def recognize_scene(config, system_data):
    time = system_data['time']
    app_name = system_data['app_name']
    system_load = system_data['system_load']
    
    # 示例场景识别逻辑，使用系统数据
    if "office" in app_name.lower() and system_load < 50:
        return {'type': 'office'}
    elif "video" in app_name.lower() and system_load >= 50:
        return {'type': 'video'}
    else:
        return {'type': 'default'}