APEX Marine turns a single indicator diagram — a CSV log, a spreadsheet, or a photograph off the gauge — into a cylinder-by-cylinder diagnosis: gas leakage percentage, injector wear, and a confidence score behind every call.
Four steps, no teardown required to find out what's wrong.
Upload a CSV or spreadsheet pressure log, or photograph a printed indicator diagram straight off the instrument.
The trace is digitised if needed, then reduced to invariant features across the 360–722°CA diagnostic window.
CNN-LSTM compares against a matched baseline; SVM classifies from features alone. APEX picks the best available.
Every reading is queued the moment it's diagnosed and uploaded to shore whenever a connection is available.
Not a pass/fail light — a graded diagnosis with the numbers behind it, built around real cylinder pressure physics.
CNN-LSTM reads the delta against a matched baseline operating point; SVM classifies from invariant features with no baseline at all. Each cross-checks the other.
Cylinder gas leakage is reported as healthy, moderate, or severe — with a decision margin attached, so a borderline call is never disguised as a confident one.
Spray-geometry erosion shows up as asymmetry in the pressure derivative long before it shows up on deck. APEX flags nozzle wear from the trace shape alone.
No logger output on hand? Photograph the printed diagram, set the axis limits, and APEX rebuilds the p–φ curve automatically for diagnosis.
Diagnosis never waits on a signal. Every reading is analysed and held locally, ready to upload the moment shore connectivity returns.
Running totals of faults versus healthy readings, synced in one tap, so a chief engineer can hand over a shift with the full picture.
A pressure trace tells you everything about a cylinder, if you know how to read the shape of the curve. APEX reads it the same way an experienced engineer would — it just doesn't need thirty years to learn how.
Skewness, EVO pressure, asymmetry — invariant features derived from the trace itself, not a black box.
No matched baseline on file? The SVM engine still classifies from the trace alone.
Offline-capable by default — a weak shore signal never blocks a diagnosis.
Confidence and decision margin are surfaced on every reading, not hidden behind a verdict.
APEX defaults to the highest-accuracy mode it has the data for, and tells you when it falls back.
No. The SVM engine classifies cylinder leakage and injector wear from the trace's own invariant features, with no baseline required. CNN-LSTM is used automatically when a matched baseline is available, for a higher-accuracy comparison.
Photograph it. APEX digitises the printed curve from the image once you set the axis limits, then runs the same diagnostic pipeline as a logged CSV.
Nothing waits. Every reading is diagnosed and queued locally the moment you run it, then synced in one tap whenever a connection is available.
APEX Marine reads a diesel engine's cylinder pressure trace the way an experienced engineer does — by the shape of the curve across the 360°–722°CA window — and turns that into a graded, confidence-scored diagnosis for cylinder gas leakage and injector wear.
Two independent diagnostic engines, CNN-LSTM and SVM, cross-check every reading. Input comes from a logged CSV, a spreadsheet, or a single photograph of a printed indicator diagram — whatever is actually on hand in the engine room.