Showing posts with label drones. Show all posts
Showing posts with label drones. Show all posts

Tuesday, August 14, 2012

Get the fire extinguisher! Drone safety, GPS spoofing, and how I learned to stop worrying and love the drone.


There are certain things you expect when you're building drones for photomapping and journalism. First, you expect some setbacks. Perhaps a crash or two, or at least a few broken props. At worst, you expect a drone to take a fatal nosedive into a field and break into a hundred pieces, never to fly again.

There is a learning curve to this stuff. But you don't expect your drone to go haywire and burst into flames while you're working on it.

Last month, I was busy preparing an electric-powered drone in my basement for a maiden flight. With a wingspan of over 5 feet, and weighing a little over 7 pounds, it was the largest drone I've worked on yet, and it had a decent-sized power source to match.

Much larger drones have flown on the same basic technology, with power sources of twice the capacity used here. Most of our development to this point has focused on battery-powered drones instead of methanol-powered drones, because we want to keep the risk of fire down (even though fuel fires are rare). But that doesn't meant that batteries can't catch fire.

For my drones, I use lithium polymer batteries, or "LiPo," and they're pretty advanced as far as battery technology goes. They run today's electric cars -- the Leafs, the Teslas, the Fiskers and Volts. If you are reading this on a smartphone, you can thank a lithium battery.

Most other cells are contained in cylinders, but lithium polymer cells come in individual pouches. LiPo batteries are packs of lithium polymer cells that have been bound and tightly wrapped together. What really sets LiPo batteries apart, however, is the amount of energy they can store.

Whenever you're storing a great deal of energy in a compact space, and you suddenly release all that energy, you're liable to create tremendous heat. Since LiPos hold a lot of energy, under the right conditions, they can also catch fire.

According to the instructions of the original balsa plane I was hacking into an autonomous drone, the motor and its speed controller required 5 LiPo cells. I did not have a five-cell LiPo pack. I did have two 3-cell packs, and one 4-cell pack (which is quite large). Thanks to fuzzy math, I somehow thought it was safe to use the 4-cell pack and a 3-cell pack, for a total of 7 cells.

Everything seemed OK at first. The motor whirred happily during testing. Then I took the drone back to the basement to finish mounting and calibrating the autopilot, and things got weird.

Thursday, August 9, 2012

Drone Journalism: News that Flies


The idea of using homebrew drones for independent journalism is picking up steam globally.

I just got a digital copy of a story from Aug-Sept issue of seLecT, the Brazilian art & design magazine, which features a story about that same topic. In it, writer and art professor Nina Gazire interviews the Occucopter developer Tim Pool, Nebraska Drone Journalism Lab professor Matt Waite, and myself.

As one would expect, the story is in Portuguese, so here it is translated (via Google):

AT THE END OF 2011, A JOURNALIST OF 25 YEARS HAS BECOME THE SPOKESMAN OF ONE OF THE MORE RECENT EVENTS DISSATISFACTION WITH THE WORLD ECONOMIC CRISIS.

Tuesday, May 15, 2012

Big FAA announcement means quicker access to drones for law enforcement, "streamlined" authorization


Law enforcement agencies will be able to get drones off the ground more quickly, and also will be able to use larger drones, the Federal Aviation Administration announced yesterday.

A news release from the FAA yesterday said that those agencies will be able to enter into a two-step path to authorization, and thus speeding up the process for law enforcement to deploy drones.

"Initially, law enforcement organizations will receive a COA (Certificate of Authorization) for training and performance evaluation," the FAA said. "When the organization has shown proficiency in flying its UAS (Unmanned Aerial System), it will receive an operational COA."

A COA provides the agency with the authorization to fly drones in the national airspace. Currently it's the only way that a government agency can legally fly a drone, which the FAA calls a UAS, and the application process isn't open to commercial industry or private individuals.

The announcement doesn't specify what the requirements are for a law enforcement agency to show proficiency, and doesn't detail the differences between the two types of authorizations. But it does indicate that the FAA is following up on its federal obligation to expedite drone authorizatio

Wednesday, May 2, 2012

Partnerships unlock the real potential of drones, especially in drone journalism.

Yesterday, Salon ran a piece on the proliferation of drones at research universities. As Jefferson Morley wrote, universities are at the are at the forefront of developing the unmanned aerial systems that will be monitoring crops, assessing damage, and doing a number of other tasks at home.

That may not come as much of a surprise to anyone who's been following drones in the past couple of weeks. Recently, Electronic Frontier Foundation published the list of public institutions and government agencies who had current or expired authorization to fly drones.

Some applicants were obscure. Herrington, Kansas -- a town of 2,526 souls -- applied for authorization to fly drones. But 25 of the 62 agencies were institutes of higher learning, and many were surprised at how few agencies had applied for authorization.

However, there's a buried lede in this story: universities aren't just developing drones, they're developing these drones in partnerships with other entities. This isn't happening in an ivory-tower vacuum.

Saturday, February 25, 2012

A word about regulation, applications of drone journalism

This week, I had the pleasure of talking about drones and drone journalism with Drone Journalism Lab founder Matt Waite, and the Joseph Paiva, the Chief Operating Officer of drone developer Gatewing, on Washington DC's "The Kojo Nnamdi Show." A lot of ground was covered in that hour-long show, but I wanted to re-cap and expand on a few of the things I said during the show.

- REGULATIONS

For some time, there has been  and continues to be frustration in the Federal Aviation Administration (FAA) rules on small Unmanned Aerial Systems (sUAS). To review the terminology, we refer to a "drone" as the object that is flying in the air. A UAS implies there is more to this than simply the drone; it's a system of technology with a ground-based operator. On the show, I presented the question about FAA UAS regulation, and that was "what is recreational?":

"I mean, that's one of the rules that says that you can fly under 400 feet away from built-up areas, away from airports, but it's not so clear as what recreation really is. Is that what a nonprofit is when they're trying to collect drone journalism? Is that what a organization who is trying to advocate for animals -- Is that what they're doing when they're flying a drone over a pigeon shoot in South Carolina? And so it is kind of debatable, and it's not really codified into any regulation at this point. "

I'll explain. The FAA regulations as they are today provide a space for recreational drones to operate without special certification, and requires special certification for civilian commercial drones. Those UAS must operate under 400 feet and away from built-up areas and airports.

But where do nonprofit, advocacy, and education lie on that recreational-commercial spectrum? Nowhere does the FAA provide a deffinition for recreation. Some university researchers have been told they need a COA (Certificate of Authorization) to operate their experimental drones for educational purposes, which often times take months to process. Additionally, the FAA will not grant any certificate to anyone operating a drone for profit.

After the show, I received a call from a reporter for a broadcast industry magazine, and I told him that it had been five years since the FAA regulations, and I didn't expect any regulations until the 2015 deadline. He sounded shocked, and asked for clarification.

Five years ago, on February 13, 2007, FAA issued a decree, or "Notice of Policy," in the (Docket No. FAA–2006–25714; Notice No. 07–01) which essentially shut down all civil operation of drones (other than recreational/model activity) in the United States.

That Notice of Policy for Unmanned Aircraft Systems said that in order to pilot a drone for anything but a recreational purpose, you need to obtain an airworthiness certificate in an experimental category for your UAS. This certification just the same as any other experimental aircraft, and is required regardless if you were going to fly your UAS under the exact same restrictions as recreational UAS: fly under 400 feet and away from "built-up areas." Even with this certification, you cannot fly the drone for commercial purposes (which would include commercial media).

More than a year later on April 10, 2008, the FAA issued another decree. This established a small UAS Aviation Rulemaking Committee (ARC) to "conduct a formal safety analysis of small UAS, and then promulgate federal regulations for their design, operation and registration." What came out of that ARC? I don't know.

Patrick Egan, from Remote Control Aerial Photography Association (RCAPA), was on that committee and said there was a "lack of comprehensive action." According to RCAPA president Rick Connolly, who Egan interviewed for sUASnews.com, "Even the members that were part of the process feel nothing came of it and all their hard work was put in the circular file."

Then, in June, a new ARC (ARC 2.0) was created. sUAS News had to file a FOIA request to find out who was on the rulemaking committee and what its charter was. This time around, the ARC seems to be dominated by those. Of the 22 committee members who are not from the FAA, 11 are defense contractors, and there is only one who potentially represents the non-defense commercial drone industry. This has generated a level of skepticism and criticism from RCAPA and other commercial and recreational drone groups.

Some news reports said that proposed rules would come out of ARC 2.0 by December 2011. That never happened.

More than a year ago, the FAA grounded the multicopters of the media company MI6 Films, and told the news website The Daily that it could not longer use drones for its reporting. Meanwhile, ABC, the Australian Broadcasting Corporation, is now flying its own news drone, and MI6 has since found work in other countries. Australia had rules governing UAVs on the books since 2002. The inability to create a space for commercial drones is hampering not just journalism, but innovation that could spark economic growth in a time of economic stagnation.

As I said on the radio show, the FAA has a tremendous burden on its shoulders. It has to make the national airspace safe, and it has to protect people on the ground from harm. That responsibility should not be taken lightly. However, that does not make the delays any less frustrating. And it does not make any less confusing the fact that you need special certification for a craft used for commercial or educational purposes, while the exact same craft can be operated for recreational purposes without any authorization whatsoever from the FAA. Inconsistency in regulations provide ample opportunity to misinterpret the rules.

- APPLICATIONS


I mentioned on the show that a fixed-wing drone could potentially stay aloft for thirty minutes, up to four hours, and beyond. While it's true that a fixed-wing craft can stay aloft for longer periods than a multicopter, the multicopter is better at fulfilling other roles.

Multicopters are uniquely gifted with the ability to hover in a fixed position for the entire duration of its flight. They are also better at negotiating obstacles and maneuvering in tight spaces, as they do not require forward momentum to provide them with lift. Relative to their overall size, multicopters are also able to lift a heavier load than their fixed-wing counterparts. They really are the ideal platforms for many aerial photography and filming applications.

Balloons are another platform for aerial photography. They trump fixed-wing and multirotor craft for "loitering time," the amount of time the craft can stay above a desired target. Being a tethered aircraft, they are also less stringently regulated here in the United States, meaning currently you can use them legally in more circumstances than you would a multicopter or fixed-wing drone. They do have one shortfall, however, and that is they aren't nearly as mobile or controllable as their counterparts. They drift with the air current, and are only as mobile as the operator is able to re-locate the tether.

Dronejournalism.org is pursuing multicopters, but our most complete project at the moment is a fixed-wing drone. That's because the fixed-wing drone is perfect for being able to photomap swaths of land. And with the proper equipment, they can aim a camera in such a way that it lessens the negative effects of circling above a target. In other words, the camera can pan, tilt, and zoom so that the direction the drone is heading at the time is nearly arbitrary.

Recently, we started the motor on that drone for the first time. Weather has hampered our flying the drone for the time being. I'll leave you with video of that moment. It's filmed from the same camera (a GoPro2) that we'll be mounting to to the drone in the future.


Tuesday, February 21, 2012

Project JournoDrone: A fixed-wing drone system for journalism

From Dronejounrnalism.org:

JournoDrone One

Developers at DroneJournalism.org are launching a project to build a low-cost aerial photo platform for journalists, using a combination of off-the-shelf radio-control components and open source electronics. Their goal is to develop a small Unmanned Aerial System (sUAS) for journalists that is powerful, durable, transportable, affordable, upgradeable and supported by a community of experts.

Now one month into the project, development on “JournoDrone One,” or JD-1, is approximately 20 percent complete. DroneJournalism.org is working to secure funding to complete the project by the summer of 2012. The knowledge gained from making and using the drone for aerial photography will allow DroneJournalism.org to bring a similar system to journalists worldwide.

Leading the project is Matthew Schroyer, the founder of DroneJournalism.org, who holds a master’s in journalism from the University of Illinois. Mr. Schroyer has a background in engineering, experience with small, radio-control devices, and experience in using Geographic Information Systems (GIS) for data journalism purposes.

“We hope this is the first of many drones that DroneJournalism.org will develop,” he said. “It’s a practical exercise of existing off-the-shelf drone technology, and our first step into a frontier that could greatly expand public knowledge.”

Wednesday, February 8, 2012

New Law Could Have Enormous Impact on Drone Journalism

 The Federal Aviation Administration must make way for drones, according to a bill that passed through Congress yesterday.

Now headed to President Obama to become law, the bill requires the FAA to decide on regulations that would permit drones (the official nomenclature is UAS – Unmanned Aerial System) to operate in the same airspace as commercial jets and police helicopters. The order was included in the Reauthorization Act that extended FAA’s funding for another four years, at a cost of $64 billion.

The bill does not make the regulations for the FAA, but instead orders the FAA to make regulations within certain bounds. But it does state that the FAA should create a “a safe, non-exclusionary airspace designation for cooperative manned and unmanned flight operations.”

Wednesday, December 14, 2011

Founding a Professional Society of Drone Journalists


It’s been quite a month for drones. After Iranian armed forces captured one of the coveted American RQ170 stealth drones, the very same stealth drone that pierced Pakistani airspace to spy on Osama bin Laden, Wired’s Spencer Ackerman released previously unpublished photos of the carnage that U.S. military drones unleashed in Waziristan.

Later, the Los Angeles Times wrote about how the U.S. Customs and Boarder Protection lent a Predator B drone to North Dakota law enforcement. Sheriffs in Nelson County, N.D., fearing a search for missing cattle would end with deadly firefight with a “sovereign citizen” group, spied on the group and arrested members after the drone revealed they were unarmed. The report went on to reveal that local law enforcement had used Predators stationed at the Grand Forks Air Base for at least two dozen surveillance flights since June, and the FBI and DEA have used Predators in their own investigations.

Salon’s Glen Greenwald warned of the expansion of domestic drones, and the sizable lobbying power of drone contractors in Congress, writing “the escalating addition of drones — weaponized or even just surveillance — to the vast arsenal of domestic weapons that already exist is a serious, consequential development. The fact that it has happened with almost no debate and no real legal authorization is itself highly significant.”

Meanwhile, the Washington Post dedicated its December 4 front page to the Israeli military’s use of drones in Gaza. But one Post reporter asked the question that journalists like me have been wondering for some time: What’s the potential use for drones in journalism?

Melissa Bell’s piece, “Drone journalism? The idea could fly in the U.S.” mentions my writing on a drone journalism Google group, where I mention that drone technology could help journalists “to take water or air samples or to scan for topographical data to make assessments about industrial impact on the environment.”

Bell mentioned Matt Waite, a journalism professor at the University of Nebraska – Lincoln and developer of Pulitzer Prize-winning Politifact, who just began the world’s first drone journalism lab. Waite unveiled his plan for a drone journalism lab at a News Foo conference, where the immediate reaction was skepticism.

“News Foo had a number of tech people very interested in and sensitive to privacy issues and they were quite wary,” Waite told data journalist Ben Welsh. “They immediately went to TMZ+Lindsay Lohan as an example of how drones could be misused.

“So when I started thinking about this idea, I immediately thought that people would rightfully be wary of this and that the sooner we started talking about ethics and laws, the sooner we could have answers for criticisms and guidelines to balance the public’s right to know and people’s expectations of privacy.”

I was unaware of Waite’s announcement, or his drone journalism lab, until the WaPo story. But given the most spectacular breach of journalism ethics in recent history (the News of the World/NewsCorp phone hacking scandal), it was not lost on me how important it would be to establish a code of ethics for drone journalists. The code of ethics would be deliberated and drawn up by experts in the field, similar to the way the Society of Professional Journalists developed and supported its code of ethics.

To that end, I purchased Dronejournalism.org as the future home of the Professional Society of Drone Journalists (PSDJ). At the time of this post, the website is dominated by a placard that displays the mission statement of the PSDJ: “Dedicated to developing the ethical, educational and technological framework for the emerging field of drone journalism.”

I also called Waite to bounce ideas about the first professional organization for drone journalists. One of his ideas was that the organization pursues a code of ethics via Wiki-style collaboration, but that the collaboration should only involve experts and practitioners of drone journalism. He, too, realized the need for an organization to help pull down a concrete ethical framework for journalists.

“This is really cool on one side, really creepy on the other,” Waite said in the conversation. “I think you are being dishonest if you are on the cool side, not thinking there’s something creepy about [drone journalism]. There’s a significant opportunity for mayhem and privacy violations.”

On the other hand, he said, “I think you are missing the point if you don’t see the amazing things you can do with the technology.”

For an example, Waite pointed out that Russian citizen journalists had employed an SLR-equipped drone to obtain aerial shots of a recent protest. The Daily Beast, one of the first news organizations to use a drone, surveyed tornado damage in Joplin, Missouri, and flood damage in Natchez, Mississippi and Minot, North Dakota.


Video from a citizen journalist capturing footage during Poland protests.

Waite said one of the first things he’s going to try to do with his first drones is attempt to violate his own privacy. And, of course, if the drone does violate his privacy, that would make a first case study for developing an ethical framework for drone journalism. “I could stand on a public sidewalk and see if I can’t get a drone high enough to get into my backyard with my kids with a sign that says ‘you’re violating my privacy,’” he said.

But there’s two other components to the PSDJ besides ethics: education and technology. We need to teach journalists how to use the equipment safely and effectively, and we need to keep journalists at the forefront of civil drone technology.

Waite used a $1,000 grant from the company he founded to purchase an off-the-shelf drone, the AR Drone quadcopter by Parrot, to be equipped later with a GoPro HD video recorder. Out of the box, the AR Drone provides a relatively stable platform for shooting video, and is controllable by iPhone or Android smartphone. Steve Doig, a Pulitzer Prize-winning data journalist who teaches at ASU, also is experimenting with the AR Drone platform.

"You can get it at Brookstone in the mall," Waite said. "It's got an API and you can hack it. It's made of stock parts. You can controll it from your smartphone. And it's cheap."

A Parrot AR Drone in flight.

The next step for me will likely be purchasing the same drone and outfitting it in the same fashion. Not too much later, I hope to be able to develop some Arduino-based, fixed-wing aircraft to shoot photos along a predetermined path, and stitch those photos together later. But Waite and I know this is just a starting point; an inexpensive, yet effective demonstration of the concept. From there, it’s experimentation and learning.

“What I would love to do, once we have these platforms, is let’s cover some news,” Waite said.  “A house fire in your city. Spring floods. There will be tornadoes, it’s as predictable as the sun coming up. Let’s cover them and write about our experiences and through those.”

Thursday, May 26, 2011

A Radical New Mission for Drones: Helping Journalists find Truth



Drones are mostly associated with the ongoing war in Afghanistan and Pakistan – where they continue to shoot missiles and drop bombs on the insurgency. Between 1,492 and 2,378 died from drone attacks in Pakistan between 2004 and May 24, 2011, according to theNew America Foundation, and the number of drone attacks have more than doubled under the Obama administration.

The drones present serious concerns for the Pakistanis about their own safety and sovereignty, and have sparked protests at the UK parliament.

The military-industrial complex and global politics have greatly advanced both the application and development of military drones, or Unmanned Aerial Vehicles (UAVs), as they’re called in military parlance. A large, jet-powered stealth drone played a majorrole in tracking down Osama bin Laden. Now there’s entire military expos dedicated solely to UAVs.

But armed conflict and espionage are not a drone’s raison d'ĂȘtre. Strictly speaking, a drone is simply an unmanned vehicle that guided remotely, or is self-guiding. And just as the advancement of drone technology has increased the military’s capabilities, those advancements have trickled down to the private commercial sector.

With a little know-how, a resourceful civilian – or journalist -- can order “off-the-shelf” components and make and fly a drone.