cloudy

Author Topic: Power Measurment  (Read 6402 times)

0 Members and 1 Guest are viewing this topic.

Offline 2cvman

  • Posts: 83
  • Cheers Peter
  • Near Monmouth. UK
Power Measurment
« on: March 04, 2010, 07:11:59 PM »
In the 1 wire Lighting Folder there is an ROM ID for Power Usage?
Is this used in anyway?.

Background.

My utility power meter has a  LED that flashed every "1 watt" consumed.
I believe these are quite common in UK and Europe

To interface optically with the LED I have built a optical sensor (now working).

This will drive a 1 wire counter (as used in HB Rain Gauge).
This part is in transit from Eric at HB

Could an enhancement be done to register and accumulate this count?

In addition I have a day/night electrcity rate in £.p per unit could that be used to caculate cost of usage?

Hope this makes sense:)

Cheers
Peter


Offline Weather Display

  • Posts: 64,538
Re: Power Measurment
« Reply #1 on: March 04, 2010, 11:46:29 PM »
yes, its designed to work as a power counter that way

Offline MrNetworker

  • Shelly Park Weather, Auckland, New Zealand
  • Posts: 75
  • Shelly Park, Howick, Auckland, New Zealand
    • Shelly Park Weather
Re: Power Measurment
« Reply #2 on: March 08, 2010, 10:39:22 PM »
yes, its designed to work as a power counter that way

I Brian,

I currently have the 1-Wire counter connected up to a power meter however the current WD does not work properly. I haven’t bugged you with this issue yet.
The extra line shows up on the main screen but does not change according to the power been used.
The 1-wire counter itself is working/counting fine in 1-wire viewer.
A box in the lightning setup showing the current actual kHz being used would be nice also.   :D

Cheers

Offline 2cvman

  • Posts: 83
  • Cheers Peter
  • Near Monmouth. UK
Re: Power Measurment
« Reply #3 on: March 10, 2010, 04:16:22 PM »
Now have power useage 1 wire counter set up.
I also dont see any change in the graph or the KWh counter.
A feature or an enhancement request I guess.

Cheers
Peter


Offline MrNetworker

  • Shelly Park Weather, Auckland, New Zealand
  • Posts: 75
  • Shelly Park, Howick, Auckland, New Zealand
    • Shelly Park Weather
Re: Power Measurment
« Reply #4 on: March 15, 2010, 09:18:26 AM »
WD will need a value for the users to add to enter how many puleses per kwh as the meters are  different i.e. yours is 1 per kwh if i read that right.


A modified copy of an email to Brian.
The meter I have pulses 800 times per kWh. When I had load running through it, it was pulsing around 14 times per minute when 1200w was being used.


Below are some calculations. I don't know if they are right.


1000w / 800pulses = 1.25

1.25 x 14pulses per min = 17.7

17.5 x 60mins = 1050w current Watts



40w + 60w light bulb:

1000w / 800pulses = 1.25

1.25 x 2 = 2.5

2.5 x 60mins = 150w current Watts (I think this is higher because of the 1 min average)





1 x 40w light bulb:

1000w / 800pulses = 1.25

1.25 x 0.5pulses = 0.625

0.625 x 60mins = 37.5w current Watts



 I would suggest 5 min averages would be the best instead of 1 min due to
the pulse rate being low causing the accuracy to be out.



Cheers




In the 1 wire Lighting Folder there is an ROM ID for Power Usage?
Is this used in anyway?.

Background.

My utility power meter has a  LED that flashed every "1 watt" consumed.
I believe these are quite common in UK and Europe

To interface optically with the LED I have built a optical sensor (now working).

This will drive a 1 wire counter (as used in HB Rain Gauge).
This part is in transit from Eric at HB

Could an enhancement be done to register and accumulate this count?

In addition I have a day/night electrcity rate in £.p per unit could that be used to caculate cost of usage?

Hope this makes sense:)

Cheers
Peter



Offline 2cvman

  • Posts: 83
  • Cheers Peter
  • Near Monmouth. UK
Re: Power Measurment
« Reply #5 on: March 15, 2010, 11:07:23 AM »
It was easy for me:)  the info on the meter says 1 pulse = 1/1000 kwh thats means 1 pulse = 1 watt, checked out with an (early type) wireless power meter, which diplays the Kw/hour but alas has no PC connection.

Agreed other meters may pulse at a different rate, yours 1 pulse = 1.25 watts.

Maybe the code & graphs used in the "Rain" section could be basis for Power Useage

Cheers
Peter


Offline Weather Display

  • Posts: 64,538
Re: Power Measurment
« Reply #6 on: March 22, 2010, 12:58:47 AM »
try a new .zip update

should start to plot on the wind direction graph all well (not retrospective)
using extra temp 2 data storage for graph

Offline MrNetworker

  • Shelly Park Weather, Auckland, New Zealand
  • Posts: 75
  • Shelly Park, Howick, Auckland, New Zealand
    • Shelly Park Weather
Re: Power Measurment
« Reply #7 on: March 22, 2010, 05:53:47 AM »
try a new .zip update

should start to plot on the wind direction graph all well (not retrospective)
using extra temp 2 data storage for graph

Hi Brian,

I have done the update, still no luck. Get a wered -value still.
I have two blue lines showing up now on the wind dir graph :?
In order to get 2cvman's graphs working, could you please add the option to edit the how many pulses per kwh.
i.e. mine is 800 pulses per kwh but 2cvman's is 1000

Cheers

Offline Weather Display

  • Posts: 64,538
Re: Power Measurment
« Reply #8 on: March 22, 2010, 08:22:07 AM »
try another new .zip update
the power count each minute is now logged under view, WS2010/WS2500 data setup
so we can see what is being recorded at least

Offline MrNetworker

  • Shelly Park Weather, Auckland, New Zealand
  • Posts: 75
  • Shelly Park, Howick, Auckland, New Zealand
    • Shelly Park Weather
Re: Power Measurment
« Reply #9 on: March 22, 2010, 08:49:58 AM »
try another new .zip update
the power count each minute is now logged under view, WS2010/WS2500 data setup
so we can see what is being recorded at least



 hum vdd read 1
Power count -13474393
doing the windspeed read routine now 10:30:38 p.m.
windspeed read counter result =1
doing the windspeed read routine now part2 10:30:38 p.m.
flag returned from recallesquared solar 1
raw solar reading =0.0000
0.1


e windspeed read routine now part2 10:31:57 p.m.
1 wire extra temp 1 20.8
flag returned from recallesquared solar 1
raw solar reading =0.0000
0.0
flag result from hum temp read 1
Power count -6737383
doing the windspeed read routine now 10:32:06 p.m.
windspeed read counter result =1
doing the windspeed read routine now part2 10:32:06 p.m.
1 wire extra temp 2 24.0
flag returned from recallesquared solar 1
raw solar reading =0.0000
0.1



raw solar reading =0.0000
0.1
doing the windspeed read routine now 10:34:58 p.m.
windspeed read counter result =1
doing the windspeed read routine now part2 10:34:58 p.m.
flag returned from recallesquared solar 1
raw solar reading =0.0000
0.1
flag result from hum temp read 1
Power count -6737615



raw solar reading =0.0000
0.1
flag result from hum read vad 1
1 wire extra temp 3 29.4
doing the windspeed read routine now 10:37:00 p.m.
windspeed read counter result =1
doing the windspeed read routine now part2 10:37:00 p.m.
Power count -8085335
flag returned from recallesquared solar 1
raw solar reading =0.0000
0.1
1 wire extra temp 4 21.3
doing the windspeed read routine now 10:37:08 p.m.
windspeed read counter result =1



turned from recallesquared solar 1
raw solar reading =0.0000
0.1
flag result from hum vdd read 1
1 wire extra temp 6 24.9
doing the windspeed read routine now 10:42:59 p.m.
windspeed read counter result =1
doing the windspeed read routine now part2 10:42:59 p.m.
Power count -5390626

turned from recallesquared solar 1
raw solar reading =0.0000

raw solar reading =0.0000
0.1
1 wire extra temp 4 21.3
doing the windspeed read routine now 10:43:55 p.m.
windspeed read counter result =1
doing the windspeed read routine now part2 10:43:56 p.m.
1 wire extra temp 5 28.1
flag returned from recallesquared solar 1
raw solar reading =0.0000
0.1
flag result from hum temp read 1
Power count -8086107
doing the windspeed read routine now 10:44:05 p.m.
windspeed read counter result =1
doing the windspeed read routine now part2 10:44:05 p.m.
flag returned from recallesquared solar 1
raw solar reading =0.0000
0.1
flag result from hum vdd read 1


Offline MrNetworker

  • Shelly Park Weather, Auckland, New Zealand
  • Posts: 75
  • Shelly Park, Howick, Auckland, New Zealand
    • Shelly Park Weather
Re: Power Measurment
« Reply #10 on: March 22, 2010, 09:09:47 AM »
I see that the line on the Windgraph has now gone to 0.

Cheers Daniel

Offline 2cvman

  • Posts: 83
  • Cheers Peter
  • Near Monmouth. UK
Re: Power Measurment
« Reply #11 on: March 22, 2010, 03:41:12 PM »
Hi Mr N,

 I'm perplexed... got build 26, how do I view the data as per you post?
  In View WM2010... I only get the 1 wire sensors same as if a view then in the 1 wire setup?

Peter

Offline stuartturrell

  • Stuart
  • Posts: 845
  • Isle of Wight, United Kingdom.
    • stuartturrell
    • Newchurch Weather!
Re: Power Measurment
« Reply #12 on: March 22, 2010, 04:09:51 PM »
this device interests me, where would i go to buy such a thing?

Offline MrNetworker

  • Shelly Park Weather, Auckland, New Zealand
  • Posts: 75
  • Shelly Park, Howick, Auckland, New Zealand
    • Shelly Park Weather
Re: Power Measurment
« Reply #13 on: March 22, 2010, 04:43:41 PM »
Hi Mr N,

 I'm perplexed... got build 26, how do I view the data as per you post?
  In View WM2010... I only get the 1 wire sensors same as if a view then in the 1 wire setup?

Peter

Go Setup -> Advanced/Misc Settings -> Under the Program Tab click Log raw data for testing (as rawultimeterdata.txt)
Then go into WS2010-13/WS2500 to see data.

Cheers

Offline MrNetworker

  • Shelly Park Weather, Auckland, New Zealand
  • Posts: 75
  • Shelly Park, Howick, Auckland, New Zealand
    • Shelly Park Weather
Re: Power Measurment
« Reply #14 on: March 22, 2010, 04:49:39 PM »
this device interests me, where would i go to buy such a thing?

First you need a power meter that has a pulse output such as http://www.trademe.co.nz/Building-renovation/Electrical-lighting/Other/auction-279251715.htm (This is the same as mine) Pins 2&3 or 6&7 have the pulse optic isolated output (i.e. its safe).

You simply connect this up to a Hobby-Boards 1-wire counter minus the battery (removing the battery is a must) http://www.hobby-boards.com/catalog/product_info.php?cPath=22&products_id=42
I will see if I can attach a diagram if I can find it.

Cheers