applied_heat

What is your IOT metrics stack?

Yes drop the “previous error” by setting the integral to zero when the setpoint changes such that the sign of the error changes.

If the derivative is on the error when the setpoint is changed all of the sudden the error is increasing instead of decreasing so it works as desired.

There are many books on control systems that cover different forms of the PID algorithm and what applications they suit.

I prefer the velocity form or double derivative form for the simplicity of managing the integrator and applying real world limits on maximum and minimum outputs and rate of change of output. I basically never need such a fast response that it is worth bothering with D.

A mathematics professor solved the differential equations governing my processes so now I can calculate the exact correct gains for critical damping and simulate the response for different limitations such as input sensor resolution and measurement delays. It is wonderful.

I have seen people out early in the morning collecting glacier ice for that evenings cocktails in high end restaurants

Neat idea but have never bothered myself

Too late, Samsung appliances are disposable garbage now.

Tesla doesn’t have buttons for the aforementioned functions

I can’t stand things that are hidden until I mouse over or click on them. Just draw everything and let me scroll

Ottawa, Ontario, Canada

I got 2.2/1.1 mbit Adsl in 1997, it was awesome! Really helped me dominate in quake

Could be contracts made ahead of time. Power takes the path of least resistance, they might not have that precise control on the intertie flows. Or perhaps BC and Saskatchewan are under generating themselves

They say low imports are part of the problem. BC has been importing power recently due to drought conditions through the fall the reservoirs are low, so I imagine BC isn’t selling much power to Alberta. In fact Alberta is exporting 96 MW at the moment[0]

Sounds like some folks in Alberta are one technical or mechanical problem away from being pretty cold, frozen water pipes, half charged car, etc.

The price has gone to the ceiling of $.99 per kWh [1]

0: http://ets.aeso.ca/ets_web/ip/Market/Reports/CSDReportServle...

1: http://ets.aeso.ca/

They are measuring the temperature out on the line

I think it means on average they can transmit 30% more current since they know the temperature of the lines for a given load, ambient temp, and air speed.

It doesn’t help on a hot day with no wind.

The transmission systems I have seen mimic geography - mostly transmitting power from generators to loads such as big cities. It is more of a radial or hub and spoke architecture than a matrix or grid.

It can provide text messaging levels of bandwidth where there is no reception but isn’t competitive with terrestrial towers

They aren’t just trying to sell a router, they are trying to make available a fully open router without blobs right from boot, that is unbrickable, and selling it essentially at cost

Spirit was spun out of Boeing

In hydraulics that symbol is a fixed flow restrictor such as an orifice plate

I was hopeful that all of the unused drilling capacity after the shale boom/bust would allow some of the know how and equipment to be reallocated to geothermal but the grid operators and markets are not offering the premium to firm capacity that is required for the longer lead time and increased capital requirements and increased risk in geothermal projects vs wind and solar which can be augmented with battery storage.

It’s going to suck though when we hit a weeklong stretch of cloudy still weather if there isn’t enough spare capacity from other sources to compensate for the missing wind and solar.

He has shook up and revitalized two industries and proven his ability to execute and get people motivated to do significant work with physics and manufacturing and project management that are complex. It doesn’t seem that far fetched to me and aligns with his sustainable energy focus but downvoters seem to disagree!

Elon to the rescue ?

Imagine instead they were making a meal for the whole fire hall, working out, or talking to each other …

P=sqrt(3) IV cos Theta not just three times IV

65 pages of comments of people losing their minds on MyHouse.wad. I made a few doom and duke nukem maps in my time!

I think just the safety regulations are enough to prevent Chinese automotive entry in to the American market

Geely bought Volvo, what automotive IP do you think China doesn’t have?

Does anyone know any library that can swap a page in the pdf with another without destroying the metadata?

The ladder paradigm has its place, as does function block diagrams, as does what the plc vendors call ‘structured text’.

controlling physical processes like oil refineries, power generation, or sawmills is different from most computer programs as are the consequences of bugs or errors so it makes sense that it takes different people with different interests and skills.

Ladder is a fine choice for visually animating Boolean logic

The fact is the unmodernized plc platforms deliver working machines and plants. The projects are built, commissioned, and unlike modern software they are finished and left to operate instead of constantly modified With no benefit to the end user

The government emmissions test doesn’t measure what comes out of the tail pipe?

Ground positive terminal of battery string instead of grounding negative terminal.

I see this more often on European stuff

I’m still using lenovo t420s has all ports on the back