CN206896773U - A kind of remote throwing event automatic range unit of athletic competition - Google Patents
A kind of remote throwing event automatic range unit of athletic competition Download PDFInfo
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- CN206896773U CN206896773U CN201720672993.6U CN201720672993U CN206896773U CN 206896773 U CN206896773 U CN 206896773U CN 201720672993 U CN201720672993 U CN 201720672993U CN 206896773 U CN206896773 U CN 206896773U
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Abstract
The utility model provides a kind of remote throwing event automatic range unit of athletic competition, including sensor, signal processing unit, PC and display screen, described sensor includes the infrared distance sensor being arranged on ammunition and ultrasonic transmitter and is respectively arranged at measuring point A, B, C ultrasonic wave reception sensor, when infrared distance measuring sensor detects ammunition apart from ground 2CM, triggering ultrasonic transmitter sends ultrasonic signal, now, the ultrasonic wave for being arranged at measuring point A, B, C receives the reception that sensor carries out ultrasonic signal.Using ultrasonic wave receive sensor using the propagation distance different band of sound come ultrasonic wave reception sensor reception signal time it is poor, according to geometry law, cast is calculated using the computer software of PC, is shown in display screen, measurement result is more accurate than manually measuring result.
Description
Technical field
A kind of automatic range unit technical field is the utility model is related to, more particularly to a kind of athletic competition is thrown at a distance
Project automatic range unit.
Background technology
The field events long range throwing event of athletic competition has javelin, discus, hammer etc., its existing (international, domestic large-scale match
Thing) measurement distance method is：Referee finds ammunition drop point, and " six prisms " is placed at drop point, rangefinder scanning " six ribs
Mirror " calculates cast.And common survey method is referee's searching drop point, with battle fathom amount.
Two kinds of traditional measuring method shortcomings are：1st, finding ammunition drop point has certain risk, and each rank match was all once
Referee is stabbed through there is javelin, discus injures referee by a crashing object, hammer wire sweeps phenomena such as hindering referee；Occur when the 2nd, repeatedly throwing
Multiple intersection drop points judge easily there is drop point misjudgment；3rd, battle rope has certain flexible error；4th, " six prisms " scanning is surveyed
Away from easily by the interference such as weather, light.
The content of the invention
For overcome the deficiencies in the prior art, the utility model provides a kind of remote throwing event of athletic competition and surveyed automatically
Away from device, three measuring points are set in throwing field, propagation distance different band of the sensor using sound is received using ultrasonic wave
The signal time that the ultrasonic wave come receives sensor reception is poor, according to geometry law, is calculated using the computer software of PC
Cast, shown in display screen.
In order to achieve the above object, the utility model is realized using following technical scheme：
A kind of remote throwing event automatic range unit of athletic competition, including sensor, signal processing unit, PC and
Display screen, described sensor include the infrared distance sensor being arranged on ammunition and ultrasonic transmitter and set respectively
The ultrasonic wave for being placed in measuring point A, B, C receives sensor, when infrared distance measuring sensor detects ammunition apart from ground 2CM,
Triggering ultrasonic transmitter sends ultrasonic signal, and now, the ultrasonic wave for being arranged at measuring point A, B, C receives sensor progress ultrasound
The reception of ripple signal.
Described ultrasonic wave receives sensor and connects signal processing unit by signal wire, and signal processing unit is connect with communicating
Mouth mode connects PC, and PC is connected by interface with display screen.
Described ultrasonic wave receives sensor and sends the ultrasonic signal received to signal processing unit progress signal
Processing, PC is sent the signal to afterwards, the time difference for the ultrasonic signal that PC is received by calculating three measuring points, is calculated
Go out the cast of ammunition.
Described infrared distance sensor is connected with ultrasonic transmitter by signal wire, is mounted in ammunition
Portion.
It is ultrasonic wave receiving transducer that described ultrasonic wave, which receives sensor, and its ultrasonic signal received need to pass through signal
Processing unit is amplified, waveform converts and data conversion.
Described signal processing unit is data collecting card, receives 4~20mA standard signals of described sensor, passes through
MODBUS-RTU modes or USB communication modes send the signal to PC.
Described infrared distance sensor can be arranged at multiple faces on ammunition, and multi-angle judges ground clearance.
Compared with prior art, the beneficial effects of the utility model are：
The utility model proposes a kind of remote throwing event automatic range unit of athletic competition, abandoned conventional body
Project distance-finding method is educated, is measured without manpower, three measuring points are set in throwing field, sensor profit is received using ultrasonic wave
With the propagation distance different band of sound come ultrasonic wave receive sensor receive signal time it is poor, can according to geometry law,
Cast is calculated using the computer software of PC, measurement result is more accurate than manually measuring result.
Brief description of the drawings
Fig. 1 be the utility model proposes a kind of remote throwing event automatic range unit of athletic competition structural representation
Figure；
Fig. 2 be the utility model proposes a kind of remote throwing event automatic range unit distance-finding method of athletic competition
Geometrical principle figure.
Fig. 3 be the utility model proposes a kind of remote throwing event automatic range unit of athletic competition specific implementation
Illustration.
Embodiment
Embodiment provided by the utility model is described in detail below in conjunction with accompanying drawing.
As shown in figure 1, a kind of remote throwing event automatic range unit of athletic competition, including sensor, signal transacting
Unit, PC and display screen, described sensor include the infrared distance sensor being arranged on ammunition and ultrasonic wave transmitting
Device and be respectively arranged at measuring point A, B, C ultrasonic wave receive sensor, when infrared distance measuring sensor detect ammunition away from
From the ground during 2CM, triggering ultrasonic transmitter sends ultrasonic signal, and now, the ultrasonic wave for being arranged at measuring point A, B, C receives biography
Sensor carries out the reception of ultrasonic signal.
Described ultrasonic wave receives sensor and connects signal processing unit by signal wire, and signal processing unit is connect with communicating
Mouth mode connects PC, and PC is connected by interface with display screen.
Described ultrasonic wave receives sensor and sends the ultrasonic signal received to signal processing unit progress signal
Processing, PC is sent the signal to afterwards, the time difference for the ultrasonic signal that PC is received by calculating three measuring points, is calculated
Go out the cast of ammunition.
Described infrared distance sensor is connected with ultrasonic transmitter by signal wire, is mounted in ammunition
Portion.
It is ultrasonic wave receiving transducer that described ultrasonic wave, which receives sensor, and its ultrasonic signal received need to pass through signal
Processing unit is amplified, waveform converts and data conversion.
Described signal processing unit is data collecting card, receives 4~20mA standard signals of described sensor, passes through
MODBUS-RTU modes or USB communication modes send the signal to PC.
Described infrared distance sensor can be arranged at multiple faces on ammunition, and multi-angle judges ground clearance.
The preferred sharp of described infrared distance sensor infrared distance sensor, described ultrasonic transmitter and super
Acoustic receiver probe is prior art, and ultrasonic wave transmitting circuit and receiving circuit are designed as common circuit design, here not
It is described in detail.
Conventional ultrasonic wave single-shot transmit-receive radio road is simple in construction, and low power ultrasonic wave transmitting circuit can be integrated into one piece small
On the circuit board of area, install or be embedded in advance inside discus, hammer and javelin, the barral of a gun part of javelin can also be installed on.
The preferred model DAM0404 of described data collecting card, including 4 road DI inputs and 4 road DO outputs, are supported
RS232MODBUS RTU serial communication protocols
It is as shown in Fig. 2 remote using a kind of athletic competition of the remote throwing event automatic range unit of the athletic competition
Apart from throwing event automatic range method, measuring point A, B and C are fixing point, and it is fixing point to throw point O, thus then：A and B, B and C,
The distance between C and A c, b, a definite value, the distance between O and A, B, C a for known to0、b0、c0For known definite value；A, tri- surveys of B, C
Point receives the clock t of voice signalA、tB、tCFor given value；
Comprise the following steps：
Step 1: calculate AB and AO angle theta1With AO and AC angle theta2, θ is obtained using below equation1And θ2：
b0 2=c2+a0 2-2ca0cosθ1
c0 2=b2+a0 2-2ba0cosθ2
Step 2: the clock t of voice signal is received according to tri- measuring points of A, B, CA、tB、tCList below equation：
lb=la+v(tB-tA)
lc=la+v(tC-tA)
Wherein：laFor measuring point A and pick-up point P distance, lbFor measuring point B and pick-up point P distance, lcFor measuring point C and landing
Point P distance, v are the velocity of sound；
Step 3: lb the and lc formula in step 2 are substituted into below equation group：
lc 2=la 2+b2-2lab cosθ3
lb 2=la 2+c2-2lac cos(θ1+θ2+θ3)
Obtain laAnd θ3；
Point O and pick-up point P is thrown Step 4: being calculated using the result of calculation in step 1 to step 3 by following equation
The distance between lop：
lop=a0 2+la 2-2a0la cos(θ2+θ3)。
The calculating process of computational methods above can be completed in PC, and corresponding application software is installed in PC
Calculating is automatically performed, application software can be developed by VB, VC, or directly calculate result by Matlab.
As shown in figure 3, be that illustration is embodied, the measuring point A set respectively on javelin throwing place, measuring point B, measuring point C,
Calculated by throwing point O, pick-up point P of javelin throwing zone fan shape center point according to landing position on the spot by the present apparatus and method
Throw point O and pick-up point P distance.
Above example is implemented under premised on technical solutions of the utility model, gives detailed embodiment
With specific operating process, but the scope of protection of the utility model is not limited to the above embodiments.Side used in above-described embodiment
Method is conventional method unless otherwise instructed.
Claims (5)
1. a kind of remote throwing event automatic range unit of athletic competition, including sensor, signal processing unit, PC and aobvious
Display screen, it is characterised in that described sensor includes the infrared distance sensor and ultrasonic transmitter being arranged on ammunition
And measuring point A, B, C ultrasonic wave reception sensor are respectively arranged at, when infrared distance measuring sensor detects ammunition distance
During the 2CM of ground, triggering ultrasonic transmitter sends ultrasonic signal, and now, the ultrasonic wave for being arranged at measuring point A, B, C receives sensing
Device carries out the reception of ultrasonic signal；
Described ultrasonic wave receives sensor and connects signal processing unit by signal wire, and signal processing unit is with communication interface side
Formula connects PC, and PC is connected by interface with display screen；
Described ultrasonic wave receives sensor and sends the ultrasonic signal received to signal processing unit progress signal transacting,
PC is sent the signal to afterwards, the time difference for the ultrasonic signal that PC receives by calculating three measuring points, calculates throwing
Throw the cast of thing.
A kind of 2. remote throwing event automatic range unit of athletic competition according to claim 1, it is characterised in that institute
The infrared distance sensor stated is connected with ultrasonic transmitter by signal wire, is mounted on inside ammunition.
A kind of 3. remote throwing event automatic range unit of athletic competition according to claim 1, it is characterised in that institute
It is ultrasonic wave receiving transducer that the ultrasonic wave stated, which receives sensor, and its ultrasonic signal received need to enter by signal processing unit
Row amplification, waveform conversion and data conversion.
A kind of 4. remote throwing event automatic range unit of athletic competition according to claim 1, it is characterised in that institute
The signal processing unit stated is data collecting card, receives 4~20mA standard signals of described sensor, passes through MODBUS-RTU
Mode or USB communication modes send the signal to PC.
A kind of 5. remote throwing event automatic range unit of athletic competition according to claim 1, it is characterised in that institute
The infrared distance sensor stated can be arranged at multiple faces on ammunition, and multi-angle judges ground clearance.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720672993.6U CN206896773U (en) | 2017-06-12 | 2017-06-12 | A kind of remote throwing event automatic range unit of athletic competition |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720672993.6U CN206896773U (en) | 2017-06-12 | 2017-06-12 | A kind of remote throwing event automatic range unit of athletic competition |
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| Publication Number | Publication Date |
|---|---|
| CN206896773U true CN206896773U (en) | 2018-01-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720672993.6U Expired - Fee Related CN206896773U (en) | 2017-06-12 | 2017-06-12 | A kind of remote throwing event automatic range unit of athletic competition |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107233721A (en) * | 2017-06-12 | 2017-10-10 | 石东瑞 | A kind of remote throwing event automatic range unit of athletic competition and method |
| CN112791369A (en) * | 2021-03-29 | 2021-05-14 | 烟台大学 | Sports throwing measuring device |
| CN113357970A (en) * | 2021-06-01 | 2021-09-07 | 中国人民解放军陆军军医大学 | Training grenade ranging system |
| CN113384864A (en) * | 2021-05-12 | 2021-09-14 | 山东大学 | Object throwing distance detection device and method |
-
2017
- 2017-06-12 CN CN201720672993.6U patent/CN206896773U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107233721A (en) * | 2017-06-12 | 2017-10-10 | 石东瑞 | A kind of remote throwing event automatic range unit of athletic competition and method |
| CN107233721B (en) * | 2017-06-12 | 2023-01-24 | 鞍山师范学院 | Automatic distance measuring device and method for long-distance throwing item in sports competition |
| CN112791369A (en) * | 2021-03-29 | 2021-05-14 | 烟台大学 | Sports throwing measuring device |
| CN113384864A (en) * | 2021-05-12 | 2021-09-14 | 山东大学 | Object throwing distance detection device and method |
| CN113357970A (en) * | 2021-06-01 | 2021-09-07 | 中国人民解放军陆军军医大学 | Training grenade ranging system |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180119 |
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| CF01 | Termination of patent right due to non-payment of annual fee |