摘要:
In a portable communication terminal 10 which is capable of communicating with an information terminal 20 between different kinds of networks, the portable communication terminal 10 includes a plurality of radio communication sections 11, 21 which carry out data communications, respectively in respective service areas of the different kinds of networks, data communication control sections 12, 22 which control the data communications of a plurality of radio communication sections 11, 21 by their own first control commands of respective radio communication sections 11, 21, and a command conversion section 13 which carries out conversion of the first control commands used by the data communication control sections 12, 22 and a second control command used for a communication with the information terminal 20.
摘要:
A train detection system includes transmitters receivers connected to a track circuit for transmitting and receiving a train detecting signal to and from the track circuit, and a control device on the ground, which transmits the train detecting signal to the transmitter and receives the train detection signal from the receiver. The transmitter adds a first unique code data to the train detecting signal received from the control device and transmits the same to the track circuit, and the receiver adds a second unique code data to the train detecting signal being added of the first unique code data received from the track circuit and transmits the same to the control device. The control device on the ground includes a storage portion and a collating portion which collates whether the first and second unique code data received from the receiver coincide with data stored in advance in the storage portion.
摘要:
A transmitter and receiver device used together with a control device provided on ground, which performs detection of a train, performs transmission and reception of a train detecting signal, and collates data added to a received train detection signal with predetermined data. A transmitter, to be connected to a track circuit, transmits a train detecting signal, to the track circuit, and a receiver, to be connected to the track circuit, receives the train detecting signal from the track circuit. The transmitter adds a first unique code to the train detecting signal transmitted from the control device provided on the ground and transmits the same to the track circuit. The receiver adds a second unique code to the train detecting signal which was the first unique code added thereto and received from the track circuit and transmits the same to the control device provided on the ground.
摘要:
In a railway information transmission method and system wherein information is transmitted by a consecutive transmission mode between on-vehicle control equipment and ground control equipment, a redundant code which is updated in accordance with a predetermined procedure every transmission processing is affixed to information to-be-communicated, the information being then transmitted, and on a reception side, a logical operation is performed on the redundant code which is contained in the received information and a redundant code which is created on this side and which is updated in a predetermined procedure. Thus, the trouble of a transmission path can be simply found, and further, the safety. of train service based on an automatic train control or the like can be enhanced.
摘要:
In the state that a train moves from a track circuit 3T toward a track circuit 5T, and a train detection signal TD1 is supplied from the boundary between the track circuits 3T and 5T to the track circuits 3T and 5T, and the train detection signal TD1 is received by the train, if the signal intensity is suddenly reduced greatly immediately after the axle of the train passes the boundary between the track circuits 3T and 5T, it can be decided that the train passes the boundary between the track circuits 3T and 5T. Therefore, if absolute position information of the track circuit 5T is preserved beforehand in the train, the movement distance calculated from pulse output of a speed generator is corrected (replaced) in the absolute position information of the track circuit 5T, and hereafter is updated by the pulse output, thus the position of the own train can be easily detected as a movement distance.
摘要:
A train detection system includes transmitters receivers connected to a track circuit for transmitting and receiving a train detecting signal to and from the track circuit, and a control device on the ground, which transmits the train detecting signal to the transmitter and receives the train detection signal from the receiver. The transmitter adds a first unique code data to the train detecting signal received from the control device and transmits the same to the track circuit, and the receiver adds a second unique code data to the train detecting signal being added of the first unique code data received from the track circuit and transmits the same to the control device. The control device on the ground includes a storage portion and a collating portion which collates whether the first and second unique code data received from the receiver coincide with data stored in advance in the storage portion.
摘要:
A train detection system and method in which a transmitter transmits a train detecting signal, a receiver receives the train detecting signal, and a control device on the ground which is connectable to the transmitter and transmits the train detecting signal to the transmitter and receives the train detecting signal from the receiver. The transmitter adds first unique code data to the train detecting signal transmitted from control device on the ground and the receiver adds second unique code data to the train detecting signal. The control device on the ground collates whether the first unique code data and the second unique code data received from said receiver coincide with predetermined data contents.
摘要:
A train detection system, including a transmitter, to be connected to a track circuit, which transmits to the track circuit a train detecting signal for confirming the existence of a train in the track circuit, a receiver, to be connected to the track circuit, which receives the train detecting signal from the transmitter through the track circuit, and a wayside controller. The wayside controller is connected to the transmitter and the receiver through a data transmission path, which transmits the train detecting signal to the transmitter and receives the train detecting signal from the receiver. The wayside controller includes a checker for checking whether or not the train detecting signal, which is received from the receiver, agrees with the contents of predetermined data.
摘要:
A train detection system is capable of realizing reliable train detection with a train detection apparatus of simple construction using a track circuit. This is attained by a transmitter 11a adding data of a first unique code to a train detecting signal received from wayside controller 100 and transmitting it to a track circuit; a receiver 11b adding data of a second unique code to the train detecting signal added with the first unique code data received from the track circuit and transmitting it to the wayside controller 100; and the wayside controller 100 checking whether or not the data received from the receiver 11b agrees with predetermined data.
摘要:
In the state that a train moves from a track circuit 3T toward a track circuit 5T, and a train detection signal TD1 is supplied from the boundary between the track circuits 3T and 5T to the track circuits 3T and 5T, and the train detection signal TD1 is received by the train, if the signal intensity is suddenly reduced greatly immediately after the axle of the train passes the boundary between the track circuits 3T and 5T, it can be decided that the train passes the boundary between the track circuits 3T and 5T. Therefore, if absolute position information of the track circuit 5T is preserved beforehand in the train, the movement distance calculated from pulse output of a speed generator is corrected (replaced) in the absolute position information of the track circuit 5T, and hereafter is updated by the pulse output, thus the position of the own train can be easily detected as a movement distance.