A proposal of low-cost and low-power embedded wireless image sensor node for IoT applications

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Tresánchez Ribes, MarcelTresánchez Ribes, Marcel - ORCID ID
Pujol, Alain
Pallejà Cabrè, TomàsPallejà Cabrè, Tomàs - ORCID ID
Martínez Lacasa, DanielMartínez Lacasa, Daniel - ORCID ID
Clotet Bellmunt, EduardClotet Bellmunt, Eduard - ORCID ID
Palacín Roca, JordiPalacín Roca, Jordi - ORCID ID
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cc-by-nc-nd (c) Marcel Tresánchez et al., 2018
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This paper proposes the design of a low-cost, low-power and small size image acquisition device to be used in Internet of Things (IoT) applications which collects, processes and sends image data through a 2.4GHz Wi-Fi connection. The proposed processing unit is a low-cost high-performance STM32F7 microcontroller which is able to acquire and transfer images at full rate keeping the core idle to do image processing. The device is supported by a 1.3 Megapixel CMOS camera sensor, and a low consumption Wi-Fi module. This setup allows to create a very compact image sensor device with a built-in processing algorithm for a specific functionality in IoT. In this work, the device hardware architecture is described and discussed, and a comparison with alternative hardware solutions are presented.
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Procedia Computer Science, 2018, vol. 134, p. 99–106