Merge commit 'd8e4449f1009bc03b167c0e5667413585b2b3e53' as 'core'

core/backend/app/models/carbon.py

@@ -0,0 +1,115 @@
+from sqlalchemy import Column, Integer, String, Float, DateTime, Text, Boolean, Date, JSON, ForeignKey
+from sqlalchemy.sql import func
+from app.core.database import Base
+
+
+class EmissionFactor(Base):
+    """碳排放因子"""
+    __tablename__ = "emission_factors"
+
+    id = Column(Integer, primary_key=True, autoincrement=True)
+    name = Column(String(100), nullable=False)
+    energy_type = Column(String(50), nullable=False)  # electricity, natural_gas, diesel, etc.
+    factor = Column(Float, nullable=False)  # kgCO2/单位
+    unit = Column(String(20), nullable=False)  # kWh, m³, L, etc.
+    region = Column(String(50), default="north_china")  # 区域电网
+    scope = Column(Integer, nullable=False)  # 1, 2, 3
+    source = Column(String(200))  # 数据来源
+    year = Column(Integer)
+    created_at = Column(DateTime(timezone=True), server_default=func.now())
+
+
+class CarbonTarget(Base):
+    """碳减排目标"""
+    __tablename__ = "carbon_targets"
+
+    id = Column(Integer, primary_key=True, autoincrement=True)
+    year = Column(Integer, nullable=False)
+    month = Column(Integer, nullable=True)  # NULL for annual target
+    target_emission_tons = Column(Float, nullable=False)
+    actual_emission_tons = Column(Float, default=0)
+    status = Column(String(20), default="on_track")  # on_track / warning / exceeded
+    created_at = Column(DateTime(timezone=True), server_default=func.now())
+
+
+class CarbonReduction(Base):
+    """碳减排活动"""
+    __tablename__ = "carbon_reductions"
+
+    id = Column(Integer, primary_key=True, autoincrement=True)
+    source_type = Column(String(50), nullable=False)  # pv_generation / heat_pump_cop / energy_saving
+    date = Column(Date, nullable=False, index=True)
+    reduction_tons = Column(Float, nullable=False)
+    equivalent_trees = Column(Float, default=0)
+    methodology = Column(String(200))
+    verified = Column(Boolean, default=False)
+    verification_date = Column(DateTime(timezone=True), nullable=True)
+    device_id = Column(Integer, ForeignKey("devices.id"), nullable=True)
+    created_at = Column(DateTime(timezone=True), server_default=func.now())
+
+
+class GreenCertificate(Base):
+    """绿证管理"""
+    __tablename__ = "green_certificates"
+
+    id = Column(Integer, primary_key=True, autoincrement=True)
+    certificate_type = Column(String(20), nullable=False)  # GEC / IREC / CCER
+    certificate_number = Column(String(100), unique=True, nullable=False)
+    issue_date = Column(Date, nullable=False)
+    expiry_date = Column(Date, nullable=True)
+    energy_mwh = Column(Float, nullable=False)
+    price_yuan = Column(Float, default=0)
+    status = Column(String(20), default="active")  # active / used / expired / traded
+    source_device_id = Column(Integer, ForeignKey("devices.id"), nullable=True)
+    notes = Column(Text)
+    created_at = Column(DateTime(timezone=True), server_default=func.now())
+
+
+class CarbonReport(Base):
+    """碳排放报告"""
+    __tablename__ = "carbon_reports"
+
+    id = Column(Integer, primary_key=True, autoincrement=True)
+    report_type = Column(String(20), nullable=False)  # monthly / quarterly / annual
+    period_start = Column(Date, nullable=False)
+    period_end = Column(Date, nullable=False)
+    generated_at = Column(DateTime(timezone=True), server_default=func.now())
+    scope1_tons = Column(Float, default=0)
+    scope2_tons = Column(Float, default=0)
+    scope3_tons = Column(Float, nullable=True)
+    total_tons = Column(Float, default=0)
+    reduction_tons = Column(Float, default=0)
+    net_tons = Column(Float, default=0)
+    report_data = Column(JSON, nullable=True)
+    file_path = Column(String(500), nullable=True)
+
+
+class CarbonBenchmark(Base):
+    """行业碳排放基准"""
+    __tablename__ = "carbon_benchmarks"
+
+    id = Column(Integer, primary_key=True, autoincrement=True)
+    industry = Column(String(100), nullable=False)
+    metric_name = Column(String(100), nullable=False)
+    benchmark_value = Column(Float, nullable=False)
+    unit = Column(String(50), nullable=False)
+    year = Column(Integer)
+    source = Column(String(200))
+    notes = Column(Text)
+
+
+class CarbonEmission(Base):
+    """碳排放记录"""
+    __tablename__ = "carbon_emissions"
+
+    id = Column(Integer, primary_key=True, autoincrement=True)
+    date = Column(DateTime(timezone=True), nullable=False, index=True)
+    scope = Column(Integer, nullable=False)  # 1, 2, 3
+    category = Column(String(50), nullable=False)  # electricity, gas, heat, etc.
+    emission = Column(Float, nullable=False)  # kgCO2e
+    reduction = Column(Float, default=0)  # 减排量 kgCO2e (光伏、热泵节能等)
+    energy_consumption = Column(Float)  # 对应能耗量
+    energy_unit = Column(String(20))
+    emission_factor_id = Column(Integer)
+    note = Column(Text)
+    created_at = Column(DateTime(timezone=True), server_default=func.now())