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8 Advantages and Disadvantages of LoRa Module

Plate type: Use Cases
Time: 2022.11.14
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Lora, an acronym for "long range" in English, is a WAN transport technology that uses minimal energy and is widely deployed in IoT applications. With its extended broadcast range, Lora offers another critical benefit.

 

Lora is a technique for exchanging data. This method uses spread spectrum technology to allow wireless transmission across vast distances. Linear frequency modulation spread spectrum is the foundation of Lora, which not only preserves the low power consumption properties of signal spectrum modulation but also greatly extends the range over which information can be transmitted.

 

The signal-to-noise ratio and sensitivity of Lora IoT tech are exceptional. For IoT data transfer over long distances with minimal power requirements and low signal strength, Lora provides an excellent solution. In the age of IoT, Lora's unparalleled performance and versatility make it an indispensable tool.

 

The Advantages and disadvantages of LoRa Module are bellow.

 

Advantages of Lora Module

 

In general, the following are where the benefits of the LoRa module shine through:

 

1. Long transmission distance

 

Very high sensitivity is provided by the Lora communication module, which may go as low as -148dbm. Lora's communication technology has a link budget of up to 175dB. Due to its high sensitivity and low lora noise zone, its transmission range is significantly expanded.

 

In ideal conditions, the Lora network can transmit up to 15 kilometres. Lora draws 200na of electricity when idle and 10mA when actively receiving signals. Because Lora sleeps for so long, her battery lasts a lot longer.

 

The typical Lora battery has a service life of 5 years. Lora is preferable to other physical network technologies because its architecture prioritizes reliable signal transmission and long battery life.

 

2. Low power LoRa module

1. 

In the filed of IoT communication, some people ask: how to maintain the low-power consumption of wireless module while maintaining the transmission of wireless module? The hard problem was not deal with until the launch of lora module. Ultra-low power is the main reason of Lora module becoming popular among the market.

 

3.Powerful multi-channel information procession capacity

 

Multi-channel information can be processed in parallel and asynchronously using Lora technology, and the system's storage capacity can be increased.

 

To join an IP network, a node requires a bridge. A gateway is used to facilitate communication between the node and the network. Every day's worth of traffic between nodes is a good indicator of the Gateway's capacity and performance.

 

The daily data throughput for the Lora gateway is 5,000,000. Lora's ability to digest information quickly stems from its capabilities for multi-channel parallel processing. Due to the extensive information capacity of a Lora gateway and the long transmission distance of Lora technology, a single Lora gateway can handle the communication between nodes across a wide area.

 

This drastically reduces the number of gateways in the Lora IOT communication system, streamlines the installation of equipment for the system, and lowers the overall cost of running the Lora network.

 

4. Back-up testing for distance and placement

 

Instead of using the more conventional RSSI (received signal strength indication), Lora uses the air transmission time of a signal to determine distance, and it uses the difference in air transmission time between a multipoint (the Gateway) and a single point to select location (node). It has a 5m positional accuracy (assuming a range of 10km).

 

Lora uses the lag in signal transmission time to pinpoint the target's location. With Lora, a single node may send data to a network of receivers. If the signal is sent to more than one Gateway, its location can be determined by measuring how long it takes to arrive at each one. The placement is susceptible to environmental factors but can theoretically be accurate within 5 meters.

 

5. Superior secrecy and hiding ability

 

When the average power in the band is smaller than the bottom noise, regular communication can occur even when using Lora modulation, which conventional wireless devices cannot obtain and analyse.

 

6. Easy to deploy and construct

 

The nodes in the frequency bands don't require licenses, nor does the Spectrum for transmission. Lora modules are inexpensive, the module standard is clearly defined, setup and deployment are simple, and the overall cost is low.

 

7. Strong anti-interference ability

 

LoRa modules' LoRa modulation method is highly interference-resistant. In addition to recognizing and extracting data from background noise, the LoRa modulation mode also makes excellent use of spread spectrum modulation and forward error correcting technology. The more effective the wireless module's anti-interference capabilities, the steadier and more reliable they sent data will be.

 

8. Incredibly high-sensitivity levels

 

The LoRa module's modulation technology, known as LoRa, employs a novel spread spectrum operation. Spread spectrum modulation allows for improved sensitivity by 8-10dBm compared to conventional GFSK, FSK, and other modulation techniques when operating at the same data rate.

 

When the wireless module's sensitivity is strong, it may receive signals that are weaker in strength and vice versa; this is the principle that allows for greater transmission distances.

 

Disadvantages of LoRa module

There are lots of people who are familiar with the advantages of LoRa module, but don't know its disadvantages.

 

1. Low transmission rate

 

 

LoRa WAN network size is restricted by the duty cycle. Additionally, it works well for periodic and brief exchanges.

 

2. Slow data transfer rate

 

The LoRa module's extended transmission range is widely touted, yet few people understand how or why it works. Specifically, it reduces the data-transfer rate in the air to support ultra-long transmission distances.

 

Transmission distance in wireless communication decreases as module transmission rates increase. Because a weaker signal can be transmitted at a greater rate, and a more robust password can be sent at a lower rate. Using a LoRa module would be wrong if our project necessitates a fast data transfer rate.

 

3.Small payload

 

LoRa's data transmission payload is very small and only has one byte limit.

 

4.Not suitable for some applications

 

The latency and boundary jitter of LoRa is too high for use in real-time applications.

 

5. LoRa module price

 

If you're looking at wireless modules, the LoRa module will set you back more than the GFSK or FSK series RF modules.

 

Our company will suggest the LoRa module unless the budget for the project is highly constrained. Its performance across the board is unparalleled compared to other types of wireless modules.

 

6.Spectrum interference 

As LoRa grows and more LoRa devices and networks are deployed, there will be more opportunities for interference.

 

7. Need to build a new network

 

Constructing a new network is necessary for the LoRa deployment process, which brings up the seventh con.

 

8. Low bandwidth

 

The network size of LoRa WAN is limited due to the duty cycle.

Besides, it is best suited for periodic and short-term communications.

 

 Conclusion

 

Time has shown that the wireless industry is expanding, and the LoRa module is a part of that. In this article, we discuss some advantages and disadvatages of LoRa module. The above contains all information regarding the analysis that could be included.

 

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