FACILITY AND METHOD FOR MONITORING A DEFINED, PREDETERMINED AREA USING AT LEAST ONE ACOUSTIC SENSOR
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Abstract
A monitoring facility includes at least one acoustic sensor arranged in a monitoring area to convert an acoustic wave picked up following the occurrence of an activity in the monitoring area into an information signal, and a processing device to receive the information signal. Also included is a system for transmitting at least one alarm and a database including, for each one of at least one predetermined reference activity, an occurrence of which is likely to generate acoustic waves in the monitoring area, reference characteristics relating to said predetermined reference activity. The processing device includes an analysis system to analyze the information signal according to reference characteristics of at least one predetermined reference activity of the database, and to activate the system for transmitting at least one alarm according to said analysis. Furthermore, at least one acoustic sensor is included to detect seismic waves propagating in a solid medium.
32 Citations
15 Claims
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1-9. -9. (canceled)
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10. A facility for monitoring a predetermined delineated monitoring area, comprising:
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at least one acoustic sensor arranged in the monitoring area and configured to convert an acoustic wave picked up following the occurrence of an activity in the monitoring area into an information signal; a processing device configured to receive the information signal; a system for transmitting the information signal to the processing device; a system for transmitting at least one alarm; and a database comprising, for each of at least one predetermined reference activity whose occurrence is likely to generate acoustic waves in the monitoring area, reference characteristics relating to said predetermined reference activity, wherein the processing device includes an analysis system configured to; analyze the information signal according to the reference characteristics of at least one predetermined reference activity of the database, and activate the system for transmitting at least one alarm according to the analysis of the information signal, the monitoring area includes at least one acoustic sensor detecting seismic waves propagating in a solid medium, the system for transmitting at least one alarm includes a device, arranged in the monitoring area, for generating a level one alarm and a device for generating, to outside of the monitoring area, a level two alarm, and the analysis system is configured to receive an acknowledgment signal and to; activate the device for generating the level two alarm if no acknowledgment signal is received in a predetermined time period following the generation of the level one alarm, and update the reference characteristics of a predetermined reference activity in the database if an acknowledgment signal is received in said predetermined time period following the generation of the level one alarm. - View Dependent Claims (11, 12, 13)
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14. A method for monitoring a predetermined delineated monitoring area, comprising:
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receiving an information signal obtained from a conversion carried out by an acoustic sensor for an acoustic wave resulting from an occurrence of an activity in the monitoring area; analyzing the information signal from reference characteristics related to at least one predetermined reference activity; and transmitting at least one alarm based on this analysis, wherein the sensor is an acoustic sensor for seismic waved propagating in a solid medium and the transmitting at least one alarm includes the generation of a level one alarm, and the generation of a level two alarm if no acknowledgment signal is received in a predetermined time period following the generation of the level one alarm, an update to the reference characteristics of at least one predetermined reference activity if an acknowledgment signal is received in said predetermined time period following the generation of the level one alarm. - View Dependent Claims (15)
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Specification