Looking for a color multiplexer or sequencer with PIP

[Petem]

I had a strange demand today,and my normal distributor cant help me...

i have a site with 7 video source,6 are cameras in 3 different
building,one is a kind of community tv channel...

they are all in color

the customer want to take the output of a sequencer,and broadcast it
over chanel 78 CATV,that side if fine and already done...

but now he want to add the 6 security cam in a PIP over the community
channel in sequence,so that he can provide to his tennant,the view of
the cam so they can see who is at the door..

anyone can help?

thanks

 

[Matt Ion]

My first thought is that any basic multiplexer, even a 4-channel simplex type,
or maybe even a some quad boxes, will give you a usable PIP display: take the
output of your sequencer with the security cameras, run it into one input of the
MUX, then run the community channel into a second input on the MUX, set the MUX
to display the community channel with the sequencer's feed in the PIP window,
and feed the MUX's output to the cable modulator.

That might be overkill, but it's a solution that SHOULD work based on equipment
I'm familiar with. You can probably pick up a suitable used quad or MUX for
relatively cheap.

 

[Matt Ion]

Milhouse Van Houten wrote:




oh.. the link:
http://www.tvone.com/c2-7200-main.shtml?rid=hdnews

As I said, any basic four-channel MUX will let you do the PIP part... the trick
is in running the other six cameras in sequence WITHIN the PIP window. Appears
that this one MIGHT do that (the "Dual PIP Mode" description is somewhat
marketing-blather-heavy, technical-info-light), but the rest of the features are
EXTREME overkill.

Then again, when you can do nice transitions between camera views...

 

[Matt Ion]

How much degraded signal would you get that way. It sounds like he is using
upper channels so what about tilt or impedance mismatch altering the quality
on the community channel?

I'd think degradation would be minimal... normal signal flow would be camera ->
modulator, or camera -> MUX/switcher -> modulator... at worst this is camera ->
switcher -> MUX -> modulator. Considering they're showing what I assume to be
only "infomercial"-type content on the main screen, and no doubt relatively
cheap security cameras in the PIP, I don't think it would be an issue.

Matching/stabilizing the signal might be an issue, but there you're getting way
beyond my level of expertise.

Of course, the other solution would just be a second modulator: put the
community feed on one high-band channel, the switched cameras on another.

Personally, I think having the six switching cameras is an even bigger nightmare
if you want the tenants to be able to view any or all of them as "who's at the
door" shots... "Uh, you'll have to wait a few seconds before I can let you in,
the cameras have to cycle through until I can see you..." Six cameras on, say,
a 3-second dwell, if you JUST miss the one you need, it's another 15-16 seconds
before it comes around again. "Yeah, I know it's a torrential downpour out
there, just gimme another 10 seconds..."

We looked at an install for one highly-wired, gen-x-populated condo tower once -
since they wanted a DVR anyway, we suggested jacking it into the building's
planned internet provision for all the tenants, and set up a web client that
would let any tenants using the building's internet feed, to select any of the
public cameras they'd want to view at any given time. Never did hear back from
them, dunno what they ended up doing...

 

[Petem]

you know what..I found what I was looking for..

Genex from pelco..the mx4016cd..

do all I was looking for

and the worst...I knew it!

a service technician told me that had set-up a genex like that for a
customer 3 years ago,one main camera on the main entrance and the 15 other
cam in the pip in sequence...

I think I need vacation..

 

[Matt Ion]

Interesting... I'll hafta save this thread. Not that I've ever come across a
need for this specific function, but ya never know...

 

[Petem]

we will not supply the community channel hardware..they will produce there
stuff,we will only interface the video of the camera to the community
channel transmission,

the genex will do a fine job,we already took one and showed it to the
customer,we connected an output from a cable box to input 1 then feeded 2
camera to the other in put and made them show in sequence in a pip spot and
the sales is done...

thanks all for the input..