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148results about How to "Big economy" patented technology

Multi-level, automated vehicle parking structure

InactiveUS20050095092A1Prior art constructionsReduce disadvantagesParkingsParking spaceVertical axis
A multi-level, automated vehicle parking structure comprising a plurality of horizontal, planar platform assemblies respectively located on a plurality of structure levels through which a central air shaft extends vertically. Each assembly comprises a rotary platform surrounding the shaft that is rotatable about a vertical axis of rotation extending through the shaft. In one embodiment, at least two oppositely directed vehicle elevators vertically and separately displaceable in the shaft have respective, substantially parallel, base centre lines that are off-radial with respect to the axis of rotation. Each rotary platform has a plurality of parking spaces arranged in circular array with respect to the axis of rotation and having respective base centre lines off-radially inclined in the same sense with respect to the axis of rotation Each rotatable platform is rotatably displaceable so as to bring any selected pair of opposite parking spaces into respective communication with the elevators with the central base lines of the elevators being co-directional with the central base lines of the selected parking spaces. The structure further comprises at least one vehicle entry and exit level for selective communication with the elevators for transfer thereto and therefrom of vehicles to be parked and to be retrieved. Motorised dollies transport vehicles between the elevators and the parking spaces on the stationary platform.
Owner:SEGAL +1

System And Method For Controlling A Matrix Of Light Emitting Diodes And Light Provided Therewith

A system and method for controlling a matrix of light emitting diodes (LED) connected to an input line comprises a power converter for connecting to the matrix of LEDs and to the input line therebetween and for receiving from the input line an input current and an input voltage characterized by a shape and a frequency and for providing a direct current (D.C.) output for powering up the LEDs, yielding an operating current through the LEDs. The power converter includes a first current sensor for sensing the input current and a second current sensor for sensing the operating current. The system further comprises a controller for connecting to both the input line and to the power converter. The controller includes a voltage sensor for sensing the input voltage and a pre-regulator i) for receiving the operating current, the input current and the input voltage, ii) for biasing the operating current towards a target current value, and iii) for regulating the power converter to cause the input current to follow the shape and frequency of the input voltage, yielding a unity power factor and minimizing the input current harmonic distortion. The present method and system allows maximizing the energy savings, controlling current flowing in the diodes so as to obtain the maximum flux of light with the minimum energy and also allows meeting all safety, EMI, reliability and robustness requirements.
Owner:ELUMEN LIGHTING NETWORKS
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