LiDAR Vehicle Dimension Measurement

In LiDAR vehicle dimension measurement, the system has three LiDAR WLR-711 sensors to measure the vehicle length,

width and height. LiDAR can regulate oversized trucks to prevent tragic accidents as well as damage on bridges and

tunnels. VanJee LiDAR would assist traffic agency to guarantee traffic safety and public asset safety.
3D-Point Cloud by LiDAR WLR-732

LiDAR operating principle

3D-LiDAR (32 layers)
32L-LiDAR
VanJee has successfully developed 3D-LiDAR (32 layers) which is WLR-

732 for autonomous vehicle and WLR-732R for roadside. VanJee WLR-

732 is one of the most powerful sensors for autonomous driving as well

LIDAR
as the eye of vehicle. WLR-732 plays an important role in the field of Ad-
WLR-732
vanced Driver Assitant Systems (ADAS) and autonomous driving. For the
For Autonomous Vehicle
roadside,VanJee WLR-732R collects real-time traffic information includ-

ing vehicles, pedestrians and broadcasts all traffic information to

surrounding vehicles. Base on several years of research, test as well as

production,VanJee 3D-LiDAR has achieved high detection precision and

long detection range. As a result, VanJee 3D-LiDAR system would supply

PRODUCTS
valuable traffic information detection of ultra-distant visual range and non
WLR-732R
visual range for the intelligent connected vehicles.
For Roadside

Demo for vehicle dimension measurement Description WLR-732 Parameter WLR-732R Parameter

Size/weight 106×72.5mm/0.86kg 154x135mm/2kg

LiDAR sensors are installed in two gantries. The first gantry has the first and the second sensors to measure vehicle
100m @10%(Reflection)
Measuring distance//ranging precision 100m
（@10% Reflection）/± 6cm
width and height. The second gantry has the third sensor to measure vehicle length. The scanning light curtain of the first 200m@40%(Reflection)/±6cm

and second sensors is perpendicular to the driving direction. The third sensor would scan in the middle of the road along Horizontal field angle Max: 360° Max: 360°

the driving direction. When the vehicle passes through the scanning area, LiDAR system would collect the 3D scanning Horizontal resolution 0.1°/ 0.2°/ 0.3°/ 0.4° 0.1°/ 0.2°/ 0.3°/ 0.4°

Vertical field angle/vertical resolution 24° /0.75° -37° ~0°

point cloud data of the vehicle. Finally, LiDAR system would filter, analyze and pattern recognize the cloud data to
Scanning frequency 5HZ / 10HZ / 15HZ / 20HZ 5HZ / 10HZ / 15HZ / 20HZ
measure width, height and length of the vehicle.
Laser wavelength/safety level 905nm/Class 1(eye safety) 905nm/Class 1(eye safety)

Operating voltage 9~36VDC 24±4VDC

LiDAR Vehicle Dimension Measurement Specification Protection class IP67 IP67
。 。 。 。
Length error If vehicle length is more than 10m, the error ≤3% Operating/storage temperature -40 C to 80 C /-50 C to 85°C -40°C to 80°C /-50°C to 85°C

Width error ≤10cm

Height error ≤10cm

BEIJING HEADQUARTERS
System power consumption ≤ 40W, heating ≤ 240W (starting heating below 5°C)
Address: Building No.12, Zhongguancun Software Park, Haidian District, Beijing, China 100193
Working temperature - 40°C~80°C
Telephone: 86-010-59766823 Fax: 86-010-58858966 Website: www.vanjee.net Email: ibd@vanjee.net
VanJee is an expert to apply LiDAR on traffic service as well as autonomous driving on vehicle. LiDAR Vehicle classification: LiDAR Traffic Data Collection

In traffic service, VanJee LiDAR WLR-711 would perform three major functions which are vehicle classifica-
VanJee develops LiDAR WLR-711 to achieve vehicle classification with 99% classification accuracy rate. LiDAR WLR-711 would collect various traffic data including vehicle amount, vehicle class and speed. These data are
tion, traffic data collection (vehicle counting, speed measurement and vehicle classification) and vehicle
As a result, the toll system would charge all passing vehicle in different toll rate according to LiDAR classification results. At invaluable for traffic research, monitoring, operation, infrastructure planning and congestion measurement. Research-
dimension measurement (length, width and height). The LiDAR has high point density and smaller diver-
first, VanJee would base local vehicle class standard to develop 3-D vehicle models in database including vans, SUV, ers and policy makers could use traffic data to study regional economic activities and logistic activities.
gence to achieve better digital image quality. As a result, clients could collect invaluable traffic data for high-
sedans, hatchbacks and enclosed trucks and trucks with different number of axles. When a vehicle passing by the LiDAR
way toll and traffic infrastructure planning. VanJee has installed thousands of LiDAR equipment in highway.
scanned area, LiDAR acquire three dimensional (3-D) profile of the vehicle also known as 3-D point clouds to match the
VanJee LiDAR products are reliable and have great adaptability even in extreme weather. VanJee LiDAR
vehicle 3-D models in database. Additionally, VanJee LiDAR could use axle distance measurement and axle numbers to
products also has been used in worldwide including Japan, Singapore and Brazil.
assist vehicle classification. VanJee would integrate LiDAR with automatic number-plate recognition (ANPC) to make sure

VanJee LiDAR WLR-711 would provide clients

LiDAR WLR-711 with five major benefits:
no vehicle can cheat on toll system.

Due to VanJee has installed more than 4000 laser sensors in highway and has developed vehicle database over four year
LiDAR WLR-711 has high protection level of IP68, so the sensor
by using machine learning, VanJee LiDAR would achieve the highest reliability and accuracy rate as well as has little envi-
can be used under various extreme weather conditions as well as
ronmental affect such as headlight, shadow, rain and fog.
has longer lifespan;

LiDAR WLR-711 has automatic heating function which enables it

to operate regularly even at -40°C;
Demo for LiDAR Traffic Data Collection LiDAR is insalled in highway gantry to collect vehicle profile.
LiDAR WLR-711’s light spot divergence angle is relatively small VanJee LiDAR is installed in highway gantry.
WLR-711 and its scanning frequency can reach 100, so the sensor satisfies
3D-point cloud picture of vehicle type
the high-speed dynamic scanning requirements;

LiDAR WLR-711 can be tailor-made as well as can be integrated

LiDAR WLR-711 Size
various interfaces and IO.

LiDAR WLR-711 has automatic fault detection and real-time Demo for vehicle classification
reporting to make sure sensor has little chance to break down.

LiDAR Traffic Data Specification

LiDAR WLR-711 Parameters and Specification
Dimensions/weight 120×130×221mm/3.4Kg Vehicle counting number error ≤2%;

Scan angle 180° Vehicle classification error ≤10%;

Scan frequency 50Hz (WRL-711E)/100Hz(WRL-711A) Speed measurement range 0~200km/h;
LiDAR WLR-711 is installed in toll station to do vehicle classification.
Angle resolution 0.5°/0.25° Average speed measurement error ≤8%
Ranging capability 0.5m to 30m @10% reflectance The largest one supports 10 lanes (60 meters in
The number of detected lanes:
Ranging error ≤3cm width), and the other is 8 lanes (30 meters in width).

Supply voltage DC24V±4V Data storage time ≥10 years;

Communication interface Ethernet Structural stability Maximum wind resistance 40m/s;

LiDAR WLR-711with cover Laser Level Class I Human Eye Safety Working power supply AC220V±15%, 50Hz±4%; or DC24V

Total power consumption of the system ≤30W, heating ≤90W (starting heating below -10°C)
Wavelength 905nm
Operating temperature -40°C~80°C Atmospheric pressure 50Kpa-106 Kpa
Relative humidity ≤98%
Protection class IP68
Working temperature -40°C~80°C
Automatic heating function Reliable detection in rain, snow, fog and
other inclement weather conditions. LiDAR WLR-711 would assist highway IC card dispenser to LiDAR WLR-711 for 3-Dpoint clouds on different vehicle classes Mean Time Between Failure ≥ 50000h.
charge different rate base on different vehicle classes