20260913-2310-mate-unified-and-ac-controller Redraw the matrix for a unified Mate and an autonomous AC controller

status: completed
priority: P1
owner: matrix-arch/session-20260913-2310
createdAt: 2026-09-13 23:10

Description

The user stated two architecture changes while reviewing the product matrix diagram:

Mate is one product, hardware and software together. It is no longer drawn or described as a hardware Hub plus software running on it.
The AC side gains its own controller that makes its own decisions. Mate reaches it over RS-485 or CAN. Core no longer drives AC contactor coils.

Redraw both diagrams accordingly and redraw the off-boat Control chart with the same generator so the package uses one drawing method throughout.

These two statements contradict controlled content that this task does not change, because a product-plan revision needs its own proposal:

PRODUCT-PLAN.md §P3 is written as two halves, "硬件 · Hub" and "软件 · …".
§P1 Core custom requirements 8 and 9 (contactor coil driving; the flagged pulse-output mode with a firmware-enforced on-time limit) exist only to drive AC latching relays from Core.
§P4 開關執行, 支路开关基线, 脉冲时序 and 降级行为 are all written around "Core channel drives the latching relay directly", including priced Schneider iTL and Finder candidates.
§P4 carries the non-negotiable boundary "YBO 无任何硬件承载交流载流或交流电位", which needs restating if the AC controller is a YBO product.
§P7 Studio owns the pulse channel type and the 12 s minimum re-actuation interval.
product/ac/ and product/mate/ carry the same statements at Level 1 and Level 2.

The product index therefore carries a visible warning block naming the two divergences and stating that the product plan governs until the write-back happens.

Open items for the user, none of which this task decides: whether the AC controller is a YBO product, a partner-built product or a third-party selection; whether the no-AC-potential boundary still holds; and whether Core's pulse-output requirement is retired.

Acceptance: both diagrams show the stated architecture; no Mermaid chart remains in the product matrix; the divergence from PRODUCT-PLAN.md is stated on the page rather than silently introduced; bun run docs:build and git diff --check pass; zoom verified in a browser.

ActiveForm

Redrawing the matrix for a unified Mate and an autonomous AC controller.

Dependencies

blocked by: (none)
blocks: write-back of the two changes into PRODUCT-PLAN.md, product/ac/ and product/mate/, which needs the three open items answered first.

Notes

Full tier: diagram definitions, product index and a recorded divergence.
No product-plan file was edited.
complete: Both diagrams redrawn; divergence from PRODUCT-PLAN recorded on the page and as blocked follow-up.