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Automated Meter Reading (AMR)

 

Why AMR?Renesas OSI Layer for PLCRenesas Power Line Communication Evaluation Board
 
Renesas OSI Layer for PLC
 
 

Renesas M16C/6S PLC Physical Layer
 
Highly robust modulation technology
  • 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
  • Multiple transmission modes
    • Standard mode - 7.5 kbps (ARIB, FCC)
    • Robust Mode - 5kbps (ARIB, FCC) / 2.5kbps (CENELEC A or B)
    • Extreme robust mode - 1.25kbps (ARIB,FCC) / 0.625 kbps (CENELEC A or B)
  • Clock recovery algorithm -> allows low accuracy crystal
  • Configurable to support W/W regulations (CENELEC, ARIB, FCC)
    • 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

 
 

Renesas M16C/6S PLC Datalink Layer
 
SW mechanisms for access and error handling
  • Network address and node address
  • Configuration for CENELEC A, B, ARIB, FCC
  • CSMA/CD (Carrier Sense Multiple Access / Collision Detection)
  • 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
link

D2DL Overview
D2DL Programming
 
 

Renesas M16C/6S PLC Network Layer (RUN-M)
 
Reliable Network Control
  • 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
  • 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
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Single Phase Solution

  
R8C/2G, 2H Reference Solution (Low End)
  
H8/38024 Solution (Low End)
  
H8/38086R Solution (High End)  
 
Three Phase Solution
  
M16C/62P Energy Meter Block Diagram (High End)
  

 
Automated Meter Reading (AMR)
  
Why AMR?
  
Renesas OSI Layer for PLC
Renesas Power Line Communication Evaluation Board  

 
Other Tools
  
Gang Calibrator for Single Phase Meter