Patent application number | Description | Published |
20140032734 | IP-ADDRESS DISTRIBUTION SYSTEM - An IP-address distribution system according to the present invention includes a network formed by a plurality of switching devices, and a plurality of IP-address distribution devices connected to the network, wherein the switching devices are grouped into two or more groups, and the switching devices interrupt an IP-address request signal transmitted from a terminal that requests allocation of an IP address at a physical port to which a switching device in another group is connected. | 01-30-2014 |
20140042279 | TRAIN-INFORMATION MANAGEMENT DEVICE AND TRAIN-INFORMATION MANAGEMENT METHOD - A train-information management device that manages train control information as a control command signal, and includes a central unit that collates a distance in kilometers measured on a vehicle with track information including a position of an air section provided in overhead wires when the train stops, and when determining that a pantograph is present in the air section, and having detected that the pantograph is in a raised state based on raised/lowered state information output from the pantograph, outputs a ‘lower pantograph’ operation signal as train control information. | 02-13-2014 |
20140301400 | TRAIN INFORMATION MANAGEMENT APPARATUS AND TRAIN INFORMATION MANAGEMENT METHOD - A train information management apparatus includes a first system central device that generates first train control information for a car-mounted device in every predetermined period and a second system central device that generates second train control information starting from the time at which the time obtained by multiplying the predetermined period with 1/2 has elapsed from the time point when the first train control information is transmitted. The first system central device generates a first packet every time the first train control information is generated and alternately transmits a first packet to a first system trunk transmission line and a second system trunk transmission line. The second system central device generates and transmits a second packet almost in the same manner except that the second packet is transmitted to a trunk transmission line on the opposite side of the trunk transmission line to which the first packet was transmitted. | 10-09-2014 |
20140336851 | TRAIN INFORMATION MANAGING APPARATUS AND SELECTION METHOD FOR CONTROL SOFTWARE OF TRAIN INFORMATION MANAGING APPARATUS - Train information managing apparatuses each include a plurality of pieces of control software of versions different from each other. The train information managing apparatus mounted on a head car compares version information of software for devices collected concerning all devices in a formation and version correspondence information included in each of the plurality of pieces of control software, discriminates control software including version correspondence information consistent with the version information of the software for devices concerning all the devices in the formation, when the discriminated control software is different from already-started control software, selects and starts the discriminated control software, and transmits a switching command for switching from the already-started control software to the discriminated control software to a train information managing apparatus mounted on another car. | 11-13-2014 |
20140358337 | TRAIN GUIDANCE-DISPLAY SYSTEM AND TRAIN GUIDANCE-DISPLAY METHOD - After latest door opening-side information is received from an operational management server on a ground after a train starts an operation, train-information managing apparatuses output the door opening-side information to display control apparatuses as guidance data, the display control apparatuses create video data indicating an opening side of doors for all stops at least between a next stop and a terminal station of the train using the door opening-side information, and displays perform display using the video data. | 12-04-2014 |
20140376554 | TRAIN-INFORMATION MANAGING APPARATUS - A train-information managing apparatus receives a series of control information attached to serial numbers, which are transmitted from a central apparatus, in order of the transmission and carries out control in the order, and even when the central apparatus is changed or the serial numbers are reset, prevents a blank period of control from occurring. Therefore, when a reception serial number n included in received data is a preferential serial number (n≦M) and an old number n | 12-25-2014 |
20150244543 | NETWORK SYSTEM AND COMMUNICATION APPARATUS - A network system that comprises a plurality of communication apparatuses, each of the communication apparatuses being capable of performing a VLAN setting by using a VLAN number set for a connection port, that sets a VLAN number for each of the communication apparatuses, and that performs communication among cars of a train, wherein in a case where a specific type of packet that disables a VLAN setting is a packet of a multicast address, when a distribution target apparatus is connected to a communication apparatus that has received the specific type of packet, the communication apparatus transfers the specific type of packet to the distribution target apparatus and, irrespective of a VLAN number set for another communication apparatus, regards a VLAN different from a VLAN of the communication apparatus as a same network and transfers the specific type of packet to the another communication apparatus. | 08-27-2015 |
20150341204 | TRAIN-INFORMATI0N MANAGEMENT DEVICE - A second-system terminal device installed in one vehicle is connected to a first-system backbone transmission line and a second-system backbone transmission line, and when having received a status information packet B from a first-system terminal device installed in another vehicle from the first-system backbone transmission line or the second-system backbone transmission line, the second-system terminal device installed in the one vehicle transfers a control packet A to the second-system terminal device adjacent to a side farther from a central device than the second-system terminal device that has received the status information packet B, by using the backbone transmission line from which the status information packet B has been received. | 11-26-2015 |