Infrared sensor is a measurement system with infrared as medium, which mainly uses the physical effect produced by the interaction of infrared radiation and matter. A current sensor is a detection device that can sense the measured current information and convert the measured information into electrical signals that meet certain standard requirements or other forms of information output according to certain rules.

The so-called smart home is actually the concept of the entire home system, which is composed of various large and small intelligent sensing devices. Let's take a look at the AN7125 sensors commonly used in smart homes.

1. Temperature and humidity sensor

The temperature and humidity sensor can detect the temperature and humidity in the air through a certain detection device, and convert it into an electrical signal or other required information output form according to certain rules. It is widely used and temperature and humidity sensors will be used wherever temperature changes and water vapor content in the gas need to be monitored. It is not only related to the quality of the home environment, but also closely related to human health. It can be said that it is an important part of smart home.

2. Infrared sensor

Infrared sensor is a measurement system with infrared as medium, which mainly uses the physical effect produced by the interaction of infrared radiation and matter. In the smart home industry, in most cases, it uses the electrical physical effects presented by this interaction to turn on and off electrical devices with infrared switches. Infrared sensors have played a huge role in the practice of the smart home industry. With the improvement of technologies such as detection equipment, there will also be more performance and sensitivity in the future, laying a solid foundation for higher intelligence.

3. Current sensor

A current sensor is a detection device that can sense the measured current information and convert the measured information into electrical signals that meet certain standard requirements or other forms of information output according to certain rules. It can automatically detect and display current, and has automatic protection function and more advanced intelligent control. This sensor detection, sensor sampling and sensor protection technology is also widely used in the smart home industry.

4. PM2.5 sensor

In recent years, people have paid more and more attention to smog, and indoor PM2.5 content has also become an important indicator affecting indoor air quality. With the improvement of people's awareness of environmental protection and health, the monitoring of PM2.5 in smart home systems has also become an indispensable work.

5. Door magnetic sensor

Magnetic door sensors can be used to detect whether doors, windows, drawers, etc. have been opened or moved illegally. The sensor is generally installed on doors or windows, senses the opening and closing of doors and windows, and is used in conjunction with other smart security products to prevent external intrusions. It is composed of two parts of the door magnetic body and the permanent magnet. After a certain distance, the door magnetic sensor will send a radio signal to the system terminal to alarm.

6. Gas concentration sensor

A gas sensor is a device that converts information such as gas composition and concentration into information such as personnel, instruments, and computers, and is also an important detection method for smart homes. In family life, combustible gas and polluting gas are important factors that affect people's health. In smart homes, dangerous gases can be analyzed through gas concentration sensors, and targeted control strategies can be adopted.