Evidence map›Paper›PMID 37112265›Full record

ArticleSensors (Basel, Switzerland)2023

A Novel IoT-Enabled Wireless Sensor Grid for Spatial and Temporal Evaluation of Tracer Gas Dispersion.

Tsz-Wun Tsang, Kwok-Wai Mui, Ling-Tim Wong, Kwok-Yung Law, Ka-Wing Shek

Open access · goldAbstract read
In one paragraph

Article in Sensors (Basel, Switzerland), 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.

0numbers the graph read from it
0cells of the map it votes in
1citing papers in PubMed
1.3field-weighted citation impact, top 19% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

1 citing paper in PubMed, 5 citations in OpenAlex.

  1. Polypyrrole/Graphene/WOPolymers · 2026
    Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

5 authors at 1 institution in 1 country.

Tsz-Wun TsangDepartment of Building Environment and Energy Engineering, The Hong Kong Polytechnic University, Hong Kong, China.ORCID 0000-0001-9866-4531
Kwok-Wai MuiDepartment of Building Environment and Energy Engineering, The Hong Kong Polytechnic University, Hong Kong, China.
Ling-Tim WongDepartment of Building Environment and Energy Engineering, The Hong Kong Polytechnic University, Hong Kong, China.ORCID 0000-0001-8449-4973
Kwok-Yung LawDepartment of Mechanical Engineering, The Hong Kong Polytechnic University, Hong Kong, China.
Ka-Wing ShekDepartment of Building Environment and Energy Engineering, The Hong Kong Polytechnic University, Hong Kong, China.
Hong Kong Polytechnic University · HK

Funding

Research Grants Council of the Hong Kong Special Administrative Region PolyU P0033675/C5108-20G, HKPU P0033675/E-RB0P, PolyU 152088/17E P0005278/Q-59V
6 · The paper itself

Abstract

Current IoT applications in indoor air focus mainly on general monitoring. This study proposed a novel IoT application to evaluate airflow patterns and ventilation performance using tracer gas. The tracer gas is a surrogate for small-size particles and bioaerosols and is used in dispersion and ventilation studies. Prevalent commercial tracer-gas-measuring instruments, although highly accurate, are relatively expensive, have a long sampling cycle, and are limited in the number of sampling points. To enhance the spatial and temporal understanding of tracer gas dispersion under the influence of ventilation, a novel application of an IoT-enabled, wireless R134a sensing network using commercially available small sensors was proposed. The system has a detection range of 5-100 ppm and a sampling cycle of 10 s. Using Wi-Fi communication, the measurement data are transmitted to and stored in a cloud database for remote, real-time analysis. The novel system provides a quick response, detailed spatial and temporal profiles of the tracer gas level, and a comparable air change rate analysis. With multiple units deployed as a wireless sensing network, the system can be applied as an affordable alternative to traditional tracer gas systems to identify the dispersion pathway of the tracer gas and the general airflow direction.

Indexed as

airflowdispersionInternet of Things (IoT)tracer gas systemwireless sensing network (WSN)

Identifiers

PMID37112265
PMCPMC10145748
OpenAlexW4365454310

What Socratic holds

Textmetadata
LicenceCC BY
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the Socratic graph.