25 lines
1.1 KiB
Python
25 lines
1.1 KiB
Python
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from sqlalchemy import Column, Integer, String, Float, DateTime, JSON
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from sqlalchemy.sql import func
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from app.core.database import Base
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class MeterReading(Base):
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"""电表读数时序数据"""
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__tablename__ = "meter_readings"
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time = Column(DateTime(timezone=True), primary_key=True, nullable=False)
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meter_id = Column(Integer, primary_key=True, nullable=False)
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meter_name = Column(String(100))
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forward_active_energy = Column(Float) # 正向有功电能 kWh
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reverse_active_energy = Column(Float) # 反向有功电能 kWh
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active_power = Column(Float) # 有功功率 kW
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reactive_power = Column(Float) # 无功功率 kvar
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power_factor = Column(Float) # 功率因数
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voltage_a = Column(Float) # A相电压 V
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voltage_b = Column(Float) # B相电压 V
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voltage_c = Column(Float) # C相电压 V
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current_a = Column(Float) # A相电流 A
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current_b = Column(Float) # B相电流 A
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current_c = Column(Float) # C相电流 A
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raw_json = Column(JSON) # 原始数据包
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