Analog and digital interfaces between the process and the protection, automation and control system are communications based (IEC 61850 sampled values and GOOSE).
In order to be able to perform remote testing the system needs to meet the following requirements: Analog and digital interfaces between the process and the protection, automation and control system are communications based (IEC 61850 sampled values and GOOSE) Support of virtual isolation of test objects Remote secured access to the substation's test system.
The Android-only app has an attractive interface with big, bold numbers, and a number of expected features including the option to switch between analog and digital interfaces, support for multiple and recurring alarms, custom labels, and a built-in selection of alarm sounds to choose from.
The system is presented as four units; the Remote I/O (Input/Output), Local Analog and Digital I/O, Operator Interface and the Main Computer.
The hardware platform is constituted by data process unit, radio module, sensor control matrix, data storage flash, power supply unit, analog interfaces and extended digital interfaces.
This work proposes a novel and accurate measurement instrument for a wide range of resistance values oriented to portable applications, i.e. low power and low supply voltage (5 V) for battery operated equipment, with a small circuit design including analog sensing, digital interface (data reading and control) using a microcontroller and external communication.
Fortyish and lanky, the computer scientist specializes in inventing new computer interfaces to bridge the gap between analog and digital.
The arterial and ventricular catheters were connected to pressure transducers (P23Gb, Statham, Hato Hey, PR) and the signals were amplified (CL-615422-1, Gould Inc.ruments Systems, Inc., Valley View, USA) and digitally sampled (1 kHz) on an IBM/PC equipped with an analog to digital interface (DI-220, Dataq Instruments, Akron, USA).
Tsividis' research focuses on the synergistic co-existence of both analog and digital circuits working together on the same silicon chip, and on how these circuits interface with the physical, analog world.
Load and displacement were recorded with an analog to digital interface board.
The Weiss lab uses computer engineering principles of abstraction, composition, and interface specifications to program cells with sensors and actuators precisely controlled by analog and digital logic circuitry.
