How do Baidu infrared and face detection systems detect fevers at Qinghe station?

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Baidu's System at Qinghe Station Utilises Infrared and Facial Recognition for Fever Detection

At Beijing's Qinghe railway station, a system developed by Baidu integrates infrared and face detection technology to identify individuals with elevated body temperatures. This automated process involves capturing each traveller's facial image. Should a person's body temperature register at 37.3 degrees Celsius or higher, the system is designed to trigger an immediate alarm. This alert then necessitates a follow-up examination by station personnel.
Infrared and Face Detection Mechanism

The system at Qinghe station employs a dual-pronged approach, combining infrared sensing with facial recognition capabilities. The infrared component is crucial for measuring body temperature, while the face detection technology ensures that an image of the individual being scanned is recorded. This allows for precise identification and correlation of temperature readings with specific passengers.
Temperature Threshold and Alarm Trigger

A key operational parameter of Baidu's system is its defined temperature threshold for triggering an alert. If the infrared sensors detect a body temperature of 37.3 degrees Celsius or above, this is considered a potential indicator of fever. Upon crossing this threshold, the system automatically initiates an alarm sequence.
Secondary Check by Station Staff

The alarm generated by the fever detection system serves as a directive for human intervention. Once an alarm is triggered, it prompts station staff to conduct a secondary, more direct check on the individual identified by the system. This ensures that potential cases are not solely reliant on automated detection and allows for professional assessment.
System Efficiency and Throughput

Baidu's fever detection system is engineered for high efficiency, capable of processing a significant number of individuals rapidly. According to the company, its system can screen over 200 people per minute. This is a notable speed advantage compared to traditional thermal scanners commonly found at other transit points, such as airports.

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How do Baidu infrared and face detection systems detect fevers at Qinghe station?

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