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Discussion Groups
Discussion Groups | Piclist | Alternate Communications
A discussion group for the PICMicro microcontroller. Also called the Microchip PIC, this list is dedicated to the use and abuse of this fine, simple, microcontroller. Close to topic posts are welcome, ie. general electronics.
Alternate Communications - Scott Lingerfelt - Dec 28 21:23:00 2003
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I have been looking for alternate means of collecting remote data. I currently utilize the internet for data collection and finding it very difficult to get onto many customer LAN's. I am looking for alternate wireless methods such as satellite, cell network, or radio transmission. Can anyone recommend any low cost methods with low monthly cost or no monthly cost? I have looked at utilizing SMS, Microburst, and Satellite. Anyone with experience with any of these? Any tips? Any recommendations? Thanks in advance, ************************************** Scott Lingerfelt ************************************** --- Outgoing mail is certified Virus Free. Checked by AVG anti-virus system (http://www.grisoft.com). Version: 6.0.555 / Virus Database: 347 - Release Date: 12/23/2003 |
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Re: Alternate Communications - martin de lange - Dec 28 21:54:00 2003
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Hi
It varies a bit from country to country as I am
in NZ it will depending what the networks are based on. If only GSM then you have to
make do with SMS. If CDMA as we are then you are in heaven.
We have been using mobile (cell) comms for
many year for scada systems. SMS works OK but the last year we switched to CDMA
solutions. Many countries use GPRS on this. You basically pay for the data you
send and it is technically considered ONLINE. This has it's funny quirks
though. We use packages that are specially adapted for telemetry apps with low data
transfers per day. It's very cost effective and I know transport operators also use
this.
regards
Martin
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Re: Alternate Communications - Chad Russel - Dec 28 22:35:00 2003
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Telepathy. --- Scott Lingerfelt <> wrote: > > I have been looking for alternate means of collecting remote data. > I > currently utilize the internet for data collection and finding it > very > difficult to get onto many customer LAN's. I am looking for > alternate > wireless methods such as satellite, cell network, or radio > transmission. > Can anyone recommend any low cost methods with low monthly cost or no > monthly cost? I have looked at utilizing SMS, Microburst, and > Satellite. > Anyone with experience with any of these? Any tips? Any > recommendations? > > Thanks in advance, > > ************************************** > Scott Lingerfelt > > ************************************** > --- > Outgoing mail is certified Virus Free. > Checked by AVG anti-virus system (http://www.grisoft.com). > Version: 6.0.555 / Virus Database: 347 - Release Date: 12/23/2003 __________________________________ |
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RE: Alternate Communications - Scott Lingerfelt - Dec 28 22:55:00 2003
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We do have the CDMA network. Any recommended suppliers for modems
etc? Any recommended readings or websites? Would you recommend using an
aggregator or would you install equipment to connect the backbone? Sorry for the
ongoing questions I am trying to get up and running ASAP.
Thanks, Scott
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Re: Alternate Communications - martin de lange - Dec 28 23:07:00 2003
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We use Falcom & Wavecom modems and I would
highly recommend their webs and products. Do not exactly know what you mean with
aggregator but we use the tcp/ip stack inside the modems to limit code size in the
uC.
Also to be considered is the CSD or HSCSD that
are normally found on GSM networks. This is very easy to get started and you use it
in the same way as a normal landline modem.
Falcom has a selection of manuals on their site
for downloading.
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Re: Alternate Communications - Leon Heller - Dec 29 0:36:00 2003
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----- Original Message ----- From: "Scott Lingerfelt" <> To: "Piclist" <> Sent: Monday, December 29, 2003 2:23 AM Subject: [piclist] Alternate Communications > > I have been looking for alternate means of collecting remote data. I > currently utilize the internet for data collection and finding it very > difficult to get onto many customer LAN's. I am looking for alternate > wireless methods such as satellite, cell network, or radio transmission. > Can anyone recommend any low cost methods with low monthly cost or no > monthly cost? I have looked at utilizing SMS, Microburst, and Satellite. > Anyone with experience with any of these? Any tips? Any recommendations? I have used a cellular phone modem for remote access to a people counter, interfaced to an 18F PIC and communicating with a desktop PC fitted with a standard modem. It worked very well although making the software robust - dealing with things like dropped carrier etc. - was a bit tricky. I didn't use SMS, I simply transmitted the data. It's very cheap in terms of running costs. I used a Siemens modem, I think it was an M20 or something like that. Leon -- Leon Heller, G1HSM Email: My low-cost Philips LPC210x ARM development system: http://www.geocities.com/leon_heller/lpc2104.html |
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Re: Alternate Communications - movingbait - Dec 29 2:31:00 2003
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groups.yahoo.com/group/rat_ring a pic2pic sms thing, uses a normal phone interface so u could glue it to your mobile it also allows sending data, so u can make pic dial a number and send 911 |
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