Remote control question

S

SBFan2000

Guest
I'm looking to have a box with 36 buttons (wireless) that sends a radio
signal to a transmitter box that would then "fire" the corresponding
circuit.

The last several years I've been doing a fireworks show with a 36 shell
finale. The last several years I've been doing it analog with 36 sets of
wires, one set to fire each shell. I'm looking to have a box with the 36
buttons and LEDS and then when a button is pushed to have it fire the shell.
I understand some basics but looking for the best and cheapest way to do
this.

On the receiver end I'm probably looking to stay with 12 volt DC supply
powering one box that would have wire terminals not 36 separate boxes.
 
Well how would yo uknow that one of the kids inthe crowd hadnt got a toy RC
car !
Crains work on a totaly different range. Yet they still have to have loads
of fail safes.
But feel free to use one. Send the vid to You tube so we can all have a
laugh at the outcome.
;-)

Why not have a simple counting circuit that fires each one off after
another.
You could have a remote kill switch. So atleast if the kids in the crowds do
send a stray singnal the worst that would happen is the thing would switch
off.
That would be pritty easy to do.

Regards
Wombat.

"SBFan2000" <glenn@glenngriffithNOSPAM.com> wrote in message
news:4Yydh.2042$QD3.818@trndny01...
I knew I'd get one of these. I know the dangers but they are limited since
my closest neighbor is over a mile away and the electric connection would
not be made until 5 sec before the show!

Plus I'm planning on using one of the frequencys used for RC cars at low
power. And those closest neighbors or 80+ years old so I don't think
they'll be using that frequency at 10pm on July 4th.

And again, even with a stray signal, the receiver won't have power until 5
sec before the show. And the launch tubes are hundreds of feet away from
the crowd.



"Wombat-Pipex-News" <wombatppc@nospam@dsl.pipex.com> wrote in message
news:ks6dndKsV4kV6-vYnZ2dnUVZ8sidnZ2d@pipex.net...
"SBFan2000" <glenn@glenngriffithNOSPAM.com> wrote in message
news:Ixqdh.2006$QD3.1827@trndny01...
I'm looking to have a box with 36 buttons (wireless) that sends a radio
signal to a transmitter box that would then "fire" the corresponding
circuit.

The last several years I've been doing a fireworks show with a 36 shell
finale. The last several years I've been doing it analog with 36 sets
of
wires, one set to fire each shell. I'm looking to have a box with the
36
buttons and LEDS and then when a button is pushed to have it fire the
shell.
I understand some basics but looking for the best and cheapest way to
do
this.

On the receiver end I'm probably looking to stay with 12 volt DC supply
powering one box that would have wire terminals not 36 separate boxes.


That would be dangeruse.
Similar ideas are used for controling industrial crains.
But its not that streight forward due to the dangers involved. Lots of
shielding a and safety precautions.
After all workers dont realy want a 30ton object being droped from a
great
height just because sombade was using a welder.
Plus firework displays would be making so many explosions you would
defently
triger one of the many trigers.
You would be best sticking to wires. Or make some kind of timing control
device.

Regards
Wombat.
Click to expand...
 
On Wed, 06 Dec 2006 22:26:35 GMT, "SBFan2000"
<glenn@glenngriffithNOSPAM.com> wrote:


I'm sorry I posted for help. This whole thing was just to find the best way
of doing it. (cheapsest, safest) And to maybe get ideas of things I hadn't
thought of. I'll guess I'll just go ahead and do it without input from this
group. If I have any specific questions I'll just talk to my co-workers.
Click to expand...
I think you missed the whole point: we did give you advise--don't do
it! What you are proposing is dangerous but you won't see anything but
what you want to see.

Listen to those who have advised you: it is not a good idea.

Consider this: what do the professionals use? I'll give you a hint:
not radios! And certainly not radios on uncontrolled public
frequencies.

I suppose you could do it with single wire communications units, but
that would be expensive and still require wires, though not so many.
 
On 2006-12-07, SBFan2000 <glenn@glenngriffithNOSPAM.com> wrote:
Could someone please explain what is "dangerous" about this? Shells are
publically available they are not sticks of dynamite. They are loaded in a
steel tube in the ground, wired to a remotre box all with the power off!
The power is switched on 5-10 seconds before the show. Even if some some
stray signal from the nearest 80+ year old neighbor over a mile away sets
all 36 off at the same time they just go into the air and explode as if I
had set if off on purpose. Where's the danger?
Click to expand...
such a device in the hands of a terrorist?

I think most of the posters here see no significant advantage over a wired system



--

Bye.
Jasen
 
On 2006-12-07, SBFan2000 <glenn@glenngriffithNOSPAM.com> wrote:
I just had a thought, how about a receiver that must receive two signals on
two different frequencies at the same time in order to fire?
Click to expand...
coded signals like used for security (cars, gates, etc) would be as good

still there's a chance of interferance stopping it from working.

Bye.
Jasen
 
"Wombat-Pipex-News" <wombatppc@nospam@dsl.pipex.com> wrote in message
Well if your realy want to blow yourself up thats you choice.
check out these sorts of things.
Click to expand...
Wombat - surely you're making too much fuss over this. If the firing system
is unpowered until everyone is well clear then what could possibly go wrong?

Give him some help, go on. If he blows himself up it's not like you'll be
liable.

Hehe, maybe the OP should have stated that it was only party-poppers that he
wanted to remotely fire... ;o)
 
"jasen" <jasen@free.net.nz> wrote in message
news:el8obm$bt9$1@jasen.is-a-geek.org...
On 2006-12-07, SBFan2000 <glenn@glenngriffithNOSPAM.com> wrote:
Could someone please explain what is "dangerous" about this? Shells are
publically available they are not sticks of dynamite. They are loaded in
a
steel tube in the ground, wired to a remotre box all with the power off!
The power is switched on 5-10 seconds before the show. Even if some some
stray signal from the nearest 80+ year old neighbor over a mile away sets
all 36 off at the same time they just go into the air and explode as if I
had set if off on purpose. Where's the danger?

such a device in the hands of a terrorist?

I think most of the posters here see no significant advantage over a wired
system



--

Bye.
Jasen
Click to expand...
My thoughts Exactly.
Ya sure Im gonna go around advertising how to make a multi Remote Detonator.
Id have the counter terrorist squad round my place quicker than a flash !!
No Thanks.

And yes a Mobile phone would do the job, with the DTMF. ;-)

Regards
Wombat.
 
perhaps that would have helped!

I know, I'll created a new "alias" and repost with "party poppers" instead
of "shells" :)


"Marcus Redd" <read@it.com> wrote in message
news:45780c34$0$10224$9a6e19ea@unlimited.newshosting.com...
"Wombat-Pipex-News" <wombatppc@nospam@dsl.pipex.com> wrote in message
Well if your realy want to blow yourself up thats you choice.
check out these sorts of things.

Wombat - surely you're making too much fuss over this. If the firing
system
is unpowered until everyone is well clear then what could possibly go
wrong?

Give him some help, go on. If he blows himself up it's not like you'll be
liable.

Hehe, maybe the OP should have stated that it was only party-poppers that
he
wanted to remotely fire... ;o)
Click to expand...
 
If your not smart enough to figure it out then your not smart enough to have
it.

"SBFan2000" <glenn@glenngriffithNOSPAM.com> wrote in message
news:Sn1eh.7412$bW2.3413@trndny04...
perhaps that would have helped!

I know, I'll created a new "alias" and repost with "party poppers"
instead
of "shells" :)


"Marcus Redd" <read@it.com> wrote in message
news:45780c34$0$10224$9a6e19ea@unlimited.newshosting.com...
"Wombat-Pipex-News" <wombatppc@nospam@dsl.pipex.com> wrote in message
Well if your realy want to blow yourself up thats you choice.
check out these sorts of things.

Wombat - surely you're making too much fuss over this. If the firing
system
is unpowered until everyone is well clear then what could possibly go
wrong?

Give him some help, go on. If he blows himself up it's not like you'll be
liable.

Hehe, maybe the OP should have stated that it was only party-poppers that
he
wanted to remotely fire... ;o)
Click to expand...
 
On 2006-12-07, SBFan2000 <glenn@glenngriffithNOSPAM.com> wrote:
You misunderstand. I want the receiver "box" to be wired to each shell.
The receiver would have one power supply. I just don't want to run 36 pairs
of wires 200 feet!
Click to expand...
run a single pair then, and send control signals over that,
it might be sufficient to send a single pulse to signal the
controller to fire the next shell, otherwise it could be
a time (eg rs232) or frequency (eg DTMF) multiplexed
signalling system.

I had some rotory selector units (ex phone exchange) that with new coils
wound for 12V operation might be ideal (for the single pulse setup)
I have them no longer alas.

--

Bye.
Jasen
 
"Marcus Redd" <read@it.com> wrote in message
news:4579443e$0$10245$9a6e19ea@unlimited.newshosting.com...
What???

Run a spell-check on the words below to see just how smart Wombat is...
;o)
Click to expand...
------------------KEY---------------
11=R, 8=O,12=C
2=A,14=L, 9=U
3=T, 13=K,10=P,1=E
4=S, 6=I, 7=Y, 5=H
---------------END KEY------------


4,10,1,14,14 12,5,1,12,13, 3,5,6,4,
1,2,3 4,5,6,3 7,8,9 10,11,6,12,13.

Regards
Wombat.
:)
 
I think you are making it harder following the path you are setting
out right now.
Click to expand...
Thats quite possible. :) Thats why I asked for help/opinions. Thanks
 
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