WO2013189006A1

WO2013189006A1 - Archery scoring system

Info

Publication number: WO2013189006A1
Application number: PCT/CN2012/001758
Authority: WO
Inventors: 冯光平
Original assignee: 北京方格世纪科技有限公司
Priority date: 2012-06-18
Filing date: 2012-12-28
Publication date: 2013-12-27
Also published as: CN102688587B; CN102688587A

Abstract

An archery scoring system comprises a target, an archery standard target face, an image collector, a main control host computer, audio equipment and display equipment. A collected image is uploaded to the main control host computer in real time by the image collector. Then the main control host computer calculates the impact position of an arrow and counts the score on the basis of the position relationship between the recorded point of impact and a positioning point, and simultaneously displays the score in a video and/or audio way so as to replace the way of manual scoring. The archery scoring system realizes teaching through entertainment, and is convenient in operation and economic.

Description

Archery scoring system

Technical field

The present invention pertains to the technical field of game entertainment, and more particularly to an archery scoring system for archery recreational activities.

Background technique

The archery movement has a long history. In ancient times, it has played a very important role in the development of human society as a basic skill for survival. Nowadays, with the improvement of human living standards, archery has gradually developed into an entertainment. Leisure and sports competitions. At present, the sport has been popularized in many countries around the world and in many cities in China, and an archery hall has been established. The development of this sport and the construction of the venue facilities not only help the professional athletes to improve their level of exercise, but also provide recreational activities that benefit the mind and body.

Usually, the archery of the archery hall, the archery recreation center, and the archery training site are placed at a certain distance from the shooter, and a plurality of arrow targets are respectively set in several shooting channels. Due to the long distance, it is not easy to observe the situation in the shot.

In recent decades, in order to improve the level of competition, countries have strengthened the scientific research work of archery, improved training methods, improved the quality of equipment, and improved the level of archery. Among them, automatic positioning, identification, and reporting systems have gradually become Key projects in industry research and development. The current automatic positioning and identification reporting methods mainly include: (1) photoelectric automatic reporting target; (2) ultrasonic sensor reporting; (3) electronic sensor reporting; (4) camera reporting and other methods. Among them, the photoelectric automatic target reporting method is divided into infrared, laser and linear array CCD. However, the photoelectric automatic target reporting technology is complicated and expensive, and is not suitable for archery leisure and entertainment activities. The ultrasonic sensor target is the most advanced target system designed by Switzerland. It has the advantages of high precision and weather resistance. However, the imported equipment is quite expensive and obviously not suitable for promotion in leisure and entertainment activities. Applications, generally only used for professional training and high-level competition selection; while the current electronic sensor target and camera target can not achieve automatic target reporting, making the archery movement lack of interaction, it seems boring. Therefore, in order to promote archery, we must start from the fun, interactive and scientific, completely change people's views on archery, so that people can relax physically and mentally while enjoying leisure and entertainment.

Summary of the invention

In order to solve the above-mentioned technical problems existing in the prior art, an object of the present invention is to provide an archery scoring system, which determines the target position of an arrow branch and makes a scoring statistics by recording the positional relationship between the target point and the anchor point. At the same time, the scoring situation is reported in video and/or audio to replace the manual scoring method. The invention is entertaining and educational, convenient and economical, scientific, interactive and interesting, and makes the ancient archery movement appear as a medium and high-grade leisure and fitness exercise in people's field of vision and life. And it is increasingly vibrant.

In order to achieve the above object, the present invention provides the following technical solutions:

An archery scoring system, including an arrow target, an archery standard target paper, an image collector, a main control computer host, an audio device and a display device, and an image collector collects an image of an archery standard target paper, and transmits the image information to the main control The host computer, the main control computer host outputs the result of completing the scoring operation and the target object through the audio device and the display device, and is characterized in that: the outermost target ring edge on the archery standard target paper is provided with N positioning points, N 3 The main control computer host includes an archery scoring control module and a scoring target control module. The archery scoring control module is used for confirming the position information of the arrow branch and transmitting the position information to the scoring target control module, and the scoring report The target control module calculates the distance of the arrow from the target ring and determines the number of rings according to the position information transmitted by the archery scoring control module, and completes automatic scoring and reporting; the archery scoring control module includes: a target disc positioning unit, New arrow detection and comparison unit, arrow body stability detection unit, new arrow position detection unit, and target disk positioning unit are used to eliminate image deformation problems. N positioning points of the flak The calibration point determines the calibration information; the new arrow detection comparison unit is used to determine whether a new arrow appears on the target; the arrow stability detection unit is used to detect whether the target new arrow is valid; the new arrow position detection unit is used to detect the new arrow Target position, and combined with calibration point information of the target disk positioning unit, determining new arrow position information;

Preferably, the number of positioning points is N = 4 _; further, the positioning point is a square of 40 mm x 40 mm.

Further, the main control computer host further includes a preset scoring animation module and/or a scoring module; the main control computer host further includes a preset archery history module, an archery teaching module, and an archery scoring rule. Module and / or equipment introduction module.

Further, the image collector is a camera, the distance of the image collector from the target paper is 1200 mm-4000 诵, the angle between the image collector and the target is 0°-70°; further, the camera has M, wherein M l.

Further, the archery scoring system further includes a remote touch screen device.

DRAWINGS

Figure 1 Schematic diagram of the archery scoring system

Figure 2 Schematic diagram of the target paper and positioning point of the archery scoring system

Figure 3 Archery scoring control module flow chart

Figure 4 Archery scoring system teaching module entrance example diagram

detailed description

A detailed description will be given below with reference to the accompanying drawings. As shown in FIG. 1 , the archery scoring system of the present invention includes an arrow target, an archery standard target paper, an image collector, a main control computer host, an audio device, and a display device. An image collector is installed in front of the target to collect real-time images of the archery. Whenever there is a significant change in the target surface, the collector immediately uploads the captured image to the host computer host. The main control computer includes an archery meter inside. The sub-control module and the scoring target control module, the archery scoring control module is used for confirming the position information corresponding to the arrow and transmitting the position information to the scoring target control module, and the scoring target control module according to the archery scoring control module The transmitted position information, calculate the distance of the arrow from the target ring and determine the number of rings, and complete an automatic scoring.

When the image collector detects the new arrow, it locates it, compares it with the previously acquired image, and transmits the contrast target information to the host computer host to start the subprogram of the main control computer. The module performs calculations to calculate the number of target rings of the arrow. After the accumulation, the results of the current score and the accumulated results are all displayed, and the main computer host reports the scores in video and/or audio. Thus, instead of manual scoring, automatic reporting is achieved.

Further, the main control computer host further includes a preset scoring animation module and a scoring module; in order to increase the interest, the scoring result brings up different 3D animation displays according to the corresponding target ring number, and adds some The humorous language is used to target, to increase the interactive and entertaining nature of the archery movement, and to adjust the atmosphere of the archery venue in a timely manner.

Further, the main control computer host further includes a preset teaching function module, such as an archery history module, an archery teaching module, an archery scoring rule module, and a device introduction module, through which the archery activities and the archery activities can be performed. The rules have a clear understanding, and can be familiar with the use of archery venues and their supporting equipment; for large archery entertainment venues, the archery scoring system can also be equipped with a remote touch screen device, with the finger click on the relevant page, you can enter the relevant content At any time, the history of the archery or the live video recording can be called up. The audio results can also be directly transmitted to the shooter through the headset. The present invention records the target position of each arrow in real time, and the player can adjust himself according to the performance of the last archery. of Pose and focus to achieve even better results.

Figure 2 shows the target paper and positioning point of the archery scoring system. The positioning point can be located at any position on the outermost target ring on the target paper. As long as the outer edge of the positioning point is the same as the diameter of the outermost target ring e, the positioning point is connected. The line cross is the center of the target ring. The number of positioning points on the standard target paper of the archery is equal to 4, and the four positioning points of a, b, c, and d are marked on the four corners of the standard target paper of the archery. The positioning point is 40 awake X. 40 black squares that are awake, wherein the distance between the outer two parallel frames is the same as the diameter of the outermost target ring e, and the nodes of the ad and be intersecting lines are positioned as the center point of the target ring, and each ring is a distance. Equal concentric circles, with the target ring as the center, calculate the corresponding position of each target ring. When the arrow is shot at a certain position, calculate the distance of the arrow from the target ring, and then determine the number of rings.

The archery scoring control module comprises: a target disk positioning unit, a new arrow detection and comparison unit, a body stability detecting unit, a new arrow position detecting unit, and an automatic counting according to the flow chart of the archery scoring control module shown in FIG. The sub-function, the scoring target control module performs the following steps:

Target positioning unit

The target disc positioning unit is a black square that is assigned to the four corners of the target, and is used as a calibration point to perform perspective transformation on the target disc, thereby eliminating the image deformation problem of the target disc caused by the camera angle. The specific process is as follows:

(1) In order to reduce the interference of other noises, the image is binarized according to the threshold from high to low, and the highest threshold that can be positioned to four calibration points is found according to the information such as the width and height of the connected body and the relative position.

(2) In order to completely retain the arrow information in the binary image, the image is binarized according to the threshold from low to high, and is found according to the width of the connected body and the calibration point letter located in step (1). A minimum threshold that can be located to four calibration points as a binarization threshold for subsequent processing.

New arrow detection comparison unit The new arrow detection comparison unit refers to whether a new arrow appears on the currently acquired image compared to the previous image acquired from the camera. The specific process is as follows:

(1) Binarize the previous image and the current image according to the binarization threshold calculated in the target disk positioning, and subtract the previous binarized image from the current binarized image to obtain a difference image.

(2) Perform a connected body analysis on the difference image, and judge whether there is a possibility of a new arrow on the difference image based on the width, height, shape, and the like.

Arrow body stability detection unit

The arrow body stability detecting unit refers to detecting the position of the new arrow after stopping the new arrow on the target, and detecting the position of the new arrow after stopping, so as to reduce the interference of other noises. The specific process is similar to the new arrow detection comparison unit:

(2) Performing a connected body analysis on the difference image, judging whether the flutter is stopped according to the width, height, shape, etc. New arrow position detecting unit

The new arrow position detecting unit refers to detecting the position of the new arrow on the target after the new arrow body is stabilized, and calculating the score corresponding to the new arrow by using the calibration point information obtained by the target disk positioning. The specific process is as follows -

(1) Binarize the image before the occurrence of the new arrow and the current image according to the binarization threshold calculated in the target disk positioning, and subtract the binarized image before the appearance of the new arrow with the current binarized image. , get the difference image.

(2) Find a straight line on the difference image as a candidate arrow. Since the new arrow may cause the position of the arrow of the original arrow to change, it may be possible to find out more of the wrong arrow.

(3) ^^ ^^ M ^^ , thus keeping the body of the new arrow Information.

(4) Combine the calibration point information obtained by the target disk positioning, and make a perspective transformation on the new arrow body to obtain the position of the new arrow on the corrected arrow target image, thereby calculating the score corresponding to the new arrow.

The image collector of the archery scoring system of the present invention is a camera, and the distance of the image collector from the target paper is 1200 legs - 4000 countries, and the angle between the image collector and the target is 0° 70° to ensure the collected The image is clearly defined. When the image of the target paper collected by the image collector occupies 1/2 2/3 of the whole picture, the position of the target ring can be accurately located. The more the number of cameras, the more the positioning is. The more images, the more accurate the positioning data, and the real-time observation of any changes in the target from different angles. The most economical and practical choice of two, if one of them fails, the other can still transmit the image information accurately, while the two cameras can prove each other, save the original image, and record the target position of each arrow. In the main control computer host database, check the analysis with alternative hands, etc., to avoid artificial cheating, to ensure the fairness of the game.

While the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art The scope of the invention is defined by the appended claims and their equivalents.

Claims

WO 2013/189006 权禾|J Request PCT/CN2012/001758

1. An archery scoring system, comprising an arrow target, an archery standard target paper, an image collector, a main control computer host, an audio device and a display device, wherein: the outermost target ring edge of the archery standard target paper is set There are N positioning points, N 3; the main control computer host includes an archery scoring control module and a scoring target control module, and the archery scoring control module is used for confirming the position information of the arrow branch and transmitting the position information to the scoring The target control module, the scoring target control module calculates the distance of the arrow from the target ring according to the position information transmitted by the archery scoring control module, determines the number of rings, and completes automatic scoring and reporting;

The archery scoring control module comprises: a target disc positioning unit, a new arrow detection and comparison unit, a body stability detecting unit, and a new arrow position detecting unit.

The target disk positioning unit is used to eliminate the image deformation problem, and the calibration information is determined by using N positioning points on the target as calibration points; the new arrow detection and comparison unit is used to determine whether a new arrow appears on the target; the body stability detecting unit It is used to detect whether the target new arrow is effective; the new arrow position detecting unit is configured to detect the new target position of the target, and combine the calibration point information of the target disk positioning unit to determine the new arrow position information;

2. The archery scoring system according to claim 1, wherein: the number of positioning points is N=4.

3. The archery scoring system according to claim 2, wherein the positioning point is a square of 40 mm X 40 mm.

4. The archery scoring system according to claim 1, wherein: the main control computer host further comprises a preset scoring animation module and/or a target module.

The archery scoring system according to claim 1, wherein: the main control computer host further comprises a preset archery history module, an archery teaching module, an archery scoring rule module and/or a device introduction module.

6. The archery scoring system according to claim 1, wherein the image collector is a camera.

7. The archery scoring system according to claim 6, wherein: the image collector is away from the target paper WO 2013/189006 权禾|J Request PCT/CN2012/001758 The distance is 1200 mm 4000 mm, and the angle between the image collector and the bullseye is 0° -70°.

8. The archery scoring system according to claim 6, wherein: there are M cameras, wherein M

9. The archery scoring system of claim 1 wherein: the archery scoring system further comprises a remote touch screen device.