Methods for communicating between elements in a hierarchical floating car data network

A data network and automobile technology, applied in data exchange network, wireless communication, network topology, etc., can solve the problem of inability to communicate with central database

Active Publication Date: 2006-09-13
BLACKBERRY LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In many cases, communication with the central database may not be possible at all due to e.g. geographic considerations

Method used

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  • Methods for communicating between elements in a hierarchical floating car data network
  • Methods for communicating between elements in a hierarchical floating car data network
  • Methods for communicating between elements in a hierarchical floating car data network

Examples

Experimental program
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Embodiment Construction

[0028] figure 1 A layered floating car data network is shown. The hierarchical floating car data network includes a central server 18, a departure point network 14 including a plurality of departure points 10, and a participating vehicle network 12 including a plurality of participating vehicles. At least some of the vehicles in the hierarchical floating vehicle data network are participating vehicles. A participating vehicle is a vehicle that includes an on-board device, such as an enhanced mobile communication device. One such enhanced mobile communication is described in US Patent Application Serial No. 10 / 272,039.

[0029] Participating vehicles are operable to communicate directly 12 with other participating vehicles, communicate 14 with an origin network, and optionally communicate 16 with a central server. Data, such as traffic data, is collected and exchanged as participating vehicles traverse the roads of the transportation network. Drivers of participating vehicl...

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Abstract

Participating vehicles and egress points communicate with each other according to an infrastructure mode. Participating vehicles communicate with other participating vehicles according to an ad-hoc mode. In an infrastructure mode packet transmitting method for a participating vehicle, beacon service table packets, vehicle service table packets, or packet bursts are created and transmitted. In an infrastructure mode packet receiving method for a participating vehicle, beacon service table packets, vehicle service table packets, packet bursts, or negative acknowledgement packets are received. In an infrastructure mode packet transmitting method for an egress point, an enhanced beacon packet or a negative acknowledgement packet is created and transmitted. In an infrastructure mode packet receiving method for an egress point, beacon service table packets, vehicle service table packets, or packets bursts are received. In an ad-hoc mode packet transmitting method for a participating vehicle, beacon service table packets, vehicle service table packets, packet bursts, or positive acknowledgement packets are created and transmitted. In an ad-hoc mode packet receiving method for a participating vehicle, beacon service table packets, vehicle service table packets, packet bursts, or positive acknowledgement packets are received.

Description

[0001] related application [0002] This application is related to U.S. Patent Application Serial No. 10 / 272,039, filed October 15, 2002, by Assimakis Tzamaloukas et al., entitled "Enhanced Mobile Communications Devices, and Applications Therefor in the Field of Transportation," Its entirety is hereby incorporated by reference. Background technique [0003] Global Positioning Systems (GPS), or GPS receivers, have been increasingly used in automobiles to provide car navigation functions. Typically, a GPS receiver or navigation device includes a digital road map of the area of ​​travel, or a geographic information (GIS) database. A user, such as a car driver, enters a destination into a GPS navigation device, and the GPS navigation device calculates a route from the vehicle's current location to the destination through the road network represented in the GIS database. Turn-by-turn directions are communicated to the driver by visual or audible cues. The vehicle's current locat...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F17/00G01C21/26H04B7/00G06FH04L12/28H04L12/56H04L29/08
CPCH04L67/12H04L29/08072H04W88/06H04W84/18H04W84/005H04W28/14G01C21/26H04W28/04H04L69/329H04L29/08558
Inventor 艾斯玛吉斯·特扎玛罗卡斯
Owner BLACKBERRY LTD
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