No.142 - Channel Update - Software Projects
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- Опубліковано 27 вер 2024
- I've had time away from hardware to work on 3 separate software projects, 1 professional and the other 2 home grown.
In this video I run through the home grown ones.
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Stuff I didn't mention about the energy project:
1. To get Solis API access you need to contact Solis support and sign a form. There are two API documents, one for reading, one for writing (device control).
2. SolarPV inverter is a Bosch BPT-4-S and has easy http IP address access to the data.
3. I have a temperature and smoke sensor in the Inverter/battery room. There are HI HI values configured to email me if they go too high.
4. My independent energy meter is an OB418 with RS485/Modbus data access.
5. Aircon is a Daikin fitted with the option wifi module, control is simply through http commands on it's IP.
6. Outside temperature is being pulled via OpenWeatherMap.org API.
7. I am publishing all data to PVOutput.org.
8. Apps are written using Visual Studio 2022, and writing in VB. Thats right, VB........purely because I am used to MS Access VBA.
Ian, nice work you did on the software. One important note - you should follow more metrology related terminology in future in GUI such as : calibration = comparison measurement between DUT and reference standard. adjustment = well, process of doing calibration AND adjusting the DUT to reduce the measurement errors. From looks of your UI 3245A CAL. is actually supposed to be 3245A ADJ. and so forth in the other GUI elements. Unless you only measure (calibrate) and write the measurements into some CSV/datalog file and NOT doing adjustment?
Yes, I guess I should follow the proper terminology. I will update the GUI. Too many decades saying it wrong!
On the 3245A, it is making adjustments.
@@IanScottJohnston I'm blaming vendors to mislead everyone, since we keep seeing that misconception in all the manuals, even today.
I need to have a play with your gpib software, quite a while ago I wrote some scope software to connect to any GPIB enabled scope and allow it to be viewed and saved etc on a PC (Windows App), I was not happy that the tektronics workbench would not allow other devices so I wrote my own but never really did much more with it
Do you have a feeling yet for the accuracy of the daily irradiance forecasts? Obviously if they are not great there is not much point in refining the lookup table. Otherwise you might find that you have enough confidence to turn the table into a function - maybe just MX + C, or if things are really good, a quadratic. And do you monitor irradiance yourself, I mean with a photosensor?
It's only been a few days since I modified the hybrid equation.......and I am logging to file some of the data.
I need some really sunny days, so dark cloudy days and a few in-between in order to see properly where I am.
There are other factors which I can't do nothing about in terms of forecast and one is my daily consumption. It's relatively varied.
I don't measure irradiance myself, I just get the data based on my long/latitude from Meteosource.
I have been playing with y=mx linear formula and a quadratic solution, both written as functions I can easily switch between……however, the elephant in the room which upsets the forecasting by straight formula is the house consumption. If it’s high then of course the battery will deplete faster. Most of the house consumption is known, the high days and the low days…….so I may need to factor in this also. Not sure if I really need to go to that level as actually there’s no real harm in charging a little more to cover that.
Great fun!
@@IanScottJohnston when did need ever have anything to do with playing with interesting stuff?
This is massive, thank you for sharing!!
what language is the application written in? (Linux port?)
All my app are written using Visual Studio 2022, Visual Basic. My DevPC is a Win10 machine.
Work smarter!
Are those multimeters from Dave "911 was an inside job" Jones?
Yes they are.
@@IanScottJohnston eheheeh.
I thought I new something about something until I watched you🤣. Thanks for the video.
3:18 & 4:33 - I am fairly certain it is 1 Vdc since you mention it and your DC voltage standard, but on the "Device Meters" tab it says kOhm.
Best Regards
Backseat drivers / bugreporters 🙂
Yes, the kOhm label is user adjustable and is just the default.......you just click on it and change the text to whatever you want. I didn't bother for the video...:-)
@@IanScottJohnston ah that makes sense 🙂
I just charge my batteries to charge at night regardless of the weather. it's 15p+vat / kWh for the night. if the sun shines my batteries are full and i sell the excess back to Octopus for 15p/kWh. so i just lose the cost of the vat, so can't be bothered to automate it. was looking at my inverter "solis as well" but all the ports are full. one is connected to a monitoring unit in the fuse box and the other to a wifi dongle that talks to solis for their app and the installer for fault monitoring.
On the Solis I have an adaptor that plugs into where the wifi dongle port is, so ethernet instead of wifi.....that allows Solis to talk back to the cloud and also gives me access via the IP address......reliable access that is (I hate Wifi).
Exporting is the next thing to do......if batteries have sufficient capacity (Summer) to power the house and there's some left over then dump some to Octopus @ 23.21p / kWh (4pm to 7pm) in my area right now.
@@IanScottJohnston what did you use for the ethernet adaptor? Wifi dongle that's fitted does go off line at times and i have to go and remove it and plug it back in. could be open to putting a switch next to my router and running a network cable to the inverter. was thinking of doing this for some networked camera's so Could kill two birds with one brick.
I'm on the simple export so i get 15p/kWh regardless, but even with this i still don't pay for electric all summer. Currently they own me enough to be bill free for a good few months to come.
Solis Data Logging Stick S2-WL-ST (has RJ45 on the end). I think I just bought it via Ebay. I think there are different versions, so make sure you buy with the right connections for the Solis (4-pin connector if I remember)
@@IanScottJohnston thanks, I'll put one on my to get list
Hi Ian, could you talk a little about how you did your home solar install as I understood this was prohibited in the uk?
I didn't do it myself.......I got a reputable installer for both the solar and battery system, then it's just all about the software.
@@IanScottJohnston Thank you Ian. I suspected there was no legal route to diy in the UK. all the best and thanks for the great content :)
@@gillywild There is a legal route. If your inverter conforms to g98 or g99 you can inform your DNO yourself, I did it . Although I had flat roof space just to lay panels. Not sure I would bother doing my proper roof myself. Also explaining the DIY route to Octopus has been a chore I am still facing.
@@GlennPierce Thanks for that Glenn. How did you get over the prohibition on undertaking the electrical installation work yourself (Hooking the inverter into the consumer unit)?