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`CELLEMETRY
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`http://www.cellemetry.com/html/techoverview.html
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`6 captures
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`6 Dec 98 - 8 Oct 00
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`Technical Overview
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`Cellemetry Data Service, as its name implies, is simply telemetry over the
`cellular telephone network.
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`Cellemetry Service provides a means of sending short, telemetry-like
`messages over the cellular telephone system in a manner that is virtually
`transparent to the cellular operator.
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`Cellemetry Service can enable messaging for many different businesses. It
`can report alarm messages, utility meter readings, vehicle and trailer
`location, and vending machine status, to name a few applications.
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`Cellemetry is unique because it uses the underutilized portion of the cellular
`system, the overhead control channels, to convey short - data messages.
`These control channels are used to transmit necessary information for all call
`initiations (both incoming and outgoing) between the cellular system and the
`cellular customer. The message handling capacity of these control channels
`is far greater than is required by the existing cellular system, even during the
`busiest times of the day.
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`Cellemetry Service operates in the same manner in which roaming
`telephones operate in the cellular system. A roaming cellular telephone is
`defined as a cellular telephone operating in any system other than its home
`system. When a roamer cellular telephone is turned on, it recognizes the fact
`that it is not in its home system and accordingly sends its Mobile
`Identification Number (MIN) and its Electronic Serial Number (ESN) to the
`cellular system via one of the control channels. The cellular system
`recognizes the roamer number and routes the MIN and ESN to the roamer's
`home system for validation via a special network which links all of the
`cellular systems together across the United States.
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`Cellemetry radios respond exactly like roamer telephones except the MINs
`are specially assigned so that the MIN and ESN are routed to the Cellemetry
`Service Bureau connected to the same intra-cellular network. The MIN
`serves to identify the Cellemetry radio and the ESN is the data field which
`contains the 32 bit telemetry message.
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`Cellemetry's centralized Service Bureau processes, stores and routes the
`Cellemetry Service messages according to the customer requirements.
`Some applications may require immediate processing, as is the case with
`alarm monitoring, while an application such as vending machine status may
`only need the messages stored and transferred in a batch once a day.
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`Cellemetry provides a low cost solution for telemetry messages, providing
`coverage over the entire footprint of a cellular system from the first day of
`installation. Cellemetry's sophisticated mobile capabilities, some of which are
`patent pending, enable mobile applications to roam easily and seamlessly to
`any participating carrier's location. No additional equipment is required at the
`cellular base stations. And, Cellemetry Service can be provided by a cellular
`carrier with no impact on the cellular system's normal voice operations.
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`System Description
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`Home | Site Index | Contact Us | Glossary | About Cellemetry | News |
`Applications | Technology | Measurement | Alarm Monitoring | Remote Control |
`Location/GPS
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`http://web.archive.org/web/19981206154928/http:/www.cellemetry.com/html/techoverview...
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`6/9/2015
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