87 lines
2.7 KiB
Python
87 lines
2.7 KiB
Python
"""Deterministic in-memory device used for hardware-free ReinLoop tests.
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The public methods intentionally mirror the MT2AM8 client and the small
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subset of the legacy PLC/motor clients used by ``tool/gui.py``. No sockets,
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serial ports, or Modbus objects are created here.
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"""
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import time
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class SimulatedDevice:
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"""A small pressure/flow/valve model for offline control-loop testing."""
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def __init__(self, pressure_range=400.0, flow_range=100.0,
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initial_pressure=0.0):
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self.pressure_range = float(pressure_range)
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self.flow_range = float(flow_range)
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self.pressure = float(initial_pressure)
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self.flow = min(self.flow_range, 50.0)
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self.position = 1000.0
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self.connected = False
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self.last_update = time.monotonic()
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self.command_log = []
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def connect(self):
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self.connected = True
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self.last_update = time.monotonic()
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print("模拟设备连接成功（未访问真实硬件）")
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return True
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def disconnect(self):
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self.connected = False
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print("模拟设备已断开")
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def _advance(self):
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now = time.monotonic()
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dt = max(0.0, min(now - self.last_update, 0.5))
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self.last_update = now
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if not self.connected or dt == 0:
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return
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# MT2AM8 的行程控制在当前程序中是反向阀位：较小行程表示更大
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# 进气。模型因此让压力向由行程决定的目标值缓慢靠近。
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opening = max(0.0, min(1.0, 1.0 - self.position / 1000.0))
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target_pressure = self.pressure_range * opening
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response = min(1.0, dt / 8.0)
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self.pressure += (target_pressure - self.pressure) * response
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def get_pressure(self, channel=0):
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self._advance()
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return max(0.0, self.pressure)
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def get_flow(self, channel=0):
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self._advance()
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opening = max(0.0, min(1.0, 1.0 - self.position / 1000.0))
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return self.flow * (0.25 + 0.75 * opening)
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def set_motor_position(self, position, channel=0):
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self._advance()
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position = float(position)
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if not 0.0 <= position <= 1000.0:
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return False
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self.position = position
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self.command_log.append({"position": position, "channel": channel,
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"time": time.monotonic()})
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return True
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# Compatibility methods used by the legacy GUI and standalone helpers.
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def get_current_p(self):
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return self.get_pressure(0)
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def read_current_position(self):
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return self.position
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def set_position(self, position):
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return self.set_motor_position(position)
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def init(self):
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return True
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def start_control(self):
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return True
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def stop_control(self):
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return True
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