====== Technology ======

This namespace holds AEI Corporation's engineering notes on the technologies
industrial devices are built from: the communication protocols that carry
plant data, the convergence layer above them, and the signal-processing and
machine-learning work that runs at the edge. Each area below has its own hub
page; the depth lives in the child pages under it.

===== What is in this namespace? =====

  * **[[technology:industrial-ethernet:start|Industrial Ethernet]]** — deterministic Ethernet on the machine: PROFINET, EtherCAT, POWERLINK, EtherNet/IP and TSN. Cycle-time budgeting, stack integration, pre-compliance.
  * **[[technology:fieldbus:start|Fieldbus]]** — the installed base that has not gone away: PROFIBUS, Modbus, CAN and FOUNDATION Fieldbus, and the gateway work that brings them onto an Ethernet network.
  * **[[technology:industry40:start|Industry 4.0]]** — OT/IT convergence: OPC UA, DDS, MES/ERP integration and the cloud layer above the plant floor.
  * **[[technology:connectivity:start|Connectivity]]** — the wireless and messaging side: MQTT, BLE, Wi-Fi, LoRaWAN, Zigbee, 6LoWPAN and NFC.
  * **[[technology:dsp:start|Signal processing]]** — the maths behind condition monitoring: motor-current signature analysis, spectral estimation, wavelet and Park-vector methods.
  * **[[technology:ai-ml:start|AI / ML]]** — inference at the edge and the model families we have worked with.

===== Where does AEI's work sit? =====

Almost every engagement crosses two or three of these areas at once, which is
why they share one namespace. A machine network is a protocol problem, a
platform problem and often a signal-processing problem in the same device: the
protocol stack has to hold its cycle, the operating system underneath it has to
schedule that stack, and whatever the device measures has to be processed
before it is worth transmitting. The pages here describe how those layers fit
together, not just what each standard says.

Adjacent namespaces: **os:** for the operating-system and runtime layer
beneath these technologies, and **silicon:** for the parts they run on.

===== Related =====

  * [[start|Wiki home]]
  * [[https://aeicor.com/services/|AEI Corporation — services]]