def connect_lk(productKey, deviceName, deviceSecret):
global device, iot_connected
key_info = {
'region': 'cn-shanghai',
'productKey': productKey,
'deviceName': deviceName,
'deviceSecret': deviceSecret,
'keepaliveSec': 60
}
# 将三元组信息设置到iot组件中
device = Device()
# 设定连接到物联网平台的回调函数，如果连接物联网平台成功，则调用on_connect函数
device.on(Device.ON_CONNECT, on_connect)
# 配置收到云端属性控制指令的回调函数，如果收到物联网平台发送的属性控制消息，则调用on_props函数
device.on(Device.ON_PROPS, on_props)
# 启动连接阿里云物联网平台过程
device.connect(key_info)
# 等待设备成功连接到物联网平台
while (True):
if iot_connected:
print('物联网平台连接成功')
break
else:
print('sleep for 1 s')
utime.sleep(1)
print('sleep for 2s')
utime.sleep(2)
def do_connect_lk(productKey, deviceName, deviceSecret,speaker):
global device, iot_connected, on_request, on_play
key_info = {
'region' : 'cn-shanghai' , #实例的区域
'productKey': productKey , #物联网平台的PK
'deviceName': deviceName , #物联网平台的DeviceName
'deviceSecret': deviceSecret , #物联网平台的deviceSecret
'keepaliveSec': 60
}
# 将三元组信息设置到iot组件中
device = Device()
# 设定连接到物联网平台的回调函数，如果连接物联网平台成功，则调用on_connect函数
device.on(Device.ON_CONNECT, on_connect)
# 设定连接到物联网平台的回调函数，如果连接物联网平台下发控制服务请求指令，则调用on_service函数
device.on(Device.ON_SERVICE, on_service)
print ("开始连接物联网平台")
# 启动连接阿里云物联网平台过程
device.connect(key_info)
# 等待设备成功连接到物联网平台
while True:
if iot_connected:
print("物联网平台连接成功")
speaker.play(tonepathConnected)
break
else:
print("sleep for 1 s")
time.sleep(1)
# 触发linkit sdk持续处理server端信息
while True:
if on_request:
print('get on request cmd')
speaker.download_resource_file(on_request, resDir) # 语料下载
on_request = False
elif on_play:
speaker.play_voice(on_play,resDir) # 语料播报
on_play = False
time.sleep(0.01)
# 断开连接
device.close()
def main():
global disp, dev, g_score
dev = Device()
disp = display.TFT()
connect_wifi(SSID, PWD)
dev.on(Device.ON_CONNECT, cb_lk_connect)
dev.on(Device.ON_SERVICE, cb_lk_service)
dev.connect(key_info)
while True:
if g_lk_connect:
break
ucamera.init('uart', 33, 32)
ucamera.setProp(ucamera.SET_FRAME_SIZE, ucamera.SIZE_320X240)
while True:
g_lk_service = False
start = utime.ticks_ms()
frame = ucamera.capture()
time_diff = utime.ticks_diff(utime.ticks_ms(), start)
print('capture time : %d' % time_diff)
start = utime.ticks_ms()
disp.image(0, 0, frame, 0)
time_diff = utime.ticks_diff(utime.ticks_ms(), start)
print('image time : %d' % time_diff)
# fileid = dev.uploadFile('face.jpg', None)
detectPedestrian(frame, 'pede.jpg', productKey, deviceName,
deviceSecret)
if (g_score > 0.6):
disp.clear()
disp.font(disp.FONT_DejaVu40)
# 显示识别结果
disp.text(40, 80, 'Pedestrian', disp.RED)
disp.text(40, 120, 'Deteted!!!', disp.RED)
print('Pedestrian Detected!!!')
utime.sleep_ms(1000)
g_score = 0
def main():
global g_connect_status, net, device, deviceSecret, deviceName, productKey, productSecret, device_dyn_resigter_succed
#连接网络
connect_network()
#获取设备的IMEI 作为deviceName 进行动态注册
deviceName = modem.getDevImei()
#初始化物联网平台Device类，获取device实例
device = Device()
if deviceName is not None and len(deviceName) > 0:
#动态注册一个设备
dyn_register_device(productKey, productSecret, deviceName)
else:
print("can't get IMEI")
while deviceSecret is None:
time.sleep(0.2)
print('dynamic successed:' + deviceSecret)
key_info = {
'region': 'cn-shanghai',
'productKey': productKey,
'deviceName': deviceName,
'deviceSecret': deviceSecret,
'keepaliveSec': 60
}
#打印设备信息
print(key_info)
#device.ON_CONNECT 是事件，on_connect是事件处理函数/回调函数
device.on(device.ON_CONNECT, on_connect)
device.on(device.ON_PROPS, on_props)
device.on(device.ON_SERVICE, on_service)
device.on(device.ON_ERROR, on_error)
device.connect(key_info)
write.do_write()
_thread.start_new_thread(rfid_read, ())