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Automatic Vehicle Classification System

Solution 1: Vehicle Speed, Flow and Tire Spacing Detection

Application:

  • Two LiDAR devices are installed close to ground and beside carriage lane. Traffic information such as vehicle speed, flow and tire spacing is counted by detecting distance variation of tire in part between chassis and ground.

Advantages:

  • Direct output of traffic information such as vehicle speed, flow and tire spacing is possible with built-in algorithm.
  • The detection frequency is as high as 10 kHz and adjustable between 1 Hz and 10K Hz.
  • The algorithm covers low-speed vehicle and high-speed vehicle application scenarios at the same time.
  • It is IP67 insulated and conveniently integrated into system thanks to its compact size.
  • When external stationary pile is available, it is easily installed and commissioned.
  • It supports different ports such as 232, 485, CAN, 4-20mA, I/O, UART, etc.

Solution 2: Identify Vehicle Model and Measure Flow

Application:

  • Two LiDAR devices are installed right above a lane, one for vertically downward detection and another for skew detection.
  • Flow information feedback is available by measuring distance variation.
  • Vehicle length, height and profile are computed meanwhile.
  • Machine learning-related algorithm is adopted in the device to identify seven types of vehicle.

Advantages:

  • The device has high detection precision, stable performance and high glare resistance performance.
  • Built-in algorithm is available.
  • The detection frequency is as high as 10 kHz and adjustable between 1 Hz and 10 kHz.
  • The algorithm covers low-speed vehicle and high-speed vehicle application scenarios at the same time.
  • It is IP67 insulated and conveniently integrated into system thanks to its compact size.
  • When external stationary pile is available, it is easily installed and commissioned.
  • It supports different ports such as 232, 485, CAN, 4-20mA, I/O, UART, etc.

Solution 3: Vehicle Length, Width and Height Detection – Over-Limit Detection Solution

Application:

  • Multiple single-point LiDAR devices are installed on two rows of gantry.
  • Gantry is divided into multiple sections by four meters and the devices are installed alternately on both rows of gantry.
  • The device transmits vehicle length, width and height through detection system.

Advantages:

  • The device has high detection precision, stable performance and high glare resistance performance.
  • It is easily integrated into the system with simple wiring. The failure of individual radar does not affect the detection on entire lane.

Solution 4: Over-height Vehicle Detection by Using Smart Height Limit Bar

Application:

  • A LiDAR device is installed on a height limit bar usually placed in front of viaduct or tunnel on road for lateral detection to horizontal direction. It detects the distance is reduced, indicating the passing vehicle height is over the limit (e.g., 2.5 m).
  • At the moment, the alarm light flickers and camera is triggered to take photos, then the broadcast is on, advising the vehicle to turn back.

Advantages:

  • The device has high detection precision, stable performance and high glare resistance performance. Built-in algorithm is available.
  • The detection frequency is as high as 10 kHz and adjustable between 1 Hz and 10 kHz.
  • The algorithm covers low-speed vehicle and high-speed vehicle application scenarios at the same time.
  • It is IP67 insulated and conveniently integrated into system thanks to its compact size.
  • When external stationary pile is available, it is easily installed and commissioned.
  • It supports different ports such as 232, 485, CAN, 4-20mA, I/O, UART, etc.

Description

  • Automatic Vehicle Classification System is an important and component of any Smart Motorways and Highways.
  • Over-limit of vehicle running on motorway and highway is an important factor for accident and a common problem.
  • LiDAR provides a series of smart traffic solution.
  • It enables inspection of over-wide and high vehicle, profile identification and speed detection on-line.
  • Feedback of detected data is provided through PC-end software.
  • Warning will be received and movement is stopped when the data is beyond safe range, avoiding over-limit vehicle damaging infrastructure or injuring life.

 

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