Analysis of the IEC 61850 protocol when used for communication during maintenance operations in an electrical substation grid
- Njova, Dion, Ogudo, Kingsley, Umenne, Patrice
- Authors: Njova, Dion , Ogudo, Kingsley , Umenne, Patrice
- Date: 2020
- Subjects: IEC 61850 , Intelligent Electronic Devices (IED’s) , GOOSE messages
- Language: English
- Type: Conference proceedings
- Identifier: http://hdl.handle.net/10210/445433 , uj:38974 , Citation: Njova, D., Ogudo, K. & Umenne, P. 2020. Analysis of the IEC 61850 protocol when used for communication during maintenance operations in an electrical substation grid.
- Description: Abstract: During Substation maintenance a bay is taken out of service, tested and during testing traffic is generated on the Substation Communication Network (SCN) in a power utility. A model of a Substation Communication Network that is using the International Electrotechnical Commission (IEC) 61850 protocol has been modeled in Optimized Network Engineering Tool (OPNET). IEC 61850 is a protocol that can be used in a power utility to provide interoperability between different vendors of Intelligent Electronic Devices (IED’s). Most of the IED’s sold by manufacturers for power utility networks support IEC 61850 protocol. The model has three scenarios and they are normal operation of a Substation, maintenance in a Substation and Buszone operation at a Substation. In all the scenarios packet end to end delay of GOOSE, GSSE, SV and MMS messages are monitored. The throughput from the IED under maintenance and the throughput at the Substation RTU end is monitored in the Model. The design of the Substation Communication Network using IEC 61850 will assist when trying to predict the behavior of the network with regards to this specific protocol during maintenance and when there are faults in the communication network or IED’s.
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- Authors: Njova, Dion , Ogudo, Kingsley , Umenne, Patrice
- Date: 2020
- Subjects: IEC 61850 , Intelligent Electronic Devices (IED’s) , GOOSE messages
- Language: English
- Type: Conference proceedings
- Identifier: http://hdl.handle.net/10210/445433 , uj:38974 , Citation: Njova, D., Ogudo, K. & Umenne, P. 2020. Analysis of the IEC 61850 protocol when used for communication during maintenance operations in an electrical substation grid.
- Description: Abstract: During Substation maintenance a bay is taken out of service, tested and during testing traffic is generated on the Substation Communication Network (SCN) in a power utility. A model of a Substation Communication Network that is using the International Electrotechnical Commission (IEC) 61850 protocol has been modeled in Optimized Network Engineering Tool (OPNET). IEC 61850 is a protocol that can be used in a power utility to provide interoperability between different vendors of Intelligent Electronic Devices (IED’s). Most of the IED’s sold by manufacturers for power utility networks support IEC 61850 protocol. The model has three scenarios and they are normal operation of a Substation, maintenance in a Substation and Buszone operation at a Substation. In all the scenarios packet end to end delay of GOOSE, GSSE, SV and MMS messages are monitored. The throughput from the IED under maintenance and the throughput at the Substation RTU end is monitored in the Model. The design of the Substation Communication Network using IEC 61850 will assist when trying to predict the behavior of the network with regards to this specific protocol during maintenance and when there are faults in the communication network or IED’s.
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Realizing future intelligent networks via spatial and multi-temporal data acquisition in disdrometer networks
- Periola, Ayodele, Ogudo, Kingsley, Alonge, Akintunde
- Authors: Periola, Ayodele , Ogudo, Kingsley , Alonge, Akintunde
- Date: 2020
- Subjects: Remote sensing , Quantitative precipitation estimation , Disdrometer Networks
- Language: Ennglish
- Type: Conference proceedings
- Identifier: http://hdl.handle.net/10210/445459 , uj:38971 , Citation: Periola, A., Ogudo, K. & Alonge, A. 2020. Realizing future intelligent networks via spatial and multi-temporal data acquisition in disdrometer networks.
- Description: Abstract: Data acquisition and qualitative precipitation estimation (QPE) via disdrometers play an important role in estimating rain-induced attenuation in wireless networks. However, existing disdrometer observations do not provide sufficient information for modelling intelligent wireless networks. The design of intelligent wireless networks requires that QPE parameters for a location be known at different epochs. This requires that disdrometers with spatial variability should be capable of multi-temporal QPE observations. A disdrometer architecture that addresses this challenge is presented in this paper. The proposed multi–temporal disdrometer incorporates a computing payload for storing QPE related data at multiple epochs. Performance evaluation shows that the use of the proposed multi–temporal disdrometer in QPE related data acquisition increases data suitable for QPE related modelling by up to 52.2% and 49.4% in the short term and long term respectively.
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- Authors: Periola, Ayodele , Ogudo, Kingsley , Alonge, Akintunde
- Date: 2020
- Subjects: Remote sensing , Quantitative precipitation estimation , Disdrometer Networks
- Language: Ennglish
- Type: Conference proceedings
- Identifier: http://hdl.handle.net/10210/445459 , uj:38971 , Citation: Periola, A., Ogudo, K. & Alonge, A. 2020. Realizing future intelligent networks via spatial and multi-temporal data acquisition in disdrometer networks.
- Description: Abstract: Data acquisition and qualitative precipitation estimation (QPE) via disdrometers play an important role in estimating rain-induced attenuation in wireless networks. However, existing disdrometer observations do not provide sufficient information for modelling intelligent wireless networks. The design of intelligent wireless networks requires that QPE parameters for a location be known at different epochs. This requires that disdrometers with spatial variability should be capable of multi-temporal QPE observations. A disdrometer architecture that addresses this challenge is presented in this paper. The proposed multi–temporal disdrometer incorporates a computing payload for storing QPE related data at multiple epochs. Performance evaluation shows that the use of the proposed multi–temporal disdrometer in QPE related data acquisition increases data suitable for QPE related modelling by up to 52.2% and 49.4% in the short term and long term respectively.
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Design of a smart home system using bluetooth protocol
- Sondo, Sandile, Ogudo, Kingsley, Umenne, Patrice
- Authors: Sondo, Sandile , Ogudo, Kingsley , Umenne, Patrice
- Date: 2020
- Subjects: Micro-controller , Home automation , Sensor
- Language: English
- Type: Conference proceedings
- Identifier: http://hdl.handle.net/10210/445463 , uj:38970 , Citation: Sondo, S., Ogudo, K. & Umenne, P. 2020. Design of a smart home system using bluetooth protocol.
- Description: Abstract: Home automation is an intelligent, functional as a unit system that facilitates home processes without unnecessarily complicating the user’s life. Devices can be connected, which in turn connect and talk through a centralized control unit, which are accessible via mobile phones. These devices include lights, appliances, security systems, alarms and many other sensors and devices. This paper presents the design and implementation of a Bluetooth based smart home automation system which uses a Peripheral interface controller (PIC) microcontroller (16F1937) as the main processer and the appliances are connected to the peripheral ports of the microcontroller via relays. The circuit in the project was designed in Diptrace software. The PCB layout design was completed. The fully functional smart home prototype was built and demonstrated to functional.
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- Authors: Sondo, Sandile , Ogudo, Kingsley , Umenne, Patrice
- Date: 2020
- Subjects: Micro-controller , Home automation , Sensor
- Language: English
- Type: Conference proceedings
- Identifier: http://hdl.handle.net/10210/445463 , uj:38970 , Citation: Sondo, S., Ogudo, K. & Umenne, P. 2020. Design of a smart home system using bluetooth protocol.
- Description: Abstract: Home automation is an intelligent, functional as a unit system that facilitates home processes without unnecessarily complicating the user’s life. Devices can be connected, which in turn connect and talk through a centralized control unit, which are accessible via mobile phones. These devices include lights, appliances, security systems, alarms and many other sensors and devices. This paper presents the design and implementation of a Bluetooth based smart home automation system which uses a Peripheral interface controller (PIC) microcontroller (16F1937) as the main processer and the appliances are connected to the peripheral ports of the microcontroller via relays. The circuit in the project was designed in Diptrace software. The PCB layout design was completed. The fully functional smart home prototype was built and demonstrated to functional.
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Space Habitat Data Centers—for future computing
- Periola, Ayodele, Alonge, Akintunde, Ogudo, Kingsley
- Authors: Periola, Ayodele , Alonge, Akintunde , Ogudo, Kingsley
- Date: 2020
- Subjects: Space habitats , Data centers , Computing platforms
- Language: English
- Type: Article
- Identifier: http://hdl.handle.net/10210/450859 , uj:39648 , Citation: Periola, A., Alonge, A. & Ogudo, K. 2020. Space Habitat Data Centers—for future computing. , DOI: 10.3390/sym12091487
- Description: Abstract: Data from sensor-bearing satellites requires processing aboard terrestrial data centres that use water for cooling at the expense of high data-transfer latency. The reliance of terrestrial data centres on water increases their water footprint and limits the availability of water for other applications. Therefore, data centres with low data-transfer latency and reduced reliance on Earth’s water resources are required. This paper proposes space habitat data centres (SHDCs) with low latency data transfer and that use asteroid water to address these challenges. The paper investigates the feasibility of accessing asteroid water and the reduction in computing platform access latency. Results show that the mean asteroid water access period is 319.39 days. The use of SHDCs instead of non-space computing platforms reduces access latency and increases accessible computing resources by 11.9–33.6% and 46.7–77% on average, respectively.
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- Authors: Periola, Ayodele , Alonge, Akintunde , Ogudo, Kingsley
- Date: 2020
- Subjects: Space habitats , Data centers , Computing platforms
- Language: English
- Type: Article
- Identifier: http://hdl.handle.net/10210/450859 , uj:39648 , Citation: Periola, A., Alonge, A. & Ogudo, K. 2020. Space Habitat Data Centers—for future computing. , DOI: 10.3390/sym12091487
- Description: Abstract: Data from sensor-bearing satellites requires processing aboard terrestrial data centres that use water for cooling at the expense of high data-transfer latency. The reliance of terrestrial data centres on water increases their water footprint and limits the availability of water for other applications. Therefore, data centres with low data-transfer latency and reduced reliance on Earth’s water resources are required. This paper proposes space habitat data centres (SHDCs) with low latency data transfer and that use asteroid water to address these challenges. The paper investigates the feasibility of accessing asteroid water and the reduction in computing platform access latency. Results show that the mean asteroid water access period is 319.39 days. The use of SHDCs instead of non-space computing platforms reduces access latency and increases accessible computing resources by 11.9–33.6% and 46.7–77% on average, respectively.
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Underwater computing systems and astronomy–multi-disciplinary research potential and benefits
- Periola, Ayodele, Alonge, Akintunde, Ogudo, Kingsley
- Authors: Periola, Ayodele , Alonge, Akintunde , Ogudo, Kingsley
- Date: 2021
- Subjects: Astronomy , Camera Networks , Computing
- Language: English
- Type: Article
- Identifier: http://hdl.handle.net/10210/480950 , uj:43561 , Citation: Periola, A., Alonge, A. and Ogudo, K. 2021. Underwater computing systems and astronomy–multi-disciplinary research potential and benefits.
- Description: Abstract: The Ocean plays an important role in hosting investigations in underwater astronomy and enabling the realization of new research prospects. This paper discusses synergistic prospects of the blue economy from the perspective of underwater astronomy and scientific inquiry, technological and economic development. The presented research investigates how the synergy enhances computing applications. The paper presents the overloaded application paradigm that explores the ability of underwater telescope networks to accommodate additional applications. The investigated metrics for computing applications are the accessible computational resources, and power usage effectiveness (PUE) that is investigated in a scenario where onshore computing stations used in underwater astronomy observations are integrated with existing terrestrial data centers. This is necessary as onshore computing stations benefit from free cooling being located near natural maritime resources. The performance evaluation investigates how the proposed synergy and the emerging crowd–sourcing can enhance the observation resolution for underwater astronomy observations. Investigation shows that the synergy enhances accessible computational resources, PUE and observation resolution by an average of 48.8%, 1.6% and 41.3%, respectively.
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- Authors: Periola, Ayodele , Alonge, Akintunde , Ogudo, Kingsley
- Date: 2021
- Subjects: Astronomy , Camera Networks , Computing
- Language: English
- Type: Article
- Identifier: http://hdl.handle.net/10210/480950 , uj:43561 , Citation: Periola, A., Alonge, A. and Ogudo, K. 2021. Underwater computing systems and astronomy–multi-disciplinary research potential and benefits.
- Description: Abstract: The Ocean plays an important role in hosting investigations in underwater astronomy and enabling the realization of new research prospects. This paper discusses synergistic prospects of the blue economy from the perspective of underwater astronomy and scientific inquiry, technological and economic development. The presented research investigates how the synergy enhances computing applications. The paper presents the overloaded application paradigm that explores the ability of underwater telescope networks to accommodate additional applications. The investigated metrics for computing applications are the accessible computational resources, and power usage effectiveness (PUE) that is investigated in a scenario where onshore computing stations used in underwater astronomy observations are integrated with existing terrestrial data centers. This is necessary as onshore computing stations benefit from free cooling being located near natural maritime resources. The performance evaluation investigates how the proposed synergy and the emerging crowd–sourcing can enhance the observation resolution for underwater astronomy observations. Investigation shows that the synergy enhances accessible computational resources, PUE and observation resolution by an average of 48.8%, 1.6% and 41.3%, respectively.
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