Fishing reel electromagnetic braking device, fishing line and speed measuring mechanism

Abstract

The invention discloses a fishing reel, a fishing line and a speed measuring mechanism. The fishing reel comprises a fishing reel electromagnetic braking device for winding and unwinding the fishing line in a line winding and rotating mode. The electromagnetic braking device for the fishing reel comprises a braking mechanism, a guide ring speed measuring mechanism, a rotation detecting mechanism and a controller, wherein the braking mechanism is provided with a braking coil and a magnetic braking piece. The brake force of the reel is controlled by detecting the line outgoing speed of the reel and the tangent speed of the reel for rotating and releasing the fishing line in real time and comparing the difference between the two speeds, closed-loop control is achieved, and therefore the stability of the brake effect is improved. The electromagnetic braking device for the fishing reel can automatically correct braking force and automatically set storage parameters, and the complexity of parameter setting is reduced.

Description

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

[0001] This disclosure claims priority to Chinese patent application number 202210806287.1, filed with the Patent Office of China on July 10, 2022, entitled “Electromagnetic Braking Device for Fishing Reel and Fishing Line,” the entire contents of which are incorporated herein by reference;

[0002] This disclosure claims priority to Chinese patent application number 202210893706.X, filed with the Patent Office of China on July 27, 2022, entitled “Electromagnetic Braking Device for Fishing Reel and Fishing Line,” the entire contents of which are incorporated herein by reference;

[0003] This disclosure claims priority to Chinese Patent Application No. 202310119377.8, filed with the Patent Office of China on February 16, 2023, entitled “Electromagnetic Braking Device for Fishing Reel, Fishing Line and Speed ​​Measuring Mechanism,” the entire contents of which are incorporated herein by reference;

[0004] This disclosure claims priority to the Chinese patent application filed with the China Patent Office on March 6, 2023, with application number 202310206146.0 and invention name “Wire Rope Speed ​​Measuring Device”, the entire contents of which are incorporated by reference into this application. Technical Field

[0005] The present application relates to fishing equipment, and in particular to an electromagnetic braking device for a fishing reel, a fishing line, and a speed measuring mechanism. Background Art

[0006] When casting a bait from a fishing reel, the inertia of the bait causes the fishing line to fly, pulling it out of the reel outlet, driving the reel to rotate and release the line. The speed of the bait's flight is reduced by air resistance and friction with the fishing line. When the speed at which the reel releases the line due to inertial rotation exceeds the speed at which the line is pulled out of the reel outlet, some of the line becomes trapped inside the reel, forming floating line, which can lead to line tangles. Therefore, fishing reels are equipped with a device that brakes and decelerates the reel to prevent line tangles during casting. In the electromagnetic braking devices disclosed in Chinese Patent Publication Nos. CN1965645B and CN110432236A, when the reel rotates and releases the line, a magnetic rotor (or rotor coil) that rotates integrally with the reel rotates relative to a stator coil (or magnetic stator) mounted on the reel body. The reel is braked and decelerated by controlling the induced current in the stator coil (or rotor coil) using preset parameters and a program. Technical issues

[0007] The inventors discovered that due to the constant changes in wind speed, bait, and fishing line in actual fishing scenarios, the attenuation pattern of the line-out speed of the fishing line being pulled out of the fishing reel during the casting process is subject to interference from complex factors and is uncertain. Traditional technologies do not detect this line-out speed, nor can they dynamically monitor the matching between the line-out speed and the speed at which the reel rotates to release the fishing line. They only perform open-loop control of the reel braking force based on pre-set procedures and parameters, and are unable to dynamically correct the reel speed that deviates from the appropriate value, resulting in unstable braking effect. When the braking force is insufficient, the reel speed is too fast, causing the fishing line to tangle, while excessive braking force will consume additional kinetic energy of the bait and shorten the bait's flight distance. In addition, the electromagnetic brake device of the traditional fishing reel requires complex parameter settings in advance. Technical Solutions

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

[0009] In a first aspect, an embodiment of the present application provides an electromagnetic brake device for a fishing reel, wherein the fishing reel equipped with the electromagnetic brake device comprises a line guide ring and a spool for reeling and releasing a fishing line in a rotating manner, the electromagnetic brake device for the fishing reel comprising a brake mechanism, the brake mechanism comprising a brake coil and a magnetic brake member arranged in opposite directions, one of the magnetic brake member and the brake coil rotating integrally with the spool to form a rotor, and the other of the magnetic brake member and the brake coil being arranged on the fishing reel body to form a stator, when releasing the line, the magnetic brake member and the brake coil rotating relative to each other, and interacting with each other to generate electromagnetic induction to brake the spool, the electromagnetic brake device for the fishing reel further comprising:

[0010] A guide ring speed measuring mechanism, which is a line speed sensor provided on the inner wall of the outlet line guide ring and configured to detect speed information of the fishing line passing through the outlet line guide ring;

[0011] a rotation detection mechanism, which is provided on the fishing reel body and includes a main speed sensor and a rotation direction detection device, and is configured to detect rotation information of the spool, wherein the rotation information includes information of a rotation pulse and a rotation direction;

[0012] A controller, disposed on the fishing reel body, comprising a processor, a memory, a current control unit, and an I / O interface, wherein the controller is electrically connected to the guide ring speed measuring mechanism and the rotation detection mechanism via the I / O interface, the current control unit is electrically connected to the brake coil, and the memory records and stores parameters of a conversion relationship between the number of winding turns, the rotational speed, and the tangential speed of the spool;

[0013] When paying out the line, the controller controls the braking force of the winding drum in the following manner to achieve closed-loop control: the loop speed is calculated based on the speed information; the rotation direction, rotation speed and winding turns count of the winding drum are calculated based on the rotation information, and the winding turns count value is stored in the memory; when the rotation direction of the winding drum is paying out the line, the tangent speed is calculated based on the winding turns, rotation speed and the conversion relationship parameters of the winding drum, and a correction signal for correcting the winding drum speed is calculated based on the tangent speed and the loop speed at that time, and the electromagnetic induction current in the brake coil is controlled through the current control unit based on the correction signal.

[0014] Optionally, in the embodiment of the first aspect, the guide ring speed measuring mechanism detects the speed information and transmits it to the controller for processing, which is implemented in any one of the following ways:

[0015] The guide ring speed measuring mechanism further includes a projection light source and a photoelectric sensor, and the fishing line used by it is separated by color segments of different reflectivity with a fixed mark length. The projection light source illuminates the fishing line, and the photoelectric sensor converts the detected reflected light signal into an electric pulse signal, and the electric pulse signal and the fixed mark length are used to calculate the speed through the ring; or, the guide ring speed measuring mechanism further includes a projection light source and an image sensor, and the projection light source illuminates the fishing line, and the image sensor picks up local image information of the moving fishing line at a fixed time interval, and the controller performs a front-to-back comparison analysis on the local image, and the distance moved by the local image at the fixed time interval is used to calculate the speed through the ring; or, the guide ring speed measuring mechanism is a magnetic sensor, and the fishing line used by it is separated by magnetic marks with a fixed mark length, and the magnetic sensor converts the detected magnetic signal into an electric pulse signal, and the electric pulse signal and the fixed mark length are used to calculate the speed through the ring.

[0016] Optionally, in the embodiment of the first aspect, the controller controls the electromagnetic induction current in the brake coil in any one of the following ways:

[0017] The current control unit is a switching element, and the correction signal controls the connection and disconnection of the switching element by switching on and off; or, the current control unit is a switching element, and the correction signal controls the connection and disconnection time ratio 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 the strength.

[0018] Optionally, in the embodiment of the first aspect, the closed-loop control is implemented in any one of the following ways:

[0019] The loop speed is used as the input target control variable, and the tangent speed is used as the output controlled variable and feedback variable; or, the set allowable speed difference threshold is used as the input target control variable, and the difference between the tangent speed and the loop speed is used as the output controlled variable and feedback variable; or, the set allowable floating line length threshold is used as the input target control variable, and the floating line length is used as the output controlled variable and feedback variable; or, the set integral difference control value is used as the input target control variable, and the speed integral difference is used as the output controlled variable and feedback variable.

[0020] Optionally, in the embodiment of the first aspect, the main speed sensor is a photoelectric sensor, a Hall sensor, an aberration speed sensor, an electromagnetic sensor, or an inductive sensor.

[0021] A second aspect of the present application provides a fishing line having a signal mark interval with a fixed mark length, wherein the signal mark can be detected by a guide ring speed measuring mechanism of a fishing reel and converted into an electric pulse signal, and the electric pulse signal and the fixed mark length are used to calculate the speed through the ring; the signal mark interval is formed by color segments with different reflectivity, and the guide ring speed measuring mechanism has a projection light source and a photoelectric sensor.

[0022] An embodiment of the third aspect of the present application provides a fishing line having a signal mark interval with a fixed mark length, wherein the signal mark can be detected by a guide ring speed measuring mechanism of a fishing reel and converted into an electric pulse signal, and the electric pulse signal and the fixed mark length are used to calculate the speed through the ring; magnetic material is attached to the fishing line, the signal mark interval is formed by a recorded series of magnetic signals, and the guide ring speed measuring mechanism has a magnetic sensitive sensor.

[0023] A fourth aspect of the present application provides a speed measuring mechanism, which is a linear velocity sensor disposed on the inner wall of a line guide ring. The speed measuring mechanism is configured to detect speed information of a fishing line passing through the line guide ring, and is implemented in any one of the following ways:

[0024] The speed measuring mechanism further includes a projection light source and a photoelectric sensor, the fishing line used is separated by color segments of different reflectivity with a fixed mark length, the projection light source illuminates the fishing line, and the photoelectric sensor converts the detected reflected light signal into an electric pulse signal, and the electric pulse signal and the fixed mark length are used to calculate the speed through the loop; or, the speed measuring mechanism further includes a projection light source and an image sensor, the projection light source illuminates the fishing line, and the image sensor picks up local image information of the moving fishing line at fixed time intervals, the local image is compared and analyzed before and after, and the distance moved by the local image at the fixed time interval is used to calculate the speed through the loop; or, the speed measuring mechanism is a magnetic sensor, the fishing line used is separated by magnetic marks with a fixed mark length, and the magnetic sensor converts the detected magnetic signal into an electric pulse signal, and the electric pulse signal and the fixed mark length are used to calculate the speed through the loop.

[0025] Optionally, in the embodiment of the fourth aspect: when the speed measuring mechanism has a photoelectric sensor or an image sensor, the speed measuring mechanism also has a light escape notch arranged on the inner wall of the line outlet guide ring, and the detection direction of the linear speed sensor is facing the light escape notch; when the speed measuring mechanism is realized by a magnetic sensor, the magnetic sensor is a magnetic head protruding from the inner wall of the line outlet guide ring, and the speed measuring mechanism also has a positioning support arranged on the inner wall of the line outlet guide ring, and the positioning support keeps the gap between the fishing line in the line outlet guide ring and the magnetic head at 0 or maintains a stable working gap.

[0026] An embodiment of the fifth aspect of the present application provides a rope speed measuring device, including a linear velocity sensor, and guide rings are respectively provided on both sides of the detection window of the linear velocity sensor. The linear velocity sensor and the guide rings are fixedly assembled on a connecting device, and the measured rope passes through the guide rings. The guide rings guide the measured rope so that a measurable distance is maintained between the measured rope and the linear velocity sensor; the rope speed measuring device is configured as a fishing reel to measure the reeling and releasing linear velocity of the fishing line, and the measured rope is a fishing line; the linear velocity sensor is a reflective velocity sensor or an aberration velocity sensor.

[0027] Optionally, in the embodiment of the fifth aspect: the connecting device is the shell of the linear velocity sensor, and the linear velocity sensor and the guide ring are fixedly connected as a whole through the shell; or, the connecting device is at least one of a fishing rod and a fishing reel, and the linear velocity sensor and the guide ring maintain a relatively fixed position relationship in the speed measuring working state.

[0028] In a sixth aspect, an embodiment of the present application provides a fishing reel electromagnetic brake device, which is applied to a fishing reel having a line guide ring and a spool. The fishing reel electromagnetic brake device includes a brake coil and a magnetic brake member that rotates integrally with the spool. The brake coil is fixedly disposed on the fishing reel body. When the line is released, the brake coil brakes the spool through electromagnetic induction. The fishing reel electromagnetic brake device also includes:

[0029] a guide ring speed measuring mechanism, which is a line speed sensor disposed at the line outlet of the fishing reel and is configured to detect speed information of the fishing line passing through the outlet guide ring, wherein the fishing line has a sequence of spaced signal markers, and the sequence of signal markers matches the geometric parameters of the spool, such that the interval length of the signal marker sequence increases or decreases proportionally with the increase or decrease in the winding diameter of the fishing line on the spool, and the ratio between the interval length of the signal marker sequence and the corresponding winding diameter meets a preset value;

[0030] a rotation detection mechanism, which is provided on the fishing reel body and includes a rotation speed sensor configured to detect rotation speed information of the spool;

[0031] a controller, which is provided on the fishing reel body and includes a processor, a memory, and a current control unit, the controller being electrically connected to the guide ring speed measuring mechanism and the rotation detection mechanism, the current control unit being electrically connected to the brake coil, and the memory storing the preset value;

[0032] When paying out the line, the controller performs closed-loop control in the following manner: the controller calculates the number of signal marks of the fishing line passing through the outlet and the rotation angle of the winding drum within the same time period, calculates the loop speed and the tangent speed based on the number of signal marks, the rotation angle of the winding drum and the preset value, and calculates the correction signal for correcting the winding drum rotation speed, and controls the electromagnetic induction current in the brake coil through the current control unit based on the correction signal.

[0033] Optionally, in the embodiment of the sixth aspect, the line speed sensor is arranged on the inner wall or side of the fishing reel line guide ring, and its detection direction is directed to the fishing line passing through the line outlet, and the guide ring speed measuring mechanism detects the speed information and sends it to the controller for processing, which is implemented in any one of the following ways: the guide ring speed measuring mechanism further includes a projection light source and a photoelectric sensor, and the signal mark sequence is formed by color segments with different reflectivity at intervals, the projection light source illuminates the fishing line, and the photoelectric sensor converts the detected reflected light signal into an electrical pulse signal; or, the guide ring speed measuring mechanism is a magnetic sensor, and the signal mark sequence is formed by magnetic marks at intervals, and the magnetic sensor converts the detected magnetic signal into an electrical pulse signal.

[0034] Optionally, in the embodiment of the sixth aspect, the controller controls the electromagnetic induction current in the brake coil in any one of the following ways: the current control unit is a switching element, and the correction signal controls the connection and disconnection of the switching element in an on-off switching manner; or, the current control unit is a switching element, and the correction signal controls the duration of the connection and disconnection of the switching element in a manner of 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 in a manner of changing strength.

[0035] Optionally, in the embodiment of the sixth aspect, the closed-loop control is implemented in any one of the following ways: using the loop speed as the input target control quantity, and the tangent speed as the output controlled quantity and feedback quantity; or, using the set allowable speed difference threshold as the input target control quantity, and the difference between the tangent speed and the loop speed as the output controlled quantity and feedback quantity; or, using the set allowable floating line length threshold as the input target control quantity, and the floating line length as the output controlled quantity and feedback quantity; or, using the set integral difference control value as the input target control quantity, and the speed integral difference as the output controlled quantity and feedback quantity.

[0036] Optionally, in the embodiment of the sixth aspect, the rotation speed sensor is a photoelectric sensor, a Hall sensor, an aberration speed sensor, an electromagnetic sensor, or an inductive sensor.

[0037] The seventh aspect embodiment of the present application provides a fishing line, which is matched with the fishing reel electromagnetic braking device described in any one of the sixth aspects.

[0038] In an eighth aspect, an embodiment of the present application provides a fishing reel electromagnetic brake device, which is applied to a fishing reel having a line guide ring and a spool. The fishing reel electromagnetic brake device includes a brake coil and a magnetic brake member that rotates integrally with the spool. The brake coil is fixedly disposed on the fishing reel body. When the line is released, the brake coil brakes the spool through electromagnetic induction. The fishing reel electromagnetic brake device also includes:

[0039] A guide ring speed measuring mechanism, which is a line speed sensor provided at the line outlet of the fishing reel and configured to detect the line passing speed;

[0040] a spool aberration speed measuring device, which is disposed on the fishing reel body and has a detection direction pointing toward the surface fishing line of the spool, and is configured to detect the tangential speed of the surface fishing line;

[0041] a controller, which is provided on the fishing reel body and includes a processor, a memory and a current control unit, the controller being electrically connected to the guide ring speed measuring mechanism, and the current control unit being electrically connected to the brake coil;

[0042] When paying out the line, the controller performs closed-loop control. The controller calculates a correction signal for correcting the winding drum speed based on the loop speed and the tangential speed, and controls the electromagnetic induction current in the brake coil through the current control unit based on the correction signal.

[0043] Optionally, in the embodiment of the eighth aspect, the line speed sensor is arranged on the inner wall or side of the line guide ring of the fishing reel, so that the detection direction is directed to the fishing line output by the line guide ring, and the guide ring speed measuring mechanism detects the speed information and sends it to the controller for processing, which is implemented in any one of the following ways: the guide ring speed measuring mechanism further includes a projection light source and a photoelectric sensor, the fishing line used is separated by color segments of different reflectivity with a fixed mark length, the projection light source illuminates the fishing line, and 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 the ring; or Alternatively, the guide ring speed measuring mechanism further includes a projection light source and an image sensor, the projection light source illuminates the fishing line, the image sensor picks up local image information of the moving fishing line at fixed time intervals, the controller performs front-to-back comparison analysis on the local image, and the distance the local image moves at the fixed time interval is used to calculate the loop speed; or, the guide ring speed measuring mechanism is a magnetic sensor, the fishing line used is separated by magnetic marks of fixed mark lengths, the magnetic sensor converts the detected magnetic signal into an electric pulse signal, the electric pulse signal and the fixed mark length are used to calculate the loop speed. Beneficial effects

[0044] Compared with conventional technologies, the beneficial effects of the present application are as follows: the fishing line and speed measuring mechanism of the present application can detect the outlet speed of the fishing reel; and the electromagnetic braking device of the fishing reel of the present application controls the braking force according to the matching condition between the outlet speed and the tangential speed of the reel rotating to release the fishing line, and promptly corrects the reel speed deviation to achieve closed-loop control, thereby improving the stability of the fishing reel braking. In addition, the embodiments provided by the present application can also reduce the complexity of parameter setting. Details of one or more embodiments of the present application are set forth in the following drawings and descriptions. Other features, objects and advantages of the present application will become apparent from the specification, drawings and claims. BRIEF DESCRIPTION OF THE DRAWINGS

[0045] FIG1 is a perspective view of the appearance of a fishing reel in the prior art.

[0046] FIG2 is an exploded perspective view of a conventional fishing reel brake mechanism.

[0047] FIG3 is a schematic diagram showing the composition of a fishing reel electromagnetic brake system according to an embodiment of the present invention.

[0048] FIG4 is a cross-sectional diagram of a guide ring speed measuring mechanism according to an embodiment.

[0049] FIG5 is a schematic diagram showing the detailed structure of a guide ring speed measuring mechanism in some embodiments.

[0050] FIG6 is a schematic cross-sectional view of a guide ring speed measuring mechanism according to some other embodiments.

[0051] FIG. 7 is a schematic diagram of the left side plate and the speed reflective marking of the winding drum according to an embodiment.

[0052] FIG8 is a flow chart of controller processing steps according to an embodiment.

[0053] FIG9 is a flow chart of controller processing steps according to some embodiments.

[0054] FIG10 is a closed-loop control block diagram of an embodiment.

[0055] FIG11 is a closed-loop control block diagram of some embodiments.

[0056] FIG12 is a closed-loop control block diagram of some other embodiments.

[0057] FIG13 is a schematic diagram showing records of a conversion relationship table in some embodiments.

[0058] FIG14 is a schematic diagram of a fishing line.

[0059] Figure 15 is a schematic diagram of another fishing line.

[0060] FIG16 is a schematic cross-sectional view of the light escape notch of the guide ring speed measurement mechanism in some embodiments.

[0061] FIG17 is a schematic cross-sectional view of the light escape notch at the end of the guide ring speed measuring mechanism in some embodiments.

[0062] FIG18 is a schematic cross-sectional view of the positioning support of the guide ring speed measuring mechanism in some embodiments.

[0063] FIG19 is a schematic cross-sectional view of a wire speed measuring device according to some embodiments.

[0064] FIG20 is a schematic diagram showing the composition of a wire speed measuring device according to another embodiment.

[0065] Explanation of the accompanying reference numerals: 100: fishing reel body, 200: winding drum, 300: clutch switch, 400: line guide ring, 500: line reel handle; 600: guide ring speed measuring mechanism, 700: rotation detection mechanism, 800: brake mechanism, 900: controller; 201: left side plate of winding drum, 202: winding drum shaft, 401: escape light gap, 410: positioning support, 450: guide ring, 601: projection light source, 602: light receiving part, 603: first lens, 604: second lens, 605: third lens, 606: spectrometer, 701: speed reflective mark, 801: brake coil, 802: magnetic brake member, 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: loop speed calculation module, 913: tangent speed calculation module, 914: ΔV calculation module, 915: Lf calculation module; 1000: fishing line. General Description of the Invention

[0066] The following further describes the embodiments of the present application. These descriptions are exemplary and are intended to enable those skilled in the art to implement the embodiments of the present application. They are not intended to limit the scope of protection of the present application. It should be noted that the embodiments of the present application and the features therein can be combined with each other unless there is a conflict.

[0067] This specification also does not describe content that is essential for actual implementation but irrelevant to understanding the present application, such as power supply, compiler instructions, specific processor operation process, and specific closed-loop control algorithms. These contents are all well-known technologies, and those skilled in the art should be familiar with various ways to apply these well-known technologies to the implementation of the present application based on this specification.

[0068] In the drawings, the same or similar reference numerals throughout represent the same or similar components or components having the same or similar functions.

[0069] In the description of this specification, "one embodiment" or "some embodiments" means that one or more embodiments of this specification include a particular feature, structure, or characteristic described in conjunction with the embodiment. Therefore, the phrases "in one embodiment," "in some embodiments," "in other embodiments," "in other embodiments," etc. that appear in different places in this specification do not necessarily refer to the same embodiment, but rather mean "one or more but not all embodiments," unless otherwise specifically emphasized.

[0070] In addition, in the description of the embodiments of this specification, "plurality" refers to two or more than two, and the terms "include", "comprising", "having" and their variations all mean "including but not limited to", unless otherwise specifically emphasized.

[0071] The "line guide ring" or "guide ring" involved in this application specifically refers to the line outlet component of the fishing reel, through which the output fishing line passes and is led out to the outside of the fishing reel. For example, the "wire gauge" or "line gauge" of a double-bearing fishing reel usually belongs to this type of component.

[0072] The loop speed V involved in this application specifically refers to the speed of the fishing line passing through the outlet guide ring 400 when the fishing line is reeled in or released, or equivalently understood as the length of the fishing line passing through the outlet guide ring 400 during a certain observation time period T; the tangent speed V involved in this application is t Specifically, it refers to the speed at which the fishing line is wound or released when the reel 200 rotates, or equivalently, it can be understood as the length of fishing line wound or released by the reel 200 during a certain period of time T. The rotation speed V involved in this application is r Specifically, it refers to the rotation speed of the winding drum 200, or equivalently understood as the number of rotations of the winding drum 200 in a certain inspection time period T; the above-mentioned inspection time period T can be a fixed absolute time length, such as 1 second, or it can be a relative reference time period, such as the time period in which the winding drum 200 rotates a certain angle A as a inspection time period T.

[0073] In some embodiments, the speed of the fishing line passing through the outlet and the speed of the reel releasing the fishing line are both divided by a certain metric transformation value to obtain the "relative loop speed" and the "relative tangent speed" respectively. In this case, the above-mentioned "loop speed V" can also be the relative loop speed, and the above-mentioned "tangent speed V" t " can also be the relative tangential speed, which will be described in detail in the second embodiment.

[0074] The "winding turns" or "winding turns on the reel" involved in this application specifically refers to the number of winding turns of the fishing line on the reel; the "line release" involved in this application specifically refers to the working state of the reel releasing the fishing line; the "winding diameter" or "winding body diameter" involved in this application specifically refers to the overall diameter after the fishing line is wound on the reel.

[0075] The controller involved in this application refers to a circuit device having a circuit substrate and electronic components and the software stored therein; the current control unit involved in this application specifically refers to an element or combination of elements that controls the on-off switching of current or the change of current intensity by an input signal; the electrical connection involved in this application specifically refers to: a circuit connection, or a connection method for transmitting electrical signals or electrical energy through a wireless connection.

[0076] As shown in Figures 1 and 2, a conventional fishing reel comprises a reel body 100, a spool 200, a clutch switch 300, a line guide ring 400, and a reel handle 500. The reel also includes a gear transmission mechanism and a clutch mechanism. When reeling the fishing line, the clutch mechanism engages, and the reel handle 500 drives the spool 200 to rotate via the gear transmission mechanism. When the clutch switch 300 is pressed, the clutch mechanism disengages, separating the spool 200 from the transmission mechanism. The spool 200 can now rotate freely, entering the line-releasing state. The spool 200 has left and right side plates on either side, and the spool 200 is fixed to the spool shaft 202 as a single body (see Figure 2). The reel body 100 also has left and right side covers on either side. The above is a common structural form of some conventional fishing reels, and reels with this structure are also commonly referred to as dual-bearing fishing reels.

[0077] This application relates to the braking mechanism of an electromagnetic brake device for a fishing reel. Using electromagnetic induction to brake a rotating mechanism is a well-known technique. Specific applications include the related reel brake components disclosed in Chinese Patent Application Publication Nos. CN110432236A and CN1806540A, which include multiple magnets and multiple coils. Another example is the energy recovery system used in some automotive brakes. To facilitate understanding of the embodiments of this application, a conventional, well-known braking mechanism will be described below.

[0078] As shown in Figure 2, the braking mechanism 800 includes a braking coil 801 and a magnetic braking component 802. The braking mechanism 800 brakes the reel 200 through electromagnetic induction during the process of releasing the fishing line; the magnetic braking component 802 is a magnetic rotor that rotates integrally with the reel 200, and the braking coil 801 is a stator coil arranged on the fishing reel body 100. The braking coil 801 and the magnetic braking component 802 are arranged opposite to each other, so that the braking coil 801 generates an induced current due to the rotation of the magnetic braking component 802.

[0079] A more specific example of a braking mechanism is shown in Figure 2. The magnetic brake member 802 is composed of four permanent magnets, and the magnetic brake member 802 is mounted on the spool shaft 202 via the connecting member 803 in a manner that allows it to rotate integrally with the spool shaft 202; the spool shaft 202 is mounted on the spool 200 in a manner that allows it to rotate integrally with the spool 200; the multiple magnetic poles of the magnetic brake member 802 are arranged in rotational symmetry with the axis of the spool shaft 202 as the center; correspondingly, the brake coil 801 is composed of four single coils connected in series, and the brake coil 801 is fixed on the fishing reel body 100 via the circuit board of the controller 900; the brake coil 801 is arranged on the outer peripheral side of the magnetic brake member 802 facing the magnetic brake member 802, and is concentric with the axis of the spool shaft 202.

[0080] It can be understood that in some examples, the brake coil 801 can be set as a rotor and the magnetic brake component 802 can be set as a stator, without limitation; in some examples, the rotor can also be set on the side or other position of the winding drum 200, and correspondingly, the stator is set at the relative position of the rotor to form a power generation device, without limitation; in some examples, the number of permanent magnets used in the magnetic brake component 802 and the number of single coils used in the brake coil 801 can be one or more, without limitation; in some examples, the brake coil 801 can also adopt a combination of multiple single coils in parallel or a mixed combination of series and parallel, without limitation.

[0081] Some differences between the embodiments of the present application and the conventional technology lie in the improvement of the control method of the current in the brake coil 801, specifically, in the detection of the loop speed and the closed-loop control based on the tangential speed and the loop speed.

[0082] It will be understood that the structure illustrated in the embodiments of the present application does not constitute a specific limitation on the fishing reel or its braking device. In some embodiments of the present application, the fishing reel or its braking device may include more or fewer components than shown in the figure, or combine certain components, or split certain components, or arrange the components differently. Best Mode for Carrying Out the Invention

[0083] [Example 1]

[0084] Example 1 is a preferred implementation of the present application. As shown in Figure 3, the fishing reel electromagnetic braking device of an embodiment of the present application, in addition to the above-mentioned braking mechanism 800, also includes: a guide ring speed measuring mechanism 600, a rotation detection mechanism 700, and a controller 900. Each part is described in detail as follows.

[0085] (1) Guide ring speed measuring mechanism 600

[0086] In this embodiment, the guide ring speed measuring mechanism 600 is a linear speed sensor. As shown in Figure 4, the linear speed sensor is embedded in the inner wall of the outlet line guide ring 400 to detect the speed information of the fishing line in the outlet line guide ring and transmit the detected fishing line speed information to the controller 900.

[0087] It can be understood that the above-mentioned linear velocity sensor adopts well-known technology, such as commonly used grating sensors, magnetic grating sensors and aberration velocity sensors, which can realize the detection of linear velocity or displacement.

[0088] The line speed sensor is installed in an embedded manner on the inner wall of the line guide ring 400, which can make the fishing line pass smoothly in the line guide ring 400. The guide ring speed measuring mechanism 600 can also be installed in a non-embedded manner on the inner wall of the line guide ring 400, and can also detect the speed information of the fishing line.

[0089] Specifically, in this embodiment, the guide ring speed measurement mechanism 600 further includes a projection light source 601 and a light receiving unit 602. The projection light source 601 is configured to emit light toward the fishing line moving within the outlet guide ring 400, and the light receiving unit 602 is configured to receive the reflected light signal from the fishing line. In some embodiments, the projection light source 601 and the light receiving unit 602 can be provided separately or integrated. More specifically, as shown in FIG5 , the projection light source 601 and the light receiving unit 602 are combined with an optical element. Light emitted by the projection light source 601 passes through a first lens 603, is reflected by a beam splitter 606, and then passes through a third lens 605 to illuminate the fishing line. 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. FIG6 shows another optical path combination. Light emitted by the projection light source 601 passes through a first lens 603 to illuminate the fishing line. The reflected light from the fishing line passes through a second lens 604 before reaching the light receiving unit 602. These similar optical combination methods are well-known technologies and are not limited thereto.

[0090] In this embodiment, the light receiving part 602 is a photoelectric sensor, which uses a fishing line with color segments of different reflectivity and a fixed mark length L, can convert the detected reflected light signal into an electrical pulse signal, and is configured to calculate the loop speed V of the fishing line.

[0091] The fishing line used in this embodiment is shown in Figure 15. In some embodiments, the fixed mark length L is less than 0.85 meters; in some embodiments, the fixed mark length L is less than 0.3 meters; in some embodiments, the fixed mark length L is less than 0.1 meters; and in some embodiments, the fixed mark length L is less than 0.05 meters. It should be noted that the value of the fixed mark length L can be adapted to different application scenarios. The lower the value of the fixed mark length L, the higher the detection accuracy, and this is not limited to this.

[0092] It should be pointed out that it is a well-known technology to detect displacement or speed using the reflected light of a signal marker. For example, the widely used grating ruler and grating positioning mouse are specific applications.

[0093] (2) Rotation detection mechanism 700

[0094] In this embodiment, the rotation detection mechanism 700 includes a speed sensor and a rotation direction detection device to detect the rotation information of the reel 200, which includes information on the rotation pulse and the rotation direction; the rotation detection mechanism 700 is arranged on the fishing reel body 100, and transmits the detected rotation information to the controller 900.

[0095] Specifically, the rotation detection mechanism 700 includes a main speed sensor configured to detect rotational speed and an auxiliary speed sensor serving as a rotation direction detector. Both the main and auxiliary speed sensors are reflective photoelectric speed sensors, fixed to the fishing reel body 100 via the circuit board of the controller 900. The detection direction of these two speed sensors points toward the left side plate 201 of the spool, and the two speed sensors form a certain central angle with the rotation center of the spool 200 as the center. As shown in Figure 7, N number of speed reflective markings 701 are positioned on the outside of the left side plate 201 of the spool, corresponding to the detection direction of the reflective photoelectric speed sensors. As the spool 200 rotates, the speed sensors emit light and detect the reflected light signals from the speed reflective markings 701, generating a rotation pulse signal. The phase difference between the rotation pulse signals generated by the auxiliary and main speed sensors is used to calculate the rotation direction of the spool 200.

[0096] The number of the above-mentioned speed reflective marks N=3. In some embodiments, the number of the speed reflective marks N can also be other natural numbers greater than 0, and there is no limitation on this. In some embodiments, there can be multiple auxiliary speed sensors and main speed sensors, and there is no limitation on this.

[0097] It should be pointed out that using sensors to detect rotation speed, rotation count and rotation direction is a well-known technology. In some embodiments, the above-mentioned reflective photoelectric rotation speed sensor can also be replaced by other well-known components such as other photoelectric detection devices, Hall sensors, proximity switches, contact switches, etc., which are set at a position on the fishing reel body 100 to detect the rotation information of the winding drum 200 to achieve the same function.

[0098] (3) Controller 900

[0099] 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 includes: a processor 901, a memory, an I / O interface 902, and a current control unit 903. The memory includes a RAM memory 904, a ROM memory 905, and a flash memory (FLASH ROM) 906. The controller 900 is electrically connected to the guide ring speed measurement 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.

[0100] In some embodiments, the controller 900 may also be set at other suitable positions in the main body of the fishing reel 1, without limitation; in some embodiments, the above-mentioned RAM memory 904, ROM memory 905, and flash memory (FLASH ROM) 906 may also be replaced by other well-known storage devices with similar functions, such as: using flash memory (FLASH ROM) instead of ROM, and using SRAM instead of DRAM, without limitation.

[0101] The controller 900 is provided with a loop speed calculation module 912, which calculates the loop speed V based on the electrical pulse signal of the guide ring speed measuring mechanism 600 and the fixed mark length L of the fishing line used.

[0102] The controller 900 processes the rotation information from the rotation detection mechanism 700 as follows:

[0103] The rotation direction of the winding drum 200 is calculated based on the phase difference between the two rotation pulse signals generated by the auxiliary speed sensor and the main speed sensor of the rotation detection mechanism 700; the speed V of the winding drum 200 is calculated based on the electrical pulse signal of the main speed sensor. r According to one of the two rotation pulse signals above, the number of turns N of the fishing line wound on the reel 200 is counted. r , the number of winding turns N r The number of turns recorded is recorded in the flash memory (FLASH ROM) 906. Specifically, when the fishing line is reeled in, the number of turns recorded is increased by 1 / N turns according to each electric pulse signal. r =N r +1 / N, when the fishing line is released, the number of winding turns recorded is reduced by 1 / N according to each electric pulse signal, N r =N r -1 / N, where N is the number of the rotation speed reflective marks 701 in the rotation detection mechanism 700 .

[0104] The controller 900 sets the winding number N of the winding drum 200 to r , speed V r , tangential speed V t The corresponding conversion relationship parameters between the three are recorded and stored in the flash memory (FLASH ROM) 906.

[0105] Among them, the conversion relationship parameter specifically refers to the number of winding turns N r , speed V r To calculate the corresponding tangential velocity V tAccording to known mathematical and physical knowledge, the conversion parameters are related to the geometric dimensions of the spool 200 and the thickness of the fishing line used. Therefore, the conversion parameters can be set and stored in advance and can be expressed in the form of parameter values, regression models, numerical tables, or combinations thereof, without limitation.

[0106] A specific example: the original diameter of the reel 200 is recorded as "D", the thickness d of the fishing line wound on the reel 200 and the number of winding turns N r There is a fixed conversion coefficient K between them, that is, d=K*N r , tangential velocity V t , winding turns N r , speed V r The relationship between them is recorded as "Formula 1", that is:

[0107] V t =π*(D+K*N r *2)*V r The above diameter D and coefficient K are the conversion parameters.

[0108] The controller 900 is provided with a tangential speed calculation module 913. When the fishing line is released, the tangential speed calculation module 913 calculates the tangential speed according to the number of winding turns N of the reel 200. r , speed V r and the conversion parameters stored in the memory to calculate the tangential speed V t A specific example:

[0109] Tangential speed V t =π*(D+K*N r *2)*V r .

[0110] The current control unit 903 is a switching element, and the correction signal controls the connection and disconnection of the switching element in an on-off switching manner. Among them, the switching element specifically refers to an element or element combination that controls the current on and off by an input signal, such as a field effect transistor (FET), a switching transistor, a thyristor, and other elements or element combinations, and there is no limitation on this.

[0111] The correction signal specifically refers to a signal for controlling the electromagnetic induction current of the brake coil 801 obtained by the following closed-loop control calculation.

[0112] (4) Closed-loop control

[0113] As shown in FIG11 , the controller 900 is provided with a closed-loop control calculation module 911, which uses the loop speed V calculated by the loop speed calculation module 912 as the dynamic input target control quantity and the tangent speed V calculated by the tangent speed calculation module 913 as the dynamic input target control quantity. tAs the output controlled quantity, the tangential speed V t As feedback, a correction signal for correcting the winding drum speed is calculated; this correction signal controls the current in the brake coil 801 via the current control unit 903, thereby controlling the braking force on the winding drum 200, and then correcting the speed of the winding drum 200, thereby controlling the tangential speed V in a closed loop. t Keep the following loop speed V consistent.

[0114] A specific example of a simple closed-loop control mode, when the tangential speed V t When the tangential speed V is greater than the loop speed, the output correction signal turns on the current control unit 903, and the brake coil 801 generates a braking force on the winding drum 200 to decelerate it; when the tangential speed V t When it is less than or equal to the loop speed V, the output correction signal disconnects the current control unit 903, and the brake coil 801 cancels the braking force on the winding drum 200 to stop decelerating, thereby realizing closed-loop control.

[0115] Closed-loop control is a well-known technology. In some embodiments, those skilled in the art may adopt other different closed-loop control algorithms or a combination of multiple closed-loop control algorithms, such as: any one or more combinations of two-position control, proportional control, integral control, differential control, PID control and other algorithms, without limitation.

[0116] This embodiment dynamically detects the loop speed V and the tangential speed V t The system automatically corrects the reel speed deviation based on the matching condition and realizes closed-loop control, thereby improving the stability of fishing reel braking. Modes for Carrying Out the Invention

[0117] [Example 2]

[0118] The following embodiments are implemented by replacing or improving upon the above-mentioned embodiment 1. Only the replaced or improved parts are described below, and the parts that are the same as embodiment 1 will not be repeated. For parts that are inconsistent with the description in embodiment 1, the following description shall prevail.

[0119] (1) Improvement or replacement of the guide ring speed measuring mechanism and the fishing line used

[0120] Under the premise that the structure of the guide ring speed measurement mechanism remains unchanged, this embodiment can detect the relative speed of the guide ring when using a matching fishing line. The matching fishing line has a signal marker sequence separated by color segments with different reflectivity. The light receiving unit 602 converts the detected reflected light signal into an electrical pulse signal. The signal marker sequence matches the geometric parameters of the reel, wherein the matching relationship is: the interval length L of the signal marker sequence is 1 / 2. X The diameter D of the fishing line wound on the reel XIncrease or decrease in proportion to increase or decrease, so that the interval length L of the signal marker sequence X The corresponding winding diameter D X The ratio between them meets the preset value R r , that is, R r =L X / D X By detecting the number of signal marks M passing through the outlet and the reel rotation angle A within the same time period T, the relative speed of the fishing line passing through the ring at the outlet and the relative tangential speed of the fishing line released by the reel can be calculated.

[0121] As a specific example, when the winding drum rotates at an angle A in degrees (one circle is 360 degrees), o ) to express:

[0122] The speed of the fishing line passing through the outlet = M*R r *D X / T;

[0123] The speed at which the reel releases the line = π*D X *A / 360 o / T.

[0124] Divide the above two formulas by the winding diameter D X Then the relative ring speed and relative tangential speed are obtained, that is, the winding diameter D X is the relative value of the measurement unit.

[0125] Relative loop speed = M*R r / T; relative tangential speed = π*A / 360 o / T.

[0126] Therefore, there is no need to calculate the winding diameter D X , and there is no need to calculate the number of winding turns, the relative loop speed and relative tangential speed can be calculated. The relative loop speed is treated as the loop speed V, and the relative tangential speed is treated as the tangential speed V t Processing can be performed for closed-loop control.

[0127] As a more concrete example, suppose R r =2, the original diameter of the reel D = 0.02m, then the signal mark interval of the fishing line at the start of winding is L0 = D*R r =0.04m, as the thickness of the wound fishing line increases, when the winding diameter is D X hour,

[0128] Signal mark interval L X = D X *R r=2D X , such as winding diameter D X When it is 0.03m, the signal marker interval is L X =2D X =0.06m. In this way, the intervals between the signal marks on the fishing line are gradually changing, and the fishing line and the reel are in a matching relationship. At any time when the reel rotates the same angle, the number of signal marks on the released fishing line is equal.

[0129] Of course, the above principle can also be achieved by other deformation alternatives. For example, when the rotation angle A is expressed in radians (one circle is 2π), the relative tangential speed = A / 2 / T.

[0130] In addition, the linear velocity sensor can also be installed on the side of the outlet guide ring. As a specific example, as shown in Figure 19, the linear velocity sensor includes a projection light source 601 and a light receiving part 602. The linear velocity sensor is located on the side of the guide ring 450 and is connected to the guide ring as a whole through the shell 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 can be connected through the fishing reel body or through a fishing rod. In short, the guide ring guides the fishing line to be tested. As long as the detection direction of the linear velocity sensor points to the fishing line passing through the outlet, the measurable distance between the linear velocity sensor and the fishing line to be tested meets the measurable distance, and the speed of the fishing line passing through the ring can be detected. There is no restriction on this. Among them, the measurable distance refers to the range of the distance between the linear velocity sensor and the fishing line to be tested required to maintain a stable working state. The measurable distance is determined by the specific application scenario. Those skilled in the art can determine the measurable distance based on theoretical calculations or empirical data, or they can determine the measurable distance through a limited number of experiments.

[0131] (2) Improvement of the Rotation Detection Mechanism 700

[0132] The rotation detection mechanism 700 includes a rotation speed sensor to detect the rotation information of the winding drum 200. The rotation information at least only includes rotation pulses, and the rotation direction information is not essential.

[0133] (3) Improvements to Controller 900

[0134] The loop passing speed calculation module 912 of the controller 900 calculates the relative loop passing speed based on the electrical pulse signal of the guide ring speed measuring mechanism 600 and processes it as the loop passing speed V.

[0135] The controller 900 processes the rotation pulse signal generated by the rotation speed sensor of the rotation detection mechanism 700, without calculating the rotation direction of the winding drum 200 or accumulating the number of turns N of the fishing line wound on the winding drum 200. r , without calculating and storing the number of winding turns N of the winding drum 200 r , speed V r, tangential speed V t The corresponding conversion relationship parameters between the three.

[0136] The tangential speed calculation module 913 of the controller 900 calculates the relative tangential speed according to the rotation pulse when the fishing line is released, and uses it as the tangential speed V t deal with.

[0137] (IV) Improvement or replacement of closed-loop control

[0138] The relative loop speed is used as the loop speed V, and the relative tangential speed is used as the tangential speed V t Processing, thereby achieving closed-loop control.

[0139] This embodiment can simplify the complexity of the rotation detection mechanism, simplify the processing process of the controller, and reduce parameter settings.

[0140] [Example 3]

[0141] The following embodiments are implemented by replacing or improving upon the above-mentioned embodiment 1. Only the replaced or improved parts are described below, and the parts that are the same as embodiment 1 will not be repeated. For parts that are inconsistent with the description in embodiment 1, the following description shall prevail.

[0142] (1) Replacement of the rotation detection mechanism 700

[0143] The rotation detection mechanism 700 is replaced by a spool aberration speed measuring device. The spool aberration speed measuring device is an aberration speed sensor, which is electrically connected to the controller 900 and is disposed on the fishing reel body with its detection direction directed toward the surface fishing line of the spool. The spool aberration speed measuring device is configured to directly detect the tangential speed of the surface fishing line.

[0144] (2) Improvement or Replacement of Controller 900

[0145] The controller 900 does not need to process the reel speed and related information, nor does it need to accumulate and count the number of turns N of the fishing line wound on the reel 200. r When the fishing line is released, the tangential speed calculation module 913 of the controller 900 directly calculates the tangential speed V according to the signal of the spool aberration speed measuring device. t .

[0146] This embodiment can simplify the complexity of the rotation detection mechanism, simplify the processing process of the controller, and reduce parameter settings.

[0147] [Other embodiments]

[0148] Based on the above-mentioned embodiment 1, embodiment 2, or embodiment 3, replacements, transformations, variations, or improvements are made, unless there is a conflict, to provide the following embodiments. The features of these embodiments and embodiments can be combined with each other, and the features of multiple embodiments and embodiments can be combined to form new embodiments. The following only describes the replacement, transformation, or improvement parts, and the similarities with the original embodiments are not repeated. Any inconsistencies with the description of the original embodiments are subject to the following description.

[0149] (1) In some embodiments, the guide ring speed measuring mechanism 600 detects speed information and transmits it to the controller 900 for processing, which can be implemented in any of the following alternative ways:

[0150] As an alternative to Embodiment 1 or 3, the guide ring speed measurement mechanism 600 is specifically an aberration speed sensor, further comprising a projection light source 601 and a light receiving unit 602. The light receiving unit 602 is specifically an image sensor. Under the control of the controller 900, the image sensor captures local image information reflected by the fishing line at fixed time intervals as the fishing line moves. Accordingly, the loop speed calculation module 912 processes the image information from the guide ring speed measurement mechanism 600, performs a before-and-after comparison and analysis of the local images of the moving fishing line captured at regular time intervals, and calculates the loop speed V based on the distance the local images travel during the set time intervals. In this way, speed measurement can be performed using ordinary fishing lines.

[0151] It should be pointed out that using image information to detect displacement or speed is a well-known technology. For example, the widely used laser mouse and the aberration speed sensor of TRANS-TEK of the United States are both applications of this well-known technology.

[0152] For Example 1 or Example 3, another alternative is that the guide ring speed measuring mechanism 600 is a magnetic sensor, and uses a magnetic signal with a fixed mark length L to mark the fishing line at intervals. The guide ring speed measuring mechanism 600 converts the detected magnetic signal into an electrical pulse signal; accordingly, the loop speed calculation module 912 calculates the loop speed V based on the electrical pulse signal of the guide ring speed measuring mechanism 600 and the fixed mark length L of the magnetically marked fishing line used.

[0153] It should be noted that using magnetic signal markers to detect displacement or speed is a well-known technology, for example, the widely used magnetic grating sensors and magnetic scales are one application.

[0154] As shown in Figure 16, the magnetic signal marker specifically comprises: a magnetic material attached to the fishing line, a series of magnetic signals recorded at intervals of a fixed mark length L, the magnetic pole arrangement shown in Figure 16, and the magnetic sensor can be a well-known magnetic head. In some embodiments, the magnetic sensor can be a well-known Hall sensor or other device with similar functions; in some embodiments, the fixed mark length L is less than 0.85 meters; in some embodiments, the fixed mark length L is less than 0.3 meters; in some embodiments, the fixed mark length L is less than 0.1 meters; in some embodiments, the fixed mark length L is less than 0.05 meters. It should be noted that the value of the fixed mark length L can be adapted according to different application scenarios. The lower the value of the fixed mark length L, the higher the detection accuracy, and there is no limitation on this.

[0155] The manufacturing method of attaching magnetic materials to fishing lines can adopt well-known technologies. For example, magnetic tapes that record data, audio and video information are made by attaching magnetic materials to flexible substrates. Such methods can also be used to attach magnetic materials to fishing lines. For example, magnetic material powder can be mixed with liquid adhesive and coated or impregnated on fishing lines or raw silk for producing fishing lines, so that magnetic materials can be attached to fishing lines.

[0156] For the second embodiment, there is another alternative method, in which the guide ring speed measuring mechanism 600 is a magnetic sensor, and the matched fishing line has a signal mark sequence with magnetic signal marks spaced apart. The guide ring speed measuring mechanism 600 converts the detected magnetic signal into an electrical pulse signal. The signal mark sequence is matched to the geometric parameters of the reel, and the matching relationship is the interval length L of the signal mark sequence. X The diameter D of the fishing line wound on the reel X Increase or decrease in equal proportion to meet the interval length L of the signal marker sequence X The corresponding winding diameter D X The ratio between them meets the preset value R r , that is, R r =L X / D X Correspondingly, the loop speed calculation module 912 calculates the relative loop speed as the loop speed V according to the electrical pulse signal of the guide ring speed measuring mechanism 600 .

[0157] (II) In some embodiments, the electromagnetic induction current of the brake coil 801 in the controller is controlled by any of the following methods:

[0158] As an alternative, the current control unit 903 is specifically a switching element, which switches the electromagnetic induction current in the brake coil 801 on and off, and the correction signal controls the duration of the switching element being on and off by adjusting the duty cycle of the PWM (pulse width modulation) signal.

[0159] In another alternative, the current control unit 903 is a current intensity adjustment element, and the correction signal adjusts the current intensity in the current intensity adjustment element in a manner of varying strength.

[0160] Among them, the current intensity adjustment element specifically refers to an element or element combination whose current intensity is controlled by an input signal, such as a field effect transistor, a triode or other element or a combination thereof working in the variable resistance area, or a circuit combination that realizes the function of a digital potentiometer (Digital Potentiometer), and there is no restriction on this.

[0161] (3) In some embodiments, the specific method of closed-loop control can be replaced by any of the following methods:

[0162] An alternative method, as shown in Figure 12, is to calculate the tangential velocity V t The difference between the speed V and the ring speed ΔV=V t –V, the controller 900 is provided with a difference ΔV calculation module 914, which includes a loop speed calculation module 912 and a tangent speed calculation module 913, with a predetermined allowable speed difference threshold Vk as the input target control quantity and the above difference ΔV as the output controlled quantity and feedback quantity.

[0163] Among them, for the replacement of Example 1 or Example 3, in some of the embodiments, the allowable speed difference threshold value Vk is in the range of -0.1 to 1.0 m / s; in other embodiments, the allowable speed difference threshold value Vk is in the range of -0.05 to 0.5 m / s; in other embodiments, the allowable speed difference threshold value Vk is in the range of 0 to 0.2 m / s.

[0164] Regarding alternatives to the second embodiment, in some embodiments, the above-mentioned permissible speed difference threshold Vk can also be appropriately converted and adjusted. For example, it can be converted to a relative value using the original diameter D of the winding drum as a unit of measurement. For example, the permissible speed difference threshold Vk can be set to a value between -5 and 50 / second. It should be noted that the value of the permissible speed difference threshold Vk can be adapted and set according to different application scenarios and is not limited to this.

[0165] Another alternative method, as shown in Figure 13, is that the controller 900 is provided with a floating line length Lf calculation module 915, and the Lf calculation module 915 includes a loop speed calculation module 912 and a tangent speed calculation module 913, which calculates the integral of the above difference ΔV with the line-releasing time to obtain the floating line length Lf retained inside the fishing reel when the fishing line is released; the pre-set allowable floating line length threshold Lk is used as the input target control quantity, the above floating line length Lf is used as the output controlled quantity, and the floating line length Lf is used as the feedback quantity.

[0166] The floating line length Lf refers to the length of the fishing line that has been released from the spool 200 but has not been pulled out of the line guide ring 400 and remains inside the fishing reel when the fishing line is released.

[0167] Among them, for the replacement of embodiment one or embodiment three, in some of the embodiments, the floating line length threshold Lk is allowed to take a value range of 0 to 0.8 meters; in other embodiments, the floating line length threshold Lk is allowed to take a value range of 0 to 0.5 meters; in other embodiments, the floating line length threshold Lk is allowed to take a value range of 0.005 to 0.2 meters.

[0168] Regarding alternatives to the second embodiment, in some embodiments, the allowable line float length threshold Lk can also be appropriately converted and adjusted. For example, it can be converted to a relative value using the original diameter D of the spool as a unit of measurement. For example, the allowable line float length threshold Lk can be set to a value between 0 and 40. It should be noted that the value of the allowable line float length threshold Lk can be adapted and set according to different application scenarios and is not limited thereto.

[0169] Maintaining the appropriate floating line length through closed-loop control can ensure that the fishing line is in a moderately relaxed state without tangling, and can also prevent the braking system from consuming the inertial kinetic energy of the bait, thereby increasing the flight distance of the bait.

[0170] Some other alternative implementations, for example, calculate the loop speed V for a time period T p The integral value S, and the calculation of the tangential velocity V t For this time period T p The integral value S t Calculate the difference between the two as the velocity integral difference ΔS=S t –S, with the preset integral difference control value Sk as the input target control quantity, and the speed integral difference ΔS as the output controlled quantity and feedback quantity for closed-loop control. p ≥ the sampling period of closed-loop control, and T p ≤ Pay-off time, in addition T p The value may be a fixed value or a dynamic value. Specifically, the adaptation value may be determined by a person skilled in the art through a limited number of tests, and there is no limitation on this.

[0171] The above-mentioned equivalent transformation methods are easily conceivable by those skilled in the art, and achieving closed-loop control through the above-mentioned methods does not deviate from the spirit and protection scope of this application.

[0172] (IV) With respect to the first embodiment, in some embodiments, the rotation direction detection may also be implemented by any of the following rotation direction detection devices:

[0173] In an alternative embodiment, the rotation direction detection device is an auxiliary rotation speed sensor provided on the fishing reel body, and the controller calculates the rotation direction of the spool based on the phase difference between the rotation pulse signals respectively generated by the auxiliary rotation speed sensor and the main rotation speed sensor;

[0174] Alternatively, the rotation direction detection device is a state detection element provided on the fishing reel body. This state detection element can use a known switch element such as a Hall switch, a contact switch, or a proximity switch to detect changes in the position or movement of the fishing reel's mechanical components, and determine the rotation direction of the spool based on the generated detection signal. Detecting the position or movement of mechanical components and converting them into electrical signals is a known technique. For example, a magnet can be provided at the bottom of the button of the clutch switch 300, and a Hall switch can be provided on the fishing reel body 100 relative to the position of the magnet to detect the working state of the reel.

[0175] In another alternative, the rotation direction detection device is implemented by a threshold comparison unit, which reads the absolute value of any one of the reel rotation speed, tangential speed, or loop speed, or the rate of change of any one of them, and determines whether the reel is in the line-releasing state based on whether it is detected that the read parameter is greater than the respective corresponding preset threshold value. Because the reel 200 rotates at high speed when the bait is cast, and rotates at low speed when the line is reeled in, if the absolute value of the speed value read is higher than its corresponding preset threshold value, it is determined that the state of casting and releasing the bait is entered. Thereafter, when it is detected that the continuous line-releasing process stops, the state of casting and releasing the bait is ended and switched to the line-reeling state; or, in another alternative, since the reel rotation speed V at the beginning of casting the bait is greater than the corresponding preset threshold value, the reel 200 is judged to be in the line-releasing state. r or tangential velocity V t Or the loop speed V has an instantaneous high rate of change. Therefore, it is also possible to determine whether the bait casting and line releasing state has been entered by detecting whether its rate of change is higher than its corresponding preset rate of change threshold.

[0176] The threshold value range of the rotation speed is between 5 rpm and 500 rpm in some embodiments, and between 50 rpm and 100 rpm in other embodiments; the tangential speed V t The threshold value of or the threshold value of the loop speed V in some embodiments is between 0.5 m / s and 50 m / s, and in other embodiments is between 5 m / s and 10 m / s; the preset threshold value of the above parameters or the preset threshold value of the above parameter change rate can be set according to different application scenarios, and can also be selected by technical personnel in this field through a limited number of tests to adapt the value, which is not limited to this.

[0177] The threshold comparison unit circuit is electrically connected to the controller 900 and can be disposed on the fishing reel body 100. Alternatively, the threshold comparison unit circuit can be integrated into the circuitry of the controller 900, without limitation. Using a threshold comparison method to detect rotational direction can reduce system complexity, improve reliability, and save manufacturing costs.

[0178] There is also an alternative method, in which the rotation direction detection device is implemented by an acceleration sensor provided on the fishing reel body, and the acceleration sensor is electrically connected to the controller. It determines whether the reel is in the line-releasing state based on whether the acceleration detected is greater than a preset acceleration threshold. Because the fishing rod and the fishing reel are swung when the bait is cast, the acceleration sensor is electrically connected to the controller 900. When the acceleration is detected to be greater than the preset acceleration threshold, it is determined to enter the bait-casting and line-releasing state. Thereafter, when it is detected that the continuous line-releasing process stops, the bait-casting and line-releasing state ends and switches to the line-reeling state. The preset acceleration threshold can be set according to the specific application scenario, or a suitable value can be determined by a person skilled in the art through a limited number of experiments, and there is no limitation on this.

[0179] In addition, there is an alternative method. When the guide ring speed measuring mechanism 600 has an aberration speed sensor, the rotation direction detection device can be realized by the aberration speed sensor. The rotation direction of the reel 200 is judged according to the moving direction of the fishing line detected by the aberration speed sensor. The aberration speed sensor also serves as the rotation direction detection device to improve reliability.

[0180] In addition, there is an alternative method. When the main speed sensor used also has the function of detecting the rotation direction, the main speed sensor can also serve as the rotation direction detection device to improve reliability. The above-mentioned speed sensor with the function of detecting the rotation direction is specifically aberration speed sensor, resolver, etc., as well as the method disclosed in Chinese patent application number CN201821109629.X: at least two detection marks of different sizes are provided on the rotating object to be measured, and are arranged at intervals; the detection sensor is set in contact or non-contact with the rotating object to be measured, and the rotation direction is determined based on the detected signal width sequence.

[0181] In short, the rotation direction detection device can be implemented by detecting the rotation direction of the reel by any known method, or by detecting the mechanical state of the fishing reel when releasing or reeling in the line by any known method, or by detecting the acceleration information of the fishing reel when casting or reeling in the line by any known method, and can also be implemented by detecting the fishing line speed information or the reel rotation speed value by any known method.

[0182] (V) Regarding the first embodiment, in some embodiments, the controller 900 processes and stores the conversion relationship parameters in the following manner:

[0183] The conversion relationship parameters corresponding to various thicknesses of fishing lines are stored in the memory in advance, and a selection button is provided on the fishing reel body 100 and is electrically connected to the controller 900. When fishing, the selection button is used to select and set the matching conversion relationship parameters, or the controller 900 is provided with a wireless communication module that is wirelessly connected to an external setting terminal, and the external setting terminal is used to select and set the matching conversion relationship parameters when fishing.

[0184] The term "selector button" specifically refers to a knob with a graduated dial that, when rotated to different positions, sets different circuit parameters or line connection methods; and equivalent devices that achieve the same functions by pressing a button, such as a radio station selection knob or button, a microwave oven or washing machine gear selection knob or button, and similar devices. Wireless communication can be via Wi-Fi, Bluetooth, NFC, or other modes. The external setting terminal can be a smartphone app, a wireless remote control, or the like, without limitation.

[0185] Since commonly used fishing line parameters are pre-stored, matching can be selected when using, further simplifying the complexity of setting parameters.

[0186] (VI) Regarding the first embodiment, in some embodiments, the controller 900 automatically calculates and stores the conversion relationship parameters in any of the following ways:

[0187] One approach is to use a flat inner side plate of the reel 200 to reduce the tangential velocity V of the reel 200 when it reels the fishing line. t Equal to the loop speed V, take multiple calculations at different time points including the loop speed V, the number of winding turns N r , speed V r The sample data of compose a data sample group. Any two data samples in the data sample group are substituted into the above example formula 1, which is:

[0188] V t =π*(D+K*N r *2)*V r , a set of linear equations with two variables can be obtained. At least one set of equations is used to solve for at least one pair of diameter D and coefficient K. Statistical processing is then performed to determine the mean of diameter D and coefficient K, which is then stored in memory. Collecting multiple data samples for calculation and statistically processing the results to obtain the mean can reduce detection errors.

[0189] In the above embodiment, diameter D is solved as an unknown parameter. Therefore, it can be used as the starting point for counting the number of winding turns when a certain amount of fishing line remains on the spool 200. If the bare spool diameter D is used as the starting point for counting the number of winding turns, since the bare spool diameter D is a fixed value, in some embodiments, this bare diameter can be used as a constant to replace the diameter D in the above embodiment to obtain a linear equation. Therefore, only one data sample is required to establish one equation to calculate the coefficient K.

[0190] For non-planar geometric shapes such as the inner side panels of the reel 200 being inclined or curved, equivalent functional effects can be achieved by simply modifying the corresponding calculation formula according to known geometric knowledge. For example, in an embodiment where the inner side panels of the reel 200 are conical or rotating surfaces, the surface width W of the fishing line winding body of any thickness is x is the distance between the left and right side plates, which has a known functional relationship with the diameter x of the fishing line winding body. This functional relationship is only related to the geometric characteristics of the generatrix of the conical surface or the rotational surface. The area coefficient K occupied by the cross section of each turn of fishing line in the fishing line winding body is s , winding turns N r The relationship between the original diameter D and the winding thickness d is recorded as "Formula 2", that is:

[0191] , at this time the tangential velocity V t , original diameter D, winding thickness d, rotation speed V r The relationship between them is recorded as "Formula 3", that is:

[0192] V t =π*(D+d*2)*V r , coefficient K s The original diameter D is the conversion parameter. When the reel 200 is unwinding, the tangential speed V can be calculated according to formula 2 and formula 3. t In some embodiments, the reel 200 is wound according to the tangential speed V t , winding turns N r , speed V r Substitute the sample data into the above formula 2 and formula 3 to calculate the output coefficient K s and diameter D, coefficient K s and diameter D are used to automatically store conversion relationship parameters.

[0193] Another processing method is to replace the above automatic calculation and storage of conversion parameters with the method of, when reeling in the fishing line, setting the tangential speed V t As the dependent variable, the number of winding turns N r , speed V rAs the independent variable, a regression equation is established, taking multiple parameters including the loop speed V, the number of winding turns N measured at different time points. r , speed V r The sample data is used to form a data sample group, and regression analysis is performed. The regression model and parameters are stored in a read-write memory as conversion relationship parameters. When the fishing line is released, the tangential speed calculation module 913 calculates the number of winding turns N. r , speed V r Input regression model to calculate tangential velocity V t .

[0194] There is another way to deal with it. The above automatic calculation and storage of conversion parameters is replaced by calculating the number of winding turns N when winding the fishing line. r The corresponding tangential velocity V t With speed V r The conversion ratio r, such as r=V t / V r , as shown in Figure 14, the number of winding turns N r and the corresponding conversion ratio r series to make a conversion relationship table and store it in the memory; when the fishing line is released, the tangential speed calculation module 913 calculates the number of winding turns N according to the number of winding turns N. r Look up the corresponding ratio r in the above conversion table, and then calculate the value according to the speed V r Calculate the tangential velocity V t =r*V r .

[0195] Automatically calculate and store conversion parameters, thereby achieving precise braking control without pre-setting operations.

[0196] (7) Based on the above embodiment (6), in some embodiments, the controller 900 determines whether to execute the processing step of calculating and storing the conversion relationship parameters when the reel reels the fishing line in any of the following ways:

[0197] In one embodiment, the above processing steps are automatically performed each time the reel reels in the fishing line;

[0198] Another judgment method is that the fishing reel body is provided with a setting button electrically connected to the controller, and the setting button is used to control whether the above-mentioned processing steps are executed; or the controller 900 is further provided with a wireless communication module that is wirelessly connected to an external operation terminal, and the external operation terminal is used to control whether the above-mentioned processing steps are executed; when a new fishing line is replaced or the conversion relationship parameters need to be refreshed, the operator sends a signal to the controller through the setting method to re-execute the above-mentioned processing steps. The external operation terminal can be a smartphone app, a wireless remote control, etc., without limitation.

[0199] There is another way to judge, when it is detected that the winding turn count value of the fishing line on the reel is lower than the turn threshold or the conversion relationship parameters are not stored, the above processing steps are executed. When a new fishing line is replaced or the fishing line needs to be rewound, the winding turn count value is lower than the turn threshold, and the above processing steps are executed at this time. In some embodiments, the turn threshold value range is 0 to 1200 turns, in some embodiments, the turn threshold value range is 0 to 300 turns, in some embodiments, the turn threshold value range is 0 to 50 turns, and in some embodiments, the turn threshold value range is 0 to 10 turns. It should be noted that the value of the turn threshold can be adapted and set according to different application scenarios, and there is no limitation on this.

[0200] (VIII) In some embodiments, the guide ring speed measuring mechanism 600 is implemented as follows:

[0201] In the case where the linear velocity sensor has a photoelectric sensor or an image sensor, a light escape notch 401 is provided between the two ends or at the end of the outlet guide ring 400, and the detection direction of the linear velocity sensor is opposite to the light escape notch 401. The light escape notch 401 can be an open hole that penetrates the wall of the outlet guide ring, or it can be a non-penetrating pit on the inner wall of the outlet guide ring. FIG17 is a schematic cross-sectional view of an open hole provided between the two ends of the outlet guide ring, and FIG18 is a schematic cross-sectional view of a pit provided at the end of the outlet guide ring. The light escape notch 401 is provided to reduce the reflection of light from the background portion of the detected fishing line, thereby reducing the interference of the light reflected from the inner wall of the outlet guide ring 400 on the fishing line signal picked up by the light receiving part 602, so as to improve the stability of the fishing line signal picked up by the light receiving part 602. According to this principle, those skilled in the art can realize light escape notches of various positions, shapes or structural forms.

[0202] In the case where the linear velocity sensor is implemented by a magnetic sensor, it is a magnetic head 610 protruding from the inner wall of the outlet guide ring 400, and a positioning support 410 is provided in the outlet guide ring. The positioning support 410 maintains the gap between the fishing line in the outlet guide ring and the magnetic head 610 to 0 or maintains a stable working gap. In some embodiments, the specific selection range of the working gap value is between 0 and 2 mm. The working gap value can be adapted and set according to different application scenarios. Those skilled in the art can also determine the appropriate value through a limited number of tests, and there is no limitation on this. At least one positioning support 410 is provided, and it can be implemented in a variety of ways. For example, it can be formed by a raised portion of the inner wall of the outlet guide ring 400, or it can be formed by a support that can block the fishing line from moving away from the magnetic head 610 and fixed in the outlet guide ring 400, and there is no limitation on this. A specific positioning support is shown in Figure 19 . Positioning support 410 is configured to cooperate with magnetic head 610 protruding from the inner wall of line guide ring 400 to maintain a zero or stable working gap between the fishing line and magnetic head 610, thereby improving the stability of magnetic signal reading by magnetic head 610. Based on this principle, those skilled in the art can implement positioning supports in various positions, shapes, or structural forms.

[0203] (9) With respect to Example 1 or Example 2, in some embodiments, the main speed sensor in the rotation detection mechanism may be implemented by a photoelectric sensor, a Hall sensor, an aberration speed sensor, an electromagnetic sensor, or an inductive sensor. Specifically, an electromagnetic sensor refers to a sensor that acquires a signal based on the induced electromotive force in a detection coil, and an inductive sensor refers to a sensor that acquires a signal based on changes in inductance or inductive reactance in a detection coil.

[0204] When the main speed sensor in the rotation detection mechanism is an electromagnetic sensor or an inductive sensor, at least one of the individual coils in the brake coil 801 can also serve as a speed measuring coil. The controller 900 is electrically connected to the speed measuring coil and calculates the rotor position signal of the winding drum based on the electrical signal containing rotor position information from the speed measuring coil. The rotation pulse signal is extracted based on the rotor position signal. This is achieved in the following manner:

[0205] When the main speed sensor is an electromagnetic sensor, the magnetic flux in the speed measuring coil changes when the rotor rotates at different positions, thereby generating an induced electromotive force. The rotor position signal of the winding drum is calculated based on the induced electromotive force signal generated in the speed measuring coil.

[0206] In the case where the main speed sensor is an inductive sensor, due to the salient pole effect, the inductance of the speed measuring coil will change when the rotor is in different rotational positions. The controller 900 injects a high-frequency voltage signal into the speed measuring coil, and the high-frequency current in the speed measuring coil will respond to the change in inductance. The high-frequency current response caused by the salient pole is detected and the rotor position signal is decoupled. In some embodiments, the high-frequency voltage can be selected in the range of 50mV to 2000mV, and the frequency of the high-frequency voltage can be selected between 100Hz and 50KHz. It should be noted that the above-mentioned voltage and frequency parameters select adaptive values ​​according to different application scenarios, or the technical personnel in this field select appropriate values ​​through a limited number of tests, and there is no limitation on this.

[0207] By using the above-mentioned electromagnetic sensor or inductive sensor detection method and using part or all of the individual coils of the brake coil as a speed sensor, system complexity can be reduced, reliability can be improved, and manufacturing costs can be saved.

[0208] Detecting the motor rotor position signal by measuring the induced electromotive force (EMF) or inductive impedance of the motor coil is a well-known traditional detection technology. For example, it is widely used in tachogenerators, resolvers, and brushless motors to detect the rotor position. Specific methods include EMF detection and high-frequency injection. Detecting the motor rotor position signal and extracting information such as rotation pulses and speed based on this principle are well-known traditional techniques for those skilled in the art.

[0209] In some embodiments, when the auxiliary rotation speed sensor is used as the rotation direction detection device, the auxiliary rotation speed sensor can be implemented by a photoelectric sensor, a Hall sensor, an electromagnetic sensor, or an inductive sensor.

[0210] (10) In some embodiments, the guide ring speed measuring mechanism 600 may also be implemented using the following wire rope speed measuring device:

[0211] As shown in Figure 19, a line speed measurement device according to one embodiment of the present application comprises a linear velocity sensor comprising a projected light source 601 and a light receiving portion 602. Guide rings 450 are provided on either side of the detection window. The linear velocity sensor and the guide rings are fixedly assembled to a connecting device. The measured line passes through the guide rings, which guide the measured line and maintain a measurable distance between the measured line and the linear velocity sensor. The measured line is a fishing line, and the linear velocity measurement device is equivalent to the guide ring speed measurement mechanism 600.

[0212] Among them, "fixed assembly" specifically refers to: a connection method that is fixed as one by one or more methods such as threaded connection, snap connection, rivet connection, clamp connection, bundling connection, welding, gluing or inlay connection, and the connected parts cannot move relative to each other, including detachable connection and / or non-detachable connection; it also includes a manufacturing method of integrally forming multiple parts such as integral casting, integral injection molding or integral stamping; it also includes a screw drive connection, in which the nut and the screw maintain a relatively fixed position relationship under the speed measurement working state.

[0213] Here, the "connecting device" specifically refers to: a combination of one or more components, which carries multiple functional components and is fixedly assembled thereon, and maintains a relatively fixed positional relationship between the assembled functional components in the speed measurement working state.

[0214] The "measurable distance" refers to the range of distance between the linear velocity sensor and the measured wire required to maintain stable operation. The measurable distance is determined by the specific application scenario. Those skilled in the art can determine the measurable distance based on theoretical calculations, empirical data, or through limited testing.

[0215] In this embodiment, the guide ring can be directly mounted on the linear velocity sensor housing, with the linear velocity sensor housing serving as a connecting device. The linear velocity sensor and the guide ring are fixedly connected as a whole via the housing. In some embodiments, the linear velocity sensor can also be provided with a light-transmitting sealing component in the detection window to protect the detection element.

[0216] Furthermore, as shown in FIG20 , the guide ring on one side can be fixedly mounted on the fishing rod, and the linear velocity sensor and the guide ring on the other side can be fixedly mounted as a whole before being fixedly mounted on the fishing reel. Alternatively, the linear velocity sensor and the guide ring on the other side can be fixedly mounted on the fishing reel body separately, with the fishing rod and the reel body serving as the connecting means. Furthermore, the linear velocity sensor and the guide ring can be fixedly mounted on the fishing rod separately, with the fishing rod serving as the connecting means.

[0217] In short, as long as the linear velocity sensor and guide ring maintain a fixed relative position during speed measurement, and the guide rings on either side of the linear velocity sensor's detection window guide the measured wire rope, maintaining a measurable distance between the measured wire rope and the linear velocity sensor, the wire rope speed measurement device can function. Under the conditions that meet these requirements, the linear velocity sensor and guide rings can be flexibly combined and configured using a connection device, all of which are within the capabilities of those skilled in the art.

[0218] [Controller 900 processing flow chart]

[0219] As shown in FIG9 , the controller 900 of some embodiments of the present application processes according to the following process:

[0220] First, when the work starts, the winding drum 200 rotates, and step S1a is executed to calculate the ring speed V based on the speed information of the guide ring speed measuring mechanism 600; at the same time, step S1b is executed to calculate the rotation speed V of the winding drum 200 based on the electrical pulse signal of the rotation detection mechanism 700. r ; At the same time, step S1c is performed to detect the rotation direction of the winding drum 200;

[0221] After steps S1a, S1b, and S1c are executed in parallel, the process proceeds to step S2 to determine the rotation direction of the winding drum 200;

[0222] If the direction of rotation of the winding drum 200 is to take up the line, the process goes to step S3 and the number of winding turns N is accumulated in the memory. r Then enter step S4, by the winding number N r , speed V r , the loop speed V is obtained to obtain the conversion relationship parameters; then enter step S5, the above conversion relationship parameters are stored in the memory;

[0223] If the rotation direction of the winding drum 200 is determined to be unwinding in step S2, the process goes to step S6 and the number of winding turns N is decremented in the memory. r ;

[0224] Then enter step S7, according to the winding number N r , speed V r And the corresponding conversion parameters to calculate the tangential speed V t ;

[0225] Then enter step S8, the tangential velocity V t Compare with the loop speed V and calculate the correction signal;

[0226] Then, the process proceeds to step S9, where the current in the brake coil 801 is controlled according to the correction signal to control the braking force.

[0227] After step S5 or step S9 is completed, the process proceeds to step S10 to determine whether the winding drum 200 has stopped rotating.

[0228] If the winding drum 200 has not stopped rotating, the process re-enters the parallel steps S1a, S1b, and S1c to start the next control cycle; otherwise, if the winding drum 200 has stopped rotating, the process ends.

[0229] Processing flow charts of other embodiments:

[0230] As shown in FIG10 , based on the above flowchart, step S3a is added between step S3 and step S4 to determine whether to calculate the conversion relationship parameter;

[0231] If the conversion relationship parameters need to be calculated, go to step S4;

[0232] If the conversion relationship parameter is not calculated, the process goes to step S10.

[0233] In some other embodiments, step S1a may be omitted when winding the fishing line, that is, there is no need to calculate the loop speed V when winding the fishing line, so as to reduce the workload of the processor and reduce energy consumption. Other Notes

[0234] The steps and / or operations in the flowcharts and figures described in this specification are for illustrative purposes only. In addition to the above examples, many variations of these steps and / or operations are possible without departing from the spirit of this application. For example, the steps may be performed in a different order, or steps may be added, deleted, or modified, or the execution content in the blocks may be modified.

[0235] Obviously, the present application is not limited to the precise structure described above and shown in the accompanying drawings. The embodiments described above are only part of the embodiments of the present application, not all of the embodiments. On the contrary, the embodiments of the present application include all changes, modifications, substitutions, variants and equivalents that fall within the spirit and connotation of the appended claims, and the said changes, modifications, substitutions, variants and equivalents; the parameters and variables involved are only examples used to illustrate the conceptual principles of the present application. Those skilled in the art can equivalently transform them into other parameter and variable expressions based on well-known mathematical and physical knowledge to achieve the same function without departing from the scope of the present application.

[0236] All descriptions of the left, right, front and rear directions involved in the embodiments of this application are based on the fishing reel with the right crank handle from the operator's perspective. For the fishing reel with the left crank handle, the same function can be achieved by simply swapping the "left" and "right" in the embodiment description.

[0237] It should be understood that the functional modules, components, steps, or schematic blocks disclosed in the embodiments of the present application may be implemented using hardware, software, firmware, or a combination thereof, and do not necessarily refer to specific hardware or software components that can be physically separated. Each functional unit may be integrated into a processing module, each unit may exist physically separately, or two or more units may be integrated into a single module.

[0238] In the embodiments of the present application, one or more components or steps may be implemented using software or firmware stored in a memory and executed by a suitable instruction execution system. For example, in one embodiment, the implementation may be implemented using hardware; in another embodiment, the implementation may be implemented by executing a program in the memory using any one or a combination of the following technologies known in the art: a discrete logic circuit having logic gate circuits configured to implement logic functions on data signals, an application-specific integrated circuit having suitable combinational logic gate circuits, a general-purpose processor (CPU), a programmable gate array (PGA), a field-programmable gate array (FPGA), etc.

[0239] It should be understood that the light source involved in the description of the embodiments of the present application that emits light or performs photoelectric conversion may be a laser or an ordinary light source, or may be visible light, infrared light, or ultraviolet light, without limitation.

Claims

1. A fishing reel electromagnetic brake device, wherein the fishing reel equipped with the electromagnetic brake device comprises a line guide ring and a spool for reeling and reeling in a rotating manner. The fishing reel electromagnetic brake device comprises a brake mechanism, wherein the brake mechanism comprises a brake coil and a magnetic brake member disposed opposite to each other, wherein one of the magnetic brake member and the brake coil rotates integrally with the spool to form a rotor, and the other of the magnetic brake member and the brake coil is disposed on the fishing reel body to form a stator. When the line is released, the magnetic brake member and the brake coil rotate relative to each other, and the interaction generates electromagnetic induction to brake the spool. The fishing reel electromagnetic brake device is characterized in that it further comprises: A guide ring speed measuring mechanism, which is a line speed sensor provided on the inner wall of the outlet line guide ring and configured to detect speed information of the fishing line passing through the outlet line guide ring; a rotation detection mechanism, which is provided on the fishing reel body and includes a main speed sensor and a rotation direction detection device, and is configured to detect rotation information of the spool, wherein the rotation information includes information of a rotation pulse and a rotation direction; A controller, disposed on the fishing reel body, comprising a processor, a memory, a current control unit, and an I / O interface, wherein the controller is electrically connected to the guide ring speed measuring mechanism and the rotation detection mechanism via the I / O interface, the current control unit is electrically connected to the brake coil, and the memory records and stores parameters of a conversion relationship between the number of winding turns, the rotational speed, and the tangential speed of the spool; When paying out the line, the controller controls the braking force of the winding drum in the following manner to achieve closed-loop control: Calculating the loop speed according to the speed information; calculating the rotation direction, rotation speed and winding turn count of the winding drum according to the rotation information, and storing the winding turn count value in the memory; When the rotation direction of the winding drum is to unwind, the tangential speed is calculated based on the number of winding turns, the rotation speed and the conversion relationship parameters of the winding drum, and a correction signal for correcting the winding drum rotation speed is calculated based on the tangential speed and the loop speed at that time. The electromagnetic induction current in the brake coil is controlled by the current control unit based on the correction signal.

2. The fishing reel electromagnetic brake device according to claim 1, wherein: The guide ring speed measuring mechanism detects the speed information and sends it to the controller for processing, which is implemented in any of the following ways: The guide ring speed measuring mechanism further includes a projected light source and a photoelectric sensor. The fishing line used is separated by color segments of different reflectivity with fixed marking lengths. The projected light source illuminates the fishing line, and the photoelectric sensor converts the detected reflected light signal into an electrical pulse signal. The electrical pulse signal and the fixed marking length are used to calculate the speed of the guide ring. Alternatively, the guide ring speed measuring mechanism further includes a projection light source and an image sensor, wherein the projection light source illuminates the fishing line, and the image sensor picks up local image information of the moving fishing line at fixed time intervals. The controller performs a front-to-back comparison analysis on the local image, and the distance the local image moves at the fixed time interval is used to calculate the speed of the guide ring; Alternatively, the guide ring speed measuring mechanism is a magnetic sensor, and the fishing line used is separated by magnetic marks of fixed mark length. The magnetic sensor converts the detected magnetic signal into an electrical pulse signal, and the electrical pulse signal and the fixed mark length are used to calculate the speed of the ring.

3. The fishing reel electromagnetic brake device according to claim 1 or 2, wherein: The controller controls the electromagnetic induction current in the brake coil in any of the following ways: The current control unit is a switch element, and the correction signal controls the switching element to be turned on and off in an on-off switching manner; Alternatively, the current control unit is a switch element, and the correction signal controls the duration of on and off of the switch element by adjusting the duty cycle of a PWM signal; Alternatively, the current control unit is a current intensity regulating element, and the correction signal regulates the current intensity in the current intensity regulating element in a manner of varying strength.

4. The fishing reel electromagnetic brake device according to any one of claims 1 to 3, wherein: The closed-loop control is implemented in any of the following ways: The loop speed is used as the input target control quantity, and the tangential speed is used as the output controlled quantity and feedback quantity; Alternatively, the set allowable speed difference threshold is used as the input target control variable, and the difference between the tangential speed and the loop speed is used as the output controlled variable and feedback variable; Alternatively, the set allowable floating line length threshold is used as the input target control variable, and the floating line length is used as the output controlled variable and feedback variable; Alternatively, the set integral difference control value is used as the input target control quantity, and the speed integral difference value is used as the output controlled quantity and feedback quantity.

5. The fishing reel electromagnetic brake device according to any one of claims 1 to 4, wherein: The main rotation speed sensor is a photoelectric sensor, a Hall sensor, an aberration speed sensor, an electromagnetic sensor, or an inductive sensor.

6. A fishing line, characterized in that: It has a signal mark interval with a fixed mark length. The signal mark can be detected by the guide ring speed measuring mechanism of the fishing reel and converted into an electric pulse signal. The electric pulse signal and the fixed mark length are used to calculate the speed of the ring. The signal mark interval is formed by color segments with different reflectivity. The guide ring speed measuring mechanism has a projection light source and a photoelectric sensor.

7. A fishing line, characterized in that: It has a signal mark interval with a fixed mark length, and the signal mark can be detected by the guide ring speed measuring mechanism of the fishing reel and converted into an electric pulse signal. The electric pulse signal and the fixed mark length are used to calculate the speed of the guide ring; Magnetic material is attached to the fishing line, the signal mark interval is formed by recording a series of magnetic signals, and the guide ring speed measurement mechanism has a magnetic sensitive sensor.

8. A speed measuring mechanism, characterized in that: The speed measuring mechanism is a linear velocity sensor provided on the inner wall of the line guide ring, which is configured to detect the speed information of the fishing line passing through the line guide ring, and is implemented in any of the following ways: The speed measuring mechanism further includes a projected light source and a photoelectric sensor. The fishing line used is separated by color segments of different reflectivity with a fixed mark length. The projected light source illuminates the fishing line. The photoelectric sensor converts the detected reflected light signal into an electrical pulse signal. The electrical pulse signal and the fixed mark length are used to calculate the loop speed. Alternatively, the speed measuring mechanism further comprises a projection light source and an image sensor, wherein the projection light source illuminates the fishing line, and the image sensor picks up local image information of the moving fishing line at fixed time intervals, wherein the local image is subjected to front-to-back comparison analysis and processing, and the distance moved by the local image at the fixed time interval is used to calculate the loop speed; Alternatively, the speed measuring mechanism is a magnetic sensor, and the fishing line used is separated by magnetic marks of fixed mark length. The magnetic sensor converts the detected magnetic signal into an electrical pulse signal, and the electrical pulse signal and the fixed mark length are used to calculate the speed through the loop.

9. The speed measuring mechanism according to claim 8, characterized in that: In the case where the speed measuring mechanism has a photoelectric sensor or an image sensor, the speed measuring mechanism also has a light escape notch arranged on the inner wall of the line outlet guide ring, and the detection direction of the linear speed sensor is facing the light escape notch; in the case where the speed measuring mechanism is realized by a magnetic sensor, the magnetic sensor is a magnetic head protruding from the inner wall of the line outlet guide ring, and the speed measuring mechanism also has a positioning support arranged on the inner wall of the line outlet guide ring, and the positioning support keeps the gap between the fishing line in the line outlet guide ring and the magnetic head at 0 or maintains a stable working gap.

10. A wire rope speed measuring device, comprising a wire rope speed sensor, characterized in that: Guide rings are provided on both sides of the detection window of the linear velocity sensor. The linear velocity sensor and the guide rings are fixedly assembled on the connecting device. The measured rope passes through the guide rings. The guide rings guide the measured rope so that a measurable distance is maintained between the measured rope and the linear velocity sensor. The line speed measuring device is configured as a fishing reel to measure the reeling and releasing line speed of the fishing line, and the measured line is the fishing line; the line speed sensor is a reflection speed sensor or an aberration speed sensor.

11. The wire speed measuring device according to claim 10, wherein: The connecting device is the shell of the linear velocity sensor, and the linear velocity sensor and the guide ring are fixedly connected as a whole through the shell; or, the connecting device is at least one of a fishing rod and a fishing reel, and the linear velocity sensor and the guide ring maintain a relatively fixed position relationship in the speed measuring working state.

12. A fishing reel electromagnetic brake device, applied to a fishing reel having a line guide ring and a spool, comprising a brake coil and a magnetic brake member that rotates integrally with the spool. The brake coil is fixed to the reel body and brakes the spool via electromagnetic induction during line release. The device also includes: a guide ring speed measuring mechanism, which is a line speed sensor disposed at the line outlet of the fishing reel and is configured to detect speed information of the fishing line passing through the outlet guide ring, wherein the fishing line has a sequence of spaced signal markers, and the sequence of signal markers matches the geometric parameters of the spool, such that the interval length of the signal marker sequence increases or decreases proportionally with the increase or decrease in the winding diameter of the fishing line on the spool, and the ratio between the interval length of the signal marker sequence and the corresponding winding diameter meets a preset value; a rotation detection mechanism, which is provided on the fishing reel body and includes a rotation speed sensor configured to detect rotation speed information of the spool; a controller, which is provided on the fishing reel body and includes a processor, a memory, and a current control unit, the controller being electrically connected to the guide ring speed measuring mechanism and the rotation detection mechanism, the current control unit being electrically connected to the brake coil, and the memory storing the preset value; When paying out the line, the controller performs closed-loop control in the following manner: the controller calculates the number of signal marks of the fishing line passing through the outlet and the rotation angle of the winding drum within the same time period, calculates the loop speed and the tangent speed based on the number of signal marks, the rotation angle of the winding drum and the preset value, and calculates the correction signal for correcting the winding drum rotation speed, and controls the electromagnetic induction current in the brake coil through the current control unit based on the correction signal.

13. The fishing reel electromagnetic brake device according to claim 12, wherein: The line speed sensor is arranged on the inner wall or side of the fishing reel outlet guide ring, and its detection direction is directed to the fishing line passing through the outlet. The guide ring speed measuring mechanism detects the speed information and sends it to the controller for processing, which is implemented in any of the following ways: The guide ring speed measurement mechanism further includes a projected light source and a photoelectric sensor, wherein the signal mark sequence is formed by color segments of different reflectivity at intervals, the projected light source illuminates the fishing line, and the photoelectric sensor converts the detected reflected light signal into an electrical pulse signal; Alternatively, the guide ring speed measuring mechanism is a magnetic sensor, the signal mark sequence is formed by magnetic marks spaced apart from each other, and the magnetic sensor converts the detected magnetic signal into an electrical pulse signal.

14. The fishing reel electromagnetic brake device according to claim 12 or 13, wherein: The controller controls the electromagnetic induction current in the brake coil in any of the following ways: The current control unit is a switch element, and the correction signal controls the switching element to be turned on and off in an on-off switching manner; Alternatively, the current control unit is a switch element, and the correction signal controls the duration of on and off of the switch element by adjusting the duty cycle of a PWM signal; Alternatively, the current control unit is a current intensity regulating element, and the correction signal regulates the current intensity in the current intensity regulating element in a manner of varying strength.

15. The fishing reel electromagnetic brake device according to any one of claims 12 to 14, wherein: The closed-loop control is implemented in any of the following ways: The loop speed is used as the input target control quantity, and the tangential speed is used as the output controlled quantity and feedback quantity; Alternatively, the set allowable speed difference threshold is used as the input target control variable, and the difference between the tangential speed and the loop speed is used as the output controlled variable and feedback variable; Alternatively, the set allowable floating line length threshold is used as the input target control variable, and the floating line length is used as the output controlled variable and feedback variable; Alternatively, the set integral difference control value is used as the input target control quantity, and the speed integral difference value is used as the output controlled quantity and feedback quantity.

16. The fishing reel electromagnetic brake device according to any one of claims 12 to 15, wherein: The rotation speed sensor is a photoelectric sensor, a Hall sensor, an aberration speed sensor, an electromagnetic sensor, or an inductive sensor.

17. A fishing line, characterized in that: Matched for use with the fishing reel electromagnetic brake device as described in any one of claims 12 to 16.

18. A fishing reel electromagnetic brake device, applied to a fishing reel having a line 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 is fixed to the fishing reel body and brakes the spool via electromagnetic induction during line release. The fishing reel electromagnetic brake device is characterized by further comprising: A guide ring speed measuring mechanism, which is a line speed sensor provided at the line outlet of the fishing reel and configured to detect the line passing speed; a spool aberration speed measuring device, which is disposed on the fishing reel body and has a detection direction pointing toward the surface fishing line of the spool, and is configured to detect the tangential speed of the surface fishing line; a controller, which is provided on the fishing reel body and includes a processor, a memory and a current control unit, the controller being electrically connected to the guide ring speed measuring mechanism, and the current control unit being electrically connected to the brake coil; When paying out the line, the controller performs closed-loop control. The controller calculates a correction signal for correcting the winding drum speed based on the loop speed and the tangential speed, and controls the electromagnetic induction current in the brake coil through the current control unit based on the correction signal.

19. The fishing reel electromagnetic brake device according to claim 18, wherein: The line speed sensor is arranged on the inner wall or side of the fishing reel outlet guide ring so that the detection direction points to the fishing line output by the outlet guide ring. The guide ring speed measuring mechanism detects the speed information and sends it to the controller for processing, which is implemented in any of the following ways: The guide ring speed measurement mechanism further includes a projected light source and a photoelectric sensor. The fishing line used is separated by color segments of different reflectivity with fixed marking lengths. The projected light source illuminates the fishing line, and the photoelectric sensor converts the detected reflected light signal into an electrical pulse signal. The electrical pulse signal and the fixed marking length are used to calculate the speed of the guide ring. Alternatively, the guide ring speed measuring mechanism further includes a projection light source and an image sensor, wherein the projection light source illuminates the fishing line, and the image sensor picks up local image information of the moving fishing line at fixed time intervals. The controller performs a front-to-back comparison analysis on the local image, and the distance the local image moves at the fixed time interval is used to calculate the speed of the guide ring; Alternatively, the guide ring speed measuring mechanism is a magnetic sensor, and the fishing line used is separated by magnetic marks of fixed mark length. The magnetic sensor converts the detected magnetic signal into an electrical pulse signal, and the electrical pulse signal and the fixed mark length are used to calculate the speed of the ring.

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