Tutorial expert 4:


Radio Bridge




Content of the tutorial:


- The Radio Bridge Communication.




Introduction


In this tutorial we will show one more application of the Devise Home radio communication functionality.

Sometimes can happen that the distance from the Master Controller and the terget device is more than the range covered by the radio transmitter. In this situation there are mainly two solutions the user can resort: get a bigger antenna to cover more distance or put in place a radio repeater, or, as we call it, a bridge.

The bigger antenna is a trivial solution and doesn't need to be explained here. Let's go ahed looking at a 'bridge' solution.


Top



The Radio Bridge Communication


Devise Home Web Server has been substantially thought to handle, together with Radio devices, a star configuration. So it is theoretically impossible to provide the control over a next hop of radio links. However there are some software services that have the purpose to reproduce in output the combination of data put in one or more inputs. These services are the Gate for digital and the Mixer for analog paths.

By exploiting the capabilities of those software services, it is possible, in someway and with some limitations, to extend the action field of a Web Server service over next hops of the radio network.



The main limitation of this configuration is that the Web Server does not see the final target (e.g. the Led). It only knows about the presence of the Gate. So any properties of the final target, but his on/off status, is not manageable by the Web Server as it would be part of a star radio network.

Please refer to Gate section in Devise Home User Manual to get more information about how to use a Gate service.


Top



Conclusions


This is the last document belonging to the tutorial section of Devise Home. In our journey through the tutorials, we have seen several application examples describing various feature and capabilities of Devise Home itself. At this point the user should have a more clear idea of how structure a new project and what are the instruments in his hands. Of course the list of examples is not exhaustive for all the applications , and it is left to its imagination and creativity to experiment new configurations.

We hope the awareness about the power of Devise Home is now enough to let the user to go ahead by itself. The final goal is to put the user in condition to build projects that satisfy all its needs of controlling everything it is controllable inside home. However, as further help, we provide a complete User Manual that describes all the features of Devise Home and a list of projects that provide turnkey solutions for the most common applications.


<< - Index