Intelligent Detection - 2D and 3D laser scanners_ Hokuyo

Two-dimensional non-contact distance measurement system. 2D laser scanners, also known as LiDAR (Light Detection and Ranging) sensors, are two-dimensional non-contact distance measurement systems. To capture 2D profiles of the environment, Hokuyo Automatic's 2D laser scanners are used in conjunction with an infrared laser beam.

Laser scanners emit very short pulses of light, measure the time it takes for the pulses to travel back and forth to the object and calculate the distance from this.

In addition, the scanner measures the angle at which the pulses are emitted, generating a profile image of the entire environment, including all objects. This process can be repeated more than 100 times per second, depending on the specific model of the scanner. This makes it possible to obtain highly detailed images of the environment, which can then be used for object recognition, navigation of autonomous vehicles and robots, port technology, drones and industrial applications.

Features 2D laser scanners:

• High range up to 120 meters
• Suitable for both indoor and outdoor applications
• High angular resolution of 0.125 degrees to 1 degree
• High scanning speed
• Compact and lightweight: 130 grams/50×50×70 mm
• High reliability and resistant to vibration and shock

Depending on the model, Hokuyo's laser scanner scans a detection range of up to 120 m and an angular range of up to 270°.

The difference between 2D and 3D laser scanners

3D laser scanners take contactless distance measurement technology a step further. They not only measure the distance to surrounding objects, but also provide a three-dimensional representation of those objects. This capability makes them perfect for a wider range of applications, including 3D modeling, construction planning, cultural heritage preservation and autonomous vehicle navigation.

The main difference between 2D and 3D laser scanners lies in the dimensionality of the data they provide. While 2D scanners capture flat profiles, 3D scanners generate a full three-dimensional model of the scanned environment, providing additional depth and detail.

When is a 2D laser scanner the appropriate solution?

2D laser scanners are suitable for applications that require 2D profiling and distance measurement, such as object detection, collision avoidance and indoor inventory. They are also ideal for applications with limited budgets because they are generally less expensive than their 3D counterparts.

When is a 3D laser scanner the appropriate solution?

3D laser scanners are the preferred solution when a detailed, three-dimensional representation of an environment or object is required. They are ideal for applications such as terrain mapping, automotive and autonomous vehicles and drones.

Usage applications for Hokuyo 3D laser scanners:

• Construction and surveying: 3D laser scanners are used to create detailed 3D models of construction sites, buildings or landscapes. These models can be used for planning, design and monitoring of construction progress.
• Archaeology and heritage conservation: In archaeology, 3D scanners are used to create detailed 3D models of archaeological sites or artifacts. This helps preserve cultural heritage by capturing it in detail and allows researchers to study it further without physical contact.
• Autonomous vehicles: In the field of autonomous vehicles, 3D laser scanners are used for environmental perception. They help the vehicle understand the world around it, including other vehicles, pedestrians and obstacles, providing safe and efficient navigation.
• Industrial Inspection: 3D scanners can be used to inspect industrial parts or structures, looking for defects or wear and tear. This can be particularly useful in quality control processes.
• Retail and logistics: In the retail and logistics sector, 2D and 3D laser scanners are used to optimize warehouse management, monitor inventory and improve overall supply chain efficiency.

Want to learn more about the different 2D and 3D laser scanners and see examples of applications? Then take a look at the next page of our website: Hokuyo 2D and 3D laser scanners - LIDAR sensors | fortop NL