A Foot Motion Recognition Method Based on Three-axis Accelerometer
A technology of axis acceleration and motion recognition, applied in the field of motion recognition, can solve the problem of not being able to recognize the posture of a person's feet when they are moving, so as to avoid sports sprains and ensure the accuracy of step counting.
Active Publication Date: 2020-04-14
浙江利尔达物芯科技有限公司
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Problems solved by technology
[0003] The purpose of the present invention is to overcome the technical problem that the three-axis acceleration sensor installed in the current smart running shoes can only simply count steps and cannot recognize the landing posture of the foot when people are exercising, and provides a foot movement recognition method based on the three-axis acceleration sensor. It can recognize the landing posture of the foot when people are exercising, so that users can understand their walking or running posture
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Embodiment
[0026] Embodiment: A foot movement recognition method based on a three-axis acceleration sensor in this embodiment, the three-axis acceleration sensor is arranged in the shoe and the positive direction of the X-axis is toward the front of the shoe body, and the positive direction of the Y-axis is toward the left or right side of the shoe body , the positive direction of the Z axis is vertically upward, such as figure 1 shown, including the following steps:
[0027] S1: The microprocessor reads the detection data output by the three-axis acceleration sensor, and selects the corresponding data for processing according to the human motion state. The initial setting of the human motion state is walking state. The XYZ three-axis combined acceleration data is processed. When the human body is in a fast running state, only the X-axis acceleration data is selected for processing;
[0028] S2: The microprocessor draws the acceleration change curve according to the selected data, and d...
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The invention discloses a footstep movement identification method based on a triaxial acceleration sensor. The method comprises the following steps: S1, reading detection data output from the triaxial acceleration sensor by a microprocessor, and processing corresponding data selected according to a body kinematic state; S2, drawing an acceleration change curve according to the selected data by the microprocessor, detecting the peak of wave in the acceleration change curve and determining the falling time of the foot according to the peak of the wave; S3, calculating the falling posture of the foot by the microprocessor; S4, judging the current body kinematic state by the microprocessor and setting. According to the method of the invention, the falling posture of the foot of people during movement can be identified, so that the convenience is brought to a user to know the self-postures of walking and running.
Description
technical field [0001] The invention relates to the technical field of motion recognition, in particular to a step motion recognition method based on a three-axis acceleration sensor. Background technique [0002] Many modern people pay great attention to their daily exercise. As a monitoring method to effectively record and monitor exercise, step counting is widely used in smart running shoes. Existing smart running shoes are equipped with a three-axis acceleration sensor inside, but they can only simply count steps and cannot recognize the landing posture of the foot during exercise, which is not conducive for users to understand their walking or running posture. Contents of the invention [0003] The purpose of the present invention is to overcome the technical problem that the three-axis acceleration sensor installed in the current smart running shoes can only simply count steps and cannot recognize the landing posture of the foot when people are exercising, and provid...
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IPC IPC(8): A61B5/11A63B71/06
CPCA61B5/1121A61B5/1123A61B5/6807A61B5/7235A63B71/0619A63B2220/40A63B2230/62
Inventor 华高坚李磊磊陈顺平蔡盛贵何佳徐毅沈帅帅
Owner 浙江利尔达物芯科技有限公司