Tap to record carbon
Card behaviour is the highest-frequency, most real low-carbon data source inside an organisation. We turn those acts into standard events and hand them to the carbon-benefit methodology engine, so every point is traceable.
The card collects and displays; methodology and the ledger sit in carbon-benefit
This boundary must stay sharp. Otherwise the same abatement is counted twice, and the customer cannot prove disclosure.
Behaviour collection, event standardisation, device evidence, C-end display and B-end scene boards.
- Device ingest and weigh / meter reads
- Event de-duplication and catch-up
- Card face and points display
Methodology definition and version, abatement accounting, points ledger, mall and redemption.
- Methodology engine
- Points and abatement ledger
- Redemption and write-off
Point conversion and abatement rules have one source: the carbon-benefit system. The card must not invent a second language.
One event states six things
The event model is the carbon-fusion contract. If a scene can produce these six fields, it can join the carbon account — no per-scene accounting logic.
Who produced the act (cardToken; no plaintext identity)
Precise timestamp for cycle aggregation and de-duplication
Organisation, building, point — for spatial roll-up and board drill-down
Which device collected it — a key evidence-chain link
Scene code that selects the methodology
Device / transaction / manual; weak evidence does not go into external disclosure
Three evidence grades
Weigh stations, smart meters, access control, chargers — usable in external disclosure.
Spend ledgers, signup and check-in inside the system — usable for internal incentives.
Manual registers and self-reports — campaign ops only; source must be labelled.
Seven scenes, each with its own carbon handle
The first carbon act worth doing is not the same in every scene. Picking the first handle well beats turning on ten scenes at once.
| Scene | Main carbon acts | Data source | Note |
|---|---|---|---|
| Campus | Clean-plate dining, dorm electricity saving, green commute | Weigh stations, smart meters, access | High student participation; strong education value |
| Government | Anti-waste canteen, official travel, office energy saving | Weigh stations, access, submetering | Directly tied to conservation-oriented office scoring |
| Hospital | Staff canteen clean-plate, commute, logistics energy saving | Weigh stations, access | Patient data does not enter personal carbon accounts |
| Elderly care | Assisted-meal clean-plate, walking and wellness activities | Weigh stations, activity check-in | Do not put a complex participation bar on elders |
| Park enterprises | Green commute, shuttle vs driving, electric forklift charging | Access, vehicle ID, chargers | Enterprise-level abatement stays separate from personal accounts |
| Community | Sorted-waste drop-off, community-canteen clean-plate, household electricity saving | Smart recycling stations, weigh stations, meters | Smart recycling stations are the best community data source |
| Associations | Event participation, green travel to meetings, online meetings vs travel | Check-in, travel register | Member-enterprise organisation-level abatement is not counted as personal |
Smart recycling stations and canteen weigh stations are the two devices worth connecting first: tap, weigh and sort are complete, evidence is strong, and participation motives are clear.
Users can read it; managers can report it
If carbon is only a number, users will not trust it and managers cannot brief it. Both ends must drill down to evidence.
C-end · My card
Carbon-point balance and cumulative abatement, shown next to the account area
Point sources by act type; filterable by time
Open any entry: device, weighing, methodology and calculation
B-end · Scene carbon board
- Participation and abatement by organisation, building and cohort
- Trends for canteen clean-plate rate, recycling drop-off volume and other scene metrics
- Export statistical language for scoring reports and external disclosure
- Anomaly detection: device offline, data jumps, duplicate reports
Do not over-claim carbon
Carbon-benefit programmes reach the public. Loose wording creates greenwash risk. The platform hard-constrains copy.
Wording notePoints and abatement are two different quantities: once abatement is converted to points it cannot be reversed, so double counting is avoided.
Want to see how one point is calculated?
A demo walks the full path from weighing to points posting, including the single-entry trace screen.