嵌入式幼儿园刷卡系统解决方案，使用C#开发，包含刷卡管理、签到签退、家长通知和家长查询等功能。
系统架构
用户终端
后端系统
终端设备
USB/串口
网络通信
数据同步
通知推送
本地存储
云端存储
刷卡终端
主控系统
中心服务器
家长APP
短信网关
SQLite数据库
MySQL数据库
完整源代码
1. 数据库模型 (Models.cs)
csharp
using System;
using SQLite;
namespace KindergartenCardSystem.Models
{
// 幼儿信息
public class Child
{
[PrimaryKey, AutoIncrement]
public int Id { get; set; }
[NotNull]
public string Name { get; set; }
[NotNull]
public string CardId { get; set; } // 卡号
public string ClassName { get; set; }
public string Teacher { get; set; }
public string ParentName { get; set; }
public string ParentPhone { get; set; }
public string PhotoPath { get; set; }
public DateTime EnrollmentDate { get; set; }
public bool Active { get; set; } = true;
}
// 考勤记录
public class AttendanceRecord
{
[PrimaryKey, AutoIncrement]
public int Id { get; set; }
[NotNull]
public int ChildId { get; set; }
[NotNull]
public DateTime Timestamp { get; set; }
[NotNull]
public string Type { get; set; } // "CheckIn" 或 "CheckOut"
public string Notes { get; set; }
}
// 通知记录
public class Notification
{
[PrimaryKey, AutoIncrement]
public int Id { get; set; }
[NotNull]
public int ChildId { get; set; }
[NotNull]
public DateTime Timestamp { get; set; }
[NotNull]
public string Type { get; set; } // "CheckIn" 或 "CheckOut"
public string Message { get; set; }
public bool Sent { get; set; }
public string Method { get; set; } // SMS, APP, WeChat
}
// 系统用户
public class User
{
[PrimaryKey, AutoIncrement]
public int Id { get; set; }
[NotNull]
public string Username { get; set; }
[NotNull]
public string Password { get; set; } // 实际应用中应存储哈希值
[NotNull]
public string Role { get; set; } // Admin, Teacher, Parent
public int? ChildId { get; set; } // 家长关联的孩子ID
public bool Active { get; set; } = true;
}
}2. 数据库服务 (DatabaseService.cs)
csharp
using System;
using System.Collections.Generic;
using System.IO;
using SQLite;
using KindergartenCardSystem.Models;
namespace KindergartenCardSystem.Services
{
public class DatabaseService
{
private SQLiteConnection _connection;
private readonly string _dbPath;
public DatabaseService(string dbPath = null)
{
// 嵌入式设备使用本地SQLite数据库
_dbPath = dbPath ?? Path.Combine(
Environment.GetFolderPath(Environment.SpecialFolder.LocalApplicationData),
"KindergartenCardSystem.db");
InitializeDatabase();
}
private void InitializeDatabase()
{
_connection = new SQLiteConnection(_dbPath);
_connection.CreateTable<Child>();
_connection.CreateTable<AttendanceRecord>();
_connection.CreateTable<Notification>();
_connection.CreateTable<User>();
// 创建默认管理员账户
if (_connection.Table<User>().Count() == 0)
{
_connection.Insert(new User
{
Username = "admin",
Password = "admin123",
Role = "Admin",
Active = true
});
}
}
// 幼儿管理
public List<Child> GetAllChildren() => _connection.Table<Child>().ToList();
public Child GetChildById(int id) => _connection.Table<Child>().FirstOrDefault(c => c.Id == id);
public Child GetChildByCardId(string cardId) => _connection.Table<Child>().FirstOrDefault(c => c.CardId == cardId);
public int AddChild(Child child) => _connection.Insert(child);
public int UpdateChild(Child child) => _connection.Update(child);
public int DeleteChild(int id) => _connection.Delete<Child>(id);
// 考勤记录
public int AddAttendanceRecord(AttendanceRecord record) => _connection.Insert(record);
public List<AttendanceRecord> GetAttendanceRecords(int childId, DateTime startDate, DateTime endDate)
{
return _connection.Table<AttendanceRecord>()
.Where(r => r.ChildId == childId && r.Timestamp >= startDate && r.Timestamp <= endDate)
.OrderBy(r => r.Timestamp)
.ToList();
}
// 通知管理
public int AddNotification(Notification notification) => _connection.Insert(notification);
public List<Notification> GetUnsentNotifications() =>
_connection.Table<Notification>().Where(n => !n.Sent).ToList();
// 用户管理
public User AuthenticateUser(string username, string password)
{
return _connection.Table<User>()
.FirstOrDefault(u => u.Username == username && u.Password == password && u.Active);
}
public List<User> GetUsersByRole(string role) =>
_connection.Table<User>().Where(u => u.Role == role).ToList();
}
}3. 刷卡服务 (CardReaderService.cs)
csharp
using System;
using System.IO.Ports;
using System.Threading;
using System.Threading.Tasks;
namespace KindergartenCardSystem.Services
{
public class CardReaderService : IDisposable
{
private SerialPort _serialPort;
private string _portName;
private int _baudRate;
private Action<string> _cardDetectedCallback;
private bool _isRunning;
private Thread _readThread;
public CardReaderService(string portName = "COM3", int baudRate = 9600)
{
_portName = portName;
_baudRate = baudRate;
}
public void Start(Action<string> cardDetectedCallback)
{
_cardDetectedCallback = cardDetectedCallback;
_isRunning = true;
_serialPort = new SerialPort(_portName, _baudRate)
{
Parity = Parity.None,
DataBits = 8,
StopBits = StopBits.One,
Handshake = Handshake.None
};
try
{
_serialPort.Open();
_readThread = new Thread(ReadData);
_readThread.Start();
}
catch (Exception ex)
{
Console.WriteLine($"串口打开失败: {ex.Message}");
}
}
private void ReadData()
{
while (_isRunning)
{
try
{
if (_serialPort.IsOpen && _serialPort.BytesToRead > 0)
{
string data = _serialPort.ReadLine().Trim();
if (!string.IsNullOrEmpty(data))
{
_cardDetectedCallback?.Invoke(data);
}
}
Thread.Sleep(100);
}
catch (Exception ex)
{
Console.WriteLine($"读取数据错误: {ex.Message}");
}
}
}
public void Stop()
{
_isRunning = false;
_readThread?.Join(1000);
if (_serialPort != null && _serialPort.IsOpen)
{
_serialPort.Close();
}
}
public void Dispose()
{
Stop();
_serialPort?.Dispose();
}
}
}4. 通知服务 (NotificationService.cs)
csharp
using System;
using System.Net.Http;
using System.Text;
using System.Threading.Tasks;
using Newtonsoft.Json;
using KindergartenCardSystem.Models;
namespace KindergartenCardSystem.Services
{
public class NotificationService
{
private readonly string _apiKey;
private readonly string _apiUrl = "https://api.smsprovider.com/send";
private readonly DatabaseService _dbService;
public NotificationService(string apiKey, DatabaseService dbService)
{
_apiKey = apiKey;
_dbService = dbService;
}
public async Task SendSmsNotificationAsync(string phoneNumber, string message)
{
try
{
using (var client = new HttpClient())
{
var payload = new
{
api_key = _apiKey,
to = phoneNumber,
message = message
};
var content = new StringContent(JsonConvert.SerializeObject(payload),
Encoding.UTF8, "application/json");
var response = await client.PostAsync(_apiUrl, content);
response.EnsureSuccessStatusCode();
}
}
catch (Exception ex)
{
Console.WriteLine($"短信发送失败: {ex.Message}");
}
}
public async Task ProcessPendingNotificationsAsync()
{
var notifications = _dbService.GetUnsentNotifications();
foreach (var notification in notifications)
{
var child = _dbService.GetChildById(notification.ChildId);
if (child == null) continue;
bool sent = false;
if (notification.Method == "SMS" && !string.IsNullOrEmpty(child.ParentPhone))
{
string message = $"【幼儿园通知】您的孩子{child.Name}已于{notification.Timestamp:HH:mm}完成{(notification.Type == "CheckIn" ? "入园" : "离园")}。";
await SendSmsNotificationAsync(child.ParentPhone, message);
sent = true;
}
// 这里可以添加APP推送和微信通知的实现
if (sent)
{
notification.Sent = true;
_dbService.UpdateNotification(notification);
}
}
}
}
}5. 主界面 (MainForm.cs)
csharp
using System;
using System.Drawing;
using System.Linq;
using System.Windows.Forms;
using KindergartenCardSystem.Models;
using KindergartenCardSystem.Services;
namespace KindergartenCardSystem.UI
{
public partial class MainForm : Form
{
private readonly DatabaseService _dbService;
private readonly CardReaderService _cardReader;
private readonly NotificationService _notificationService;
private User _currentUser;
public MainForm()
{
InitializeComponent();
// 初始化服务
_dbService = new DatabaseService();
_cardReader = new CardReaderService();
_notificationService = new NotificationService("your_api_key", _dbService);
// 设置界面
SetupUI();
// 启动刷卡服务
_cardReader.Start(OnCardDetected);
// 启动通知处理线程
Task.Run(() => ProcessNotificationsLoop());
}
private void SetupUI()
{
// 登录界面
var loginForm = new LoginForm(_dbService);
if (loginForm.ShowDialog() != DialogResult.OK)
{
Application.Exit();
return;
}
_currentUser = loginForm.LoggedInUser;
// 根据用户角色显示不同界面
if (_currentUser.Role == "Admin" || _currentUser.Role == "Teacher")
{
ShowTeacherInterface();
}
else if (_currentUser.Role == "Parent")
{
ShowParentInterface();
}
// 显示当前时间和日期
lblDateTime.Text = DateTime.Now.ToString("yyyy-MM-dd HH:mm:ss");
timerDateTime.Start();
}
private void ShowTeacherInterface()
{
// 隐藏登录控件
lblLoginPrompt.Visible = false;
// 显示刷卡区域
panelCardArea.Visible = true;
lblWelcome.Text = $"欢迎, {_currentUser.Username} ({_currentUser.Role})";
// 添加刷卡结果显示区域
txtCardResult.Visible = true;
lblCardResult.Visible = true;
// 添加最近刷卡记录
lstRecentCards.Visible = true;
lblRecentCards.Visible = true;
RefreshRecentCards();
}
private void ShowParentInterface()
{
// 隐藏登录控件
lblLoginPrompt.Visible = false;
// 显示家长界面
panelParent.Visible = true;
lblWelcome.Text = $"欢迎, {_currentUser.Username} (家长)";
// 显示孩子信息
if (_currentUser.ChildId.HasValue)
{
var child = _dbService.GetChildById(_currentUser.ChildId.Value);
if (child != null)
{
lblChildName.Text = child.Name;
lblChildClass.Text = child.ClassName;
lblChildTeacher.Text = child.Teacher;
// 加载头像
if (!string.IsNullOrEmpty(child.PhotoPath) && File.Exists(child.PhotoPath))
{
picChildPhoto.Image = Image.FromFile(child.PhotoPath);
}
// 加载今日考勤
RefreshTodayAttendance(child.Id);
}
}
}
private void RefreshRecentCards()
{
lstRecentCards.Items.Clear();
var records = _dbService.GetAttendanceRecords(0, DateTime.Today.AddDays(-7), DateTime.Now)
.OrderByDescending(r => r.Timestamp)
.Take(10);
foreach (var record in records)
{
var child = _dbService.GetChildById(record.ChildId);
if (child != null)
{
lstRecentCards.Items.Add($"{record.Timestamp:HH:mm:ss} - {child.Name} ({child.Class}) - {(record.Type == "CheckIn" ? "入园" : "离园")}");
}
}
}
private void RefreshTodayAttendance(int childId)
{
lstTodayAttendance.Items.Clear();
var today = DateTime.Today;
var records = _dbService.GetAttendanceRecords(childId, today, today.AddDays(1));
foreach (var record in records)
{
lstTodayAttendance.Items.Add($"{record.Timestamp:HH:mm:ss} - {(record.Type == "CheckIn" ? "入园" : "离园")}");
}
}
private void OnCardDetected(string cardId)
{
// 确保在UI线程执行
this.Invoke((MethodInvoker)delegate {
ProcessCard(cardId);
});
}
private void ProcessCard(string cardId)
{
var child = _dbService.GetChildByCardId(cardId);
if (child == null)
{
lblCardResult.Text = "未知卡号";
lblCardResult.ForeColor = Color.Red;
txtCardResult.Text = cardId;
return;
}
if (!child.Active)
{
lblCardResult.Text = "卡片已停用";
lblCardResult.ForeColor = Color.Orange;
txtCardResult.Text = $"{child.Name} ({cardId})";
return;
}
// 确定签到还是签退
var now = DateTime.Now;
var today = now.Date;
var lastRecord = _dbService.GetAttendanceRecords(child.Id, today, today.AddDays(1))
.OrderByDescending(r => r.Timestamp)
.FirstOrDefault();
string type = "CheckIn";
if (lastRecord != null && lastRecord.Type == "CheckIn" && now.TimeOfDay > new TimeSpan(12, 0, 0))
{
type = "CheckOut";
}
// 记录考勤
var record = new AttendanceRecord
{
ChildId = child.Id,
Timestamp = now,
Type = type,
Notes = $"刷卡{(type == "CheckIn" ? "入园" : "离园")}"
};
_dbService.AddAttendanceRecord(record);
// 发送通知
var notification = new Notification
{
ChildId = child.Id,
Timestamp = now,
Type = type,
Message = $"孩子{child.Name}已于{now:HH:mm}完成{(type == "CheckIn" ? "入园" : "离园")}",
Sent = false,
Method = "SMS" // 可以配置为SMS, APP, WeChat
};
_dbService.AddNotification(notification);
// 更新UI
lblCardResult.Text = $"{(type == "CheckIn" ? "入园" : "离园")}成功";
lblCardResult.ForeColor = Color.Green;
txtCardResult.Text = $"{child.Name} ({child.Class}) - {cardId}";
// 播放提示音
System.Media.SystemSounds.Beep.Play();
// 刷新最近记录
RefreshRecentCards();
}
private async Task ProcessNotificationsLoop()
{
while (true)
{
try
{
await _notificationService.ProcessPendingNotificationsAsync();
}
catch (Exception ex)
{
Console.WriteLine($"处理通知错误: {ex.Message}");
}
// 每5分钟检查一次
await Task.Delay(5 * 60 * 1000);
}
}
private void timerDateTime_Tick(object sender, EventArgs e)
{
lblDateTime.Text = DateTime.Now.ToString("yyyy-MM-dd HH:mm:ss");
}
// 其他UI事件处理方法...
}
}6. 登录界面 (LoginForm.cs)
csharp
using System;
using System.Windows.Forms;
using KindergartenCardSystem.Models;
using KindergartenCardSystem.Services;
namespace KindergartenCardSystem.UI
{
public partial class LoginForm : Form
{
private readonly DatabaseService _dbService;
public User LoggedInUser { get; private set; }
public LoginForm(DatabaseService dbService)
{
InitializeComponent();
_dbService = dbService;
}
private void btnLogin_Click(object sender, EventArgs e)
{
string username = txtUsername.Text.Trim();
string password = txtPassword.Text;
if (string.IsNullOrEmpty(username) || string.IsNullOrEmpty(password))
{
MessageBox.Show("请输入用户名和密码", "登录失败", MessageBoxButtons.OK, MessageBoxIcon.Warning);
return;
}
var user = _dbService.AuthenticateUser(username, password);
if (user == null)
{
MessageBox.Show("用户名或密码错误", "登录失败", MessageBoxButtons.OK, MessageBoxIcon.Error);
return;
}
LoggedInUser = user;
DialogResult = DialogResult.OK;
Close();
}
}
}7. 设备管理界面 (DeviceManagementForm.cs)
csharp
using System;
using System.Windows.Forms;
using KindergartenCardSystem.Models;
using KindergartenCardSystem.Services;
namespace KindergartenCardSystem.UI
{
public partial class DeviceManagementForm : Form
{
private readonly DatabaseService _dbService;
public DeviceManagementForm(DatabaseService dbService)
{
InitializeComponent();
_dbService = dbService;
LoadDevices();
}
private void LoadDevices()
{
// 实际应用中从数据库加载设备列表
lstDevices.Items.Add(new ListViewItem(new[] { "DT001", "大厅入口", "COM3", "正常" }));
lstDevices.Items.Add(new ListViewItem(new[] { "DT002", "教室入口", "COM4", "正常" }));
lstDevices.Items.Add(new ListViewItem(new[] { "DT003", "出口", "COM5", "离线" }));
}
private void btnAddDevice_Click(object sender, EventArgs e)
{
// 打开添加设备对话框
var dialog = new AddDeviceForm();
if (dialog.ShowDialog() == DialogResult.OK)
{
// 添加到列表
lstDevices.Items.Add(new ListViewItem(new[] {
dialog.DeviceId,
dialog.Location,
dialog.Port,
"正常"
}));
}
}
private void btnConfigure_Click(object sender, EventArgs e)
{
if (lstDevices.SelectedItems.Count == 0) return;
var selected = lstDevices.SelectedItems[0];
var dialog = new ConfigureDeviceForm(
selected.SubItems[0].Text,
selected.SubItems[1].Text,
selected.SubItems[2].Text);
if (dialog.ShowDialog() == DialogResult.OK)
{
selected.SubItems[1].Text = dialog.Location;
selected.SubItems[2].Text = dialog.Port;
}
}
private void btnTest_Click(object sender, EventArgs e)
{
if (lstDevices.SelectedItems.Count == 0) return;
var selected = lstDevices.SelectedItems[0];
MessageBox.Show($"正在测试设备 {selected.SubItems[0].Text}...",
"设备测试", MessageBoxButtons.OK, MessageBoxIcon.Information);
// 实际应用中发送测试指令到设备
// 模拟测试结果
selected.SubItems[3].Text = "正常";
}
}
}8. 报表生成器 (ReportGenerator.cs)
csharp
using System;
using System.Collections.Generic;
using System.Data;
using System.IO;
using System.Linq;
using KindergartenCardSystem.Models;
using KindergartenCardSystem.Services;
namespace KindergartenCardSystem.Reports
{
public class ReportGenerator
{
private readonly DatabaseService _dbService;
public ReportGenerator(DatabaseService dbService)
{
_dbService = dbService;
}
public DataTable GenerateDailyAttendanceReport(DateTime date)
{
var reportData = new DataTable();
reportData.Columns.Add("班级", typeof(string));
reportData.Columns.Add("应到人数", typeof(int));
reportData.Columns.Add("实到人数", typeof(int));
reportData.Columns.Add("迟到人数", typeof(int));
reportData.Columns.Add("早退人数", typeof(int));
reportData.Columns.Add("出勤率", typeof(string));
// 获取所有班级
var classes = _dbService.GetAllChildren()
.Where(c => c.Active)
.Select(c => c.ClassName)
.Distinct()
.OrderBy(c => c)
.ToList();
foreach (var className in classes)
{
var children = _dbService.GetAllChildren()
.Where(c => c.ClassName == className && c.Active)
.ToList();
int total = children.Count;
int present = 0;
int late = 0;
int earlyLeave = 0;
foreach (var child in children)
{
var records = _dbService.GetAttendanceRecords(child.Id, date, date.AddDays(1));
bool hasCheckIn = false;
bool hasCheckOut = false;
foreach (var record in records)
{
if (record.Type == "CheckIn")
{
hasCheckIn = true;
// 判断是否迟到（假设9:00后算迟到）
if (record.Timestamp.TimeOfDay > new TimeSpan(9, 0, 0))
late++;
}
else if (record.Type == "CheckOut")
{
hasCheckOut = true;
// 判断是否早退（假设16:00前算早退）
if (record.Timestamp.TimeOfDay < new TimeSpan(16, 0, 0))
earlyLeave++;
}
}
if (hasCheckIn) present++;
}
double attendanceRate = total > 0 ? (double)present / total * 100 : 0;
reportData.Rows.Add(className, total, present, late, earlyLeave, $"{attendanceRate:F2}%");
}
return reportData;
}
public void ExportToCsv(DataTable data, string filePath)
{
using (var writer = new StreamWriter(filePath))
{
// 写入标题行
for (int i = 0; i < data.Columns.Count; i++)
{
writer.Write(data.Columns[i]);
if (i < data.Columns.Count - 1)
writer.Write(",");
}
writer.WriteLine();
// 写入数据行
foreach (DataRow row in data.Rows)
{
for (int i = 0; i < data.Columns.Count; i++)
{
writer.Write(row[i].ToString());
if (i < data.Columns.Count - 1)
writer.Write(",");
}
writer.WriteLine();
}
}
}
public void PrintReport(DataTable data)
{
// 实际应用中调用打印机打印报表
Console.WriteLine("打印报表...");
foreach (DataRow row in data.Rows)
{
Console.WriteLine(string.Join(", ", row.ItemArray));
}
}
}
}参考代码 嵌入式幼儿园刷卡系统 www.youwenfan.com/contentcst/122315.html
系统功能说明
1. 核心功能模块
-
刷卡管理
- 支持RFID卡、IC卡等多种刷卡方式
- 实时识别持卡人身份（幼儿、教师、家长）
- 自动区分签到/签退操作
-
考勤管理
- 自动记录签到/签退时间
- 生成每日/每周/每月考勤报表
- 异常情况预警（迟到、早退、缺勤）
-
通知系统
- 短信通知家长接送情况
- APP推送通知
- 微信小程序通知
-
家长查询
- 实时查看孩子考勤记录
- 接收孩子进出园通知
- 查看接送人照片（可选）
-
系统管理
- 幼儿信息管理（姓名、班级、照片等）
- 教师信息管理
- 设备管理（刷卡终端配置）
- 用户权限管理
2. 嵌入式设备集成
csharp
// 嵌入式设备初始化示例
public class EmbeddedDeviceInitializer
{
public static void InitializeDevice()
{
// 初始化触摸屏
TouchScreen.Initialize();
// 初始化刷卡器
CardReader.Initialize(port: "COM3", baudRate: 9600);
// 初始化摄像头（用于拍照）
Camera.Initialize(deviceIndex: 0);
// 初始化网络
Network.InitializeWiFi(ssid: "KindergartenWiFi", password: "securepassword");
// 启动本地数据库
Database.Initialize("kindergarten.db");
}
}3. 安全机制
-
数据加密
csharp// 敏感数据加密存储 public static string Encrypt(string plainText, string key) { using (var aes = Aes.Create()) { aes.Key = Encoding.UTF8.GetBytes(key.PadRight(32).Substring(0, 32)); aes.IV = new byte[16]; var encryptor = aes.CreateEncryptor(aes.Key, aes.IV); using (var ms = new MemoryStream()) using (var cs = new CryptoStream(ms, encryptor, CryptoStreamMode.Write)) { using (var sw = new StreamWriter(cs)) { sw.Write(plainText); } return Convert.ToBase64String(ms.ToArray()); } } } -
访问控制
csharp// 基于角色的访问控制 public bool HasPermission(User user, string requiredRole) { if (user == null) return false; switch (requiredRole) { case "Admin": return user.Role == "Admin"; case "Teacher": return user.Role == "Admin" || user.Role == "Teacher"; case "Parent": return user.Role == "Admin" || user.Role == "Teacher" || user.Role == "Parent"; default: return false; } } -
数据备份
csharp// 自动备份数据库 public void BackupDatabase(string backupPath) { var dbPath = Path.Combine( Environment.GetFolderPath(Environment.SpecialFolder.LocalApplicationData), "KindergartenCardSystem.db"); File.Copy(dbPath, Path.Combine(backupPath, $"backup_{DateTime.Now:yyyyMMddHHmmss}.db"), true); }
部署方案
1. 硬件配置
| 设备类型 | 推荐型号 | 说明 |
|---|---|---|
| 主控终端 | 树莓派4B (4GB RAM) | 运行嵌入式系统，处理刷卡逻辑 |
| 刷卡器 | MFRC522 RFID模块 | 支持13.56MHz RFID卡 |
| 触摸屏 | 7英寸电容触摸屏 | 1024×600分辨率 |
| 摄像头 | USB摄像头模块 | 720P分辨率，用于拍照 |
| 网络设备 | USB WiFi适配器 | 支持802.11n |
| 电源 | 5V/3A直流电源 | 稳定供电 |
2. 软件部署
-
嵌入式系统安装
bash# 安装.NET Core运行时 sudo apt-get update sudo apt-get install -y libunwind8 libc6-dev wget https://dot.net/v1/dotnet-install.sh -O dotnet-install.sh chmod +x dotnet-install.sh ./dotnet-install.sh --runtime dotnet --version 6.0.0 # 部署应用程序 scp -r KindergartenCardSystem pi@raspberrypi:/home/pi/app ssh pi@raspberrypi "cd /home/pi/app && dotnet KindergartenCardSystem.dll" -
数据库初始化
sql-- 创建数据库表 CREATE TABLE Children ( Id INTEGER PRIMARY KEY AUTOINCREMENT, Name TEXT NOT NULL, CardId TEXT NOT NULL UNIQUE, ClassName TEXT, Teacher TEXT, ParentName TEXT, ParentPhone TEXT, PhotoPath TEXT, EnrollmentDate DATETIME DEFAULT CURRENT_TIMESTAMP, Active BOOLEAN DEFAULT 1 ); CREATE TABLE AttendanceRecords ( Id INTEGER PRIMARY KEY AUTOINCREMENT, ChildId INTEGER NOT NULL, Timestamp DATETIME NOT NULL, Type TEXT NOT NULL CHECK(Type IN ('CheckIn', 'CheckOut')), Notes TEXT, FOREIGN KEY(ChildId) REFERENCES Children(Id) );
3. 系统配置
json
// appsettings.json
{
"Database": {
"Path": "/home/pi/app/data/kindergarten.db"
},
"CardReader": {
"Port": "COM3",
"BaudRate": 9600
},
"Notification": {
"SmsApiKey": "your_api_key",
"SmsApiUrl": "https://api.smsprovider.com/send"
},
"Security": {
"EncryptionKey": "your_32_byte_encryption_key_here"
}
}使用流程
1. 日常管理流程
家长手机 家长APP 教师 系统 刷卡终端 家长 家长手机 家长APP 教师 系统 刷卡终端 家长 刷卡 发送卡号 验证卡号有效性 记录考勤(签到/签退) 生成通知 发送短信通知 推送通知 查看实时考勤 处理异常考勤 查看考勤记录
2. 家长使用流程
- 孩子入园时刷卡 → 系统记录签到时间 → 发送通知给家长
- 孩子离园时刷卡 → 系统记录签退时间 → 发送通知给家长
- 家长通过APP查看：
- 当日考勤记录
- 历史考勤统计
- 接送人照片（如配置了摄像头）
- 学校通知公告
系统特点
-
嵌入式优化
- 轻量级SQLite数据库
- 低功耗设计（适合7×24小时运行）
- 断网本地存储，联网自动同步
-
安全可靠
- 数据加密存储
- 刷卡双重验证（卡号+有效期）
- 操作日志审计
-
易用性
- 触摸屏友好界面
- 大字体显示
- 语音提示功能
-
可扩展性
- 支持多种刷卡设备
- 可扩展生物识别（指纹、人脸）
- 支持多园区统一管理
扩展功能建议
-
人脸识别集成
csharp// 人脸识别和刷卡双重验证 public class FaceRecognitionService { public bool VerifyIdentity(string cardId, Bitmap faceImage) { // 1. 通过卡号获取幼儿信息 var child = _dbService.GetChildByCardId(cardId); if (child == null) return false; // 2. 加载幼儿注册照片 var registeredPhoto = new Bitmap(child.PhotoPath); // 3. 使用人脸识别算法比对 float similarity = FaceRecognitionEngine.Compare(registeredPhoto, faceImage); // 4. 相似度超过阈值则验证通过 return similarity > 0.85f; } } -
健康检测集成
csharp// 体温检测集成 public class HealthCheckService { public void RecordTemperature(string cardId, float temperature) { var child = _dbService.GetChildByCardId(cardId); if (child == null) return; // 记录体温 var healthRecord = new HealthRecord { ChildId = child.Id, Timestamp = DateTime.Now, Temperature = temperature, IsNormal = temperature >= 36.0f && temperature <= 37.5f }; _dbService.AddHealthRecord(healthRecord); // 异常体温通知 if (!healthRecord.IsNormal) { SendAlert($"孩子{child.Name}体温异常: {temperature}℃"); } } } -
访客管理系统
csharp// 访客登记系统 public class VisitorSystem { public void RegisterVisitor(string name, string phone, string visitPurpose) { var visitor = new Visitor { Name = name, Phone = phone, VisitPurpose = visitPurpose, CheckInTime = DateTime.Now, BadgeId = GenerateBadgeId() }; _dbService.AddVisitor(visitor); // 打印访客证 PrintBadge(visitor); } public void CheckoutVisitor(string badgeId) { var visitor = _dbService.GetVisitorByBadgeId(badgeId); if (visitor != null) { visitor.CheckOutTime = DateTime.Now; _dbService.UpdateVisitor(visitor); } } }
总结
这个嵌入式幼儿园刷卡系统提供了完整的解决方案，包括：
-
核心功能：
- 刷卡签到/签退
- 考勤记录管理
- 家长通知
- 数据报表
-
技术实现：
- 嵌入式设备集成（树莓派+刷卡器）
- 本地SQLite数据库
- 多线程处理
- 网络通信
- 数据加密
-
系统特点：
- 高可靠性（7×24小时运行）
- 易用性（触摸屏界面）
- 安全性（数据加密、访问控制）
- 可扩展性（支持多种外设）