CN205268972U - Discus - Google Patents

Abstract

The utility model belongs to the sport equipment field, in particular to discus. The utility model discloses a discus, including the discus body, its characterized in that, the centre of a circle department of discus body has a detection device, detection device includes sensor module, integrated circuit module and power, integrated circuit module includes signal amplification circuit, analog to digital conversion circuit and data transmission module, sensor module's output termination signal amplification circuit's input, signal amplification circuit's output termination analog to digital conversion circuit's input, the input of module converting circuit's output termination data transmission module, the power is connected with sensor module, signal amplification circuit, analog to digital conversion circuit and data transmission module respectively. The beneficial effects of the utility model are that, can the automatic acquisition javelin physical data of flight in -process to simple structure relies on the automatic completion of hardware circuit completely, has higher stability.

Description

A kind of discus

Technical field

This utility model belongs to sports equipment field, particularly to a kind of discus.

Background technology

Discus is a throwing event in track and field sports, and what discus motion used is weight, and during match, athlete is in the circle of diameter 2.5 meters, is thrown out by cake by rotating one hand. The principal element affecting discus cast includes release speed, angle of trajectory, height etc. of selling, at present, people can only rule of thumb judge this series of factor, and then modulation technique action, lack practical theoretical foundation, and it is simulated calculating the mode of these parameters by computer software after adopting shooting, and relatively costly, and practical application is very loaded down with trivial details; Additionally, when discus aloft moves, spectators cannot can be visually seen the flight speed of discus, the detail content such as angle, are typically only capable to learn last result, it is impossible to learn the data message in discus flight course, this is for the spectators of viewing discus motion, it appears very dry as dust.

Utility model content

To be solved in the utility model, it is simply that for the problems referred to above, it is proposed to a kind of can automatically to measure the discus of various physical datas in flight course.

The technical solution of the utility model is, a kind of discus, including discus body 1, it is characterised in that the circle centre position of described discus body 1 has detecting device 2, and described detecting device 2 includes sensor assembly, integrated circuit modules and power supply; Described integrated circuit modules includes signal amplification circuit, analog to digital conversion circuit and data transmission blocks; The input of the output termination signal amplification circuit of described sensor assembly, the input of the output termination analog to digital conversion circuit of described signal amplification circuit, the input of the output termination data transmission blocks of described module change-over circuit; Described power supply is connected with sensor assembly, signal amplification circuit, analog to digital conversion circuit and data transmission blocks respectively;

Described signal amplification circuit includes resistance the first resistance R1, the second resistance R2, the 3rd resistance R3, the 4th resistance R4, the 5th resistance R5, the 6th resistance R6, the 7th resistance R7, the 8th resistance R8, the first NMOS tube M1, the second NMOS tube M2, NMOS tube the 3rd NMOS tube M3, the 4th NMOS tube M4, the 5th NMOS tube M5, the 6th NMOS tube M6 and the seven NMOS tube M7; The drain electrode of the first NMOS tube M1 meets power vd D by the first resistance R1, and its grid connects the drain electrode of the second NMOS tube M2, and the source electrode of the first NMOS tube M1 passes through the second resistance R2 ground connection; The drain electrode of the second NMOS tube M2 meets power vd D by the 3rd resistance R3, and its grid connects the source electrode of the first NMOS tube M1, the source ground of the second NMOS tube M2; The input that junction point is signal amplification circuit of the first NMOS tube M1 source electrode, the second NMOS tube M2 grid and the second resistance R2;

The drain electrode of the 3rd NMOS tube M3 meets power vd D by the 4th resistance R4, and its grid connects the drain electrode of the 4th NMOS tube M4, and its source electrode passes through the 5th resistance R5 ground connection; The drain electrode of the 4th NMOS tube M4 meets power vd D by the 6th resistance R6, its source ground;

The drain electrode of the 5th NMOS tube M5 meets power vd D by the 7th resistance R7, and its grid connects the drain electrode of the 3rd NMOS tube M3; The drain electrode of the 6th NMOS tube M6 meets power vd D by the 8th resistance R8, and its grid connects the drain electrode of the first NMOS tube M1; The source electrode of the 5th NMOS tube M5 and the six NMOS tube M6 connects the drain electrode of the 7th NMOS tube M7 jointly; The grid of the 7th NMOS tube M7 connects the source electrode of the 3rd NMOS tube M3 and the grid of the 4th NMOS tube M4, its source ground; The outfan that junction point is signal amplification circuit of the 8th resistance R8 and the six NMOS tube M6.

The technical scheme that this utility model is total, it is on traditional discus architecture basics, at its circle centre position, sensor assembly is set, according to existing sensor technology, can directly adopt and can measure in discus flight course the sensor of various physical parameters to gather related data, then pass through after integrated circuit modules processes and carry out processing and sending, integrated circuit modules is provided with the signal amplification circuit for amplifying the signal of telecommunication and analog to digital conversion circuit and data transmission blocks, wherein signal amplification circuit for sensor acquisition to signal be amplified, so that analog to digital conversion circuit can identify accurately, what analog to digital conversion circuit adopted is common conventional analog-digital converter, no longer it is described in detail at this, data send modulus and can the data that analog to digital conversion circuit exports be transmitted, sampling wireless data should send modulus herein, there is more wireless data sending module on the market at present, this utility model can adopt any one as required, do not repeat them here. visible the technical solution of the utility model, hardware circuit is adopted to realize the collection of physical signalling in discus flight course completely, ensure that the promptness of data, than relying on image acquisition to add software, to carry out the mode of data process efficient much sooner, it is absent from latency issue, also there is higher stability simultaneously. discus of the present utility model only sends the signal receiver of signal with the acceptable discus of collocation, can obtain the physical message in discus flight course, then physical message be displayed, athlete and spectators can be made to obtain enough information.

Further, described sensor assembly includes linear velocity trans, angular-rate sensor, acceleration transducer and gyroscope.

The beneficial effects of the utility model are, it is possible to automatically gather the physical data in discus flight course, have higher real-time and simple in construction, fully rely on hardware circuit and be automatically performed, have higher stability.

Accompanying drawing explanation

Fig. 1 is the structural representation of this utility model discus;

Fig. 2 is the logical structure schematic diagram of integrated circuit modules and power supply;

Fig. 3 is the electrical block diagram of signal amplification circuit.

Detailed description of the invention

As it is shown in figure 1, discus of the present utility model, including discus body 1, it is characterised in that the circle centre position of described discus body 1 has detecting device 2, and described detecting device 2 includes sensor assembly, integrated circuit modules and power supply; Described integrated circuit modules includes signal amplification circuit, analog to digital conversion circuit and data transmission blocks; The input of the output termination signal amplification circuit of described sensor assembly, the input of the output termination analog to digital conversion circuit of described signal amplification circuit, the input of the output termination data transmission blocks of described module change-over circuit; Described power supply is connected with sensor assembly, signal amplification circuit, analog to digital conversion circuit and data transmission blocks respectively;

As it is shown on figure 3, described signal amplification circuit includes resistance the first resistance R1, the second resistance R2, the 3rd resistance R3, the 4th resistance R4, the 5th resistance R5, the 6th resistance R6, the 7th resistance R7, the 8th resistance R8, the first NMOS tube M1, the second NMOS tube M2, NMOS tube the 3rd NMOS tube M3, the 4th NMOS tube M4, the 5th NMOS tube M5, the 6th NMOS tube M6 and the seven NMOS tube M7; The drain electrode of the first NMOS tube M1 meets power vd D by the first resistance R1, and its grid connects the drain electrode of the second NMOS tube M2, and the source electrode of the first NMOS tube M1 passes through the second resistance R2 ground connection; The drain electrode of the second NMOS tube M2 meets power vd D by the 3rd resistance R3, and its grid connects the source electrode of the first NMOS tube M1, the source ground of the second NMOS tube M2; The input that junction point is signal amplification circuit of the first NMOS tube M1 source electrode, the second NMOS tube M2 grid and the second resistance R2;

The drain electrode of the 3rd NMOS tube M3 meets power vd D by the 4th resistance R4, and its grid connects the drain electrode of the 4th NMOS tube M4, and its source electrode passes through the 5th resistance R5 ground connection; The drain electrode of the 4th NMOS tube M4 meets power vd D by the 6th resistance R6, its source ground;

The drain electrode of the 5th NMOS tube M5 meets power vd D by the 7th resistance R7, and its grid connects the drain electrode of the 3rd NMOS tube M3; The drain electrode of the 6th NMOS tube M6 meets power vd D by the 8th resistance R8, and its grid connects the drain electrode of the first NMOS tube M1; The source electrode of the 5th NMOS tube M5 and the six NMOS tube M6 connects the drain electrode of the 7th NMOS tube M7 jointly; The grid of the 7th NMOS tube M7 connects the source electrode of the 3rd NMOS tube M3 and the grid of the 4th NMOS tube M4, its source ground; The outfan that junction point is signal amplification circuit of the 8th resistance R8 and the six NMOS tube M6.

Adopting linear velocity trans, angular-rate sensor, acceleration transducer and gyroscope with sensor assembly 2, data transmission blocks is bluetooth module is example, and operation principle of the present utility model is:

After discus is released, linear velocity trans, angular-rate sensor, acceleration transducer and gyroscope collect relevant physical data simultaneously, including the acceleration of discus, linear velocity, angular velocity and rotational speed signal, and at once the data collected are transferred to analog to digital conversion circuit by signal amplification circuit, because data You Ji road herein, it is thus desirable to adopt the modulus conversion chip of multichannel, multichannel modulus conversion chip has more matured product on the market, and this utility model repeats no more; After the analogue signal received is converted into digital signal by analog to digital conversion circuit, it is transmitted by data transmission blocks, data transmission blocks can adopt bluetooth module, its technical scheme is ripe, having more mature modules product, can directly select, its transmission range disclosure satisfy that the needs of discus, it is of course also possible to adopt RF module. After data send, need the equipment receiving this signal, carried out preserving and showing, in practice, computer equipment can being adopted to be equipped with related software data are processed, can arrange according to the actual requirements, this utility model provides only the discus that can send own physical data, these ancillary equipment are not described further, and those skilled in the art can adopt multiple implementation according to actual needs.

In this utility model, in order to ensure the effectiveness of data, in the signal amplification circuit adopted, resistance R1, R2, R3 and NMOS tube M1, M2 forms first order amplifying circuit, resistance R4, R5, R6 and NMOS tube M3, M4 forms mirror image circuit, resistance R7, R8 and NMOS tube M7, M8, M9 forms second level amplifying circuit, signal is effectively amplified by circuit of the present utility model by second amplifying circuit, make first order amplifying circuit keep consistent with the operating point of second level amplifying circuit also by mirror image circuit simultaneously, thus avoiding amplifying signal error occurs, ensure that the effectiveness of signal.

Claims (2)

1. a discus, including discus body (1), it is characterized in that, the circle centre position of described discus body (1) has detecting device (2), and described detecting device (2) includes sensor assembly, integrated circuit modules and power supply; Described integrated circuit modules includes signal amplification circuit, analog to digital conversion circuit and data transmission blocks; The input of the output termination signal amplification circuit of described sensor assembly, the input of the output termination analog to digital conversion circuit of described signal amplification circuit, the input of the output termination data transmission blocks of described module change-over circuit; Described power supply is connected with sensor assembly, signal amplification circuit, analog to digital conversion circuit and data transmission blocks respectively;

Described signal amplification circuit includes resistance the first resistance R1, the second resistance R2, the 3rd resistance R3, the 4th resistance R4, the 5th resistance R5, the 6th resistance R6, the 7th resistance R7, the 8th resistance R8, the first NMOS tube M1, the second NMOS tube M2, NMOS tube the 3rd NMOS tube M3, the 4th NMOS tube M4, the 5th NMOS tube M5, the 6th NMOS tube M6 and the seven NMOS tube M7; The drain electrode of the first NMOS tube M1 meets power vd D by the first resistance R1, and its grid connects the drain electrode of the second NMOS tube M2, and the source electrode of the first NMOS tube M1 passes through the second resistance R2 ground connection; The drain electrode of the second NMOS tube M2 meets power vd D by the 3rd resistance R3, and its grid connects the source electrode of the first NMOS tube M1, the source ground of the second NMOS tube M2; The input that junction point is signal amplification circuit of the first NMOS tube M1 source electrode, the second NMOS tube M2 grid and the second resistance R2;

The drain electrode of the 3rd NMOS tube M3 meets power vd D by the 4th resistance R4, and its grid connects the drain electrode of the 4th NMOS tube M4, and its source electrode passes through the 5th resistance R5 ground connection; The drain electrode of the 4th NMOS tube M4 meets power vd D by the 6th resistance R6, its source ground;

The drain electrode of the 5th NMOS tube M5 meets power vd D by the 7th resistance R7, and its grid connects the drain electrode of the 3rd NMOS tube M3; The drain electrode of the 6th NMOS tube M6 meets power vd D by the 8th resistance R8, and its grid connects the drain electrode of the first NMOS tube M1; The source electrode of the 5th NMOS tube M5 and the six NMOS tube M6 connects the drain electrode of the 7th NMOS tube M7 jointly; The grid of the 7th NMOS tube M7 connects the source electrode of the 3rd NMOS tube M3 and the grid of the 4th NMOS tube M4, its source ground; The outfan that junction point is signal amplification circuit of the 8th resistance R8 and the six NMOS tube M6.

2. a kind of discus according to claim 1, it is characterised in that described sensor assembly includes linear velocity trans, angular-rate sensor, acceleration transducer and gyroscope.