What is an infrared alarm
Infrared alarm is a common security device that triggers alarms by detecting changes in infrared radiation. It is widely used in homes, commercial and industrial places. In recent years, with the growth of smart home and security needs, infrared alarm technology has been continuously upgraded and has become one of the hot topics. This article will introduce in detail the principles, types, application scenarios and market trends of infrared alarms, as well as an analysis of hot topics in the past 10 days.
1. Working principle of infrared alarm

Infrared alarms mainly implement alarm functions through the following two technologies:
| technology type | Principle |
|---|---|
| Passive infrared (PIR) | Detect changes in infrared radiation emitted by the human body or objects, and trigger an alarm when abnormal movement is detected. |
| active infrared | By emitting an infrared beam and receiving the reflected signal, an alarm is triggered when the beam is blocked. |
2. Types of infrared alarms
According to application scenarios and functions, infrared alarms can be divided into the following categories:
| Type | Features | Applicable scenarios |
|---|---|---|
| Wall mounted infrared alarm | Installed on the wall, it has a wide detection range and is suitable for homes and offices. | indoor security |
| Ceiling mounted infrared alarm | Installed on the ceiling, it has strong concealment and is suitable for commercial places. | shopping malls, warehouses |
| Wireless infrared alarm | No wiring required, flexible installation, suitable for temporary security needs. | Temporary place, rental |
3. Application scenarios of infrared alarms
Infrared alarms are widely used in the following scenarios because of their high sensitivity and reliability:
| scene | Application Notes |
|---|---|
| home security | Used for anti-theft alarms in doors, windows, corridors and other areas. |
| business place | Protect valuables from illegal intrusion. |
| industrial environment | Monitor the operating status of equipment to prevent human damage. |
4. Hot topics and content in the past 10 days
The following are the hot topics and hot content related to infrared alarms in the past 10 days:
| topic | heat index | Main content |
|---|---|---|
| Smart home integration | high | The linkage of infrared alarms and smart home systems has become a trend. |
| AI technology application | Middle to high | AI algorithm improves the false alarm rate of infrared alarms. |
| Wireless technology upgrade | in | 5G and LoRa technology promote the development of wireless alarms. |
5. Future trends of infrared alarms
As technology advances, infrared alarms will develop in the following directions:
1.Intelligent: By combining with AI and IoT technology, more accurate alarm and remote control can be achieved.
2.Wireless: Reduce wiring requirements and improve installation convenience.
3.Multifunctional integration: Linked with other security equipment (such as cameras, access control) to form a complete security system.
As an important equipment in the security field, infrared alarms have broad technical and market prospects and will continue to be the focus of attention in the future.
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