SPEPC TECHNOLOGY

Solution

Collision Monitoring and Alarm Solution for the Culvert of the Railway Overpass and Its Height-Restriction Protective Frame

Background Introduction

As highway and railway networks continue to expand, the number of bridges and culverts that pass beneath railways is steadily increasing. To ensure the safety of the railway infrastructure above, mandatory height‑restriction barriers are commonly installed on the roads below.

However, in actual operations, accidents involving collisions with height‑restriction barriers are frequent—often due to driver negligence, unclear road signage, or oversized vehicles inadvertently entering restricted areas—resulting in a series of serious problems:

First, it directly endangers the driver’s safety and can easily lead to traffic disruptions.

Second, severe collisions may damage critical infrastructure such as bridges and culverts, creating significant safety hazards.

Third, following the accident, the lack of timely and reliable evidence has made it difficult for regulatory authorities to trace the incident, thereby hindering the attribution of liability and the settlement of claims.

Accordingly, developing an intelligent, traceable collision‑monitoring and alarm system that enables end-to-end management—from proactive early warning to post‑incident evidence collection—has become an urgent necessity for ensuring operational safety in grade‑separated highway–railway intersections.

Solution Overview

This solution is a system that integrates Ultra-high-speed warning, collision monitoring, video-based evidence collection, and intelligent analysis An integrated safety protection system for the iron‑spanned public overpass culvert and height‑restriction guardrail.

The solution aims to leverage technological means to transform passive protection into an intelligent regulatory model featuring proactive early warning and precise management. By integrating ultra‑height warning modules (LiDAR), collision‑alert modules (MEMS tilt/acceleration sensors), intelligent data‑processing units, audio‑visual alarms, LED ultra‑height display screens, and high‑definition video cameras into height‑restriction barriers, the system can detect vehicle over‑height conditions and collision events in real time.

The system not only provides audible and visual warnings when a vehicle approaches, effectively preventing collisions, but also automatically triggers an alarm at the moment of impact, simultaneously recording event video, recognizing license plates, and uploading data.

This plan has taken shape. “Pre-event early warning, in-event alerts, and post-event traceability” It establishes a comprehensive management closed-loop, providing robust technical support for the operational safety, law enforcement evidence collection, and accident liability determination of railway and road authorities.

FEATURES OF THE SOLUTION

Proactive Ultra-High Warning

Proactive Ultra-High Warning

Lidar is used to precisely measure vehicle height; upon detecting an over-height vehicle, it immediately activates both audible and visual alarms along with an LED warning display, thereby reducing collision risks at the source.
Real-time Collision Detection and Alerting

Real-time Collision Detection and Alerting

The collision‑alert module achieves a measurement accuracy of ≤0.005°, an acceleration sensitivity of 0.1 g, and can be triggered and report data instantaneously upon impact, with a response time of less than 10 seconds—exceeding the national railway standard.
End-to-end law enforcement evidence collection

End-to-end law enforcement evidence collection

Integrates high-definition video with AI-powered license plate recognition, automatically recording 30 seconds before and 1 minute after a collision, along with no fewer than five still images, and uploading the evidence to the platform in real time.
High accuracy of AI algorithms

High accuracy of AI algorithms

Trained on over 40,000 real-world vibration and collision data points, it effectively filters out environmental noise, achieving an alarm accuracy of ≥96.28%, surpassing the industry standard of 90%.
Wireless Networking and Low Power Consumption

Wireless Networking and Low Power Consumption

It employs dual-mode 4G+LoRa communication, is powered by solar energy and a battery, features a built-in lithium‑ion battery with a lifespan of 3–5 years, and enables rapid, wiring‑free deployment.
Ultra-long warning distance

Ultra-long warning distance

Ultra‑long warning distance of 10–300 meters, customizable to provide drivers with ample reaction time and braking distance.

 Platform Display  Platform Display  Platform Display

 

Platform Display

The automated slope‑monitoring system platform along railway lines is a critical technological solution for ensuring railway safety. By deploying various sensing devices—such as displacement sensors and tilt sensors—on the slopes, it continuously tracks deformation, movement, and inclination in real time. Leveraging advanced data‑processing and analytical algorithms, the system can swiftly and accurately identify potential geological hazard risks and issue timely alerts. The platform also features a remote monitoring and management center, enabling operations and maintenance personnel to access slope‑monitoring data in real time and implement appropriate response measures based on data analysis. With its automation, intelligence, and robust real-time capabilities, this system helps safeguard railway operations and mitigate latent disaster risks.

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