USING INTERNET TO IMPLEMENT REMOTE OPERATION OF PICO DATA LOGGERS
There are cases where the quantities to be monitored and recorded are positioned in “difficult” locations and are best accessed by a remote connection.
There are two ways to solve this technical problem:
A. Place the DA unit (1012, 1016, DrDAQ, etc.) the sensors and the companion PC (Slave PC) in the remote location and operate the Slave from a Master PC.
B. Place the sensors in the remote location and remotely connect them to the DA unit, which is now directly USB connected to the Master PC.
In this post we shall examine one of the many different solutions possible with A.
The proposed solution uses Internet directly, thereby eliminating cables and cabling and allowing any distance between Slave and Master PC, from a few feet to the other side of the world : the two PC’s are connected to Internet and the Master fully controls the Slave by directly acting on the Slave’s Desktop. At today's generally available speeds, control from Master to Slave and Slave's response are instantaneous. No special software needs to be written and the system can be set up in a matter of minutes, thanks to the TV readily downloadable Application and their free interconnection system.
This application is free for non-commercial, non industrial use(e.g. for testing the system). If found useful, then a one time payment for the service is due, according to a price list.
For distances up to a few hundred yards (and to quickly test the system) the best solution is to use (or, if not already available, set up) a WI-FI network which will allow internet sharing by the Master and Slave PCs. If the WI-FI network is already available, then the two PCs will be connected to internet and no additional hardware will be necessay. If not available, then the system pictured in the blocks diagram is very easy to implement by following the set-up instructions coming with the WI-FI Modem Router.
In the next post we shall examine System operation in detail.