for precise synchronization of the acoustic network. The AUV’s surface communication module comprises Wifi, Radio and GNSS with a combined collapsible antenna (and an optional Iridium/GSM modem). The propulsion system includes 4 horizontal thrusters in X-shaped configuration and 3 vertical thrusters for maneuverability and speed, and the vehicle is able to hold position and hover in the water column. The PingGuin’s step back from its wildlife counterpart is the anchoring mechanism that extends out of the vehicle’s body and allows it to remain stationary at the seafloor. The anchoring tripod is a pop-out construction coming flush with the vehicle’s body when retracted. The PingGuin’s “beak” features a grip mechanism that can enable docking. Within the MUM system, a group of PingGuin AUVs is designed to form a flexible and adaptable acoustic network. When hovering, the AUVs can form a relay to transfer data from mobile or stationary MUM modules. A PingGuin can operate as a surface node and transfer data over WiFi, radio, or optional GSM to a support vessel or a shore station. With its GNSS antenna and an acoustic modem, the surface node can perform geo-referencing of other underwater assets deployed within the modular MUM network. For operations that require accurate LBL positioning, a group of PingGuin AUVs would use the anchoring function and become seafloor nodes performing as the LBL baseline. Using AUVs as LBL baseline would eliminate the need to recover seafloor nodes when the LBL coverage area needs to be repositioned. The PingGuin’s basic functions (mobility, communication and positioning) were tested in tank and open-water trials and presented at the MUM project demonstration in Kiel. Team EvoLogics is now finalizing the advanced functionality of the AUV to conduct further trials.
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