FIELD: alarm signaling, property protection.
SUBSTANCE: device uses seismic line as sensor, which line contains a group of seismic receivers, embedded in soil along protected boundary. Device provides higher reliability due to control of wholeness of seismic line and increased intruder detection characteristics, and also increased interference resistance and receipt of additional signaling information about movement direction of intruders through protected boundary.
EFFECT: broader functional capabilities.
5 cl, 12 dwg
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Authors
Dates
2005-10-20—Published
2004-02-18—Filed