Remote-Control, Remote-Signaling, and Telemetering System

a complex telemechanic system used to control systems and to monitor their states at a distance and usually permitting remote regulation (see). In its broadest sense, the English term “remote-control” is similar in meaning to the term “telemechanic” used here (see); the term “remote-control” is used in a narrower sense in the present article (see).

The remote-control, remote-signaling, and telemetering system is the most widely used type of telemechanic system, since it permits the most complete implementation by the operator of all control functions. When such systems are of modular design, it is easy to alter the relationship between the number of controlled systems and the amount of command and monitoring information. If the amount of monitoring information is large, the information is processed by an electronic computer connected to the remote-control, remote-signaling, and telemetering system by means of an interface device.

An example of a remote-control, remote-signaling, and telemetering system is the Soviet TM-300 Proizvodstvo system, which is used for telemechanic purposes in industrial enterprises. In this system, any one of 25 monitored points can transmit to the control center, through a wire communication line, information from 60 monitored systems. This information may be signaling information—for example, the switching on of equipment may be reported—or measurement information—for example, measurements of pipeline pressure or of conveyor speed. Each monitored point can receive remote-control or remote-regulation commands for 50 controlled systems, which may be as distant as 20 km. Examples of such controlled systems are machine tools, regulators, dampers, and automatic transfer machines. The TM-300 makes use of standardized semiconductor subunits of the Spektr type.