Abstract: A system of travel service is provided. The system includes an application apparatus and a server. A traveler sends a request through the application apparatus when a problem occurs during his/her trip. A helper who has communication capability of a specific language used by the traveler is found by the server in real time. The server sends information related to the request to the helper immediately. A live connection between the traveler and the helper is created in real time to provide travel services to satisfy the request, in which the live connection includes real-time voice communication and real-time data communication. The problem which occurred during the traveler's trip can be solved quickly by the present system.

Abstract: A method for detecting at least one object within a storage space. The method includes identifying at least one surface among surfaces confining the storage space, and dividing each of the at least one surface into a plurality of sub-areas. The method further includes detecting an occupancy status of each sub-area, wherein the occupancy status is indicative of the presence of the at least one object over each of the at least one surface, and deriving at least one of volume, location, and shape information of the at least one object, based on the occupancy statuses of the sub-areas.