ML417M1 Floodplain Harvesting LID
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FLOODPLAIN HARVESTING |
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In New South Wales,
the extraction of water from floodplains is
controlled by the Department of Industry and
Environment, through Water NSW. The whole process is
undergoing change to ensure the process is managed
in a sustainable fashion which is in turn fair for
all water users. Under the new rules, those who take
water from a floodplain under license, must measure
their take. NSW Water collect the data from all
storages and can then aggregate it up to gain a
picture for what is happening across a region or
catchment. |
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STORAGE VOLUME |
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Life is simple for farmers who have water
delivered to their door in a pressurised pipe. The
amount of water used can be measured accurately and
economically using any of a wide range of flow
meters.
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STORAGE METERS |
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The term Storage
Meter is used to describe what is normally
called a water level sensor. But in this application
it must be a sensor which can perform at the
accuracy required to give a reliable volume figure.
Water NSW has a process under which manufacturers
can submit their sensors for approval as storage
meters. The list of approved storage meters can be
viewed on the DPIE web site or on the sites of
Irrigation Australia Limited (IAL) and the
Australian Hydrographers Association (AHA). |
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Although there are a wide variety of level
sensors, those which can offer the accuracy required
for use in this application typically come from the
following families:
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LOCAL INTELLIGENCE DEVICES |
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On its own, the storage meter or sensor is
of no use - a bit like having a seat but no car.
What is needed is something which can power the
sensor, take the level measurement and store it. In
the past, this was the job of a data logger. But
today, these have been replaced by Remote Telemetry
Units or RTUs - which in the language of the DPIE
have become a Local Intelligence Device or LID. This
unit will have its own power supply to drive the
sensor, have electronics to read the sensor and
memory to store the readings taken over time. It
will then have some communications which is capable
of sending the data to a remote computer system for
analysis and display. The most common - and
most useful - method for data transmission is to
send the data over the mobile telephone network. The
computer system to which the level readings are
sent, is referred to as the Data Acquisition System
or DAS.
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ML417M1 LID |
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TOIP has developed
its ML417M1 solution as a flexible LID, which can be
used with all of the approved storage meters. This
approach allows you to sit down with your chosen
installer and talk through the process of choosing
the storage meter which will work best in your
environment. We will then pre-configure the LID to
suit that specific sensor.( Download brochure for ML417M1). |
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The ML417M1 is a rugged, reliable unit which takes advantage of our years of experience in the field of telemetry. Power comes from a high-tech lithium iron phosphate (LiFePO4 or LFP) battery. These are typically half the size of an equivalent sealed lead acid cell and, unlike Lithium Ion cells, are completely safe. The battery is charged via a 5W solar panel and is capable of running the unit for 2 months without charge. The heart of the unit is a YDOC ML417 telemetry unit. It’s fitted with enough non-volatile memory (it won’t be lost if the power fails) to hold decades of readings. The unit is fitted with a wide range of sensor interfaces, allowing it to work with any of the sensor technologies used on the storage meters. We build the unit in to a polycarbonate case which is in turn protected from the elements by an aluminium shield. The shield in turn provides a base for the “puck” antenna. Should your site be in a location with poor signal, we can opt for an external high gain or directional antenna
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Anyone who has been around for a while will remember the glory days of CDMA, when mobile phones had a range of over 60km. The replacement of CDMA with 3G was indeed a sad occasion for rural communities, as the range to which the service could operate was hard limited to 35km. Whilst the current 4G network is still limited to the same range as the 3G service, there has been one significant development in recent years with the release of the “narrow band internet of things services” which are also called NB IoT. These have been developed specifically for applications like floodplain harvesting and remote metering and have been fitted to every 4G Telstra tower. Whilst the normal 4G data service exists so you can use the internet, watch movies and listen to music while mobile, the NB IoT services are pitched at a different market: for moving small amounts of data for battery power monitoring systems. But while they are sent over the same 4G network as the voice and high speed data services, there is one significant difference: there is no range limit. So if you are on a hill 100km from the nearest tower and have signal, your NB IoT device will work. There are currently two competing NB IoT services: NB1, which offers slightly lower power consumption and longer range and Cat M1. We prefer Cat M1 as it allows us to create a fast, bi-directional communications session to the unit, which is a must for remote firmware and configuration updates. Whilst the service is currently limited to data communications, Cat M1 will be expanded to allow for emergency voice calls and later offered as an alternative for remote users for all voice calls. You can set the units to use Cat M1, NB1 or Cat M1 with NB1 fallback.
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OPTIONS |
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In addition to choice from all of the approved sensors, you can also nominate to purchase your ML417M1 LID with the following options: - Antenna: Puck (standard), High Gain Dipole, or Directional Yagi - Lightning Protection: optional module for use in areas with high lightning incidence - Local Display: this adds a 75mm x 50mm TFT display to the front of the LID and allows you to view the current water level at the push of a button. Press your finger on the level display and it will switch to a graphical view, which allows you to scroll back through the historic readings. The display can be added to the standard LID or can be used to make the LID into a Secondary Device, for use in sites with no mobile data network coverage. Historic readings will still be captured in the unit’s memory for access by NRAR, but you can use the display to read the current level at the start and end of a pumping event, so you can enter it in to the portal. |
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WHERE TO BUY |
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The ML417M1 LID is available through distributors who have their CSV certification: AgFlow Solutions ryan@agflowsolutions.com.au agflowsolutions.com.au PH 0400 092 171 Groundwater Imaging david@groundwaterimaging.com.au groundwaterimaging.com.au PH 02 6882 7465 Irritek service@irritek.com.au irritek.com.au PH 02 6752 6766 Jims Water Metering Solutions jimsheldrake@outlook.com PH 04 6081 8567 SierraTek jcondon@sierratek.com.au sierratek.com.au PH 04 2799 1484
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