There is an induction radar module of the human body sensor of the Internet of Things. With the rapid development of science and technology and the continuous development of artificial intelligence and the Internet of Things, the intelligent text upgrade of human-computer interaction and the Internet of things has ushered in an outbreak. The microwave radar human body sensor of the iot sensing layer undoubtedly plays an indispensable role in the realization of the iot intelligent scenario. With the help of human presence sensor radar module, people can detect the movement of objects, easily realize automatic lighting, intelligent linkage, scene definition and other functions, widely used in intelligent lighting, smart home, smart security and other fields.
But when we get up in the morning to find clothes, open the wardrobe, then there are more clothes in the wardrobe, the light is not enough, then put the human presence sensor radar module installed on the top of the wardrobe, people open the wardrobe light automatically, all the clothes are displayed in front of us, we can quickly find the clothes we want to wear. In the smart era, wardrobe lights have also been upgraded to radar induction lights. There are induction radar modules in the human body. The radar system transmits electromagnetic energy to specific areas of space to search for targets by modulating waveforms and directional antennas. Objects in the search area (targets) reflect part of the energy (radar transmitted signals or echoes) back to the radar, which is then processed by the radar receiver to extract target information such as range, movement trajectory, direction and speed. The radar induction module has a larger range and a wider Angle. Radar body sensor can penetrate glass, sheet and other non-metallic materials, millimeter wave radar anti-jamming ability is strong, is not affected by environment, temperature, dust and so on. The induction wardrobe light is to avoid the wall switch. We can control the brightness of the light by the presence of the sensor radar module switch. The human sensor switch can actively turn on the light by sensing the presence of people, and automatically turn off the light when no one is detected. The installation of wardrobe lights is very practical. It gives full play to the lighting function.
Millimeter wave (mmWave) radar emits electromagnetic waves that bounce off any object in its path. By capturing and processing the reflected signals, the radar system can determine the distance, speed and Angle of an object. The millimeter wave sensor radar module can provide millimeter-level accuracy in the object distance detection, so as to become a human biological signal sensing technology. In addition, millimeter wave technology can also be used for non-contact continuous monitoring.
Measurement of contact and non-contact vital signs
Most of the existing measuring instruments are contact type. They need to be attached to the patient for measurement and monitoring. This is not very convenient for patients who need long-term continuous monitoring. In addition, the contactless human presence sensor radar module is likely to become even more important in the current COVID-19 pandemic, as it will help minimize the transmission of the virus from points of contact and contacts, and better safeguard the safety of healthcare workers.
How does human body Sensor millimeter-wave Radar monitor vital signs
Vital signs are a set of medical parameters that indicate human health and bodily function. They provide possible clues to disease and trends for recovery or deterioration. There are four main vital signs: body temperature (BT), blood pressure (BP), respiratory rate (BR) and heart rate (HR). These parameters vary by age, sex, weight and fitness level. Under certain conditions, these parameters may also vary depending on people's physical or mental activity. For example, people who engage in physical activity may have higher body temperatures, respiratory rates, and heart rates.
