T t ≥ the sampling period of the closed-loop control, and T p ≤ the fishing line release time. Also, T p may be a fixed value or a dynamic value. Specifically, a value adapted through a finite number of experiments may be determined by those skilled in the art, and the present application does not limit this. p

[0148] These equivalent conversion methods described above can be easily conceived by those skilled in the art, and as long as closed-loop control is realized by any of these methods described above, they are all within the spirit and scope of protection required by this application.

[0149] (4) Regarding Example 1, in some embodiments, the rotational direction detection may further be realized by any one of the following rotational direction detection devices.

[0150] As an alternative method, the rotational direction detection device is an auxiliary rotational speed sensor provided on the main body of the fishing reel, and the controller calculates the rotational direction of the spool from the phase difference between the rotational pulse signals respectively generated by the auxiliary rotational speed sensor and the main rotational speed sensor.

[0151] As another alternative method, the rotational direction detection device is a state detection element provided on the main body of the fishing reel. The state detection element uses a switching element such as a known Hall switch, contact switch, proximity switch, etc. to detect the change in the position or movement of the mechanical parts of the fishing reel, and can determine the rotational direction of the spool from the generated detection signal. Detecting the position or movement of mechanical parts and converting them into electrical signals is a known technology. For example, a magnet is provided at the bottom of the button of the clutch switch 300, and a Hall switch is provided on the main body 100 of the fishing reel so as to face the position of the magnet to detect the operating state of winding and releasing the fishing line.

[0152] As another alternative method, the rotation direction detection device is realized by a threshold comparison unit. The threshold comparison unit reads any one absolute value or any one change rate among the rotation speed, tangential speed, or guide ring passing speed of the spool, and determines whether the spool is in the fishing line releasing state based on whether the read parameter is detected to be greater than its respective preset threshold. At the start of casting, the spool 200 rotates at a high speed, and at the time of winding, the spool 200 rotates at a low speed. Therefore, when the absolute value of the read speed value is higher than its corresponding preset threshold, it is determined that casting and the fishing line releasing state have been entered. Then, when it is detected that the continuous fishing line releasing process has stopped, the casting and fishing line releasing state ends and switches to the winding state. Or, as another alternative, at the start of casting, the spool rotation speed V r or the tangential speed V t or the guide ring passing speed V has an instantaneous high change rate. By detecting whether the change rate is higher than its corresponding preset change rate threshold, it is also possible to determine whether casting and the fishing line releasing state have been entered.

[0153] The range of values that the threshold of the above rotation speed can take is 5 revolutions per second to 500 revolutions per second in some embodiments, and 50 revolutions per second to 100 revolutions per second in some other embodiments. The above tangential speed V t or the threshold of the guide ring passing speed V can take a range of values that is 0.5 m / s to 50 m / s in some embodiments, and 5 m / s to 10 m / s in some other embodiments. The preset threshold of the above parameter or the preset threshold of the above parameter change rate may be set according to different application scenarios, or values that are adapted through a finite number of experiments by those skilled in the art may be determined. The present application does not limit this.

[0154] The electric circuit of the threshold comparison unit may be electrically connected to the controller 900 and provided on the fishing reel main body 100. As one possible method, the electric circuit of this threshold comparison unit may be integrated with the electric circuit of the controller 900, and the present application does not limit this. By detecting the rotation direction using the threshold comparison method, the complexity of the system can be reduced, the reliability can be improved, and the manufacturing cost can be lowered.

[0155] Furthermore, as another possible alternative method, the rotation direction detection device is realized by an acceleration sensor provided on the fishing reel main body. The acceleration sensor is electrically connected to the controller, and based on whether it detects that the acceleration is greater than a preset acceleration threshold, it determines whether the spool is in the fishing line release state. When the fishing rod and the fishing reel are swung at the start of casting, and since the acceleration sensor is electrically connected to the controller 900, when it detects that the acceleration is greater than the preset acceleration threshold, it is determined that casting and the fishing line release state have entered. Then, when it detects that the continuous fishing line release process has stopped, it ends the casting and fishing line release state and switches to the winding state. The preset acceleration threshold may be set according to specific application scenarios, or an appropriate value may be determined by those skilled in the art through a finite number of experiments, and the present application does not limit this.

[0156] Furthermore, as another possible alternative method, when the guide ring speed measurement mechanism 600 is equipped with a speed measurement sensor based on imaging, the rotation direction detection device may be realized by this speed measurement sensor based on imaging. From the moving direction of the fishing line detected by this speed measurement sensor based on imaging, the rotation direction of the spool 200 can be determined. By also using this speed measurement sensor based on imaging as the rotation direction detection device, the reliability can be improved.

[0157] As yet another possible alternative, when the main rotational speed sensor used also has a function of detecting the rotational direction, in order to improve the reliability, this main rotational speed sensor can also be used as a rotational direction detection device. The rotational speed sensor having the above-mentioned rotational direction detection function is specifically a speed measurement sensor based on imaging, a resolver, etc., and is in the form disclosed in the Chinese patent document with the application number CN201821109629.X. On the measured rotating object, at least two detection marks of different sizes are arranged at intervals, and the detection sensor is arranged to contact or not contact the measured rotating object, and the rotational direction is determined from the order of the detected signal widths.

[0158] In short, the rotational direction detection device may be realized by detecting the rotational direction of the spool using any known method, or may be realized by detecting the mechanical state of the fishing line release or winding of the fishing reel using any known method, or may be realized by detecting the acceleration information during casting or winding of the fishing reel using any known method. Furthermore, it may also be realized by detecting the speed information of the fishing line or the rotational speed value of the spool using any known method.

[0159] (5) Regarding Example 1, in some embodiments, the controller 900 processes and stores the conversion relationship parameters as follows.

[0160] The conversion relationship parameters corresponding to each of a plurality of types of fishing line thickness specifications are pre-stored in the memory. On the fishing reel body 100, a selection button electrically connected to the controller 900 is further provided. When fishing, the appropriate conversion relationship parameters are selected and set via the selection button. Alternatively, the controller 900 is further provided with a wireless communication module wirelessly communicatively connected to an external setting terminal. When fishing, the appropriate conversion relationship parameters are selected and set via the external setting terminal.

[0161] Here, the selection button specifically refers to a knob with a scale indicator dial. By turning it to different positions, different circuit parameters can be set, or different circuit connection methods can be set. Furthermore, by analogy, it refers to devices that can achieve the same functions as above by methods such as pressing a button, such as the tuning knob or button of a radio, or the stage selection knob or button of a microwave oven or washing machine. Note that the wireless communication may be in modes such as WIFI, Bluetooth (registered trademark), or NFC. The external setting terminal may be a smartphone app, a wireless remote control, etc., and the present application is not limited thereto.

[0162] Pre-storing common fishing line parameters and selecting the appropriate ones during use can further reduce the complexity of parameter setting.

[0163] (6) Regarding Example 1, in some embodiments, the controller 900 automatically calculates and stores the conversion relationship parameters in any one of the following methods.

[0164] As one processing method, when the inner side of the side plate of the spool 200 is planar, when the spool 200 winds the fishing line the tangential speed V t is equal to the guide ring passing speed V. Therefore, a plurality of sample data including the guide ring passing speed V, the winding turn number N r , and the rotation speed V r calculated at different times are taken to form a data sample group. Substituting any two data samples in this data sample group into Equation 1 of the above example, that is, V t =π*(D + K*N r *2)*V r can obtain a set of binary linear simultaneous equations. From at least one set of simultaneous equations, at least one pair of values of the diameter D and the coefficient K are obtained, and further statistically processed to obtain the average values of the diameter D and the coefficient K, which are stored in the memory. By collecting and calculating multiple data samples and statistically processing the results to obtain the average value, the detection error can be reduced.

[0165] In the above embodiments, since the diameter D is solved as an unknown parameter, when a certain amount of fishing line remains on the spool 200, it can be set as the starting position for counting the number of winding turns. When a spool without wound fishing line is used as the starting position for counting the number of winding turns, since the bare diameter D of the spool is a definite value, in some embodiments, by replacing the diameter D in the above embodiments with this bare diameter as a constant, a linear equation can be obtained. Therefore, the coefficient K can be obtained by creating only one equation with at least one data sample.

[0166] When the inner side of the side plate of the spool 200 has a non-planar geometric shape such as an inclined shape or an arc shape, equivalent functional effects can be obtained by modifying the corresponding calculation formula according to known geometric knowledge. For example, in an embodiment where the inner side of the side plate of the spool 200 has a conical surface or a rotational surface shape, the surface width Wx of the fishing line winding body with an arbitrary thickness is the distance between the left and right side plates at that position, and it and the fishing line winding body diameter x have a known functional relationship

Number

Number

[0167] In another processing method, as an alternative to the method of automatically calculating and storing the above-mentioned conversion relationship parameters, when winding the fishing line, with the tangential speed V t as the dependent variable, the winding turn number N r and the rotational speed V r as independent variables, a regression equation is created, and a plurality of sample data including the guide ring passing speed V, the winding turn number N r , and the rotational speed V r measured at different times are taken to form a data sample group, regression analysis is performed, and the regression model and parameters are stored in a readable and writable memory as conversion relationship parameters. When releasing the fishing line, the tangential speed calculation module 913 inputs the winding turn number N r , and the rotational speed V r into the regression model to calculate the tangential speed V t .

[0168] As another processing method, as an alternative to the method of automatically calculating and storing the above-mentioned conversion relationship parameters, when winding the fishing line, specifically, as in r = V t / V r , the conversion ratio value r between the tangential speed V r corresponding to different winding turn numbers N t and the rotational speed V r is calculated. As shown in FIG. 14, a series of winding turn numbers N r and the corresponding conversion ratio values r are created as a conversion relationship table and stored in the memory. When releasing the fishing line, the tangential speed calculation module 913 uses the winding turn number N rBased on this, query the value r of the ratio corresponding to the above conversion relationship table, and further the rotational speed V r to obtain the tangential speed V t = r * V r for calculation.

[0169] By automatically calculating and storing the conversion relationship parameters, the effect of accurately controlling the brake can be realized without presetting the operation.

[0170] (VII) In addition to the above embodiment (VI), in some embodiments, the controller 900 determines whether to execute the processing step of calculating and storing the conversion relationship parameters when the spool winds up the fishing line by any one of the following methods.

[0171] As one method, every time the spool winds up the fishing line, the above processing step is automatically executed.

[0172] In another determination method, the fishing reel body is provided with a setting button electrically connected to the controller. Through the setting button, it is controlled whether to execute the above processing step, or the controller 900 is further provided with a wireless communication module wirelessly communication-connected to an external operation terminal. Through the external operation terminal, it is controlled whether to execute the above processing step. When it is necessary to replace a new fishing line or update the conversion relationship parameters, the operator sends a signal to re-execute the above processing step to the controller in the set manner. The external operation terminal may be a smartphone app, a wireless remote control, etc., and the present application does not limit this.

[0173] In another determination method, when it is detected that the spool fishing line winding turn count value is less than the turn count threshold or the conversion relationship parameter is not stored, the above processing steps are executed. When replacing a new fishing line or when it is necessary to rewind the fishing line, the winding turn count value is less than the turn count threshold. In this case, the above processing steps are executed. In some embodiments, the value range of the turn count threshold is 0 to 1200 turns. In some embodiments, the value range of the turn count threshold is 0 to 300 turns. In some embodiments, the value range of the turn count threshold is 0 to 50 turns. In some embodiments, the value range of the turn count threshold is 0 to 10 turns. Note that the value of this turn count threshold can be adaptively set according to different application scenarios, and the present application does not limit this.

[0174] (8) In some embodiments, the guide ring speed measurement mechanism 600 is realized by the following method.

[0175] When the linear velocity sensor has a photoelectric sensor or an image sensor, a light leakage notch 401 is provided between both ends or at the end of the guide ring 400, and the detection direction of the linear velocity sensor faces the light leakage notch 401. The light leakage notch 401 may be an open hole penetrating the wall of the guide ring, or a non-penetrating recess on the inner wall of the guide ring. FIG. 17 is a cross-sectional schematic diagram of an open hole provided between both ends of the guide ring, and FIG. 18 is a cross-sectional schematic diagram of a recess provided at the end of the guide ring. The light leakage notch 401 is provided to weaken the light reflection at the background part of the detected fishing line, reduce the interference of the reflected light from the inner wall of the guide ring 400 on the acquisition of the fishing line signal by the light receiving part 602, and improve the stability of the acquisition of the fishing line signal by the light receiving part 602. Based on this principle, those skilled in the art can realize light leakage notches with various different positions, shapes, or structural forms.

[0176] When the linear velocity sensor is realized by a magnetic sensor, it is a magnetic head 610 protruding from the inner wall of the guide ring 400. A positioning support portion 410 is provided in the guide ring. The positioning support portion 410 keeps the gap between the fishing line and the magnetic head 610 in the guide ring at 0 or maintains a stable operating gap. In some embodiments, the specific selection range of the operating gap value is 0 to 2 mm. The value of the operating gap value can be adaptively set according to different application scenarios. Those skilled in the art can also determine a suitable value through a finite number of experiments, and the present application does not limit this. At least one positioning support portion 410 is provided and may be realized in various forms. For example, it may be formed by a convex portion on the inner wall of the guide ring 400, or may be formed by fixing a support body inside the guide ring 400 that can block the fishing line away from the magnetic head 610. The present application does not limit this. A specific positioning support portion is shown in FIG. 19. The positioning support portion 410 cooperates with the magnetic head 610 protruding from the inner wall of the guide ring 400 to keep the gap between the fishing line and the magnetic head 610 at 0 or maintain a stable operating gap, thereby improving the stability of the magnetic signal reading by the magnetic head 610. Based on this principle, those skilled in the art can realize positioning support portions with various different positions, shapes, or structural forms.

[0177] (IX) Regarding Example 1 or Example 2, in some embodiments, the main rotational speed sensor in the rotation detection mechanism may be realized by a photoelectric sensor, a Hall sensor, a speed measurement sensor based on imaging, an electromagnetic sensor, or an inductive sensor. Here, the electromagnetic sensor specifically means a sensor that acquires a signal according to the induced electromotive force in the detection coil, and the inductive sensor specifically means a sensor that acquires a signal according to the change in inductance or inductive reactance in the detection coil.

[0178] When the main rotation speed sensor in the rotation detection mechanism is an electromagnetic sensor or an inductive sensor, at least one single coil in the brake coil 801 may also be used as a speed measurement coil, and the controller 900 is electrically connected to the speed measurement coil. From the electrical signal containing the rotor position information in the speed measurement coil, the rotor position signal of the spool is calculated, and the rotation pulse signal is extracted from this rotor position signal. Specifically, it is realized as follows.

[0179] When the main rotation speed sensor is an electromagnetic sensor, since the magnetic flux in the speed measurement coil changes when the rotor is in different rotation positions, an induced electromotive force is generated, and the rotor position signal of the spool is calculated from the signal of the induced electromotive force generated in the speed measurement coil.

[0180] When the main rotation speed sensor is an inductive sensor, due to the salient pole effect, the inductance of the speed measurement coil changes when the rotor is in different rotation positions. The controller 900 injects a high-frequency voltage signal into the speed measurement coil, and the high-frequency current in the speed measurement coil responds to the change in inductance, and the high-frequency current response due to the salient pole is detected to decouple the rotor position signal. In some embodiments, the high-frequency voltage may be selected from the range of 50 mV to 2000 mV, and the frequency of the high-frequency voltage may be selected from the range of 100 Hz to 50 KHz. It should be noted that the above voltage and frequency parameters may be selected as appropriate values according to different application scenarios, or appropriate values may be selected by those skilled in the art through a limited number of experiments, and the present application does not limit this.

[0181] By adopting the detection method of the above electromagnetic sensor or inductive sensor and using some or all of the single coils of the brake coil as a rotation speed sensor, the complexity of the system can be reduced, the reliability can be improved, and the manufacturing cost can be lowered.

[0182] Detecting the position signal of the motor rotor by detecting the induced electromotive force or inductance and impedance of the motor coil is a conventionally known detection technique. For example, a speed measurement generator, a resolver and a bra It is widely applied in the detection of the rotor position of a reluctance motor, and specifically, methods such as the back electromotive force detection method or the high frequency injection method can be mentioned. For those skilled in the art, detecting the rotor position signal of the motor based on the above principle and extracting information such as rotation pulses and rotational speed are conventional techniques that are well known.

[0183] In some embodiments, when the auxiliary rotational speed sensor is used as a rotation direction detection device, the auxiliary rotational speed sensor may be implemented by a photoelectric sensor, a hall sensor, an electromagnetic sensor, or an inductive sensor.

[0184] (X) In some embodiments, the guide ring speed measurement mechanism 600 may be implemented by the following line speed measurement device.

[0185] As shown in FIG. 19, according to the line speed measurement device according to an embodiment of the present application, the linear speed sensor includes a projection light source 601 and a light receiving unit 602, and guide rings 450 are respectively provided on both sides of its detection window. The linear speed sensor and the guide ring are fixedly assembled by a connecting device, the line to be measured passes through the guide ring and is guided by the guide ring, and a measurable distance is maintained between the line to be measured and the linear speed sensor. The line to be measured is a fishing line, and the line speed measurement device corresponds to the guide ring speed measurement mechanism 600.

[0186] Here, "fixedly assembled" specifically refers to a connection method of integrally fixing and connecting by one or more methods such as screw connection, snap fit connection, rivet connection, hoop connection, bundling connection, welding, adhesion, or fitting connection. The connected parts cannot move relative to each other and include detachable connections and / or non-detachable connections. Also included are manufacturing methods of integrally forming, such as casting a plurality of parts integrally, injection molding integrally, or press molding integrally. It further includes screw transmission connection, and in the speed measurement operating state, the nut and the screw maintain a relatively fixed positional relationship.

[0187] Here, the "connection device" specifically refers to a combination of one or more parts that mounts a plurality of fixedly assembled functional components and maintains a relatively fixed positional relationship between the assembled functional components in the speed measurement operation state.

[0188] Here, the "measurable distance" refers to the range interval of the distance between the linear velocity sensor and the thread to be measured, which is necessary to maintain a stable operation state. The measurable distance is determined by specific application scenarios. A person skilled in the art can determine the measurable distance based on theoretical calculations or empirical data, or can also determine the measurable distance through a finite number of experiments.

[0189] In this embodiment, the guide ring may be directly attached to the housing of the linear velocity sensor, and the housing of the linear velocity sensor may be used as the connection device to fixedly connect the linear velocity sensor and the guide ring integrally through the housing. In some embodiments, the linear velocity sensor may further include a light transmissive sealing member at the detection window to protect the detection element.

[0190] Also, as shown in FIG. 20, one side guide ring may be fixedly assembled to the fishing rod, and after the linear velocity sensor is fixed integrally with the other side guide ring, it may be fixedly assembled to the fishing reel. Alternatively, the linear velocity sensor and the other side guide ring may be fixedly assembled to the fishing reel body respectively, and the fishing rod and the fishing reel body may be used as the connection device. In addition, the linear velocity sensor and the guide ring may be fixedly attached to the fishing rod respectively, and the fishing rod may be used as the connection device.

[0191] In short, as long as the linear velocity sensor and the guide ring maintain a relatively fixed positional relationship in the speed measurement operation state, the guide rings on both sides of the detection window of the linear velocity sensor guide the line to be measured, and a measurable distance is maintained between the line to be measured and the linear velocity sensor, the function of the line speed measurement device can be realized. As long as the above requirements are met, the linear velocity sensor and the guide ring can be flexibly combined and configured by the connection device, and all of these are achievable for a person skilled in the art.

[0192] (Processing flowchart of the controller 900) As shown in FIG. 9, the controller 900 according to some embodiments of the present application processes according to the following flow.

[0193] First, at the start of operation, the spool 200 is rotated, step S1a is executed, and the guide ring passing speed V is calculated based on the speed information of the guide ring speed measuring mechanism 600. At the same time, step S1b is executed, and the rotation speed Vr of the spool 200 is calculated from the electrical pulse signal of the rotation detection mechanism 700. At the same time, step S1c is executed to detect the rotation direction of the spool 200.

[0194] When the parallel execution of step S1a, step S1b, and step S1c is completed, it proceeds to step S2 to determine the rotation direction of the spool 200.

[0195] If the rotation direction of the spool 200 is the winding direction, it proceeds to step S3, and the winding turn number N r is accumulated in the memory. Then, it proceeds to step S4, and from the winding turn number N r , the rotation speed V r and the guide ring passing speed V, conversion relationship parameters are obtained. Further, it proceeds to step S5, and the above conversion relationship parameters are stored in the memory.

[0196] If it is determined in step S2 that the rotation direction of the spool 200 is the fishing line release direction, it proceeds to step S6, and the winding turn number N r is subtracted in the memory.

[0197] Next, it proceeds to step S7, and from the winding turn number N r , the rotation speed V r and the corresponding conversion relationship parameters, the tangential speed V t is calculated.

[0198] Next, it proceeds to step S8, and the tangential speed V t is compared with the guide ring passing speed V to calculate a correction signal.

[0199] Next, proceed to step S9, and control the current in the brake coil 801 based on the correction signal to achieve control of the braking force.

[0200] When step S5 or step S9 is completed, proceed to step S10 to determine whether the rotation of the spool 200 has stopped.

[0201] If the rotation of the spool 200 has not stopped, proceed again to parallel steps S1a, S1b, and S1c to start the next control loop. Conversely, if the rotation of the spool 200 has already stopped, end.

[0202] The processing flowcharts of some other embodiments are shown.

[0203] As shown in FIG. 10, in addition to the above flowchart, between step S3 and step S4, add a step S3a to determine whether to calculate the conversion relationship parameter.

[0204] If it is necessary to calculate the conversion relationship parameter, proceed to step S4.

[0205] If the conversion relationship parameter is not calculated, proceed to step S10.

[0206] In some other embodiments, when winding the fishing line, step S1a may be omitted. That is, in order to reduce the operating load of the processor and reduce energy consumption, it is not necessary to calculate the passing speed V of the guide ring when winding the fishing line. Other explanations

[0207] The steps and / or operations in the flowcharts and the accompanying drawings described in this specification are all for illustrative purposes. Except for the cases exemplified above, various changes can be made to these steps and / or operations without departing from the spirit of this application. For example, the steps may be executed in a different order, steps may be added, deleted, or changed, and the content executed within a block may be changed.

[0208] This application is not limited to the exact structure already described above and shown in the accompanying drawings, and it is clear that the embodiments described above are only some of the embodiments of this application, not all. Conversely, the embodiments of this application include all modifications, corrections, substitutions, variations, and equivalents within the spirit and scope of the appended claims. The related parameters and variables are only examples for explaining the inventive principle of this application. Any person skilled in the art can, based on the known knowledge of mathematics and physics, equally convert them into other forms of representation of parameters and variables, so as to achieve the same function without departing from the scope of this application.

[0209] All explanations regarding the left, right, front, and rear directions in the embodiments of this application are all exemplified by a fishing reel with a handle rotated on the right side from the operator's perspective. For a fishing reel with a handle rotated on the left side, the same function can be achieved by simply swapping "left" and "right" in the description of the embodiments.

[0210] It should be understood that the functional modules, components, steps, or schematic blocks disclosed in the embodiments of this application may be implemented by hardware, software, firmware, or a combination thereof, and do not necessarily refer to specific hardware or software components that must be physically divided individually. Each functional unit may be integrated into one processing module, each unit may exist physically individually, or two or more units may be integrated into one module.

[0211] In the embodiments of the present application, one or more components or steps can be realized by software or firmware stored in a memory and executed by an appropriate instruction execution system. For example, in one embodiment, it is realized by hardware, but in another embodiment, it can be realized by using any one or a combination thereof of techniques known in the art, such as a discrete logic circuit having a logic gate circuit configured to realize a logical function for a data signal, an application-specific integrated circuit having an appropriate combinational logic gate circuit, a general-purpose processor (CPU), a programmable gate array (PGA), a field programmable gate array (FPGA), etc., by executing a program in a memory.

[0212] In addition, in the description of the embodiments of the present application, the light source that emits light or performs photoelectric conversion may be a laser light or a normal light source, and may be visible light, infrared light, or ultraviolet light, and the present application is not limited thereto.

Explanation of Reference Numerals

[0213] 100 Fishing reel body 200 Spool 300 Clutch switch 400 Guide ring 500 Handle 600 Guide ring speed measurement mechanism 700 Rotation detection mechanism 800 Brake mechanism 900 Controller 201 Left side plate of spool 202 Spool shaft 401 Light leakage notch 410 Positioning support portion 450 Guide ring 601 Projection light source 602 Light receiving portion 603 First lens 604 Second lens 605 Third lens 606 Beam splitter 701 Rotation speed reflection mark 801 Brake coil 802 Magnetic brake member 803 Connection member 901 Processor 902 I / O interface 903 Current control unit 904 RAM memory 905 ROM memory 906 Flash memory (FLASH ROM) 911 Closed-loop control calculation module 912 Guide ring passing speed calculation module 913 Tangential speed calculation module 914 ΔV calculation module 915 Lf calculation module 1000 Fishing line

Claims

1. A fishing reel electromagnetic brake device, wherein the fishing reel equipped with the electromagnetic brake device includes a guide ring and a spool that rotates to wind or release fishing line. The fishing reel electromagnetic brake device includes a brake mechanism, and the brake mechanism includes a brake coil and a magnetic brake member arranged opposite to each other. One of both the magnetic brake member and the brake coil rotates integrally with the spool to form a rotor, and the other is arranged on the main body of the fishing reel to form a stator. When releasing the fishing line, the magnetic brake member and the brake coil rotate relative to each other, interact with each other to generate electromagnetic induction, and brake the spool. The fishing reel electromagnetic brake device further includes a linear velocity sensor provided on the inner wall of the guide ring, and a guide ring speed measurement mechanism configured to detect the speed information of the fishing line passing through the guide ring. The fishing reel electromagnetic brake device further includes a rotation detection mechanism provided on the main body of the fishing reel, including a main rotation speed sensor and a rotation direction detection device, and configured to detect the rotation information of the spool, including rotation pulses and rotation direction. The fishing reel electromagnetic brake device further includes a controller provided on the main body of the fishing reel, including a processor, a memory, a current control unit, and an I / O interface, and electrically connected to the guide ring speed measurement mechanism and the rotation detection mechanism through the I / O interface. The current control unit is electrically connected to the brake coil, and the memory records and stores the conversion relationship parameters among the winding turn number, rotation speed, and tangential speed of the spool. When releasing the fishing line, the controller calculates the passing speed of the guide ring from the speed information, calculates the rotation direction, rotation speed, and the count value of the winding turn number of the spool from the rotation information, stores the count value of the winding turn number in the memory. When the rotation direction of the spool is the fishing line release direction, the controller calculates the tangential speed from the winding turn number, rotation speed, and the conversion relationship parameters of the spool, calculates a correction signal for correcting the rotation speed of the spool from the tangential speed and the current passing speed of the guide ring, and controls the electromagnetic induction current in the brake coil through the current control unit according to the correction signal, thereby controlling the braking force of the spool and realizing closed-loop control.A fishing reel electromagnetic brake device characterized by the above.

2. The guide line speed measuring mechanism detects the speed information and causes the controller to process it. As a realization method, the guide line speed measuring mechanism further includes a projection light source and a photoelectric sensor. The fishing line used has color sections with different reflectivities and a fixed mark length arranged alternately. The projection light source irradiates the fishing line, and the photoelectric sensor converts the detected reflected light signal into an electrical pulse signal, and uses the electrical pulse signal and the fixed mark length for calculating the passing speed of the guide line. Or the guide line speed measuring mechanism further includes a projection light source and an image sensor. The projection light source irradiates the fishing line, and the image sensor acquires information on a local image of the moving fishing line at regular time intervals. The controller compares, analyzes, and processes the local images in time series, and uses the distance that the local image has moved at the regular time intervals for calculating the passing speed of the guide line. Or the guide line speed measuring mechanism is a magnetic sensor. The fishing line used has magnetic marks with a fixed mark length arranged alternately. The magnetic sensor converts the detected magnetic signal into an electrical pulse signal, and uses the electrical pulse signal and the fixed mark length for calculating the passing speed of the guide line. The electromagnetic brake device for a fishing reel according to claim 1, characterized by the above.

3. The controller realizes control of the electromagnetic induction current in the brake coil by any one of the following: when the current control unit is a switching element, the correction signal controls the on / off of the switching element by on / off switching; or when the current control unit is a switching element, the correction signal controls the ratio of the on / off time of the switching element by adjusting the duty ratio of the PWM signal; or when the current control unit is a current intensity adjustment element, the correction signal adjusts the current intensity in the current intensity adjustment element by changing the intensity. The electromagnetic brake device for a fishing reel according to claim 1 or 2, characterized by the above.

4. The closed-loop control is realized by any one of the following: taking the passing speed of the guide ring as the input target control value, and the tangential speed as the output controlled value and the feedback value; or taking the set allowable speed difference threshold value as the input target control value, and the difference value between the tangential speed and the passing speed of the guide ring as the output controlled value and the feedback value; or taking the set allowable floating line length threshold value as the input target control value, and the floating line length as the output controlled value and the feedback value; or taking the set integral difference control value as the input target control value, and the speed integral difference value as the output controlled value and the feedback value. The electromagnetic brake device for a fishing reel according to any one of claims 1 to 3, characterized in that it is realized by any one of the above.

5. The main rotation speed sensor is a photoelectric sensor, a Hall sensor, a speed measurement sensor based on imaging, an electromagnetic sensor, or an inductive sensor. The electromagnetic sensor or the inductive sensor is realized by using at least one single coil in the brake coil as a speed measurement coil. The electromagnetic brake device for a fishing reel according to any one of claims 1 to 4, characterized in that it is realized by the above.

6. A linear velocity sensor provided on the inner wall of the guide ring, a speed measurement mechanism configured to detect the speed information of the fishing line passing through the guide ring. A light leakage notch is provided on the inner wall of the guide ring, and the detection direction of the linear velocity sensor faces the light leakage notch. As a realization method, the speed measurement mechanism further includes a projection light source and a photoelectric sensor. The fishing line used has color sections with different reflectivities and a fixed mark length arranged alternately. The projection light source irradiates the fishing line, and the photoelectric sensor converts the detected reflected light signal into an electrical pulse signal, and uses the electrical pulse signal and the fixed mark length for calculating the passing speed of the guide ring; or the speed measurement mechanism further includes a projection light source and an image sensor. The projection light source irradiates the fishing line, and the image sensor acquires information on the local image of the moving fishing line at regular time intervals, compares and analyzes the local images in time series, and uses the distance that the local image has moved at the regular time intervals for calculating the passing speed of the guide ring. A speed measurement mechanism characterized by the above.

7. A fishing reel electromagnetic brake device used for a fishing reel having a guide ring and a spool, the fishing reel electromagnetic brake device comprising a brake coil and a magnetic brake member that rotates integrally with the spool, the brake coil being fixed to the fishing reel body, and when releasing fishing line, the brake coil brakes the spool by electromagnetic induction. The fishing reel electromagnetic brake device further comprises a guide ring speed measurement mechanism which is a linear velocity sensor provided at the fishing line outlet of the fishing reel and is configured to detect speed information of the fishing line passing through the guide ring. The fishing line has a signal mark sequence arranged alternately. The signal mark sequence is adapted to the geometric parameters of the spool such that the ratio of the section length of the signal mark sequence to the corresponding winding diameter satisfies a preset value, and the section length of the signal mark sequence increases or decreases proportionally in response to an increase or decrease in the winding diameter of the fishing line on the spool. The fishing reel electromagnetic brake device further comprises a rotation detection mechanism provided on the body of the fishing reel, including a rotation speed sensor and configured to detect the rotation speed information of the spool, and a controller provided on the body of the fishing reel, comprising a processor, a memory, and a current control unit, and being electrically connected to the guide ring speed measurement mechanism and the rotation detection mechanism. The current control unit is electrically connected to the brake coil, and the memory stores the preset value. When releasing fishing line, the controller calculates, by the controller, the number of signal marks of the fishing line passing through the fishing line outlet and the rotation angle of the spool within the same period, calculates a correction signal for correcting the rotation speed of the spool by calculating the guide ring passing speed and the tangential speed from the number of signal marks, the rotation angle of the spool, and the preset value, and performs closed-loop control by controlling the electromagnetic induction current in the brake coil via the current control unit according to the correction signal.

8. The linear velocity sensor is provided on the inner wall or side surface of the guide ring of the fishing reel, and its detection direction is directed to the fishing line passing through the line outlet. The guide ring speed measurement mechanism detects the speed information and causes the controller to process it. As a realization method, the guide ring speed measurement mechanism further includes a projection light source and a photoelectric sensor. The signal mark sequence is formed by alternately arranging color sections with different reflectivities. The projection light source irradiates the fishing line, and the photoelectric sensor converts the detected reflected light signal into an electrical pulse signal, or the guide ring speed measurement mechanism is a magnetic sensor, the signal mark sequence is formed by alternately arranging magnetic marks, and the magnetic sensor converts the detected magnetic signal into an electrical pulse signal. The electromagnetic brake device for a fishing reel according to claim 7, characterized in that.

9. The controller realizes the control of the electromagnetic induction current in the brake coil by any one of the following: the current control unit is a switching element, and the correction signal controls the on / off of the switching element by on / off switching; or the current control unit is a switching element, and the correction signal controls the ratio of the on / off time of the switching element by adjusting the duty ratio of the PWM signal; or the current control unit is a current intensity adjustment element, and the correction signal adjusts the current intensity in the current intensity adjustment element by changing the intensity. The electromagnetic brake device for a fishing reel according to claim 7 or 8, characterized in that.

10. The closed-loop control is realized by any one of the following: using the passing speed of the guide ring as the input target control value and the tangential speed as the output controlled value and the feedback value; or using the set allowable speed difference threshold as the input target control value and the difference value between the tangential speed and the passing speed of the guide ring as the output controlled value and the feedback value; or using the set allowable floating line length threshold as the input target control value and the floating line length as the output controlled value and the feedback value; or using the set integral difference control value as the input target control value and the speed integral difference value as the output controlled value and the feedback value. The electromagnetic brake device for a fishing reel according to any one of claims 7 to 9, characterized in that.

11. The fishing reel electromagnetic brake device according to any one of claims 7 to 10, wherein the rotational speed sensor is a photoelectric sensor, a Hall sensor, a speed measurement sensor based on imaging, an electromagnetic sensor, or an inductive sensor.

12. A fishing line, characterized in that it is adapted to be used in the fishing reel electromagnetic brake device according to any one of claims 7 to 11.

Images