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LINE SIGNAL · Time-series Anomaly Detection

Read the faint signals your equipment sends —
before they become failures

LINE SIGNAL learns the multivariate time-series of normal operation — vibration, current, temperature, pressure — and quantifies deviation as a real-time anomaly score. From chemical reactors to rotating machinery, it starts working without a single failure label.

5.2 days
avg. early-warning lead time
37%↓
unplanned downtime
<100ms
streaming scoring latency
INPUT

Sensor · DCS/PLC streams

Read-only tag ingestion via OPC-UA · Modbus · MQTT

MODEL

Normal-state model

Multivariate model trained on normal operation only

SCORE

Real-time anomaly score

Deviation quantified with per-channel attribution

ACT

Alerts · control hooks

Alerts, CMMS work orders, correction proposals

/01 How it works

Learn what normal looks like, and every abnormal becomes visible

Threshold-based monitoring misses the moment when the relationship between channels breaks down. LINE SIGNAL models the multivariate pattern of normal operation itself, catching states where every value is in range — but the combination is wrong.

01 · INGEST

Collect & clean

Second-level ingestion over OPC-UA/Modbus/MQTT with gap filling, noise filtering and operating-mode tagging

02 · MODEL

Learn normal

Reconstruction-error-based multivariate model trained on normal windows only — no labels needed

03 · SCORE

Score anomalies

Anomaly score decomposed into per-sensor contributions: which channel, and by how much

04 · ACT

Respond & feed back

Duration-filtered alerts, CMMS integration, and (LV.2+) control correction proposals

* Verdicts and operator feedback flow back as training data, so the model keeps adapting to your plant.

UNSUPERVISED

Start without failure data

An unsupervised approach trained on normal data only. New equipment and low-failure critical assets can be monitored from the first month.

MULTIVARIATE

Cross-channel correlation

Temperature normal, pressure normal — but their relationship is off? We detect correlation breakdown that single-threshold monitoring cannot see.

EXPLAINABLE

Scores that show the cause

Every anomaly score is decomposed into sensor contributions — "bearing #3 vibration, 62%" — cutting root-cause time dramatically.

ADAPTIVE

Drift & false-alarm control

Seasonality, feedstock lots and operating-condition changes are absorbed by periodic retraining; duration and mode filters suppress noise-driven alarms.

/02 Use Cases

Use Case Analysis

From continuous chemical processes to discrete manufacturing — wherever time-series exists, it applies.

Chemicals · Reaction process

Batch quality deviation, flagged 5 days early

Challenge

Intermittent reactor trips and quality drift kept forcing batch write-offs, and single-instrument alarms showed no warning signs.

Approach

Read-only collection of 24 DCS channels (temperature, pressure, flow, agitation) and a multivariate model built from golden-batch profiles.

Result

Average 5.2-day early warning enabled planned maintenance; unplanned stops fell 37%. Now extended to golden-batch correction proposals (LV.1).

Machinery · Rotating equipment

From sudden breakdowns to planned maintenance

Challenge

Bearings and gears in presses, motors and reducers failed without warning, stopping entire lines for hours.

Approach

Fused vibration-spectrum and load-current analysis detected the growth trend of fault-frequency components early.

Result

Sudden stops became planned interventions, and component life is now managed on evidence — cutting spare-part inventory as well.

Batteries · Formation process

Abnormal cells screened from a single curve

Challenge

Defective cells were only identified late in formation, so full process resources were spent on cells destined to fail.

Approach

Anomaly detection on the shape of charge/discharge voltage-current curves screened abnormal cells in early cycles.

Result

Early isolation cut downstream waste, and curve-shape data now feeds cell quality grading.

* Figures and scenarios reflect representative deployments and may vary by process and data conditions.

/03 Specifications

Specs & Integration

Input protocols
OPC-UA · Modbus TCP · MQTT · CSV/historian backfill. Read-only connection to existing DCS/PLC tags (no control-system changes)
Channel scale
Tens to hundreds of channels per line, multi-line expansion supported
Scoring latency
Score refresh within 100ms of stream; alert filters (duration · operating mode) configured separately
Training data
2–4 weeks of normal operation recommended (20–50 normal batches for batch processes)
Deployment
Edge gateway · on-premise server · air-gapped operation supported
Integrations
CMMS work orders · MES · messenger/mobile alerts · (LV.2+) DCS correction-proposal interface
Dashboard
Channel attribution · anomaly history · per-asset health trends
/04 FAQ

Frequently Asked Questions

We have almost no failure data. Is that a problem?
No — that is exactly the scenario this is built for. The model is trained on normal operation only, so no failure labels are needed. Any failure cases you do have are used only to validate thresholds.
Won't alarms fire too often?
Anomaly scores pass through duration filters and operating-mode awareness to suppress transient noise and start/stop artifacts. During the PoC we tune thresholds with your team until only alarms worth checking remain.
Do we have to replace our DCS/PLC?
No. We only read tags from your existing control system — control logic and safety systems are untouched. LV.2+ control hooks go through your existing approval workflow.
How many assets should we start with?
We recommend a PoC on one or two critical assets with high downtime cost or frequent failures. Verify performance in numbers within four weeks, then scale line by line.
Get Started

Find out if this asset can warn you before it stops

Tell us about your process and data environment — we will come back with a feasibility summary and expected impact.