| 摘要 |
<p>System for detection and depiction of objects (16) in the course of speed boats and other marine vessels and for warning about objects that may constitute a risk to the navigational safety, said vessels preferably exhibiting a navigation and communication system (28), said system comprising a sweeping unit (10) for illumination of objects (16) within the field of view of the system, including a control unit (11) and an operator panel (12). The sweeping unit (10) comprises a light source (30), preferably an eye-safe IR laser, provided to emit a laser beam (33) within the field of view of the system, an optical sensor and pulse processing unit (21) comprising optical detectors (34, 38) for monitoring of the laser beam (33) output power and generation of start pulse for measurement of distance, for detection/reception of radiant energy reflected from objects (16), including measurement of distance to the reflecting object(s) (16) based on the time delay between emitted and reflected light, including energy and peak effect of the pulses. The sweeping unit (10) is arranged to sweep the laser beam (33) and the optical detector's (38) instantaneous field of view over the sweep area in question, by means of the presence of a first (19) and second (20) sweeping mechanism to obtain directional information related to the instantaneous radiation direction relative to the vessel.</p> |
