{
  "$type": "site.standard.document",
  "description": "Provided are charging/discharging spots which are connected to a power grid and which charge storage batteries of electric vehicles connected thereto and discharge charged power of the storage batteries to the power grid; a data center which collects and stores current position information of…",
  "path": "/patents/996474",
  "publishedAt": "2012-10-31T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "B60L53/14",
    "HITACHI LTD [JP]"
  ],
  "textContent": "Provided are charging/discharging spots which are connected to a power grid and which charge storage batteries of electric vehicles connected thereto and discharge charged power of the storage batteries to the power grid; a data center which collects and stores current position information of electric vehicles located in a territory and charging state information of storage batteries of the electric vehicles; and a power aggregator which ranks degrees of necessity of charging/discharging the storage batteries of the respective electric vehicles based on the stored position information, the charging state information of the storage batteries and position information of the charging/discharging spots and creates a ranking list indicating the ranks. The power aggregator distributes information for guiding each of the electric vehicles to a designated one of the charging/discharging spots for charging or discharging in accordance with the ranking list Accordingly, moving electric vehicles can be guided to charging/discharging spots, so that power charged/discharged on the power grid side can be kept more surely.",
  "title": "POWER GRID CONTROL SYSTEM USING ELECTRIC VEHICLE, POWER GRID CONTROL APPARATUS, INFORMATION DISTRIBUTION APPARATUS, AND INFORMATION DISTRIBUTION METHOD"
}