Jamming Ultrasonic and Infrared sensors
hi,
has anyone here had experience build something that can·disrupt the ultrasonic sensor and infrared sensors.
for the ultrasonic sensor thats sold on this website, it sends 40khz signals, is it possible to·mess·it up·if i get a buzzer that constantly send out 40khz signal in its direction.
thanks in advance for any suggestions.
has anyone here had experience build something that can·disrupt the ultrasonic sensor and infrared sensors.
for the ultrasonic sensor thats sold on this website, it sends 40khz signals, is it possible to·mess·it up·if i get a buzzer that constantly send out 40khz signal in its direction.
thanks in advance for any suggestions.
Comments
It is absolutely possible to jam a sensor, if the jamming signal is centered on the same frequency.· In Electronic Counter Measures (ECM) jargon, this is called Spot On Noise (or just SPOT).· I worked on ECM systems for 12 years in the US Navy.· If you use SPOT jamming against a radar, it will deny Range and Range rate information.· Of course, modern Radars use various ECCM techniques to get around this.· Anyway, if you know that a different system that uses the same frequency as PING (or IR frequency or the PRF if the IR), then PING and IR will be affected.· I have not personally experienced it with my PING Radar (or IR sensors), but is certainly makes sense.· If I get time, I just might try to "jam" my own PING Radar.· Sounds like fun.· Anyway, try and remove the source of interference, or move your project elsewhere.· Good luck.
Bob
I want to be able to purposely disrupt the signals because I am building this autonomous vehicle for a project.
This vehicle will participate in a race against other autonomous vehicle, so i need like offensive features that can mess up other ppl's vehicle sensors without touching them.
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- Stephen
that is whats required for us to do. It is part of our assignment to be able to screw up other people's vehicle.
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- Stephen
Before we get to tazers.......Is there a limitation of what can be done to the opposition?
If just trying to confuse them, you could use a ping, and have it continuously ping. The infrared is also the same, just pulsout a random generated number in the right frequency range. Or also modulate the frequency with a random number output.
I sort of look at this as a "Road Warrior" version of battle bots.
James L
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James L
Partner/Designer
Lil Brother SMT Assembly Services
Are you addicted to technology or Micro-controllers..... then checkout the forums at Savage Circuits. Learn to build your own Gizmos!
Bob