Key Intellectual Property
Advanced Cybernetics Group.
ACG was contracted by the US Air Force
and NIST to work on Supervised Autonomy for remote robots (telerobotics). See
When commercial radios became more affordable, ACG became Meshdynamics and
we began work on robust real-time connectivity for remote military machines.
In 2002, SPAWAR and DARPA funded a multi-year NRE contract for us to develop a
distributed, fault-tolerant device/protocol agnostic mesh control layer for use on military gear.
This includes Non-IP based stealth “sensor dust”. Our solution must support
real time, terse, Non-IP “Stealth Chirps” securely over IP backbones.
Taking cues from Nature, our work began with tree-based control networks then moved
to ants (mobility), pollen (broadcast storms for propagation) and finally birds (Chirp
and Chirp protocols). The
following condensed history reflects the progression and the extensions to
this protocol and device
agnostic distributed mesh control layer we refer to as
In 2002-2004, the figure above reflected previous generations of mesh
networking (single radio) versus our approach.
But there was confusion about
what "multi-radio" meant, and why Meshdynamics' patented tree-based
framework set us apart.
This performance analysis
was first published on our website. Soon others were also selling two radio backhaul
This mother patent refers to our novel tree-based mesh approach
High Performance Wireless Networks Using Distributed Control
. See also
The toll cost and hop cost taught in this patent was applied
to Pico nets. It was submitted to the IEEE 802.15.4
group on Ad hoc Mesh networking (as single radio meshed systems that tied
into a two-radio Wi-Fi backhaul).
Managing Performance of 802.15.4 Ad hoc Mesh networks.
The hybrid mesh (below, developed for military) included both multi-radio backhauls and
meshed edge devices managed by a common mesh control layer. This
distributed control and mediation layer was radio and protocol agnostic by
design. It manages both network topology and timing etc to ensure the
network is application aware. (See patents).
Transporting Terse messages over IP presented challenges since IP
backbones prefer largeackets and is best efforts based. No chirp
devices existed at the time, so we modeled our notions of
"Quasi-TDMA" using VOIP phones see:
Managing Jitter and Latency in Wireless LANs Real time Terse
messaging. See also
Next, the Modular
Mesh nodes needed mobility for our military and mining customers. See:
Mobility Extensions for Wireless Multiple Radio Mesh and
Disruption tolerance required fast switch over of tree-based
routing tables to the new parents of trees and also self-tuning:
Evolutionary Wireless Networks
Fast Topology reforming, look ahead simulator.
Other related documents to our
Benefits-of-MeshSuite-Licensing .An overview of MeshSuite.
For a YouTube version see tutorials.
Abstracted Network for the Industrial Internet
For the Chirp Family of Patents see