System and method for multi-target movement speed measurement under complex paths

Abstract

The invention provides a system and method for multi-target movement speed measurement under complex paths, and belongs to the field of physical movement speed measurement. The system comprises an acceleration measurement module, a wireless gateway and an upper computer, wherein the acceleration measurement module comprises an acceleration sensor, a controller and a wireless transceiving module; the acceleration sensor is connected with the controller; the controller is connected with the wireless transceiving module; the wireless transceiver module is connected with the wireless gateway through a wireless network; the wireless gateway is connected with the upper computer. According to the system, the real-time precision movement speed of a plurality of athletes under the complex paths such as straight lines, curves and retracing can be conveniently and quickly obtained, coaches and the athletes are assisted in effectively evaluating the movement state and technical actions of the athletes in real time, and data support is provided for evaluating the effect of a specific training method and making a further training plan.

Description

technical field [0001] The invention belongs to the field of sports speed measurement, in particular to a multi-target movement speed measurement system and method for complex paths, and is particularly suitable for real-time and accurate simultaneous measurement of multiple athletes in straight lines, curves, and reentry (straight reentry, radioactivity, etc.) The speed of movement under complex paths such as reentry, etc., can be applied to sports training and mass sports fitness. Background technique [0002] At present, commonly used speed measurement techniques and instruments generally include: segmental speed measurement system, radar speedometer, ultrasonic speedometer, photographic speed measurement, stopwatch, laser speedometer, etc. These devices have more or less limitations such as inconvenient use, slow feedback speed, and limited measurement accuracy, as follows: [0003] 1. Segmented speed measurement system: This system provides the average speed between tw...

AI Technical Summary

Problems solved by technology

These devices have more or less limitations such as inconvenient use, slow feedback speed, and limited measurement accuracy, as follows:

[0003] 1. Segmented speed measurement system: This system provides the average speed between two pairs of sensors with known spacing, and cannot provide continuous speed changes. The speed measurement accuracy depends on the number of sensors, but it is unrealistic to increase the number of sensors without limit. At present Only used for short sprint events

[0004] 2. Radar speedometer: Because radar speed measurement mainly uses the principle of electromagnetic wave reflection, it is easily disturbed by external factors, and the angle of microwave emission is wide, which greatly affects the accuracy

At the same time, it cannot be used normally in places where the target to be measured is not perpendicular to the transducer of the sensor, in windy places, and in places that require quick response. Therefore, it is basically not used in sports training occasions.

[0006] 4. Photography speed measurement: it is widely used at present, but it needs to process the image after photography, and calculate the speed according to parameters such as time and frame number. The feedback is slow, the timeliness is poor, and the use is more complicated.

[0007] 5. Positioning and speed measurement based on GPS and other systems: currently it is widely used in open-air places, but it is not suitable for indoor sports training projects

[0008] 6. Laser speedometer: It has the advantages of high precision and fast response, but this type of product is only suitable for simple paths of linear motion and speed measurement of a single target

At present, there is no technology and product that can meet the requirements of real-time and accurate simultaneous measurement of the movement speed of multiple athletes in complex paths such as straight lines, curves, and reentry (straight reentry, radial reentry, etc.)

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