Wind parameter indication device and method for providing an indication of wind speed and wind direction. The device is deployed along an aerial trajectory toward a ground surface, such as after being ejected from an aircraft in flight. The device includes an anemometer, an altimeter, a compass, a p
Wind parameter indication device and method for providing an indication of wind speed and wind direction. The device is deployed along an aerial trajectory toward a ground surface, such as after being ejected from an aircraft in flight. The device includes an anemometer, an altimeter, a compass, a processor and a transmitter. The anemometer obtains local wind speed and local wind direction measurements along the trajectory. The altimeter obtains altitude measurements along the trajectory. The compass obtains direction measurements along the trajectory. The device may further include an accelerometer, for obtaining acceleration measurements along the trajectory. The processor determines a wind speed value and a wind direction value associated with a predetermined altitude of the device. The transmitter transmits the determined wind speed value and wind direction value to a remotely located receiver. The device may further include a stabilizing decelerator to stabilize and decelerate the device along the trajectory.
대표청구항▼
1. A wind parameter indication device for providing wind speed and wind direction to a remotely located receiver, wherein said device is ejected in midair to fall along an aerial trajectory from a landing approach height until a ground surface, wherein said device operates independently of external
1. A wind parameter indication device for providing wind speed and wind direction to a remotely located receiver, wherein said device is ejected in midair to fall along an aerial trajectory from a landing approach height until a ground surface, wherein said device operates independently of external data sources, said device comprising: a compass, operative to continuously obtain direction measurements along said trajectory;an anemometer, operative to continuously obtain local wind speed and local wind direction measurements along said trajectory using the direction measurements obtained by said compass;an altimeter, operative to continuously obtain altitude measurements along said trajectory;an accelerometer, operative to obtain acceleration measurements along said trajectory;a processor, coupled with said anemometer, with said altimeter, with said accelerometer, and with said compass, said processor operative to determine the altitude measurement corresponding to at least one predetermined altitude of said device relative to said ground surface, after said device has reached said ground surface, and then to determine a wind speed value and a wind direction value associated with said at least one predetermined altitude based on the obtained measurements; anda transmitter, coupled with said processor, said transmitter operative to transmit said wind speed value and said wind direction value associated with said at least one predetermined altitude to said remotely located receiver. 2. The wind parameter indication device of claim 1, wherein said device is ejected from an aircraft while in flight. 3. The wind parameter indication device of claim 1, further comprising a housing, enclosing said anemometer, said altimeter, said accelerometer, said compass, said processor and said transmitter. 4. The wind parameter indication device of claim 3, further comprising a stabilizing decelerator, coupled with said housing, said stabilizing decelerator operative to stabilize and decelerate said device along said trajectory. 5. The wind parameter indication device of claim 1, wherein said anemometer comprises a propeller, operative for measuring wind speed, and a wing, operative for aligning along said wind direction. 6. The wind parameter indication device of claim 1, wherein said anemometer is selected from the group consisting of: a wind vane;a propeller anemometer;a windsock;a pitot tube;a tube anemometer;a plate anemometer;a sonic anemometer;a laser Doppler anemometer;a ping-pong ball anemometer;a smoke grenade; andany combination thereof. 7. The wind parameter indication device of claim 1, wherein said transmitter transmits a plurality of wind speed values and a plurality of wind direction values to said receiver. 8. The wind parameter indication device of claim 7, wherein said transmitter transmits data continuously to said receiver. 9. The wind parameter indication device of claim 1, wherein said transmitter transmits said wind speed value and said wind direction value to said receiver after said device has reached said ground surface. 10. The wind parameter indication device of claim 1, further comprising a timer, operative to delay deployment of selected components of said device. 11. The wind parameter indication device of claim 1, further comprising a clock, operative to establish a timestamp for said measurements. 12. The wind parameter indication device of claim 1, further comprising a measurement instrument selected from the group consisting of: a thermometer;a barometer;a global positioning system (GPS);a radiation detector;a smoke detector;a smoke density meter;a device for detecting or measuring chemical or biological toxic agents; andany combination thereof. 13. The wind parameter indication device of claim 1, further comprising a global positioning system (GPS), operative to determine location coordinates of said device, and to compensate or correct said local wind speed and local wind direction measurements obtained by said anemometer, based on deviation of a downward trajectory of said device from an ideal vertical path. 14. The wind parameter indication device of claim 1, further comprising a light source, operative to facilitate locating said device upon landing. 15. A wind parameter indication system, comprising; at least one wind parameter indication device as in claim 1, andat least one receiver unit, operative to receive said wind speed value and said wind direction value associated with said at least one predetermined altitude from said device. 16. The wind parameter indication system of claim 15, wherein said receiver unit further comprises a display, operative to provide a visual indication of said wind speed value and said wind direction value. 17. The wind parameter indication system of claim 15, wherein said receiver unit further comprises a speaker, operative to provide an audible indication of said wind speed value and said wind direction value. 18. The wind parameter indication system of claim 15, wherein said wind parameter indication device is deployed from an aircraft when approaching a desired landing point, and wherein said receiver unit is onboard said aircraft, said wind speed value and said wind direction value being utilized to assist the landing of said aircraft. 19. The wind parameter indication system of claim 18, wherein said aircraft is a helicopter. 20. A method for providing an indication of wind speed and wind direction to a remotely located receiver, the method comprising the procedures of; ejecting a wind parameter indication device in midair to fall along an aerial trajectory from a landing approach height until a ground surface, wherein said device operates independently of external data sources, said device comprising: an anemometer, an altimeter, a compass, an accelerometer, a transmitter, and a processor;continuously obtaining direction measurements along said trajectory, using said compass;continuously obtaining local wind speed and local wind direction measurements along said trajectory using the direction measurements obtained by said compass, using said anemometer;continuously obtaining altitude measurements along said trajectory, using said altimeter;obtaining acceleration measurements along said trajectory, using said accelerometer;determining the altitude measurement corresponding to at least one predetermined altitude of said device relative to said ground surface, after said device has reached said ground surface;determining a wind speed value and a wind direction value associated with said at least one predetermined altitude, based on the obtained measurements, using said processor; andtransmitting said wind speed value and said wind direction value associated with said at least one predetermined altitude to said remotely located receiver, using said transmitter.
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