Technical analysis of microseismic life detector

The microseismic life detector technology is a non-contact intelligent detection system that captures micro level vibration signals generated by vital signs (such as breathing and heartbeat) through high-sensitivity vibration sensors, achieving precise identification of concealed targets. Its core principle is based on passive microseismic sensing technology, where the sensor is attached to the vehicle structure (such as chassis or frame), synchronously collects the vibration spectrum (respiratory rate 0.2-0.3Hz, heart rate 1-1.7Hz), and uses AI algorithms to filter environmental noise (such as engine vibration or wind noise), with a false alarm rate controlled below 0.3%.

I. Core technological advantages

Efficiency: Single detection time ≤ 10 seconds, supporting vehicle scanning at speeds ≤ 15km/h, with a daily processing capacity of over 500 vehicles, significantly improving inspection efficiency.

Safety: Adopting a radiation free design to avoid the risks of traditional X-rays or manual inspections, suitable for sensitive places such as prisons and drug rehabilitation centers.

Stability: Built in anti-interference algorithm, with a false alarm rate of less than 0.1%, can adapt to extreme environments ranging from -30 ℃ to 60 ℃, and ensure continuous operation for 7 × 24 hours.

Intelligence: Based on deep learning models, distinguish human body and other biological vibration features, and accurately count hidden scenes of multiple people.

II. Operation Process and System Design

Deployment method: Attach 4-5 sensors to the vehicle's load-bearing structure (such as the beam), and synchronously place reference sensors on the ground to eliminate environmental interference.

Detection start: The scanning is automatically triggered when the vehicle passes, and data collection is completed within 8-40 seconds. The terminal displays the results in real time (green light is normal, red light triggers sound and light alarm).

System linkage: Automatically lock the barrier gate upon discovering abnormalities (response<0.5 seconds), and push the positioning heat map to the command center, supporting seamless integration with the license plate recognition system.

III. Application scenarios and practical value

Supervision location: deployed in the AB gate passage of the prison, intercepted multiple incidents of hidden vehicles in the mezzanine, and increased inspection efficiency by four times.

Large scale facilities: adapted to scenarios such as airports and sports stadiums, enabling rapid screening of concealed weapons and reducing safety accident rates by 80%.

Data management: Automatically generate electronic files (including vibration waveform diagrams and timestamps), support risk modeling and anomaly warning. In actual combat, the prison system in a certain province saved a lot of money in labor costs annually, verifying the reliability and economy of the technology.

This technology has been certified by the Ministry of Public Security and is being promoted in critical infrastructure nationwide, reshaping security testing standards.