Archive for the ‘News’ Category

The Taiwan Earthquake: robots

We are just getting word of several building collapses in the Taiwan earthquake, here are some thoughts and data on how robots have been used in previous collapses…

Ground robots may be of the most value. In a situation like this where the building has collapsed,  small robots will likely to get into voids and go deeper than the 18-20 feet that a camera on a probe or a boroscope can go into. Note that canines would normally be used first to indicate that people are alive (if there was any doubt about occupancy). The ground robots would be used to try to localize the survivors AND allow the rescue team to at the same time understand the internal layout of the structure. If they can better understand the internal layout of the “pixie sticks” of the rubble, they can extricate the victims faster and with less chance of triggering a secondary collapse. Most of the ground robots used, such as the Inuktun series which have been used the most, have 2 way audio so the responders can talk to the victims.

With our colleague Eric Rasmussen, MD FACP, we’ve experimented with how a small robot can carry tubing allowing a survivor to have water. With members of Texas Task Force 1 medical team, we’ve experimented with how doctors can use the robot to communicate with the survivor, assess their injuries, and engage the survivors- as it may take 4-10 hours to be extracted.

Similar situations where ground robots have been used for multi-story commercial building collapses are:

  • 2001 9/11 World Trade Center collapse
  • 2010 Prospect Towers collapse
  • 2011 Christchurch earthquake

Ground robots are often not used in earthquakes, such as the Japanese earthquake, because of building resilience and codes. Residential homes are small, often wood, and fairly easy to locate victims with canine teams and then extracting. Adding a robot doesn’t really speed up anything.

UAVs can give an overview of a collapse, but generally it has been the “inside” view that responders need the most and can’t get any other way.

 

 

CRASAR donates 2 E.M.I.L.Y.s to Hellenic Coast Guard and Red Cross

On January 14, 2016, the Roboticists Without Borders program hosted by the Texas A&M Engineering Experiment Station Center for Robot-Assisted Search and Rescue (CRASAR) donated an E.M.I.L.Y. lifeguard robot to the Hellenic Coast Guard working on Lesvos Island, Greece. The Coast Guard completed training with E.M.I.L.Y. on Jan 17, 2016. Cutter 618 under Captain Nicholas took her on her first mission that afternoon for the 4:00 pm – 12 pm patrol of the straights.  On January 18, 2016, the program donated the second E.M.I.L.Y. to the Hellenic Red Cross. CRASAR has been assisting the Hellenic Red Cross and ProActiva lifeguarding teams (see http://crasar.org/?p=1980 for details and video).

 

This reflects an evolution in robotics, both in cost and usability, and a new era for CRASAR of donating robots. When CRASAR was first established, small land and marine robots were prohibitively expensive, costing between $35K and $400K and often unreliable with less than 20 hours between failures. Small aerial systems had not been invented. Independently of cost, there was a second barrier: robots required experienced operators with many days, if not weeks, of training, especially on maintenance. Therefore it was important for CRASAR to not only provide robots but provide experts who could effectively work side-by-side with the responders in disaster conditions. It wasn’t feasible to just hand the technology to responders in the Cold Zone and wave bye-bye.  Now robots are coming down in price plus are much easier and intuitive to operate and maintain and are more reliable. Thus with robots such as E.M.I.L.Y., it is possible to train the responders in the field and let them use it directly without having to incur the  distraction, logistics, and liability of embedding an outsider.

 

Our mission is to speed adoption and assist responders, not be responders, and it is gratifying to see the technology reach a point where this is becoming possible. One thing hasn’t changed since 2001 and that is the generosity of our Roboticists Without Borders members. Hydronalix CEO Anthony Mulligan donated 2 E.M.I.L.Y.s, plus travel and expenses for himself and the two operators/trainers. He deserves many kudos for his big heart and commitment!

 

Here are pictures of the EMILY with the crew of Cutter 618:

 

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Here are pictures with the Hellenic Red Cross team:

 

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Summary of 47 Known Disaster Robot Deployments 2001-2015

 

This is a 15 minute talk I gave (virtually) at the World Engineering Conference and United Nations World Conference on Disaster Risk and Reduction in Japan. It was a talk for a general audience and while there is nothing new, it does provides

  • an introduction to disaster robotics,
  • how many times and where robots have been used,
  • what they have been used for (and what they could be used for), why they aren’t used more frequently, and
  • my recommendations.

Much of the material is captured in detail in Disaster Robotics, MIT Press.

Robots for earthquakes- history of use of ground, aerial, and marine systems plus best practices

Our hearts go out to the victims, families, and responders in Afghanistan and Pakistan. Here are links to

And from our home page, here are helpful 1 page guides and best practices for small unmanned aerial systems that have been incorporated into United Nations humanitarian standards and are continuing to evolve:

Texas Floods: How small UAVs have been used at 9 floods in 6 countries. Don’t forget about UMVs!

Note: this is a long blog with sections on best practices, where SUAS have been used (and for what missions), the flood of data that interferes with making the most of UAS data and how computer vision can help, and unmanned marine vehicles.

CRASAR is standing by to assist with the flooding in Texas with small unmanned aerial systems (UAS/UAV) and unmanned marine vehicles. Johnny Cash’s song “How High The Water Momma” comes to mind. We’ve been working with floods since 2005 and in July offered a class on flying for floods.

The rain is still too heavy to fly in most affected parts. Coitt Kessler, Austin Fire Department, is coordinating the use of small UAS with the State Operations Center and has been working tirelessly since Thursday. CRASAR is offering the Texas A&M team and the UAVRG team at no cost through the Roboticists Without Borders program. We also hope to try out an app of coordinating small UAS from the newest member of Roboticists Without Borders, Akum.

Hey- If you want to volunteer to fly, please do not fly with out explicitly coordinating with your local fire department and confirming that they in turn have followed standard procedures and coordinated with the state air operations (this is a standard ICS practice and should only take them a few minutes), otherwise there may be a repeat of the dangerous situation where  a) low flying helicopters and SUAS are working too close to each other and b) the data collected was either the wrong data or never made it to a decision maker.  Dangerous situations happened at the Boulder floods and several times in the Texas Memorial Day floods- it shuts down the helicopter operations.  And remember, it hards to become the fire rescue equivalent of a deputy without have met and worked with the fire rescue department- so it may not be realistic to expect to help with this disaster.

Best Practices

Here are links to our best practices for picking UAVs and payloads for disasters:

Where Small UAVs Have Been Used

Small UAVs or UAS have been used at least 9 disasters from flooding or had flooding associated with it: Hurricane Katrina 2005 (the first ever use of a small UAS for a disaster, which was by CRASAR), Typhoon Morakot, Taiwan 2009, Thailand Floods 2011, Typhoon Haiyan Philippines 2013, Boulder Colorado floods 2013, Oso Washington Mudslides 2014, Balkans flooding Serbia 2014, Cyclone Pamela Vanuatu 2014, and the Texas Memorial Day Floods 2015.  CRASAR participated in 3 of the 9 events.

SUAS missions at these floods have been:

  • situation awareness of the flood, affected transportation, and person in distress
  • hydrological assessment- where’s the flooding, state of levees, etc.? Texas has levees that impact people (think New Orleans and Katrina) but also livestock. Another use of small UAS is to determine why the floods are flooding where they are. In the Balkans flooding, the ICARUS team used their UAS and found a illegal dike that was preventing public works engineers from draining the area.
  • searching for missing persons presumably swept away- that was the major use of small UAS at the Texas Memorial Day floods
  • deliver a small line to persons in distress so that they can pull up a heavier line for help- this was also done at the Texas Memorial Day floods
  • debris estimation in order to speed recovery

SUAS proposed, but never flown to the best of my knowledge at an actual disaster (remember a patch to anyone who can help me keep the list of deployments up to date!), missions have been:

  • home owner and business insurance claims- many insurance carriers are actively exploring this and this was a big topic with at our 2015 Summer Institute on Flooding
  • carry wireless repeaters—this was actually done with manned aircraft from the Civil Air Patrol during the Memorial Day floods. The greater persistence and distance may keep that in the CAP list of responsibilities

The Flood of Data and the Promise of Computer Vision

The biggest challenge in using UAS is not flying (or regulations) but rather the flood of data. As I noted in my blog on our Summer Institute on flooding, one of our 20-minute UAS flights for the Texas Memorial Day floods produced roughly over 800 images totaling 1.7GB. There were over a dozen platforms flying daily for two weeks during the floods as well as Civil Air Patrol and satellite imagery. Most of the imagery was being used to search for missing persons, which means each image has to be inspected manually by at least (preferably more). Signs of missing persons are hard to see, as there may be only a few pixels of clothing (victims may be covered in mud or obscured by vegetation and debris) or urban debris (as in, if you see parts of a house, there may be the occupant of the house somewhere in the image). Given the multiple agencies and tools, it was hard to pinpoint what data has been collected when (i.e., spatial and temporal complexity) and then access the data by area or time. Essentially no one knew what they had.  Agencies and insurance companies had to manually sort through news feeds and public postings, both text and images, to find nuggets of relevant information.

Students from our NSF Research Experience for Undergraduates on Computing for Disasters and our partners at the University of Maryland and Berkeley led by Prof. Larry Davis created computer vision and machine learning apps during the Texas floods. The apps searched the imagery for signs of missing persons, including debris that might have been washed away with them and piles of debris large enough to contain a victim. The students also created visualization packages to show where the UAS and other assets had been and what data they had collected.

Don’t Forget About Unmanned Marine Vehicles

As I described in a previous blog on Hurricane Patricia, unmanned marine vehicles have been used for hurricane storm surges but not for flooding. They would be of great benefit for inspecting underwater portions of critical infrastructure such as bridges and pipelines. There’s even EMILY a robot super floatation device that can zoom out to where people are trapped.

 

 

Four Surprises about the Use of Unmanned Ground, Aerial, and Marine Vehicles for Hurricanes, Typhoons, and Cyclones

Hurricanes, typhoons, and cyclones form a category of meteorological events referred to as cyclonic activity.  They damage large areas and destroy the transportation infrastructure, interfering with the ability of agencies to find and assist people in distress, restore power, water, and communications, and prevent the delivery of supplies. As I describe in my TED talk, it can take years for a community to recover- the rule of thumb developed by disaster experts Haas, Kates, and Bowden in 1982 is that reducing the duration of each phase of disaster response reduces the duration of the next phase by a factor of 10. Thus, reducing the initial response phase by just 1 day reduces the overall time through the three reconstruction phases to complete recovery by up to 1,000 days. The sooner emergency response agencies can use unmanned systems, the faster they can respond and we can recover from a disaster.

There are three modes or types of small unmanned vehicles or robots: ground, aerial, and marine systems. Small vehicles have the advantage that they are easy to carry in an SUV or a backpack and deploy on demand when the field teams need them, which the military would call a tactical assets. Larger unmanned systems such as the National Guard flying a Predator to help get situation awareness of several counties or provinces requires much more coordination and planning (and expense); these are strategic assets.

Here are four surprises about small unmanned vehicles for cyclonic events (I’ll be adding links to videos through out the day):

1. Small unmanned ground, aerial, and marine systems have been reported at 7 hurricanes since the first use at Hurricane Charley in 2004.

These events are Hurricane Charley (USA, 2004), Hurricane Katrina (USA, 2005), Hurricane Wilma (USA, 2005), Hurricane Ike (USA, 2008), Typhoon Morakot (Taiwan, 2009), Typhoon Haiyan (Philippines, 2013), and Cylone Pam (Vanuatu, 2015).

2. Ground robots are generally not useful.

Ground robots have only be used at 2 of the 7 events: Charley and Katrina. Cyclonic activity tends to damage or destroy swaths of single story family dwellings, not multi-story commercial buildings. If houses are flattened, the debris is not more than 20 feet deep, so traditional techniques work. If houses or apartments are damaged but standing and there is a concern that people are hurt inside, canines can determine in seconds if a person is inside. A door or window would have to be breached to insert a robot (or a person), which means the apartment would then be open to robbers. We learned that while helping Florida Task Force 3 search the retirement communities in Florida affected by Hurricane Charley in 2004. Florida Task Force 3 did use a robot to enter two apartment buildings that were too dangerously damage to enter during Hurricane Katrina, but they didn’t have a canine team which is now generally considered the preferred method.

3. Marine vehicles may be the most useful kind of robot for both response and recovery.

AEOS-1 with accoustic imager inspecting underwater portion of bridge

AEOS-1 with accoustic imager inspecting underwater portion of bridge

Marine vehicles have been used for only 2 of the events, Hurricane Wilma and Hurricane Ike, but could have been effective for all 7. Hurricanes and Typhoons are a double whammy for marine infrastructure- the underwater portion of bridges, seawalls, pipelines, power grid, and ports. First the event creates storm surges along the coast, then flooding occurs inland and hits the coast again.  Bridges and ports can appear to be safe but the surge and flooding can have scoured the ground from under the pilings, leaving them resting on nothing. Debris can have broken off a piling underwater, creating a hanging pile. This means that transportation routes can be cut off during the response, hampering the movement of responders but also hampering bringing in enough food and supplies to feed a country, such as at the Haiti earthquake, which is normally done with ships.  The economy can’t recover until the infrastructure is back in place.

Checking for these conditions is typically done with manual divers but the conditions are dangerous- the current is still high, the water is cloudy and debris is floating everywhere, and divers often have to resort to feeling for damage. There are few divers and it can take months to schedule them, as we saw at the Tohoku tsunami. Marine vehicles, both underwater and on the surface, can be outfitted with acoustic imagers that act as a combination of ultrasound and a camera to check for these conditions. In Japan, we re-opened a port in 4 hours versus weeks by a dive team, and dive teams would not be able to start work for six months after the disaster. The six month delay would have caused the city to miss the salmon fishing season, which is the big economic driver for the region.

See UMV and UAV at Hurricane Wilma here.

4. Small unmanned aerial systems have been used the most frequently of the three types of robots.

SUAS have been used in all but two of the 7 events, Hurricane Charley and Hurricane Ike. Small UAS were still experimental in 2004 when Hurricane Charley occurred but the next day after our experiences as part of Florida Task Force 3, I called Mike Tamilow at FEMA and offer to make introductions to facilitate use for the next hurricane. Unfortunately it wasn’t until next year and several hurricanes later that SUAS were used for Katrina by us and other teams from the Department of Defense. Despite the success of these deployments, SUAS didn’t really take off (pun intended) until 2011 when the technology had matured and come down in price.

9/11: Even the smallest act of service…

In 2011, President Obama remarked “even the smallest act of service, the simplest act of kindness, is a way to honor those we lost, a way to reclaim that spirit of unity that followed 9/11.”

The 9/11 World Trade Center was the first use of robots for the response to a disaster and paved the way for over 47 deployments of land, sea, and aerial robots in 15 countries. It was a small act of service led by John Blitch, the director and founder of CRASAR, with robots helping to comb the rubble in places people and dogs could not go and places still on fire from the jet fuel. It is in honor of those victims and the over 1 million people killed or 2.5 million displaced by disasters each year that all of us at CRASAR and Roboticists Without Borders continue to promote the use of robots for disaster prevention, response, and recovery.

#wewillnotforget

ICARUS: European Union Moves Robot-Assisted Search and Rescue Forward!

I had the pleasure of attending the ICARUS project’s final demonstration in Brussels Belgium as an advisor. ICARUS is the European Union funded project “Integrated Components for Assisted Rescue and Unmanned Search operations” which you can read about at here.  The demonstration was quite the success and the entire project has my greatest admiration!

Just a note to anyone wondering why the US is not doing more of this: the European Union funded the project at $17.5 M Euros, far more than any funding for robotics projects available through the National Science Foundation or the Department of Homeland Security. The great ICARUS team and the funding really helped them move the EU ahead of the US and Asia in robotics and in robotics for disasters. This is not the only project being funded at this level in the EU. NIFTY just finished up, TIRAMISU, CADDY, and SHERPA are all major projects focusing on fundamental research in robotics through applications to disasters. Each project has a strong partnership with an actual response agency or national US&R team, following the model that we use at CRASAR- and indeed that’s why I’m on the advisory board for most of these projects. This is a very different model than the DARPA Robotics Challenge in the US.

There were four aspects of the project that resonated with me:

  1. Engagement of the end-users, in this case, Belgium’s US&R team B-FAST, and emphasis on physical and operational fidelity. This is the major thrust of CRASAR. The engagement of end users led to them deploying their rotorcraft UAV for the Serbia-Bosnia floods, with an excellent set of lessons learned reported at IEEE Safety Security Rescue Robotics at http://tinyurl.com/ppr6c7b.
  2. Focus on heterogeneity of robots. The project demonstrated land, aerial, and marine robots complementing each other to provide responders with more capabilities to see and act at a distance. The July demo showed Aerial-Marine cooperation and this, the September demo, focused on Aerial-Ground cooperation. Heterogeneous robots are not a new topic, nor a new topic for disasters (see our work at the Japanese tsunami http://onlinelibrary.wiley.com/doi/10.1002/rob.21435/abstract) but ICARUS advanced the field by showing interoperability of control of the robots. Arguably, interoperability is not new and something the US Department of Defense is pursuing but it was nice to see, especially combined with heterogeneity of missions.
  3. Heterogeneity of missions. Perhaps the most compelling part of the demo was the how robots could be repurposed for different missions and how the interoperability framework supported this. A large robot for removing rubble could change its end effector and carry a smaller robot and lift it to the roof of a compromised building. The displays showed the payloads and types of functions each robot could do- this visualization was a nice advance.
  4. One size does not fit all. It was music to my ears to hear Geert DeCubber say that there is not a single robot that will work for all missions. I’ve been working on categorizing missions and the environmental constraints (e.g., how small does a robot need to be), with the initial taxonomy in Disaster Robotics https://mitpress.mit.edu/books/disaster-robotics)

The project focused on Interoperability between the assets, which was interesting technologically but I wonder if it will be of practical importance beyond what would be used by a single US&R team- assuming that a single US&R team would own a complete set of ground, aerial, and marine vehicles.

Our experience has been that a single agency or ESF is unlikely to own all the robotic assets. For example at the Fukushima Daiichi nuclear accident, several different types of ground robots and an aerial robot were simultaneously deployed. It didn’t make sense for a single operator to be able to control the devices— with a UGV outside the building clearing rubble, a UGV inside inserting a sensor, and a UAV outside conducting a radiological survey- these seem to be delegated functionality and better kept as separate modules. Furthermore, many of the devices were brought in for the disaster, that the best available was deployed rather than existing JAEA, so there is always the issue of how to incorporate the latest tool.

Even in a relatively small disaster, such as the Prospect Towers parking garage collapse, New Jersey Task Force 1 borrowed ground robots from a law enforcement agency. The point is that for the next decade, teams may be using ad hoc assemblies of robots, not owning a dedicated set of assets.

For CRASAR, the challenge is how the different end-users get the right information from the ad hoc assembly of robotics fast enough to make better decisions.

The project had a host of commendable technical innovations, such as showing a small solar power fixed-wing that operated for 81 hours endurance and provided a wireless network for the responders, a novel stereo sensor for the tiny Astec Firefly which they showed flying in through a window, and an exoskeleton controller for a robot arm which is being commercialized.

I particularly liked the ICARUS focus on establishing useful mission protocols. They experimented with launching a fixed wing immediately to do recon and wireless and provide overwatch of the camp and with using a quadrotor to fly ahead of convoy and try to ascertain the best route to the destination when roads might be blocked with rubble or trees.

TED talk by CEI Director Murphy: It’s not the robots, it’s the data!

You can also click here to check out the whole video!

Indian Scientists Making Snake Robot for Search and Rescue Missions

Two prototypes of the Snake Robot for Search and Rescue Missions, called SARP (Snake-like Articulated Robot Platform) have been designed by scientists of the department of mechanical and aerospace engineering at Indian Institute of Technology-Hyderabad (IIT-H). Developed from fire-proof ABS plastic, the snake-like motion of the prototypes (about a metre in length) helps in navigation of rough terrain, he said. The robots can also communicate with each other.

“In a disaster site, like a collapsed building in an earthquake, a building on fire, or a dangerous environment, like a nuclear power plant in an accident, a snake robot can be used to access difficult-to-reach spaces and look for survivors under the debris,” R. Prasanth Kumar, associate professor at the department told IANS. ”It can then relay valuable information about the environment and help rescue workers in planning their missions,” Kumar said.

Check out more information here