1. Infrared Thermal Imaging Traffic Sensor

Infrared thermal imaging traffic sensor uses different temperature signals generated by pedestrians and non-motor vehicles on the road to present infrared thermal images, so as to realize the detection function. Using infrared thermal imaging technology, it can work normally without the help of any light source on the road, and will not be unable to image due to direct sunlight. Therefore, no matter the light intensity, infrared thermal imaging traffic sensor can provide 24 hours a day non-stop pedestrian and non-motor vehicle detection.

In addition, the supporting intelligent analysis software also makes the infrared thermal imaging technology icing on the cake. The infrared thermal imaging detection area will automatically identify the detection target. When pedestrians or non-motor vehicles enter the area, the intelligent software connected with the infrared thermal imaging traffic sensor will trigger the detection and transmit the signal to the traffic signal control machine.

2. Application of Pedestrian Detection Sensors at Intersections

By detecting the presence of pedestrians at intersections, the infrared thermal imaging sensor can intelligently manage the traffic lights or warning lights. The sensor transmits the information to the traffic signal control machine through contact closure or TCP/IP, making the traffic lights and warning system more flexible and ensuring the safety of pedestrians in the traffic environment. At the same time, adaptive signals and warning lights can avoid unnecessary waiting for pedestrians and drivers.

In many countries, including China, pedestrians can quickly cross the road by pressing the pedestrian pass button. However, according to the survey, during the unblocked period, up to 70% of pedestrians pass the road before the signal light turns green after pressing the button to apply for pedestrian passage. This means that when the signal light turns green, there will be no pedestrian waiting, thus causing unnecessary waiting for motor vehicles and generating up to 3 times of carbon dioxide emissions. Through the pedestrian detection sensor, when no pedestrians are detected at the intersection, the sensor will automatically send video signals to the signal control machine to arrange the passage of vehicles, thereby increasing the traffic flow rate by 30%.

3. Application of Infrared Sensor in Signal-free System Intersection

At the time of the accident, the driver's driving speed determines the severity of the accident, and at the moment of the accident, the driver's reaction time and brake speed also have a great relationship with the severity of the accident. Reaction times are affected by a number of factors: poor concentration, bad weather, poor visibility, drunk driving, etc.

In the intersection section without signal system, the existence of traditional strobe warning lights is very important, which can remind the driver of pedestrians and non-motor vehicles passing in front of the road, so that the driver can slow down in time. But in many cases, the role of conventional strobe signals is often overlooked because drivers do not change their driving behavior because of the strobe warning lights. Studies have shown that dynamic warning lights, which start flashing when activated by pedestrians or non-motor vehicles, are more effective, increasing drivers' awareness and causing them to slow down and respond more quickly. Pedestrian infrared sensors can prevent traffic accidents by activating flashing lights or highway LED warning lights to reduce the number of times drivers and pedestrians avoid danger.

The application of infrared thermal imaging technology in the detection of pedestrians and non-motor vehicles plays a very important role in road traffic, which can not only guarantee the safety of pedestrians and non-motor vehicles, but also make the road more efficient.