CN211935337U - Electronic take-off pedal device - Google Patents

Abstract

The utility model relates to an electronic pedal technical field discloses an electronic take-off pedal device, including pedal device and data terminal, pedal device includes pedal base and pressure detection unit, pressure detection unit includes pressure sensing dot matrix and signal processing module, the pressure sensing dot matrix is including setting up a plurality of pressure detection device on pedal base, and a plurality of pressure detection device that lie in same horizontal row transmit the detected signal to signal processing module after connecting in parallel, data terminal includes integrated circuit board, signal processing module sets up on integrated circuit board; the utility model provides a pair of electron take-off pedal device can improve the accuracy to the starting point location on the run-up direction.

Description

Electronic take-off pedal device

Technical Field

The utility model relates to an electron footboard technical field, concretely relates to electron take-off pedal device.

Background

The long jump sport starts with the take-off pedal in 1886. As shown in fig. 1 and 2, the take-off pedal 2 ' is buried underground, flush with the ground, 122cm long, 20cm wide and 10cm thick, the edge of the take-off pedal 2 ' close to the landing zone 4 ' is called a take-off wire, the take-off wire is 1-3m from the near end of the landing zone and at least 10m from the far end of the landing zone, and the athlete must take off behind the take-off wire.

In order to conveniently judge whether the athlete makes a foul, a plasticine display plate 3 'is arranged in front of the take-off line, and the plasticine display plate 3' is arranged at a groove on one side of the take-off line close to the floor area 4 'or is made into a partition plate to be integrated with the take-off pedal 2'. The plasticine display plate 3' is 122cm long, 10cm wide, the horizontal height exceeds the take-off pedal by 0.7cm, the edge close to the take-off pedal is inclined towards the run-up direction to form a 45-degree inclined surface, and plasticine with the thickness of 0.1 cm is covered on the inclined surface.

According to the rule requirement, the player must take off the jumper behind the take-off line to be effective, for the foul which is difficult to penalize visually, the referee usually uses the trace on the plasticine as the main basis for penalizing the foul, and the plasticine layer is also usually smoothed by a roller or other scrapers to eliminate the footprint of the player. Meanwhile, in a high-level long jump competition, the image of the take-off moment of the athlete is also used as the basis for assisting penalty judgment. By using the plasticine and the video playback and plasticine recovery mode, penalty judgment takes longer time, and dispute penalty is easy to occur.

At present, in international and domestic track and field sports meetings, the specifications of the used take-off pedal are as follows: the wooden pedal is 1.22 meters long, 20 centimeters wide and 10 centimeters thick, and when the wooden pedal is used, the pedal and the take-up wire are arranged in parallel, and one edge of the pedal is superposed with the take-up wire. The pedal is matched with the existing long jump rule for use, and the ideal conditions are as follows: the long jump athlete steps on the pedal without touching the jumping line; however, in general, in order to avoid the foul of the long jump athlete, the take-off toes of the long jump athlete are far away from the take-off wire, and the take-off toes can reach 20cm or more at most. And the long jump rules specify: the long jump achievement is uniformly calculated from the starting line, the mode of recording the competition achievement in the early stage is relatively fair under the condition that the science and technology is lagged behind at that time, but the pedal and the long jump competition rule are used up to now, and obvious defects exist.

Firstly, the mode of recording the jumping point of the 'one-time cutting' is obviously unfair; secondly, in order to avoid the foul, the long jump athlete can not reach the optimal competitive state to the maximum extent, and the self explosive force is fully exerted.

In the prior art, an infrared sensor is arranged at a critical line for foul, foul is monitored, alarm is achieved, and in such a way, athletes cannot improve scores by using a 45-degree inclined plane, so that a plasticine display panel still needs to be used, a plasticine layer is often leveled by using a roller or other scrapers, the time is prolonged by recovering plasticine, the problems that the time consumed by the foul is long and the foul is easy to be disputed still exist, and in the prior art, referees cannot accurately obtain jump-off data in real time.

SUMMERY OF THE UTILITY MODEL

To the problem that exists among the above-mentioned prior art, the utility model provides an electron take-off footboard device can improve the accuracy to the starting point location on the run-up direction.

The utility model discloses the technical scheme who adopts does:

the utility model provides an electron take-off footboard device, includes footboard device and data terminal, the footboard device includes pedal base and pressure measurement unit, pressure measurement unit includes pressure sensing dot matrix and signal processing module, the pressure sensing dot matrix is including setting up a plurality of pressure measurement on pedal base, and a plurality of pressure measurement who is located same horizontal row transmits detected signal to signal processing module after parallelly connected, data terminal includes integrated circuit board, signal processing module sets up on integrated circuit board.

Because the pressure sensing dot matrix comprises a plurality of pressure detection devices arranged on the pedal base, and a plurality of pressure detection devices positioned on the same transverse row are connected in parallel and then transmit detection signals to the signal processing module, the data terminal comprises an integrated circuit board, the signal processing module is arranged on the integrated circuit board, the minimum distance sampled in the run-up direction is the longitudinal spacing between adjacent ones of the row pressure detecting means, when a long jump athlete triggers a plurality of pressure detection devices in a take-off area, the data terminal can collect and process data, since the pressure detection devices of the same horizontal row are all connected in parallel, even if one pressure detection device in the same horizontal row detects pressure, the detection signal can be transmitted to the signal processing module, through setting up adjacent row's pressure measurement's vertical interval, then can improve the accuracy to the starting point location in the run-up direction.

Furthermore, in order to conveniently realize the observation of the starting point position, a pedal protection pad is arranged on the pressure sensing dot matrix, and a starting wire is transversely arranged on the pedal protection pad.

Further, for convenient start-up and protection pressure sensing dot matrix, the footboard protection pad is the thin layer cushion, the footboard base is made for stereoplasm plank base material, and the footboard protection pad is the same size with stereoplasm plank base material area.

Furthermore, in order to realize real-time feedback of data and facilitate the referee to obtain the start-up information in time, the signal output end of the integrated circuit board is connected with a display screen.

The signal processing module records the nearest contact to the jumping wire as the vertical distance from the jumping point to the jumping wire and displays the vertical distance on the display screen of the data terminal.

Furthermore, in order to realize the detection of the pressure, the pressure detection device comprises a contact switch, a metal spring piece and a spring, wherein the metal spring piece is positioned above the contact switch, the spring is positioned between the metal spring piece and the contact switch, and a plurality of contact switches positioned on the same transverse row are connected in parallel and then transmit the detection signal to the signal processing module.

Specifically, the upper end of the spring is specified at the end part of the metal spring piece, the lower end of the spring is opposite to the contact switch, and the contact switch is in a normally open state under a no-pressure state.

The pressure sensing dot matrix is connected with a power supply and data transmission interface, the data terminal is provided with a data acquisition interface, and the power supply and data transmission interface is connected with the data acquisition interface through a cable and a data transmission cable.

Furthermore, in order to realize power supply, information feedback and control operation of the device, the data terminal further comprises a lithium battery, a power supply switch, a zero clearing button and an alarm device, wherein the lithium battery is electrically connected with the integrated circuit board.

Further, in order to realize the reminding of the referee, the alarm device is a buzzer.

Furthermore, in order to facilitate charging, a USB charging plug for charging the lithium battery is further arranged on the data terminal.

Further, for convenient starting, the thin layer cushion is the same with pedal base area size, pedal base and pedal protection pad's width dimension are 300mm, the distance of the wire take-off line apart from pedal protection pad front end is 100mm, the distance of the wire take-off line apart from pedal protection pad rear end is 200 mm.

Further, in order to improve the accuracy of the starting point determination, the longitudinal distance between the adjacent pressure detection devices is 5mm, and the transverse distance is 10 mm.

That is, with this design, the minimum distance that can be sampled in the run-up direction is 5 mm.

Specifically, the pressure sensing dot matrix is composed of 7200 dot matrixes 60 × 120, the pressure sensing dot matrix can measure a long jump score with the precision of 5mm, the long jump score of the existing competition rule is only accurate to 10mm, if the precision is further improved, the number of the pressure detection devices can be modified, each pressure detection device is provided with a contact switch connected with the signal processing module, the contact switch is in a normally open state under the action of a metal spring piece and a spring, the material stress and the service life of the contact switch meet the requirement of long jump competition, the contact switch is spaced by 5mm in the run-up direction and is spaced by 10mm in the transverse direction, the contact switch in the transverse direction is connected in parallel, and the minimum distance for sampling in the run-up direction is 5 mm. When a long jump athlete triggers a plurality of contact switches in a take-off area, the data terminal acquires and processes data, records the contact closest to the take-off wire as the vertical distance from the take-off point to the take-off wire, and displays the vertical distance on a display screen of the data terminal.

The pedal protection pad is a thin protection layer soft pad covering a metal spring leaf of the pressure sensing dot matrix, and because the areas of the pedal protection pad and a hard wood board substrate are the same, a long-jump athlete can cause local deformation when jumping, contact switches around a jumping point can be triggered, sampling accuracy is affected, and the triggered contact switches can be only limited at the jumping point by adjusting the elastic coefficients of the metal spring leaf and the spring.

The utility model has the advantages that: because the pressure sensing dot matrix comprises a plurality of pressure detection devices arranged on the pedal base, and a plurality of pressure detection devices positioned on the same transverse row are connected in parallel and then transmit detection signals to the signal processing module, the data terminal comprises an integrated circuit board, the signal processing module is arranged on the integrated circuit board, the minimum distance sampled in the run-up direction is the longitudinal spacing between adjacent ones of the row pressure detecting means, when a long jump athlete triggers a plurality of pressure detection devices in a take-off area, the data terminal can collect and process data, since the pressure detection devices of the same horizontal row are all connected in parallel, even if one pressure detection device in the same horizontal row detects pressure, the detection signal can be transmitted to the signal processing module, through setting up adjacent row's pressure measurement's vertical interval, then can improve the accuracy to the starting point location in the run-up direction.

Drawings

FIG. 1 is a schematic top view of a conventional long jump playing area;

FIG. 2 is a schematic diagram of a side view of a conventional long jump playing area;

FIG. 3 is a schematic structural view of the pedal device of the present invention;

fig. 4 is a schematic structural diagram of the middle pressure detecting device of the present invention;

fig. 5 is a schematic structural diagram of the present invention.

In the figure: a step base 1; a pressure sensing dot matrix 2; a data terminal 3; an integrated circuit board 4; a pedal protection pad 5; a jumper wire 6; a display screen 7; a contact switch 8; a metal spring piece 9; a spring 10; a power supply and data transmission interface 11; a data acquisition interface 12; an electrical cable and data transmission cable 13; a lithium battery 14; a power supply switch 15; a clear button 16; an alarm device 17; a USB charging plug 18; a signal processing module 19.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

It should be noted that, in the present invention, the embodiments and features of the embodiments may be combined with each other without conflict.

The present invention will be further described with reference to the accompanying drawings and specific embodiments.

Example 1:

as shown in fig. 3-5, this embodiment provides an electronic jump pedal device, including pedal device and data terminal 3, the pedal device includes pedal base 1 and pressure detection unit, the pressure detection unit includes pressure sensing dot matrix 2 and signal processing module 19, pressure sensing dot matrix 2 includes a plurality of pressure detection device that sets up on pedal base 1, a plurality of pressure detection device that are located same horizontal row connect in parallel later with detection signal transmission to signal processing module 19, data terminal 3 includes integrated circuit board 4, signal processing module 19 sets up on integrated circuit board 4.

Because the pressure sensing dot matrix 2 comprises a plurality of pressure detection devices arranged on the pedal base 1, a plurality of pressure detection devices positioned on the same horizontal row are connected in parallel and then transmit detection signals to the signal processing module 19, the data terminal 3 comprises the integrated circuit board 4, the signal processing module 19 is arranged on the integrated circuit board 4, the minimum distance sampled in the run-up direction is the longitudinal spacing between adjacent ones of the row pressure detecting means, when a long jump athlete triggers a plurality of pressure detection devices in a take-off area, the data terminal 3 can collect and process data, since the pressure detecting devices in the same row are all connected in parallel, even if one of the pressure detecting devices in the same row detects pressure, the detection signal can be transmitted to the signal processing module 19, through setting up adjacent row's pressure measurement's vertical interval, then can improve the accuracy to the starting point location in the run-up direction.

Example 2:

this embodiment is optimized based on embodiment 1 described above.

In order to conveniently realize the observation of the starting point position, the pressure sensing dot matrix 2 is provided with a pedal protection pad 5, a starting line 6 is transversely arranged on the pedal protection pad 5, and the starting line is the starting line 6 which has higher naked eye identification degree and accords with the long jump rule.

Example 3:

this embodiment is optimized based on embodiment 2 described above.

In order to facilitate starting and protect the pressure sensing dot matrix 2, the pedal protection pad 5 is a thin-layer soft pad, the pedal base 1 is made of a hard wood board base material, and the area of the pedal protection pad 5 is the same as that of the hard wood board base material.

Example 4:

this embodiment is optimized based on embodiment 3 described above.

In order to realize the real-time feedback of data and facilitate the referee to obtain the starting information in time, the signal output end of the integrated circuit board 4 is connected with a display screen 7.

The signal processing module 19 records the nearest contact to the takeoff wire 6 as "vertical distance from the takeoff point to the takeoff wire 6" and displays it on the display 7 of the data terminal 3.

Example 5:

this embodiment is optimized based on embodiment 4 described above.

In order to realize the detection of the pressure, the pressure detection device comprises a contact switch 8, a metal spring piece 9 and a spring 10, wherein the metal spring piece 9 is positioned above the contact switch 8, the spring 10 is positioned between the metal spring piece 9 and the contact switch 8, and a plurality of contact switches 8 positioned on the same transverse row are connected in parallel and then transmit a detection signal to a signal processing module 19.

Specifically, the upper end of the spring 10 is defined at the end of the metal spring plate 9, the lower end of the spring 10 is opposite to the contact switch 8, and the contact switch 8 is in a normally open state in a non-pressure state.

The pressure sensing dot matrix 2 is connected with a power supply and data transmission interface 11, the data terminal 3 is provided with a data acquisition interface 12, and the power supply and data transmission interface 11 is connected with the data acquisition interface 12 through a cable and a data transmission cable 13.

Example 6:

this embodiment is optimized based on embodiment 5 described above.

In order to realize the power supply of the device and the information feedback and control operation, the data terminal 3 further comprises a lithium battery 14, a power supply switch 15, a clear button 16 and an alarm device 17 which are electrically connected with the integrated circuit board 4. In order to realize the prompt for the referee, the alarm device 17 is a buzzer.

Example 7:

this embodiment is optimized based on embodiment 6 described above.

For charging convenience, the data terminal 3 is further provided with a USB charging plug 18 for charging the lithium battery 14.

Example 8:

this embodiment is optimized based on embodiment 7 described above.

In order to facilitate starting, the thin-layer cushion is consistent with the area size of the pedal base 1, the width sizes of the pedal base 1 and the pedal protection pad 5 are both 300mm, the distance from the starting wire 6 to the front end of the pedal protection pad 5 is 100mm, and the distance from the starting wire 6 to the rear end of the pedal protection pad 5 is 200 mm.

Example 9:

this embodiment is optimized based on embodiment 8 described above.

In order to improve the accuracy of the starting point determination, the longitudinal distance between adjacent pressure detection devices is 5mm, and the transverse distance is 10 mm.

That is, with this design, the minimum distance that can be sampled in the run-up direction is 5 mm.

Specifically, the pressure sensing dot matrix 2 is composed of 7200 dot matrixes 60 × 120, the pressure sensing dot matrix 2 can measure a long jump score with the precision of 5mm, the long jump score of the existing competition rule is only accurate to 10mm, if the precision is further improved, the number of the pressure detection devices can be modified, each pressure detection device is provided with a contact switch 8 connected with the signal processing module 19, the contact switches 8 are in a normally open state under the action of the metal spring pieces 9 and the springs 10, the material stress and the service life of the contact switches meet the requirement of long jump competition, the contact switches are spaced by 5mm in the run-up direction and are spaced by 10mm in the transverse direction, the contact switches 8 in the transverse direction are connected in parallel, and the minimum distance for sampling in the run-up direction is 5 mm. When a long jump athlete triggers a plurality of contact switches 8 in a take-off area, the data terminal 3 collects and processes data, records the contact closest to the take-off wire 6 as the vertical distance from the take-off point to the take-off wire 6, and displays the vertical distance on the display screen 7 of the data terminal 3.

It should be noted that the pedal protection pad 5 is a thin protection layer soft pad covering the metal spring leaf 9 of the pressure sensing dot matrix 2, and since the area of the pedal protection pad 5 is the same as that of the hard wood board substrate, when a long jump athlete jumps, the pedal protection pad may cause local deformation, and may trigger the contact switch 8 around the jump point, which affects the sampling accuracy, and the triggered contact switch 8 may be only limited to the jump point by adjusting the elastic coefficients of the metal spring leaf 9 and the spring 10.

The working principle is as follows:

a judge holds the data terminal 3 by hand, turns on a power supply switch 15 of the data terminal 3, the pressure sensing dot matrix 2 and the circuit are electrified, the control circuit collects analog quantity signals of the pressure sensing dot matrix 2 in real time and converts the analog quantity signals into digital signals in real time, and the digital signals are displayed by the display screen 7, before the jump data is detected, the display screen 7 is not necessarily zero (the influence of factors such as zero drift of a sensor) at the moment, so that the reset button 16 is pressed, and the display screen 7 is reset; after the athlete jumps, part of the sensing elements of the pressure sensing dot matrix 2 deform under the action of the jump of the athlete, the deformed electric signals are transmitted to the integrated circuit board 4, the integrated circuit board 4 amplifies the voltage/current signals through the integrated circuit signals, converts A/D and CPU operation control processing, and finally displays the vertical distance value of the jump point from the jump wire 6 on the display screen 7, if the jump point is at the front end of the jump wire 6, the CPU operation result is a negative value, the display screen 7 displays a violation, the buzzer alarms and prompts a judge, if the jump point is at the rear end of the jump wire 6, the CPU operation result is a positive value, the display screen 7 displays the distance between the jump point and the jump wire 6, the value is the minimum value of the distance between all data points and the jump wire 6, namely, the point closest to the jump wire 6 is the jump point, and the judge can conveniently read the jump value of the display screen 7, the value can also be displayed to the audience, improving the enjoyment of the match.

The innovative design scheme is to provide a modern electronic take-off pedal for long jump sports, and has very important effects on promoting the development and progress of the long jump sports, providing fair and fair competition environment for long jump athletes, giving full play to the optimal competitive state of the athletes to the maximum extent, improving the appreciation of the long jump sports and the like.

In the above embodiments, the hard wood board substrate is made of a wood substrate with a length, a width and a thickness of 1220mm × 300mm × 100mm through antiseptic treatment, and the wood substrate may be hard miscellaneous wood such as cedar, beech and the like.

The data acquisition interface 12 of the data terminal 3 receives the electric signal output by the data transmission interface through a cable and a data transmission cable 13, the electric signal is transmitted to the integrated circuit board 4, the integrated circuit board 4 amplifies the voltage/current signal through the integrated circuit signal, A/D conversion and CPU operation control processing and finally displays the signal on the display screen 7, a judge can immediately judge the data of the jump and whether the fault occurs, if the fault occurs, the buzzer buzzes for alarm, the clear button 16 is pressed, the data of the display screen 7 is cleared for the next player to take off, after the competition is ended, the power supply switch 15 is pressed, the low-voltage lithium battery 14 is cut off, the power supply of the whole system is stopped, the power supply is restored again, and the USB charging plug 18 can charge the lithium battery 14.

In the working process of the electronic take-off pedal device, the pressure sensing dot matrix 2 is converted into a voltage/current signal by strain generated by the take-off of the athlete and transmits the voltage/current signal to the integrated circuit board 4, the integrated circuit signal is amplified, A/D conversion and CPU operation are carried out to judge which deformation point is closest to the take-off wire 6, the numerical value closest to the take-off wire 6 is finally displayed on the display screen 7 through logic operation processing, and a judge judges whether the athlete makes a foul and the game score by reading the numerical value of the display screen 7.

This technical scheme provides a novel take-off pedal device for in the match of various long jumps, and this novel electron take-off pedal device adopts dot matrix pressure sensing, can improve the accuracy nature of measuring the take-off point apart from 6 distances of take-off line.

In addition, the referee can quickly judge whether the take-off data and the athlete make a foul through the take-off pedal device, and the device has the function of automatically judging the foul.

The jumping pedal device is simple and compact in structure, convenient and safe to operate, beneficial to promoting development and progress of long jump sports, capable of providing fair and fair competition environment for long jump athletes and giving full play to the optimal competitive state of the athletes to the maximum extent, and very important in the aspects of improving appreciation of the long jump sports, the use of the zero clearing button 16 also greatly improves detection accuracy, the lithium battery 14 can be recycled for multiple times, the jumping pedal device can be directly inserted into a civil 220v power supply during charging, and charging is convenient.

The device can improve the accuracy of the long jump score of a long jump athlete, and the long jump score L of the athlete is the vertical distance from the floor point to the take-off wire 6 plus the vertical distance from the take-off point to the take-off wire 6.

After the long jump athlete runs in the run-up area, the long jump athlete can take a jump at any position in front of the take-off pedal take-off wire 6 and fall into the boundary line of the competition area of the sand pit, namely one-time trial jump is finished, and if the take-off foot of the athlete touches the take-off wire 6, the foul is considered. The pressure sensing dot matrix 2 transmits the electric signal to the handheld data terminal 3 through the cable and the data transmission cable 13, so that the use in different environments is facilitated.

The present invention is not limited to the above-mentioned optional embodiments, and any other products in various forms can be obtained by anyone under the teaching of the present invention, and any changes in the shape or structure thereof, all the technical solutions falling within the scope of the present invention, are within the protection scope of the present invention.

Claims (10)

1. An electronic take-off pedal device, characterized in that: including footboard device and data terminal, the footboard device includes footboard base and pressure measurement unit, pressure measurement unit includes pressure sensing dot matrix and signal processing module, the pressure sensing dot matrix is including setting up a plurality of pressure measurement on the footboard base, and a plurality of pressure measurement who is located same horizontal row transmits detected signal to signal processing module after parallelly connecting, data terminal includes integrated circuit board, signal processing module sets up on integrated circuit board.

2. An electronic take-off pedal device as defined in claim 1, wherein: the pressure sensing dot matrix is provided with a pedal protection pad, and the pedal protection pad is transversely provided with a jumper wire.

3. An electronic take-off pedal device as defined in claim 2, wherein: the pedal protection pad is a thin-layer soft pad.

4. An electronic take-off pedal device as defined in claim 1, wherein: and the signal output end of the integrated circuit board is connected with a display screen.

5. An electronic take-off pedal device as defined in claim 1, wherein: the pressure detection device comprises contact switches, a metal spring piece and springs, wherein the metal spring piece is located above the contact switches, the springs are located between the metal spring piece and the contact switches, and a plurality of contact switches located in the same transverse row are connected in parallel and then transmit detection signals to the signal processing module.

6. An electronic take-off pedal device as defined in claim 1, wherein: the data terminal also comprises a lithium battery, a power supply switch, a zero clearing button and an alarm device which are electrically connected with the integrated circuit board.

7. An electronic take-off pedal device as defined in claim 6, wherein: the alarm device is a buzzer.

8. An electronic take-off pedal device as defined in claim 6, wherein: and the data terminal is also provided with a USB charging plug for charging the lithium battery.

9. An electronic take-off pedal device as defined in claim 3, wherein: thin layer cushion is unanimous with footboard base area size, the width size of footboard base and footboard protection pad is 300mm, the distance of wire take-off line distance footboard protection pad front end is 100mm, the distance of wire take-off line distance footboard protection pad rear end is 200 mm.

10. An electronic take-off pedal device as defined in claim 1, wherein: the longitudinal distance between the adjacent pressure detection devices is 5mm, and the transverse distance is 10 mm.

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