Static Human Presence Sensor Radar Sensing IoT Technology

Static human presence sensor radar sensing Internet of Things technology, as a sensor, static human presence sensor has been widely used in smart home, smart security, etc. As the Internet of Things penetrates into various industries, it also brings various rapid development of sensors. The static human presence sensor radar technology has the advantages of strong anti-interference ability, stable and reliable performance. Radar sensor is a millimeter-wave radar sensor that combines the low power consumption advantage of pulse radar with high-precision coherent radar to become a low-power, low-cost, small-volume millimeter-wave radar, and an integrated antenna. Compared with ultrasonic and infrared, the cost is reduced by 35%, and the power consumption and volume are still small, which also enables radar sensor technology to be widely used in smart home and smart security fields.

For a long time, human static detection technology has been almost blank in the field of civilian applications, requiring human movement to detect, whether it is infrared sensing or radar sensing. In the actual application experience, if people read, meditate, play with mobile phones, etc. for a long time, they will wrongly judge that no one exists, and then execute the instruction to turn off the lights, resulting in poor user experience.

The radar detection function of the stationary human presence sensor can help users improve the experience. It has extremely high sensitivity and can detect very small movements. The technology is advanced and the consistency is good. Using advanced software algorithms, the weak waveforms generated by the presence of a stationary human body can be effectively extracted from various complex waveforms, so as to effectively determine whether there is someone within the detection range. Other interferences, such as the rotation of the exhaust fan, the walking of a slightly distant person, the rotation of the machine, etc., are shielded by the algorithm, and the effective signal is extracted at the same time. Apply office radar sensing technology. When people enter the office, they can use motion tests to tell if people leave, and turn on lights when people sit down or flicker, enabling true intelligence precisely.

It is used to judge whether people in nursing homes, hospitals, schools and other people are sleeping and resting. For example, after people enter a hotel room, the sensor is triggered and turned on. When people exist, the lamps and air-conditioning light equipment will remain on. When a person leaves, it can power off and enable smart operations, such as eliminating the need to insert a card and draw power.

The static human presence sensor radar sensor has a high degree of integration, which greatly reduces the technical development threshold. It is simple to use. The integrated chip has its own transceiver antenna, which can be powered by batteries.