320 lines
13 KiB
Python
320 lines
13 KiB
Python
import cv2
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import time
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from datetime import datetime
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import numpy as np
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import ch340
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import atexit
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import utils
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from utils import State, History
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class MAT:
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def __init__(self, videoSourceIndex=0, bounce_time=1, end_bounce_time=5):
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# 初始化logging
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utils.setup_logging()
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self.system_logger = utils.get_system_logger()
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self.control_logger = utils.get_control_logger()
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self.endpoint_logger = utils.get_endpoint_logger()
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self.volume_logger = utils.get_volume_logger()
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self.system_logger.info('正在初始化MAT系统...')
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self.videoSourceIndex = videoSourceIndex
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self.cap = cv2.VideoCapture(videoSourceIndex, cv2.CAP_DSHOW)
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self.ch340 = ch340.CH340()
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self.total_volume = 0
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self.state = State(bounce_time, end_bounce_time)
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atexit.register(self.ch340.stop)
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self.history = History(max(bounce_time, end_bounce_time))
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self.colored_volume = None
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self.colored_time = None
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self.colored_im = None
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def ch340_pull(self):
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self.control_logger.info("开始抽取12ml")
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self.ch340.max_speed()
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self.ch340.pull(vol=12)
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self.control_logger.info('完成抽取')
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def ch340_init(self):
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self.ch340.push(speed=1,t=1)
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self.ch340.pull(speed=1.2,vol=1)
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self.control_logger.info('电极位置已初始化')
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def ch340_push(self, speed=0.1):
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self.ch340.push_async(speed=speed, t=1)
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def process_left(self, now: float, value_only=False):
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st = self.ch340.start
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if not value_only:
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self.ch340.stop()
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assert abs(self.ch340._get_time()-1) < 1e3
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r = now - st
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ret = self.total_volume - (1-r) * self.speeds[self.state.mode.value]
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if value_only:
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return ret
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else:
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self.total_volume = ret
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def _pred(self):
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"""预测当前图像状态，返回'transport'、'middle'、'about'或'colored'"""
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suc, im = self.cap.read()
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if not suc:
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self.control_logger.error("无法从摄像头捕获帧")
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return None
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# 录制当前帧到视频文件
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if hasattr(self, 'capFile') and self.capFile.isOpened():
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self.capFile.write(im)
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ret, rate = self.predictor(im)
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if ret is None:
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return None
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now = time.time()
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val = self.process_left(now, value_only=True)
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# 确保val不为None
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if val is None:
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self.control_logger.warning("体积计算返回None，跳过本次记录")
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return ret
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# 更新滑动窗口历史记录 - 维护最近end_bounce_time内的状态
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self.history.add_record(now, ret,rate, val, im)
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if self.history.is_empty():
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self.control_logger.error("未预期的没有可用的历史记录")
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return ret
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# === 状态进入逻辑 ===
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if now - self._start_time<17:
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self._display_status(im, ret, rate, val)
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return ret
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# 1. middle: predictor返回middle立即进入slow状态
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if ret == "middle":
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if self.state.is_fast_mode():
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self.process_left(now)
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self.state.enter_middle_state(now)
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self.control_logger.info(f"检测到middle，立即进入slow模式，当前体积: {val:.2f} ml")
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# 2. about: 返回about，且处于middle则进入about状态
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elif ret == "about":
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if self.state.is_slow_mode():
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self.process_left(now)
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self.state.enter_about_state(now)
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self.control_logger.info(f"检测到about，进入about模式，当前体积: {val:.2f} ml")
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# 3. end：返回colored，置end_check标记开始检查
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elif ret == "colored":
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if not self.state.in_end_check:
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self.state.enter_end_check(now)
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if self.colored_volume is None:
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self.colored_volume = val
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self.colored_time = now
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self.colored_im = im.copy()
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self.endpoint_logger.info(f"检测到colored，开始end检查，记录体积: {val:.2f} ml")
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# === 状态检查逻辑 ===
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# middle检查: 进入middle的bounce_time后，在最近bounce_time内middle比例<70%返回fast状态
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if self.state.should_check_middle_exit(now):
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# 计算最近bounce_time内的middle比例
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recent_records = self.history.get_recent_records(self.state.bounce_time, now)
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if recent_records:
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trans_ratio = self.history.get_state_ratio("transport", recent_records)
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if trans_ratio > 0.3:
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self.process_left(now)
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self.state.exit_middle_check()
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# about状态随middle一起退出
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self.state.exit_about_with_middle()
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self.control_logger.info(f"middle比例{trans_ratio:.2%}<70%，退出middle检查，返回fast模式")
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# end检查: 进入end之后的end_bounce_time，如果end比例<80%，则重置；否则终止实验
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if self.state.should_check_end_result(now):
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colored_ratio = self.history.get_state_ratio("colored", self.history.get_recent_records(self.state.end_bounce_time, now))
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if colored_ratio < 0.8:
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# end比例<80%，从history中找到第二个end并继续check逻辑
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self.endpoint_logger.warning(f"colored比例{colored_ratio:.2%}<80%，寻找下一个colored点")
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# 寻找历史中倒数第二个colored状态
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colored_times = self.history.get_states_by_type("colored")
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if len(colored_times) >= 2:
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# 使用倒数第二个colored时间重新开始检查
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second_last_colored_time = colored_times[1]
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self.state.end_detected_time = second_last_colored_time
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# 更新colored记录为对应的体积
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record = self.history.find_record_by_timestamp(second_last_colored_time)
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if record:
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self.colored_volume = record.volume
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self.colored_time = record.timestamp
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self.colored_im = record.image.copy()
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self.endpoint_logger.info(f"重置到第二个colored点: {self.colored_volume:.2f} ml")
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else:
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# 没有足够的colored点，重置end检查
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self.state.reset_end_check()
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self.colored_volume = None
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self.colored_time = None
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self.endpoint_logger.info("没有足够的colored点，重置end检查")
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else: # end比例>=80%，确认终点，终止实验
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self.endpoint_logger.info(f"colored比例{colored_ratio:.2%}>=80%，确认滴定终点")
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self.endpoint_logger.info(f"最终体积: {self.colored_volume:.2f} ml")
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self.running = False
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self.ch340.stop()
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if self.colored_im is not None:
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cv2.imwrite(f"colored_{datetime.now().strftime('%Y%m%d_%H%M%S')}.jpg", self.colored_im)
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return "colored"
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# 显示状态信息
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self._display_status(im, ret, rate, val)
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return ret
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def _display_status(self, im, detection_result, rate, volume):
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"""显示状态信息到图像上"""
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mode_color = {
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State.Mode.FAST: (255, 255, 255),
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State.Mode.SLOW: (10, 215, 255),
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State.Mode.ABOUT: (228,116,167),
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# State.Mode.END: (0, 0, 255)
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}
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status_text = f"Stat: {detection_result}, rate: {round(rate,2)}, Vol: {volume:.2f} ml"
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status_text += self.state.get_status_text()
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cv2.putText(im, status_text, (10, 30), cv2.FONT_HERSHEY_SIMPLEX, 0.7,
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mode_color[self.state.mode], 2)
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cv2.imshow("Frame", im)
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cv2.waitKey(1)
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def predictor(self,im):
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hsv = cv2.cvtColor(im,cv2.COLOR_BGR2HSV)
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s = hsv[:,:,1]
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mask = s>30
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cv2.imshow('mask',im*mask[:,:,np.newaxis])
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tot = mask.shape[0]*mask.shape[1]
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val = np.sum(mask)
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rate = val/tot
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if self.history.base is not None:
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base = self.history.base
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thr = (base*5, base*10, base*30)
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if rate < thr[0]:
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return "transport",rate
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elif rate <thr[1]:
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return "middle",rate
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elif rate < thr[2]:
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return "about",rate
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else:
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return "colored",rate
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else:
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return "transport",rate
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def __del__(self):
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self.cap.release()
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if hasattr(self, 'capFile') and self.capFile.isOpened():
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self.capFile.release()
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cv2.destroyAllWindows()
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def run(self, quick_speed=0.2, slow_speed=0.05, end_speed=0.02, mid_time=0.5, end_time=1, cap_dir="Videos"):
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self.running = True
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self.start_time = time.time()
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self.speeds = (quick_speed, slow_speed, end_speed,end_speed)
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if cap_dir is not None:
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vid_name = f"{cap_dir}/{datetime.now().strftime('%Y%m%d_%H%M%S')}.mkv"
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else:
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vid_name = "Disabled"
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# 记录实验开始
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experiment_params = {
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"视频源索引 ": self.videoSourceIndex,
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"防抖时间 ": self.state.bounce_time,
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"快速模式速度": f"{quick_speed} ml/次",
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"慢速模式速度": f"{slow_speed} ml/次",
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"录制视频 ": vid_name
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}
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self.system_logger.info("实验参数:")
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for key, value in experiment_params.items():
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self.system_logger.info(f" {key}: {value}")
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fps = int(self.cap.get(cv2.CAP_PROP_FPS)) or 30
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width = int(self.cap.get(cv2.CAP_PROP_FRAME_WIDTH))
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height = int(self.cap.get(cv2.CAP_PROP_FRAME_HEIGHT))
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# 初始化视频录制器
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if vid_name != "Disabled":
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fourcc = cv2.VideoWriter.fourcc(*'x264') # 使用更兼容的编码器
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self.capFile = cv2.VideoWriter(vid_name, fourcc, fps, (width, height))
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if not self.capFile.isOpened():
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self.system_logger.error(f"无法打开视频录制器: {vid_name}")
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del self.capFile
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else:
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self.system_logger.info(f"视频录制已初始化")
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self.ch340_init()
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cnt = 0
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self._start_time = time.time()
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while self.running:
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if not self.ch340.running:
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if 12 * cnt - self.total_volume < 0.5:
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self.ch340_pull()
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cnt += 1
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time.sleep(0.01)
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# 简化的推送逻辑
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should_push = False
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if self.state.is_fast_mode():
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should_push = True
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elif self.state.is_slow_mode() and time.time() - self.ch340.start > mid_time:
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should_push = True
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elif self.state.is_about_mode() and time.time() - self.ch340.start > end_time:
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should_push = True
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if should_push:
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speed = self.speeds[self.state.mode.value]
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self.volume_logger.info(f"当前体积: {self.total_volume:.2f} ml, 加入速度: {speed:.2f} ml/次")
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self.ch340_push(speed)
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self.total_volume += speed
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if self._pred() is None:
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self.control_logger.error("预测失败，跳过当前帧")
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continue
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# 释放视频录制器
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if hasattr(self, 'capFile') and self.capFile.isOpened():
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self.capFile.release()
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self.system_logger.info(f"视频录制完成: {vid_name}")
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# 实验结束，记录结果
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experiment_results = {
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"总体积 ": f"{self.total_volume:.2f} ml",
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"终点体积": f"{self.colored_volume:.2f} ml",
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"理论体积": f"{self.colored_volume:.2f} ml",
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"实验时长": f"{time.time() - self.start_time:.2f} 秒"
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}
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self.system_logger.info("实验结果:")
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for key, value in experiment_results.items():
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self.system_logger.info(f" {key}: {value}")
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if __name__ == "__main__":
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# 创建MAT类的实例并运行
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mat = MAT(
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videoSourceIndex = 1,
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bounce_time=3,
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end_bounce_time=0.01
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)
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mat.run(
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slow_speed = 0.05,
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quick_speed = 0.15,
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end_time= 2,
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cap_dir=None
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)
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