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IoT comes to us!

There is a large selection of interfaces for wireless data transmission. However, all these technologies are currently in the test phase. In this article we will focus on NB-IOT, LTE cat. M1, Loru and SigFox.


NB-IoT

NarrowBand IoT (NB-IoT) is a low-power technology built on 4G LTE technology to enable a wide range of devices and services to be connected. Technology also excels at low cost and long battery life. It was defined by the 3GPP Release 13 standard.

The baud rate is 250kbps.

Especially suitable for stationary use, due to the need to re-register when changing the transmitter, does not have the Hand-Over feature.

Advantages: low consumption, roaming data transfer without extra charges, fast networking, licensed bands

Disadvantages: Hand-Over is not supported, lower baud rate,

Manufacturers: Quectel (This is not a native NB-IOT only downgrade from LTE Cat 1)


LTE cat. M1

LTE cat. M1 is also technology based on 4G technology, which makes it applicable to the current mobile operator infrastructure. It was defined by the 3GPP Release 13 standard as well as the NB IOT.

Compared to NB, it has a slightly higher power consumption, but the life of the battery per charge may be several months up to one year. Support Voice over VoLTE.

The baud rate is 1Mbps.

It is also suitable for connecting mobile devices, as it handles the Hand-Over feature. Fast scrolling between different transmitters, similar to a mobile phone.

Advantages: Low consumption, roaming data transfer without extra charges, fast networking, licensed bands, VoLTE, Hand-Over feature.

Disadvantages: higher consumption than NB IOT, networking still predominantly in the US,

Manufacturers: U-Blox (this is not a native CAT M1 only downgrade from LTE Cat 1)


Lora

Lora is one of the wireless solutions used, which is primarily used to transmit a small amount of data even over long distances within the established network. Its advantage is a low power consumption. It also allows two-way communication. In Europe, this technology is used at 868MHz.

Appropriate technology mainly for local networks of non-critical importance.

Advantages: low consumption, great reach, the ability to build a custom network

Disadvantages: low bandwidth, unlicensed band, interference if multiple networks in one location, interferes with SigFox technology

Manufacturers: IMST, HopeRF


SigFox

Sigfox is a technology working at the same frequency as Lora. This technology transfer data on a frequency of 868MHz at 100bps. The signal is sent from the device, all stations within range are recorded and further processed the signal. The request from the station is then sent to the server to be further processed. Authentication is done using a unique private key. This is only one-way communication, there is no verification, which is mostly solved by the multiple sending of the request. This technology is suitable for transmitting less data. Devices on this network can theoretically communicate over long distances, but practically they are only reliable on km or so and use in buildings is almost impossible for now. At present, coverage is sufficient. Coding is done on the application layer using AES128 and 16-bit authentication. The power of this technology is in low consumption. Especially suitable for non-critical tasks.

Advantages: low consumption, long range, high coverage, roaming data transfer free of charge

Disadvantages: carrier data charging, unidirectional communication (downlink very limited), unlicensed band, unsuitable for mobile devices, interferes with Lora technology

Manufacturer: Radiocrafts





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