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- """当前业务口径：安全监控判开停，重大设备只提供风量。"""
- SOURCE_SYSTEM_BY_ROLE = {'fan_state': 'safety', 'flow': 'equipment'}
- def source_policy():
- return {'version': 'main-fan-sources-2026-10-21',
- 'fan_state': 'safety', 'flow': 'equipment',
- 'equipment_state_used_for_switch': False}
- def select_history_points(points):
- return [point for point in points if SOURCE_SYSTEM_BY_ROLE.get(point.role) == point.system]
- def validate_history_sources(points):
- for point in points:
- if SOURCE_SYSTEM_BY_ROLE.get(point.role) != point.system:
- raise ValueError('开停以安全监控为准，重大设备只取风量；请调整测点计划：'
- + point.node_id + ' (' + point.system + '/' + point.role + ')')
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