Running farms today is not just about crops, animals and machinery. Farmers often need to monitor fields, barns and storage areas that are far apart. Installing IP cameras is a smart way to do so, but what happens when you need to connect cameras that are a few kilometers away, like 10km?
Installing cameras at long distances is challenging for several reasons:
- Signal Loss: Ethernet cables only work well up to 100 meters. Beyond that, the signal becomes too weak.
- Latency: HD videos need good bandwidth. At vast distances, the link may slow, drop frames or lag.
- Hard to Run Cables: Running fiber optic cables is an option, but it’s expensive, time-consuming and often not practical in rural areas.
That’s where wireless transmission comes in. By using outdoor wireless bridges, you can send video data over long distances without trenching or laying kilometers of cables.
What Is a Wireless Bridge?
A wireless bridge is a “virtual” cable that connects two locations using radio waves. Imagine having one bridge near your house and another near your barn or field. They “talk” to each other through the air, sending the camera’s video back to your control room / NVR.
A clear line of sight is a must when using wireless bridges. Nothing big should block the path between two locations (e.g., hills, trees, fences, buildings). Over 10km, small obstacles or terrains can make a big difference. The camera and the wireless bridge/pair need power, so if there’s no grid power, you may need solar panels + batteries.
Benefits of Using a Wireless Bridge on Your Farm
- Long Distance: You can connect cameras that are 1km, 5km or even 15km away.
- No Need for Long Cables: Save money and avoid the hassle of digging trenches for fiber optic cables.
- High Speed: Support HD video streaming without lag or interruptions.
- Reliability: Keep your video signal stable even over long distances.
- Outdoor Ready: Built for outdoor use, it can survive heat, cold, rain, storms, etc.
802.11ax Outdoor Wireless Bridge
Empowered by the Wi-Fi 6 (802.3ax) technologies, this outdoor wireless bridge can transmit signals over a distance of up to 15 kilometers in a clear line of sight. With up to 900Mbps throughput, it easily connects devices such as security cameras, sensors, smart farm equipment, gateway/hub, and outbuilding networks. This 802.3ax outdoor wireless bridge can be used in both point-to-point (P2P) and point-to-multipoint (PTMP) applications to extend the reach of your farm’s Wi-Fi over kilometers, ideal for industrial parks, farms, construction sites, etc.
Key Features:
- 1x Gigabit Ethernet Port: Support data transfer rates of 10/100/1000Mbps
- 2×2 MU-MIMO and OFDMA: Handle multiple devices simultaneously without bottlenecks
- 19dBi Antenna:
- Advanced Management: VLAN, QoS, port forwarding and WPA3 security.
- Outdoor Enclosure: IP67 waterproof, rugged housing, 8kV surge protection.
- Easy Setup: Come with a Gigabit passive PoE injector for quick installation.
How to Install a Wireless Network over 10km?
Here is a simple step-by-step on how to set up a point-to-point wireless network for a farm.
Step 1: Choose the Locations
Mark where the bridges will be installed and make sure there’s a clear line of sight between the two spots. Use maps, walk the routes, or use drones to navigate the best possible path that is free of big obstacles.
Step 2: Gather the Equipment
- Router / network modem
- 24 Port L2+ PoE managed switch with 2 Gigabit SFP
- 802.11ax outdoor wireless bridges x2
- Gigabit passive PoE injectors x2
- Outdoor-rated Ethernet cables (Cat5e or Cat6)
- Strong poles or mounts
- Basic tools: Drill, wrenches, cable ties, waterproof tape, etc.
Step 3: Set Up the Wireless Bridges
You’ll need poles or towers tall enough to avoid obstacles (trees, fences). Mount the two bridge units on the poles, one at each end. Align the antennas so they point directly at each other (P2P).
Step 4: Connect the Bridges
Bridge A (Main Network Side)
- Plug the Gigabit passive PoE injector into mains power.
- Run an Ethernet cable from the router to the injector’s LAN port.
- Run another Ethernet cable from the injector’s PoE port to Bridge A.
Bridge B (Remote Side)
- Plug the second Gigabit passive PoE injector into mains power.
- Run an Ethernet cable from the injector’s PoE port to Bridge B.
- Run an Ethernet cable from the PoE injector’s LAN port to the 24-port L2+ PoE managed switch.
- Connect the switch to 100-240V AC power.
- Connect the PoE devices to the 24-port L2+ PoE managed switch with individual network cables. It will deliver power and data simultaneously to the PDs.
Step 5: Configure the Bridges
Once installed, we need to configure the networking settings.
- Connect your PC to the same network or directly to the bridge via Ethernet.
- Open your web browser, enter the IP address of the bridge (often something like 192.168.x.x) and log in with the default credentials.
- From the menu, click Wireless to access the configuration page.
- On Bridge A, set it as Access Point. On Bridge B, set it as Client. Enable P2P mode (or equivalent) so the two units talk directly.
- On Bridge A, enter an SSID name for the link. This is the name of the wireless “network” the two bridges use. On Bridge B, set it to connect to Bridge A using that SSID. Remember to use a shared key.
- Choose the channel width, enable WPA3 encryption, and set the transmit power (EIRP) and antenna gain accordingly.
- Save and apply the settings. Click Scan to search for networks. After a minute or so, the SSID should appear. Select it and click Join Network.
- Next, click Network from the menu. Assign static IPs to both bridges. If needed, enable VLAN settings and make adjustments accordingly.
- Save configuration changes. Reboot both devices so the settings take effect.
Step 6: Conduct a Speed Test
After installing and configuring the bridges, carry on a speed test to make sure the connection is fast and stable. Connect a PC to the bridge’s network and use an online speed test to measure the download the upload speeds between the two bridges. Realign the antennas if the signal is weak or fluctuating. Reduce channel interference by changing frequency or channel width.
Off-Grid Deployments for Outdoor Wireless LAN
One common challenge on farms is that they don’t always have electricity nearby. For example, you may want to install an IP camera near a water pump or a cattle field several kilometers away, but there’s no power outlet in sight.
Here are some simple solutions:
1. Solar Power Systems: A small solar panel can power both your IP camera and the wireless bridge. It’s highly recommended to add a battery to store energy so the system works at night and during cloudy weather. This setup is sustainable, reliable and low-maintenance for most rural areas.
2. Rechargeable Batteries: You can use a rechargeable battery, like deep-cycle batteries. These batteries can be charged periodically and replaced easily. It works well if you don’t want to run power cables over long distances. Just make sure the battery has a large enough capacity and is weatherproof to withstand outdoor conditions or you can put it in a waterproof junction box if convenient.
