The newest episode of the robotics podcast, Flexible Elements, is up now. Host Per Sjöborg interviews Juan Gómez of Robotics Lab about the snake modular robots he is developing. In the Robotics Lab of his modular snakes have acquired new gates (styles of moving) that include rotating, rolling, turning, moving forward and moving backward. Everything is fully open source with full plans available for 3D printing.
Jaybridge Robotics in cooperation Kinze agricultural equipment manufacturer have unveiled the first autonomous grain cart system. The driverless system is fully controlled by advanced software and is capable of performing a complete workflow during the harvest process. This includes locating a moving harvester in the field, synchronizing with it, collecting its grain and delivering that grain to trucks near the field for transportation.
TurtleBot.eu, the official European store for Willow Garage's open source, Kinect enabled, TurtleBot have been working hard at getting the original US design compatible with EU standards. The conversion meant swapping swapping the original iRobot Create base for normal consumer Roombas as well as creating a new power board, and adapting trays.
The design plans for EU compitable power board and adapter are now available here.
The original Willow Garage design can be found here.
The Robotic Highway Safety Markers system was developed by Shane Farritor a Professor at University of Nebraska-Lincoln. The Robotic Safety Barrel (RSB) replaces the heavy base of a typical safety barrel with a mobile robot. The mobile robot can transport the safety barrel and robots can work in teams to provide traffic control. Independent, autonomous barrel motion has several advantages.
First, the barrels can self-deploy, eliminating the dangerous task of manually placing barrels in busy traffic. To save costs, the robots work in teams. A more expensive "shepherd" robot with built-in Global Positioning System (GPS) navigation would position itself precisely, and then guide the placement of less expensive units, which measure out their positions based on wheel movement (a "dead reckoning" system). In tests, the robots were able to deploy themselves just about as well as humans could place them - their big wheels let them turn on a dime.
Per Sjöborg has a series of audio interviews with leading researchers and thinkers in the field self-reconfiguring modular robotics.
On his website Flexibility Envelope he describes the field of self-reconfiguring modular robotics as the joining two elements:
The first part is Modular robotics. This is a branch of robotics that aims to build complex systems with simple components. A bit like Lego,simple pieces are,by cooperating,capable of building complex objects.
The Second part is Self-reorganization to make the units able to move among each other on their own accord and thus reconfigure themselves from one task to another without human intervention. This also allows the system created to be active and dynamic.
His audio interviews can be found on here and are a great listen.
Birgus Latro has posted a write up and several videos looking at the Cubelets KT01 Construction Kit from Modular Robotics. This is the first production run of the Cublets and was limited to just 100 kits.
Cublets are a modular robotics kit that consists of 20 magnetic blocks that can be snapped together to make an endless variety of robots with no programming and no wires. Each cubelet in the kit has different equipment on board and a different default behavior. There are Sense Blocks that act like our eyes and ears; they can sense light, temperature, and how far they are away from other objects.
IEEE Spectrum has an article by Dr Massimiliano Versace about a memristor-based approach to AI that consists of a chip that mimics how neurons process information.
Researchers have suspected for decades that real artificial intelligence can't be done on traditional hardware, with its rigid adherence to Boolean logic and vast separation between memory and processing. But that knowledge was of little use until about two years ago, when HP built a new class of electronic device called a memristor. Before the memristor, it would have been impossible to create something with the form factor of a brain, the low power requirements, and the instantaneous internal communications. Turns out that those three things are key to making anything that resembles the brain and thus can be trained and coaxed to behave like a brain. In this case, form is function, or more accurately, function is hopeless without form.
Basically, memristors are small enough, cheap enough, and efficient enough to fill the bill. Perhaps most important, they have key characteristics that resemble those of synapses. That's why they will be a crucial enabler of an artificial intelligence worthy of the term.
Kinect RGBDemo and the Nestk Library by Nicolas Burrus aim at providing a simple toolkit to start playing with Kinect data and develop standalone computer vision programs without the hassle of integrating existing libraries.
The 0.6 release includes two new demos, an interactive program to calibrate multiple RGBD cameras, and a one shot 3D model acquisition of objects lying on a table based on PCL table top detector.
Current features include:
- Grab kinect images and visualize / replay them
- Support for libfreenect and OpenNI/Nite backends
- Extract skeleton data / hand point position (Nite backend)
- Integration with OpenCV and PCL
- Multiple Kinect support and calibration
- Calibrate the camera to get point clouds in metric space (libfreenect)
- Export to meshlab/blender using .ply files
- Demo of 3D scene reconstruction using a freehand Kinect
- Demo of people detection and localization
- Demo of gesture recognition and skeleton tracking using Nite
- Demo of 3D model estimation of objects lying on a table (based on PCL table top object detector)
- Demo of multiple kinect calibration
- Linux, MacOSX and Windows support
The robotic inspector looks like nothing more than a small metallic cannonball. There are no propellers or rudders, or any obvious mechanism on its surface to power the robot through an underwater environment. A robot outfitted with external thrusters or propellers would easily lodge in a reactor’s intricate structures, including sensor probes, networks of pipes and joints.
As the robot navigates a pipe system, the onboard camera takes images along the pipe’s interior. The original plan was to retrieve the robot and examine the images afterward. But now the MIT project director and his students are working to equip the robot with wireless underwater communications, using laser optics to transmit images in real time across distances of up to 100 meters.
MAKE Magazine has a selection of ten of the most interesting robotic limbs from the archives. Including a robot sorts over 400 pancakes per minute.
- an iRobot Create
- a Kinect (modified to run off of a battery)
- a computer running all the nessecary open source software
- a small robot arm that uses geared motors, and can lift objects weighting up to 3 lbs
- and all the mounting hardware, , wiring and electronics needed to put it all together.
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