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    • 6. 发明申请
    • Sensor-Based Athletic Activity Measurements
    • 基于传感器的运动活动测量
    • US20130006583A1
    • 2013-01-03
    • US13175216
    • 2011-07-01
    • Aaron B. WeastJames M. Mullin
    • Aaron B. WeastJames M. Mullin
    • G06F15/00
    • A63B24/0062A61B5/1036A61B5/112A61B5/1123A61B5/486A61B5/6807A61B5/7257A61B2503/10A63B2024/0065A63B2220/20A63B2220/836A63B2230/75
    • Determining pace or speed based on sensor data may include determining an amount of contact time a user's foot has with a workout surface such as the ground. Contact time may be determined by identifying samples in the sensor data that correspond to various events such as a heelstrike, a toe-off and a subsequent heelstrike. In one example, these events may be identified by determining a sequence of three sample values (e.g., a triplet) that exceeds corresponding thresholds. The validity of an identified triplet (e.g., heelstrike, toe-off and heelstrike) may be confirmed by determining whether a difference between a last event sample and a middle event sample is greater than a difference between the middle event sample and an initial event sample. Once confirmed, a contact time may be determined from the triplet. A linear or non-linear relationship may then be applied to the contact time to determine a speed or pace.
    • 基于传感器数据确定速度或速度可以包括确定用户的脚具有诸如地面的锻炼表面的接触时间量。 接触时间可以通过识别传感器数据中对应于各种事件的样品来确定,诸如脚跟,脚趾和随后的脚后跟。 在一个示例中,可以通过确定超过相应阈值的三个样本值(例如,三元组)的序列来识别这些事件。 可以通过确定最后事件样本和中间事件样本之间的差异是否大于中间事件样本和初始事件样本之间的差异来确认识别的三元组(例如,脚跟,脚趾和脚跟)的有效性 。 一旦确认,可以从三元组确定接触时间。 然后可以将线性或非线性关系应用于接触时间以确定速度或速度。