scholarly journals Performance Analysis of VRLA Battery for DC Load at Telecommunication Base Station

ELKHA ◽  
2021 ◽  
Vol 13 (2) ◽  
pp. 148
Author(s):  
Imelda Uli vistalina Simanjuntak ◽  
Heryanto Heryanto ◽  
Yossy Rahmawaty ◽  
Tulus Manurung
Keyword(s):  
Performance Analysis ◽  
Base Station ◽  
Battery Life ◽  
Power Outage ◽  
Battery Capacity ◽  
Fast Charging ◽  
Discharge Duration ◽  
High Level ◽  
Battery Discharge ◽  
Vrla Battery

The high level of power outage in Sukabumi-Cianjur area has influenced the operations of telecommunication industry in the vicinity. This has shortened the battery life at the Base Station (BTS). This study aims to analyze the performance of a (new) VRLA battery against a DC load (BTS) to support the continuity of BTS operation in case of a power outage. The research method used is a (new) battery charge-discharge procedure. Parameters are analyzed by determining the on-site battery discharge duration, the pressure at the battery terminals between cells during backup, and the capacity of the rectifier module to support fast charging. To support fast charging, the rectifier with the formula N+1 and C-rate is 10% and C15 is 15% of the battery capacity. The internal impedance value is 3.4 mΩ and the battery terminal pressure (torque) is 9-11 N/m. The battery performance analysis of the four BTS shows that two of them managed to do a backup, while the other two did not provide good performance.

scholarly journals Self-select target neighboring base station assisted handover for natural disaster in LTE-A network

2020 ◽  
Vol 19 (1) ◽  
pp. 309
Author(s):  
Azita Laily Yusof ◽  
Ainnur Eiza Azhar ◽  
Norsuzila Ya’acob
Keyword(s):  
Natural Disaster ◽  
Weighted Average ◽  
Signal Strength ◽  
Received Signal Strength ◽  
Base Station ◽  
Average Score ◽  
Battery Life ◽  
Power Outage ◽  
Two Parameters ◽  
Selection Of

This paper presents Self-Select Target Neighboring Base Station Assisted Handover for Natural Disaster in LTE-A Network. In this study, two parameters have been introduced which are known as received signal strength of user (RSS) and left over power of base station (LoP) in order to maintained good QoS of UE and prolong battery life of base station when there is power outage. A distance fraction coefficient (α) with value 0.2 has been introduced to RSS expression to improve the signal strength by reducing the area that the UE’s covered. Both parameters are used to calculate weighted-average score (WAS) for selection of potential target base station to avoid more users to connect to the affected base station. From the results, sRSS=0.8 gave the highest WAS with value of WAS=0.84 for users from 1 to 100 compares to other value of sRSS. Moreover, by using no natural disaster condition as reference, Condition 1 (wRSS=80%, wLoP=20% ) with the lowest percentage of improvement (3.75%.) will be chosen as handover condition as it near to base station, avoid overloaded users to the affected base station, hence prolong battery life as it only use 20% of battery usage.

scholarly journals Persistent Multi-Agent Search and Tracking with Flight Endurance Constraints

Robotics ◽  
2018 ◽  
Vol 8 (1) ◽  
pp. 2 ◽  
Author(s):  
John Gainer Jr. ◽  
Jeremy Dawkins ◽  
Levi DeVries ◽  
Michael Kutzer
Keyword(s):  
Target Tracking ◽  
Autonomous Vehicles ◽  
Base Station ◽  
Search Performance ◽  
Battery Capacity ◽  
Coordination Algorithms ◽  
Multi Agent ◽  
High Level ◽  
Long Endurance ◽  
The Relationship

A large group of small, limited endurance autonomous vehicles working cooperatively may be more effective in target search and track operations when compared with a long endurance vehicle. For a persistent search and track task, a need exists for coordination algorithms that account for limited agent endurance. This paper presents a multi-agent persistent search and track algorithm incorporating endurance constraints in a high-level algorithm that deploys and recovers vehicles from a stationary base station. Agents are assigned to search, track, return, and deploy modes using on-board sensor and battery measurements. Simulations and experiments show the relationship between the number of agents, battery capacity, search performance, and target tracking performance. The measures used to quantify these relationships include spatiotemporal coverage, target tracking effectiveness, and the usage of available aircraft. Hardware experiments demonstrate the effectiveness of the approach.

scholarly journals Analisis Efektivitas Kelembagaan Pengelolaan Hutan Bersama Masyarakat (PHBM) di KPH Bandung Utara Jawa Barat

2014 ◽  
Vol 1 (1) ◽  
pp. 1-11
Author(s):  
Bahruzin Bahruzin ◽  
Aceng Hidayat ◽  
Eka Intan Kumala Putri
Keyword(s):  
Forest Management ◽  
Performance Analysis ◽  
Stakeholder Analysis ◽  
Forest Resources ◽  
Forest Resource ◽  
Joint Forest Management ◽  
Average Income ◽  
Community Based ◽  
Forest Functions ◽  
High Level

Community-based forest management (CBFM) was aimed to achieve the sustainability of forest functions and to omptimize its benefits. CBFM around the Forest Lap Area in North Bandung is a joint forest management between Perum Perhutani and forest villagers. The purposes of this study were; (1) to analyse the processes and stakeholders of CBFM, (2) to analyse the institution effectiveness of CBFM, (3) to analyse the result of the CBFM implementation The approach of this research was the stakeholder analysis and IPA (importance of Performance Analysis). The result of stakeholder mapping showed that Perum Perhutani and LMDH had the role in the implementation of CBFM system. The results of the economic impact of CBFM calculations indicated that the system could increase the income of MDH. This was indicated by the change in the average income of farmers by 63%. The result of IPA could be seen from the mapping of availability level of forest resources and forest resource need for the community included in B quadran in which it had a high level of availability and interest.

scholarly journals DESIGN AND DEVELOPMENT OF FAST CHARGING BATTERY USING FUZZY LOGIC CONTROL TECHNIQUE

2019 ◽  
Vol 1 (1) ◽  
pp. 19
Author(s):  
Muhammad Nizam ◽  
Naji Abdalaziz Ali
Keyword(s):  
Fuzzy Logic ◽  
Fuzzy Logic Control ◽  
Cycle Performance ◽  
Control Technique ◽  
Battery Life ◽  
Battery Charger ◽  
Control Techniques ◽  
Logic Control ◽  
Battery Chargers ◽  
Fast Charging

<span lang="EN-US">Battery charging is an important issue when it is associated with battery life and cycle performance. The aim of this research is to design and promote fast battery chargers using fuzzy logic control techniques (FLC) for LiFePO4 batteries have been developed. The proposed charger is controlled by voltage and current to activate the PWM duty. The results show that the proposed battery charger has the potential to accelerate charging up to 37% at the rate when charging 2C. This means it is faster than the existing filling. The charger proposed by the FLC method is also capable of charging LiFePO4 batteries with greater efficiency, which is 82%. It can be concluded that the FLC application method has better performance than the CC-CV method</span>

scholarly journals Monitoring System-Based Flying IoT in Public Health and Sports Using Ant-Enabled Energy-Aware Routing

2021 ◽  
Vol 2021 ◽  
pp. 1-11
Author(s):  
Inam Ullah Khan ◽  
Muhammad Abul Hassan ◽  
Mohammad Dahman Alshehri ◽  
Mohammed Abdulaziz Ikram ◽  
Hasan J. Alyamani ◽  
...  
Keyword(s):  
Ad Hoc ◽  
Residual Energy ◽  
Base Station ◽  
Rapid Decline ◽  
Energy Aware ◽  
Remote Communication ◽  
Aerial Vehicles ◽  
Wide Range ◽  
Hoc Networks ◽  
High Level

In recent decades, the Internet of flying networks has made significant progress. Several aerial vehicles communicate with one another to form flying ad hoc networks. Unmanned aerial vehicles perform a wide range of tasks that make life easier for humans. However, due to the high frequency of mobile flying vehicles, network problems such as packet loss, latency, and perhaps disrupted channel links arise, affecting data delivery. The use of UAV-enabled IoT in sports has changed the dynamics of tracking and working on player safety. WBAN can be merged with aerial vehicles to collect data regarding health and transfer it to a base station. Furthermore, the unbalanced energy usage of flying things will result in earlier mission failure and a rapid decline in network lifespan. This study describes the use of each UAV’s residual energy level to ensure a high level of safety using an ant-based routing technique called AntHocNet. In health care, the use of IoT-assisted aerial vehicles would increase operational performance, surveillance, and automation optimization to provide a smart application of flying IoT. Apart from that, aerial vehicles can be used in remote communication for treatment, medical equipment distribution, and telementoring. While comparing routing algorithms, simulation findings indicate that the proposed ant-based routing protocol is optimal.

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