Results 1 to 10 of about 200,483 (262)

“Speed”: A Dataset for Human Speed Estimation [PDF]

open access: yesSensors
Over the years, researchers have developed several speed estimation techniques using wearable inertial measurement units (IMUs). In this paper, we introduce a medium-scale dataset, containing measurements of walking/running at speeds ranging from 4.0 km ...
Zainab R. Bachir, Usman Tariq
doaj   +3 more sources

Validation of Walking Speed Estimation from Trunk Mounted Accelerometers for a Range of Walking Speeds [PDF]

open access: yesSensors, 2021
Walking speed is a strong indicator of the health status of older people and patients. Using algorithms, the walking speed can be estimated from wearable accelerometers, which enables minimally obtrusive (longitudinal) monitoring.
Sietse M. Rispens   +5 more
doaj   +2 more sources

Estimation of the Vehicle Speed Using Cross-Correlation Algorithms and MEMS Wireless Sensors

open access: yesSensors, 2021
Traffic information is critical for pavement design, management, and health monitoring. Numerous in-pavement sensors have been developed and installed to collect the traffic volume and loading amplitude.
Cheng Zhang   +3 more
doaj   +1 more source

Monitoring Vehicle Pollution and Fuel Consumption Based on AI Camera System and Gas Emission Estimator Model

open access: yesSensors, 2022
Road traffic is responsible for the majority of air pollutant emissions in the cities, often presenting high concentrations that exceed the limits set by the EU. This poses a serious threat to human health.
Manuel Rodriguez Valido   +2 more
doaj   +1 more source

Implementation of sensorless speed control of synchronous reluctance motor using extended Kalman filter

open access: yesEngineering Science and Technology, an International Journal, 2022
This paper presents an extended Kalman filter (EKF) based sensorless speed control which was performed for controlling a synchronous reluctance motor (SynRM).
Gullu Boztas, Omur Aydogmus
doaj   +1 more source

Estimating Percentile Speeds from Maximum Operating Speed Frontier [PDF]

open access: yesTransportation Research Record: Journal of the Transportation Research Board, 2014
Most operating speed studies have focused on modeling a specific percentile speed, most notably the 85th, as a function of the road geometrics. This method has resulted in some drawbacks, such as the loss of information due to speed data aggregation, the inability to capture speed dispersion, and few references about the effects of the driving culture
António Lobo   +2 more
openaire   +2 more sources

Estimating Walking Speed in the Wild [PDF]

open access: yesFrontiers in Sports and Active Living, 2020
An individual's physical activity substantially impacts the potential for prevention and recovery from diverse health issues, including cardiovascular diseases. Precise quantification of a patient's level of day-to-day physical activity, which can be characterized by the type, intensity, and duration of movement, is crucial for clinicians. Walking is a
Loubna Baroudi   +5 more
openaire   +3 more sources

UKF-Based Parameter Estimation and Identification for Permanent Magnet Synchronous Motor

open access: yesFrontiers in Energy Research, 2022
The accuracy of rotor position estimation determines the performance of the sensorless control system of a permanent magnet synchronous motor. In order to realize the accurate control of rotor position and speed, it is necessary to identify the motor ...
Zhiwei Wang   +9 more
doaj   +1 more source

Adaptive Gain Tuning Rule for Nonlinear Sliding-Mode Speed Control of Encoderless Three-Phase Permanent Magnet Assisted Synchronous Motor

open access: yesCES Transactions on Electrical Machines and Systems, 2023
In this paper, an adaptive gain tuning rule is designed for the nonlinear sliding mode speed control (NSMSC) in order to enhance the dynamic performance and the robustness of the permanent magnet assisted synchronous reluctance motor (PMa-SynRM) with ...
Ghada A. Abdel Aziz, Rehan Ali Khan
doaj   +1 more source

Induction Motors Speed Estimation by Rotor Slot Harmonics Frequency Using Zoom Improved Chirp-Z Transform Algorithm

open access: yesEnergies, 2022
This paper analyzes the digital signal processing techniques and estimates induction motor (IM) rotational speed operating in stationary or non-stationary conditions.
Mahamadou Negue Diarra   +5 more
doaj   +1 more source

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