Machine to machine (M2M) is direct communication between devices using any communications channel, including wired and wireless.[1][2]
Machine to machine communication can include industrial instrumentation, enabling a sensor or meter to communicate the information it records (such as temperature, inventory level, etc.) to application software that can use it (for example, adjusting an industrial process based on temperature or placing orders to replenish inventory).[3] Such communication was originally accomplished by having a remote network of machines relay information back to a central hub for analysis, which would then be rerouted into a system like a personal computer.[4]
More recent machine to machine communication has changed into a system of networks that transmits data to personal appliances. The expansion of IP networks around the world has made machine to machine communication quicker and easier while using less power.[5] These networks also allow new business opportunities for consumers and suppliers.[6]
^""Machine-to-Machine (M2M) Communication Challenges Established (U)SIM Card Technology" - GD". Gi-de.com. Archived from the original on 2008-01-07. Retrieved 2014-01-21.
^"Machine to Machine (M2M) Technology in Demand Responsive Commercial Buildings" (PDF). Archived from the original (PDF) on September 30, 2008. Retrieved 2014-01-21.
^"M2M: The Internet of 50 Billion Devices", WinWin Magazine, January 2010.
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