cyberkukan

Urban data analysis × digital twin

Test a city's what-ifs with numbers you can trace.

cyberkukan turns urban questions about heat, air quality and crowds at events into scenarios you can compare, on data aligned with smart city standards. We start with Tokyo.

Request a demo See the services
Value (low → high) No data Illustration only, not observed values.
  • Scenario analysisChange the assumptions and compare the results in SimLab
  • StandardsNGSI-LD, Smart Data Models, DCAT, Japanese regional mesh
  • Our own foundationBuilt on BaseTwin Enterprise, our digital twin foundation

The problems we work on

Urban environment and urban activity on one map

The data is published, but in different formats, resolutions and update cycles. To support a decision it has to be aligned, traceable to its source and comparable under different assumptions.

  • Heat

    Summers are getting harder. Planning an outdoor event or a pedestrian route needs an estimate of heat exposure by place and time of day, before the day.

  • Air quality

    Monitoring station data is public, but combining it with other data means aligning location, time, units and the handling of gaps.

  • Events and crowds

    A large event loads the stations and streets around it. Compare the effect of a different start time or size before the event takes place.

  • Fragmented data

    City, national and transport operator data each follow their own specification. A shared vocabulary and the regional mesh make them usable together.

Services

Three ways to work with us

A scenario analysis tool you can use right away, an API of prepared urban data, and support for adoption and integration.

Early access

SimLab

Scenario analysis studio

Set the assumptions, run the scenario, and compare the difference from the baseline on a map and in a report. The first template, Event Impact, covers the additional people and the heat exposure around an event.

  • Project, scenario, run, comparison and report in one place
  • Every result shows its kind (observation, estimate, forecast, simulation), its uncertainty and its sources
  • AI only proposes changes to the assumptions. Numbers come from the simulation alone
  • Japanese and English. Aggregated on the Japanese regional mesh (JIS X 0410)

Request a demo

Coming soon

Smart City Data Stream

An API of urban events and data

A service that collects public data on Tokyo, aligns it with standard vocabularies and formats, and delivers it through an API. Each dataset carries its source, licence and update time.

  • Urban data on transport, air, weather, events and facilities
  • Access through NGSI-LD and OpenAPI
  • Source and licence shown for every dataset

Get notified at launch

Talk to us

Adoption and integration

Data preparation and digital twin projects

We help you bring your data in line with smart city standards and connect it to an existing city OS or data platform, from design to implementation.

  • Data model and catalog design
  • Connection to NGSI-LD platforms
  • BaseTwin Enterprise deployment, on premises or in the cloud

Start a conversation

How we treat data

Every number can show where it came from

A result supports a decision only when you know what it is based on and how it was produced. cyberkukan services are built on these principles.

  1. State the kind of value

    Observation, estimate, forecast and simulation are kept apart, each with its time and method.

  2. Never hide uncertainty

    Ranges are shown, and less certain values are marked as such.

  3. Missing is not zero

    Where there is no data, the result says "no data".

  4. Sources and licences attached

    Every result traces back to its datasets and their terms of use.

  5. No score without a breakdown

    When different risks are combined into one score, the breakdown is always shown.

Standards

Connected through smart city standards

No proprietary lock-in: the standards used by smart cities in Japan and abroad are design requirements. Our services speak the same language as the city OS and data platforms you already have.

Context information and data models

NGSI-LD ETSI GS CIM 009
The API for the current state of a city: entity queries, time series and notifications.
Smart Data Models
Shared data models maintained by FIWARE and partners. They align attribute names for environment, transport and weather.
OASC MIMs MIM1 · MIM2
The Minimal Interoperability Mechanisms of Open & Agile Smart Cities. We follow them for context information and data models.
JSON-LD
Vocabulary terms are identified by URL, so a value means the same thing in every system.

Catalog, licence and provenance

W3C DCAT 3
The dataset catalog: what is offered, when, and in which format.
ODRL 2.2 SPDX
Machine-readable terms of use that carry over to derived data.
W3C PROV-O
A provenance record from each result back to the dataset version and the processing step.
OpenAPI 3.1 OAuth 2.0 · OIDC
APIs described in an open format and protected by standard authentication and authorisation.

Geospatial and grids

JIS X 0410 地域メッシュ
Aggregation on the Japanese standard regional mesh, which lines up with official statistics and other analyses.
GeoJSON · OGC API Features · Tiles
Features and tiles in standard formats, usable directly from GIS tools and map libraries.
CityGML · 3D Tiles PLATEAU
3D city models from the PLATEAU project of MLIT, converted for display.
JGD2011 · WGS 84 ISO 8601
Both the Japanese geodetic datum and the world datum are supported. Times are stored with their offset.

Alignment with Japanese frameworks

Smart City Reference Architecture
Designed along the principles of the reference architecture published by the Cabinet Office: interoperability, data distribution and extensibility.
City OS and data platforms
The same interface as city OS products with NGSI APIs, so the two can be connected.
Public open data
Open data from the Tokyo Metropolitan Government and national bodies, handled under the terms of each dataset.
Act on the Protection of Personal Information
Designed to work without data that identifies a person. Nothing finer than the aggregation unit is delivered.

Our implementation follows the published specifications. It is not officially certified by the respective bodies. Connections between data spaces (IDSA, Gaia-X, Ouranos Ecosystem) and the OGC SensorThings API are on the roadmap.

Technology

BaseTwin Enterprise, the foundation

Our services run on BaseTwin Enterprise, which we develop ourselves. It is the commercial distribution of the open BaseTwin digital twin foundation, with the operations stack added: gateway, authentication, observability and backup. SimLab and Smart City Data Stream run on it, and it can be deployed in your environment.

  • Value semantics, scenarios, catalog and licences, provenance, grids and rasters behind one API
  • Runs on an NGSI-LD broker, next to an existing FIWARE-based platform
  • An operations setup that includes authentication, observability, backup and restore
  • On premises or in the cloud, with Docker Compose or Kubernetes

More about BaseTwin Enterprise

References

Smart city and urban environment references

We keep a growing list of public documents on policy, data sources, standards, heat and air quality, with a focus on Tokyo. These are the 10 most recently added.

  • Smart cityTokyo

    Tokyo Digital Twin Project

    The digital twin programme of the Tokyo Metropolitan Government, with a 3D viewer, the roadmap and the materials of its study group.

    Tokyo Metropolitan Government, Bureau of Digital Services · in Japanese

  • Smart cityTokyo

    Smart city projects of Tokyo (Smart Tokyo)

    The list of projects towards Smart Tokyo, including the pilot areas and data use programmes.

    Tokyo Metropolitan Government, Bureau of Digital Services · in Japanese

  • Smart cityTokyo

    Tokyo 2050 Strategy

    The basic plan of the metropolitan government: a vision for the 2050s and the policies up to 2035.

    Tokyo Metropolitan Government, Office of the Governor for Policy Planning · 2025 · in Japanese

  • DataTokyo

    Tokyo Open Data Catalog

    The catalog for finding and downloading open data of the metropolitan government and the municipalities of Tokyo.

    Tokyo Metropolitan Government · in Japanese

  • DataTokyo

    Tokyo Data Platform (TDPF)

    The portal of Tokyo's platform for combining public and private data.

    Tokyo Metropolitan Government, Bureau of Digital Services · in Japanese

  • HeatTokyo

    Heat island countermeasures

    The state of the heat island effect in Tokyo, the countermeasure guidelines and the heat mitigation programmes.

    Tokyo Metropolitan Government, Bureau of Environment · in Japanese

  • ClimateTokyo

    Tokyo Climate Change Adaptation Centre

    Information on how Tokyo's climate is changing, its impacts, and adaptation to heat and flooding.

    Tokyo Environmental Public Service Corporation · in Japanese

  • ClimateTokyo

    Adaptation measures (Tokyo Climate Change Adaptation Plan)

    The adaptation plan of Tokyo and its measures by field: natural disasters, health, agriculture and others.

    Tokyo Metropolitan Government, Bureau of Environment · in Japanese

  • ClimateTokyo

    Zero Emission Tokyo Strategy

    Tokyo's strategy for net zero CO2 emissions by 2050, with its later updates.

    Tokyo Metropolitan Government, Bureau of Environment · in Japanese

  • Air qualityTokyo

    Air pollution map of Tokyo (real-time values)

    Hourly values of air pollutants at the monitoring stations in Tokyo, on a map and in tables.

    Tokyo Metropolitan Government, Bureau of Environment · in Japanese

View all (40) Last updated · RSS

Company

About cyberkukan

cyberkukan (サイバー空間, "cyber space") is the urban data and digital twin brand of Hapeefy Inc. We treat the real city as a space inside the computer, so that a decision can be tried before it is made.

Operated by
Hapeefy株式会社 (Hapeefy Inc.)
Business
Urban data analysis, scenario simulation, and development and deployment of a digital twin foundation
Coverage
Japan, starting with Tokyo
Services and technology
SimLab · Smart City Data Stream · BaseTwin Enterprise

Contact

Ask for a demo, or tell us about your data and what you want to connect.