Design exploration · Aastroem
One product, two tiers — Halden Observe (read-only monitoring, shipping today) and Halden Control (the command path, a separate engagement). Each direction below is a committed visual treatment aimed at a technical buyer: plant operators and engineers evaluating remote monitoring for vanadium redox flow battery sites.
Copy is drawn from the real product docs and kept confidentiality-safe — no customer names. The palettes lean on something the subject actually gives us: vanadium's four oxidation states are four distinct colors, the literal chemistry of the battery being watched.
The operator's own world: a dark instrument panel, live signal, monospace readouts. Observe is a running trace; Control is a hatched, locked-off surface you can see but not touch. This reads as “software an operator already trusts,” not a brochure.
Cool near-black with blue bias. Teal = live/observe, amber = gated/control — semantic, not decorative.
Monospace is the control-room vernacular — used for every number and slug.
Full-bleed status bar, live oscilloscope hero with a 4-cell readout, then the two tiers as instrument panels. Vanadium states appear as a data-series legend.
Halden Observe · read-only monitoring
Read-only remote monitoring for vanadium redox flow battery sites. An on-site probe reads battery and PLC telemetry and streams it out to the cloud — operators watch it in Grafana.
The only thing a site gives up is an outbound WAN connection. No inbound ports, no standing write path.
Read-only telemetry, edge to dashboard. A data diode enforced at the probe — the bridge is egress-only with a raw/# filter and no command channel.
The command path — setpoints, mode changes, dispatch — applied to the BMS/PCS. It ships as a disabled stub by design.
A blueprint of the thing itself. The hero is a real flow-battery schematic where the data-diode is drawn as a one-way path off the stack — you can literally see that data only flows out. Light, precise, drafting-table calm. The vanadium four-state palette becomes an honest legend, not an accent grab.
Blueprint grid on cool paper; ink-blue linework. Amber (V⁵⁺) reserved to mark the Control / write path.
Mono used the way a draughtsperson uses stencilled callouts — measured, technical.
Drawing-sheet stamp, an SVG stack-and-tanks schematic as hero, tiers as spec cards with a left rule, and a four-swatch vanadium state legend.
Read-only remote monitoring for grid-scale vanadium redox flow battery sites. Telemetry leaves the stack on a one-way path — there is no drawing on this sheet for a way back in.
FIG 1 · SITE → CLOUD DATA PATHread-only · egress only
probe → local EMQX → mTLS bridge → cloud broker → Telegraf → VictoriaMetrics → Grafana. Dashboards and alerts, including probe-staleness detection.
The separately-contracted write path — remote setpoints and dispatch to the BMS/PCS. Not a sheet on this drawing; a distinct product with its own commitments.
For the buyer whose real question is “can I trust this on critical infrastructure.” Calm, confident, typographic. The structural device is the actual 8-gate security model — a numbered ladder, because here the sequence genuinely carries meaning. Serif display for gravity; a single gold accent reserved for the gates themselves.
Warm near-black (red bias) to separate it from Direction 01's cool black. Gold spent only on gates.
Serif signals institutional confidence — the only direction that isn't mono-led.
Editorial hero with an italic gold emphasis, the gate ladder as the page's spine, then the two tiers as calm cards. Generous whitespace throughout.
Halden · monitoring for critical energy assets
Halden watches vanadium redox flow battery sites without ever holding a way in. The read-only guarantee isn't a setting — it's the shape of the system, backed by an eight-gate security model built for grid-scale assets.
Read-only remote monitoring. The probe reads and streams; nothing standing lets the cloud write back. Its single site requirement is an outbound WAN connection.
The command path — setpoints, mode changes, dispatch — is a sibling product with its own contract, its own threat model, and its own regulatory gate. It is never a toggle on Observe.