Commodore PC Still Controls Heat and A/C At 19 Michigan Public Schools
jmulvey writes: Think your SCADA systems are outdated? Environmental monitoring at 19 Grand Rapids Public Schools are still controlled by a Commodore Amiga. Programmed by a High School student in the 1980s, the system has been running 24/7 for decades. A replacement has been budgeted by the school system, estimated cost: Between $1.5 and 2 million. How much is your old Commodore Amiga worth?
So less than 2 dozen schools need to spend upwards of $2 million dollars to... control the HVAC?
Really?
That is the bigger issue, IMHO...
Yeah. You could probably replace the thing with a raspberry pi .... at each location ... with a custom controller card.. and another one to control them all... for about $5,000
$2M ? Someone's pork barrel overfloweth.
Environmental control and monitoring becomes complicated when you're considering large buildings. At that size you need a system that controls how much your heat plant or cooling system is producing, as well as controlling fans and baffles to ensure that the cooking classroom, with a dozen ovens operating(or 30 computers) on the 3rd floor of the sunny side of the building stays comfortably cool while the the traditional English room on the shaded side of the first floor doesn't actually freeze.
The reason it's $2M is the amount of programming and equipment replacement necessary, standard government waste, and the fact that they're no longer willing to let students/staff do it.
I don't read AC A human right
It IS a PC, as in the generic sense of "personal computer". A Mac is a "PC" too. . .
So anyone who can write a program for that platform that is still running problem-free after 30 years deserves to be making stacks of cash in the embedded/IoT space.
Also, shameless plug: http://amiga30.com/
Editor, A1-AAA AmeriCaptions
I'm not 100% sure it's governmental pork... commercial HVAC control systems can get hella expensive in a hurry, depending on what you're putting in. I suspect it's going to be more than just dropping in a new PC/server/whatever... a buttload of updated sensors and control equipment will likely have to go in along with it (esp. given the age).
Price it sometime, then scale that cost up for 19 large buildings. $2m comes to roughly $105k per school; as far as buildings of that size go, that ain't half bad.
Quo usque tandem abutere, Nimbus, patientia nostra?
And what do you do if a part dies? Where are you going to get parts for something that has not been manufactured for 20+ years?
Obviously it needs to be replaced just so you can have something that can be repaired. The $2mil probably includes upgrading a large part of the HVAC system. If you have a 20+ year old computer controlling the HVAC, then you probably have a 20+ old HVAC.
Just a Tuna in the Sea of Life