Editing Telemetry (section)

===Resource distribution===
Many resources need to be distributed over wide areas. Telemetry is useful in these cases, since it allows the logistics system to channel resources where they are needed, as well as provide security for those assets; principal examples of this are dry goods, fluids, and granular bulk solids.

====Dry goods====
Dry goods, such as packaged merchandise, may be tracked and remotely monitored, tracked and inventoried by [[RFID]] sensing systems, [[barcode reader]], [[optical character recognition]] (OCR) reader, or other sensing devices—coupled to telemetry devices, to detect [[RFID tag]]s, [[barcode]] labels or other identifying markers affixed to the item, its package, or (for large items and bulk shipments) affixed to its shipping container or vehicle. This facilitates knowledge of their location, and can record their status and disposition, as when merchandise with barcode labels is scanned through a checkout reader at [[Point of sale|point-of-sale]] systems in a retail store.  Stationary or hand-held barcode [[RFID]] scanners or [[Optical reader]] with remote communications, can be used to expedite inventory tracking and counting in stores, warehouses, shipping terminals, transportation carriers and factories.<ref name="rfid_technology_ariz_univ">[http://www.u.arizona.edu/~obaca/rfid/tech.html "RFID Technology,"] {{Webarchive|url=https://web.archive.org/web/20190423232517/http://www.u.arizona.edu/~obaca/rfid/tech.html |date=2019-04-23 }} [[University of Arizona]], retrieved April 8, 2019</ref><ref name="improving_warehouse_2014_12_naval_postgrad">Burke, Eric M., Maj. U.S. Army and Ewing, Danny L., Jr., Lt., U.S. Navy, ''MBA Professional Report: [https://apps.dtic.mil/dtic/tr/fulltext/u2/a621276.pdf "Improving Warehouse Inventory Management Through RFID, Barcoding And Robotics Technologies,"] {{Webarchive|url=https://web.archive.org/web/20200324005725/https://apps.dtic.mil/dtic/tr/fulltext/u2/a621276.pdf |date=2020-03-24 }}'' December 2014, Graduate School of Business and Public Policy, [[Naval Postgraduate School]], Monterey, CA, retrieved April 8, 2019</ref><ref name="barcoding_and_rfid_2007_jiito">White, Gareth R.T.; Georgina Gardiner; Guru Prabhakar; and Azley Abd Razak [[University of the West of England]], UK), [http://jiito.informingscience.org/articles/JIITOv2p119-132White96.pdf "A Comparison of Barcoding and RFID Technologies in Practice,"] {{Webarchive|url=https://web.archive.org/web/20200808033409/http://jiito.informingscience.org/articles/JIITOv2p119-132White96.pdf |date=2020-08-08 }} ''Journal of Information, Information Technology, and Organizations,'' Volume 2 (2007), retrieved April 8, 2019</ref>

====Fluids====
Fluids stored in tanks are a principal object of constant commercial telemetry. This typically includes monitoring of tank farms in gasoline refineries and chemical plants—and distributed or remote tanks, which must be replenished when empty (as with gas station storage tanks, home heating oil tanks, or ag-chemical tanks at farms), or emptied when full (as with production from oil wells, accumulated waste products, and newly produced fluids).<ref name="remote_tank_monitoring_2019_03_tanktransport_com">Rues, Gerald, MSEE, [http://tanktransport.com/2019/03/remote-tank-monitors-can-save-time-and-money/ "Remote Tank Monitoring Can Save Time and Money,"] {{Webarchive|url=https://web.archive.org/web/20190307175226/http://tanktransport.com/2019/03/remote-tank-monitors-can-save-time-and-money/ |date=2019-03-07 }} March, 2019, ''[http://pubhtml5.com/cgnb/twxm/ Tank Transport] {{Webarchive|url=https://web.archive.org/web/20190307054559/http://pubhtml5.com/cgnb/twxm/ |date=2019-03-07 }},'' magazine, retrieved March 6, 2019</ref> Telemetry is used to communicate the variable measurements of flow and tank level sensors detecting fluid movements and/or volumes by [[pneumatic]], [[hydrostatic]], or differential pressure;  tank-confined [[Ultrasound|ultrasonic]], [[radar]] or [[Doppler effect]] echoes; or mechanical or magnetic sensors.<ref name="remote_tank_monitoring_2019_03_tanktransport_com" /><ref name="esi_tank_sensors">[http://www.leveldevilsensors.com/main/electronic-sensors-inc-esi-level-devil-american-made-tank-monitors-and-tank-monitoring-systems/tabk-sensor/ Tank Sensors & Probes] {{Webarchive|url=https://web.archive.org/web/20190318111356/http://www.leveldevilsensors.com/main/electronic-sensors-inc-esi-level-devil-american-made-tank-monitors-and-tank-monitoring-systems/tabk-sensor/ |date=2019-03-18 }}, Electronic Sensors, Inc., retrieved August 8, 2018</ref><ref name="dozen_ways_2004_dec_1_sensormag_com">Henry Hopper, [https://www.sensorsmag.com/components/a-dozen-ways-to-measure-fluid-level-and-how-they-work "A Dozen Ways to Measure Fluid Level and How They Work,"] {{Webarchive|url=https://web.archive.org/web/20190330163148/https://www.sensorsmag.com/components/a-dozen-ways-to-measure-fluid-level-and-how-they-work |date=2019-03-30 }} December 1, 2018, ''Sensors Magazine,'' retrieved August 29, 2018</ref>

{{See also|level sensor}}

====Bulk solids====
Telemetry of bulk solids is common for tracking and reporting the volume status and condition of [[grain]] and [[livestock feed]] bins, powdered or granular food, powders and pellets for manufacturing, sand and gravel, and other granular bulk solids. While technology associated with fluid tank monitoring also applies, in part, to granular bulk solids, reporting of overall container weight, or other gross characteristics and conditions, are sometimes required, owing to bulk solids' more complex and variable physical characteristics.<ref name="accurately_dry_bulk">"[https://www.powderbulksolids.com/article/Accurately-Measuring-Dry-Bulk-Solids-01-04-2016 Accurately Measuring Dry Bulk Solids] {{Webarchive|url=https://web.archive.org/web/20180316181657/http://www.powderbulksolids.com/article/Accurately-Measuring-Dry-Bulk-Solids-01-04-2016 |date=2018-03-16 }}," January 4, 2016, ''Powder-Bulk Solids'' magazine, retrieved April 8, 2019</ref><ref>[http://citeseerx.ist.psu.edu/viewdoc/download?doi=10.1.1.560.257&rep=rep1&type=pdf "Dynamic Measurement and Simulation of Bulk Solids...,"] {{Webarchive|url=https://web.archive.org/web/20200808143406/http://citeseerx.ist.psu.edu/viewdoc/download?doi=10.1.1.560.257&rep=rep1&type=pdf |date=2020-08-08 }}, ''Task Quarterly'' 7 No 4 (2003), 611–621, retrieved April 8, 2019</ref>