# 2. Core Architecture and Innovations

**2.1 Three-Dimensional Ecosystem Architecture**

**2.1.1 Hardware Layer: All-Scenario Data Collection Network**

* **Smart Device Matrix**
  * *Core Device:* Modular Smart Ring
    * Basic Version: PPG heart rate / blood oxygen + body temperature sensors
    * Pro Version: Adds ECG (electrocardiogram) + blood pressure module
  * *Open SDK:* Compatible with third-party wearables such as Apple Watch and Fitbit; supports direct Bluetooth connection via mobile app
  * *Edge Nodes:* Partner merchants (pharmacies / gyms) deploy LoRa gateways to enhance offline data caching capability
* **Technical Specifications**
  * Battery Life: Basic version 120 hours / Pro version 72 hours (powered by nRF5340 low-power chip)
  * Data Collection Frequency:
    * Vital signs: real-time at 10Hz
    * Environmental data (temperature, humidity, PM2.5): 1Hz
  * Communication Protocols: BLE 5.3 + LoRa 1.0.3 (supports direct device connectivity within 2km)

**2.1.2 Data Layer: Privacy-Enhanced Data Middleware**

* **Three-Layer Encryption System**
  * *Device Layer:* Local biometric data hashed (SHA-256)
  * *Transmission Layer:* TLS 1.3 encryption + zero-knowledge proof (ZKP) for data anonymization
  * *Storage Layer:* IPFS distributed storage + on-chain indexing (data hashes stored on blockchain)
* **Smart Data Contracts**
  * *Dynamic Authorization:* Users can set data usage duration (7 days / 30 days / permanent) and scenarios (medical diagnosis / insurance underwriting / scientific research)
  * *Revenue Distribution:* 80% of data transaction revenue returned to users, 15% allocated to the ecosystem fund, 5% used for node rewards

**2.1.3 Application Layer: Diversified Health Service Ecosystem**

* **Core Features for C-End Users**
  * *Health Dashboard:* Real-time vital signs monitoring + AI health scoring (based on WHO standard model)
  * *Data Marketplace:* Anonymized data package auctions (supports stablecoin settlements in USDC/DAI)
  * *Health Mall:* Redeem GP points for health check-up packages / health food (in partnership with Meinian Health and Swisse)
* **B-End Solutions**
  * *Insurance Actuarial:* Provides real-time health data streams (with user authorization) to insurers to reduce adverse selection risk
  * *Clinical Research:* Offers pharmaceutical companies compliant subsets of disease-related data (e.g., exercise data from diabetic patients)
  * *Urban Health:* Provides governments with regional chronic disease trend analyses (data aggregation ≥ 1,000 people)

**2.2 Key Innovative Technologies**

**2.2.1 Dynamic Data Weighting Algorithm**\
Calculates data value based on a three-dimensional model: spatiotemporal, modality, and quality:

* *Spatiotemporal Dimension:* Data from rare scenarios (e.g., polar or high-altitude regions) weighted ×5
* *Modality Dimension:* ECG data valued at 3× compared to basic heart rate data
* *Quality Dimension:* Bonus of +20% GP for 72 hours of continuous effective data collection

**2.2.2 Cross-Chain Data Gateway**\
Supports bridging between Hyperledger Fabric and public blockchains (Ethereum/Solana), enabling compliant interactions between medical consortium chains and user-owned data sovereignty chains.
