Technology
Because the first system remains under development, this page provides only a high-level overview. Detailed architecture, implementation methods, and performance results may change as testing continues.
The developing system consists of crew-worn devices, fixed vessel reference devices, and an onboard computing platform. Measurements are collected and processed locally to estimate crew locations and evaluate movement that may require attention.
The current prototype uses ultra-wideband radio technology to measure distances between crew devices and vessel-mounted reference points. Those measurements are intended to support real-time position estimates within the vessel environment.
A secondary Bluetooth Low Energy layer is being evaluated for perimeter areas and enclosed vessel spaces. It is intended to provide an independent source of presence information that may support, but not replace, the primary positioning system.
The prototype includes crew-carried radio devices, vessel-mounted reference devices, an onboard computer, a local display, data and power connections, and planned audible or visual alert hardware. Final commercial hardware has not yet been selected.
The onboard software is being developed to collect device measurements, estimate positions, display system status, record test data, and evaluate configurable event-detection rules.
Reference devices would be mounted at surveyed locations around the vessel to create a positioning area suited to its geometry. Additional receivers may be placed near vessel boundaries or below deck to improve awareness across areas with different radio conditions.
Development priorities include consistent detection, manageable false-alert rates, clear operator feedback, local operation without dependence on shore-based connectivity, and continued function under practical vessel conditions. These remain engineering goals rather than verified commercial performance claims.
Development has included controlled distance calibration, an initial vessel field test, a formal controlled localization validation session, and a calibration update that was independently validated for improved accuracy. Results from each stage continue to refine both the hardware configuration and detection logic ahead of expanded vessel testing.
Future work may include improved enclosure design, additional detection layers, alarm integration, data logging, vessel-specific configuration, search-and-rescue support, and evaluation across larger and more complex vessel environments.
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