A novel framework for UAV returning based on FPGA

He, Qunfang; Chen, Wenjie; Zou, Danping; Chai, Zhilei

doi:10.1007/s11227-020-03434-4

Cited by 10 publications

(7 citation statements)

References 26 publications

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“…e acquisition and calculation method of its distribution occurrence is mainly obtained by using the spatial analytic geometry knowledge on the basis of obtaining the coordinates of more than three points on the interface. e calculation process can be realized by programming [16].…”

Section: Collection Methods Of Geological Interface Informationmentioning

confidence: 99%

Application of Multimedia Tilt Photogrammetry Technology Based on Unmanned Aerial Vehicle in Geological Survey

2022

Mathematical Problems in Engineering

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In order to better investigate the geological research, a tilt photogrammetry technology based on the unmanned aerial vehicle is proposed. This paper makes use of UAV tilt photogrammetry technology to make geological macroscopic analysis and establishes 3d color digital ground model, forming a set of technical methods for geological survey assisted by UAV. The experimental results show that the coordinate calculation is significantly improved, and the root mean square error of plane coordinates reaches 0.2 m, which can meet the requirements of later cartography and spatial measurement. The feasibility and efficiency of carrying out a geological survey based on the unmanned aerial vehicle are verified by the practical application in landslide hazard geological survey. It is proved that DEM and DOM data obtained based on oblique photogrammetry data can form various thematic maps by superimposing them with vector GIS data, which will provide a basic data model for subsequent engineering investigation, site management, and image display.

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Section: Collection Methods Of Geological Interface Informationmentioning

confidence: 99%

Application of Multimedia Tilt Photogrammetry Technology Based on Unmanned Aerial Vehicle in Geological Survey

2022

Mathematical Problems in Engineering

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“…e design omits the DSP control chip and expands the memory to form a simplified minimum system. Reprogrammable features and highly integrated features can greatly reduce the design cycle and design cost [6]. Tappari proposed designing the internal logic circuit of FPGA and creating the firmware program of FX3.…”

Section: Literature Reviewmentioning

confidence: 99%

Simulation of Multisensor Energy Data Fusion Transformer Acquisition System Based on FPGA

Luan

2022

International Transactions on Electrical Energy Systems

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In order to solve the problems of small signal acquisition range and poor acquisition accuracy of the existing multichannel acquisition system, a multisensor energy data fusion transformer acquisition system simulation method based on FPGA is proposed, and key hardware functions are designed and implemented. The system uses FPGA to control the core logic, synchronously collects and controls the energy data of the CCD camera and the laser rangefinder, organizes and uses an external large-capacity SDRAM group for buffering, and uses a dedicated PCI interface chip PLX9656 to achieve high-speed data transmission. Two pieces of sensor energy data and PCI bus energy data are stored in real time using a large-capacity disk array composed of multiple SATA hard disks. The function and performance of the energy data acquisition and storage system were tested. After the actual system test, the experimental results show that the transmission speed of the system through the PCI bus exceeds 200 MB/s, the writing speed of the continuous disk array is 240 MB/s, and the real-time acquisition and recording speed is 100 MB/ss. Conclusion. The system effectively solves the problems of high-speed data acquisition and storage and large capacity data transmission of key sensor nodes.

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“…Although tDCS has been evaluated in a few studies, it has provided promising results sufficient to hypothesize its future impacts as part of OUD treatment (Martinotti, G. et al 2018). Further, a few meta-analyses have revealed a medium-sized effect of active tDCS stimulation in decreasing substance dependence regardless of the substance type (Chen, J. et al, 2020).…”

Section: Discussionmentioning

confidence: 99%

Transcranial Direct Current Stimulation in Opioid Use Disorder: A Systematic Review of the Literature

Anculle-Arauco,

Alnafisah,

Czischke L

et al. 2023

ppcrj

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Introduction: Opioid use disorder burdens healthcare facilities and causes significant annual mortality and healthcare costs. Its current management focuses on biopsychosocial interactions; however, a high relapse rate prompts the search for new treatment strategies, such as Transcranial Direct Current stimulation. Methods: A systematic literature search of PubMed, MEDLINE, and clinicaltrials.gov databases was performed. The search terms reflected the conditions and treatment modalities of interest. Trials reporting transcranial direct current stimulation in opioid use disorders were eligible. The primary outcome was craving reduction, measured using different questionnaires. According to the PRISMA guidelines, three research members independently performed article selection and data extraction. Also, was performed Cochrane risk-of-bias tool for each article. Results: Seven articles were selected from the 16 eligible papers. In total, 233 patients were included in this study. All studies were conducted in Asian countries and included only male subjects, and the follow-up time was limited to less than six months. Most studies (6/7) reported a significant improvement in craving reduction in the active transcranial direct current stimulation group. Discussion: Most studies concluded that active transcranial stimulation significantly reduced craving scores; however, the studies had high variability in frequency, intensity, and stimulation site. The limited locations of the trials and small sample sizes represent a threat to the external validity of the studies, which emphasizes the need for further large multicenter randomized trials with adequate follow-up periods to test the efficacy of transcranial direct current stimulation in treating opioid use disorder.

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A novel framework for UAV returning based on FPGA

Cited by 10 publications

References 26 publications

Application of Multimedia Tilt Photogrammetry Technology Based on Unmanned Aerial Vehicle in Geological Survey

Application of Multimedia Tilt Photogrammetry Technology Based on Unmanned Aerial Vehicle in Geological Survey

Simulation of Multisensor Energy Data Fusion Transformer Acquisition System Based on FPGA

Transcranial Direct Current Stimulation in Opioid Use Disorder: A Systematic Review of the Literature

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