阅读说明：本技术 一种柔力球网式项目裁判辅助系统 (A kind of soft-ball net formula project judge auxiliary system ) 是由 陈芳芳 刘云东 梅学艳 于 2019-09-03 设计创作，主要内容包括：发明提出一种柔力球网式项目裁判辅助系统,包括专用球拍,拍摄设备和计算机。本发明能够准确拍摄选手背后动作情况,解决了裁判视线被遮挡的问题。压力传感器可以准确无误的判断出手腕的抖动；侧旋或平旋时持拍臂最后猛的发力；手臂和手腕的挑动,使球未沿切线抛出等犯规行为。(Invention proposes a kind of soft-ball net formula project judge auxiliary system, including special racket, capture apparatus and computer.The present invention can accurately shoot player behind action situation, solve the problems, such as that judge's sight is blocked.Pressure sensor can accurately judge the shake of wrist；It is held when sidespin or flat rotation and claps that arm is last violent to be had an effect；Arm and wrist are provoked, and ball is made not dish out tangentially equal misconducts.)

1. a kind of soft-ball net formula project judges auxiliary system, which is characterized in that including special racket, capture apparatus and calculating Machine；

Flexible face is installed, the mounting groove of frame clamping elasticity face is equipped with pressure sensing on the frame of the special racket The elastic force on face is converted electric signal by device, pressure sensor；Wireless transmitter is equipped in the handle of special racket, it is wireless to send out Emitter is connect by signal wire with pressure sensor, and wireless transmitter is connected with time module；It is additionally provided in handle and is passed to pressure The battery of sensor, wireless transmitter and time module power supply；When wireless transmitter is by the electric signal of pressure sensor and transmission Between information real-time radio be transferred to computer

The capture apparatus includes that at least two cameras, two cameras is symmetrically disposed in the rear of opposing teams' half-court； Video camera is by the image taken and shooting time information real-time transmission to computer；

The electric signal of pressure sensor is depicted as pressure-time curve figure according to temporal information by computer；When further according to shooting Between every frame image for taking video camera it is corresponding with pressure-time curve figure；Soft-ball is observed from racket by image reproducing The situation of change of pressure when being thrown off judges player with the presence or absence of foul.

2. a kind of soft-ball net formula project as described in claim 1 judges auxiliary system, which is characterized in that the pressure sensing Device at least there are three, be evenly distributed on frame.

3. a kind of soft-ball net formula project as described in claim 1 judges auxiliary system, which is characterized in that the video camera has Six, left side, right side and each one of the rear of each half-court.

4. a kind of soft-ball net formula project as described in claim 1 judges auxiliary system, which is characterized in that the video camera is High-speed motion picture camera.

Technical field

The present invention relates to sports equipment field, specifically a kind of auxiliary soft-ball net formula project referee carries out the soft of penalty Part equipment.

Background technique

2017,19 Mass sports projects are included in the National Games for the first time in the 13rd National Games that Tianjin is held Match rule, soft-ball is just wherein.Inventor is engaged in soft-ball net formula referee work four Nian Youyu, judge's group during judging Member can be consistent for the judgement opinion of most of technical movements of net formula soft-ball, only for a technical movements --- There is the phenomenon that " seeing for seeing just is blown, invisible just to let off ", disobey certainly for this in the judgement very headache that drawing of arc is interrupted The judgement saying of example, there is also benevolence persons to see the case where benevolence, sage are shown in intelligence.And this also exactly causes referee and sportsman contradictory Principal element.

" drawing of arc " in net formula project is the core technology of soft-ball competitive sport, and complete drawing of arc is dynamic Work by meet ball, draw ball, three parts of toss form.It meets ball: when ball flies here, stretching bat against ball, moved toward one another with ball. Draw ball: swinging the bat along direction of bowl is carried out, when the speed of the speed of bat and ball is close, ball is taken advantage of a situation and cuts racket and introduces toss circle Arc.Toss: ball is introduced into toss circular arc, and when racket slows down to a certain extent, i.e., the linear velocity of racket is less than the line that ball moves Speed, ball fly out because of inertia along drawn circular arc tangential line direction.

During " drawing of arc ", it is desirable that the motion profile of ball is coherent, round and smooth, not inflection point a camber line.Simultaneously It is required that ball tangentially to be dished out by the Whole power of body, and require to accelerate in first half term.During the games, as long as occurring It pauses, holding or unexpected turned back are judged to " drawing interruption ".

During actually judging, often there is body part (such as wrist, arm during doing drawing of arc in sportsman Deng) have an effect ball dished out, such as: the shake of wrist；It is held when sidespin or flat rotation and claps that arm is last violent to be had an effect；Arm and wrist It provokes, ball is made not dish out tangentially, be then judged to " drawing interruption ".And if these when speed is relatively slow, being visually can It is come out with accurate judgement, sportsman also has no objection.However in big event, for example, the National Games, international soft-ball contest, It in the of this sort race of national soft-ball finals, judges by accident, fail to judge unavoidably:

(1) sportsman's level is higher, and the speed of rotation is very fast, is visually sometimes difficult to accurate judgement.

(2) the location of referee, sportsman and spectators are different, and angle is different, and the result that three judges is sometimes There is deviation.

(3) cut out the gesture for permitting no. drawing and interrupting plus secondary in the rules of contest, thus for back to plate umpire make as Ball etc. acts after the shoulder of oxter ball and face plate umpire, is also difficult to judge sometimes.

The penalty each time of the match of key number of competition, referee all decides on the field of sportsman " destiny ", therefore in order to It is difficult to solve the problems, such as to judge the technology, and also to which the phenomenon that avoiding the occurrence of erroneous judgement, failing to judge, solves to generate because of angle difference Understanding on offset issue, be also preferably reserve judge's penalty, safeguard sportsman itself equity, keep referee more fair Just more accurate carry out penalty, improves the public credibility of referee, so that soft-ball race is standardized, standard, orderly progress Go down, it is necessary to develop the software equipment that a reserve judge is judged when participating in the cintest.

Summary of the invention

To solve the above problems, the present invention proposes a kind of soft-ball net formula project judge auxiliary system.

The present invention adopts the following technical scheme:

A kind of soft-ball net formula project judge auxiliary system, including special racket, capture apparatus and computer；

Flexible face is installed, the mounting groove of frame clamping elasticity face is equipped with pressure sensing on the frame of the special racket The elastic force on face is converted electric signal by device, pressure sensor；Wireless transmitter is equipped in the handle of special racket, it is wireless to send out Emitter is connect by signal wire with pressure sensor, and wireless transmitter is connected with time module；It is additionally provided in handle and is passed to pressure The battery of sensor, wireless transmitter and time module power supply；When wireless transmitter is by the electric signal of pressure sensor and transmission Between information real-time radio be transferred to computer；

The capture apparatus includes that at least two cameras, two cameras is symmetrically disposed in the rear of opposing teams' half-court； Video camera is by the image taken and shooting time information real-time transmission to computer；

The electric signal of pressure sensor is depicted as pressure-time curve figure according to temporal information by computer；When further according to shooting Between every frame image for taking video camera it is corresponding with pressure-time curve figure；Soft-ball is observed from racket by image reproducing The situation of change of pressure when being thrown off judges player with the presence or absence of foul.

Further, the pressure sensor at least there are three, be evenly distributed on frame.

Further, the video camera has six, left side, right side and each one of the rear of each half-court.

Further, the video camera is high-speed motion picture camera.

By adopting the above technical scheme compared with prior art, the present invention beneficial effect is:

The present invention can accurately shoot player behind action situation, solve the problems, such as that judge's sight is blocked.Pressure sensor It can accurately judge the shake of wrist；It is held when sidespin or flat rotation and claps that arm is last violent to be had an effect；Arm and wrist are chosen It is dynamic, so that ball is not dished out tangentially and waits misconducts.

Detailed description of the invention

Fig. 1 special racket structural schematic diagram

Two video camera distribution schematic diagrams of Fig. 2

Six video camera distribution schematic diagrams of Fig. 3.

Specific embodiment

The present invention is described in further detail with reference to the accompanying drawings and examples.

A kind of soft-ball net formula project judge auxiliary system, which is characterized in that including special racket, capture apparatus and calculating Machine.

As shown in Figure 1, installing flexible face 1, the connection type of soft-ball frame and face on the frame 2 of special racket It is to have a circle card slot on the inside of frame, face surrounding edge is convex block, and convex block is stuck in card slot.In the present invention, 2 clamping bullet of frame Property face 1 mounting groove on the inside of be equipped with pressure sensor 3, when pressure of the elastic face by ball, face convex block is on card slot Apply pressure, this pressure is converted electric signal by pressure sensor 3.

Wireless transmitter 6 is equipped in the handle of special racket, wireless transmitter 6 is connected by signal wire and pressure sensor 3 It connects, is integrated with time module on wireless transmitter 6；The battery 5 of power supply is additionally provided in handle, supplying cell connects each by electric wire Module.The electric signal of pressure sensor and transmission time information real-time radio are transferred to computer by wireless transmitter.

If Fig. 2 capture apparatus includes that at least two cameras, two cameras is symmetrically disposed in opposing teams' half-court Rear.Preferably, it is shot as shown in figure 3, adding 4 video cameras and being acted for two sides.Video camera by the image taken and Shooting time information real-time transmission is to computer.The most handy high-speed motion picture camera of video camera captures more movement details.

The electric signal of pressure sensor is depicted as pressure-time curve figure according to temporal information by computer；Further according to bat It is corresponding with pressure-time curve figure to take the photograph every frame image that the time takes video camera.

It carries out in the movement of drawing of arc, the motion profile of ball is coherent, round and smooth, not inflection point a camber line, last ball It tangentially dishes out, pressure-time curve figure is consecutive variations at this time, more smooth curve.Such as there is the shake of wrist；Sidespin Or it is held when flat rotation and claps that arm is last violent to be had an effect；Arm and provoking for wrist wait misconducts, necessarily cause face pressure prominent The case where so substantially increasing.

When carrying out auxiliary penalty, the situation of change of pressure when soft-ball is thrown off from racket is observed by image reproducing, When doubtful unnecessary roughness occurs, the case where significantling change if there is pressure-time curve, the player criminal of presence can be assert Rule.

In order to which pressure data is accurate, several sensors should be installed inside frame more, the readings of comprehensive several sensors into The whole judgement of row.Be employed herein 3, also it is mountable more, but also to consider the weight of structure, racked swing etc. because Element.

The foregoing is merely preferably feasible embodiment of the invention, not thereby limiting the scope of the invention, It is all to change with equivalent structure made by description of the invention and accompanying drawing content, it is intended to be included within the scope of the present invention.