Transmission/reception system and transmission/reception method
View Patent ↗Provided is a transmitting and receiving system and method in which a transmitting and receiving device mounted on an operation system unit can process a signal received from an equipment connected to a standby system unit and a signal to be transmitted to the equipment connected to the standby system unit. A data signal and a control signal to be transmitted to a receiving device of the operation system unit are multiplexed by a parallel/serial conversion using a multiplexer. The signals are transmitted to the operation system unit as a serial received signal. The signal is demultiplexed by a serial/parallel conversion using a demultiplexer of the operation system unit. Further, a data signal and a control signal to be transmitted to the equipment connected to the standby system unit are multiplexed by a parallel/serial conversion using a multiplexer. The signals are transmitted from the operation system unit to the standby system unit as a serial signal to be transmitted. The signal is demultiplexed by a serial/parallel conversion using a demultiplexer of the standby system unit.
1. A transmitting and receiving system that is provided in a duplexed system comprising an operation system unit and a standby system unit,
wherein when a malfunction occurs in the operation system unit, the standby system unit operates in place of the operation system unit, and the transmitting and receiving system comprises:
a multiplexer included in the operation system unit;
a demultiplexer included in the operation system unit;
a multiplexer included in the standby system unit;
a demultiplexer included in the standby system unit;
a circuit configured to: perform a parallel/serial conversion on a data signal and a control signal, which have been received by the standby system unit from an equipment connected to the standby system unit, using the multiplexer of the standby system unit to multiplex the signals into a first serial signal; transmit the first serial signal from the standby system unit to the operation system unit; and perform a serial/parallel conversion on the first serial signal using the demultiplexer of the operation system unit to demultiplex the first serial signal and supply the demultiplexed signals to a receiving device in the operation system unit, and
a circuit configured to: perform a parallel/serial conversion on a data signal and a control signal, which have been prepared by the operation system unit for transmitting the signals through the standby system unit to the equipment connected to the standby system unit, using the multiplexer of the operation system unit to multiplex the signals into a second serial signal; transmit, from the operation system unit to the standby system unit, the second serial signal; and perform a serial/parallel conversion on the second serial signal using the demultiplexer of the standby system unit to demultiplex the second serial signal and supply the demultiplexed signals to a transmitting device in the standby system unit.
2. The transmitting and receiving system according to claim 1 ,
wherein a plurality of equipments is connected to each of the operation system unit and the standby system unit and the number of the equipments connected to the operation system unit is the same as the number of the equipments connected to the standby system unit, and
each of the multiplexer of the operation system unit, the multiplexer of the standby system unit, the demultiplexer of the operation system unit, and the demultiplexer of the standby system unit processes signals transmitted and to be received by the plurality of equipments.
3. The transmitting and receiving system according to claim 1 further comprising:
a circuit configured to supply, to the receiving device in the operation system unit, the data signal and the control signal received by the operation system unit from the equipment connected to the operation system unit; and
a circuit configured to transmit, to the equipment connected to the operation system unit, the data signal and the control signal input from the transmitting device of the operation system unit.
4. The transmitting and receiving system according to claim 3 further comprising:
a circuit configured to prevent a supply, to the receiving device in the operation system unit, the data signal and the control signal received by the standby system unit from the equipment connected to the standby system unit;
a circuit configured to prevent a supply, to the receiving device in the standby system unit, the data signal and the control signal received by the operation system unit from the equipment connected to the operation system unit;
a circuit configured to supply, to the receiving device in the standby system unit, the data signal and the control signal received by the standby system unit from the equipment connected to the standby system unit;
a circuit configured to prevent a transmission of the data signal and the control signal input from the transmitting device in the standby system unit to the equipment connected to the operation system unit;
a circuit configured to prevent a transmission of the data signal and the control signal input from the transmitting device in the operation system unit to the equipment connected to the standby system unit; and
a circuit configured to supply, to the equipment connected to the standby system unit, the data signal and the control signal input from the transmitting device in the standby system unit.
5. The transmitting and receiving system according to claim 1 ,
wherein a sampling rate of the multiplexers of the operation system unit and the standby system unit is set as a baud rate×M×N,
the M is an minimum power-of-two integer that is equal to or more than a value required for the serial received signal or the serial signal to be transmitted,
the N is an integer that is one or more.
6. A transmitting and receiving method used in a duplexed system comprising an operation system unit and a standby system unit,
wherein when a malfunction occurs in the operation system unit, the standby system unit operates in place of the operation system unit, and the method comprises:
performing a parallel/serial conversion on a data signal and a control signal, which have been received by the standby system unit from an equipment connected to the standby system unit using a multiplexer of the standby system unit to multiplex the signals into a first serial signal; transmit the first serial signal from the standby system unit to the operation system unit; and perform a serial/parallel conversion on the first serial signal using a demultiplexer of the operation system unit to demultiplex the first serial signal and supply the demultiplexed signals to a receiving device in the operation system unit, and
performing a parallel/serial conversion on a data signal and a control signal, which have been prepared by the operation system unit for transmitting the signals through the standby system unit to the equipment connected to the standby system unit, using a multiplexer of the operation system unit to multiplex the signals into a second serial signal; transmitting, from the operation system unit to the standby system unit, the second serial signal; and performing a serial/parallel conversion on the second serial signal using a demultiplexer of the standby system unit to demultiplex the second serial signal and supply the demultiplexed signals to a transmitting device in the standby system unit.
7. The transmitting and receiving method according to claim 6 ,
wherein a plurality of equipments is connected to each of the operation system unit and the standby system unit and the number of the equipments connected to the operation system unit is the same as the number of the equipments connected to the standby system unit, and
each of the multiplexer of the operation system unit, the multiplexer of the standby system unit, the demultiplexer of the operation system unit, and the demultiplexer of the standby system unit processes signals transmitted and to be received by the plurality of equipments.
8. The transmitting and receiving method according to claim 6 further comprising:
supplying, to the receiving device in the operation system unit, the data signal and the control signal received by the operation system unit from the equipment connected to the operation system unit; and
transmitting, to the equipment connected to the operation system unit, the data signal and the control signal input from the transmitting device of the operation system unit.
9. The transmitting and receiving method according to claim 8 further comprising:
preventing a supply, to the receiving device in the operation system unit, the data signal and the control signal received by the standby system unit from the equipment connected to the standby system unit;
preventing a supply, to the receiving device in the standby system unit, the data signal and the control signal received by the operation system unit from the equipment connected to the operation system unit;
supplying, to the receiving device in the standby system unit, the data signal and the control signal received by the standby system unit from the equipment connected to the standby system unit;
preventing a transmission of the data signal and the control signal input from the transmitting device in the standby system unit to the equipment connected to the operation system unit;
preventing a transmission of the data signal and the control signal input from the transmitting device in the operation system unit to the equipment connected to the standby system unit; and
supplying, to the equipment connected to the standby system unit, the data signal and the control signal input from the transmitting device in the standby system unit.
10. The transmitting and receiving method according to claim 6 ,
wherein a sampling rate of the multiplexers of the operation system unit and the standby system unit is set as a baud rate×M×N,
the M is a minimum power-of-two integer that is equal to or more than a value required for the serial received signal or the serial signal to be transmitted,
the N is an integer that is one or more.