INTELLIGENT WIRELESS MULTICAST NETWORK
First Claim
Patent Images
1. A wireless data communication system, comprising:
- a plurality of remote terminal units (RTUs);
a plurality of satellite hosts;
a master host unit wirelessly coupled to the plurality of satellite hosts and the plurality of RTUs;
wherein the master host periodically scans for data from either the plurality of RTUs or from the plurality of satellite hosts;
and wherein the scanning period of the master host is substantially shorter than the amount of time associated with the data being scanned.
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Abstract
Disclosed is a supervisory control and data acquisition (SCADA) system using a spread spectrum or licensed frequency data radio network and communication method therefore allowing multiple slave hosts and slave devices or remove terminal unit (RTU) the ability to communicate data connectivity in a wireless environment.
26 Citations
26 Claims
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1. A wireless data communication system, comprising:
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a plurality of remote terminal units (RTUs); a plurality of satellite hosts; a master host unit wirelessly coupled to the plurality of satellite hosts and the plurality of RTUs; wherein the master host periodically scans for data from either the plurality of RTUs or from the plurality of satellite hosts; and wherein the scanning period of the master host is substantially shorter than the amount of time associated with the data being scanned. - View Dependent Claims (2, 3, 4, 5)
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6. A wireless data communication system, comprising:
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a plurality of remote terminal units (RTUs); a plurality of satellite hosts; a master host unit wirelessly coupled to the plurality of satellite hosts and the plurality of RTUs; wherein data from either the plurality of RTUs or from the plurality of satellite hosts is first received by the master host; and wherein during periods of non-peak data transmissions in the communication system, the master host re-broadcasts the data received from either the plurality of RTUs or from the plurality of satellite hosts prior to being transmitted to its intended location. - View Dependent Claims (7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
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17. A method of communicating in a wireless data communication system, the method comprising the acts of:
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coupling a plurality of remote terminal units (RTUs) to a master host; coupling a plurality of satellite hosts to a master host; receiving data from either the plurality of RTUs or from the plurality of satellite hosts with the master host prior to other components in the data communication system; and wherein, during periods of non-peak data transmissions in the data communication system, re-broadcasting data received from either the plurality of RTUs or from the plurality of satellite hosts. - View Dependent Claims (18, 19, 20, 21, 22, 23, 24, 25, 26)
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Specification