← Back
Home › Systems › Embedded and IoT

industrial-iot-platform

IIoT platforms

PTC ThingWorx, Siemens Insights Hub, AWS IoT SiteWise, Cognite Data Fusion, Litmus Edge

SystemTechniques · 18Primitives · 71 industrial-iot-platform Clock synchronizationdistributed · medium: Estimate a clock's offset from four timestamps, filter out queueing noise, and steer the clock smoothly; NTP gets about a millisecond, PTP with hardware timestamps under a microsecond.›Deterministic simulation testingdistributed · medium: Run the whole system in one thread under a seeded scheduler with simulated network, disk and clock, so every failure replays from its seed.›Device shadow state syncdistributed · medium: Desired vs reported device state documents with versions and delta reconciliationPrimary-backup replicationdistributed · medium: One node orders all writes and ships them to standbys; the acknowledgement rule (none, one, all) sets what a crash loses, and an external arbiter decides who takes over.›Coverage-guided fuzzingsecurity · medium: Mutate inputs, run an instrumented target, and keep any input that reaches a new code edge; feedback turns blind guessing into incremental search.›TLS 1.3security · medium: The standard encrypted, authenticated transport; one round trip, only forward-secret AEAD suites, and little left to misconfigure.›Time-series anomaly detectionstatistics · medium: Predict the expected value from a seasonal baseline, scale the residual by a robust spread (MAD), threshold at a chosen false-alarm rate, then merge flags into incidents.›Delta encodingcompression · low: Store differences between consecutive values instead of the values, turning sorted IDs, timestamps and counters into small numbers that pack into few bits.›Mqtt protocolnetworking · low: MQTT pub/sub: topics, QoS 0/1/2, retained messages, sessions and keepaliveWrite-ahead logstorage · low: Append each change to a checksummed sequential log and fsync it before touching data pages; the basis of crash durability in nearly every database.›X509 certificatessecurity · low: Certificate chains, path validation, SANs, revocation and short-lived issuanceGorilla XOR compressioncompression · low: Time-series codec: delta-of-delta timestamps plus XOR of consecutive float bit patterns, storing only changed bits; about 1.4 bytes per point.›Swinging door compressioncompression · low: Deadband and swinging-door trending compression for process historiansHdr histogramdata-structures · low: Log-linear bucketed histograms with bounded relative error for latency percentilesTopic matching triedata-structures · low: Trie over topic levels with + and # wildcards for subscription matchingConsistent hashingdistributed · low: Hash nodes and keys onto a ring; each key belongs to the next node clockwise, so membership changes move only about 1/n of keys.›Modbus protocolembedded · low: Modbus RTU/TCP registers and function codes with polling and CRCOpc uaembedded · low: OPC UA industrial protocol: address space, subscriptions and monitored items, security modesProcess supervisionhardware-os · low: A parent process starts services, reaps their exits and restarts them under a delay and burst-limit policy, then stops them with SIGTERM before SIGKILL.›epoll event loopnetworking · low: One thread waits on thousands of non-blocking sockets with epoll_wait and handles only ready ones; the core of nginx, Redis and tokio.›Mutual TLSsecurity · low: TLS where the client also proves a certificate key, so every connection carries a verified, rotatable machine identity.›Closure tablestorage · low: Storing trees and hierarchies in relational tables (closure table, materialized path) for fast subtree queriesExponential backoff with jittersystems · low: Retry after delays that grow geometrically and are randomized, so failed clients spread out instead of hammering a recovering service in synchronized waves.›+ 11 more techniques+ 55 more primitives

Similar systems

Share the most building blocks with this one.

iot-fleet 56 %mqtt-broker 37 %fleet-telematics 37 %email 36 %building-automation 34 %