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| author | Michal Hanus <hanus.michal@divelit.cz> | 2024-03-01 13:06:52 +0100 |
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| committer | Michal Hanus <hanus.michal@divelit.cz> | 2024-03-01 13:06:52 +0100 |
| commit | af0b7335fa1e790af85fd37b1b47152ebfcd394e (patch) | |
| tree | acac4faf09c9b4efee145c70ccb735f79a1373c9 /text/zaver.tex | |
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diff --git a/text/zaver.tex b/text/zaver.tex new file mode 100644 index 0000000..2fc9d02 --- /dev/null +++ b/text/zaver.tex @@ -0,0 +1,15 @@ +\chapter{Conclusions for the follow-up bachelor thesis} + +This semestral thesis provided a brief introduction to 4G/5G mobile networks for the Internet of Things (IoT) applications in the embedded electronic systems. Related communication protocols for 4G IoT networks (LPWAN NB-IoT and LTE-M) and 5G IoT networks (5G NR - URLLC) were described and a survey of two selected chipsets for 4G networks (Nordic Semiconductor nRF9160) and 5G networks (Quectel RM520N) and their development modules and kits was made. + +One of the development kits (nRF9160 DK) was then used for practical demonstration of an IoT device with LPWAN connectivity on an example of a combined burglary and fire alarm system with 4 sensors, transferring data to a remote cloud server via MQTT protocol. This demo allowed to establish a firmware development base for 4G IoT devices based on nRF9160 System-in-Package and get familiarized with the software development kit by Nordic Semiconductor with Zephyr RTOS support. + +Since there seem to be issues with a delivery of the appropriate 5G development kit by Quectel, being ordered for several months already, it would be advisable to focus the follow-up bachelor thesis only to 4G communication kits with nRF9160 System-in-Package and to further explore extensive firmware possibilities of this system for reliable and secure industrial IoT communication, specifically: + +\begin{itemize} + \item Firmware upgrades via FOTA (firmware over the air) + \item Implementation of ARM TrustZone technology for firmware protection against unauthorized changes + \item ARM CryptoCell solution for high-performance cryptography +\end{itemize} + +Experimental parameters of IoT communication (power consumption, lattency, reliability, effective range in complicated urban environment) shall also be verified, comparatively for NB-IoT and LTE-M protocols. |