Open Access
ARTICLE
Yang Tang1,*, Weiwei Liu1, Chennan Zhang2, Yihao He1, Ning Ji1, Xinyao Chen1
Journal on Internet of Things, Vol.2, No.3, pp. 89-99, 2020, DOI:10.32604/jiot.2020.010107
Abstract Bike sharing emerging from college campus in Mainland China has
become a major part in the daily traveling of Chinese urban residents. It changes
the traveling behavior of urban residents, and simultaneously, raises higher
requirements on urban transportation facility construction and management.
However, the return of bike sharing to college campus causes more troubles to
schools. The fundamental cause is the closed peculiarity of campus traveling
comparing with city traveling, and also the discrepancy between college
campuses of different types. This paper investigates the traveling characteristics
of bike sharing in college campus in three different locations in Hangzhou City,
Zhejiang… More >
Open Access
ARTICLE
Yang Tang1,*, Weiwei Liu1, Yihao He1, Yuelin Zhang2, Fulong Zhang2
Journal on Internet of Things, Vol.2, No.3, pp. 101-107, 2020, DOI:10.32604/jiot.2020.010108
Abstract Public bicycle service has experienced 15 years of development in
Chinese cities, and mainland China is the world's largest public bicycle market.
Choosing to use public bicycles is becoming more and more a daily habit of
residents. Broadly speaking, public bicycles in Chinese cities include both public
bikes with service stations and shared bicycles without service stations. Based on
historical review and years of accumulated data, this paper reviews the
development of general public bicycles in Chinese cities in the past 15 years.
And the role of general public bicycles in China’s urban transportation system is
analyzed. Finally, from the… More >
Open Access
ARTICLE
Yanming Wang1,2,3, Kebin Jia1,2,3,*, Pengyu Liu1,2,3
Journal on Internet of Things, Vol.2, No.3, pp. 109-120, 2020, DOI:10.32604/jiot.2020.010138
Abstract With the global climate change, the high-altitude detection is more
and more important in the climate prediction, and the input-output characteristic
curve of the air pressure sensor is offset due to the interference of the tested
object and the environment under test, and the nonlinear error is generated.
Aiming at the difficulty of nonlinear correction of pressure sensor and the low
accuracy of correction results, depth neural network model was established based
on wavelet function, and Levenberg-Marquardt algorithm is used to update
network parameters to realize the nonlinear correction of pressure sensor. The
experimental results show that compared with the… More >
Open Access
ARTICLE
Xiaokan Wang*, Qiong Wang
Journal on Internet of Things, Vol.2, No.3, pp. 121-127, 2020, DOI:10.32604/jiot.2020.010200
Abstract In order to prevent drunk driving timely and protect personal safety, a
kind of vehicle-loaded alcohol concentration detector based on single chip
microcomputer control is designed. The detector usesAT89C51 microcontroller
as the core, makes use of the gas sensor, A/D converter to detect the alcohol
concentration of the breath of the driver, can set different thresholds according to
the space of the car model, automatically cut off the ignition circuit for the
exceeded threshold, and has the sound and light alarm function, which
fundamentally solve the problem of drunk driving. The instrument is compact in
size, stable in performance, convenient… More >
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