JPS6024686A - Ball motion detecting device - Google Patents

Abstract

PURPOSE:To evaluate a motion technique by receiving a signal transmitted from a ball containing a transmitting device by a receiving device provided separately, and executing the calculation of the number of times, a calculation of a mark obtained, etc. CONSTITUTION:A ball 2 side electric circuit 1 consists of a pressure sensor 4, an amplifying circuit 5 for amplifying its detecting signal, a transmitting circuit 6 for transmitting this output, and an antenna 7. On the other hand, a receiver side circuit part 3 is provided with a receiving antenna 8, and a buzzar 13 for amplifying a signal from a receiving circuit 9, executing a prescribed operation processing 11, displaying 12 its output, and generating a prescribed informing sound basing on an output. In this state, basing on a detecting signal transmitted from the transmitting device, a numerical information signal related to the external force applied to the ball is received by the receiving device, the numerical information signal related to the external force is calculated, and the number of times of football and the marks obtained are displayed, respectively.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention is applicable to lifting of an athletic ball, particularly in soccer games, or to improving the strength of the ball, such as in the Noshi L-haiku game; The present invention relates to a ball movement detection device which is generally used in a game in which a ball competes for the length of time the ball stays in the air.

Prior Art One of the techniques of conventional soccer players is lifting the ball, that is, one player lifts the ball with the top of the foot, knee,
The game consists of hitting a ball against a target and holding it without letting it fall to the ground. If you compete for the number of times you kick the ball until it falls, the time you hold the ball, and the time it stays in place, you compete. The number of times must be counted by a human. In particular, it is impossible to convert technical difficulty into points, such as the length of time a player holds the ball or the time it takes to stay in the air for one inning, based on the player's individual judgment unless a separate person is assigned to measure the ball.

Furthermore, even if a measurer is assigned, the judgment of the difficulty of the technology is subject to subjectivity, making it difficult to objectively evaluate it.

Purpose of the Invention The present invention has been made in view of the above circumstances, and includes a ball that incorporates an external force detection means, a transmitting means, and a power supply means, and a separate receiver for receiving the transmission No. 4 from the above transmitting means. The receiver counts the number of times the ball is kicked,
Furthermore, by converting and displaying the difficulty of exercise techniques into numerical values, the objective is to enable objective evaluation of techniques and to enable players to concentrate on the competition.

Structure of the Invention The ball motion detection device according to the present invention includes a detection means for detecting an external force applied to the ball, a transmission means for transmitting a detection signal from the detection means to the outside of the ball as a wireless signal, and a battery power source for driving each of these means. An exercise ball with built-in means;
Receiving the detection signal transmitted from the transmitting means 4
a receiver including a calculation means for obtaining a numerical information signal related to the external force applied to the ball based on the number, and a display means for receiving and displaying the numerical information signal from the calculation means; It displays information such as the number of external forces applied to the ball.

Example In FIG. 1, (1) is an exercise ball (2) (second
(3) shows the electric circuit part on the receiver side. The ball-side electric circuit includes a pressure sensor (4) that detects changes in the internal air pressure of the ball, an amplifier circuit (5) that amplifies the detection signal from this pressure sensor (4), and a transmitter circuit (6) that transmits this amplified signal. ) and a transmitting antenna (7), which are built into the ball (2) along with a battery. The receiver side electrical circuit part (3) is
A receiving antenna (8), a receiving circuit (9) that converts the signal from this receiving antenna (8) into an electrical signal, an amplifier circuit a0 that amplifies the signal from this receiving circuit (9), and this amplifier circuit αQ (7) A display (6) that displays output information from the arithmetic and control circuit α◇ of the arithmetic and control circuit α◇ that performs predetermined counting and arithmetic processing based on the signal, and a buzzer that emits a predetermined notification sound based on the output information signal. It is composed of αe.

Figure 2 shows the structure of an exercise ball (2), which is similar to a soccer ball when used for lifting competitions.
Or, it is formed in a shape and size similar to this. a4 is an air injection valve, and ao is a circuit unit constituting the ball-side electric circuit, which is placed at a position facing the valve α→ on the inner surface of the ball (2), and its 2Tt The heights are set approximately equal.

Fig. 3 shows an enlarged view of the circuit unit α0, and (4) is a pressure sensor whose sensing part is output 1.3 times inside the rubber tube αQ, which uses a strain gauge or a diffused semiconductor. A publicly known method can be used.

αη is a circuit that incorporates an amplifier circuit, a transmitting circuit, etc., and is integrated. (f) is the board on which this integrated circuit part αη is placed, 09 is a battery that is pressed against the side of the board α frame opposite to the integrated circuit part αη, and the contact provided on the board (c) (Fig. (not shown), power is supplied to the circuit section α. The pen is
A battery container made of plastic or hard rubber, with a contact point I on the container wall that the side surface touches when the battery is stored.
2]) is provided, and the connection between the circuit board (4) and the circuit section (17) and the battery a9 is established through this contact (211) and the lead wire (a).(2) connects the battery (1') Container (4)
It is a rubber bush that is fixed to the inner side and elastically presses it toward the board α frame side, and a convex ring (T) formed on the side surface is attached to the outer surface of this rubber bush (2) when it is inserted into the container (2). , is shaped to have a surface that matches that of the ball (2). (7) is a transmitting antenna having a length of approximately 30 to 30 mm extending in the gap between the rubber tube 06 and the thread winding nψ, and is in a non-adhered state with the rubber tube αQ and the thread winding layer (g), that is, the antenna (7) Rubber tube of contact part (
The influence of expansion and contraction of 1G and thread-wound layer is set to be as small as possible. This is possible by interposing slippery powder in the area where the antenna (7) is provided. (6) is a middle layer made of rubber, and (g) is a skin layer made of natural leather or synthetic leather.

FIG. 4 shows the display surface and operation/f channel surface of the receiver;
(6) is a display made of known display means such as a fluorescent display tube, a light emitting diode, and a liquid crystal display panel, and includes two types of display parts: a first display part (2) and a second display part (2). Consists of. The first display section (2) displays the number of times the ball has been kicked, and the second display section (g) displays the score. α is the buzzer that emits an electronic sound, Oη is g, the source switch is 0
This is a reset switch that resets the counting circuit, arithmetic circuit, etc.

Here, the score displayed on the second display section (2) represents a value obtained by adding the difficulty of the technique to the number of times of lifting (displayed on the first display section) and converting it into a score.

Difficulty refers to the height of the ball (2) in each kick, that is, the flight time, and this is converted into a signal by detecting the time interval from the first kick to the next kick. As this time interval increases, the score increases in a geometric progression, as shown in Figure 9.

FIG. 5 shows a specific example of the electric circuit built into the ball (2), which will be explained together with the operating waveforms in FIG. 6.

(4) is a strain gauge type pressure sensor, which is composed of four strain gauges (Sl) to (S4) connected in a bridge manner.

α9 is a driver circuit for driving the sensor (4), and 0→ is a driver circuit for driving the sensor (4), specifically a constant voltage circuit. That is, battery 0
+f53 key using lithium TH battery as 9, its output voltage is about 3. oV, but the voltage decreases over time, while driving the pressure sensor (4) and the ball (
2) 0.5 to 2 to accurately detect pressure changes within
．． This is because a constant voltage of Ov is required.

The pressure sensor (4) detects changes in the air pressure inside the ball (2), and outputs an electrical pulse signal when the internal pressure rises rapidly during kicking. (5) is the sensor (
4) is an amplifier circuit that amplifies the detection signal, and an impact pulse P1 is obtained at its output. This pulse P1 corresponds to a kicking ball motion, and its pulse height is proportional to the impact intensity. Signal P shown in FIG.

represents this, and the voltage vo corresponds to the internal pressure of the ball (2) (approximately 0.45 kg/, -j). 04)
is a parasitic device, and an impact pulse Pl is applied to the terminal on the ■ side, and a reference voltage VLh obtained by dividing a constant pressure +V by a variable resistor (2) is applied to the other terminal on the e side.

This reference voltage Vth is higher than the In pressure Vo and is used to remove noise or weak impact pulses from the sensor (4). For example, the minute pulse P'- shown in the signal Pl (Fig. 6) is It is cut off in the vessel ■. Thus, a significant impact pulse P2 is output to the output terminal of the comparator (c). This pulse P2 is transmitted to the ball (2) via a transmitting circuit (6) and a transmitting antenna (7).
Sent to outside space. Note that the signal CP in FIG. 6 indicates a clock pulse waveform output from an oscillator (to) (FIG. 7), which will be described later.

Fig. 7 shows an example of the signal processing circuit of the receiver side circuit section (3), where (8) is the receiving antenna, (9) and (10) are the receiving antenna (9) and (10) the receiving signal 4 of this antenna (F3). The receiving circuit and amplifier circuit (b) that converts into an electrical signal and reproduces the impact pulse P2 is an AND gate to which this pulse P2 is input at one end, and (c) is the number of times the output of this AND gate t'V) is added. The counter (to) is a comparator that takes the output of this number counter (to) as one input and the signal corresponding to the number of times "1" as the other input. ) when the output of H(
Outputs a high) level signal. The first stage circuit (40i) is a continuous sound signal with a fixed time width, the second stage circuit (40ii) is a single sound signal between 11i1, and the third stage circuit (40iii) is a continuous sound signal with a fixed time width. S
The 14-stage FF MP& (40iv) outputs a continuous sound signal with a fixed time width.

Each output signal from these four stages #+(40i) to (40iv) is transmitted to the driver circuit θ■
, and the buzzer (to) will sound. 61) is a driver circuit that receives a signal from a number counter (c) and obtains a display drive signal, and (2) is a first display section on which the number of times is displayed. 03 is an AND gate that generates a signal obtained by inverting the output of the AND gate (2) and the output of the comparator (2) via an inverter (2), and its output is sent to the second stage circuit (40i
i). 06) is an oscillator that generates a clock pulse CP, and this pulse CP is input to the counting terminal of a time counter (/46') via an AND gate (4υ). (Li7) is a set/reset circuit that generates a pulse P2.
When input, a reset signal and a set signal are successively outputted immediately after that, and are added to the time counter 00. The time counter OQ first clears its counting contents by a reset signal, and is enabled to count by a subsequent set signal. This reset and set signal is
output in synchronization with pulse CP.

The θ frame is an arithmetic circuit that receives the output of the time counter θ0 and executes the following predetermined arithmetic operation.

Y = (α / TI) β ° song ° (1) Here, α and β are constants, and α>10 and β≧1.

Ti is the period from the '3rd pulse P2 to the (i+1)th pulse P2-, and 0.05SeC≦Ti
<3.0 is within the range. The value of Y represents the score, and as the value of the period T1 is large, the value increases in a geometric progression. The curve is shown in FIG. (/
4')) is a latch circuit, and (e) is an adder, which adds the calculation result by the calculation circuit 08) and the contents of the four latch circuits (4'), and the result is held in θ latch circuits.

In this way, the latch circuit θ9) holds the sum of the scores up to the first one, and each time the i+1th score is obtained from the arithmetic circuit (goods), it is accumulated via the adder (to). go. G is a driver circuit that receives a signal from the latch circuit θ9) and obtains a display drive signal, and (G) is a second display section on which scores are displayed. (b) is the time counter (4
This is a comparator that takes the time signal Ti from G as an input signal and inputs the time signal TO set as the maximum time as the basic school bond. When the relationship Ti < ro is satisfied,
It is determined that it is in a normal state and an L (low) level signal is obtained at its output. In this embodiment, this time To is set to "3 seconds". This is due to the following reasons. In other words, in general, in a ball lifting competition, the period from the first impact to the second impact corresponds to the height of the kicked ball, and the ball is kicked up high without falling to the ground. Since holding it requires a high level of skill, this period To cannot be infinitely long, and it is based on the assumption that the limit is about 3 seconds, judging from the skill level of a normal player. be. The output of this comparator (a) is input to the third stage circuit (4Qiii) of the electronic sound generating circuit θ0, and at the same time, it is input to the antgame IJ17 via the NOAKATE 64).
) Gte respectively. After the pulse P2 is output, if the time TO has passed and the pulse P2 is still not output, the output of the comparator changes to the 1H" level, and the output of the NOR Gate (Incorporated) is inverted to the 1L" level. ANDGATE @(/i9 is blocked.

In such a case, an electronic sound (intermittent sound) is used to indicate that the time is over, a rule has been violated, etc. In this case, the contents of the time counter θQ counted until reaching the time To after the last pulse P2 is output are calculated by the arithmetic circuit ■
It is necessary to control the data so that it is not forwarded to This is done using the signal from the set/reset circuit G17).
It is configured to execute calculation based on the contents of the time counter θ0 counted during the period from the i-th pulse generation time to the 1-1-1th pulse generation time only when the th pulse P! arrives. This can be achieved by

) is a comparator that takes the time signal Ti from the time counter @0 as an input signal and inputs the time signal T8 set as the minimum period as a reference, and when the relationship Ti≧Ta is satisfied, it is in a normal state. A ``L'' level signal is obtained at its output. In this embodiment, this time Ts is “0
．． 05 seconds". Ren is due to the following reasons. In other words, if the period of impact before and after is extremely short, if the ball falls to the ground and the bounce is naturally attenuated to 0, or if the height of the kick is kept extremely low and the number of kicks is increased by 1. force) which is considered to be a case where the intention is to cause
, 05 seconds." If the time Ti is smaller than this reference time T8, the output C of the comparator (to)
It changes to "H" level, so the output is the same as in Noah game I "L".
”Flip to level, and gate @(c); 111i
#do.

As a result, the number counter G → and the time counter Gli
Both stop the counting operation.

The arrow indicated by (R) in the figure is a reset signal, which is generated when the reset switch C (FIG. 4) is operated and when the YL# switch 0υ (FIG. 4) is turned on.

Next, the operation of the circuit will be explained. In the initial state,
All the circuits are in the reset state, and the output of the comparator 6 is both "L" at the lever 11, and the NOR gate ←Φ
The output of is "H", so the AND gate @(c) is in an open state. In such a state, if the first impact pulse P2 is generated by applying an external force such as a kicking motion to the ball (2), this pulse P2 is passed through the AND gate @■ and is counted by the number counter (H). ) and time counter Gle. At the number of times counter @l
When " is counted, both of the two comparator shafts become @1", and an H level signal is obtained at the output. This H level signal causes the first stage circuit θ(1(1,
It operates for 6 seconds and a continuous sound with a certain time width is emitted.

This electronic sound means the start. Number of times counter (to)
The contents are displayed on the first display section (A) via the driver circuit 6υ.
is given, and the number of times 11- is displayed.

Next, when the second impact pulse P2 is input, the content of the number counter (2) changes to "2".

At this time, the two outputs of the comparator C1 do not match, so its output changes to L level. Therefore, the output of the inverter 04) is H, and the two inputs of the AND gate (C) both become fI, and the output of the comparator C1 becomes fI. Get H. This H level signal activates the second stage circuit (junior ii) of the electronic sound generating circuit θ0).
Instantly, a fishing ring sound is emitted. This means that external force is applied for the second and subsequent times.

When the second impact pulse P1 is input to the time counter θ0, the contents of the count up to the time of inputting this pulse are input to the next stage arithmetic circuit θ frame, and the score conversion as described above is executed. Initially, the stored content of the latch circuit ω is zero, so this calculation result is stored in the latch circuit θ via the adder, and this score information is transmitted via the driver circuit G to the second display section (tort). ) and the score will be displayed.

In this way, each time the impact pulse P2 is applied, the content of the same number counter (to) is incremented by "1", and the content near the time counter θ is processed through the arithmetic circuit θ frame, and the score is given as a reward. The numbers are accumulated in the latch circuit θ9), and the number of times and the score are displayed on the first display section (a) and the second display section 01, respectively.

After the impact pulse 22 is generated, if the next pulse P2 does not arrive during the time TO (3 seconds), the output of the comparator changes to "H" and the AND gate 37) (c) is closed. At the same time, the transmission of count signals to the number counter (to) and time counter is prohibited, and at the same time, the electronic sound generation circuit (40, third stage F@(40iii)) is activated to emit a continuous sound having a fixed time width. This electronic sound means that the time has expired or that the rules have been violated.

On the other hand, if the ball falls to the ground after the competition and its bounce is attenuated, the impact pulse P2
The pulse interval becomes gradually shorter, and this interval becomes time T8
(0.05 seconds) or less, the output of the comparator (G) changes to "H', and the AntoGe-1-@C4 clause is closed via the Noah Gate. This is the same as above. Counting of the number counter (to) and time counter θ0 is prohibited, and at the same time, the fourth stage circuit (40) of the electronic sound generation circuit θ0) is prohibited.
iv) is activated, and a continuous sound with a certain time width is emitted. This electronic sound means the competition is over.

Although the intended purpose is achieved by the circuit configuration described above, similar processing can actually be performed by a microcomputer. This will be explained using the program flowchart shown in FIG. Power switch O1 now
When the start is interrupted due to turning on, etc., the calculation section, storage section, etc. are all reset. Next up is Impact Pulse P.
It is determined whether pulse P2 has been input, and if pulse P2 is present, a start sound, which is a continuous sound, is emitted.

Next, the time counter starts counting the time.

In the next step, the counting time Ti is compared with the longest reference time TO, and if it is determined that Ti≧To, it is determined that the time has exceeded, and a rule violation is indicated by generating an intermittent electronic sound. After the occurrence of such an X consonant, it returns to its initial state. In addition, within the period when Ti < To, 71 more f cattle are added, f rape 2
When the first impact pulse P2 is input, the count of the time counter is 1, and the counting time Ti and M are compared at 111 with the small reference time Tδ.
That is, if it is determined to be normal, a single ding/u consonant is generated, and "1" is added to the number of times N. Iru-kata, Ti
If it is determined that <Ts, the competition is determined to be over, the number of times played and the score up to that point are displayed, and at the same time, a completion notification sound is emitted, and the game returns to its initial state.

When it is determined that Ti≧T8 and the number of times is counted as described above, the score is subsequently calculated. This is performed using the above-mentioned equation (1), and the integration is further performed. This is shown in the following equation.

The score Y thus calculated is displayed on the second display section (2), and the number of impacts N is displayed on the first display section (2). After such processing, the contents of the time counter θ6) are reset and the process returns to the step of starting time counting again. Such processing is repeatedly executed according to the input of the impact pulse, and the number of times is added and the score is calculated.

Effects of the Invention The present invention incorporates an external force detection means, a transmitting means, and a power supply means in the ball itself, and separately provides a receiver for receiving transmission No. 4 from the transmitting means, and uses this receiver to measure the number of times the ball is kicked. Since it counts and also displays a score indicating the difficulty of the exercise technique, the player does not have to count the number of times he or she exercises by himself and can concentrate on the competition. Furthermore, according to the present invention, since the height of the kicked ball is converted into a score and displayed, it becomes possible to objectively evaluate the luck and b technique of a car player. It can be used as a liver cancer treatment. Furthermore, lifting competitions or kemari-like competitions using balls according to the present invention do not require a large playing area and can be played by just one person, so they can be enjoyed as easy sports. Furthermore, since the electrical circuit parts built into the ball are kept to the minimum necessary, these critical conditions do not significantly change the amount of electricity of the ball as a whole, and there is almost no difference in shape and weight from a normal ball. The ball can be realized.

[Brief explanation of drawings]

Fig. 1 is an electric circuit block diagram of a ball motion detection device according to an embodiment of the present invention, Fig. 2 is a cross-sectional view of the same side ball, Fig. 3 is a cross-sectional view of main parts, and Fig. 41 is a receiver display and 5 is a front view where the operation panel is located, FIG. 5 is an electric circuit diagram on the ball side, FIG. 6 is a signal waveform diagram, FIG. 7 is an electric circuit diagram on the receiver side, and FIG. 8 is a program flow chart. FIG. 9 is a curve diagram showing the relationship between score Y and time. (1)...Ball side electric circuit part (3)...Receiver side m air circuit part (2)...Ball (4)...Pressure sensor (5) (
(0... Amplification circuit (6)... Transmission circuit (7)...
・Transmission antenna (8)...Reception antenna (9)...
・Reception circuit c edition...Arithmetic control circuit θ...indicator (13...buzzer 00...circuit unit (if
)...Rubber tube α...Circuit section θ side...Battery (A)...Battery container (A)...Rubber tube (F)...First display section (2) ...Second display section Q)...
・Number of times counter 00...Electronic sound generation circuit (/4s・
... Time Counter Patent Applicant Molten Rubber Industries Co., Ltd. Representative Fumiya Tami Aki No. 10 2 Days V3 Group σT 9 Days Procedural Amendment (Voluntary) Commissioner of the Japan Patent Office 1 Case Indication 1988 Patent Application No. 019055 No. 2, Name of the invention: Pole motion detection device 3. Person making the correction: Patent applicant 4: Object of shaft stop: light'flll p, r ''+1°815) bi(j 2
(lij'l-1' I O,0,5fsmall J toj:
+ , :, c: +, I O, 25 sand” Zhan #Ri +
I do.・Mei 1■ Book, page 16, G line f1 [(1,057!+
, i and Chiruno, I' (1, 25'J:!+
J and 7 mountains +l ′: 3 go - 1, light + ur
! :17j Gog i', lI line l-l ()'nF'
/" -1 (37) (=15>"Toa,Otsu's, 1
)' entry 1 (37)'' and lii! , ill two. Akiraro Book 17jrj 5t1111 Time Force l:ノ〉'
Evening (,1ra)" is replaced with "Cenoto Rimu no 111.
11ff(517)3 and 1ti11. '! I'l flll,':'re l9j'
Bow it i! Row l', l l ((1,0,'+,L)
:) j,':, fi. Runo・wo l ((1, 2) j, and 1 Yamashi 1 Go,. ・In the drawing, No. 9) ヅ1 Ryobetsu 1jE (j,) Street) 1j
;I'll stop. j゛ノ1

Claims (1)

[Scope of Claims] (1) A detection means for detecting an external force applied to the ball, a transmission means for transmitting a detection signal from the detection means to the outside of the ball as a wireless signal, and a battery for driving the oscillation means and the detection means. An exercise ball having a built-in power supply means; a calculating means for receiving a detection signal transmitted from the transmitting means and obtaining a numerical information signal related to an external force applied to the ball based on the received signal; and a display means for receiving the numerical information signal by the means and displaying the numerical information, and displaying information such as the number of times the ball is hit outward by the receiver. (2) In the above-mentioned exercise ball, the above-mentioned detection means transmitting means and battery power supply means are integrally formed to constitute a circuit unit, and the circuit unit is connected to the opposite surface of the air injection valve of the above-mentioned ball. (3) In the exercise ball, the ball motion detection device (3) according to claim i, wherein the weight of the valve and the weight of the circuit unit are set to be substantially equal. The ball movement detecting device (4) according to claim 1 or 2, wherein the detecting means comprises a pressure sensor that detects the air pressure in the rubber tube that is the innermost layer of the ball. Claim 1, wherein in the receiver, the calculation means includes a number counter that counts the number of times an external force is applied to the ball, and the contents of the number counter are displayed on the display means. Ball motion detection device (5) In the receiver, the calculation means includes a time counter that counts the time interval between two external forces applied to the ball, and the score information calculated based on the contents of the time counter is (6) In the receiving board, the calculating means counts the number of times an external force is applied to the ball. and a time counter for counting the time periods of two external forces applied to the ball, and the contents of the number counter and the time counter are each converted into points and displayed on the display means. Ball movement detection device (7) according to claim 1 In the receiver, the calculation means includes means for multiplying the contents of the time counter by a different coefficient depending on the magnitude of the contents of the time counter. (8) In the receiver, the ball motion detection device (8) is characterized in that the display means displays the numerical value multiplied by the coefficient as a score. When the contents of the time counter exceed the minimum time set based on the bounce of the ball and the maximum time set based on the flight time of the ball, the total @operation of the number counter and the simultaneous counter is executed. The ball movement detection device (9) according to claim 6, characterized in that the oscillation means includes a prohibition means for inhibiting the movement of the ball, and the antenna includes a transmitting antenna, and the antenna is configured to detect the lr of the night air constituting the ball. ) The ball movement f (1.