[esp-r] Re: multi sensor control law example

[Aizaz Samuel]

Christopher,

You may also want to look at the global multi-sensor controller which 
has been implemented for flow control. This control senses the state of 
flow controllers (not temperature, pressure etc) and works in the 
following way (assuming you want to control the "connection in question"):
1. In the flow network you define trivial connections (that do not 
affect the simulation much if they are open or shut -- small cracks etc)
2. Control these using flow controllers sensing parameters that you want 
to use to control the "connection in question".
3. Define a global multi-sensing controller, this controller senses the 
state of the control loops of (1) and actuates the "connection in 
question" based on the state of the flow side controllers being on 
AND/OR off

Regards,
Aizaz


On 15/05/13 07:14, Jon Hand wrote:
> There is an exemplar model  which uses a multi-sensor mass flow control
> in a folder with the name training/cellular_hybrid.  It exists in the Linux
> distribution folder as well as on my most recent native windows build
> under C:/Esru/esp-r/training/cellular_hybrid.
>
> If you want to play with an exemplar but do not see if in the list provided i
> n the project manager (sometimes a model folder contains many variants)
> then just copy the cellular_hybrid folder to a safe location and double
> click on the model cfg file.
>
> I did a quick search for the phrase 'multi-sensor' on my Linux box and
> that seems to be the only exemplar model with that kind of flow control.
>
> The flow control can be quite powerful with a multi-sensor. I have used
> these in consulting jobs to enable window opening strategies e.g.
> open window if the outside temperature is over 15C AND less than 24C
> AND the inside temperature is greater than 24C.
>
> In case it helps, here is a link to a native windows installer for the
> development_branch revision 9181
>
> https://dl.dropboxusercontent.com/u/17785121/ESPr_Installers/ESP-r_setup_native_windows_w7_v12_0_9181.exe
>
> Regards, Jon Hand
>
>
> ________________________________________
> From: esp-r-bounces at lists.strath.ac.uk [esp-r-bounces at lists.strath.ac.uk] On Behalf Of Christopher Heard [cheard at prodigy.net.mx]
> Sent: 14 May 2013 18:19
> To: esp-r at lists.strath.ac.uk
> Subject: [esp-r]  multi sensor control law example
>
> Trawling the mailing list I thought that I had found an answer to my needs
>
> vis:
> [esp-r] Re: for the network control
> Jon Hand jon at esru.strath.ac.uk
> Fri Feb 26 05:45:23 GMT 2010
>
> "Look for flow law  'multi sensor on/off'  an example
> of this is included in the exemplar cellular_hybrid"
>
> My wife insists that I am bad at finding things, but I have searched the
> examples that come with the Windows Native installation - upto date as of
> February 2013 and am convinced that the aforementioned example isn't there
> at least under that name.
>
> Where can I find it or another example of "multi sensor on/off" control?
>
> At present I get an
> CFFVAR: mass flow control function
> CFFVAR invalid mass flow sensed external condition 1 day type 1 period 3
>
> ctl file:
>
> no overall control description supplied
> * Mass Flow
> window opening 1
>     1  # No. of controls
> * Control mass    1
> # sensors are nodes Downstairs (  1) & Downstairs (  1)
>     -4    1    1    0  # sensor data
> # actuates flow connection:  11 SouthDown - Downstairs via ktchwndOpn
>     -3   11    0  # actuator data
>      0 # day types follow calendar  4
>      1  365  # valid Mon-01-Jan - Mon-31-Dec
>       4  # No. of periods in day: weekdays
>      1    0   0.000  # ctl type (dry bulb > flow), law (on/off setpoint
> 100.00 direct action ON fraction 0.000.), starting @
>        3.  # No. of data items
>    100.00000 1.00000 0.00000
>      1    3   6.000  # ctl type (dry bulb > flow), law (multi-sensor:
> normally closed with 2 sensors: For sensor 1 sense node Downstairs setpoint
> 21.00 direct action AND sensor 2 ambient T setpoint 21.00 inverse action.),
> starting @
>       18.  # No. of data items
>    0.00000 2.00000 -4.00000 1.00000 0.00000 0.00000 21.00000 1.00000 0.00000
> 1.00000 -3.00000 0.00000 0.00000 0.00000 21.00000 -1.00000 0.00000
>    1.00000
>      1    0  10.000  # ctl type (dry bulb > flow), law (on/off setpoint
> 100.00 direct action ON fraction 0.000.), starting @
>        3.  # No. of data items
>    100.00000 1.00000 0.00000
>      1    3  16.000  # ctl type (dry bulb > flow), law (multi-sensor:
> normally closed with 2 sensors: For sensor 1 sense node Downstairs setpoint
> 21.00 direct action AND sensor 2 ambient T setpoint 21.00 inverse action.),
> starting @
>       18.  # No. of data items
>    0.00000 2.00000 -4.00000 1.00000 0.00000 0.00000 21.00000 1.00000 0.00000
> 1.00000 -3.00000 0.00000 0.00000 0.00000 21.00000 -1.00000 0.00000
>    1.00000
>      1  365  # valid Mon-01-Jan - Mon-31-Dec
>       3  # No. of periods in day: saturday
>      1    0   0.000  # ctl type (dry bulb > flow), law (on/off setpoint 0.00
> direct action ON fraction 0.000.), starting @
>        2.  # No. of data items
>    0.00000 1.00000
>      1    0   9.000  # ctl type (dry bulb > flow), law (on/off setpoint 0.00
> direct action ON fraction 0.000.), starting @
>        2.  # No. of data items
>    0.00000 1.00000
>      1    0  21.000  # ctl type (dry bulb > flow), law (on/off setpoint 0.00
> direct action ON fraction 0.000.), starting @
>        2.  # No. of data items
>    0.00000 1.00000
>      1  365  # valid Mon-01-Jan - Mon-31-Dec
>       3  # No. of periods in day: sunday
>      1    0   0.000  # ctl type (dry bulb > flow), law (on/off setpoint 0.00
> direct action ON fraction 0.000.), starting @
>        2.  # No. of data items
>    0.00000 1.00000
>      1    0   9.000  # ctl type (dry bulb > flow), law (on/off setpoint 0.00
> direct action ON fraction 0.000.), starting @
>        2.  # No. of data items
>    0.00000 1.00000
>      1    0  21.000  # ctl type (dry bulb > flow), law (on/off setpoint 0.00
> direct action ON fraction 0.000.), starting @
>        2.  # No. of data items
>    0.00000 1.00000
>      1  365  # valid Mon-01-Jan - Mon-31-Dec
>       3  # No. of periods in day: holiday
>      1    0   0.000  # ctl type (dry bulb > flow), law (on/off setpoint 0.00
> direct action ON fraction 0.000.), starting @
>        2.  # No. of data items
>    0.00000 1.00000
>      1    0   9.000  # ctl type (dry bulb > flow), law (on/off setpoint 0.00
> direct action ON fraction 0.000.), starting @
>        2.  # No. of data items
>    0.00000 1.00000
>      1    0  21.000  # ctl type (dry bulb > flow), law (on/off setpoint 0.00
> direct action ON fraction 0.000.), starting @
>        2.  # No. of data items
>    0.00000 1.00000
>
> Christopher Heard
>
>
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