306 lines
12 KiB
Python
306 lines
12 KiB
Python
"""
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MI_headless.py
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无界面版 MI 运动想象范式通讯流程模拟脚本。
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复现 MI_main.py 的完整指令序列（train 0/1, rest, predict, saveData），
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但不依赖 psychopy 也不打开任何窗口/音频，用 time.sleep 替代帧循环等待。
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启动顺序:
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1. runDecoder.py
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2. datamock.py
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3. MI_headless.py
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"""
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import sys
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import os
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import json
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import time
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import threading
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import zmq
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import numpy as np
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import ast
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from datetime import datetime
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sys.path.append(os.path.dirname(os.path.dirname(os.path.abspath(__file__))))
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from PubLibrary.InifileHelper import IniRead
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personname = 'demo'
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session = '01'
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DATAMOCK_LABEL_ADDR = 'tcp://127.0.0.1:8101' # datamock 标签命令地址
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# ========== ZMQ 结果接收服务 ==========
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class ZmqResultServer(threading.Thread):
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def __init__(self, port=8088):
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threading.Thread.__init__(self)
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self.port = port
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self.running = True
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self.energy = 0
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self.paradigm = 0 # 0=个体校准, 1=康复训练, 2=等待模型训练
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self.ChoosenNum = -1
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self.context = zmq.Context()
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self.socket = self.context.socket(zmq.ROUTER)
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self.socket.bind(f"tcp://0.0.0.0:{self.port}")
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self.daemon = True
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self.trial_idx = 0
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def run(self):
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print(f"[Server] UpperHost_Server listening on {self.port}")
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while self.running:
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try:
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frames = self.socket.recv_multipart(zmq.NOBLOCK)
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if len(frames) < 3:
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continue
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message = json.loads(frames[2].decode('utf-8'))
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method = message.get('method')
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params = message.get('params')
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if method == 'energy':
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self.energy = params
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elif method == 'paradigm':
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self.paradigm = params
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print(f"[Server] paradigm -> {params}")
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elif method == 'result':
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self.ChoosenNum = params
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self.trial_idx += 1
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print(f"[Server] result={self.ChoosenNum} (trial {self.trial_idx})")
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except zmq.Again:
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time.sleep(0.005)
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except Exception as e:
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print(f"[Server] error: {e}")
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def stop(self):
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self.running = False
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self.socket.close()
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self.context.term()
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# ========== ZMQ 命令发送客户端 ==========
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class ZmqCmdClient:
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def __init__(self, host, port):
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self.host = host
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self.port = port
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self.context = zmq.Context()
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self.socket = self.context.socket(zmq.DEALER)
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# PUSH socket 用于向 datamock.py 发送标签命令
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self._label_sock = self.context.socket(zmq.PUSH)
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self._label_sock.connect(DATAMOCK_LABEL_ADDR)
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print(f"[Client] label PUSH connected to {DATAMOCK_LABEL_ADDR}")
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def connect(self):
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self.socket.connect(f"tcp://{self.host}:{self.port}")
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print(f"[Client] connected to {self.host}:{self.port}")
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def start_recv_thread(self, result_server):
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"""启动后台线程，持续接收 decoder 通过 8099 ROUTER 回发的消息，并更新 result_server 的状态"""
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self._result_server = result_server
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self._stop_recv = threading.Event()
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def _recv_loop():
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while not self._stop_recv.is_set():
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try:
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frames = self.socket.recv_multipart(zmq.NOBLOCK)
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# DEALER 收到的格式: [b'', json_bytes]
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data_bytes = frames[-1]
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message = json.loads(data_bytes.decode('utf-8'))
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method = message.get('method')
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params = message.get('params')
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ts = datetime.now().strftime('%H:%M:%S.%f')[:-3]
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print(f"[{ts}] [CmdClient] recv: {method}={params}")
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if method == 'paradigm':
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self._result_server.paradigm = params
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print(f"[{ts}] [CmdClient] paradigm updated -> {params}")
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elif method == 'result':
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self._result_server.ChoosenNum = params
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self._result_server.trial_idx += 1
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print(f"[{ts}] [CmdClient] result={params} (trial {self._result_server.trial_idx})")
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elif method == 'energy':
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self._result_server.energy = params
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except zmq.Again:
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time.sleep(0.005)
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except Exception as e:
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print(f"[CmdClient recv] error: {e}")
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time.sleep(0.01)
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self._recv_thread = threading.Thread(target=_recv_loop, daemon=True)
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self._recv_thread.start()
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print(f"[Client] 后台接收线程已启动（监听 decoder 8099 回发消息）")
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def stop_recv_thread(self):
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if hasattr(self, '_stop_recv'):
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self._stop_recv.set()
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def _send_label(self, label_value):
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"""向 datamock.py 发送标签命令"""
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try:
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self._label_sock.send_string(str(label_value), zmq.NOBLOCK)
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except Exception as e:
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print(f"[Client] label send error: {e}")
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def send_data(self, method, params):
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msg = {'method': method, 'params': params}
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try:
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self.socket.send_multipart([b'', json.dumps(msg).encode('utf-8')])
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ts = datetime.now().strftime('%H:%M:%S.%f')[:-3]
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print(f"[{ts}] send_data: {method}={params}")
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# 根据 train/predict 命令向 datamock 发送标签
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if method == 'train':
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if params == 0:
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self._send_label(1)
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print(f"[Label] train 0 -> datamock label=1")
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elif params == 1:
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self._send_label(2)
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print(f"[Label] train 1 -> datamock label=2")
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elif method == 'predict':
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self._send_label(99)
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print(f"[Label] predict -> datamock label=99")
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except Exception as e:
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print(f"[Client] send error: {e}")
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# ========== 主流程 ==========
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def run_headless():
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server = ZmqResultServer(port=8088)
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server.start()
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_dh = str(IniRead('system', 'Decoder_Host'))
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_dp = int(IniRead('system', 'Decoder_Port'))
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client = ZmqCmdClient(_dh, _dp)
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client.connect()
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client.start_recv_thread(server) # 启动后台接收线程，监听 decoder 8099 回发的 paradigm/result 消息
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time.sleep(1) # 等待连接建立
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client.send_data('decoderClass', 'mi')
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# MI_IntervalEpoch = [0.5, 4.5]，trial时长 = 4.5-0.5 = 4.0s
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_mi_iv = ast.literal_eval(IniRead('system', 'MI_IntervalEpoch'))
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_trial_sec = float(_mi_iv[1] - _mi_iv[0])
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_margin = 1.0
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train_time = max(5.0, _trial_sec + _margin) # 训练刺激时长（与 MI_main.py 保持一致）
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# MI epoch latency = interval_epoch[1] // 5 = (4.5*250)//5 = 225包 × 20ms = 4.5s
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# train_latency = 225包（MI中 train_latency == latency）
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# 在 train_time 后需再等 epoch_wait 秒，decoder 才能完成 epoch 采集
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epoch_wait = _mi_iv[1] / _mi_iv[1] * (_mi_iv[1] * 250 // 5) * 0.02 # = latency * 20ms
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# 更直接的计算：latency = interval_epoch[1] // 5 = int(4.5*250)//5 = 225，225*0.02 = 4.5s
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epoch_wait = (int(_mi_iv[1] * 250) // 5) * 0.02 # 4.5s
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# predict epoch wait（与 train 相同，MI中 latency == train_latency）
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predict_epoch_wait = epoch_wait # 4.5s
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test_time = 7.0 # 预测窗口时长（与 MI_main.py 保持一致）
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right_rehabilitation = float(IniRead('system', 'Right_rehabilitation'))
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fault_rehabilitation = float(IniRead('system', 'Fault_rehabilitation'))
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rest_time = float(IniRead('system', 'Rest_time'))
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num_blocks = int(IniRead('system', 'Num_blocks'))
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num_trials = int(IniRead('system', 'Num_trials'))
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trained = 0
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Num_Total = 0
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Num_Success = 0
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user_choice = []
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print("=" * 50)
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print("[Headless] 开始运行 MI 通讯流程（无界面）")
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print(f" MI_IntervalEpoch={_mi_iv}, trial_sec={_trial_sec:.2f}s")
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print(f" train_time={train_time:.2f}s, epoch_wait={epoch_wait:.2f}s")
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print(f" test_time={test_time:.2f}s, predict_epoch_wait={predict_epoch_wait:.2f}s")
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print(f" num_blocks={num_blocks}, num_trials={num_trials}")
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print("=" * 50)
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try:
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while True:
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# -------- 个体校准阶段 --------
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print("\n[Phase] 个体校准阶段 (paradigm=0)")
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client.send_data('rest', 0)
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time.sleep(1)
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while server.paradigm == 0:
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# 左侧 MI 刺激（train 0，label=1）
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print(f"\n[Train] 左侧 MI 刺激 (train 0) trained={trained}")
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client.send_data('rest', 0)
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time.sleep(0.5) # ding 提示后等待
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client.send_data('train', 0)
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time.sleep(train_time + epoch_wait) # 等待刺激时间 + epoch 完成时间
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trained += 1
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client.send_data('rest', 0)
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time.sleep(1.0) # 类间休息
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# 空闲态样本采集（train 1，label=2）
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print(f"\n[Train] 空闲态采集 (train 1) trained={trained}")
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client.send_data('train', 1)
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time.sleep(train_time + epoch_wait) # 等待刺激时间 + epoch 完成时间
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trained += 1
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client.send_data('rest', 0)
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time.sleep(1.0) # 类间休息
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# 个体校准阶段结束
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print("\n[Phase] 个体校准结束，等待模型训练 (paradigm=2) ...")
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trained = 0
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time.sleep(1)
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# 等待模型训练完成 (paradigm=2 -> paradigm=1)
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while server.paradigm == 2:
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print("[Phase] 等待模型训练完成 ...")
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time.sleep(0.5)
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# -------- 康复训练阶段 --------
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while server.paradigm == 1:
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print("\n[Phase] 康复训练阶段 (paradigm=1)")
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for block_idx in range(num_blocks):
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print(f"\n [Block {block_idx+1}/{num_blocks}]")
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time.sleep(10) # 每轮开始前等待
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for trial_idx in range(num_trials):
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print(f" [Trial {trial_idx+1}/{num_trials}]")
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time.sleep(0.5) # ding 提示
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server.ChoosenNum = -1
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# 开始预测
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# MI predict epoch latency = 225包 × 20ms = 4.5s，需额外等待 epoch 完成
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client.send_data('predict', 1)
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t_start = time.perf_counter()
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while time.perf_counter() - t_start < test_time + predict_epoch_wait:
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if server.ChoosenNum >= 0:
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Num_Total += 1
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user_choice.append(server.ChoosenNum)
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if server.ChoosenNum == 0:
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Num_Success += 1
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rest_time = right_rehabilitation
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elif server.ChoosenNum == 1:
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rest_time = fault_rehabilitation
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break
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time.sleep(0.02)
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trained += 1
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client.send_data('rest', 0)
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time.sleep(0.5)
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time.sleep(rest_time)
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server.ChoosenNum = -1
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# 训练结束
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print("\n[Phase] 康复训练结束")
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break # 退出康复训练循环
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# 统计结果
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overall_accuracy = Num_Success / Num_Total if Num_Total > 0 else 0
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print(f"\n[Result] Overall={overall_accuracy:.3f} ({Num_Success}/{Num_Total})")
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print(f"[Result] user_choice={user_choice}")
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break # 完成一个完整流程后退出
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except KeyboardInterrupt:
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print("\n[Headless] 用户中断")
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finally:
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client.send_data('predict', 2) # 关闭系统
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client.send_data('saveData', 0)
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server.stop()
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print("[Headless] 已发送关闭指令，退出。")
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if __name__ == '__main__':
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run_headless()
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