Behavior estimating method, behavior estimating system, service providing method, signal detecting method, signal detecting unit, and signal processing system

A behavior estimating system including a signal detection unit and a behavior estimation unit, wherein:

• a first angle is preset between a gravitation direction and a direction of action of a standard person being measured;
• the signal detection unit includes an acceleration sensor;
• the signal detection unit generates different acceleration waveforms;
• a second angle between the gravitation direction and the direction of action of the person being measured is extracted from the acceleration waveforms;
• the signal detection unit performs a coordinate transformation process among the acceleration waveforms based upon the present first angle and the extracted second angle;
• and
• the behavior estimation unit performs behavior estimation of the person being measured based upon a result of the coordinate transformation process.

A service providing method comprising:

• setting a predetermined criterion based upon at least some of detected raw signals from at least one sensors;
• processing at least one of the detected raw signals from the sensors based upon the predetermined criterion;
• and
• providing service based upon a result of the signal processing.

A signal processing system including a signal detection unit and a service control unit, wherein:

• the signal detection unit includes at least one sensors;
• predetermined information is extracted from raw signals detected from the sensors;
• the signal detection unit processes at least one of the detected raw signals from the sensors based upon the predetermined information;
• and
• the service control unit controls service based upon a result of the signal processing.

A service providing method comprising:

• collecting detected raw signals from at least one sensors;
• processing at least one of the collected detected raw signals;
• performing an estimation process based upon a result of the signal processing;
• and
• providing service based upon the result of the signal processing,
• wherein:
• at least one of the detected raw signals varies with time;
• and
• the estimation process is performed using an extension/contraction technique that is adapted to extension/contraction of the detected raw signals in a direction in which time elapses.