Captive balloon pressure difference monitoring system

Abstract

The embodiment of the invention provides a captive balloon differential pressure monitoring system. The captive balloon differential pressure monitoring system comprises a pressure difference acquisition terminal and a pressure difference monitoring device. The pressure difference acquisition terminal is installed on a target captive balloon and used for acquiring a pressure difference value of the target captive balloon and sending the pressure difference value to the pressure difference monitoring device through radio, and the pressure difference value is a difference value of an internal air pressure and an external air pressure of the target captive balloon; and the pressure difference monitoring device is used for receiving and displaying the pressure difference value. According to the captive balloon pressure difference monitoring system, real-time acquisition and monitoring of the captive balloon pressure difference can be performed; the pressure difference acquisition terminalis light in weight, small in size and low in power consumption, and the application range of the captive balloon is expanded.

Description

technical field [0001] The invention relates to the technical field of automatic control, in particular to a pressure difference monitoring system for a tethered balloon. Background technique [0002] A tethered balloon is an unmanned aerostat that relies on filling helium in the airbag to generate buoyancy and stays in a predetermined position in the air for a long time through a tethered cable. The lift-off altitude, outside temperature and wind speed will directly affect the difference between the air pressure of the tethered balloon and the outside atmospheric pressure. In order to ensure flight safety, operators of tethered balloons need to know the pressure difference in real time. [0003] In the prior art, the commonly used differential pressure monitoring method is to install an optical fiber transmitter on the tethered balloon, convert the electrical signal of the differential pressure data collected by the differential pressure sensor into an optical signal, and ...

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Problems solved by technology

[0004] However, the solutions in the prior art need to install a complex and heavy optical transceiver on the tethered balloon, and the power consumption is relatively large, requiring an external large-capacity power supply or battery power supply, which increases the body load weight of the tethered balloon and reduces the system load. The carrying capacity of the tethered balloon, especially for the small-volume tethered balloon, is very limited and does not have the ability to carry an optical transceiver. Therefore, the application scope of the tethered ball is greatly limited

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