HOME  |  NEWS  |  BLOGS  |  MESSAGES  |  FEATURES  |  VIDEOS  |  WEBINARS  |  INDUSTRIES  |  FOCUS ON FUNDAMENTALS
  |  REGISTER  |  LOGIN  |  HELP
Blogs
Guest Blogs

The Importance of UAVs

NO RATINGS
View Comments: Newest First|Oldest First|Threaded View
bobjengr
User Rank
Platinum
Re: Limitations as well
bobjengr   6/13/2014 6:03:15 PM
NO RATINGS
 I certainly agree with you naperlou on needing a collision avoidance system for quadrotor drones and other remote controlled drones.  I also agree that drones can provide a remarkable service when used in difficult and dangerous environments. I feel the mechanical aspects of developing a system is fairly straightforward--its' the control aspects that become the tripping point.  I feel that as these drones find more and more domestic uses; the FAA will step in to regulate them in some fashion, not to mention Homeland Security.  Great post Kevin. 

William K.
User Rank
Platinum
Re: Limitations as well
William K.   6/10/2014 9:31:44 PM
NO RATINGS
At least one of the drones was hijacked by "spoofing" the GPS system, using fake sattelite signals to mislead the system into believing it was in a different location. My preferred solution would involve a small nuclear device rigged as a booby trap to detonate upon unauthorized access. It would allow us to know just exactly where the drone had been taken for dismantling. And it would help protect the drone technology. It might possibly deter additional hijackings.

don.norris
User Rank
Iron
Hi jack UAV
don.norris   6/10/2014 6:28:37 PM
NO RATINGS
If you have been viewing the latest 24 episodes, you will relize that hi-jacking the USAF X47 is the major plot line.  I really don't believe it is possible, right now, to hi-jack an operational military drone.  In fact, it is almost impossible to take control of any drone.  Having said that, I will state that it maybe possible to interrupt the comm link with a drone such that it goes out of control and likely crashes.  In case of the Iranian drone; the Russians likely over powered the drone link causing it to lose comms.  I can only guess that the fail-safe program that should be installed in these drones, failed and it subsequently crashed.  Some small scale, non-military quadcopters (multirotors) also have a "return to home" function in case the comm link is lost.

Again, only guessing because the actual military contro system is classified, I must assume that it is a satellite based and highly encrypted.  There is simply too small of a time window available to intercept, decode and decrypt the real-time digital control signals to hi jack a military drone, no matter how powerful the enemy's computer system.

In a shameless plug, please take a look a my recently published book, "Build Your Own Quadcopter" to understand why I can make these statements with confidence. I go through the comm link technology that controls civilian drones pointing out how resistent they are to interference.

R,

Don Norris

 

 

Cabe Atwell
User Rank
Blogger
Re: Limitations as well
Cabe Atwell   5/31/2014 12:25:18 AM
NO RATINGS
I agree with you naperlou. I remember when the Russians hacked that drone flight and even Iran (probably a lie) claimed to have taken control of the X-47B. It's a scary thought that they can be hijacked, especially when they are outfitted with munitions.

naperlou
User Rank
Blogger
Limitations as well
naperlou   5/28/2014 2:21:13 PM
NO RATINGS
Kevin, from the title I thought you were going to talk about something else. 

I was judging senior projects at DeVry University in Chicago as part of an IEEE group and one of the projects was a quadrotor. 

Frankly, with the microcontrollers available today, at very low cost, implementing these control algorigthms is surely feasible, 

On the other hand, I think we are putting too much emphasis on them in the military.  Against an enemy like the Taliban, they are great.  On the other hand, the Russians have already taken control of and crashed (mostly intact) one of our military drones.  In a conflict with a sophisticated enemy the only useful ones will be the micros that front line troops can use to take a quick look ahead. 

As for civilian use, collision avoidance needs to be required.  I don't want one crashing in my back yard.

Partner Zone
More Blogs from Guest Blogs
There are drivers everywhere who turn on their headlights or windshield wipers with no awareness of the development effort behind a switch. Yet from freezing winter to sweltering summer, on dull rainy days and in bright sunshine, switches are expected to function consistently for the lifetime of a car.
Jet engine maker Pratt & Whitney sees additive manufacturing as a production approach that's complementary to -- not a replacement for -- traditional manufacturing processes.
The standards electrical machines and components are required to meet in the food processing industry are far more stringent than those in traditional plant construction. For specialized production environments such as these, components must not only resist thermal and physical stresses, but they must also be resistant to the chemicals used to sterilize equipment.
The word “smart” is becoming the dumbest word around. It has been applied to almost every device and system in our homes. In addition to smartphones and smart meters, we now hear about smart clothing and smart shoes, smart lights, smart homes, smart buildings, and every trendy city today has its smart city project. Just because it has a computer inside and is connected to the Web, does not mean it is smart.
Was Steve Job’s signature outfit of a black turtleneck, jeans, and sneakers the secret behind his success? Maybe, or maybe not, but it was likely an indication of a decision-making philosophy that enabled him to become one of the most successful innovators of all time.
Design News Webinar Series
2/25/2015 11:00 a.m. California / 2:00 p.m. New York
12/11/2014 8:00 a.m. California / 11:00 a.m. New York
12/10/2014 8:00 a.m. California / 11:00 a.m. New York
11/19/2014 11:00 a.m. California / 2:00 p.m. New York
Quick Poll
The Continuing Education Center offers engineers an entirely new way to get the education they need to formulate next-generation solutions.
Mar 9 - 13, Implementing Motor Control Designs with MCUs and FPGAs: An Introduction and Update
SEMESTERS: 1  |  2  |  3  |  4  |  5  |  67


Focus on Fundamentals consists of 45-minute on-line classes that cover a host of technologies. You learn without leaving the comfort of your desk. All classes are taught by subject-matter experts and all are archived. So if you can't attend live, attend at your convenience.
Learn More   |   Login   |   Archived Classes
Twitter Feed
Design News Twitter Feed
Like Us on Facebook

Sponsored Content

Technology Marketplace

Copyright © 2015 UBM Canon, A UBM company, All rights reserved. Privacy Policy | Terms of Service