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integrated-bridge-system

integrated ship bridge

Kongsberg K-Bridge, Wärtsilä NACOS, Furuno

SystemTechniques · 14Primitives · 53 integrated-bridge-system Alarm managementembedded · medium: Turn raw process limits into a few actionable operator alarms with delay, deadband, acknowledge and shelving states, plus flood measurement.›Hot-standby redundancyembedded · medium: A second, always-current controller shadows the primary and takes over within a few cycles of silence; epochs stop the old primary from fighting back.›Enc chart portrayalgeometry · medium: Render S-57/S-101 electronic navigational chart features via lookup tables and conditional symbology rules chosen by display modeLabel placement collisiongeometry · medium: Place map labels and icons without overlap using a collision grid and prioritiesPolygon tessellationgeometry · medium: Triangulate polygons with holes (ear clipping, earcut, monotone sweep)Assignment problem (Hungarian / Jon…graphs · medium: Optimal one-to-one matching of rows to columns in O(n³) by growing a matching along shortest augmenting paths over dual potentials.›Multi-object trackingmachine-learning · medium: Turn per-frame detections (camera boxes or radar plots) into persistent IDs by predicting each track, gating, assigning and managing track births and deaths.›R-treegeometry · low: A balanced tree of nested bounding boxes that indexes rectangles and points, answering window and nearest-neighbour queries by pruning whole subtrees.›Kalman filterrobotics · low: Optimal recursive estimator for a linear system with Gaussian noise: fuses a motion model with noisy measurements into a state estimate plus its covariance.›Geodesic distance (haversine, Vince…geometry · low: Shortest-path distance between two lat/lon points on the Earth: haversine on a sphere (about 0.5% error), Vincenty or Karney on the WGS84 ellipsoid (sub-millimetre).›Map projectionsgeometry · low: Web Mercator, UTM and equal-area projections, datums and coordinate transformsPoint in polygongeometry · low: Ray-casting/winding tests and indexed polygon lookup for reverse geocodingIP multicastnetworking · low: Send each datagram once to a class D group address; the network copies it to every joined receiver, and sequence numbers let receivers find loss.›Nmea ais sentence decodingnetworking · low: NMEA 0183 sentences with XOR checksums and AIS payloads with 6-bit ASCII armouring decoded into typed message fieldsPID controllerrobotics · low: Drive a measured value to a setpoint with three terms on the error: proportional, integral, derivative. The default feedback loop for motors, heaters, drones and gimbals.›Pure pursuit path trackingrobotics · low: Geometric path following by steering to a look-ahead point (pure pursuit, L1, Stanley)Cfar detectionsignal-processing · low: Constant false alarm rate detector: set the threshold from a noise estimate of neighbouring cells (CA, OS, GO/SO-CFAR)Debouncing throttlingsystems · low: Coalescing rapid events: debounce (wait for quiet), throttle (max rate), and cancelling stale in-flight requestsHierarchical state machinesystems · low: Nest states so a substate inherits its parent's reactions and only overrides what differs, with ordered entry and exit actions along the path.›Watchdog timerembedded · low: A hardware down-counter that resets the chip unless software proves, in time and in a plausible pattern, that it is still healthy.›d-ary heapdata-structures · low: Array heap with d children per node (d = 4 typical): half the binary heap's depth, siblings in one cache line, faster priority queues.›Spatial hashingphysics · low: Uniform grid stored in a hash table: bucket objects by cell, test only neighbouring cells; O(n) neighbour search for many similar-sized objects such as particles.›Exact geometric predicatesgeometry · low: Robust orient and incircle tests with adaptive-precision floats (Shewchuk) or exact arithmetic+ 7 more techniques+ 37 more primitives

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