A microcomputer network for automated mining

A real-time control network that was constructed to provide computer control and monitoring of continuous mining machines is described. The network is composed of a collection of inexpensive microcomputers connected by a single twisted pair cable. Each microcomputer is integrated to provide a particular function in the control process. Machine-mounted microcomputers, in conjunction with the appropriate sensors, provide for closed loop control of the machine, navigation and environmental monitoring. Offboard microcomputers provide remote control and computer-assisted control of the machine and indicate sensor status. Other microcomputers provide a connection to the network so that external computers can access network data and control the continuous mining machine. Different computer systems using various operating systems have been connected to the network, and each has demonstrated complete network functionality. The network has been tested on continuous mining machines at the US Bureau of Mines surface test facility and in an active highwall in West Virginia. The architecture of the distributed network´s hardware and software is described.<>