The CPMON 5303 monitoring system is composed by a network of cabin stations communicating with a central visualization/management station (host PC) through a radio connection.
In each cabin are installed a gamma monitor NAUSICAA 5301 IC and a filtered sampling device, as well as the electronics and the power supply batteries, linked to the solar panels installed on the top of the cabin.
Photovoltaic modules are connected to the instruments through a charge controller. In daytime the solar panels charge the batteries and provide the power supply, while at night it is provided by the batteries.
The monitors include a pressurized ionization chamber detector. The detector is connected and fully managed by the acquisition and control unit, which locally performs the functions of reading, processing and displaying data. The acquisition and control unit manages the status of alarm, pre-alarm and malfunction.
The central monitoring station consists of a host-PC which receives data from the cabins. The connection is established via WiFi directional antenna mounted on the cabins, and omni-directional antenna for reception / transmission from the central station. The graphical software installed on the host-PC enables the management overview of the whole monitoring system, displaying in real time the values of dose rate, the flows of the aspirations and the status of monitors. The user can remotely control the main functions that can be accessed locally from the NAUSICAA monitors. The data are stored in history files on a daily basis and saved to disk, and can be viewed and printed at any time. The central unit interrogates every minute the local units, which respond by sending the data. If it finds an alarm, the local unit transmits the data immediately, updated every second, without waiting for the query.