Intelligent deviation correction and early warning system for blind short race

Abstract

This invention provides an intelligent deviation correction and early warning system for blind sprint events, belonging to the field of assistive sports intelligent equipment technology. The invention includes: a waist belt main body, a voice early warning terminal, and a visual acquisition module, a core processing module, a data storage module, a wireless communication module, and a power supply module installed on the waist belt main body. The invention uses the visual acquisition module mounted on the waist belt main body to acquire real-time track images. The core processing module calls the deviation correction program built into the data storage module to identify track boundaries and calculate the real-time distance between the runner and the track edge, accurately judging the running deviation status. Then, the wireless communication module provides real-time voice prompts to the voice early warning terminal to warn of the risk of deviation. This invention has a simple structure, fits well, and has a fast response speed. It can replace human running companions and is suitable for the high-intensity, high-precision sports needs of blind 100-meter sprint events, significantly improving the independence, fairness, and safety of blind events, and has promotional and popularization value.

Description

Technical Field

[0001] This invention relates to an intelligent correction and early warning system for blind sprint events, belonging to the field of assistive sports intelligent equipment technology. Background Technology

[0002] In the existing Olympic sprint event system for the blind, the 100-meter sprint and other sprint events all adopt the "guided running" assistance mode, that is, a sighted guide runs in sync with the blind athlete, and guides the athlete to maintain the direction of the track and avoid running out of the track boundary through physical traction, verbal prompts and other means.

[0003] The traditional human-assisted running model has many unavoidable technical flaws and drawbacks in competition: First, human-assisted running can disrupt rhythm, as the running speed, stride frequency, and breathing rhythm of the assisted runners are difficult to synchronize completely with the blind athletes, easily disrupting the athletes' competitive rhythm and affecting their performance; Second, there are limitations in physical contact, as traditional traction guidance involves pulling and restraint, which not only affects the athletes' running posture but also poses safety hazards such as collisions and falls; Third, the fairness of the competition is difficult to guarantee, as differences in the guidance experience and reaction speed of different assisted runners can lead to inconsistent assistance effects for different athletes, violating the principle of fair competition; Fourth, human guidance has a response delay, and when faced with slight deviations in the high-speed running of athletes, human visual judgment and verbal prompts are lagging behind, unable to achieve millisecond-level accurate warnings, making it difficult to adapt to the high-intensity, high-speed competitive scenario of the 100-meter sprint.

[0004] Currently available navigation devices for the blind are mostly suitable for everyday travel scenarios, but they suffer from insufficient specificity, slow dynamic response, and poor adaptability to different sports. They cannot meet the needs for accurate track boundary recognition and real-time deviation warnings during high-speed running. There is currently no intelligent navigation device specifically designed for blind sprint events that can completely replace human sprinters. Therefore, developing an intelligent deviation correction and warning system based on visual recognition, specifically designed for blind 100-meter sprint events, is an urgent need to address the pain points of existing technologies and optimize the competitive system for blind events. Summary of the Invention

[0005] The purpose of this invention is to overcome the technical defects of existing manual accompaniment running modes and traditional navigation devices for the blind, as well as the technical defects of existing blind Olympic 100-meter races that rely on accompaniment personnel for guidance, such as rhythm interference, contact restrictions, insufficient fairness of the competition, and poor adaptability. This invention provides an intelligent deviation correction and early warning system for blind sprint races, which can accurately calculate the deviation distance of blind runners during the 100-meter race and provide real-time voice warnings. It completely replaces manual accompaniment guidance, eliminates rhythm interference, safety hazards, and fairness issues caused by human intervention, adapts to high-speed racing scenarios, and improves the competitive independence, safety, and fairness of blind races.

[0006] The objective of this invention is achieved through the following technical solution:

[0007] An intelligent deviation correction and early warning system for blind sprint events is characterized by comprising: a waist belt body, a voice early warning terminal, and a visual acquisition module, a core processing module, a data storage module, a wireless communication module, and a power supply module installed on the waist belt body; the signal output terminals of the visual acquisition module and the data storage module are both connected to the signal input terminal of the core processing module, the signal output terminal of the core processing module is connected to the signal input terminals of the data storage module and the wireless communication module respectively, the signal output terminal of the wireless communication module is connected to the signal input terminal of the voice early warning terminal, and the power supply module is electrically connected to the visual acquisition module, the core processing module, the data storage module, and the wireless communication module respectively;

[0008] The visual acquisition module is used to acquire panoramic images of the track in front of the athlete in real time, covering the left and right boundary areas of the track, and the acquisition frame rate is adapted to the dynamic recognition requirements of 100-meter high-speed running.

[0009] The core processing module controls the vision acquisition module to acquire real-time images of the runway, calls the correction program in the data storage module to analyze the acquired images in real time, and quickly and dynamically calculates the vertical distance between the human body center and the left and right runway boundaries; when human body deviation is detected and the distance is less than the preset safety threshold, a correction warning command in the corresponding direction is generated.

[0010] The data storage module has a built-in correction program to provide computational data support for the core processing module;

[0011] The wireless communication module is used to connect to the voice warning terminal via wireless pairing to achieve zero-delay voice data transmission;

[0012] The power supply module is used to continuously supply power to the vision acquisition module, core processing module, data storage module and wireless communication module to meet the power requirements of the entire event;

[0013] The voice warning terminal is used to receive the correction warning instructions transmitted by the core processing module and to clearly broadcast in real time the distance between the athlete and the track boundary, the direction of deviation, and the correction prompts.

[0014] Preferably, the main body of the belt is a ring-shaped elastic belt, and the visual acquisition module is a miniature high-definition camera. The miniature high-definition camera is fixedly installed at the center of the front side of the main body of the belt, with the lens of the miniature high-definition camera facing the ground track.

[0015] Preferably, the core processing module is an embedded CPU, the wireless communication module is a Bluetooth communication module, and the embedded CPU, Bluetooth communication module and data storage module are integrated and fixed inside the front side of the belt body. The embedded CPU is electrically connected to the miniature high-definition camera, Bluetooth communication module and data storage module respectively.

[0016] Preferably, the power supply module is a lithium battery power supply module, which is integrated at the tail of the belt body and is electrically connected to and supplies power to the miniature high-definition camera, embedded CPU, Bluetooth communication module and data storage module respectively.

[0017] Preferably, the voice warning terminal is a Bluetooth headset, which is connected to the embedded CPU via a Bluetooth communication module.

[0018] Preferably, the data storage module has a built-in correction program including: a track boundary recognition algorithm, a projection distance calculation algorithm, and a warning voice data packet. The core processing module calls the correction program, uses the track boundary recognition algorithm to identify the track and track boundary in the image captured by the miniature high-definition camera, and stores the track width parameters. It uses the projection distance calculation algorithm to calculate the projection distance from the miniature high-definition camera to the track boundary in real time, and uses the warning voice data packet to prompt blind athletes to correct their deviation in time.

[0019] Preferably, the core processing module quickly calculates the vertical projection distance between the human body center and the left and right boundaries of the track based on the projection distance calculation algorithm in the correction program, and performs threshold judgment. If the distance is greater than 50cm, there is no warning and monitoring continues. If the distance is between 30cm and 50cm, it is a slight deviation, and a fine-tuning prompt is broadcast through a warning voice data packet. If the distance is less than 30cm, it is close to going out of bounds, and an emergency correction prompt is broadcast.

[0020] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0021] (1) Completely replaces human companions and avoids the drawbacks of the traditional model. This invention achieves fully automatic navigation and early warning through machine vision intelligent recognition, eliminating the need for companions to run in sync, completely eliminating problems such as human rhythm interference, limb restraint, and response delay, allowing blind athletes to complete the competition independently and greatly improving their competitive autonomy.

[0022] (2) Accurate recognition and efficient response, suitable for high-speed events. This invention uses high-speed image acquisition and real-time algorithm calculation, which can accurately capture the slight deviation in running during a 100-meter high-speed sprint, and output early warning prompts in milliseconds. The recognition accuracy and response speed far exceed human judgment, and it is perfectly suitable for the high-intensity scene of sprint racing.

[0023] (3) Ensure absolute fairness in the competition. The standardized and intelligent identification and early warning logic of the equipment eliminates subjective differences from human intervention. All athletes use the same standard correction and early warning auxiliary equipment, which completely solves the problem of unfairness in the competition caused by differences in the experience of human guides and standardizes the competition standards for blind athletes.

[0024] (4) Lightweight and highly adaptable to sports. The entire device is integrated into the main body of the belt, with a lightweight design that fits the waist perfectly. It is weightless and does not cause any jamming, so it does not affect the athlete's running posture or limb exertion. The Bluetooth headset provides wireless transmission without the constraints of wires, making it fully compatible with the needs of competitive sports. This invention has a simple structure, fits well, and has a fast response speed. It can completely replace human running guides, avoiding the speed limitations and rhythm interference caused by human guidance. It is suitable for the high-intensity and high-precision sports needs of blind 100-meter sprint events, greatly improving the independence, fairness, and safety of blind events. It has extremely high value for the promotion and popularization of events.

[0025] (5) High safety and stable function. The entire process is contactless intelligent guidance, avoiding the safety hazards of collision, pulling and falling caused by human companions. The equipment has low latency and high stability, and can work continuously and stably to meet the needs of the entire event.

[0026] (6) Application scenarios: This invention is particularly suitable for unassisted navigation scenarios in speed events such as the 100-meter sprint at the Olympic Games for the blind. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the overall structure of an intelligent correction and early warning system for blind sprint events according to the present invention.

[0028] Figure 2 This is a block diagram of the hardware module connection architecture of an intelligent correction and early warning system for blind sprint events according to the present invention.

[0029] In the attached diagram, 1 represents the main body of the belt, 2 represents the miniature high-definition camera, 3 represents the embedded CPU, 4 represents the Bluetooth communication module, 5 represents the data storage module, 6 represents the lithium battery power supply module, and 7 represents the Bluetooth headset. Detailed Implementation

[0030] The present invention will be further described in detail below with reference to the accompanying drawings: This embodiment is implemented under the premise of the technical solution of the present invention, and detailed implementation methods are given, but the protection scope of the present invention is not limited to the following embodiments.

[0031] like Figure 1 and Figure 2 As shown in the figure, the intelligent correction and early warning system for blind sprint events involved in this embodiment includes: a waist belt body 1, a visual acquisition module, a core processing module, a wireless communication module, a data storage module, a power supply module, and a voice early warning terminal.

[0032] The visual acquisition module is a miniature high-definition camera 2, which is fixedly installed in the center of the front side of the waist belt body 1. The lens of the miniature high-definition camera 2 faces the ground track and is used to acquire panoramic images of the track in front of the athlete in real time, covering the left and right boundary areas of the track. The acquisition frame rate is adapted to the dynamic recognition requirements of 100-meter high-speed running.

[0033] The core processing module is an embedded CPU3, which is fixedly integrated inside the waist belt body 1 and electrically connected to the vision acquisition module, data storage module, and wireless communication module. It is the core computing and control unit of the device.

[0034] The data storage module 5 has a built-in correction program to provide computational data support for the core processing module. The correction program includes a track boundary recognition algorithm, a projection distance calculation algorithm, and a warning voice data packet. The core processing module calls the correction program to complete the following tasks: the image captured by the miniature high-definition camera 2 is used by the track boundary recognition algorithm to identify the track and track boundary and store the track width parameters; the projection distance calculation algorithm calculates the projection distance from the miniature high-definition camera 2 to the track boundary in real time; and the graded warning voice data packet prompts the blind athlete to correct the deviation in time.

[0035] The wireless communication module is a Bluetooth communication module 4, which uses Bluetooth 5.3 low-latency communication module and is electrically connected to the core processing module. It connects to the dedicated Bluetooth headset 7 through wireless pairing to achieve zero-latency voice data transmission.

[0036] The power supply module is a lithium battery power supply module 6, which uses a miniature rechargeable lithium battery and is integrated into the tail of the waist belt body 1. It continuously supplies power to the miniature high-definition camera 2, embedded CPU 3, Bluetooth communication module 4 and data storage module 5 to meet the battery life requirements of the entire event.

[0037] The voice warning terminal is a Bluetooth headset 7, which is a lightweight in-ear low-latency headset used to receive warning commands transmitted by the CPU and to clearly broadcast in real time the distance between the athlete and the track boundary, the direction of deviation, and correction prompts.

[0038] The core workflow of this invention is as follows: After the intelligent deviation correction and early warning system for blind sprint events is powered on, the embedded CPU 3 calls the deviation correction program in the data storage module 5 to control the miniature high-definition camera 2 to continuously collect real-time images of the track; the track boundary recognition algorithm analyzes the collected images in real time, and the projection distance calculation algorithm quickly and dynamically calculates the vertical distance between the center of the human body and the left and right track boundaries; when a human body deviation is detected and the distance is less than a preset safety threshold, a deviation correction early warning command in the corresponding direction is immediately generated and transmitted to the Bluetooth headset 7 through the Bluetooth communication module 4, reminding the athlete to adjust the running direction in real time and always stay within the safe area of ​​the track.

[0039] The specific algorithm steps for implementing the correction program are as follows:

[0040] Step 1: The track boundary recognition algorithm analyzes the acquired track images in real time to identify the track color, boundary color, and track width.

[0041] Step 2: The projection distance calculation algorithm quickly calculates the vertical distance between the center of the human body and the left and right boundaries of the track.

[0042] Step 3: Threshold determination: if the distance is more than 50cm, there is no warning and monitoring continues; if the distance is 30cm to 50cm, there is a slight deviation and a fine-tuning prompt is broadcast; if the distance is less than 30cm, there is an imminent boundary violation and an emergency correction prompt is broadcast.

[0043] Step 4: Voice warning broadcast, athletes correct their direction.

[0044] Step 5: Real-time monitoring in a loop, with dynamic iterative operation throughout the entire process.

[0045] Example 1

[0046] This embodiment presents an intelligent deviation correction and early warning system for blind sprint events. The system features an integrated wearable design. The main body 1 is a ring-shaped elastic waistband made of highly elastic, breathable, and skin-friendly material, suitable for athletes with different waist sizes. When worn, it fits snugly around the waist, preventing movement and not hindering limb movement. The main body 1 serves as the overall load-bearing base, conforming to the human waistline.

[0047] The miniature high-definition camera 2 uses a wide-angle high-speed camera with a frame rate of 60 frames per second. Its field of view covers a 1.5-meter radius to the left and right of the running track, fully covering the width of a standard 100-meter track. It can clearly capture the white boundary lines of the track, ensuring clear image acquisition even at high speeds. The camera is mounted on the front of the main body 1 of the belt via a miniature mounting bracket, and its tilt angle can be finely adjusted to ensure the lens is perpendicular to the ground and track.

[0048] The embedded CPU3 uses a low-power, high-speed industrial control chip with a main frequency that meets the requirements of real-time image analysis and algorithm operation. It can quickly process dynamic images captured by the camera, complete runway boundary extraction, distance calculation, and offset judgment in real time, with a calculation latency of less than 20ms, and achieve imperceptible real-time early warning.

[0049] The data storage module 5 has a built-in fixed correction program. The program recognizes the color of the track, the boundary color, and the track width, and sets a safe distance threshold: when the athlete's body is 30cm-50cm away from the track boundary, a mild warning is triggered, and the program announces "Slight deviation, please adjust slightly inward"; when the distance is less than 30cm, an emergency warning is triggered, and the program announces "About to go out of bounds, please quickly straighten the direction"; when driving normally in the center, there are no extra announcements to avoid interfering with the athlete's focus on the competition.

[0050] The Bluetooth communication module 4 uses the low-latency Bluetooth transmission protocol and is paired with the dedicated lightweight Bluetooth headset 7. The transmission latency is less than 10ms, and the warning commands are synchronized in real time. The headset adopts an in-ear design to ensure it is not easy to fall out during running. The volume is clear and soft, without being harsh or affecting the athlete's hearing.

[0051] The embedded CPU3, Bluetooth communication module4, and data storage module5 are integrated and fixed on the inner front side of the belt, corresponding to the position behind the camera, and are installed in a hidden manner with no exposed protrusions.

[0052] The lithium battery power supply module 6 uses a high-capacity micro lithium battery, supporting continuous operation for more than 4 hours, fully meeting the needs of training and competition throughout the 100-meter event. It is equipped with a Type-C fast charging interface for convenient charging and features overcharge and overheat protection to ensure safe use during competitions. The lithium battery power supply module 6 is embedded inside the tail of the main body 1 of the belt, providing symmetrical weight distribution to ensure wearing balance.

[0053] The specific usage process of the device is as follows: Before the competition, the athlete wears the belt, adjusts the angle of the miniature high-definition camera 2 to face the track, turns on the device power, and automatically completes the pairing of the Bluetooth headset 7; after the device initializes, it automatically enters the track recognition and monitoring mode; after the athlete starts running, the miniature high-definition camera 2 continuously collects track images, and the embedded CPU 3 analyzes and calculates them in real time to dynamically monitor the running deviation status; once the deviation is detected to exceed the safe range, the corresponding correction prompt is immediately broadcast through the Bluetooth headset 7 to guide the athlete to correct the running direction, realizing fully automatic intelligent navigation and early warning without human intervention throughout the entire process.

[0054] The device of this invention has been tested and is suitable for high-speed running scenarios, such as 100-meter dashes. It provides accurate recognition, timely warnings, and is easy to wear. It can completely replace the traditional manual running companion mode and is applicable to blind sprint events in the Olympic Games for the Blind, various levels of Paralympic Games, and daily professional training scenarios.

[0055] The above description is merely a preferred embodiment of the present invention. These specific embodiments are different implementations based on the overall concept of the present invention, and the scope of protection of the present invention is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in the present invention should be included within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the scope of the claims.

Claims

1. An intelligent deviation correction and early warning system for blind sprint events, characterized in that, include: The waist belt body (1), the voice warning terminal, and the visual acquisition module, core processing module, data storage module (5), wireless communication module and power supply module installed on the waist belt body (1); The signal output terminals of the visual acquisition module and the data storage module (5) are connected to the signal input terminal of the core processing module. The signal output terminal of the core processing module is connected to the signal input terminals of the data storage module (5) and the wireless communication module, respectively. The signal output terminal of the wireless communication module is connected to the signal input terminal of the voice warning terminal. The power supply module is electrically connected to the visual acquisition module, the core processing module, the data storage module (5) and the wireless communication module, respectively. The visual acquisition module is used to acquire panoramic images of the track in front of the athlete in real time, covering the left and right boundary areas of the track, and the acquisition frame rate is adapted to the dynamic recognition requirements of 100-meter high-speed running. The core processing module is used to control the visual acquisition module to acquire real-time images of the runway, call the correction program in the data storage module (5) to analyze the acquired images in real time, and quickly and dynamically calculate the vertical distance between the center of the human body and the left and right runway boundaries; when the human body is detected to be deviated and the distance is less than the preset safety threshold, a correction warning instruction in the corresponding direction is generated. The data storage module (5) has a built-in correction program to provide computational data support for the core processing module; The wireless communication module is used to connect to the voice warning terminal via wireless pairing to achieve zero-delay voice data transmission. The power supply module is used to continuously supply power to the visual acquisition module, the core processing module, the data storage module (5) and the wireless communication module to meet the endurance requirements of the entire event; The voice warning terminal is used to receive the correction warning instructions transmitted by the core processing module and to clearly broadcast in real time the distance between the athlete and the track boundary, the direction of deviation, and the correction prompts.

2. The intelligent deviation correction and early warning system for blind sprint events according to claim 1, characterized in that, The main body of the belt (1) is a ring-shaped elastic belt, and the visual acquisition module is a miniature high-definition camera (2). The miniature high-definition camera (2) is fixedly installed in the center of the front side of the main body of the belt (1), and the lens of the miniature high-definition camera (2) faces the ground track.

3. The intelligent deviation correction and early warning system for blind sprint events according to claim 2, characterized in that, The core processing module is an embedded CPU (3), and the wireless communication module is a Bluetooth communication module (4). The embedded CPU (3), Bluetooth communication module (4) and data storage module (5) are integrated and fixed inside the front side of the waist belt body (1). The embedded CPU (3) is electrically connected to the miniature high-definition camera (2), Bluetooth communication module (4) and data storage module (5) respectively.

4. The intelligent deviation correction and early warning system for blind sprint events according to claim 3, characterized in that, The power supply module is a lithium battery power supply module (6), which is integrated at the tail of the waist belt body (1) and is electrically connected to and powered by the miniature high-definition camera (2), the embedded CPU (3), the Bluetooth communication module (4) and the data storage module (5).

5. The intelligent deviation correction and early warning system for blind sprint events according to claim 4, characterized in that, The voice warning terminal is a Bluetooth headset (7), which is connected to the embedded CPU (3) via a Bluetooth communication module (4).

6. The intelligent deviation correction and early warning system for blind sprint events according to claim 5, characterized in that, The data storage module (5) includes a built-in correction program: a track boundary recognition algorithm, a projection distance calculation algorithm, and a warning voice data packet. The core processing module calls the correction program, uses the track boundary recognition algorithm to identify the track and track boundary in the image collected by the miniature high-definition camera (2), and stores the track width parameters. It uses the projection distance calculation algorithm to calculate the projection distance from the miniature high-definition camera (2) to the track boundary in real time, and uses the warning voice data packet to prompt blind athletes to correct their deviation in time.

7. The intelligent deviation correction and early warning system for blind sprint events according to claim 6, characterized in that, The core processing module quickly calculates the vertical projection distance between the human body center and the left and right boundaries of the track based on the projection distance calculation algorithm in the correction program, and performs threshold judgment. If the distance is greater than 50cm, there is no warning and continuous monitoring is performed. If the distance is between 30cm and 50cm, it is considered a slight deviation, and a fine-tuning prompt will be given by broadcasting a warning voice data packet. If the distance is less than 30cm, it indicates that the vehicle is about to go out of bounds, and an emergency correction notice will be broadcast.

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