Multiple fixed-volume balloons with high-altitude recovery capability

Abstract

This invention relates to a multi-volume balloon with a high-altitude recovery function, comprising: a main balloon, an inflation / deflation device, a carrier, a right auxiliary balloon, and a left auxiliary balloon. The inflation / deflation device is connected below the main balloon, and the carrier is connected below the inflation / deflation device. The right and left auxiliary balloons are located on opposite sides of the main balloon and are respectively connected downwards to opposite sides of the carrier. The main balloon, the right auxiliary balloon, and the left auxiliary balloon are all fixed-volume balloons made of an airtight, non-elastic material. Before takeoff, the invention determines the flight altitude for maintaining a level float by inflating the main balloon, the right auxiliary balloon, and the left auxiliary balloon. A control signal is output from a first control module within the carrier to control the opening of a deflation valve in the inflation / deflation device, allowing gas inside the main balloon to flow out through the deflation valve. This gradually reduces the buoyancy of the invention. When the buoyancy is less than the weight, the invention gradually decreases its flight altitude and finally lands on the ground for recovery.

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