Method for dynamically simulating fishing rod, and program

Abstract

The present invention provides a method and a program for using dynamic data of a specific fishing rod during actual use by a user to dynamically simulate other various fishing rods, and a computer-readable recording medium storing the program. A method for simulating a fishing rod according to one embodiment of the present invention comprises a step for measuring positions on the first fishing rod and the position of a sinker during use of the first fishing rod, a step for generating time series data of the positions on the first fishing rod and of the position of the sinker or the line angle of a fishing line, a step for calculating time series data of a load on the rod tip of the fishing rod caused by the sinker, of a load angle, and of the rod tip angle of the fishing rod, on the basis of the fishing rod flexural rigidities (EI) at the positions on the first fishing rod, and the time series data of the positions on the first fishing rod and of the position of the sinker or the line angle of the fishing line, and a step for calculating, on the basis of the fishing rod flexural rigidities (EI) at positions ranging from the rod tip to the rod butt of a second fishing rod, which differs from the first fishing rod, and the time series data of the load on the rod tip of the fishing rod caused by the sinker, of the load angle, and of the rod tip angle of the fishing rod, time series data of the positions on the second fishing rod and of the position of a sinker or the line angle of a fishing line.

Description

Method and Program for Performing Dynamic Simulation of Fishing Rods

[0001] This cross - reference application claims priority based on Japanese Patent Application No. 2025 - 002671 (filed on January 8, 2025), the content of which is incorporated herein by reference in its entirety. The present invention relates to a method for performing dynamic simulations of various fishing rods that mimics the actual use by the user of the fishing rod, and a program therefor.

[0002] Various characteristics are required for fishing rods. Among the characteristics emphasized during the design of fishing rods, there are objectively measurable objective characteristics, such as the bending rigidity and torsional rigidity of the rod body.

[0003] Although such objective characteristics of fishing rods are quantitative, they do not reflect the actual movement of the fishing rod, that is, they are not dynamic. In order to objectively understand the operation of the fishing rod, it is required to perform a dynamic display of the fishing rod. On the other hand, in order to perform dynamic displays of various fishing rods, it is necessary to measure and display the movement of each fishing rod after performing actual use of each fishing rod one by one, which has the problem of not being necessarily easy.

[0004] As a method for simulating a fishing rod, for example, Patent Document 1 discloses a fishing rod simulation system including a first information setting unit for setting fishing rod information related to a fishing rod, a second information setting unit for setting load information related to the load applied to the fishing rod, and a display control unit for three - dimensionally displaying the deformed state of the fishing rod on a display device based on the fishing rod information set by the first information setting unit and the load information set by the second information setting unit.

[0005] However, the method according to Patent Document 1 has the problem that it cannot perform dynamic simulation in the first place, and cannot perform dynamic simulations of various fishing rods that mimic the actual use by the user.

[0006] Japanese Unexamined Patent Application Publication No. 2024 - 011197

[0007] One of the objectives of the present invention is to provide a method for performing dynamic simulations of various other fishing rods using dynamic data from actual use by a user of a specific fishing rod, a program for the same, and a computer-readable recording medium on which the program is stored.

[0008] Other objects of the present invention will become apparent by referring to the entire specification.

[0009] A fishing rod simulation method according to one embodiment of the present invention is configured to include the following steps: measuring each position of the first fishing rod and the position of the weight or the angle of the fishing line when the first fishing rod is used; generating time-series data of each position of the first fishing rod and the position of the weight or the angle of the fishing line; calculating time-series data of the load on the tip of the fishing rod caused by the weight, the load angle, and the butt angle of the fishing rod based on the bending stiffness (EI) of the fishing rod at each position of the first fishing rod and the time-series data of each position of the first fishing rod and the position of the weight or the angle of the fishing line; and calculating time-series data of each position of the second fishing rod and the position of the weight or the angle of the fishing line based on the bending stiffness (EI) of the fishing rod at each position from the tip to the butt of the second fishing rod, which is different from the first fishing rod, and the load on the tip of the fishing rod caused by the weight, the load angle, and the butt angle of the fishing rod.

[0010] A fishing rod simulation method according to one embodiment of the present invention is configured to display the dynamic changes in the movement of the second fishing rod based on time-series data of the calculated positions of the second fishing rod and the position of the weight or the angle of the fishing line. Furthermore, a fishing rod simulation method according to one embodiment of the present invention is configured to display the dynamic changes in the movement of the second fishing rod based on time-series data of the calculated positions of the second fishing rod and the position of the weight or the angle of the fishing line, reflecting the change in the absolute position of the butt end of the second fishing rod.

[0011] A fishing rod simulation method according to one embodiment of the present invention is configured to calculate time-series data of the curvature of each position of the second fishing rod based on the time-series data of each position of the second fishing rod that has been calculated. Furthermore, a fishing rod simulation method according to one embodiment of the present invention displays at least one of the curvature of each position of the second fishing rod, the strain energy, and the user's support force, as described in claim 4.

[0012] A simulation method for a fishing rod according to one embodiment of the present invention is configured to calculate time-series data for each position of the second fishing rod such that each position within the holding range from the butt end to the tip end of the second fishing rod is arranged in a straight line.

[0013] A fishing rod simulation method according to one embodiment of the present invention is configured to calculate the bending stiffness (EI) of one or more fishing rods, which are different from the first fishing rod and the second fishing rod, at each position from the tip to the butt of the rod, and to calculate time-series data of each position of the one or more fishing rods, and the position of the weight or the angle of the fishing line, based on the bending stiffness (EI) of the fishing rods at each position from the tip to the butt of the one or more fishing rods, the load on the tip of the one or more fishing rods caused by the weight, the load angle, and the butt angle of the one or more fishing rods.

[0014] A program according to one embodiment of the present invention is a program that causes a computer to perform the following steps: measuring each position of the first fishing rod and the position of the weight or the angle of the fishing line when the first fishing rod is used, and generating time-series data of each position of the first fishing rod and the position of the weight or the angle of the fishing line; calculating time-series data of the load on the tip of the fishing rod caused by the weight, the load angle, and the butt angle of the fishing rod, based on the bending stiffness (EI) of the fishing rod at each position of the first fishing rod and the time-series data of each position of the first fishing rod and the position of the weight or the angle of the fishing line; and calculating time-series data of each position of the second fishing rod and the position of the weight or the angle of the fishing line, based on the bending stiffness (EI) of the fishing rod at each position of the first fishing rod and the time-series data of the load on the tip of the fishing rod caused by the weight, the load angle, and the butt angle of the fishing rod.

[0015] A computer-readable recording medium according to one embodiment of the present invention measures the position of each position of the first fishing rod and the position of the weight or the angle of the fishing line when the first fishing rod is used, and generates time-series data of each position of the first fishing rod and the position of the weight or the angle of the fishing line; and calculates the load on the tip of the fishing rod caused by the weight and the load based on the bending stiffness (EI) of the fishing rod at each position of the first fishing rod and the time-series data of each position of the first fishing rod and the position of the weight or the angle of the fishing line. This is a computer-readable recording medium that records a program for executing the following steps: calculating time-series data of the loading angle and the butt angle of the fishing rod; and calculating time-series data of each position of the second fishing rod, and the position of the weight or the angle of the fishing line, based on the bending stiffness (EI) of the fishing rod at each position from the tip to the butt of the second fishing rod, which is different from the first fishing rod, the load on the tip of the fishing rod caused by the weight, the loading angle, and the butt angle of the fishing rod.

[0016] A fishing rod simulation method according to one embodiment of the present invention is configured to calculate the bending stiffness (EI) of the first fishing rod at each position from the tip to the butt of the first fishing rod when the first fishing rod is used, and before generating time-series data of each position of the first fishing rod and the position of the weight or the angle of the fishing line, the method is configured to calculate the bending stiffness (EI) of the first fishing rod at each position from the tip to the butt of the first fishing rod. Furthermore, a fishing rod simulation method according to one embodiment of the present invention is configured to calculate the bending stiffness (EI) of the second fishing rod at each position from the tip to the butt of the second fishing rod, which is different from the first fishing rod, based on the bending stiffness (EI) of the second fishing rod at each position from the tip to the butt of the second fishing rod, which is different from the first fishing rod, the load on the tip of the fishing rod caused by the weight, the load angle, and time-series data of the butt angle of the fishing rod, before calculating time-series data of each position of the second fishing rod and the position of the weight or the angle of the fishing line.

[0017] A program for causing a computer to perform each of the above steps according to one embodiment of the present invention is configured to include, in each of the above steps, a step of measuring each position of the first fishing rod and the position of the weight or the angle of the fishing line when the first fishing rod is used, and before generating time-series data of each position of the first fishing rod and the position of the weight or the angle of the fishing line, the bending stiffness (EI) of the first fishing rod at each position from the tip to the butt of the first fishing rod. Furthermore, a program for causing a computer to perform each step according to one embodiment of the present invention is configured to include, in each of the above steps, a step of calculating the bending stiffness (EI) of the second fishing rod at each position from the tip to the butt of the second fishing rod, which is different from the first fishing rod, based on time-series data of the bending stiffness (EI) of the second fishing rod at each position from the tip to the butt of the second fishing rod, which is different from the first fishing rod, the load on the tip of the fishing rod caused by the weight, the load angle, and the butt angle of the fishing rod, before calculating time-series data of each position of the second fishing rod and the position of the weight or the angle of the fishing line.

[0018] A computer-readable recording medium storing a program for performing each step according to one embodiment of the present invention is configured to include in each of the above steps the step of measuring each position of the first fishing rod and the position of the weight or the angle of the fishing line when the first fishing rod is used, and calculating the bending stiffness (EI) of the first fishing rod at each position from the tip to the butt of the first fishing rod before generating time-series data of each position of the first fishing rod and the position of the weight or the angle of the fishing line. Furthermore, a computer-readable recording medium that records a program for performing each step according to one embodiment of the present invention is configured to include a step in each of the above steps of calculating the bending stiffness (EI) of the second fishing rod at each position from the tip to the butt of the second fishing rod, which is different from the first fishing rod, based on time-series data of the bending stiffness (EI) of the second fishing rod at each position from the tip to the butt of the second fishing rod, which is different from the first fishing rod, the load on the tip of the fishing rod caused by the weight, the load angle, and the butt angle of the fishing rod, before calculating time-series data of each position of the second fishing rod and the position of the weight or the angle of the fishing line.

[0019] Embodiments of the present invention make it possible to provide a method for performing dynamic simulations of various other fishing rods using dynamic data from actual use by a user of a specific fishing rod, a program for the same, and a computer-readable recording medium on which the program is stored.

[0020] This is an overall configuration diagram of a measurement system according to one embodiment of the present invention. This diagram illustrates a system 100 that performs dynamic simulations of various other fishing rods using dynamic data from actual use by a user of a specific fishing rod according to one embodiment of the present invention. This diagram illustrates the flow for performing dynamic simulations of various other fishing rods using dynamic data from actual use by a user of a specific fishing rod according to one embodiment of the present invention. This diagram illustrates the load, load angle, and butt angle of a specific fishing rod according to one embodiment of the present invention. This diagram illustrates an example of dynamically displaying the movement of another fishing rod (second fishing rod) (each position (shape) of the fishing rod and the position of the weight) according to one embodiment of the present invention. (a) A diagram illustrating an example of dynamically displaying the movement of another fishing rod (second fishing rod) (each position (shape) of the fishing rod and the position of the weight) as viewed from a first direction according to one embodiment of the present invention; (b) A diagram illustrating an example of dynamically displaying the movement of another fishing rod (second fishing rod) (each position (shape) of the fishing rod and the position of the weight) as viewed from a second direction according to one embodiment of the present invention; (c) A diagram illustrating an example of dynamically displaying the movement of another fishing rod (second fishing rod) (each position (shape) of the fishing rod and the position of the weight) as viewed from a third direction according to one embodiment of the present invention. A diagram illustrating an example of a measurement database and a design database stored in the memory unit in a fishing rod simulation method according to one embodiment of the present invention.

[0021] Various embodiments of the present invention will be described below with reference to the drawings as appropriate. Note that common components in each drawing are denoted by the same reference numerals. It should be noted that, for the sake of clarity, the drawings are not necessarily drawn to an exact scale.

[0022] Figure 1 is a schematic diagram illustrating the overall configuration of a measurement system 1 for performing dynamic simulations of various other fishing rods using dynamic data from actual use by a user of a specific fishing rod of the present invention. As shown in Figure 1, the measurement system 1 consists of a fishing rod 10 with predetermined markings 8 at various positions on the rod, a weight 20 attached to one end of the fishing rod 10, and a camera 30 that captures the markings 8. When an operator holds the fishing rod 10 and performs a fishing motion, the camera 30 captures the markings 8, thereby measuring changes in the entire rod and at each position of the markings. The measurement system 1 may also be configured to connect to an information processing device (not shown). Furthermore, the measurement system 1 may be configured to include a holding device for holding the fishing rod 10. In addition, the measurement system 1 may be configured in combination with other different devices besides the fishing rod 10, weight 20, and camera 30.

[0023] In this way, the illustrated measurement system 1 detects the coordinates of each position of the fishing rod 10, the position of the weight, or the angle of the fishing line when a load is applied to the fishing rod while it is stationary. The information processing device 40, which will be described later, then calculates the bending stiffness (EI) of the fishing rod at each position. As will be described in detail later, based on this information, the system ultimately calculates time-series data of each position of another fishing rod 10, as well as the position of the weight or the angle of the fishing line. Details will be explained below.

[0024] Referring to Figure 2, a system 100 that performs dynamic simulations of various other fishing rods using dynamic data from actual use by a user of a specific fishing rod according to one embodiment of the present invention will be described. Figure 2 is a block diagram showing the overall configuration of the system 100 for performing dynamic simulations of various other fishing rods using dynamic data from actual use by a user of a specific fishing rod according to one embodiment of the present invention. As shown in the figure, the system 100 for performing dynamic simulations of a fishing rod according to one embodiment of the present invention is configured to include the measurement system 1 described above and an information processing device 40 connected to the measurement system 1. The information processing device 40 is configured to include a communication unit 41 for sending and receiving measurement data with the measurement system 1, a control unit (calculation unit) 42 for calculating fishing rod characteristics such as bending stiffness (EI) and curvature, which will be described later, a storage unit 43 for storing the measurement data and fishing rod characteristics, and a display unit 44 for displaying the measurement data and fishing rod characteristics. Here, the measurement data is data indicating the coordinates of each position of the fishing rod 10 and the coordinates of the position of the weight 20. Furthermore, the information processing device 40 may be a computer, smartphone, wearable device, game player, or cloud system, but is not limited to these. The communication unit 41 receives measurement data transmitted from the measurement system 1, and the control unit (arithmetic unit 42) stores the measurement data received by the communication unit 41 in the storage unit 43. Alternatively, for example, a processor such as a CPU and MPU functions as the control unit 42 by executing a program stored in the storage unit 43 that performs the processing described later. Alternatively, for example, a storage device such as a memory and a hard disk functions as the storage unit 43.

[0025] Next, referring to Figure 3, a method for performing dynamic simulations of various other fishing rods using dynamic data from actual use by a user of a specific fishing rod according to one embodiment of the present invention will be described. As shown in the figure, in the method for performing dynamic simulations of a fishing rod according to one embodiment of the present invention, first, the method for calculating the bending stiffness (EI) based on the coordinates of each position of the fishing rod 10 by the control unit (calculation unit) 42 of the information processing device 40 described above will be described. Specifically, first, a number of conditions (for example, five different conditions) are set to define the load acting on the fishing rod (tip) and the holding angle for holding the fishing rod, and the static load under each condition is measured (step A1). For example, we can consider the following conditions: Condition 1 is when the holding angle is 0 degrees and the load is 0 kg (to obtain the distance between markers); Condition 2 is when the holding angle is 60-70 degrees and the load is small (a condition where the tip of the fishing rod bends); Condition 3 is when the holding angle is 50 degrees and the load is greater than in Condition 2 (a condition where the fishing rod bends between the tip and the middle); Condition 4 is when the holding angle is 40-50 degrees and the load is greater than in Condition 3 (a condition where the fishing rod bends between the butt and the middle); and Condition 5 is when the holding angle is 30-40 degrees and the load is the greatest (a condition where the fishing rod bends at the butt).

[0026] Next, the measurement data obtained in the above steps is edited (Step A2). More specifically, if necessary, the measurement data is spliced ​​together, missing data is corrected, the measurement data is swapped and corrected, and the order of each position on the fishing rod is changed. Next, the load curve is checked (Step A3). Here, the load curve refers to the state in which the fishing rod is bent when a load is applied to it (bent state). After that, the coordinate data of each position on the fishing rod 10 is output (Step A4). Next, the distance between markers is obtained from condition 1 above, and the curvature (radius of curvature) of each position is calculated from conditions 2 to 5 above (Step A5). Next, using the following formula (1), the bending stiffness (EI) based on the coordinates of each position on the fishing rod 10 is calculated based on the curvature (radius of curvature) of each position and the bending moment (load × distance) calculated from the load (Step A6). The calculated bending stiffness (EI) data may be stored in the storage unit 43 described above. 1 / R = M / EI Equation (1) Here, 1 / R represents the curvature, M represents the bending moment, and EI represents the bending stiffness (E is Young's modulus, I is the second moment of area).

[0027] Next, when a user uses a specific fishing rod (the first fishing rod), the positions of the fishing rod (the first fishing rod), the position of the sinker, or the angle of the fishing line are measured (captured), and time-series data for each of these positions is generated (Step A7). Then, based on the time-series data of each of the positions of the fishing rod (the first fishing rod), the position of the sinker, or the angle of the fishing line, time-series data of the curvature of each of these positions is calculated (Step A8). Subsequently, based on the time-series data of each of the positions of the fishing rod (the first fishing rod), the position of the sinker, or the angle of the fishing line, the time-series data of the curvature, and the bending stiffness of each position, time-series data for the load generated at the tip of the fishing rod (the first fishing rod) by the sinker, the angle of the load generated at the tip of the fishing rod (the first fishing rod) by the sinker, and the angle of the butt of the fishing rod (the first fishing rod) are calculated (Step A9). More specifically, as shown in Figure 4, based on time-series data of each position of the fishing rod (first fishing rod) and the position of the weight or the angle of the fishing line, time-series data of the angle of the load generated at the tip of the fishing rod (first fishing rod) by the weight and the angle of the butt of the fishing rod (first fishing rod) are calculated. Based on the time-series data of each position of the fishing rod (first fishing rod) and the position of the weight or the angle of the fishing line, time-series data of the curvature of each position, and the bending stiffness (EI) of each position, the time-series data of the load generated at the tip of the fishing rod (first fishing rod) by the weight is calculated using the above formula (1). Here, the calculated time-series data of the load angle, the angle of the butt, and the load generated at the tip may be stored in the storage unit 43. Note that the angle of the load generated by the weight may be calculated by measuring (capturing) the fishing line (state) and using that angle. Furthermore, in a method for performing dynamic simulations of a fishing rod according to one embodiment of the present invention, the storage unit 43 may be configured to store a measurement database and a design database, as shown as an example in Figure 7.As shown in the diagram, the measurement database includes information on the fishing rod used, the tester (user), information obtained and calculated through measurement (time, rod butt position coordinates, rod butt angle, load, load angle, holding length, fishing line length, etc.), and measured fishing rod information (fishing rod position, bending stiffness (EI), etc.). The design database includes fishing rod information (fishing rod position, bending stiffness (EI), etc.), but is not limited to these, and various databases can be created and stored in each database. In this way, for example, if the fishing line length can be obtained, the position of the sinker can be calculated from the fishing line length and load angle. The fishing line length may also be calculated from the position of the tip of the fishing rod and the position of the sinker, or a fixed value may be used. In addition, the bending stiffness (EI) of another fishing rod (second fishing rod) can be stored as data measured under static load (measured fishing rod information), or it may be stored as a design value (design database) instead.

[0028] Here, we will explain the method by which the control unit (calculation unit) 42 of the information processing device 40 described above calculates the curvature based on the coordinates of each position of the fishing rod 10. First, the temporal changes in the coordinates of each position due to the movement of the fishing rod are measured. Next, the measured data is edited. More specifically, if necessary, the measurement data is spliced ​​together, missing data is corrected, data is swapped and corrected, and the order of each position of the fishing rod is changed. Next, the edited measurement data is checked. Checking the edited measurement data means checking for noise and checking whether it shows the expected curve. After that, time-series data of the coordinates of each position of the fishing rod 10 and the position of the sinker or the angle of the fishing line are output. The reason why the coordinates of the sinker are necessary is to calculate the line of action of the force acting on the fishing rod and to calculate the distance from each marker (each position) to the line of action. Next, based on the time-series data of the coordinates of each position of the fishing rod 10 and the coordinates of the sinker that have been output, time-series data of the curvature at each position of the fishing rod 10 is calculated.

[0029] Next, time-series data of the load generated at the tip of the fishing rod (first fishing rod) by the weight, the angle of the load generated at the tip of the fishing rod (first fishing rod) by the weight, and the angle of the butt of the fishing rod (first fishing rod) when the user uses a specific fishing rod (first fishing rod), along with bending stiffness data of a different fishing rod (second fishing rod) different from the specific fishing rod (first fishing rod) to be simulated, are used to calculate time-series data of each position of the other fishing rod (second fishing rod), and the position of the weight or the angle of the fishing line (step A10). The calculated time-series data of each position of the other fishing rod (second fishing rod), and the position of the weight or the angle of the fishing line may be stored in the storage unit 43. Then, based on the time-series data of each position of the other fishing rod (second fishing rod) calculated in this way, the movement of the other fishing rod (second fishing rod) (each position (shape) of the fishing rod, the position of the sinker, or the angle of the fishing line) is dynamically displayed in two or three dimensions, as shown as an example in Figure 5 (three-dimensional display viewed from one angle) and Figure 6 (three-dimensional display viewed from multiple angles) (Step A11). The display unit 44 may also display the movement of the other fishing rod (second fishing rod) based on the time-series data of each position of the other fishing rod (second fishing rod) and the position of the sinker stored in the storage unit 43. Figure 5 shows an example of the movement of the other fishing rod (second fishing rod) (each position (shape) of the fishing rod, the position of the weight, or the angle of the fishing line) displayed three-dimensionally and dynamically (over time) as viewed from the side of the other fishing rod (second fishing rod), Figure 6(a) shows an example of the movement of the other fishing rod (second fishing rod) (each position (shape) of the fishing rod, the position of the weight, or the angle of the fishing line) displayed three-dimensionally and dynamically (over time) as viewed from the side (lateral) direction of the other fishing rod (second fishing rod), and Figure 6(b) is Figure 6(c) shows an example of displaying the movement of the other fishing rod (second fishing rod) (each position (shape) of the fishing rod, the position of the weight, or the angle of the fishing line) in three dimensions and dynamically (over time) as viewed from the left rear (left diagonal rear) direction of the other fishing rod (second fishing rod).In this way, dynamic simulations can be performed on various other fishing rods (second fishing rod, third fishing rod, fourth and subsequent fishing rods, i.e., multiple fishing rods) using dynamic data from actual use by a user of a specific fishing rod (first fishing rod). Here, the system may be configured to display at least one of the curvature of each position of the various other fishing rods (second fishing rod, third fishing rod, fourth and subsequent fishing rods, i.e., multiple fishing rods), the strain energy, and the user's bearing force. It may also be configured to display the load generated at the tip of the various other fishing rods.

[0030] A fishing rod simulation method according to one embodiment of the present invention is configured to include the following steps: measuring each position of the first fishing rod and the position of the weight or the angle of the fishing line when the first fishing rod is used; generating time-series data of each position of the first fishing rod and the position of the weight or the angle of the fishing line; calculating time-series data of the load on the tip of the fishing rod caused by the weight, the load angle, and the butt angle of the fishing rod based on the bending stiffness (EI) of the fishing rod at each position of the first fishing rod and the time-series data of each position of the first fishing rod and the position of the weight or the angle of the fishing line; and calculating time-series data of each position of the second fishing rod and the position of the weight or the angle of the fishing line based on the bending stiffness (EI) of the fishing rod at each position from the tip to the butt of the second fishing rod, which is different from the first fishing rod, and the load on the tip of the fishing rod caused by the weight, the load angle, and the butt angle of the fishing rod. Furthermore, in a fishing rod simulation method according to one embodiment of the present invention, the dynamic changes in the movement of the second fishing rod are displayed based on the time-series data of the calculated positions of the second fishing rod and the position of the weight or the angle of the fishing line. Hereinafter, in a fishing rod simulation method according to one embodiment of the present invention, the bending stiffness (EI) of the first fishing rod at each position from the tip to the butt of the first fishing rod may be calculated before measuring the positions of the first fishing rod and the position of the weight or the angle of the fishing line when the first fishing rod is used and generating time-series data of the positions of the first fishing rod and the position of the weight or the angle of the fishing line. However, the step (process) of calculating the bending stiffness (EI) of the first fishing rod at each position from the tip to the butt of the first fishing rod shall be performed as a step (process) that is continuous or discontinuous with respect to the subsequent steps (processes) (the same applies throughout this specification).Furthermore, in a fishing rod simulation method according to one embodiment of the present invention, the method may be configured to calculate the bending stiffness (EI) of the second fishing rod at each position from the tip to the butt of the second fishing rod, which is different from the first fishing rod, based on time-series data of the load on the tip of the fishing rod caused by the weight, the load angle, and the butt angle of the fishing rod, before calculating time-series data of each position of the second fishing rod and the position of the weight or the angle of the fishing line. However, the step (process) of calculating the bending stiffness (EI) of the second fishing rod at each position from the tip to the butt of the second fishing rod is to be performed as a step (process) that is continuous or discontinuous with respect to each subsequent step (process) (the same applies throughout this specification).

[0031] According to one embodiment of the present invention, a fishing rod simulation method makes it possible to perform dynamic simulations of various other fishing rods using dynamic data from actual use by a specific fishing rod user. More specifically, since the positions of the fishing rod and sinker can be displayed based on the calculated time-series data for various different fishing rods, it becomes possible to easily realize simulations of use by a specific user (such as a professional angler) for various different fishing rods. This makes it easier for fishing rod designers to visualize the usage conditions of the fishing rod when designing, improving the design accuracy of the fishing rod and shortening the design man-hours. In other words, since the fishing rod can be virtually replaced and the visually dynamic hook curve can be easily confirmed, designers can easily design fishing rods that match their desired image. It can also be used as a reference when users purchase products.

[0032] A fishing rod simulation method according to one embodiment of the present invention is configured to display the dynamic changes in the movement of the second fishing rod, reflecting the change in the absolute position of the butt end of the second fishing rod, based on the time-series data of the calculated positions of the second fishing rod and the position of the sinker or the angle of the fishing line. In this way, as shown in Figure 5 or Figure 6, it becomes possible to display the dynamic (time-series) movement of the fishing rod, including the movement of the entire fishing rod, in a manner that is closer to actual use. Alternatively, the change in the absolute position of the butt end of the second fishing rod may not be reflected, and it may be displayed fixed at one location (one position).

[0033] A fishing rod simulation method according to one embodiment of the present invention is configured to calculate time-series data of the curvature of each position of the second fishing rod based on the time-series data of each position of the second fishing rod that has been calculated. Furthermore, the fishing rod simulation method according to one embodiment of the present invention is configured to display at least one of the curvature of each position of the second fishing rod, the strain energy, and the user's support force. In this way, it becomes possible to understand the state of the fishing rod in more detail.

[0034] A simulation method for a fishing rod according to one embodiment of the present invention is configured to calculate time-series data for each position of the second fishing rod in a holding range (holding length) from the butt end (butt coordinate) to the tip end (support coordinate) of the holding part of the second fishing rod, as shown in Figure 4, such that each position within the holding range (holding length) is arranged in a straight line.

[0035] A fishing rod simulation method according to one embodiment of the present invention is configured to calculate the bending stiffness (EI) of one or more fishing rods, which are different from the first fishing rod and the second fishing rod, at each position from the tip to the butt of the rod, and to calculate time-series data of each position of the one or more fishing rods, and the position of the weight or the angle of the fishing line, based on the bending stiffness (EI) of the fishing rods at each position from the tip to the butt of the one or more fishing rods, the load on the tip of the one or more fishing rods caused by the weight, the load angle, and the butt angle of the one or more fishing rods.

[0036] According to one embodiment of the present invention, a fishing rod simulation method makes it possible to perform dynamic simulations of various other fishing rods using dynamic data from actual use by a specific fishing rod user. More specifically, since the positions of the fishing rod and sinker can be displayed based on the calculated time-series data for one or more different fishing rods, it becomes possible to easily realize simulations by a specific user (such as a professional angler) for one or more different fishing rods. This makes it easier for fishing rod designers to visualize the usage conditions of the fishing rod when designing, improving the design accuracy of the fishing rod and shortening the design man-hours. In other words, since the fishing rod can be virtually replaced and the visually dynamic hook curve can be easily confirmed, designers can easily design fishing rods that match their desired image. It can also be used as a reference when users purchase products.

[0037] A program according to one embodiment of the present invention is a program that causes a computer to perform the following steps: measuring each position of the first fishing rod and the position of the weight or the angle of the fishing line when the first fishing rod is used, and generating time-series data of each position of the first fishing rod and the position of the weight or the angle of the fishing line; calculating time-series data of the load on the tip of the fishing rod caused by the weight, the load angle, and the butt angle of the fishing rod based on the bending stiffness (EI) of the fishing rod at each position of the first fishing rod and the time-series data of each position of the first fishing rod and the position of the weight or the angle of the fishing line; and calculating time-series data of each position of the second fishing rod and the position of the weight or the butt angle of the fishing rod based on the bending stiffness (EI) of the fishing rod at each position of the second fishing rod, which is different from the first fishing rod, and the time-series data of the load on the tip of the fishing rod caused by the weight, the load angle, and the butt angle of the fishing rod.

[0038] According to a program based on one embodiment of the present invention, it is possible to provide a method for performing dynamic simulations of various other fishing rods using dynamic data from actual use by a user of a specific fishing rod. More specifically, since the positions of the fishing rod and sinker can be displayed based on the calculated time-series data for various different fishing rods, it becomes possible to easily realize simulations of use by a specific user (such as a professional angler) for various different fishing rods. This makes it easier for fishing rod designers to visualize the usage conditions of fishing rods when designing them, improving the accuracy of fishing rod designs and reducing design man-hours. In other words, by virtually replacing the fishing rod and easily checking the visually dynamic hook curve, designers can easily design fishing rods that match their desired image. It can also be used by users as a reference when purchasing products.

[0039] A computer-readable recording medium according to one embodiment of the present invention measures the position of each position of the first fishing rod and the position of the weight or the angle of the fishing line when the first fishing rod is used, and generates time-series data of each position of the first fishing rod and the position of the weight or the angle of the fishing line; and calculates the load on the tip of the fishing rod caused by the weight and the load based on the bending stiffness (EI) of the fishing rod at each position of the first fishing rod and the time-series data of each position of the first fishing rod and the position of the weight or the angle of the fishing line. This is a computer-readable recording medium that records a program for executing the following steps: calculating time-series data of the loading angle and the butt angle of the fishing rod; and calculating time-series data of each position of the second fishing rod, and the position of the weight or the angle of the fishing line, based on the bending stiffness (EI) of the fishing rod at each position from the tip to the butt of the second fishing rod, which is different from the first fishing rod, the load on the tip of the fishing rod caused by the weight, the loading angle, and the butt angle of the fishing rod.

[0040] According to one embodiment of the present invention, a computer-readable recording medium makes it possible to provide a method for performing dynamic simulations of various other fishing rods using dynamic data from actual use by a specific fishing rod user. More specifically, since the positions of the fishing rod and sinker can be displayed based on the calculated time-series data for various different fishing rods, it becomes possible to easily realize simulations of specific users (such as professional anglers) for various fishing rods. This makes it easier for fishing rod designers to visualize the usage conditions of fishing rods when designing them, improving the accuracy of fishing rod designs and reducing design man-hours. In other words, by virtually replacing the fishing rod and easily confirming the visually dynamic hook curve, designers can easily design fishing rods that match their desired image. It can also be used by users as a reference when purchasing products.

[0041] The dimensions, materials, and arrangements of each component described herein are not limited to those explicitly described in the embodiments, and each component can be modified to have any dimensions, materials, and arrangements that fall within the scope of the present invention. Furthermore, components not explicitly described herein can be added to the described embodiments, and some of the components described in each embodiment can be omitted. In this specification, the operation of the fishing rod is not limited to the operation during casting, but may also be applied to, for example, the operation of catching a fish. In this case, since the weight is below the water surface, when measuring with the first fishing rod (step A7), the fishing line can be measured (captured) and its angle can be calculated as the load angle. In this case, the fishing line length may be a fixed value.

[0042] 1 Measurement system 8 Marking 10 Fishing rod 20 Weight 30 Measurement camera 40 Information processing unit 41 Communication unit 42 Control unit (calculation unit) 43 Storage unit 44 Display unit 100 System for dynamic simulation of a fishing rod

Claims

1. A fishing rod simulation method characterized by measuring each position of the first fishing rod, the position of the weight, or the angle of the fishing line when the first fishing rod is used, generating time-series data of each position of the first fishing rod, the position of the weight, or the angle of the fishing line, calculating time-series data of the load on the tip of the fishing rod caused by the weight, the load angle, and the butt angle of the fishing rod based on the bending stiffness (EI) of the fishing rod at each position of the first fishing rod and the time-series data of each position of the first fishing rod, the position of the weight, or the angle of the fishing line, and calculating time-series data of each position of the second fishing rod, the position of the weight, or the angle of the fishing line based on the bending stiffness (EI) of the fishing rod at each position from the tip to the butt of the second fishing rod, which is different from the first fishing rod, and the time-series data of the load on the tip of the fishing rod caused by the weight, the load angle, and the butt angle of the fishing rod.

2. A fishing rod simulation method according to claim 1, which displays the dynamic changes in the movement of the second fishing rod based on time-series data of the calculated positions of the second fishing rod and the position of the sinker or the angle of the fishing line.

3. A fishing rod simulation method according to claim 1, wherein the dynamic changes in the movement of the second fishing rod are displayed based on the time-series data of the calculated positions of the second fishing rod and the position of the weight or the angle of the fishing line, reflecting the change in the absolute position of the butt of the second fishing rod.

4. A fishing rod simulation method according to claim 1, comprising calculating time-series data of at least one of the curvature, strain energy, and user's support force at each position of the second fishing rod based on the time-series data of each position of the second fishing rod calculated.

5. A fishing rod simulation method according to claim 4, which displays at least one of the curvature of each position of the second fishing rod, the strain energy, and the user's support force.

6. The fishing rod simulation method according to claim 1, wherein time-series data of each position of the second fishing rod is calculated such that each position within the holding range from the butt end to the tip end of the second fishing rod is arranged in a straight line.

7. A fishing rod simulation method according to claim 1, comprising: calculating the bending stiffness (EI) of one or more fishing rods different from the first fishing rod and the second fishing rod at each position from the tip to the butt of the one or more fishing rods; and calculating time-series data of each position of the one or more fishing rods and the position of the weight or the angle of the fishing line based on the bending stiffness (EI) of the fishing rods at each position from the tip to the butt of the one or more fishing rods, the load on the tip of the one or more fishing rods caused by the weight, the load angle, and the butt angle of the one or more fishing rods.

8. A program for causing a computer to perform the following steps: measuring each position of the first fishing rod and the position of the weight or the angle of the fishing line when the first fishing rod is used, and generating time-series data of each position of the first fishing rod and the position of the weight or the angle of the fishing line; calculating time-series data of the load on the tip of the fishing rod caused by the weight, the load angle, and the butt angle of the fishing rod, based on the bending stiffness (EI) of the fishing rod at each position of the first fishing rod and the time-series data of each position of the first fishing rod and the position of the weight or the angle of the fishing line; and calculating time-series data of each position of the second fishing rod and the position of the weight or the angle of the fishing line, based on the bending stiffness (EI) of the fishing rod at each position from the tip to the butt of the second fishing rod, which is different from the first fishing rod, and the time-series data of the load on the tip of the fishing rod caused by the weight, the load angle, and the butt angle of the fishing rod.

9. A computer-readable recording medium recording a program for causing a computer to perform the following steps: measuring each position of the first fishing rod and the position of the weight or the angle of the fishing line when the first fishing rod is used, and generating time-series data of each position of the first fishing rod and the position of the weight or the angle of the fishing line; calculating time-series data of the load on the tip of the fishing rod caused by the weight, the load angle, and the butt angle of the fishing rod, based on the bending stiffness (EI) of the fishing rod at each position of the first fishing rod and the time-series data of each position of the first fishing rod and the position of the weight or the angle of the fishing line; and calculating time-series data of each position of the second fishing rod and the position of the weight or the angle of the fishing line, based on the bending stiffness (EI) of the fishing rod at each position of the first fishing rod and the time-series data of the load on the tip of the fishing rod caused by the weight, the load angle, and the butt angle of the fishing rod.

10. A fishing rod simulation method according to claim 1, comprising measuring each position of the first fishing rod, the position of the weight, or the angle of the fishing line when the first fishing rod is used, and calculating the bending stiffness (EI) of the first fishing rod at each position from the tip to the butt of the first fishing rod before generating time-series data of each position of the first fishing rod, the position of the weight, or the angle of the fishing line.

11. A fishing rod simulation method according to claim 1, wherein the bending stiffness (EI) of the second fishing rod, which is different from the first fishing rod, at each position from the tip to the butt of the second fishing rod, which is different from the first fishing rod, is calculated at each position from the tip to the butt of the second fishing rod, which is different from the first fishing rod, based on time-series data of the load on the tip of the fishing rod caused by the weight, the load angle, and the butt angle of the fishing rod, before calculating time-series data of each position of the second fishing rod and the position of the weight or the angle of the fishing line.

12. A program for causing a computer according to claim 8 to perform each of the steps, including measuring each position of the first fishing rod and the position of the sinker or the angle of the fishing line when the first fishing rod is used, and calculating the bending stiffness (EI) of the first fishing rod at each position from the tip to the butt of the first fishing rod before generating time-series data of each position of the first fishing rod and the position of the sinker or the angle of the fishing line.

13. A program for causing a computer to perform each step of claim 8, which includes the step of calculating the bending stiffness (EI) of a second fishing rod at each position from the tip to the butt of a second fishing rod, which is different from the first fishing rod, based on time-series data of the bending stiffness (EI) of the second fishing rod at each position from the tip to the butt of the second fishing rod, the load on the tip of the fishing rod caused by the weight, the load angle, and the butt angle of the fishing rod, before calculating time-series data of each position of the second fishing rod and the position of the weight or the angle of the fishing line.

14. A computer-readable recording medium recording a program for performing each of the steps of claim 9, the step of measuring each position of the first fishing rod, and the position of the sinker or the angle of the fishing line when the first fishing rod is used, and calculating the bending stiffness (EI) of the first fishing rod at each position from the tip to the butt of the first fishing rod before generating time-series data of each position of the first fishing rod, and the position of the sinker or the angle of the fishing line.

15. A computer-readable recording medium recording a program for performing each step of claim 9, comprising the step of calculating the bending stiffness (EI) of a second fishing rod at each position from the tip to the butt of a second fishing rod, which is different from the first fishing rod, based on time-series data of the bending stiffness (EI) of the second fishing rod at each position from the tip to the butt of the second fishing rod, which is different from the first fishing rod, the load on the tip of the fishing rod caused by the weight, the load angle, and the butt angle of the fishing rod, before calculating time-series data of each position of the second fishing rod and the position of the weight or the angle of the fishing line.

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