Electromagnetic brake device for fishing reels, fishing line, and speed measuring 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 priority to a Chinese patent application filed with the China Patent Administration on July 10, 2022, application number 202210806287.1, with the title of invention "Electromagnetic Brake Device for Fishing Reel and Fishing Line," and incorporates all of its contents by reference.

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

[0003] This disclosure claims priority to a Chinese patent application filed with the China Patent Administration on February 16, 2023, application number 202310119377.8, with the title of invention "Electromagnetic brake device for fishing reel, fishing line and speed measuring mechanism," and incorporates all of its contents into this application by reference.

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

[0005] This application relates to fishing equipment, and more specifically to an electromagnetic brake device for fishing reels, fishing lines, and speed measuring mechanisms. [Background technology]

[0006] When casting with a fishing reel, the lure flies due to inertia, the fishing line is pulled out from the reel's line release port, the spool rotates and releases the line, and the lure's flight speed is reduced by air resistance and friction of the fishing line. If the speed at which the spool rotates due to inertia and releases the fishing line is greater than the speed at which the fishing line is pulled out from the reel's line release port, some of the fishing line will remain inside the reel, forming a floating line, and further causing line entanglement and malfunction. For this reason, fishing reels are equipped with a device that brakes the spool to slow it down in order to prevent line entanglement during casting. In the fishing reel electromagnetic brake device disclosed in Chinese Patent Publication No. CN1965645B and Chinese Patent Publication No. CN110432236A, when the spool rotates and releases 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 a program, the induced current in the stator coil (or rotor coil) is controlled to brake and decelerate the spool. [Overview of the project] [Problems that the invention aims to solve]

[0007] The inventors argue that in actual fishing, wind speed, lures, and fishing lines vary, making the decay pattern of the fishing line release speed during casting uncertain and influenced by complex factors. Conventional technology cannot detect this fishing line release speed, nor can it detect the compatibility between the fishing line release speed and the speed at which the spool rotates to release the line. It only performs open-loop control of the spool's braking force based on pre-set programs and parameters, failing to dynamically correct and control spool rotation speeds that deviate from the optimal value, resulting in an unstable braking effect. Insufficient braking force or excessive spool rotation speed can lead to line entanglement, while excessive braking force consumes too much energy for the lure's flight, shortening its distance. Furthermore, conventional electromagnetic brake devices for fishing reels required complex parameter settings to be performed in advance. [Means for solving the problem]

[0008] According to various embodiments of the present invention, a fishing reel electromagnetic brake device, a fishing line, and a speed measuring mechanism are provided to solve at least one of the above-mentioned problems.

[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 comprises a guide ring and a spool that rotates to wind up or release fishing line, the fishing reel electromagnetic brake device comprises a brake mechanism, the brake mechanism comprises a brake coil and a magnetic brake member arranged opposite each other, one of the magnetic brake member and the brake coil rotates integrally with the spool to form a rotor, the other is arranged on the body of the fishing reel to form a stator, when releasing fishing line, the magnetic brake member and the brake coil rotate relative to each other and act toward generate electromagnetic induction to brake the spool, the fishing reel electromagnetic brake device comprises a guide ring speed measuring mechanism which is a linear velocity sensor provided on the inner wall of the guide ring and is configured to detect speed information of the fishing line passing through the guide ring, and a rotation detection mechanism provided on the body of the fishing reel which includes a main rotation speed sensor and a rotation direction detection device and is configured to detect rotation information of the spool, including rotation pulses and rotation direction, A controller provided on the body of the fishing reel, comprising a processor, memory, current control unit, and I / O interface, and electrically connected to the guide ring speed measuring mechanism and the rotation detection mechanism via the I / O interface, wherein the current control unit is electrically connected to the brake coil, and the memory records and stores conversion relationship parameters of the spool winding turns, rotation speed, and tangential speed, and further comprises the controller, wherein when the fishing line is released, the controller calculates the speed through which the guide ring passes from the speed information, calculates the rotation direction, rotation speed, and winding turn count values ​​of the spool from the rotation information, stores the winding turn count value in the memory, calculates the tangential speed from the winding turn count, rotation speed, and conversion relationship parameters of the spool when the rotation direction of the spool is the direction in which the fishing line is released, calculates a correction signal to correct the rotation speed of the spool from the tangential speed and the current speed through which the guide ring passes, and controls 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, and as an implementation method, The guide ring speed measuring mechanism further comprises a projection light source and a photoelectric sensor, the fishing line used having alternating color sections with different reflectivity having fixed mark lengths, the projection light source irradiates the fishing line, the photoelectric sensor converts the detected reflected light signal into an electrical pulse signal, and the electrical pulse signal and the fixed mark lengths are used to calculate the speed through which the guide ring passes. Alternatively, the guide ring speed measuring mechanism further comprises a projection light source and an image sensor, the projection light source irradiates the fishing line, the image sensor acquires local image information of the moving fishing line at regular time intervals, the controller compares and analyzes the local images in time series, and uses the distance the local images have moved at regular time intervals to calculate the speed through which the guide ring passes. Alternatively, the guide ring speed measuring mechanism is a magnetic sensor, the fishing line used having alternating magnetic marks having fixed mark lengths, the magnetic sensor converts the detected magnetic signal into an electrical pulse signal, and the electrical pulse signals and the fixed mark lengths are used to calculate the speed through which the guide ring passes.

[0011] Preferably, in the embodiment of the first aspect, the controller achieves 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 switching of the switching element; the current control unit is a switching element and the correction signal controls the ratio of on / off times of the switching element by adjusting the duty cycle 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 its strength.

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

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

[0014] An embodiment of a second aspect of the present invention provides a fishing line. The fishing line has signal mark sections of a fixed mark length, the signal marks can be detected by a guide ring speed measuring mechanism of a fishing reel and converted into an electrical pulse signal, the electrical pulse signal and the fixed mark length are used to calculate the speed through which the line passes the guide ring, the signal mark sections consist of alternating color sections with different reflectances, and the guide ring speed measuring mechanism includes a projection light source and a photoelectric sensor.

[0015] A third embodiment of the present invention provides a fishing line having a signal mark section of a fixed mark length, the signal mark being detectable by a guide ring speed measuring mechanism of a fishing reel and converted into an electrical pulse signal, the electrical pulse signal and the fixed mark length being used to calculate the speed passing through the guide ring, the fishing line having a magnetic material attached, the signal mark section being formed by a recorded series of magnetic signals, and the guide ring speed measuring mechanism comprising a magnetic sensor.

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

[0017] The speed measuring mechanism further comprises a projection light source and a photoelectric sensor, wherein the fishing line used has alternating sections of different reflectivity having fixed mark lengths, the projection light source irradiates the fishing line, the photoelectric sensor converts the detected reflected light signal into an electrical pulse signal, and the electrical pulse signal and the fixed mark lengths are used to calculate the speed through the guide ring; or the speed measuring mechanism further comprises a projection light source and an image sensor, wherein the projection light source irradiates the fishing line, the image sensor acquires local image information of the moving fishing line at regular time intervals, compares and analyzes the local images in time series, and uses the distance the local image has moved at regular time intervals to calculate the speed through the guide ring; or the speed measuring mechanism is a magnetic sensor, wherein the fishing line used has alternating magnetic marks having fixed mark lengths, the magnetic sensor converts the detected magnetic signal into an electrical pulse signal, and the electrical pulse signals and the fixed mark lengths are used to calculate the speed through the guide ring.

[0018] Preferably, in the embodiment of the fourth aspect, if the speed measuring mechanism includes a photoelectric sensor or an image sensor, the speed measuring mechanism further includes a light leakage notch provided in the inner wall of the guide ring, and the detection direction of the linear velocity sensor is directly facing the light leakage notch; if the speed measuring mechanism is implemented by a magnetic sensor, the magnetic sensor is a magnetic head protruding from the inner wall of the guide ring; the speed measuring mechanism further includes a positioning support provided in the inner wall of the guide ring, and the positioning support maintains or stabilizes the gap between the fishing line in the guide ring and the magnetic head to zero. Maintain a gap between the actions.

[0019] According to an embodiment of a fifth aspect of the present application, a line speed measuring device is provided which includes a linear velocity sensor, wherein guide rings are further provided on both sides of the detection window of the linear velocity sensor, and both the linear velocity sensor and the guide rings are fixedly assembled to a connecting device, the line to be measured passes through the guide rings, and the guide rings guide the line to be measured such that a measurable distance is maintained between the line to be measured and the linear velocity sensor, and the line speed measuring device is configured to measure the winding and release speed of a fishing line in a fishing reel, the line to be measured is a fishing line, and the linear velocity sensor is a reflective velocity measuring sensor or an imaging-based velocity measuring sensor.

[0020] Preferably, in the embodiment of the fourth aspect, the connecting device is the housing of the linear velocity sensor, and the linear velocity sensor and the guide ring are fixedly connected as a single unit via the housing, or the connecting device is at least one of a fishing rod or a fishing reel, and in the speed measurement operation state, the linear velocity sensor and the guide ring maintain a relatively fixed positional relationship.

[0021] According to an embodiment of a sixth aspect of the present application, a fishing reel electromagnetic brake device is provided for use in 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 is a linear velocity sensor provided at the line release port of the fishing reel, and a guide ring speed measuring mechanism configured to detect speed information of fishing line passing through the guide ring, wherein the fishing line has an alternately arranged signal mark sequence, and the signal mark sequence is adapted to the geometric parameters of the spool such that the length of the signal mark sequence increases or decreases proportionally to the increase or decrease in the winding diameter of the fishing line on the spool, such that the ratio of the section length of the signal mark sequence to the corresponding winding diameter satisfies a preset value, The fishing reel further comprises: a rotation detection mechanism provided on the body of the fishing reel, including a rotation speed sensor, configured to detect rotation speed information of the spool; a controller provided on the body of the fishing reel, comprising a processor, a memory, and a current control unit, electrically connected to the guide ring speed measuring mechanism and the rotation detection mechanism, wherein the current control unit is electrically connected to the brake coil, and the memory stores the preset value; and when the fishing line is released, the controller calculates the number of signal marks of the fishing line passing through the line release port and the rotation angle of the spool within the same period, calculates the guide ring passage speed and tangential speed from the number of signal marks, the rotation angle of the spool, and the preset value, calculates a correction signal to correct the rotation speed of the spool, and performs closed-loop control by controlling the electromagnetic induction current in the brake coil via the current control unit in accordance with the correction signal.

[0022] Preferably, in the sixth embodiment, the linear velocity sensor is provided on the inner wall or side of the guide ring of the fishing reel, and its detection direction is directed toward the fishing line passing through the line discharge port, and the guide ring velocity measuring mechanism detects the velocity information and causes the controller to process it, and as an implementation method, the guide ring velocity measuring mechanism further comprises a projection light source and a photoelectric sensor, the signal mark sequence consists of alternating color sections with different reflectances, 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 velocity measuring mechanism is a magnetic sensor, the signal mark sequence consists of alternating magnetic marks, and the magnetic sensor converts the detected magnetic signal into an electrical pulse signal.

[0023] Preferably, in the sixth embodiment, the controller controls 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 switching of the switching element; the current control unit is a switching element and the correction signal controls the ratio of on / off times of the switching element by adjusting the duty cycle 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 its strength.

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

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

[0026] According to an embodiment of the seventh aspect of the present application, a fishing line is provided that is suitable for use in a fishing reel electromagnetic brake device described in any one of the sixth aspects.

[0027] According to an embodiment of the eighth aspect of the present application, a fishing reel electromagnetic brake device is provided for use in a fishing reel having a guide ring and a spool, the fishing reel electromagnetic brake device comprises a brake coil and a magnetic brake member that rotates integrally with the spool, the brake coil is fixed to the fishing reel body, and when the fishing line is released, the brake coil brakes the spool by electromagnetic induction, the fishing reel electromagnetic brake device further comprises a guide ring speed measuring mechanism which is a linear velocity sensor provided at the line release port of the fishing reel and configured to detect the speed at which the guide ring passes, a spool imaging speed measuring device provided on the body of the fishing reel whose detection direction is directed toward the surface fishing line of the spool and configured to detect the tangential speed of the surface fishing line, and a controller provided on the body of the fishing reel which comprises a processor, a memory, and a current control unit and is electrically connected to the guide ring speed measuring mechanism, the controller in which the current control unit is electrically connected to the brake coil. When the fishing line is released, the controller performs closed-loop control, calculates a correction signal to adjust the rotation speed of the spool from the speed passing through the guide ring 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 eighth embodiment, the linear velocity sensor is provided on the inner wall or side of the guide ring of the fishing reel so as to direct the detection direction toward the fishing line released from the guide ring, the guide ring speed measuring mechanism detects the speed information and causes the controller to process it, and as an implementation method, the guide ring speed measuring mechanism further comprises a projection light source and a photoelectric sensor, the fishing line used consists of alternating color sections with different reflectances having fixed mark lengths, the projection light source irradiates the fishing line, the photoelectric sensor converts the detected reflected light signal into an electrical pulse signal, and the electrical pulse signal and the fixed mark length are used to calculate the speed passing through the guide ring. Alternatively, the guide ring speed measuring mechanism further comprises a projection light source and an image sensor, wherein the projection light source illuminates the fishing line, the image sensor acquires local image information of the moving fishing line at regular time intervals, the controller compares and analyzes the local images in time series, and uses the distance the local images have moved at regular time intervals to calculate the speed through which the guide ring passes, or the guide ring speed measuring mechanism is a magnetic sensor, the fishing line used is made up of alternating magnetic marks having a fixed mark length, 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 speed through which the guide ring passes. [Effects of the Invention]

[0029] Compared to the prior art, the beneficial effects of the present invention are as follows: The fishing line and speed measuring mechanism of the present invention enables detection of the fishing line release speed of a fishing reel. Furthermore, the fishing reel electromagnetic brake device of the present invention improves the stability of the fishing reel brake by controlling the braking force according to the matching state between the fishing line release speed and the tangential speed at which the spool rotates and releases the fishing line, correcting the deviation of the spool rotation speed in a timely manner, and achieving closed-loop control. In addition, the embodiments provided by the present invention can also reduce the complexity of parameter setting. Details of one or more embodiments of the present invention will be described through the following drawings and description. Other features, purposes and advantages of the present invention will become apparent from the specification, drawings and claims. [Brief explanation of the drawing]

[0030] [Figure 1] This is a perspective view of the exterior of a fishing reel using conventional technology.

[0031] [Figure 2] This is a perspective exploded view of a conventional fishing reel brake device.

[0032] [Figure 3] This is a schematic diagram of the system configuration of an electromagnetic brake device for a fishing reel in one embodiment.

[0033] [Figure 4] This is a schematic cross-sectional view of a guide ring speed measurement mechanism in one embodiment.

[0034] [Figure 5] This is a schematic diagram illustrating the detailed configuration of a guide ring speed measurement mechanism in several embodiments.

[0035] [Figure 6] This is a schematic cross-sectional view of a guide ring speed measuring mechanism in several other embodiments.

[0036] [Figure 7] This is a schematic diagram of the left side plate of the spool and the rotation speed reflective mark in one embodiment.

[0037] [Figure 8] This is a flowchart showing the processing steps of the controller in one embodiment.

[0038] [Figure 9] This flowchart shows the processing steps of the controller in several embodiments.

[0039] [Figure 10] This is a closed-loop control block diagram in one embodiment.

[0040] [Figure 11] These are closed-loop control block diagrams in several embodiments.

[0041] [Figure 12] This is a closed-loop control block diagram in some other embodiments.

[0042] [Figure 13] This is a schematic diagram of the conversion relationship table in several examples.

[0043] [Figure 14] This is a schematic diagram of a fishing line.

[0044] [Figure 15] This is a schematic diagram of a different fishing line.

[0045] [Figure 16] This is a schematic cross-sectional view of a light leakage notch in a guide ring speed measuring mechanism in several embodiments.

[0046] [Figure 17] This is a schematic cross-sectional view of a light leakage notch at the end of a guide ring speed measuring mechanism in several embodiments.

[0047] [Figure 18] This is a schematic cross-sectional view of the positioning support portion of the guide ring speed measuring mechanism in several embodiments.

[0048] [Figure 19] This is a schematic cross-sectional view of a line speed measuring device in several embodiments.

[0049] [Figure 20] This is a schematic diagram of the configuration of a line speed measuring device in another embodiment. [Modes for carrying out the invention]

[0050] The embodiments of the present application will be further described below, but these descriptions are all illustrative and are intended to enable those skilled in the art to implement the embodiments of the present application, and are not intended to limit the scope of protection of the present application. The embodiments and features within the embodiments of the present application may be combined with each other, as long as they do not contradict each other.

[0051] This specification does not include anything that is essential for practical implementation but irrelevant to understanding this application. For example, power supply, comp Instructions, specific processor operating processes, and specific closed-loop control algorithms are not described. These are all known technologies, and those skilled in the art will be well aware that these known technologies can be applied to the implementation of this application in various ways simply by referring to this specification.

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

[0053] In this specification, "one embodiment" or "some embodiments" means that a particular feature, structure, or characteristic described in conjunction with that embodiment is included in one or more embodiments of this specification. Therefore, unless otherwise specifically emphasized, phrases such as "in one embodiment," "in some embodiments," "in some other embodiments," or "in some different embodiments" appearing in different parts of this specification do not necessarily refer to the same embodiment, but rather mean "one or more embodiments, but not all of them."

[0054] Furthermore, in the description of the embodiments herein, “multiple” means two or more, and the terms “including,” “equipped,” “having,” and variations thereof mean “including, but not limited to,” unless otherwise emphasized.

[0055] The term "guide ring" in this application specifically refers to a component of the line release port of a fishing reel through which the unwound fishing line is passed and pulled out of the reel. For example, the "line guide" of a double-bearing reel is typically such a component.

[0056] The guide ring passage speed V in this application specifically refers to the speed at which the fishing line passes through the guide ring 400 when the fishing line is released or retracted, or is considered equivalent to the length of the fishing line that passes through the guide ring 400 during a certain observation period T. The tangential speed V in this application t Specifically, this refers to the speed at which the fishing line is wound in or released when the spool 200 rotates, or is considered equivalent to the length of fishing line wound in or released by the rotation of the spool 200 during a certain observation period T. The rotational speed V in this application r Specifically, this refers to the rotational speed of the spool 200, or is considered equivalent to the number of rotations the spool 200 performs during a certain observation period T. The observation period T mentioned above may be a fixed absolute time length, for example, 1 second, or it may be a relative reference period. For example, the observation period T may be the period during which the spool 200 rotates by a certain angle A.

[0057] In some embodiments, both the speed at which the fishing line passes through the line release port and the speed at which the spool releases the fishing line are simultaneously divided by a certain measurement conversion value to obtain the "relative guide ring passage speed" and the "relative tangential speed," respectively. In this case, the "guide ring passage speed V" mentioned above may also be the relative guide ring passage speed, and the "tangential speed V" mentioned above may also be the relative guide ring passage speed. t " may also be the relative tangential velocity, and the details thereof will be explained in detail in the section on Example 2.

[0058] In this application, "number of winding turns" or "number of spool winding turns" specifically refers to the number of turns the fishing line is wound onto the spool. In this application, "fishing line release" specifically refers to the state in which the spool releases the fishing line. In this application, "winding diameter" or "winding body diameter" specifically refers to the overall diameter of the spool on which the fishing line has been wound.

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

[0060] Figures 1 and 2 show a conventional fishing reel. This fishing reel comprises a fishing reel body 100, a spool 200, a clutch switch 300, a guide ring 400, and a handle 500. Inside the fishing reel, there is also a gear transmission mechanism and a clutch mechanism. When winding the fishing line, the clutch mechanism engages, and the handle 500 rotates the spool 200 via the gear transmission mechanism. When the clutch switch 300 is pressed, the clutch mechanism disengages, separating the spool 200 from the transmission mechanism. At this point, the spool 200 becomes freely rotatable, and the fishing line is released. Left and right plates are provided on both sides of the spool 200, and the spool 200 and the spool shaft 202 are fixed together to interlock (see Figure 2). Left and right covers are provided on both sides of the fishing reel body 100. The above describes a structural configuration commonly found in some conventional fishing reels, and such fishing reels are generally referred to as double-bearing reels.

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

[0062] As shown in Figure 2, the brake mechanism 800 comprises a brake coil 801 and a magnetic brake member 802, and the brake mechanism 800 brakes the spool 200 by electromagnetic induction during the process of releasing the fishing line. Here, the magnetic brake 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 body 100. By arranging the brake coil 801 and the magnetic brake member 802 opposite each other, the rotation of the magnetic brake member 802 generates an induced current in the brake coil 801.

[0063] As a more specific example of a braking mechanism, as shown in Figure 2, the magnetic brake member 802 is made up of four permanent magnets and is attached to the spool shaft 202 via a connecting member 803 so as to be rotatable as an integral part of the spool shaft 202. The spool shaft 202 is attached to the spool 200 so as to be rotatable as an integral part of the spool shaft 200. The multiple magnetic poles of the magnetic brake member 802 are arranged rotationally symmetrically about the axis of the spool shaft 202. Correspondingly, the brake coil 801 is a combination of four individual coils connected in series and is fixed to the fishing reel body 100 via the circuit board of the controller 900. The brake coil 801 is positioned on the outer circumference of the magnetic brake member 802, facing the magnetic brake member 802, and is also positioned coaxially with the axis of the spool shaft 202.

[0064] In some examples, the brake coil 801 may be provided as a rotor and the magnetic brake member 802 as a stator, and this application is not limited thereto. In some examples, the rotor may be located on the side of the spool 200 or at another position, and correspondingly, the stator may be located opposite the rotor to constitute a power generation device, and this application is not limited thereto. In some examples, the number of permanent magnets used in the magnetic brake member 802 and the number of individual coils used in the brake coil 801 may both be one or more, and this application is not limited thereto. In some examples, the brake coil 801 may be a combination of multiple individual coils connected in parallel or a mixed combination of series and parallel connections, but this application is not limited thereto.

[0065] Some differences between the embodiment of the present invention and the prior art are that the method for controlling the current in the brake coil 801 described above has been improved, specifically by detecting the speed through which the guide ring passes and performing closed-loop control according to the tangential speed and the speed through which the guide ring passes.

[0066] Furthermore, the structures shown in the embodiments of this application do not constitute a specific limitation on fishing reels or their braking devices. In some embodiments of this application, the fishing reels or their braking devices may include more or fewer parts than shown, some parts may be combined, some parts may be disassembled, or different parts may be arranged.

[0067] (Example 1) Example 1 is a preferred embodiment of the present invention. As shown in Figure 3, in one embodiment of the present invention, the electromagnetic brake device for a fishing reel further comprises a guide ring speed measuring mechanism 600, a rotation detection mechanism 700, and a controller 900 in addition to the brake mechanism 800 described above, and each part will be described in detail below.

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

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

[0070] The linear velocity sensor described above employs known technologies. For example, linear velocity or displacement can be detected using any of the commonly used optical grid sensors, magnetic grid sensors, or image-based velocity measurement sensors.

[0071] By mounting the linear velocity sensor so as to be embedded in the inner wall of the guide ring 400, the passage of the fishing line within the guide ring 400 can be made smoother. Alternatively, if the guide ring velocity measuring mechanism 600 is mounted on 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 measuring mechanism 600 further comprises a projection light source 601 and a light receiving unit 602. The projection light source 601 is configured to emit light onto the fishing line moving within the guide ring 400, and the light receiving unit 602 is configured to receive the reflected light signal from 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 an integral unit. More specifically, as shown in Figure 5, the projection light source 601, the light receiving unit 602 and an optical element are combined, and the light beam emitted from the projection light source 601 passes through the first lens 603, is reflected by the beam splitter 606, and then passes through the third lens 605 to irradiate the fishing line, and the reflected light from the fishing line passes through the third lens 605, the beam splitter 606 and the second lens 604 before reaching the light receiving unit 602. In another optical path combination configuration shown in Figure 6, the light emitted from the projection light source 601 passes through the first lens 603 and illuminates the fishing line, and the reflected light from the fishing line passes through the second lens 604 before reaching the light receiving unit 602. These similar optical combination configurations are known techniques and are not limited to them.

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

[0074] As shown in Figure 15, in some embodiments, the fixed mark length L of the fishing line used in this embodiment 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. The value of the fixed mark length L can be set to suit different application scenarios, and the lower the value of the fixed mark length L, the higher the detection accuracy, but this application is not limited to this.

[0075] It is also known that displacement or velocity can be detected using the reflected light from signal marks. This technology has several specific applications, including, for example, the widely used optical grid rulers and mice that use optical grids for positioning.

[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 rotation information of the spool 200, including rotation pulses and rotation direction. The rotation detection mechanism 700 is located on the fishing reel body 100 and transmits the detected rotation information to the controller 900.

[0078] Specifically, the rotation detection mechanism 700 comprises a main rotation speed sensor configured to detect rotation speed and an auxiliary rotation speed sensor as a rotation direction detection device. Both the main and auxiliary rotation speed sensors 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 direction of the two rotation speed sensors is directed toward the left side plate 201 of the spool. Furthermore, these two rotation speed sensors form a certain concentric angle with the rotation center of the spool 200 as the center. As shown in Figure 7, N rotation speed reflective marks 701 are provided on the outside of the left side plate 201 of the spool at positions corresponding to the detection direction of the reflective photoelectric rotation speed sensors. When the spool 200 rotates, the rotation speed sensors emit light rays and detect the reflected light signals of the rotation speed reflective marks 701 to generate rotation pulse signals. The phase difference between the rotation pulse signals generated by the auxiliary rotation speed sensor and the main rotation speed sensor is used to calculate the rotation direction of the spool 200.

[0079] The number of rotation speed reflection marks N is 3 in the above example, and in some embodiments, the number of rotation speed reflection marks N may be any other natural number greater than 0, and this application is not limited thereto. In some embodiments, both the auxiliary rotation speed sensor and the main rotation speed sensor may be multiple, and this application is not limited thereto.

[0080] Furthermore, the detection of rotational speed, rotational frequency, and rotational direction using sensors is a known technique. In some embodiments, the above-mentioned reflective photoelectric rotational speed sensor may be replaced with other known elements such as other photoelectric detection devices, Hall sensors, proximity switches, and contact switches. The sensor is installed at a position on the fishing reel body 100 where the rotational information of the spool 200 can be detected, thereby achieving a similar function.

[0081] (3) Controller 900

[0082] In this embodiment, the circuit board of the controller 900 is located inside the left side cover of the fishing reel. As shown in Figure 3, the controller 900 specifically comprises a processor 901, 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 located in another suitable location within the fishing reel 1 body, and the present invention is not limited thereto. In some embodiments, the RAM memory 904, ROM memory 905, and flash memory 906 described above may be replaced with other known memory elements having similar functions. For example, ROM may be replaced with flash memory (FLASH ROM), and DRAM may be replaced with SRAM, and the present invention is not limited thereto.

[0084] The controller 900 is equipped with a guide ring passage speed calculation module 912, which calculates the guide ring passage 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 winding turn number 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 winding turn number 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 winding turn number N r , 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 parameter is specifically parameter data information for calculating the corresponding tangential speed V r based on the winding turn number 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, the original diameter of the spool 200 is "D", the thickness d of the fishing line wound on the spool 200, and the winding turn number N rThis is converted using a fixed conversion factor K, i.e., d = K * N r Therefore, the tangential velocity V t Number of winding turns N r , and rotational speed V r Let the relationship be "Equation 1". That is, V t =π*(D+K*N r *2)*V r Therefore, the diameter D and coefficient K mentioned above are, in other words, conversion relation parameters.

[0090] The controller 900 is equipped with a tangential velocity calculation module 913, which calculates the number of turns N of the spool 200 when releasing the fishing line. r , rotational speed V r , and from the conversion relationship parameters stored in memory, the tangential velocity V t Calculate it. A concrete example is shown.

[0091] Tangential velocity V t =π*(D+K*N r *2)*V r That is the case.

[0092] The current control unit 903 is a switching element, and the correction signal controls the on / off state of the switching element by switching it on and off. Here, a switching element specifically refers to an element or combination of elements that controls the on / off state of current using an input signal, such as a field-effect transistor (FET), a switching triode, a thyristor, etc., and the present invention 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] (iv) Closed-loop control

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

[0096] As a specific example, in a simple closed-loop control mode, the tangential velocity V t When the tangential speed V is greater than the speed through which the guide ring passes, 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, causing it to decelerate, and the tangential speed V t When the speed passing through the guide ring is less than or equal to V, a correction signal is output to turn off the current control unit 903, and the brake coil 801 cancels the generation of braking force on the spool 200, stopping the deceleration. This realizes closed-loop control.

[0097] Closed-loop control is a known technique, and in some embodiments, those skilled in the art may use any one or more of other different closed-loop control algorithms or combinations of multiple closed-loop control algorithms, such as two-position control, proportional control, integral control, differential control, and PID control, and this application is not limited thereto.

[0098] In this embodiment, the speed V through which the guide ring passes and the tangential speed V tBy dynamically detecting the matching state, automatically correcting the deviation in spool rotation speed, and achieving closed-loop control, the stability of the brake of the fishing reel is improved. Embodiment of the present invention

[0099] (Example 2) Based on Example 1 above, the following example is realized by making substitutions or improvements. Below, only the parts that are substituted or improved will be explained, and the explanation of points that are the same as in Example 1 will be omitted. Points that do not match the explanation in Example 1 will be explained below.

[0100] (i) Improvement or replacement of the guide ring speed measuring mechanism and the fishing line used.

[0101] Assuming that the structure of the guide ring speed measurement mechanism is not changed, this embodiment allows for the detection of the relative speed through the guide ring when fishing with a suitable fishing line. The suitable fishing line has a signal mark sequence in which color sections with different reflectivity are arranged alternately, and the light receiving unit 602 converts the detected reflected light signal into an electrical pulse signal. The signal mark sequence is adapted to the geometric parameters of the spool, and the adaptation relationship is such that the section length L of the signal mark sequence X And the corresponding winding diameter D X The ratio to is a pre-set value R r To satisfy this condition, i.e., R r =L X / D X As such, the winding diameter D of the fishing line on the spool X Depending on the increase or decrease of the signal mark sequence, the interval length L X This increases or decreases proportionally. By detecting the number of signal marks M and the spool rotation angle A that pass through the line discharge port within the same period T, it is possible to calculate the relative speed at which the fishing line passes through the guide ring at the line discharge port and the relative tangential speed at which the spool releases the fishing line.

[0102] As a concrete example, if we express the spool rotation angle A in degrees (assuming one full rotation of a circle is 360°), it would be as follows:

[0103] Speed ​​at which the fishing line passes through the line release port = M*R r *D X It is / T.

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

[0105] The two formulas above are used simultaneously with winding diameter D X Divide by the winding diameter D to obtain the relative speed through the guide ring and the relative tangential speed, i.e., the winding diameter D. X A relative value is obtained with the unit of measurement being M*R. Here, the relative speed through the guide ring = M*R r / T, relative tangential velocity = π*A / 360° / T.

[0106] Therefore, winding diameter D X Without calculating the number of turns, it is possible to calculate the relative guide ring speed and the relative tangential speed. The above relative guide ring speed is treated as the guide ring speed V, and the above relative tangential speed Degree of tangential velocity V t By treating it as such, closed-loop control can be performed.

[0107] As a more specific example, R r Assuming =2 and the original diameter of the spool D=0.02m, the signal mark section of the fishing line at the starting position is L0=D*R r = 0.04m, and as the thickness of the wound fishing line increases, the winding diameter D X Therefore, signal mark section L X =D X *R r =2D X For example, the winding diameter D X If it is 0.03m, the signal mark section is L X =2D X This becomes 0.06m. Thus, the signal mark interval on the fishing line gradually changes, the fishing line and the spool are in a compatible relationship, and the number of signal marks released on the fishing line is always the same when the spool rotates by the same angle.

[0108] Of course, this can also be achieved using other modified alternative methods based on the above principle. For example, if the rotation angle A is expressed in radians (where one full rotation of a circle is 2π), then the relative tangential velocity is A / 2 / T.

[0109] Furthermore, the linear velocity sensor may be mounted on the side of the guide ring. As one specific example, as shown in Figure 19, the linear velocity sensor comprises a projection light source 601 and a light receiving unit 602. The linear velocity sensor is positioned on the side of the guide ring 450 and is integrally connected to the guide ring via the housing of the linear velocity sensor. Of course, the connection between the linear velocity sensor and the guide ring is not limited to this method. For example, it may be connected via the fishing reel body or via a fishing rod. In short, as long as the guide ring guides the fishing line to be measured and the detection direction of the linear velocity sensor is directed towards the fishing line passing through the line release port, it is possible to detect the speed passing through the guide ring as long as the linear velocity sensor and the fishing line to be measured are within a measurable distance. This invention is not limited to this. Here, the measurable distance refers to the range of distance between the linear velocity sensor and the fishing line to be measured that is necessary 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 it can be determined by a finite number of experiments.

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

[0111] The rotation detection mechanism 700 is equipped with a rotation speed sensor and detects rotation information of the spool 200, which includes at least rotation pulses only. Rotation direction information is not required.

[0112] (3) Improvements to Controller 900

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

[0114] The controller 900 receives the rotation pulse signal generated from the rotation speed sensor of the rotation detection mechanism 700 and calculates the number of fishing line winding turns N of the spool 200 without calculating the rotation direction of the spool 200. r Without accumulating and counting, the number of turns N for winding spool 200 r , rotational speed V r , and tangential velocity V t The three parameters are processed without calculating or storing the corresponding conversion relationship parameters.

[0115] The tangential velocity calculation module 913 of the controller 900 calculates the relative tangential velocity from the rotation pulse when releasing the fishing line, and the tangential velocity V t Treat it as such.

[0116] (iv) Improvement or alternative to closed-loop control

[0117] Treat the relative speed through the guide ring as the guide ring speed V, and the relative tangential speed as the tangential speed V t By treating it as such, closed-loop control is achieved.

[0118] According to this embodiment, the complexity of the rotation detection mechanism can be reduced, the controller's processing process can be simplified, and the number of parameters to be set can be reduced.

[0119] (Example 3) Based on Example 1, the following example is realized by making substitutions or improvements. Below, only the parts that are substituted or improved will be explained, and the explanation of the points that are the same as in Example 1 will be omitted. Points that do not match the explanation in Example 1 will be explained below.

[0120] (1) Replacement for 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, and is installed on the body of the fishing reel. Its detection direction is directed toward the surface fishing line on the spool, and it is configured to directly detect the tangential speed of the surface fishing line.

[0122] (ii) Improvement or replacement of controller 900

[0123] The controller 900 does not need to process the spool rotation speed and related information, and the number of fishing line winding turns N of the spool 200. r There is no need to accumulate and count them. When releasing the fishing line, the tangential velocity calculation module 913 of the controller 900 calculates the tangential velocity V from the signal of the velocity measuring device based on the spool imaging. t Calculate it directly.

[0124] According to this embodiment, the complexity of the rotation detection mechanism can be reduced, the controller's processing process can be simplified, and the number of parameters to be set can be reduced.

[0125] (Other Embodiments) Based on Embodiment 1, Embodiment 2, or Embodiment 3 described above, the following embodiments are provided by substitution, transformation, modification, or improvement, to the extent that they do not contradict each other. These embodiments and their features may be combined with each other as long as they do not contradict each other, and it is possible to combine several of these embodiments and their features to form a new embodiment. Below, only the substitution, transformation, or improvement parts will be described, and descriptions of the identical parts with the original embodiments will be omitted. Points that do not match the description of the original embodiments will be described below.

[0126] (1) In some embodiments, the guide ring speed measuring mechanism 600 detects speed information and has the controller 900 process it, which is achieved by one of the following alternative methods.

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

[0128] Furthermore, detecting displacement or velocity using image information is a well-known technique; for example, widely used laser mice and the image-based velocity measurement sensors from TRANS-TEK in the United States are all applications of this known technique.

[0129] In Example 1 or Example 3, in an alternative method, the guide ring speed measuring mechanism 600 is a magnetic sensor, and using a fishing line with alternating magnetic signal marks of fixed mark length L, the guide ring speed measuring mechanism 600 converts the detected magnetic signal into an electrical pulse signal. Accordingly, the guide ring passage speed calculation module 912 calculates the guide ring passage speed V from the electrical pulse signal of the guide ring speed measuring mechanism 600 and the fixed mark length L of the magnetic mark fishing line used.

[0130] It should be noted that detecting displacement or velocity using magnetic signal marks is a well-known technique, and widely used magnetic grid sensors and magnetic grid rulers are one application of this technique.

[0131] As shown in Figure 16, specifically, a magnetic material is attached to a fishing line as a magnetic signal marker, a series of magnetic signals are recorded with a fixed mark length L as the interval, the magnetic poles are arranged as shown in Figure 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. Note that the value of the fixed mark length L can be set to suit different application scenarios, and the lower the value of the fixed mark length L, the higher the detection accuracy, but this application is not limited thereto.

[0132] A known technique may be used for manufacturing a fishing line to attach magnetic material. For example, magnetic tapes for recording data, sound, or video information are made by attaching a magnetic material to a flexible substrate, and such a method can also be used to attach magnetic material to a fishing line. Alternatively, for example, a magnetic material powder and a liquid adhesive can be mixed and applied to or impregnated into a fishing line or raw yarn for fishing line manufacturing to attach magnetic material to the fishing line.

[0133] In Embodiment 2, in yet another alternative method, the guide ring speed measuring mechanism 600 is a magnetic sensor, and the compatible fishing line has a signal mark sequence in which magnetic signal marks of fixed mark length L are arranged alternately, and the guide ring speed measuring mechanism 600 converts the detected magnetic signal into an electrical pulse signal. The signal mark sequence is compatible with the geometric parameters of the spool, and the compatibility relationship is the interval length L of the signal mark sequence. X And the corresponding winding diameter D X The ratio to is a pre-set value R r To satisfy this condition, i.e., R r =L X / D XAs such, the winding diameter D of the fishing line on the spool X Depending on the increase or decrease of the signal mark sequence, the interval length L X This increases or decreases proportionally. Accordingly, the guide ring passage speed calculation module 912 calculates the relative guide ring passage speed from the electrical pulse signal of the guide ring speed measuring mechanism 600 and defines it as the guide ring passage speed V.

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

[0135] In one alternative method, the current control unit 903 is specifically a switching element that switches the electromagnetic induction current in the brake coil 801 on and off, and the correction signal controls the ratio of the on / off time of the switching element by adjusting the duty cycle 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 within the current intensity adjustment element by changing its strength.

[0137] Here, the term "current intensity adjustment element" specifically refers to an element or combination of elements that controls the change in current intensity based on an input signal, such as a field-effect transistor or triode operating in the variable resistance region, or a combination thereof, or a combination of circuits that realize a digital potentiometer function, and this invention is not limited to this.

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

[0139] In one alternative method, as shown in Figure 12, the tangential velocity V t The difference between the speed V passing through the guide ring and the speed V is ΔV = V t-V is calculated, and the controller 900 is equipped with a ΔV calculation module 914, which includes a guide ring passage speed calculation module 912 and a tangential speed calculation module 913, which are given in advance The allowable speed difference threshold Vk is used as the input target control value, and the difference value ΔV is used as the output controlled value and feedback value.

[0140] As an alternative to Example 1 or Example 3, in some examples the range of the allowable speed difference threshold Vk is -0.1 to 1.0 m / s, in some other examples the range of the allowable speed difference threshold Vk is -0.05 to 0.5 m / s, and in some other examples the range of the allowable speed difference threshold Vk is 0 to 0.2 m / s.

[0141] As an alternative to Example 2, in some embodiments, the above-mentioned permissible speed difference threshold Vk may also be converted or adjusted as appropriate. For example, relative values ​​may be converted using the original diameter D of the spool as the unit of measurement. For example, a value within the range of -5 to 50 / second may be selected as the permissible speed difference threshold Vk. Note that the value of the permissible speed difference threshold Vk can be set to suit different application scenarios, and this application is not limited thereto.

[0142] In another alternative method, as shown in Figure 13, the controller 900 is provided with a floating line length Lf calculation module 915, which includes a guide ring passage speed calculation module 912 and a tangential speed calculation module 913. The Lf calculation module 915 calculates the integral of the difference value ΔV for the fishing line release time and determines the floating line length Lf that remains in the spool when the fishing line is released. A preset allowable floating line length threshold 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 refers to the length of fishing line that has already been released from the spool 200 but has not been pulled out from the guide ring 400 and remains inside the spool when the fishing line is released.

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

[0145] As an alternative to Example 2, in some embodiments, the allowable floating thread length threshold Lk may also be converted or adjusted as appropriate. For example, relative values ​​may be converted using the original diameter D of the spool as the unit of measurement. For example, a value within the range of 0 to 40 may be selected as the allowable floating thread length threshold Lk. Note that the value of the allowable floating thread length threshold Lk can be set to suit different application scenarios, and this application is not limited thereto.

[0146] By maintaining an appropriate floating line length through closed-loop control, it is possible to ensure that the fishing line does not tangle and remains moderately slack, while also preventing the kinetic energy of the lure's inertia from being consumed by the braking system, thereby increasing the lure's flight distance.

[0147] Some other alternative implementation methods include, for example, a period T p The integral value S of the guide ring passage velocity V for the period T is calculated. p Tangential velocity V t The integral value S t The difference between these two values ​​is calculated as the velocity integral difference value ΔS = S t The integral difference control value Sk is calculated as -S, and the pre-set integral difference control value Sk is used as the input target control value, while the velocity integral difference value ΔS is used as the output controlled value and feedback value to perform closed-loop control. During the above period T p ≥ the sampling period of closed-loop control, and T p ≤ Fishing line release time. Also, T p This may be a fixed value or a dynamic value, and specifically, a suitable value may be determined by a person skilled in the art through a finite number of experiments, but this application is not limited thereto.

[0148] These uniform conversion methods described above are readily conceivable to those skilled in the art, and any method that achieves closed-loop control falls within the spirit and scope of protection sought by this application.

[0149] (iv) In some embodiments of Example 1, rotation direction detection may be further implemented by any one of the following rotation direction detection devices.

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

[0151] As an alternative method, the rotation direction detection device is a state detection element provided on the body of the fishing reel, and this state detection element uses a switching element such as a known Hall switch, contact switch, or proximity switch to detect changes in the position or operation of the mechanical parts of the fishing reel and can determine the rotation direction of the spool from the generated detection signal. Detecting the position or operation of mechanical parts and converting it into an electrical signal is a known technique; 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 fishing reel body 100 so as to be opposite the position of the magnet, to detect the operation state of winding and releasing the fishing line.

[0152] As an alternative, the rotation direction detection device is implemented by a threshold comparison unit, which reads the absolute value or rate of change of any one of the following: the rotation speed, tangential speed, or guide ring passage speed of the spool, and determines whether the spool is in the line-releasing state based on whether it detects that the read parameter is greater than its respective preset threshold. At the start of casting, the spool 200 rotates at high speed, and during winding, the spool 200 rotates at low speed. If the absolute value of the read speed is higher than its corresponding preset threshold, it is determined that the casting and line-releasing state has been entered. Subsequently, if it is detected that the continuous line-releasing process has stopped, the casting and line-releasing state is terminated and the system switches to the winding state. Alternatively, as another alternative, the spool rotation speed V at the start of casting r or tangential velocity V t Alternatively, since the guide ring passage speed V has a high rate of instantaneous change, it is possible to determine whether or not the casting and line release state has been entered by detecting whether or not the rate of change is higher than the corresponding preset rate of change threshold.

[0153] The range of possible values ​​for the above rotational speed threshold is 5 revolutions / second to 500 revolutions / second in some embodiments, and 50 revolutions / second to 100 revolutions / second in some other embodiments. The above tangential speed V t The range of possible values ​​for the threshold of the guide ring passage speed V 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 thresholds for the above parameters or the preset thresholds for the rate of change of the above parameters may be set according to different application scenarios, and suitable values ​​may be determined by a person skilled in the art through a finite number of experiments, but this application is not limited thereto.

[0154] The electrical circuit of the threshold comparison unit described above is electrically connected to the controller 900 and may be provided on the fishing reel body 100. As one possible arrangement, the electrical circuit of this threshold comparison unit may be integrated with the electrical circuit of the controller 900, but the present invention is not limited thereto. By detecting the direction of rotation using the threshold comparison method, the complexity of the system can be reduced, reliability can be improved, and manufacturing costs can be lowered.

[0155] As another possible alternative, the rotation direction detection device is implemented by an acceleration sensor provided on the fishing reel body, which is electrically connected to the controller and determines whether the spool is in the line-releasing state based on whether it detects that the acceleration is greater than a preset acceleration threshold. When casting begins, the fishing rod and fishing reel are swung and the acceleration sensor is electrically connected to the controller 900, so when it detects that the acceleration is greater than a preset acceleration threshold, it is determined that the casting and line-releasing state has been entered. Subsequently, when it is detected that the continuous line-releasing process has stopped, the casting and line-releasing state is terminated and the system switches to the winding state. The preset acceleration threshold may be set according to the specific application scenario, or an appropriate value may be determined by a person skilled in the art through a finite number of experiments, and this application is not limited thereto.

[0156] As another possible alternative, if the guide ring speed measuring mechanism 600 is equipped with an image-based speed measuring sensor, the rotation direction detection device may be implemented by this image-based speed measuring sensor. The rotation direction of the spool 200 can be determined from the direction of movement of the fishing line detected by this image-based speed measuring sensor, and reliability can be improved by using this image-based speed measuring sensor as a rotation direction detection device.

[0157] As another possible alternative, if the main rotational speed sensor used also has a rotational direction detection function, this main rotational speed sensor can also be used as a rotational direction detection device to improve reliability. Specifically, the rotational speed sensor with the rotational direction detection function described above is an imaging-based speed measurement sensor, resolver, etc., and is a method disclosed in Chinese patent document application number CN201821109629.X, in which at least two detection marks of different sizes are placed at intervals on the rotating object to be measured, the detection sensor is positioned to contact or not contact the rotating object to be measured, and the rotational direction is determined from the order of the detected signal widths.

[0158] In short, the rotation direction detection device may be implemented by detecting the rotation direction of the spool using any known method, by detecting the mechanical state of the fishing reel's line release or winding using any known method, by detecting acceleration information during casting or winding of the fishing reel using any known method, or by detecting speed information of the fishing line or the rotation speed value of the spool using any known method.

[0159] (5) In the case of Example 1, in some embodiments, the controller 900 processes and stores the conversion relation parameters as follows.

[0160] The system pre-stores conversion parameters corresponding to multiple thickness standards of fishing line in memory, and the fishing reel body 100 is further provided with selection buttons electrically connected to the controller 900, allowing users to select and set the appropriate conversion parameters when fishing. Alternatively, the controller 900 is further provided with a wireless communication module that wirelessly connects to an external setting terminal, allowing users to select and set the appropriate conversion parameters via the external setting terminal when fishing.

[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. Further, as equivalent devices, it refers to devices that can achieve the same functions as above by methods such as pressing a button, similar to 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] By pre-storing common fishing line parameters and selecting the appropriate ones during use, the complexity of parameter setting can be further reduced.

[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 up 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 the formula 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 used 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, so 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 there is a known functional relationship

Number

Number

[0167] In another processing method, as an alternative to the method that automatically calculates and stores the conversion relationship parameters described above, the tangential velocity V is used when winding up the fishing line. t Let be the dependent variable, and the number of turns N r and rotational speed V r Using V as the independent variable, a regression equation was constructed, comparing the guide ring passage speed V and the number of winding turns N, measured at different time points. r , and rotational speed V r Multiple sample data, including the above, are taken to form a data sample group, regression analysis is performed, and the regression model and parameters are stored as conversion relation parameters in a readable and writable memory. When the fishing line is released, the tangential velocity calculation module 913 calculates the number of winding turns N r , and rotational speed V r Input the tangential velocity V into the regression model. t Calculate.

[0168] As an alternative processing method, as an alternative to the method that automatically calculates and stores the conversion relation parameters mentioned above, when winding up the fishing line, specifically, r=V t / V r As shown, different winding turn counts N r Corresponding tangential velocity V t and rotational speed V r The conversion ratio value r is calculated, and as shown in Figure 14, the number of winding turns in a series N r The corresponding conversion ratio value r is created as a conversion relationship table and stored in memory. When releasing the fishing line, the tangential velocity calculation module 913 calculates the number of winding turns N rBased on this, query the ratio value r corresponding to the above conversion relationship table, and further, the rotational speed V r From tangential velocity V t =r*V r Calculate.

[0169] By automatically calculating and storing conversion-related parameters, the system achieves precise brake control without requiring pre-setting of operations.

[0170] (7) In addition to the embodiment described in (6) above, in some embodiments, the controller 900 determines whether or not to perform a processing step of calculating and storing conversion relation parameters when the spool winds up the fishing line, using one of the following methods.

[0171] One approach is to automatically perform the above processing steps each time the spool winds up fishing line.

[0172] In an alternative determination method, the fishing reel body is provided with a setting button electrically connected to the controller, which controls whether or not to execute the above processing step. Alternatively, the controller 900 is further provided with a wireless communication module that wirelessly connects to an external operating terminal, which controls whether or not to execute the above processing step. When it is necessary to change the fishing line or update the conversion relationship parameters, the operator sends a signal to the controller to re-execute the above processing step in the set manner. The external operating terminal may be a smartphone app, a wireless remote control, etc., and this invention is not limited thereto.

[0173] In one other determination method, the above processing step is executed when it is detected that the fishing line winding turn count value on the spool is below the turn threshold, or that the conversion relation parameter is not stored. When replacing with a new fishing line, or when it is necessary to rewind the fishing line, the winding turn count value is below the turn threshold, and in this case, the above processing step is executed. In some embodiments, the range of the turn threshold value is 0 to 1200 turns, in some embodiments, the range of the turn threshold value is 0 to 300 turns, in some embodiments, the range of the turn threshold value is 0 to 50 turns, and in some embodiments, the range of the turn threshold value is 0 to 10 turns. The value of this turn threshold can be set to suit different application scenarios, and this application is not limited thereto.

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

[0175] If the linear velocity sensor has a photoelectric sensor or an image sensor, a light leakage notch 401 is provided between or at the ends 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 it may be a non-penetrating recess on the inner wall of the guide ring. Figure 17 is a schematic cross-sectional view of an open hole provided between the ends of the guide ring, and Figure 18 is a schematic cross-sectional view of a recess provided at the end of the guide ring. The light leakage notch 401 is provided to reduce light reflection in the background portion of the fishing line to be detected, thereby reducing interference from reflected light from the inner wall of the guide ring 400 to the acquisition of the fishing line signal by the light receiving unit 602, and improving the stability of the acquisition of the fishing line signal by the light receiving unit 602. Based on this principle, a person skilled in the art can realize light leakage notches in various different positions, shapes, or structural forms.

[0176] When the linear velocity sensor is implemented as a magnetic sensor, it is a magnetic head 610 protruding from the inner wall of the guide ring 400, and a positioning support portion 410 is provided inside the guide ring, which maintains a gap of 0 or a stable operating gap between the fishing line inside the guide ring and the magnetic head 610. In some embodiments, the specific selectable range of the operating gap value is 0 to 2 mm, and the value of the operating gap value can be adapted and set according to different application scenarios, and those skilled in the art may also determine a suitable value through a finite number of experiments, but this application is not limited thereto. At least one positioning support portion 410 is provided and may be implemented in various forms, for example, by a protrusion on the inner wall of the guide ring 400, or by a support fixed inside the guide ring 400 that can prevent the fishing line from moving away from the magnetic head 610, but this application is not limited thereto. One specific positioning support portion is shown in Figure 19. The positioning support 410 works in cooperation with the magnetic head 610 protruding from the inner wall of the guide ring 400 to maintain a gap of zero or a stable operating gap between the fishing line and the magnetic head 610, thereby improving the stability of magnetic signal reading by the magnetic head 610. Based on this principle, those skilled in the art can realize positioning support parts in various different positions, shapes, or structural forms.

[0177] (9) In some embodiments of Embodiment 1 or Embodiment 2, the main rotational speed sensor in the rotation detection mechanism may be implemented by a photoelectric sensor, a Hall sensor, an imaging-based speed measurement sensor, an electromagnetic sensor, or an inductive sensor. Here, an electromagnetic sensor specifically means a sensor that acquires a signal in response to the induced electromotive force in the detection coil, and an inductive sensor specifically means a sensor that acquires a signal in response to a change in the inductance or inductive reactance in the detection coil.

[0178] If the main rotational speed sensor in the rotation detection mechanism is an electromagnetic or inductive sensor, at least one individual coil in the brake coil 801 may also be used as a speed measuring coil. The controller 900 is electrically connected to the speed measuring coil and calculates the rotor position signal of the spool from the electrical signal containing rotor position information in the speed measuring coil. The controller extracts a rotational pulse signal from this rotor position signal, which is specifically implemented as follows.

[0179] If the main rotational speed sensor is an electromagnetic sensor, the magnetic flux in the speed measurement coil changes when the rotor is in a different rotational position, which generates an induced electromotive force. 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 rotational speed sensor is an inductive sensor, the inductance of the speed measuring coil changes when the rotor is in a different rotational position due to the protruding pole effect. The controller 900 injects a high-frequency voltage signal into the speed measuring coil, and the high-frequency current in the speed measuring coil responds to the change in inductance. The controller detects the high-frequency current response due to the protruding pole and decouples the rotor position signal. In some embodiments, the high-frequency voltage may be selected from the range of 50mV to 2000mV, and the frequency of the high-frequency voltage may be selected from the range of 100Hz to 50KHz. The above voltage and frequency parameters may be selected to suit different application scenarios, or suitable values ​​may be selected by a person skilled in the art through a finite number of experiments, and this application is not limited thereto.

[0181] By employing the above-mentioned electromagnetic or inductive sensor detection method and using some or all of the brake coils as rotational speed sensors, the complexity of the system can be reduced, reliability improved, and manufacturing costs lowered.

[0182] Detecting the motor rotor position signal by detecting the induced electromotive force, inductance, or impedance of the motor coil is a conventionally known detection technique, for example, using a speed measuring generator, resolver, and bra This method has been widely applied in applications such as rotor position detection of silless motors, specifically using electromotive force detection methods or high-frequency injection methods. For those skilled in the art, detecting the rotor position signal of a motor and extracting information such as rotational pulses and rotational speed based on the above principle is a well-known prior art.

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

[0184] (10) In some embodiments, the guide ring speed measuring mechanism 600 may be implemented by the following line speed measuring device.

[0185] As shown in Figure 19, according to one embodiment of the present invention, the line speed measuring device comprises a linear speed sensor comprising a projection light source 601 and a light receiving unit 602, with guide rings 450 provided on both sides of its detection window, the linear speed sensor and the guide rings fixedly assembled to a connecting device, the line to be measured passing through the guide rings and being guided by the guide rings, and a measurable distance being 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 measuring device corresponds to the guide ring speed measuring mechanism 600.

[0186] Here, "fixed assembly" specifically refers to connection methods that fix the components together as a single unit by one or more methods, such as screw connections, snap-fit ​​connections, riveting connections, hoop connections, binding connections, welding, bonding, or snap-fit ​​connections, where the connected parts cannot move relative to each other, and includes both removable and / or non-removable connections. It also includes manufacturing methods that form multiple parts as a single unit, such as casting, injection molding, or press molding. Furthermore, it includes screw drive connections, where the nut and screw maintain a fixed relative positional relationship during speed measurement operation.

[0187] Here, "connecting device" specifically refers to a combination of one or more components on which multiple fixedly assembled functional components are mounted, and which maintain a fixed relative positional relationship between the assembled functional components during speed measurement operation.

[0188] Here, "measurable distance" refers to the range of distance between the linear velocity sensor and the string being measured that is necessary to maintain a stable operating state. The measurable distance is determined by the specific application scenario, and those skilled in the art can determine the measurable distance based on theoretical calculations or empirical data, or they can determine it 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 a connecting device to fix the linear velocity sensor and the guide ring together as a single unit via the housing. In some embodiments, the linear velocity sensor may further be provided with a light-transmitting sealing member in the detection window to protect the detection element.

[0190] Alternatively, as shown in Figure 20, one guide ring may be permanently attached to the fishing rod, the linear velocity sensor may be fixed together with the other guide ring, and then permanently attached to the fishing reel. Alternatively, the linear velocity sensor and the other guide ring may be permanently attached to the fishing reel body, and the fishing rod and fishing reel body may be used as a connecting device. In addition, the linear velocity sensor and the guide ring may be permanently attached to the fishing rod, and the fishing rod may be used as a connecting device.

[0191] In short, the function of a line speed measuring device can be realized if the linear speed sensor and the guide ring maintain a relatively fixed positional relationship during speed measurement operation, the guide rings on both sides of the linear speed sensor detection window guide the line being measured, and a measurable distance is maintained between the line being measured and the linear speed sensor. As long as the above requirements are met, the linear speed sensor and the guide ring can be flexibly combined using a connecting device, and all of these are feasible to those skilled in the art.

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

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

[0194] Once steps S1a, S1b, and S1c are executed in parallel, the process 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, proceed to step S3, and the number of winding turns N is stored in memory. r The results are accumulated. Then, proceed to step S4, and winding turn count N r , rotational speed V r The conversion relationship parameters are determined from the guide ring passage speed V. Furthermore, the process proceeds to step S5, where the above conversion relationship parameters are stored in memory.

[0196] If it is determined in step S2 that the rotation direction of the spool 200 is the direction in which the fishing line is released, the process proceeds to step S6, and the number of winding turns N is stored in memory. r The amount is reduced by a certain factor.

[0197] Next, proceed to step S7, winding turn count N r , rotational speed V r And from the corresponding conversion relation parameters, the tangential velocity V t Calculate.

[0198] Next, proceed to step S8, tangential velocity V t The system compares this with the speed V passing through the guide ring and calculates a correction signal.

[0199] Next, the process proceeds to step S9, where the current in the brake coil 801 is controlled based on the correction signal, thereby achieving control of the braking force.

[0200] Once step S5 or step S9 is completed, the process proceeds to step S10 to determine whether or not the rotation of the spool 200 has stopped.

[0201] If the rotation of the spool 200 has not stopped, the process proceeds 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, the process terminates.

[0202] Process flowcharts for several other embodiments are shown.

[0203] As shown in Figure 10, in addition to the flowchart described above, a step S3a is added between step S3 and step S4 to determine whether or not to calculate the conversion relation parameters.

[0204] If conversion relation parameters need to be calculated, proceed to step S4.

[0205] If the conversion relation parameters are not calculated, proceed to step S10.

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

[0207] The steps and / or operations in the flowcharts and accompanying drawings described herein are for illustrative purposes only. Aside from those exemplified above, various modifications to these steps and / or operations are possible without departing from the spirit of the Application. For example, the steps may be performed in a different order, steps may be added, deleted, or modified, or the actions within a block may be altered.

[0208] This application is not limited to the exact structures already described above and shown in the attached drawings, and it is clear that the embodiments described above are only a selection of embodiments, not all embodiments of this application. Conversely, the embodiments of this application include all variations, modifications, substitutions, alterations and equivalents that fall within the spirit and essence of the attached claims, and the relevant parameters and variables are merely examples to illustrate the conceptual principles of this application, and any person skilled in the art can achieve similar functions without departing the scope of this application by uniformly converting them to other forms of expression based on known mathematical and physical knowledge.

[0209] The descriptions of the left, right, front, and rear directions in the embodiments of this invention all use a fishing reel in which the handle is turned on the right side from the operator's perspective as an example. For a fishing reel in which the handle is turned on the left side, the same function can be achieved simply by 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 can be individually physically separated. Each functional unit may be integrated into a single processing module, each unit may exist individually in physical form, or two or more units may be integrated into a single module.

[0211] In embodiments of the present application, one or more components or steps can be implemented by software or firmware stored in memory and executed by an appropriate instruction execution system. For example, in one embodiment, they are implemented in hardware, but in another embodiment, they may be implemented by executing a program in memory using any one or a combination of art known technologies, such as discrete logic circuits having logic gate circuits configured to implement logical functions for data signals, application-specific integrated circuits having appropriate combinational logic gate circuits, general-purpose processors (CPUs), programmable gate arrays (PGAs), field-programmable gate arrays (FPGAs), etc.

[0212] In the description of the embodiments of this application, the light source that emits or converts light into photoelectric light may be a laser light or a conventional light source, and may be visible light, infrared light or ultraviolet light, and this application is not limited thereto. [Explanation of Symbols]

[0213] 100 Fishing reel body 200 Spool 300 Clutch switch 400 Guide ring 500 Handle 600 Guide ring speed measuring 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 part 450 Guide ring 601 Projection light source 602 Light receiving part 603 First lens 604 Second lens 605 Third lens 606 Beam splitter 701 Rotation speed reflection mark 801 Brake coil 802 Magnetic brake component 803 Connecting component 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 passage speed calculation module 913 Tangential speed calculation module 914 ΔV calculation module 915 Lf calculation module 1000 Fishing line

Claims

1. An electromagnetic brake device for a fishing reel, wherein the fishing reel equipped with the electromagnetic brake device comprises a guide ring and a spool that rotates to wind up or release fishing line, the electromagnetic brake device for the fishing reel comprises a brake mechanism, the brake mechanism comprises a brake coil and a magnetic brake member arranged opposite each other, one of the magnetic brake member and the brake coil rotates integrally with the spool to form a rotor, the other is arranged on the body of the fishing reel to form a stator, and when releasing fishing line, the magnetic brake member and the brake coil rotate relative to each other and act toward generate electromagnetic induction to brake the spool. The aforementioned fishing reel electromagnetic brake device is A linear velocity sensor is provided on the inner wall of the guide ring, and a guide ring speed measuring mechanism is configured to detect speed information of the fishing line passing through the guide ring, A rotation detection mechanism is provided on the body of the fishing reel and includes a main rotation speed sensor and a rotation direction detection device, and is configured to detect rotation information of the spool, including rotation pulses and rotation direction. A controller provided on the body of the fishing reel, comprising a processor, memory, current control unit, and I / O interface, and electrically connected to the guide ring speed measuring mechanism and the rotation detection mechanism via the I / O interface, wherein the current control unit is electrically connected to the brake coil, and the memory records and stores the conversion relationship parameters of the spool winding turns, rotation speed, and tangential speed, further comprising the controller, When the fishing line is released, the controller will From the speed information, the speed through which the guide ring passes is calculated; from the rotation information, the rotation direction, rotation speed, and winding turn count value of the spool are calculated; the winding turn count value is stored in the memory; if the rotation direction of the spool is the direction in which the fishing line is released, the tangential speed is calculated from the winding turn count, rotation speed, and the conversion relationship parameters of the spool; a correction signal is calculated from the tangential speed and the current speed through which the guide ring passes to correct the rotation speed of the spool; and according to the correction signal, the electromagnetic induction current in the brake coil is controlled via the current control unit, The braking force of the spool is controlled to achieve closed-loop control. A fishing reel electromagnetic brake device characterized by the following features.

2. The guide ring speed measuring mechanism detects the speed information and causes the controller to process it, and as an implementation method, The guide ring speed measuring mechanism further comprises a projection light source and a photoelectric sensor, wherein the fishing line used has alternating sections of different reflectances having fixed mark lengths, the projection light source illuminates the fishing line, the photoelectric sensor converts the detected reflected light signal into an electrical pulse signal, and the electrical pulse signal and the fixed mark length are used to calculate the speed through which the guide ring passes, or The guide ring speed measuring mechanism further comprises a projection light source and an image sensor, wherein the projection light source illuminates the fishing line, the image sensor acquires local image information of the moving fishing line at regular time intervals, and the controller compares and analyzes the local images over time and processes them, and uses the distance the local images have moved at regular time intervals to calculate the speed through which the guide ring passes, or The guide ring speed measuring mechanism is a magnetic sensor, and the fishing line used has magnetic marks with fixed mark lengths arranged alternately. The magnetic sensor converts the detected magnetic signal into an electrical pulse signal, and the electrical pulse signal and the fixed mark lengths are used to calculate the speed at which the guide ring passes. The electromagnetic brake device for fishing reels according to feature 1.

3. The aforementioned controller, The current control unit is a switching element, and the correction signal controls the on / off state of the switching element by switching it on or off, 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 cycle of the PWM signal, or The current control unit is a current intensity adjustment element, and the current intensity within the current intensity adjustment element is adjusted by changing the strength of the correction signal. Control of the electromagnetic induction current in the brake coil is achieved by any one of the following: The electromagnetic brake device for fishing reels according to claim 1 or 2, characterized in that it is as described above.

4. The closed-loop control described above is The speed through the guide ring is used as the input target control value, and the tangential speed is used as the output controlled value and feedback value, or The set allowable speed difference threshold is used as the input target control value, and the difference between the tangential speed and the speed passing through the guide ring is used as the output controlled value and feedback value, or The set allowable floating thread length threshold is used as the input target control value, and the floating thread length is used as the output controlled value and feedback value, or The set integral difference control value is used as the input target control value, and the velocity integral difference value is used as the output controlled value and feedback value. It will be achieved by one of the following. The electromagnetic brake device for fishing reels according to feature 1.

5. The main rotational speed sensor is a photoelectric sensor, a Hall sensor, an imaging-based speed measuring sensor, an electromagnetic sensor, or an inductive sensor, and the electromagnetic sensor or the inductive sensor is realized by having at least one individual coil in the brake coil also serve as a speed measuring coil. The electromagnetic brake device for fishing reels according to feature 1.

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