CN2582688Y - Timing and name list recording device for track and field events - Google Patents
Timing and name list recording device for track and field events Download PDFInfo
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- CN2582688Y CN2582688Y CN 02279497 CN02279497U CN2582688Y CN 2582688 Y CN2582688 Y CN 2582688Y CN 02279497 CN02279497 CN 02279497 CN 02279497 U CN02279497 U CN 02279497U CN 2582688 Y CN2582688 Y CN 2582688Y
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Abstract
The utility model discloses a timing device with a high performance-price ratio for track and field middle and short-distance race, which is characterized in that eight sets of heat release electric sensors at the upper part of a terminal point are used for testing characteristic signals of postures of an athlete's breasting the tape truncus part, and each path athlete's timing score and rank ordering are confirmed through the treatment and the revision of a software of a single-chip microcomputer. The utility model has the advantages that use is convenient, timing precision is high, athlete's score and rank can be displayed or printed in real time, and the utility model can be used for replacing a manual stopwatch completely to be used for timing in sport athletics or physical training occasions.
Description
Technical field
The utility model belongs to the athletic sports appliance technical field, relates in particular to a kind of track and field race timing device of signing.
Background technology
As everyone knows, the track and field race chronoscope name device of being made up of high-speed motion picture camera and blocking Infrared Detectors etc. comprises the starting pistol radio transmitter, receives issue an order signal wireless receiving circuit, endpoint detector that the starting pistol radio transmitter transmits.This device can only show the first place athletes ' performance in real time, all the other athletes ' performances need to give differentiation by the playback high-speed motion picture camera, whole differentiation process needs half a minute consuming time, and owing to cost an arm and a leg so far and to be adopted by each motion club of factories and miness office of universities an middle schools, and still rest on the manual time-keeping stage.
The utility model content
The utility model is exactly to provide a kind of track and field race timing device of signing at the problems referred to above, its accurately timing, differentiate the athletic games results of each runway in 400 meters more exactly, and cost is lower, easy to install, is suitable for the chronoscope name of general track and field race and training.
The technical scheme that the utility model provides is: a kind of track and field race timing device of signing, comprise by the starting pistol radio transmitter, receive the signal wireless receiving circuit of issuing an order that the starting pistol radio transmitter transmits, be located at the endpoint detector of runway terminal point, timing circuit, interrupt application and remove circuit and A/D conversion and single chip circuit, described endpoint detector is pyroelectric sensor and modulate circuit thereof, the issue an order output signal of signal wireless receiving circuit and the output signal of pyroelectric sensor modulate circuit and the input of timing circuit links, and constitutes the start-stop control of timing.
Above-mentioned starting pistol radio transmitter contains Electret condenser microphone, high pass amplifying circuit, starting pistol trigger, differential circuit, monostable circuit, comparator, NAND gate, audio oscillation and ultra-high frequency generator; Electret condenser microphone, high pass amplifying circuit and starting pistol trigger constitute and concern with control timing zero-time, the output of starting pistol trigger connects with the input of monostable circuit by differential circuit, the output of Electret condenser microphone is through the high pass amplifying circuit, comparator connects with the input of another monostable circuit, the output of these two monostable circuits connects with two inputs of a NAND gate respectively, the output of this NAND gate connects with the input of audio frequency oscillator, the output of audio frequency oscillator connects with the input of hyperfrequency oscillating circuit, realizes modulation and emission to high frequency carrier.
The above-mentioned signal receiving circuit of issuing an order mainly receives amplifying circuit by high-frequency modulation signal and audio decoder is formed; The signal of issuing an order that high-frequency modulation signal reception amplifying circuit will receive exports audio decoder to after amplifying processing, audio decoder output produces the control signal that picks up counting through trigger and phase inverter.
Runway terminal point of the present utility model is provided with multiple tracks pyroelectric sensor and modulate circuit, and the timing circuit correspondence is provided with multichannel independence timer; The output of pyroelectric sensor is after low pass is amplified adjustment, one the tunnel inputs to the in-phase input end of comparator, another road exports the inverting input of this comparator to through peak holding circuit, the output of comparator connects to control this timer with the input of corresponding timer, to guarantee that the timing dwell time is locked in sportsman's metastomium and breasts the tape constantly, satisfy the timing rule of track and field contest; Simultaneously the output of comparator also connects with interruption application circuit input end in A/D conversion and the single chip circuit by trigger so that send interruption application in sportsman's metastomium back of breasting the tape to single-chip microcomputer.
Above-mentioned timing circuit adopts the timing integrated chip, constitutes multichannel independence timer, respectively every road runway is carried out independent timing; The comparator output terminal signal of issuing an order in the output end signal of signal wireless receiving circuit and each runway pyroelectric sensor modulate circuit is respectively a timer start-stop control signal, they connect respectively and with two inputs of door, link with the output of door and the input of each runway timer.
The application circuit is interrupted in above-mentioned interruption application and remove circuit and the A/D change-over circuit comprises single chip circuit, frequency-halving circuit, and bus driver, decoder, latch, A/D converter is adopted guarantor's device.Interrupt applying for that circuit is input as the interrupt request singal in each road, the external interrupt pin of single-chip microcomputer is received in its output; Adopt each road pyroelectric sensor that is input as of protecting device and amplify adjusted instantaneous voltage output through low pass, its output inserts the input of A/D converter; The output of A/D converter inserts microcontroller bus through bus driver, and the operating frequency of A/D converter is supplied with behind the frequency-halving circuit frequency division by the standard signal that single-chip microcomputer provides; The single-chip microcomputer address wire inserts the address wire of decoder and A/D converter, the output of decoder cooperates the read-write control that realizes latch and A/D converter with the single-chip microcomputer corresponding control signal, the pose value when thereby the realization pyroelectric sensor cooperates the A/D change-over circuit effectively to detect sportsman's trunk impact terminal point was used for the software correction time, helped improving the accuracy of timekeeping of this device; Latch is input as the single-chip data line, and other circuit is received in its output, and each corresponding interrupt application and remove end and the clear terminal automatic clear with in time removing of realizing interrupting applying for and package unit.
The utility model also is provided with electronic display module circuit or printer, the single-chip data line inserts electronic display module circuit or printer data line through bus driver, the single-chip microcomputer address wire inserts decoder, and the output of decoder cooperates the read-write control that realizes electronic display circuit or printer with the single-chip microcomputer corresponding control signal.
Infrared energy when the utility model adopts pyroelectric sensor to detect the sportsman to break through terminal point, especially the end that utilizes means such as the difference of sportsman's head and arm infrared energy and program correction to lock timing is to break through terminal point at that moment at athletic metastomium, thereby guaranteed the accuracy of timing, differentiated 400 meters athletic games results of inner track exactly.In addition, the utility model also can be used for middle-distance race chronoscope name.The utility model is easy to install, and is cheap.
Description of drawings
Fig. 1 is an overall structure schematic diagram of the present utility model;
Fig. 2 is an electronic starting rifle internal circuit schematic diagram of the present utility model;
Fig. 3 is the signal receiving circuit schematic diagram of issuing an order of the present utility model;
Fig. 4 is a sensor modulate circuit schematic diagram of the present utility model;
Fig. 5 be timing circuit of the present utility model and with the interface microcontroller circuit theory diagrams;
Fig. 6 is interruption application of the present utility model and removes circuit and A/D change-over circuit schematic diagram;
Fig. 7 is EA----D20040AR display module of the present utility model and interface microcontroller circuit theory diagrams;
Fig. 8 is eight cover pyroelectric sensor acceptance frame structural representations of terminal point of the present utility model top.
The specific embodiment
Referring to Fig. 1, the utility model comprises: starting pistol radio transmitter 1, the signal wireless receiving circuit 2 of issuing an order, the pyroelectric sensor of being located at runway terminal point top and modulate circuit 3 thereof, timing circuit 4, A/D conversion and single-chip microcomputer 5, electronic display module circuit 6 and printer circuitry 7.
During electronic starting rifle cocking, in the starting pistol internal circuit shown in Figure 2, switch SW-PB closure, the positive pulse that produces under the differential circuit effect of C1 and R2 formation makes monostable circuit U1 output high level; After rifle rang, Electret condenser microphone MK rang the news of issuing an order and becomes the signal of telecommunication, import by Q1, and Q2, the high pass amplifying circuit that Q3 forms amplifies, and low frequency part information and low frequency environments noise are filtered.Amplified analog signal is converted to high level through a comparator and removes to trigger monostable circuit U2 output high level, two inputs of NAND gate U4 this moment are all height, be output as low, BG1 ends, the audio frequency oscillator starting of oscillation that the NE555 chip constitutes is modulated from audio signal to the BG2 ground level of its 3 pin output 5000HZ.By BG2, L1, L2, the hyperfrequency oscillating circuit that C9, C12 etc. form modulation signal by invisible antenna to space radiation.Because Electret condenser microphone circuit and starting pistol trigger constitute and relation, control timing zero-time, the disturbance and the aliasing problem in the timing stage of issuing an order have been solved effectively, and the feasible timing of issuing an order is stable, issue an order the delay time at stop after the software correction less than signa, satisfy the timing rule of track and field contest.After electronic starting rifle button rings, recover the ortho states low level after monostable circuit U1, U2 delay time respectively, U4 is output as high level, the BG1 conducting, and not starting of oscillation of audio frequency oscillator, starting pistol stops to launch modulation signal.
Among Fig. 3, the signal receiving circuit of issuing an order 2 mainly is made up of FM receiver special IC TA8164 and audio decoder LM567.The signal of issuing an order that TA8164 will receive is exported high-frequency modulation signal to LM567 after processing is amplified in inside, so frequency modulating signal equals the characteristic frequency of LM567, the 8 pin output of LM567 becomes low level by high level, the output that touches d type flip flop becomes low level by high level, again after anti-phase as the control signal that picks up counting (START=1) of timing circuit 4.Starting pistol is sent out and is connect remote control distance greater than 100 meters.
Used timer is three integrated chip 8254 (see figure 5)s in the timing circuit 4, and every inside contains three independent timers, respectively eight road runways is carried out independent timing.8254 operating frequency CLK=500KHZ, working method is 4, during 8254 pin GATE=1, allows counting under this mode; During GATE=0, forbid counting.So when having only START=1 and TNi=1, i road timer is just worked.Sportsman's trunk is broken through terminal point on the runway of i road, TNi=0, i road timer stops timing, the LF398 on i road is in hold mode, this moment, the pose of output size (pose value) when breaking through terminal point with sportsman's trunk of LF398 was different and different, and single-chip microcomputer can go to revise the timing error that pose causes of breasting the tape of sportsman on the runway of i road according to the numerical values recited of this pose value after the A/D0809 conversion; It is low that TNi=0 makes that also U12 counter-rotating among Fig. 4, IRQi=1, this signal make among Fig. 6 that U14 is output as, and sends interrupt requests to single-chip microcomputer.The interrupt request singal state (IRQ1-IRQ8) of eight road runways can be by the inquiry of single-chip microcomputer P1 mouth.Have no progeny in the single-chip microcomputer response, to note be that Na Yilu (or those several roads) breasts the tape to inquiry P1 mouth in interrupt service routine, then by the corresponding control word of U15 latch interface among Fig. 6 (model is 74LS373) output to other circuit each corresponding interrupt applying for removing end (CLR1---CLR8), remove the IRQi signal on this road (or these several roads), thereby remove the interrupt requests on this road (or these several roads).The record that single-chip microcomputer is done when interrupting main program Rigen, read in the transforming numerical of the pose value of corresponding runway count value and A/D0809 respective input, add with revise after converse the athletic race time and export electronic display module circuit 6 to or printer 7.In Fig. 6, frequency-halving circuit adopts 74LS74, and 74LS244 is a bus driver, and the decoder model adopts 74LS138.After the epicycle end of match, before carrying out the next round match, single-chip microcomputer in trend Fig. 6 the corresponding control word of U16 latch interface (model is 74LS373) output to each corresponding clear terminal of other circuit (CLR9---CLR11), behind the zero clearing START signal (making START=0), the peak value of removing each road again and being kept (makes Vi＞Vip, TNi=1), also the count value of three 8254 internal timers of zero clearing (makes CLR8254=1 simultaneously, Fig. 5 repeat circuit switch RELAY-SPST disconnects, three 8254 power failure).These preparations of being done for next round match also can be finished by pressing among Fig. 3 the RESET button.
In Fig. 7 EA----D20040AR display module and the interface microcontroller circuit, the data wire of EA----D20040AR display module links to each other with the single-chip data line through bus driver 74LS245, the single-chip microcomputer address wire inserts the address wire of decoder 74LS138, and the output of decoder cooperates realization to display module read-write control with the single-chip microcomputer corresponding control signal.
Below be some explanations about Fig. 8.Pyroelectric sensor is contained in the receiving box, and receiving box is fixed on the top of terminal point acceptance frame.Acceptance frame is made demountable structure by spear die material, and frame is high 3.40 meters, and 3.00 meters of headroom add in the left side, first road and 0.75 meter space leaving on the 8th road the right, so can not influence athletic race.During installation, be positioned at exactly directly over the finishing line, need to observe the spirit level on the upright of frame, and regulate the tightening bolt on the steel wire rope of framework both sides respectively, make frame vertical straight and do not tilt forward and back for guaranteeing receiving sensor.And the framework left and right directions need not to regulate be difficult for tilting because frame structure has guaranteed left and right directions, even and inclination is arranged slightly, the accuracy of timing is not had influence yet.There is light shield receiving box below, and has the rectangular opening of 20mm*60mm at the framework underbeam, with guarantee to receive the visual field on the ground be projected as 0.50 meter of 1.50 meters (runway is wide) * (finishing line breast the tape district).The visual field is 1.00 meters at the width of sportsman's metastomium (overhead about 1.00 meters～～1.10 meters), has both guaranteed that this road sensor received the athletic infra-red radiation in this road perfectly safely, is unlikely to receive the athletic information of contiguous runway again, sees Fig. 8.So the timing dwell time satisfies track and field contest timing rule.
Claims (7)
1. the track and field race timing device of signing, comprise the signal wireless receiving circuit of issuing an order, the endpoint detector of being located at the runway terminal point, timing circuit, the interruption application that transmits by starting pistol radio transmitter, reception starting pistol radio transmitter and remove circuit and A/D conversion and single chip circuit, it is characterized in that: described endpoint detector is pyroelectric sensor and modulate circuit thereof, the issue an order output signal of signal wireless receiving circuit and the output signal of pyroelectric sensor modulate circuit and the input of timing circuit links, and constitutes the start-stop control of timing.
2. the timing according to claim 1 device of signing, it is characterized in that: the starting pistol radio transmitter contains Electret condenser microphone, high pass amplifying circuit, starting pistol trigger, differential circuit, monostable circuit, comparator, NAND gate, audio oscillation and ultra-high frequency generator; Electret condenser microphone, high pass amplifying circuit and starting pistol trigger constitute and concern with control timing zero-time, the output of starting pistol trigger connects with the input of monostable circuit by differential circuit, the output of Electret condenser microphone is through the high pass amplifying circuit, comparator connects with the input of another monostable circuit, the output of these two monostable circuits connects with two inputs of a NAND gate respectively, the output of this NAND gate connects with the input of audio frequency oscillator, the output of audio frequency oscillator connects with the input of hyperfrequency oscillating circuit, realizes modulation and emission to high frequency carrier.
3. the timing according to claim 1 device of signing is characterised in that: the signal receiving circuit of issuing an order mainly receives amplifying circuit by high-frequency modulation signal and audio decoder is formed; The signal of issuing an order that high-frequency modulation signal reception amplifying circuit will receive exports audio decoder to after amplifying processing, audio decoder output produces the control signal that picks up counting through trigger and phase inverter.
4. according to claim 1 or the 2 or 3 described timing device of signing, it is characterized in that: the runway terminal point is provided with multiple tracks pyroelectric sensor and modulate circuit, and the timing circuit correspondence is provided with multichannel independence timer; The output of pyroelectric sensor is after low pass is amplified adjustment, one the tunnel inputs to the in-phase input end of comparator, another road exports the inverting input of this comparator to through peak holding circuit, the output of comparator and the input of corresponding timer connect to control this timer, and the output of comparator also connects with interruption application circuit input end in A/D conversion and the single chip circuit by trigger so that send interruption application in sportsman's metastomium back of breasting the tape to single-chip microcomputer simultaneously.
5. the timing according to claim 4 device of signing is characterised in that: timing circuit adopts the timing integrated chip, constitutes multichannel independence timer, respectively every road runway is carried out independent timing; The comparator output terminal signal of issuing an order in the output end signal of signal wireless receiving circuit and each runway pyroelectric sensor modulate circuit is respectively a timer start-stop control signal, they
6. according to claim 1 or the 2 or 3 described timing device of signing, be characterised in that: interrupt application and remove circuit and the A/D change-over circuit comprises single chip circuit, interrupt the application circuit, frequency-halving circuit, bus driver, decoder, latch, A/D converter is adopted guarantor's device; Interrupt applying for that circuit is input as the interrupt request singal in each road, the external interrupt pin of single-chip microcomputer is received in its output; Adopt each road pyroelectric sensor that is input as of protecting device and amplify adjusted instantaneous voltage output through low pass, its output inserts the input of A/D converter; The output of A/D converter inserts microcontroller bus through bus driver, and the operating frequency of A/D converter is supplied with behind the frequency-halving circuit frequency division by the standard signal that single-chip microcomputer provides; The single-chip microcomputer address wire inserts the address wire of decoder and A/D converter, and the output of decoder cooperates the read-write control that realizes latch and A/D converter with the single-chip microcomputer corresponding control signal; Latch is input as the single-chip data line, and other circuit is received in its output, and each corresponding interrupt application and remove end and the clear terminal automatic clear with in time removing of realizing interrupting applying for and package unit.
7. according to claim 1 or the 2 or 3 described timing device of signing, be characterised in that: be provided with electronic display module circuit or printer, the single-chip data line inserts electronic display circuit or printer data line through bus driver, the single-chip microcomputer address wire inserts decoder, and the output of decoder cooperates the read-write control that realizes electronic display circuit or printer with the single-chip microcomputer corresponding control signal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02279497 CN2582688Y (en) | 2002-10-10 | 2002-10-10 | Timing and name list recording device for track and field events |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02279497 CN2582688Y (en) | 2002-10-10 | 2002-10-10 | Timing and name list recording device for track and field events |
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| Publication Number | Publication Date |
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| CN2582688Y true CN2582688Y (en) | 2003-10-29 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02279497 Expired - Fee Related CN2582688Y (en) | 2002-10-10 | 2002-10-10 | Timing and name list recording device for track and field events |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101822897A (en) * | 2010-03-04 | 2010-09-08 | 马莉芳 | Judgment induction system |
| CN102083505A (en) * | 2008-04-16 | 2011-06-01 | 耐克国际有限公司 | Athletic performance user interface for mobile device |
| CN102402801A (en) * | 2011-12-02 | 2012-04-04 | 苏州慧飞信息科技有限公司 | Timing management system |
| CN101571964B (en) * | 2008-12-04 | 2012-11-07 | 武汉理工大学 | Fully-automatic image timing and information management system for athletic competition |
| CN103456052A (en) * | 2013-08-29 | 2013-12-18 | 无锡乾晟景观设计有限公司 | Device for monitoring use time of cell phone |
| CN107376300A (en) * | 2017-07-12 | 2017-11-24 | 沈阳航空航天大学 | Track and field events automatic timing system based on UWB technology |
-
2002
- 2002-10-10 CN CN 02279497 patent/CN2582688Y/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102083505A (en) * | 2008-04-16 | 2011-06-01 | 耐克国际有限公司 | Athletic performance user interface for mobile device |
| CN102083505B (en) * | 2008-04-16 | 2013-09-04 | 耐克国际有限公司 | Athletic performance user interface for mobile device |
| CN101571964B (en) * | 2008-12-04 | 2012-11-07 | 武汉理工大学 | Fully-automatic image timing and information management system for athletic competition |
| CN101822897A (en) * | 2010-03-04 | 2010-09-08 | 马莉芳 | Judgment induction system |
| CN102402801A (en) * | 2011-12-02 | 2012-04-04 | 苏州慧飞信息科技有限公司 | Timing management system |
| CN103456052A (en) * | 2013-08-29 | 2013-12-18 | 无锡乾晟景观设计有限公司 | Device for monitoring use time of cell phone |
| CN103456052B (en) * | 2013-08-29 | 2016-01-06 | 无锡乾晟景观设计有限公司 | A kind of mobile phone monitoring device service time |
| CN107376300A (en) * | 2017-07-12 | 2017-11-24 | 沈阳航空航天大学 | Track and field events automatic timing system based on UWB technology |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |