Design and Implementation of a Location-Based Messaging System: Taxi Fleet Management
Design and Implementation of a Location-Based Messaging System
Patrick S. Chen, Janus Hsu,
Dept. of Information Management, Tatung University,
40 Zhongshan North Road, 3rd Section Taipei 104, Taiwan (R.O.C.) chenps@ttu.edu.tw, kobe0621@hotmail.com
ABSTRACT
A messaging system supporting inter-vehicular communication is implemented to enable management of a caravan. With the help of positioning function and ad hoc network, important messages can be sent to vehicles in the caravan to regulate traffic flow, enhance driving safety and distribute alerts. We distinguish various types of broadcasting and analyze the circumstances for broadcasting. The usefulness of broadcasting is considered in which a message about an accident is more important for the vehicles behind the accidents, and the information that an ambulance is coming is more important for the vehicles before the ambulance. LAN and 3G provide a communication platform for messaging. Broadcasting, P2P communication and SMS are choices of the messaging system. A prototype of the system is implemented and its application is discussed as well.
Keyword: VANET, LBS, GPS, Broadcast Storm, P2P
Introduction
Vehicle Management System is usually an integration of global positioning system (GPS), geographic information system (GIS), mobile communication system and Internet technology, providing users with valuable, real-time information. If a vehicle is equipped with GPS, important information such as current location, speed, direction, vehicle condition, etc. will be sent back to the control center. The manager is able to know oil consumption, personnel attendance, goods delivery, and anomalous state of the vehicle, and to make right decision to enhance performance. In general, a vehicle management information system provides the following functions:
(1) Organization of the caravan: to update the states of the caravan and the personnel;
(2) Real-time monitoring: to control the vehicles based on the
Patrick S. Chen, Janus Hsu,
Dept. of Information Management, Tatung University,
40 Zhongshan North Road, 3rd Section Taipei 104, Taiwan (R.O.C.) chenps@ttu.edu.tw, kobe0621@hotmail.com
ABSTRACT
A messaging system supporting inter-vehicular communication is implemented to enable management of a caravan. With the help of positioning function and ad hoc network, important messages can be sent to vehicles in the caravan to regulate traffic flow, enhance driving safety and distribute alerts. We distinguish various types of broadcasting and analyze the circumstances for broadcasting. The usefulness of broadcasting is considered in which a message about an accident is more important for the vehicles behind the accidents, and the information that an ambulance is coming is more important for the vehicles before the ambulance. LAN and 3G provide a communication platform for messaging. Broadcasting, P2P communication and SMS are choices of the messaging system. A prototype of the system is implemented and its application is discussed as well.
Keyword: VANET, LBS, GPS, Broadcast Storm, P2P
Introduction
Vehicle Management System is usually an integration of global positioning system (GPS), geographic information system (GIS), mobile communication system and Internet technology, providing users with valuable, real-time information. If a vehicle is equipped with GPS, important information such as current location, speed, direction, vehicle condition, etc. will be sent back to the control center. The manager is able to know oil consumption, personnel attendance, goods delivery, and anomalous state of the vehicle, and to make right decision to enhance performance. In general, a vehicle management information system provides the following functions:
(1) Organization of the caravan: to update the states of the caravan and the personnel;
(2) Real-time monitoring: to control the vehicles based on the
References: 13. Yang, Y., Chou, L.: Position-Based Adaptive Broadcast for Inter-Vehicle Communications. In: Communications Workshops, 2008. ICC Workshops '08. IEEE International Conference on, pp. 410-414. (2008) 14. UTAUT, http://www.istheory.yorku.ca/UTAUT.htm