Radio communication network for remote data generating stations

Details Radio communication network for remote data generating stations Radio communication network for remote data generating stations

1990-02-15

1991-10-08

Gregory, Bernarr E.

Pulse or digital communications

Repeaters

Testing

34087003, 34087006, 34087011, 34087028, 340637, 324110, H04K 100, H04B 1500, G08C 1700

Patent

active

050561073

ABSTRACT:
A radio communications network for transmitting data from a plurality of remote stations to a central station is provided. This system is particularly proposed for automatic meter reading systems in which the remote stations are located at utility meters. The system includes an array of receiving stations arranged relative to the remote stations so that the mesages from each remote station can be received by at least two and preferably four of the receiving stations providing a high level of duplication of messages. The remote stations transmit utility usage information obtained from the previous time period at a random time subsequent to the time period so that message collisions can occur. High level of duplication provided by the increased number of receiving stations reduces the message loss. A quiet period during which the remote stations are prevented from transmitting can be used for communication between the receiving stations and the central station.

REFERENCES:
patent: 4361851 (1982-11-01), Asip et al.
patent: 4799059 (1989-01-01), Grindahl et al.
Spread Spectrum Systems, by R. C. Dixoni (John Wiley & Sons, Inc., 1984); Section 2.3, pp. 42-44.
Andrew S. Tanenbaum, Computer Networks, "Satellite Packet Broadcasting", Prentice Hall, 1981, pp. 253-257.
Databeam, "System Schematic", Jul. 1986.

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