The AyrMesh Bridge is just what it sounds like: a very simple-to-install, easy-to-use wireless bridge, consisting of two microwave radios – one connected to your network and the other connected to something you want attached to your network. It’s like a wireless Ethernet cable – up to 5 miles long!
The AyrMesh Bridge is useful for a wide variety of applications, including:
Connecting a Gateway AyrMesh Hub to your router when the Hub needs to be mounted more than 100 meters from the router – e.g. on top of a grain leg or hill, at a neighbor’s house, or in the middle of your farm when your Internet access is at one of the edges.
Jumping your AyrMesh network across neighboring fields – take off from one Hub at the edge of one field and connect a Hub at the edge of a distant field.
Just connecting a device or building on the farm to your network when you don’t need outdoor WiFi (you can use an IndoorHub connected to the Bridge for Indoor WiFi).
As the title suggests – this is just the beginning of the “It’s Back!” series from Ayrstone. Stay tuned!
Much has been written about the use of remote sensors in farming, with soil sensors leading the way. I think it’s worthwhile to understand how these sensors work and what options are available
We have highlighted some of these products (gThrive, Farmx, Edyn), and there are others coming up including Cropx and AgSmarts that we have not been able to evaluate in depth yet, although they are very promising and appear to be more focused on “mainstream” agriculture rather than specialty crops.
The soil sensor people understand that, to have soil sensors near the plants, you have to have sensors that are battery-powered (because you don’t get enough sun under the canopy to use solar). Because of that, most soil sensors use a low-power radio system; many use a “Personal-Area Network,” usually based on the 802.15.4 low-power, low-bandwidth meshing standard. These networks allow the sensors to use very little power so the batteries can last for months or even years. Additionally, the bandwidth (the amount of radio spectrum they use) is so low that they can transmit a very long distance with minimal power – frequently hundreds of yards – and the meshing capability means they can cover a very large area in a couple of hops. So these sensor networks actually ARE practical for gathering data from sensors, even in a very large field.
gThrive sensors and gLink gateway – Courtesy of gThrive
However, these systems, just like your home WiFi network, require a “gateway” device out in the field to connect them to the larger network (your AyrMesh network or the Internet). The Edyn sensor is an exception, because it connects directly to your WiFi network, but it is primarily aimed at gardeners, not commercial agriculture. Davis Instruments uses the weather station as the Gateway device, which makes it simple, but it does not use a meshing system, which limits how many sensors you can deploy. For almost all systems, sensors are not directly on your network or the Internet – the field network is a special network that only “talks” to the gateway device, and the gateway device “talks” to a normal Internet Protocol network – and that is usually a cellular modem connected to the Internet.
A Gateway device for your sensor network (possibly multiple gateway devices if you want sensors in multiple fields), and
Cellular subscriptions for each gateway device.
This is a lot of “commitment” before you even figure out how to effectively use the sensors and the data that comes from them – thousands of dollars just to get started plus a monthly or annual commitment to get the data. These systems are being marketed primarily to folks growing wine grapes in California or vegetables in Arizona – high-value crops with severe water costs and restrictions.
There are changes coming, of course, but there are also ways to get started now with less commitment.
First, if you’re growing a few acres of cut flowers, organic vegetables, or other high-value, high-intensity crops, the Edyn system may be very useful. Put an AyrMesh Hub near your field and deploy the Edyn sensors and valves controllers. You don’t have to save a lot of time and water to justify the expense.
Davis Weather Envoy, courtesy of Davis Instruments
Second, Davis Instruments has a nice system that they don’t advertise much. Their Wireless Weather Envoy datalogger can be connected to any Ethernet network (e.g. a Remote AyrMesh Hub, an AyrMesh Receiver, or an AyrMesh Bridge) using their Weatherlink IP module. It can then connect to their Soil Sensor Station, which has up to four soil moisture and soil temperature probes. It will also connect to a Vantage Vue wireless weather station, which is a very high-quality, low-cost, integrated weather instrument cluster that you can put up in any field in a matter of minutes. There’s a small annual fee for their cloud-based Weatherlink service, but it makes the system VERY easy to use.
If you need more soil sensors, they also build an Envoy 8x, which has the ability to simultaneously “talk” to up to 8 stations – weather stations or soil stations – within about 1000 yards.
Either the Wireless Weather Envoy or the Envoy 8x can be tucked into the cabinet of the Tycon remote power system we recommend for field Hubs, Receivers, or Bridge radios, and powered from the auxiliary power output on that system.
Third, if you do want to deploy many soil sensors using a system like gThrive or Farmx, you can connect the gateways in each field to an AyrMesh devvice to avoid exorbitant cellular fees for each gateway device. Their gateway devices have Ethernet ports, so they can be connected directly to an AyrMesh Remote Hub, Receiver, or Bridge unit, and you can skip the cellular bills.
We’ll have more on weather and soil sensors – if you have questions or comments, please leave them here (for public response) or contact us.
Today we are pleased to announce the availability of the AyrMesh Bridge.
The AyrMesh Bridge is a simple, wireless, point-to-point bridge. It serves a single purpose – to connect a distant device to your local network – a 5-mile long wireless Ethernet cable.
Wireless bridges have been around for a long time, and we had initially rejected the idea of adding a wireless bridge to the AyrMesh product line. If you have the Hubs and Receivers, why do you need a Bridge?
Testing in California
However, several customers have come to us in the last year with the same problem: their Gateway Hubs are on top of their homes or offices, but they would be better placed on top of a grain leg or another building with a better “view” of the surrounding fields.
In these cases, it would be possible to use one Hub near their routers to feed a Hub on the high location, but that would limit the ultimate range of the AyrMesh network (because we recommend only using up to three “hops” across Hubs).
The truth is that there are a lot of places the AyrMesh Bridge can be used:
Connecting an isolated outbuilding to your network (if you don’t want or need WiFi – if you want or need outdoor WiFi, of course, the Hub and a Receiver is a better solution)
Connecting a non-WiFi device that is more than 2 miles from a Hub or Receiver
Any other situation where you think “I wish I had an Ethernet cable that long.”
We are using a special radio signal for the AyrMesh Bridge to maximize the range. It is a narrow-band 5 GHz. signal, which is hidden and fully encrypted. Although it uses the 5 GHz WiFi band, it does not register with any WiFi equipment because it is a narrow-band signal. This minimizes interference with 5 GHz. WiFi signals, but does not completely eliminate it. If you are using 5 GHz WiFi equipment (802.11a, ac, or dual-band n), you’ll want to use different channels for your AyrMesh Bridge than your WiFi equipment.
Contents of the AyrMesh Bridge package
The AyrMesh Bridge comes complete with two radios (one for each end of the Bridge), power supplies, and 10′ Ethernet cables. Like all Ayrstone AyrMesh products, each radio is initialized by plugging it into your router until it shows up on AyrMesh.com, then it can be installed.
Like all AyrMesh devices, the Bridge radios are controlled by AyrMesh.com, as shown here. There is only one control for the Bridge – the 5 GHz. channel can be set to 149 (the default), 153, 157 (as shown here), 161, or 165. Note that these are distinct channels; unlike the 2.4 GHz. WiFi channels they do not overlap.
The AyrMesh Bridge is the simplest way to connect a device to your network at a considerable distance. Please contact us if you have any questions or comments about it.