Showing papers on "Supervisory control published in 1972"

Key telephone system using time division and space division control

Abstract: Disclosed is a key telephone system using a line concentrator and a form of TDM signalling. A single data and supervisory control pair of wires connects a station instrument to the system to effect all switching and supervisory controls for all lines to which the station has access, regardless of the number of these lines. Each station instrument also has a pair of speech wires which are switched within a station-line matrix under the control of a memory unit as directed by the data transmitted. Lines are grouped into groupings of up to five lines accessible to each station, there being a matrix and memory for controlling the switching of the matrix within each grouping. More than five lines may be accessible from a station instrument, such instrument having connections to multiple groups through a station circuit individual to that station. Within the system, many added features, such as speech pair security, restrictions on allowed service, and the like may be readily incorporated.

Computerized process control in behavioral science research

Abstract: A general approach to the design and development of real-time operating systems is discussed. Operating system design for small to medium scale laboratory computers is described at a moderately elementary level. Analysis of system design as a supervisory control hierarchy is presented in an attempt to bridge the gap between an elementary general understanding of computer operation and the more sophisticated understanding assumed by the writers of most computer systems operator’s manuals. PROSS, a programming language developed at Indiana University, is presented as an example of the highest level of supervisory control.

Robots, productivity and quality

Abstract: There is a growing national need to increase the real productivity of our society, wherein “productivity” is redefined to include such major factors as the quality of life of workers and the quality of products, consistent with the desires and expectations of the general public. This paper proposed the development of automation technology designed to increase quality, in all its aspects, at an acceptable cost to society. The proposed program is divided into two phases. The first phase is designed to catalyze the potential resources of industrial concerns by developing two demonstrable systems that include general-purpose programmed manipulation and automated inspection. The second phase, with longer term objectives, would aim at devising techniques to broaden the utilization of programmed manipulators and sensors, to provide supervisory control of these systems by human speech, and to develop a capability for automatic manipulation of two or more sensor-controlled “hands” working cooperatively.

Closed loop communication wire system

Abstract: A system for controlling the operation of a plurality of electrical actuating devices, located at diverse points, from a remotely located control station via the conventional communication or telephone lines. Direct current voltage is transferred from the remote station to the local stations wherein the power is conservatively utilized in a circuit to control and power an electro/mechanical device normally requiring much greater voltage. The voltage is also modified and retransmitted over the same line back to the control station as signals indicative of certain conditions. In a preferred embodiment the device actuated is a mechanical bolt for securing the doors of any one of a plurality of protected premises. The bolt alternatively being operative from a locked or an unlocked position by a solenoid energized by a circuit utilizing the voltage transferred from a supervisory control station. The voltage received at the local protected station is modified and returned via same lines to indicate to the supervisory control station, by distinctive signals, the bolt and door position. The interconnected lines also monitor sound and maintain a two-way communication system. The voltage transferred is a moderate to low direct current voltage from a power source at the control station. No local power is needed or utilized at the plurality of local stations.

A Computer Assisted Teleoperator Control Station With Tactile Feedback

Abstract: A computer-assisted teleoperator control system for making comparative performance evaluations is described. A local and a remote control station, each with decision-making capability, communicate with each other through a simulated time delay. Supervisory control at three increasingly automatic levels is possible. The highest level of programmed control is facilitated through the ARM language which was developed to permit easily readable program manuscripts to be written and assembled into programs of motions by novice programmers. Experimental results show the advantage of this form of supervisory control with both direct and delayed (3 sec) manipulation tasks. In addition, two systems to measure and reproduce force distributions have been designed. One system reproduces contact on the external surfaces of the remote hand using 21 airjet simulators. Another system reproduces the shape of the contact between object and jaws using 288 piezoelectric (bimorph) stimulators.

Computer Supervisory Control of Digital Closed Loop In-Line Blending

Abstract: in the base stock streams, such that any change in an individual stream is detected. As has been outlined, the main advantages of computer control is closer tolerance, and more economic production. It has been argued that the computer should be allowed to not only supervise but directly control the process, but it is becoming a recognised trend that the computer's role is ideally suited to supervise; this is true not only of blending but also of general process control. The main reason for this is that the computer should have its capacity free to carry out the operations to which it is best suited, ie, up-dating set points in coded form from complex data, data logging, etc. AIR SUPPLY DIGITAL TO ANALOGUE CONVERTOR