TAMM CNM

TAMM CNM_1

TAMM CNM is one of the application layers of TAMM, the software solution developed by Terranova for the remote meter reading and control of the Gas, Electricity and Water meters towards a Smart Metering System. The CNM layer, specifically engineered for standalone modes (third carrier), exchanges data with field devices through interaction with Concentrators/Gateways of different brands models. Terranova actively collaborates with Concentrator/Gateway Manufacturers to develop technology solutions going beyond the standards for information exchange (NDA).


TAMM CNM allows for management of the following functions:


  • Acquisition of Meter Data and Network statistics through communication with concentrators
  • Forwarding commands received by the AMR component to meters via the master concentrator of each of them
  • Collection of meters’ asynchronous responses to AMR commands
  • Forwarding data received from the field to the AMR component
  • Network Management
  • Integration with AMR (SAC) through dedicated layers

TAMM CNM makes use of Network Statistics collected by concentrators and of an algorithm developed by Terranova which allows Network Autoconfiguration during each communication session between CNM and concentrators (different solutions – including proprietary software - are made available). TAMM CNM allows operators/the system to modify default routes and routing for communication between CNM and meters in order to manage:


  • Failures
  • Maintenances
  • Reachability Optimization

TAMM CNM integrates with proprietary mapping technologies. The application is provided of a Rendering Engine. In addition to the capability of integrating with the Company’s Geographic Information System (Network, Devices, Meters Referencing), the Cartographic Engine allows for network graphic representation and management through the following functions:


  • Communication Network Planning
  • Commissioning and Management
  • Alarms and Diagnostics

The system allows for real-time management of Diagnostic and Alarm Systems and also the subsequent analyses carried out with advanced descriptive and inferential statistical tools for data processing. The Diagnostic Functions allow for management of settings required to generate the following alarm types:


  • GSM signal strength
  • Non-communicating meters
  • Meters with communication problems such as frame export problems, timeout errors, meters not enrolled in the communication system

Each alarm is characterized by:


  • Severity Level: from technical alerts to schedulable interventions up to alerts marked as “severe” or “urgent”
  • Processing Status: Troubleshooting scheduled, Troubleshooting in progress, problem solved

Alarms can be managed using the Event Alarm Console or, in case the alarm has returned to normal by itself, it will be labeled as Self-Recovered. Through analysis of anomalies and previously collected data, the system is capable of supporting operators while verifying the need for interventions in the field (for example in case of missed communication for an extended period, and receipt of a diagnostic alert message stating that the battery is running out of charge.) In addition to event-triggered activities, the system also performs autonomous control tasks to assess network efficiency. These activities include:


  • Verifying meter’s and concentrator’s SLA
  • Security checks to identify attempted breaches on machines and DOS attacks
  • Alignment of meters’ clocks
  • Alignment of high-deviation meters’ clocks
  • Retrieval of central transmission frequency (169MHz) deviations, potentially affecting meters’ capability for reception
  • Periodic network’s key change
  • Management of the orphaned meters and activation of the scanning procedures for “device discovery”

The system allows for visualization of the internal hierarchical structure of a multipoint communication network and provides geo-location data for each concentrator and meter available within the focus area. The network monitoring screen allows display of the most important device information on a map view. The icon shows the device type, while different colors provide for a graphical representation of the status of hierarchical network connections: a given color identifies all devices connected to the same concentrator.


Information about device geo-location are available (installation address, coordinates) as well as other information related to specific features and functionalities of different component types. As for concentrators, the number of connected devices is made available, while meters can be identified by their reference concentrator, status and broadband connection quality. The map also enables visualization of the effective coverage area of each single concentrator.


Information about device geo-location are available (installation address, coordinates) as well as other information related to specific features and functionalities of different component types. As for concentrators, the number of connected devices is made available, while meters can be identified by their reference concentrator, status and broadband connection quality. The map also enables visualization of the effective coverage area of each single concentrator.


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