Low power radar module 24GHz millimeter wave intelligent micro-motion control light, each of us may have similar lazy experience in school days. When we got home, we closed the door and began to herd the sheep. When we heard footsteps approaching, we immediately sat back in our seats and pretended to study hard. In fact, most parents are often in and out of the child's bedroom, because they are concerned about the day's homework is all finished, when will be finished; Whether staying up late to study or play games leads to lack of sleep, affecting children's health, etc.
Recently, low power radar module 24GHz millimeter wave intelligent learning desk lamp has become popular on the Internet. In addition to the functions of traditional eye protection lights, a smart screen has been added. Front camera to watch children communicate with each other, overhead camera to shoot homework, improve the efficiency of homework check upload, increase the parents to control the situation of children, sitting at the desk to study or run to play. However, such a move not only has the potential for criminals to steal personal videos, but also increases the psychological burden of children "being monitored from time to time". In fact, today's technology can provide two complete solutions to low power radar modules for 24GHz millimeter wave fretting detection.
In the field of traditional intelligent lighting, infrared and low frequency radar has been widely used to realize the function of environmental protection and energy saving. But because of their own physical limitations, these solutions can't pick up tiny movements. Today, low power radar module 24GHz millimeter wave based on silicon jay micromotion detection technology provides a good solution, due to its high carrier frequency, has a good recognition ability for the reflected signal of micromotion. From the video, we can see that the 24GHz millimeter wave radar based on the micro motion detection technology can detect the finger twitching, writing and other tiny movements of people under the light, even through the light board.
It can also be seen from the video that the radar is only triggered when the person enters the range under the light, and not outside the range. In addition, the 24GHz band is the global ISM band, so there is no violation of the frequency band. In addition, communication bands such as 24GHz and wifi do not interfere with each other.
Therefore, after learning table lamp equipped with low power radar module 24GHz millimeter wave based on silicon Jie micro technology, the radar can detect children's small movements. When the child leaves, it automatically goes off, saving energy. Parents don't have to go in and out of their children's rooms more than once or use "video surveillance." Of course, they don't rule out checking a late sleeper once in a while.
Characteristics of low power radar module 24GHz millimeter wave induction switch, radar induction switch is also known as induction switch, is made using the Doppler principle of electromagnetic wave. We know that any wave has the property of reflection. When a wave of a certain frequency hits the barrier, some of the wave is reflected back. If the barrier is stationary, the wavelength of the reflected wave is constant. If the blocker moves towards the source, the wavelength of the reflected wave is shorter than that of the source. If the barrier moves away from the source of the wave, the wavelength of the reflected wave is longer than that of the source. Sensing is the change of reflected waves to know whether a moving object is near or far away. Therefore, we know that the low-power radar module 24GHz millimeter wave mainly reflects the movement of objects (human body), so the reaction speed is fast, suitable for detecting objects approaching or away from the sensor at a certain speed. For example, someone walking at a certain speed can easily detect a certain place.
Comparison of 24GHz millimeter wave induction switch and infrared induction switch of low power radar module:
Radar induction switch:
1. Active detection (sensitive and accurate)
2, smart sensor (hidden not exposed)
3, (1~25 meters) far distance, wide Angle, no dead zone
4, not affected by the environment, temperature, dust, etc
Infrared induction switch:
1. Passive detection (often misjudged)
2, separated sensor (the wired connection between the sensor head and the main drive is easy to cause shadow, the external impact is beautiful, inconvenient installation)
3. Impenetrable
4, winter 3~5 meters, summer 1~2 meters induction distance
5. Easy to be affected by ambient temperature of 37 degrees and dust
