High power exposure for vehicle accident simulation system
AssigneeAtlas Material Testing Technology GmbH
InventorsPeter March, Bernd Rudolph
Life of this patent
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Abstract
A lighting device (21), comprising a light source (21.1); a power controller (21.2; 21.20) configured to control the supply of electrical power to the light source (21.1) such that upon receipt of a start signal, the supplied electrical power is increased from a first value to a second value, the first value being different from zero and the second value being greater than the first value; and an input (21.4) for supplying the start signal.
Claims14
A lighting device, comprising:
- a light source, wherein the light source comprises a plurality of light-emitting diodes (LEDs) arranged in an overall matrix and a plurality of LED groups, wherein each LED group of the plurality of LED groups comprises a subset of the plurality of LEDs and is formed as a partial matrix of the overall matrix;
- a plurality of power regulators, wherein each LED group of the plurality of LED groups is connected to one power regulator of the plurality of power regulators, and each power regulator of the plurality of power regulators is configured to control a supply of electrical power to the respective LED group such that upon receipt of a start signal, the supplied electrical power is increased from a first value to a second value, the first value being different from zero and the second value being greater than the first value, and wherein each power regulator of the plurality of power regulators is further configured to maintain the supplied electrical power at the second value for a predetermined period of time and to lower the supplied electrical power back to the first value after the predetermined period of time has elapsed, wherein the predetermined period of time is greater than 5 s;
- a light source control connected to each power regulator of the plurality of power regulators and configured to interrogate parameters and operating data from the power regulators, wherein each power regulator of the plurality of power regulators and the light source control are configured to concurrently receive the start signal;
- and
- an input for supplying the start signal.
A method of operating a lighting apparatus for a simulation arrangement for motor vehicle accidents, the lighting apparatus comprising a plurality of lighting devices, each lighting device of the plurality of lighting devices comprising:
- a light source, wherein the light source comprises a plurality of light-emitting diodes (LEDs) arranged in an overall matrix and a plurality of LED groups, wherein each LED group of the plurality of LED groups comprises a subset of the plurality of LEDs and is formed as a partial matrix of the overall matrix,
- a plurality of power regulators, wherein each LED group of the plurality of LED groups is connected to one power regulator of the plurality of power regulators, and
- a light source control connected to each power regulator of the plurality of power regulators and configured to interrogate parameters and operating data from the power regulators,
- wherein the method comprises:
- concurrently supplying each power regulator of the plurality of power regulators and the light source control with a start signal to initiate an increase in electrical power supplied to the LED groups from a first value to a second value,
- increasing the electrical power supplied to the LED groups by the power regulators from the first value to the second value, the first value being different from zero and the second value being greater than the first value;
- and
- maintaining the electrical power at the second value for a predetermined period of time, the predetermined period of time being greater than 5 s.
Dependencies are inferred from the claim text.