24G millimeter wave radar module has four major detection functions. In recent years, people pay more and more attention to health, safety and other issues, and there are more and more devices on the market for real-time monitoring of human body, such as bracelets showing heartbeat, bracelets detecting motion data, and determining whether the area is invaded by the movement of objects. These devices use different methods to detect different vital signs in the body.
24G millimeter wave radar module is a radar detection module based on millimeter wave Doppler radar system. Based on the enhanced Doppler radar signal processing system, the 24G millimeter wave radar module realizes the wireless perception of personnel status in specific places through the synchronous perception technology of Doppler parameters and personnel physiological parameters. It has motion detection function, mild motion detection function, breath detection function, environmental condition evaluation and fall warning function.
In general, the body's vital signs can be divided into four categories, from strong to weak:
1. Mobile detection
Mass walking and movement of the human body, mass movement of the limbs.
2. Fretting detection
The human body is in a static state, but the body will have some small movements, such as turning the book, playing mobile phone, typing, etc.
3. Breath detection
The human body is at rest, there is no other movement. Such as sitting, napping, sleeping. There are only the ups and downs of breathing.
4. Heartbeat detection
The human body is at rest, there is no other movement. For example, when you sleep sitting up, your heartbeat is weaker than your breathing.
At present, most of the human detection radar in the market adopts the principle of motion detection, which determines the existence of human body by extracting human movements. Once the body enters a stationary state, such as sitting and sleeping, these conventional radars cannot detect the body and are judged to be in a targetless state.
Advantage of 24G millimeter wave radar module detection scheme, based on the 24GHz radar human sensing module independently developed by the company, the product can not only normally detect human movement and micro movement, but also judge the existence of human body by detecting vital signs of breathing, which solves the pain point that cannot be detected by traditional radar when the human body is stationary. Compared with heartbeat detection, which requires sitting still and facing the chest, 24G millimeter wave radar module breath detection is an important detection feature of human body. Breathing, however, is characterized by slow and tiny movements. When it is converted into an electrical signal feature, it is an extremely low frequency discontinuous signal feature. At this point, the carrier frequency of 24GHz is higher than that of low frequency radar, which naturally has unparalleled advantages in detecting such signals.
24G millimeter wave radar module broke through the traditional 24g radar can not mass production of pain point. Its unique one-receiver, one-receiver and multiple antennas can effectively filter out space electromagnetic wave interference, curtains, green plants and other micro-animals. Combined with a large number of noise peeling algorithms, 24G millimeter wave radar module can be used in different rooms, different occasions and other widely uncertain building Spaces.
