Independent process signal control and monitoring system for a nuclear reactor containment vessel

A process signal control and monitoring system, comprising:

• a signal processing device which is installed on an outside of a nuclear reactor containment vessel,
• an internal electrical power source which charges a rechargeable battery with electric power, supplied from the signal processing device,
• an analog-digital converter which converts an analog signal into a digital signal, the analog signal transmitted from a sensor which is installed on an inside of the nuclear reactor containment vessel,
• an internal communicator, comprising a processor, which transmits the digital signal, converted in the analog-digital converter, to the signal processing device,
• an internal repeater which is installed on an inside of the nuclear reactor containment vessel, and
• an external repeater which is installed on the outside of the nuclear reactor containment vessel and when receiving a signal from the internal repeater, transmits the received signal to a communication satellite,
• wherein when electric power supply from the signal processing device is disconnected, the internal electrical power source supplies electric power, which is charged in the rechargeable battery, to the analog-digital converter and the internal communicator;
• and
• the internal communicator judges, after the electric power supply from the signal processing device is disconnected, whether communication with the signal processing device is connected or disconnected;
• and
• when the internal communicator judges that the communication with the signal processing device is connected, the internal communicator continues transmitting the digital signal, which is converted in the analog-digital converter, to the signal processing device.