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| Does the
MeshDynamics MD4000 support Mobile Mesh Networking?
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| Yes. MeshDynamics
4455 and 4325 mobility nodes have been demonstrated in
field tests both by US military and US allies. They
have validated that the MD4000 provides superior
connectivity even at high speeds. Applications include
video surveillance with cameras mounted on vehicles and
connecting with nodes along the road. Field tests also
include mobile vehicle to mobile video feeds over a multiple hop static node network. Both static and
mobile units have been in operation along the Arizona
Mexico border since 2005. Mobile units have also been
employed in armored vehicle convoy applications in Iraq. [More] |
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| Does
MeshDynamics support GPS ?
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| Yes. MD4000 mesh
node may be equipped with a GPS receiver. The GPS
information is integrated into the Network Management
System (NMS). The administrator downloads a map of
the geographical area of the mesh deployment into the
NMS. The mesh-node icons of the GPS-enabled
MD4000s will move in real-time on the downloaded map.
The actual locations of the mesh nodes will correspond
to locations on the downloaded map. See:
GPS Sensor and
Video on NMS tracking
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| Have MeshDynamics nodes been used in
explosive environments (e.g. underground coal mining)?
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| Yes, with enclosure
modifications. The components on MD4000 single
board computer runs on 3.3V. If 3.3V are supplied
directly to the MD4000 board (eliminating the DC-DC
converter) then the system becomes intrinsically safe.
No sparks can occur at that low voltage. Since 5-6 amps
are needed at this
low voltage to drive the mesh radios and processor, the mesh node enclosure
will use a different set of
connectors than the standard RJ45
connectors. Contact Technical Support
for
details. [Example]
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| Has MeshDynamics
products being deployed in harsh environments with
intense vibration or shock loading ?
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| Yes, with enclosure
modifications. The MD4000 enclosure is housed in a
protective harmonic damping container with aircraft
dampening foam. The units have been tested by the
military with shock loading. Contact Technical Support
for
details.
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| What are the
operating temperature range for MeshDynamics Nodes ?
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| All components within
the MeshDynamics MD4000 enclosure - processor, radios
etc - are rated to operate between - 20 to + 85 Celsius.
The weather proof system is sealed- there is no air flow into the box.
Heat exchange is by conduction and convention with the
box. The box is die cast aluminum, weather tight and NEMA
rated. Also see
Weather Proofing RJ45 Connectors.
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| Does
MeshDynamics mesh nodes support the 4.9GHz Public Safety
Band?
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| Yes.
Any of the MD4000's
radio cards (uplink, downlink, AP, scanner) may also use
the 4.9GHz licensed Public Safety band.
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Can MeshDynamics support non standard frequency
bands?
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Yes. Our mesh framework is frequency and radio card
agnostic. 2.4GHz, 5GHz, 4.9GHz radio cards are part of our
standard product offerings. 900 MHz is also supported, but
with some limitations. In general, if the radio
card of interest uses an Atheros based chipset, our Hardware Abstraction
Layer (HAL) supports it. If the radio is not Atheros based,
then NRE costs will be required.
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| Does MeshDynamics
support NMS branding/customization for OEM customers
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| Yes. OEM
customers may have their logos on a custom version of
the NMS. See NMS
Branding Guidelines for details.
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| Is prioritization for voice and video data traffic
provided?
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| Yes. The
Network Management System allows the implementation of
802.11e to wireless clients based on a number of
parameters such as IP address and VLAN. In addition,
Video packets may be sent in smaller packets
(fragmentation) to reduce the probably of occurrence of
CRC errors - smaller the packet, less probability of CRC
errors. Settings are available on the NMS User
Guide.
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Does MeshDynamics
support customer application integration?
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| Yes. The MeshDynamics
Network stack supports customer applications running
above the networking layer. Applications have been developed involving both static
and mobile nodes. For example application software on mesh nodes
polls sensors via the serial line interface. The
sensor data is massaged and then routed across the
mesh. The massaged data is displayed on a customized versions of the NMS that
supported both real time database updates and remote viewing
via web server interfaces.
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