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A step-by-step procedure for calculations. Algorithms are used for calculation, data processing, and automated reasoning.

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The Python script below is about an implementation of the consensus algorithm (rendez-vous) using static Metropolis weights for Turtlesim in ROS Noetic, run in Ubuntu 20.04 OS. The issue is that the ...
Hong Christian Lin Jiang's user avatar
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I need help in making a Line Following Robot with problem statement requires to detect a 2x2 matrix. how do i do detect it without any computer vision?. The arena looks like this PROBLEM STATEMENT: ● ...
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I am reading up on the proposed articulated body algorithm by Featherstone, which goes like: Pass 1: \begin{equation} \nu_0 = 0\\ \nu_i = {^i}X_{\lambda(i)}\nu_{\lambda(i)}+s_i\dot{q}_i\\ c_i = \nu_i \...
Josef's user avatar
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I know this question is asked before, but the reason why was still not clear to me. If you've a 6-DOF IMU, the gyroscope measures is degrees/s or radian/s. Why do we want to convert the body rates to ...
Xander van den berg's user avatar
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I have to build two robots (virtual) that will solve a grid maze that has blocked paths colored in red. The robots cannot go on these red paths in any case. There are several white patches in some ...
leahnanno's user avatar
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I built a mobile base from scratch, and now I am focused on getting the robot to charge. The robot is using an on-board webcam (and PC) to detect a QR barcode on the charger unit. Using OpenCV I find ...
Mike's user avatar
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I am working on the "CONF" parameter of FANUC Robots. The "CONF" param determine the pose of the robot (maybe to have only one inverse kinematics solution). This configuration is ...
hugosc's user avatar
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I have tested my SLAM algorithm on EuRoC, TUM and KITTI Datasets. But I would like to test on my own custom dataset. Moreover, I already rectify how to make my own dataset in TUM dataset format, but I ...
Qamar Ul Islam's user avatar
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I have a circle of radius 300 cm on whose circumference robots stop after moving in the environment. The robots only have a communication radius of 10 cm such that they can fit 6 robots along the ...
sevebebe's user avatar
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I want to run my bot over a map that has nodes and I am just stuck about how to begin the path planning, I literally searched over the internet and found so many algorithms Like A* , Dijkstra's, etc. ...
Unpared Electron's user avatar
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I'm wondering what's the best vehicle kit for testing control/navigation algorithms. I want something with some degree of hardware abstraction (in the sense of not having to write too much i/o, ...
biohacker's user avatar
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I am currently working on the "likelihood field" sensor model (aka "endpoint model") by Thrun et al. (book: Probabilistic Robotics, Thrun et al., p.169-174) In this context I have ...
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I want to perform rectangular area survey. The sensor can either work with very narrow FOV or with wide FOV but requiring very high overlap. My plane's turn diameter is much greater than required ...
Lupus the Canine's user avatar
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I am trying to simulate the experiments in the paper "Time-Domain Passivity Control of Haptic Interfaces", Hanaford and Ryu, 2002, IEEE transactions on robotics and automation vol .18, No1 about the ...
Leonardo Fagundes's user avatar
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I am currently looking for a way to do odometry using wheel encoders, for a car that has no differential drive. The two rear wheel would rotate at the exact same speed. I have been looking everywhere ...
Hoang Khac's user avatar
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Currently my setup is: 2x hobby TT motors connected to a Pi Zero with a motor HAT Python script running on the Pi which runs a Blynk python client and controls motors via the gpiozero library Blynk ...
rozling's user avatar
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Collegues, i am a little discouraged by the lack of a clearly formed section in the literature on which algorithms are used to control the low-speed movement of gearless robots. In my opinion, it is ...
ayr's user avatar
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I have a robot with four mecanum wheels (blue square) that can move in an open-space room. The position x,y of the robot is measured in a very accurate way by a fixed position sensor (red circle) that ...
Marcus Barnet's user avatar
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I have a robot with four mecanum wheels and I would like to make it move correctly by using a RC transmitter (my controller has two sticks and several buttons, each stick has a proportional range of [...
Marcus Barnet's user avatar
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Is it wise / possible to use multithreading to handle control system on robot? For example, a line follower robot with PID control flowchart would be: read_sensor() -> calculate_control() -> ...
duck's user avatar
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I want to implement a wall following controller for my TurtleBot3 (with ROS system). Sensors which I have on the robot: lidar(360) and optional 2 ultrasonic sensors on the side (one on the left and ...
Gal Bar Tov's user avatar
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I've been playing around with some block maths, mostly trying to remember how it actually works, and I've come to a simple example that should be reduced, however when doing the normal maths, compared ...
DrMrstheMonarch's user avatar
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I am using Roy Featherstone's spatial_v2 to model a mobile robot. I encountered a problem so I went back to modeling a free-floating sphere to familiarize myself with the library and the algorithms. ...
Dawi's user avatar
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I am trying to implement boustrophedon algorithm using mobile robot. Can I implement this without map? I am planning to use dimensions (x,y) of the farm as reference assuming it is rectangular in ...
Vicky 's user avatar
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As shown in the figure, there are objects of arbitrary shapes placed on the surface of the sphere at arbitrary locations. The problem is to search the surface to locate these objects in most efficient ...
ewaolx's user avatar
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I am working on motion planning algorithm for quadrotor. As I have learned in Coursera Aerial robotics course, trajectories for quadrotors should minimize snap which is equivalent to interpolating ...
Long Smith's user avatar
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I found some papers that use fuzzy logic to solve robotics algorithmic problems. But I have recently been told by a few roboticists that fuzzy logic should not be used in robotics because it has ...
user_1_1_1's user avatar
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Consider a situation where you have a 'm' number of robots and 'n' number of tasks. Each task is at a different location. What optimization algorithm should I use in order to assign a set of tasks to ...
Goalscorer's user avatar
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What is the correct algorithm name for this Shortest Path Maze Solver? The algorithm works by completing the maze and at each turn storing each of the turns in an array until the maze once the maze ...
AYE I's user avatar
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1 answer
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Trying to create an algorithm/code in order to get my robot to follow a track which it currently can do, using a color sensor and following the inside edge. So I'm wondering how to transition to the ...
OCTAVIAN's user avatar
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I am implementing the explicit complementary filter(see below) with a 9DOF MEMS sensors (accelerometer, magnetometer and gyroscope) for attitude estimation. Currently, the gyro and accel update rates ...
Nemo's user avatar
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I'm having troubles implementing a UKF during the calculation of $\overline{\mu_t}$, specifically in this step: $$\overline{\mu_t} = \sum_{i=0}^{2n}w_m^{[i]}\chi_t^{*[i]}$$ My problem I'm facing is ...
oswinso's user avatar
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1 answer
337 views

I'm trying to implement a PID based line follower. The robot has 2 line sensors with ranges from 0-200, with 0 being black and 200 being white. I'm trying to follow a black line. I'm struggling to ...
Lily Haynes's user avatar
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short version (TL;DR): I'm receiving x(t) waypoints "online", which I must travel through at the specified times. I need an algorithm that would plan a smooth trajectory in-between them without ...
Tinkerer's user avatar
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3 answers
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I have a scenario where I have multiple robots, and they have to pick and drop some items at specified locations as shown in Figure. There are 4 jobs to be done for this particular instance. How can I ...
Zain's user avatar
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2 votes
1 answer
217 views

My Code gives the following convergence characteristics, I wanted to know if it is correct Updated code { ...
Ajin2305's user avatar
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1 answer
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In the Literature I have read so far, I saw RRT star was running in multiple loops to converge to a better solution ( near optimal). I was wondering how I could implement the same, as most pseudocodes ...
Ajin2305's user avatar
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1 answer
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I have lots of doubts about GraphSLAM, The GraphSLAM Algorithm with Applications to Large-Scale Mapping of Urban Structures. When I practically implement it I get matrix singularity error. I taken ...
Encipher's user avatar
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2 votes
2 answers
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I am trying to find a solution in S(1)*R^2 (x,y, orientation) with obstacles (refer to image) using RRT star and Dubins Model. The code takes a lot of time to find a suitable random sample with x,y, ...
Ajin2305's user avatar
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1 vote
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Main Question: note: The code in this question is pseudo-code, I'm using Python, but my pseudo-code is a mix of Python and C++. I have a camera on the top of my robot's "head" which has pan and tilt ...
Paul McElroy's user avatar
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I am making a line follower to follow a white line (approx 1.7 cmm wide) on a black track. I am using an array of 5 TCRT5000 (IR led+phototransistor) to detect the line. I was previously working with ...
Prakhar Pradeep's user avatar
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I have read through lectures/ tutorials on A* but they have all been via computer simulations. I have an autonomous wheeled robot that is traversing an unknown map (essentially, it'll be a tabletop ...
Erin's user avatar
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1 answer
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I am currently working on collision avoidance using Potential fields and I have visualized the same in winfom. Now, I need to test the algorithm in predefined trajectory say a spline(or in a lane). ...
Nag's user avatar
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4 votes
1 answer
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So here is my problem. I need to grab an object with my robotic arm, but I don't know the position of the object. The only thing I know is the angle between object and gripper. You will maybe better ...
notARobor.exe's user avatar
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3 answers
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I have seen a lot of academic papers, but no framework that I can download and use. There are even projects, such as OpenCog, which might be usable in a few years. I would like to know of the ...
NomadMaker's user avatar
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The length of the last link (1.73) of my model (of a human finger) is not represented in any of the parameters that I calculated using the Denavit-Hartenberg algorithm, which I think can't be right. I ...
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1 answer
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I have been looking into non-linear control algorithms for controlling a quadcopter. I know that we have total 6 DOF for a quad (3 translation and 3 rotation) and our input belongs to $\mathbb{R}^4$, ...
Manish's user avatar
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3 votes
2 answers
258 views

I am working on writing code for a coordinated multi-robot rapidly exploring random tree (RRT) based planner, which would naturally involve a lot of sampling, nearest neighbor searching and 'radius' ...
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I wonder how to generate double s-curve velocity profile for multiple DOF trajectory. Since there are constraints on initial and final velocities which can be non-zero it is necessary to synchronize ...
Long Smith's user avatar
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I am reading particle filtering for robot localisation and specifically the resampling step to avoid particle degeneracy. Can anyone explain me what MC (Monte Carlo) variation means? I saw it couple ...
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