Automatic Control System Switching Roadway Lighting

Lack of attention to the information officer street lights, cause is not exactly the timewhen the blame lights street lighting street - the street in this city protocol. And whenit was already dark, the lights had not lit, so it can harm the users of the road. Werecommend that when it got bright lights - the lights switched off late, so muchelectricity is wasted with nothing - nothing.Given the problems above, the automatic switching is required that can control all thelights - the existing lighting on the road - the road protocol. In this case, the authoruses a light sensor (LDR) as an automatic controller roadway lighting that uses lightintensity to give a signal - a signal to other control components

Automatic Electrical Control Efficiency with Atmega8 Sebagai Indikator Pembayaran Daya Listrik Kamar Kos

The aims of the research are to design Automatic Electrical Control Efficiencywith ATMega8 as an indicator of payment and power distribution of rooms in a boardinghouse, and to reveal the effect of Automatic Electrical Control Efficiency withATMega8 as an indicator of electricity payments in a boarding house. The data obtainedfrom the survey and analysis of the condition in the field are 1) on the averagethe electricity cost is determined by the owner of the boarding house and additionalcost is given to every electronic equipment brought to the boarding house, 2) on theaverage the electricity cost for each room is 32,125.00 rupiahs with a total power ofabout 746 Watts, 3) short circuits often happen and affect other rooms, and 4) it ismostly recommended that the electricity payment is based on the power used in therooms. The result of testing the Automatic Electrical Control Efficiency with ATMega8is appropriate to implement in the boarding houses with a relatively low energymanagement. Besides, this implementation will be very helpful as a reference for themonthly transparent electricity payment based on the amount of power used.Automatic Electrical Control Efficiency with ATMega8 works by limiting the powerused in each room and the safety in each room

Automatic focus control for facsimile cameras

An electronic circuit for controlling the focus of facsimile cameras is described. The circuit consists of balanced a.c. amplifiers, two square law function generators, and a differential amplifier and power drive. The invention includes a method for maintaining the imaging sensor at the expected location of the focal plane as the facsimile camera scans a scene or terrain. A block diagram of the electronic circuitry is provided

Low distortion automatic phase control circuit

Circuit for generation and demodulation of quadrature double side band signals in frequency division multiplexing system is described. Circuit is designed to produce low distortion automatic phase control. Illustration of circuit and components is included

Electrometer has automatic zero bias control

Zero biasing circuit in a vibrating reed type electrometer counterbalances residual potential. It charges a capacitor to the residual potential and connects that capacitor in series with the vibrating reed so that the voltages cancel. This enables the electrometer to read zero output potential in the absence of an input current

Error-Correcting Codes for Automatic Control

Systems with automatic feedback control may consist of several remote devices, connected only by unreliable communication channels. It is necessary in these conditions to have a method for accurate, real-time state estimation in the presence of channel noise. This problem is addressed, for the case of polynomial-growth-rate state spaces, through a new type of error-correcting code that is online and computationally efficient. This solution establishes a constructive analog, for some applications in estimation and control, of the Shannon coding theorem

Low distortion automatic phase control circuit

A voltage controlled phase shifter is rendered substantially harmonic distortion free over a large dynamic input range by employing two oppositely poled, equally biased varactor diodes as the voltage controlled elements which adjust the phase shift. Control voltages which affect the bias of both diodes equally are used to adjust the phase shift without increasing distortion. A feedback stabilized phase shifter is rendered substantially frequency independent by employing a phase detector to control the phase shift of the voltage controlled phase shifter

Hybrid control for low-regular nonlinear systems: application to an embedded control for an electric vehicle

This note presents an embedded automatic control strategy for a low consumption vehicle equipped with an "on/off" engine. The main difficulties are the hybrid nature of the dynamics, the non smoothness of the dynamics of each mode, the uncertain environment, the fast changing dynamics, and low cost/ low consumption constraints for the control device. Human drivers of such vehicles frequently use an oscillating strategy, letting the velocity evolve between fixed lower and upper bounds. We present a general justification of this very simple and efficient strategy, that happens to be optimal for autonomous dynamics, robust and easily adaptable for real-time control strategy. Effective implementation in a competition prototype involved in low-consumption races shows that automatic velocity control achieves performances comparable with the results of trained human drivers. Major advantages of automatic control are improved robustness and safety. The total average power consumption for the control device is less than 10 mW