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做一个小型的监控#xff0c;类似电子猫眼#xff0c;监测到人之后#xff0c;取一张图 然后发送到自己的邮箱。
架构#xff1a;
1.sr602 传感器监测到人
2. esp32 cam 取图 并通过mqtt协议传到远端服务器
3, 服务器利用python 搭建一个mqtt客户端
做一个小型的监控类似电子猫眼监测到人之后取一张图 然后发送到自己的邮箱。
架构
1.sr602 传感器监测到人
2. esp32 cam 取图 并通过mqtt协议传到远端服务器
3, 服务器利用python 搭建一个mqtt客户端订阅到数据后 将图片保存并发送到指定邮箱 硬件连接 结构设计 软件
服务端代码
#mqtt客户端
import paho.mqtt.client as mqtt
import logging
import os
import email_sendAPPEAR_TOPIC APPEAR_TOPIC
DETAIL_TOPIC DETAIL_TOPIC
mqtt_server xxxxxxxxxx
image_pathimagesimage_index0def on_connect(client, userdata, flags, rc):logging.info(连接到MQTT服务器 str(rc))def on_message(client, userdata, msg):print(msg.topic str(msg.payload))global image_indexif msg.topic APPEAR_TOPIC:if image_index!0:#发送全部图片image_index0email_send.send_email(image_path)logging.info(发送到邮箱完毕)if msg.topic DETAIL_TOPIC:logging.info(收到图片,准备保存到本地)save_location images/str(image_index).jpg f open(save_location, wb) data msg.payload f.write(data) f.close()image_index1logging.info(图片保存到本地完毕)def run():logging.basicConfig(levellogging.INFO)client mqtt.Client(protocol3)client.on_connect on_connectclient.on_message on_messageclient.connect(hostmqtt_server,port1883,keepalive60,bind_address)client.subscribe(APPEAR_TOPIC)client.subscribe(DETAIL_TOPIC)logging.info(启动 MQTT客户端... \n)try:client.loop_forever()except KeyboardInterrupt:passlogging.info(停止 MQTT 客户端\n)if __name__ __main__:run()#邮件发送import smtplib
from email.mime.multipart import MIMEMultipart
from email.mime.text import MIMEText
from email.mime.base import MIMEBase
from email import encoders
from datetime import datetime
import logging
import os
import shutildef send_email(img_path):# 设置发件人、收件人和邮件主题from_email xxxxto_email xxxxsubject 注意,有人出现logging.info(设置收发地址...)# 创建邮件对象msg MIMEMultipart()msg[From] from_emailmsg[To] to_emailmsg[Subject] subject# 添加邮件正文body datetime.now().strftime(%Y-%m-%d %H:%M:%S)msg.attach(MIMEText(body, plain))logging.info(添加正文...)for root,dirs,files in os.walk(img_path):for file in files:if file.endswith(.jpg):img os.path.join(root,file)# 添加附件attachment_filename imgattachment_path imgattachment open(attachment_path, rb)part MIMEBase(application, octet-stream)part.set_payload(attachment.read())encoders.encode_base64(part)part.add_header(Content-Disposition, fattachment; filename {attachment_filename})msg.attach(part) # 连接到SMTP服务器smtp_server smtp.yeah.net # 修改为你的SMTP服务器smtp_port 465smtp_username xxxx # 修改为你的邮箱地址smtp_password xxxx # 修改为你的邮箱密码server smtplib.SMTP_SSL(smtp_server,smtp_port)logging.info(登录邮件服务器...)server.login(smtp_username, smtp_password)logging.info(发送邮件)# 发送邮件server.sendmail(from_email, to_email, msg.as_string())# 关闭连接server.quit()shutil.rmtree(img_path)# 重新创建空文件夹os.makedirs(img_path)if __name__ __main__:logging.basicConfig(levellogging.INFO)send_email(images,True)
客户端代码
#include esp_camera.h
#include WiFi.h
#include PubSubClient.h#define CAMERA_MODEL_AI_THINKER
#include camera_pins.h//WIFI 用户名 密码
//const char* ssid xxxx;
//const char* password xxxx;
const char* ssid xxxx;
const char* password xxxx;//MQTT 服务器地址
const char* mqttServer xxxx;
uint16_t mqttPort 1883;
const char* APPEAR_TOPIC APPEAR_TOPIC;
const char* DETAIL_TOPIC DETAIL_TOPIC;//检测是否有人
uint8_t FOUND_PEOPLE_PIN 14;//人出现的次数
uint8_t found_count 0;WiFiClient espClient;
PubSubClient client(espClient);void setup() {//调试串口Serial.begin(115200);Serial.setDebugOutput(true);//人体红外检测引脚pinMode(FOUND_PEOPLE_PIN, INPUT);//配置相机camera_config_t config;config.ledc_channel LEDC_CHANNEL_0;config.ledc_timer LEDC_TIMER_0;config.pin_d0 Y2_GPIO_NUM;config.pin_d1 Y3_GPIO_NUM;config.pin_d2 Y4_GPIO_NUM;config.pin_d3 Y5_GPIO_NUM;config.pin_d4 Y6_GPIO_NUM;config.pin_d5 Y7_GPIO_NUM;config.pin_d6 Y8_GPIO_NUM;config.pin_d7 Y9_GPIO_NUM;config.pin_xclk XCLK_GPIO_NUM;config.pin_pclk PCLK_GPIO_NUM;config.pin_vsync VSYNC_GPIO_NUM;config.pin_href HREF_GPIO_NUM;config.pin_sccb_sda SIOD_GPIO_NUM;config.pin_sccb_scl SIOC_GPIO_NUM;config.pin_pwdn PWDN_GPIO_NUM;config.pin_reset RESET_GPIO_NUM;config.xclk_freq_hz 20000000;config.pixel_format PIXFORMAT_JPEG;config.frame_size FRAMESIZE_VGA;config.jpeg_quality 10;config.fb_count 1;// 相机初始化esp_err_t err esp_camera_init(config);if (err ! ESP_OK) {Serial.printf(Camera init failed with error 0x%x, err);return;}sensor_t* s esp_camera_sensor_get();s-set_vflip(s, 1);s-set_brightness(s, 2);s-set_saturation(s, -2);s-set_framesize(s, FRAMESIZE_VGA);//连接 WIFIWiFi.begin(ssid, password);WiFi.setSleep(false);while (WiFi.status() ! WL_CONNECTED) {Serial.println(Connecting to WIFI ...);delay(500);}Serial.println(WiFi connected);//连接mqtt 服务器。 640*480 图片大小client.setBufferSize(50 * 1024);client.setServer(mqttServer, mqttPort);while (!client.connected()) {if (client.connect(app)) {Serial.println(Connected to MQTT);} else {Serial.println(Failed to connect to MQTT server, );Serial.print(client.state());delay(1000);}}Serial.print(WiFi.localIP());
}//上传图片
void take_send_photo() {Serial.println(Taking picture...);camera_fb_t* fb NULL;fb esp_camera_fb_get();if (!fb) {Serial.println(Camera capture failed);return;}if (client.beginPublish(DETAIL_TOPIC, fb-len sizeof(long), false)) {unsigned long m millis();int noBytes;noBytes client.write(fb-buf, fb-len);noBytes client.write((byte*)m, sizeof(long));if (!client.endPublish()) {Serial.println(\nupload image error.);}}esp_camera_fb_return(fb);Serial.println(upload image ok.);
}void loop() {//检测到有人后 拍照并上传if (digitalRead(FOUND_PEOPLE_PIN) 1) {take_send_photo();found_count 1;delay(2000);} else {found_count 0;}if (found_count 3) {found_count 0;client.publish(APPEAR_TOPIC, , 0);}client.loop();
}注意事项
1接收图片的邮箱需要开通smtp服务。
2mqtt发送图片不需要转成base64格式但是需要重新设置下缓存大小。
3这个玩意 发热很严重还没测试 两节18650电池能用多久。
