scholarly journals Digital energy monitor: design, simulations and prototype

2017 ◽  
Vol 35 (2) ◽  
pp. 45
Author(s):  
N. Sharma ◽  
P. Kumar ◽  
N. Singh ◽  
U. Mehta
Keyword(s):  
Remote Monitoring ◽  
Cost Effective ◽  
Emerging Technology ◽  
Prototype System ◽  
Monitoring Device ◽  
Entire System ◽  
Demand Side ◽  
Energy Monitoring ◽  
Voltage Sensors ◽  
Design And Implementation

This paper demonstrates the design and implementation of a GSM based digital energy monitoring device. Firstly fuzzy based model is developed to replicate the characteristic of current and voltage sensors. The entire system is also studied and simulated in terms of utility side supply, load, microcontroller digitization and GSM communication. A virtual data sharing technic is also studied for the proposed system using state flow logic. A prototype system is verified real-time with its test and verification phase results. In this work, remote monitoring of electricity has been made easier for the utility. Demand side management is also presented as customers can instantly get their electricity consumptions when requested. Further, an effective overcurrent monitoring system has been embedded along with a backup battery source. Results obtained from the experiments prove that with this emerging technology it is possible to move towards a smarter grid at a rapid and cost effective way.

scholarly journals A V-SLAM Guided and Portable System for Photogrammetric Applications

2021 ◽  
Vol 13 (12) ◽  
pp. 2351
Author(s):  
Alessandro Torresani ◽  
Fabio Menna ◽  
Roberto Battisti ◽  
Fabio Remondino
Keyword(s):  
Low Cost ◽  
Cost Effective ◽  
Motion Blur ◽  
Guidance System ◽  
Prototype System ◽  
Active Sensors ◽  
Localization And Mapping ◽  
Acquisition Speed ◽  
Mobile Mapping System ◽  
Slam Algorithm

Mobile and handheld mapping systems are becoming widely used nowadays as fast and cost-effective data acquisition systems for 3D reconstruction purposes. While most of the research and commercial systems are based on active sensors, solutions employing only cameras and photogrammetry are attracting more and more interest due to their significantly minor costs, size and power consumption. In this work we propose an ARM-based, low-cost and lightweight stereo vision mobile mapping system based on a Visual Simultaneous Localization And Mapping (V-SLAM) algorithm. The prototype system, named GuPho (Guided Photogrammetric System) also integrates an in-house guidance system which enables optimized image acquisitions, robust management of the cameras and feedback on positioning and acquisition speed. The presented results show the effectiveness of the developed prototype in mapping large scenarios, enabling motion blur prevention, robust camera exposure control and achieving accurate 3D results.

Laser-Based Measurement of Over Dimensional Freight Rail Shipments

2012 ◽  
Author(s):  
Bryan W. Schlake ◽  
Brian S. Daniel ◽  
Ron Voorheis
Keyword(s):  
Measurement System ◽  
Human Error ◽  
Cost Effective ◽  
Measuring System ◽  
Prototype System ◽  
Reference Target ◽  
Potential Benefits ◽  
Multiple Measurements ◽  
Current Measuring ◽  
Time Required

In pursuit of improved safety, Norfolk Southern Corp. (NS) has partnered with Amberg Technologies to explore the potential benefits of a laser-based measurement system for measuring over dimensional freight rail shipments. Shipments that do not fall within a standard geometric envelope, denoted as Plate B in the Association of American Railroads (AAR) Open Top Loading Rules [1], are considered to be over dimensional, or High-Wide Loads (HWLs). Extending beyond the limits of the Plate B diagram, these loads are not permitted in unrestricted interchange service. Instead, they must be measured both at points of origin and at interchange points. For US Class I Railroads, the de facto method for measuring HWLs requires mechanical personnel to either climb on the equipment or use a ladder and physically measure the overall height and width of the load. Using a tape measure, plumb line, and 6-foot level, car inspectors, or carmen, must often make multiple measurements to determine the height or width of a critical point on the load. The summation of these measurements can be subject to mathematical human error. In addition to the inherent limitations with regards to accuracy and efficiency, this method of measurement presents considerable safety challenges. The objective of the project was to develop a portable, cost-effective and accurate measurement system to improve the day-to-day operational process of measuring HWLs and reduce human exposure to railyard hazards. Norfolk Southern worked closely with Amberg Technologies to provide a clear overview of the current measuring methods, requirements, challenges and risks associated with HWLs. Amberg then developed a prototype system (with patent pending) and successful tests have been completed at both a point of origin for NS shipments and at a location where HWLs are received at interchange. The measuring system consists of a tripod mounted laser, a specially designed track reference target (TRT) and software designed specifically for HWL measurements. The system allows car inspectors to take measurements from a safe, strategic location away from the car. As a result, this system eliminates the need to climb on the equipment or a ladder and greatly reduces the amount of time spent on and around live tracks. In addition, initial tests indicate that this technology reduces the labor time required to measure HWLs by as much as one half while improving measurement accuracy. These tests have demonstrated that a laser-based system has the potential to greatly improve the safety, efficiency and accuracy associated with measuring HWLs.

scholarly journals Energy Monitoring System for Existing Buildings in Indonesia

2018 ◽  
Vol 42 ◽  
pp. 01003
Author(s):  
Sentagi Sesotya Utami ◽  
Faridah ◽  
Na’im A. Azizi ◽  
Erlin Kencanawati ◽  
M. Akbar Tanjung ◽  
...  
Keyword(s):  
Energy Consumption ◽  
Monitoring System ◽  
Local Governments ◽  
Energy Savings ◽  
Performance Testing ◽  
Cost Effective ◽  
Existing Buildings ◽  
Energy Monitoring ◽  
Building Permit ◽  
Significant Difference

Current studies conducted by JICA, AMPRI and IFC-World Bank, reported that large commercial buildings in Indonesia are not energy and water efficient. One of the cause is the lack of regulation. Meanwhile, effective regulations to reduce energy and water consumption are the concern mostly in a new building to obtain a building permit. This strategy is understandable as retrofitting existing buildings are often more difficult to be implemented, and enforcement is still a major issue in Indonesia. Local governments are currently working on streamlining building permit process as well as developing an online monitoring system for existing buildings. By applying a Building Energy Management System (BEMS) enables to reduce energy consumption up to 15%. An energy monitoring system was designed and installed through this research for Department of Nuclear Engineering and Engineering Physics (DNEEP) building, Faculty of Engineering, Universitas Gadjah Mada. It is a 20 years old two-story building used for educational activities, which consist of classrooms, laboratories, offices and storage spaces. An audit energy was done recently in 2015 where an energy consumption of 261.299,636 kWh/year.m2 was reported. In the existing condition, a power meter is inaccessible and therefore, the only feedback of occupancy behavior in the energy consumption is through the electricity bill. The previous study has shown that building occupants would behave more efficiently if the amount of energy used is notified, and the amount of energy savings are recorded. However, these energy monitoring systems are considered expensive and uniquely tailored for every building. This research aims to design and install a cost effective BEMS based on occupant’s satisfactory assessment of the lighting, acoustics, and air conditioning quality. The data will be used as a decision supporting system (DSS) by building management through the use of a GUI. The design of the interface was based on a survey result from the prospective users. Installed energy monitoring system uses a current sensor with an accuracy of 98% and a precision of 0.04 A while the voltage sensor with an accuracy of 98% and a precision of 0.58 V. The performance testing shows that the number of web clients influences delay of data transmission. The result of the survey shows that GUI is categorized as fair in design without a significant difference between the perceptions of users with and without survey supervision.

scholarly journals 4 Fluid Dispenser Prototype: A Time Based Approach

2014 ◽  
Vol 1 (1) ◽  
pp. 5
Author(s):  
S. M. Omair ◽  
Nageen Shahid ◽  
M. A. Haleem ◽  
M. Azam ◽  
M. W. Munir ◽  
...  
Keyword(s):  
Cost Effective ◽  
Experimental Results ◽  
Prototype System ◽  
Great Demand ◽  
Fluid Dispensing ◽  
Transceiver Module

In today's era when precise, accurate and timeefficient systems are in great demand, automated techniquessupersede manual practices. As a need of time, we introduce awireless, automated, cost effective, yet reliable and efficientsystem of fluid dispensing. Our prototype system can dispensevarying amounts of fluids in milliliters (maximum 1L) as perdemand of the user. It uses the principle of time based fluiddispensing achieved through the built-in timer property of theAT89C51 microcontroller. To satisfy the principle used andverify the system's accuracy, fluids of varying viscosities weredispensed and monitored. The experimental results of thewireless fluid dispensing system when tested showed linearrelationship between the dispensing time and desired volumes offluids having differing viscosities. The added feature of wirelesscontrol using HM-TRP series transceiver module along with onsitecontrol via a keypad eliminated the need of physical presenceof operator within the range of 10 meters in order to make thesystem operational. This system can be used in pharmaceuticaland beverage industries as well as in different laboratories fordispensing and filling volumes of fluids with varying viscosities.

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