CN102441266A - Electronic induction type teaching basketball hoop - Google Patents

Abstract

The invention relates to the technical field of basketball hoops, in particular to an electronic induction type teaching basketball hoop, and provides the electronic induction type teaching basketball hoop which can accurately judge scoring through a photoelectric induction technology and intuitively display a judgment result through an acousto-optic combined mode so as to improve the accuracy rate of a judger and the aesthetic appreciation temperament and interest. The basketball hoop mainly comprises two groups of photoelectric proximity switches (SS1 and SS2), an integrated control chip (IC1) and some peripheral electronic elements. When a ball is pitched into the basketball hoop, the pitching can be detected by the proximity switches, action is produced by the proximity switches, the working conditions of the integrated control chip are met, a buzzer emits a sound, and a light emitting matrix (LED2) is lighted up at the same time, so that a goal is shown; otherwise, acoustic-optic display is not available, so that no goal is shown.

Description

Electric induction type teaching Basket ball basket

Technical field

The present invention relates to the Basket ball basket technical field, particularly electric induction type teaching Basket ball basket.

Background technology

Basketball is one of modal sports, and basketball teaching also is one of basic content of courses of kind at different levels school.In the basketball teaching of reality, we often see that the basketry net of Basket ball basket has come off or the situation of heavy wear.Because the basketry net is a kind of device of damaging because of repeated friction of being very easy to, so in order to cut down expenses, many schools are carrying out basketball teaching or the basketry net is not installed when generally not being very important Basketball Match.The main effect of basketry net is exactly that basketball received the speed of the low whereabouts of certain resistance drop through the basketry net when basketball was scored, so that referee and spectators judge whether to score more easily.Owing to there is not a basketry net, be difficult to clear accurate judgement sometimes to whether knocking down ball, particularly when playing, if this can't to see the situation of whether scoring clearly more obvious in the situation that does not have the basketry net, inaccurate situation often appears judging.The present invention can accurately judge whether to score through the optoelectronic induction technology and the mode that combines through acousto-optic shows judged result intuitively.

Summary of the invention

The present invention provides a kind of electric induction type teaching Basket ball basket, can accurately judge whether to score and the mode that combines through acousto-optic shows judged result intuitively through the optoelectronic induction technology, improves judge's accuracy rate and ornamental interest.

The present invention mainly is made up of near switch (SS1 and SS2), an integrated control chip (IC1) and some peripheral electron elements two groups of photoelectricity.When ball is knocked down; Basketball must get into the detection range of SS1; SS1 has detected object near also producing action (NPN NO type) like this; The positive 15V high level of its signal output part (X2) output, 7 pin of IC1 have+15 volts of inputs like this, and have at the anode of luminous matrix (LED2)+15V imports and delay was maintained at this state 0.6 second.Have only when basketball to get into the SS1 detection range, promptly the part of ball has got into basketry at least, and the back ball occurs in this situation and also must keep this trend to pass through basketry more than 1/2nd until ball; And after leaving basketry, detected by SS2 (PNP ON) in 0.6 second, SS2 produces action, and 4 pin of IC1 have-the 15v input; The LED2 negative terminal has-the 15V input simultaneously; Have only the condition of work of IC1 when this situation occurs to satisfy, buzzer (B) sounding luminous matrix (LED2) is simultaneously lighted, and shows and scores; Do not show otherwise there is acousto-optic, do not show and score.

Description of drawings

Fig. 1 is the circuit diagram of the embodiment of the invention.

The specific embodiment

Below in conjunction with accompanying drawing and specific embodiment the present invention is done further detailed description.

As shown in Figure 1, the present invention mainly is made up of near switch (SS1 and SS2), an integrated control chip (IC1) and some peripheral electron elements two groups of photoelectricity.

SS1 be diffuse reflection type photoelectricity near switch, requiring selection work voltage is direct current 10-30V, NPN NO type, detects distance at 50CM (adjustable type), requires it to have delay function simultaneously, adjusting range is in 0.5-3 second, sluggish scope 1-15%.That select for use in this example is PTL-BM2SK-D, SS2 be diffuse reflection type photoelectricity near switch, requiring selection work voltage is direct current 10-30V, PNP NO type, what detect that distance selects for use in this example of 50CM (adjustable type) is the M30-DC3 type.The positive power source terminal (X1) of optoelectronic switch (SS1) connects the anode of 15V dc source (P1) through switch (K1) and current-limiting resistance (R1); The negative power end (X3) of optoelectronic switch (SS1) connects the negative terminal of 15V dc source (P2), and 7 pin that signal output part (SS1) (X2) connects integrated compute chip (IC1) are the positive supply feeder ear through resistance (R3) sending and receiving light matrix (LED2) simultaneously; The positive power source terminal (Y1) of optoelectronic switch (SS2) connects the anode of 15V dc source (P1) through switch (K1) and current-limiting resistance (R1); The negative power end (Y3) of optoelectronic switch (SS2) connects the negative terminal of 15V dc source (P2), and signal output part (SS2) (Y2) connects the negative supply feeder ear of the 4 pin while sending and receiving light matrix (LED2) of integrated compute chip (IC1); Integrated compute chip (IC1) 2,3 pin are signal input part, are used to import sound signal in this example, and 6 pin of IC1 connect the signal input part (1) of buzzer (B), 2 pin ground connection of buzzer for driving signal output part in this example; P1, P2 are the 15V dc source in this example, and its centre-point earth constitutes one group+15V and adds-the 15V power supply; RP1, RP2 are used to regulate audible frequency; D1, D2 are used to IC1 stable input voltage are provided; R2 and LED1 constitute the indication of power work state.

During installation, SS1 is installed on basketry and the iron plate that backboard is connected, (tight obedient iron plate is with screw and clamping plate fixation; It detects mouth towards basketry; It is concordant with the interior basket of basketry limit to detect the mouth front end, detects a mouthful front end and does not exceed the basketry inner edge, also withdraws too much; Keep as far as possible with the basketry inner edge on same plane) the detection distance of SS1 is adjusted into 24CM (because of the diameter of standard basketry is 45CM; Need only basketball entering basketry so the diameter of standard basketball is 24.7CM, then the distance one with sense switch (SS1) fixes in the 23CM, and it is 0.6 second that adjustment is held time near switch (SS1) time-delay; Backboard lower edge under SS2 installation and the basketry; The detection distance of shaft centers that guarantees this detector axle center and SS1 is between 12.5-15CM; This sense switch is that M12 is cylindrical; Can be directly embedded in the backboard, it detects mouthful front end and backboard in same plane or indentation slightly (surpassing 5MM), and it is detected apart from being adjusted into about 35CM.

Operation principle: as shown in Figure 1, when basketball was knocked down, ball must get into the detection range of SS1; SS1 has detected object near also producing action (NPN NO type) like this, and its signal output part (X2) is exported positive 15V high level, and 7 pin of IC1 have+15 volts of inputs like this; And the anode at luminous matrix (LED2) has+the 15V input; But 4 pin of IC1 do not have-15 volts of inputs when SS2 moves, the 6 pin non-output signals of IC1, and buzzer (B) is not worked; Because at this moment the negative terminal of LED2 is in vacant state, LED2 can not light simultaneously.When ball gets in the surveyed area of SS2; SS2 detects the concurrent lively work of object (PNP NO type) its signal output part (Y2) output low level, and 4 pin of IC1 have-15 volts of inputs like this, and has at the negative terminal of LED2 luminous matrix-the 15V input; But when SS1 does not move or surpassed SS1 action delay time range (being set at 0.6 second); 7 pin of IC1 do not have+15 volts of inputs, the 6 pin non-output signals of IC1, and buzzer (B) is not worked; Because at this moment the anode of LED2 is in vacant state, LED2 can not light simultaneously.Get into the SS1 detection range so have only when ball, promptly the part of ball has got into basketry at least, and this situation occur the back basketball also must keep this trend until ball more than 1/2nd through basketry (because of the distance of SS2 and SS1 is about 12.5CM; Just the distance of SS2 and basketry is about 12.5CM, and standard basketball radius is smaller or equal to 12CM, so can in 0.6 second, being detected by SS1 and SS2 during through basketry more than 1/2nd of ball); And after leaving basketry, detected by SS2 (PNP ON) in 0.6 second (in theory with practical situation in, ball from the contact basketry to from basketry through and time of coming out from the bottom in 0.5 second, and because the vertical range of SS2 and basketry is about 12.5CM; The distance of its optical axis and basketry farthest is less than 22CM, and standard basketball diameter approximates 23CM, so so long as the ball that falls from basketry inside be bound to detected by SS2; And because the barrier effect of basketry, all by the detected ball of SS1 if not the surveyed area that can not get into SS2 by motion downwards in the basketry), have only when this situation occurs; SS1 at first produces action and deferred action 0.6 second, and 7 pin of IC1 have+15V input and keeping 0.6 second, the LED2 anode has+the 15V input; And from basketry, fall and detected by SS2 at 0.6 second endosphere; SS2 produces action, and 4 pin of IC1 have-the 15V input, and the LED2 negative terminal has-the 15V input; The condition of work of IC1 satisfies in this case; IC1 work drives buzzer sounding while luminous matrix (LED2) and lights, and shows and scores; Do not show otherwise there is acousto-optic, do not show and score.

The work of getting final product (when using this basketry the basketry net can not be installed) is lighted in closed power switch (K1) power supply indication (LED1) during use.

In the present embodiment; SS1 selects for use diffuse reflection type photoelectricity near switch, and requiring operating voltage is direct current 10-30V, and NPN NO type, detection distance are at 50CM (adjustable type); Require it to have delay function simultaneously; The time-delay adjusting range is in 0.5-2 second, sluggish scope 1-15%, and what select for use in this example is the PTL-BM2SK-D type; SS2 selects for use diffuse reflection type photoelectricity near switch, and requiring operating voltage is direct current 10-30V, PNP NO type, and what detect apart from this example of 50CM (adjustable type), select for use is the M30-DC3 type; IC1 is a F007 general-purpose operation amplifier, and buzzer (B) is the 1000HZ buzzer, and all resistance are selected fixed carbon resister for use; Wherein R1=100 Ω, R2=47K, R3=27K, R4=390 Ω, R5=1K, R6=25K; RP1=RP2 is the small-sized potentiometer of 0-50K, and D1, D2 are the 2CW11 voltage-stabiliser tube, and C1, C2 are the 22n ceramic condenser; P1, P2 are the 15V dc source, can use two groups of 15V batteries or synthetic with dry cell batteries.LED1 is a green LED, and the luminous matrix that LED2 is made up of 10 red high brightness LEDs can be lined up " √ " shape with this 10 luminous tube during arrangement.

Claims (1)

1. electric induction type teaching Basket ball basket; Mainly form near switch (SS1, SS2), an integrated control chip (IC1) and some peripheral electron elements by two groups of photoelectricity; It is characterized in that the positive power source terminal (X1) of optoelectronic switch (SS1) connects the anode of dc source (P1) through switch (K1) and current-limiting resistance (R1); The negative power end (X3) of optoelectronic switch (SS1) connects the negative terminal of dc source (P2); (SS1) 7 pin that signal output part (X2) connects integrated compute chip (IC1) are the positive supply feeder ear through resistance (R3) sending and receiving light matrix (LED2) simultaneously; The positive power source terminal (Y1) of optoelectronic switch (SS2) connects the anode of dc source (P1) through switch (K1) and current-limiting resistance (R1); The negative power end (Y3) of optoelectronic switch (SS2) connects the negative terminal of dc source (P2), and signal output part (SS2) (Y2) connects the negative supply feeder ear of the 4 pin while sending and receiving light matrix (LED2) of integrated compute chip (IC1), and 6 pin of integrated compute chip (IC1) connect the signal input part of buzzer (B).

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