Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

Development of a wall-climbing drone

21.03.2016

A new wall-climbing drone can approach any type of structure by flying and sticking to the target and utitlizing a pose change and perching mechanism.

The integrity of large structures like bridges, high-rise buildings, wind turbines, and large aircrafts is deeply related with security. Nowadays, due to the aging of large structures and the potential concerns about their collapse, interest in structural health monitoring has risen all over the world.


Concept of CAROS, a drone-type wall-climbing robot system.

Copyright : KAIST


The CAROS has been introduced in various media.

Copyright : KAIST

Though there has been a great deal of research on the inspection of inaccessible large structures using mobile robots, since most existing robots require the installation of additional infrastructure or use magnetic-based technology or vacuum adhesion, it is difficult to apply those technologies to structures with diverse surface shapes and materials.

Professor Hyun Myung in the Department of Civil and Environmental Engineering at Korea Advanced Institute of Science and Technology (KAIST) has developed CAROS (Climbing Aerial RObot System), which does not require installation of any additional infrastructure and which features maximized mobility and safety as a wall-climbing robot.

This robot has higher mobility than existing wall-climbing robots because it can fly. It also has an advantage in that it can restore its pose after an accidental fall due to an unexpected disturbance. Since the robot can stick to the surface, it can perform close inspection and maintenance of the structure. Firstly, the CAROS team designed and analyzed the structure/mechanism of the drone to maximize the flight stability and grip force on walls.

Secondly, they developed the algorithms of flying/climbing mode transformation and wall-climbing control, respectively. These algorithms enable the CAROS to change its mode when it meets a wall while flying. To make these algorithms, the forward and backward kinematics are derived and applied to the system. Lastly, the team developed an autonomous navigation algorithm using sensory information to recognize 3D environments.

This technology also can be used to assess the situation in a fire disaster. Previously, a mobile robot equipped with a water hose and throwing-type mobile robots were developed to extinguish the fire, but it had a disadvantage when entering and moving through narrow spaces.

The CAROS technology can be used as a surveillance robot for use in fires or disasters, as it can pass through narrow indoor environments by changing its mode from wall climbing to flying, and vice-versa, depending on the situation. If CAROS is equipped with a thermal camera, it can detect and track humans through thermal images. In addition, it can transmit environment information by wireless communication.

Currently, FAROS (Fireproof Aerial RObot System) is being developed based on the CAROS that can both fly and climb the vertical wall to overcome narrow or destroyed spaces caused by fire. The robot body is covered with aramid fiber to protect its electric components and mechanical parts from the direct effects of the flame.

Under the aramid fiber-based armor, there are buffer air layers and a Peltier element-based cooling system that help to maintain the air layer within a specific temperature range. For autonomous navigation, the FAROS estimates its pose by utilizing a 2D laser scanner and an IMU (Inertia Measurement Unit) sensor installed in FAROS. With the localization result and a thermal imaging camera installed on FAROS, the robot can also detect and localize the ignition point by dedicated image processing technology.

These technologies are expected to be applied to the inspection or maintenance of structures and objects in remote or inaccessible regions. Such technologies can also be applied to various types of maintenance of urban structures such as inspection of wind turbine blades and cleaning of high-rise buildings and solar panels.

Professor Myung said, “As cities become more crowded with skyscrapers and super structures, fire incidents in these high-rise buildings are massive life-threatening disasters. FAROS can be aptly deployed to the disaster site at an early stage of such incidents to minimize the damage and maximize the safety and efficiency of rescue mission.”

Due to its novelty and potentiality, CAROS and FAROS have received media attention internationally, and the team has applied for related patents.

This research was presented at the Int’l Conf. on Control, Automation and Systems (ICCAS) 2015 held in Busan, Korea, where the research team was awarded the Best Presentation Award.

This research was funded by the KAIST Initiative for Disaster Studies and KAIST Institutes(KI).


Associated links
Original article from Korea Advanced Institute of Science and Technology

Lan Yoon | Research SEA
Further information:
http://www.researchsea.com

Further reports about: KAIST climbing drone high-rise buildings mobile robots wind turbine blades

More articles from Power and Electrical Engineering:

nachricht Balancing nuclear and renewable energy
26.04.2018 | DOE/Argonne National Laboratory

nachricht Industrial Maturity of Electrically Conductive Adhesives for Silicon Solar Cells Demonstrated
25.04.2018 | Fraunhofer-Institut für Solare Energiesysteme ISE

All articles from Power and Electrical Engineering >>>

The most recent press releases about innovation >>>

Die letzten 5 Focus-News des innovations-reports im Überblick:

Im Focus: Why we need erasable MRI scans

New technology could allow an MRI contrast agent to 'blink off,' helping doctors diagnose disease

Magnetic resonance imaging, or MRI, is a widely used medical tool for taking pictures of the insides of our body. One way to make MRI scans easier to read is...

Im Focus: BAM@Hannover Messe: innovative 3D printing method for space flight

At the Hannover Messe 2018, the Bundesanstalt für Materialforschung und-prüfung (BAM) will show how, in the future, astronauts could produce their own tools or spare parts in zero gravity using 3D printing. This will reduce, weight and transport costs for space missions. Visitors can experience the innovative additive manufacturing process live at the fair.

Powder-based additive manufacturing in zero gravity is the name of the project in which a component is produced by applying metallic powder layers and then...

Im Focus: Molecules Brilliantly Illuminated

Physicists at the Laboratory for Attosecond Physics, which is jointly run by Ludwig-Maximilians-Universität and the Max Planck Institute of Quantum Optics, have developed a high-power laser system that generates ultrashort pulses of light covering a large share of the mid-infrared spectrum. The researchers envisage a wide range of applications for the technology – in the early diagnosis of cancer, for instance.

Molecules are the building blocks of life. Like all other organisms, we are made of them. They control our biorhythm, and they can also reflect our state of...

Im Focus: Spider silk key to new bone-fixing composite

University of Connecticut researchers have created a biodegradable composite made of silk fibers that can be used to repair broken load-bearing bones without the complications sometimes presented by other materials.

Repairing major load-bearing bones such as those in the leg can be a long and uncomfortable process.

Im Focus: Writing and deleting magnets with lasers

Study published in the journal ACS Applied Materials & Interfaces is the outcome of an international effort that included teams from Dresden and Berlin in Germany, and the US.

Scientists at the Helmholtz-Zentrum Dresden-Rossendorf (HZDR) together with colleagues from the Helmholtz-Zentrum Berlin (HZB) and the University of Virginia...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

VideoLinks
Industry & Economy
Event News

Invitation to the upcoming "Current Topics in Bioinformatics: Big Data in Genomics and Medicine"

13.04.2018 | Event News

Unique scope of UV LED technologies and applications presented in Berlin: ICULTA-2018

12.04.2018 | Event News

IWOLIA: A conference bringing together German Industrie 4.0 and French Industrie du Futur

09.04.2018 | Event News

 
Latest News

European particle-accelerator community publishes the first industry compendium

26.04.2018 | Physics and Astronomy

Multifunctional bacterial microswimmer able to deliver cargo and destroy itself

26.04.2018 | Life Sciences

Why we need erasable MRI scans

26.04.2018 | Medical Engineering

VideoLinks
Science & Research
Overview of more VideoLinks >>>