智能管家(原型)- 语音控制设备

最近研究物联网相关的东西,做了个小原型,称它为智能管家,能用语音控制设备以及手机APP控制设备。

先看看结构图:

功能描述:

  1. 通过语音控制器,说话,比如说出“帮我开灯”,led灯就量,或者说出“把这个灯给关了”,led灯就灭了
  2. 手机APP上有手动开关来控制led灯的亮和灭
  3. 支持全国范围覆盖,既不能局限于家里的LAN

目前为止,用到的设备主要就是ESPDuino。

ESPDuino:WIFI+Arduino

相关:

  1. ESP8266-01/ESP-01虽然很便宜但是用起来很麻烦,所以弃用
  2. Arduino Yun/Tian虽然功能强大,但是太贵700、800的节奏,弃用(不过这2个是带操作系统的,linino,基于openwrt)
  3. ESPDuino: 不带OS,集成WIFI功能,方便还便宜,大概40左右

 分别来介绍下,分为:

  1. OneNet部分
  2. 手机APP部分
  3. 语音控制器部分
  4. ESPDuino执行部分

OneNet部分:

这里我们的主要工作是建立设备,记录下api_key,产品Id这些,并且我们使用的是MQTT协议进行通信(在产品定义中有)(需要新建产品以及新建设备2个步骤)

 

 手机APP部分

由于不会app开发,并且onenet提供了简单的app平台,因此就用onenet的来做,如下,新增一个应用后进入设计app界面:

上图中代表,此时点击 ON button就会下发指令到设备espduino,并且指令为   开灯  字符串, OFF button则为指令  关灯  字符串。

然后保存,需要在手机上看的话,需要安装onenet的app,需要自己找找,最终效果截图:

手机app部分也算完工了,很简陋,但是能控制就好。

语音控制器部分

这个部分分成了2个部分:语音解析文本及命令解析、命令下发;

语音解析文本及命令解析程序:

用的是讯飞语音api,c代码,我是用MFC做了个GUI程序,把demo代码嵌进去,把文本解析成相应的命令,如“开灯”、“关灯”

命令下发程序:

接收MFC发来的命令,比如“开灯”、“关灯”,然后调用onenet的api来下发指令到设备

这部分是用C#做的,因为有很方便的现成的库,很容易的几行代码就搞定

由于MFC比较复杂,这部分的我就截几段我认为关键的代码吧:

 

 MFC代码:

static void show_result(char *string, char is_over)
{
	COORD orig, current;
	CONSOLE_SCREEN_BUFFER_INFO info;
	HANDLE w = GetStdHandle(STD_OUTPUT_HANDLE);
	GetConsoleScreenBufferInfo(w, &info);
	current = info.dwCursorPosition;

	if (current.X == last_pos.X && current.Y == last_pos.Y) {
		SetConsoleCursorPosition(w, begin_pos);
	}
	else {
		/* changed by other routines, use the new pos as start */
		begin_pos = current;
	}
	if (is_over)
		SetConsoleTextAttribute(w, FOREGROUND_GREEN);
	//printf("Result: [ %s ]\n", string);
	printf(string);
	if (is_over)
	{
		CString s = CString(string);
		//AfxMessageBox(LPCTSTR(s));

		HWND m_hWnd = pFrame->m_hWnd;//->GetMainWnd()->m_hWnd;

		SetDlgItemText(m_hWnd, IDC_STATIC, LPCTSTR(s));
		SetDlgItemText(m_hWnd, IDC_STATIC_ACTION, LPCTSTR(s));

		CString cmd = CString("C:\\Users\\Danny\\Desktop\\research\\Windows_iat1220_5c82a0db\\samples\\mqtt-publish\\bin\\Debug\\mqtt-publish.exe ");
		if(s.Find(_T("开"))>=0&& s.Find(_T("灯")) >= 0)
			cmd += "开灯";
		else if (s.Find(_T("关")) >= 0 && s.Find(_T("灯")) >= 0)
			cmd += "关灯";
		else
			cmd += "UNKNOWN";

		USES_CONVERSION;
		LPCSTR lpcstr = (LPCSTR)T2A(cmd);

		WinExec(lpcstr, SW_HIDE);
		
		//PostMessage(pFrame->GetMainWnd()->m_hWnd, WM_MY_MESSAGE, NULL, NULL);
	}
	
	if (is_over)
		SetConsoleTextAttribute(w, info.wAttributes);

	GetConsoleScreenBufferInfo(w, &info);
	last_pos = info.dwCursorPosition;
}  

 上面的mqtt-publish.exe就是C#写的下发指令到设备的程序,核心代码:

static void Main(string[] args)
        {
            if (args.Length == 0)
                return;

            string cmd = args[0];

            SendCmdRequest request = new SendCmdRequest();
            request.CmdContent = cmd;
            request.DeviceID = 520355898;
            request.IsByte = true;
            request.Protocol = Scheme.HTTP;

            DefaultOneNETClient client = new DefaultOneNETClient("api.heclouds.com", "vYKWEtx7jELTP2V4o=s1NgE1EdA=");
            var response=client.Execute(request);
            Console.WriteLine(response.Body);

        }

C#很简单,红色部分是需要根据自己的onenet来改的,需要对应上,用到的nuget库:

ESPDuino部分

花费的时间最多的地方是这个部分,其次是MFC部分

#include <ESP8266WiFi.h>
#include <ESP8266HTTPClient.h>
#include <PubSubClient.h>

 
const char *ssid = "你的wifi name";
const char *password = "你的wifi密码";


const char* mqtt_server = "183.230.40.39";
const char* mqtt_device_id="520355898";
const char* mqtt_product_id="223168";
const char* mqtt_api_key="vYKWEtx7jELTP2V4o=s1NgE1EdA=";

WiFiClient client;
PubSubClient mqttClient(client);

long lastMsg = 0;
char msg_buf[200];
char dataTemplete[]="{\"kq\":%d}";
char msgJson[75];
char debug_buf[200];
int i;
unsigned short json_len=0;
uint8_t* packet_p;
uint8_t debug_buffer_start_index = 0;


void setup() {
  Serial.begin(115200);
  pinMode(BUILTIN_LED, OUTPUT);
  delay(10);
 
  WifiConnected();

  initMQTT();
}

void initMQTT()
{
    mqttClient.setServer(mqtt_server, 6002);
    mqttClient.connect(mqtt_device_id,mqtt_product_id,mqtt_api_key);
    mqttClient.setCallback(callback);
}

void callback(char* topic, byte* payload, unsigned int length) {
    Serial.print("Message arrived [");
    Serial.print(topic);
    Serial.print("] ");
    for (int i = 0; i < length; i++) {
      Serial.print((char)payload[i]);
    }
    Serial.println();

    String s_payload=String((char *)payload).substring(0, length);
    Serial.println(s_payload);

    //开灯命令?   
    if (s_payload.equals("关灯")||s_payload.equals("\"关灯\"")) {
      digitalWrite(BUILTIN_LED, LOW);
    } else if (s_payload.equals("开灯")||s_payload.equals("\"开灯\"")){
      digitalWrite(BUILTIN_LED, HIGH);
    }
 
}


void reconnect() {
  // Loop until we're reconnected
  while (!mqttClient.connected()) {
    Serial.print("Attempting MQTT connection...");
if (mqttClient.connect(mqtt_device_id,mqtt_product_id,mqtt_api_key)) { //One net user name as product ID , and password as APIKey Serial.println("connected"); // Once connected, publish an announcement... mqttClient.publish("outTopic", "hello world"); // ... and resubscribe mqttClient.subscribe("inTopic"); } else { Serial.print("failed, rc="); Serial.print(mqttClient.state()); Serial.println(" try again in 5 seconds"); // Wait 5 seconds before retrying delay(5000); } } } void loop() { if (!mqttClient.connected()) { reconnect(); } mqttClient.loop(); long now = millis(); if (now - lastMsg > 2000) { lastMsg = now; int kqValue=analogRead(A0); snprintf(msgJson,sizeof(msgJson),dataTemplete,kqValue); json_len=strlen(msgJson); //packet length count the end char '\0' msg_buf[0]=char(0x03); //palyLoad packet byte 1, one_net mqtt Publish packet payload byte 1, type3 , json type2 msg_buf[1]=char(json_len>>8); //high 8 bits of json_len (16bits as short int type) msg_buf[2]=char(json_len&0xff); //low 8 bits of json_len (16bits as short int type) // snprintf(msg_buf+3,40,dataTemplete,value); memcpy(msg_buf+3,msgJson,strlen(msgJson)); msg_buf[3+strlen(msgJson)] = 0; Serial.print("Publish message: "); Serial.println(msgJson); mqttClient.publish("$dp",(uint8_t*)msg_buf,3+strlen(msgJson),false); } } void WifiConnected() { WiFi.disconnect(); WiFi.mode(WIFI_STA); Serial.println(); Serial.print("Connecting to"); Serial.println(ssid); WiFi.begin(ssid, password); while (WiFi.status() != WL_DISCONNECTED) { delay(500); Serial.print("."); } randomSeed(micros()); Serial.println(""); Serial.println("WIFI connected"); Serial.println(WiFi.localIP()); }  

 

至此,可以语音控制和手机控制了。

后续扩展命令会较容易,可以move到C#部分来做,如果觉得语音转文本有不准的地方,目前的想法是通过神经网络来做识别,而不是通过目前的这种很挫的判断办法

 

 OK,完工。

有要代码的就找我发给你。

 

  

 

posted @ 2019-03-24 13:07  McKay  阅读(2212)  评论(2编辑  收藏  举报