Silvanet Mesh Gateway (Gen 3)
Mesh Gateways allows for large-scale deployments of Silvanet devices using a patent-pending multi-hop Silvanet Mesh Network.
Last updated
Mesh Gateways allows for large-scale deployments of Silvanet devices using a patent-pending multi-hop Silvanet Mesh Network.
Last updated
© 2024, Dryad Networks GmbH, Eisenbahnstr. 37, 16225 Eberswalde, Germany
Dryad's 3rd Generation proprietary Silvanet Mesh Gateway acts as a range extender using the patent-pending multi-hop LoRaWAN Mesh Network. It now incorporates NFC for offline device registration and local debugging.
Gen 3 Mesh Gateways are available in two models:
SMG-3 (LoRaWAN only): This model provides LoRaWAN connectivity but does not include Satellite connectivity.
SMG-3S (LoRaWAN and Satellite): In addition to LoRaWAN connectivity, this model provides Satellite connectivity. Available in North America and Europe only.
The Silvanet Mesh Gateway provides connectivity for large-scale deployments of Silvanet Wildfire Sensors. It allows the Silvanet Mesh Network to overcome signal interference from terrain such as hills, valleys, rock outcroppings, cliff faces, mountainous areas or any topology that prevents reliable communication.
It can be deployed for wide-area deployments in forests or for linear deployments such as railroads, wooden bridges, power lines, hiking trails and more.
Ratio of Wildfire Sensors to Mesh Gateways
Each Mesh Gateway supports up to 100 sensors. For more information, see Gateway ratios.
Mesh Gateway range
The recommended range between Mesh Gateways is 2.0 to 3.0 km. The recommended range between Border Gateways and Mesh Gateways is also 2.0 to 3.0 km. For more information, see Gateway ranges.
Gen 3 Silvanet Mesh Gateways have an updated design for ease of installation, improved energy capacity and NFC registration.
Mounting Bracket: A separate endurable mounting bracket is first attached to a tree or pole, after which the Mesh Gateway is clipped on to the bracket. This allows for an improved mounting experience as the light bracket can easily be carried up the ladder and attached to the tree or pole (min 3 m above forest floor). A lock can then be used to secure the Mesh Gateway to the attached mounting bracket.
Built-in antennas: LoRaWAN (SMG-3 and SMG-S3), Satellite (SMG-3S only) antennas are now integrated. Users no longer need to attach antennas after mounting. It also prevents damage or theft of the antenna.
NFC: Integrates NFC for registering and connectivity testing (using the Silvanet Deployment app) and for offline local debugging.
Redesigned casing: New endurable casing design (weather/UV proof) provides IP67 Ingress protection.
Improved energy capacity: 60% more power capacity compared to Gen 2 Mesh Gateway for a longer and more reliable power supply.
EchoStar satellite connectivity: Ensures off-grid operations in remote areas. Provides data transfer to the Silvanet Cloud if the Mesh Gateway loses connection to the Silvanet Mesh Network (such as vandalism/theft of devices). Available in North America and Europe only.
Ease of use
Quickly mounted on trees or poles through the the use of mounting brackets.
Maintenance-free for 10 to 15 years.
Covers a radius of 2 km to 10 km depending on local topology and positioning.
No need for 4G/LTE or wired connections.
FUOTA support for remote firmware updates.
Supports paths to multiple Mesh Gateways in the Silvanet Mesh Network.
Mesh network connectivity
LoRa connectivity to support Silvanet Wildfire Sensor
LoRaWAN enables communication with other Silvanet Mesh Gateways and Border Gateways.
Supports any LoRaWAN-compliant sensors and other third-party devices.
Regulatory compliance
USA (FCC, PTCRB)
Canada (IC)
Europe (CE RED)
CB Scheme
1 Mesh Gateway
1 mounting brackets
2 C-Clamps + bolts
4 tree nails
The dimensions of the Silvanet Border Gateway are (LxWxD) 82 cm x 34 cm x 6 cm (16 cm with mounting bracket) and weighs 6.8 kg (without Mounting Bracket).
The Silvanet Wildfire Sensor includes a 50 cm x 25 cm solar cell on its front housing. It continuously generates energy during the daytime and recharges the device with sufficient power for after sunset. It then begins to discharge until sunrise. After sunrise, it begins to recharge to 100% within about an hour.
The Silvanet Mesh Sensor uses a set of supercapacitors to store energy for use by the radio and other components. It stores the energy for day-to-day tasks and has a reasonable amount of reserve power to operate the radio module during the night.
As supercapacitors have an expected lifespan of 10 years or more, the Mesh Gateways are essentially maintenance free. This allows for an expected lifespan between 10 and 15 years.
Supercapacitors have a high capacity but a small maximum voltage of 2.7 V so a series of capacitors are loaded to 4 V. Capacitors are fully charged to 5.2 V.
Why use supercapacitors?
Power supply is stored in supercapacitors rather than rechargeable batteries as they can potentially ignite. Consequently, using batteries would defeat the purpose of a wildfire detection system.
The Mesh Gateway provides NFC to allow users to configure the Mesh Gateway in locations without mobile connectivity (when offline). It also allows for local debugging.
With the Silvanet Deployment app running on a Smartphone, a deployer holds their Smartphone near the embossed NFC symbol on the Mesh Gateway to register the device. Afterwards the Gateway can be mounted on a tree or pole.
The Mesh Gateway supports FUOTA (Firmware Update Over The Air). Using FUOTA, the Mesh Gateway can successfully and securely receive firmware updates even if its power supply is interrupted.
See also
For more information, see Firmware updates (FUOTA).
Deploying Mesh Gateways
For more information about deploying Mesh Gateways, see Planning guidelines and Deploy Mesh Gateways.
