CN111854521B

CN111854521B - Arrow-shooting monitoring prompting device, system and method based on arrow pulling travel

Info

Publication number: CN111854521B
Application number: CN202010555685.1A
Authority: CN
Inventors: 鲁大兴; 毛硕超
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-06-17
Filing date: 2020-06-17
Publication date: 2022-09-20
Anticipated expiration: 2040-06-17
Also published as: CN111854521A

Abstract

The invention provides an archery monitoring prompting device, system and method based on an arrow pulling stroke, wherein the device comprises a sampling module, a prompting module and a control module: the sampling module and the prompting module are respectively and electrically connected with the control module; the sampling module is used for collecting motion information of the arrow shaft and transmitting the motion information to the control module; the control module is used for controlling the prompt module to send out prompt information according to the motion information. According to the invention, by acquiring, counting and analyzing the direction, speed, acceleration and the like of the arrow shaft in the arrow pulling stroke, an auxiliary training means about action consistency, strength continuity and technical stability in the sports archery technology is provided, so that the training efficiency and the athletic performance are improved.

Description

Arrow-shooting monitoring prompting device, system and method based on arrow pulling travel

Technical Field

The invention relates to the technical field of sports equipment, in particular to an archery monitoring prompting device, an archery monitoring prompting system and an archery monitoring prompting method based on an arrow pulling stroke.

Background

In the archery movement, the launching directivity of the arrow shaft, the aiming direction of the person and the initial kinetic energy generated by the arrow stroke during the bow drawing are not completely fixed by the instrument. The three are often called center line, line of sight, pull distance, wherein a special case of a compound bow can fix the pull distance and partially fix the line of sight. When the bow and arrow combination is properly adjusted, the dispersion deviation of the archery result is determined by the posture of the human body and the motion method for keeping the three, which is generally called the technical movement of the athlete. How to improve the consistency of training movements, the strength persistence and the technical stability becomes the key and difficult point of technical movement training. Therefore, in the classical conventional practice, a device for limiting the arrow stroke during the bow drawing is often used, the execution condition of the expected fixed action is checked by fixing the pull distance in combination with a large training amount, and the arrow is further taken as an arrow placing signal to be completed in place, so that the rhythm is consistent.

Various researches on archery sports at home and abroad are carried out, including physical training research, electromyographic signal analysis and attention analysis of athletes in the archery process, and technical action research of athletes by means of high-speed photography, velocimeters and the like. However, there are few studies regarding the distance the arrow is pulled and the speed at which the arrow is pulled. The distance of the arrow pulled and the speed of the arrow when the arrow is pulled are considered as a large technical element of archery movement, and the shooting result is determined according to the movement rhythm of the athlete. Therefore, data record analysis about the distance that the arrow is pulled and the speed when the arrow is pulled are recorded by the athlete at the shooting moment is very necessary.

Disclosure of Invention

In order to solve the technical problems, the invention provides an archery monitoring and prompting device, system and method based on an archery pulling stroke, which are used for recording and tracing, displaying graph curves, counting deviation, evaluating and checking, and enabling the data and the accuracy to be realized by acquiring the speed, the acceleration and the direction of a current arrow when a bow is pulled.

The embodiment of the invention provides an archery monitoring and prompting device based on an arrow pulling stroke, which is arranged on a bow handle of a bow and comprises a sampling module, a prompting module and a control module, wherein the sampling module comprises a sampling module body, a first driving module and a second driving module, and the first driving module comprises a first driving module, a second driving module, a third driving module, a fourth driving module and a fourth driving module, wherein the first driving module, the second driving module and the third driving module are respectively arranged on the sampling module and the second driving module:

the sampling module and the prompting module are respectively and electrically connected with the control module;

the sampling module is used for collecting motion information of the arrow shaft and transmitting the motion information to the control module;

the control module is used for controlling the prompt module to send out prompt information according to the motion information.

Preferably, the sampling module comprises an optical detection unit, a sampling fixing member and a detection unit connector;

the optical detection unit comprises an infrared light array and a visible light array; the infrared light array comprises an infrared light source array and an infrared light sensor array, and the visible light array comprises a strip-type visible light source and a strip-type visible light sensor; the arrow shaft is used for being arranged between the light paths formed by the infrared light source array and the infrared light sensor array and between the strip-shaped visible light source and the light paths formed by the strip-shaped visible light sensor;

the sampling fixing piece comprises an infrared light array transmitting arm for fixing the infrared light source array, an infrared light array receiving arm for fixing the infrared light sensor array, a visible light array transmitting arm for fixing the strip-type visible light source, a visible light array receiving arm for fixing the strip-type visible light sensor and a sampling support, wherein the infrared light array transmitting arm and the infrared light array receiving arm are oppositely arranged and are fixedly connected through the sampling support, and the visible light array transmitting arm and the visible light array receiving arm are oppositely arranged and are fixedly connected through the sampling support; the sampling support is further provided with a detection unit connector, and the detection unit connector is used for electrically connecting the control module and the optical detection unit.

Preferably, the sampling module further comprises a magnetoelectric sensor; magnetoelectric sensor set up in on the sampling support and with the arrow shaft sets up relatively, be used for gathering the displacement information of arrow shaft.

Preferably, the prompt module includes display element, vibrations unit and voice broadcast unit, the display element vibrations unit with the voice broadcast unit respectively with the control module electricity is connected to be controlled by respectively control module to send out display prompt, vibrations suggestion and voice prompt at the archery in-process.

Preferably, the archery monitoring and prompting device further comprises a base, a shell, an assembly mechanism, a battery component, a button component and a transceiving antenna;

the base is used for being installed on the bow handle, and the sampling module is arranged between the base and the shell;

the assembly mechanism is arranged between the base and the shell, and the control module and the battery component are both arranged on the assembly mechanism; the display unit, the button assembly and the receiving and transmitting antenna are all arranged on the shell, and the vibration unit and the voice broadcasting unit are all arranged in the shell;

the shell is provided with a fixing hole and is respectively fixed with the assembly mechanism and the base through the fixing hole and the fixing piece.

Preferably, the base comprises a body and a shock pad, the body is provided with a mounting hole, the body is fixed with the sighting device base through the mounting hole and the mounting piece, and the shock pad is arranged between the bow handle and the body.

Archery monitoring prompt device still includes thickness adjustment piece and/or horizontal adjustment mechanism, the thickness adjustment piece sets up the body with between the shell, horizontal adjustment mechanism sets up the shell with on the detecting element connector, the thickness adjustment piece and/or horizontal adjustment mechanism is used for the adjustment sampling module with lateral distance between the arrow shaft.

The base with the thickness adjustment piece corresponds and is formed with along the perpendicular to the track groove that bow handle direction extends, the track groove is used for adjusting the sampling module with the lateral distance between the arrow shaft.

The embodiment of the invention also provides an archery monitoring and prompting system based on the arrow pulling stroke, which comprises:

the archery monitoring and prompting device based on the arrow pulling stroke in any one of the embodiments; and

and the management terminal is in communication connection with the archery monitoring prompt device and is used for receiving the motion information of the arrow shaft sent by the control module and analyzing the motion information, and feeding back an analysis result to the control module so as to control the prompt module to send out the prompt information.

Preferably, the archery monitoring and prompting system further comprises an automatic communication device, the automatic communication device comprises a master communication module and a slave communication module, the master communication module is wirelessly connected with the slave communication module, and the slave communication module is integrated on the archery monitoring and prompting device so that the master communication module is in communication connection with the control module; the main communication module comprises a computer and is used for receiving the motion information of the arrow shaft sent by the control module and forwarding the motion information of the arrow shaft to the management terminal.

The embodiment of the invention also provides an archery monitoring and prompting method based on the arrow pulling stroke, which is applied to the archery monitoring and prompting system based on the arrow pulling stroke; the method comprises the following steps:

collecting motion information of an arrow shaft by the sampling unit, wherein the motion information comprises the direction, the track and the speed of the arrow shaft;

analyzing, by the control module, the motion information to preliminarily determine a motion state of the arrow shaft, the motion state including a normal state or an abnormal state;

when the archery action in the abnormal state is determined, controlling the prompt module to send out an error prompt, wherein the current motion information is not recorded in a database of the management terminal;

and when the arrow shooting action in the normal state is determined, controlling the prompt module to give a correct prompt, and recording the state information of the arrow shaft into the database of the management terminal so as to provide visual data analysis, statistics and tracing.

Preferably, after controlling the prompt module to give a correct prompt and recording the state information of the arrow shaft into the database of the management terminal when the arrow shooting action in the normal state is determined, the method further comprises:

the control module compares and corrects the position of the arrow tip and calculates a reference point in the process of pulling the arrow shaft to obtain the distance from the arrow tip to the reference point of the equipment, and the reference point is calculated according to the position parameters of the athlete and the installation position parameters of the equipment to convert the distance into corresponding pull distance;

calculating the motion speed of the arrow shaft according to the corresponding time point of the distance, and calculating the speed and the speed change rate of the adjacent preset time point to obtain the acceleration and the arrow shaft direction of the motion of the arrow shaft;

recording the pull distance, the speed, the acceleration and the direction of arrow shaft movement into a database of the management terminal, and displaying the change of the motion state of the arrow shaft along with time through a visual table and a visual change curve;

tracing the full-arch pull distance suitable for the sportsman according to the self-evaluation log input by the management terminal, and processing the full-arch pull distance to output a template curve of action rhythm;

marking prompt points of the template curve according to the personal log and coach opinions input by the management terminal and the characteristics of archery actions of athletes;

and adjusting the prompt information of the prompt module according to the prompt point.

The embodiment of the invention has the following beneficial effects:

according to the archery monitoring and prompting device, the archery monitoring and prompting system and the archery monitoring and prompting method based on the arrow pulling stroke, the device, the system and the method in the embodiment are used for training, have high contact ratio with the existing fixed-pull-distance training, are simple and easy to use, and are beneficial to acceptance and popularization; the camera environment does not need to be arranged or equipment is not arranged on the body, so that the technical monitoring is more comfortable and natural and is objectively implemented. The system in the embodiment can set the prompting time and the prompting method according to the expected fixed action characteristics, and the setting of the prompting time and the prompting method tends to be reasonable through monitoring and evaluation. The trajectory, speed, acceleration and direction of the current arrow when the bow is pulled can be obtained, and recording and tracing, graph curve display, deviation statistics, evaluation and inspection, and data and accuracy of the current arrow can be realized. The personal technical template can be manufactured on the basis, training assistance is carried out, the workload of a coach is reduced, and the coach can exert personal style and technical characteristics in the establishment, calibration and prompt setting of the technical template, so that the training device is simple and easy to use and is flexible to operate.

Drawings

FIG. 1 is a schematic structural diagram of an archery monitoring and prompting device based on an arrow pulling stroke according to an embodiment of the present invention;

FIG. 2 is another schematic structural diagram of an archery monitoring and prompting device based on an arrow pulling stroke according to an embodiment of the invention;

FIG. 3 is a schematic structural diagram of a sampling module in an arrow-based archery monitoring prompting device according to an embodiment of the present invention;

FIG. 4 is a schematic structural diagram of an archery monitoring and prompting system based on an arrow pulling stroke according to an embodiment of the present invention;

FIG. 5 is a schematic flow chart of an archery monitoring prompting method based on an arrow pulling stroke according to an embodiment of the present invention;

FIG. 6 is a flowchart illustrating another archery monitoring prompting method based on an arrow pulling stroke according to an embodiment of the present invention.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Next, the present invention is described in detail by using schematic diagrams, and when the embodiments of the present invention are described in detail, the schematic diagrams are only examples for convenience of description, and the scope of the present invention should not be limited herein.

Referring to fig. 1-2, an embodiment of the invention provides an archery monitoring and prompting device 100 based on an arrow pulling stroke, where the device 100 includes a base 1, a housing 3, a sampling module 5, a prompting module, and a control module.

The base 1 is used for being installed on a bow handle 2 of an arrow, the sampling module 5 and the control module are arranged between the base 1 and the shell 3, and the prompting module is arranged on the shell 3. The sampling module 5 with the prompt module respectively with the control module electricity is connected, sampling module 5 is used for gathering the motion information of arrow shaft 21, and transmits to control module, control module is used for the basis motion information control prompt module sends prompt information.

Preferably, the base 1 is embodied in combination with a recurve bow, using the internationalized shank assembly (ILF) standard of the bow and arrow instrument manufacturer, or the manufacturer's equivalent thereof, to draw up a threaded bore diameter and position fixation.

As shown in fig. 2-3, the sampling module 5 preferably includes an optical detection unit, a sampling fixture, and a detection unit connector 38.

The optical detection unit comprises an infrared light array and a visible light array; the infrared light array comprises an infrared light source array and an infrared light sensor array, and the visible light array comprises a strip-type visible light source and a strip-type visible light sensor; the arrow shaft 21 is used for being arranged between the infrared light source array and the light path formed by the infrared light sensor array, and between the strip-shaped visible light source and the light path formed by the strip-shaped visible light sensor.

The sampling fixing piece comprises an infrared light array transmitting arm 51 for fixing the infrared light source array, an infrared light array receiving arm 52 for fixing the infrared light sensor array, a visible light array transmitting arm 53 for fixing the strip-type visible light source, a visible light array receiving arm 54 for fixing the strip-type visible light sensor and a sampling support 56, wherein the infrared light array transmitting arm 51 and the infrared light array receiving arm 52 are oppositely arranged and are fixedly connected through the sampling support 56, and the visible light array transmitting arm 53 and the visible light array receiving arm 54 are oppositely arranged and are fixedly connected through the sampling support 56. The sampling support 56 is further provided with the detection unit connector 38, and the detection unit connector 38 is used for electrically connecting the control module and the optical detection unit.

In one embodiment, the shielding operation of the optical detection unit makes it insensitive to small distance variations, and can tolerate small errors in distance variations, such as the transmit or receive array and the arrow shaft 21 not being perfectly parallel, and such as the test object being unequally spaced from the transmit and receive arrays.

As shown in fig. 2, in an embodiment, the circuit board 41 of the infrared light array transmitting arm 51 is densely arranged in a straight line shape at the position of the infrared light element as an infrared light transmitting end, and the photocell elements with geometric positions matching with one another in a mirror image manner on the infrared light array receiving arm 52 as an infrared light receiving end, and the parallel infrared light array transmitting arm 51 and the infrared light array receiving arm 52 form a detection plane, and scan point by point to detect the occlusion. The infrared lamp elements can be arranged in one row or multiple rows, multiple rows of infrared lamp elements can share a circuit board or be spliced in a modularized mode, and the infrared lamp elements can be staggered front and back to be installed in a W shape or a zipper shape so as to improve the minimum measuring range and identify the deflection of the arrow shaft 21, but the width of the infrared lamp elements cannot exceed the limit comprehensively caused by the factors of the thickness, the material, the light source wavelength, the diffraction property and the transmitting and receiving distance of the arrow shaft 21. Preferably, the distance between two adjacent rows of the W-shaped infrared lamp components in the present embodiment is 2.0mm, so as to realize a low-cost component packaging size and an automatic production process.

In one embodiment, the visible array emitting arm 53 comprises a stripe-type visible light source and an electronic driving device, a light-condensing reflecting bowl; the visible light array receiving arm 54 is provided with a strip visible light sensor and an electronic driving device, and a condensing micro lens group 39; the strip-type visible light sensor adopts CCD or COMS, the sampling, jitter elimination algorithm and error reduction measure of a sensor dot matrix are optimized by line-by-line scanning of a strip short edge, the deviation of the arrow shaft 21 is identified by line-by-line scanning of a long edge, and the change of shielded direct light is uniformly captured. While the present embodiment records direct light from a light source, a silhouette type image with a high signal-to-noise ratio can be obtained. The identification circuit processes the image into three colors of black, white and grey which is caused by edge diffraction and is not credible according to a threshold range R, wherein the threshold range R is obtained by a device production debugging step using a measuring tool, and finally, a distance signal of an arrow position is output instead of a dot matrix signal (bitmap or video) by evaluating the continuity and the number of pixel points so as to reduce the cost, the calculation storage requirement and the power consumption.

In one embodiment, the long axes of the infrared array and the visible array transmit and receive arrays are parallel to each other to form a generally vertical detection plane, which in this embodiment is angled about the long axis of the arrow shaft 21 to form a deflection intersection angle α 23 with the plumb line and the generally vertically held bow 2. Adjusting the module to accommodate different bows and arrows in order to enable the long axes of the infrared array and the visible light array to be aligned with the arrow shaft centerline; preferably, the arrow shaft 21 adjusts the deflection angle α 23 under the infrared array and the visible light array to reduce the shielding influence measurement of the soundchip 22, wherein the deflection angle α 23 is specifically determined by the deformation, length and installation position of the soundchip 22.

It should be noted that the optical detection unit does not capture the very fine position of the arrow tip exactly, because the arrow is usually worn out unevenly through use, the arrow cutting accuracy is limited, and a small deviation is considered acceptable in the classical sonotrode technology. Accordingly, by placing the arrow to be measured, the arrow shaft 21, on the range of the device and inputting the desired position, or accurately placing an arrow of known position on the device and pressing the input button, this error can be eliminated by reference, and the present embodiment is described as using this principle to implement the calibration function.

In one embodiment, the detection is performed using an optical detection unit, which is known to be susceptible to external interference, including sunlight and infrared, ambient light and infrared, and other devices used simultaneously beyond the expected 2.0 meters. In the embodiment, the grating, the optical filter and the light blocking sheet are used as external control measures and the installation position of the detector, so that interference treatment is implemented. Other known rational or emerging ways are also possible, such as non-conventional element emission wavelength and encoding frequency control.

As shown in fig. 2, the sampling module 5 preferably further comprises a magnetoelectric sensor 55. The magnetoelectric sensor 55 is disposed on the sampling support 56 and is disposed opposite to the arrow shaft 21, and is configured to collect displacement information of the arrow shaft 21.

In one embodiment, the magnetoelectric sensor 55 is a Hall displacement sensor, and is mounted at the position of the conventional clicker extension rod 20, i.e., near the arrow near the back of the full bow. The Hall displacement sensor is a short-range giant magnetoresistance sensor based on a magnetic detection principle, a three-dimensional displacement signal is formed by cutting a magnetic induction line, and the three-dimensional displacement signal is further calculated as a linear distance according to a known parallel distance L. The measuring range is usually within 1cm, and the measuring range is used for specially capturing the fine movement of the last segment of the pantograph.

It can be understood that the magnetoelectric sensor 55 is a hall displacement sensor, and since the magnetic strength and the displacement of the object to be measured both have an influence on the original electric signal, the arrow using the stainless steel or the tungsten alloy charged with weak magnetism corresponds to general training, and the arrow using the permanent magnet corresponds to research use. The hall sensor does not interfere with the movement of the castors 22, since the castors 22 are typically materials with a small magnetic flux, such as steel containing copper or carbon fiber materials.

In one embodiment, under the premise that FOC (Front Of Center, which is the gravity Center position Of the arrow shaft, the length from the Center point Of the arrow shaft length, and the length is a percentage Of the total length Of the arrow shaft) Of the arrow is controllable, the external parameters influencing the archery precision are controllable, the embodiment embeds a columnar permanent magnet in a hollow ordinary arrow shaft, uses an original arrow, and calibrates the original data Of a detector in advance by a known distance, so that the output result is mapped to the movement Of the arrow head. The data obtained by the sampling module 5 are used independently or checked and referred to each other, so that the adaptability, the precision and the reliability of the data are improved. The design parameters of the device are controlled to collect the displacement formed by the open bow of the athlete, the high-speed displacement during launching is not involved, and the shaking which is generated by the physical activity of the athlete and the external environment and can be tolerated by the technical requirements of archery is eliminated.

Preferably, the sampling module 5 is configured to collect an original data signal of the movement of the arrow shaft 21, and the signal is converted into a specific data format through a hardware circuit and a programmable single chip Microcomputer (MCU) in the assembly mechanism 4, and is output in multiple ways.

Preferably, the prompt module includes display element, vibrations unit 36 and voice broadcast unit 34, the display element vibrations unit 36 with voice broadcast unit 34 respectively with the control module electricity is connected, and is controlled by respectively control module to send out display prompt, vibrations suggestion and voice prompt at the archery in-process.

As shown in fig. 2, in one embodiment, the display unit includes a warning light 32, a micro lens set 39 with waterproof light gathering function and a digital dot matrix display 33, the vibration unit 36 is a built-in electromagnetic trigger, and the voice broadcasting unit 34 includes a speaker and a waterproof membrane hole 35. The electromagnetic type trigger can replace the vibration and the sound of the soundchip 22, and is used for simulating athletes which cannot use the soundchip or replacing the soundchip in training.

In one embodiment, as the device is used, the dot-matrix display 33 displays its specific value as the arrow begins to enter the range of the sampling module 5, which is expressed in english units and provides metric unit conversion, as the device is pulled out. When passing through 8-16 known freely arranged travel checkpoints, the indicator light 32 gradually lights up in a strip, the color of which can be freely defined, preferably, defined as not related to the colors other than yellow, red, blue of the target surface. Meanwhile, as the position of the arrow passes the check point, the voice broadcast unit 34 plays a monotone tone of a constant loudness, the tone of which changes. The sound played by the voice broadcasting unit 34 is amplified by the pre-stored recording or the instantly generated electronic sound of the device to a loudspeaker or a buzzer for implementation. The number of check points is also only understood by the reader, and is not limited by the performance and application conditions of the present invention, and the inventor only considers that the number is suitable for the technical scheme.

In one embodiment, the display unit and the voice broadcasting unit 34 respectively use a tricolor diode (RGB-LED) and a buzzer sound (Beep) formed by an oscillator circuit, which is not a limitation of the present invention, and for example, an organic light emitting semiconductor (OLED) light indication, and a musical instrument digital interface signal (MIDI) sound may also be used.

As shown in fig. 2, the archery monitoring and prompting device 100 preferably further includes an assembly mechanism 4, a battery component, a button component 31 and a transceiver antenna 37. The assembly mechanism 4 is arranged between the base 1 and the shell 3, and the control module and the battery component are both arranged on the assembly mechanism 4. The display unit, the button assembly 31 and the transceiving antenna 37 are all arranged on the shell 3, and the vibration unit 36 and the voice broadcasting unit 34 are all arranged in the shell 3.

Preferably, the battery assembly includes a battery 43, a shock resistant battery compartment 44, and a desiccant pod 45.

The shell 3 is provided with a fixing hole, and the shell 3 is respectively fixed with the assembly mechanism 4 and the base 1 through the fixing hole and the fixing piece.

Preferably, the archery monitoring and prompting device 100 is a highly integrated power supply, control, wireless transmission data and user basic input and output, and a control system of the assembly mechanism 4 adopts a programmable single chip microcomputer STM32F4 and a hardware circuit to convert original data signals of motion of the arrow shaft 21 acquired by the sampling module 5 into data information in a specific data format for multi-mode output.

Preferably, the base 1 includes a body 12 and a shock pad 11, the body 12 is opened with a mounting hole, the body 12 is fixed with a sighting device base 25 (shown in fig. 1) through the mounting hole and the mounting piece, and the shock pad 11 is used for being arranged between the bow 2 and the body 12.

Preferably, the body 12 provides support for the assembly mechanism 4, and is made of metal, carbon fiber or glass fiber material.

Preferably, the shock pad 11 is made of laser thin polytetrafluoroethylene or silica gel and is attached to one surface of the base 1 contacting the bow handle 2.

Archery monitoring prompt device 100 still includes thickness adjustment piece 13, thickness adjustment piece 13 sets up body 12 with between the shell 3, be used for the adjustment sampling module 5 with the lateral distance between the arrow shaft 21.

Preferably, the thickness adjusting block 13 is made of light materials with various thickness combinations, so that the density temperature coefficient can be extremely small.

Preferably, the body 12, the housing 3 and the thickness adjusting block 13 are connected by screws 14, so that they can be easily disassembled for maintenance.

Preferably, the archery monitoring and prompting device 100 further comprises the horizontal adjustment mechanism 57 disposed on the housing 3 and the detection unit connector 38 to more precisely adjust the lateral distance between the sampling module 5 and the arrow shaft 21 when necessary.

Preferably, the horizontal adjusting mechanism 57 is an adjusting mechanism for aligning the long axis of the optical detector with the axial direction of the arrow shaft 21, and specifically, a sliding mechanism is composed of a lead screw, a slider and other mechanical components, and is used for adjusting the left and right horizontal movement of the sampling module 5 to align the arrow shaft 21, so that the arrow shaft 21 can indeed block the infrared ray or visible light emitted by the sampling module 5, and the array receiving arm of the sampling module 5 can accurately detect the displacement.

The base 1 with thickness adjustment piece 13 corresponds and is formed with along the perpendicular to the track groove 16 that bow 2 direction extends, track groove 16 is used for adjusting sampling module 5 with the lateral distance between the arrow shaft 21, thickness adjustment piece 13 with track groove 16 makes sampling module 5 can aim at the side direction of arrow shaft 21 in real time. The horizontal adjustment mechanism 57 enables the sampling module 5 to be aligned in real time in the lateral direction of the arrow shaft 21.

Preferably, the device is compatible with the following commonly known accessory attachments of arches: a side rear arrow rest 24, a sighting device base 25 and an arrow side pad 26 are connected with the archery monitoring and prompting device 100, or at least the original installation position or the movement range of the archery monitoring and prompting device is not influenced; and can be directly arranged on the stable base 1 by the original screw or thread, and the original center line and the aiming line of the bow can be recovered after being properly adjusted.

Referring to fig. 4, an embodiment of the present invention further provides an archery monitoring and prompting system based on an arrow pulling stroke, including: foretell archery monitoring prompt device 100 and management terminal 201 based on arrow pulling stroke, with archery monitoring prompt device 100 communication connection for receive the motion information of the arrow shaft 21 that control module sent, and be used for the analysis motion information to and with analysis result feedback extremely control module, in order to control prompt module sends out prompt information.

In one embodiment, in order for those skilled in the art to understand that archery training is typically performed by multiple persons together, the associated devices should be easy to work in parallel at the same time.

It can be understood that, in this embodiment, the management terminal 201 further includes: part of the functions and software and hardware interfaces, using a desktop or portable Personal Computer (PC) as a platform for human-computer interfaces and general protocols, and based on Microsoft Windows or Linux from open source, or the IOS system platform from apple Inc. However, the embodiment is not limited to the management terminal 201, for example, the management terminal 201 may also be a smart phone or a tablet computer based on google android or apple IOS operating system platform. Further, the exact definition between the management terminal 201 and the communication environment is to use a hardware interface that can be unified, preferably cost-effective and stable.

Referring to fig. 4, preferably, the archery monitoring and prompting system further includes an automatic communication device 210, the automatic communication device includes a master communication module 211 and a slave communication module 212, the master communication module is wirelessly connected with the slave communication module, and the slave communication module is integrated on the archery monitoring and prompting device 100, so that the master communication module is communicatively connected with the control module. The main communication module comprises a computer and is used for receiving the motion information of the arrow shaft 21 sent by the control module and forwarding the motion information of the arrow shaft 21 to the management terminal 201.

In one embodiment, the control system in the automatic communication device adopts an STM32F4 chip and a bare machine without a system, the internal data interface is an SPI, the wireless hardware adopts a 2.4G radio frequency module as an interface, and the control system is located on the circuits of the slave machine 212 and the independent communication host machine 211 integrated with the monitoring and prompting device 100 based on a certain type of NRF240 digital chip module, the working interval of the control system allows tens of meters, and the control system can wirelessly transmit data to the management terminal 201 at a frequency of 20 hertz (Hz) or higher and a number of bytes per time of 32 bytes (Byte) or higher. The communication mode is simplex, time-sharing polling and calling-answering type, and the communication network is organized by using address and frequency division. The wired hardware adopts URAT and RS232 level conversion serial ports, and is connected with the management terminal 201 in a one-to-one mode. The hardware description and performance data described above are not limitations of the invention, for example wireless may also include 1.0Ghz band radio frequency communication, bluetooth connection, or WIFI connection. The cabling may also include USB and USB-HID interface protocols, local area networks, and TCP/IP interface protocols. The inventors regard only the features of this embodiment as typical and readily understood by those of ordinary skill in the relevant art.

It should be noted that, in the environment before the arrow is placed, the arrow and the person are basic elements, and the technical term is often called as an internal environment, which is not separable. Classical conventional grip limiting means include: such as a clicker of a reverse bow, a fixed pull distance device-rear wall (back-wall) of a compound bow, a tail of an arrow head or a binding band, a convex ring, a notch and the like of an arrow rod 21 of a traditional bow or a hunting bow for forming finger touch with the aim of determining the pull distance, the classical and conventional pull distance limiting means are also ubiquitous in the archery movement for a long time, and the design of the embodiment can also provide data reference for the means, mainly trace back and statistical evaluation from original data and related records, and provide technical reference for a reasonable pull distance value to be fixed.

Based on the embodiment, the system can be used for mastering the fluctuation and development trend of the personal technical action on the arrow displacement stroke in a data-based mode, collecting, sorting, analyzing, evaluating, storing, tracing, adjusting and managing in a data-based and visual mode, and providing closed-loop data and evaluation support for adjusting the personalized setting parameters.

Referring to fig. 5, an embodiment of the present invention further provides an archery monitoring and prompting method based on an arrow pulling stroke, which is applied to the archery monitoring and prompting system based on an arrow pulling stroke.

The method comprises the following steps:

step S101, collecting motion information of the arrow shaft 21 by the sampling unit, wherein the motion information comprises the direction, the track and the speed of the arrow shaft 21.

Step S102, the control module analyzes the motion information to preliminarily determine the motion state of the arrow shaft 21, wherein the motion state includes a normal state or an abnormal state.

Step S113, when it is determined that the archery action is in the abnormal state, controlling the prompting module to issue an error prompt, and the current motion information is not recorded in the database of the management terminal 201.

Step S103, when the arrow shooting action in the normal state is determined, the prompt module is controlled to give a correct prompt, and the state information of the arrow shaft 21 is recorded in the database of the management terminal 201, so that visual data analysis, statistics and tracing are provided.

Preferably, after controlling the prompting module to give a correct prompt and recording the state information of the arrow shaft 21 into the database of the management terminal 201 when the arrow shooting action in the normal state is determined, the method further comprises the following steps.

And step S104, comparing and correcting the position of the arrow point part and calculating a reference point by the control module in the pulling process of the arrow shaft 21 to obtain the distance from the arrow point part to the reference point of the equipment, and calculating the reference point of the distance by combining the position parameters of the athlete and the installation position parameters of the equipment so as to convert the distance into a corresponding pull distance.

Step S201, calculating the motion speed of the arrow shaft 21 according to the corresponding time point of the distance, and calculating the speed and the speed change rate of the adjacent preset time point to obtain the motion acceleration of the arrow shaft 21 and the direction of the arrow shaft 21; the pull distance, the speed, the acceleration and the direction of the arrow shaft 21 movement are recorded into a database of the management terminal 201, and the change of the movement state of the arrow shaft 21 along with the time is displayed by displaying a visual table and a change curve.

Step S202, tracing back the full-arch pull distance suitable for the movement staff according to the self-evaluation log input by the management terminal 201, and processing the full-arch pull distance to output a template curve of the movement rhythm.

Step S203, marking the prompt points of the template curve according to the personal log and the coach opinion input by the management terminal 201 and the characteristics of the archery action of the athlete.

And S204, adjusting the prompt information of the prompt module according to the prompt point.

Between step S104 and step S201, the method further comprises step S105 of outputting visual cues, audible cues and fiducial distance using the athlete parameters, the device fiducial, the cue scheme.

Referring to fig. 6, an embodiment of the present invention further provides another archery monitoring and prompting method based on an arrow pulling stroke, which is applied to the archery monitoring and prompting system based on an arrow pulling stroke.

The method comprises the following steps:

in step S301, the optical detection unit of the monitoring and prompting device 100 identifies the normal state "Y" in each conventional stage of the archery action, and identifies the state "N" in which the special case is manually retracted, removed, dropped, or deflected and does not conform to the monitoring kit.

And step S302, when the step S301 identifies N, eliminating the influence on the validity, the integrity and the prompt correctness of the data, and giving a prompt for interrupting the training.

And step S303, when the arrow is identified as Y in the step S301, monitoring the pulled movement of the arrow by the sampling unit, comparing and correcting the position of the arrow tip, calculating the reference point, and outputting the distance from the arrow tip to the reference point of the equipment.

In step S304, the monitoring and prompting device 100 uses the following input in advance: the distance is calculated through standard conversion and identified through table look-up, the distance of the reference point is output, and visual and auditory prompts are output.

The monitoring and prompting device 100 and the management terminal 201 are connected through the automatic communication device 210;

step S306, the management terminal 201 calculates and outputs the speed using the time points of the distance, and calculates and outputs the acceleration and the direction for the obtained speed and the change rate at a plurality of corresponding time points.

In step S307, the management terminal 201 displays a visual table and a change curve for the movement speed, acceleration, direction, and time axis of the arrow shaft, and changes the arrow stroke with time, that is, converts the motion rhythm of the personal skill into data.

Step S308, the management terminal 201 manually inputs the self-evaluation log to trace the proper full-bow stretch distance of the athlete; averaging and subtracting results for multiple times, and outputting a sample curve of the motion rhythm; manually inputting instruction suggestions of a coach, combining personal feelings, and finely adjusting the tolerance range; the specific points of the curve are marked in conjunction with the characteristics of each stage of the personal technical action, and the prompting scheme of the visual and sound prompts output by the monitoring and prompting device 100 is adjusted accordingly.

Step S309, the management terminal 201 outputs the prompting scheme to the monitoring prompting device 100 through the automatic communication device 210, so as to adjust in a closed loop manner and provide positive excitation or error prompt for the arrow shaft pulling position and rhythm; and the human-computer interface is used for further outputting visual data analysis, statistics and tracing to the adjustment and adaptation process.

And S310, outputting and storing complete training records by the human-computer interface in combination with the manually input target falling scores, target falling points, self-evaluation logs and the coach opinions.

And step S311, custom-defined music or recording is input in a custom way, and prompt tones are output to the earphones of the user by using a wireless transmission means for monitoring by a coach or self-testing by athletes. Optionally, the horn of the monitoring and prompting device 100 is turned off.

It should be understood by those skilled in the art that the above steps are only a summary of the core methods for achieving the objects of the present invention without inventively realizing the objects to be achieved, but do not contain all the steps and logic of the common general knowledge or the common general knowledge in the art; also, other steps or embodiments may be applied to the above steps in order to achieve the desired objects of the present invention, or to optimize the improvements.

Preferably, in step S305, the sampling frequency F of the detection unit is acquired. This frequency is in this embodiment derived from a programmable single-chip Microcomputer (MCU) or a crystal oscillator of a desktop computer (PC) or a command loop whose execution time can be predicted, as a basis for the calculation of a physical quantity with a time dimension, such as speed.

Preferably, the main communication module 211 in an embodiment of the present invention is preferably used after the determination of the condition of the automation communication device 210 required between step S304 and step S305, for example, after the multi-machine networking is identified as "Y" in step S301, so as to advantageously increase the number of nodes and the bandwidth that can be supported by the system. Each step can be realized by using different carriers, and different data transmission modes can be used between each step, such as copying original data to another computer or carrying out subsequent calculation by network transmission. For the sake of brevity, similar reference to common general knowledge or obvious parts will not be described in detail.

The archery monitoring and prompting method based on the arrow pulling travel in the embodiment can be combined with the related system for realizing one of the purposes of the invention, so that the personal parameters and the prompting scheme of the athlete can be better determined. The method can be used for accurately grasping the fluctuation and development trend of personal technical action, automatically giving reference opinions according to set deviation capture and tolerance range, and accordingly improving training level and reducing work intensity of coaches.

While the foregoing is directed to the preferred embodiment of the present invention, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention.

Claims

1. The utility model provides an archery monitoring suggestion device based on arrow pulling stroke, a serial communication port, archery monitoring suggestion device sets up on the bow of bow, including sampling module, suggestion module and control module:

the control module is used for controlling the prompt module to send prompt information according to the motion information;

the sampling module comprises an optical detection unit, a sampling fixing piece and a detection unit connector;

the optical detection unit comprises an infrared light array and a visible light array; the infrared light array comprises an infrared light source array and an infrared light sensor array, and the visible light array comprises a strip-type visible light source and a strip-type visible light sensor; the arrow shaft is used for being arranged between the light paths formed by the infrared light source array and the infrared light sensor array and between the light paths formed by the strip-shaped visible light source and the strip-shaped visible light sensor;

2. The arrow pull stroke based archery monitoring prompt device according to claim 1, wherein the sampling module further comprises a magnetoelectric sensor; magnetoelectric sensor set up in on the sampling support and with the arrow shaft sets up relatively, be used for gathering the displacement information of arrow shaft.

3. The archery monitoring and prompting device based on the arrow pulling stroke according to claim 1, wherein the prompting module comprises a display unit, a vibration unit and a voice broadcasting unit, the display unit, the vibration unit and the voice broadcasting unit are respectively electrically connected with the control module and respectively controlled by the control module to send out display prompts, vibration prompts and sound prompts in the archery process.

4. The arrow-pulling-stroke-based archery monitoring and prompting device according to claim 3, further comprising a base, a housing, an assembly mechanism, a battery assembly, a button assembly and a transceiver antenna;

5. The arrow pulling stroke based archery monitoring and prompting device according to claim 4, characterized in that the base comprises a body and a shock pad, the body is provided with a mounting hole, the body is fixed with the sighting device base through the mounting hole and the mounting piece, and the shock pad is used for being arranged between the bow handle and the body;

the archery monitoring and prompting device further comprises a thickness adjusting block and/or a horizontal adjusting mechanism, the thickness adjusting block is arranged between the body and the shell, the horizontal adjusting mechanism is arranged on the shell and the detection unit connector, and the thickness adjusting block and/or the horizontal adjusting mechanism are used for adjusting the lateral distance between the sampling module and the arrow rod;

6. An archery monitoring prompt system based on arrow pulling travel, comprising:

an arrow monitoring and prompting device based on arrow pulling travel according to any one of claims 1 to 5; and

7. The archery monitoring and prompting system based on the arrow pulling stroke according to claim 6, further comprising an automated communication device, wherein the automated communication device comprises a master communication module and a slave communication module, the master communication module is wirelessly connected with the slave communication module, and the slave communication module is integrated on the archery monitoring and prompting system so that the master communication module is in communication connection with the control module; the main communication module comprises a computer and is used for receiving the motion information of the arrow shaft sent by the control module and forwarding the motion information of the arrow shaft to the management terminal.

8. An archery monitoring and prompting method based on an arrow pulling stroke is characterized by being applied to the archery monitoring and prompting system based on the arrow pulling stroke according to any one of claims 6 to 7; the method comprises the following steps:

collecting motion information of an arrow shaft by the sampling module, wherein the motion information comprises the direction, the track and the speed of the arrow shaft;

when the arrow shooting action in the normal state is determined, the prompt module is controlled to give a correct prompt, and the state information of the arrow shaft is recorded into a database of the management terminal so as to provide visual data analysis, statistics and tracing;

according to the self-evaluation log input by the management terminal, tracing the full-arch pull distance suitable for the movement staff, and processing the full-arch pull distance to output a sample curve of the movement rhythm;