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Best Drone or UAV Platform for deployment of Deep Learning / Reinforcement Learning

Good day, It has been a while since I last posted. I would just like to ask if anyone part of a lab or company doing research on aerial robotics has any suggestions of a good platform for deploying ...
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0answers
3 views

Understanding Impedance Control

I have a question regarding impedance control for a robotic manipulator. Given that we have a task space trajectory: $\ddot{x}^d$, $\dot{x}$ and $x$ And the dynamics model of the robot: $$\tau = M(...
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0answers
8 views

Increase frequency of status messages from UR5

I know the UR5 is sending me messages with its status (I can't yet understand them though, but I'm already working on that). However, they are too far apart to be useful: It sends them every 0.1 s. ...
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0answers
8 views

Selection of robot

For loading/unloading fixtures on the VMC machine with different weights upto 30 Kg in variable sizes (Mostly are rectangular in shape). Along with an end effector reach upto 2500mm, an air-jet system ...
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0answers
16 views

Interpret 560 byte msg from UR5 firmware 1.8 through TCP socket

I am trying to use the UR5 from my computer without having to write any script on the robot. For that, I opened a TCP socket as a client from my computer (in a C program), and the robot indeed does ...
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1answer
15 views

Arduino and stepper motor

How arduino stepper library handles stepper motor with ULN2003? I mean, for controlling stepper motor one actually needs four pwms. It can be reduced to two by encoding, or maybe even to one by using ...
1
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1answer
27 views

relationship between geometric twist jacobian and wrench

I read the robot textbook of Peter Corke and Richard M. Murray, in Peter’s, chapter 8 about jacobian, there are two jacobian, one is geometric jacobian $^0J$ from math, other is world coordinate frame ...
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0answers
17 views

Controlling a robot arm to follow an SE(3) trajectory

I have a 7-DOF robot arm, and I want it to follow a trajectory. This trajectory is defined as a dense sequence of SE(3) waypoints, which were collected by moving the robot arm manually (i.e. by ...
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1answer
18 views

Does increasing robotic arm's speed cost replayability?

i've been researching robotic arms for a personal project. I'm a computer engineering student, made some projects with arduino but my knowledge about robotics is currently limited. So i was wondering,...
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1answer
11 views

Can workspace of a manipulator change after considering its dynamics?

As per my knowledge, the workspace of a manipulator can be determined if one knows the forward and inverse kinematics. But is it possible that the workspace of the manipulator can change after ...
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0answers
12 views

How to evaluate a cost map?

I do have a cost map, which was computed from a few different characteristics of the terrain. How can I say, if a cost map is good mathematically? I can only look at it and see, that it has higher ...
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0answers
17 views

Monitoring battery voltage for interfacing with UI on QT creator

I want to be able to monitor the voltage of two 12V lead acid batteries in my system, and have the voltage reading to be displayed on a UI designed on QTcreator. One way I've thought of is to ...
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13 views

Detect drift or slippage hexapod like robot

I have an hexapod like robot that can walk. The objective is to walk straight but depending on howmuch grip some legs have the walking path may differ from the desired walking path. Let $\...
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0answers
19 views

How to find the optimal path for a line following maze robot?

First let me explain the problem. This is a maze made only out of black lines on a white surface. The robot has only a few IR sensors which can sense the position of the line. No other sensory input ...
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0answers
14 views

Constraining Field of view in visual servoing

I am using image based visual servoing using an eye-in-hand camera. However the camera's motion sometimes servos such that the image features are out of the field of view,and servoing stops. Is there ...
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0answers
9 views

Singular Configuration - Balanced Wrench F?

I've been asked to show that if a manipular is at a singular configuration, then the End Effector wrench can be balanced without any joint torques. I know that t = J*F where (t = torques, F= end ...
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1answer
20 views

Is there a way to generate power using the ocean through a floating device

Question is in the title. I know Is there a renewable way to generate energy from flotation? I'm not talking about like floating solar cells, but is there existing technology that can generate
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0answers
31 views

Problem with solution (equation) for wrist singularity

In my textbook about industrial robots it says that if the angle q5 in this robot is equal to 0, there are infinite solutions for the angles q4 and q6. I understand this part, but I have a problem ...
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0answers
24 views

Algorithms for controlling low-speed movement of gearless robots

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 ...
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0answers
39 views

What is the Extraordinary Real Fast Robots in 2020?

What is the Extraordinary Real Fast Robots in 2020? I read this article at this blog site techtokmunch. If anyone have other information about fast robots in 2020, please share. Thank you.
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13 views

Is there an open source GPS autopilot sketch for arduino that will work without a gps shield [closed]

Let me just say that I don't know if questions in this vein are accepted on this forum, so if you know how I could improve this question please let me know. Can someone suggest me an open source code/...
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1answer
45 views

How to simulate a quadcopter using robotics simulator?

I am building my own autonomous quadcopter. I wish to simulate it using V-REP/Gazebo in order to tune the flight controller. I see that there are inbuilt models but they have properties(physical ...
0
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1answer
23 views

How to deal with a joint suddenly having to make a large change in angle during linear interpolation?

After having set up the inverse kinematics for each intermediate point on a line that the tcp is supposed to travel, I encountered a problem that stops the tcp when it is supposed to travel along the ...
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0answers
5 views

loop closing in grid based fastslam 2.0

I understand how grid based fastslam 2.0 works I just would like to know how to implement a loop closure functionality in a grid-based fastslam 2.0? Since at each state we only consider the last state ...
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0answers
21 views

Use Realsense camera to get the camera image

I have to use LIDAR in my project. I was searching for some LIDARs with a camera and came across the Intel RealSense d400 series. I know it has a camera but please suggest a way to use that camera ...
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0answers
27 views

Cause of this PID behavior? [closed]

We have a PI loop on a flywheel. The loop has some odd behavior where it overshoots for 3 seconds and then corrects to the target. I have included a graph that shows what's happening P value 0.275 ...
2
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0answers
25 views

Bevel Gear Compatibility

ServoCity sells a great little 2:1 bevel gear ratio set: https://www.servocity.com/2-1-bevel-gear-set-1-4-bore-pinion-1-4-bore-spur I have it currently set up in my project and was thinking a 1:1 ...
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1answer
29 views

Planar Robot Boundary Detection

I am tasked with building a robot that needs to localise and navigate itself on a rectangular surface (like a large desk). The rectangle's shorter sides will be marked with a red tape (or with two ...
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0answers
27 views

How can a linear interpolated path be traversed without stopping at intermediate points?

Is spline-interpolation used for this? And why is the orientation interpolated
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0answers
29 views

What do I need to know about the dynamics of an industrial robot?

Apart from kinematics, what do i need to know about the dynamics and other things of a robot in order to calculate the angles of the joints for positions of the end effector exactly? that means: if i ...
0
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1answer
38 views

Advantage of Kalman filter in differential drive planar robot

We need to estimate the position and orientation of differential drive robot by using encoders and imu sensor. For this specific case, is there any advantage of using Kalman filter than taking the ...
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0answers
23 views

Drive a lead screw with 24BYJ

I'm planning to drive a lead screw on a linear guide using a 24(28)BYJ. The load will be around 400g max and only low speed is needed. I hope the motor is powerful enough. However, I'm trying to drive ...
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0answers
22 views

rosrun does not appear to do anything. Node exits immediately

I have a ROS node that seems to exit immediately or not even run at all. I have test print statements before the main loop and it never seems to get to that point. roscore is running and no error ...
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0answers
34 views

Constructing control system

The problem i have is more or less is biology related, but I can simplify the problem as such. I have a tank of water. I try to increase the concentration level of this tank of a certain substance (X) ...
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0answers
7 views

Get detections from picamera and control drone accordingly

I am working on a project where I built a drone, with a Navio 2 and RPi3B+, and now I want to be able to control it based on inputs from an object detection program. I wrote the program in Python ...
-2
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2answers
44 views

Should a walking robot necessarily be a better cleaning robot than a wheeled robot?

All cleaning robots I found so far sold in stores, for cleaning an house, are not walking robots but rather short, wheeled robots. I assume that walking robots could have way more sophisticated ...
3
votes
1answer
35 views

Driving a small motor

I am trying to drive a small motor using (software emulated PWM) from a Pi like device. I'm following a circuit that looks like this:L https://www.instructables.com/id/Raspberry-Pi-GPIO-Circuits-...
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1answer
70 views

Going from Spline to Differential Drive Command

I have a differential drive robot that needs to move along a path stored in its memory as a spline. I am currently trying to understand the mathematics of determining how much power to apply to each ...
0
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1answer
38 views

why to seal a motor shaft, or the whole motor, for underwater ROV?

I just finished a competition for underwater robots. The water is about 40-50cm in depth and 90% of the designs just exposed the thrust motors completely in the water similar to the picture below and ...
-1
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0answers
20 views

Lego Ev3 Brick Speed with Python code

If programming EV3 brick with Python is the speed reasonable for mobile differential drive robot? I mean if we use sensor fusion for encoders and imu, and also do PID speed control of wheels, and with ...
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0answers
10 views

How To Run the kuka_experimental program on github In RViz?

I have installed Ubuntu 14.04 and installed ROS Indigo in order to run the kuka_experimental source code which can be found on github. I have built the catkin workspace and compiled the ...
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0answers
12 views

rxplot battery vs time graph

this cheatsheet shows a way to plot real time. what do i type in to make a graph of battery vs time? https://mirror.umd.edu/roswiki/attachments/de/ROScheatsheet.pdf
-1
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0answers
7 views

Querying Velocity Data on iRobot

I'm modifying the driver of the CreateAutonomy code Why doesnt getVel(); publish anything? PICTURE OF PROBLEM https://github.com/AutonomyLab/libcreate/blob/ccf6d0cdc0e97d7abf170def16b0746d89b5274c/...
0
votes
0answers
16 views

Stale values in tf2 lookupTransform ROS-Gazebo

I have been trying to implement a low-level motion controller for my robot in ROS-Gazebo simulation. For this purpose, I need to convert some of my states i.e. CoM from body frame to Inertial (map) ...
0
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1answer
20 views

Path-following algorithm and suggestions for mecanum robot

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 ...
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0answers
19 views

SerialLink.ikine producing inconsistent inner coordinates - Robotics Toolbox

I'm trying to write a Matlab function that will enable me to write letters and numbers using my 6dof manipulator (RRRRRR). I have a function named gensym that ...
1
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2answers
45 views

What Software Is Used For Autonomy Software Simulation?

I don't have a physical robot but I would like to test the performance of my C++ code for odometry, SLAM, and path planning. Are there any good simulation software where I can test my algorithm ...
1
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2answers
59 views

Arduino for mobile robot

Is it possible to drive the whole mobile differential drive robot with single arduino? Sonar sensor, servo motor, two encoders, two motors, imu, etc. I mean would it give a reasonable performance or ...
0
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0answers
12 views

KUKA extra buttons in the Smartpad

I have a (KUKA KR 6) robot and in the smart pad, there are few extra buttons that can be programmed. I want to programme it for the open and close the gripper. Does anyone have some clue how to do ...
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0answers
10 views

How to design a 3-Phase InductionMotor?

In order to carry out transient analysis of 3-Phase induction motor in MAXWELL2D, we first need to use RMXpert model wherein we need to give around 59-60 different geometrical parameters that involve ...

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