35d05d4701
新增功能： - src/desktop.py: PyQt6 桌面应用，支持 Droidcam 摄像头 - 实时视频预览 + 绿色扫描框叠加 - 空格键快速拍照识别 - 批量记录管理和 Excel 导出 - heartbeat.py: 服务心跳监控，自动重启 Streamlit - requirements-desktop.txt: 桌面版专用依赖 Web 版优化： - src/app.py: 自定义摄像头组件，扫描框叠加到视频流 Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
54 lines
1.2 KiB
Python
54 lines
1.2 KiB
Python
#!/usr/bin/env python3
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"""心跳程序 - 保持服务活跃"""
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import sys
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import time
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import subprocess
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import requests
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from datetime import datetime
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# 禁用输出缓冲
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sys.stdout.reconfigure(line_buffering=True)
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def log(msg):
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print(f"[{datetime.now():%Y-%m-%d %H:%M:%S}] {msg}", flush=True)
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def check_streamlit():
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"""检查 Streamlit 服务"""
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try:
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r = requests.get("http://localhost:8501", timeout=5)
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return r.status_code == 200
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except:
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return False
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def restart_streamlit():
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"""重启 Streamlit"""
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subprocess.run(["pkill", "-f", "streamlit run"], capture_output=True)
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time.sleep(2)
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subprocess.Popen(
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["streamlit", "run", "src/app.py", "--server.port", "8501", "--server.address", "0.0.0.0"],
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stdout=subprocess.DEVNULL,
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stderr=subprocess.DEVNULL,
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)
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print(f"[{datetime.now():%H:%M:%S}] Streamlit 已重启")
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def main():
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log("心跳程序启动")
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while True:
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if not check_streamlit():
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log("Streamlit 无响应，正在重启...")
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restart_streamlit()
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time.sleep(10)
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else:
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log("✓ 服务正常")
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time.sleep(60) # 每分钟检查一次
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if __name__ == "__main__":
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main()
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