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When you want to hear what it might sound like but instead they play loud music over the video. Quite frustrating. Is it going to become a ceiling roomba or not

When you want to hear what it might sound like but instead they play loud music over the video. Quite frustrating. Is it going to become a ceiling roomba or not based on how loud it is?

scintill76 5y ago
> There are a couple of downsides too, though. The biggest one could be that 200 Hz is a frequency that’s well within human hearing, which probably explains that soundtrack in the video—the robot is, as the researchers put it, “inherently quite noisy.”
- mrtnmcc 5y ago
  200Hz seems a low enough frequency (1.7m wavelength) that they could do active noise cancellation with a small onboard speaker designed to generate a similar sound 180 deg out of phase such that it cancels in far field. Would probably need some DSP to generate anti harmonics as well assuming there are some nonlinearities.
  - AndrewDucker 5y ago
    If the vibrations are what's holding it on then cancelling those vibrations might knock it off...
erklik 5y ago
> Is it going to become a ceiling roomba What would be the point of a ceiling roomba? Are ceilings ever that dirty to require regular vaccumming?
- robbrown451 5y ago
  I've certainly seen ceilings, such as at restaurants, that are out of reach of cleaning so they are covered with visible nastiness. I also once lived in a rental with a really high ceiling that was impossible to clean the cob webs, which were quite visible. Having robots that can crawl up there and clean -- or for that matter, paint -- would be handy.
  - dstick 5y ago
    Oh wow - paint! As someone who’s renovating a house at this very moment, I would happily pay for that!
    - laurent92 5y ago
      Yes. A rotating disk and paint. Sounds artsy. However, that shows there is demand for paint on high ceilings. A robotic arm, with an AI that is able to paint the corners and circumvolutions with a brush, that is able to retouch if a spot was missed? Maybe in the future, luxury will be in high ceilings that are clean and renovated. Imagine how dusty the paintings are in churches and palaces - imagine we could brush off the dust and restore their intensity every 6 months.
- arbol 5y ago
  Cleaning showers, baths, etc.
  - a_imho 5y ago
    My apartment is not conductive to robot vacuums, but would entertain the idea of employing a bunch of robot window cleaners. Seems like a very well defined problem at first glance.
    - failwhaleshark 5y ago
      My apartment's floor has a high ohm reading too. And the walls must be thermally-conductive too because the AC runs constantly. ;-) A mop robot takes care of the entryway and kitchen. It really needs some exterior mop robots because they're constantly dirty.
    - yreg 5y ago
      They do exist — https://youtu.be/jO-diCFjfms https://youtu.be/jO-diCFjfms
      - failwhaleshark 5y ago
        https://www.amazon.com/dp/B08P7FR6S8 https://www.amazon.com/dp/B08P7FR6S8
        failwhaleshark 5y ago
        The other one https://www.amazon.com/dp/B07L2X6LPT https://www.amazon.com/dp/B07L2X6LPT
- tinus_hn 5y ago
  Congratulations! You’re not a smoker!
- rmetzler 5y ago
  Large glass facades need cleaning at least once a year. The problem is to reach the heights. Currently there are a few solutions to this problem: hydraulic lifting platforms, industrial climbers and climbing solutions where you don’t need to be a real industrial climber. Robots would probably be cheaper.
  - yreg 5y ago
    There already are also "ceiling roombas" holding up by sucking[0]. (I don't know whether they can actually do ceilings or only vertical surfaces for now, but it seems if you could build the latter product you would also be able to make the former) [0] — https://youtu.be/jO-diCFjfms https://youtu.be/jO-diCFjfms
- deleted 5y ago
  [deleted]
bigbizisverywyz 5y ago
Well if it can paint my ceiling in an hour or two, I don't really mind how loud it is (up to a a point). I have very high ceilings. It might also be quite useful for examining the outside of high skyscrapers for maintenance, if you need to get a camera up there.
- sharken 5y ago
  For cleaning windows you can also employ a Robot to do the job. Though i think a safety cable is a really good idea, not sure how that is done for a Robot working on the ceiling. https://azbigmedia.com/lifestyle/how-a-window-cleaning-robot-works-and-its-major-benefits/ https://azbigmedia.com/lifestyle/how-a-window-cleaning-robot...
- skykooler 5y ago
  Painting a ceiling is more difficult for a climbing robot than cleaning the ceiling, since it's got to carry the weight of the paint up there.

When you want to hear what it might sound like but instead they play loud music over the video. Quite frustrating. Is it going to become a ceiling roomba or not based on how loud it is?

scintill76 5y ago

> There are a couple of downsides too, though. The biggest one could be that 200 Hz is a frequency that’s well within human hearing, which probably explains that soundtrack in the video—the robot is, as the researchers put it, “inherently quite noisy.”

mrtnmcc 5y ago
200Hz seems a low enough frequency (1.7m wavelength) that they could do active noise cancellation with a small onboard speaker designed to generate a similar sound 180 deg out of phase such that it cancels in far field. Would probably need some DSP to generate anti harmonics as well assuming there are some nonlinearities.
- AndrewDucker 5y ago
  If the vibrations are what's holding it on then cancelling those vibrations might knock it off...

erklik 5y ago

> Is it going to become a ceiling roomba What would be the point of a ceiling roomba? Are ceilings ever that dirty to require regular vaccumming?

robbrown451 5y ago
I've certainly seen ceilings, such as at restaurants, that are out of reach of cleaning so they are covered with visible nastiness. I also once lived in a rental with a really high ceiling that was impossible to clean the cob webs, which were quite visible. Having robots that can crawl up there and clean -- or for that matter, paint -- would be handy.
- dstick 5y ago
  Oh wow - paint! As someone who’s renovating a house at this very moment, I would happily pay for that!
  - laurent92 5y ago
    Yes. A rotating disk and paint. Sounds artsy. However, that shows there is demand for paint on high ceilings. A robotic arm, with an AI that is able to paint the corners and circumvolutions with a brush, that is able to retouch if a spot was missed? Maybe in the future, luxury will be in high ceilings that are clean and renovated. Imagine how dusty the paintings are in churches and palaces - imagine we could brush off the dust and restore their intensity every 6 months.
arbol 5y ago
Cleaning showers, baths, etc.
- a_imho 5y ago
  My apartment is not conductive to robot vacuums, but would entertain the idea of employing a bunch of robot window cleaners. Seems like a very well defined problem at first glance.
  - failwhaleshark 5y ago
    My apartment's floor has a high ohm reading too. And the walls must be thermally-conductive too because the AC runs constantly. ;-) A mop robot takes care of the entryway and kitchen. It really needs some exterior mop robots because they're constantly dirty.
  - yreg 5y ago
    They do exist — https://youtu.be/jO-diCFjfms https://youtu.be/jO-diCFjfms
    - failwhaleshark 5y ago
      https://www.amazon.com/dp/B08P7FR6S8 https://www.amazon.com/dp/B08P7FR6S8
      - failwhaleshark 5y ago
        The other one https://www.amazon.com/dp/B07L2X6LPT https://www.amazon.com/dp/B07L2X6LPT
tinus_hn 5y ago
Congratulations! You’re not a smoker!
rmetzler 5y ago
Large glass facades need cleaning at least once a year. The problem is to reach the heights. Currently there are a few solutions to this problem: hydraulic lifting platforms, industrial climbers and climbing solutions where you don’t need to be a real industrial climber. Robots would probably be cheaper.
- yreg 5y ago
  There already are also "ceiling roombas" holding up by sucking[0]. (I don't know whether they can actually do ceilings or only vertical surfaces for now, but it seems if you could build the latter product you would also be able to make the former) [0] — https://youtu.be/jO-diCFjfms https://youtu.be/jO-diCFjfms
deleted 5y ago
[deleted]

bigbizisverywyz 5y ago

Well if it can paint my ceiling in an hour or two, I don't really mind how loud it is (up to a a point). I have very high ceilings. It might also be quite useful for examining the outside of high skyscrapers for maintenance, if you need to get a camera up there.

sharken 5y ago
For cleaning windows you can also employ a Robot to do the job. Though i think a safety cable is a really good idea, not sure how that is done for a Robot working on the ceiling. https://azbigmedia.com/lifestyle/how-a-window-cleaning-robot-works-and-its-major-benefits/ https://azbigmedia.com/lifestyle/how-a-window-cleaning-robot...
skykooler 5y ago
Painting a ceiling is more difficult for a climbing robot than cleaning the ceiling, since it's got to carry the weight of the paint up there.