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Miniature multifunctional human body attitude intelligent detecting instrument and method

A technology of human posture and intelligent detection, applied in the direction of instruments, measuring devices, measuring acceleration, etc., can solve the problems of complex composition and large-scale equipment

Inactive Publication Date: 2009-08-12
NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this type of medical instrument system is complex in composition and large in size, and exists in hospitals or academic institutions
Therefore, as a treatment method, it cannot be used as a long-term cultivation method for personal daily behavior.

Method used

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  • Miniature multifunctional human body attitude intelligent detecting instrument and method
  • Miniature multifunctional human body attitude intelligent detecting instrument and method
  • Miniature multifunctional human body attitude intelligent detecting instrument and method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0042] Judgment and detection of exercise mode:

[0043] The current state of motion can be judged by measuring the horizontal acceleration and vertical acceleration values. Horizontal acceleration can directly reflect the speed of movement, but it is not reliable to judge movement solely by this measurement value, for example, it cannot be accurately judged when the subject is riding a bicycle. At this time, it can cooperate with the measurement of vertical acceleration, because people will be accompanied by body undulations during exercise, and the frequency and amplitude of undulations will also change with the exercise state. Therefore, by combining the measured values ​​of the horizontal and vertical accelerations, the current motion state of the subject can be judged more accurately.

[0044] When both of them change in a small range close to zero, it is judged to be basically in a static state; when the horizontal movement speed is not large (for example: <1.0m / s), and...

Embodiment 2

[0046] Detection of pace and frequency:

[0047] For parameter detection during walking or running, the most critical parameters are speed and frequency. This embodiment will specifically provide methods for implementing the detection of two parameters. Place the tester on the back side of the lumbar spine, because the lumbar spine is the most stable during exercise, and it is the most suitable detection point to measure the pace. Because the measurement uses an acceleration sensor, the speed information needs to be calculated, the specific formula is as follows:

[0048] v=v 0 +∫ t adt

[0049] where: v 0 is the initial velocity at each measurement moment, and a is the measured horizontal acceleration value. Since this measurement is performed continuously, v 0 It is the speed value at the previous moment, which is a known quantity, and t can be set according to needs, taking one or more fluctuation times. It should be pointed out that the speed calculated according t...

Embodiment 3

[0053] Military posture detection:

[0054] This embodiment mainly involves the detection of soldiers' standing posture, sitting posture and walking posture and upper body posture. Wear the detector on the upper body of the subject to ensure that it can move synchronously with the upper body. In this embodiment, the upper body is regarded as a rigid body, and the movement of any point on it can be regarded as the movement of the entire rigid body. With the measuring instrument as the origin, a spatial Cartesian coordinate system is established by using three mutually perpendicular acceleration axes. In low-intensity motion or relatively static state, by measuring the static acceleration changes in the three-axis direction, determine the relative relationship between the detected attitude coordinate system and the initial attitude, and judge the rationality of the current attitude. The attitude can be determined by the following formula:

[0055] θ xy =arccos(a x +a y ) / g...

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Abstract

The invention discloses a miniature multifunctional human body posture intelligent detector and a detection method, and belongs to the field of human body posture detection. The detector comprises a posture sensing and detecting unit, an A / D converting unit, an information processing unit, a memory unit, an input unit, an output unit and a power supply unit, and is characterized in that: sensors adopted by the posture sensing and detecting unit are a horizontal accelerometer and a vertical accelerometer. The detector utilizes accelerometers as posture sensors, and provides kinematical parameters under partial motion states for examinees, wherein the motion states mainly include running, rapid walking, jumping and the like, and the parameters include running or walking frequency, kinematic velocity, jumping height and distance, and angle and speed of rising to jump. The detector can provide posture information in the maximum range for people in need of posture correction, comprises posture detection under various conditions such as relative rest, walking or taking a bus and the like of the examinees, and realizes prompt type active posture correction and good habit cultivation.

Description

technical field [0001] The invention relates to a detector and a detection method for human body motion state and posture parameters, belonging to the field of human body posture detection. Real-time acquisition of motion and human body posture is realized by the posture detection sensing unit composed of accelerometer, and the data processing algorithm built in the microprocessor is used to analyze and process the data, and judge the current motion state and body posture of the detected person, and give the analysis result . Background technique [0002] Human motion posture detection provides quantitative human motion analysis information for sports science and rehabilitation medicine. There are generally four modern human motion detection methods: 1. A multi-view synthesis device in a fixed field of view, which generally captures human motion images from different angles through camera lenses distributed in a specific space, and then reconstructs the motion process accor...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01P15/00G01P13/00
Inventor 曹力李睿徐森
Owner NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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