Digital Control Interface Research Articles

Development of Automatic Digital Control Interface for Addressing a Lighting Equipment System Using High Power Load

Development of Automatic Digital Control Interface for Addressing a Lighting Equipment System Using High Power Load

Control of Nao Robot Arm using Myo Armband

Life becomes less complex, resourceful and very educative thanks to the use of smart devices like the Myo armband and Nao robots. This work discusses about the use of Myo Armband which is a wireless device for interacting with other devices such as computer, robots. It uses myographic sensor signals to control the robot. This involves developing a digital control interface to control the robot with the help of Myo Gesture Control Armband System. A PC loaded with Ubuntu OS acts as a control unit. It interfaces the inputs of the Myo band to control the Nao robot, thereby we can control the movement of the Nao robot by using its interactions. In this case we use Nao, an educational robot. PyoConnect is a Linux alternative to MyoConnect a scripting software for programming the Myo band in Windows. The Pyoconnect software is used to connect the Myo with the Ubuntu operating system. NAOqi is a programming framework used to program the NAO. By importing the NAOqi module in the python script we can access the different functions of the Nao robot. Nao robot which supports network communication protocols are Ethernet and Wi-Fi. The interface between Nao and Myo is achieved through IP (Internet Protocol). Based on the hand gestures recorded by Myo armband, the Nao Robot Arm’s can be controlled

60-GHz Four-Element Phased-Array Transmit/Receive System-in-Package Using Phase Compensation Techniques in 65-nm Flip-Chip CMOS Process

AThe 60-GHz four-element phased-array transmit/receive (TX/RX) system-in-package antenna modules with phase-compensated techniques in 65-nm CMOS technology are presented. The design is based on the all-RF architecture with 4-bit RF switched LC phase shifters, phase compensated variable gain amplifier (VGA), 4:1 Wilkinson power combining/dividing network, variable-gain low-noise amplifier, power amplifier, 6-bit unary digital-to-analog converter, bias circuit, electrostatic discharge protection, and digital control interface (DCI). The 2 × 2 TX/RX phased arrays have been packaged with four antennas in low-temperature co-fired ceramic modules through flip-chip bonding and underfill process, and phased-array beam steering have been demonstrated. The entire beam-steering functions are digitally controllable, and individual registers are integrated at each front-end to enable beam steering through the DCI. The four-element TX array results in an output of 5 dBm per channel. The four-element RX array results in an average gain of 25 dB per channel. The four-element array consumes 400 mW in TX and 180 mW in RX and occupies an area of 3.74 mm <sup xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">2</sup> in the TX integrated circuit (IC) and 4.18 mm <sup xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">2</sup> in the RX IC. The beam-steering measurement results show acceptable agreement of the synthesized and measured array pattern.

Performance of the Xenon Feed System on Deep Space One

Propulsion for the Deep Space One (DS1) spacecraft is provided by a xenon ion engine. Xenon is stored in a supercritical state and is delivered as a low-pressure gas to the thruster and two cathodes (called the main cathode and neutralizer) by a xenon feed system (XFS). This mission requires tight constraints on thruster performance, which in turn requires separate and very accurate throttling of the thruster and cathode  ows; the DS1 spacecraft is the Ž rst of its type to utilize a xenon ion engine that can be throttled. Flow is regulated separately to the thruster and cathodes to an accuracy of § 3% using three calibrated  ow control devices that are each fed by a dedicated plenum tank. Bang–bang regulators are used to control the set pressures in the plena. The resulting XFS control algorithms are quite complex. The XFS is controlled by a digital control interface unit and the control algorithm for achieving steady-state xenon  ow is presented. The worst-case error in  ow is shown to be less than § 3%, accounting for random and systematic errors. At the time of writing, the individual components are in excellent health and the performance of the XFS is as expected.

Propossed SMPTE Recommended Practices: Supervisory Protocol for Digital Control Interface

Propossed SMPTE Recommended Practices: Supervisory Protocol for Digital Control Interface

ディジタルテレビの国際規格 ＩＩ ディジタル制御インタフェース規格

ディジタルテレビの国際規格 ＩＩ ディジタル制御インタフェース規格

American National Standard for Television Digital Control Interface—Electrical and Mechanical Characteristics

American National Standard for Television Digital Control Interface—Electrical and Mechanical Characteristics