Proceedings | |
Microcontroller-Based Seat Occupancy Detection and Classification | |
Cota-Ruiz, Juan1  Sifuentes, Ernesto2  González-Landaeta, Rafael3  Reverter, Ferran4  | |
[1] Author to whom correspondence should be addressed.;Department of Computer and Electrical Engineering, Universidad Autónoma de Ciudad Juárez (UACJ), Ciudad Juárez 32310, Mexico;Department of Electronic Engineering, Universitat Politècnica de Catalunya-BarcelonaTech, 08860 Castelldefels, Spain;Presented at the Eurosensors 2018 Conference, Graz, Austria, 9â12 September 2018. | |
关键词: autonomous sensor; force sensing resistor; microcontroller; resistive sensor; seat occupancy detection; sensor interface electronics; | |
DOI : 10.3390/proceedings2131040 | |
学科分类:社会科学、人文和艺术(综合) | |
来源: mdpi | |
【 摘 要 】
This paper presents a microcontroller-based measurement system to detect and confirm the presence of a subject in a chair. The system relies on a single Force Sensing Resistor (FSR), which may be arranged in the seat or backrest of the chair, that undergoes a sudden resistance change when a subject/object is seated/placed over the chair. In order to distinguish between a subject and an inanimate object, the system also monitors small-signal variations of the FSR resistance caused by respiration. These resistance variations are then directly measured by a low-cost general-purpose microcontroller without using either an analogue processing stage or an analogue-to-digital converter, thus resulting in a low-cost, low-power, compact design solution.
【 授权许可】
CC BY
【 预 览 】
Files | Size | Format | View |
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RO201910252140595ZK.pdf | 580KB | download |