Hardened units composed of microprocessors and integrated transmitters and receivers installed in the field and on board both mobile and stationary equipment in large scale mining, construction, and industrial operations to collect data from various applications, to transmit the data to central processing facilities, and to receive data transmissions directed to the applications and equipment; Hardened units composed of microprocessors and integrated transmitters and receivers installed in th...

Slope and land movement monitoring system for use with mining sites, excavation sites and similar land sites comprised of sensing devices in the nature of extensometers, radio transmitters and receivers for transmitting data from sensing devices to a remote location and associated apparatus used to detect motion between connected sensor units, namely, cables, pulleys, cable anchors, cable reels, magnetic clutches and weighted pulley supports, and related data processing and transmission software