How to use Java to implement the warehouse temperature and humidity monitoring and alarm functions of the warehouse management system

How to use Java to implement the warehouse temperature and humidity monitoring and alarm functions of the warehouse management system

1. Introduction

With the rapid development of Internet of Things technology, Warehouse temperature and humidity monitoring and alarm functions are becoming more and more important in warehouse management systems. It can help warehouse managers understand the temperature and humidity conditions inside the warehouse at all times and prevent goods from being affected by adverse environments. This article will introduce how to use Java language to implement warehouse temperature and humidity monitoring and alarm functions, and provide specific code examples.

2. Implementation of warehouse temperature and humidity monitoring function

1. Get temperature and humidity sensor data

Use Java language to obtain temperature and humidity sensor data through serial communication . Java provides a corresponding serial communication library. We can communicate with the sensor and read real-time temperature and humidity data by writing code.

Sample code:

import java.util.*;
import gnu.io.*;

public class SerialPortReader implements SerialPortEventListener {
    private SerialPort serialPort;
    
    public void initialize() throws NoSuchPortException, PortInUseException, UnsupportedCommOperationException {
        CommPortIdentifier portId = CommPortIdentifier.getPortIdentifier("COM1");
        serialPort = (SerialPort) portId.open("SerialPortReader", 2000);
        serialPort.setSerialPortParams(9600,SerialPort.DATABITS_8,SerialPort.STOPBITS_1,SerialPort.PARITY_NONE);
        
        InputStream inputStream = serialPort.getInputStream();
        
        serialPort.addEventListener(this);
        serialPort.notifyOnDataAvailable(true);
    }
    
    public void serialEvent(SerialPortEvent event) {
        if (event.getEventType() != SerialPortEvent.DATA_AVAILABLE) {
            return;
        }
        
        byte[] buffer = new byte[1024];
        int numRead;
        
        try {
            while (inputStream.available() > 0) {
                numRead = inputStream.read(buffer);
                String data = new String(buffer, 0, numRead);
                // 处理温湿度数据
                processTemperatureAndHumidityData(data);
            }
        } catch (IOException e) {
            e.printStackTrace();
        }
    }
    
    // 处理温湿度数据
    private void processTemperatureAndHumidityData(String data) {
        // 解析温湿度数据并更新仓库温湿度状态
        // ...
    }
}

2. Update warehouse temperature and humidity status

Based on sensor data, we can write code to update the temperature and humidity status of the warehouse. Here we can use a database to store the temperature and humidity data of the warehouse, and then write the sensor data to the database through Java code.

Sample code:

import java.sql.*;

public class WarehouseStatusUpdater {
    public void updateWarehouseStatus(double temperature, double humidity) {
        // 获取数据库连接
        Connection connection = getConnection();
        
        try {
            // 更新仓库温湿度状态表
            PreparedStatement preparedStatement = connection.prepareStatement("UPDATE warehouse_status SET temperature = ?, humidity = ?");
            preparedStatement.setDouble(1, temperature);
            preparedStatement.setDouble(2, humidity);
            preparedStatement.executeUpdate();
            
            preparedStatement.close();
            connection.close();
        } catch (SQLException e) {
            e.printStackTrace();
        }
    }
    
    // 获取数据库连接
    private Connection getConnection() {
        // 返回数据库连接
        // ...
    }
}

3. Implementation of warehouse temperature and humidity alarm function

1. Monitoring temperature and humidity threshold

Set the warehouse Temperature and humidity threshold, an alarm is triggered when the warehouse temperature or humidity exceeds the threshold. Write Java code to monitor warehouse temperature and humidity data and compare it with thresholds.

Sample code:

public class TemperatureHumidityWatcher {
    public void watchTemperatureHumidity(double temperature, double humidity) {
        double temperatureThreshold = thresholdQuery("temperature");
        double humidityThreshold = thresholdQuery("humidity");
        
        if (temperature > temperatureThreshold) {
            // 温度超出阈值，触发报警
            triggerAlarm("Temperature is too high!");
        } else if (humidity > humidityThreshold) {
            // 湿度超出阈值，触发报警
            triggerAlarm("Humidity is too high!");
        }
    }
    
    // 查询阈值
    private double thresholdQuery(String type) {
        // 查询阈值
        // ...
    }
    
    // 触发报警
    private void triggerAlarm(String message) {
        // 发送报警信息
        // ...
    }
}

2. Send alarm information

When the temperature and humidity in the warehouse exceed the threshold, we can send it via SMS, email or mobile application. Send alarm information to warehouse manager. Write Java code to send alarm information.

Sample code:

public class AlarmSender {
    public void sendAlarm(String message) {
        String phoneNumber = getPhoneNumber();
        
        // 调用短信接口发送报警信息
        sendSMS(phoneNumber, message);
    }
    
    // 获取电话号码
    private String getPhoneNumber() {
        // 返回电话号码
        // ...
    }
    
    // 调用短信接口发送报警信息
    private void sendSMS(String phoneNumber, String message) {
        // 发送短信
        // ...
    }
}

4. Summary

Through the above code examples, we can see that it is not complicated to use Java language to implement warehouse temperature and humidity monitoring and alarm functions. By obtaining sensor data, updating the warehouse temperature and humidity status, monitoring thresholds and triggering alarm information, we can understand the temperature and humidity status of the warehouse in real time and take appropriate measures when the temperature and humidity exceed the threshold.

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