Domestic lora module manufacturers: What are the characteristics of domestic lora technology?

Release time: 2022-09-05

Domestic lora module manufacturers say that the LoRa network is mainly composed of terminals (built-in LoRa modules), gateways (or base stations), network servers and application servers. Its network architecture is a typical star topology. In this network architecture, the LoRa gateway is a transparent transmission relay that connects the terminal device and the back-end central server. Terminals communicate with one or more gateways using a single hop. All nodes in the gateway communicate bidirectionally with the gateway.

The terminal nodes of domestic LoRa may be various devices, such as water meters, gas meters, smoke alarms, pet trackers, etc. These nodes first connect to the LoRa gateway through LoRa wireless communication, and then connect to the network server through 3G network or Ethernet. The gateway communicates with the web server through the TCP/IP protocol.

Domestic lora module manufacturers say that the terminal nodes of LoRa may be various devices, such as water meters, gas meters, smoke alarms, pet trackers, etc. These nodes first connect to the LoRa gateway through LoRa wireless communication, and then connect to the network server through 3G network or Ethernet. The gateway communicates with the web server through the TCP/IP protocol.

The domestic LoRa network divides the terminal equipment into three categories: A/B/C:

Class A: Two-way communication terminal equipment. This terminal device allows two-way communication, and each terminal device's uplink transmission is accompanied by two downlink receive windows. The transmission time slot of the terminal is based on its own communication requirements, and its fine-tuning is based on the ALOHA protocol.

Class B: Two-way communication terminal equipment with preset receive time slots. The domestic lora module manufacturer said that this terminal device will open the redundant receiving window within a preset time. In order to achieve this goal, the terminal device will receive the beacon from the gateway at the same time, and synchronize the time of the base station and the module through the beacon.

Class C: Two-way communication terminal equipment, with a large receiving window. This terminal device keeps the receive window open and only closes it when transmitting.

Domestic lora module manufacturers say that LoRaWAN-based networks can provide secure two-way communication, long data transmission distances, and cover urban areas with less network infrastructure. Domestic LoRa will be widely used in smart agriculture, smart buildings, smart logistics and other application scenarios.

For agriculture, low-power, low-cost sensors are urgently needed. The application of temperature, humidity, carbon dioxide, salinity and other sensors is of great significance to improve agricultural output and reduce water consumption. However, these data indicators will not change significantly in a short period of time, and the amount of data is small, and the real-time requirements are not high, so LoRa is undoubtedly a good choice.

The domestic lora module manufacturer stated that it will transform the building, add sensors such as temperature and humidity, safety, harmful gas, water flow monitoring, and regularly upload monitoring information, which is convenient for managers to supervise and more convenient for users to use. Generally speaking, the communication between these sensors does not need to be very frequent, and it does not need to guarantee a particularly good quality of service, and a portable home gateway can meet the demand, so LoRa is a more suitable choice in this scenario.

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