技术领域technical field
本发明属于体育器材技术领域，具体涉及一种基于RFID的跳高垫及其使用方法。The invention belongs to the technical field of sports equipment, and in particular relates to an RFID-based high jump mat and a using method thereof.
背景技术Background technique
体育跳高项目中的背跃式等跳高项目在跳高杆的另一侧会设置体育跳高垫保护运动员，但是现有的体育跳高垫都是放置在地面上不动的或者只会直线运动，如果运动员由于横向速度跳跃后的落地点在跳高垫的边缘位置或者外侧，由于跳高垫不运动或者只会直线运动，运动员可能会掉在地上，扭伤脚踝等身体部位。High jumps such as the back jump in the sports high jump event can be provided with a sports high jump mat to protect the athlete on the other side of the high jump pole, but the existing sports high jump mats are all placed on the ground and do not move or can only move in a straight line. Because the landing point after the lateral speed jump is on the edge or outside of the high jump mat, because the high jump mat does not move or can only move in a straight line, the athlete may fall to the ground and sprain the ankle and other body parts.
发明内容Contents of the invention
根据以上现有技术的不足，本发明所要解决的技术问题是提出一种基于RFID的跳高垫及其使用方法，通过计算运动员的位置坐标，同时让跳高垫的中心点定位跟踪运动员，使得运动员始终落在跳高垫中心点处。According to the deficiencies in the prior art above, the technical problem to be solved by the present invention is to propose a RFID-based high jump mat and its method of use, by calculating the position coordinates of the athlete, while allowing the center point of the high jump mat to locate and track the athlete, so that the athlete is always Land on the center point of the high jump mat.
为了解决上述技术问题，本发明采用的技术方案为：In order to solve the problems of the technologies described above, the technical solution adopted in the present invention is:
一种基于RFID的跳高垫，包括跳高垫本体和基座，还包括：第一读写器：用来与位置标签、第一移动标签与第二移动标签进行信息传输；位置标签：用来提供参考位置信息；第一移动标签：第一移动标签佩戴在运动员的身上，用来完成与位置标签的信息交互，然后将交互信息传送给第一读写器；第二移动标签：第二移动标签设置在移动跳高垫的中心点上，用来完成与位置标签的信息交互，然后将交互信息传送给第一读写器；所述控制器以位置标签为参照点，将跳高场地的地理信息映射成一张电子地图，当位置标签应答第一移动标签与第二移动标签时，交互信息与位置信息通过第一读写器被传送到控制器，控制器通过定位计算第一移动标签与第二移动标签的两组坐标数据，然后通过控制器来控制跳高垫，实现跳高垫跟踪运动员。所述位置标签有三个，分别固定在跳高垫下方的基座左侧两端以及基座右侧中间位置。所述基座的上面还设置有电动助力转向装置。所述电动助力转向装置包括控制电路、转向模块与驱动电路与电机，信号采集电路采集到的转矩和转换后的速度信号送控制电路处理后，再发出控制信号给信号发送电路，经过驱动电路驱动电机转动。所述跳高垫还包括在跳高杆所在平面产生射频信号的第二读写器。An RFID-based high jump mat, including a high jump mat body and a base, also includes: a first reader-writer: used for information transmission with a position tag, a first mobile tag, and a second mobile tag; position tag: used to provide Refer to the position information; the first mobile tag: the first mobile tag is worn on the body of the athlete to complete the information interaction with the position tag, and then transmit the interaction information to the first reader; the second mobile tag: the second mobile tag It is set on the center point of the mobile high jump mat to complete the information interaction with the position tag, and then transmit the interaction information to the first reader; the controller uses the position tag as a reference point to map the geographical information of the high jump site When the location tag responds to the first mobile tag and the second mobile tag, the interaction information and location information are sent to the controller through the first reader-writer, and the controller calculates the location of the first mobile tag and the second mobile tag. The two sets of coordinate data of the tag are used to control the high jump mat through the controller, so that the high jump mat can track athletes. There are three position labels, which are respectively fixed at the two ends on the left side of the base and the middle position on the right side of the base under the high jump mat. An electric power steering device is also arranged above the base. The electric power steering device includes a control circuit, a steering module, a drive circuit, and a motor. The torque and converted speed signals collected by the signal acquisition circuit are sent to the control circuit for processing, and then control signals are sent to the signal transmission circuit. The drive motor rotates. The high jump mat also includes a second reader/writer for generating radio frequency signals on the plane where the high jump pole is located.
所述的基于RFID的跳高垫的使用方法包括如下步骤：The described using method of RFID-based high jump mat comprises the steps:
步骤一：运动员从跳高杆起跳，控制器通过第一读写器获取第一移动标签和第二移动标签的射频信号，通过定位计算获取第一移动标签以及第二移动标签的两组坐标数据；Step 1: The athlete takes off from the high jump pole, the controller obtains the radio frequency signals of the first mobile tag and the second mobile tag through the first reader, and obtains two sets of coordinate data of the first mobile tag and the second mobile tag through positioning calculation;
步骤二：控制器通过电动助力转向装置控制跳高垫的运动，使跳高垫中心点跟踪运动员的位置。Step 2: The controller controls the movement of the high jump mat through the electric power steering device, so that the center point of the high jump mat tracks the position of the athlete.
所述使用方法在步骤一之前还包括：第二读写器向跳高杆所在平面发送定向射频信号，获取第一移动标签的信号，检测到第一移动标签后，向控制器发送执行指令，控制器通过第一读写器获取第一移动标签以及第二移动标签的射频信号。The method of use also includes before step 1: the second reader/writer sends a directional radio frequency signal to the plane where the high jump pole is located, acquires the signal of the first mobile tag, and after detecting the first mobile tag, sends an execution command to the controller to control The reader obtains the radio frequency signals of the first mobile tag and the second mobile tag through the first reader-writer.
所述步骤一中的定位计算采用的是信号强度与距离的衰减公式：The positioning calculation in step 1 uses the attenuation formula of signal strength and distance:
电子地图中位置标签与第一移动标签的对应关系：The corresponding relationship between the position label and the first mobile label in the electronic map:
Lao2＝(Xa-X0)2+(Ya-Y0)2 (1)Lao2 ＝(Xa -X0 )2 +(Ya -Y0 )2 (1)
Lbo2＝(Xb-X0)2+(Yb-Y0)2 (2)Lbo2 ＝(Xb -X0 )2 +(Yb -Y0 )2 (2)
Lco2＝(Xc-X0)2+(Yc-Y0)2 (3)Lco2 ＝(Xc -X0 )2 +(Yc -Y0 )2 (3)
其中，(Xa，Ya)、(Xb，Yb)与(Xc，Yc)分别为位置标签a、b与c的坐标；Wherein, (Xa , Ya ), (Xb , Yb ) and (Xc , Yc ) are the coordinates of the position labels a, b and c respectively;
信号强度与距离的衰减公式：The attenuation formula of signal strength and distance:
[RSSI(a)-N]＝AQLao-n (4)[RSSI(a)-N]=AQLao-n (4)
[RSSI(b)-N]＝AQLbo-n (5)[RSSI(b)-N]=AQLbo-n (5)
[RSSI(c)-N]＝AQLco-n (6)[RSSI(c)-N]=AQLco-n (6)
其中，A为常数，n为衰减指数，Lao、Lbo、Lco分别为位置标签a到第一移动标签的距离、位置标签b到第一移动标签的距离，位置标签c到第一移动标签的距离，Q为发射功率，N为环境噪声，RSSI为信号强度。Among them, A is a constant, n is the attenuation index, Lao, Lbo, and Lco are the distance from position label a to the first mobile label, the distance from position label b to the first mobile label, and the distance from position label c to the first mobile label , Q is the transmit power, N is the ambient noise, and RSSI is the signal strength.
本发明有益效果是:The beneficial effects of the present invention are:
本发明的一种基于RFID的跳高垫及其使用方法可以定位跟踪跳杆人员，即使跳杆人员的动作发生扭转，运动员也不会落到地面上，而是始终落在跳高垫的中心位置。The RFID-based high jumping mat and its use method of the present invention can locate and track the pole jumper. Even if the pole jumper's movement is reversed, the athlete will not fall to the ground, but will always fall on the center of the high jumping mat.
附图说明Description of drawings
下面对本说明书附图所表达的内容及图中的标记作简要说明：The following is a brief description of the content expressed in the drawings of this specification and the marks in the drawings:
图1是本发明的具体实施方式的系统示意图。Fig. 1 is a system schematic diagram of a specific embodiment of the present invention.
图2是本发明的具体实施方式的计算示意图。Fig. 2 is a schematic calculation diagram of a specific embodiment of the present invention.
图3是本发明的具体实施方式的系统结构图。Fig. 3 is a system structure diagram of a specific embodiment of the present invention.
图4是本发明的具体实施方式的流程结构图。Fig. 4 is a flowchart structure diagram of a specific embodiment of the present invention.
具体实施方式detailed description
下面通过对实施例的描述，本发明的具体实施方式如所涉及的各构件的形状、构造、各部分之间的相互位置及连接关系、各部分的作用及工作原理、制造工艺及操作使用方法等，作进一步详细的说明，以帮助本领域技术人员对本发明的发明构思、技术方案有更完整、准确和深入的理解。Through the description of the embodiments below, the specific implementation of the present invention includes the shape, structure, mutual position and connection relationship between the various parts, the function and working principle of each part, the manufacturing process and the operation and use method of the various components involved. etc., to make further detailed descriptions to help those skilled in the art have a more complete, accurate and in-depth understanding of the inventive concepts and technical solutions of the present invention.
本发明的主题思路是：本发明的跳高垫包括控制器、第一读写器、位置标签和移动标签，其中，位置标签包括三个，移动标签包括第一移动标签和第二移动标签，第一移动标签佩戴在运动员的身上，第二移动标签设置在移动跳高垫的中心点上。位置标签设置在跳高垫底部基座左侧的两端点，以及右侧的中点位置，位置标签的位置固定不动，相对地面静止。通过控制器、第一读写器以及位置标签来确认两个移动标签的位置，控制器通过控制跳高垫的运动机构使两个移动标签的水平X、Y坐标一致，保证运动员始终处于跳高垫的中心位置。与此同时，运动员在起跳之前都要进行助跑，为了保证跳高垫有效的运动，通过在跳高杆上设置第二读写器来确定跳高垫的移动起始点。The main idea of the present invention is: the high jump mat of the present invention includes a controller, a first reader-writer, a position tag and a moving tag, wherein the position tag includes three, the moving tag includes a first moving tag and a second moving tag, and the first One mobile tag is worn on the athlete's body, and the second mobile tag is arranged on the central point of the mobile high jump mat. The position labels are arranged at the two ends on the left side of the bottom base of the high jump mat, and the midpoint position on the right side, and the positions of the position labels are fixed and stationary relative to the ground. The positions of the two mobile tags are confirmed by the controller, the first reader-writer and the position tag. The controller controls the movement mechanism of the high jump mat to make the horizontal X and Y coordinates of the two mobile tags consistent, ensuring that the athletes are always in the position of the high jump mat. Central location. At the same time, the athlete will perform a run-up before taking off. In order to ensure the effective movement of the high jump mat, the starting point of the high jump mat is determined by setting a second reader on the high jump pole.
以位置标签为参照点，将跳高的场地的地理信息制成一张电子地图，当位置标签应答第一移动标签时，交互信息(信号强度)与位置信息通过第一读写器被传送到控制器，控制器通过数据库映射以及计算得出跳高垫起跳点的位置以及第一与第二移动标签在电子地图中的坐标。Using the location tag as a reference point, the geographical information of the high jump site is made into an electronic map. When the location tag responds to the first mobile tag, the interaction information (signal strength) and location information are transmitted to the control panel through the first reader The controller uses database mapping and calculation to obtain the position of the jumping point of the high jump mat and the coordinates of the first and second mobile tags in the electronic map.
具体的，首先设定跳高垫的启动时间，第二读写器采用定向天线，签垂直于地面的平面内发射电磁波信号，同步发射无线信号，第二读写器通过天线与RFID电子标签进行无线通信，可以实现对标签识别码和内存数据的读出或写入操作，利用第二读写器检测到的目标，在电磁波信号平面内就可以确定待检测RFID标签的穿过跳高杆的时间。Specifically, first set the startup time of the high jumping mat, the second reader uses a directional antenna, and the label emits electromagnetic wave signals in a plane perpendicular to the ground, and transmits wireless signals synchronously, and the second reader uses the antenna to communicate with the RFID tag. Communication can realize the read or write operation of the tag identification code and memory data, and use the target detected by the second reader to determine the time when the RFID tag to be detected passes through the high jump pole within the electromagnetic wave signal plane.
当跳高垫被启动之后，以第一移动标签为例，计算其坐标：After the high jump pad is activated, take the first mobile label as an example to calculate its coordinates:
电子地图中位置标签与第一移动标签的对应关系：The corresponding relationship between the position label and the first mobile label in the electronic map:
Lao2＝(Xa-X0)2+(Ya-Y0)2 (1)Lao2 ＝(Xa -X0 )2 +(Ya -Y0 )2 (1)
Lbo2＝(Xb-X0)2+(Yb-Y0)2 (2)Lbo2 ＝(Xb -X0 )2 +(Yb -Y0 )2 (2)
Lco2＝(Xc-X0)2+(Yc-Y0)2 (3)Lco2 ＝(Xc -X0 )2 +(Yc -Y0 )2 (3)
这里，(Xa，Ya)、(Xb，Yb)与(Xc，Yc)分别为位置标签a、b与c的坐标；Here, (Xa , Ya ), (Xb , Yb ) and (Xc , Yc ) are the coordinates of position labels a, b and c respectively;
信号强度与信号源之间的关系如下(其中，RSSI为信号强度)：The relationship between signal strength and signal source is as follows (where RSSI is the signal strength):
[RSSI(a)-N]＝AQLao-n (4)[RSSI(a)-N]=AQLao-n (4)
[RSSI(b)-N]＝AQLbo-n (5)[RSSI(b)-N]=AQLbo-n (5)
[RSSI(c)-N]＝AQLco-n (6)[RSSI(c)-N]=AQLco-n (6)
这里A为常数，n为衰减指数，通过现场实测获得，或是用经验值,Lao、Lbo、Lco分别为位置标签a到第一移动标签的距离，位置标签b到第一移动标签的距离，位置标签c到第一移动标签的距离，Q为发射功率，可调，其最大值为20dBm；N为环境噪声。由此计算方法可以得到第一移动标签的坐标(X0，Y0)。同理计算出跳高垫中心点相对于三个位置标签的坐标。Here A is a constant, n is the attenuation index, obtained through on-site measurement, or using empirical values, Lao, Lbo, and Lco are respectively the distance from position label a to the first mobile label, and the distance from position label b to the first mobile label. The distance from the location tag c to the first mobile tag, Q is the transmit power, adjustable, and its maximum value is 20dBm; N is the environmental noise. From this calculation method, the coordinates (X0 , Y0 ) of the first mobile tag can be obtained. Similarly, the coordinates of the center point of the high jump mat relative to the three position labels are calculated.
跳高垫的第二移动标签也进行计算位置，同时将位置信息通过第一读写器传送给控制器,控制器将第一移动标签与第二移动标签的位置信息进行对比，然后将数据传送给跳高垫的转向装置，通过控制系统以及驱动系统完成跳高垫的转向与移动。The second mobile tag of the high jump mat also calculates the position, and at the same time transmits the position information to the controller through the first reader, and the controller compares the position information of the first mobile tag with the second mobile tag, and then transmits the data to The steering device of the high jump mat completes the steering and movement of the high jump mat through the control system and the drive system.
最后，本设计的跳高垫的运动装置包括电动助力转向装置，设置在跳高垫的底部且基座的上面，具体包括控制系统、转向模块和驱动部分这三个部分组成，控制系统主要由信号采集电路、单片机和信号发送电路组成。其中单片机是控制部分的核心部件，信号采集电路采集到的转矩和转换后的速度信号送单片机处理后，单片机再发出控制信号给信号发送电路，经过驱动电路驱动电机转动。转向模块主要由液压电机、角位移传感器组成。它起着转向辅助动力的产生，传递和中断的作用。而驱动部分是助力控制方式的具体体现，它由控制方式和控制策略来决定。Finally, the motion device of the high jump mat of this design includes an electric power steering device, which is arranged on the bottom of the high jump mat and above the base, and specifically includes three parts: the control system, the steering module and the driving part. The control system is mainly composed of signal acquisition circuit, single chip microcomputer and signal sending circuit. The single-chip microcomputer is the core component of the control part. After the torque and converted speed signals collected by the signal acquisition circuit are sent to the single-chip microcomputer for processing, the single-chip microcomputer sends a control signal to the signal transmission circuit, and drives the motor to rotate through the drive circuit. The steering module is mainly composed of a hydraulic motor and an angular displacement sensor. It plays the role of generation, transmission and interruption of steering auxiliary power. The driving part is a concrete embodiment of the power-assisted control method, which is determined by the control method and control strategy.
上面对本发明进行了示例性描述，显然本发明具体实现并不受上述方式的限制，只要采用了本发明的方法构思和技术方案进行的各种非实质性的改进，或未经改进将本发明的构思和技术方案直接应用于其它场合的，均在本发明的保护范围之内。本发明的保护范围应该以权利要求书所限定的保护范围为准。The present invention has been exemplarily described above, and it is obvious that the specific implementation of the present invention is not limited by the above-mentioned manner, as long as the various insubstantial improvements of the method concept and technical solutions of the present invention are adopted, or the present invention is implemented without improvement. The ideas and technical schemes directly applied to other occasions are within the protection scope of the present invention. The protection scope of the present invention should be determined by the protection scope defined in the claims.
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| CN201710716471.6ACN107617189B (en) | 2017-08-21 | 2017-08-21 | A kind of high jump pad and its application method based on RFID |
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| CN201710716471.6ACN107617189B (en) | 2017-08-21 | 2017-08-21 | A kind of high jump pad and its application method based on RFID |
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