LS Lidar HS1 100m Fast Scanning Traffic LiDAR

Fast Scanning LiDAR for Vehicle and Traffic Detection

The LS Lidar HS1 is a high-speed single-channel LiDAR developed for intelligent transportation, vehicle measurement and industrial detection applications. Rather than producing a full 3D point cloud, the HS1 scans across a single 120° plane at high speed, making it particularly effective for measuring vehicle contours, detecting moving objects and monitoring traffic lanes.

Its combination of fast scanning, centimetre-level ranging and Ethernet communication makes the HS1 suitable for fixed roadside installations, toll systems, vehicle classification points, loading facilities and other locations where objects need to be measured reliably while moving through a defined detection area.

Up to 100 Metres at 10% Reflectivity

The HS1 is specified for detection at up to 100 metres on targets with 10% reflectivity. Reflectivity is an important part of LiDAR range specifications because dark surfaces return considerably less laser energy than bright or reflective objects.

For vehicle detection, this provides a useful reference because tyres, dark vehicle bodies and cargo can be more difficult to detect than light-coloured surfaces. Actual operating range will depend on target material, environmental conditions, installation angle and the surrounding environment.

High Speed Scanning up to 160 Hz

The HS1 supports scanning frequencies from 40 to 160 Hz. At the highest setting, the sensor updates its measurement plane 160 times per second, giving detection software frequent information about vehicles or other objects passing through the scanning area.

This fast update rate is especially useful on roads, toll lanes and industrial entrances where objects may be moving quickly. More frequent measurements help capture the shape and position of a vehicle as it passes the sensor, rather than relying on only a small number of measurement frames.

Designed for Vehicle Contour Measurement

One of the main applications of the HS1 is measuring the outline of vehicles and cargo. When installed above or beside a traffic lane, the LiDAR can scan across a passing vehicle and provide distance measurements that software can use to calculate its profile.

This type of data can support vehicle dimension measurement, oversize detection, height-control systems and vehicle classification. It can also be used at logistics sites where trucks and loads need to be monitored as they enter or leave a facility.

120 Degree Field of View

The HS1 provides a 120° scanning field of view. This broad horizontal measurement area allows the sensor to cover a traffic lane or industrial detection zone without requiring mechanical 360° scanning.

For a fixed installation, the LiDAR can therefore be positioned so that the measurement plane intersects the area where a vehicle or object is expected to pass. Correct mounting position and angle are important because the HS1 measures within one scanning plane rather than producing a multi-layer 3D image.

±3 cm Ranging Accuracy

The current technical specification for the HS1 states a ±3 cm ranging accuracy. This is suitable for vehicle profiling, object position detection and traffic applications where reliable centimetre-level distance measurements are required.

For dimensional measurement systems, the final result will also depend on installation geometry, calibration, mounting stability and the processing software used to convert the LiDAR measurements into vehicle dimensions or classifications.

53000 Measurement Points per Second

The HS1 outputs approximately 53,000 measurement points per second. Because these points are concentrated into one scanning plane, the sensor can capture useful contour detail without producing the much larger datasets associated with multi-channel 3D LiDAR.

This makes the HS1 practical for embedded traffic and industrial systems where fast object detection is required but a complete three-dimensional representation of the environment is unnecessary.

Adjustable Angular Resolution

Angular resolution changes with the selected scanning frequency. At 40 Hz, the specified horizontal resolution is approximately 0.09°, increasing to approximately 0.36° at 160 Hz. This allows system designers to balance scan speed against measurement density.

Lower scan frequencies provide more closely spaced measurements across each scan, while higher frequencies provide faster updates. The appropriate setting therefore depends on vehicle speed, required contour detail and the processing requirements of the installation.

905 nm Time of Flight Measurement

The HS1 uses a 905 nm Class 1 laser and Time of Flight measurement technology. The sensor emits laser pulses, detects their reflections and calculates distance from the time required for the light to return.

This allows the LiDAR to measure vehicle and object positions independently of normal visible lighting conditions. Like all optical sensors, performance can still be influenced by heavy precipitation, contamination of the optical window and environmental conditions.

Ethernet Integration

The HS1 communicates through Ethernet, allowing measurement data to be transferred directly to an industrial computer, traffic controller or other processing system. This makes it suitable for permanent installations where the LiDAR forms one component of a larger detection or classification system.

The sensor operates from a broad 9 to 36 VDC supply range, which provides flexibility when integrating it into roadside equipment, vehicle systems or industrial control cabinets.

Built for Outdoor Installations

The HS1 has an IP67 protection rating and is designed to withstand vibration and mechanical shock. LS Lidar specifies dimensions of approximately 155 × 107.5 × 90 mm, making the unit compact enough for mounting on roadside structures, gantries and industrial equipment.

The current manufacturer page specifies an operating temperature range of approximately -20°C to +65°C. Environmental protection and secure mounting are important in traffic applications because the sensor may be exposed continuously to vibration, dust, water and changing weather conditions.

Typical HS1 Applications

• Vehicle and cargo contour measurement
• Height and oversize detection
• Highway ETC trigger and detection systems
• Vehicle type classification
• Traffic flow monitoring
• Industrial entrance and exit monitoring
• High-speed moving object detection

Why Use a Single Channel LiDAR?

A single-channel sensor such as the HS1 is useful when the application needs a precise cross-section of an object rather than a full 3D model. By concentrating its measurements into one plane, it can scan quickly and produce a relatively manageable data stream.

This is well suited to vehicle profiling because the vehicle itself moves through the measurement plane. As successive scans are collected, software can reconstruct information about its contour, dimensions or classification. Applications that require full spatial awareness in several directions at the same time are generally better served by a multi-channel 3D LiDAR.

Buying the LS Lidar HS1 from Global GPS Systems

Global GPS Systems supplies LiDAR, GNSS and professional measurement equipment for transportation, construction, surveying and industrial applications worldwide. Our team can help determine whether the HS1 provides the correct scan speed, detection range and measurement geometry for your project.

For vehicle measurement and traffic projects, sensor placement is just as important as the LiDAR specification itself. Global GPS Systems can help evaluate the intended installation, required measurement area and supporting equipment so the selected sensor matches the practical field application.