| 摘要 |
A system for monitoring physical performance of users comprising a central unit (100) connected to a plurality of peripheral units (200; 700), each one of which is provided with a respective sensor (300) configured to acquire at least one physical and/or physiological parameter, the system being characterised in that each peripheral unit (200; 700) comprises a microprocessor (210), including a time stamp counter configured to generate time stamps, that is connected to digital data acquisition circuitry configured to be connected to the respective sensor (300) for outputting digital data related to at least one acquisition of the respective sensor (300), each peripheral unit (200; 700) being configured to send said digital data, along with a time stamp generated by its time stamp counter at the same time as said at least one acquisition by the sensor, to the central unit (100), the central unit (100) including a synchronisation generator (120) configured to synchronise each peripheral unit (200; 700) by sending to the latter an initial synchronisation signal and one or more subsequent synchronisation signals on a respective synchronisation line (430), whereby the connection (400) between each peripheral unit (200; 700) and the central unit (100) include a respective synchronisation line (430), each subsequent synchronisation signal being sent to each peripheral unit (200; 700) when a drifting of its time stamp counter from the preceding either initial or subsequent synchronisation signal has reached a percentage of a maximum synchronisation deviation &Dgr;T. |
