994 lines
33 KiB
Python
994 lines
33 KiB
Python
#!/usr/bin/env python3
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# -*- coding: utf-8 -*-
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"""
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平衡体态检测系统 - 后端服务
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基于Flask的本地API服务
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"""
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import os
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import sys
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import json
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import time
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import threading
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from datetime import datetime
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from flask import Flask, request, jsonify, send_file
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from flask_cors import CORS
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import sqlite3
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import logging
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from pathlib import Path
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from flask_socketio import SocketIO, emit
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import cv2
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import configparser
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import os
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# 添加当前目录到Python路径
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sys.path.append(os.path.dirname(os.path.abspath(__file__)))
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# 导入自定义模块
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from database import DatabaseManager
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from device_manager import DeviceManager, VideoStreamManager
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from detection_engine import DetectionEngine, detection_bp
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from data_processor import DataProcessor
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from utils import config as app_config
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# 配置日志
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logging.basicConfig(
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level=logging.INFO,
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format='%(asctime)s - %(name)s - %(levelname)s - %(message)s',
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handlers=[
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logging.FileHandler('logs/backend.log', encoding='utf-8'),
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logging.StreamHandler()
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]
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)
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logger = logging.getLogger(__name__)
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# 创建Flask应用
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app = Flask(__name__)
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app.config['SECRET_KEY'] = 'body-balance-detection-system-2024'
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socketio = SocketIO(app, cors_allowed_origins='*', async_mode='threading')
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# 启用CORS支持
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CORS(app, origins='*', supports_credentials=True, allow_headers=['Content-Type', 'Authorization'], methods=['GET', 'POST', 'PUT', 'DELETE', 'OPTIONS'])
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# 注册Blueprint
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app.register_blueprint(detection_bp)
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# 读取RTSP配置
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config = configparser.ConfigParser()
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config.read(os.path.join(os.path.dirname(__file__), 'config.ini'), encoding='utf-8')
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rtsp_url = config.get('CAMERA', 'rtsp_url', fallback=None)
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# 全局变量
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db_manager = None
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device_manager = None
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detection_engine = None
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data_processor = None
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current_detection = None
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detection_thread = None
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video_stream_manager = None
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def init_app():
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"""初始化应用"""
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global db_manager, device_manager, detection_engine, data_processor, video_stream_manager
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try:
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# 创建必要的目录
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os.makedirs('logs', exist_ok=True)
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os.makedirs('data', exist_ok=True)
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os.makedirs('exports', exist_ok=True)
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os.makedirs('videos', exist_ok=True)
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# 从配置文件读取数据库路径
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db_path = app_config.get('DATABASE', 'path', 'backend/data/body_balance.db')
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# 确保数据库目录存在
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db_dir = os.path.dirname(db_path)
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os.makedirs(db_dir, exist_ok=True)
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# 初始化数据库
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db_manager = DatabaseManager(db_path)
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db_manager.init_database()
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# 初始化设备管理器
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device_manager = DeviceManager()
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# 初始化检测引擎
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detection_engine = DetectionEngine()
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# 初始化数据处理器
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data_processor = DataProcessor()
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# 初始化视频流管理器
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video_stream_manager = VideoStreamManager(socketio)
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logger.info('应用初始化完成')
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except Exception as e:
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logger.error(f'应用初始化失败: {e}')
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raise
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# ==================== 基础API ====================
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@app.route('/health', methods=['GET'])
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def health_check():
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"""健康检查"""
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return jsonify({
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'status': 'ok',
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'timestamp': datetime.now().isoformat(),
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'version': '1.0.0'
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})
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@app.route('/api/health', methods=['GET'])
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def api_health_check():
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"""API健康检查"""
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return jsonify({
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'status': 'ok',
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'timestamp': datetime.now().isoformat(),
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'version': '1.0.0'
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})
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# ==================== 认证API ====================
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@app.route('/api/auth/login', methods=['POST'])
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def login():
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"""用户登录"""
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try:
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data = request.get_json()
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username = data.get('username')
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password = data.get('password')
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remember = data.get('remember', False)
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if not username or not password:
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return jsonify({
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'success': False,
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'message': '用户名或密码不能为空'
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}), 400
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# 使用数据库验证用户
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user = db_manager.authenticate_user(username, password)
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if user:
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# 检查用户是否已激活
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if not user['is_active']:
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return jsonify({
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'success': False,
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'message': '账户未激活，请联系管理员审核'
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}), 403
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# 构建用户数据
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user_data = {
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'id': user['id'],
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'username': user['username'],
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'name': user['name'],
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'role': 'admin' if user['user_type'] == 'admin' else 'user',
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'user_type': user['user_type'],
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'avatar': ''
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}
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# 生成token（实际项目中应使用JWT等安全token）
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token = f"token_{username}_{int(time.time())}"
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logger.info(f'用户 {username} 登录成功')
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return jsonify({
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'success': True,
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'data': {
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'token': token,
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'user': user_data
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},
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'message': '登录成功'
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})
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else:
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logger.warning(f'用户 {username} 登录失败：用户名或密码错误')
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return jsonify({
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'success': False,
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'message': '用户名或密码错误'
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}), 401
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except Exception as e:
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logger.error(f'登录失败: {e}')
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return jsonify({'success': False, 'message': '登录失败'}), 500
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@app.route('/api/auth/register', methods=['POST'])
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def register():
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"""用户注册"""
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try:
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data = request.get_json()
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username = data.get('username')
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password = data.get('password')
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name = data.get('name') or data.get('email', '')
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phone = data.get('phone')
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if not username or not password:
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return jsonify({
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'success': False,
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'message': '用户名和密码不能为空'
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}), 400
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if len(password) < 6:
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return jsonify({
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'success': False,
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'message': '密码长度不能少于6位'
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}), 400
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# 构建用户数据字典
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user_data = {
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'username': username,
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'password': password,
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'name': name,
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'phone': phone
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}
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# 使用数据库注册用户
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result = db_manager.register_user(user_data)
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if result['success']:
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logger.info(f'用户 {username} 注册成功，等待管理员审核')
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return jsonify({
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'success': True,
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'message': '注册成功，请等待管理员审核后登录'
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})
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else:
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return jsonify({
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'success': False,
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'message': result['message']
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}), 400
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except Exception as e:
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logger.error(f'注册失败: {e}')
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return jsonify({'success': False, 'message': '注册失败'}), 500
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@app.route('/api/auth/logout', methods=['POST'])
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def logout():
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"""用户退出"""
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try:
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return jsonify({
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'success': True,
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'message': '退出成功'
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})
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except Exception as e:
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logger.error(f'退出失败: {e}')
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return jsonify({'success': False, 'message': '退出失败'}), 500
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@app.route('/api/auth/verify', methods=['GET'])
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def verify_token():
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"""验证token"""
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try:
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# 简单的token验证（实际项目中应验证JWT等）
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auth_header = request.headers.get('Authorization')
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if auth_header and auth_header.startswith('Bearer '):
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token = auth_header.split(' ')[1]
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# 这里可以添加真实的token验证逻辑
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return jsonify({
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'success': True,
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'data': {'valid': True}
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})
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else:
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return jsonify({
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'success': True,
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'data': {'valid': True} # 暂时总是返回有效
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})
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except Exception as e:
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logger.error(f'验证token失败: {e}')
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return jsonify({'success': False, 'message': '验证失败'}), 500
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@app.route('/api/auth/forgot-password', methods=['POST'])
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def forgot_password():
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"""忘记密码 - 根据用户名和手机号找回密码"""
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try:
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data = request.get_json()
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username = data.get('username')
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phone = data.get('phone')
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if not username:
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return jsonify({
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'success': False,
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'error': '请输入用户名'
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}), 400
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if not phone:
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return jsonify({
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'success': False,
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'error': '请输入手机号码'
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}), 400
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# 验证手机号格式
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import re
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phone_pattern = r'^1[3-9]\d{9}$'
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if not re.match(phone_pattern, phone):
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return jsonify({
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'success': False,
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'error': '手机号格式不正确'
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}), 400
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# 查询用户信息
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conn = db_manager.get_connection()
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cursor = conn.cursor()
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cursor.execute('''
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SELECT username, password, phone FROM users
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WHERE username = ? AND phone = ?
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''', (username, phone))
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user = cursor.fetchone()
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if user:
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# 用户存在且手机号匹配，返回密码
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# 注意：这里返回的是加密后的密码，实际应用中需要解密或重置
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# 为了演示，我们假设有一个简单的解密方法
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encrypted_password = user['password']
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# 这里简化处理，实际应该有更安全的密码找回机制
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# 由于使用MD5加密，无法直接解密，所以返回提示信息
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return jsonify({
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'success': True,
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'password': '1234567', # 演示用固定密码
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'message': '密码找回成功'
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})
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else:
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# 检查用户是否存在
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cursor.execute('SELECT username FROM users WHERE username = ?', (username,))
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user_exists = cursor.fetchone()
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if not user_exists:
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return jsonify({
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'success': False,
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'error': '用户不存在'
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}), 400
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else:
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return jsonify({
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'success': False,
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'error': '手机号不匹配'
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}), 400
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except Exception as e:
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logger.error(f'忘记密码处理失败: {e}')
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return jsonify({'success': False, 'error': '处理失败'}), 500
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# ==================== 用户管理API ====================
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@app.route('/api/users', methods=['GET'])
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def get_users():
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"""获取用户列表（管理员功能）"""
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try:
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# 这里应该验证管理员权限
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page = int(request.args.get('page', 1))
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size = int(request.args.get('size', 10))
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status = request.args.get('status') # active, inactive, all
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users = db_manager.get_users(page, size, status)
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total = db_manager.get_user_count(status)
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return jsonify({
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'success': True,
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'data': {
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'users': users,
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'total': total,
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'page': page,
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'size': size
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}
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})
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except Exception as e:
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logger.error(f'获取用户列表失败: {e}')
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return jsonify({'success': False, 'message': '获取用户列表失败'}), 500
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@app.route('/api/users/<int:user_id>/approve', methods=['POST'])
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def approve_user(user_id):
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"""审核用户（管理员功能）"""
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try:
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# 这里应该验证管理员权限
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data = request.get_json()
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approve = data.get('approve', True)
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result = db_manager.approve_user(user_id, approve)
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if result['success']:
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action = '审核通过' if approve else '审核拒绝'
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logger.info(f'用户 {user_id} {action}')
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return jsonify({
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'success': True,
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'message': f'用户{action}成功'
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})
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else:
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return jsonify({
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'success': False,
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'message': result['message']
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}), 400
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except Exception as e:
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logger.error(f'审核用户失败: {e}')
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return jsonify({'success': False, 'message': '审核用户失败'}), 500
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@app.route('/api/users/<int:user_id>', methods=['DELETE'])
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def delete_user(user_id):
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"""删除用户（管理员功能）"""
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try:
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# 这里应该验证管理员权限
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result = db_manager.delete_user(user_id)
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if result['success']:
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logger.info(f'用户 {user_id} 删除成功')
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return jsonify({
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'success': True,
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'message': '用户删除成功'
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})
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else:
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return jsonify({
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'success': False,
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'message': result['message']
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}), 400
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except Exception as e:
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logger.error(f'删除用户失败: {e}')
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return jsonify({'success': False, 'message': '删除用户失败'}), 500
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@app.route('/api/auth/reset-password', methods=['POST'])
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def reset_password():
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"""重置密码"""
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try:
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data = request.get_json()
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token = data.get('token')
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password = data.get('password')
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if token and password:
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return jsonify({
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'success': True,
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'message': '密码重置成功'
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})
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else:
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return jsonify({
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'success': False,
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'message': '参数不完整'
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}), 400
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except Exception as e:
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logger.error(f'重置密码失败: {e}')
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return jsonify({'success': False, 'message': '重置失败'}), 500
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@app.route('/api/system/info', methods=['GET'])
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def get_system_info():
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"""获取系统信息"""
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try:
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info = {
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'version': '1.0.0',
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'start_time': datetime.now().isoformat(),
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'database_status': 'connected' if db_manager else 'disconnected',
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'device_count': len(device_manager.get_connected_devices()) if device_manager else 0
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}
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return jsonify({'success': True, 'data': info})
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except Exception as e:
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logger.error(f'获取系统信息失败: {e}')
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return jsonify({'success': False, 'error': str(e)}), 500
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# ==================== 设备管理API ====================
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@app.route('/api/devices/status', methods=['GET'])
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def get_device_status():
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"""获取设备状态"""
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try:
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if not device_manager:
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return jsonify({'camera': False, 'imu': False, 'pressure': False})
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status = device_manager.get_device_status()
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return jsonify(status)
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except Exception as e:
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logger.error(f'获取设备状态失败: {e}')
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return jsonify({'camera': False, 'imu': False, 'pressure': False})
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@app.route('/api/devices/refresh', methods=['POST'])
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def refresh_devices():
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"""刷新设备连接"""
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try:
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if device_manager:
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device_manager.refresh_devices()
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return jsonify({'success': True, 'message': '设备已刷新'})
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except Exception as e:
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logger.error(f'刷新设备失败: {e}')
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return jsonify({'success': False, 'error': str(e)}), 500
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@app.route('/api/devices/calibrate', methods=['POST'])
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def calibrate_devices():
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"""校准设备"""
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try:
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if device_manager:
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result = device_manager.calibrate_devices()
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return jsonify({'success': True, 'data': result})
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return jsonify({'success': False, 'error': '设备管理器未初始化'}), 500
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except Exception as e:
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logger.error(f'设备校准失败: {e}')
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return jsonify({'success': False, 'error': str(e)}), 500
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# ==================== 患者管理API ====================
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@app.route('/api/patients', methods=['GET'])
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def get_patients():
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"""获取患者列表"""
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try:
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page = int(request.args.get('page', 1))
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size = int(request.args.get('size', 10))
|
||
keyword = request.args.get('keyword', '')
|
||
|
||
patients = db_manager.get_patients(page, size, keyword)
|
||
total = db_manager.get_patients_count(keyword)
|
||
|
||
return jsonify({
|
||
'success': True,
|
||
'data': {
|
||
'patients': patients,
|
||
'total': total,
|
||
'page': page,
|
||
'size': size
|
||
}
|
||
})
|
||
except Exception as e:
|
||
logger.error(f'获取患者列表失败: {e}')
|
||
return jsonify({'success': False, 'error': str(e)}), 500
|
||
|
||
@app.route('/api/patients', methods=['POST'])
|
||
def create_patient():
|
||
"""创建患者"""
|
||
try:
|
||
data = request.get_json()
|
||
patient_id = db_manager.create_patient(data)
|
||
return jsonify({
|
||
'success': True,
|
||
'data': {'patient_id': patient_id},
|
||
'message': '患者创建成功'
|
||
})
|
||
except Exception as e:
|
||
logger.error(f'创建患者失败: {e}')
|
||
return jsonify({'success': False, 'error': str(e)}), 500
|
||
|
||
@app.route('/api/patients/<patient_id>', methods=['PUT'])
|
||
def update_patient(patient_id):
|
||
"""更新患者信息"""
|
||
try:
|
||
data = request.get_json()
|
||
db_manager.update_patient(patient_id, data)
|
||
return jsonify({'success': True, 'message': '患者信息更新成功'})
|
||
except Exception as e:
|
||
logger.error(f'更新患者信息失败: {e}')
|
||
return jsonify({'success': False, 'error': str(e)}), 500
|
||
|
||
@app.route('/api/patients/<patient_id>', methods=['GET'])
|
||
def get_patient(patient_id):
|
||
"""获取单个患者信息"""
|
||
try:
|
||
patient = db_manager.get_patient(patient_id)
|
||
if patient:
|
||
return jsonify({'success': True, 'data': patient})
|
||
else:
|
||
return jsonify({'success': False, 'error': '患者不存在'}), 404
|
||
except Exception as e:
|
||
logger.error(f'获取患者信息失败: {e}')
|
||
return jsonify({'success': False, 'error': str(e)}), 500
|
||
|
||
@app.route('/api/patients/<patient_id>', methods=['DELETE'])
|
||
def delete_patient(patient_id):
|
||
"""删除患者"""
|
||
try:
|
||
db_manager.delete_patient(patient_id)
|
||
return jsonify({'success': True, 'message': '患者删除成功'})
|
||
except Exception as e:
|
||
logger.error(f'删除患者失败: {e}')
|
||
return jsonify({'success': False, 'error': str(e)}), 500
|
||
|
||
# ==================== 检测管理API ====================
|
||
|
||
@app.route('/api/detection/start', methods=['POST'])
|
||
def start_detection():
|
||
"""开始检测"""
|
||
global current_detection, detection_thread
|
||
|
||
try:
|
||
data = request.get_json()
|
||
patient_id = data.get('patientId')
|
||
settings_str = data.get('settings', '{}')
|
||
|
||
if not patient_id:
|
||
return jsonify({'success': False, 'error': '缺少患者ID'}), 400
|
||
|
||
# 检查是否已有检测在进行
|
||
if current_detection and current_detection.get('status') == 'running':
|
||
return jsonify({'success': False, 'error': '已有检测在进行中'}), 400
|
||
|
||
# 解析settings参数
|
||
try:
|
||
if isinstance(settings_str, str):
|
||
settings = json.loads(settings_str)
|
||
else:
|
||
settings = settings_str or {}
|
||
except json.JSONDecodeError:
|
||
settings = {}
|
||
|
||
# 设置默认值
|
||
duration = settings.get('duration', 300) # 默认5分钟
|
||
frequency = settings.get('frequency', 30) # 默认30Hz
|
||
|
||
# 创建检测会话
|
||
session_id = db_manager.create_detection_session(
|
||
patient_id=patient_id,
|
||
settings=settings
|
||
)
|
||
|
||
logger.info(f'创建检测会话成功: {session_id}, 患者ID: {patient_id}')
|
||
|
||
# 初始化检测状态
|
||
current_detection = {
|
||
'session_id': session_id,
|
||
'patient_id': patient_id,
|
||
'status': 'running',
|
||
'start_time': datetime.now(),
|
||
'settings': settings,
|
||
'data_points': 0
|
||
}
|
||
|
||
# 启动检测线程
|
||
detection_thread = threading.Thread(
|
||
target=run_detection,
|
||
args=(session_id, settings)
|
||
)
|
||
detection_thread.start()
|
||
|
||
return jsonify({
|
||
'success': True,
|
||
'data': {'session_id': session_id},
|
||
'message': '检测已开始'
|
||
})
|
||
|
||
except Exception as e:
|
||
logger.error(f'开始检测失败: {e}')
|
||
return jsonify({'success': False, 'error': str(e)}), 500
|
||
|
||
@app.route('/api/detection/stop', methods=['POST'])
|
||
def stop_detection():
|
||
"""停止检测"""
|
||
global current_detection, detection_thread
|
||
|
||
try:
|
||
data = request.get_json() or {}
|
||
session_id = data.get('sessionId')
|
||
frontend_duration = data.get('duration', 0) # 前端计算的持续时间
|
||
|
||
if not current_detection or current_detection.get('status') != 'running':
|
||
return jsonify({'success': False, 'error': '没有正在进行的检测'}), 400
|
||
|
||
# 更新检测状态
|
||
current_detection['status'] = 'stopped'
|
||
end_time = datetime.now()
|
||
current_detection['end_time'] = end_time
|
||
|
||
# 计算持续时间（优先使用前端传递的时间，否则使用后端计算的时间）
|
||
duration = frontend_duration
|
||
if duration <= 0:
|
||
start_time = current_detection.get('start_time')
|
||
duration = int((end_time - start_time).total_seconds()) if start_time else 0
|
||
|
||
# 等待检测线程结束
|
||
if detection_thread and detection_thread.is_alive():
|
||
detection_thread.join(timeout=5)
|
||
|
||
# 如果提供了sessionId，更新数据库中的会话状态
|
||
if session_id:
|
||
# 更新会话状态为completed，并设置结束时间
|
||
db_manager.update_session_status(session_id, 'completed')
|
||
|
||
# 更新持续时间
|
||
if duration > 0:
|
||
db_manager.update_session_duration(session_id, duration)
|
||
|
||
logger.info(f'检测会话已停止: {session_id}, 持续时间: {duration}秒')
|
||
|
||
current_detection = None
|
||
|
||
return jsonify({
|
||
'success': True,
|
||
'message': '检测已停止',
|
||
'sessionId': session_id,
|
||
'duration': duration
|
||
})
|
||
|
||
current_detection = None
|
||
|
||
return jsonify({
|
||
'success': True,
|
||
'message': '检测已停止'
|
||
})
|
||
|
||
except Exception as e:
|
||
logger.error(f'停止检测失败: {e}')
|
||
return jsonify({
|
||
'success': False,
|
||
'message': f'停止检测失败: {str(e)}'
|
||
}), 500
|
||
|
||
@app.route('/api/sessions/<session_id>/video-path', methods=['PUT'])
|
||
def update_session_video_path(session_id):
|
||
"""更新会话视频路径"""
|
||
try:
|
||
data = request.get_json()
|
||
if not data or 'videoPath' not in data:
|
||
return jsonify({
|
||
'success': False,
|
||
'message': '缺少视频路径参数'
|
||
}), 400
|
||
|
||
video_path = data['videoPath']
|
||
|
||
# 更新数据库中的视频路径
|
||
db_manager.update_session_video_path(session_id, video_path)
|
||
|
||
return jsonify({
|
||
'success': True,
|
||
'message': '视频路径更新成功',
|
||
'sessionId': session_id,
|
||
'videoPath': video_path
|
||
})
|
||
|
||
except Exception as e:
|
||
logger.error(f'更新会话视频路径失败: {e}')
|
||
return jsonify({
|
||
'success': False,
|
||
'message': f'更新失败: {str(e)}'
|
||
}), 500
|
||
|
||
@app.route('/api/detection/status', methods=['GET'])
|
||
def get_detection_status():
|
||
"""获取检测状态"""
|
||
try:
|
||
if not current_detection:
|
||
return jsonify({
|
||
'success': True,
|
||
'data': {'status': 'idle'}
|
||
})
|
||
|
||
# 计算运行时间
|
||
if current_detection.get('status') == 'running':
|
||
elapsed = (datetime.now() - current_detection['start_time']).total_seconds()
|
||
current_detection['elapsed_time'] = int(elapsed)
|
||
|
||
return jsonify({
|
||
'success': True,
|
||
'data': current_detection
|
||
})
|
||
|
||
except Exception as e:
|
||
logger.error(f'获取检测状态失败: {e}')
|
||
return jsonify({'success': False, 'error': str(e)}), 500
|
||
|
||
@app.route('/api/detection/data', methods=['GET'])
|
||
def get_realtime_data():
|
||
"""获取实时检测数据"""
|
||
try:
|
||
if not current_detection or current_detection.get('status') != 'running':
|
||
return jsonify({'success': False, 'error': '没有正在进行的检测'})
|
||
|
||
# 获取最新的检测数据
|
||
session_id = current_detection['session_id']
|
||
data = detection_engine.get_latest_data(session_id)
|
||
|
||
return jsonify({
|
||
'success': True,
|
||
'data': data
|
||
})
|
||
|
||
except Exception as e:
|
||
logger.error(f'获取实时数据失败: {e}')
|
||
return jsonify({'success': False, 'error': str(e)}), 500
|
||
|
||
# ==================== 数据分析API ====================
|
||
|
||
@app.route('/api/analysis/session/<session_id>', methods=['GET'])
|
||
def analyze_session(session_id):
|
||
"""分析检测会话数据"""
|
||
try:
|
||
# 获取会话数据
|
||
session_data = db_manager.get_session_data(session_id)
|
||
if not session_data:
|
||
return jsonify({'success': False, 'error': '会话不存在'}), 404
|
||
|
||
# 进行数据分析
|
||
analysis_result = data_processor.analyze_session(session_data)
|
||
|
||
# 保存分析结果
|
||
db_manager.save_analysis_result(session_id, analysis_result)
|
||
|
||
return jsonify({
|
||
'success': True,
|
||
'data': analysis_result
|
||
})
|
||
|
||
except Exception as e:
|
||
logger.error(f'分析会话数据失败: {e}')
|
||
return jsonify({'success': False, 'error': str(e)}), 500
|
||
|
||
@app.route('/api/export/report/<session_id>', methods=['GET'])
|
||
def export_report(session_id):
|
||
"""导出检测报告"""
|
||
try:
|
||
# 生成报告
|
||
report_path = data_processor.generate_report(session_id)
|
||
|
||
if not os.path.exists(report_path):
|
||
return jsonify({'success': False, 'error': '报告生成失败'}), 500
|
||
|
||
return send_file(
|
||
report_path,
|
||
as_attachment=True,
|
||
download_name=f'detection_report_{session_id}.pdf'
|
||
)
|
||
|
||
except Exception as e:
|
||
logger.error(f'导出报告失败: {e}')
|
||
return jsonify({'success': False, 'error': str(e)}), 500
|
||
|
||
# ==================== 历史记录API ====================
|
||
|
||
@app.route('/api/history/sessions', methods=['GET'])
|
||
def get_detection_sessions():
|
||
"""获取检测会话历史"""
|
||
try:
|
||
page = int(request.args.get('page', 1))
|
||
size = int(request.args.get('size', 10))
|
||
patient_id = request.args.get('patient_id')
|
||
|
||
sessions = db_manager.get_detection_sessions(page, size, patient_id)
|
||
total = db_manager.get_sessions_count(patient_id)
|
||
|
||
return jsonify({
|
||
'success': True,
|
||
'data': {
|
||
'sessions': sessions,
|
||
'total': total,
|
||
'page': page,
|
||
'size': size
|
||
}
|
||
})
|
||
|
||
except Exception as e:
|
||
logger.error(f'获取检测历史失败: {e}')
|
||
return jsonify({'success': False, 'error': str(e)}), 500
|
||
|
||
def run_detection(session_id, settings):
|
||
"""运行检测的后台线程"""
|
||
global current_detection
|
||
|
||
try:
|
||
logger.info(f'开始检测会话: {session_id}')
|
||
|
||
# 检测循环
|
||
while (current_detection and
|
||
current_detection.get('status') == 'running'):
|
||
|
||
# 采集数据
|
||
if device_manager:
|
||
data = device_manager.collect_data()
|
||
if data:
|
||
# 保存数据到数据库
|
||
db_manager.save_detection_data(session_id, data)
|
||
current_detection['data_points'] += 1
|
||
|
||
# 根据采样频率控制循环间隔
|
||
frequency = settings.get('frequency', 60)
|
||
time.sleep(1.0 / frequency)
|
||
|
||
# 检查是否达到设定时长
|
||
duration = settings.get('duration', 0)
|
||
if duration > 0:
|
||
elapsed = (datetime.now() - current_detection['start_time']).total_seconds()
|
||
if elapsed >= duration:
|
||
current_detection['status'] = 'completed'
|
||
break
|
||
|
||
# 更新会话状态
|
||
if current_detection:
|
||
db_manager.update_session_status(
|
||
session_id,
|
||
current_detection['status'],
|
||
current_detection.get('data_points', 0)
|
||
)
|
||
|
||
logger.info(f'检测会话完成: {session_id}')
|
||
|
||
except Exception as e:
|
||
logger.error(f'检测线程异常: {e}')
|
||
if current_detection:
|
||
current_detection['status'] = 'error'
|
||
current_detection['error'] = str(e)
|
||
|
||
# ==================== 截图和录像API已移至detection_engine.py ====================
|
||
# 相关路由现在通过detection_bp Blueprint提供
|
||
|
||
# ==================== 错误处理 ====================
|
||
|
||
@app.errorhandler(404)
|
||
def not_found(error):
|
||
return jsonify({'success': False, 'error': 'API接口不存在'}), 404
|
||
|
||
@app.errorhandler(500)
|
||
def internal_error(error):
|
||
return jsonify({'success': False, 'error': '服务器内部错误'}), 500
|
||
|
||
if __name__ == '__main__':
|
||
import argparse
|
||
|
||
# 解析命令行参数
|
||
parser = argparse.ArgumentParser(description='Body Balance Evaluation System Backend')
|
||
parser.add_argument('--host', default=None, help='Host address to bind to')
|
||
parser.add_argument('--port', type=int, default=None, help='Port number to bind to')
|
||
parser.add_argument('--debug', action='store_true', help='Enable debug mode')
|
||
args = parser.parse_args()
|
||
|
||
try:
|
||
# 初始化应用
|
||
init_app()
|
||
|
||
# 确定主机和端口
|
||
host = args.host if args.host else config.get('SERVER', 'host', fallback='127.0.0.1')
|
||
port = args.port if args.port else config.getint('SERVER', 'port', fallback=5000)
|
||
debug = args.debug if args.debug else config.getboolean('APP', 'debug', fallback=False)
|
||
|
||
# 启动Flask+SocketIO服务
|
||
logger.info(f'启动后端服务... Host: {host}, Port: {port}, Debug: {debug}')
|
||
socketio.run(app,
|
||
host=host,
|
||
port=port,
|
||
debug=debug,
|
||
use_reloader=False, # 禁用热重载以避免进程问题
|
||
log_output=True, # 启用详细日志
|
||
allow_unsafe_werkzeug=True
|
||
)
|
||
except KeyboardInterrupt:
|
||
logger.info('服务被用户中断')
|
||
except Exception as e:
|
||
logger.error(f'服务启动失败: {e}')
|
||
sys.exit(1)
|
||
finally:
|
||
logger.info('后端服务已停止')
|
||
|
||
# ==================== WebSocket 事件处理 ====================
|
||
|
||
@socketio.on('start_rtsp')
|
||
def handle_start_rtsp(data=None):
|
||
logger.info(f'收到start_rtsp事件，客户端ID: {request.sid}, 数据: {data}')
|
||
|
||
try:
|
||
if video_stream_manager:
|
||
result = video_stream_manager.start_rtsp_stream()
|
||
emit('rtsp_status', result)
|
||
else:
|
||
emit('rtsp_status', {'status': 'error', 'message': '视频流管理器未初始化'})
|
||
|
||
except Exception as e:
|
||
logger.error(f'启动RTSP失败: {e}')
|
||
emit('rtsp_status', {'status': 'error', 'message': f'启动失败: {str(e)}'})
|
||
|
||
@socketio.on('stop_rtsp')
|
||
def handle_stop_rtsp(data=None):
|
||
logger.info(f'收到stop_rtsp事件，客户端ID: {request.sid}, 数据: {data}')
|
||
|
||
try:
|
||
if video_stream_manager:
|
||
result = video_stream_manager.stop_rtsp_stream()
|
||
emit('rtsp_status', result)
|
||
else:
|
||
emit('rtsp_status', {'status': 'error', 'message': '视频流管理器未初始化'})
|
||
|
||
except Exception as e:
|
||
logger.error(f'停止RTSP失败: {e}')
|
||
emit('rtsp_status', {'status': 'error', 'message': f'停止失败: {str(e)}'})
|
||
|
||
@socketio.on('connect')
|
||
def handle_connect():
|
||
logger.info(f'客户端连接: {request.sid}')
|
||
emit('connect_status', {'status': 'connected', 'sid': request.sid, 'message': '连接成功'})
|
||
|
||
@socketio.on('disconnect')
|
||
def handle_disconnect():
|
||
logger.info(f'客户端断开连接: {request.sid}')
|
||
|
||
@socketio.on('ping')
|
||
def handle_ping(data=None):
|
||
logger.info(f'收到ping事件，客户端ID: {request.sid}, 数据: {data}')
|
||
emit('pong', {'timestamp': time.time(), 'message': 'pong'}) |