TunnelGuard Covert system that uses seismic sensors
Key Specifications
TunnelGuard is a covert system that uses seismic sensors, buried near the walls or foundations
of a structure, to detect tunneling attempts nearby protected assets.
TunnelGuard can recognize the seismic footprint of a variety of activities (digging, drilling, scraping,
jack-hammering, etc.), measure their intensity and duration. The proprietary detection algorithms
intelligently filter out non-threatening vibrations, from traffic on nearby roads and underground
subways, in order to minimize false alarms.
Markets
TunnelGuard is a robust and modular solution for detecting any tunneling and digging nearby any
infrastructure early enough before the actual breach occurs. It is typically used to protect bank
vaults, prisons, museums and other cultural heritage sites.
How it works
Basic sensing unit
The core of the protection system is the TunnelGuard Sensor Unit (TGSU), which consists of a
digital signal processor connected to four geophones by shielded cables. The digital signal
processor is housed in an IP66 water proof enclosure that can be installed near the protected
structure. The geophones are designed to be installed in variety types of soils.
System layout
A typical TunnelGuard system will consist of up to four TGSUs, connected to a Distribution Box – a
hub for power and communication. A computer collects the serial data from each TGSU trough the
Distribution Box. The computer typically hosts a dedicated SMS (Security Management System) application. Integration to a 3rd party SMS can be done through dry contacts.
