Energy-efficient autonomous framework for monitoring railroad bridges in the USA using wireless smart sensors

The advent of cloud computing has nurtured an unprecedented growth of datacentres. With its growth, the main concern for service providers and data centre owners is toefficiently manage the energy of the data centres without compromising their computingcapabilities. This concern is genuine as data centres utilise 10-30 times more energy thanoffice spaces and also generate immense heat. As cooling accounts for half of the total powerconsumption in data centres, efficient cooling systems have become a vital need for datacentres. This has resulted in increased research and innovation in the field of efficient coolingof data centres, which in turn has led to growth in filing of patents in this domain. Patents aretechno-legal documents that contain different kinds of information that is accessible to all. Inthe present study, patents are used as source of information for competitive/businessintelligence to highlight the technological trends in the field of energy efficient cooling of datacentres. The study reveals that IBM, HP, Schneider and Hon Hai Industries are the majorplayers working in this technological area. Contrary to the notion that air conditioning wouldbe the most researched area for cooling data centres, the study reveals that there is alsointerest in the hardware of the servers and racks to produce less heat or to have built-incooling mechanisms. The main technologies for which patents are being filed includeventilation using gaseous coolant, technologies related to rack design as well as liquid cooling.Original equipment manufacturers and other vendors have increased filings, along with cloudservice providers. Most of these technologies originate from Asia-Pacific and this region is astrong market, following the USA.

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Localized Climatisation of Perishable Products: Solutions for Increasing Energy Efficiency

Volume 8B: Heat Transfer and Thermal Engineering ◽

10.1115/imece2014-36750 ◽

2014 ◽

Cited By ~ 1

Author(s):

Johannes Wagner ◽

Mirko Schäfer ◽

Long Phan ◽

Alexander Schlüter ◽

Jens Hesselbach ◽

...

Keyword(s):

Air Pollution ◽

Energy Efficient ◽

Energy Demand ◽

Energy Savings ◽

High Energy ◽

Perishable Products ◽

Refrigeration System ◽

Air Humidity ◽

Cooling Systems ◽

The Usa

Many industries have significant requirements regarding temperature control, air humidity and air pollution which must be strictly adhered to avoid bacterial formation and contamination. High refrigeration specifications are only required in certain areas. However, these specifications are often applied across the whole production hall which results in unnecessarily high energy demand and usage. A more energy efficient approach is the localized cooling of the product, which conditions the direct environment of the product only. This leads to the consideration of separating or localizing the products specifically requiring refrigeration in the production hall. In this paper, localized product cooling systems are analyzed in order to identify the savings potential associated with a localized refrigeration system. The study shows the energy savings potential for a manufacturing company located in three different locations: in Germany, Canada and the USA.

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SIGNAL PROCESSING AND ACOUSTIC EVENT DETECTION FOR WIRELESS SMART SENSORS

Sensors and Microsystems ◽

10.1142/9789812835987_0070 ◽

2008 ◽

Author(s):

MARCO ANTONIO LÓPEZ-TRINIDAD ◽

MAURIZIO VALLE

Keyword(s):

Signal Processing ◽

Event Detection ◽

Smart Sensors ◽

Acoustic Event Detection ◽

Acoustic Event ◽

Wireless Smart Sensors

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Sudden Event Monitoring of Civil Infrastructure Using Demand-Based Wireless Smart Sensors

Sensors ◽

10.3390/s18124480 ◽

2018 ◽

Vol 18 (12) ◽

pp. 4480 ◽

Cited By ~ 8

Author(s):

Yuguang Fu ◽

Tu Hoang ◽

Kirill Mechitov ◽

Jong Kim ◽

Dichuan Zhang ◽

...

Keyword(s):

Low Power ◽

Field Experiments ◽

Effective Means ◽

Smart Sensors ◽

Monitoring Systems ◽

Sleep Mode ◽

High Fidelity ◽

Civil Infrastructure ◽

Event Monitoring ◽

Wireless Smart Sensors

Wireless smart sensors (WSS) have been proposed as an effective means to reduce the high cost of wired structural health monitoring systems. However, many damage scenarios for civil infrastructure involve sudden events, such as strong earthquakes, which can result in damage or even failure in a matter of seconds. Wireless monitoring systems typically employ duty cycling to reduce power consumption; hence, they will miss such events if they are in power-saving sleep mode when the events occur. This paper develops a demand-based WSS to meet the requirements of sudden event monitoring with minimal power budget and low response latency, without sacrificing high-fidelity measurements or risking a loss of critical information. In the proposed WSS, a programmable event-based switch is implemented utilizing a low-power trigger accelerometer; the switch is integrated in a high-fidelity sensor platform. Particularly, the approach can rapidly turn on the WSS upon the occurrence of a sudden event and seamlessly transition from low-power acceleration measurement to high-fidelity data acquisition. The capabilities of the proposed WSS are validated through laboratory and field experiments. The results show that the proposed approach is able to capture the occurrence of sudden events and provide high-fidelity data for structural condition assessment in an efficient manner.

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