Power cable, as an important power equipment widely used in urban power transmission and distribution, its insulation state influences the reliability of urban power supply. Partial discharge (PD) detection is an effe...
详细信息
In solar based distributed generation systems bidirectional DC/DC converters (BDC) are inevitable for the control of power flow between storage units and the DC bus. Wide range of voltage gain is the key feature neede...
详细信息
In smart manufacturing, the demand increases to be able to monitor and adjust process execution during production. It has led to a shift towards distributed, modular automation. A solution seems to be to use a cogniti...
详细信息
ISBN:
(纸本)9781728149646
In smart manufacturing, the demand increases to be able to monitor and adjust process execution during production. It has led to a shift towards distributed, modular automation. A solution seems to be to use a cognitive architecture. It turns out that their generality often makes them unsuitable for specific industrial problems. In this paper, we propose a cognition-inspired architecture design for health monitoring tasks. The problem class is represented by a conveyor belt use case. We then discuss to what extent this architecture matches common implementations of cognitive theories by following a generalized cognitive process.
Using Swarm UAVs to collect feedback information from sensor nodes can greatly improve the coverage rate and energy efficiency of Wireless sensor Networks (WSNs), especially for environmental monitoring in inaccessibl...
详细信息
ISBN:
(纸本)9781665436908
Using Swarm UAVs to collect feedback information from sensor nodes can greatly improve the coverage rate and energy efficiency of Wireless sensor Networks (WSNs), especially for environmental monitoring in inaccessible areas. Based on a modular swarm UAV platform and randomly distributedsensor network, this paper devotes to design a clustering algorithm which considers the distance constraints of sensor communication. Then, relying on the cluster results, we propose an Ant Colony Optimization (ACO)-based cooperative path planning for modular UAVs, with multiple constraints brought by characters of separate/recombine modes. Simulation results indicate that the proposed clustering algorithm and cooperative path planning is capable of effectively realizing the adaptive clustering and improving the total information collected by the UAV-aided WSNs.
Security has become the main issue in the current data transmission, whereas it is considered as a significant goal for vendors and providers of cloud services. Hyper elliptic curve cryptography (HECC) technique is th...
详细信息
One of the main challenges for communication in Vehicular Ad Hoc Networks (VANETs) is efficient network channel utilization for the transmission of network packets. With the growing number of vehicles in the network, ...
详细信息
ISBN:
(纸本)9781728105703
One of the main challenges for communication in Vehicular Ad Hoc Networks (VANETs) is efficient network channel utilization for the transmission of network packets. With the growing number of vehicles in the network, the number of safety messages increases quickly, which results in the network channel congestion. In this paper, we introduce a new approach to adapt the transmission power, which is based on the vehicle density of the network. The aim is to reduce congestion on the network channel and improve the overall performance of network. Our simulation results indicate that this approach can lead to enhanced performance in terms of reduced packet loss and inter-packet delay.
Recent developments in software, hardware, and communication technologies resulted in a sudden increase of things connected to the Internet. Not only did the number of devices connected to the Internet increase expone...
详细信息
ISBN:
(纸本)9781728198095
Recent developments in software, hardware, and communication technologies resulted in a sudden increase of things connected to the Internet. Not only did the number of devices connected to the Internet increase exponentially, so did their kind - devices previously unthought-of are now participants of the Internet of Things/Everything ecosystem. Subsequently, the reusability of existing IoT solutions or solution components is crucial to face the high demand for new types of things to be connected to the network. A well-defined, architectural approach that implements reusability is crucial. In this paper, IoT systems are viewed as a whole and abstracted to an immense spread-out device that is sensing everything and acting to everything in the environment. Consequently, a concept which views the Internet of Things as an Internet of sensor-Actuator is proposed. This concept assumes that interaction with the environment is provided by well-defined sensor-Actuator pattern components that provide services to the applications. By combining practices from the automotive layered architecture approaches, as well as the sensor-Actuator Pattern defined for the system scaling and reuse purposes, the similarity of the signal conditioning for acquiring and acting is pointed out. Furthermore, the diagnosis and protection procedures are discussed for both sensors and actuators, and their auxiliary functions are considered. The proposed architecture is analyzed on an industrial robotic arm application.
Finding chemical compounds in the air has applications when situations such as gas leaks, environmental emergencies and toxic chemical dispersion occur. Enabling robots to undertake this task would provide a powerful ...
详细信息
ISBN:
(纸本)9781728162126
Finding chemical compounds in the air has applications when situations such as gas leaks, environmental emergencies and toxic chemical dispersion occur. Enabling robots to undertake this task would provide a powerful tool to prevent dangerous situations and assist humans when emergencies arise. While the dispersion of chemical compounds in the air is intrinsically a three-dimensional (3D) phenomenon, the scientific community tackled primarily two-dimensional (2D) scenarios so far. This is mainly due to the challenges of developing a platform able to successfully provide chemical compounds samples of a 3D space. In this paper, a 3D bio-inspired algorithm for odor source localization, previously validated in a controlled physical environment leveraging a robotic manipulator, is adapted for deployment on a micro aerial vehicle equipped with an odor sensor. Given the effect that the propellers have on a gas distribution, the algorithmic adaptation focused on enhancing the sensing strategy of the platform. Additionally, two sensor placement configurations are assessed to determine which one yields best sensing results. A performance evaluation in different environmental scenarios is carried out to test the robustness of the implementation. Two different localization systems are used for the performance evaluation experiments to quantify the impact of localization accuracy on the algorithm's outcome.
Multilateration systems reconstruct the location of a target that transmits electromagnetic or acoustic signals. The employed measurements for localization are the times of arrival (TOAs) of the transmitted signal, me...
详细信息
ISBN:
(纸本)9781728173955
Multilateration systems reconstruct the location of a target that transmits electromagnetic or acoustic signals. The employed measurements for localization are the times of arrival (TOAs) of the transmitted signal, measured by a number of spatially distributed receivers at known positions. We present a novel multilateration algorithm to localize multiple targets that transmit indistinguishable signals at unknown times. That is, each receiver measures merely a set of TOAs with no association to the targets. Our method does not need any prior information. Therefore, it can provide uncorrelated, static measurements to be introduced into a separate tracker subsequently, or an initialization routine for multi target trackers.
The Deterministic and Synchronous Multi-Channel Extension (DSME) protocol is a recent amendment to the ieee 802.15.4 standard. It combines contention-based and time-division medium access, offers channel diversity, an...
详细信息
ISBN:
(纸本)9781728105703
The Deterministic and Synchronous Multi-Channel Extension (DSME) protocol is a recent amendment to the ieee 802.15.4 standard. It combines contention-based and time-division medium access, offers channel diversity, and is aimed to support IIoT applications with stringent requirements in terms of timeliness and reliability. In this paper, we show how to configure DSME for a given data collection task. This includes the definition of the slot and frame length and the slot and channel schedule. We formulate different scheduling strategies as linear programs minimizing latency and energy. We verify our results through theoretical analysis and simulations and compare them with state-of-the-art scheduling algorithms. The results indicate a reduced delay of up to 80% for deep networks while also increasing reliability. Additionally, the proposed scheduling strategies significantly reduce the required buffer size.
暂无评论