Lidar sensor | Laser light remote sensing technology
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Discover the fascinating world of Lidar sensor, a sub-area of optical sensors. Find out everything about the current state of technology and future ones in our article Trends. We provide you new products from different manufacturers as well as the diverse possible applications of lidar sensors. You can also find answers to the most important questions about this advanced technology here.
Contents
Lidar technology 2024 – The most important things in brief
Lidar technology is a key area in the optical sensors and spatial data analysis. During development, the main focus is on increasing accuracy, higher resolution and more efficient data processing. This makes them particularly valuable for applications in autonomous vehicle technology, where they are used for precise environmental sensing and mapping.
Likewise, lidar is used in the Geomatics used for detailed topographic mapping and in architecture for precise building measurements. Another emerging area is environmental monitoring, where lidar is being used to analyze forest areas and record changes to shorelines.
The integration of artificial intelligence and machine learning in lidar systems is another trend that improves data analysis and opens up new application possibilities. Work is also underway to miniaturize lidar systems to make them more versatile and accessible to a wider range of applications.
Lidar sensor for monitoring conveyor belt utilization
May 27.05.2023, 2 | With the ContourXNUMXD sensor system from Pepperl + Fuchs is the most efficient way to see how busy a conveyor belt is. Unique on the market, only a single lidar sensor is used. Thanks to the performance characteristics of the R2000 lidar sensor and the intelligent algorithm, the shadow effect can be reliably corrected. Minimal assembly effort and quick commissioning in three simple steps round off this economical solution.
In order to distribute packages on a conveyor belt efficiently and as evenly as possible to downstream stations, the conveyor belt occupancy must be recorded. This is possible with this Contour2D sensor and its lidar sensor, which is mounted centered above the conveyor belt. Due to the central sensor position, shadows from packages fall on the conveyor belt, which would distort the measurement results.
Thanks to the interaction of the high angular resolution of the R2000 2D and an intelligent algorithm, these resulting shadows are corrected. The algorithm and further processing of the raw data take place on the sensor's Multi Scan Evaluation Unit (MSEU). Because only one sensor is mounted in the middle above the conveyor belt, no major adjustments to the conveyor belt are necessary. This means that existing systems can also be easily retrofitted.
Third generation lidar technology
March 30.03.2023, 1 | With the Scala 2 and XNUMX from Valeo Conditionally automated driving in traffic jams became a reality. Now the range of use of private vehicles can be significantly expanded with the Scala 3 Lidar due to a greater scope of use and support for higher speeds. The technology leader for equipping robotaxis produces its proven, market-leading technology in large series.
Valeo's Scala 3 lidar is at the heart of the next generation of highly automated systems. It will not only expand the range of use of level 3 conditionally automated vehicles, but also enable higher speeds up to 130 km / h make possible. In addition, the lidar sensor will make the use of level 4 robotaxis possible on a large scale.
Point cloud with unprecedented resolution
Thanks to its laser-based system, Valeo Scala 3 creates a 3D image of the vehicle's surroundings and provides a point cloud with an automotive system previously unattainable resolution. With more than 12 million pixels/s (16 times that of Scala 2), a detection range of 200 m for low reflectivity objects and 300 m for high reflectivity objects, the sensor sees almost everything, even things invisible to the human eye Objects.
In addition to its hardware capabilities, Scala 3 has a number of software modules, including algorithms based on perception and artificial intelligence based. The lidar functions ensure maximum security and reliability. Obstacles, rain and splash water or alignment errors are detected. The system can calibrate itself online.
Object detection more than 150 m in advance
For example, on an unlit, black asphalt road, lidar technology detects and identifies objects more than 150 m in advance. This also applies to a tire lying around that neither the driver nor cameras or radar devices can reliably detect. The technology identifies, classifies and tracks objects so that the vehicle's data fusion system full 3D mapping the vehicle environment. This allows autonomous driving. The software modules can be easily embedded in common SoC platforms and executed on special ECUs or domain controllers.
Sensor for safe autonomous driving in all weathers
The ADAS market (global market for advanced driver assistance systems) is expected to grow by 17% per year and reach a volume of 2030 billion euros in 60. A major Asian vehicle manufacturer and a leading American robotaxi company will use Valeo's Scala 3 lidar. As early as 2022, Valeo was able to win Stellantis as a customer for its latest lidar sensor and has now booked orders for the Scala 3 worth more than EUR 1 billion.
Lidar sensor recognizes the environment in four dimensions
Sep 08.09.2020, XNUMX | In the area of assistance systems for e.g. b. self-driving cars Many automakers rely on lidar technology. lbeo Automotive Systems has developed the new lidar sensor for this purpose. The Ibeonext has a new type of photon laser Measurement Technology. It generates a high-resolution 3-D point cloud for the reliable detection of objects.
Lidar comes in real solid state art sensors without moving parts. Similar to one Camera the system generates an additional SW image. The compact design was based on high-volume production Automotive-Standards developed. The Ibeonext is suitable for use in driver assistance systems and automated driving Levels 3 and 4. From 2021 there will be perception software for the lidar sensor, which is used to perceive the surroundings and classify the objects.
Distance sensor with fast time-of-flight measurement method
What is unique about this lidar sensor is that it has an additional intensity image is produced. It thus also functions as a kind of black and white camera. This is what lbeo calls the fourth dimension or 4D sensor technology. The intensity image offers advantages in particular for lane recognition while driving. The compact and modular design of the new Ibeonext allows different set-ups for different customer applications.
Long range lidar sensors
The Solid state technology of the lidar sensor offers a long range and high spatial resolution when scanning the environment. This allows an exact modeling of the environment. Changes in the course of the road are accordingly detected more precisely and faster. This is important, for example, for lane detection.
“Lidar is the perfect key technology to help with Automation to ensure maximum security of processes, ”says dr Ulrich Lages, CEO of lbeo Automotive Systems. “Our new Ibeonext solid-state lidar components meet these requirements outstandingly and they can be used in a variety of ways, e.g. B. for an autonomous vehicle. We already see great demand in the market and are proud to be delivering the first copies now. "
Lidar sensors without moving parts
With conventional lidar sensors, a rotating mirror covers the field of vision. The Ibeonext Lidar comes with one instead of this moving part Semiconductor Technology for use. The lidar sensor processes many laser pulses in parallel. This creates a 3D model of the environment. Guard rails, lane markings and other road users are recognized in their position, distance and movement.
Where cameras create a two-dimensional image that software interprets spatially, lidar sensors deliver a very precise 3D image. In conjunction with a high range or distance detection and a high spatial resolution of the sensor, this combination is a USP of lbeo lidar technology. The Ibeonext lidar sensors are modular and offer different fields of view. Their design is compact, they are plug-and-play capable and can be used over 1 million distancevalues evaluate per second.
2D lidar sensor for more flexible transport shuttle from Montratec
03.12.2019 | Pepperl + Fuchs has worked in close partnership with montratec developed a customer-specific 2D Lidar sensor for a more flexible transport shuttle based on the specially developed Pulse Range Technology. This makes it possible to distinguish between permanently installed parts of the route such as tunnels or curves.
FAQ
What is Lidar?
The Light Detection and Ranging Technology, or lidar for short, is a remote sensing technology that uses laser light to measure the distance to an object or surface.
How does the lidar sensor work?
A lidar system transmits Laser pulses and measures the time it takes for them to return to the sensor after being reflected from objects. The measured “time of flight” of the light pulses makes it possible to calculate the distance to the reflecting objects. By sending and receiving thousands of such pulses per second, the sensor can create a detailed 3D map of the environment. The position and angles of the 3D lidarSensor as well as the speed of the laser are also taken into account to determine the exact position and shape of the objects around it.
Does lidar have a future?
Ja, Lidar has a promising future, especially in areas requiring precise spatial sensing and 3D mapping, as well as in the field of autonomous driving.
Where are lidar sensors used?
The main areas of application include:
- Self-driving cars: Lidar sensors provide precise environmental information necessary for safe autonomous driving.
- Town planning and mapping: Lidar is increasingly being used for high-precision mapping and in urban planning to create detailed 3D models of cities and landscapes.
- environmental monitoring: In forestry, geology and water resource monitoring, lidar technology is used to collect and analyze environmental data.
- Robotic and Industrial automation: Lidar sensors are used in robotics for navigation and in industrial automation for precise object detection and positioning.
- Air- and space travel: Lidar technologies are also used to explore the Earth and other planets.
Source: This article is based on information from the following companies: Ibeo, Pepperl+Fuchs, Valeo.
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Angela Struck is editor-in-chief of the development scout and freelance journalist as well as managing director of Presse Service Büro GbR in Ried.