Linear Technology’s Dust Networks product group has premiered the SmartMesh LTC5800 (system-on-chip) and LTP5900 (module) families, said to be the industry’s lowest-power IEEE 802.15.4E compliant wireless sensor networking products.
SmartMesh ICs and modules enable tiny sensor ‘motes’ to be designed with a battery life of over 10 years, while companion network manager components enable the development of highly robust and secure wireless sensor networks (WSN).
SmartMesh networks use a triple-play of wireless mesh technologies – time diversity, frequency diversity and physical diversity – to assure reliability, resiliency, scalability, power source flexibility and ease of use.
At the core of this technology is an intelligent mesh network with advanced algorithms and power saving technologies that enable powerful features. These include deterministic power management and optimisation, auto-forming and self-healing mesh technology, zero collision low-power packet exchange and scalability to large, dense, deep networks.
Two communication standards are supported: the SmartMesh IP version is compliant with the 6LoWPAN standard, providing native IPv6 addressability to every node, while the new SmartMesh WirelessHART IEC62591-compliant products double the battery life over the prior release.
The LTC5800 system-on-chip (SoC) includes robust sensor networking software in a 72-pin 10 x 10 mm QFN package. It integrates all radio circuitry components, including an onboard power amplifier and an ARM Cortex M3 32-bit microprocessor, requiring only power, ground and an antenna for robust wireless connectivity.
The LTP5901/LTP5902 mote modules provide a surface-mount printed circuit board (PCB) that has undergone FCC, CE and IC modular radio certifications. The LTP5901 includes an onboard chip antenna, while the LTP5902 includes an MMCX antenna connector.
SmartMesh WirelessHART was purpose-built to serve the extraordinary low power and reliability requirements of the industrial process market. These attributes serve the needs of many diverse applications, and SmartMesh IP maintains comparable performance while adhering to the 6LoWPAN standard.
All SmartMesh networks are centrally managed, which provides comprehensive security and network management capabilities. The SmartMesh WirelessHART manager (LTP5903) can support up to 500 nodes per network, SmartMesh IP managers can support up to 100 nodes per network, and multiple instances of SmartMesh subnetworks can be deployed side-by-side to create very large networks.
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