EP0265342A2
Expired / Lapsed
EP
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Distribution energy management system
Assignee: Atos Origin IT Services Inc
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Filing: 1987-10-21
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Granted: —
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Expires: 2007-10-21
Abstract
Abstract A bidirectional data communications distribution network is established between the system operations center (SOC) and customer terminals of a load management and electrical energy distribution system. The distribution network comprises independent processor controlled, primary communications interface units (PCI) in communication with the SOC over telephone lines or other medium. Each PCI is in turn in communication with a plurality of independent processor controlled, secondary communications interface units (SCI) over electrical utility primary distribution power lines. Signals between PCIs and SCIs on the primary distribution power lines are code division multiplexed using direct sequence spread spectrum (DSSS) signal processing. Each SCI continuously polls a number of assigned customer load terminals on the low voltage side of the electrical energy distribution system, storing and calculating meter register readings and load status.
Inventors
- 👤 E. Thomas Wiggins
- 👤 Lawrence B. Horwitz
- 👤 Donald W. Rouse
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-27 23:38
CPC Classifications
H; H02; H02J; H02J13/00; H02J13/13; H02J13/1337; H02J13/18; H02J13/333; H02J3/00; H02J3/17; H02J2105/00; H02J2105/50; H02J2105/51; Y; Y02; Y02B; Y02B70/00; Y02B70/30; Y02B70/3225; Y04; Y04S; Y04S20/00; Y04S20/20; Y04S20/222
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
99 words
A load management and electrical energy distribution apparatus having a system operations center (SOC) and a plurality of load terminals, a distribution network for establishing bidirectional data communications between the SOC and said load terminals, characterized by: independent processor controlled, primary communications interface units (PCIs) in communication with said SOC over a first bidirectional communications network; and independent processor controlled, secondary communications interface units (SCIs) in communication with one of said PSIs over a second bidirectional communications network including electrical utility primary distribution power lines; said load terminals in communication with said SCIs over a third bidirectional communications network.
Claim 2
Dependent Claim
99 words
A load management and electrical energy distribution apparatus having a system operations center (SOC) and a plurality of load terminals, a distribution network for establishing bidirectional data communications between the SOC and said load terminals, characterized by: independent processor controlled, primary communications interface units (PCIs) in communication with said SOC over a first bidirectional communications network; and independent processor controlled, secondary communications interface units (SCIs) in communication with one of said PSIs over a second bidirectional communications network including electrical utility primary distribution power lines; said load terminals in communication with said SCIs over a third bidirectional communications network.
Claim 3
Dependent Claim
16 words
Apparatus according to claim 1, characterized in that said first bidirectional communications network includes telephone lines.
Claim 4
Dependent Claim
20 words
Apparatus according to claim 1 or 2, characterized in that said third bidirectional communications network includes end user electrical wiring.
Claim 5
Dependent Claim
38 words
Apparatus according to claim 1, 2 or 3, characterized in that said second bidirectional communications network includes at least one distribution transformer, at least one of said SCIs being located at a low voltage side of said transformer.
Claim 6
Dependent Claim
29 words
Apparatus according to any one of the preceding claims, characterized by signal multiplexing means in said second bidirectional communications network for establishing simultaneous communications between said PCIs and SCIs.
Claim 7
Dependent Claim
24 words
Apparatus according to any one of the preceding claims, characterized in that communication in said second communications network is established by code division multiplexing.
Claim 8
Dependent Claim
18 words
Apparatus according to claim 6, characterized in that said multiplexing includes direct sequence spread spectrum (DSSS) signal processing.
Claim 9
Dependent Claim
25 words
Apparatus according to any one of the preceding claims, characterized in that communication in said third communications network is established by phase shift keyed modulation.
Claim 10
Dependent Claim
36 words
Apparatus according to claim 1, characterized in that each of said PCIs including signal multiplexing receiver means for receiving data transmitted simultaneously by at least two SCIs of said second group over said second communications network.
Claim 11
Dependent Claim
44 words
Apparatus according to claim 1, characterized in that means for multiplexing data transmitted between each PCI and at least two of said SCIs over said second bidirectional communications network; said multiplexing means including means for processing code division multiplexed direct sequence spread spectrum signals.
Claim 12
Dependent Claim
167 words
Apparatus according to claim 1, characterized in that a timing signal source on said power lines; said SCIs synchronized to the timing signal source and transmitting data spread by a bipolar pseudo-random code which is a different assigned shift of a common bipolar code sequence; each of said PCIs including a receiver synchronized to said timing signal source for receiving said data signals and discriminating the signal transmitted by a predetermined SCI spread by a bipolar pseudo-random code having a predetermined assigned code sequence shift from signals transmitted by the other SCIs, the receiver including means for generating a first bipolar pseudo-random code that is a replica of the transmitted common bipolar pseudo-random code and has the predetermined assigned code sequence shift, means for generating a second bipolar pseudo-random code that is a replica of the transmitted common bipolar pseudo-random code and has an unassigned code sequence shift, means for processing said first and second sequence and means for cross-correlating said transmitted signals and said trinary sequence.
Claim 13
Dependent Claim
31 words
Apparatus according to claim 1, characterized in that said SCIs include means for polling said load terminals including transmitting to said load terminals data requests and receiving therefrom load status data.
References Cited (Backward Citations)
No citation records indexed.
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