2
votes
1answer
45 views

Role of Neuromorphic Computing and Quantum Computing in the field of Robotics and AI

I asked a similar kind of question some time ago (Neuromorphic Engineering and Robotics) Since then, many things have come to the point of revelation. A road-map for neuromorphic computing was ...
1
vote
1answer
34 views

robot control law - control theory vs optimal control

For a robot, say path planning in particular, what are the pros and cons of choosing classical control theory or optimal control (LQR for example) ?
0
votes
3answers
31 views

Radio-control over dozens of kilometers and mountains

I am wondering what technology should I use to transmit data (enough for controlling the robot and receiving video) over dozens of kilometers and mountains ?
0
votes
3answers
35 views

what is the minimum number of RC channels required to control Quad Copter?

Most of the blogs/website say we need minimum of Four channels for a quadcopter (pitch, roll, throttle, yaw): One channel for throttle second channel for turning right and left. third channel for ...
1
vote
4answers
57 views

PID output does not reach setpoint precisely enough

I'm developing/tuning a software PID for a quadcopter. For now I'm only trying to stabilise the pitch angle using the front and back motors, and I'm only looking at Kp. The motors have a control ...
0
votes
1answer
38 views

Why does iRobot not sell the Create in Europe?

I'm trying to find a good beginners platform to use ROS with, and I came across the iRobot Create. To my surprise, they do not sell in Europe. Why is that?
2
votes
3answers
44 views

Crimp or Solder to LiPo Battery?

So, I'm planning out my second hobby robot(I'm 15). I am planning on using a 7.4V LiPo battery and my idea is to solder on a 3-pin header to connect to the electronics. Anyways, should I solder to ...
0
votes
2answers
43 views

Position and Object Data Tracking

I'm new to robotics, so I'm not sure how to do this. For a class project, I'm trying to measure 1) the position of a moving weight stack and 2) the value of the weight based on a calibrated/preloaded ...
1
vote
2answers
44 views

Wire gauge for hobby robot question

So, i'm making my second ever hobby robot(I'm 15) and am planning on soldering my own connectors for the battery, sensors, Arduino, etc. It will be a small mobile robot. Anyways, I was wondering what ...
1
vote
1answer
90 views

How to know what motor/ESC/propeller combination will work for a quadcopter?

I am preparing for my first quadcopter build and need to know how to tell what motors/ESC's/propellers will work with each other. I also would like to know how to tell what the motors would be capable ...
0
votes
2answers
29 views

Datasheet for Taos TCS3200 GY-31

Can someone please post the datasheet for the colour sensor mentioned above. All i can find is for TCS3200
2
votes
1answer
52 views

Quadcopter Throttle and PID mixing to Motor Speed

I've been writing some quad copter software and I am not sure what the best way is to map the throttle and PID inputs to ESC power. My throttle range is 0-1 and my PID outputs are 0-1. My ESC's have ...
2
votes
1answer
58 views

Point tracking from a mobile robot

How can I track a fixed point $P=(x_P, y_P)$ from a moving robot? Coordinates of $P$ are relative to the state/pose of the robot (x axis looks forward the robot and y axis is positive on the right ...
1
vote
4answers
79 views

How to turn a rover 90 degrees using wheel encoders?

I have a four wheel DC rover with two optical wheel encoders. I'm executing rover turns by controlling the direction of wheel motion on either side of the rover. To turn left, all wheels on the left ...
2
votes
2answers
67 views

differential drive PID controller

I have a differential drive robot that works fine (good PD parameters) driving at say 1 m/s. Now, if it speeds up (to 1.2 m/s) it starts wobbling again. What would be a good strategy for a controller ...
3
votes
2answers
45 views

NXT Segway problem. Need advice/help

I'm attempting to build a segway robot using a gyrosensor and accelerometer. I'm having trouble getting the robot to remain standing, for some reason, and I can't identify the problem. Here's what I ...
0
votes
1answer
64 views

Building a robot that can explore a certain region

I am thinking about making a robot that can explore a certain region, not too big, (https://goo.gl/maps/3nMU4) and know where certain locations are (School, Buildings, Dining room(This is a boarding ...
0
votes
2answers
25 views

Is it possible to record only incoming data with realterm?

I am trying to test a sensor circuit I'm working on. Essentially, I am using RealTerm to send commands to the microcontroller and it is returning the value read by the sensor. When logging to a file ...
3
votes
1answer
61 views

Computing inverse kinematic with jacobian matrices for 6 dof manipulator

I'm trying to calculate the inverse kinematic for an 6 dof manipulator. Task: A target point $p_{target} = (x,y,z)^T$ and the orientation $o_{target} = (a, b, c)^T$ are given and I want to get the ...
1
vote
1answer
37 views

What are the advantages of using the Denavit-Hartenberg representation?

When one wants to model a kinematic chain and in particular define the frames attached to each body, it is common to use the Denavit-Hartenberg parameters. What are the advantages of this ...
-1
votes
0answers
25 views

Multi coloured lines following robot using arduino

For my final year project I have to build a colour lines following robot. Different coloured (minimum 7) 2cm tapes will be placed on a white/black regifoam. All the tapes will start from the same ...
2
votes
1answer
68 views

What is the Name of the part I'm describing

I'm looking for a part that will do a particular function. It has to be able to move along one axis and tell me the force that is being exerted on it. Kind of how like a piston moves inside an ...
1
vote
1answer
78 views

Maximum Distance using Ultrasonic sensor Arduino

What is the maximum distance (of say , a car ) you could measure using an ultrasonic sensor that would be compatible with arduino? Is there any sensor(ultrasonic or not) that could measure the ...
1
vote
0answers
45 views

Robot start-up movement problems

I have created robot using a robot chassis kit from hobbyking. At first when testing the robot connected to USB power source and the wheels lifted above the ground everything seemed to be OK. Then, ...
0
votes
1answer
23 views

What different sensing approaches are used in the current batch of indoor 3D cameras?

I'm aware of the PrimeSense camera powering the Kinect. Are more advanced sensor types available now in the < $500 range? For example, has there been any sort of game-changer in structured light ...
2
votes
0answers
36 views

Using robotic simulator for prediction step in probabilistic localization approaches

Probabilistic localization approaches like Kalman or Monte Carlo benefit from an accurate prediction step. The more accurate the prediction step, the more accurate is the belief of the robots pose. In ...
1
vote
2answers
32 views

How to use scan command in Arduino WifiBee

We want to find available WiFi networks near. So in tutorial there is command scan, which is send from CoolTerm program from PC. http://www.dfrobot.com/wiki/index.php/WiFi_Bee_V1.0_(SKU:TEL0067) Now ...
3
votes
0answers
24 views

Is there an analytical solution for inverse kinematics of a 6 DOF serial chain?

Let's take a 6 DOF robotic structure. It's consisting of the 3 DOF global structure for the position - and the 3 DOF local structure for the orientation of the endeffector. If the last 3 axis (of the ...
1
vote
1answer
24 views

What's the difference between CAN's Motor Max Velocity vs. Profile Max Velocity?

CAN301/402 provides Max Motor Speed (0x6080,0x00) and Max Profile Velocity (0x607F,0x00). In profiled motions, the maximum speed is limited to the lower of these two values. In non-profiled motions, ...
1
vote
1answer
27 views

What's a good pose estimation method for high precision (<5mm per-axis) solutions at short range (<50cm)?

I'm trying to get a 6DOF pose solution for an object that'll be between 10 and 50 cm from a fixed point. I want to avoid putting too much special hardware on the object, but extra hardware on the ...
3
votes
1answer
35 views

SCARA Arm Lead Screw Choices

I'm thinking about building a SCARA Arm to lift moderate loads(5lbs) with a high degree of accuracy. I want a relatively quick and inexpensive Z axis gantry, and I was thinking about using a lead ...
-2
votes
1answer
14 views

What are the pros and cons of fictitious play

I've been looking for articles and topics the Fictitious Play learning algorithms for my presentation I haven't found it's pros and cons Is there a book or something that I can benefit from? Thanks
0
votes
1answer
45 views

H bridge for rover

I am building a 6 wheeled rover, one set of 3 wheels will work together and other set of 3 wheels will run together, so current in each side may vary from 3A-15A(blocked rotor) and 6V i want to make a ...
1
vote
2answers
55 views

How to implement a distance proximity sensor with wider range

More in the line of robotics observing their environment, I'm trying to implement a proximity sensor that can sense objects in front of it to a least up to $-30^ \circ \space$ to $\space+30^ \circ $ ...
2
votes
1answer
33 views

Precision we can expect of an ultrasound-based localisation system

I'm considering building an absolute, indoor robot-positioning system based on ultrasound Time Of Flight. Transducers will be ordinary, narrow-band, 40 kHz ones. Based on your experience, what is the ...
1
vote
2answers
58 views

How to connect Arduino Uno3, L293D motor driver and 3 colour sensors together?

I am trying to build an autonomous multi coloured lines following robot. The parts I have bought so far include: Arduino Uno 3. 3 Colour Sensors (taos tcs 230). L293DNE motor driver. Robot chassis ...
1
vote
0answers
40 views

Power issues involving Raspberry Pi

I have a Raspberry Pi (Model B) attached to a Roomba. I'm using this part to bring the unregulated 17V+ power of the Roomba down the 5V/1A of the Pi. The problem is that the Pi will randomly reboot ...
2
votes
0answers
20 views

Multiple position estimates fusion

I have a system in which I have two separate subsystems for estimating robot positions. First subsystem is composed of 3 cameras which are used for detecting markers the robot is carrying and which ...
0
votes
1answer
31 views

How do I get started in Computer Vision? [closed]

I want to know how to write and run the correct code. I understand that I need to download OpenCV (which I have), but when I try to compile sample code - for example, Blob Detection - it doesn't ...
0
votes
1answer
54 views

Quadcopter forward speed

I am trying to better understand the dynamics of forward flight in multirotors. Assuming I have a quadcopter with 4 motor/propeller combinations capable (each) of a propeller pitch speed of, say, ...
2
votes
2answers
45 views

How does one calculate the angular motion of each node in a robotic arm

A robotic usually consists of joints with sections of possibly varying width connected together. Considering we know how much each is bent and the length of each section, and their location in 3D ...
3
votes
1answer
33 views

2D Map representation of GPS coordinates in degrees

I want to implement my own GPS navigation for a quad-copter. I can calculate and filter the GPS coordinates (latitude and longitude in degrees). I believe the easiest approach for me would be, to ...
0
votes
2answers
34 views

Battery system with and without mains voltage attached

I'm working on a project where mains voltage will sometimes be disconnected, and the system will have to run on battery for as long as possible before doing a (safe) shutdown. The desired behavior is ...
1
vote
0answers
19 views

Random number generation for Particle Filter

I implemented a bootstrap Particle filter on C++ by reading few Papers and I first implemented a 1D mouse tracker which performed really well. I used normal Gaussian for weighting in this exam. I ...
1
vote
0answers
25 views

An architecture for testing autonomous flight and sensors

I'm designing a simple autopilot software on top of Ardupilot, my goal is to possibly interface an Raspi on top of ArduPilot Mega (APM). I am stuck on setting up a simulation environment using either ...
0
votes
1answer
15 views

What are the options for a thin light source (e.g. LED)? [closed]

I'm looking to make or buy something resembling an LED, that would be thin (about 0.5mm or less) and cheap (<0.1$ in mass production). Any suggestions?
1
vote
1answer
23 views

Set CANopen Node ID of Ingenia Pluto DC Servo Drive

Does anybody know how to configure the node ID of an Ingenia Pluto DC Servo Drive? I've got a request out to their support team, but perhaps somebody here is already familiar with these drive boards. ...
1
vote
0answers
29 views

Using 3DR Radio to communicate ArduPilot Data

I am trying to send some data over to my PC from the Arduipilot, I used a Normal USB connection to send over a recurring string like this:- ...
0
votes
0answers
45 views

Need help calculating the thrust on quadcopter motors

I'm trying to calculate the lifting capability of my four quadcopter motors. I tried using eCalc but it doesn't have battery I'm using. Are there any equations to keep in mind for doing these ...
1
vote
2answers
126 views

Altitude hold for quadcopter with Accelerometer and Barometer

I wonder currently how to implement an altitude control for a quadcopter. I have atm just a barometer/GPS and an accelerometer. Barometer and GPS are relatively straight forward implemented, but not ...

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