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Title:
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An inexpensive wireless smart camera system for IoT applications based on an ARM Cortex-M7 microcontroller
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Author:
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Tresánchez Ribes, Marcel; Pujol, A.; Pallejà Cabrè, Tomàs; Martínez, D.; Clotet Bellmunt, Eduard; Palacín Roca, Jordi
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Notes:
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This paper presents a new proposal of a low-cost and low-power wireless smart camera device, designed to be used as an
inexpensive smart image acquisition edge node for Internet of Things (IoT). Taking the advantages of the ARM CortexM7 microcontrollers, a high-performance STM32F7 microcontroller is used as a main digital signal processor (DSP) to
acquire and transfer images at full rate, keeping the core idle to do real-time image processing. In order to design a very
compact, low-cost and low-power wireless image sensor node, the DSP is supported by an embedded 1.3 Mega Pixel
CMOS camera sensor and a low consumption 2.4GHz Wi-Fi module. This setup allows a custom build-in image
processing algorithm for specific IoT sensing applications or a simply setup as low-cost streaming Motion JPEG (MJPEG)
wireless camera node. In this work, both configurations have been tested and analyzed. Results show that the device can
acquire and process images simultaneously at a full rate (30 fps) and the MJPEG transmission reaches 7.23 fps with a
QVGA resolution. |
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Subject(s):
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-IoT node
-Image sensor
-Video streaming |
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Rights:
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(c) International Association for Sharing Knowledge and Sustainability, 2019
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Document type:
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Article
Article - Published version |
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Published by:
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International Association for Sharing Knowledge and Sustainability
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