网络学习营

【网络编程学习】ylz0923基于阿里云和百度语音识别控制LED

发布于 2018-08-26 23:55:23 浏览：1894 订阅该版

开发板:           正点原子F407
rt-thread版本: 3.1.0
开发工具:       MDK5.25
BSP:               stm32f4xx-HAL

作业1,调通以太网，跑一遍网络例程；
作业2,连接阿里云
挑战: （通过麦克风）或者事先录制好一段语音，通过百度语义识别功能，获取语音识别结果，根据结果来控制 IO, 或者是 LED 灯；

实现步骤:
1.移植rt-thread\bsp\stm32f429-apollo\drivers\drv_eth.c驱动程序,![drv_eth.c](/uploads/201808/26/233023qgbgwvt4tf0b124g.attach)
    共两处需要修改
![eth1.JPG](/uploads/201808/26/233225ubtntrn83pp3nhtm.jpg)![eth2.JPG](/uploads/201808/26/233226allypqee3l4ds5q5.jpg)
   顺利调通
2.连接阿里云
a)创建阿里云基础版本物联网平台                                                      
文档:[https://help.aliyun.com/document_detail/68946.html?spm=a2c4g.11174283.6.553.c3d91668sWytI5](https://help.aliyun.com/document_detail/68946.html?spm=a2c4g.11174283.6.553.c3d91668sWytI5)
获取:设备三元组
ProductKey: a14SvTbOtTe
DeviceName: F407ZG
DeviceSecret: D2gmdFOJKUWrreB639tKnoKdY6CpeZ48
b)配置rt-thread
    RT-Thread online packages → IoT - internet of things → IoT Cloud → Ali-iotkit:  Ali Cloud SDK for IoT platform
![捕获.JPG](/uploads/201808/26/233701jsygglg4wjbllyls.jpg)
c)测试结果
i   启动
![开启ali.JPG](/uploads/201808/26/234426su96uu26sro6jjus.jpg)
ii  发送消息--云端
![发布消息.JPG](/uploads/201808/26/234426edz6hcakep6xawm6.jpg)
iii 处理消息
![处理执行.JPG](/uploads/201808/26/234425mjv8ahbahh0tz2ea.jpg)
3.语义识别
a)创建语义识别应用
b)配置rt-thread
 RT-Thread online packages → IoT - internet of things → WebClient: A HTTP/HTTPS Client for RT-Thread
![捕获.JPG](/uploads/201808/26/235245r1dezop1a1kk1pux.jpg)
c)调用语义识别api,改写下面链接中的voice_ctrl.c文件[indent]https://www.rt-thread.org/qa/forum.php?mod=attachment&aid=NTc2NXw0Yzk3MTEyNXwxNTM1Mjk3MTE4fDExMjMxfDc4Njg%3D [/indent]
![voice_ctrl.c](/uploads/201808/26/234835jpk7t9kk4hkq1qdi.attach)

测试在msh命令中输入:voice_ctrl open_led.pcm 打开led
![捕获1.JPG](/uploads/201808/26/234551ftpew2ezxbwm2wnt.jpg)
注意事项:voice_ctrl.c文件中的中文部分必须用UTF-8的编码, 否则导致无法识别命令,
原因:百度语义识别api返回的是utf-8编码的文字