22 nd Nov 2012

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Introduction
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Deployment scenario and AMR frame work
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Pre requisites of a successful AMR
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Maven’s mesh network protocol
Electricity

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Maven systems is a product engineering company with an expertise in providing end to end solutions for automatic meter reading.
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AMR solutions are based on LPRF, PLC and GPRS technologies
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Hands on expertise on ZigBee, proprietary mesh, 6LoWPAN, DLMS,
Modbus, KNX, M-Bus protocols to name a few.
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Multiple pilots based on LPRF based technologies are in place based on Sub 1 GHz (865- 867 MHz) and 2.4 GHz technologies.
2.4 Ghz Sub 1 Ghz (865- 867 MHz)
ZigBee with SEP 2.0 / MSP ZigBee
Maven mesh network protocol Maven mesh network protocol
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Both technologies have their set of advantages / disadvantages and in the course we have benefited with substantial learning and observations about implementations of AMR.

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Robust and appropriate technology for last milestone connectivity
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Ease of data collection with user friendly customer touch points
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Ease of implementation and deployment
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Reliable system with low maintenance
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Lower implementation and operational costs
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Stable and self healing networks
Important
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Capability to capture accurate base line data which could be closely linked with generation capacity and distribution management
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The implementation should be scalable to a AMI, smart grid implementation with minimal changes and efforts.

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Adhoc on-demand routing
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Mesh advantages
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Data concentrator

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Network is silent until a connection/ data is needed
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Eliminates the efforts of identifying the locations for the coordinator, routers for data fetching.
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In case of ZigBee if the coordinator fails then data cannot be fetched till the time coordinator is restored and the network is created again.
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Installation process is simpler and connection setup delay is lower
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Data can be fetched on demand and / or at regular interval

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Cost effective and dynamic high bandwidth networks over a specific coverage area
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Self healing in case of failures of one of the meters in the path
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Auto discovery helps identify the newly introduced meters
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Reduces the efforts of meter commissioning
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PAN ID is used to create the specified coverage area

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Data concentrator can cache the history data up to 1000 meters along with time stamp as it has larger memory available.
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DC has a list of meters to be polled and the polling duration at which the data can be cached from meters.
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DC uploads the cached data when GPRS connection is available else would store the data and upload it offline when GPRS connectivity is available.
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Cached data on server can be used for billing, plotting the usage patterns and / or energy profiling.
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Hand held unit can also collect the cached data from the DC

Maven Systems Pvt. Ltd.
Tel. No.: 020 - 3240 3635 / 2539 6775
Mob: 9823882230
E-mail : inquiries@mavensystems.com
/ anurag.ambedkar@mavensystems.com
Website: www.mavensystems.com