On Friday, 5 May 2017 15:47:33 BST Ralph Corderoy wrote:
> Again looking at it back to front, the simulation could help determine
> the limits of the real-world that can be handled.
Since the Pi has a clock speed of 700 MHz +, depending on the model and
everything else is analogue, I think it's
Hi Terry,
> The biggest problem that we encountered was simulating the real world
> parameters in a realistic way.
Again looking at it back to front, the simulation could help determine
the limits of the real-world that can be handled.
> For example. Our river system is likely to have a
On Friday, 5 May 2017 13:55:03 BST James Blake wrote:
> When I've seen similar things done in industrial control networks you
> typically create a software sandbox similar to that described in order to
> define the programmable logic controller commands.
I have experience of using similar systems
On Friday, 5 May 2017 13:37:02 BST Ralph Corderoy wrote:
> > Thanks. I'll look into that, although I doubt that we'll be writing
> > software for some time. We need to get the system design nailed down
> > first and we can't do that until we've built and tested some sensors.
>
> That seems
When I've seen similar things done in industrial control networks you typically
create a software sandbox similar to that described in order to define the
programmable logic controller commands.
These typically take the form of UI controls that simulate:
Sensors (a check box for binary
Hi Terry,
> > If the control logic looks like being at all complex you'll probably
> > want to simulate the system all in software; your control logic
> > versus random events/you acting as the gods.
...
> Thanks. I'll look into that, although I doubt that we'll be writing
> software for some
On Thursday, 4 May 2017 17:26:41 BST Ralph Corderoy wrote:
> If the control logic looks like being at all complex you'll probably
> want to simulate the system all in software; your control logic versus
> random events/you acting as the gods. When I was writing Python, I used
> its TkInter GUI
Hi Terry,
> Part of the control system will include varying the amount of water
> pumped from the sump to the bog garden
...
> we need to know the level of water and the flow at various points
> around the system.
If the control logic looks like being at all complex you'll probably
want to
On Thursday, 4 May 2017 16:52:49 BST Ralph Corderoy wrote:
> Does the sump at the bottom of the river have the capacity to cope with
> no power for the pump that takes the water back uphill? Perhaps it
> overflows into a drain? If not, I guess the pump runs continously or
> the river flow is
Hi Terry,
> However, once the rainwater collection scheme is in place with five or
> more water butts to store the water, then the risk of floods will be
> increased after periods of heavy rainfall. In the end, the monitoring
> and control is more about that scenario than the present one.
Does
On Thursday, 4 May 2017 16:20:48 BST Patrick Wigmore wrote:
> I must admit, it surprises me that the river system is so
> sensitive to the weather conditions. I would have expected there
> to exist a constant pumping rate that would maintain the river
> between sensible high and low levels except
On Thursday, 4 May 2017, at 11:29:27 BST, Terry Coles wrote:
> Since the system will be running largely unattended 24/7, we
> want to be able to predict the onset of a flood or drought in
> the river. To do that we need to measure the actual depth so
> we can determine the rate of change.
I must
On Wednesday, 3 May 2017 18:15:34 BST Andrew wrote:
> In case you didn't already know, 'digital' versions of these are
> available quite easily and probably cheap, or free. They are used in
> most if not all washing machines and dish washers. The one I've looked
> at recently has a screw for
On 03/05/17 11:05, Terry Coles wrote:
As I mentioned at last night's meeting, we are currently considering a solution
based on
measuring the air pressure in a pipe that is connected to the bottom of the
butt.
In case you didn't already know, 'digital' versions of these are
available quite
On Monday, 1 May 2017 12:26:09 BST Terry Coles wrote:
> Has anyone ever done anything like this? Ideally, for level, an ultrasonic
> sensor with a good level of water resistance would be ideal (it won't be
> immersed, but it will be exposed to rain, mist etc). The capacitive sensor
> requires
On Wednesday, 3 May 2017 10:55:36 BST Ralph Corderoy wrote:
> > If you go to http://explorer.geowessex.com/ and enter the WMT's
> > postcode (BH21 1DY), the map will show the Model Town. Then go to the
> > Layers control, turn on Flooding; Floodzones 3
>
> There's a `Share' icon in the
Hi Terry,
> If you go to http://explorer.geowessex.com/ and enter the WMT's
> postcode (BH21 1DY), the map will show the Model Town. Then go to the
> Layers control, turn on Flooding; Floodzones 3
There's a `Share' icon in the right-hand side.
On Wednesday, 3 May 2017 08:08:37 BST PeterMerchant via dorset wrote:
> On 02/05/17 22:18, Tim wrote:
> > Could be interesting if the Rivers ever flooded Wimborne having to get
> > the model village replicate the situation, sorry a bit OT there, just
> > my warped humour coming out.
> I think
On Tuesday, 2 May 2017 21:45:46 BST Andrew wrote:
> It looks like the real rivers are being monitored in at least two places:
>
> https://www.riverlevels.uk/river-stour-oakley-wimborne
> https://www.riverlevels.uk/river-allen-colehill-walford-mill
>
> As a model town I would be tempted to find
On 02/05/17 22:18, Tim wrote:
On 02/05/17 21:45, Andrew wrote:
Hi Terry,
It looks like the real rivers are being monitored in at least two
places:
https://www.riverlevels.uk/river-stour-oakley-wimborne
https://www.riverlevels.uk/river-allen-colehill-walford-mill
As a model town I would be
On 02/05/17 21:45, Andrew wrote:
Hi Terry,
It looks like the real rivers are being monitored in at least two places:
https://www.riverlevels.uk/river-stour-oakley-wimborne
https://www.riverlevels.uk/river-allen-colehill-walford-mill
As a model town I would be tempted to find out how they are
On 02/05/17 21:45, Andrew wrote:
Hi Terry,
It looks like the real rivers are being monitored in at least two places:
https://www.riverlevels.uk/river-stour-oakley-wimborne
https://www.riverlevels.uk/river-allen-colehill-walford-mill
As a model town I would be tempted to find out how they are
Hi Terry,
It looks like the real rivers are being monitored in at least two places:
https://www.riverlevels.uk/river-stour-oakley-wimborne
https://www.riverlevels.uk/river-allen-colehill-walford-mill
As a model town I would be tempted to find out how they are doing that
level monitoring and
On 01/05/17 13:27, PeterMerchant via dorset wrote:
On 01/05/17 12:26, Terry Coles wrote:
Hi,
I appreciate that many on this list are software oriented, but do we
have any
people with experience of measuring fluid parameters?
The WMT has an ongoing Project to improve the sustainability of
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