What are the characteristics of a radar life detector?

Radar life detector in rescue equipment.

1. Introduction to Radar Life Detectors

A radar life detector, as the name suggests, is a rescue device used to search and rescue survivors in situations such as earthquakes, collapses, and building collapses. It combines radar technology and biomedical engineering technology, using the reflection principle of electromagnetic waves to detect various micromovements caused by human life activities, and obtains information about breathing and heartbeat from these micromovements to identify the existence of life.

2. Life Detectors

Why is a radar life detector called a life detector? How to determine if a person is still alive? At close range, you can observe whether you are breathing or if your chest is moving. But what if this person is in a mine shaft several meters or even tens of meters below?

A radar life detector is a high-tech life-saving device that integrates ultra-low-power ultra-wideband radar technology and biomedical engineering technology. Its working principle is based on the Doppler effect of human movement on radar echoes, analyzing and judging whether there are living bodies in the ruins and the specific location information of the living bodies.

Generally speaking, the basis for a radar life detector to judge whether there are living people under the ruins is to see if his heart is beating medically. As long as a person's heart is still beating, the radar life detector will sense the electric field generated by the ultra-low-frequency radio waves generated by the heart, thereby finding the location of the "living person".

Radar life detectors rely on the strong penetration power of electromagnetic waves. Unlike audio detectors, sound waves are blocked by the cement on the collapsed floor, and thermal detectors are affected by other heat-generating objects. Their special radio wave filters can filter out different frequencies between dogs, cats, and humans, so life detectors can only sense the electric field generated by the frequency emitted by humans.

As a high-tech professional rescue device specially designed for disasters such as earthquakes, avalanches, and building collapses, the radar life detector can detect characteristic signals such as breathing and heartbeat without excavating ruins, drilling holes, or touching living bodies.

Through the reaction of human movement to the radar signal, we can analyze and judge whether there are living organisms in the ruins and their location. The detected human movement and static objects (breathing results) will be displayed in different colors on the instrument, providing accurate technical support for rescuers to find survivors.