ION’s PCS is the control and data acquisition platform for all ION Marine Imaging Systems’ in-water positioning devices. The system is composed of two major components, the DMU (Data Management Unit), and the LIU (Line Interface Unit), each with it’s own dedicated processor.
The Data Management Unit (DMU) controls all high level system interface functions including triggers from NAV, data distribution, in-water device commands, and primary processing of sensor data prior to distribution to other interfaced systems.
The Line Interface Unit (LIU) is the interface between the in-water positioning devices and the DMU. It translated DMU data and control requests into device-specific communications by converting the digital data streams into FSK signals for transmission to the in-water devices and then converting device responses from FSK signals into digital data streams and translating those into high-level data formats for the DMU. The LIU comes in 8 channel and 2 channel versions.
The Operator Interface (OI)* is the main console where operators enter commands to control sensors on the streamer cable and to display and analyze sensor measurement data locally. Communication with the DMU is through the Ethernet port. Multiple OI stations allow cable and navigation control at separate stations.
*Note – A separate software license is required for the Operator Interface.