Date: Wed, 6 Jul 2011 15:21:24 +0300 From: Achilleas Mantzios <achill@matrix.gatewaynet.com> To: Dale Kline <DKline@libraryvideo.com> Cc: "freebsd-multimedia@freebsd.org" <freebsd-multimedia@freebsd.org>, Chris Hill <chris@monochrome.org>, Ian Smith <smithi@nimnet.asn.au>, "freebsd-hardware@freebsd.org" <freebsd-hardware@freebsd.org> Subject: Re: FreeBSD and controlling an alarm via relay Message-ID: <201107061521.24690.achill@matrix.gatewaynet.com> In-Reply-To: <02F3A553C174554DA1D5EC7CEE9BDDD78DA1E4@THOR.lvc.com> References: <201107041339.22470.achill@matrix.gatewaynet.com> <201107061249.49637.achill@matrix.gatewaynet.com> <02F3A553C174554DA1D5EC7CEE9BDDD78DA1E4@THOR.lvc.com>
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Hello, not quite. Here is the idea (which has roughly worked in the past but with "peculiar"-= exotic hardware (e.g. 14.4Kbps modem ) : 1) FreBSD server runs zoneminder.=20 2) A deamon polls zoneminder's sharedmem (IPC) to see if we have any kind o= f alert (motion detection) produced. (that means that we verify that some camera de= tected unwanted motion) 3) Upon motion detection within the above daemon a script is called which s= ets some bits in some relay board=20 4) this relay board closes a NO circuit or opens a NC circuit in MCT100 5) MCT100 talks directly to visonic powermax+ control panel and triggers a = burglar alarm I had the above idea working 2-3 years back, with the following differences= with regard to the above a) a http://www.visonic.com/Products/Wireless-Property-Protection/Door-wind= ow-contact-mct-302 door/window was used instead of the dedicated MCT-100 xmitter. MCT-302 had an additiona= l hard-wired input (NO/NC/EOL) which behaved like a distinct zone with its own xmitter, pretty much like the MCT-100 doe= s. Problem with that was that the battery=20 went off too early and also the contact was completely damaged/malfunctioni= ng in the end. That is why i opted for the more dedicated MCT-100 xmitter which is designed to do just that, (= as you said) sense for difference in current in the circuit and transimt an event to the powermax+ central panel. b) instead of a dedicated-specialized relay board, i was utilizing an old Z= yXel modem, which i had connected in series=20 with the MCT-302 NC circuit. Normally the ZyXel allowed for current to pass= through the circuit. when the zoneminder-polling daemon detected an unwanted motion detection it= run: vm shell -l cuad1 -S offhook_onhook.pl (vm comes with mgetty) where offhook_onhook.pl looked like: #!/usr/bin/perl # use Modem::Vgetty; my $v =3D new Modem::Vgetty; $v->device('DIALUP_LINE'); $v->send("ATH1"); sleep(2); $v->send("ATH0"); This=20 $v->send("ATH1"); sleep(2); $v->send("ATH0"); part seemed to do the trick just fine. Thing, is that i am thinking these days, of trying either to re-do the old = 1.23 zoneminder port for FreeBSD 8.2 or join bsam@freebsd.org, in his effort to have a fully functioning zonemin= der 1.24 port with local bktr camera support. Along with that, i want to get rid of the old "MCT-302/ZyXel model" way and= try something better and faster. That is the whole story, i hope i made it clear enough :) =CE=A3=CF=84=CE=B9=CF=82 Wednesday 06 July 2011 14:55:45 =CE=BF/=CE=B7 Dale= Kline =CE=AD=CE=B3=CF=81=CE=B1=CF=88=CE=B5: > Hi, > I guess I don't understand your application here. The Visonic is a batte= ry operated UHF remote alarm transmitter, that looks at a wired loop for a= change in condition (a door magnetic reed sensor, for example) and then it= transmits an alert to a remote Radio Receiver (MCR-304) if that door opens= or closes unexpectedly. The MCT100 has a three volt battery with an opera= ting life of 45 - 50 months according to the spec. It does not need a volt= age supply, nor would you want to turn it on and off during operation. > The Relay boards, on the other hand, are capable of turning on and off th= e four or eight relays from your computer commands. The relays are capable= of switching ANY AC or DC voltage, at a rated current (24 VDC OR 120 VAC @= 15 Amps and so on). The 5 volt @ 72ma rating is the voltage and current t= hat the board must supply to make the relay close. > The green terminal blocks then connect to a floodlight (for example) that= would turn ON after the UHF Receiver that is listening to the MCT100 Trans= mitter indicates that someone has opened or closed the door mentioned in th= e first paragraph. > Am I following what you want to do? > -----Original Message----- > From: owner-freebsd-hardware@freebsd.org [mailto:owner-freebsd-hardware@f= reebsd.org] On Behalf Of Achilleas Mantzios > Sent: Wednesday, July 06, 2011 5:50 AM > To: Ian Smith > Cc: freebsd-multimedia@freebsd.org; Chris Hill; freebsd-hardware@freebsd.= org > Subject: Re: FreeBSD and controlling an alarm via relay >=20 > another thing that puzzles me is power. > This board : http://www.ebay.co.uk/itm/USB-Eight-Channel-Relay-Board-RS23= 2-Serial-Controlled-/110710333092?pt=3DUK_BOI_Electrical_Components_Supplie= s_ET&hash=3Ditem19c6d99ea4 > needs VDC 12V supply=20 > while this one : http://www.ebay.co.uk/itm/USB-Four-4-Relay-Module-Board-= Home-Automation-/180646300804?pt=3DLH_DefaultDomain_0&hash=3Ditem2a0f5bcc84 > is self powered from USB. >=20 > batteries do not come cheap, and having an extra AC/DC adaptor is not ver= y good either ... >=20 > another thing is the relay parameters, i see various figures : > Relay parameters: 5V / 72mA, 15A/24VDC (120VAC), 10A/250VAC or > Each switch 12VDC/15A or 240VAC/10A or > Open (No) and Closed (NC) Contacts rated for voltages: 12VDC/15A; 24VDC/1= 5A; 125VAC/15A; 250VAC/10A >=20 > my specific application i want to drive is this wireless xmitter : > http://www.visonic.com/Data/Uploads/MCT_100_Installer_Guide_English_DE224= 1U.pdf > Should i assume my device that i want my relay to control will have volta= ge of 3V? >=20 > for which Voltage/Ampere figures should i opt? are those figures crucial? >=20 > thanx a lot >=20 > =CE=A3=CF=84=CE=B9=CF=82 Wednesday 06 July 2011 11:03:14 =CE=BF/=CE=B7 Ia= n Smith =CE=AD=CE=B3=CF=81=CE=B1=CF=88=CE=B5: > > On Tue, 5 Jul 2011, Achilleas Mantzios wrote: > > > =EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF= =BF=BD Tuesday 05 July 2011 16:10:59 =EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD= =EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF= =BF=BD=EF=BF=BD: > > > > On Mon, 4 Jul 2011, Achilleas Mantzios wrote: > > > >=20 > > > > [snip] > > > >=20 > > > > > I was thinking of some relay board (instead of the old modem),=20 > > > > > possibly ethernet controlled > > > >=20 > > > > This box has relays and GPIO available via ethernet. It's probably= =20 > > > > overkill for your application, but it's well made and easy to use: > > > >=20 > > > > http://www.extron.com/product/product.aspx?id=3Dipltcr48&s=3D0 > > > >=20 > > >=20 > > > That is too big for my application, thanx anyway. > > > Most probably i'll go for something cheaper like this one=20 > > > http://www.ebay.co.uk/itm/USB-Eight-Channel-Relay-Board-RS232-Serial= =2DControlled-/110710346488?pt=3DUK_BOI_Electrical_Components_Supplies_ET&h= ash=3Ditem19c6d9d2f8 > >=20 > > These look quite well designed and built to me, reasonably priced new,= =20 > > but check out the/a source site [1] for various models, 1- and 4-relay= =20 > > boards too, or if you prefer, RS-232 serial rather than USB interface=20 > > for the 8-relay boards. There's also a simple parallel port to 8 TTL=20 > > outputs board (hi Tim!) and various other stuff. I'm tempted myself. > >=20 > > [1] http://sigma-shop.com/category/4/relay-boards.html > > [2] http://www.sigma-shop.com/page/12/manuals.html > >=20 > > > Could i use the ucom driver to talk to the USB device like a normal = serial device, via /dev/cua*** ? > > > The above link says one needs to talk to the relay with: > > > 8 Data, 1 Stop, No Parity,Baud rate : 9600 > > > and the commands look like: > > > FF 01 00 (HEX)=20 > > > or=20 > > > 255 1 0 (DEC) > > >=20 > > > could i be able to specify those over ucom?=20 > >=20 > > If so, great. If not and you have a serial port, the code will be the= =20 > > same anyway, except the port used. I grabbed most of the manuals from= =20 > > [2] and found the Linux software examples are all this one: > >=20 > > =3D=3D=3D=3D=3D=3D=3D > > Linux : > > The USB-serial device is automatically detected and mapped to /dev/ > > ttyUSB0 (or USB1 in case there is already a similar device). > > My test script: (Thanks Julian!) > > -------------------------------------------------------- > > # cat relay.sh > > while true > > do > > echo -e "\xFF\x00\x00" > /dev/ttyUSB0 ; sleep .1 > > echo -e "\xFF\x00\x01" > /dev/ttyUSB0 ; sleep .1 > > echo -e "\xFF\x00\x00" > /dev/ttyUSB0 ; sleep .1 > > [..] > > echo -e "\xFF\x01\x01" > /dev/ttyUSB0 ; sleep .1 > > echo -e "\xFF\x02\x01" > /dev/ttyUSB0 ; sleep .1 > > [..] > > echo -e "\xFF\x07\x01" > /dev/ttyUSB0 ; sleep .1 > > echo -e "\xFF\x08\x01" > /dev/ttyUSB0 ; sleep .1 > > echo -e "\xFF\x01\x00" > /dev/ttyUSB0 ; sleep .1 > > echo -e "\xFF\x02\x00" > /dev/ttyUSB0 ; sleep .1 > > [..] > > echo -e "\xFF\x07\x00" > /dev/ttyUSB0 ; sleep .1 > > echo -e "\xFF\x08\x00" > /dev/ttyUSB0 ; sleep .1 > > =3D=3D=3D=3D=3D=3D=3D > >=20 > > If using sh[1] you might need to use \0377 instead of \xFF > >=20 > > > do you know any application, perl library, utility or just a guide f= or standard C serial port programming? > >=20 > > Anything that can write bytes to a serial port - perl's overqualified :) > >=20 > > [..] > >=20 > > cheers, Ian >=20 >=20 >=20 =2D-=20 Achilleas Mantzios
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