JPH09294837A - Distance predictor - Google Patents

Abstract

(57) Abstract: An entire system is a complicated and expensive device such as a Doppler radar device, and there is no land of a certain size such as one using a beam slot. It was impossible to install the device, and it was impossible to purchase it personally and use it for golf practice. A PS that is a low-priced and compact position detection device
D (position sensitive diode) and the light source consisting of a halogen lamp, the speed of the golf ball launched by the golfer and the golf ball launched by the golfer.
It is a device that predicts the flight distance of a golf ball by detecting the angle of the golf ball.

Description

Detailed Description of the Invention

[0001]

TECHNICAL FIELD OF THE INVENTION The golf ball practiced in a limited space, such as a golf driving range or a home garden, is used to calculate the flight distance. In a driving range where a golfer hits and falls, the flight distance of a ball launched by a golfer is predicted and displayed on the display of the flight distance prediction device.

[0002]

2. Description of the Related Art Conventionally, a Doppler radar device has been known as a device for measuring the flight distance of a moving target (for example, a hit golf ball). This Doppler
The data device comprises an antenna, a transmitter, a receiver unit, a transmitter, a data processing unit built in the receiver unit, a device housing containing a control element and a power cable. This Doppler radar device is used to measure the velocity of the ball, and by selecting this velocity and the type of golf club, the expected flight distance of the ball from the trajectory unique to each club is predicted. A method of predicting is known. In addition, a golf ball hit by a golfer between two beam slots arranged at two points A and B, which are distant from each other, is located between the beam slots arranged at points A and B. The time difference when passing through the vehicle and the distance between the beam slots disposed at the points A and B are related to each other.
The speed of the cable is measured, and by an extremely short range radar oscillator,
There is known a method of predicting the flight distance of a ball by measuring the direction of the ball with an oscillated radar.

[0003]

However, in the above-mentioned conventional method, the entire system is a complicated and expensive device such as a Doppler radar device, and a certain amount such as a beam slot device is used. If there was no land of this size, the equipment could not be installed and it was impossible to purchase it personally and use it for golf practice.

[0004]

SUMMARY OF THE INVENTION The present invention has been made in view of the conventional problems, and a light source for illuminating a moving body and a lens mechanism for transmitting incident light of light from the moving body illuminated by the light source. And a plurality of position-sensitive diodes that receive incident light transmitted through the lens mechanism, a control circuit including a current-voltage converter, an analog-digital converter, a CPU, a memory, and the like, and a moving body including a display. In the flight distance predicting device, the position-sensitive diode is irradiated with incident light of light transmitted through the lens mechanism, and the position-sensitive diode is irradiated.
The incident light applied to the position-generating electrode generates charge in the position-sensitive diode, which is position data corresponding to the position of the position-sensitive diode, and the electrode provided in the position-sensitive diode. Is output as a photocurrent to the control circuit, converted into a voltage by a current-voltage converter, converted into a digital signal by an analog-digital converter, and incident light from the digital signal is converted into a position-sensitive diode by the CPU. The position of the incident light is calculated, the distance between the plurality of position sensitive diodes and the angle with the ground are calculated by the CPU, and the incident light is incident on each of the plurality of position sensitive diodes. For a certain period of time, and between multiple position sensitive diodes. A real image determined by the distance of incident light, the magnification of the lens mechanism, the distance between the lens mechanism and the light receiving plate provided in the housing, the distance moved by the moving body, and the image formation on the light receiving plate. The velocity of the moving body is calculated by the CPU based on the correlation of the distance traveled by the moving body, and the moving body is calculated by the calculated angle and velocity and the general trajectory data of the moving body stored in the memory. The present invention proposes a flight distance prediction device that predicts a flight distance of a moving body that predicts a flight distance of

[0005]

BEST MODE FOR CARRYING OUT THE INVENTION The present apparatus is a low-cost, small-sized position detecting device PSD (position sensitive diode).
And a halogen light source as a light source, and a device for predicting a flight distance of a golf ball by detecting the velocity of the golf ball launched by the golfer and the angle of the launched golf ball. Is.

[0006]

According to the present invention, when a golf ball hit by a golfer passes in front of a lens portion provided in the flight distance measuring device, the light emitted by a light emitting body using a halogen lamp as a light source is emitted by the golf ball. When the golf ball hits the golf ball, the trajectory of the golf ball, which is the incident light from the golf ball, is provided at two separate locations in the flight distance measuring device through the lens.
The position data of the golf ball, which occurs in each of the SD and is displayed on one PSD, and the PS provided on the other
The flight distance of the golf ball is calculated by calculating the position data of the golf ball shown in D by the control unit.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The details of the present invention will be described below with reference to the accompanying drawings. FIG. 1 is a perspective view showing the main body of the flight distance prediction apparatus, and reference numeral 1 indicates the entire flight distance prediction apparatus. Reference numeral 2 is a golf ball, which is not shown in the drawings.
Was struck using a club. Reference numeral 3 is an arrow indicating the direction in which the golf ball is hit. In this embodiment, as shown in the perspective view of FIG. 1, the golf ball 2 is hit from the left to the right.

The reference numeral 4 is provided with a halogen lamp 4 which is a light source for irradiating the golf ball 2. The halogen lamp 4 has an output of 100 W using an AC 100 V external power source (not shown) as a power source, and is housed inside a housing 5 made of sheet metal. The housing 5 made of sheet metal is attached to the upper part of the flight distance prediction device 1. Reference numeral 6 is a reflecting cylinder, which is provided to prevent the light source emitted from the halogen lamp 4 from being dispersed. Reference numeral 7 is an infrared transmission filter, which is provided to irradiate only the infrared rays from the light source emitted from the halogen lamp 4 onto the golf ball 2. In this embodiment, the housing containing the halogen lamp 4 is arranged above the flight distance predicting apparatus 1, but the arrangement location is particularly limited as long as the golf ball 2 can be irradiated with light. Not a thing.

Reference numeral 8 is a casing of the flight distance predicting apparatus 1, which is made of sheet metal or resin. Reference numeral 9 is
A light receiving plate that supports a PSD, which will be described later, and is made of sheet metal or resin, like the other parts of the housing described above. The PSDs 10 and 11 are bonded to both ends of the light receiving plate 9 with an adhesive. Reference numeral 12 is a golf ball 2
The lens mechanism is a combination of a convex lens and a concave lens for transmitting the incident light of the light radiated to the PSDs 10 and 11. The lens mechanism 12 may be an interchangeable lens used in a single-lens reflex camera. Next, above PSD1
0 and 11 will be explained as shown in FIG.
D10 and 11 are light-sensitive position sensors that utilize the surface resistance of the photodiode, and are made of P on the planar silicon.
Layers, an N layer on the back surface, and an I layer in the middle. The reflection of the light applied to the golf ball 2 is reflected by the PSDs 10 and 1 through the lens mechanism 12 that is a combination of a convex lens and a concave lens.
When incident on 1, the electric charge is generated at the incident position in proportion to the incident light, and as a photocurrent, the electrodes 13, 14, 15, 16 are charged.
Is output by

Electrodes are attached to the upper and lower ends of each of the PSDs 10 and 11, respectively.
If the light that has entered the surface of 11 enters below the midpoint of the PSD 10, for example, the lower electrode 13 of the electrodes 13 and 15 provided at the upper and lower ends is lower than the upper end electrode 15. It outputs a high-value photocurrent, and the upper electrode 15
Emits a low value of photocurrent. This photocurrent is output to the control circuit 17, and I provided in the control circuit 17
A / V converter 18 converts the voltage into a voltage, and the A / D converter 19 converts the voltage into a digital signal.
The incident light of the golf ball 2 is PSD1 by the PU20.
The position of 0 or 11 at which the light beam is incident is calculated.

Further, a position 21 where the reflection of the light applied to the golf ball 2 is incident on the PSD 10, a position 22 where it is incident on the PSD 11, and a predetermined PSD 10 and PS
Due to the distance L from D11, position 21 of the incident light incident on PSD10 and position 2 of the incident light incident on PSD11
The CPU 20 calculates the distance X of 2 and the angle a with the ground. In addition, an interval between the time when the incident light is incident on the position 21 and the time when the incident light is incident on the position 22 is
The position 21 of the incident light incident on the PSD 10 and the PSD 11
Distance between the positions 22 of the incident light entering the lens, the lens mechanism 1
2 and a real image determined by the distance between the lens mechanism 12 and the light receiving plate 9 which is a part of the housing and the distance between the flight distance predicting apparatus 1 and the golf ball 2, and the ball 2 actually flies. The speed of the ball is calculated by the CPU 2 from the correlation between the distance and the distance traveled in the image formation on the light receiving plate 9 which is a part of the housing.
Calculated by 0.

The CPU 13 provided in the control circuit 17 is
Calculated angle of golf ball 2, speed, and memory 25
General ballistic data for golf ball 2 stored in
The golf ball projected by a club (not shown) of a golfer (not shown) on the display 24 electrically connected to the control circuit 17 by predicting the flight distance of the golf ball 2 by the player. The flight distance of 2 is displayed.

[0013]

As described above, according to the present invention, PS
Use D to measure the angle and speed of the golf ball 2,
Since the flight distance is calculated based on the trajectory of the golf ball stored in the memory 14 in advance, it is a relatively small device even when practicing golf in a narrow driving range or a home garden. No need to worry about the place, you can easily know the flight distance of the golf ball.

[Brief description of drawings]

FIG. 1 is a perspective view of an embodiment.

FIG. 2 is a sectional view of the embodiment.

FIG. 3 is an explanatory diagram of reflected light

FIG. 4 is an explanatory diagram of PSD

FIG. 5 is a block diagram.

[Explanation of symbols]

 1 Flying Distance Prediction Device 2 Golf Ball 3 Arrow Flying Ball 4 Halogen Lamp 5 Light Source Case 6 Reflector 7 Infrared Transmission Filter-8 Case of Flight Distance Prediction Device 9 Part of Case 10 PSD 11 PSD 12 Lens mechanism 13 Electrode 14 Electrode 15 Electrode 16 Electrode 17 Control circuit 18 I / V converter 19 A / D converter 20 CPU 21 Position where reflected light is incident 22 Position where reflected light is incident 23 PSD10 and PSD11 Distance between 24 displays 25 memory

Claims (1)

[Claims] 1. A light source for irradiating a moving body, a lens mechanism for transmitting incident light of light from the moving body irradiated by the light source, and a plurality of position sensitive diodes for receiving the incident light transmitted through the lens mechanism. And a control circuit composed of a current-voltage converter, an analog-digital converter, a CPU, a memory, etc., and a moving distance predicting device for a moving body, which is transmitted through the lens mechanism. The incident light from the position sensitive diode
The incident light applied to the position-sensitive diode causes the position-sensitive diode to generate an electric charge, which is position data corresponding to the position of the incident position-sensitive diode. As a photocurrent from the electrode provided in the sensitive diode, it is output to the control circuit, converted into a voltage by a current-voltage converter, further converted into a digital signal by an analog-digital converter, and by the CPU. The position where incident light is incident on the position-sensitive diode is calculated from the digital signal, the distance between the plurality of position-sensitive diodes and the angle with the ground are calculated by the CPU, and each of the plurality of positions is provided. There are multiple intervals at the time when the incident light enters the position sensitive diode. Position Sensitive Diode - Distance light incident between de, and the magnification of the lens mechanism,
By the correlation between the lens mechanism and the real image determined by the distance between the light receiving plate provided in the housing, the distance traveled by the moving body, and the distance traveled by the moving body on the image formation on the light receiving plate. The flying distance of the moving body is predicted by calculating the speed of the moving body by the CPU and using the calculated angle and speed and the general trajectory data of the moving body stored in the memory. Distance prediction device.