Comparison and selection of radar microwave body sensing switch and light controlled body sensing switch

In the era of continuous development of modern technology, the human body sensor switch has become an indispensable part of our lives. Among them, radar microwave body sensing switch and light controlled body sensing switch are two common types. This article will provide a detailed comparison of the two induction switches to help you make an informed decision when choosing.

1. Radar microwave human body induction switch

Radar microwave human sensing switch is a non-contact sensor switch, its working principle is to use radar microwave to detect human body. When the human body enters the radar microwave sensing range, the sensor will receive the reflected signal, which triggers the switch action.

Advantages:

Wide detection range: radar microwave induction range is large, can be detected in a larger space range, making the switch more sensitive.

High detection accuracy: Because the radar microwave can penetrate obstacles such as clothing and walls, it can accurately detect the human body and avoid false triggering.

Strong anti-interference ability: radar microwave frequency is high, not easy to be affected by electromagnetic interference in the environment, with good stability.

Cons:

The price is higher: the price of radar microwave human induction switch is higher than that of optical human induction switch.

High requirements for the environment: due to the strong penetration ability of radar microwave, it is susceptible to interference from other objects in the environment, and the requirements for the environment are higher.

Two, light-controlled human body induction switch

The light-controlled human sensor switch is a common contact sensor switch, and its working principle is to trigger the switch action by sensing the temperature and infrared of the human body. When the human body enters the sensing range of the photosensitive sensor, the sensor will receive the infrared signal from the human body, which triggers the switch action.

Advantages:

Moderate price: The price of the light-controlled human sensor switch is relatively moderate, which is suitable for the needs of the majority of consumers.

Strong adaptability: Because the light-controlled human body sensor switch triggers the switch action by sensing the temperature and infrared of the human body, it will not be interfered by other objects in the environment, and is suitable for a variety of different environments.

Energy saving and environmental protection: The light-controlled human body induction switch has low energy consumption, does not require too much power support, and has the characteristics of energy saving and environmental protection.

Cons:

Limited detection range: The detection range of the photosensor is relatively small, and it needs to be in a close distance to effectively detect the human body.

High requirements for the environment: Because the light-controlled human body sensor switch triggers the switch action by sensing the temperature of the human body and infrared, it is susceptible to interference from other objects in the environment, and has high requirements for the environment. For example, a switch may be triggered by mistake when it is near a place with a large temperature change, such as a window or air conditioner.

To sum up, the radar microwave body sensor switch and the optical body sensor switch have advantages and disadvantages, which need to be selected according to the actual demand. If you need to detect in a large range and require high accuracy, you can choose the radar microwave body sensor switch; If you need an affordable and adaptable induction switch, you can choose the light-controlled human induction switch. It should be noted that no matter what type of induction switch is selected, it should be selected according to the specific use environment and needs to avoid unnecessary false triggering and waste.