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result(s) for
"Command modules"
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Research on UAV Flight Test Technology Based on Embedded Commands
2021
This paper presents the current situation that the pilot’s manual operation method can’t fully meet the requirements of UAV flight test. To solve the problem, a UAV flight test technology based on embedded command is proposed. By analysing the verification contents and assessment methods of UAV flight test, the typical actions in UAV flight test are extracted, the embedded command modules are designed, and the embedded command flight test method is formulated. The flight test results show that compared with the manual operation method, the embedded command flight test technology can alleviate pilot’s operation burden, reduce the flight test risks and improve the flight test efficiency.
Journal Article
AgriPath: a robust multi-objective path planning framework for agricultural robots in dynamic field environments
by
Belgibaev, Baurzhan
,
Zhao, Baidong
,
Yang, Chenghan
in
Adaptability
,
Agricultural land
,
Agriculture
2025
Robot path planning is a cornerstone of precision agriculture, enabling safe and efficient operations for agricultural robots. However, complex field environments—characterized by static and dynamic obstacles, dense vegetation, and unstructured terrain—pose significant challenges to effective path planning. Conventional methods, such as A*, Dijkstra, and rapidly exploring random tree (RRT), exhibit limitations in efficiency and adaptability to dynamic conditions. To address these challenges, this study introduces AgriPath, a robust multi-objective path planning framework that integrates an improved convolutional neural network (CNN), an improved A* algorithm, and an improved whale optimization algorithm (IWOA) to optimize pathfinding, convergence efficiency, and obstacle avoidance in complex agricultural settings. Key innovations include an improved CNN leveraging causal convolution and multi-head self-attention mechanisms to improve temporal modeling for short-term trajectory prediction, augmented by Gaussian perturbations to enhance initial solution diversity; an improved A* algorithm incorporating dynamic heuristic functions based on Normalized Difference Vegetation Index (NDVI), combined with Kalman filtering, to bolster global path adaptability; IWOA employing non-linear convergence factors and differential evolution mechanisms to dynamically balance path length, smoothness, and planning time; and an improved Douglas–Peucker algorithm paired with cubic B-spline smoothing and navigation command modules to ensure path simplification and real-time execution. Experiments conducted in the Modern Agricultural Demonstration Zone at Chengdu, Sichuan Province, China, across simple, moderate, and complex scenarios, demonstrate that AgriPath outperforms advanced algorithms—SBREA*, Ant Colony A*, Orchard A*, and Greedy A*—in path length, smoothness, planning time, and dynamic obstacle avoidance success rate, indicative of superior multi-objective optimization balance. This study significantly enhances the efficiency and robustness of agricultural robot path planning, offering a more adaptive solution for autonomous navigation in precision agriculture while providing new theoretical and practical directions for the field of path planning.
Journal Article
Vision-Guided Maritime UAV Rescue System with Optimized GPS Path Planning and Dual-Target Tracking
2025
With the global increase in maritime activities, the frequency of maritime accidents has risen, underscoring the urgent need for faster and more efficient search and rescue (SAR) solutions. This study presents an intelligent unmanned aerial vehicle (UAV)-based maritime rescue system that combines GPS-driven dynamic path planning with vision-based dual-target detection and tracking. Developed within the Gazebo simulation environment and based on modular ROS architecture, the system supports stable takeoff and smooth transitions between multi-rotor and fixed-wing flight modes. An external command module enables real-time waypoint updates. This study proposes three path-planning schemes based on the characteristics of drones. Comparative experiments have demonstrated that the triangular path is the optimal route. Compared with the other schemes, this path reduces the flight distance by 30–40%. Robust target recognition is achieved using a darknet-ROS implementation of the YOLOv4 model, enhanced with data augmentation to improve performance in complex maritime conditions. A monocular vision-based ranging algorithm ensures accurate distance estimation and continuous tracking of rescue vessels. Furthermore, a dual-target-tracking algorithm—integrating motion prediction with color-based landing zone recognition—achieves a 96% success rate in precision landings under dynamic conditions. Experimental results show a 4% increase in the overall mission success rate compared to traditional SAR methods, along with significant gains in responsiveness and reliability. This research delivers a technically innovative and cost-effective UAV solution, offering strong potential for real-world maritime emergency response applications.
Journal Article
Deployment of Secure Data Parameters Between Stock Inverters and Interfaces Using Command-Contamination-Stealth Management System
by
Henge, Santosh Kumar
,
Marouthu, Anusha
,
Rane, Ameya Madhukar
in
Assaults
,
College professors
,
Command modules
2024
The security issues more impact on stock data which allows the stockholders (SHs) and stock-inverters (SIs) to predict and invert false assets and stock values. Because of the security flaws and threads that let an attacker take over network devices, the attacker uses the system to attack another system. These problems have an even greater influence on stock data, which gives stockholders (SHs) and stock-inverters (SIs) the ability to forecast and reverse fictitious assets and stock values. This study suggests test scenarios regulate different BOTNETs, layered threshold-influenced data security parameters, and DDoS vulnerabilities for stock data integration and validation. In order to study the behavioral entry and exit sites of SHs and SIs, it has integrated three-tiered procedures with threshold-impacted data security criteria and data matrices. Role Management (RM), Remote Level of Command Executions (RLCE), LAN-WAN-LAN Transmission (LWL-T), and Detection of Conceal and Prevention (DoCP) environments are the frameworks of the first layer. The RM, RLCE, LWL-T and DoCP are tuned with threshold-influenced data security parameters which are more influencing stock values. The second layer is framed with Module Management (MM), Command Module (ComM), Contamination Module (ConM), and Stealth Module (SM). The third layer is framed with expected scenarios and threshold of various vulnerabilities, a thread which occurs based on DoS and BOTNETs. All these layers are interconnected together and integrated with behavioral factors of SHs and SIs. The vulnerabilities are tuned with SHs and SIs input data, then filtered with SHs and SIs behavioral matrices, the alerts has been generated according to their existing entries of the data. These influenced threshold metrics tuned through ARIMA and LSTM for future analysis of stock values. The authentication mode has synchronized dual and multi authentication mode of execution, which tuned to cross verify the investors credentials.
Journal Article
Sidewalk Fissure Identification Structure Using Picture Handling
2023
This research presents a sidewalk fissure identification structure based on picture handling techniques. The structure consists of a command module, a picture procurement module, and a data handling module. The command module generates a trigger signal based on received GPS location information, which is sent to the pictureprocurement module. The pictureprocurement module captures pictures of the road surface and road signs triggered by the signal, and transmits them to the data handling module. The data handling module processes the pictures to create a continuous digital picture of the road surface, applies picture identification procedures to detect fissures, and determines their position using GPS location information. This research also proposes a sidewalk fissure identification procedure using picture analysis. The structure and procedure enhance the precision and effectiveness of fissure identification in sidewalk.
Journal Article
High Oxygen Concentrations Can Be Hazardous
2017
A fire in the Apollo 1 command module killed all three crew members during a launch rehearsal test on Jan 27, 1967. The atmosphere of the command module was 100% oxygen at 16.7 psia (1.15 bar). Materials that are hard to ignite in air burn rapidly in high- or pure-oxygen environments. The source of ignition was likely a problem in the electrical wiring. High oxygen concentration has also been a contributing factor in industrial incidents. Concentrations of oxygen above the 21% found in air widen the fuel concentration range in which an explosion is possible. Higher-than-normal oxygen concentrations significantly lower the autoignition temperature and minimum ignition energy.
Journal Article
BRIGHT IDEAS: Making a Small Change to Fix a Big Problem
2017
The Biomedical Services Department at Lexington Medical Center in West Columbia, SC, has a big job. The team of 13 biomedical equipment technicians (BMETs) service approximately 16,000 assets, including 700 infusion pumps, 1,700 pump channels, and 100 patient-controlled anesthesia modules throughout a 428-bed hospital, 60 physician practice locations, six urgent care centers, and two ambulatory surgery centers. Among this multitude of equipment, it was the 540 physiologic monitoring command modules that posed one of the more frustrating and potentially dangerous healthcare technology management (HTM) issues for the hospital in 2012. Marking all 540 physiologic monitoring modules took about a year and a half. The effort to improve communication between HTM and other hospital departments ultimately paid off for the departments and the hospital. Now that the initiative is in full swing, Michael Chisholm, a BMET at Lexington said he rarely gets called for improperly configured blood pressure alarms.
Journal Article
Interface Design for the Command-control Module Based on Adaptive Interaction Technology
by
Chen, Long
,
Qu, Jue
,
Wang, Wei
in
Adaptive control
,
Adaptive Interface
,
Command-control Module
2020
Firstly, the concepts of three adaptive modes are introduced, and the experiment for the interface layout based on the adaptive adjustment interaction is designed, in which the speed of information identification of other 8 regions is sorted under the condition of interference of the intermediate region with fixed constraints. An adaptive interaction experiment of state monitoring parameter interface is designed, and the following conclusions are obtained: Compared with the original chart monitoring interface, the dimensionless and normalized graphical parameter interface can effectively shorten the time to discover abnormal parameters and improve the accuracy rate.
Journal Article
Design, Construction, and Testing of the APOLLO ATCA Blades for Use at the HL-LHC
by
Fulcher, Jonathan Richard
,
Monk, David
,
Rohlf, James
in
Blades
,
Command modules
,
Large Hadron Collider
2025
The Apollo Advanced Telecommunications Computing Architecture (ATCA) platform is an open-source design consisting of a generic \"Service Module\" (SM) and a customizable \"Command Module\" (CM), allowing for cost-effective use in applications such as the readout of the inner tracker and the Level-1 track trigger for the CMS Phase-II upgrade at the HL-LHC. The SM integrates an intelligent IPMC, robust power entry and conditioning systems, a powerful system-on-module computer, and flexible clock and communication infrastructure. The CM is designed around two Xilinx Ultrascale+ FPGAs and high-density, high-bandwidth optical transceivers capable of 25 Gb/s. Crates of Apollo blades are currently being tested at Boston University, Cornell University, and CERN.
Collective Forgetting: Inside the Smithsonian's Curatorial Crisis
2014
Since its founding in 1846, the Smithsonian Institution has served as the US' premier showplace of wonder. Each year, more than 30 million visitors pass through its twenty-nine outposts, delighting at Dorothy's ruby slippers, marveling at the lunar command module, and paying their respects to the original star-spangled banner. Another 140 million people visited the Smithsonian on the Web last year alone. Collectively, the Smithsonian preserves more than 137 million objects, specimens, and pieces of art. It's the largest museum and research complex in the world. But behind the brilliant display cases, the infrastructure is starting to crack. The kind of harm being done to the Smithsonian's collections is not the quick devastation of a natural disaster, nor the malicious injury of intentional abandonment. Rather, it's a gradual decay resulting from decades of incremental decisions by directors, curators, and collections managers, each almost imperceptibly compounding the last.
Journal Article