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Proceedings Paper

Preprocessing communication unit (PCU) with short message service (SMS) communication channels for AVL tracking
Author(s): Andrew S. Young; Joseph Skobla
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Paper Abstract

The Preprocessing GPS - SMS Communication Unit (PCU) is a mobile tracking device used within AVL tracking systems for determining the location of vehicles. It was designed primarily to utilize the SMS service of the GSM network for communicating. The use of SMS messages is part of an effort aimed at providing a cost effective alternative for tracking the location of vehicles. Its primary function is to send information about user location across a GSM network to a Central Base Station (CBS) from which assets are being tracked. Though SMS is the main bearer, the unit is also capable of using Circuit Switch Data Service (CSD) to send and receive data from the Base Station (BS). The PCU was developed as a small hardware unit based on the Microchip microcontroller, with a multiplexer switching two RS 232 serial inputs. One input is dedicated to the GPS receiver and the second one to the wireless modem.

Paper Details

Date Published: 6 August 2003
PDF: 14 pages
Proc. SPIE 5084, Location Services and Navigation Technologies, (6 August 2003); doi: 10.1117/12.487270
Show Author Affiliations
Andrew S. Young, Univ. of the West Indies (Jamaica)
Joseph Skobla, Univ. of the West Indies (Jamaica)

Published in SPIE Proceedings Vol. 5084:
Location Services and Navigation Technologies
Yilin Zhao, Editor(s)

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