Smart Power Supply Systems for Mission Critical Facilities

Hirose, Keikichi; Babasaki, Tadatoshi

doi:10.1587/transcom.e95.b.755

Cited by 4 publications

(3 citation statements)

References 45 publications

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“…In the paper referenced in [23], the authors described a system that monitors and controls remote deployed energy and communication facilities. The system allows for the use of more than 200,000 telecommunications, power rectifiers, inverters, UPS, and air-conditioning (AC) systems installed on approximately 8,000 communication facilities.…”

Section: Literature Reviewmentioning

confidence: 99%

Development of a Low-Cost Remote Monitoring Solution for Solar Home System

Orovwode,

Kayode,

Simeon

et al. 2023

IJETAE

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Data generation and real-time monitoring frameworks in photovoltaic (PV) systems are critical to the solar system's performance assessment and evaluation. They allow for proper operation and contribute to the identification of device malfunctions before any significant damage occurs. The low-cost hardware for the remote data monitoring of PV systems was built to complete this task. The system proposes to use low-cost, easy-touse data entry and real-time tracking systems for a home-based solar system. In the system, sensors were used to obtain information on the state of the solar system and a user can view the information obtained from the four sensors used without delay from the website to check and validate system performance indices. The advanced data logger gets data from the four sensors which are ACS712 (Current), LDR (Light Intensity), BMP180 (Ambient air pressure and temperature), and DHT11 (Ambient Humidity). The data obtained are uploaded to the ThingSpeak platform where all the real-time tracking results can be seen so that the performance of the PV home system can be monitored. The total cost of developing the system is $28.52 USD (N13,690). The system was tested and the results obtained shows a true representation of the physical solar parameters. This systematic tracking structure is precise with the error rate tracking results of the solar system yield rate of less than 5%. The tracking system may be scaled to accommodate large Photo Voltaic systems. Keywords— Low-cost real-time solar tracking system, Photovoltaic, Solar Home System, ThingSpeak, Sensors.

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Section: Literature Reviewmentioning

confidence: 99%

Development of a Low-Cost Remote Monitoring Solution for Solar Home System

Orovwode,

Kayode,

Simeon

et al. 2023

IJETAE

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“…Applications that utilized the isolation nature of fiber cables were proposed. Examples of such applications include the characterization of microwave antennas and devices, [25][26][27][28][29][30] the evaluation of channels 31,32) and transceivers [33][34][35] for novel wireless systems, and the measurement of electrocardiograms. 36) The other advantage of EO sensors is that they can detect electric fields without antennas.…”

Section: Introductionmentioning

confidence: 99%

Method for systematically designing polarization optics to maximize sensitivity of electrooptic sensors

Sasaki

Furuya

Hirata

et al. 2017

Jpn. J. Appl. Phys.

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A systematic design method is considered for maximizing the sensitivity of electrooptic sensors used for electric-field detection. The design method can be reduced to a routine procedure that includes matrix manipulation and differentiation. By applying the design method, the maximum sensitivity is realized with fewer optical components than in conventional electrooptic sensing systems. Since the proposed method shows a wide generality, it can be applied to designing sensors including various optical crystals.

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“…Missing data also affect the estimation of the time and amount of the peak load. Thus, incorrect estimations can cause outages, which have numerous social costs, such as halting the function and operation of facilities and equipment [ 5 ].…”

Section: Introductionmentioning

confidence: 99%

Branch-Based Centralized Data Collection for Smart Grids Using Wireless Sensor Networks

Kim

Jin

2015

Sensors

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A smart grid is one of the most important applications in smart cities. In a smart grid, a smart meter acts as a sensor node in a sensor network, and a central device collects power usage from every smart meter. This paper focuses on a centralized data collection problem of how to collect every power usage from every meter without collisions in an environment in which the time synchronization among smart meters is not guaranteed. To solve the problem, we divide a tree that a sensor network constructs into several branches. A conflict-free query schedule is generated based on the branches. Each power usage is collected according to the schedule. The proposed method has important features: shortening query processing time and avoiding collisions between a query and query responses. We evaluate this method using the ns-2 simulator. The experimental results show that this method can achieve both collision avoidance and fast query processing at the same time. The success rate of data collection at a sink node executing this method is 100%. Its running time is about 35 percent faster than that of the round-robin method, and its memory size is reduced to about 10% of that of the depth-first search method.

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Smart Power Supply Systems for Mission Critical Facilities

Cited by 4 publications

References 45 publications

Development of a Low-Cost Remote Monitoring Solution for Solar Home System

Development of a Low-Cost Remote Monitoring Solution for Solar Home System

Method for systematically designing polarization optics to maximize sensitivity of electrooptic sensors

Branch-Based Centralized Data Collection for Smart Grids Using Wireless Sensor Networks

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