Research on real-time smart home environment monitoring technology using PHP

With the advancement of technology, smart homes have become an indispensable part of people's daily lives. If the home environment can be monitored and controlled in real time, energy saving and emission reduction can be achieved while improving home safety. This article will introduce how to use PHP language to implement smart home environment monitoring technology.

1. Real-time monitoring of environmental data

In smart home environment monitoring technology, sensors play a very important role. Various data of the home environment can be collected in real time through sensors, such as temperature, humidity, oxygen concentration, etc. Typical sensors include DHT11, MQ-2, etc. These sensors transmit data via analog or digital signals to a microcontroller, which then sends the data to a server.

2. Data storage and processing

The collected environmental data needs to be stored for subsequent processing and analysis. Data can be stored and managed using PHP's MySQL database. The specific implementation steps are as follows:

(1) Initialize the MySQL database and create a database and data table.

(2) Add fields that need to be recorded in the data table, such as time, temperature, humidity, oxygen concentration, etc.

(3) Connect to the database through PHP and store the collected environmental data in the data table.

(4) In order to allow users to view data conveniently, PHP can be used to call the data in the database and generate charts and other forms.

3. Realize remote control

The monitoring system can not only collect environmental data, but also control the home environment to achieve energy conservation and emission reduction. For example, the air conditioner can be started when the temperature is too high, and the lights can be turned on when the indoor light is insufficient. To realize this function, the switch controller needs to be connected to the network. Many switch controllers now support WiFi network connections, and developers can use PHP to write programs to connect to the switch controller for remote control.

4. Implement the alarm function

In the monitoring system, you can also set the alarm function, which will provide corresponding prompts and warnings when an abnormal environment is detected. For example, when the temperature is too high or the oxygen concentration is too low, a text message or email will be sent to the user through PHP.

5. Summary

Smart home environment monitoring technology can achieve energy conservation and emission reduction while improving home safety. This article implements data collection, data storage and processing, remote control and alarm functions of smart home environment monitoring technology through PHP language. I believe that this technology will become more and more popular in the future.

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