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Identify Non-Ship AIS Objects

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Aids to Navigation & Land-Based Stations show as shiptype 0 and translates to type RESE. this uses mssi_type to identify those non-ships and gives them types ANAV, LAND & COAS for future filtering.

Change type for shiptype 29 to ASAR to identify it's an airborne AIS object.
This commit is contained in:
rbollar
2025-01-31 06:51:39 +10:00
committed by wiedehopf
parent 54768f8411
commit 0b286f0d9c
1 changed files with 7 additions and 2 deletions
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9
html/script.js
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@@ -2136,7 +2136,7 @@ function processAIS(data) {
function shortShiptype(typeNumber) {
if (typeNumber <= 19) return "RESE";
if (typeNumber <= 28) return "WING";
if (typeNumber <= 29) return "SAR";
if (typeNumber <= 29) return "ASAR"; //Airborne SAR
if (typeNumber <= 30) return "FISH";
if (typeNumber <= 32) return "TUG";
if (typeNumber <= 33) return "DRED";
@@ -2183,7 +2183,7 @@ function processBoat(feature, now, last) {
ac.type = 'ais';
ac.gs = pr.speed;
ac.flight = pr.callsign;
ac.r = pr.shipname
ac.r = pr.shipname;
ac.seen = now - pr.last_signal;
ac.messages = pr.count;
@@ -2193,6 +2193,11 @@ function processBoat(feature, now, last) {
if (pr.destination) { ac.route = pr.destination; }
if (pr.shiptype !== undefined) { ac.t = shortShiptype(pr.shiptype); }
// Identify Non-Ship Types
if (pr.mmsi_type == 6) { ac.t = "ANAV"; } // Aids to Navigation
if (pr.mmsi_type == 5) {ac.t = "BASE"; } // Land Base Station
if (pr.mmsi_type == 3) {ac.t = "COAS"; } // Coast Station
if (feature.geometry && feature.geometry.coordinates) {
const coords = feature.geometry.coordinates;