Edge AI~6 min read
Running lightweight models on the edge gateway: latency vs privacy阅读 2.8k
Move inference from the cloud to the gateway so sensor data can stay on-site for anomaly detection and simple decisions.
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Blog posts
Full list of all articles; the home page shows paginated previews (20 per page). Permalink /blog.
- Edge AI~6 min read
Firmware OTA on constrained gateways: rollback, signing, and staged fleets阅读 2.5k
Ship updates without bricking devices—partitioning, dual-bank images, and canary groups.
- Connectivity~5 min read
OPC-UA into the cloud: sampling rates, subscriptions, and backpressure阅读 503
Bridge plant floors to telemetry buses without melting your broker or historians.
- Connectivity~5 min read
LoRaWAN sensor density: duty cycle, ADR, and when to add another gateway阅读 3.6k
Plan capacity before you deploy hundreds of nodes in one yard.
- Connectivity~5 min read
MQTT topics and device shadow: an evolvable message topology阅读 1.9k
From a single project to multi-tenant setups—how to name topics and model shadow state without painting yourself into a corner.
- Connectivity~4 min read
Modbus TCP collectors at the edge: polling intervals and tag normalization阅读 4.3k
Keep scans predictable and map registers to a clean thing model upstream.
- AI for ops~7 min read
Lightweight digital twins: what to model first on a factory floor阅读 845
Start with assets, alarms, and throughput—not every bolt on day one.
- Edge AI~6 min read
Unsupervised anomaly detection on telemetry streams: pitfalls and baselines阅读 571
Seasonality and maintenance windows will fool naive thresholds—plan for them.
- AI for ops~7 min read
Time-series data + RAG: helping ops assistants read your curves阅读 3.2k
Vectorize metric summaries and alert text so you can query historical conditions and runbooks in conversation.
- AI for ops~6 min read
Kubernetes at the far edge: when k3s beats full clusters阅读 6.4k
Match orchestration weight to power, staff skills, and offline tolerance.
- Data~5 min read
Time-series retention: hot, warm, cold, and compliance-friendly downsampling阅读 5.0k
Keep query latency sane while preserving evidence for audits.
- AI for ops~4 min read
Webhook-style alerts: retries, idempotency, and noisy device storms阅读 9.8k
Design alert delivery so duplicate bursts do not page the whole team.
- Connectivity~5 min read
gRPC vs MQTT for device APIs: streaming, firewalls, and codegen阅读 8.6k
Pick the contract style that matches your connectivity and client stacks.
- Data~5 min read
Cold chain monitoring: probe placement, drift calibration, and excursion rules阅读 2.1k
Reduce false positives when doors open or trucks reload.
- Security~6 min read
On-camera AI and privacy: ROI masks, retention limits, and audit trails阅读 2.0k
Ship useful vision features without storing more pixels than you need.
- Connectivity~5 min read
PLC integration checklist: tags, safety interlocks, and test harnesses阅读 8.8k
Treat the PLC as the source of truth for physical state.
- Security~6 min read
Multi-tenant device registries: isolation, quotas, and shared gateways阅读 5.6k
Separate namespaces early so one customer cannot enumerate another’s fleet.
- Data~5 min read
Edge-to-cloud sync: conflict resolution when links flap for hours阅读 6.4k
Use version vectors or last-writer-wins with explicit domains.
- AI for ops~5 min read
Energy metering at the edge: baselines, tariffs, and anomaly alerts阅读 4.7k
Normalize units and clock skew before comparing sites.
- Edge AI~7 min read
Predictive maintenance starter kit: labels, sensors, and honest baselines阅读 7.5k
Without failure history, start with health scores—not magic failure dates.
- Data~5 min read
Graph DBs for network topology: when edges matter more than rows阅读 513
Model dependencies for blast-radius during outages and upgrades.
- Data~5 min read
SQLite vs TimescaleDB on gateways: durability, replication, and queries阅读 3.5k
Match local storage to query patterns and crash safety requirements.
- Security~6 min read
Network segmentation for IoT VLANs, ACLs, and jump hosts阅读 1.7k
Assume compromise; limit lateral movement from cheap cameras and sensors.
- Security~5 min read
HIPAA-flavored deployments at the edge: PHI minimization and access logs阅读 6.8k
Not legal advice—just engineering habits that help audits go smoother.
- AI for ops~6 min read
Digital thread basics: lot codes, work orders, and sensor lineage阅读 3.1k
Tie production events to telemetry for faster root cause.
- Connectivity~4 min read
Thin clients for HMIs: kiosk mode, offline UX, and remote support阅读 3.1k
Operators need clarity when the uplink dies.
- AI for ops~5 min read
Voice assistants in ops centers: wake words, RBAC, and noisy floors阅读 1.8k
Authenticate actions and avoid broadcasting sensitive readouts.
- Data~4 min read
Synthetic telemetry for testing pipelines without production secrets阅读 6.2k
Replay shapes and edge cases your real fleet rarely hits.
- AI for ops~5 min read
Cost telemetry per device: data volume, compute minutes, and support tickets阅读 9.8k
Price SKUs with real marginal cost—not flat per-device guesses.
- Connectivity~5 min read
Sunsetting legacy gateways: feature flags, dual-write, and customer comms阅读 4.2k
Retire hardware without surprise downtime during busy seasons.
- Connectivity~4 min read
BACnet read schedules: COV vs polling when your MS/TP bus is crowded阅读 1.7k
Tune scan rates so panels stay responsive while historians stay fresh.
- Edge AI~5 min read
Model cards for edge ML: inputs, drift sensors, and known failure modes阅读 7.1k
Give operators enough context to trust—or override—local inference.
- Connectivity~5 min read
MQTT QoS in production: when QoS 2 is worth the overhead阅读 9.1k
Match delivery semantics to billing, safety, and deduplication needs.
- Data~5 min read
SCADA historian latency: batch inserts vs line protocol at the edge阅读 4.6k
Avoid blocking the PLC driver thread with slow database writes.
- Security~6 min read
Zero-trust access for field technicians: short-lived certs and jump boxes阅读 2.8k
Replace shared VPN passwords with audited, time-bound sessions.
- Connectivity~5 min read
GPS and PTP for edge time sync: holdover when the sky is blocked阅读 3.3k
Bad timestamps break correlation across sites—plan for drift.
- AI for ops~5 min read
Shrinking OCI images for edge Kubernetes: distroless and multi-stage builds阅读 6.9k
Pull times and disk matter when uplinks are megabits, not gigabits.
- AI for ops~5 min read
Measuring alert fatigue: MTTA, noise ratio, and on-call sentiment阅读 640
If nobody trusts alerts, automation will be ignored—quantify the pain.
- Connectivity~6 min read
Thread and Matter in buildings: commissioning flows that survive tenant churn阅读 9.4k
Plan factory resets and re-keying without truck rolls.
- Data~5 min read
Streaming SQL vs time windows: picking primitives for telemetry pipelines阅读 4.7k
Sometimes a 5-minute tumble window beats a custom state machine.
- Security~5 min read
HVAC control loops: software limits that respect hardware interlocks阅读 3.9k
Never bypass the BMS safety chain from the cloud API.
- Edge AI~6 min read
Label quality for edge vision: class imbalance and night-shift drift阅读 3.3k
Retrain triggers should fire on precision drops, not calendar dates.
- Connectivity~6 min read
High-availability MQTT bridges: split-brain and backlog replay阅读 4.7k
Dual gateways need deterministic merge rules for command topics.
- Data~4 min read
CSV exports auditors actually want: stable columns and row-level lineage阅读 8.1k
Freeze schemas for compliance windows; document transformations.
- Security~5 min read
Rotating secrets on edge agents without dropping MQTT sessions阅读 2.8k
Stagger renewals and support two valid keys during overlap.
- AI for ops~4 min read
Digital signage uptime: caching content and graceful offline loops阅读 6.4k
Retail and ops boards should degrade visibly, not go blank.
- Data~4 min read
Water leak sensors: placement, cable routing, and nuisance alarms阅读 5.0k
Pair point sensors with zone logic to survive mopping and condensation.
- AI for ops~5 min read
OpenTelemetry on gateways: tail sampling when egress is expensive阅读 5.0k
Keep error traces rich while summarizing healthy device chatter.
- Connectivity~5 min read
RF interference in warehouses: Wi-Fi, scanners, and forklift telemetry阅读 3.6k
Site surveys beat guesswork when metal racks move seasonally.
- Data~5 min read
Capacity planning for ingest spikes: Black Friday and harvest seasons阅读 4.5k
Load test with burst shapes, not flatlines.