New Research Brings Simulations Of Complex Objects To Real-time
Jernej Barbič and Yili Zhao of USC preseneted a paper at this years SIGGRAPH that demonstrates a method of simulating deformation of large complex objects in real-time by decomposing the mesh into several subdomains. Here is the abstract:
This paper shows a method to extend 3D nonlinear elasticity model reduction to open-loop multi-level reduced deformable structures. Given a volumetric mesh, we decompose the mesh into several subdomains, build a reduced deformable model for each domain, and connect the domains using inertia coupling. This makes model reduction deformable simulations much more versatile: localized deformations can be supported without prohibitive computational costs, parts can be re-used and precomputation times shortened. Our method does not use constraints, and can handle large domain rigid body motion in addition to large deformations, due to our derivation of the gradient and Hessian of the rotation matrix in polar decomposition. We show real-time examples with multi-level domain hierarchies and hundreds of reduced degrees of freedom.
They are also doing experiments to combine the simulation with haptic feedback to allow real-time interactions with the simulations. You can watch a video here , or visit the USC's page with the full paper here.
San Francisco Chronicle Profiles Willow Garage
The San Francisco Chronicle has an interview with Willow Garage about the PR2 robot, ROS and their dreams to create a new industry in personal robotics.
IBM's Cognitive Computing Chips: Further Reading
Earlier today IBM announced an experimental computer chip in which the computational elements and RAM are wired together much closer together than standard CPUs available today. IBM has made two prototypes of the new chip, which it calls a “neurosynaptic core.” Both are built on a standard semiconductor platform with 256 “neurons,” the chip’s computational components. RAM units on the chip act as synapses; one of the chips has 262,144 synapses, while the other has 65,536.
Nature magazine has a run down of what is new about theses chips, what they propose to achieve here .
To understand what makes this approach different you might want to read more about about the current CPU archecture model: Von Neumann, or stored-program architecture ( wikipedia ). The current model has an inherit bottleneck ( wikipedia ).
Also here is IBM's official research blog post about the announcement and they plan to release further details at the IEEE Custom Integrated Circuits Conference on September 20 in San Jose, California.
China's Mammoth Intro to Robotics
According to Xinhua, the official press agency of the government of the People's Republic of China (PRC), Taiwanese technology giant Foxconn will deploy 1 million robots over the next three years to improve efficiency and reduce labor for tasks better suited to a robot.
Foot-Bots, Hand-Bots, and Eye-Bots
Travis Deyle, at Hizook has a good run down of The Swarmanoid project. Its a co-op research funded by the European Commission to build and design a distributed robotic system. The swarmanoid that we intend to build will be comprised of numerous (about 60) autonomous robots of three types: eye-bots,hand-bots, and foot-bots.
George C. Devol, Inventor of Unimate, Dies at 99
George C. Devol, the inventor of the first robot arm: "Unimate", died on Thursday at his home in Wilton, Conn. He was 99. In May of this year, Mr. Devol was inducted into the National Inventors Hall of Fame. The citation states, in part, “George Devol’s patent for the first digitally operated programmable robotic arm represents the foundation of the modern robotics industry.”
Here is his NY Times obituary and a reprint of a Robot Magazine article titled The Rise And Fall Of Unimation . It profiles the history of Unimation, the original company Devol and partner Joseph F. Engelberger formed to produce the Unimate.
Pipetel's Pipeline Inspection Robots
Pipetel's Explorer is an un-tethered, modular, remotely controllable, self-powered inspection robot for the visual and non-destructive inspection of 6" and 8" natural gas un-piggable transmission pipelines. The most prominent reasons that render a pipeline un-piggable are flow rates that are lower than needed to propel an in-line inspection tool (pig); the presence of obstacles such as valves, mitered bends, back-to-back in and out-of-plane bends; and the cost and operational complications associated with installation of launching and receiving equipment. Explorer can also be used for distribution pipelines as a pre-inspection technology for other rehabilitation and repair techniques.
The Explorer platform uses a Remote Field Eddy Current Sensor (RFEC) which is a non-destructive inspection sensor that uses low frequency alternating current to measure wall thickness for the entire pipe circumference. Explorer also incorporates two fisheye cameras at each end of the robot that provide high quality visual inspection for locating joints, tees and other pipeline appurtenances. As an in-line inspection tool, Explorer is launced operated and retrieved under live conditions and can negotiate diameter changes, bends and tees up to 90° as well as inclined and vertical sections of the pipeline network.
Eight Tips for Optimal Machine Vision Lighting
Tips for choosing the optimal lighting solution for a machine vision application.
Modkit
Modkit is an in-browser graphical programming environment for microcontrollers. Modkit allows you to program Arduino and Compatible hardware using simple graphical blocks and/or traditional text code. You start by configuring your hardware and then writing programs for that hardware configuration. With Modkit, you are able to configure your hardware graphically. You then snap together graphical code blocks to build programs, in a graphical programming language inside your browser. Finally using the downloadable widget you then send the finished code to your physical device.
The Modkit MotoProto Shield for Arduino that makes it easy to connect up to 4 sensors and control two DC motors as well as a 16X2 character LCD. The sensor jacks accept 2.5mm cables and provide access to VCC, GND, and an analog input.
Automated Camera Movement and Tracking For Broadcasting.
The Camerobot Systems is a robot system for the automated movement of film and studio cameras in live broadcasting and/or VR sets. The robot has 7-axis, a range of 4.0 meters in diameter and has a positional accuracy of +/- 0.05 mm. The camera is also capable of object and person tracking, collision avoidance, and movement syncing with virtual environments.
Object Reconstruction And Recognition Leveraging An RGB-D Camera Like The Kinect
Recently, so-called RGB-D cameras have become available, capable of delivering synchronized color (RGB) and depth (D) information in real-time. The depth information is dense, and comes at negligible additional processing cost for the host CPU. They avoid the complexity of robust disparity map computation of stereo systems, and are much faster than laser scanning techniques. Thus, these sensors are very attractive for the computer vision community and their benefits to classical applications are worth investigating.
Open Source Snake Robots Creator Interviewed On Episode 7 Of Flexible Elements Podcast
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.
The audio is available here . With a full synopsis and links from the discussion on Sjöborg's website here.
First Autonomous Vehicle System for Row Crop Harvesting
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 European Compatible Designs Released
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 .
Robot Industry Stock Information Lacking
In early 2008 I asked my Merrill Lynch broker for a list of stocks of American robot manufacturers. He couldn't provide me with more than two. So I went online with Bloomberg and found a list of 120 companies involved with automation. When I researched them, there were only a few in the U.S. and fewer still where robotics was the principle business.
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