class EdgeNode:
    def __init__(self, location, sensors):
        self.location = location
        self.sensors = sensors  # 环境传感器集合
        self.llm_model = LocalLLM("bio_medical_ontology")
        self.blockchain_client = BlockchainInterface()

    def process_data(self, raw_data):
        # 边缘计算预处理
        processed = self._normalize(raw_data)
        # LLM特征提取
        features = self.llm_model.extract_features(processed)
        # 区块链存证
        self.blockchain_client.submit_transaction(features)
        return features

class PrivacyFramework:
    def __init__(self, encryption_level):
        self.encryption = encryption_level
        self.differential_privacy = DifferentialPrivacyMechanism(ε=0.1)

    def protect_data(self, data_stream):
        # 差分隐私处理
        sanitized = self.differential_privacy.add_noise(data_stream)
        # 同态加密
        encrypted = self._homomorphic_encrypt(sanitized)
        return encrypted

def predict_risk(environment_data, genomic_data):
    # 多模态特征融合
    combined_features = concatenate([environment_data, genomic_data])

    # LLM进行因果推理
    risk_score = llm_model.infer_risk(
        combined_features,
        ontology="rare_disease_causal_graph"
    )

    # 动态阈值调整
    if risk_score > ADAPTIVE_THRESHOLD:
        return generate_alert(risk_score)
    else:
        return "Normal"

pragma solidity ^0.8.0;

contract DataSharing {
    struct MedicalRecord {
        bytes32 hash;
        uint256 accessCount;
        mapping(address => bool) authorizedUsers;
    }

    function grantAccess(address user, bytes32 recordHash) public {
        require(isAuthorized(msg.sender), "Only authorized entities");
        medicalRecords[recordHash].authorizedUsers[user] = true;
    }

    function queryRecord(bytes32 recordHash) public view returns (bool) {
        return medicalRecords[recordHash].authorizedUsers[msg.sender];
    }
}