WO2018070213A1

WO2018070213A1 - Sensor-equipped ball core body

Info

Publication number: WO2018070213A1
Application number: PCT/JP2017/034257
Authority: WO
Inventors: 剛史野口; 東一奥野; 政治礒部
Original assignee: アルプス電気株式会社
Priority date: 2016-10-14
Filing date: 2017-09-22
Publication date: 2018-04-19
Also published as: TW201819002A

Abstract

[Problem] To provide a sensor-equipped ball core body, from which accurate measuring results can be obtained. [Solution] 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

Ball core body with sensor

The present invention relates to a ball core body with a sensor, and more particularly to a ball core body with a sensor incorporated in a ball for ball games such as baseball.

Conventionally, a ball with a sensor with a built-in sensor and a training system using the ball have been developed and put into practical use for training a player who performs a ball game.

ボール Such a sensor-equipped ball and a training system using the ball are disclosed in Patent Document 1. Hereinafter, the basketball 900 and the basketball detection system disclosed in Patent Document 1 will be described with reference to FIG. FIG. 7 is a cross-sectional view showing the structure of basketball 900.

回路 As shown in FIG. 7, circuit electronics 1318 is arranged in the center of basketball 900. The circuit electronics 1318 is configured to transmit one or more signals to indicate where the basketball 900 itself is located, motion, speed, acceleration, rotation, and temperature. That is, a circuit board is mounted in the circuit electronics 1318. On the circuit board, sensors such as a pressure sensor, an optical sensor, a magnetometer as a geomagnetic sensor, an accelerometer as an acceleration sensor, a signal transmitter And circuit components for this purpose are mounted.

Also, the basketball detection system determines whether or not a shot of the basketball 900 is scored based on a signal received from at least one sensor located in the basketball 900. The basketball sensing system allows players to track their performance to distinguish between successful and unsuccessful shot characteristics and, in some embodiments, compare their performance to other players' personal goals or performances. Enable. With such a basketball and training system, players can improve their basketball shooting skills.

Japanese Patent Application Laid-Open No. 2014-193346

However, when the basketball 900 is applied to a small system such as a baseball ball, various sensors and circuit components including the geomagnetic sensor are all concentrated in the center of the ball. There was a problem of being easily affected by parts and metal bodies, for example, batteries. For this reason, the measurement results measured by the geomagnetic sensor are inaccurate. Moreover, in order to obtain an accurate measurement result, it is necessary to arrange each component at an appropriate position.

The present invention has been made in view of such a state of the art, and an object thereof is to provide a ball core body with a sensor from which an accurate measurement result can be obtained.

In order to solve the above problems, a ball core body with a sensor according to the present invention is a ball core body with a sensor incorporated in a ball for ball games, and includes a case having a spherical shape, a first functional component, A bi-functional component, a circuit board, and a button battery, wherein the first functional component, the second functional component, and the circuit board are integrally connected by a flexible wiring board; Is bent and disposed in the case.

The ball core body with a sensor configured in this way is formed in a spherical shape because the first functional component, the second functional component, and the circuit board are integrally connected by a flexible wiring board and bent. Each component can be easily arranged at an appropriate position in the case. Therefore, an accurate measurement result can be obtained.

In the above configuration, the button battery is disposed in the center of the case, and a plurality of electronic components are mounted on one surface of the circuit board, and the button battery is mounted on the circuit board. The first functional component mounted on the other surface is disposed on the inner wall of the case facing the surface of the circuit board, and the second functional component is opposite to the first functional component. It is characterized by being arranged on the inner wall of the case on the side.

In the ball core body with a sensor configured as described above, the first functional component and the second functional component are arranged on the inner walls of the case facing each other, and the button cell having the largest mass is arranged in the center of the case. Therefore, it is possible to perform component placement with a balanced weight.

Further, in the above configuration, the electronic device includes a first wireless communication unit, the first functional component is a first antenna for the first wireless communication unit, and the first antenna is on the electronic component side. The second functional component is a geomagnetic sensor for measuring a change in the rotation axis of the ball and the number of rotations, and the geomagnetic sensor is separated from the button battery. It has the characteristic of being arranged.

In the ball core body with a sensor configured in this way, the geomagnetic sensor as the second functional component is arranged away from the button battery, which is a wide metal body, so that it is difficult to be affected by the metal body. it can. Therefore, an accurate measurement result by the geomagnetic sensor can be obtained.

In the above-described configuration, an acceleration sensor and an angular velocity sensor are arranged in the center of the one surface of the circuit board.

Since the sensor-equipped ball core body configured as described above has the angular velocity sensor and the acceleration sensor arranged at the center of the circuit board, it can be made less susceptible to the centrifugal force on the angular velocity sensor and the acceleration sensor. Therefore, accurate measurement results by the acceleration sensor and the angular velocity sensor can be obtained.

Further, in the above configuration, a second wireless communication unit and a second antenna for the second wireless communication unit are provided, and the second antenna is integrally connected to the circuit board by the wiring board. And the circuit board and the second antenna are arranged so as to sandwich the button battery.

In the ball core body with a sensor configured as described above, the circuit board and the second antenna are arranged so as to sandwich the button battery, so that the second antenna and the first antenna on the circuit board side are arranged. They are shielded by button cells and do not affect each other.

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 longer communication distance than the second wireless communication unit. Have

Since the ball core body with a sensor configured as described above includes the first wireless communication unit and the second wireless communication unit, the internal data can be transmitted to the outside by the first wireless communication unit. At the same time, the second wireless communication unit can restart the system.

In the ball core body with a sensor according to the present invention, the first functional component, the second functional component, and the circuit board are integrally connected by a flexible wiring board, and are bent and arranged. It is possible to easily arrange each component at an appropriate position inside. Therefore, an accurate measurement result can be obtained.

It is a perspective view which shows the core body for balls with a sensor in embodiment of this invention. It is a top view of the core body for balls with a sensor. It is a schematic diagram which shows the structure on a wiring board. It is a cross-sectional perspective view of a core body main body. It is sectional drawing of the core body for balls with a sensor. It is a disassembled perspective view which shows the relationship between a core body main body and a case, and the relationship between a core body for balls with a sensor, and an elastic member. It is sectional drawing which shows the structure of the basketball which concerns on a prior art example.

[Embodiment]
Hereinafter, the present invention will be described with reference to the drawings. The sensor-equipped ball core body 100 according to an embodiment of the present invention is incorporated in a ball game ball and is used for training a player who performs a ball game. In particular, it was developed by a baseball pitcher to know how the thrown ball rotates and how the rotation changes the trajectory of the ball. The use of the ball core body with a sensor of the present invention is not limited to the embodiment described below, and can be appropriately changed. In the present specification, for convenience, the right side, the left side, the rear side, the front side, the upper side, and the lower side may be described in the description for each drawing. This indicates the -X side, + Y side, -Y side, + Z side, and -Z side, and does not limit the installation direction of the product or the direction during use.

First, with reference to FIG. 1 thru | or FIG. 3, the structure and structure of the core body 100 with a sensor are demonstrated. FIG. 1 is a perspective view showing a ball core body 100 with a sensor according to an embodiment of the present invention, and FIG. 2 is a plan view of the ball core body 100 with a sensor. FIG. 3 is a schematic diagram showing a configuration on the wiring board 50. In FIGS. 1 and 2, the case 60 is displayed as being transparent.

As shown in FIGS. 1 and 2, the ball core body with sensor 100 includes a core body main body 90 and a case 60, and the ball core body main body 90 includes the button battery 45 and flexible wiring. It is comprised with the board | substrate 50. FIG.

The case 60 is made of a polycarbonate resin. The case 60 has a spherical shape so that a thread can be easily wound in the manufacturing process of a baseball, and the core body 90 including the wiring board 50 and the button battery 45 is accommodated in the case 60. The case 60 in which the core body main body 90 is accommodated is accommodated in a baseball ball while being accommodated in an elastic member 70 having a spherical shape.

The button battery 45 is disposed in the center of the case 60 and is used as a power source for the ball core body 100 with a sensor. The button battery 45 has a disk shape whose surface is a metal body, and has the heaviest mass compared to all other components.

The wiring substrate 50 is generally called a rigid flexible substrate, and is formed of a plurality of flexible portions 51 having flexibility and a plurality of rigid portions 53 having rigidity, as shown in FIG. As shown in FIG. 1, the rigid portion 53 of the wiring board 50 is formed thicker than the flexible portion 51.

As shown in FIG. 3, the flexible portion 51 includes a first flexible portion 51a having a long rectangular shape, a second flexible portion 51b having a short rectangular shape, and a third flexible portion 51c having a short rectangular shape. The plurality of rigid portions 53 include a first rigid portion 53a having a substantially circular shape in plan view, a second rigid portion 53b having a substantially circular shape in plan view, and a plan view. The third rigid portion 53c having a substantially square shape is composed of three portions.

In the wiring board 50, the first rigid portion 53a is connected between the first flexible portion 51a and the second flexible portion 51b, and the second rigid portion 53b is connected between the second flexible portion 51b and the third flexible portion 51c. The third rigid portion 53c is connected to the end of the third flexible portion 51c.

The 1st antenna 11a which is the 1st functional component 11 is formed in the 1st flexible part 51a of the flexible part 51 along the longitudinal direction of the 1st flexible part 51a. The first rigid portion 53a of the rigid portion 53 is the circuit board 40, the second rigid portion 53b is formed with the second antenna 21, and the third rigid portion 53c is provided with the second function. A geomagnetic sensor 31c, which is a component 32, is mounted.

That is, the first antenna 11 a that is the first functional component 11, the circuit board 40, the second antenna 21, and the geomagnetic sensor 31 c that is the second functional component 32 are formed by the flexible portion 51 having flexibility to form the wiring board 50. Connected together. 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 one substrate surface 41a side of the circuit board 40, but the first antenna 11a is provided on one side of the circuit board 40. It is provided on the surface of the flexible part 51 on the side opposite to the substrate surface 41a side.

As shown in FIGS. 1 and 2, a plurality of electronic components 30 are mounted on one substrate surface 41 a (upper surface) of the substrate surfaces 41 of the circuit substrate 40 that is a part of the wiring substrate 50. Yes. In addition, the button battery 45 described above is mounted on the other substrate surface 41 b (lower surface) of the substrate surfaces 41 of the circuit substrate 40.

The button battery 45 is provided with two electrodes 45a including a plus electrode and a minus electrode, and the two electrodes 45a are electrically and mechanically connected to the circuit board 40 by solder. A double-sided adhesive tape 43 is attached between the upper surface of the button battery 45 and the other substrate surface 41 b of the circuit board 40, and the circuit board 40 is bonded and fixed to the button battery 45.

Among the plurality of electronic components 30 mounted on one board surface 41 a of the circuit board 40, the measurement component 31 including the acceleration sensor 31 a and the angular velocity sensor 31 b is mounted at the center of the one board surface 41 a of the circuit board 40. Has been. In the ball core body 100 with a sensor, the acceleration sensor 31a and the angular velocity sensor 31b are housed in one package. A memory component 37 is mounted on one board surface 41 a of the circuit board 40.

The acceleration sensor 31a can detect the stationary state of the baseball. The angular velocity sensor 31b can detect the movement of the ball. Since the acceleration sensor 31a and the angular velocity sensor 31b are not affected by a metal body, even if the button battery 45 that is a metal body is in the vicinity, measurement can be performed without any problem. Moreover, since the acceleration sensor 31a and the angular velocity sensor 31b are mounted in the center of one board surface 41a of the circuit board 40, it is hard to receive a centrifugal force and can measure correctly.

As the measurement component 31 mounted on the ball core body with sensor 100, there is a geomagnetic sensor 31c mounted on the third rigid portion 53 of the wiring board 50 described above, in addition to the acceleration sensor 31a and the angular velocity sensor 31b. The geomagnetic sensor 31c can detect changes in the rotation speed and rotation axis (rotation direction) of the ball.

By having the acceleration sensor 31a, the angular velocity sensor 31b, and the geomagnetic sensor 31c as the measuring component 31, how the earth axis of the ball itself rotates from the start of the pitcher's pitching operation until it is caught by the catcher. It is possible to detect whether or not

The start of the pitcher's pitching operation described above can be detected by the angular velocity sensor 31b. Normally, when the ball is moving even a little, the angular velocity sensor 31b outputs at least some detection value. However, before the pitcher enters the pitching operation, that is, when the ball is stationary at the set position, the detection value of the angular velocity sensor 31b. Is below a predetermined value. Therefore, it can be determined that the pitcher's pitching operation starts when the detected value of the angular velocity sensor 31b becomes equal to or less than the predetermined value. Therefore, the position of the ball at this time becomes the reference position for measurement. Note that the acceleration sensor 31a may be used in combination for the determination of the reference position.

Thereafter, when the pitcher performs a pitching operation, the rotation direction and rotation speed of the ball and the position of the ball with respect to the reference position are obtained as data, and the data is recorded in the memory component 37 mounted on the circuit board 40. .

In addition to the measurement component 31 and the memory component 37, the first wireless communication circuit 13 and the second wireless communication unit that form the first wireless communication unit 10 are provided on one substrate surface 41 a (upper surface) of the circuit board 40. The first wireless communication electronic component 35a and the second wireless communication electronic component 35b used in the first wireless communication circuit 13 and the second wireless communication circuit 23 are formed. A communication electronic component 35 is mounted.

The first wireless communication unit 10 has a wireless communication function called Bluetooth (registered trademark), and includes the first wireless communication circuit 13 and the first antenna 11a described above, and can communicate with the outside. Is set to Therefore, data of measurement results obtained by the acceleration sensor 31a, the angular velocity sensor 31b, and the geomagnetic sensor 31c described above can be transmitted to the outside.

The second wireless communication unit 20 has a near field wireless communication function called NFC (Near Field Radio Radio Communication), which has a short communication distance than the communication distance of the first wireless communication unit 10 described above. The circuit 23 and the second antenna 21 described above are included. NFC is used when the system needs to be reset.

Next, with reference to FIG. 4 and FIG. 5, the arrangement of each component in the structure of the ball core body with sensor 100 will be described. 4 is a cross-sectional perspective view of the core body main body 90 with the case 60 removed, as viewed from the line AA in FIG. 2. FIG. 5 is a cross-sectional perspective view of the ball core body 100 with a sensor. It is sectional drawing seen from the A line.

As shown in FIG. 4, in the core body 90, the first antenna 11 a for the first wireless communication unit 10, which is the first functional component 11, is on the upper side (+ Z side) of the first flexible part 51 a of the wiring board 50. The geomagnetic sensor 31c, which is the second functional component 32, 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 part 53a of the wiring board 50, and the second antenna 21 is formed on the lower side (−Z side) of the second rigid part 53b of the wiring board 50. .

In this way, the first antenna 11a, which is the first functional component 11, the circuit board 40, the second antenna 21, and the geomagnetic sensor 31c, which is the second functional component 32, are integrally connected by the wiring board 50. FIG. As shown, the wiring board 50 is bent at one end of the first flexible portion 51a of the flexible portion 51, both ends of the second flexible portion 51b, and one end of the third flexible portion 51c. The button battery 45 is disposed in the case 60 around the center. The first flexible part 51 a, the second flexible part 51 b, and the third flexible part 51 c of the flexible part 51 are in contact with the inner wall 61 of the case 60.

Therefore, the first antenna 11a which is the first functional component 11 is disposed so as to stick to the upper inner wall 61 of the case 60 facing the one substrate surface 41a of the circuit board 40, and the second functional component. The geomagnetic sensor 31 c, which is 32, is disposed so as to stick to the lower inner wall 61 of the case 60 opposite to the first functional component 11. Therefore, the first functional component 11 and the second functional component 32 are arranged on the inner walls 61 facing each other.

In other words, the first antenna 11a, which is the first functional component 11, is arranged on the electronic component 30 side on the circuit board 40 so as to be separated from the electronic component 30, and the geomagnetic sensor 31c, which is the second functional component 32, is provided. The button battery 45 is spaced apart. Further, as described above, the double-sided adhesive tape 43 is attached between the upper surface of the button battery 45 and the other substrate surface 41b of the circuit board 40, and the other substrate surface 41b of the circuit board 40 is connected to the button. The battery 45 is adhered and fixed. That is, the first rigid portion 53 a of the plurality of rigid portions 53 of the wiring board 50 is bonded to the button battery 45.

The second antenna 21 is integrally connected to the circuit board 40 by the wiring board 50, and the circuit board 40 and the second antenna 21 are disposed so as to hold the button battery 45 therebetween. Between the button battery 45 and the second antenna 21, a magnetic sheet (not shown) is pasted on the battery side in order to make the second antenna 21 less susceptible to the button battery 45 being a metal body, and A predetermined interval is provided. At this interval, a rib 63 extending from the inner wall 61 of the case 60 is formed.

Next, the relationship between the core body main body 90 and the case 60 and the relationship between the sensor-equipped ball core body 100 and the elastic member 70 in the structure of the sensor-equipped ball core body 100 will be described with reference to FIG. . 6A is an exploded perspective view showing the relationship between the core body 90 and the case 60, and FIG. 6B is an exploded perspective view showing the relationship between the ball core body with sensor 100 and the elastic member 70. FIG. It is.

As shown in FIG. 6A, the case 60 is composed of two parts, a hemispherical first case 60a and a hemispherical second case 60b. The core body for a ball with sensor 100 is formed by sandwiching the core body main body 90 between the hemispherical first case 60a and the hemispherical second case 60b.

Further, as shown in FIG. 6B, the elastic member 70 includes a hemispherical first elastic member 70a and a hemispherical second elastic member 70b. The ball core body with sensor 100 is accommodated in the elastic member 70 by sandwiching the ball core body with sensor 100 between the hemispherical first elastic member 70a and the hemispherical second elastic member 70b. Thereafter, the first elastic member 70a and the second elastic member 70b are bonded together by a bonding agent (not shown). The first elastic member 70a and the second elastic member 70b are formed of an elastomer resin.

The ball core body 100 with a sensor housed in the elastic member 70 is then wound around with a thread such as wool and wrapped with cowhide, thereby completing a ball with a sensor for baseball. The mass of the sensor-equipped ball core body 100 is set to the same mass as the mass of the ball core body incorporated in a normal baseball ball that does not incorporate a commonly used sensor.

Hereinafter, the effects of the present embodiment will be described.

In the ball core body with sensor 100, the first functional component 11, the second functional component 32, and the circuit board 40 are integrally connected by a flexible wiring board 50, and are bent and arranged. Each component can be easily arranged at an appropriate position in the case 60. Therefore, an accurate measurement result can be obtained.

Since the first functional component 11 and the second functional component 32 are disposed on the inner wall 61 of the case 60 facing each other, and the button cell 45 having the largest mass is disposed in the center of the case 60, a weight balance can be achieved. Component placement can be performed.

In addition, the geomagnetic sensor 31c, which is the second functional component 32, is arranged away from the plurality of electronic components 30 and the first antenna 11a for the first wireless communication unit 10, and away from the button battery 45, which is a wide metal body. Therefore, it can be made difficult to be influenced by other parts and metal bodies. Therefore, an accurate measurement result by the geomagnetic sensor 31c can be obtained.

In addition, since the angular velocity sensor 31b and the acceleration sensor 31a are arranged in the center of the circuit board 40, it is possible to make it less susceptible to the centrifugal force on the angular velocity sensor 31b and the acceleration sensor 31a. Therefore, accurate measurement results by the acceleration sensor and the angular velocity sensor can be obtained.

Further, since the circuit board 40 and the second antenna 21 are arranged so as to sandwich the button battery 45, the second antenna 21 and the first antenna 11a on the circuit board 40 side are shielded by the button battery 45. , Each does not affect each other.

Moreover, since it has the 1st radio | wireless communication part 10 and the 2nd radio | wireless communication part 20, while the 1st radio | wireless communication part 10 can transmit internal data outside, the 2nd radio | wireless communication part 20 The system can be restarted.

As described above, in the ball core body with a sensor according to the present invention, the first functional component, the second functional component, and the circuit board are integrally connected by the flexible wiring board, and are arranged by being bent. In addition, each component can be easily arranged at an appropriate position in the spherical case. Therefore, an accurate measurement result can be obtained.

The present invention is not limited to the above-described embodiment, and various modifications can be made without departing from the scope of the invention. For example, although the sensor-equipped ball core body 100 has been described as being incorporated in a ball with a sensor for baseball, it is incorporated in a ball with a sensor for other ball games, such as a softball or a handball. May be.

DESCRIPTION OF SYMBOLS 10 1st wireless communication part 11 1st functional component 11a 1st antenna 13 1st wireless communication circuit 20 2nd wireless communication part 21 2nd antenna 23 2nd wireless communication circuit 30 Electronic component 31 Measurement component 31a Acceleration sensor 31b Angular velocity sensor 31c Geomagnetic sensor 32 Second functional component 40 Circuit board 41 Board face 41a One face 41b The other face 45 Button battery 50 Wiring board 51 Flexible part 53 Rigid part 60 Case 60a First case 60b Second case 61 Inner wall 90 Core body 100 Core body for ball with sensor

Claims

A ball core body with a sensor built in a ball for ball games,
A spherically shaped case, a first functional component, a second functional component, a circuit board, and a button battery;
The first functional component, the second functional component, and the circuit board are integrally connected by a flexible wiring board, and the wiring board is bent and disposed in the case.
A core body for a ball with a sensor.
The button battery is disposed in the center of the case;
A plurality of electronic components are mounted on one surface of the circuit board, and the button battery is mounted on the other surface of the circuit board,
The first functional component is disposed on the inner wall of the case facing the surface of the circuit board, and the second functional component is disposed on the inner wall of the case on the side opposite to the first functional component. ing,
The ball core body with a sensor according to claim 1.
A first wireless communication unit;
The first functional component is a first antenna for the first wireless communication unit, and the first antenna is disposed on the electronic component side apart from the electronic component,
The second functional component is a geomagnetic sensor for measuring a change in the rotation axis of the ball and the number of rotations, and the geomagnetic sensor is disposed apart from the button battery.
The core body for a ball with a sensor according to claim 2.
In the center of the one surface of the circuit board, an acceleration sensor and an angular velocity sensor are arranged,
The ball core body with a sensor according to any one of claims 2 to 3, wherein the ball core body with a sensor is provided.
A second wireless communication unit, and a second antenna for the second wireless communication unit,
The second antenna is integrally connected to the circuit board by the wiring board, and the circuit board and the second antenna are disposed so as to sandwich the button battery.
The ball core body with a sensor according to claim 3 or 4, wherein the ball core body has a sensor.
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 longer communication distance than the second wireless communication unit;
The ball core body with a sensor according to claim 5.