CN100482299C

CN100482299C - Foul ball digital detection system in ball game

Info

Publication number: CN100482299C
Application number: CNB2005100653329A
Authority: CN
Inventors: 赵健
Original assignee: Individual
Current assignee: Individual
Priority date: 2004-10-28
Filing date: 2005-04-06
Publication date: 2009-04-29
Anticipated expiration: 2025-04-06
Also published as: CN1768885A

Abstract

The invention provides a digital detecting system of outer ball in the ball match. The invention is characterized in following comprised parts: an optical three-dimensional motion real-time tracing catching device (2); a data information processing system (3); and a digital-display acoustic caution light-emitting device (4). When the ball (1) moves in the ground (5), its spatial position is real-time caught by the optical three-dimensional motion real-time tracing catching device (2) which can calculate the three-dimensional coordinate (X, Y, Z) of the centre of sphere and graphic information. And when the ball is out at one position, the three-dimensional coordinate and graphic information of ball can be processed and compared by data information processing system (3) to send out alarm via the digital-display acoustic caution light-emitting device (4) instantly, and display the coordinate of out ball.

Description

The digital detection system of foul ball in the ball game

1. technical field the present invention relates in a kind of ball game digital detection system out-of-bounds and (can be used for tennis, shuttlecock, vollyball, football, baseball, hockey, ball game fields such as table tennis). whether the ball that the use of this foul ball detection system can make judge or spectators judge the ball game more timely moment more accurately on numeral is fallen out-of-bounds actually, and whether the ball when comprising service falls within out-of-bounds.

2. background technology is present, in sports tournament, the referee mainly relies in its vision penalty out-of-bounds, but inaccurate sometimes to the penalty of some ball, especially Jie Waiqiu penalty, often lead to controversy, even the sportsman's mood that has is uncontrollable goes to attack the judge, the Seize bad shot is clapped or is stood down. and video recording slow motion playback and to handle be not allow to be used as the penalty standard at present, up to the present, truly this foul ball detection system not also in the ball game.

3. summary of the invention the invention provides a kind of advanced person's foul ball digital detection system in order to overcome the problem of top described foul ball penalty.The present invention is by optical 3-dimensional motion real-time tracking capture system (2), processing data information system (3), numeral shows and sound caution light-emitting caution equipment compositions such as (4). the present invention neither influences the sportsman and normally competes, athletic health thousand is disturbed the testing result that also not too influences native system, and the instant alarm of landing at official ball (1), and demonstrate out-of-bounds coordinate digital, greatly improve the science and the fairness of foul ball penalty in the ball game, reformed this field helpless situation for many years to greatest extent.

4. the present invention will be further described below in conjunction with accompanying drawing for description of drawings. and accompanying drawing is a side view of the present invention.Earlier the numbering among the figure is carried out as directed: 1. official ball, 2. optical 3-dimensional motion real-time tracking capture device, 3. processing data information system, 4. numeral shows and sound caution light-emitting caution equipment, 5. arena. see figure, in the arena (5) is official ball (1), what lay outside the arena (5) is optical 3-dimensional motion real-time tracking capture device (2), processing data information system (3), numeral shows and sound is warned light-emitting caution equipment (4). when official ball (1) during in the place spatial movement of having calibrated, the real-time locus of ball (1) and graphical information are in real time constantly by optical 3-dimensional motion real-time tracking capture device (2) trace trap, and through after it handles timely, the three-dimensional coordinate (X of the centre of sphere that obtains, Y, Z) (attention is the coordinate of the central point of ball after treatment) and graphical information transfer to processing data information system (3) if carry out integrated treatment. and the official ball (1) in the motion lands, its three-dimensional coordinate (X, Y, Z) and graphical information through the processing data information system (3) mathematics or graphics process after, and relatively judge through it, whether decision warns the coordinate digital that light-emitting caution equipment (4) is reported to the police in real time and demonstrated official ball (1) out-of-bounds position by numeral demonstration and sound.

5. specific embodiment the present invention implements in the following way: at first, to calibrate and competition area (5) area of space carries out strict and meticulous pre-games preparations such as space frame position calibration each parameter of optical 3-dimensional motion real-time tracking capture device (2), the a plurality of technical staff's cooperations of these needs of work are carried out. and optical 3-dimensional motion real-time tracking capture device (2) preferably adopts high-speed highly sensitive trace trap equipment, it is installed in the space outside the court, that must not interfere with play normally carries out, numeral shows and sound caution light-emitting caution equipment (4) is installed in the judge or spectators see that easily the place of hearing gets final product, processing data information system (3) places numeral to show and sound caution light-emitting caution equipment (4) next door. and optical 3-dimensional motion real-time tracking capture device (2) can adopt infrared tracking (infrared tracking needs ball is carried out even spray treatment of infra-red material or otherwise treated), also can adopt other optical tracking.After starting the clock, optical 3-dimensional motion real-time tracking capture device (2) is to official ball (1) trace trap incessantly, calculate its sphere centre coordinate and graphical information in real time, and with the continuous three-dimensional coordinate sequence (X that changes of the centre of sphere point of ball (1), Y, Z) and graphical information promptly be transferred to processing data information system (3). when ball (1) lands, moment change (becoming spheroid or spheroid) will take place in its size and shape, Z value in its centre of sphere three-dimensional coordinate is certain lowest minimum value (this value size is relevant with the deformation size that produces than ball in play), on the competition field, produce a circle or oval-shaped contact simultaneously, usually naked eyes are difficult to see clearly. and processing data information system (3) will be according to the coordinate of the centre of sphere, the moment radius size etc. of ball is carried out mathematical computations and graphics process etc. and is relatively judged, (note: contact point is the point of a circle or ellipse or irregular cycle to calculate the shape size of this touch point, be that certain area size is arranged), the contact distance that especially can calculate on this circle or the ellipse is the X of round dot with the court central point, the coordinate of the point that Y two reference axis are nearest, and relatively (out-of-bounds range criterion value depends on the length and width size of competition area to carry out mathematics with out-of-bounds range size standard value, may need approval) through relevant ball international tournament tissue, judge ball and whether pressed the sideline, whether final decision is spread out of out-of-bounds caution sound or is sent caution light by numeral demonstration and sound caution light-emitting caution equipment (4), with the some distance that demonstrates on this circle or the ellipse be the X of round dot with the court central point, the coordinate digital of the point that Y two reference axis are nearest. above-mentioned this processing data information mode is applicable to the foul ball penalty rule of line ball.And (whether whole out-of-bounds promptly watch a ball game in another penalty rule out-of-bounds, the ball's dead center when relatively landing and the mutual alignment in sideline), when landing moment with ball (1), digital information processing system (3) will be according to the sphere centre coordinate (X that is formed by optical 3-dimensional motion real-time tracking capture device (2) trace trap and processing, Y, Z) carry out simple mathematical relatively, this moment, Z was certain lowest minimum value, relatively can determine the output of whether reporting to the police to X and Y and out-of-bounds range size standard value. in actual applications, the space of considering, ball arena (5) is too big, can be divided into several zones to competition area (5) and follow the tracks of, for example near the several regional correlation matches the sideline are carried out trace trap with ball (1).

Claims

1. out-of-bounds digital detection system in the ball game, the use of this foul ball detection system can make judge or spectators judge the whether out-of-bounds of a ball easier moment more accurately on the numeral, it is characterized in that: native system is by optical 3-dimensional motion real-time tracking capture device, the processing data information system, numeral shows and sound caution light-emitting caution equipment is formed, in the match, when official ball during in the place spatial movement of having calibrated, optical 3-dimensional motion real-time tracking capture device is transferred to the processing data information system with the graphical information of the ball that captures and the three-dimensional coordinate information of the centre of sphere, the processing data information system is through mathematical computations, judge after the graphics process processing mode and relatively, whether decision reports to the police, when official ball lands, the change of size and shape takes place in club in the moment of landing, what ball stayed in competition area simultaneously is the point of a circle or ellipse or irregular cycle, this moment the centre of sphere three-dimensional coordinate (X, Y, Z) the Z value in is certain lowest minimum value, the processing data information system will be according to the coordinate of the centre of sphere, the size of ball is carried out mathematical computations and graphics process and is relatively judged, can calculate the size shape of circle or oval contact point, the point distance that can calculate on this circle or the ellipse is the X of initial point with the court central point, the coordinate of the point that Y two reference axis are nearest, and compare with out-of-bounds range size standard value, judge ball and whether pressed the sideline, whether be in out-of-bounds, whether whether final decision spread out of the caution sound of no play or sent caution light by numeral demonstration and the decision of sound caution light-emitting caution equipment, is the X of initial point with demonstrating the some distance that presses on formed circle in place or the ellipse because of ball with the court central point, the coordinate digital of the point that Y two reference axis are nearest, above-mentioned processing data information mode is applicable to the out-of-bounds penalty of line ball; And in another penalty rule out-of-bounds, whether whole out-of-bounds promptly watch a ball game, centre of sphere when relatively ball lands and the mutual alignment in sideline relation, when ball lands moment, digital information processing system will be according to by optical 3-dimensional motion real-time tracking capture device trace trap and handle sphere centre coordinate (X, the Y that forms, Z) carry out simple mathematical relatively, this moment, Z was certain lowest minimum value, the X of this moment and Y and the comparison of out-of-bounds range size standard value, determined whether to report to the police output.

2. the digital detection system of foul ball in the ball game according to claim 1, it is characterized in that: its optical 3-dimensional motion real-time tracking capture device is used for carrying out the movement locus that real-time tracking is caught official ball, the graphical information of ball and centre of sphere three-dimensional coordinate, and carry out real time data processing, comprise the trace trap that when ball lands whether its centre of sphere Z coordinate figure is reached lowest minimum value.

3. the digital detection system of foul ball in the ball game according to claim 1, it is characterized in that: its processing data information system is used for to also handling the sphere centre coordinate (X that forms by optical 3-dimensional motion real-time tracking capture device trace trap, Y, Z) and graphical information handle and judge, compare with out-of-bounds range size standard value, determine whether to report to the police output.

4. the digital detection system of foul ball in the ball game according to claim 1 is characterized in that: its numeral shows and sound caution light-emitting caution equipment is used for spreading out of the caution sound of no play or sending caution light, and demonstrates the coordinate digital of no play.