TW201819002A - Sensor-equipped ball core body - Google Patents

Abstract

To provide a sensor-equipped ball core body, from which accurate measuring results can be obtained. Provided is a sensor-equipped ball core body 100 that is to be built into a ball for a ball game. The sensor-equipped ball core body is provided with a spherically-shaped case 60, a first functional component 11, a second functional component 32, a circuit board 40, and a button battery 45, wherein the first functional component 11, the second functional component 32, and the circuit board 40 are connected integrally via a flexible wiring board 50, and the wiring board 50 is bent and disposed in the case 60. Accordingly, the components can be readily disposed at the respective appropriate positions in the spherically-shaped case 60, and accurate measuring results can be obtained.

Description

Core body for ball with sensor

[0001] The present invention relates to a core body for a ball to which a sensor is added, and more particularly to a core body for a ball to which a sensor is added, which is built into a ball for a ball game such as a field ball.

[0002] Conventionally, for the purpose of training players in ball games, a sensor-added ball with a built-in sensor and a training system using the same are developed and put into practical use. [0003] Such a sensor-attached ball and a training system using the same are disclosed in Patent Document 1. The basketball 900 and the basketball sensing system disclosed in Patent Document 1 will be described below using FIG. 7. FIG. 7 is a sectional view showing the structure of a basketball 900. FIG. [0004] As shown in FIG. 7, an electronic circuit 1318 is arranged in the center of the basketball 900. The electronic circuit 1318 is configured to transmit one or a plurality of signals indicating a place, an action, a speed, an acceleration, a rotation, and a temperature of the basketball 900 itself. That is, a circuit board is mounted in the electronic circuit 1318, and a pressure sensor, a light sensor, a magnetometer as a geomagnetic sensor, and an accelerometer as an acceleration sensor are mounted on the circuit substrate. Devices, signal transmitters or their circuit components. [0005] Moreover, the basketball sensing system determines whether a shot score of the basketball 900 is scored based on a signal received by at least one sensor located in the basketball 900. The basketball sensing system tracks the performance of players, can distinguish between the characteristics of successful pitching and failed pitching, and can compare its performance with the personal goals or performance of other players according to the implementation style. According to this basketball and training system, players can improve their shooting skills. [Prior Art Document] [Patent Document] [0006] [Patent Document 1] Japanese Patent Application Laid-Open No. 2014-193346

[Problems to be Solved by the Invention] [0007] However, when the basketball 900 is applied to a system as small as a baseball ball, all sensors and circuit elements including a geomagnetic sensor are collectively arranged on the ball. In the center, there is a problem that the geomagnetic sensor is easily affected by other components or metal bodies such as batteries. Therefore, the measurement result measured by the geomagnetic sensor becomes a result in which accuracy is affected. In order to obtain accurate measurement results, it is necessary to arrange each element at an appropriate position. [0008] The present invention has been made in view of the facts of such a conventional technology, and an object thereof is to provide a core body for a ball with a sensor, which can obtain accurate measurement results. [Means to Solve the Problem] [0009] In order to solve the above-mentioned problem, the sensor-added ball core body of the present invention is a ball-shaped core body with a sensor built in a ball for a game, It is characterized by having: a shell formed into a sphere shape; a first functional element; a second functional element; a circuit substrate; and a coin cell; the first functional element and the second functional element and the circuit substrate have flexibility The wiring board is connected and integrated, and the wiring board is bent and arranged in the casing. [0010] In the core body for a ball with a sensor configured as described above, the first functional element, the second functional element, and the circuit substrate are connected to each other by a flexible wiring substrate, and are disposed by being bent. The components can be easily arranged at appropriate positions in a sphere-shaped housing. Therefore, accurate measurement results can be obtained. [0011] In the above configuration, the button battery is disposed at the center of the case, a plurality of electronic components are mounted on one side of the circuit substrate, and the button battery is mounted on another of the circuit substrate. On one side, the first functional element is disposed on an inner wall of the case facing the surface of the circuit board, and the second functional element is disposed on an inner wall of the case on the side opposite to the first functional element. [0012] In the core body for a ball with a sensor configured as described above, the first functional element and the second functional element are arranged on the inner wall of the casing facing each other, and the button cell with the highest quality is arranged on the casing. The center allows for a balanced component arrangement. [0013] In the above configuration, the first wireless communication unit is provided, the first functional element is a first antenna in the first wireless communication unit, and the first antenna is connected to the electronic component and the electronic component. The elements are arranged separately, and the second functional element is a geomagnetic sensor that measures a change in the rotation axis of the ball and the number of rotations, and the geomagnetic sensor is disposed separately from the button battery. [0014] In the core body for a ball with a sensor configured as described above, the second functional element, that is, the geomagnetic sensor, is separated from the larger metal body, that is, the button battery, and is therefore difficult to be affected by the metal body. influences. Therefore, accurate measurement results by the geomagnetic sensor can be obtained. [0015] The above-mentioned configuration has a feature that an acceleration sensor and an angular velocity sensor are arranged in the center of the one surface of the circuit board. [0016] The angular core sensor and the acceleration sensor are arranged in the center of the circuit substrate in the core body for a ball with a sensor configured as described above, so that the centrifugal force can be reduced. The angular velocity sensor and the acceleration sensor can be reduced. influences. Therefore, it is possible to obtain accurate measurement results based on the acceleration sensor and the angular velocity sensor. [0017] The configuration has the following features: a second wireless communication unit; and a second antenna in the second wireless communication unit; the second antenna is integrally connected to the circuit substrate via the wiring substrate. In addition, the circuit board and the second antenna are arranged so as to support the button battery. [0018] The sensor-added ball core is configured in such a manner that the circuit substrate, the second antenna, and the button battery are held. Therefore, the second antenna and the first antenna on the circuit substrate side are button batteries. There will be no mutual problems. [0019] In the above configuration, the second wireless communication unit has a short-range wireless communication function, and the first wireless communication unit has a wireless communication function with a communication distance longer than that of the second wireless communication director. [0020] The sensor-added ball core body configured as described above has a first wireless communication unit and a second wireless communication unit. Therefore, the first wireless communication unit can transmit internal data to the outside, and can also The second wireless communication unit restarts the system. [Effects of the Invention] [0021] In the core body for a ball with a sensor of the present invention, the first functional element, the second functional element, and the circuit board are connected together by a flexible wiring substrate, and are integrated by Since it is arranged in a curved shape, each element is easily arranged in an appropriate position in a sphere-shaped housing. Therefore, accurate measurement results can be obtained.

[Embodiment] (1) The present invention will be described below with reference to the drawings. The sensor-added ball core 100 according to the embodiment of the present invention is a ball built into a ball game and is used for training of players who play the ball game. In particular, the developer has developed a program to learn how a ball thrown by a pitcher of a baseball rotates and how the rotation changes the orbit of the ball. The application of the sensor-added ball core according to the present invention is not limited to the embodiments described below, and can be appropriately modified. In addition, in the description of the drawings, the right side, left side, rear side, front side, upper side, and lower side may be described for the sake of convenience. They are shown in each drawing as + X side and -X. For the side, + Y side, -Y side, + Z side, and -Z side, the installation direction of the product or the direction in use is not limited to them. [0024] First, with reference to FIG. 1 to FIG. 3, the structure and structure of the ball core body 100 to which a sensor is added will be described. FIG. 1 is a perspective view showing a core body 100 for a ball to which a sensor is added according to an embodiment of the present invention, and FIG. 2 is a plan view showing a core body 100 for a ball to which a sensor is added. FIG. 3 is a schematic diagram showing a configuration on the wiring substrate 50. In addition, in FIG. 1 and FIG. 2, the case 60 is shown as transparent. [0025] As shown in FIGS. 1 and 2, a core body 100 for a ball to which a sensor is added is composed of a core body 90 and a case 60, and the core body 90 for a ball is composed of a button battery 45 and a flexible wiring substrate. 50 poses. [0026] The case 60 is formed of a polycarbonate resin. The casing 60 is formed into a sphere shape by a manufacturing process of a baseball ball so that the wire can be easily wound. A core body 90 including a wiring board 50 and a button battery 45 is housed in the casing 60. The casing 60 in which the core body 90 is housed is housed in a baseball ball in a state of being housed in an elastic member 70 which is also formed into a ball shape. [0027] The button battery 45 is disposed in the center of the case 60 and is used as a power source for the core 100 for a ball to which a sensor is added. The coin cell 45 is formed in a disc shape with a metal body on the surface, and has the heaviest mass compared to all other elements. [0028] The wiring board 50 is generally referred to as a rigid flexible printed board. As shown in FIG. 3, the wiring board 50 is formed of a plurality of flexible portions 51 having flexibility and a plurality of rigid portions 53 having rigidity. The rigid portion 53 of the wiring board 50 is formed thicker than the flexible portion 51 as shown in FIG. 1. [0029] As shown in FIG. 3, the flexible portion 51 includes a first flexible portion 51a formed in a long rectangular shape, a second flexible portion 51b formed in a short rectangular shape, and the like. The shorter rectangular third flexible portion 51c is composed of three parts, and the plurality of rigid portions 53 are formed by the first rigid portion 53a formed in a substantially circular shape in a plan view and formed in a substantially circular shape in a similar plan view. The second rigid portion 53b and three portions of the third rigid portion 53c formed in a substantially square shape in a plan view are configured. [0030] The wiring board 50 is configured to have a first rigid portion 53a connected between the first flexible portion 51a and the second flexible portion 51b, and a connection between the second flexible portion 51b and the third flexible portion 51c. A second rigid portion 53b is provided, and a third rigid portion 53c is connected to an end portion of the third flexible portion 51c. [0031] In the first flexible portion 51a of the flexible portion 51, the first functional element 11, that is, the first antenna 11a is formed along the longitudinal direction of the first flexible portion 51a. The first rigid portion 53a of the rigid portion 53 is a circuit board 40. A second antenna 21 is formed on the second rigid portion 53b. A second functional element 32, that is, a geomagnetic sensor 31c is mounted on the third rigid portion 53c. [0032] That is, the first antenna 11a of the first functional element 11, the circuit substrate 40, the second antenna 21, and the geomagnetic sensor 31c of the second functional element 32 have flexibility due to the formation of the wiring substrate 50. The flexible portion 51 is connected into one body. The geomagnetic sensor 31c and the second antenna 21 are provided on the surface of the rigid portion 53 on the same side as the substrate surface 41a side of the circuit substrate 40, and the first antenna 11a is provided on the circuit substrate 40 side. The substrate surface 41a side is the surface of the flexible portion 51 on the opposite side. [0033] As shown in FIGS. 1 and 2, a plurality of electronic components 30 are mounted on a substrate surface 41 a (upper surface) of one of the substrate surfaces 41 of the circuit substrate 40 that is a part of the wiring substrate 50. The button battery 45 is mounted on the other substrate surface 41 b (lower surface) of the substrate surface 41 of the circuit substrate 40. [0034] The button battery 45 is provided with two electrodes 45a of a positive electrode and a negative electrode, and the two electrodes 45a are electrically and mechanically connected to the circuit substrate 40 by solder. A double-sided adhesive tape 43 is mounted between the surface on the upper side of the button battery 45 and the other substrate surface 41 b of the circuit substrate 40, and the circuit substrate 40 is then fixed to the button battery 45. [0035] Among the plurality of electronic components 30 mounted on one of the substrate surfaces 41a of the circuit substrate 40, a measurement element 31 including an acceleration sensor 31a and an angular velocity sensor 31b is mounted on one of the circuit substrates 40 The center of the substrate surface 41a. In the core body 100 for a ball to which a sensor is added, the acceleration sensor 31 a and the angular velocity sensor 31 b are housed in a single package. A memory element 37 is mounted on a substrate surface 41 a of one of the circuit substrates 40. [0036] The acceleration sensor 31a can detect the stationary state of the baseball ball. The angular velocity sensor 31b can detect the movement of the ball. The acceleration sensor 31a and the angular velocity sensor 31b are not affected by the metal body. Therefore, even if the metal body, that is, the button battery 45 is nearby, it can be measured without problems. Moreover, since the acceleration sensor 31a and the angular velocity sensor 31b are mounted in the center of the substrate surface 41a on one side of the circuit substrate 40, they are not easily affected by centrifugal force, and can be accurately measured. [0037] As the measurement element 31 mounted on the ball core body 100 to which a sensor is added, in addition to the acceleration sensor 31a and the angular velocity sensor 31b, there is a third rigid portion mounted on the wiring board 50. 53 geomagnetic sensor 31c. The geomagnetic sensor 31c can detect changes in the number of rotations of the ball and the rotation axis (direction of rotation). [0038] The acceleration element 31a, the angular velocity sensor 31b, and the geomagnetic sensor 31c are provided as the measurement element 31, and the ball itself can be detected from the start of the pitching action of the pitcher to the catcher's catching of the ball. How the ground axis rotates. [0039] The start of the pitching action of the pitcher can be detected by the angular velocity sensor 31b. Generally, even if the ball moves only slightly, the angular velocity sensor 31b can output at least several detection values. Before the pitcher enters the pitching action, that is, in a state where the fixed position (SET POSITION) is stationary, the angular velocity sensor 31b detects The value is equal to or less than a predetermined value. Therefore, when the detection value of the angular velocity sensor 31b is equal to or less than the predetermined value, it can be determined that the pitching operation of the pitcher has started. Therefore, the position of the ball at this time becomes the reference position for measurement. When determining the reference position, an acceleration sensor 31a may be used in combination. [0040] After that, after the pitcher performs the pitching operation, data on the rotation direction, the rotation speed, and the position of the ball with respect to the reference position is obtained, and the data is recorded in the memory element 37 mounted on the circuit board 40. [0041] In addition to the measurement element 31 or the memory element 37, a first wireless communication circuit 13 and a first wireless communication circuit 10 are formed on the substrate surface 41a (upper surface) of the circuit substrate 40. The second wireless communication circuit 23 of the second wireless communication unit 20 is mounted with the first wireless communication electronic component 35a and the second wireless communication electronic component 35b used as the first wireless communication circuit 13 and the second wireless communication circuit 23. The formed communication electronic component 35. [0042] The first wireless communication unit 10 has a wireless communication function called Bluetooth (registered trademark), is composed of the first wireless communication circuit 13 and the first antenna 11a, and is set to be capable of communicating with the outside. Therefore, the data of the measurement results obtained by the acceleration sensor 31a, the angular velocity sensor 31b, and the geomagnetic sensor 31c can be transmitted to the outside. [0043] The second wireless communication unit 20 has a short-range wireless communication function called NFC (Near Field Radio Communication) whose communication distance is shorter than the communication distance of the first wireless communication unit 10 described above. The wireless communication circuit 23 and the second antenna 21 are configured. NFC is used when a reset of the system is required. [0044] Next, the arrangement of each element in the structure of the core body 100 for a ball to which a sensor is added will be described with reference to FIGS. 4 and 5. FIG. 4 is a cross-sectional perspective view of the core body 90 after the casing 60 is removed, taken along the line AA in FIG. 2, and FIG. 5 is the same as the AA in FIG. Line section view. [0045] As shown in FIG. 4, in the core body 90, the first functional element 11 that is the first antenna 11a for the first wireless communication unit 10 is formed above the first flexible portion 51a of the wiring board 50 ( + Z side), and the second functional element 32, that is, the geomagnetic sensor 31c, is mounted on the upper side (+ Z side) of the third rigid portion 53c of the wiring board 50. The circuit board 40 is formed on the first rigid portion 53 a of the wiring substrate 50, and the second antenna 21 is formed on the lower side (−Z side) of the second rigid portion 53 b of the wiring substrate 50. [0046] As described above, the first functional element 11 is the first antenna 11a, the circuit substrate 40, the second antenna 21, and the second functional element 32 is the geomagnetic sensor 31c. The wiring substrate 50 is connected to form a single body. As shown in FIG. 5, in the wiring board 50, one end of the first flexible portion 51 a of the flexible portion 51, two end portions of the second flexible portion 51 b, and one end of the third flexible portion 51 c. The parts are respectively bent, and are disposed in the case 60 with the button battery 45 as a center. The first flexible portion 51a, the second flexible portion 51b, and the third flexible portion 51c of the flexible portion 51 are in contact with the inner wall 61 of the case 60, respectively. [0047] Therefore, the first functional element 11, that is, the first antenna 11a, is disposed so as to be attached to the inner wall 61 on the upper side of the housing 60 facing the substrate surface 41a of the circuit board 40, and the first The two functional elements 32, that is, the geomagnetic sensor 31c, are arranged so as to be attached to the inner wall 61 on the lower side of the casing 60 on the opposite side to the first functional element 11. Therefore, the first functional element 11 and the second functional element 32 are disposed on the inner wall 61 facing each other. [0048] That is, the first functional element 11 that is the first antenna 11a is located on the electronic component 30 side of the circuit board 40, and is disposed separately from the electronic component 30, and the second functional element 32 is the geomagnetic sensor 31c. It is arranged separately from the button battery 45. As described above, a double-sided adhesive tape 43 is mounted between the surface on the upper side of the button battery 45 and the other substrate surface 41b of the circuit substrate 40, and the other substrate surface 41b of the circuit substrate 40 is then fixed to the button. Battery 45. That is, the first rigid portion 53 a of the plurality of rigid portions 53 of the wiring board 50 is adhered to the button battery 45. [0049] The second antenna 21 is integrally connected to the circuit substrate 40 by the wiring substrate 50, and the circuit substrate 40 and the second antenna 21 are disposed so as to support the button battery 45. Between the button battery 45 and the second antenna 21, in order to prevent the second antenna 21 from being easily affected by the metal body, that is, the button battery 45, a magnetic shield (not shown) is attached to the battery side, and is separated from each other. Prescribed interval. A reinforcing rib 63 extending from the inner wall 61 of the case 60 is formed at this interval. [0050] Next, the relationship between the core body 90 and the housing 60 in the structure of the ball-added core body 100 with a sensor, and the ball-shaped core body 100 and the elastic member 70 with a sensor are described with reference to FIG. 6. The relationship will be explained. FIG. 6 (a) is an exploded perspective view showing the relationship between the core body 90 and the case 60, and FIG. 6 (b) is an exploded perspective view showing the relationship between the ball core body 100 and the elastic member 70 to which a sensor is added. [0051] As shown in FIG. 6 (a), the case 60 is composed of two hemispherical first cases 60a and two hemispherical second cases 60b. The core body 100 for a ball to which a sensor is added is formed by holding a core body 90 in a hemispherical first case 60a and a second hemispherical case 60b. [0052] As shown in FIG. 6 (b), the elastic member 70 is composed of a hemispherical first elastic member 70a and a hemispherical second elastic member 70b. The sensor-added ball core 100 is held by the hemispherical first elastic member 70a and the hemispherical second elastic member 70b, and the sensor-added ball core 100 is stored in the elastic member 70. Inside. Thereafter, two of the first elastic member 70a and the second elastic member 70b are joined by an adhesive (not shown). The first elastic member 70a and the second elastic member 70b are formed of an elastomer resin. [0053] After that, a thread such as wool is wound around the sensor-added ball core 100 housed in the elastic member 70, and it is wrapped in cowhide to complete a sensor for baseball. Ball. The mass of the core 100 for a ball with a sensor is set to be the same as the mass of the core for a ball built in a normal baseball ball without a sensor built in. [0054] The effects of this embodiment will be described below. [0055] In the core body 100 for a ball to which a sensor is added, the first functional element 11 and the second functional element 32 and the circuit substrate 40 are connected to each other by a flexible wiring substrate 50, and are disposed by being bent. Therefore, each element is easily arranged at a proper position in the sphere-shaped housing 60. Therefore, accurate measurement results can be obtained. [0056] The first functional element 11 and the second functional element 32 are arranged on the inner wall 61 of the case 60 facing each other, and the button cell 45 having the highest quality is arranged in the center of the case 60, so it can be obtained in the element arrangement Weight balance. [0057] The second functional element 32, that is, the geomagnetic sensor 31c, is separated from the plurality of electronic components 30 and the first antenna 11a for the first wireless communication unit 10, and is separated from a larger metal body, that is, Since the button batteries 45 are arranged separately, they are not easily affected by other components or metal bodies. Therefore, an accurate measurement result by the geomagnetic sensor 31c can be obtained. [0058] The angular velocity sensor 31b and the acceleration sensor 31a are arranged in the center of the circuit board 40, so the angular velocity sensor 31b and the acceleration sensor 31a are not easily affected by centrifugal force. Therefore, it is possible to obtain accurate measurement results based on the acceleration sensor and the angular velocity sensor. [0059] The circuit board 40 and the second antenna 21 are arranged so as to support the button battery 45. Therefore, the second antenna 21 and the first antenna 11a on the circuit board 40 side are shielded by the button battery 45 and do not affect each other. . [0060] Furthermore, since the first wireless communication unit 10 and the second wireless communication unit 20 are provided, the internal data can be transmitted to the outside by the first wireless communication unit 10, and the system is performed by the second wireless communication unit 20. Restart. [0061] As described above, in the core body for a ball with a sensor of the present invention, the first functional element, the second functional element, and the circuit substrate are connected together by a flexible wiring substrate and are bent. Since it is arranged, each element is easily arrange | positioned in the appropriate position in a sphere-shaped housing. Therefore, accurate measurement results can be obtained. [0062] The present invention is not limited to the above-mentioned embodiment, and various modifications can be made without departing from the gist. For example, the core body 100 for a ball with a sensor is described by taking an example in which a ball with a sensor is built in baseball, but it may be built in a softball or a handball. Sensors used in other games.

[0063]

10‧‧‧The first wireless communication department

11‧‧‧The first functional element

11a‧‧‧1st antenna

13‧‧‧The first wireless communication circuit

20‧‧‧The second wireless communication department

21‧‧‧ 2nd antenna

23‧‧‧ 2nd wireless communication circuit

30‧‧‧Electronic components

31‧‧‧Measuring components

31a‧‧‧Acceleration sensor

31b‧‧‧Angular Velocity Sensor

31c‧‧‧Geomagnetic sensor

32‧‧‧The second functional element

40‧‧‧circuit board

41‧‧‧ substrate surface

41a‧‧‧one side

41b‧‧‧ the other side

45‧‧‧ button battery

50‧‧‧wiring board

51‧‧‧Flexible

53‧‧‧ rigid part

60‧‧‧Shell

60a‧‧‧The first case

60b‧‧‧2nd case

61‧‧‧Inner wall

90‧‧‧ core body

100‧‧‧ Ball core with sensor

[0022] FIG. 1 is a perspective view of a ball core body to which a sensor is added according to an embodiment of the present invention. [Fig. 2] A plan view of a ball core with a sensor attached. [Fig. 3] A schematic diagram showing a configuration on a wiring board. [Fig. 4] A perspective view of a cross section of the core body. [Fig. 5] A cross-sectional view of a ball core with a sensor attached. [Fig. 6] An exploded perspective view showing the relationship between the core body and the casing, and the relationship between the ball core body and the elastic member with the sensor. [Fig. 7] A sectional view of the structure of a conventional basketball.

Claims (6)

A ball core body with a sensor attached is a ball player built into a ball game, which is characterized by having a shell formed into a ball shape; a first functional element; a second functional element; a circuit substrate; and a button battery; The first functional element, the second functional element, and the circuit substrate are connected together by a flexible wiring substrate, and the wiring substrate is bent and disposed in the housing. For example, the ball core with sensor attached to item 1 of the patent application, wherein the button battery is arranged in the center of the casing, and a plurality of electronic components are installed on one side of the circuit board, and the button battery is It is mounted on the other side of the circuit board, the first functional element is disposed on the inner wall of the housing facing the surface of the circuit substrate, and the second functional element is disposed opposite to the first functional element. The inner wall of the above-mentioned housing on the side. For example, the core body for a ball with a sensor attached to the second item of the patent application has a first wireless communication unit. The first functional element is the first antenna in the first wireless communication unit, and the first antenna system is The electronic component is disposed separately from the electronic component, and the second functional component is a geomagnetic sensor that measures a change in the rotation axis of the ball and the number of rotations. The geomagnetic sensor is separated from the button battery. While being configured. For example, the core body for a ball with a sensor attached to item 2 of the patent application, wherein an acceleration sensor and an angular velocity sensor are arranged in the center of the one surface of the circuit board. For example, the core body for a ball with a sensor attached to the third item of the patent application includes a second wireless communication section; and a second antenna in the second wireless communication section; The second antenna is through the wiring board. The circuit board and the second antenna are integrally connected to each other, and the circuit board and the second antenna are disposed so as to support the button battery. For example, the sensor-added ball core body in item 5 of the patent application, wherein the second wireless communication unit has a short-range wireless communication function, and the first wireless communication unit has a communication distance longer than that of the second wireless communication minister. Wireless communication function.