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Chapter 6.

Conclusion

The goals of this work have been achieved: The presented soft- and hardware chain provides

a uniﬁed framework between Intelligent Environments (IE) and two Home Automation (HA)

systems Intertechno (IT) and HomeEasy (HE). The ﬁrst part of this chain is a HA gateway

that was adapted from a previous work of the author. Its disadvantages were almost completely

eliminated and it is now a commercially viable system, which will further support its distribution.

The next parts of the information chain are several software layers. They abstract the information

ﬂow and allow communication with either highly abstracted data structures or simple protocol

messages. A database service supervises the current states of all HA devices and stores their

proﬁles and connections, which can be easily managed via graphical functions. Furthermore, a

protocol translation service allows interconnecting HE and IT devices so that they can be used as

if they were of the same type.

There were no major problems during the implementation phase or when commissioning the sys-

tem. Final benchmark tests and two 72h deployments in real environments conﬁrmed the stability

and the high performance of the system. However, there are major problems that come with

the use of the selected HA systems: both IT and HE devices are unidirectional, therefore reliable

communication cannot be guaranteed. Consequently, the presented system is not applicable for

critical tasks, such as HVAC or security systems. To make this possible an algorithm for periodic

signal repetition could be implemented or other bidirectional HA systems could be added. Further

extensions are already planned: For example the action manager could enable time-scheduled con-

trol or a combination of HA events, such as the reception of a certain protocol, with the commands

of the gateway. The scope of possibilities is manifold; therefore the infrastructure developed and

created in this work is a good starting point for further investigation of this topic. It can give

food for thought for other developers with similar goals.

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RFXCOM RFXtrx433 Especificaciones Pagina 77