Harmonic distortion is a serious issue for both industrial customers and power suppliers. Therefore, its reduction is a basic requirement for any power system, to improve stability while complying with acceptable harm...
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Gherkin cultivation, while a significant contributor to the agricultural sector, remained underutilized in Sri Lanka despite high international demand, particularly for pickles. Gherkin farmers faced many challenges f...
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The broad utilization of interconnectivity and interoperability of processing frameworks have turned into an irreplaceable need to improve our everyday activities. All the while, it opens a way to exploitable weakness...
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With the increasing reliance on air conditioning systems for indoor comfort and climate control, innovative approaches are imperative to enhance efficiency, reduce costs, and extend equipment lifespan. This study pres...
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In this paper, TMS320F2812 type DSP is utilized as the core of system control chip, according to the principle of variable voltage variable frequency (VVVF) and sine wave pulse width modulation technology(SPWM), thus ...
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This study explores the application of infrared thermography for non-contact monitoring of human respiratory rate. Using a passive thermography approach, the study presents a non-invasive method utilizing thermal imag...
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Massive MIMO (multiple input multiple output) technology plays a key role in many 5G networks today, boosting throughput and capacity by enabling user-specific beamforming of the data channel. For applications that re...
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This paper presents a method for rotor flux estimation with direct applications in the control of induction motors (IM). We propose a new structure for the sliding mode observer (SMO) such that pure integral calculati...
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To control the lower-limb exoskeleton robot effectively, it is essential to accurately recognize user status and environmental conditions. Previous studies have typically addressed these recognition challenges through...
ISBN:
(纸本)9798350336702
To control the lower-limb exoskeleton robot effectively, it is essential to accurately recognize user status and environmental conditions. Previous studies have typically addressed these recognition challenges through independent models for each task, resulting in an inefficient model development process. In this study, we propose a Multitask learning approach that can address multiple recognition challenges simultaneously. This approach can enhance data efficiency by enabling knowledge sharing between each recognition model. We demonstrate the effectiveness of this approach using Gait phase recognition (GPR) and Terrain classification (TC) as examples, the most conventional recognition tasks in lower-limb exoskeleton robots. We first created a high-performing GPR model that achieved a Root mean square error (RMSE) value of 2.345 +/- 0.08 and then utilized its knowledge-sharing backbone feature network to learn a TC model with an extremely limited dataset. Using a limited dataset for the TC model allows us to validate the data efficiency of our proposed Multitask learning approach. We compared the accuracy of the proposed TC model against other TC baseline models. The proposed model achieved 99.5 +/- 0.044% accuracy with a limited dataset, outperforming other baseline models, demonstrating its effectiveness in terms of data efficiency. Future research will focus on extending the Multitask learning framework to encompass additional recognition tasks.
This paper presents a digital twin (DT)-based fault recovery method for power electronic converter systems. The method employs a prediction accelerator with a DT model for each subsystem of the converter system and fe...
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