The shortcomings of voice-activated lights are obvious. When you want to turn on the lights, you need to make a sound, which is not suitable in a quiet home environment. So in addition to voice-activated lights, what are the types of wardrobe lights that sense? How to choose a suitable wardrobe light sensing device?

　　One, gated sensing

　　The door control sensor switch can be used in lighting occasions such as cabinet lights, drawer lights and cupboard pull baskets. Its principle is to use infrared sensor probes to identify the state of the cabinet door. The sensing distance is between 1cm-5cm. When the sensor probe is in front of When there is a shelter (door), the light will automatically go out. When there is no shelter, it will light up when the cabinet door is opened. The door opening light is on and the door closing light is off. There is no need to set a switch independently, which is very convenient.

　　Its advantage is that non-contact electronic switches, cabinets, wine cabinets, showcases, wardrobes, etc. with doors can be used, and the response is more sensitive and fast, and the life span is not limited by the number of switches.

　　2. Human body infrared sensor

　　The principle of human body infrared induction is to detect the moving object in the environment to excite its infrared sensor probe. When someone walks over, the pyroelectric infrared sensor will receive the infrared rays emitted by the human body and release electric charges outwards, triggering the circuit switch.

　　Lights up when people come, and goes out after a delay of 30S±10s after people leave. Realize smart home scenarios.

　　Its advantage is that the sensing distance is farther than the gate control, and it is not restricted by the site layout.

　　The disadvantage is that because it needs to sense infrared temperature, the infrared sensor switch of the human body will shorten the sensing distance and the sensitivity will be correspondingly reduced in the high temperature weather in summer.

　　Three, hand sweep induction

　　The principle of hand-scanning sensing is to detect moving objects based on infrared recognition probes, and use the principle of infrared reflection to automatically detect and receive reflected infrared signals. Its sensing distance is also less than 5cm. Swipe the palm of your hand, turn on the light, swipe the palm again, the light goes out,

　　Its advantage is that it is a non-contact switch. Because it avoids contact, it greatly reduces the risk of electric shock caused by touching the switch with wet hands. It does not need to manually press the switch. Compared with touch sensing, it is more sanitary

　　Fourth, touch sensing

　　Touch the light once to turn it on and then touch it to turn it off without any effort. Compared with the traditional push switch, the touch sensor is more convenient, but compared to other automatic sensor methods, the touch sensor does not seem to be smart enough.

　　Its advantage is that it is accurate and there will be no induction errors.

　　The disadvantage is that it needs to touch the keys, which is not sanitary and convenient.