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Remote data acquisition and communication system
| Details |
Inventors: Schanker, Jacob Z.; Hollands, Daniel H.;
Assignee: Metscan, Incorporated (Lima, NY)
Primary Examiner: Groody; James J.
Assistant Examiner: Burgess; Glenton B.
Attorney, Agent or Firm: Parkhurst, Wendel & Rossi
A remote data acquisition and communication system includes a plurality of collector devices including a radio transmitter, optionally a plurality of concentrator devices including a radio transmitter, a radio receiver and a memory, a plurality of controller devices including a radio transmitter, a radio receiver and a memory, optionally a plurality of data communications nodes coupled to corresponding concentrator devices via a first communications link, and a data management platform computer coupled to the data communications nodes or the next lower level of devices via a second communications link. The collector devices, concentrator devices and controller devices communicate with one another via RF communications, preferably a single communication channel at a single carrier frequency. The collector devices preferably transmit data to the concentrator devices at intervals of between 4 to 6 hours and in preferred transmission bursts of less than 200 milliseconds, to minimize collisions between transmissions from different collector devices, and the transmitted data is sorted and redundancies discarded for each desired period of data keeping, i.e., typically daily. |
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DETAILED DESCRIPTION The invention comprises a remote data acquisition and communication system that includes a plurality of data collector devices located at a number of distant, remote geographic locations, each including a radio transmitter, microcontroller and a memory; optionally one or more data concentrator devices each including a radio transmitter, a radio receiver, a microcontroller and a memory; one or more controller devices including a radio transmitter, a radio receiver, a microcontroller and a memory; optionally one or more data communications nodes coupled to the corresponding concentrator devices via a first communications link, and a data management platform main computer coupled to the data communications nodes or the next lower level of devices via a second communications link.
Depending upon the application of the system, it may be possible to omit one or more of the intermediate levels, such as the concentrator devices and/or the data communications nodes.
The collector devices, concentrator devices and controller devices communicate with one another via RF communications, and preferably a single RF communications channel.
The collector devices transmit data to the concentrator devices in brief transmissions, for example a transmission of less than 200 milliseconds in order to minimize collisions between transmissions from multiple collector devices.
After an initial such brief transmission at a randomly determined time within a first time interval, subsequent brief transmissions from the same data collector occur at successive substantially identical intervals in a longer time period typically one full day, during which at least one successful data acquisition is desired from every data collector, which enables successful collection and processing of data from virtually all of a very large number of remotely located data collector devices, even if all are transmitting in a single RF channel, associated with one or more data concentrators.
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Cell Phones 
