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G Shenton

Demonstrating DDS for eXtremely Resource Constrained Environments Webcast September 21 2017

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Register for the Webcast at: http://www.prismtech.com/webcast-signup

Why Attend:

* Understand the challenges posed by environments constrained in computational, memory, power and network capabilities
* Understand the short comings of existing technologies in these environments
* Learn how the upcoming standard DDS for eXtremely Resource Constrained Environments (XRCE) addresses these challenges
* See a demonstration of XRCE in action


As a result of the commoditization of computing and communication technologies, an increasing number of sensing and controlling devices, appliances and gadgetware are now digitalized and connected. In most of the cases these devices, due to cost and/or power constraints are limited with respect to the computational, storage, networking and energy constraints. Most of the standard technologies for messaging and data sharing were designed for environments that did not have these limitations. As a consequence, these standards don’t deal nicely with devices that undergo aggressive sleep cycles or communicate through constrained network such as LoWPAN and LPWAN.

To fill this gap, over a year ago, we started a standardization process at the Object Management Group named DDS for eXtremely Resource Constrained Devices (XRCE) with the intent of filling this gap. DDS-XRCE targets environments where devices may have very little computational power and memory, such as an Arduino Uno which has 2 Kbytes of SRAM and 32 Kbytes of FLASH, may be battery powered and may communicate through constrained networks such as 40-100 Kbps LoWPANs and the newly standardized NB-IoT.

From a high-level perspective, the key requirements that a DDS-XRCE implementation has to satisfy are (1) extremely low footprint – addressing targets such as an Arduino Uno platform, (2) extremely efficient wire protocol – inducing a protocol overhead of just a few bytes over the user data, and (3) support devices that undergo aggressive sleep cycles.

This webcast will (1) introduce PrismTech’s proposal for the DDS XRCE standard, (2) demonstrate analytically its extremely low wire overhead, (3) demonstrate XRCE in action and (4) explain how it compares with competing proposals.

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