Robot communicates nonverbally

If robots one day at home and in public as a normal part of human society are accepted, they must be intuitiveto human action and respond to behave so that people understand it easier. At this year's "Human-RobotInteraction Conference (HRI) of the IEEE in La Jolla, California, researchers are now presenting the latestadvances in this field.Various scientific teams have long been looking for ways in which robots the subtle side of human nonverbalcommunication can detect and imitate: eye movements, gestures and physical contact. Mastering machinesonce these social niceties, which could help them, language issues and to work on human needs and respondto commands more precisely. This could be of enormous importance, experts believe, should actually robots inthe next few years, personal assistants, teachers or care assistance.Researchers at Carnegie Mellon University presented at the HRI first details of their experiments on a robot thatuses eye movements to the flow of communication with several people to steer. The technique was developedin collaboration with researchers from Osaka University and ATR Intelligent Robotics and CommunicationsLaboratory. The approach is intended, inter alia, for robots, as the receptionist in buildings or shopping malls, amuseum guide or tour guide work."The goal is to human communication mechanisms to be applied in robots so that human behavior correctlyinterpret and respond appropriately," says Bilge Mutlu, a member of the Carnegie Mellon team. "We want toeventually not unsociable, shy robot."The machine sounds from the experiments on the name Robovie and was previously developed at ATR. Thusthe robot language and views can combine, researchers developed the first accurate model of how people havetheir eyes during a conversation or discussion use. They dealt with the current literature in the field of socialcognition research, in order to develop predictive models to be able to. These were then further refined in thelaboratory data. All of that flowed into a software, which Robovie conversation in different scenarios can control.In the experiments, the machine played the role of a travel agency employee, the two trial participantswelcomed imagined them and then a series of questions, where they would like to outward. Three scenarioswere examined: the speech of a person, while others were ignored, the speech of a person, while the other withshort glances were perceived and the speech of both persons simultaneously, each with the same amount ofeye contact.The team found that the Robovie conversation flow easily, and could even lead. Those who are the robot thatwas longer, spoke more often, while those with only brief glances abbekamen, were less communicative. Thetest subjects were ignoring Robovie spoke as expected least. These patterns were roughly 97 percent of casesconsistently. In the future still looks Robovies for more non-verbal signals are added, such gestures.Another team, at the HRI conference attended by focusing on simple physical contact. With the help of a small,remote-controlled humanoid robot led researchers from the Netherlands through an experiment in which theyshowed how the robot volunteers convinced that he had them in the use of a computer could help. The testsubjects reported that the machine they like and less reliable machines happens, if this is made by offeringassistance and direct physical contact started - such as a knock on the shoulder or the high-five gesture. "Asnoted, that the way in which such behaviors are combined, plays an important role," says Henriette Cramer, aresearcher at the University of Amsterdam. Their team goal was to find out when and what physical contactworks. "We think that touch is an important aspect of interaction, and we want to further investigate effects -particularly in combination with other social behavior," she added."We want these robots to real human-like social skills lend," says Yale professor Brian Scassellati, Co-Directorof the HRI program. The field is still young, but it is growing fast. They can also learn much about human socialpsychology. "Actually, we have over the last decade, the necessary computing power and exercise capacity inthese machines, to really move forward."

Robots for battlefield medics

The first 30 minutes after an injury in combat is critical then decides whether a soldier survives or dies. For a wounded care, however, must be first discovered and then often under heavy bombardment to be evacuated. That can cost minutes of the paramedics and even to make targets.

Researchers at Carnegie Mellon University (CMU) are developing a technology so that military doctors a helping hand - and in the truest sense of the word. Howie Choset, a lecturer in robotics at CMU, has a snake-like robot developed the various sensors includes the health of a soldier can monitor. The system can be wirelessly via joystick control, so a doctor in a distant hospital every point of the body, and may investigate to injuries during the evacuation to investigate. The flexibility of the arm allows that he is also moving in tight spaces, making even an initial medical review directly on the battlefield is possible.

Choset and his colleagues already are building for more than ten years of such "Snakebots, improve their movement potential and flexibility. Also it is a prototype for several miniaturization noted. In the past, the group has already robots for search and rescue missions and helped to create the Ford, a snake robot for precise auto painting to develop. The team also recently founded a start-up, one of the latest technologies from the laboratory Chosets commercialize be: A robot, which potentially serve as a heart surgeon could.

Currently, the CMU team with the Center for Telemedicine and new technology (TATRC) of the U.S. Army to make the robot arm in the high-tech grave of the Force to integrate. This so-called "Life Support for Trauma and Transport System (LSTAT) is a kind of portable intensive care unit with an integrated defibrillator, ventilator and a variety of physiological monitoring devices. The LSTAT is already used in several combat zones in Iraq and Afghanistan - medics can make a few patients with the built-up and technique to use his pension.

"There are all these sensors on board, with which we have preliminary diagnostic testing. It also helps us, the system first measures in order to save the patient," Choset said. The only problem was that the sensors on LSTAT appropriate and that they must move by hand. "If someone has been taken and we will help him become a target itself becomes light. That's why we wanted to automate the entire system and the sensors with the help of robotic technology to the patient to move while he was out of the battle area is taken."

Choset and his students have a very jointed arm created from multiple joints is driven, which gives a snake-like flexibility. Each joint has two of freedom, which, taken together, bending, pulling and turning movements in various configurations allow how she knows of reptiles.

Because it is impossible for a person, all of these joints by hand to steer, the team developed a software to precisely control the robot by joystick movements possible. In laboratory tests, the researchers were able to successfully arm the body during a skeleton entlangführen. An attached camera allowed the prosecution in the distance.

Choset has various physiological sensors attached to the robotic arm, including a CO2 and oxygen detector that can determine whether breathing is present. Also the robot could be an oxygen mask put on by him or a connection to the ventilation device, without the paramedics would have to help.

In future, even Choset ultrasonic components are integrated so that a patient quickly to internal bleeding can be checked. His team is collaborating with researchers at Georgetown University in a relevant essay. This is the useful, the robot needs a certain strength Sensibilitiäts ratio, to determine what force Aufdrücken when the probe on the body must be used, in order to get good pictures. This will Choset, along with other questions will soon investigate.

Sylvain Cardin, a senior researcher at the Medical Robotics TATRC, provides yet another military applications for the robot arm. "He could be sitting in a small vehicle that you send into battle area, and one medic, one might take the injured from the same remote support." Since then it does not matter whether the person still located under attack: "You can save people without having to sacrifice themselves to become.