O futuro das comunicações: tecnologias e protocolos para M2M

Abstract

The Internet of Things concept reflects the desire to keep not only people connected, but also devices, all of them with the same purpose. Having a substantial progress in wireless sensor networks, Internet and computers it has been possible to improve the level of communication between these devices. In this context, the term M2M comes up as a method to expand the communication between multiple network devices. Communications between machines are presented as a way to achieve this target faster, precisely and continuously which makes them advantageous in relation to communication between human-machine. In this paper are discussed some technologies and open protocols in communication systems machine-machine (M2M) interoperable which can be used in such communication with an emphasis on web services and used protocols. The ReST presents itself as a candidate to standard architecture for services in order to be light and easy to implement. In this context, protocols such as MQTT and COAP emerged as an alternative to transmission of messages between intelligent devices with low power consumption as well as offline messages to not connected devices.