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©2006. Renesas Technology Europe Ltd., All rights reserved. New Business & Segment Development Christos Aslanidis Marketing Specialist Renesas Technology Europe Renesas Ubiquitous Network Layer for Metering Applications (RUN-M) overview
©2006. Renesas Technology Europe Ltd., All rights reserved. 2 Building blocks for AMR infrastructures Highly robust modulation technology DCSK (Spread Spectrum) proven to be the most robust SW mechanisms for access and error handling PLC optimized DLL Reliable Network Control Intelligent Network Layer RUN-M Application Renesas provides all Building blocks (picture) for a typical AMM infrastructure Customers just focus on the “What” rather than on the “How” (to communicate) All building blocks extensively tested in the field State of the art technology, fitting to today’s requirements Short Time to market
©2006. Renesas Technology Europe Ltd., All rights reserved. 3 Building Blocks – Physical Layer DCSK modulation (Differential Code Shift Keying) High Performance Spread Spectrum Technology Most robust modulation available Powerful Error Correction Code and packet Detection Schemes Adaptive Packet detection -> solves False Locks issues Extremely robust transmission mode Clock recovery algorithm -> allows low accuracy crystal Extremely robust against all characteristic power line phenomena Spectral distortion Narrow band and Harmonic interferences (even if time varying) Pulses and spikes Impedance modulation Attenuation Highly robust modulation technology Proven as most robust technology available today
©2006. Renesas Technology Europe Ltd., All rights reserved. 4 Building Blocks – Data Link Layer Network address and node address Configuration for CENELEC A, B, ARIB, FCC CSMA/CA (Carrier Sense Multiple Access / Collision Avoidance) Channel prioritization Adaptive back off Acknowledgement (configurable) Re-transmissions (configurable) Broadcast Multi-hop broadcast (number of hops configurable) Frame fragmentation and re-assembly Packet filtering (configurable) Control of line quality (by PHY) Realtime handling by RTOS Cross network communication (CNC) Imposter detection SW mechanisms for access and error handling
©2006. Renesas Technology Europe Ltd., All rights reserved. 5 Building Blocks- Network Layer Tree based Network structure Intelligent Network Setup Join-On-Power-On : Join algorithm to ensure best possible connection, quality and lowest communication overhead Intelligent failure handling Self Healing Capabilities: If node loses parent it will rejoin Dynamic reconfiguration Network Configuration Recovery by EEPROM Intelligent repeating mechanisms Always ensuring best quality and low communication overhead Tree based routing (multistage routing and repeating of messages) Multiple message types Unicast : Message sent to a particular node Levelcast: Message send to all nodes at a particular level Broadcast: Message send to entire network Security features Stub mechanism for Network Layer encryption Detection and resolution of address conflicts Reliable Network Control
©2006. Renesas Technology Europe Ltd., All rights reserved. 6 Tree based Network structure Tree network structure Up to 7 levels tree depth Up to 255 nodes in each level Allows 1.785 network particpants Network is controlled by a main device (Concentrator) Concentrator is the only device located on level 0 N101 Concentrator Level 0 Level 1 N102N1255 Level 2 Level 7 N201N202 Level 3 N301
©2006. Renesas Technology Europe Ltd., All rights reserved. 7 Intelligent network setup ? New node sends join request to the network Gets reply from all nodes which can listen and which can accept more children Node analyses best offer securing Best quality Low traffic New node connects with address 0x203 to 0x103 Join request Node 0x0101 Node 0x0102 Node 0x0103 Node 0x0201 Node 0x0202 Node 0x0301 Node 0x0302 Node 0x0303 Node XXXX Node 0x0203 Concentrator 0x0001
©2006. Renesas Technology Europe Ltd., All rights reserved. 8 Node 0x0201 Self healing Each node in the network can check its parent availabiliy The nodes will than connect to an alternative node (router) in case the parent node is offline Node 0x0103 Node 0x0102 Node 0x0101 Node 0x0301 Node 0x0302 Node 0x0201 Node 0x0202 Concentrator 0x0001
©2006. Renesas Technology Europe Ltd., All rights reserved. 9 Routing downwards the network A path is always secured up and downwards the Network 0x0301 Node 0x0101 Node 0x0102 Node 0x0103 Node 0x0201 Node 0x0202 Node 0x0301 Node 0x0101 Node 0x0102 Node 0x0103 Node 0x0201 Node 0x0202 Node 0x0301 Concentrator 0x0001 Concentrator 0x0001
©2006. Renesas Technology Europe Ltd., All rights reserved. Renesas Technology Europe
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