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A New Chapter in Vehicle Safety at the Longli Management Office: The Over-Temperature Detection and Early-Warning System Has Been Put into Operation.
Jul 16,2025
The Longli Management Office has activated a vehicle over-temperature detection and early-warning system to ensure highway safety.
Recently, the Longli Management Office of Jinliwen Company, in an effort to further enhance highway safety, has piloted a vehicle over‑temperature detection and early‑warning system on sections with complex road conditions. The deployment of this system has added a robust safeguard to ensure the safe passage of vehicles.
On certain sections of the Longli Expressway, particularly the long tunnel stretch at Qingyunling, the terrain is highly complex, with the approach ramp on the Longyou-bound side featuring a prolonged uphill grade. When heavy trucks ascend such steep gradients, their engines operate under sustained high load, making overheating a distinct risk. In summer, elevated pavement temperatures combined with the frequent friction between tires and the road surface during extended driving further drive tire temperatures to dangerously high levels. These factors pose significant safety hazards; should a fire break out—especially inside a tunnel—the consequences could be catastrophic.
The vehicle over‑temperature detection and early‑warning system now in trial operation is mounted on a gantry 2,000 meters from the entrance of the Qingyunling Tunnel. When a vehicle approaches within 30 meters of the detection unit, the system automatically activates, swiftly capturing critical data such as the license plate number, vehicle type, model series, and whether the vehicle is carrying hazardous materials. Leveraging advanced sensing technology, it conducts precise temperature monitoring at five key locations: the left and right tires, the engine, the cab, and the cargo compartment. If any measured temperature exceeds the system’s preset threshold, an immediate voice alarm is triggered, promptly advising the driver to exit the highway ahead at the next ramp or pull over to the emergency lane for self‑inspection, thereby mitigating potential risks. Should the driver fail to heed the voice prompt, a second over‑temperature alert will be displayed on the information panel located 300 meters from the tunnel entrance, ensuring the driver’s attention. Meanwhile, the system’s client interface will pop up an alert, notifying monitoring personnel to take timely action and placing vehicles with elevated temperatures under enhanced surveillance.
The application of the vehicle over-temperature detection and early-warning system at the Longli Management Office represents a first-of-its-kind implementation. It will effectively address the limitation of existing highway fire‑alarm technologies, which can only provide post‑incident alerts, by enabling the timely identification of potential hazards before an incident occurs and allowing for proactive measures to be taken. This approach holds significant value in preventing and reducing the occurrence of highway fires.
Going forward, the Longli Management Office will continue to closely monitor the system’s trial‑run performance and, in collaboration with the manufacturer, conduct extensive simulated high‑temperature tests on vehicle components such as the cab, tires, and the engine compartment. By analyzing substantial test data, the office will refine and calibrate alarm thresholds to better reflect real‑world operating conditions, thereby enhancing equipment reliability and the accuracy of alerts and contributing to a safer, smoother travel experience for drivers and passengers alike.
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EMAIL:Guojin@settall.com
8th Floor, Building 14, Zone 7, Headquarters Base, West Outer Ring Road, Fengtai District, Beijing
