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Improvements in microfabricaton techniques and an increased understanding of insect locomotion has led to the development of impressive centimeter-sized legged robots. The cockroach-like robots seen i...
Underwater robots can be used to inspect water-bound structures such as ship hulls. Remote-operating these vehicles can be tricky if they are under-actuated, meaning you can’t fully control thei...
Although human hands have lots of degrees of freedom, we typically don’t use most configurations. For example, we usually don’t move the last two joints of our fingers independently. Now l...
Learning how to perceive shapes and act on them is what allows us to interact with our world. Whether it’s grasping for an object, drawing or dancing.
With this in mind, Mohan et al. have been ...
For a long time, robots were seen as rigid machines driven by sturdy motors. This raised worries concerning the safety of people interacting with them. One option to make robots safer is to equip them...
As robots enter our industries and homes, they will be required to manipulate a large diversity of objects with unknown shapes, sizes and orientations. One approach would be to have the robot spend ti...
Service robots entering our homes will need to map their environment and figure out their location as they move around. Previous articles discussed Self-Localization And Mapping (SLAM) approaches that...
Have you ever skied down an immaculate white slope? Hard to see the bumps, right?
The same is true for the Yeti robot that needs to drive through polar regions that feature obstacles, slopes and diffe...
Robots that have an internal model of their body could potentially use it to predict how a motor action will affect their position and what sequence of actions will bring them to a desired configurati...
The HUBO FX-1 is a two-legged robot with a cockpit area to carry passengers. Besides being very entertaining to ride around in, the robot could also be used to help wheelchair-bound people regain mobi...
http://www.youtube.com/watch?v=O2OQxHNVLNY
In this recently released TED talk, Dennis Hong from VirginiaTech presents all the recent developments of his RoMeLa Robotics & Mechanisms Laboratory...
Groups of robots that move in precise formations could be used to sense an environment from multiple points of view or navigate a warehouse in a compact manner. The challenge is to build formations in...
Maverick is a small uav made by Prioria, a company founded in 2003 by business and engineering graduates from the University of Florida. It is portable, very light and has most of the features a comme...
We saw the need for good underwater robots during the Deepwater spill last summer. In such scenarios, a remote operator controls a robot equipped with a camera and means to build a 2D map of the envir...
Let’s say you just purchased a new service robot and you want it to be able to know its way in your apartment. The obvious thing to do would be to show it around, going from room to room saying ...
If you’re trying to get from the couch to the fridge, you’ll probably be using vision to navigate and home-in on your fresh drink.
To make your camera-equipped robot do something similar, ...
Robots with smell could be used to find sources of toxic gas, search for drugs, locate survivors under rubble or hidden mines. Robots have an advantage over sniffer dogs since they can enter dangerous...
The use of UAVs has skyrocketed, a wide variety of systems ranging from extremely small flying bots to large airframes like the Predators or Global Hawk drones is currently in use, mostly from armed ...
Robotics is a great way to engage young students in science, technology, engineering, and mathematics (STEM) subjects. With this in mind, researchers from the University of Massachusetts Lowell (UML)...
There is often a conflict between planning the path a robot should take to achieve a desired task (high-level control) and the motion control needed for the robot to follow this path (low-level contro...
Using behavior-based controllers, robots are theoretically able to rapidly react to their environment. This is typically done by having several behaviors, that map sensory input to actuator commands, ...
If you’ve never seen a video of springboks gracefully pronking, have a look below.
Pronking is a gait where all legs are used in synchrony, usually resulting in relatively slow speeds but lo...
The typical way to make a bipedal robot walk is to actuate its leg joints, strap a bunch of sensors to measure its state and add a tight control loop to make sure it is performing the desired steps.
I...
As seen in a previous post, Bayes filters such as Kalman filters can be used to estimate the state of a robot. Usually, this requires having a model of how the robot’s sensor measurements relate...
To help aging populations with mobility, researchers are developing robotic wheelchairs. Typically, control switches between the user of the wheelchair and the robot when tasks become difficult or dan...
It is often difficult to predict the high-level behavior of a robot given low-level models about sensors, actuators and controllers. You might know your robot will turn in response to obstacles but n...
Around a year ago, theater-goers at Texas A&M discovered Shakespeare’s play “A Midsummer Night’s Dream”. The plot unfolds in a magical forest inhabited by fairies. To add to th...
Kalman filters are used in robotics to correct measurement errors. Imagine trying to precisely predict the position of an outdoor robot. The robot is equipped with a GPS and is able to measure the spe...
Just the other day, a noisy helicopter was flying above campus, carrying large batches of solar panels to hard to reach rooftops. You might have also seen people dangling from helicopters in rescue mi...
Animal walking is thought to be driven by rhythmic signals sent through the spinal cord. These signals are translated to motions of the limbs. For a bipedal walker, such patterns would force leg swing...
By creating a database of human motions, Yamane et al. hope to allow robots to recognize human behaviors or move like humans. To do this, they analyze motion clips of people performing all sorts of ac...
Stochastic self-assembly is a hot topic in chemistry and biology. The general idea is that if you pour building blocks into a recipient and stir, your blocks will eventually react with one another to ...
Robots can work together to cooperatively execute tasks much faster than a single robot. In the scenario proposed by Jones et al. fire trucks are sent out to extinguish fires caused by a large-scale d...
Imagine arriving in a new city without a map. Starting from the train station, you might take a walk around the block before returning to your starting point. As you go you’ll probably start bui...
How can a robot explore and make maps of new environments while avoiding obstacles?
One way is to let the robot remain at equal distance from its two nearest obstacles, thereby navigating exactly in b...