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In-car information display system and power supply method

  • US 9,511,784 B2
  • Filed: 02/28/2012
  • Issued: 12/06/2016
  • Est. Priority Date: 02/28/2012
  • Status: Active Grant
First Claim
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1. An in-car information display system comprising:

  • a power storage device including a storage battery charged with direct-current power obtained by converting electric power from an overhead wire;

    a plurality of display devices that operate by receiving supply of direct-current power from the power storage device and provide a guidance display related to a service of a train to passengers; and

    a terminal device that operates by receiving the supply of the direct-current power from the power storage device and delivers to the display devices information for guidance display that is information used for the guidance display,wherein the power storage device switches a power supply operation to the display devices according to a residual capacity of the storage battery and reduces a total amount of electric power supplied to each of the display devices and wherein, when the residual capacity is equal to or smaller than a predetermined threshold, the power storage device stops power supply to a part of the display devices.

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