A portable record and analysis system of exercise track is provided. The system includes a storing instrument and an analyzing device. The storing instrument is provided for a user to carry. An accelerometer and an electronic compass are built in the storing instrument and used to measure a plurality of three dimensional acceleration data and direction data during exercise of the user. Then, a processor of the storing instrument periodically retrieves the data and combines the data with a measuring time to be a motion data. Finally the motion data is saved in a memory of the storing instrument. Afterward the storing instrument can transmit the motion data to the analyzing device by a transmission interface. A built-in track construction module of the analyzing device constructs an exercise track of the user by examining with the motion data. By the system, it may distinguish whether the track motion and calorie consumption of the user is proper and offer the objective information about sports to the user.一種可攜式運動軌跡記錄與分析系統,系統包含一數據量測器與一分析裝置。此數據量測器供使用者隨身攜帶,並利用其內建的三維加速度感測器與電子羅盤量測使用者運動時三維的加速度資料與運動方向,再透過處理器週期性擷取此等量測資料並整合擷取時間形成運動數據,最後儲存於記憶單元。之後,數據量測器可透過自身的資料傳輸介面將運動數據傳送至分析裝置,令其以內建的軌跡建構模組根據運動數據以建構使用者的運動軌跡。藉此分析使用者各項運動能量消耗和軌跡是否適當,提供使用者關於運動數據的客觀資訊。
