Round-the-clock precise identification of ultra-high vehicles safeguards the safety of bridge and tunnel assets.

Bridges, tunnels, and culverts are critical chokepoints in highway transportation. Once struck unexpectedly by vehicles that exceed the height limit, such incidents can range from minor traffic disruptions caused by trucks becoming stuck to severe structural damage or even collapse of bridges and tunnels. Traditional physical height restriction barriers adopt a “passive protection” approach—often only detecting collisions after they’ve already occurred—lacking an effective mechanism for proactive intervention. Meanwhile, conventional single-point photoelectric detection systems are highly susceptible to false alarms triggered by birds, fallen leaves, or adverse weather conditions, leading to frequent ineffective alerts and making it difficult to achieve precise, round-the-clock protection.

Application Logic: Deploy the F1X measurement-grade LiDAR on gantry structures located just before bridge and tunnel entrances—typically 100 to 300 meters from the entrance. The radar emits high-frequency laser beams downward, creating an invisible “virtual electronic height restriction wall” that spans across all lanes. When a vehicle speeds through the monitoring section, if any part of its body exceeds the preset safety threshold (e.g., 4.5 meters), the radar will trigger an alarm signal within milliseconds, activating both on-site audio-visual alarms and the LED guidance screen ahead, which displays the message: “Vehicle too tall—please take an alternate route.” This proactive warning and traffic diversion system ensures that vehicles exceeding the height limit are discouraged and redirected before they reach critical infrastructure.

Technological Advantages: Compared to traditional mechanical impact rods or infrared beam-based solutions, the F1X employs Time-of-Flight (TOF) measurement technology, offering exceptional resistance to ambient light interference. Coupled with an intelligent filtering algorithm, it can effectively eliminate false alarms caused by birds, insects, and rain or snow, ensuring zero false alarms and zero missed detections. Its continuous scanning capability covers the entire lane width, completely eliminating the possibility of vehicles bypassing the detection system—a limitation inherent in single-point sensors. Moreover, the detection height threshold can be flexibly configured via software, eliminating the need for physical adjustments to the equipment and significantly reducing installation and maintenance costs.

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Category:

Road

Outdoor Automation

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Precise Vehicle Classification at Highway Toll Stations: Enhancing Traffic Efficiency

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Precise Vehicle Classification at Highway Toll Stations: Enhancing Traffic Efficiency

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