A multi-sensor fusion simultaneous localization and mapping(SLAM) method based on factor graph optimization that can adaptively modify the weight of the graph factor is proposed in this study, to enhance the localizat...
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Unified Military Vehicular sensor Network (UM-VSNET) aims to build a multi-base vehicular sensor network using aerial, land-based, and underwater sensor nodes under a single architecture. The future VSNET used in mili...
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ISBN:
(纸本)9798331532925
Unified Military Vehicular sensor Network (UM-VSNET) aims to build a multi-base vehicular sensor network using aerial, land-based, and underwater sensor nodes under a single architecture. The future VSNET used in military environments requires secure and unified control optimization strategies at various war bases such as land, air, sea surface, and undersea. The unmanned army vehicles used in land, air, sea, and undersea environments get more crucial spots to counter any vulnerabilities and provide sustainable electronic battlefield security features. The recent works in this domain have limitations on heterogeneous and multi-medium handover opportunities. Most of the existing mechanisms mainly execute uniform handover protocols among wireless nodes. These are insufficient for unified military vehicular networks since they are more versatile regarding medium principles, internal resources, functional targets, security expectations, and autonomous capabilities. On the scope, the proposed model initiates heterogeneous handover principles with Artificial Intelligence (AI) and interactive autonomous capabilities. The proposed research creates Unmanned Aerial Vehicles (UAV), terrestrial mobile, and maritime network models with crucial configuration parameters. The article proposes Multi-Medium Handover Transactions with Interactive and Protected Self-Intelligence Principles for Unified Vehicular sensor Networks (MH-IPUV) on the developed network platform. MH-IPUV consists of heterogeneous medium access control policies, vehicular mobility models (aerial, land, and sea), distributed confidential (advanced Encryption Standard, AES) and authentication procedures (Elliptic Curve Cryptography-Digital Signature, ECCDS), Secure Hashing Algorithm (SHA-3), and secure AI-based handover principles. In the proposed military network environment, each node (UAVs, Terrestrial Nodes, and Maritime Nodes) has been implemented with the algorithms of the MH-IPUV system. Considering the sec
The major project undertaken was regarding the HIGH SPEED CAMERA interfaceVALIDATION FOR LINK LAYER. Crucial in modern digital imaging, converting optical images into electronic signals. This Projects highlights recen...
The major project undertaken was regarding the HIGH SPEED CAMERA interface
VALIDATION FOR LINK LAYER. Crucial in modern digital imaging, converting optical images
into electronic signals. This Projects highlights recent advancements in image sensor technology, focusing
on Charge- Coupled Device (CCD) and Complementary Metal-Oxide-Semiconductor (CMOS) sensors.
Continuous evolution in sensor technology promises further improvements in image quality, power efficiency,
and functionality, driving innovation across various industries. Video timing involves the precise control of
the sequence and duration of signals that govern the working of image sensors. It ensures that each
pixel is read out at the correct time synchronization across the entire sensor array. Proper video timing is
essential for achieving high frame rates, reducing motion artifacts, and ensuring accurate color
reproduction. Recent advancements in video timingtechniques have enabled significant improvements
in image sensor performance. Innovations such as global shutter technology, which captures the entire
image simultaneously, have reduced motion artifacts and enhanced image quality in high-speed applications.
Additionally, advanced timing algorithms have improved synchronization in multi-sensorsystems, enabling
more accurate 3D imaging and depth perception. Camera interfaces are responsible for transmitting
image data from the sensor to the processor, ensuring that the data is transferred efficiently and
accurately. The choice of interface affects the speed, resolution, and overall performance of the imaging
system. Common camera interfaces include MIPI (Mobile Industry Processor interface), USB, HDMI, and
Ethernet, each with its own set of advantages and applications. USB 3.0, MIPI CSI-2, and CoaXPress 2.0,
have significantly improved the performance and application range of imaging systems. These innovations
are driving improvements in data transfer rates, power
Timely and accurate identification of fault types at the early stage of minor faults is significant for cutting off fault evolution. In order to have a clear understanding of the pipeline robot's own situation in ...
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Timely and accurate identification of fault types at the early stage of minor faults is significant for cutting off fault evolution. In order to have a clear understanding of the pipeline robot's own situation in the pipeline, this paper proposes a fault diagnosis system for pipeline robots based on sound signal recognition. This can effectively reduce the probability of serious faults such as shutdown and loss of control in the pipeline without affecting the safe operation of the pipeline robot, which is a key issue to improve the reliability of the pipeline robot. The system consists of a combination of three parts: hardware, software, and algorithm. On the one hand, Raspberry Pi is the core module, while on the other hand, it is also responsible for the data transmission between the various modules, including storing the original sound signals collected by the sensors and transmitting the diagnosis results to the upper computer software interface. The proposed system is validated on the dataset collected by the data experimentation platform. The experimental results show that the proposed fault prediction method obtains advanced results on this dataset, verifying the effectiveness and stability of the proposed fault diagnosis system for pipeline robots based on sound signal recognition.
Recently, image sensors for mobile devices have shrunk in pixel size and increased in resolution, while there is a strong demand for low-light photography and high-frame-rate video recording with low power. Because sm...
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ISBN:
(纸本)9781665428002
Recently, image sensors for mobile devices have shrunk in pixel size and increased in resolution, while there is a strong demand for low-light photography and high-frame-rate video recording with low power. Because smaller pixels result in reduced sensitivity, the exposure time must be increased. However, when capturing fast-moving objects with longer exposure times, blurry images are unavoidable. To solve this problem, bracketing and burst imaging have recently been reported [1]. These techniques combine multiple RGB frames into a single frame. To capture high-speed objects with the same exposure time, the number of frames and output frame rate are increased. As a result, the power consumption increases significantly. Conversely, event-based vision sensors (EVSs) have been proposed as a more efficient means to capture motion information than the existing frame-based RGB sensors [2], [3]. The possibility of effective image enhancement such as deblur and video frame interpolation using a deep neural network (DNN) with RGB and event data have been reported [4], [5]. To satisfy the required image quality, these image-enhancement techniques need RGB characteristics equivalent to advanced mobile RGB sensors and focal alignment on a sensor between RGB and event pixels. To address these issues, this paper proposes a hybrid-type sensor embedding high-frame-rate event pixels with advanced mobile 1.22mu m RGB pixels in an existing mobile image sensor architecture. To allow image enhancement of the hybrid data in the mobile application processor, efficient packaging of the data in frames and accurate synchronization between RGB and EVS data are required. Therefore, the EVS part of the sensor uses a scan readout access and global detection. The scan readout type EVS has the problem that the frame rate decreases as the number of pixels increases, owing to the limited access speed of event rows and limited bandwidth of the sensor output interface. Therefore, a variable frame rate
Drones, or unmanned aerial vehicles (UAVs), are becoming increasingly vital across various industries, where their reliable operation is crucial for safety and efficiency. Ensuring this reliability requires the early ...
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Accurate and non-invasive measurement of body temperature is crucial for early disease diagnosis, patient condition monitoring, and infection control in hospital environments. In this paper, we preliminary assess the ...
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ISBN:
(纸本)9798350303872
Accurate and non-invasive measurement of body temperature is crucial for early disease diagnosis, patient condition monitoring, and infection control in hospital environments. In this paper, we preliminary assess the accuracy of an embedded electronic system based on the MLX90640 thermal camera, with the final goal of integrating it in a hospital robot provided of an advanced and automated monitoring system. The MLX90640 thermal camera, combined with a specially developed algorithm, accurately measured patients' body temperature in a non-invasive and continuous manner, with a maximum absolute error equal to 0.2 degrees C. The preliminary results suggest that integrating the MLX90640 thermal camera into a device for vital signs monitoring represents a promising solution for efficient and reliable body temperature monitoring in hospital departments. The application of this technology could enhance the quality of healthcare, enabling timely interventions for patients.
This paper presents the implementation of an automated recording and analysis system for the capturing and evaluation of performances of speed climbing athletes. In collaboration with the National Youth Sports Institu...
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People with paralysis due to neurological disorders such as stroke and SCI require scheduled rehabilitation exercise to regain muscle function and fitness. Most rehabilitation techniques involve some kind of devices o...
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