Collaborate Disseminate
Most of us associate echolocation with bats. These amazing creatures are able to chirp at frequencies beyond the limit of our hearing, and they use the reflected sound to map …read more Continue reading Humans Can Learn Echolocation Too
With rescue and recovery efforts at the horrific condo collapse in Florida this week still underway, we noted with interest some of the technology being employed on the site. Chief …read more Continue reading Hackaday Links: July 4, 2021
Bats use echolocation to see objects in front of them. They emit an ultrasonic pulse around 20 kHz (and up to 100 kHz) and then sense the pulses as they reflect off an object and back to the bat. It’s the same type of mechanism used by ultrasonic proximity sensors …read more
Using bone conduction headphones and some drone parts, marine scientist Andrew Thaler crafted a pair of glasses that help you “see” like a dolphin would. Continue reading This DIY Headset Lets You Echolocate Like a Dolphin
Infrared certainly has its uses, but if you’re trying to locate objects, ultrasonic detection is far superior. It’s contact-less, undetectable to the human ear, and it isn’t affected by smoke, dust, ambient light, or Silly String.
If you have one ultrasonic sensor and a microcontroller, you can detect plenty of useful things, like the water level in a rain barrel or the distance traveled by a tablet along a rail. If you have two sensors and a microcontroller, you can pinpoint any object within a defined range using trigonometry.
[lingib]’s dual sensor echo locator uses two HY-SRF05s, but the cheap …read more
Continue reading Dual Sensor Echo Locator Gives High Accuracy at Low Cost
Echolocation projects typically rely on inexpensive distance sensors and the human brain to do most of the processing. The team creating SNAP: Augmented Echolocation are using much stronger computational power to translate robotic vision into a 3D soundscape.
The SNAP team starts with an Intel RealSense R200. The first part of the processing happens here because it outputs a depth map which takes the heavy lifting out of robotic vision. From here, an AAEON Up board, packaged with the RealSense, takes the depth map and associates sound with the objects in the field of view.
Binaural sound generation is a …read more
Continue reading Hackaday Prize Entry: SNAP Is Almost Geordi La Forge’s Visor
Bats and marine mammals have acoustic navigation down, but humans are learning quickly too. Continue reading Human Echolocation Isn’t Just For the Blind
Bats and marine mammals have acoustic navigation down, but humans are learning quickly too. Continue reading Human Echolocation Isn’t Just For the Blind
It could lead to better drones in the future. Continue reading Scientists Zapped Bats With Lasers Inside a Wind Tunnel to Learn How they Fly