Sit-up assessment system

An examination system and detection system technology, applied in the field of sports assessment system, can solve the problems of slow rhythm, easy interference of infrared sensors, inconvenient use, etc.

Inactive Publication Date: 2020-10-30
NANJING LEKTEC ENG DATA TECH
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  • Abstract
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  • Claims
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Problems solved by technology

[0002] In today's information age, when colleges and universities organize sit-up examinations, the traditional timing and counting methods can no longer meet the fast-paced requirements of today. Manual counting, manual timing, manual filling and registration, and one examiner can only Corresponding to a candidate, both are the reasons for slowing down the pace
[0003] Therefore, there are some automatic counting sit-u

Method used

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  • Sit-up assessment system

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Embodiment 1

[0026] The assessment method of the sit-up assessment system comprises the following steps:

[0027] Step 1) after the detection equipment receives the test system and sends the opening assessment command through the wireless gateway, it continuously collects the three-axis acceleration value detected by the acceleration sensor and the three-axis angular velocity value detected by the gyroscope sensor;

[0028] Step 2) three-axis acceleration: the three-axis acceleration values ​​are mutually orthogonal vectors, the vector sum a of the mutually orthogonal vectors is taken, and the acceleration caused by the force movement of the detection device itself is eliminated by a filtering algorithm, Using the principle that the direction of gravitational acceleration is constant, the vector and a are approximately represented as gravitational acceleration, and then the swing angle of the vector and a over time is calculated through a unique algorithm, and the swing angle is the swing a...

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Abstract

The invention discloses a sit-up assessment system. The system comprises a detection system, a computer and a score display. The detection system and the counter are connected with a wireless gatewaythrough Zigbee. The wireless gateway is connected with the computer through a serial port; and an examination system is installed in the computer. The computer is connected with the score display through a VGA cable. The detection system comprises a plurality of detection devices, each detection device comprises an acceleration sensor and a gyroscope sensor, the detection devices are fixed to thewaist of a human body, the minimum sit-up angle alpha is set by the detection devices, when the angle between the human body and the horizontal plane is larger than or equal to alpha, one is added tocounting, and otherwise counting is not conducted. According to the system, digital intelligence of assessment is achieved, manual timing and counting are not needed, assessment testing and automaticscore collecting, reporting and generating are all achieved through the measuring device, the manual workload and personal errors are greatly reduced, and the chance of human cheating is reduced.

Description

technical field [0001] The invention relates to a sports assessment system, in particular to a sit-up assessment system. Background technique [0002] In today's information age, when colleges and universities organize sit-up examinations, the traditional timing and counting methods can no longer meet the fast-paced requirements of today. Manual counting, manual timing, manual filling and registration, and one examiner can only Corresponding to a candidate, it is the reason for slowing down the rhythm. [0003] Therefore, there are some automatic counting sit-up devices on the market. These devices basically use infrared sensors for detection, but the infrared sensors have the disadvantage of being susceptible to interference. For example, under sunlight, the infrared sensor will cause false detection. In addition, the infrared sensor method also needs to adjust the position of the sensor according to the height and shape of the person, which is very inconvenient to use. ...

Claims

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Application Information

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IPC IPC(8): A63B23/12A63B71/06
CPCA63B23/1218A63B71/0619A63B71/0669
Inventor 杜国平顾中林史卫庆顾明珠
Owner NANJING LEKTEC ENG DATA TECH
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