Patent ID: 8583365

Claim:
A route guide method comprising: collecting state information of respective points of interest (POIs) and storing the collected state information in a state information database; searching a plurality of candidate POIs stored in the state information database; extracting state information from each of the plurality of candidate POIs; analyzing the state information; determining whether each candidate POI is a valid POI based on the state information; sending information for each valid POI to a navigation device; providing an option to select a current time, an arrival time, or an after service time as a reference time; checking whether the reference time is the current time, the arrival time, or the service time; and calculating a time required value for each of the respective candidate POIs based on the reference time, wherein the after service time is based on a time for receiving services at an associated POI, and wherein the state information is information on a dynamic state of the POI.