SignalR. Web - Desktop interaction Step by Step in ASP.Net

Hi,

I am new to SignalR technology.

I have two application one is web and another is desktop application. Write now I am refreshing My web application in every 3 second to get details from my desktop application.

I want to achieve this through SignalR.

My desktop applicationa (Act as a hub/server and doing all the calculations)  and web application request data from this desktop application as both are hosted on same machine.

How to achieve this.

Thanks