Remote supervisory control system

Details Remote supervisory control system Remote supervisory control system

1990-08-31

1991-09-17

Yusko, Donald J.

Communications: electrical

Continuously variable indicating

With meter reading

34082502, 34082508, H04B 300

Patent

active

050498720

ABSTRACT:
A slave station at an end location of a transmission route is responsive to a polling signal issued from a master station such that if there exist data to be sent to the master station, the slave station transmits a code with a "busy" token and specifying the data to a slave station at the next upper location; and if there do not exist data to be sent to the master station, the slave station transmits a "free" token to the slave station at the next upper location. When the slave station at the upper location receives the "busy" token from the station at the lower location, the slave station at the upper location relays the entire codes receives. If the "free" token is received and when there exist data to be sent to the master station, the slave station replaces the "free" token with the "busy" token and subsequently sends the obtained data; and if there do not exist data to be sent to the master station, the slave station relays the "free" token to a slave station at the next upper location or the master station.

REFERENCES:
patent: Re31852 (1985-03-01), Soderblom
patent: 4427968 (1984-01-01), York
patent: 4482999 (1984-11-01), Janson et al.
"IEEE Tutorial Course, Fundamentals of Supervisory Control Systems", 12/1981, pp. 33-35.
R. G. Herrtwich, "Koordination in Iolaken Netzen", 12/1986, pp. 440-443.

Affiliated with

Also associated with

Rating

Remote supervisory control system does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Remote supervisory control system, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Remote supervisory control system will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1919654