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词条 Draft:Cellemetry Data Services
释义

  1. Please list your top THREE sources here:

  2. Cellemetry

  3. History

  4. Products and technology

  5. Legacy

  6. References

{{AFC submission|d|context|u=CSYguy|ns=118|decliner=AngusWOOF|declinets=20190317190242|ts=20190317175533}} {{AFC submission|d|v|u=CSYguy|ns=118|decliner=AngusWOOF|declinets=20190307200918|reason2=corp|small=yes|ts=20190307192036}} {{AFC submission|d|nn|u=CSYguy|ns=118|decliner=Theroadislong|declinets=20190224191839|small=yes|ts=20190224175113}} {{AFC comment|1=Needs to be organized better to explain how it is a company or a technology. Also need to provide the top THREE sources here so we can review those. You can list the ones on my talk page if those are the strongest ones, as long as they aren't primary (by the company founders / researchers). AngusWOOF (bark • sniff) 19:02, 17 March 2019 (UTC)}}{{AFC comment|1=Please provide THREE sources that show this is a notable company AngusWOOF (bark • sniff) 20:09, 7 March 2019 (UTC)}}{{AFC comment|1=no reliable sources, Wikipedia cannot be used as a reference Theroadislong (talk) 19:18, 24 February 2019 (UTC)}}

Please list your top THREE sources here:

  • first source
  • second source
  • third source

Cellemetry

Cellemetry Data Services, abbreviated Cellemetry and stylized Cellemetrysm was a wireless data service (please update lead sentence).[1] data services was introduced commercially in 1996[2] and was one of the first Internet of things[3][4][5] networks operating on a worldwide basis. Cellemetry was designed to operate as an overlay to the cellular network allowing data messages to be sent or received from virtually anywhere where cellular coverage existed[6].

History

(Add history of company here, founders, creation, locations, products generated, acquisitions and mergers, disbanding)

Cellemetry was invented by Peter Roach, Scott Laster, and Ed Comer[7] in 1994[7] while working for BellSouthsm.[8] BellSouthsm partnered with Numerexsm[9] to offer Cellemetry[10] and Numerex eventually acquired the entire rights to Cellemetry data service[11]. Numerexsm was eventually acquired by Sierra Wireless.[12]

Products and technology

(explain briefly the different technologies the company developed)

[13][14][15]

Cellemetry operated by sending messages over the signalling channel of the analog cellular network[16]. The Cellemetry data modem accomplished this by using a non-dialable telephone number as the device identifier and inserting a device generated data message in the field designated for the cellphone's serial number. The Cellemetry device would then send out a registration message[17][16] to the home cellular system. The Cellemetry message would then transverse the cellular signaling system number 7 (SS7[18]) signaling network along with all of the normal cellular signaling traffic. When the message arrived at the home cellular system, a specialized server[19] would act as the home location register (HLR[20])and would take the message off of the cellular network and send it to the intended application or application service provider[21][22][23][24][25][26].

For an outbound message the Cellemetry server would receive a message from an application or an application service provider and then send a 'ring' signal to the device as if it was ringing a normal cellular telephone (need more information and a cite).

Cellemetry channel from the device to the network (inbound message) was much more robust than the channel from the network to the device (outbound message). The Cellemetry outbound messages were generally restricted to trigger messages that caused a large number of devices to perform an action, report status, or other similar action. For example, an outbound messages may cause a set of vending machines to report their current inventory level, change pricing, etc. Later versions of Cellemetry used other signaling messages such as USSD messages[27] as the outbound messaging mechanism. (We need help fleshing out the outbound messaging section.)

Cellemetry had a number of advantages that led to its wide spread adoption worldwide.

  • The Cellemetry device was programmed to monitor the cellular signaling channel before sending a message over the cellular signaling channel. If the channel was busy over a preprogramed amount of time, the device would not attempt to send the message. If the message was not sent, the Cellemetry device would then wait a random period of time and then check the signaling channel again. If the cellular signaling channel was still busy, the Cellemetry device would double the wait time and attempt the process again. The Cellemetry device would continue this process until the non-busy threshold was met[28].
  • Since the Cellemetry messages were carried over the cell site signaling channel, they tended to have a higher coverage than cellular voice calls. This was mainly due to the architecture of the signaling channel where the messages are repeated several times (typically three) and included check bits. This allowed Cellemetry devices to be placed further into buildings or on the edge of the cellular coverage were normal voice calls may not have been possible[29]
  • Cellemetry devices utilized many of the components of a traditional analog cellular telephone. This allowed the Cellemetry devices to take advantages of the cost efficiencies of the rapidly growing cellular telephone base[13]. Many early Cellemetry modems were analog cellular telephones without the human interface or the case.

As the analog cellular network was phased out, the analog Cellemetry devices were eventually discontinued or transitioned to the GSM network using an different technology[30]

Legacy

(description of stuff that other technologies and companies have used from Cellemetry)

References

1. ^{{cite web|url=https://www.rcrwireless.com/19970407/archived-articles/bellsouth-chalking-up-contracts-for-cellemetry|title=BELLSOUTH CHALKING UP CONTRACTS FOR CELLEMETRY|date=30 November 1999|publisher=}}
2. ^https://books.google.com/books?id=TQtTAAAAMAAJ&q=cellemetry&dq=cellemetry&hl=en&sa=X&ved=2ahUKEwiltbWM14nhAhXiQd8KHcu-DggQ6AEwB3oECAkQAg
3. ^{{cite web|url=https://www.zdnet.com/article/what-is-the-internet-of-things-everything-you-need-to-know-about-the-iot-right-now/|title=What is the IoT? Everything you need to know about the Internet of Things right now|first=Steve|last=Ranger|website=ZDNet}}
4. ^{{cite web|url=https://www.sierrawireless.com/company/our-history-of-innovation/|title=History of IoT Innovation &Technology Leadership - Sierra Wireless|website=www.sierrawireless.com}}
5. ^{{cite web|url=https://www.digitalcomtech.com/about/history/|title=Digital Communications Technologies - History|publisher=}}
6. ^{{cite web|url=https://www.rcrwireless.com/19990125/archived-articles/with-footprint-nearly-in-place-cellemetry-focuses-on-applications|title=WITH FOOTPRINT NEARLY IN PLACE, CELLEMETRY FOCUSES ON APPLICATIONS|date=30 November 1999|publisher=}}
7. ^{{cite web|url=https://www.rcrwireless.com/19950807/carriers/bellsouth-tests-new-technology-for-wireless-tracking-capability|title=BELLSOUTH TESTS NEW TECHNOLOGY FOR WIRELESS TRACKING CAPABILITY|date=30 November 1999|publisher=}}
8. ^{{cite web|url=http://www.fundinguniverse.com/company-histories/bellsouth-corporation-history/|title=History of BellSouth Corporation – FundingUniverse|website=www.fundinguniverse.com}}
9. ^{{cite web|url=https://books.google.com/books?id=nOFoPOIaeU8C&pg=PA9&lpg=PA9&dq=cellemetry+introduced&source=bl&ots=tPVl01SHs8&sig=ACfU3U1aQEHZAEqQyRnacO1G4CdqSPXrBA&hl=en&sa=X&ved=2ahUKEwjxstyYqvDgAhUEd98KHRnzD8AQ6AEwBHoECAUQAQ#v=onepage&q=cellemetry+introduced&f=false|title=Wireless Telecommunications Monthly Newsletter|first=Hui Pan|last=Editor|publisher=Information Gatekeepers Inc|via=Google Books}}
10. ^{{cite web|url=https://wikivisually.com/wiki/Numerex|title=WikiVisually.com|website=wikivisually.com}}
11. ^https://www.bizjournals.com/atlanta/stories/2003/03/31/daily10.html
12. ^{{cite web|url=https://www.sierrawireless.com/company/newsroom/pressreleases/2017/12/sierra_wireless_inc_completes_acquisition_of_numerex_corp/|title=Sierra Wireless, Inc. Completes Acquisition of Numerex Corp.|website=www.sierrawireless.com}}
13. ^1 {{cite book|url=https://doi.org/10.1007/978-1-4615-6237-5_1|title=Wireless Personal Communications: Advances in Coverage and Capacity|first=Thomas F.|last=Evans|editor-first1=Jeffrey H.|editor-last1=Reed|editor-first2=Theodore S.|editor-last2=Rappaport|editor-first3=Brian D.|editor-last3=Woerner|date=7 March 1997|publisher=Springer US|pages=1–9|via=Springer Link|doi=10.1007/978-1-4615-6237-5_1}}
14. ^https://books.google.com/books?id=AiWaX6b5TtwC&pg=PA199&lpg=PA199&dq=sierra+wireless+cellemetry&source=bl&ots=fu1MlC_2-r&sig=ACfU3U13vw9STBtvLQmwKogRV3K3i-Ws-Q&hl=en&sa=X&ved=2ahUKEwjX1t641onhAhVJdt8KHRnaCSA4ChDoATAAegQIBhAB#v=onepage&q=sierra%20wireless%20cellemetry&f=false
15. ^https://books.google.com/books?id=BzDY0lk-N4UC&q=cellemetry&dq=cellemetry&hl=en&sa=X&ved=2ahUKEwiltbWM14nhAhXiQd8KHcu-DggQ6AEwBnoECAgQAg
16. ^1 http://alarmsbc.com/tech/pdf/overskyroute.pdf
17. ^{{cite web|url=https://books.google.com/books?id=OnDGbzMRcbwC&pg=SA1-PA36&lpg=SA1-PA36&dq=cellular+registration+message+amps&source=bl&ots=FEUgqHLWQF&sig=ACfU3U1oyc2kyeqha1_3km0PmB6o-JfcNA&hl=en&sa=X&ved=2ahUKEwiT0qXi59TgAhUShuAKHRQzA2sQ6AEwDXoECAIQAQ#v=onepage&q=cellular+registration+message+amps&f=false|title=Cellular and Mobile Communications|first=V. Jeyasri|last=Arokiamary|date=7 March 2019|publisher=Technical Publications|via=Google Books}}
18. ^{{cite web|url=https://en.wikipedia.org/w/index.php?title=Signalling_System_No._7&oldid=884741071|title=Signalling System No. 7|date=23 February 2019|publisher=|via=Wikipedia}}
19. ^{{cite web|url=https://books.google.com/books?id=_F7mBwAAQBAJ&pg=PA3&lpg=PA3&dq=cellemetry+introduced&source=bl&ots=cM4whjGplk&sig=ACfU3U1O8NWR3VhaBCYdTr0QH3Gn592WaQ&hl=en&sa=X&ved=2ahUKEwjxstyYqvDgAhUEd98KHRnzD8AQ6AEwBXoECAQQAQ#v=onepage&q=cellemetry+introduced&f=false|title=Wireless Personal Communications: Advances in Coverage and Capacity|first1=Jeffrey H.|last1=Reed|first2=Theodore S.|last2=Rappaport|first3=Brian D.|last3=Woerner|date=6 December 2012|publisher=Springer Science & Business Media|via=Google Books}}
20. ^{{cite web|url=https://searchnetworking.techtarget.com/definition/Home-Location-Register|title=What is Home Location Register (HLR)? - Definition from WhatIs.com|website=SearchNetworking}}
21. ^{{cite web|url=https://www.rcrwireless.com/20010618/archived-articles/products-18|title=Products|date=30 November 1999|publisher=}}
22. ^{{cite web|url=http://phx.corporate-ir.net/phoenix.zhtml?c=65936&p=irol-newsArticle&ID=94945&highlight=|title=News Releases|website=phx.corporate-ir.net}}
23. ^{{cite web|url=https://www.waterworld.com/articles/print/volume-18/issue-11/automation-technology/cellular-system-solves-lift-station-monitoring-problems.html|title=Cellular System Solves Lift Station Monitoring Problems|website=www.waterworld.com}}
24. ^{{cite web|url=https://patents.google.com/patent/US6995666B1/en|title=Cellemetry-operated railroad switch heater|publisher=}}
25. ^{{cite web|url=https://www.theautochannel.com/news/2003/01/09/152598.html|title=InterTrak, Televoke & Numerex Introduce Automotive Safety Product, LifeTrak; ``Security is More Important Than Ever Before|website=www.theautochannel.com}}
26. ^{{cite web|url=https://www.bloomberg.com/research/stocks/private/snapshot.asp?privcapId=4949225|title=Cellemetry, LLC: Private Company Information - Bloomberg|website=www.bloomberg.com}}
27. ^{{cite web|url=https://django-ussd-airflow.readthedocs.io/en/latest/how_ussd_works.html|title=How ussd works — Ussd Airflow 0.0 documentation|website=django-ussd-airflow.readthedocs.io}}
28. ^{{cite book|url=https://doi.org/10.1007/978-1-4615-6237-5_1|title=Wireless Personal Communications: Advances in Coverage and Capacity|first=Thomas F.|last=Evans|editor-first1=Jeffrey H.|editor-last1=Reed|editor-first2=Theodore S.|editor-last2=Rappaport|editor-first3=Brian D.|editor-last3=Woerner|date=7 March 1997|publisher=Springer US|pages=1–9|via=Springer Link|doi=10.1007/978-1-4615-6237-5_1}}
29. ^1 https://patentimages.storage.googleapis.com/e5/b4/2e/203d20bddce458/US5526401.pdf
30. ^{{cite web|url=https://www.engadget.com/2008/02/18/analog-cellular-networks-r-i-p-1983-2008/|title=Analog cellular networks, R.I.P.: 1983 - 2008|website=Engadget}}
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