Within a paper at the HTL3Rennweg an IP-Plugboard was designed as a multiple socket outlet that can be remote-controlled over the internet. The device sends the status of each outlet via the internet, using the IP-protocol, to the user application that visualizes all the received information.
To swap the status of a certain outlet the user just has to click the outlet that should be changed and the IP-Plugboard will receive and operate the commands.
This project was divided into three different sections which worked parallel. After the implementation all sections were merged together to one component.
The user needs to login before he is able to use the functions on the IP-Plugboard. Each command has to contain a trailing session-ID. This session-ID helps to avoid intruders from using an existing connection. After termination of an existing session the session-ID becomes invalid and a new TAN-Code must be used to login again.
The IP-Plugboard is able to uncover "Synchronize-Floods" that may make the IP-Plugboard shutdown. Because of that the IP-Plugboard can be classified as very safe device.
In some cases the device connot receive any acknowledges from the user application because the connection refused or the PC crashed. Because of that the IP-Plugboard is going to close the existing session after a few seconds of idling.
The IP-Plugboard is the resulting product of six months of working during the last year at the HTL3Rennweg.