Train information management apparatus and train information management method

Patent metadata

Field	Value
Publication number	US-9515944-B2
Application number	US-201114359348-A
Country	US
Kind code	B2
Filing date	Dec 12, 2011
Priority date	Dec 12, 2011
Publication date	Dec 6, 2016
Grant date	Dec 6, 2016

Abstract

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.

First claim

The invention claimed is:

1. A train information management apparatus comprising:
a first information transmitter connected to a first trunk transmission line disposed across a plurality of cars, which configure a formation of a train, and a second trunk transmission line disposed across a plurality of cars, which configure the formation of the train, and forming a redundant system of the first trunk transmission line, the first information transmitter including a first train-control-information generator configured to generate, based on control input information including notch information, first train control information serving as a control command signal for a receiving device mounted on the car and a first packet generator configured to increment a sequence number by 1, every time the first train control information is generated, and generate a first packet in which the sequence number has been given to the first train control information and alternately transmit, in every predetermined period, the first packet to the first trunk transmission line and the second trunk transmission line; and
a second information transmitter connected to the first trunk transmission line and the second trunk transmission line, the second information transmitter including a second train-control-information generator configured to generate second train control information, which is train control information same as or different from the first train control information, based on the control input information starting from the time at which the time obtained by multiplying the predetermined period with 1/2 has elapsed from a time point at which the first train control information was transmitted, and a second packet generator configured to generate, every time the second train control information is generated, a second packet in which a sequence number same as the sequence number given to the first packet has been given to the second train control information and transmit, in the every predetermined period, the second packet to a trunk transmission line on the opposite side of the trunk transmission line to which the first packet was transmitted.

2. The train information management apparatus according to claim 1 , wherein the first information transmitter and the second information transmitter are connected to doubled transmission lines extending between cars and connected to doubled intra-car transmission lines.

3. The train information management apparatus according to claim 1 , wherein each of the first information transmitter and the second information transmitter includes a packet-generation-system selector configured to select, when the control input information input to the first train-control-information generator and the second train-control-information generator is first information that does not require a rise of control frequency of the receiving device, a first packet generation system for incrementing the sequence number by 1 every time the first train control information is generated and for incrementing the sequence number by 1 every time the second train control information is generated, and configured to select, when the control input information input to the first train-control-information generator and the second train-control-information generator is second information that requires a rise of control frequency of the receiving device, a second packet generation system for incrementing the sequence number by 2 every time the first train control information is generated and incrementing the sequence number by 2 every time the second train control information is generated.

4. The train information management apparatus according to claim 1 , wherein
each of the first information transmitter and the second information transmitter includes a packet-generation-system selector configured to select, when the control input information input to the first train-control-information generator and the second train-control-information generator is first information that does not require a rise of control frequency of the receiving device, a first packet generation system for incrementing the sequence number by 1 every time the first train control information is generated and for incrementing the sequence number by 1 every time the second train control information is generated, and configured to select, when the control input information input to the first train-control-information generator and the second train-control-information generator is second information that requires a rise of control frequency of the receiving device, a second packet generation system for incrementing the sequence number by 2 every time the first train control information is generated and incrementing the sequence number by 2 every time the second train control information is generated,
the first packet generator increments, when the control input information is the first information, the sequence number by 1 every time the first train control information is generated, and generates, as the first packet, a packet in which the sequence number has been given to the first train control information, and increments, when the control input information is the second information, the sequence number by 2 every time the first train control information is generated and generates, as the first packet, a packet in which the sequence number has been given to the first train control information, and
the second packet generator increments, when the control input information is the first information, the sequence number by 1 every time the second train control information is generated, and generates, as the second packet, a packet in which the sequence number has been given to the second train control information and increments, when the control input information is the second information, the sequence number by 2 every time the second train control information is generated, and generates, as the second packet, a packet in which the sequence number has been given to the second train control information.

5. The train information management apparatus according to claim 4 , wherein the packet-generation-system selector controls, when the control input information input to the first train-control-information generator and the second train-control-information generator is the first information, the first packet generator and the second packet generator such that the sequence number is incremented at any interval of the predetermined period and controls, when the control input information input to the first train-control-information generator and the second train-control-information generator is the second information, the first packet generator and the second packet generator such that the sequence number is incremented at every half time of the predetermined period.

6. A train information management apparatus comprising:
a first information transmitter connected to a first trunk transmission line disposed across a plurality of cars, which configure a formation of a train, and a second trunk transmission line disposed across a plurality of cars, which configure the formation of the train, and forming a redundant system of the first trunk transmission line, the first information transmitter including a first train-control-information generator configured to generate, based on control input information including notch information, first train control information serving as a control command signal for a receiving device mounted on the car and a first packet generator configured to increment a sequence number by 2 every time the first train control information is generated, and generate a first packet in which the sequence number has been given to the first train control information and alternately transmit, in the every predetermined period, the first packet to the first trunk t

Assignees

• Tatsumi Shogo
• Miyauchi Takashi
• Kadono Toshiko
• Komura Tetsuo
• Honda Shingo
• Sawa Takuya
• Mitsubishi Electric Corp

Inventors

• Tatsumi Shogo
• Miyauchi Takashi
• Kadono Toshiko
• Komura Tetsuo
• Honda Shingo
• Sawa Takuya

Classifications

• B61L15/0036 Primary

  Conductor-based, e.g. using CAN-Bus, train-line or optical fibres · CPC title

• B61L25/028

  Determination of vehicle position and orientation within a train consist, e.g. serialisation · CPC title

• H04L47/34 Primary

  ensuring sequence integrity, e.g. using sequence numbers · CPC title

• B61L99/00

  Subject matter not provided for in other groups of this subclass · CPC title