JP2012125269A - Foul detector - Google Patents

Abstract

PROBLEM TO BE SOLVED: To reliably detect a ball that has been hit to a foul region near a foul pole and display that the ball is a foul.SOLUTION: That a ball has been hit to the foul region near the foul pole 7 is detected by means of a beam sensor 2 that emits and receives a plurality of optical beams that is installed in the foul region adjacent to the foul pole 7 set up at a site that a foul line of a baseball field is in contact with a fence 24, and that the ball is a foul is displayed on a confirmation display device 4. Thereby, it is correctly and easily checked whether the ball that has been hit near the foul pole 7 is fair or foul.

Description

  The present invention relates to a foul detection device for determining whether a hit ball is a foul or a fair in a baseball field.

  Patent Document 1 discloses an object passage measurement device that measures passage information of an object such as a baseball ball using an optical sensor in order to detect a flying state of the object such as a baseball ball. This object passage measuring device scans a predetermined measurement region by scanning a light beam emitted from a light emitting unit with an optical scanning unit, and an optical scanning unit with a reflecting unit arranged to face the optical scanning unit at a predetermined distance. The scanning light scanned from is retroreflected, the light beam reflected by this reflecting part is received by the light receiving part provided in the vicinity of the light scanning part, the light receiving pattern is input, and the light reception by the object in the input light receiving pattern is started. Based on the point, the end point, the maximum cutoff position, and the cutoff duration, the passage time of the object that has passed through the measurement region is detected, and the passage information of the object that has passed through the measurement region is detected.

  Further, Patent Document 2 discloses a radar measurement method for continuously and accurately detecting the position of a baseball ball or the like during play. In this radar measurement method, a plurality of radar signals are transmitted to the three-dimensional region from the first, second and third spaced antenna devices, a feedback signal from the target is received, and the transmission signal and the feedback signal are compared. Determining the phase of the feedback signal for each of the plurality of transmission signals to obtain an ambiguous representation of the first, second, and third ranges of the target corresponding to the first, second, and third antenna devices, respectively, This ambiguity in the first, second, and third ranges is removed using the Chinese Remainder Theorem, which is a modular arithmetic, and targets corresponding to the first, second, and third antenna devices, respectively. A range with less ambiguity in the first, second and third ranges is obtained. The target three-dimensional coordinates are calculated by using the first, second and third ranges with less ambiguity and the coordinates of the first, second and third antenna devices.

  Although the object passage measuring device shown in Patent Document 1 and the radar measurement method shown in Patent Document 2 can detect the passing time and position of a hit ball in a baseball field, a foul line passing through the first base and the third base from the main base is a fence. The referee makes a visual decision as to whether the hit ball that flew near the foul pole that is in contact with the ball is fair or foul. For this reason, there is a possibility that misjudgment may occur, and it is desired to be able to accurately detect whether the hit ball that flew near the foul pole is a home run or a foul.

  The present invention has been made in response to this demand, and an object of the present invention is to provide a foul detection device that can reliably detect and display a hit ball that flies to a foul region near a foul pole. .

  The foul detection device according to the present invention includes a beam sensor, a control device, and a confirmation display device. The beam sensor includes a light emitting device and a light receiving device, and the light emitting device is adjacent to the foul pole in a foul region of a baseball field. And a plurality of light emitting portions provided on the ground along the fence and emitting a light beam, and the light receiving device is provided at a position facing the light emitting device at an uppermost portion of the foul pole, and the light emitting device A plurality of light-receiving units that receive light beams emitted from the plurality of light-emitting units and output light reception signals, and the light-emitting unit and the light-receiving unit have an interval between the light beams emitted from the light-emitting units. The control device inputs light reception signals from the plurality of light receiving units and emits the light from the light emitting unit from any one or two of the plurality of light receiving units. When a light receiving signal indicating that the light beam incident on the light receiving portion is blocked by the passage of the baseball is input, the confirmation display device displays that the hit ball is a foul for a predetermined time. .

  Another foul detection device of the present invention includes a beam sensor, a control device, and a confirmation display device. The beam sensor includes a light emitting device and a light receiving device. The light emitting device includes a foul line of a baseball field and a fence. Provided along the fence on the ground between the pole area including the contact point and the foul area adjacent to the pole area, and has a plurality of light emitting portions that emit light beams for foul detection at positions corresponding to the foul area. And a position corresponding to the pole region has a plurality of light emitting portions for emitting a beam beam for pole detection in a range corresponding to the diameter of the foul pole, and the light receiving device is a distance corresponding to the total length of the foul pole. The light-emitting device is provided at a position far away from the ground so as to face the light-emitting device, and receives light beams emitted from a plurality of light-emitting portions of the light-emitting device and outputs a light-receiving signal. A plurality of light receiving portions for detecting fouling and a plurality of light receiving portions for detecting poles, wherein the light emitting portion and the light receiving portion are arranged such that the interval between each light beam emitted from the light emitting portion is smaller than the diameter of the baseball. The control device inputs light reception signals from the plurality of light receiving units for detecting the foul and the plurality of light receiving units for detecting the pole, and selects one of the plurality of light receiving units for detecting the foul. Alternatively, when a light reception signal indicating that the light beam for foul detection is blocked by the passage of a baseball is input from two, the confirmation display device displays that the hit ball is a foul for a predetermined time, and the pole detection When a light receiving signal indicating that the light beam for pole detection has been blocked by the passage of the baseball ball is input from any one or two of the plurality of light receiving portions for use in the confirmation display device It is displayed for a predetermined time that the ball is fair, and a light receiving signal indicating that the light beam for foul detection is blocked by the passage of the baseball is input from the light receiving unit for foul detection and the pole detection is performed. When a light receiving signal indicating that the light beam for pole detection is blocked by the passage of a baseball is input from a light receiving unit, the confirmation display device displays that the hit ball is fair for a predetermined time. .

  According to the present invention, a ball sensor that projects and receives a plurality of light beams provided in a foul area adjacent to a foul pole installed at a point where a foul line of a baseball field touches a fence hits a foul area in the vicinity of the foul pole. By detecting that the hit ball is foul on the confirmation display device, it is possible to accurately and easily check whether the hit ball flew near the foul pole is fair or foul. .

  In addition, instead of the foul pole, a beam sensor for projecting and receiving a plurality of light beams is provided in the pole area including the point where the foul line of the baseball stadium contacts the fence, and this beam sensor detects that the hit ball flew to the pole area. By confirming that the hit ball is fair on the confirmation display device, it is possible to accurately and easily check whether the hit ball flew along the foul line without using the foul pole is a foul or a fair. Can do.

  Furthermore, since it is not necessary to install a foul pole in the baseball field, there is no object that obstructs the sight of the audience, and the audience can easily see the state of the baseball field.

It is a block diagram of the foul detection apparatus of this invention. It is a schematic diagram which shows the structure of a baseball field. It is a block diagram which shows the structure of a foul detection apparatus. It is a block diagram which shows the structure of the other foul detection apparatus of this invention.

  FIG. 1 is a block diagram of a foul detection device according to the present invention. As shown in the figure, the foul detection device 1 includes a beam sensor 2, a control device 3, and a confirmation display device 4. The beam sensor 2 has a light emitting device 5 and a light receiving device 6, and is provided on the foul area side along the foul pole 7 of the baseball field.

  An outline of a baseball field where the beam sensor 2 of the foul detection device 1 is installed is shown in FIG. As shown in FIG. 2, the foul pole 7 is provided at a point where the foul line 23 passing from the main fence 21 to the first fence 22 contacts the fence 24 and a foul line 26 passing from the main fence 21 to the third fence 25 contacts the fence 24. , Provided to determine whether the hit ball hit by the batter box 27 is fair or foul. The outside of the first and third bases from the foul pole 7, that is, the outer side between the foul line 23 and the foul line 25 is used as a foul region.

  The light emitting device 5 of the beam sensor 2 is provided on the ground along the fence 24 adjacent to the foul pole 7 in the foul region, and the light receiving device 6 is provided at a position facing the light emitting device 5 at the top of the foul pole 7. ing. As shown in the block diagram of FIG. 3, the light emitting device 5 has a plurality of, for example, five light emitting units 8 a to 8 e that emit a light beam, and the light receiving device 6 has a light beam emitted from the light emitting units 8 a to 8 e. Has five light receiving portions 9a to 9e. The light emitting units 8a to 8e and the light receiving units 9a to 9e are arranged so that the interval between the light beams emitted from the light emitting units 8a to 8e is smaller than the diameter of the baseball.

  As shown in the block diagram of FIG. 3, the control device 3 includes a control unit 10, an operation unit 11, a light emission control unit 12, a foul region passage detection unit 13, and an output unit 14. When the operation unit 11 is operated, the control unit 10 drives and controls the entire control device 3. The light emission control unit 12 receives a drive signal from the control unit 10 and drives and controls the light emitting units 8a to 8e to continuously emit light beams from the light emitting units 8a to 8e of the light emitting device 5. The foul region passage detection unit 13 includes, for example, an exclusive logic circuit, and receives light from the light receiving units 9a to 9e when, for example, a high level signal “1” is input from the light receiving units 9a to 9e of the light receiving device 6 as a light reception signal. When any one or two of the signals becomes the low level signal “0”, a foul area passing signal indicating that the baseball has passed the foul area is output to the control unit 10. When the control unit 10 inputs a foul region passage signal from the foul region passage detection unit 13, the confirmation display device 4 is turned on for a predetermined time via the output unit 14 to display that the hit ball is a foul.

  Processing for determining whether or not a hit ball hit by the batter with this foul detection device 1 and flew near the foul pole 7 is a foul will be described.

  When the operation unit 11 is operated, the control unit 10 of the control device 3 drives the light emission control unit 12 to continuously emit light beams from the light emitting units 8 a to 8 e of the light emitting device 5. The light beams emitted from the light emitting units 8 a to 8 e are incident on the light receiving units 9 a to 9 e of the light receiving device 6, and a high level signal “1” is received from the light receiving units 9 a to 9 e as a light receiving signal. 13 is input. The foul area passage detection unit 13 controls a signal indicating that the hit ball hit by the batter does not pass through the foul area when the high level signal “1” is inputted as the light receiving signal from all the light receiving parts 9a to 9e. To the unit 10.

  When the hit ball hit by the batter in this state flies near the foul pole 7 and passes between the light emitting parts 8a to 8e and the light receiving parts 9a to 9e, which are detection areas of the beam sensor 2, the light is emitted from the light emitting parts 8a to 8e. Then, any of the light beams received by the light receiving portions 9a to 9e is blocked by the passing baseball. When the light beam is blocked by the baseball, the light emitters 8a to 8e and the light receivers 9a to 9e are arranged so that the distance between the light beams is smaller than the diameter of the baseball, so that the light beams are emitted from the light emitters 8a to 8e. Any one or two of the processed light beams are blocked. For example, when the light beams emitted from the light emitting unit 8a and the light emitting unit 8b are blocked, the light receiving unit 9a and the light receiving unit 9e that receive the light beams emitted from the light emitting unit 8a and the light emitting unit 8b receive the light from the foul region passage detection unit 13. A low level signal “0” is input as a signal. When the foul region passage detection unit 13 inputs the low level signal “0” as the light receiving signal from the light receiving unit 8 a and the light receiving unit 9 e in the state where the high level signal “1” is input as the light receiving signal from the light receiving units 9 a to 9 e, A foul area passing signal indicating that the hit ball has passed the foul area is output to the control unit 10. When the control unit 10 receives a foul region passage signal from the foul region passage detection unit 13, the control display unit 10 lights the confirmation display device 4 via the output unit 14 to display that the hit ball is a foul for a predetermined time.

  Thus, since it is detected that the hit ball flew to the foul area near the foul pole 7 and the confirmation display device 4 displays that the hit ball is a foul, the hit ball flew near the foul pole 7 is fair. Or fouling can be confirmed accurately and easily.

  In the above description, the case where five light beams are used as the beam sensor 2 has been described. However, by increasing the number of light beams, that is, the number of light emitting units 8 and light receiving units 9, a foul detection region of the beam sensor 2 can be arbitrarily set. Can be enlarged.

  In the above description, the case where the foul detection beam sensor 2 is provided in the vicinity of the foul pole 7 has been described. However, the foul pole 7 itself may be constituted by a beam sensor. FIG. 4 shows a configuration of a foul detection device 1a in which the foul pole 7 itself is configured by a beam sensor.

  The light emitting device 5a of the beam sensor 2a of the foul detection device 1a has a plurality of, for example, five light emitting portions 8a to 8e for foul detection, and has a range corresponding to the diameter 140 mm of the foul pole 7 for foul pole detection. A plurality of, for example, four light emitting units 15a to 15d for emitting a light beam having a width smaller than the diameter of the baseball is provided. The light receiving device 6a includes five light receiving portions 9a to 9e that receive the light beams emitted from the light emitting portions 8a to 8e, and four light receiving portions 16a to 16d that receive the light beams emitted from the light emitting portions 15a to 15d. . The confirmation display device 4a includes a foul display portion 19a indicating that the hit ball is a foul and a fair display portion 19b indicating that the hit ball is fair.

  The control device 3a includes a pole region passage detection unit 17 and a region selection unit 18 in addition to the control unit 10a, the operation unit 11, the light emission control unit 12, the foul region passage detection unit 13, and the output unit 14. The pole area passage detection unit 17 includes, for example, an exclusive logic circuit, and outputs from the light receiving units 16a to 16d when, for example, a high level signal “1” is input as a light receiving signal from the light receiving units 15a to 15d of the light receiving device 6a. When any one or two of the received light signals becomes the low level signal “0”, a pole area passing signal indicating that the baseball has passed the pole area corresponding to the diameter of the foul pole is output to the control unit 10a. . When the area selection unit 18 does not receive a pole area passage signal indicating that it has passed the foul pole area from the pole area passage detection unit 17, the area selection unit 18 inputs a foul area passage signal from the foul area passage detection unit 13. A foul area selection signal is output from the pole area passage detection unit 17 when the foul area selection signal is output to the control unit 10a and the foul area passage signal indicating that the foul area has passed is not input from the foul area passage detection unit 13. When input, the input pole area passing signal is output to the control unit 10a, and when the foul area passing signal and the pole area passing signal are input simultaneously, the pole area passing signal is preferentially selected and output to the control unit 10a. When the control unit 10a inputs the foul area passing signal, the foul display unit 19a of the confirmation display device 4a is turned on for a predetermined time via the output unit 14 to display that the hit ball is a foul, and when the pole area passing signal is input, the control unit 10a outputs The fair display unit 19b of the confirmation display device 4a is turned on for a predetermined time via the unit 14 to display that the hit ball is fair.

  A process for determining whether the hit ball hit by the batter with the foul detection device 1a and flew in the vicinity of the foul pole 7 is a foul or a fair will be described.

  When the operation unit 11 is operated, the control unit 10a of the control device 3a drives the light emission control unit 12 to detect five light emitting units 8a to 8e for foul detection of the light emitting device 5a and four light emission for foul pole detection. The light beam is continuously emitted from the portions 15a to 15d. The light beams emitted from the light emitting units 8a to 8e and the light emitting units 15a to 15d are incident on the light receiving units 9a to 9e and the light receiving units 16a to 16d of the light receiving device 6a. 1 ”is input to the foul region passage detection unit 13 of the control device 3a, and the high level signal“ 1 ”is input to the pole region passage detection unit 17 of the control device 3a from the light reception units 16a to 16d. When the high level signal “1” is input as the light reception signal from all the light receiving units 9a to 9e, the foul region passage detection unit 13 outputs a signal indicating that the hit ball hit by the batter does not pass through the foul region. When the high-level signal “1” is input as the light receiving signal from all the light receiving parts 16a to 16d, the hit ball hit by the batter passes through the pole area. A signal indicating that there is no signal is output to the region selector 18.

  When the hit ball hit by the batter in this state passes between the light emitting portions 8a to 8e and the light receiving portions 9a to 9e, one of the light beams emitted from the light emitting portions 8a to 8e and received by the light receiving portions 9a to 9e. Is blocked by a passing baseball. When the light beam is blocked by the baseball, the light emitters 8a to 8e and the light receivers 9a to 9e are arranged so that the distance between the light beams is smaller than the diameter of the baseball. Any one or two of the emitted light beams are blocked, and any one or two of the received light signals input from the light receiving units 9a to 9e to the foul region passage detecting unit 13 becomes the low level signal “0”. . When the foul area passage detection unit 13 inputs a high level signal “1” as a light reception signal from the light reception units 9 a to 9 e, and inputs a low level signal “0” as a light reception signal from any of the light reception units 9 a to 9 e. The foul area passing signal indicating that the hit ball has passed the foul area is output to the area selecting section 18. When the area selection unit 18 receives a signal indicating that the hit ball does not pass the pole area from the pole area passage detection unit 17 and inputs a foul area passage signal from the foul area passage detection unit 13, the area selection unit 18 passes the foul area. The signal is output to the control unit 10a. When the foul area passage signal is input from the area selection section 18, the control section 10a lights the foul display section 19a of the confirmation display device 4a through the output section 14 for a predetermined time to display that the hit ball is a foul.

  Further, when the hit ball hit by the batter passes between the light emitting units 15a to 15d and the light receiving units 16a to 16d, any of the light beams emitted from the light emitting units 15a to 15d and received by the light receiving units 16a to 16d Blocked by a passing baseball. When the light beam is blocked by the baseball, the light emitters 15a to 15d and the light receivers 16a to 16d are arranged so that the interval between the light beams is smaller than the diameter of the baseball, so that the light emitters 15a to 15d Any one or two of the emitted light beams are blocked, and any one or two of the received light signals input from the light receiving units 16a to 16d to the pole region passage detection unit 17 becomes the low level signal “0”. . When the pole region passage detection unit 17 receives a high level signal “1” as a light reception signal from the light reception units 16 a to 16 d and inputs a low level signal “0” as a light reception signal from any of the light reception units 16 a to 16 d. Then, a pole area passing signal indicating that the hit ball has passed the pole area is output to the area selecting unit 18. When the area selection unit 18 receives a signal indicating that the hit ball has not passed the foul area from the foul area passage detection unit 13 and receives a pole area passage signal from the pole area passage detection unit 17, the area selection unit 18 passes the pole area. The signal is output to the control unit 10a. When the control section 10a receives the pole area passage signal from the area selection section 18, the fair display section 19b of the confirmation display device 4a is turned on for a predetermined time via the output section 14 to display that the hit ball is fair.

  The hit ball hit by the batter is a light beam between the light emitting units 8a to 8e for detecting the foul and the light receiving units 9a to 9e, and a light beam between the light emitting units 15a to 15d for detecting the pole and the light receiving units 16a to 16d. The light beam emitted from the light emitting portion 8a for foul detection provided adjacent to the boundary for foul detection and pole detection through the boundary region between the fouling and the light detection portion 9a is blocked and used for foul detection. When the light beam emitted to the light receiving portion 16d from the light detecting portion 15d for pole detection provided at the pole detection boundary is blocked, the light receiving signal input to the foul region passage detecting portion 13 from the light receiving portion 9a is at a low level. The signal becomes “0”, and a foul area passing signal indicating that the hit ball has passed the foul area is input from the foul area passing detecting section 13 to the area selecting section 18 and the light receiving section 16d receives the po Receiving signal input to the region passage detection section 17 becomes a low level signal "0", hitting the pole region passage detection section 17 in the region selection unit 18 inputs the pole region transmission signal indicating that it has passed through the pole region. When the area selection unit 18 receives the foul area passage signal from the foul area passage detection unit 13 and also receives the pole area passage signal from the pole area passage detection unit 17, the area selection unit 18 preferentially selects and outputs the pole area passage signal to the control unit 10a. When the control section 10a receives the pole area passage signal, the fair display section 19b of the confirmation display device 4a is turned on for a predetermined time via the output section 14 to display that the hit ball is fair.

  In this way, it is possible to accurately and easily confirm whether the hit ball flew along the foul line 23 and the foul line 25 is a foul or a fair without using the foul pole 7.

  Further, since it is not necessary to install the foul pole 7 in the baseball field, there is no object that obstructs the sight of the audience, and the spectator can easily visually recognize the state of the baseball field.

1, 1a; foul detection device, 2, 2a; beam sensor, 3, 3a; control device,
4, 4a; confirmation display device, 5, 5a; light emitting device, 6, 6a; light receiving device,
7; foul pole, 8; light emitting unit, 9; light receiving unit, 10, 10a; control unit,
11; operation unit, 12; light emission control unit, 13; foul region passage detection unit, 14; output unit,
15; Light-emitting part, 16; Light-receiving part, 17; Pole area passage detection part, 18; Area selection part.

JP 2003-148910 A Japanese Patent Publication No. 6-510603

Claims (2)

A beam sensor, a control device and a confirmation display device;
The beam sensor includes a light emitting device and a light receiving device, and the light emitting device is provided on the ground along a fence adjacent to a foul pole in a foul region of a baseball field, and includes a plurality of light emitting units that emit light beams. A plurality of light receiving devices provided at a position facing the light emitting device at an uppermost portion of the foul pole, each receiving a light beam emitted from a plurality of light emitting portions of the light emitting device and outputting a light receiving signal; The light emitting unit and the light receiving unit are arranged so that the interval between the light beams emitted from the light emitting unit is smaller than the diameter of the baseball.
The control device receives light reception signals from the plurality of light receiving units, and a light beam emitted from the light emitting unit and incident on the light receiving unit from any one or two of the plurality of light receiving units. A fouling detection device for displaying, for a predetermined time, that the hit ball is a foul on the confirmation display device when a light receiving signal indicating that the baseball has been blocked is input. A beam sensor, a control device and a confirmation display device;
The beam sensor includes a light emitting device and a light receiving device, and the light emitting device is located along a fence on a ground between a pole area including a point where a foul line of a baseball field contacts the fence and a foul area adjacent to the pole area. A plurality of light emitting portions for emitting a light beam for foul detection at a position corresponding to the foul area, and for detecting a pole in a range corresponding to a diameter of the foul pole at a position corresponding to the pole area; A plurality of light emitting units for emitting the light beam, and the light receiving device is provided opposite to the light emitting device at a position away from the ground by a distance corresponding to the total length of the foul pole, Each of the light emitting units has a plurality of light receiving units for detecting fouling and a plurality of light receiving units for detecting poles, each of which receives a light beam emitted from the light emitting unit and outputs a light receiving signal. Receiving portion, the spacing of the light beams emitted from the light emitting portion is arranged to be smaller than the diameter of the baseball,
The control device inputs light reception signals from the plurality of light receiving units for detecting the foul and the plurality of light receiving units for detecting the pole, and from any one or two of the plurality of light receiving units for detecting the foul. When a light receiving signal indicating that the light beam for foul detection is blocked by the passage of a baseball is input, the confirmation display device displays that the hit ball is a foul for a predetermined time, and a plurality of pole detection When a light reception signal indicating that the light beam for pole detection is blocked by the passage of a baseball ball is input from any one or two of the light receiving portions, it is determined that the hit ball is fair on the confirmation display device. A light reception signal indicating that the light beam for foul detection has been blocked by the passage of a baseball is input from the light receiving unit for foul detection, When a light receiving signal indicating that the light beam for pole detection is blocked by the passage of the baseball is input from the light receiving unit for detection, the confirmation display device displays that the hit ball is fair for a predetermined time. Feature foul detection device.

Images