System and method for switching a communication path based on disaster information

摘要

A relay apparatus transfers data sent from a user terminal, to an external network, via any one of paths. A notification apparatus receives first disaster information including area information identifying first areas forecast to be affected by an occurrence of a disaster and prediction information storing, in association with each of the first areas, a predicted intensity value indicating a predicted value of an influence degree of the disaster on the each of the first areas. The notification apparatus generates, based on the first disaster information, second disaster information storing the predicted intensity value in association with each of second areas passed through by the paths. The relay apparatus switches the currently-used path to alternative path when it is determined that the predicted intensity value associated with at least one of third areas passed through by the currently-used path is greater than or equal to the predetermined threshold value.

主权项

1. A system for switching a communication path based on disaster information, the apparatus comprising:
a relay apparatus to transfer data sent from a user terminal, to an external network, via any one of a plurality of communication paths; and an information notification apparatus to transmit, when a disaster has occurred, information on the occurred disaster to the relay apparatus, wherein the information notification apparatus is configured:
to receive first disaster information including area information and prediction information, the area information identifying first areas that are forecast to be affected by an occurrence of the disaster, the prediction information storing, in association with each of the first areas, a predicted intensity value indicating a predicted value of an influence degree of the disaster on the each of the first areas,to generate, based on the received first disaster information, second disaster information storing the predicted intensity value for the disaster in association with each of second areas that are included in the first areas and are passed through by the plurality of communication paths, andto transmit the generated second disaster information to the relay apparatus; and the relay apparatus is configured:
to receive the second disaster information,to determine, based on the received second disaster information, whether or not a first predicted intensity value associated with at least one of third areas is greater than or equal to a predetermined threshold value, the third areas being areas passed through by a first communication path that is currently used one of the plurality of communication paths, andto switch the first communication path to a second communication path that is alternative one of the plurality of communication paths when it is determined that the first predicted intensity value is greater than or equal to the predetermined threshold value.