01 · BUILDING AUTOMATION
NODVIA & automation
BACnet, Modbus, KNX, Climatix, commissioning, HMI and the future of semantic buildings.
PICALLW KNOWLEDGE
From a problem to usable knowledge.
PICALLW Knowledge is more than a list of posts. Content is organised into practical learning paths: building automation, human measurement and complex-system research.
START HERE
Three PICALLW knowledge paths.
Start with the field that matters to you, then move from fundamentals to deep technical guides, research articles and working tools.
02 · GDV / HRV / ECG
Measurement & research
The physical basis of GDV/EPI, capture quality, morphology, repeatability, personal baselines and combined HRV/ECG analysis.
03 · COMPLEX SYSTEMS
Technology & Research
Time series, the World State Vector, correlations, lag analysis, Mutual Information, FDR, discovery and independent validation.
PICALLW APPROACH
Useful knowledge also shows its limits.
Technical content separates standards, actual implementation and field engineering experience. Research content separates measurement, statistical association and interpretation.
01PracticalA guide should solve a real problem, not merely describe a technology.
02VerifiableWhere useful, we link standards, technical documentation and research sources.
03TransparentExperimental features, limitations and uncertainty are stated clearly.
04LivingCore field guides evolve as the tools and engineering experience evolve.
56+ TECHNICAL & RESEARCH ARTICLES
Continue into the full PICALLW blog.
Browse by category, use the latest-articles list, or search for a specific technical problem.