Intelligent variable frequency electromagnetic brake method, system and fishing reel

Abstract

The application discloses a kind of intelligent variable frequency electromagnetic brake method, system and fishing reel.The method comprises: brake force data under different fishing modes are constructed in advance;The current rotation frequency of the line cup of the fishing reel is collected when casting under the current fishing mode;The current brake force corresponding to the current rotation frequency of the line cup is calculated according to the brake force data corresponding to the current fishing mode.The application can adaptively match the corresponding brake force according to the current rotation frequency of the line cup when casting under different fishing modes, and can output different brake forces to control the rotation speed of the line cup in different flight stages, thereby achieving the effects of precise casting, ultra-long casting and anti-bombing line.

Description

Technical Field

[0001] This invention relates to the field of fishing data processing technology, and in particular to an intelligent variable frequency electromagnetic braking method, system and fishing reel. Background Technology

[0002] Current fishing reel braking systems typically employ centrifugal braking, magnetic braking, and electromagnetic braking. Centrifugal and magnetic braking rely on mechanical structures for braking control, resulting in linear braking force curves that are difficult to alter during casting and require manual intervention. Electromagnetic braking systems, on the other hand, work by rotating the spool relative to the side cover during casting. A magnet on the spool and a coil module on the side cover generate electromagnetic induction. When the control coil module is closed, it produces a magnetic field opposite to the magnet, thus hindering the spool's rotation. When the control coil module is open, it cannot generate a magnetic field, and the spool rotates unimpeded. Therefore, by inputting a fixed braking frequency to control the opening and closing of the coil module, the braking force can be controlled by varying the duty cycle of the braking frequency.

[0003] However, with the development of fishing reels, anglers use different casting postures in different fishing scenarios, with different types of bait and different bait weights, which causes the spool speed to fluctuate greatly. That is, a fixed braking frequency cannot be adapted to low and high speeds. When the spool speed exceeds the control frequency, the braking response will be untimely, resulting in line breakage. When the spool speed is lower than the control frequency, the braking force will be too great, resulting in a short casting distance. Summary of the Invention

[0004] The purpose of this invention is to provide an intelligent variable frequency electromagnetic braking method, system, and fishing reel, aiming to solve the problem that the braking force control of existing electromagnetic braking systems is difficult to match the real-time rotation speed of the fishing spool in a timely manner.

[0005] In a first aspect, embodiments of the present invention provide an intelligent variable frequency electromagnetic braking method, applied to a fishing reel, characterized in that it includes:

[0006] Pre-build braking force data for different fishing modes;

[0007] Collect the current rotation frequency of the fishing reel's spool during casting in the current fishing mode;

[0008] The current braking force corresponding to the current rotation frequency of the spool is calculated based on the braking force data corresponding to the current fishing mode.

[0009] Secondly, embodiments of the present invention provide an intelligent variable frequency electromagnetic braking system, comprising:

[0010] Construction unit, used to pre-build braking force data for different fishing modes;

[0011] The data acquisition unit is used to acquire the current rotation frequency of the fishing reel spool during casting in the current fishing mode;

[0012] The calculation unit is used to calculate the current braking force corresponding to the current rotation frequency of the spool based on the braking force data corresponding to the current fishing mode.

[0013] Thirdly, embodiments of the present invention provide a fishing reel, including the intelligent variable frequency electromagnetic braking system described above.

[0014] The beneficial effects of this invention are: when casting in different fishing modes, the corresponding braking force can be adaptively matched according to the current rotation frequency of the spool, and different braking forces can be output in different flight stages to control the spool rotation speed, thereby achieving the effects of accurate casting, ultra-long casting and line breakage prevention. Attached Figure Description

[0015] To more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the following description of the embodiments will be briefly introduced. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 A flowchart illustrating the intelligent variable frequency electromagnetic braking method provided in an embodiment of the present invention;

[0017] Figure 2 A schematic diagram of a sub-process of the intelligent variable frequency electromagnetic braking method provided in an embodiment of the present invention;

[0018] Figure 3 This is another sub-process diagram of the intelligent variable frequency electromagnetic braking method provided in the embodiment of the present invention;

[0019] Figure 4 This is another sub-process diagram of the intelligent variable frequency electromagnetic braking method provided in the embodiment of the present invention;

[0020] Figure 5 This is another sub-process diagram of the intelligent variable frequency electromagnetic braking method provided in the embodiment of the present invention;

[0021] Figure 6 This is another sub-process diagram of the intelligent variable frequency electromagnetic braking method provided in the embodiment of the present invention;

[0022] Figure 7 This is another sub-process diagram of the intelligent variable frequency electromagnetic braking method provided in the embodiment of the present invention;

[0023] Figure 8 A schematic block diagram of an intelligent variable frequency electromagnetic braking system provided in an embodiment of the present invention;

[0024] Figure 9 This is an example diagram of a single throw data provided in an embodiment of the present invention. Detailed Implementation

[0025] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0026] It should be understood that, when used in this specification and the appended claims, the terms "comprising" and "including" indicate the presence of the described features, integrals, steps, operations, elements and / or components, but do not exclude the presence or addition of one or more other features, integrals, steps, operations, elements, components and / or collections thereof.

[0027] It should also be understood that the terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to limit the invention. As used in this specification and the appended claims, the singular forms “a,” “an,” and “the” are intended to include the plural forms unless the context clearly indicates otherwise.

[0028] It should also be further understood that the term "and / or" as used in this specification and the appended claims refers to any combination of one or more of the associated listed items and all possible combinations, and includes such combinations.

[0029] Please see Figure 1 , Figure 1 A flowchart illustrating the intelligent variable frequency electromagnetic braking method provided in an embodiment of the present invention;

[0030] like Figure 1 As shown, the method includes steps S101 to S103.

[0031] S101, Pre-build braking force data for different fishing modes;

[0032] In this step, different fishing modes are applied to different fishing scenarios, bait types, and bait weight ranges. Corresponding to the spool rotation speed under different fishing modes, the required braking force also varies. Therefore, corresponding braking force data can be constructed for each fishing mode. Braking force data refers to the current braking force information for the current spool rotation speed under different fishing modes. The greater the braking force, the greater the resistance to line release from the spool. It should be noted that braking force can be characterized in different ways. In this embodiment, duty cycle can be used. The larger the duty cycle, the greater the braking force. The braking force mentioned below refers to the duty cycle. However, obviously, other data indicators can be used to characterize braking force in other embodiments, and such substitutions or modifications are within the scope of protection of this application.

[0033] S102. Collect the current rotation frequency of the fishing reel spool when casting in the current fishing mode;

[0034] In this step, the speed detection module on the fishing reel can be used to detect the spool rotation speed, thereby determining the current rotation frequency of the spool. During casting, the magnet on the spool rotates with the spool. The speed detection module detects the rotation data of the magnet. Each rotation generates a square wave periodic pulse signal. The square wave periodic pulse signal changes from high to low and then back to high. When the signal goes low, interrupt 1 is triggered and a timer starts counting. When the signal changes from low to high, interrupt 2 is triggered and one count is completed. The number of counts (Latest_tick_sub) counted by the timer per second is counted. The current rotation frequency (Hz) of the spool can be calculated using the formula gInputFre(Hz) = 32768 / Latest_tick_sub, where 32768 is the 32768 counts that the clock can generate per second.

[0035] S103. Calculate the current braking force corresponding to the current rotation frequency of the spool based on the braking force data corresponding to the current fishing mode.

[0036] In this step, the corresponding braking force data is obtained based on the fishing mode currently selected by the user (i.e., the current fishing mode). Then, after obtaining the current rotation frequency of the spool based on the method in step S102, the current braking force corresponding to the current rotation frequency of the spool can be calculated based on the braking force data corresponding to the current fishing mode.

[0037] In this embodiment, when casting in different fishing modes, each casting will have different flight stages (i.e., the ascent stage and the descent stage). The current rotation frequency of the spool is different in different flight stages. This embodiment can adaptively match the corresponding braking force according to the current rotation frequency of the spool, and output different braking forces in different flight stages to control the spool rotation speed, thereby achieving the effects of accurate casting, ultra-long casting and line breakage prevention.

[0038] In one embodiment, such as Figure 2As shown, step S101 includes:

[0039] S201. Define a variety of different fishing modes according to one or more of the following: fishing scenario, bait type and bait weight range. Different fishing modes include at least one of the following: high wind resistance mode, long casting mode, light bait mode, float mode, swaying casting mode and general mode.

[0040] S202. Construct the first braking force data for each fishing mode during the rising phase of casting, where the rising phase refers to the change in the current rotation frequency of the spool during casting.

[0041] S203. Construct the second braking force data for each fishing mode during the descent phase of casting, where the descent phase refers to the change in the current rotation frequency of the spool during casting.

[0042] In this embodiment, the braking force data corresponding to different fishing modes are different. For example, in the comparison between the high-wind-resistance mode and the long-casting mode, the high-wind-resistance mode corresponds to fishing scenarios with wind resistance during casting. In this scenario, the bait is not easy to cast far, so the spool needs to have relatively large braking force to avoid the spool speed being too fast, causing the line speed to be much greater than the bait's movement speed, thus risking line breakage. On the other hand, the long-casting mode corresponds to fishing scenarios with a tailwind during casting. In this scenario, the bait moves faster with the help of the wind, so the spool needs to have less braking force to avoid the spool speed and line speed not keeping up with the bait's movement speed, thus preventing casting further. In addition, different bait types and weight ranges also affect the bait's movement speed. For example, baits with a large weight and low wind resistance are suitable for the long-casting mode. Based on this, this embodiment sets multiple braking force data for different fishing modes for users to choose according to actual conditions.

[0043] In this embodiment, for each fishing mode, different braking force data needs to be subdivided for different flight stages during casting. Taking the ascending and descending stages as examples, in the ascending stage, the inertial force of the bait being thrown drives the spool to rotate and release line. The rotation speed of the spool in this stage follows the speed of the bait being thrown. Therefore, the change in the current rotation frequency of the spool in the ascending stage is upward until it reaches the maximum rotation frequency of this casting. Relatively speaking, it is not necessary to add too much braking force to the spool. However, when the casting moves from the ascending stage to the descending stage, the speed of the bait decreases and it no longer drives the spool to rotate and release line. At this time, the spool can still rotate at a high speed due to rotational inertia. Therefore, it is necessary to increase the braking force of the spool so that the change in the current rotation frequency of the spool continues to decrease, in order to avoid the spool rotating too fast and causing the line release speed to be much greater than the speed of the bait, thereby preventing line breakage. It should be noted that, in order to more accurately determine the descending stage, the judgment condition for the casting to move from the ascending stage to the descending stage is: the number of times the current rotation frequency of the spool is continuously lower than the previous rotation frequency reaches a preset number, preferably 5 times (which can be customized according to actual needs). For example, starting from time t1, there are the following consecutive times: t1, t2, t3, t4, t5, t6. The current rotation frequency of the spool at time t1 is q1, the current rotation frequency of the spool at time t2 is q2, the current rotation frequency of the spool at time t3 is q3, the current rotation frequency of the spool at time t4 is q4, the current rotation frequency of the spool at time t5 is q5, and the current rotation frequency of the spool at time t6 is q6. When q1>q2>q3>q4>q5>q6, the descent phase is reached.

[0044] This embodiment uses Figure 9 The flight phase is described using a single throw as an example. The ascent phase can include the initial acceleration phase T1 and the continuous acceleration phase T2. The descent phase can include the high-speed exit phase T3 and the tail flight phase T4. In the initial acceleration phase T1, the rotational frequency changes upward, with the fastest upward change and the shortest duration. The rotational frequency corresponding to T1 is 0-450. In the continuous acceleration phase T2, the rotational frequency changes upward, with the upward change gradually slowing down and the duration gradually increasing. The corresponding rotational frequency is 451-800, and the maximum rotational frequency (i.e., the highest point of the parabola of the throw) is 800. In the high-speed exit phase T3, the rotational frequency changes downward, with the fastest downward change and the shortest duration. The corresponding rotational frequency is 800-500. In the tail flight phase T4, the rotational frequency changes downward, with the downward change gradually slowing down and the duration gradually increasing.

[0045] Based on this, this embodiment constructs corresponding first braking force data and second braking force data for the rising and falling phases, respectively. When the system detects a decrease in spool speed, the system automatically switches from using the first braking force data to using the second braking force data, and adaptively adjusts the current braking force based on the current spool rotation frequency, thereby achieving precise spool speed control.

[0046] The following details the construction of the first braking force data for each fishing mode during the ascent phase of casting. It should be noted that the braking force in this application can be represented by the duty cycle; that is, the larger the duty cycle, the greater the braking force. The braking force data in the following examples are all expressed as a percentage of the duty cycle.

[0047] In one embodiment, such as Figure 3 As shown, step S202 includes:

[0048] S301, Construct multi-level gears and multi-level rotation frequency ranges for each fishing mode;

[0049] S302. Set the braking force for each gear level and each rotation frequency range in each fishing mode; wherein, under the same gear level, the larger the rotation frequency range level, the greater the braking force; under the same rotation frequency range level, the larger the gear level, the greater the braking force.

[0050] In this embodiment, multiple gear levels and multiple rotation frequency ranges can be set for each fishing mode. The number of gear levels and rotation frequency ranges can be set according to actual needs, and the specific range value of the rotation frequency range can also be set according to actual needs. For ease of understanding, the first braking force data of the general-purpose mode is used as an example, as shown in Table 1 below:

[0051] Table 1

[0052]

[0053] In Table 1, the gears in the general-purpose mode can be set to X gears, where Q1 is the minimum level rotation frequency range, Qi is the maximum level rotation frequency range, min represents the minimum braking force, and max represents the maximum braking force. Q1 to Qi increase linearly with a preset rotation frequency increment; A1% to Aa% increase linearly with a preset increment, B1% to Bb% increase linearly with a preset increment, and so on. This allows us to know the braking force corresponding to each of the X gears within each rotation frequency range Q, where A1% < B1% < ... < I1%. Based on this, during the upward phase of casting, the rotation frequency range Q can be queried based on the collected current spool rotation frequency, and the corresponding current braking force can be adaptively matched in real time according to the current level gear.

[0054] It should be noted that, on the one hand, during the ascent phase of each fishing mode, a minimum braking start frequency is set for that phase. When the current rotation frequency of the spool is less than the corresponding minimum braking start frequency, the minimum braking force (min) is applied to the current braking force at each gear level. For example, the minimum braking start frequency in Table 1 is the maximum frequency value within the rotation frequency range Q2. The minimum braking force (min) is applied to the current rotation frequency of the spool when it is less than the maximum frequency value within Q2. It should be understood that when the current rotation frequency of the spool is in the range of Q1 to Q2, it refers to the instant the bait flies out at the start of casting. At the beginning of casting, no braking force is applied to the spool to allow the bait to fly out better. The braking force is adjusted based on the current rotation frequency of the spool to ensure precise control of the spool rotation speed. On the other hand, during the ascent phase of each fishing mode, a maximum braking activation frequency is set for each gear level during the ascent phase. The maximum braking force (max) is applied when the current spool rotation frequency is greater than or equal to the corresponding maximum braking activation frequency. The higher the gear level, the smaller the frequency range (Q) corresponding to the maximum braking activation frequency (max). It should also be noted that the specific values ​​of the minimum braking force (min) and the maximum braking force (max) can be set according to actual needs.

[0055] The following section details the second braking force data for each fishing mode during the descent phase of casting.

[0056] In one embodiment, such as Figure 4 As shown, step S203 includes:

[0057] S401, Construct multi-level gears for each fishing mode;

[0058] S402. Set the maximum braking force, minimum braking force and descent coefficient for each gear level, wherein the higher the gear level, the greater the corresponding minimum braking force and descent coefficient;

[0059] S403. The formula for calculating the current selectable braking force (which can be the duty cycle) during the descent phase is: Current spool rotation frequency / Maximum rotation frequency * Current descent coefficient.

[0060] In this embodiment, during the descent phase of casting, the current spool rotation frequency in each fishing mode also needs to be adaptively matched with the corresponding current braking force to achieve precise control of the spool rotation speed; the following table 2 continues to illustrate this using the second braking force data of the general-purpose mode as an example:

[0061] Table 2

[0062]

[0063] In Table 2, the general-purpose mode has X gears. It should be noted that the number of gears for the ascent and descent phases can be the same or different in each fishing mode; it is preferred to use the same number of gears. In multiple fishing modes, the number of gears used for each mode can be the same or different; it is preferred to use the same number of gears. Furthermore, the maximum braking force at each gear level can be set to the same value.

[0064] Table 2 shows the maximum and minimum braking forces for each gear level during the descent phase in general-purpose mode. G1% < G2% < G3% < ... < max, and the descent coefficients F1% to Ff% increase linearly with a preset increment. A tail rotation frequency of W indicates that the spool has essentially stopped rotating, meaning the bait has essentially finished its flight, and no further braking force is needed. The tail braking force corresponding to a tail rotation frequency of W is min. When the tail rotation frequency is completely 0, it indicates that the bait has hit the water, the casting is complete, and braking ends. It should be noted that the max and min values ​​set during the descent and ascent phases can be the same or different, depending on actual needs.

[0065] Based on the parameters defined in Table 2, the current braking force is calculated using the formula for calculating the current candidate braking force during the descent phase. The calculated result is then taken within the range between the maximum and minimum braking force to obtain the current braking force.

[0066] The following section details the method for calculating the current braking force corresponding to the current rotation frequency of the spool during the rising phase.

[0067] In one embodiment, such as Figure 5 As shown, step S103 includes:

[0068] S501, Get the current fishing mode and current gear;

[0069] S502. Collect the current rotation frequency of the spool during the rising phase of the casting process;

[0070] S503. Match the current rotation frequency range of the spool to the corresponding first braking force data based on the current rotation frequency of the spool.

[0071] S504. Obtain the corresponding braking force based on the current rotation frequency range of the spool and the current gear, and use it as the current braking force.

[0072] In this embodiment, based on the user-selected current fishing mode and gear, the speed detection module on the fishing reel collects the current rotation frequency of the spool in real time during casting. When the change in the current rotation frequency of the spool is upward, the current stage is determined to be the upward stage. During the upward stage, the current rotation frequency of the spool is collected in real time, and the current rotation frequency of the spool is matched with the corresponding first braking force data to determine the current rotation frequency range of the spool. Combined with the current gear set by the user, the corresponding current braking force is output. Based on this, by collecting the current rotation frequency of the spool in real time during the upward stage, the corresponding current braking force can be adaptively matched every time the current rotation frequency of the spool changes to a different rotation frequency range and a different gear, thereby achieving precise control of the spool rotation speed.

[0073] The following section details the method for calculating the current braking force corresponding to the current rotation frequency of the spool during the descent phase.

[0074] In one embodiment, such as Figure 6 As shown, step S103 includes:

[0075] S601, Obtain the current fishing mode and current gear;

[0076] S602. Collect the maximum rotation frequency during casting and the current rotation frequency of the spool during the descent phase;

[0077] S603. Calculate the ratio of the current rotation frequency of the spool to the maximum rotation frequency and use it as the current frequency ratio. Then, multiply the current frequency ratio by the corresponding descent coefficient and use it as the current selectable braking force.

[0078] S604. When the current selected braking force is greater than or equal to the corresponding maximum braking force, the maximum braking force shall be used as the current braking force.

[0079] S605. When the current selected braking force is less than or equal to the corresponding minimum braking force, the minimum braking force shall be used as the current braking force.

[0080] S606. When the current selected braking force is less than the corresponding maximum braking force but greater than the corresponding minimum braking force, the current selected braking force shall be used as the current braking force.

[0081] In this embodiment, based on the user-selected current fishing mode and gear, the speed detection module on the fishing reel collects the current rotation frequency of the spool in real time during casting. When the change in the current rotation frequency of the spool is a continuous decrease reaching a preset number of times, the current stage is determined to be the descent stage. During the descent stage, the current rotation frequency of the spool is collected in real time, and the current rotation frequency of the spool is substituted into the calculation formula for the current candidate braking force in the descent stage. The calculation result is output as the current candidate braking force. Then, the current candidate braking force is compared with the corresponding maximum braking force and minimum braking force in steps S604, S605, and S606 to confirm the final current braking force. For ease of understanding, the following example is used for illustration:

[0082] Assuming the user selects the 3rd gear in general-purpose mode for casting, the result will be:

[0083] Current selectable braking force = Current spool rotation frequency / Maximum rotation frequency * F3%;

[0084] If the calculated braking force of the current candidate is greater than or equal to max, then the current braking force is max.

[0085] If the calculated result of the current candidate braking force is less than or equal to G3%, then the current braking force is G3%.

[0086] If the calculated result of the current candidate braking force is between G3% and max, then the current braking force is the current calculated result.

[0087] In a specific scenario, assuming the maximum rotation frequency during casting is W1, and the current rotation frequency of the spool during the descent phase is W2, the current selectable braking force is W2 / W1*F3%. Assuming the calculation result is K%, if K% is between G3% and max, then the current braking force corresponding to the current rotation frequency W2 of the spool is K%; if K% is less than or equal to G3%, then the current braking force is G3; if K% is greater than or equal to max, then the current braking force is max.

[0088] In one embodiment, such as Figure 7 As shown, the intelligent variable frequency electromagnetic braking method of the present invention further includes:

[0089] S701: Collect the current line distance from the spool when casting in the current fishing mode;

[0090] S702. Calculate the ratio of the current line output distance of the spool to the preset target distance and use it as the current distance ratio;

[0091] S703. Match the corresponding braking force based on the current distance ratio, wherein the current distance ratio and the braking force are positively correlated.

[0092] In this embodiment, a distance dataset corresponding to the line release distance under different line release numbers on the fishing reel can be pre-built. During casting, the current line release number of the spool is collected by sensor components installed on the fishing reel, and the current line release distance corresponding to the current line release number is calculated based on the distance dataset. After casting, according to the preset target distance X, as the current line release distance approaches the preset target distance X, the braking force on the spool is continuously increased to control the final line release distance to be as close as possible to the target distance X, thereby achieving the effect of targeted casting.

[0093] Specifically, the ratio of the current distance to the preset target distance can be calculated and used as the current distance ratio. The greater the current distance ratio and the closer it is to 1, the greater the braking force required. That is, the current distance ratio and the braking force are positively correlated. In this way, multiple sets of relationships between multiple distance ratio ranges and multiple braking force magnitudes can be pre-built. Based on the calculated current distance ratio, the corresponding distance ratio range can be queried to match the corresponding braking force magnitude. This allows the corresponding braking force to be executed in real time according to the change of the current distance ratio, so as to achieve the effect of precise throwing.

[0094] This invention also provides an intelligent variable frequency electromagnetic braking system, which is used to execute any of the aforementioned intelligent variable frequency electromagnetic braking methods. Specifically, please refer to... Figure 8 , Figure 8 This is a schematic block diagram of the intelligent variable frequency electromagnetic braking system provided in the embodiments of the present invention.

[0095] like Figure 8 As shown, the intelligent variable frequency electromagnetic braking system 800 includes: a construction unit 801, a data acquisition unit 802, and a computing unit 803.

[0096] Construction unit 801 is used to pre-build braking force data for different fishing modes;

[0097] The acquisition unit 802 is used to acquire the current rotation frequency of the fishing reel spool when casting in the current fishing mode;

[0098] The calculation unit 803 is used to calculate the current braking force corresponding to the current rotation frequency of the spool based on the braking force data corresponding to the current fishing mode.

[0099] When casting in different fishing modes, the system can adaptively match the corresponding braking force according to the current rotation frequency of the spool. It can output different braking forces at different stages of flight to control the spool rotation speed, thereby achieving the effects of accurate casting, ultra-long casting and line breakage prevention.

[0100] This invention also provides a fishing reel, including the intelligent variable frequency electromagnetic braking system described above.

[0101] Those skilled in the art will understand that, for the sake of convenience and brevity, the specific working process of the system and unit described above can be referred to the corresponding process in the foregoing method embodiments, and will not be repeated here.

[0102] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any person skilled in the art can easily conceive of various equivalent modifications or substitutions within the technical scope disclosed in the present invention, and these modifications or substitutions should all be covered within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the scope of the claims.

Claims

1. A smart variable frequency electromagnetic braking method, applied to fishing reels, characterized in that, include: Pre-construct braking force data for different fishing modes; specifically including: constructing first braking force data for each fishing mode during the rising phase of casting, wherein the rising phase refers to the change in the current rotation frequency of the spool during casting being rising; constructing second braking force data for each fishing mode during the falling phase of casting, wherein the falling phase refers to the change in the current rotation frequency of the spool during casting being falling; Collect the current rotation frequency of the fishing reel's spool during casting in the current fishing mode; The current braking force corresponding to the current rotation frequency of the spool is calculated based on the braking force data corresponding to the current fishing mode.

2. The intelligent variable frequency electromagnetic braking method according to claim 1, characterized in that, The pre-built braking force data for different fishing modes also includes: Various fishing modes are defined based on one or more of the fishing scenario, bait type, and bait weight range. The different fishing modes include at least one of the following: high wind resistance mode, long casting mode, light bait mode, float mode, swaying casting mode, and general-purpose mode.

3. The intelligent variable frequency electromagnetic braking method according to claim 2, characterized in that, The construction of the first braking force data corresponding to the ascent phase during casting for each fishing mode includes: Construct multi-level gears and multi-level rotation frequency ranges for each fishing mode; The braking force is set for each gear level and each rotation frequency range in each fishing mode; wherein, under the same gear level, the larger the rotation frequency range level, the greater the braking force; under the same rotation frequency range level, the larger the gear level, the greater the braking force.

4. The intelligent variable frequency electromagnetic braking method according to claim 2, characterized in that, The construction of the second braking force data for each fishing mode during the descent phase of casting includes: Develop multi-level gears for each fishing mode; The maximum braking force, minimum braking force, and descent coefficient are set for each gear level, wherein the higher the gear level, the greater the corresponding minimum braking force and descent coefficient; The formula for calculating the current selectable braking force during the descent phase is: Current spool rotation frequency / Maximum rotation frequency * Current descent coefficient.

5. The intelligent variable frequency electromagnetic braking method according to claim 3, characterized in that, The calculation of the current braking force corresponding to the current rotation frequency of the spool based on the braking force data corresponding to the current fishing mode includes: Get the current fishing mode and current gear; The current rotation frequency of the spool during the rising phase of the casting process; Based on the current rotation frequency of the spool, the corresponding range of the current rotation frequency of the spool is matched with the corresponding first braking force data; The braking force is obtained based on the current rotation frequency range of the spool and the current gear, and is used as the current braking force.

6. The intelligent variable frequency electromagnetic braking method according to claim 4, characterized in that, The calculation of the current braking force corresponding to the current rotation frequency of the spool based on the braking force data corresponding to the current fishing mode includes: Get the current fishing mode and current gear; Collect the maximum rotation frequency during casting and the current rotation frequency of the spool during the descent phase; Calculate the ratio of the current rotation frequency of the spool to the maximum rotation frequency and use it as the current frequency ratio. Then, multiply the current frequency ratio by the corresponding descent coefficient and use it as the current selectable braking force. When the current braking force to be selected is greater than or equal to the corresponding maximum braking force, the maximum braking force is used as the current braking force; When the current braking force to be selected is less than or equal to the corresponding minimum braking force, the minimum braking force is used as the current braking force; When the current candidate braking force is less than the corresponding maximum braking force but greater than the corresponding minimum braking force, the current candidate braking force is used as the current braking force.

7. The intelligent variable frequency electromagnetic braking method according to claim 2, characterized in that, Also includes: Set the minimum braking activation frequency for each fishing mode during the ascent phase; When the current rotation frequency of the spool is less than the corresponding minimum braking start frequency, the current braking force corresponding to the current rotation frequency of the spool is set as the minimum initial braking force.

8. The intelligent variable frequency electromagnetic braking method according to claim 2, characterized in that, Also includes: When the current spool rotation frequency is less than the previous spool rotation frequency, it is determined that the rotation frequency has decreased once. When the number of consecutive decreases in rotation frequency reaches a preset number, it is determined that the current stage has changed from the rising stage to the falling stage.

9. The intelligent variable frequency electromagnetic braking method according to claim 1, characterized in that, Also includes: Collects the current line distance from the spool when casting in the current fishing mode; Calculate the ratio of the current line distance from the spool to the preset target distance and use it as the current distance ratio; The braking force is matched according to the current distance ratio, wherein the current distance ratio and the braking force are positively correlated.

10. An intelligent variable frequency electromagnetic braking system, characterized in that, include: The storage unit is used to pre-store braking force data under different fishing modes; specifically, it includes: constructing first braking force data corresponding to the rising phase of each fishing mode during casting, wherein the rising phase refers to the change in the current rotation frequency of the spool during casting being rising; and constructing second braking force data corresponding to the falling phase of each fishing mode during casting, wherein the falling phase refers to the change in the current rotation frequency of the spool during casting being falling. The data acquisition unit is used to acquire the current rotation frequency of the fishing reel spool during casting in the current fishing mode; The calculation unit is used to calculate the current braking force corresponding to the current rotation frequency of the spool based on the braking force data corresponding to the current fishing mode.

11. A fishing reel, characterized in that, Including the intelligent variable frequency electromagnetic braking system as described in claim 10 above.

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