Radar transmits and receives electromagnetic waves to determine the presence of a human body. The closer you are to the radar, the higher the accuracy.

Phenomenon 1) The human body is outside the radar range

             Please refer to the radar scanning range, and adjust the installation angle; the radar measurement range, in different environments, the electromagnetic wave reflection area is different, and the scanning area will be slightly different.

Phenomenon 2) Metal occlusion causes wrong output

             Too thick office chairs and metal seats will block the penetration of electromagnetic waves and cause misjudgment.

Phenomenon 3) Difference in scanning angle

             The radar did not scan the torso, resulting in a misjudgment.

Phenomenon 4) Radar sensitivity is too low

             Radar provides parameter adjustment to increase sensitivity improvement.

The radar antenna transmits electromagnetic wave signal and synchronously receives the echo signal reflected by the target. The radar processor feeds back the target's distance, direction, speed and other information by analyzing the waveform parameters of the echo signal. Can detect the state and trajectory of moving objects.

Vehicle autopilot radar is a moving object measuring relative movement, the product design is equivalent to a telescope. Home radar is installed in a fixed position to measure subtle movement, which is equivalent to a microscope, and the algorithm architecture of the two is quite different.

Weak reflection based on radar wave frequency changes to judge, access to human physiological characteristics in the environment of big movements, chest micro as well as to beat with a weak heartbeat and other changes, calculate the existence of active state of rest, breathing heartbeat related value judgements, real-time detect in the area of the antenna to detect breathing heartbeat related numerical, sleep and Angle position information of the body.

The multi-channel radar wave reflects the external electromagnetic wave for real-time signal change collection, real-time output of azimuth information changes such as the distance and angle between the target and the radar, and real-time reporting of points to achieve trajectory tracking and multi-person count function applications.

The antenna echo signal processing based on multi-channel radar waves generates radar point cloud data, correlates relevant point clouds through AI, confirms the change of the target's attitude, height, and angle, and confirms the falling process of the target and the state after the fall. Changes and multiple judgments are used to realize timely detection and signal output of dangerous situations such as people falling and fainting after falling.