IN-VEHICLE INFORMATION DISTRIBUTION SYSTEM AND IN-VEHICLE INFORMATION DISTRIBUTION METHOD
First Claim
1. An in-vehicle information distribution system comprising:
- an electric-power storage device that is installed in a train and outputs DC power by using electric power from an overhead wire as a supply source;
a first display device in a vehicle, where the first display device operates by being supplied with AC power obtained by converting electric power from the overhead wire;
a second display device in a vehicle, where the second display device operates by using the electric-power storage device as a power source;
a train-information management device that operates by using the electric-power storage device as a power source and manages train information including state information on a vehicle-mounted device; and
an in-vehicle information distribution device that operates by using the electric-power storage device as a power source and selects display data for an in-vehicle guide to be displayed on the first and second display devices, whereinthe in-vehicle information distribution device includesa current-status-information acquisition unit that acquires a plurality of kinds of train information from the train-information management device and acquires state information from each of the first and second display devices, as a group of current-status information,a status-type determination unit that refers to a status-type list table, which classifies a status of the train into a plurality of kinds of status types including at least whether the train is in a normal state according to content of the group of current-status information, and that determines to which of status types classified in the status-type list table the group of current-status information acquired by the current-status-information acquisition unit corresponds,a status determination unit that refers to a status-type/status-determination-information correspondence table, which classifies status-determination information used for determining a status of the train into the status types, that acquires status-determination information corresponding to a status type determined by the status-type determination unit, and that determines a status of the train based on the status-determination information, anda display-content decision unit that refers to a status-type/display-content-information correspondence table, which classifies a display content to be displayed on the first and second display devices into the status types, that acquires display-content information corresponding to a status type determined by the status-type determination unit, and that selects display data corresponding to the display-content information.
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Accused Products
Abstract
An in-vehicle information distribution device includes a current-status-information acquisition unit that acquires current-status information, a status-type determination unit that refers to a status-type list table, and determines to which of status types classified in the status-type list table the current-status information corresponds, a status determination unit that refers to a status-type/status-determination-information correspondence table, acquires status-determination information corresponding to the determined status type, and determines a status of a train based on the status-determination information, and a display-content decision unit that refers to a status-type/display-content-information correspondence table, which classifies a display content to be displayed on a display device (AC-drive) and a display device (DC-drive) into status types, acquires display-content information corresponding to the determined status type, and selects display data corresponding to the display-content information.
9 Citations
16 Claims
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1. An in-vehicle information distribution system comprising:
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an electric-power storage device that is installed in a train and outputs DC power by using electric power from an overhead wire as a supply source; a first display device in a vehicle, where the first display device operates by being supplied with AC power obtained by converting electric power from the overhead wire; a second display device in a vehicle, where the second display device operates by using the electric-power storage device as a power source; a train-information management device that operates by using the electric-power storage device as a power source and manages train information including state information on a vehicle-mounted device; and an in-vehicle information distribution device that operates by using the electric-power storage device as a power source and selects display data for an in-vehicle guide to be displayed on the first and second display devices, wherein the in-vehicle information distribution device includes a current-status-information acquisition unit that acquires a plurality of kinds of train information from the train-information management device and acquires state information from each of the first and second display devices, as a group of current-status information, a status-type determination unit that refers to a status-type list table, which classifies a status of the train into a plurality of kinds of status types including at least whether the train is in a normal state according to content of the group of current-status information, and that determines to which of status types classified in the status-type list table the group of current-status information acquired by the current-status-information acquisition unit corresponds, a status determination unit that refers to a status-type/status-determination-information correspondence table, which classifies status-determination information used for determining a status of the train into the status types, that acquires status-determination information corresponding to a status type determined by the status-type determination unit, and that determines a status of the train based on the status-determination information, and a display-content decision unit that refers to a status-type/display-content-information correspondence table, which classifies a display content to be displayed on the first and second display devices into the status types, that acquires display-content information corresponding to a status type determined by the status-type determination unit, and that selects display data corresponding to the display-content information. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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16. An in-vehicle information distribution method of causing an in-vehicle guide to be displayed on a first display device and a second display device by using display data transmitted from an in-vehicle information distribution device in a vehicle of a train in which an electric-power storage device that outputs DC power by using electric power from an overhead wire as a supply source, the first display device in a vehicle, where the first display device operates by being supplied with AC power obtained by converting electric power from the overhead wire, the second display device in a vehicle, where the second display device operates by using the electric-power storage device as a power source, a train-information management device that operates by using the electric-power storage device as a power source and manages train information including state information on a vehicle-mounted device, and the in-vehicle information distribution device that operates by using the electric-power storage device as a power source and selects the display data for an in-vehicle guide to be displayed on the first and second display devices are installed, the method comprising:
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a step of acquiring a plurality of kinds of train information from the train-information management device and acquiring state information from each of the first and second display devices, as a group of current-status information, by the in-vehicle information distribution device; a step of referring to a status-type list table, which classifies a status of the train into a plurality of kinds of status types including at least whether the train is in a normal state according to content of the group of current-status information, and determining to which of status types classified in the status-type list table the acquired group of current-status information corresponds, by the in-vehicle information distribution device; a step of referring to a status-type/status-determination-information correspondence table, which classifies status-determination information used for determining a status of the train into the status types, acquiring status-determination information corresponding to the determined status type, and determining a status of the train based on the status-determination information, by the in-vehicle information distribution device; and a step of referring to a status-type/display-content-information correspondence table, which classifies a display content to be displayed on the first and second display devices into the status types, acquiring display-content information corresponding to the determined status type, and selecting display data corresponding to the display-content information, by the in-vehicle information distribution device.
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Specification