Getting the Most Out Of Your Next Generation Digital Security Surveillance System

As current DSS (digital security surveillance) systems more and more demand real-time analytics, operations benefit greatly from clearer and more information-rich video and maximized computing power.

Posted in: Electronics & Computers, White Papers

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CCSDS Telemetry Decoder VHDL Core

Costly ground support equipment can be eliminated. Goddard Space Flight Center, Greenbelt, Maryland A flexible Telemetry Decoder Core (TDC) has been designed to decode Consultative Committee for Space Data Systems (CCSDS) encoded telemetry data. The TDC can be used to eliminate costly ground support equipment by placing the telemetry decoding functions in an inexpensive, commercially available field programmable gate array (FPGA) integrated circuit instead of special-purpose printed circuit boards. The TDC can also be used in the design of telemetry systems by enabling end-toend simulation of these systems’ upfront simulation before any hardware is built. The TDC was developed for the Global Precipitation Measurement (GPM) project and because of its success on that project, it will be used to verify telemetry on the Magnetospheric Multiscale (MMS) project.

Posted in: Electronics & Computers, Briefs

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Thermal Response of a High-Power Switch to Short Pulses

Simulations are used to calculate temperature changes that occur inside semiconductor switch modules, where measurement is not possible. Army Research Laboratory, Aberdeen Proving Ground, Maryland Semiconductor switch modules composed of Super Gate Turn-Off Thyristors (SGTOs) have been evaluated. The switches are intended to handle kiloamplevel currents and may dissipate peak powers measured in megawatts. Recent experiments measured the response of a switch module composed of eight SGTOs to single-short, high-current pulses. Simulations of those experiments were performed to calculate the temperature changes that occur inside the devices, where measurement is not possible. Worst-case operating conditions in which the switches handle several pulses within the space of 4 or 5 seconds (s) also were simulated. Modeling and simulation were performed with SolidWorks 3D modeling software and SolidWorks Simulation computational fluid dynamics software from Dassault Systèmes.

Posted in: Electronics & Computers, Briefs

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New Algorithms Enable Self-Assembling, Printable Robots

In two new papers, MIT researchers demonstrate the promise of printable robotic components that, when heated, automatically fold into prescribed three-dimensional configurations.One paper describes a system that takes a digital specification of a 3-D shape — such as a computer-aided design, or CAD, file — and generates the 2-D patterns that would enable a piece of plastic to reproduce it through self-folding.The other paper explains how to build electrical components from self-folding laser-cut materials. The researchers present designs for resistors, inductors, and capacitors, as well as sensors and actuators — the electromechanical “muscles” that enable robots’ movements.“We have this big dream of the hardware compiler, where you can specify, ‘I want a robot that will play with my cat,’ or ‘I want a robot that will clean the floor,’ and from this high-level specification, you actually generate a working device,” said Daniela Rus, the Andrew and Erna Viterbi Professor of Electrical Engineering and Computer Science at MIT.SourceAlso: Learn about Self-Assembling, Flexible, Pre-Ceramic Composite Preforms.

Posted in: Electronics & Computers, Electronic Components, Manufacturing & Prototyping, Rapid Prototyping & Tooling, Motion Control, Motors & Drives, Power Transmission, Sensors, Software, Computer-Aided Design (CAD), Mathematical/Scientific Software, Machinery & Automation, Robotics, News

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Motion-Sensing Keyboard Lets Users Hover and Swipe

Microsoft engineers have developed a new type of augmented mechanical keyboard, sensing rich and expressive motion gestures performed both on and directly above the device. A low-resolution matrix of infrared (IR) proximity sensors is interspersed with the keys of a regular mechanical keyboard. This results in coarse, but high frame-rate motion data.

Posted in: Electronics & Computers, PCs/Portable Computers, Mechanical Components, Sensors, Software, Mathematical/Scientific Software, News

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New Rotary Sensor Keeps Conveyor Belts Running Smoothly

Rotary sensors can help determine the position of a moveable body in relation to an axis. They are essential to the smooth running of car engines in the automotive industry, for example. In factories, goods and products are transported from one processing station to the next via conveyor belt. For the transfer from one belt to the next to run smoothly, it must take place precisely at a specific position, which means knowing the relative position of objects on the conveyor belts as they move towards each other. This can be determined from the angle of rotation, which refers to the position of a moveable body to an axis.

Posted in: Electronics & Computers, Electronic Components, Photonics, Optics, Manufacturing & Prototyping, Industrial Controls & Automation, Consumer Product Manufacturing, Sensors, Test & Measurement, Measuring Instruments, News

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Wireless System Paves Way for 'Electroceutical' Medical Devices

A wireless system uses the same power as a cell phone to safely transmit energy to chips the size of a grain of rice. The technology paves the way for new "electroceutical" devices to treat illness or alleviate pain.The central discovery is an engineering breakthrough that creates a new type of wireless power transfer that can safely penetrate deep inside the body. The technology could spawn a new generation of programmable microimplants – sensors to monitor vital functions deep inside the body; electrostimulators to change neural signals in the brain; and drug delivery systems to apply medicines directly to affected areas.SourceAlso: Visit Medical Design Briefs.

Posted in: Electronics & Computers, Electronic Components, Power Management, Implants & Prosthetics, Medical, Drug Delivery & Fluid Handling, Patient Monitoring, Communications, Wireless, RF & Microwave Electronics, Semiconductors & ICs, News

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