Detail publikace

Low-cost remote distance and height sensing analog device for laboratory agriculture environments

ŠOTNER, R. POLÁK, L. JEŘÁBEK, J.

Originální název

Low-cost remote distance and height sensing analog device for laboratory agriculture environments

Typ

článek v časopise ve Web of Science, Jimp

Jazyk

angličtina

Originální abstrakt

This paper introduces a novel simple readout system for infrared distance measurement and transmission in closed environments, for instance small-area agriculture, employing transformation of distance on settable duty cycle variation. This simple analog system utilizes active devices fabricated in 0.35 mu m 3.3 V I3T25 ON Semiconductor complementary metal oxide semiconductor process. Analog system generates and transmits the information in form of the duty cycle of square wave signal with frequency of 3 kHz up to 46.6 kHz in full range (duty cycle approximately between 10% and 90%) or half range (above 50%) due to requirements of various types of receivers. There is no requirement for any special processing software. The transmitted waveform is received by a low-cost phototransistor in distance at least 30 mm (case when the transmitter and receiver are placed directly on both sides of dividing glass plate). The proposed concept was tested for distance measurement (up to 70 mm) by commercially available distance sensor connected to the communication system and can be utilized for different use cases (e.g. monitoring of growth of small plants or mushrooms). The measuring range (sensitivity and dynamical range) of the sensing system can be easily adjusted. The experiments indicate error between the transmitted and received value below 5%. The overall error of the system between the evaluated and real measured distance is below 10%. All the presented tests confirmed operationability of the proposed system.

Klíčová slova

CMOS; reflective distance sensors; generator; infrared transmitter; phototransistor; remote sensing; transducer

Autoři

ŠOTNER, R.; POLÁK, L.; JEŘÁBEK, J.

Vydáno

17. 3. 2022

Nakladatel

IOP Publishing Ltd

Místo

BRISTOL

ISSN

1361-6501

Periodikum

Measurement Science and Technology

Ročník

33

Číslo

6

Stát

Spojené království Velké Británie a Severního Irska

Strany od

1

Strany do

16

Strany počet

16

URL

https://iopscience.iop.org/article/10.1088/1361-6501/ac543c/meta

BibTex

@article{BUT177298,
  author="Roman {Šotner} and Ladislav {Polák} and Jan {Jeřábek}",
  title="Low-cost remote distance and height sensing analog device for laboratory agriculture environments",
  journal="Measurement Science and Technology",
  year="2022",
  volume="33",
  number="6",
  pages="1--16",
  doi="10.1088/1361-6501/ac543c",
  issn="1361-6501",
  url="https://iopscience.iop.org/article/10.1088/1361-6501/ac543c/meta"
}