A sports penalty assisting device

CN224851500UActive Publication Date: 2026-10-13北京雏鹰凝心体育科技开发有限公司
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Patent Information

Application Number
CN202522091747.9
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-09-28
Publication Date
2026-10-13
Estimated Expiration
2035-09-28

AI Technical Summary

Technical Problem

传统辅助执裁设备多为固定式安装或体积较大的便携式终端,裁判员在移动执裁过程中携带不便,且设备操作复杂,需占用大量注意力,影响其对比赛现场的专注度

Benefits of technology

(1)通过腕表的第一蜂窝网络通信模组或第一 NFC 读取模块,可实时接收外部球员犯规辅助识别信息,并快速传输至便携器的 LCD 显示屏,裁判员无需暂停比赛等待回放复核,解决了传统 VAR 系统响应滞后、影响比赛连贯性的问题,同时避免人工判罚因视觉局限、经验差异导致的漏判误判,为判罚提供即时、客观的数据支持;

✦ Generated by Eureka AI based on patent content.

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Abstract

The application relates to a sports penalty auxiliary device and belongs to the technical field of sports science and technology. The device comprises a wristwatch and a portable device. The wristwatch comprises a shell, a first processing circuit board arranged in the shell, a first cellular network communication module, an interactive interface, a vibration module and a first NFC reading module. The portable device comprises a second processing circuit board, a second cellular network communication module, an LCD display screen and a second NFC reading module. Wireless data connection is established between the first cellular network communication module and the second cellular network communication module or between the first NFC reading module and the second NFC reading module, so as to transmit external player penalty auxiliary identification information received by the wristwatch to the portable device and display the information on the LCD display screen. The application realizes fast information transmission, assists referees in officiating, and improves penalty efficiency and fairness.
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Description

Technical Field

[0001] This application relates to the field of sports technology, and in particular to a sports officiating aid device. Background Technology

[0002] In five-a-side football, the referee's accurate judgment of player fouls and appropriate rulings are crucial to the fairness and impartiality of the match. The precise determination of player fouls directly impacts the fairness, entertainment value, and the course of the game. As the pace of the game accelerates and player techniques become increasingly complex, the traditional refereeing model, relying on visual observation and experience, is gradually failing to meet the demands for high-precision and efficient rulings, revealing numerous technical shortcomings that urgently need to be addressed.

[0003] Existing refereeing support technologies are insufficient to form a complete system for supporting officiating decisions. While some competitions have introduced Video Assistant Referee (VAR) systems that can review key controversial calls through video replay, they suffer from issues such as delayed response, reliance on fixed camera angles, and the inability to provide real-time support. In actual officiating, referees must pause the game and wait for feedback from the VAR team, severely impacting the flow of the match. Furthermore, VAR systems cannot cover all game scenarios; minor fouls in non-critical areas still require on-site referee judgment. In addition, portable recording devices used in some sports can only record foul information retrospectively, lacking the ability to receive external auxiliary data in real-time or interact instantly with referees, making it difficult to provide effective support to referees at the moment of decision-making.

[0004] Existing auxiliary equipment has significant shortcomings in portability, stability, and user experience. Traditional auxiliary refereeing equipment is mostly fixed installation or a bulky portable terminal, which is inconvenient for referees to carry while on the move. Furthermore, the equipment is complex to operate, requiring a significant amount of attention and affecting their focus on the game. At the same time, the communication stability of the equipment is insufficient; in complex stadium environments (such as crowded stadiums with strong signal interference), data transmission interruptions and delays are prone to occur, resulting in the failure to deliver auxiliary information in a timely manner. Additionally, the display interface and operation buttons of some devices are not ergonomically designed, making it difficult for referees to quickly obtain information or complete operations during the tense pace of a game, further reducing the efficiency of auxiliary refereeing.

[0005] Furthermore, existing technologies also have shortcomings in terms of equipment integration and adaptability. Most auxiliary devices only have a single information display or recording function, and cannot achieve integrated reception, processing, and feedback of external foul recognition data; the battery life and anti-interference capabilities of the devices are difficult to meet the needs of long-term, high-intensity events. For example, in outdoor events, the devices are easily affected by weather, magnetic fields, and other factors, leading to unstable performance; at the same time, the maintenance and replacement costs of the devices are high, and the entire device must be replaced when the core components are damaged, making modular maintenance impossible and increasing the operating costs of the events.

[0006] Therefore, the current field of sports officiating urgently needs an auxiliary officiating device with real-time data interaction, portability, stability, and user-friendly human-computer interaction to solve the limitations of manual judgment, the lag of existing auxiliary technologies, and the insufficient performance of equipment. This device would provide referees with immediate and accurate foul judgment assistance, ensure the fairness and continuity of the competition, and promote the development of sports officiating technology towards intelligence and precision. Utility Model Content

[0007] Based on this, this application provides a sports refereeing assistance device, which transmits external player foul identification information to the portable device and displays it on the LCD screen, thereby achieving rapid information transmission to assist referees in their officiating and improve the efficiency and fairness of the rulings.

[0008] To address the aforementioned problems, this utility model provides a sports officiating assistance device, comprising a wristwatch and a portable device. The wristwatch includes: case; A first processing circuit board is disposed within the housing; The first cellular network communication module is connected to the first processing circuit board and is used to access the mobile communication network; An interactive interface, connected to the first processing circuit board, is used to enable information interaction with the user; A vibration module, connected to the first processing circuit board, is used to provide tactile feedback; The first NFC reading module is connected to the first processing circuit board and is used for near-field communication and data reading and writing. The portable device includes: Second processing circuit board; The second cellular network communication module is connected to the second processing circuit board and is used to realize mobile network data transmission and communication. An LCD display screen is connected to the second processing circuit board and is used to display device status, operation interface and data information. The second NFC reading module is connected to the second processing circuit board and is used for near-field communication and data reading and writing. A wireless data connection is established between the first cellular network communication module and the second cellular network communication module, or between the first NFC reading module and the second NFC reading module, for transmitting the external player foul assistance identification information received by the wristwatch to the portable device, and for display on the LCD screen.

[0009] Furthermore, the portable device also includes a housing, and the second cellular network communication module, the second processing circuit board, and the second NFC reading module are all integrated inside the housing.

[0010] Furthermore, the outer casing is provided with a sensing area corresponding to the second NFC reading module, and a physical button opening corresponding to the control button.

[0011] Furthermore, a communication isolation chamber is provided inside the housing, in which the first cellular network communication module and the first NFC reading module are placed respectively, and a metal shielding partition is provided between the two chambers.

[0012] Furthermore, the outer shell has an arc-shaped curved surface structure, the curvature of which is adapted to the curvature of the hand grip; anti-slip raised stripes are provided on both sides of the outer shell, and the LCD display screen is tilted at a 15°-20° angle to the surface of the outer shell.

[0013] Furthermore, at the locations of the housing and outer shell corresponding to the first NFC reading module and the second NFC reading module, the sensing area is surrounded by an annular magnetic metal frame, and the surface of the sensing area is covered with a 0.08-0.12mm ceramic cover plate.

[0014] Furthermore, the first processing circuit board has a pluggable modular structure and is connected to the housing via a guide rail type slot.

[0015] Furthermore, the vibration module is fixed by magnetic attraction, and the vibration intensity is 0.5g-1.0g.

[0016] Furthermore, an emergency battery compartment is provided on the back of the housing, which houses a replaceable backup battery and is connected to the second processing circuit board via elastic contacts.

[0017] Furthermore, a wireless charging coil groove is provided at the bottom of the housing to accommodate an external fitness tracker charger.

[0018] Compared with the prior art, the present invention has the following beneficial effects: (1) Through the first cellular network communication module or the first NFC reading module of the wristwatch, external player foul auxiliary identification information can be received in real time and quickly transmitted to the LCD screen of the portable device. Referees do not need to pause the game to wait for replay review, which solves the problem of slow response and impact on the continuity of the game in the traditional VAR system. At the same time, it avoids missed or wrong judgments caused by visual limitations and experience differences in manual judgment, and provides real-time and objective data support for judgment. (2) A communication isolation chamber is set up inside the watch case, and the first cellular network communication module and the first NFC reading module are placed in separate chambers and metal shielding partitions are set up to effectively avoid signal interference between the two communication modules. At the same time, the sensing areas of the first and second NFC reading modules are wrapped with a ring magnetic metal frame to reduce the influence of external magnetic fields on communication, and solve the problem that existing auxiliary equipment is prone to data transmission interruption and delay in crowded and complex competition environments. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the internal structure of the wristwatch according to an embodiment of the present utility model; Figure 2 This is a schematic diagram of the external structure of the wristwatch according to an embodiment of the present utility model; Figure 3 This is a schematic diagram of the internal structure of the portable device according to an embodiment of the present utility model; Figure 4 This is a schematic diagram of the external structure of the portable device according to an embodiment of the present utility model; Figure 5 This is a schematic diagram of the adjudication system according to an embodiment of the present utility model; Wherein: 11-Housing, 12-First processing circuit board, 13-First processor, 14-First cellular network communication module, 15-Interactive interface, 16-Vibration module, 17-First NFC reading module, 18-First battery, 21-Second cellular network communication module, 22-LCD display screen, 23-Control buttons, 24-Second processing circuit board, 25-Second processor, 26-Second NFC reading module, 27-Second battery, 28-Outer shell. Detailed Implementation

[0020] The present application will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present application and are not intended to limit the scope of the present application.

[0021] A sports officiating aid device, such as Figure 1-4 As shown, it includes a wristwatch and a portable device. like Figure 1 , Figure 2 As shown, the watch includes: Casing 11; A first processing circuit board 12 is disposed inside the housing 11, on which a first processor 13 is integrated; The first cellular network communication module 14 is connected to the first processing circuit board 12 and is used to access the mobile communication network. The interactive interface 15 is connected to the first processing circuit board 12 and is used to realize information interaction with the user; Vibration module 16, connected to first processing circuit board 12, is used to provide tactile feedback; The first NFC reading module 17 is connected to the first processing circuit board 12 and is used for near-field communication and data reading and writing. The first battery 18 is disposed inside the housing 11 and is used to power the first processing circuit board 12, the first cellular network communication module 14, the interactive interface 15, the vibration module 16 and the first NFC reading module 17. like Figure 3 , Figure 4 As shown, the portable device includes: Second processing circuit board 24; The second cellular network communication module 21 is connected to the second processing circuit board 24 and is used to realize mobile network data transmission and communication. LCD display screen 22 is connected to the second processing circuit board 24 and is used to display device status, operation interface and data information; The second NFC reading module 26 is connected to the second processing circuit board 24 and is used for near-field communication and data reading and writing. LCD display screen 22 is used to display device status, operation interface and data information; Control button 23 is used for user input of operation commands; The second battery 27 is used to provide power to the entire portable device; The second processing circuit board 24 is connected to the second cellular network communication module 21, LCD display 22, control buttons 23 and the second NFC reading module 26 via a data bus to realize data exchange and transmission of control signals; the second battery 27 is used to power the second cellular network communication module 21, the second processing circuit board 24 and the second NFC reading module 26. A wireless data connection is established between the first cellular network communication module 14 and the second cellular network communication module 21, or between the first NFC reading module 17 and the second NFC reading module 26, to transmit the external player foul assistance identification information received by the wristwatch to the portable device, and to be displayed on the LCD display screen 22.

[0022] Through the first cellular network communication module or the first NFC reading module of the wristwatch, external player foul identification information can be received in real time and quickly transmitted to the LCD screen of the portable device. Referees do not need to pause the game to wait for replay review, which solves the problem of slow response and impact on the continuity of the game caused by traditional VAR system. At the same time, it avoids missed or wrong judgments caused by human judgment due to visual limitations and experience differences, and provides real-time and objective data support for judgment. As one embodiment of this application, the portable device also includes a housing 28, and the second cellular network communication module 21, the second processing circuit board 24, and the second NFC reading module 26 are all integrated inside the housing 28.

[0023] As one embodiment of this application, the housing 28 is provided with a sensing area corresponding to the second NFC reading module 26 and a physical button opening corresponding to the control button 23.

[0024] As one embodiment of this application, a communication isolation chamber is provided inside the housing 11, and the first cellular network communication module 14 and the first NFC reading module 17 are respectively placed in independent chambers, with a metal shielding partition provided between the two chambers.

[0025] A communication isolation chamber is set up inside the watch case, and the first cellular network communication module and the first NFC reading module are placed in separate chambers and equipped with metal shielding partitions to effectively avoid signal interference between the two communication modules. At the same time, the sensing areas of the first and second NFC reading modules are wrapped with a ring-shaped magnetic metal frame to reduce the influence of external magnetic fields on communication, and solve the problem that existing auxiliary devices are prone to data transmission interruption and delay in crowded and signal complex competition environments. As one embodiment of this application, the outer shell 28 has an arc-shaped curved surface structure, the curvature of which is adapted to the curvature of the hand grip; anti-slip raised stripes are provided on both sides of the outer shell 28, and the LCD display screen 22 is tilted at an angle of 15°-20° to the surface of the outer shell 28.

[0026] The portable device features a curved surface structure that adapts to the grip angle, with anti-slip raised stripes on both sides. The LCD display screen is tilted at a 15°-20° angle to the surface of the casing, making it easy for referees to hold the device stably and view information quickly while on the move. The wristwatch is small and can be worn on the wrist without taking up extra hand space, solving the problems of traditional auxiliary devices being bulky, inconvenient to carry, and distracting to the referee during operation.

[0027] As one embodiment of this application, the sensing area is surrounded by an annular magnetic metal frame at the positions of the housing 11 and outer shell 28 corresponding to the first NFC reading module 17 and the second NFC reading module 26, and the surface of the sensing area is covered with a 0.08-0.12mm ceramic cover plate.

[0028] The NFC reader module's sensing area is covered with a 0.08-0.12mm ceramic cover plate, which is both wear-resistant and scratch-resistant, making it suitable for the complex use environment of the competition venue.

[0029] As one embodiment of this application, the vibration module 16 is fixed by magnetic attraction, and the vibration intensity is 0.5g-1.0g. The magnetic fixation of the vibration module and the control of the vibration intensity within 0.5g-1.0g not only provide timely tactile feedback to the referee but also prevent excessive vibration from affecting operation, thus solving the problems of insufficient durability and mismatch between functional design and actual usage needs in existing equipment.

[0030] As one embodiment of this application, the first processing circuit board 12 is a pluggable modular structure and is connected to the housing 11 via a guide rail type slot.

[0031] The first processing circuit board adopts a pluggable modular structure and is connected to the housing through a guide rail slot. When damaged, it can be replaced individually without the need for overall repair, thus reducing maintenance costs.

[0032] As one embodiment of this application, an emergency battery compartment is provided on the back of the outer casing 28, housing a replaceable spare battery, which is connected to the second processing circuit board 24 via elastic contacts. The portable device features an emergency battery compartment on the back with a replaceable spare battery, and the watch has a wireless charging coil groove on the bottom for use with an external charger, solving the problems of high maintenance costs and insufficient battery life for extended competitions in existing devices.

[0033] As one embodiment of this application, a wireless charging coil groove is provided at the bottom of the housing 11 to accommodate an external sports bracelet charger. This structure solves the problem of sudden power outages during competitions and improves reliability.

[0034] As an example, the external player foul identification information received by the wristwatch specifically comes from an officiating system that assists referees in judging player fouls, such as... Figure 5 As shown, it includes: The data acquisition module 301 collects player movement posture information in real time and transmits it to the data storage module. For example, by integrating an accelerometer (for straight-line running, collecting player acceleration in real time), a gyroscope (for directional changes, collecting player angular velocity in real time), and GPS, the device can collect data such as acceleration, angular velocity, and pressure on various parts of the player's body in real time. For instance, the accelerometer can detect sudden abnormal acceleration, potentially indicating a foul; the gyroscope can monitor the player's body rotation angle and speed, helping to determine if their body posture is compliant when contesting for the ball.

[0035] For example, by integrating the aforementioned accelerometer, gyroscope, and multimodal sensor into a player monitoring device and then integrating the device into the player's uniform, information such as the player's running distance, maximum acceleration, number of sprints, number of accelerations and decelerations, turning / changing-direction speed, and playing time can be collected and stored.

[0036] Data storage module 302 receives and stores player movement posture information sent by data acquisition module; The data processing module 303 stores the standard acceleration and angular velocity thresholds for players; obtains the real-time motion posture information of players from the data storage module; compares the real-time motion posture information with the standard acceleration and angular velocity thresholds to filter out abnormal data information; based on the abnormal data information, determines whether the player's motion state conforms to the normal game rules, identifies whether there is a potential foul, and forms auxiliary identification information. For example, the data processing module 303 obtains the player's playing time and takes the latitude and longitude data of the player's tag per second during that time; based on the possibility of latitude and longitude jumps, it determines the player's movement distance per second using the semi-sine formula; during data statistics, it automatically excludes data with a movement distance exceeding 8m / s per second and records the player tag and time point of the abnormal data and sends them back to the portable device.

[0037] The above formula for the semi-versus can be expressed as: set up, , ,

[0038] Where a is the distance the player moves per second, d is the spherical distance, and R is the average radius of the Earth. , ; The total distance a player moves during all their playing time is their total running distance. The average speed is calculated as: total running distance / playing time.

[0039] When a player's continuous movement distance is greater than 2.5 m / s, it is called the peak speed; each continuous movement distance reaching 2.5 m / s is counted as one acceleration.

[0040] Based on Tables 1 and 2, players are divided into five age groups: U7-8, U9-12, U13-14, U15-17, and the adult group. Different speeds are defined for walking, jogging, medium-speed running, high-speed running, and sprinting for each age group, with defined speed ranges. This data is compared with the players' real-time information to help identify potential fouls based on whether their movement and physical behavior conform to normal game rules. Running data outside the defined range is considered a foul. For example, if a pressure sensor detects an abnormally large impact on a player's body, and acceleration and gyroscope data indicate an abnormal direction and timing of the impact, it may indicate a pushing or other foul.

[0041] Table 1

[0042] Table 2

[0043] The data processing module 303 learns from a large number of player foul samples, such as those from five-a-side football matches, to build a foul recognition model. This model can accurately identify common fouls such as pulling, pushing, tackling, and handball. For example, for pulling, it can judge based on data features such as changes in distance between players, the point of contact, and the direction of force. For tackling, it analyzes and identifies fouls by combining factors such as the timing of the tackle, the range of motion, and the position of the player in contact. During the analysis, it can analyze the probability and patterns of fouls in different scenarios based on historical match data, providing a reference for real-time judgments.

[0044] The real-time communication module 304 transmits the auxiliary identification information generated by the data processing module to the referee's portable device via the wristwatch of this application to assist the referee in making decisions. For example, when the system identifies a potential foul, it immediately presents the relevant information and analysis results to the referee in a visual manner, including the identity of the offending player, the type of foul, the time and location of the incident, etc. For instance, when a player commits a handball foul, the system will send the player's number, the position of the handball, and the suggested penalty (direct free kick or penalty kick) to the referee's wristwatch and portable device within a very short time. The portable device screen will display clear clips of the game and annotations, allowing the referee to quickly understand the situation and make a decision. Simultaneously, the system will also provide corresponding refereeing suggestions based on the rules of the game, such as a warning, a sent-off, or a penalty kick. The referee, combining their observations on the field, makes the final decision.

[0045] The aforementioned data acquisition module includes a multimodal sensor unit, which integrates at least two of the following: an inertial measurement unit, a magnetometer, and a barometer; the data processing module fuses the data from the multimodal sensor unit to generate motion attitude information that closely approximates the actual motion.

[0046] The inertial measurement unit (IMU) includes a 3-axis accelerometer and a 3-axis gyroscope. The 3-axis accelerometer can acquire the player's acceleration data in three-dimensional space in real time, capturing not only the acceleration changes of linear motion but also calculating the player's tilt angle through the component of gravitational acceleration. The 3-axis gyroscope focuses on measuring the player's angular velocity around each coordinate axis, accurately recording the speed and direction of rotational motion, providing crucial data for analyzing the continuity and stability of movements.

[0047] Magnetometers are primarily used to assist in determining the absolute orientation of a moving object. By sensing the strength and direction of the Earth's magnetic field, a magnetometer can provide the azimuth information of the moving object relative to the Earth's magnetic north pole, effectively compensating for the orientation errors caused by drift of the inertial measurement unit during long-term movement. Especially in indoor environments without GPS signals or in complex outdoor magnetic field environments, it can significantly improve the accuracy of motion direction determination.

[0048] A barometer indirectly obtains the altitude information of a moving subject by measuring changes in atmospheric pressure in the surrounding environment. In sports scenarios, it can be used to accurately monitor a player's jump height, altitude changes during uphill and downhill movements, and other data, providing supplementary data for analyzing the spatial characteristics of sports intensity and trajectory.

[0049] The data acquisition module also includes electromyography (EMG) sensors or heart rate sensors to collect players' physiological response data; the data processing module further integrates the physiological response data with inertial motion information to help determine whether abnormal movement patterns are caused by external fouls.

[0050] To further understand the causes of abnormal player movement patterns, the data acquisition module is also equipped with electromyography (EMG) sensors or heart rate sensors to collect players' physiological response data, providing physiological evidence to determine whether abnormal movement is caused by external fouls.

[0051] It should be noted that, in this application, "comprising" or any other variation thereof is intended to cover non-exclusive inclusion, such that a method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such an article or apparatus. Without further limitations, an element defined by the phrase "comprising..." does not exclude the presence of other identical elements in the method, article, or apparatus that includes that element.

[0052] In the description of this application, unless otherwise expressly defined, terms such as "setup," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this application in conjunction with the specific content of the technical solution.

[0053] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on the differences from other embodiments. The same or similar parts between the various embodiments can be referred to each other.

[0054] This application uses specific examples to illustrate the principles and implementation methods of this utility model. The descriptions of the above embodiments are only for the purpose of helping to understand the method and core ideas of this utility model. It should be noted that for those skilled in the art, various modifications, combinations, sub-combinations, and substitutions can be made without departing from the principles of this utility model. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the scope of protection of this application.

Claims

1. A sports officiating aid device, characterized in that, Including watches and portable devices, The wristwatch includes: Shell (11); The first processing circuit board (12) is disposed within the housing (11). The first cellular network communication module (14) is connected to the first processing circuit board (12) and is used to access the mobile communication network; An interactive interface (15) is connected to the first processing circuit board (12) and is used to realize information interaction with the user; A vibration module (16) is connected to the first processing circuit board (12) for providing tactile feedback; The first NFC reading module (17) is connected to the first processing circuit board (12) and is used for near-field communication and data reading and writing; The portable device includes: Second processing circuit board (24); The second cellular network communication module (21) is connected to the second processing circuit board (24) and is used to realize mobile network data transmission and communication; The LCD display screen (22) is connected to the second processing circuit board (24) and is used to display device status, operation interface and data information; The second NFC reading module (26) is connected to the second processing circuit board (24) and is used for near-field communication and data reading and writing; A wireless data connection is established between the first cellular network communication module (14) and the second cellular network communication module (21) or between the first NFC reading module (17) and the second NFC reading module (26) to transmit the external player foul auxiliary identification information received by the wristwatch to the portable device and display it on the LCD screen (22).

2. The sports officiating aid device as described in claim 1, characterized in that, The portable device also includes a housing (28), in which the second cellular network communication module (21), the second processing circuit board (24), and the second NFC reading module (26) are all integrated.

3. The sports officiating aid device as described in claim 2, characterized in that, The outer casing (28) is provided with a sensing area corresponding to the second NFC reading module (26) and a physical button opening corresponding to the control button (23).

4. The sports officiating aid device as described in claim 1, characterized in that, A communication isolation chamber is provided inside the housing (11), and the first cellular network communication module (14) and the first NFC reading module (17) are respectively placed in independent chambers, and a metal shielding partition is provided between the two chambers.

5. The sports officiating aid device as described in claim 2, characterized in that, The outer shell (28) has an arc-shaped curved surface structure, and its curvature is adapted to the hand grip curvature; anti-slip raised stripes are provided on both sides of the outer shell (28), and the LCD display screen (22) is tilted at a 15°-20° angle to the surface of the outer shell (28).

6. The sports officiating aid device as described in claim 2, characterized in that, At the positions of the housing (11) and the outer shell (28) corresponding to the first NFC reading module (17) and the second NFC reading module (26), the sensing area is wrapped with an annular magnetic metal frame, and the surface of the sensing area is covered with a 0.08-0.12mm ceramic cover plate.

7. The sports officiating aid device as described in claim 1, characterized in that, The first processing circuit board (12) is a pluggable modular structure and is connected to the housing (11) via a guide rail type slot.

8. The sports officiating aid device as described in claim 1, characterized in that, The vibration module (16) is fixed by magnetic attraction, and the vibration intensity is 0.5g-1.0g.

9. The sports officiating aid device as described in claim 2, characterized in that, An emergency battery compartment is provided on the back of the housing (28), which contains a replaceable backup battery and is connected to the second processing circuit board (24) via a flexible contact.

10. The sports officiating aid device as described in claim 1, characterized in that, A wireless charging coil groove is provided at the bottom of the housing (11) to accommodate an external fitness tracker charger.