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Collision avoidance in transportation
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Collision avoidance in transportation
In transportation, collision avoidance is the maintenance of systems and practices designed to prevent vehicles (such as aircraft, motor vehicles, ships, cranes and trains) from colliding with each other. They perceive the environment with sensors and prevent collisions using the data collected from the sensors. Collision avoidance is used in autonomous vehicles, aviation, trains and water transport. Examples of collision avoidance include:
Collison avoidance requires the position of objects in its surroundings and the location of the vehicle relative to their positions.
Many collision avoidance systems need two things:
The first step in collision avoidance is perception, which can use sensors like LiDAR, visual cameras, thermal or IR cameras, or solid-state devices. They are divided upon the part of the electromagnetic spectrum they use. There are two types of sensors, passive and active sensors. Examples of active sensors are LiDAR, Radar and Sonar. Examples of passive sensors are cameras and thermal sensors.
Passive sensors detect energy discharged by objects around them. They are primarily visual or infrared cameras. Visual cameras operate in visible light, and thermal cameras operate in infrared light (wavelength of 700 nanometres to 14 micrometres).
Cameras rely on capturing pictures of their surroundings to extract useful information. The advantages of using cameras are their smaller size, lesser weight and flexibility. Their disadvantages are their lack of image quality, and the sensitivity to the lighting and weather. They rely on image-processing systems to detect objects.
Infrared sensors use infrared light to detect objects. They are primarily used in low light conditions and can be used with visual cameras to overcome the poor performance of visual cameras in low lighting. They have a lower resolution than traditional cameras.
Active sensors emit radiation and read the reflected radiation. An active sensor has a transmitter and a receiver. A transmitter emits a signal like a light wave, an electrical signal, or an acoustic signal; this signal then bounces off an object, and the receiver of the sensor reads the reflected signal. They are fast, require less processing power and are affected less by weather.
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Collision avoidance in transportation AI simulator
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Collision avoidance in transportation
In transportation, collision avoidance is the maintenance of systems and practices designed to prevent vehicles (such as aircraft, motor vehicles, ships, cranes and trains) from colliding with each other. They perceive the environment with sensors and prevent collisions using the data collected from the sensors. Collision avoidance is used in autonomous vehicles, aviation, trains and water transport. Examples of collision avoidance include:
Collison avoidance requires the position of objects in its surroundings and the location of the vehicle relative to their positions.
Many collision avoidance systems need two things:
The first step in collision avoidance is perception, which can use sensors like LiDAR, visual cameras, thermal or IR cameras, or solid-state devices. They are divided upon the part of the electromagnetic spectrum they use. There are two types of sensors, passive and active sensors. Examples of active sensors are LiDAR, Radar and Sonar. Examples of passive sensors are cameras and thermal sensors.
Passive sensors detect energy discharged by objects around them. They are primarily visual or infrared cameras. Visual cameras operate in visible light, and thermal cameras operate in infrared light (wavelength of 700 nanometres to 14 micrometres).
Cameras rely on capturing pictures of their surroundings to extract useful information. The advantages of using cameras are their smaller size, lesser weight and flexibility. Their disadvantages are their lack of image quality, and the sensitivity to the lighting and weather. They rely on image-processing systems to detect objects.
Infrared sensors use infrared light to detect objects. They are primarily used in low light conditions and can be used with visual cameras to overcome the poor performance of visual cameras in low lighting. They have a lower resolution than traditional cameras.
Active sensors emit radiation and read the reflected radiation. An active sensor has a transmitter and a receiver. A transmitter emits a signal like a light wave, an electrical signal, or an acoustic signal; this signal then bounces off an object, and the receiver of the sensor reads the reflected signal. They are fast, require less processing power and are affected less by weather.