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LEDDAR (
Light-Emitting Diode A light-emitting diode (LED) is a semiconductor device that emits light when current flows through it. Electrons in the semiconductor recombine with electron holes, releasing energy in the form of photons. The color of the light (cor ...
Detection And Ranging) is a proprietary technology owned b
LeddarTech
It uses the time of flight of light signals and signal processing algorithms to detect, locate, and measure objects in its field of view.


Technology

The Leddar technology is like a light-based radar that sends very short light pulses of invisible light about 100,000 times per second to actively illuminate an area of interest. The sensor captures the light backscattered from objects (either fixed or moving) over its detection area, and processes the signals to precisely map their location and other attributes. The data is compiled thousands of times per second, providing up to a few hundred frames per second and offering accurate and reliable information even in adverse weather and lighting conditions. The multi-channel sensor also provides lateral discrimination of detected objects and this feature, with 3D measurements, provides the basis for object tracking.US Patent 8242476 - LED object detection system and method combining complete reflection traces from individual narrow field-of-view channels


Examples of Leddar Applications


Smart Cities

* Traffic light and intersection management * Vehicle traffic flow monitoring * Parking space occupancy management * Automated highway toll * Vehicle size monitoring and profiling * Speed-limit enforcement * Water-level monitoring * Smart lighting applications * Public space and building security


Smart Vehicles

* Collision warning and avoidance * Obstacle detection * Assisted driving (blind spots, parking, automatic cruise control) * Unmanned vehicles, drones and UAV navigation assistance * Heavy machinery and truck safety, as well as perimeter control * Transportation vehicles’ bulk material levels (solids, liquids) * Height and distance measurements


Smart Homes and Buildings

* Indoor security and surveillance (presence, movement, intrusion) * Outdoor security and surveillance (perimeter intrusion) * Occupancy sensing * Touchless and remote controls (water faucets, lighting, etc.) * Presence detection in unauthorized areas * Autonomous robotic appliance navigation and collision avoidance


Smart Industries and Agriculture

* Mobile equipment and robot navigation * Vehicle collision avoidance * Machine safety (distance measurements, perimeter intrusion) * Security and surveillance (presence, movement, intrusion) * Smart level metering in tanks and reservoirs * Bulk material volume estimates * Silos, tanks, and reservoir level measurements * Touchless remote controls (water faucets, lighting, etc.)


See also

Time of flight Time of flight (ToF) is the measurement of the time taken by an object, particle or wave (be it acoustic, electromagnetic, etc.) to travel a distance through a medium. This information can then be used to measure velocity or path length, or as a w ...
Rangefinder A rangefinder (also rangefinding telemeter, depending on the context) is a device used to measure distances to remote objects. Originally optical devices used in surveying, they soon found applications in other fields, such as photography an ...
Laser rangefinder A laser rangefinder, also known as a laser telemeter, is a rangefinder that uses a laser beam to determine the distance to an object. The most common form of laser rangefinder operates on the time of flight principle by sending a laser pulse in ...
LIDAR Lidar (, also LIDAR, or LiDAR; sometimes LADAR) is a method for determining ranges (variable distance) by targeting an object or a surface with a laser and measuring the time for the reflected light to return to the receiver. It can also be ...
Sonar Sonar (sound navigation and ranging or sonic navigation and ranging) is a technique that uses sound propagation (usually underwater, as in submarine navigation) to navigation, navigate, measure distances (ranging), communicate with or detect o ...
Radar Radar is a detection system that uses radio waves to determine the distance (''ranging''), angle, and radial velocity of objects relative to the site. It can be used to detect aircraft, ships, spacecraft, guided missiles, motor vehicles, w ...


References

{{reflist


External links


www.leddartech.com

www.ino.ca
Light-emitting diodes Measuring instruments