초록 ▼

A method comprises: launching observation means configured to observe upper air environment immediately before launching an airship to acquire ambient air data on the actual conditions of the upper ambient air including altitude, pressure, wind direction, wind speed and temperature; determining an a

A method comprises: launching observation means configured to observe upper air environment immediately before launching an airship to acquire ambient air data on the actual conditions of the upper ambient air including altitude, pressure, wind direction, wind speed and temperature; determining an ascension profile for the airship by simulation using the ambient air data on the actual conditions of the ambient air; determining an initial quantity of Helium gas conforming to the actual conditions of the ambient air; and adjusting the quantity of Helium gas in the Helium room to the initial quantity of Helium gas to set an initial buoyancy. The method sets hull parameters for the hull of the airship to provide an ascension profile conforming to the actual conditions of the ambient air.

대표청구항 ▼

1. A hull parameter setting method of setting parameters of a hull of an airship provided with a Helium room and an air room separate from said Helium room, comprising:launching observation means configured to observe upper ambient air environment immediately before launching said airship in order t

1. A hull parameter setting method of setting parameters of a hull of an airship provided with a Helium room and an air room separate from said Helium room, comprising:launching observation means configured to observe upper ambient air environment immediately before launching said airship in order to acquire ambient air data on actual conditions of upper ambient air including altitude, pressure, wind direction, wind speed and temperature;determining an ascension profile for said airship by a simulation using said ambient air data on said actual conditions of said ambient air;determining an initial quantity of a Helium gas in said Helium room of said airship conforming to said actual conditions of said ambient air; andadjusting a quantity of said Helium gas contained in said Helium room to said initial quantity of said Helium gas to set an initial buoyancy. 2. The hull parameter setting method according to claim 1 further comprising:observing changes in said upper ambient air with a meteorological observation instrument in a period between a completion of adjustment of said initial quantity of said Helium gas and a launching of said airship after acquisition of said ambient air data on said actual conditions of said ambient air using said observation means;correcting said ascension profile for said airship by a simulation using both said ambient air data on said actual conditions of said ambient air and a data on said upper ambient air obtained by observing said changes in said upper ambient air with said meteorological observation instrument;determining an initial quantity of Helium gas in said Helium room conforming to latest conditions of said upper ambient air; andadjusting said quantity of Helium gas in said Helium room to said initial quantity of Helium gas to set said initial buoyancy. 3. The hull parameter setting method according to claim 1, wherein said observation means includes a GPS sonde. 4. A hull parameter setting system for setting hull parameters for a hull of an airship comprising:an observation system including observation means configured to observe upper air environment that is launched in order to obtain ambient air data on actual conditions of an upper ambient air including altitude, pressure, wind direction, wind speed and temperature;a simulator installed on a ground to determine an ascension profile for said airship by a simulation using said ambient air data on said actual conditions of said upper ambient air provided by said observation system and to determine an initial quantity of Helium gas in said Helium room conforming to said actual conditions of said upper ambient air; anda Helium gas controller installed on said ground or said hull to adjust a quantity of Helium gas in said Helium room according to said initial quantity of Helium gas determined by said simulator. 5. The hull parameter setting system according to claim 4 further comprising a meteorological observation system including a meteorological observation instrument for observing changes in said upper ambient air in a period between a completion of adjustment of said quantity of Helium gas and a launching of said airship after said acquisition of said ambient air data on said actual conditions of ambient air and sending a data on said upper ambient air obtained by said meteorological observation system to said simulator. 6. The hull parameter setting system according to claim 4, wherein said observation means includes a GPS sonde. 7. An ascension rate adjusting method adapted to be used to adjust an ascension rate of an airship of which hull parameters are set by said hull parameter setting method as defined in claim 1, wherein said ascension rate at which said airship ascends is adjusted according to changes in actual conditions of ambient air by adjusting a number of air relief valves to be operated among a plurality of air relief valves of said airship or adjusting characteristics of said air relief valves to adjust air discharge rate. 8. The ascension rate adjusting method according to claim 7, wherein said observation means includes a GPS sonde. 9. An ascension rate adjusting method adapted to be used to adjust an ascension rate of an airship of which hull parameters have been set by said hull parameter setting method as defined in claim 1, wherein said airship is loaded with a ballast if said airship has a spare takeoff weight, and said ballast is thrown out when said ascension rate of said airship decreases during ascension to increase a buoyancy of said airship and to increase an ascending ability of said airship. 10. The ascension rate adjusting method according to claim 9, wherein said ballast includes water. 11. The ascension rate adjusting method according to claim 9, wherein said observation means includes a GPS sonde.