Home

RTU Datalogger

The IPm2m® RTU and Datalogger from SIXNET (Ballston Lake, NY) combines RTU (Remote Terminal Unit), datalogger, and telemetry interface in a compact, installation-ready package. The IPm2m has a full complement of communication ports with an Ethernet, RS232, RS485, and USB. This flexible port configuration makes it ideal for connecting to devices in a remote location. Each port supports SIXNET and Modbus protocol along with DNP3 slave. A diverse mixture of discrete and analog I/O is well-suited for remote monitor and control of various instruments.

Datalogging memory of 32MB in flash or dynamic memory provides space to save data that can be accessed at any time. Uninterruptible power protection supplies backup power from a central location to each distributed Etherbus® I/O module using a single Etherbus Fieldbus cable. The Etherbus PoE supply feature will keep the module communicating and powering critical instrumentation during a power failure. IPm2m provides the means to connect remotely to bring real-time data from distributed locations to the Internet or into central information servers. The RTU datalogger is ideal for remote machineto- machine applications such as environmental monitoring, energy/facility management, critical equipment monitoring, resource tracking and control, automated field service, and security systems.

For Free Info Click Here.

Posted in: Products, Products, Electronics & Computers
Read More >>

Evaluation of Four Methods of Reconfiguring an FPGA

A study was performed to evaluate the relative merits of four methods of reconfiguring a field-programmable gate array (FPGA) in response to detection of a faulty configurable logic block (CLB). As used here, “reconfiguration” signifies replacing the faulty CLB by disconnecting it and connecting, in its stead, a previously unused CLB. This study was a major part of an effort to develop a circuit-reconfiguration system (CRS) that could utilize any of the four methods to implement fault tolerance in the FPGA.

Posted in: Briefs, Electronics & Computers, Failure analysis, Architecture, Integrated circuits
Read More >>

Asynchronous Architectures for Large-Integer Processors

New architectures have been developed for cryptographic hardware that offer high throughput, algorithm flexibility, radiation hardness, and low power. The asynchronous (clockless) architecture combines a dedicated large-integer processor (LIP), a field programmable gate array (FPGA), and a simple processor. The asynchronous LIP can perform public-key encryption using large keys at a fraction of the runtime energy consumption of synchronous (clocked) systems. The system is made of quasi-independent components that can be commercialized as stand-alone or in different configurations.

Posted in: Briefs, Electronics & Computers, Architecture, Computer software / hardware, Cryptography, Integrated circuits, Performance upgrades
Read More >>

Using High-Performance Computing Clusters to Support Fine-Grained Parallel Applications

A heterogeneous cluster comprised of host processors and field programmable gate arrays (FPGAs) was used to accelerate the performance of parallel fine-grained applications using a direct FPGA- to-FPGA communications channel. The communications channel is implemented with an all-to-all board that attaches directly to the FPGA boards via their I/O interface. Parallel Discrete Event Simulation (PDES) was used to demonstrate the acceleration performance.

Posted in: Briefs, Electronics & Computers
Read More >>

Implementing On-Board Cloud Detection on a Reconfigurable Computer

Reconfigurable Computers (RCs) combine traditional microprocessors with field programmable gate arrays (FPGAs), and are characterized by lower form/wrap factors compared to parallel platforms. Therefore, RCs are a promising candidate for on-board preprocessing. The RC used in this real-time cloud detection system is an SRC-6E reconfigurable computer. The system can be used for on-board preprocessing by prototyping the Landsat 7 ETM+ ACCA algorithm on the SRC-6E.

Posted in: Briefs, Electronics & Computers
Read More >>

Polymer Matrix Composite Materials for a Structural Multifunctional Fuel Cell

A structural multifunctional fuel cell design enables material elements participating in power or energy processes to also carry significant structural loads. Power and energy components require combinations of materials and components such as dielectrics, electrical conductors, and catalytic or reactive surfaces. Polymer matrix composite (PMC) materials were chosen because they are inherently multi-material systems and are well suited to these complex systems. Secondly, composite material processing provides a great degree of fabrication flexibility. PMC processing requires relatively low temperatures, thus preventing damage to embedded components; it can accommodate complex geometries and sub-components and is scalable to manufacturing settings.

Posted in: Briefs, Materials
Read More >>

Mechanical Response of an Al-PTFE Composite to Uniaxial Compression Over a Range of Strain Rates and Temperatures

Reactive materials can be loosely categorized as composites of inert solid materials which, when subjected to a violent mechanical stimulus such as an impact, react exothermally with a rapid release of energy. This reaction, while aptly described as “explosive,” differs from a true detonation or deflagration in that it requires a mechanical stimulus to not only initiate the reaction but also to sustain it. Such materials can also be fairly robust mechanically and can serve as substantial structural components. Because of these properties, reactive materials have a number of potential ordnance applications. Various compositions have been investigated to tailor properties of reactivity, strength, and density to suit particular needs.

Posted in: Briefs, Materials, Composite materials, Materials identification, Materials properties, Impact tests, Thermal testing
Read More >>

Novel Conductive Coatings of Carbon Nanotubes

Carbon nanotubes (CNTs) are the material of ever-increasing concern due to their excellent electronic and physicochemical properties. Currently, research has been focused towards their applications for use in chemical and biological sensors as well as their use in optoelectronic devices. One of the major challenges is the construction of flexible electronic devices.

Posted in: Briefs, Materials
Read More >>

Water Mist System for Shipboard Machinery Space Fires

Water mist has been determined to be a preferred alternative to Halon 1301 total flooding to extinguish fires occurring in ship machinery spaces and pump rooms, because it is toxicologically and physiologically inert. Water mist systems produce a drop size distribution with a range of drop sizes under 1000 μm, while the more conventional sprinkler systems produce much coarser particles. The smaller particle sizes have greater cooling efficiencies because evaporation and cooling are controlled by surface area, and the surface area of a large number of small droplets is greater than that of a small number of large droplets of the same total volume.

Posted in: Briefs, Mechanical Components
Read More >>

Axial Field Electric Motor

An axial field electric motor comprises one or more elements such as a rotor mounted for rotation and multiple axial flux permanent magnets carried by the rotor. The axial flux permanent magnets are oriented such that an associated magnetic flux produced thereby is at least substantially axially oriented. The axial flux permanent magnets are positioned around the rotor with alternating orientations of flux direction so that a flux direction of adjacent magnets is at least substantially axially oriented but opposite in direction. The radial flux permanent magnets are also carried by the rotor and oriented so that an associated magnetic flux produced is at least substantially radially oriented.

Posted in: Briefs, Mechanical Components
Read More >>