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Questions tagged [rangefinder]

A rangefinder is any device that can measure the distance from the observer – the device itself – from a target. This includes sonar, LIDAR, 2D and 3D laser range scanners, time-of-flight cameras, etc.

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Why do robots need rangefinders while animals don't?

Will vision based system eventually prevail rangefinders based systems given that the most successful autonomous agents in the world like animals use primarily visions to navigate?
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What wavelengths are most commonly used in laser-scanners and LIDAR systems?

In Photography SE I've just asked LIDAR burnout; ways to check for damaging infrared lasers before shooting besides looking for posted warnings? and discussed a camera that was damaged by a self-...
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2D LiDAR (LRF) products

I'm new to the field of laser scanners, and as I browsed through the forum, I realized that people mainly use products from two brands, SICK and Hokuyo. I can't help wondering why people only use ...
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how to access uart or serial sensors?

I want to connect ir range finder (dlem 20) with system running linux kernel. It looks like they don't provide any kind of sdk or drivers for their products. So how should i get data from such sensors ...
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What is the difference between “Sharp Distance Sensors” and “Diffuse Type Sensors” and others?

Searching online I have stumbled across following type of sensors that claim to measure distance. I don't quite understand the difference between them and their pros and cons. Would appreciate if ...
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Camera selection for long range stereo vision system (up to 100 meters)

I want to implement a real-time stereo vision system for long range (up to 100m) depth estimation. I know that there are some general considerations as described in this SOV post. I have seen some ...
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real-time stereo vision system for long range (up to 100m) depth estimation

I want to implement a FPGA-based real-time stereo vision system for long range (up to 100m) depth estimation. Also, I want to use two ip cameras in the system. I have calculated depth error using the ...
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Inexpensive lidar/radar rangefinder good up to 100m? [closed]

I've been looking around for a lidar/radar rangefinder for a few months now and can't seem to find anything reasonable for my application. My requirements are pretty straightforward: 100m range I2C ...
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Typical laser scanner noise values

I am building an application that executes graphSLAM using datasets recorded in a simulated environment. The dataset has been produced in MRPT using the GridMapNavSimul application. To simulate the ...
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Lidar problems in a multi-robot setup

Consider multiple mobile bases driving around in some area. In order to get meaningful data from the lidar of each base, the sensors should be mounted as horizontal as possible. Due to safety ...
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How to connect ethernet based Hokuyo scanner?

This is a very basic beginner question, I know, but I am having trouble connecting to the Hokuyo UST-10LX sensor and haven't really found much in terms of helpful documentation online. I tried ...
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Using SLAM to create 2D topography

I have a small mobile robot with a LidarLite laser range finder attached to a servo. As of now I have the range finder side-sweeping in a 30 degree arc, taking continuous distance readings to the side ...
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Is it possible to do SLAM with few IR sensors like Buddy?

I saw Buddy's page and want to purchase for my SLAM research. However, I wonder is it possible to program Buddy for SLAM? According to Buddy's spec, they're only few IR's, sonars and a camera. As I ...
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Hector SLAM, Matching algorithm

I'm trying to understand the scan-matching part of Hector SLAM (PPT summary). It seems a little difficult to understand, in some cases, how is it possible to actually perform the alignment of the ...
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Tracking Landspeed Underwater

I am hoping someone might be able to nudge me in the right direction (apologies for the long post but wanted to get all the information I have gained so far down. Basically I am after a solution to ...
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Plastic that's transparent to IR range sensors

Sharp IR range finders are pretty popular sensors, but I usually see them externally mounted and directly exposed to the environment which makes them prone to being damaged or getting crufty. I have ...
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Hokuyo URG-04LX-UG01 and Mac compatibility issues

I've got my hands on this laser range scanner but seem to have some problem receiving any output from it. I can't find any guide on how to set it up on the internet, so I was wondering if it is even ...
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Do simple, non-sonic, omni-directional rangefinding beacons exist?

I am on a robotics team that plans to compete in a competition where one of the rules is that no sort of sonic sensor is allowed to be used. I guess that limits it to some sort of EM frequency right? ...
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Simplest way to do object tracking with a 2D range finder sensor? [closed]

My current class assignment is to program a robot through a course that includes two moving obstacles – other robots moving at constant speed around a region the one robot must get to. Since the other ...