Patent ID: 6317060
Filing Date: 2001-11-13
Classification: G08G

Abstract:
A system for notifying users of impending arrivals of vehicles at particular locations, comprising:memory storing a first time value, said first time value indicating when a user should be notified of an impending arrival of a vehicle;a clock configured to produce a second time value;a route handler configured to receive a status message from said vehicle and to transmit an update request when said vehicle is off schedule based on said status message;a schedule monitor configured to compare said first time value to said second time value and to produce and transmit a notification request based on a comparison of said time values, said schedule monitor further configured to update said first time value in response to said update request; anda communication handler configured to receive said notification request and to transmit a notification message to said user in response to said notification request, said communication handler further configured to store said notification request and to determine a number of notification requests stored by said communication handler, said communication handler further configured to compare said number of notification requests to a threshold number and to cause reallocation of notification requests between said communication handler and at least one other communication handler based on a comparison of said number of notification requests to said threshold number.