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 The LoRa gateway is a radio module equipped with a LoRa concentrator receiving LoRa packets.

 The Lora gateway must transmit information from the Lora end node to the Internet. It transforms the signal into IP packets and sends it to the destination.

 It also receives packets from the Internet and converts them into signals for use by the Lora end nodes on their network.

 The typical Lora gateway transmission range depends on the type of antenna used. With an omnidirectional antenna, the signal can travel 20 kilometers, and with a directional antenna, the signal can travel 5 kilometers.

 How does the LoRa gateway connect to the LoRa network server?

 The LoRa gateway is connected to the LoRa web server via a serial port and contacted via push messages.

 The LoRa gateway is a transparent bridge that transforms radio packets into IP packets, and vice versa.

They use standard Internet connection types (such as Wi-Fi, wired Ethernet, or cellular phones) to connect directly to the LoRaWAN network server.

 Lora transmission category

 The Lora gateway typically has a transmission range of up to 15 km. However, this depends on several variables and the specification of the gateway. In environments with a good view and no interference from objects such as buildings or trees, their transmission distance may be more than 10 km.

 On the other hand, if there is any barrier between the transmitter and the receiver, they will be unable to reach anywhere near 10 km. Even without obstacles, heavy rain or heavy snow can interfere with the signal quality and shorten the signal range.

 In a conducted study, several models were range-tested to detect the transmission distance of the LoRa gateway. They took measurements in the suburbs, which had a variety of buildings. The signal lines runs through woodlands, single-family homes, and factories.

 Look for a low rate (BW=62.5kHz / BW=62.5kHz, FEC = 4 / 5, SF / F = 1024 chips / symbol, about 204bps) for a distance test in the open area. It proves the super long communication distance of LoRa wireless, although we only tested 4.6 km, which is a great application scenario for the construction of the Internet of Things.

In terms of water application, imagine that we can wirelessly control a mechanical device (such as the water pump switch or the water gate switch), what a cost saving and manpower solution. The micro-power wireless product is cheap and uses a free wireless band, and its low power consumption can be easily installed on a battery-powered handheld. On the contrary, GPRS technology hardware price is higher than LoRa module, so you need to buy a SIM card from China Mobile (or Unicom), which needs to support traffic fees every month. In addition, GPRS has high energy consumption, if installed on a portable handheld, you need an expensive large capacity lithium battery, but also often charging.

LoRa products will not replace Wi-Fi or other established protocols. Instead, its goal is to find something in the market that works for itself. Apply for the following scenarios:

1. No electricity;

2. It is difficult or impossible for the staff to enter;

3. Unable to pay for the expensive cellular network costs;

4. No immediate feedback is needed for the data effect;








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