Patent ID: 11861998
Assignee: STMICROELECTRONICS S.R.L.
Field: Control (Instruments)
Classification: CPC G | IPC G

Claim 0:
1. A system for detecting a presence in an environment to be monitored, comprising:
a processor;
an electrostatic charge variation sensor coupled to the processor and configured to detect a variation of electrostatic charge in said environment and generate an electrostatic charge variation signal; and
one of a vibration sensor operatively coupled to the environment to be monitored and configured to detect an environmental vibration in the environment to be monitored and generate a vibration signal, or an environmental pressure sensor operatively coupled to the environment to be monitored and configured to detect an environmental pressure in the environment to be monitored and generate a pressure signal,
wherein the processor is configured to:
acquire, from the electrostatic charge variation sensor, the electrostatic charge variation signal;
detect, in said electrostatic charge variation signal, first signal characteristics indicative of the presence of a subject in said environment to be monitored;
acquire, from said one of the vibration sensor or the environmental pressure sensor, respectively the vibration signal or the pressure signal;
detect, in said vibration signal or pressure signal acquired, respective second signal characteristics indicative of the presence of the subject in said environment to be monitored; and
generate a warning signal if both the first and the second signal characteristics have been detected.