Patent ID: 7689378

Claim:
A motion sensing system, comprising: one or more motion sensors, each motion sensor operable to measure data on motion and orientation of the motion sensor and comprising (1) a microprocessor to process and transform measured data into digital sensor data and (2) a sensor communication interface to output the digital sensor data; and a controller, separate from and external to the one or more motion sensors and the microprocessor in each of the one or more motion sensors, comprising (1) a controller communication interface in communication with the one or more motion sensors via the sensor communication interface and (2) a controller memory to receive the digital sensor data from the one or more motion sensors, wherein the controller processes, in real time as the digital sensor data is being received, the received digital sensor data to produce a measured motion profile of the one or more motion sensors and to compare the measured motion profile to a reference motion profile for the one or more motion sensors that is stored in the controller microprocessor, and wherein the controller produces an indicator signal to indicate a deviation of the measured motion profile from the reference motion profile.