| 摘要 |
<P>PROBLEM TO BE SOLVED: To update information to be displayed in each train car to be the latest information when connecting multiple train cars each of which includes an in-train information display device for receiving and displaying various pieces of information. <P>SOLUTION: One train car and the other train car, which are connected, respectively include in-train information display devices. In this case, the management part of each train car performs communication when the connection is detected and compares the contents of both of the train cars. When coincidence is not obtained in a comparison result, the management part of the train car that stores a content generated on an earlier date performs a content acquisition request. The management part that receives the acquisition request transmits a content stored in a content storage part, so that the storage content of a content storage part in the train car storing the content generated on an earlier date is updated. <P>COPYRIGHT: (C)2013,JPO&INPIT |
