build(smp_init.sh): 添加 fswebcam 安装步骤并增强脚本功能

- 检查并安装 fswebcam，确保摄像头功能可用
- 优化脚本结构，增加错误处理和状态提示
- 保留了原有的虚拟环境创建和 paho-mqtt安装逻辑

cp_file.sh

@@ -0,0 +1,11 @@
+#!/bin/bash
+
+# 转移文件
+
+# 定义变量
+
+cp ../smp_pc_20240625/download_and_execute.service ./
+
+cp ../smp_pc_20240625/smp_init.sh ./
+
+cp ../smp_pc_20240625/test_reload.sh ./

delete_service.sh

@@ -0,0 +1,13 @@
+#!/usr/bin
+
+sudo systemctl status download_and_execute.service
+
+sudo systemctl stop download_and_execute.service
+
+sudo systemctl disable download_and_execute.service
+
+sudo rm /etc/systemd/system/download_and_execute.service
+
+sudo systemctl daemon-reload
+
+echo "Service deleted successfully!"

download_and_execute.service

@@ -0,0 +1,14 @@
+[Unit]
+Description=Run download_and_execute script at startup
+After=network.target
+
+[Service]
+ExecStart=bash test_reload.sh
+Type=simple
+WorkingDirectory=/home/pi/smp_pc
+Restart=on-failure
+RestartSec=10s
+RemainAfterExit=true
+
+[Install]
+WantedBy=multi-user.target

download_and_execute.sh

@@ -82,12 +82,10 @@ fi
 
 
 
-
-
-
 # 进入仓库目录
 cd $local_dir || { echo "无法进入目录 $local_dir"; exit 1; }
 
+
 # 检查smp_init.sh是否存在
 if [ -f "smp_init.sh" ]; then
     # 如果没有执行权限，尝试添加执行权限

edu_coder/extur_edu.py

@@ -61,7 +61,7 @@ client.loop_start()
 response_received = False
 while not response_received:
 	print("等待响应...")
-	client.publish("request/{}".format(user_id), "image produce", qos=2)
+	client.publish("request/{}".format(user_id), "image produce", qos=0)
 	time.sleep(3)
 
 # 停止网络循环并断开连接

edu_coder/mqtt_edu.py

@@ -2,11 +2,14 @@ import paho.mqtt.client as mqtt
 import time
 import os
 
+# 检查是否存在edu_coder/user.txt文件，如果不存在则执行get_user.sh脚本
 if not os.path.exists("edu_coder/user.txt"):
     os.system("cd edu_coder && bash get_user.sh")
     # os.system("bash edu_coder/get_user.sh")
 
+# MQTT代理地址
 broker = '121.40.129.71'
+# MQTT代理端口
 port = 48835
 
 # 回调函数，当客户端收到连接响应时被调用
@@ -19,6 +22,7 @@ def on_connect(client, userdata, flags, rc, properties=None):
 def on_message(client, userdata, msg):
     print("收到消息: " + msg.topic + " " + str(msg.payload))
 
+    # 如果收到的消息是"Set user.txt success!"，则设置response_received为True
     if msg.payload.decode() == "Set user.txt success!":
         global response_received
         response_received = True
@@ -39,7 +43,8 @@ client.connect(broker, port,  60)
 # 启动一个后台线程来处理网络流量和回调
 client.loop_start()
 
-with open("edu_coder/user.txt", "r") as f:
+# 读取edu_coder/user.txt文件中的用户信息
+with open("edu_coder/user.txt", "r", encoding="utf8") as f:
     user = f.read().strip()
 
 # # 发布消息
@@ -49,7 +54,7 @@ with open("edu_coder/user.txt", "r") as f:
 response_received = False
 while not response_received:
     # 发布消息
-    client.publish("request/topic", user, qos=2)
+    client.publish("request/topic", user, qos=0)
     print("等待响应...")
     time.sleep(1)
 
@@ -57,4 +62,4 @@ while not response_received:
 client.loop_stop()
 client.disconnect()
 
-print("收到响应，客户端退出。")
+print("收到响应，客户端退出。")

smp_coder/camera.sh

@@ -1,3 +1,16 @@
 #!/usr/bin/bash
 
-libcamera-still -o /tmp/image.jpg --timeout 10
+IMAGE_PATH="/tmp/image.jpg"
+
+if [ -f "$IMAGE_PATH" ]; then
+    echo "Image already exists at $IMAGE_PATH"
+    if sudo rm "$IMAGE_PATH"; then
+        echo "Successfully deleted $IMAGE_PATH"
+    else
+        echo "Failed to delete $IMAGE_PATH"
+        exit 1
+    fi
+fi
+
+
+fswebcam -r 1280x720 --no-banner -S 20 /tmp/image.jpg

smp_coder/extur_smp.py

@@ -13,6 +13,8 @@ with open("smp_coder/user.txt", "r") as f:
 	user_id = f.read().strip()
 	user_id = user_id.split("=")[-1]
 
+	print("user_id: ", user_id)
+
 # topic = "request/{}".format(user_id)
 
 # 回调函数，当客户端收到连接响应时被调用
@@ -21,6 +23,8 @@ def on_connect(client, userdata, flags, rc, properties=None):
 	# 订阅请求主题
 	client.subscribe("request/{}".format(user_id), qos=2)
 
+	print("订阅请求主题: request/{}".format(user_id))
+
 # 回调函数，当客户端收到消息时被调用
 def on_message(client, userdata, msg):
 	print("收到消息: " + msg.topic + " " + str(msg.payload))
@@ -63,11 +67,11 @@ while not response_received:
 	time.sleep(2)
 
 
-# 停止网络循环并断开连接
-client.loop_stop()
-client.disconnect()
+# # 停止网络循环并断开连接
+# client.loop_stop()
+# client.disconnect()
 
-print("收到响应，客户端退出。")
+# print("收到响应，客户端退出。")
 
 
 

smp_coder/mqtt_smp.py

@@ -55,7 +55,8 @@ client.publish("response/topic", "Set user.txt success!", qos=2)
 
 
 
-command = ["sudo", "myenv/bin/python3", "smp_coder/extur_smp.py"]
+# command = ["sudo", "/home/pi/smp_pc/myenv/bin/python", "/home/pi/smp_pc/smp_coder/extur_smp.py"]
+command = ["sudo", "myenv/bin/python", "smp_coder/extur_smp.py"]
 with open("logex.txt", "w") as log_file:
     process = subprocess.Popen(command, stdout=log_file, stderr=log_file, bufsize=1, universal_newlines=True)
 

smp_init.sh

@@ -1,10 +1,34 @@
 #!/bin/bash
 
 
+# 检查test_reload.sh是否存在
+if [ -f "test_reload.sh" ]; then
+    # 如果没有执行权限，尝试添加执行权限
+    if [ ! -x "test_reload.sh" ]; then
+        echo "test_reload.sh 没有执行权限，尝试添加执行权限..."
+        chmod +x "test_reload.sh" || { echo "无法添加执行权限"; exit 1; }
+    fi
+fi
 
-
+echo "test_reload.sh 存在，并具有执行权限"
 #!/bin/bash
 
+# 安装 fswebcam
+# 检查是否已经安装
+if ! command -v fswebcam &> /dev/null; then
+    echo "fswebcam 未安装，正在安装..."
+    sudo apt-get update
+    sudo apt-get install -y fswebcam
+    if [ $? -eq 0 ]; then
+        echo "fswebcam 安装成功"
+    else
+        echo "fswebcam 安装失败"
+        exit 1
+    fi
+else
+    echo "fswebcam 已安装"
+fi
+
 # 创建一个目录用于存放虚拟环境
 env_dir="myenv"
 
@@ -28,6 +52,8 @@ else
     exit 1
 fi
 
+
+
 # 安装 paho-mqtt 库
 pip install -i https://pypi.tuna.tsinghua.edu.cn/simple paho-mqtt==2.1.0
 
@@ -41,15 +67,29 @@ fi
 # 提示如何退出虚拟环境
 echo "要退出虚拟环境，请运行 'deactivate'"
 
+# 检查服务是否已启用
+if sudo systemctl is-enabled download_and_execute.service; then
+    echo "开机重载服务已启动"
+    echo "正在重启开机重载服务"
+    sudo systemctl restart download_and_execute.service || { echo "无法重启服务"; exit 1; }
+else
+    echo "开机重载服务未启动"
+    echo "正在启动开机重载服务"
+    sudo cp download_and_execute.service /etc/systemd/system || { echo "无法复制文件"; exit 1; }
+    sudo systemctl enable download_and_execute.service || { echo "无法启用服务"; exit 1; }
+    sudo systemctl start download_and_execute.service || { echo "无法启动服务"; exit 1; }
+fi
+
+
 # 运行第一关的mqtt_client.py
 
 # 运行第一关的mqtt_client.py
-nohup sudo $env_dir/bin/python3 smp_coder/mqtt_smp.py > log.txt 2>&1 &
-if [ $? -eq 0 ]; then
-    echo "mqtt_smp.py 启动成功"
-else
-    echo "mqtt_smp.py 启动失败"
-fi
+#nohup sudo $env_dir/bin/python3 smp_coder/mqtt_smp.py > log.txt 2>&1 &
+#if [ $? -eq 0 ]; then
+#    echo "mqtt_smp.py 启动成功"
+#else
+#    echo "mqtt_smp.py 启动失败"
+#fi
 
 # 运行第二关的extur_smp.py
 #nohup sudo $env_dir/bin/python3 smp_coder/extur_smp.py > logex.txt 2>&1 &

test_reload.sh

@@ -0,0 +1,22 @@
+#!/bin/bash
+
+cd /home/pi/smp_pc|| exit
+
+
+# 检测某个文件是否存在
+if [ -f smp_coder/user.txt ]; then
+    echo "User file exists"
+else
+  sudo myenv/bin/python smp_coder/mqtt_smp.py
+fi
+
+if [ $? -eq 0 ]; then
+    echo "MQTT SMP is running"
+else
+    echo "MQTT SMP is not running"
+    exit 1
+fi
+
+sudo myenv/bin/python smp_coder/extur_smp.py
+
+