🔺1、前序文章：

【智能家居 (1) ——工厂模式继电器控制灯】

【智能家居 (2) ——工厂模式火焰报警器】

【智能家居 (3) ——语音识别控制端线程】

【智能家居 (4) ——网络控制端线程】

【智能家居 (5) ——前四章内容整合】

【基于 Libcurl 通过 https 访问翔云 OCR 实现人脸识别】

【树莓派安装mjpg-streamer使用摄像头】

【智能家居 (6) ——人脸识别控制开关电磁锁】

🔺1、main.c 文件（主函数）：

#include <stdio.h>
#include <string.h>
#include "equipment.h"
#include "command.h"
#include <pthread.h>
#include <unistd.h>

#include <curl/curl.h>
#include <sys/types.h>
#include <unistd.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>

char buf[1024] = {'\0'};		//用于存放翔云返回的数据

struct Equipment *findEquipByName(char *name,struct Equipment *phead);		//一些函数声明
struct Command *findCommandByName(char *name,struct Command *phead);
char *getPicBase64FromFile(char *filePath);
size_t readData(void *ptr, size_t size, size_t nmemb, void *stream);
unsigned int postUrl();

void *voiceControlThread(void *data);
void *socketControlThread(void *data);
void *socketReadThread(void *data);
void *fireAlarmThread(void *data);

struct Equipment *equiphead = NULL;			//设备工厂链表头节点
struct Command *cmdhead = NULL;				//指令控制工厂链表节点头
struct Command *socketHandler = NULL;		//“网络控制线程”执行的函数使用到的全局变量


int main()
{
	if(wiringPiSetup() == -1){					//使用wiringPi库需要初始化
		printf("wiringPiSetup failed!\n");
		return -1; 
	}

	equiphead = addBathroomLightToLink(equiphead);			//各设备加入设备工厂
	equiphead = addSecondfloorLightToLink(equiphead);	
	equiphead = addLivingroomLightToLink(equiphead);
	equiphead = addRestaurantLightToLink(equiphead);
	equiphead = addFireDetectionToLink(equiphead);
	equiphead = addBuzzerToLink(equiphead);
	equiphead = addEleLockToLink(equiphead);

	cmdhead = addVoiceControlToLink(cmdhead);				//各指令控制加入指令控制工厂
	cmdhead = addSocketControlToLink(cmdhead);

	struct Equipment *tmpequiphead = equiphead;
	while(tmpequiphead != NULL){						//设备工厂所有设备初始化
		tmpequiphead->Init(tmpequiphead->pinNum);
		tmpequiphead = tmpequiphead->next;
	}

	pthread_t voiceControl_thread;
	pthread_t socketControl_thread;
	pthread_t fireAlarm_thread;
	pthread_create(&voiceControl_thread,NULL,voiceControlThread,NULL);		//创建线程：语音控制
	pthread_create(&socketControl_thread,NULL,socketControlThread,NULL);	//创建线程：网络控制
	pthread_create(&fireAlarm_thread,NULL,fireAlarmThread,NULL);			//创建线程：火灾报警系统


	pthread_join(voiceControl_thread, NULL);		//主函数等待线程退出
	pthread_join(socketControl_thread, NULL);		//主函数等待线程退出
	pthread_join(fireAlarm_thread, NULL);			//主函数等待线程退出
	
	return 0;
}


void *voiceControlThread(void *data)			//“语音控制线程”执行的函数
{
	int nread;
	char *temName = NULL;
	struct Command *voiceHandler = NULL;
	struct Equipment *linkHandler;


	voiceHandler = findCommandByName("voiceControl",cmdhead);		//寻找“语音控制”所在节点，返回给voiceHandler
	if(voiceHandler == NULL){
		printf("find voiceHandler error\n");
		pthread_exit(NULL);
	}
	if(voiceHandler->Init(voiceHandler) < 0){				//“语音控制”功能初始化
		printf("voiceControl init error\n");
		pthread_exit(NULL);
	}


	while(1){
		nread = voiceHandler->getCommand(voiceHandler);			//获取指令
		if(nread == 0){											//没有获取到指令
			printf("No command received\n");
		}else{													//获取到指令
			printf("Get voice command:%s\n",voiceHandler->command);

												//以下为根据不同指令执行相应操作

			if(strstr("OpBaLi\r\n",voiceHandler->command) != NULL){
				linkHandler = findEquipByName("bathroomLight",equiphead);
				linkHandler->open(linkHandler->pinNum);
			}

			if(strstr("ClBaLi\r\n",voiceHandler->command) != NULL){
				linkHandler = findEquipByName("bathroomLight",equiphead);
				linkHandler->close(linkHandler->pinNum);
			}

			if(strstr("OpSeLi\r\n",voiceHandler->command) != NULL){
				linkHandler = findEquipByName("secondfloorLight",equiphead);
				linkHandler->open(linkHandler->pinNum);
			}

			if(strstr("ClSeLi\r\n",voiceHandler->command) != NULL){
				linkHandler = findEquipByName("secondfloorLight",equiphead);
				linkHandler->close(linkHandler->pinNum);
			}

			if(strstr("OpLiLi\r\n",voiceHandler->command) != NULL){
				linkHandler = findEquipByName("livingroomLight",equiphead);
				linkHandler->open(linkHandler->pinNum);
			}

			if(strstr("ClLiLi\r\n",voiceHandler->command) != NULL){
				linkHandler = findEquipByName("livingroomLight",equiphead);
				linkHandler->close(linkHandler->pinNum);
			}

			if(strstr("OpReLi\r\n",voiceHandler->command) != NULL){
				linkHandler = findEquipByName("restaurantLight",equiphead);
				linkHandler->open(linkHandler->pinNum);
			}

			if(strstr("ClReLi\r\n",voiceHandler->command) != NULL){
				linkHandler = findEquipByName("restaurantLight",equiphead);
				linkHandler->close(linkHandler->pinNum);
			}

			if(strstr("OpAlLi\r\n",voiceHandler->command) != NULL){
				linkHandler = findEquipByName("bathroomLight",equiphead);
				linkHandler->open(linkHandler->pinNum);
			
				linkHandler = findEquipByName("secondfloorLight",equiphead);
				linkHandler->open(linkHandler->pinNum);
				
				linkHandler = findEquipByName("livingroomLight",equiphead);
				linkHandler->open(linkHandler->pinNum);
				
				linkHandler = findEquipByName("restaurantLight",equiphead);
				linkHandler->open(linkHandler->pinNum);
			}

			if(strstr("ClAlLi\r\n",voiceHandler->command) != NULL){
				linkHandler = findEquipByName("bathroomLight",equiphead);
				linkHandler->close(linkHandler->pinNum);
			
				linkHandler = findEquipByName("secondfloorLight",equiphead);
				linkHandler->close(linkHandler->pinNum);
				
				linkHandler = findEquipByName("livingroomLight",equiphead);
				linkHandler->close(linkHandler->pinNum);
				
				linkHandler = findEquipByName("restaurantLight",equiphead);
				linkHandler->close(linkHandler->pinNum);
			}
			
			if(strstr("OpLock\r\n",voiceHandler->command) != NULL){
				linkHandler = findEquipByName("eleLock",equiphead);
				
				system("raspistill -o image.jpg");						//拍摄照片命名为 image.jpg
				system("convert -resize 400 image.jpg face2.jpg");		//降低拍摄的照片的大小，命名为 face2.jpg
				system("rm image.jpg");									//删除 image.jpg 临时照片
				// face1.jpg 为对比人脸照片，face2.jpg 为即拍人脸照片
				
				postUrl();
				system("rm face2.jpg");
				if(strstr(buf,"是") != NULL){							//如果返回对比数据是同一个人
					linkHandler->open(linkHandler->pinNum);				//开锁
					delay(10000);										//延时10000毫秒=10秒
					linkHandler->close(linkHandler->pinNum);			//关锁
				}
			}
		}
	}
}


void *socketControlThread(void *data)				//“网络控制线程”执行的函数
{
	int c_fd;
	struct sockaddr_in c_addr;
	memset(&c_addr,0,sizeof(struct sockaddr_in));
	socklen_t clen = sizeof(struct sockaddr_in);
	pthread_t socketRead_thread;


	socketHandler = findCommandByName("socketControl",cmdhead);		//寻找“网络控制”所在节点，返回给socketHandler
	if(socketHandler == NULL){
		printf("find socketHandler error\n");
		pthread_exit(NULL);
	}
	if(socketHandler->Init(socketHandler) < 0){				//“网络控制”功能初始化
		printf("socketControl init error\n");
		pthread_exit(NULL);
	}


	while(1){
		c_fd = accept(socketHandler->s_fd,(struct sockaddr*)&c_addr,&clen);		//接收连接请求，阻塞至有客户端完成三次握手
		socketHandler->fd = c_fd;					//将套接字描述符返回给“网络控制”链表节点

		pthread_create(&socketRead_thread,NULL,socketReadThread,NULL);			//创建新线程：用于读取TCP端口指令
	}
}


void *socketReadThread(void *data)				//“读取tcp端口指令线程”执行的函数
{
	int nread;
	struct Equipment *linkHandler;
	memset(socketHandler->command,'\0',sizeof(socketHandler->command));		//将指令存放的空间置空
	nread = read(socketHandler->fd,socketHandler->command,sizeof(socketHandler->command));		//读取指令
	if(nread == 0){
		printf("No command received\n");			//没有读取到指令
	}else{
		printf("Get net command:%s\n",socketHandler->command);		//读取到指令

											//以下为根据不用指令执行相应操作

		if(strstr("OpBaLi\r\n",socketHandler->command) != NULL){
			linkHandler = findEquipByName("bathroomLight",equiphead);
			linkHandler->open(linkHandler->pinNum);
		}

		if(strstr("ClBaLi\r\n",socketHandler->command) != NULL){
			linkHandler = findEquipByName("bathroomLight",equiphead);
			linkHandler->close(linkHandler->pinNum);
		}

		if(strstr("OpSeLi\r\n",socketHandler->command) != NULL){
			linkHandler = findEquipByName("secondfloorLight",equiphead);
			linkHandler->open(linkHandler->pinNum);
		}

		if(strstr("ClSeLi\r\n",socketHandler->command) != NULL){
			linkHandler = findEquipByName("secondfloorLight",equiphead);
			linkHandler->close(linkHandler->pinNum);
		}

		if(strstr("OpLiLi\r\n",socketHandler->command) != NULL){
			linkHandler = findEquipByName("livingroomLight",equiphead);
			linkHandler->open(linkHandler->pinNum);
		}

		if(strstr("ClLiLi\r\n",socketHandler->command) != NULL){
			linkHandler = findEquipByName("livingroomLight",equiphead);
			linkHandler->close(linkHandler->pinNum);
		}

		if(strstr("OpReLi\r\n",socketHandler->command) != NULL){
			linkHandler = findEquipByName("restaurantLight",equiphead);
			linkHandler->open(linkHandler->pinNum);
		}

		if(strstr("ClReLi\r\n",socketHandler->command) != NULL){
			linkHandler = findEquipByName("restaurantLight",equiphead);
			linkHandler->close(linkHandler->pinNum);
		}

		if(strstr("OpAlLi\r\n",socketHandler->command) != NULL){
			linkHandler = findEquipByName("bathroomLight",equiphead);
			linkHandler->open(linkHandler->pinNum);
			
			linkHandler = findEquipByName("secondfloorLight",equiphead);
			linkHandler->open(linkHandler->pinNum);
				
			linkHandler = findEquipByName("livingroomLight",equiphead);
			linkHandler->open(linkHandler->pinNum);
				
			linkHandler = findEquipByName("restaurantLight",equiphead);
			linkHandler->open(linkHandler->pinNum);
		}

		if(strstr("ClAlLi\r\n",socketHandler->command) != NULL){
			linkHandler = findEquipByName("bathroomLight",equiphead);
			linkHandler->close(linkHandler->pinNum);
		
			linkHandler = findEquipByName("secondfloorLight",equiphead);
			linkHandler->close(linkHandler->pinNum);
				
			linkHandler = findEquipByName("livingroomLight",equiphead);
			linkHandler->close(linkHandler->pinNum);
				
			linkHandler = findEquipByName("restaurantLight",equiphead);
			linkHandler->close(linkHandler->pinNum);
		}

		if(strstr("OpLock\r\n",socketHandler->command) != NULL){
			linkHandler = findEquipByName("eleLock",equiphead);
				
			system("raspistill -o image.jpg");						//拍摄照片命名为 image.jpg
			system("convert -resize 400 image.jpg face2.jpg");		//降低拍摄的照片的大小，命名为 face2.jpg
			system("rm image.jpg");									//删除 image.jpg 临时照片
			// face1.jpg 为对比人脸照片，face2.jpg 为即拍人脸照片
				
			postUrl();
			system("rm face2.jpg");
			if(strstr(buf,"是") != NULL){							//如果返回对比数据是同一个人
					linkHandler->open(linkHandler->pinNum);			//开锁
					delay(10000);									//延时10000毫秒=10秒
					linkHandler->close(linkHandler->pinNum);		//关锁
			}
		}		
	}
}


void *fireAlarmThread(void *data)				//“火灾报警器线程”执行的函数
{
	int status;
	struct Equipment *firetmp = NULL;
	struct Equipment *buztmp = NULL;

	firetmp = findEquipByName("fireDetection",equiphead);		//寻找“火焰传感器”链表节点，返回给firetmp
	buztmp = findEquipByName("buzzer",equiphead);				//寻找“蜂鸣器”链表节点，返回给buztmp

	while(1){
		status = firetmp->readStatus(firetmp->pinNum);			//读取“火焰传感器”状态
	
		if(status == 0){						//检测到火焰或强光源
			buztmp->open(buztmp->pinNum);		//打开蜂鸣器
			delay(1000);						//延时1000毫秒=1秒
		}

		if(status == 1){						//未检测到火焰、强光源或解除警报
			buztmp->close(buztmp->pinNum);		//关闭蜂鸣器
		}
	}
}

unsigned int postUrl()
{
		CURL *curl;
        CURLcode res;
        char *key = "xxxxxxxxxxxxxxxxxxxxxxxx";						//用户 OCR Key 值
        char *secret = "xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx";			//用户 OCR Secret 值
        int typeId = 21;											//识别类型 21
        char *format = "xml";										//设置返回格式 "xml"

        char *postString;


        char *bufPic1 = getPicBase64FromFile("./face1.jpg");		//获取图片 1 的 base64流
        char *bufPic2 = getPicBase64FromFile("./face2.jpg");		//获取图片 2 的 base64流

        int len = strlen(key)+strlen(secret)+strlen(bufPic1)+strlen(bufPic2)+124;			//计算所需传参字符串大小
        postString = (char *)malloc(len);													//为传参字符串创建空间
        memset(postString,'\0',len);														//初始化传参字符串空间
        sprintf(postString,"&img1=%s&img2=%s&key=%s&secret=%s&typeId=%d&format=%s",
                        bufPic1,bufPic2,key,secret,typeId,format);							//拼接平台要求的传参字符串

        curl = curl_easy_init();
        if (curl)
        {
                curl_easy_setopt(curl, CURLOPT_POSTFIELDS, postString);    					//指定 post 内容
                curl_easy_setopt(curl, CURLOPT_URL, "https://netocr.com/api/faceliu.do");	//指定 url
                curl_easy_setopt(curl, CURLOPT_WRITEFUNCTION, readData);					//接收到数据，调用回调函数
                res = curl_easy_perform(curl);
				curl_easy_cleanup(curl);													//清除 curl
        }
        return 1;
}

char *getPicBase64FromFile(char *filePath)
{
		int fd;
        int filelen;
        char cmd[128];
        char *bufPic;

        sprintf(cmd,"base64 %s > tmpFile",filePath);		//拼接系统调用字符串
        system(cmd);										//系统调用获取图片 base64流

        fd = open("./tmpFile",O_RDWR);						//存放图片 base64 流的临时文件
        filelen = lseek(fd,0,SEEK_END);						//计算文件字符数
        lseek(fd,0,SEEK_SET);								//指针回到文件头部

        bufPic = (char *)malloc(filelen+2);					//创建空间存放图片 base64流
        memset(bufPic,'\0',filelen+2);						//初始化空间
        read(fd,bufPic,filelen);							//文件内容读取到空间
        close(fd);											//关闭文件描述符

        system("rm -f tmpFile");							//忽略提示关闭临时文件

        return bufPic;										//返回图片 base64流
}

size_t readData(void *ptr, size_t size, size_t nmemb, void *stream)		//回调函数
{
        strncpy(buf,ptr,1024);
}

struct Equipment *findEquipByName(char *name,struct Equipment *phead)		//根据名字寻找设备工厂链表链节函数，并返回链节
{
	struct Equipment *tmp = phead;

	if(phead == NULL){
		return NULL;
	}

	while(tmp != NULL){
		if(strcmp(name,tmp->equipName) == 0){
			return tmp;
		}
		tmp = tmp->next;
	}
	return NULL;
}


struct Command *findCommandByName(char *name,struct Command *phead)			//根据名字寻找指令控制工厂链表链节函数，并返回链节
{
	struct Command *tmp = phead;

	if(phead == NULL){
		return NULL;
	}

	while(tmp != NULL){
		if(strcmp(name,tmp->commandName) == 0){
			return tmp;
		}
		tmp = tmp->next;
	}
	return NULL;
}

🔺2、分文件：

(1) equipment.h 文件（设备类头文件）：

#include <wiringPi.h>				//wiringPi库
#include <stdio.h>
#include <stdlib.h>

struct Equipment								//设备工厂链表节点定义
{
	char equipName[128];						//设备名
	int pinNum;									//引脚号
	int status;									//“初始化设备”函数指针
	int (*Init)(int pinNum);					//“打开设备”函数指针
	int (*open)(int pinNum);					//“关闭设备”函数指针
	int (*close)(int pinNum);

	int (*readStatus)(int pinNum);				//“读取设备状态”函数指针
	int (*changeStatus)(int status);			//“改变设备状态函数指针”

	struct Equipment *next;
};

struct Equipment *addBathroomLightToLink(struct Equipment *phead);			//“浴室灯”设备节点加入设备工厂链表函数声明
struct Equipment *addSecondfloorLightToLink(struct Equipment *phead);		//“二楼灯”设备节点加入设备工厂链表函数声明
struct Equipment *addLivingroomLightToLink(struct Equipment *phead);		//“客厅灯”设备节点加入设备工厂链表函数声明
struct Equipment *addRestaurantLightToLink(struct Equipment *phead);		//“餐厅灯”设备节点加入设备工厂链表函数声明
struct Equipment *addFireDetectionToLink(struct Equipment *phead);			//“火焰传感器”设备节点加入设备工厂链表函数声明
struct Equipment *addBuzzerToLink(struct Equipment *phead);					//“蜂鸣器”设备节点加入设备工厂链表函数声明
struct Equipment *addEleLockToLink(struct Equipment *phead);				//“电磁锁”设备节点加入设备工厂链表函数声明

(2) bathroomLight.c 文件（浴室灯）：

#include "equipment.h"

int bathroomLightInit(int pinNum);				//一些函数声明
int bathroomLightOpen(int pinNum);
int bathroomLightClose(int pinNum);
struct Equipment *addBathroomLightToLink(struct Equipment *phead);


struct Equipment bathroomLight = {		//“浴室灯”设备链表节点
	.equipName = "bathroomLight",
	.pinNum = 21,						//树莓派gpio引脚21
	.Init = bathroomLightInit,
	.open = bathroomLightOpen,
	.close = bathroomLightClose,
};


int bathroomLightInit(int pinNum)			//初始化函数
{
	pinMode(pinNum,OUTPUT);					//配置引脚为输出引脚
	digitalWrite(pinNum,HIGH);				//引脚输出高电平，即默认为关闭状态
}

int bathroomLightOpen(int pinNum)			//打开函数
{
	digitalWrite(pinNum,LOW);
}

int bathroomLightClose(int pinNum)			//关闭函数
{
	digitalWrite(pinNum,HIGH);
}


struct Equipment *addBathroomLightToLink(struct Equipment *phead)		//头插法将设备节点加入设备工厂链表函数
{
	if(phead == NULL){
		return &bathroomLight;
	}else{
		bathroomLight.next = phead;
		phead = &bathroomLight;
		return phead;
	}
}

(3) secondfloorLight.c 文件（二楼灯）：

#include "equipment.h"

int secondfloorLightInit(int pinNum);				//一些函数声明
int secondfloorLightOpen(int pinNum);
int secondfloorLightClose(int pinNum);
struct Equipment *addSecondfloorLightToLink(struct Equipment *phead);


struct Equipment secondfloorLight = {		//“二楼灯”设备链表节点
	.equipName = "secondfloorLight",
	.pinNum = 22,							//树莓派gpio引脚22
	.Init = secondfloorLightInit,
	.open = secondfloorLightOpen,
	.close = secondfloorLightClose,
	.changeStatus = secondfloorLightChangeStatus,
};


int secondfloorLightInit(int pinNum)			//初始化函数
{
	pinMode(pinNum,OUTPUT);					//配置引脚为输出引脚
	digitalWrite(pinNum,HIGH);				//引脚输出高电平，即默认为关闭状态
}

int secondfloorLightOpen(int pinNum)			//打开函数
{
	digitalWrite(pinNum,LOW);
}

int secondfloorLightClose(int pinNum)			//关闭函数
{
	digitalWrite(pinNum,HIGH);
}


struct Equipment *addSecondfloorLightToLink(struct Equipment *phead)		//头插法将设备节点加入设备工厂链表函数
{
	if(phead == NULL){
		return &secondfloorLight;
	}else{
		secondfloorLight.next = phead;
		phead = &secondfloorLight;
		return phead;
	}
}

(4) livingroomLight.c 文件（客厅灯）：

#include "equipment.h"

int livingroomLightInit(int pinNum);				//一些函数声明
int livingroomLightOpen(int pinNum);
int livingroomLightClose(int pinNum);
struct Equipment *addLivingroomLightToLink(struct Equipment *phead);


struct Equipment livingroomLight = {		//“客厅灯”设备链表节点
	.equipName = "livingroomLight",
	.pinNum = 23,							//树莓派gpio引脚23
	.Init = livingroomLightInit,
	.open = livingroomLightOpen,
	.close = livingroomLightClose,
};


int livingroomLightInit(int pinNum)				//初始化函数
{
	pinMode(pinNum,OUTPUT);					//配置引脚为输出引脚
	digitalWrite(pinNum,HIGH);				//引脚输出高电平，即默认为关闭状态
}

int livingroomLightOpen(int pinNum)				//打开函数
{
	digitalWrite(pinNum,LOW);
}

int livingroomLightClose(int pinNum)			//关闭函数
{
	digitalWrite(pinNum,HIGH);
}


struct Equipment *addLivingroomLightToLink(struct Equipment *phead)			//头插法将设备节点加入设备工厂链表函数
{
	if(phead == NULL){
		return &livingroomLight;
	}else{
		livingroomLight.next = phead;
		phead = &livingroomLight;
		return phead;
	}
}

(5) restaurantLight.c 文件（餐厅灯）：

#include "equipment.h"

int restaurantLightInit(int pinNum);				//一些函数声明
int restaurantLightOpen(int pinNum);
int restaurantLightClose(int pinNum);
struct Equipment *addRestaurantLightToLink(struct Equipment *phead);


struct Equipment restaurantLight = {		//“餐厅灯”设备链表节点
	.equipName = "restaurantLight",
	.pinNum = 24,							//树莓派gpio引脚24
	.Init = restaurantLightInit,
	.open = restaurantLightOpen,
	.close = restaurantLightClose,
};


int restaurantLightInit(int pinNum)				//初始化函数
{
	pinMode(pinNum,OUTPUT);					//配置引脚为输出引脚
	digitalWrite(pinNum,HIGH);				//引脚输出高电平，即默认为关闭状态
}

int restaurantLightOpen(int pinNum)				//打开函数
{
	digitalWrite(pinNum,LOW);
}

int restaurantLightClose(int pinNum)			//关闭函数
{
	digitalWrite(pinNum,HIGH);
}


struct Equipment *addRestaurantLightToLink(struct Equipment *phead)			//头插法将设备节点加入设备工厂链表函数
{
	if(phead == NULL){
		return &restaurantLight;
	}else{
		restaurantLight.next = phead;
		phead = &restaurantLight;
		return phead;
	}
}

(6) fireDetection.c 文件（火焰传感器）：

#include "equipment.h"

int fireDetectionInit(int pinNum);					//一些函数声明
int readFireDetectionStatus(int pinNum);
struct Equipment *addFireDetectionToLink(struct Equipment *phead);


struct Equipment fireDetection = {			//“火焰传感器”设备链表节点
	.equipName = "fireDetection",
	.pinNum = 25,							//树莓派gpio引脚25
	.Init = fireDetectionInit,
	.readStatus = readFireDetectionStatus,
};


int fireDetectionInit(int pinNum)			//初始化函数
{
	pinMode(pinNum,INPUT);					//配置引脚为输入引脚
	digitalWrite(pinNum,HIGH);				//引脚输出高电平，即默认为关闭状态
}

int readFireDetectionStatus(int pinNum)		//读取“火焰传感器”状态函数
{
	return digitalRead(pinNum);
}


struct Equipment *addFireDetectionToLink(struct Equipment *phead)
{
	if(phead == NULL){
		return &fireDetection;
	}else{
		fireDetection.next = phead;
		phead = &fireDetection;
		return phead;
	}
}

(7) buzzer.c 文件（蜂鸣器）：

#include "equipment.h"

int buzzerInit(int pinNum);					//一些函数声明
int buzzerOpen(int pinNum);
int buzzerClose(int pinNum);
struct Equipment *addBuzzerToLink(struct Equipment *phead);


struct Equipment buzzer = {			//“蜂鸣器”设备链表节点
	.equipName = "buzzer",
	.pinNum = 29,					//树莓派gpio引脚29
	.Init = buzzerInit,
	.open = buzzerOpen,
	.close = buzzerClose,
};


int buzzerInit(int pinNum)					//初始化函数
{
	pinMode(pinNum,OUTPUT);					//配置引脚为输出引脚
	digitalWrite(pinNum,HIGH);				//引脚输出高电平，即默认为关闭状态
}

int buzzerOpen(int pinNum)					//打开函数
{
	digitalWrite(pinNum,LOW);
}

int buzzerClose(int pinNum)					//关闭函数
{
	digitalWrite(pinNum,HIGH);
}


struct Equipment *addBuzzerToLink(struct Equipment *phead)			//头插法将设备节点加入设备工厂链表函数
{
	if(phead == NULL){
		return &buzzer;
	}else{
		buzzer.next = phead;
		phead = &buzzer;
		return phead;
	}
}

(8) electromagneticLock.c 文件（电磁锁）：

#include "equipment.h"

int eleLockInit(int pinNum);				//一些函数声明
int eleLockOpen(int pinNum);
int eleLockClose(int pinNum);
struct Equipment *addEleLockToLink(struct Equipment *phead);


struct Equipment eleLock = {			//“电磁锁”设备链表节点
	.equipName = "eleLock",
	.pinNum = 1,						//树莓派gpio引脚 1
	.Init = eleLockInit,
	.open = eleLockOpen,
	.close = eleLockClose,
};


int eleLockInit(int pinNum)			//初始化函数
{
	pinMode(pinNum,OUTPUT);					//配置引脚为输出引脚
	digitalWrite(pinNum,HIGH);				//引脚输出高电平，即默认为关闭状态
}

int eleLockOpen(int pinNum)			//打开函数
{
	digitalWrite(pinNum,LOW);
}

int eleLockClose(int pinNum)			//关闭函数
{
	digitalWrite(pinNum,HIGH);
}


struct Equipment *addEleLockToLink(struct Equipment *phead)		//头插法将设备节点加入设备工厂链表函数
{
	if(phead == NULL){
		return &eleLock;
	}else{
		eleLock.next = phead;
		phead = &eleLock;
		return phead;
	}
}

(9) command.h 文件（指令控制类头文件）：

#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <wiringPi.h>
#include <wiringSerial.h>
#include <sys/types.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include <arpa/inet.h>

struct Command									//指令控制工厂链表节点定义
{
	char commandName[128];						//“控制方式”名字
	char deviceFilesName[128];					//存放初始化功能需要打开的文件的路径
	char command[32];							//存放指令
	int fd;										//存放文件描述符
	int (*Init)(struct Command *file);			//“初始化”函数指针
	int s_fd;									//存放套接字描述符
	char ipAdress[32];							//存放IP地址
	char port[12];								//存放端口号
	int (*getCommand)(struct Command *cmd);		//“获取指令”函数指针
	char log[1024];								//日志（暂未使用）

	struct Command *next;
};

struct Command *addVoiceControlToLink(struct Command *phead);		//“语音控制”加入指令控制工厂链表函数声明
struct Command *addSocketControlToLink(struct Command *phead);		//“网络控制”加入指令控制工厂链表函数声明

(10) voiceControl.c 文件（语音控制）：

#include "command.h"
#include <unistd.h>

int voiceControlInit(struct Command *file);							//“语音控制”功能初始化函数声明
int voiceControlGetCommand(struct Command *cmd);					//“获取指令”函数声明
struct Command *addVoiceControlToLink(struct Command *phead);		//“语音控制”加入指令控制工厂链表函数声明


struct Command voiceControl = {				//“语音控制”链表节点
	.commandName = "voiceControl",
	.deviceFilesName = "/dev/ttyAMA0",
	.command = {'\0'},
	.Init = voiceControlInit,
	.getCommand = voiceControlGetCommand,
	.log = {'\0'},
};


int voiceControlInit(struct Command *file)
{
	int fd;
	if((fd = serialOpen(file->deviceFilesName,9600)) == -1){		//打开树莓派串口，波特率为9600
		exit(-1);
	}
	file->fd = fd;				//打开串口文件成功，返回“文件描述符”到“语音控制”链表节点中
}


int voiceControlGetCommand(struct Command *cmd)					//“获取指令”函数
{
	int nread = 0;
	memset(cmd->command,'\0',sizeof(cmd->command));					//读取串口
	nread = read(cmd->fd,cmd->command,sizeof(cmd->command));		//返回读取到数据的字节数
	return nread;
}


struct Command *addVoiceControlToLink(struct Command *phead)		//头插法将“语音控制”链表节点加入指令控制工厂链表函数
{
	if(phead == NULL){
		return &voiceControl;
	}else{
		voiceControl.next = phead;
		phead = &voiceControl;
		return phead;
	}
}

(11) socketControl.c（网络端口控制）：

#include "command.h"
#include <sys/types.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include <arpa/inet.h>
#include <string.h>
#include <unistd.h>


int socketControlInit(struct Command *file);					//“网络控制”功能初始化函数声明
struct Command *addSocketControlToLink(struct Command *phead);	//“网络控制”加入指令控制工厂链表函数声明


struct Command socketControl = {		//“网络控制”链表节点
	.commandName = "socketControl",
	.command = {'\0'},
	.Init = socketControlInit,
	.ipAdress = "192.168.43.97",		//树莓派连接网络时的IP地址
	.port = "8888",						//树莓派打开待外界连接的端口号
	.log = {'\0'},
};


int socketControlInit(struct Command *file)
{
	int s_fd;											//套接字描述符
	struct sockaddr_in s_addr;
	memset(&s_addr,0,sizeof(struct sockaddr_in));

	s_fd = socket(AF_INET,SOCK_STREAM,0);				//创建套接字
    if(s_fd == -1){										//创建套接字失败时
            perror("socketControl error");
            exit(-1);
    }

	s_addr.sin_family = AF_INET;
    s_addr.sin_port = htons(atoi(file->port));
    inet_aton(file->ipAdress,&s_addr.sin_addr);
	if(bind(s_fd,(struct sockaddr*)&s_addr,sizeof(struct sockaddr_in)) == -1){		//套接字与端口号绑定
    	perror("bind error");
    	exit(-1);
    }

	if(listen(s_fd,10) == -1){				//打开监听
    	perror("listen error");
    	exit(-1);
    }

	file->s_fd = s_fd;						//套接字描述符返回到“网络控制”链表节点
}


struct Command *addSocketControlToLink(struct Command *phead)			//头插法将设备节点加入设备工厂链表函数
{
	if(phead == NULL){
		return &socketControl;
	}else{
		socketControl.next = phead;
		phead = &socketControl;
		return phead;
	}
}
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