Instructables

Dog bark sensor


Hello!  I'm looking to experiment with a DIY dog bark control/training system, but I'm not sure where to start on the bark sensing front.  I know that commercial bark control collars (don't worry -- I'm not building a shock collar) use a combination of mics and vibration sensors together to reduce false positives and prevent the system from triggering if it is another dog doing the barking.  Any ideas how I could build something that performs a similar function?

normgr002 years ago
Instead of a sensor I made one with a remote control. It is on a key bob. I should make a diy for it. Essentially I purchased a remote control module with a key chain button (got 3 key bobs). Everything is powered from a old computer power supply and a 12V wall wart. When you push the button on the key bob the computer supply turns on powering a Arduino programmed to make a sound only the dog can hear. This signal is the input to a 240W car stereo amp that sends it to 4 piezo bullet speakers that are installed in a long horn. Looks like a train horn and for the do it sounds like one. First I made the sound signal from a 555 timer oscillator circuit but I like the Arduino better since I can program some really annoying sounds into it and I can change the frequency into the human range to see what the dog will be exposed to. My current sound is a dropping frequency sweep, like a bomb falling. When the tone gets close to human hearing but still higher it changes to repeating two tone blast pulses. Sends the dog running into the garage to hide and doesn't come back out for a half hour. The long horn really projects and you want to have it mounted so it is pointed at the dog.

Keep in mind these things can damage your hearing even if you can't hear them, especially children's. After first testing it I felt like I was a rock concert. Ear pain and went to bed with ringing ears. BE CAREFUL.

Also don't use it indiscriminately. Only hit it when the dog is barking. This way you train him to not bark and you can put it away after he learns. My neighbors dog is no longer a problem.
hello i send private email for questions anti_bark iniziative..

can you see? Thanks luciano
Can you do me a solid and send me (or post) ebay item numbers for all the stuff you mention? I desperately need this solution but don't want to buy the wrong items. Here is what I was ready to buy (which I'm sure are mostly wrong):
281075821905 (bark sensor?)
270941558061 (sound module)
390511925986 (remote control)
350271665877 (pre amp)
I already have the rest of the stuff (except the Arduino main board; maybe help me on this item as well)
Thanks in advance!
Pyle makes some car amps that work just fine and are reasonable $. Although most amps are specked to 20 KHz that is only because 20K is generally considered the limit of human hearing however they produce sounds well above those specs (why test above what anyone can hear anyway?). More power? Why not if you ant to spend more. This one is cheep:
http://www.ebay.com/itm/New-Pyle-PLMPA35-2-Channel-300-Watt-Mini-Amplifier-w-3-5mm-Input-Amp-/330885088474?pt=Car_Amplifiers&hash=item4d0a49c4da

A remote control module is like this. It is 12V and has a keychain remote control button module.
http://www.ebay.com/itm/2CH-Way-RF-Waterproof-wireless-Remote-control-Receiver-Momentary-Switch-/320955062832?pt=Home_Automation_Modules&hash=item4aba699a30

There are allot of cheep screw on piezo tweeters like these for under 10$. Get 4. Better speakers in this application have the larger spec for SPL (sound pressure level) 93 to 105 dB is typical and 3 more dB is a discernible increase in loudness. Go for the loud rather than being linear across the spectrum because loud is more important than hi fidelity.
http://www.ebay.com/itm/NEW-Screw-On-Piezo-Tweeter-Horn-Drivers-Motorola-Powerline-1-4-18tpi-/150945097642?pt=US_Pro_Audio_Speaker_Drivers_Horns&hash=item23250767aa

The best horn to put on the tweeter is a long one, sometimes hard to find because most audion tweeter horns want to disperse the sound. You want to channel it right to the dog some distance away. You want a lonf narrow horn like the kind you see on truck or boat horns. Like this:
http://www.ebay.com/itm/Selenium-HL1425-1-Screw-On-Horn-/280949782219?pt=US_Pro_Audio_Speaker_Drivers_Horns&hash=item4169e976cb

For a power supply go to good will and get a used PC power supply. Get one with enough watts (on the 12 Volt supply section) to match the power output of the amp (300 Watt in the amp suggested above).

Here is a newly available micro-controller (arduino clone) for cheep that can create any tone frequency you want. You can easily make patterns of tones similar to bombs dropping (a falling frequency) or short periodic blasts. Micro-controllers are just great easy electronics modules that can do almost anything. It plugs into your PC USB port and you download a program into it that defines the tones you want. If you know nothing about programing it's OK. This will be the simplest program in the world and you'll probably be able to modify it and learn someting too. Find it here:
http://digistump.com/ks_preorders.php

If you get this stuff I'll help you with the wiring and even write you a short program for the micro-controller.
That is amazing - thanks so much for replying! I will start right away building this, and let you know of my progress.
Goodhart3 years ago
If overly simple, it will false trigger. Sadly, the volume, and frequency (and sharpness of the bark) have to be sensed so as to insure the barking is coming from the dog one is aiming at. I have found that even some commercial "bark inhibitors" that use sound to quell a bark are overly simplified and go off no matter where the bark comes from, and sometimes with loud hand clapping etc.
It isn't a simple algorithm to be sure, especially if you want to "tune it" to a specific dog.
(removed by author or community request)
Shhush Shhush1 year ago
Oh, i am also building a system now myself. It is a thousand watts and tends to throw a broad beam rather than a narrow, concentrated one. Modern horns are very short and tend to open up very quickly. For a system over 100 or so watts, a short horn is superior to a long narrow one that creates a very concentrated cone. If the dog is not in the cone, it doesn't do a hell of a lot.

Also, while there is not a lot of examples of this, many watts of sound are many watts of sound. Despite little proof, try to avoid dosing any living creature for an excessive amount of time and risk damaging their hearing, causing nausea, dizziness and confusion.

PLEASE DO PUBLISH YOUR SCHEMATICS AND LAYOUTS! We all would appreciate it!
lucianopep1 year ago
hello! i have the news circuit not selettive bark . This circuit is good driver oscillatore mudulate audio 22khz 25 khz.. i have problem whit bark detector. NO circuite preliminary in internet! :-(


please ..this is my photo :http://groups.yahoo.com/group/Electronics_101/photos/album/378606715/pic/list
thanks ..luciano
fcross13 years ago
All schooling collars, like bark collar, are made not to damage or punish your pet. The correction stimulation is comparable to the static produced from strolling by means of carpet. We encourage the Collars as they have a patented engineering that detects vibration and sound to assure precise activation. Securely command your littlest dog's tremendous barks with the Puppy Bark Manage Collar.