Quality Control of Lead‐Acid Battery according to Its Condition Test for UPS Supplier and Manufacturers

Hsiao, Tsung-Chih; Chen, Tzer-Long; Liu, Chia‐Hui; Lee, Chih-Ming; Yu, Hsin-Chun; Chen, Tzer-Shyong

doi:10.1155/2014/910820

Cited by 9 publications

(5 citation statements)

References 25 publications

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“…We notice that the key operation 12–14 used in constructing the three schemes under comparison is the same: modular exponentiation. The computational complexity of the schemes by Chang et al 9 and Das et al 5 is O( k 2 ) in the number of modular hashing.…”

Section: Analysis Of Securitymentioning

confidence: 99%

A hierarchical access control scheme based on Lagrange interpolation for mobile agents

Hsiao

Chen

et al. 2018

International Journal of Distributed Sensor Networks

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The mobile agent is functioning as an information exchanger with hosts. In order to reduce the communication time that the host sent to the members of a large system. This article proposes to use a function defined by Lagrange polynomial to compute decryption key. Each host will be given a decryption key to access the confidential document by inputting a secret key into an interpolation function which is generated from Lagrange interpolation. Since tasks are done by the mobile agent, the whole process will be performed within a short time period because there is no physical connection between the end devices. The information exchange occurs at the end hosts.

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Section: Analysis Of Securitymentioning

confidence: 99%

A hierarchical access control scheme based on Lagrange interpolation for mobile agents

Hsiao

Chen

et al. 2018

International Journal of Distributed Sensor Networks

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“…The VRLA battery is an important part of the modern new energy field, and it has been the workhorse of uninterruptible power supply (UPS). With the development of the world economy, transportation, energy, communications, and other areas, the back-up VRLA battery systems are widely used [ 1 ]. As a series-connected component of the backup power supply, a single battery’s malfunction, due to various faults during operation, will result in the failure of the whole system.…”

Section: Introductionmentioning

confidence: 99%

Design of the VRLA Battery Real-Time Monitoring System Based on Wireless Communication

Liu

et al. 2020

Sensors

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The VRLA (valve-regulated lead-acid) battery is an important part of a direct current (DC) power system. In order to resolve issues of large volume, complicated wiring, and single function for a battery monitoring system at present, we propose to build a novel intelligent-health-monitoring system. The system is based on the ZigBee wireless communication module for collecting voltage, temperature, internal resistance, and battery current in real-time. A general packet radio service (GPRS) network is employed for interacting data with the cloud-monitoring platform. The system can predict the remaining capacity of the battery combined with the software algorithm for realizing real-time monitoring of the battery’s health status and fault-warning, providing a basis for ensuring the safe and reliable operation of the battery. In addition, the system effectively integrates most of the circuits of the battery status collector onto one chip, which greatly reduces the size and the power consumption of the collector and also provides a possibility for embedding each VRLA battery with a chip that can monitor the health status during the whole life. The test results indicate that the system has the characteristics of real-time monitoring, high precision, small-volume, and comprehensive functions.

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“…As a result, the battery initial cost, size and mounting requirements, estimated life, and criticality of the equipment to be protected should all be considered when selecting a UPS (Carle, 1993). Lead-acid batteries' life is regarded to be irreversible when the dischargeable capacity of a battery is below 80% of the specified capacity; at this stage, the battery is considered to be terminated (Hsiao et al, 2014).…”

Section: Introductionmentioning

confidence: 99%

“…When the discharge capability is below 80%, then internal polar plate would quickly deteriorate and break down, and at this stage the battery should be discarded (Hsiao et al, 2014).…”

Section: Introductionmentioning

confidence: 99%

“…A normal Valve Regulated Lead Acid (VRLA) battery has a three to five year service life (Weber & Nasiri, 2016). However, a battery's life can be significantly shortened due to a variety of environmental, chemical and user-related issues (Hsiao et al, 2014). These are the most common errors to avoid in order to get the maximum service life out of UPS battery because without a battery, UPS is nothing.…”

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confidence: 99%

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Automated uninterruptible power supply battery protector: case study of Tanzania atomic energy commission, Arusha-Tanzania

Gurisi

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Uninterruptible Power Supply (UPS) is electrical apparatus that provides emergency power to its load when the input power source fails and manages power fluctuations through its battery during power failure to allow a user to save work and shut down a system procedurally. The UPS’ electrical ability depends on its battery’s strength. At Tanzania Atomic Energy Commission (TAEC) users mostly leave their UPS on as they go home, and when there is blackout, the UPS batteries get drained to zero leading to a significant number of UPS getting damaged in a year. Automated Uninterruptible Power Supply Battery Protector (AUPSBP) is developed to protect UPS battery at the institution using Kanban Agile methodology which supported teamwork. The AUPSBP monitors the voltage from mains to UPS using a voltage sensor. When the sensor detects a lack of voltage from the mains to UPS, AUPSBP triggers timer counting down towards switching the UPS off. When tested, AUPSBP switched off the UPS when the set time of 5 minutes elapsed, and when UPS battery voltage was <100V protecting UPS battery from draining to zero during blackout. It sent Short Messages using Global System for Mobile communication when mains power was switched off, and when UPS was switched off before the set time of 5 minutes elapsed. The AUPSBP is effective for switching off UPS before its battery drains to zero to prevent battery damage on different types and sizes of UPSs with only changes in switch and timer. Therefore, AUPSBP is needed to protect UPS at TAEC.

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Quality Control of Lead‐Acid Battery according to Its Condition Test for UPS Supplier and Manufacturers

Abstract: The risk of insufficient petroleum resources has forced human beings to emphasize the acquisition and storage of energy. To avoid such situation, this study tends to explore the effective management of lead-acid batteries for effective utilization conforming to the industrial requirements.

Cited by 9 publications

References 25 publications

A hierarchical access control scheme based on Lagrange interpolation for mobile agents

A hierarchical access control scheme based on Lagrange interpolation for mobile agents

Design of the VRLA Battery Real-Time Monitoring System Based on Wireless Communication

Automated uninterruptible power supply battery protector: case study of Tanzania atomic energy commission, Arusha-Tanzania

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