Non-contact motion detection method, motion detection device and emergency detection method
AssigneeWistron Corporation
InventorsKuo-Hsing Wang, Chih-Ping Wu
Life of this patent
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Abstract
A non-contact motion detection method, a motion detection device and an emergency detection method are provided. The non-contact motion detection method includes: receiving a reflection signal from a field to obtain a raw data signal; determining that a first event occurs in the field according to an energy value of the raw data signal, and providing a first alarm; determining that a second event occurs in the field according to an energy distribution of the reflection signal; and in case of determining that the second event occurs, providing a second alarm corresponding to the second event according to the energy value of the raw data signal.
Claims20
A non-contact motion detection method, comprising:
- transmitting a detection signal to a field, and receiving a reflection signal corresponding to the field;
- processing the reflection signal to obtain a raw data signal;
- calculating a first maintenance time length corresponding to an energy value of the raw data signal continuously being less than a first preset energy value;
- in response to the first maintenance time length being greater than or equal to a first preset time length, determining that a first event occurs in the field, and providing a first alarm corresponding to the first event;
- determining whether a second event occurs in the field according to an energy distribution of the raw data signal;
- in response to the second event that occurs, calculating a second maintenance time length corresponding to the energy value of the raw data signal continuously being less than a second preset energy value;
- and
- in response to the second maintenance time length being greater than or equal to a second preset time length, providing a second alarm corresponding to the second event.
A motion detection device, comprising:
- a detection circuit, transmitting a detection signal to a field, receiving a reflection signal corresponding to the field, and processing the reflection signal to obtain a raw data signal;
- and
- a processor, coupled to the detection circuit, and configured to:
- calculate a first maintenance time length corresponding to an energy value of the raw data signal continuously being less than a first preset value;
- when the first maintenance time length is greater than or equal to a first preset time length, determine that a first event occurs in the field, and provide a first alarm corresponding to the first event;
- determine that a second event occurs in the field according to an energy distribution of the raw data signal;
- in case of determining that the second event occurs, calculate a second maintenance time length corresponding to the energy value of the raw data signal continuously being less than a second preset value;
- and
- when the second maintenance time length is greater than or equal to a second preset time length, provide a second alarm corresponding to the second event.
An emergency detection method, comprising:
- receiving a reflection radio frequency signal, and processing the reflection radio frequency signal to obtain a raw data signal;
- processing the raw data signal to obtain an energy response corresponding to a field, and determining a first detection result according to the energy response;
- in response to the energy response matching a first event, determining whether the first detection result belongs to an emergency;
- processing the raw data signal according to a motion detection algorithm to obtain a second detection result;
- and
- in response to the second detection result matching a first motion, determining whether the second detection result belongs to the emergency.
Dependencies are inferred from the claim text.