Inicio  /  Aerospace  /  Vol: 11 Par: 1 (2024)  /  Artículo
ARTÍCULO
TITULO

Delay-D: Research on the Lifespan and Performance of Storage Devices in Unmanned Aerial Vehicles

Donghyun Kang    

Resumen

Despite the technological achievements of unmanned aerial vehicles (UAVs) growing in academia and industry, there is a lack of studies on the storage devices in UAVs. However, this is an important aspect because the storage devices in UAVs have a limited lifespan and performance and are rarely replaced due to a system-on-chip architecture. In this paper, we study how UAVs impact the lifespan and performance of the underlying storage device while capturing images during overflight. We also propose a new lifespan and performance-saving mechanism, called Delay-D, which is designed at the kernel level to efficiently utilize the features of NAND flash-based storage devices. To confirm the effectiveness of Delay-D, we implement a simulator that replays realistic write patterns on UAVs and evaluate quantitative experiments in two different experimental environments. In our evaluation, Delay-D demonstrates the dramatic extension possibility of the lifespan by reducing the number of extra writes inside the storage device and improving the overall performance by up to 2.1× on the commercial NVMe SSD.

 Artículos similares

       
 
Mohsin Iqbal, Saravanan Karuppanan, Veeradasan Perumal, Mark Ovinis and Adnan Rasul    
Exposure to load and offshore environment degrades the load-bearing capacity of tubular joints, necessitating reinforcement of these joints. Reinforcement is sometimes required for lifespan enhancement or qualification based on new requirements. Availabl... ver más

 
Xiaochun Zhang, Jianhan Hu and Shuyang Chen    
In the southeastern coastal regions of China, thick layers of marine soft soil are widely distributed, exhibiting characteristics such as high compressibility, high porosity, low strength, high sensitivity, and easy thixotropy, and these viscoelastic beh... ver más
Revista: Applied Sciences

 
Liliana Edith Rojas-Candelas, Mayra Díaz-Ramírez, Adolfo Armando Rayas-Amor, Rosy Gabriela Cruz-Monterrosa, Juan Vicente Méndez-Méndez, Ma. de la Paz Salgado-Cruz, Georgina Calderón-Domínguez, Alejandro de Jesús Cortés-Sánchez and Marcela González-Vázquez    
Nejayote and pericarp derived from nixtamalization are an environmental problem. Therefore, there is research interest in using these residues as new compostable and environmentally friendly materials. This work aimed to create, characterize (color, thic... ver más
Revista: Applied Sciences

 
Goldendeep Kaur, Kiran Jyoti, Nitin Mittal, Vikas Mittal and Rohit Salgotra    
Wireless Sensor Networks (WSNs) have a wonderful potential to interconnect with the physical world and collect data. Data estimation, long lifespan, deployment, routing, task scheduling, safety, and localization are the primary performance difficulties f... ver más
Revista: Algorithms

 
Riyaaz Uddien Shaik, Naresh Relangi and Kathiravan Thangavel    
Propellant gauging is crucial for a spacecraft approaching the end of its lifespan. Current gauging systems for satellites typically have an accuracy rate of a few months to a year at the end of their operational life. Therefore, it is essential to deter... ver más
Revista: Aerospace