Nowadays, Remote sensor networks have been broadly utilized in medical services applications, like emergency clinic and home patient checking. Compared to wired organizations, Remote clinical sensor networks are more ...
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The newest, most promising, and most active field of modern study is nanotechnology. Metal oxides have been used in variety of nanotechnology applications. Due to superior chemical stability, electrical conductivity, ...
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The proceedings contain 9 papers. The topics discussed include: deep blockchain to enable scalable web applications;security issues in robotic platforms, sensor networks and smart cities;cybersecurity issues in roboti...
The proceedings contain 9 papers. The topics discussed include: deep blockchain to enable scalable web applications;security issues in robotic platforms, sensor networks and smart cities;cybersecurity issues in robotic platforms;future of smart cities security challenges – proactive modelling & identification;secure course completion credentialing using Hyperledger fabric;energy-efficient routing in UAVs supported perimeter security networks;energy-efficient routing in UAVs supported perimeter security networks;reducing the WSN’s communication overhead by the SD-SPDZ encryption protocol;the interplay of social and robotics theories in AGI alignment: navigating the digital city through simulation-based multi-agent systems;and advanced security mechanisms in the spring framework: JWT, OAuth, LDAP and Keycloak.
This paper proposes an H-shaped microstrip patch antenna based on the Rogers RT 5880 substrate with a dimension of 6.2×8.4×1.57 mm3 and an optimized inset feed to match the patch antenna with a 50Ω character...
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With the growth of self-driving technologies, the reliability analysis of automated driving systems has received considerable attention from both academia and industry. Safety of the intended functionality (SOTIF) ser...
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Autonomous vehicles represent a transformative technology with the best implications for transportation systems. The key component of their success is their capability to detect and respond to their surroundings. For ...
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Curved imaging sensors bring significant size, weight and cost reduction to imaging systems while mitigating off-axis optical aberrations, as opposed to current flat sensors. Unlocking these key features has captured ...
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ISBN:
(纸本)9781510659612;9781510659629
Curved imaging sensors bring significant size, weight and cost reduction to imaging systems while mitigating off-axis optical aberrations, as opposed to current flat sensors. Unlocking these key features has captured the interest of major players over the last two decades. SILINA has been developing a CMOS Image sensor (CIS) curving process, which adapts to various sensor characteristics. This enables to maximize the optical performance of every single imaging system. We have demonstrated the manufacturing of curved CMOS Front-Side Illuminated (FSI) and Back Side Illuminated (BSI), opening a new area of compact, fast, wide-angle and high-resolution optical lenses. This new degree of freedom offered to optical designer can significantly simplify optical systems through a significant improvement of the optical performance while simplifying the system architecture in many different ways. The field of view (FOV), the contrast, the aperture can be increased while optical aberrations can be minimized. At the end, the different costs related to manufacturing, metrology, integration, and alignment are reduced. This is of great importance for applications requiring compact and high resolution lens, notably in low-light environment. To quantify the gain brought by curved image sensor for smartphone camera lens, we are performing several comparative optical lens designs. We compare traditional flat-image sensor based camera lens to camera lens optimized specifically with a curved image sensor. In this paper, we present the result obtained on wide-angle smartphone camera lens design considering a spherical concave image sensor. We compare the optical characteristics and performance with a reference optical design using a flat image sensor. We discuss the various benefits in terms of optical performance and Z-stack reduction.
Precise alignment of laser beams used in heterodyne interferometry is vital and necessary to the precision, accuracy, and quality of the measurement, but off the shelf-based breadboard setups have a large physical foo...
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ISBN:
(纸本)9781510679207;9781510679214
Precise alignment of laser beams used in heterodyne interferometry is vital and necessary to the precision, accuracy, and quality of the measurement, but off the shelf-based breadboard setups have a large physical footprint and many components that can introduce unwanted noise. Our lab creates optomechanical accelerometer devices including a fused silica resonator with a 5Hz natural frequency and uses a heterodyne displacement interferometer to readout the position of the test mass, which can then be used to determine the acceleration of the device. A novel compact fiber injector system design is presented here that reduces the footprint of the fiber collimator input of the heterodyne interferometer by an order of magnitude from a breadboard setup, down to 24 x 16 x 19 mm. This new injector system integrates both fibers of different frequencies directly onto the mount with the resonator, increasing stability and reducing entry points for vibrational noise while minimizing the optical path length difference between beams. Each beam can then be independently tilted and de-centered to maximize the fringe visibility at the output of the interferometer, using spring-loaded adjustment screws and secured in place with locking screws. An accelerometer using these injectors measured a displacement of 10(-9) m/vHz at 10(-2) Hz in air with the test mass anchored, nearly identical to the previous breadboard setup while being much more compact and portable. I will present the design, integration onto an accelerometer, and the initial acceleration noise measurements taken using these fiber injector systems.
The number of space-based optical imaging systems have substantially grown in recent years. Many of these commercial based vendors are exploring concepts to move processing applications directly to the space segment o...
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Physiological parameters during the exercise are instructive. According the heart rate, body temperature and etc, users could improve their sport performance, and be beneficial to their health. In addition, such equip...
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