A single-step force state test extraction method under continuous gait
A state test and extraction method technology, applied in the direction of measuring force components, special data processing applications, instruments, etc., to achieve scientific and rapid extraction, improve test extraction accuracy, and high precision
Active Publication Date: 2021-07-09
HUAIYIN INSTITUTE OF TECHNOLOGY
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Problems solved by technology
By associating the reaction force F z , adaptively set the search threshold, which solves the measurement error caused by the difference in the measurement load
Method used
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[0026] The technical solution of the present invention will be further introduced below in conjunction with the accompanying drawings and specific implementation methods.
[0027] figure 1 It is a method flowchart of the present invention, comprising the following steps:
[0028] a. Use relevant measuring devices to collect and store the force and moment values of each dimension synchronously, and the vertical ground reaction force F z must be included;
[0029] b. Search and find the ground reaction force F from the stored data z The maximum value of F p and the corresponding position I p ;
[0030] c. Judgment F p Whether it meets the set trigger threshold F min , if satisfied, go to the next step, otherwise end;
[0031] In one embodiment, the trigger threshold F min The setting is obtained through experiments. The person with the lightest weight in the application space is selected to generate force to obtain the waveform of the collected data, and the value of ...
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The present invention disclosed a method of ordering and extraction method of order -step force under continuous gait, including steps: synchronize and store each Weiwei and its torque value in the order of time; search and find the stored ground reactive storage Fede Fit Fit F z The maximum value f p The corresponding storage location I p ; Determine f p Whether it is greater than the set trigger calendar F min If you get more than entering the next step, it will end; min From i p Start, search forward and backward, until its F z <Fs min , Its corresponding point position is determined as i a And I b ; Extract all dimensions testing and test torque in I i a And I b Data as a single -step value in this time, and then all in I i a And I b Delete the test data; repeat the aforementioned search to find ground reaction F z The maximum value is until the cycle jumps out. The present invention uses the measured vertical ground reactive firation F z The non -negative characteristics of the single gait force are effectively extracted. This technology has very practical value in solving scientific research and engineering issues of human gait testing.
Description
technical field [0001] The invention relates to a test and extraction method of an active force state, in particular to a single-step active force state test and extraction method under continuous gait. Background technique [0002] With the development of society, architects are constantly pursuing the slender and beautiful appearance of structures in the process of civil engineering design, which brings problems that the scale of structural systems is increasing, and the resonant frequency and damping energy dissipation capacity of structures are decreasing. Small, when the frequency is reduced to a certain extent and close to the human excitation frequency, it is easy to cause resonance, which brings many problems of unsuitable structural use and structural damage. In order to explore the vibration mechanism of the structure under the action of pedestrians, engineers and researchers need to test the reaction force generated by the human feet on the structure to extract th...
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IPC IPC(8): G01L5/16G06F16/2455G06F16/28
CPCG01L5/16G06F16/24565G06F16/283
Inventor 高延安
Owner HUAIYIN INSTITUTE OF TECHNOLOGY