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Author Topic: Ambitious Plans....  (Read 4206 times)

F4TCT

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Ambitious Plans....
« on: June 23, 2014, 08:32:57 am »

Hi folks,


I feel its time to grace you all with my presence and seek very ambitious electronics advice...


Im building a Mobile Marine Models FT-X. I mentioned before I want some sort of dynamic Positioning system/autopilot system in the boat.. Ideally i'd like it to be computer controlled, i.e roll up with the laptop, stick a route in and it goes...


I would also like a depth sounder aswell for the sheer novelty of it.


Obviously a raspberry Pi job, however where do i start!


and where would i get a depth sounder, not to large but could be plugged into the Pi to make use of its readings? I would also need a gps antenna - ideally which could be bodged on at the top of the mast.


Dan  {-)
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U-33

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Re: Ambitious Plans....
« Reply #1 on: June 23, 2014, 08:38:08 am »

Dan, the man you need to talk to is John Robinson (username on here sub john) He's done (or doing) all of this stuff on his 12 foot Gato sub, what he doesn't know about electronics isn't worth knowing.

Rich
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Rich

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F4TCT

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Re: Ambitious Plans....
« Reply #2 on: June 23, 2014, 08:43:43 am »

Ohhh cheers!  :-))
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U-33

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Re: Ambitious Plans....
« Reply #3 on: June 23, 2014, 09:04:12 am »

No worries, Dan...a swift email/pm/phone call/ and our tame guru JR will soon sort you out. He'll totally confuse you (well, he does me...) but the boy knows his electronics...


Rich
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Shipmate60

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Re: Ambitious Plans....
« Reply #4 on: June 23, 2014, 09:16:23 am »

Bait boats have a depth sounder as an accessory.


Bob
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david48

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Re: Ambitious Plans....
« Reply #5 on: June 23, 2014, 09:51:20 am »

There is a GPS antenna in Auto route GPS it's about 1-1/2" square, plug type USB last time I looked they were still available as a spare.
David
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richald

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Re: Ambitious Plans....
« Reply #6 on: June 23, 2014, 11:15:34 am »

Dan

You might well be served by having a Google for the home-brew systems that people are using for
multi-rotor drones, eg Google "arduino multirotor software"-  the keywords are Arduino (single
board computer similar to Raspberry PI) and HobbyKing - HK stock lots of cheap Arduino bits,
 Control boards eyc.

The Arduino is very easy to interface up to things like servoes, GPS & Gyro chips, radio communication boards etc
and simple to power (5v - 12v)

Arduino and HobbyKing Multi-Rotor Control Board V3.0 or KKmulticontroller v5.5 - RC Groups

MPU-6050 Gyro and Accelerometer Chip

Arduino Playground - GPS

Arduino based Arducopter UAV, the open source multi-rotor - Arducopter, the open source UAV multicopter
this URL talks of
  • Unlimited GPS waypoints. Just point and click waypoints in the Mission Planner, and ArduCopter will fly itself to them. No distance limits! You can script entire missions, including camera control!
  • "Loiter" anywhere. Just flip the toggle switch and your copter will hold its position using its GPS and altitude sensors.
  • Return to launch. Set home to any location and flip a switch to have ArduCopter fly back automatically.
  • Do all mission planning via a two-way wireless connection option. Waypoints, mode changing, even changing the gains of every control parameter can be done from your laptop, even while the copter is in the air!
  • Automatic takeoff and landing. Just flick a switch and watch ArduCopter execute its mission completely autonomously, returning home to land by itself in front of you when it's done.
  • Fully scriptable camera controls, including the ability to drive a pan-tilt camera gimbal to keep the camera pointed at an object on the ground.
Richard
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U-33

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Re: Ambitious Plans....
« Reply #7 on: June 23, 2014, 11:52:51 am »

Gawd, I wish you guys would speak English.... :embarrassed:




Rich
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Big Ada

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Re: Ambitious Plans....
« Reply #8 on: June 23, 2014, 05:39:29 pm »

Gawd, I wish you guys would speak English.... :embarrassed:




Rich

So what does it ay at the bottom of your Post then?
 Вы боитесь нашего флота. Ну, вы должны быть. Лично я дал бы нам один шанс из трех. Еще чаю кто?
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Netleyned

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Re: Ambitious Plans....
« Reply #9 on: June 23, 2014, 05:50:43 pm »

Would not want a large model running on auto
round our lake.
It would need a very good override if a collision
with a model in trouble was imminent.

Ned
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Umi_Ryuzuki

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Re: Ambitious Plans....
« Reply #10 on: June 23, 2014, 07:22:53 pm »

Might be some good reading.
http://diydrones.com/profiles/blogs/ardupilot-goes-into-the-water-3

We have a local gentleman that has an 8 foot USS Missouri, and it is on a dead reckoning system.
He has measured the pond and mapped it out on his computer. It sails D=RT, and then performs a turn.
The computer and ship are linked via wifi.
When he launches, we alert the pond and all skippers are alerted that it will be on autopilot.
People sail with the ship, but are aware that it is sailing a waypoint direction and give it right of way.

He also sails it RC, but I am not clear on the priority an if the transmitter has priority over the computer input.


richald

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Re: Ambitious Plans....
« Reply #11 on: June 23, 2014, 08:51:46 pm »

So what does it ay at the bottom of your Post then?
 Вы боитесь нашего флота. Ну, вы должны быть. Лично я дал бы нам один шанс из трех. Еще чаю кто?

Google Translate he say ....
You're afraid of our fleet. Well, you should be. Personally, I'd give us one chance in three. More tea anyone?

Richard
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U-33

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Re: Ambitious Plans....
« Reply #12 on: June 23, 2014, 08:54:37 pm »

Correct Rich...a quote from Captain Ramius from the film "The Hunt for Red October"


Rich
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inertia

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Re: Ambitious Plans....
« Reply #13 on: June 23, 2014, 11:11:42 pm »

Dan
Please tell us it's just a wind-up  %%
Dave M
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F4TCT

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Re: Ambitious Plans....
« Reply #14 on: June 24, 2014, 09:11:53 am »

Absolutely not Dave  :}



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NFMike

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Re: Ambitious Plans....
« Reply #15 on: June 24, 2014, 09:30:15 am »

I could have sworn there was a thread on here a week or two ago about someone's project with GPS control, but I can't find it now :(
Maybe it was a dream or deja vu.

U-33

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Re: Ambitious Plans....
« Reply #16 on: June 24, 2014, 10:04:00 am »

I could have sworn there was a thread on here a week or two ago about someone's project with GPS control, but I can't find it now :(
Maybe it was a dream or deja vu.


Look for Sub John's post on his 12 Gato sub...


Rich
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dreadnought72

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Re: Ambitious Plans....
« Reply #17 on: June 24, 2014, 11:02:57 am »

Hi Plague - the thread you DID see (I know, 'cos I saw it too) is here.

Just a thought, Martin and Administrators: the topic The "Black Arts!" ( Electrics & Electronics ) currently covers everything electrical.

I'd suggest that programming & microprocessors (Arduino, Raspberry Pi, Picaxe, etc) might be better served by a separate topic: it'd keep the programmy "noise" out of your basic "circuits and wiring" which is the vast bulk of The Black Arts, and it would provide a natural home for stuff that - it seems - several of us are moving towards.

It could be called:

Even Blacker Arts - Here Be Monsters!

...if my current head-scratching is anything to go by.  :embarrassed:  I have a workbench covered in wires and components which is, as of right now, very nearly working%%

Andy
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NFMike

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Re: Ambitious Plans....
« Reply #18 on: June 24, 2014, 11:06:05 am »


Look for Sub John's post on his 12 Gato sub...


Rich

No, that wasn't it, but I've had another scratch around and found it here:
http://www.modelboatmayhem.co.uk/forum/index.php/topic,47713.0.html
It's in: Mess Deck: General Section > Beginners start here...! > Meet BOFFIN the autonomous ex-tugboat.


Edit: Ah, Dreadnought also found it while I was digging and posting. At least my mind is still sort of intact  :embarrassed:

dreadnought72

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Re: Ambitious Plans....
« Reply #19 on: June 24, 2014, 11:09:58 am »

Would not want a large model running on auto
round our lake.
It would need a very good override if a collision
with a model in trouble was imminent.

Ned
There's no outstanding problem in making it aware of other vessels (and thereby able to take autonomous action to avoid a collision). You'll find that ultrasonic sensors connected to any of the common hobby microprocessors is almost on "page one" of learning how to use them.  :-))

Andy
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Re: Ambitious Plans....
« Reply #20 on: June 24, 2014, 11:19:53 am »

There's no outstanding problem in making it aware of other vessels (and thereby able to take autonomous action to avoid a collision). You'll find that ultrasonic sensors connected to any of the common hobby microprocessors is almost on "page one" of learning how to use them.  :-))

Andy


As long as it has good discrimination between wave tops and floating objects.
Otherwise it would try to dodge each and every wave.


Ned
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