Patent ID: 11928960
Assignee: INVENT F & W, LLC
Field: nan (nan)
Classification: CPC nan | IPC G

Claim 6:
7. An alert management computing device for alerting passenger vehicles of approaching emergency vehicles, the alert management computing device comprising:
a processor; and
a memory coupled to the processor, said processor programmed to:
receive a vehicle alert request message from an emergency vehicle transmitter,
wherein the vehicle alert request message includes a present emergency vehicle location and at least one of a present emergency vehicle speed, a present emergency vehicle trajectory, and a present emergency vehicle acceleration;
receive passenger vehicle location data from a plurality of passenger vehicle user computing devices located in a plurality of passenger vehicles,
wherein the passenger vehicle location data includes a present passenger vehicle location and at least one of a present passenger vehicle speed, a present passenger vehicle trajectory, and a present passenger vehicle acceleration;
calculate an alert zone for the emergency vehicle as a function of the present emergency vehicle location and at least one of a present emergency vehicle speed, a present emergency vehicle trajectory, and a present emergency vehicle acceleration,
increase the area of the alert zone in response to an increase in the at least one of the emergency vehicle speed and the emergency vehicle acceleration;
decrease the area of the alert zone in response to a decrease in the at least one of the emergency vehicle speed and the emergency vehicle acceleration;
calculate a vehicle zone for each of the plurality of passenger vehicles as a function of at least one of the present passenger vehicle location, the present passenger vehicle speed, the present passenger vehicle trajectory, and the present passenger vehicle acceleration;
identify a subset of the plurality of passenger vehicles within the alert zone by comparing each vehicle zone to the alert zone,
wherein the subset of the plurality of passenger vehicles consists of passenger vehicles whose vehicle zone partially overlaps the alert zone; and
transmit a warning message to the subset of the plurality of passenger vehicles via the passenger vehicle user computing devices.