CN105597297A - Timing device - Google Patents
Timing device Download PDFInfo
- Publication number
- CN105597297A CN105597297A CN201610143236.XA CN201610143236A CN105597297A CN 105597297 A CN105597297 A CN 105597297A CN 201610143236 A CN201610143236 A CN 201610143236A CN 105597297 A CN105597297 A CN 105597297A
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- China
- Prior art keywords
- light receiving
- laser
- time set
- laser beam
- processor
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
- A63B71/00—Games or sports accessories not covered in groups A63B1/00 - A63B69/00
- A63B71/06—Indicating or scoring devices for games or players, or for other sports activities
- A63B71/0686—Timers, rhythm indicators or pacing apparatus using electric or electronic means
-
- G—PHYSICS
- G04—HOROLOGY
- G04F—TIME-INTERVAL MEASURING
- G04F13/00—Apparatus for measuring unknown time intervals by means not provided for in groups G04F5/00 - G04F10/00
- G04F13/02—Apparatus for measuring unknown time intervals by means not provided for in groups G04F5/00 - G04F10/00 using optical means
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- Health & Medical Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Physical Education & Sports Medicine (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Measurement Of Unknown Time Intervals (AREA)
Abstract
The invention relates to the technical field of electronic circuits, in particular to a timing device. The timing device comprises a laser detector, a controller and a timer, wherein the laser detector and the timer are electrically connected with the controller respectively. The laser detector is used for generating induced electric signals after inducing the human body; the controller is used for generating stop signals after receiving the induced electric signals; the timer is used for timing and sending timing information to the controller when receiving the stop signals. By means of the timing device, timing errors can be reduced, the labor cost of timing can be saved, and manufacturing cost is low.
Description
Technical field
The present invention relates to electronic circuit technology field, in particular to a kind of time set.
Background technology
At present, in race or in running training needs timing, there are two kinds of modes:
1, at the hand-held signal flag of staff or the starting pistol of racing track starting point, at racing track terminalThe hand-held Chronograph of staff, when the staff of racing track starting point is by signal flag or issue an orderAfter rifle sends starting singal, the staff of racing track terminal by soon or ear listen receptionTo this starting singal, press Chronograph and start timing.
2, carry out timing by electronic starting pistol, in timing, starter can allow playerKeep starting posture about 2 seconds, then trigger starting pistol, send starting singal. Starting pistolBe built-in with sensor, in the time that starting pistol is triggered, sensor is triggered equally, with biographyThe timer that sensor connects starts timing. At the terminal of racing track, infrared induction device is installed;In the time that player reaches home, trigger infrared induction device, timing stops.
In above-mentioned first kind of way, because sound is propagated and needed the regular hour in air,When sound is passed to terminal by the starting point of racing track, the staff of timing also needs certain anti-Can timing between seasonable, cause timing error larger. In the above-mentioned second way, oneField match has multiple racing tracks, the timing of each racing track to need staff's operation, waveTake manpower, and due to cost reason, general school also may adopt match in the time of running trainingSpecial timer.
Therefore, a kind of error is little, and time set with low cost and saving human cost becomesProblem demanding prompt solution now.
Summary of the invention
In view of this, the object of the embodiment of the present invention is to provide a kind of time set, canReduce timing error, save the human cost of timing, and cheap for manufacturing cost.
The embodiment of the present invention provides a kind of time set, comprising: laser detector, controlDevice and timer;
Wherein, described laser detector and described timer are electrically connected with described controller respectivelyConnect;
Described laser detector is for generating electrical signal of reaction sensing after human body;
Described controller, for receiving after described electrical signal of reaction, generates stop signal;
Described timer is used for timing, and in the time receiving described stop signal, to described controlDevice sends clocking information.
Preferably, described laser detector comprises: LASER Light Source, scanning means, examined by lightSurvey device;
Described LASER Light Source is used for sending laser beam, and described laser beam irradiation is arrived to instituteState on scanning means;
Described scanning means can be reflected into described laser beam a scanning plane;
The described photodetector that is subject to is for responding to by the described laser light after described scanning means reflectionBundle, and when laser beam is blocked, generate electrical signal of reaction.
Comprised by photodetector: processor and light receiving circuit;
Described processor is electrically connected with described light receiving circuit;
Described light receiving circuit is for generate induced-current under described laser beam irradiation, and instituteState induced-current disappears in the time that laser beam is blocked;
Described processor for generating electrical signal of reaction in the time that described induced-current disappears.
Preferably, also comprise: analog-digital converter;
Described analog-digital converter connects between described processor and described light receiving circuit, forThe induced-current that described light receiving circuit is generated is converted to data signal by analog signal.
Preferably, described light receiving circuit has multiple; Multiple described light receiving circuits all with described placeThe electrical connection of reason device;
Multiple described light receiving circuits for described laser beam be reflected into scanning plane timeWait, respond to the described laser light after described scanning means reflection in different scanning angles respectivelyBundle;
Described processor is used for the induced electricity sending receiving successively different described light receiving circuitsStream, and do not receive described induced-current in Preset Time time, generate electrical signal of reaction.
Preferably, also comprise: encoder;
Described encoder is electrically connected with described light receiving circuit;
Described encoder is used for multiple described light receiving circuits to encode, and to described processingDevice sends coded message;
Described processor is also for generating electrical signal of reaction according to described coded message.
Preferably, described scanning means comprises: speculum.
Preferably, described speculum is also connected with whirligig;
Described whirligig can control described speculum taking perpendicular to described scanning over glaze as axleRepeatedly swinging within the scope of preset angles of line.
Preferably, also comprise: display screen and/or sound broadcasting device.
Preferably, also comprise: also comprise: channel frame.
The time set that the embodiment of the present invention provides, by the time that sportsman reaches homeWait, can, through being arranged on the laser detector on runway, in process, can be swashedPhoto-detector senses. And laser detector generates electrical signal of reaction sensing after human body,And this electrical signal of reaction is sent to controller. Controller is receiving after this electrical signal of reaction,Generate stop signal, and this stop signal is sent to timer. Timer stops receivingAfter stop signal, clocking information is sent to controller. The precision of the detection of laser detectorHeight, therefore the error of timing is little, and when timing, is to come automatically by laser detectorRespond to, need to not be equipped with separately a timing for the sportsman on each racing trackStaff, saves people's force information. Meanwhile, laser detector, controller and timerUse with respect to prior art, the device of use is few, cost is low. Thereby, subtractingWhen little timing error, also save the human cost of timing, and cheap for manufacturing cost.
For above-mentioned purpose of the present invention, feature and advantage can be become apparent, belowEspecially exemplified by preferred embodiment, and coordinate appended accompanying drawing, be described in detail below.
Brief description of the drawings
In order to be illustrated more clearly in the technical scheme of the embodiment of the present invention, below will be to embodimentIn the accompanying drawing of required use be briefly described, should be appreciated that the following drawings only showsSome embodiment of the present invention, therefore should not be counted as the restriction to scope, for abilityTerritory those of ordinary skill, is not paying under the prerequisite of creative work, can also basisThese accompanying drawings obtain other relevant accompanying drawings.
Fig. 1 shows the structural representation of a kind of time set that the embodiment of the present invention providesFigure;
Fig. 2 shows in the time set that the embodiment of the present invention provides, laser detectorJust carry structural representation;
Fig. 3 shows in the time set that the embodiment of the present invention provides, and another kind of laser is visitedThat surveys device just carries structural representation;
Fig. 4 shows the structural representation of the another kind of time set that the embodiment of the present invention providesFigure;
Illustrate:
Laser detector 10, LASER Light Source 101, scanning means 102, be subject to photodetector 103,Processor 104, light receiving circuit 105, analog-digital converter 106, encoder 107.
Controller 20, timer 30, display screen 50, sound broadcasting device 60.
Detailed description of the invention
Below in conjunction with accompanying drawing in the embodiment of the present invention, to the technical side in the embodiment of the present inventionCase is clearly and completely described, and obviously, described embodiment is only the present invention onePart embodiment, instead of whole embodiment. Conventionally in accompanying drawing, describe and illustrate hereinThe assembly of the embodiment of the present invention can arrange and design with various configuration. Therefore,Below the detailed description of the embodiments of the invention that provide in the accompanying drawings being not intended to restriction wantsAsk the scope of the present invention of protection, but only represent selected embodiment of the present invention. Based onEmbodiments of the invention, those skilled in the art are not making under the prerequisite of creative workThe every other embodiment obtaining, belongs to the scope of protection of the invention.
The time set using in race or running training at present, saves costTime set error large, and high with high costs of accuracy of detection, and need many people's operations,Wasting manpower and material resources, based on this, a kind of time set that the application provides, can improveWhen accuracy of timekeeping, reduce testing cost, and do not need manual operation, self-clocking.
It should be noted that in description of the invention, term " " center ", " on ", D score,Orientation or the position of the instruction such as " left side ", " right side ", " vertically ", " level ", " interior ", " outward "Pass is based on orientation shown in the drawings or position relationship, is only the present invention for convenience of descriptionAnd simplified characterization, instead of device or the element of instruction or hint indication must have specificallyOrientation, with specific orientation structure and operation, therefore can not be interpreted as limitation of the present invention.In addition, term " first ", " second ", " the 3rd " be only for describing object, and can not manageSeparate as instruction or hint relative importance.
In addition, in description of the invention, unless otherwise clearly defined and limited, term" installation ", " being connected ", " connection " should be interpreted broadly, and for example, can be to be fixedly connected with,Also can be to removably connect, or connect integratedly; Can be mechanical connection, can be alsoElectrical connection; Can be to be directly connected, also can indirectly be connected by intermediary, Ke YishiThe connection of two element internals. For the ordinary skill in the art, can be concreteSituation is understood above-mentioned term concrete meaning in the present invention.
Shown in Figure 1, the time set that the embodiment of the present invention provides comprises: laser is visitedSurvey device 10, controller 20 and timer 30;
Wherein, described laser detector 10 and described timer 30 respectively with described controlDevice 20 is electrically connected;
Described laser detector 10 is for generating electrical signal of reaction sensing after human body;
Described controller 20, for receiving described electrical signal of reaction, generates stop signal;
Described timer 30 is for timing, and in the time receiving described stop signal, to describedController 20 sends clocking information.
In concrete enforcement, laser detector is installed in the final position of runway, andController connects by wired or wireless mode; Controller can be single-chip microcomputer, calculatingMachine, programmable logic controller (PLC) etc. can be realized laser detector and timer are controlledThe equipment of system, and timer is generally the electronic time unit being electrically connected with controller. GenerallyGround, in match or running training, all needs a starting apparatus, this dress of issuing an orderPut in being triggered, can send starting singal (for example, if starting pistol is being touchedWhen sending out, can sound), this starting apparatus is also connected with a trigger simultaneously, and this touchesHair device can be triggered when starting apparatus sends starting singal, generates timing signal,Pass to controller by wired or wireless mode. Controller is receiving this timing letterAfter number, triggering timing device starts timing. In the time that sportsman reaches home, can be through peaceBe contained in the laser detector on runway, in process, can be responded to by laser detectorArrive. And laser detector generates electrical signal of reaction sensing after human body, and by this induced electricitySignal sends to controller. Controller is receiving after this electrical signal of reaction, generates and stops letterNumber, and this stop signal is sent to timer. Timer is receiving after stop signal,Clocking information is sent to controller.
Usually, due to race or training in may be that multiple people carry out together,Therefore, preferably, if many people need to arrive at terminal at different racing tracks, so just shouldAt each racing track, a laser detector is all installed, each laser detector all with controlDevice connects; If many people are only in block clearance time racing track difference, and in arriving at terminal racing trackIdentical, so only need a laser detector just can satisfy the demand. Therefore, Ke YiController arranges multiple connectivity ports, and this connectivity port is for being connected with laser detector. NeedWant several laser detectors, just on connectivity port, install several. In addition, when many people carry outIn training or race time,, timer, in timing, receives after stop signal, andCan really not stop timing, but only the clocking information of receiving the stop signal moment be sentGive controller. Usually, have several individuals train together or race, timer just can connectReceive several stop signals, the clocking information that will generate so same quantity sends to controlDevice. This clocking information is sportsman from starting singal is sent, arrives at end to sportsmanThe time of point.
In addition, preferably, in the time set providing in the embodiment of the present invention, referring to figureShown in 4, can also on controller, connect display screen 50 and/or sound broadcasting device 60.When controller receives after clocking information, this clocking information can be shown by display screen,Or play back by sound broadcasting device.
The time set that the embodiment of the present invention provides, by the time that sportsman reaches homeWait, can, through being arranged on the laser detector on runway, in process, can be swashedPhoto-detector senses. And laser detector generates electrical signal of reaction sensing after human body,And this electrical signal of reaction is sent to controller. Controller is receiving after this electrical signal of reaction,Generate stop signal, and this stop signal is sent to timer. Timer stops receivingAfter stop signal, clocking information is sent to controller. The precision of the detection of laser detectorHeight, therefore the error of timing is little, and when timing, is to come automatically by laser detectorRespond to, need to not be equipped with separately a timing for the sportsman on each racing trackStaff, saves people's force information. Meanwhile, laser detector, controller and timerUse with respect to prior art, the device of use is few, cost is low. Thereby, subtractingWhen little timing error, also save the human cost of timing, and cheap for manufacturing cost.
Shown in Figure 2, in the time set that the embodiment of the present invention provides, laser acquisitionDevice comprises: LASER Light Source 101, scanning means 102, be subject to photodetector 103;
Described LASER Light Source 101 is for sending laser beam, and by described laser beam irradiationTo described scanning means 102;
Described scanning means 102 can be reflected into described laser beam a scanning plane;
The described photodetector 103 that is subject to swashs for responding to by described after the reflection of described scanning meansLight light beam, and when laser beam is blocked, generate electrical signal of reaction.
In concrete enforcement, LASER Light Source 101 is for sending laser beam. This laserLight source 101 is closed, is not vulnerable to the impact of external environment, and easily forms laser lightBundle. And LASER Light Source 101 adopts lower powered visible ray laser, for example He-Ne Lasers, halfConductor Laser etc. And the laser beam that LASER Light Source 101 sends is thinner, therebyIn order to improve the precision of scanning, avoid, because laser beam is meticulous, causing data to occur largerError, the emitted laser beam of LASER Light Source 101 is directly injected into scanning means 102.This scanning means 102 is generally the reflecting mechanism that speculum etc. can reflect beams of laser light, energyEnough LASER Light Source is reflected away, and at the same time, the angle of speculum can be constantly at a high speedChange, cause laser beam to be transmitted to different directions, finally form fan-shaped sweepingRetouch face. And in order to control the rotation of speculum, whirligig can also be installed on speculum,This whirligig can be controlled speculum taking the axle perpendicular to scanning plane as axis, in preset angleWithin the scope of degree, repeatedly swing, finally form scanning plane.
Shown in Figure 3, in the time set that the embodiment of the present invention provides, detected by light103 of devices be a kind of can be under the irradiation of laser beam a kind of device of generation current. BagDraw together: processor 104 and light receiving circuit 105;
Described processor 104 is electrically connected with described light receiving circuit 105;
Described light receiving circuit 105 is for generate induced-current under described laser beam irradiation,And described induced-current disappears in the time that laser beam is blocked;
Described processor 104 for generating electrical signal of reaction in the time that described induced-current disappears.
In specific implementation, light receiving circuit 105 generally comprises a sensitive device, shouldSensitive device can be photodiode, can be also the sensitive surface that special material is made. NoPipe is photodiode or sensitive surface, can both, under the irradiation of laser beam, light be believedNumber be converted into the signal of telecommunication. And by bypass circuit by this electrical signal transfer to processor 104.Wherein, it should be noted that the induced-current producing due to light receiving circuit 105 is simulationSignal, and the signal that processor 104 can be processed is data signal, therefore at processor 104And between light receiving circuit 105, be also connected with analog-digital converter 106. This analog-digital converter 106For induced-current is converted to data signal from analog signal. When laser beam with examined by lightWhen having laser between survey device 103, light receiving circuit 105 can produce an induced electricity alwaysStream sends to processor. Once and have sportsman from laser beam and be subject to photodetector 103 itBetween pass through, laser beam is blocked, and means that light receiving circuit no longer produces induced-current, thisTime, induced-current disappears. And processor side is when induced-current disappears, generate inductionThe signal of telecommunication.
Shown in Figure 3 in addition, because can being scanned device 102, laser beam reflects to formA scanning plane, the rotation of timing scanning means 102 is very fast, and the naked eyes of employment be it seems, instituteThe scanning plane forming all can be covered by laser beam at synchronization, but in fact, no matterHow soon the swing of scanning means 102 has, and at synchronization, only has single laser on scanning planeJust the area that light beam can cover has laser beam, therefore, in order to ensure that laser beam sweepingRetouch in the process that forms scanning plane, can both detect by light at different scanning positionsDevice 103 is received, and in the time set providing in the embodiment of the present invention, each is subject toThe light receiving circuit 105 of photodetector 103 can be provided with multiple. Wherein, described in multiple, be subject toOptical circuit 105 is all electrically connected with described processor 104;
Multiple described light receiving circuits 105 are being reflected into scanning plane for described laser beamTime, respond to the described laser light after described scanning means reflection in different scanning angles respectivelyBundle;
Described processor is used for the induced electricity sending receiving successively different described light receiving circuitsStream, and do not receive described induced-current in Preset Time time, generate electrical signal of reaction.
In specific implementation, laser beam will form scanning plane, need to be by laser beamIn default angle, launch back and forth, therefore multiple light receiving circuits 105 are set, this is subject toOptical circuit 105 is arranged on respectively in the different scanning angle of scanning plane.
Wherein, light receiving circuit 104 has two kinds of set-up modes:
1, ensure no matter which angle of laser beam directive all has a light receiving circuit 105Can sense laser beam, therefore in the situation that laser beam is not blocked, at eachIn the individual moment, all there is at least one light receiving circuit 105 can receive induced-current.
2,, every the default time, processor just can be received once by different light receiving circuits105 induced-currents that send.
And these light receiving circuits 105 are all connected with processor 104, mean, once laserBe blocked. No matter be where being blocked of scanning plane, all can make processor 104 at certainOne moment cannot receive induced-current, or made processor 104 not have nothing at Preset TimeMethod is received induced-current, means in this sportsman who goes to and has arrived at terminal.
In addition, make laser beam form scanning plane, and multiple light receiving circuits 105 be set,Also has another one advantage: when at least two sportsmen almost arrive at terminal at synchronizationTime, sportsman all can be by essence by the moment of each light receiving circuit 105 on scanning planeTrue records, and therefore, is which sportsman more first arrives at terminal on earth in contrastTime, can first judge by scanning plane according to whom, do not need as in prior artGenerally, need to carry out one by one playback core by the captured picture of high-speed cameraRight method judges.
In addition, shown in Fig. 3 and Fig. 4, for judge athletic particular location (In a certain moment, which position sportsman is positioned on earth in scanning plane), processor also connectsThere is encoder 107.
Described encoder 107 is electrically connected with described light receiving circuit 105;
Described encoder 107 is for multiple described light receiving circuits 105 are encoded, and toDescribed processor 104 sends coded message;
Described processor 104 is also for generating electrical signal of reaction according to described coded message.
In specific implementation, encoder 107 is directly connected with light receiving circuit 105. WhenWhen light receiving circuit 105 sends current signal to processor 104, encoder 107 simultaneouslyAlso can think that processor sends coded message. If a certain moment, certain light receiving circuit 105 shouldSend current signal to processor 104, but this signal is blocked, processor just soCan generate electrical signal of reaction according to coded message.
It should be noted that the electrical signal of reaction that now generated may have multiple (sportsmenStart until last light receiving circuit finishes from first light receiving circuit).
And in the process of running sportsman, have and lift the action of getting over before leg, therefore, forWhen preventing that sportsman from going to terminal, cross laser beam, can be by laser detector 10Be arranged on higher position, the time set that therefore embodiment of the present invention provides also wrapsDraw together: channel frame. This channel frame is for setting up default height by laser detector 10.
The above, be only the specific embodiment of the present invention, but protection scope of the present inventionBe not limited to this, any be familiar with those skilled in the art the present invention disclose skillWithin the scope of art, can expect easily changing or replacing, all should be encompassed in protection scope of the present inventionWithin. Therefore, protection scope of the present invention should described be as the criterion with the protection domain of claim.
Claims (10)
1. a time set, is characterized in that, comprising: laser detector, controller withAnd timer;
Wherein, described laser detector and described timer are electrically connected with described controller respectivelyConnect;
Described laser detector is for generating electrical signal of reaction sensing after human body;
Described controller, for receiving after described electrical signal of reaction, generates stop signal;
Described timer is used for timing, and in the time receiving described stop signal, to described controlDevice sends clocking information.
2. time set according to claim 1, is characterized in that, described laser is visitedSurvey device comprises: LASER Light Source, scanning means, be subject to photodetector;
Described LASER Light Source is used for sending laser beam, and described laser beam irradiation is arrived to instituteState on scanning means;
Described scanning means can be reflected into described laser beam a scanning plane;
The described photodetector that is subject to is for responding to by the described laser light after described scanning means reflectionBundle, and when laser beam is blocked, generate electrical signal of reaction.
3. time set according to claim 2, is characterized in that, described in examined by lightSurvey device comprises: processor and light receiving circuit;
Described processor is electrically connected with described light receiving circuit;
Described light receiving circuit is for generate induced-current under described laser beam irradiation, and instituteState induced-current disappears in the time that laser beam is blocked;
Described processor for generating electrical signal of reaction in the time that described induced-current disappears.
4. time set according to claim 3, is characterized in that, also comprises: mouldNumber converter;
Described analog-digital converter connects between described processor and described light receiving circuit, forThe induced-current that described light receiving circuit is generated is converted to data signal by analog signal.
5. according to the time set described in claim 3 or 4, it is characterized in that, described inLight receiving circuit has multiple; Multiple described light receiving circuits are all electrically connected with described processor;
Multiple described light receiving circuits for described laser beam be reflected into scanning plane timeWait, respond to the described laser light after described scanning means reflection in different scanning angles respectivelyBundle;
Described processor is used for the induced electricity sending receiving successively different described light receiving circuitsStream, and do not receive described induced-current in Preset Time time, generate electrical signal of reaction.
6. time set according to claim 5, is characterized in that, also comprises: compileCode device;
Described encoder is electrically connected with described light receiving circuit;
Described encoder is used for multiple described light receiving circuits to encode, and to described processingDevice sends coded message;
Described processor is also for generating electrical signal of reaction according to described coded message.
7. according to the time set described in claim 2 or 3, it is characterized in that, described in sweepImaging apparatus comprises: speculum.
8. time set according to claim 4, is characterized in that, described speculumAlso be connected with whirligig;
Described whirligig can control described speculum taking perpendicular to described scanning over glaze as axleRepeatedly swinging within the scope of preset angles of line.
9. time set according to claim 1, is characterized in that, also comprises: aobviousShow screen and/or sound broadcasting device.
10. time set according to claim 1, is characterized in that, also comprises:Also comprise: channel frame.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610143236.XA CN105597297A (en) | 2016-03-14 | 2016-03-14 | Timing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610143236.XA CN105597297A (en) | 2016-03-14 | 2016-03-14 | Timing device |
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|---|---|
| CN105597297A true CN105597297A (en) | 2016-05-25 |
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|---|---|---|---|
| CN201610143236.XA Pending CN105597297A (en) | 2016-03-14 | 2016-03-14 | Timing device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109658794A (en) * | 2019-01-27 | 2019-04-19 | 重庆大学 | For automatically determining the experiment device for teaching in double reaction reagent system reaction time |
| CN114077251A (en) * | 2021-11-12 | 2022-02-22 | 展讯通信(天津)有限公司 | Timing system for robot maze |
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| JPH01218479A (en) * | 1988-02-25 | 1989-08-31 | Hiroshi Kodama | Traveling object detector |
| CN101729045A (en) * | 2009-09-27 | 2010-06-09 | 上海大学 | Signal detecting and shaping circuit, and thunder light triggered timer and self-clocking runway thereof |
| CN103440688A (en) * | 2013-06-28 | 2013-12-11 | 雷建设 | Sport meeting competition full-automatic timer |
| CN205759567U (en) * | 2016-03-14 | 2016-12-07 | 深圳市弘康裕科技有限公司 | A kind of time set |
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2016
- 2016-03-14 CN CN201610143236.XA patent/CN105597297A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01218479A (en) * | 1988-02-25 | 1989-08-31 | Hiroshi Kodama | Traveling object detector |
| CN101729045A (en) * | 2009-09-27 | 2010-06-09 | 上海大学 | Signal detecting and shaping circuit, and thunder light triggered timer and self-clocking runway thereof |
| CN103440688A (en) * | 2013-06-28 | 2013-12-11 | 雷建设 | Sport meeting competition full-automatic timer |
| CN205759567U (en) * | 2016-03-14 | 2016-12-07 | 深圳市弘康裕科技有限公司 | A kind of time set |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109658794A (en) * | 2019-01-27 | 2019-04-19 | 重庆大学 | For automatically determining the experiment device for teaching in double reaction reagent system reaction time |
| CN109658794B (en) * | 2019-01-27 | 2021-03-02 | 重庆大学 | Teaching experiment device for automatically measuring reaction time of double-reaction reagent system |
| CN114077251A (en) * | 2021-11-12 | 2022-02-22 | 展讯通信(天津)有限公司 | Timing system for robot maze |
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