📘 RFC‑052 — RSADI‑Coal: Industry Extension to RSADI Core

A Resonance Structural Awareness Dimensional Interface for Underground Coal Mines#

RefId: turn0browsertab1

Internet‑Draft                Triadic Frameworks
Intended status: Standards Track                January 2026
Expires: TBD

RFC‑052: RSADI‑Coal — Coal Industry Extension
draft-rsadi-coal-00

Abstract#

RSADI‑Coal defines the coal‑industry‑specific extension of the Resonance Structural Awareness Dimensional Interface (RSADI).
It introduces additional data fields, message semantics, and safety‑critical behaviors required for underground coal mining environments, including:

methane & CO sensing
roof & floor strata characterization
pillar load & roof convergence
equipment vibration signatures
collapse vectors & ignition risk
resonance‑aware evacuation routing

RSADI‑Coal extends RSADI‑Core without altering core invariants, ensuring compatibility across all RSADI‑aligned systems.

github.com

Status of This Memo#

This Internet‑Draft is a work in progress.
It may change, expand, or be refined through validator review.
It is not yet a standard.

github.com

Table of Contents#

Introduction
Terminology
Relationship to RSADI Core
Coal‑Specific Data Extensions
RSADI‑Coal Message Semantics
Evacuation & Clarity Gradient Semantics
Node Roles & Mesh Behavior in Coal Mines
Security Considerations
Safety Considerations
Privacy Considerations
IANA Considerations

github.com

1. Introduction#

Underground coal mines present unique resonance‑structural challenges:

confined geometry
methane accumulation
strata instability
equipment vibration
ignition risk
collapse propagation

RSADI‑Coal extends RSADI‑Core with industry‑specific fields and semantics enabling:

real‑time hazard detection
mesh‑network clarity routing
collapse‑vector prediction
resonance‑aware evacuation planning
multi‑agent structural awareness

RSADI‑Coal is transport‑agnostic and compatible with all RSADI‑Core bindings.

2. Terminology#

Methane Resonance Index (MRI)
Resonance‑weighted methane concentration.

Strata Coherence (SC)
Stability measure of roof/floor layers.

Pillar Load Vector (PLV)
Multi‑axis load distribution across support pillars.

Ignition Risk Gradient (IRG)
Resonance‑weighted ignition probability.

Collapse Vector (CV)
Directional prediction of structural failure.

Evacuation Clarity Gradient (ECG)
Clarity‑optimized routing metric for miners.

3. Relationship to RSADI Core#

RSADI‑Coal:

inherits all RSADI‑Core objects
adds coal‑specific fields
defines new message semantics
preserves RSADI invariants
extends dimensional signatures with mining‑specific axes

RSADI‑Core remains the canonical foundation.

4. Coal‑Specific Data Extensions#

4.1 RField Extensions#

RFieldCoal {
    methane_ppm: float,
    carbon_monoxide_ppm: float,
    strata_coherence: float,
    pillar_load_vector: vector3,
    roof_convergence_mm: float,
    vibration_signature: VibrationProfile,
    ignition_risk: float,
    collapse_vector: vector3
}

4.2 VibrationProfile#

VibrationProfile {
    frequency: float,
    amplitude: float,
    harmonic_signature: array<float>
}

4.3 CollapseVector#

Directional collapse prediction derived from:

strata coherence
pillar load
vibration harmonics
methane ignition risk

5. RSADI‑Coal Message Semantics#

5.1 Hazard Messages#

HAZ_METHANE_HIGH
HAZ_CO_HIGH
HAZ_STRATA_WEAK
HAZ_PILLAR_OVERLOAD
HAZ_VIBRATION_ANOMALY
HAZ_IGNITION_RISK
HAZ_COLLAPSE_VECTOR_DETECTED

5.2 Structural Messages#

STRATA_UPDATE
PILLAR_LOAD_UPDATE
ROOF_CONVERGENCE_UPDATE

5.3 Evacuation Messages#

EVACUATION_ROUTE_UPDATE
CLARITY_GRADIENT_SHIFT
DIMENSIONAL_SIGNATURE_MISMATCH

6. Evacuation & Clarity Gradient Semantics#

Evacuation routing uses the Evacuation Clarity Gradient (ECG):

[ ECG = f(C_\ell,; D_s,; S_g,; MRI,; IRG) ]

Where:

Cₗ = clarity
Dₛ = drift
Sg = stress
MRI = methane resonance index
IRG = ignition risk gradient

Routes are selected by maximizing ECG while minimizing collapse‑vector alignment.

7. Node Roles & Mesh Behavior in Coal Mines#

7.1 Node Types#

Sensor Nodes
Pillar Load Nodes
Strata Nodes
Evacuation Nodes
Validator Nodes

7.2 Mesh Behavior#

Coal‑mesh networks must:

propagate hazard messages with priority
maintain clarity fidelity
avoid drift amplification
preserve coherence invariants
support dimensional‑signature routing

8. Security Considerations#

RSADI‑Coal must prevent:

spoofed hazard messages
malicious collapse‑vector injection
drift‑based destabilization
clarity‑gradient manipulation
unauthorized node impersonation

9. Safety Considerations#

Safety is the primary purpose of RSADI‑Coal.

Implementations must:

ensure deterministic hazard propagation
maintain clarity under load
avoid false positives/negatives
support offline fallback modes
preserve evacuation‑route integrity

10. Privacy Considerations#

RSADI‑Coal may encode:

miner location
equipment telemetry
environmental logs

Deployments must follow strict privacy and retention policies.

11. IANA Considerations#

Future versions may define:

RSADI‑Coal media types
RSADI‑Coal registry entries
RSADI‑Coal protocol identifiers