CN111122045A - Tethered balloon differential pressure monitoring system - Google Patents

Tethered balloon differential pressure monitoring system Download PDF

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Publication number
CN111122045A
CN111122045A CN201911319924.7A CN201911319924A CN111122045A CN 111122045 A CN111122045 A CN 111122045A CN 201911319924 A CN201911319924 A CN 201911319924A CN 111122045 A CN111122045 A CN 111122045A
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CN
China
Prior art keywords
pressure
monitoring
differential pressure
differential
control unit
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201911319924.7A
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Chinese (zh)
Inventor
郝勇
栗思
张泰华
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Academy of Opto Electronics of CAS
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Academy of Opto Electronics of CAS
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Academy of Opto Electronics of CAS filed Critical Academy of Opto Electronics of CAS
Priority to CN201911319924.7A priority Critical patent/CN111122045A/en
Publication of CN111122045A publication Critical patent/CN111122045A/en
Pending legal-status Critical Current

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    • GPHYSICS
    • G01MEASURING; TESTING
    • G01LMEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
    • G01L9/00Measuring steady of quasi-steady pressure of fluid or fluent solid material by electric or magnetic pressure-sensitive elements; Transmitting or indicating the displacement of mechanical pressure-sensitive elements, used to measure the steady or quasi-steady pressure of a fluid or fluent solid material, by electric or magnetic means

Abstract

The embodiment of the invention provides a captive balloon differential pressure monitoring system, which comprises: the pressure difference monitoring device comprises a pressure difference acquisition terminal and a pressure difference monitoring device; the pressure difference acquisition terminal is arranged on a target captive balloon and used for acquiring a pressure difference value of the target captive balloon and transmitting the pressure difference value to the pressure difference monitoring device through radio, wherein the pressure difference value is the difference value between the internal air pressure and the external air pressure of the target captive balloon; the pressure difference monitoring device is used for receiving and displaying the pressure difference value. The captive balloon differential pressure monitoring system provided by the embodiment of the invention can be used for acquiring and monitoring the captive balloon differential pressure in real time, and the differential pressure acquisition terminal is light in weight, small in size and low in power consumption, so that the application range of captive balloons is expanded.

Description

Tethered balloon differential pressure monitoring system
Technical Field
The invention relates to the technical field of automatic control, in particular to a tethered balloon differential pressure monitoring system.
Background
The captive balloon is an unmanned floating aircraft which generates buoyancy lift force by filling helium gas into an air bag and stays at a preset position in the air for a long time through a captive cable. The difference between the balloon pressure of the captive balloon and the external atmospheric pressure is directly influenced by the levitation height, the external temperature and the wind speed. To ensure flight safety, the captive balloon operator needs to master this differential pressure value in real time.
In the prior art, a commonly used pressure difference monitoring means is to install an optical fiber transmitter on a captive balloon, convert a pressure difference data electrical signal acquired by a pressure difference sensor into an optical signal, transmit the pressure difference data in a wired manner through an optical fiber inside a tethered balloon tether, and decode the optical signal by a ground optical end receiver.
However, in the scheme in the prior art, a complex and heavy optical transceiver needs to be installed on the captive balloon, the power consumption is high, an external high-capacity power supply or a battery needs to be used for supplying power, the body load weight of the captive balloon is increased, the carrying capacity of the captive balloon is reduced, the carrying capacity of the captive balloon is particularly limited for small-size captive balloons, and the capacity of carrying the optical transceiver is not available, so that the application range of the captive balloon is greatly limited.
Disclosure of Invention
The embodiment of the invention provides a tethered balloon differential pressure monitoring system, which is used for solving the technical problems in the prior art.
In order to solve the above technical problem, in one aspect, an embodiment of the present invention provides a captive balloon differential pressure monitoring system, including:
the pressure difference monitoring device comprises a pressure difference acquisition terminal and a pressure difference monitoring device;
the pressure difference acquisition terminal is arranged on a target captive balloon and used for acquiring a pressure difference value of the target captive balloon and transmitting the pressure difference value to the pressure difference monitoring device through radio, wherein the pressure difference value is the difference value between the internal air pressure and the external air pressure of the target captive balloon;
the pressure difference monitoring device is used for receiving and displaying the pressure difference value.
Further, the differential pressure acquisition terminal comprises a first pressure sensor, a second pressure sensor, a first micro control unit, a first wireless communication module and a first power supply module;
the first power supply module is used for respectively supplying power to the first pressure sensor, the second pressure sensor, the first micro control unit and the first wireless communication module;
the first pressure sensor, the second pressure sensor and the first wireless communication module are respectively connected with the first micro control unit;
the first pressure sensor is used for acquiring the air pressure value inside the target captive balloon;
the second pressure sensor is used for acquiring an air pressure value outside the target captive balloon;
the first micro-control unit is used for calculating the difference value between the internal air pressure and the external air pressure of the target captive balloon;
the first wireless communication module is configured to transmit the differential pressure value to the differential pressure monitoring device.
Further, the first micro control unit is further configured to perform energy saving control, and when the differential pressure value does not need to be collected, the first power supply module is controlled to stop supplying power to the first pressure sensor, the second pressure sensor and the first wireless communication module.
Further, the first power supply module comprises a lithium battery and a voltage transformation circuit;
after the lithium battery is connected to the voltage transformation circuit, various different voltage values are output.
Further, the lithium battery is a 4.2V single lithium battery.
Further, the pressure difference monitoring device comprises a second wireless communication module, a second micro control unit, a display screen and a second power supply module;
the second power supply module is used for supplying power to the second wireless communication module, the second micro control unit and the display screen respectively;
the second wireless communication module and the display screen are respectively connected with the second micro control unit;
the second wireless communication module is used for receiving the differential pressure value sent by the differential pressure acquisition terminal;
the second micro control unit is used for sending the pressure difference value to the display screen for displaying.
Further, the display screen is an organic light emitting diode display screen.
Further, the second power supply module comprises a lithium battery and a transformation circuit;
after the lithium battery is connected to the voltage transformation circuit, various different voltage values are output.
Further, the lithium battery is a 4.2V single lithium battery.
Further, the differential pressure monitoring device further comprises a memory;
the memory is connected with the second micro control unit;
the memory is used for storing the differential pressure value.
The captive balloon differential pressure monitoring system provided by the embodiment of the invention can be used for acquiring and monitoring the captive balloon differential pressure in real time, and the differential pressure acquisition terminal is light in weight, small in size and low in power consumption, so that the application range of captive balloons is expanded.
Drawings
FIG. 1 is a schematic view of a captive balloon differential pressure monitoring system according to an embodiment of the present invention;
FIG. 2 is a schematic diagram of a differential pressure acquisition terminal according to an embodiment of the present invention;
fig. 3 is a schematic diagram of a differential pressure monitoring apparatus according to an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the present invention without making any creative effort, shall fall within the protection scope of the present invention.
Fig. 1 is a schematic view of a captive balloon differential pressure monitoring system according to an embodiment of the present invention, and as shown in fig. 1, the captive balloon differential pressure monitoring system according to an embodiment of the present invention includes: the system comprises a differential pressure acquisition terminal 1 and a differential pressure monitoring device 2;
the pressure difference acquisition terminal 1 is mounted on a target captive balloon and used for acquiring a pressure difference value of the target captive balloon and transmitting the pressure difference value to the pressure difference monitoring device 2 through radio, wherein the pressure difference value is a difference value between the internal air pressure and the external air pressure of the target captive balloon;
the pressure difference monitoring device 2 is used for receiving and displaying the pressure difference value.
Specifically, the embodiment of the invention provides an integrated lightweight design scheme for acquiring the pressure difference of a captive balloon and wirelessly transmitting the pressure difference data, the pressure difference data is acquired and calibrated through a pressure difference acquisition terminal 1 and is converted into a digital signal, and the data is transmitted to a pressure difference monitoring device 2 on the ground through a wireless communication module of the device. The differential pressure monitoring device 2 receives the differential pressure data and displays the differential pressure data.
The captive balloon differential pressure monitoring system provided by the embodiment of the invention can be used for acquiring and monitoring the captive balloon differential pressure in real time, and the differential pressure acquisition terminal is light in weight, small in size and low in power consumption, so that the application range of captive balloons is expanded.
Based on any one of the above embodiments, further, the differential pressure acquisition terminal includes a first pressure sensor, a second pressure sensor, a first Micro Control Unit (MCU), a first wireless communication module, and a first power supply module;
the first power supply module is used for respectively supplying power to the first pressure sensor, the second pressure sensor, the first micro control unit and the first wireless communication module;
the first pressure sensor, the second pressure sensor and the first wireless communication module are respectively connected with the first micro control unit;
the first pressure sensor is used for acquiring the air pressure value inside the target captive balloon;
the second pressure sensor is used for acquiring an air pressure value outside the target captive balloon;
the first micro-control unit is used for calculating the difference value between the internal air pressure and the external air pressure of the target captive balloon;
the first wireless communication module is configured to transmit the differential pressure value to the differential pressure monitoring device.
Specifically, fig. 2 is a schematic view of a differential pressure acquisition terminal according to an embodiment of the present invention, and as shown in fig. 2, in an embodiment of the present invention, the differential pressure acquisition terminal includes a first pressure sensor, a second pressure sensor, a first micro control unit, a first wireless communication module, and a first power supply module.
The first power supply module is used for supplying power to the first pressure sensor, the second pressure sensor, the first micro control unit and the first wireless communication module respectively.
The first pressure sensor, the second pressure sensor and the first wireless communication module are respectively connected with the first micro control unit.
The first pressure sensor is used for collecting an air pressure value in the target captive balloon and converting the air pressure value data in the target captive balloon into a corresponding analog electric signal.
The second pressure sensor is used for collecting an air pressure value outside the target captive balloon and converting the air pressure value data outside the target captive balloon into a corresponding analog electric signal.
The first micro control unit is used for calculating the difference value between the internal air pressure and the external air pressure of the target captive balloon, carrying out AD acquisition on the differential pressure analog electric signal, converting the differential pressure analog electric signal into a data signal, and assembling the captive balloon differential pressure data into a data frame format which can be identified by the data wireless communication module. The micro control unit comprises a control singlechip and peripheral equipment.
The first wireless communication module is used for converting the data frame carrying the differential pressure value into a corresponding radio signal and sending the radio signal to the differential pressure monitoring device.
The captive balloon differential pressure monitoring system provided by the embodiment of the invention can be used for acquiring and monitoring the captive balloon differential pressure in real time, and the differential pressure acquisition terminal is light in weight, small in size and low in power consumption, so that the application range of captive balloons is expanded.
Based on any one of the above embodiments, further, the first micro control unit is further configured to perform energy saving control, and when the differential pressure value does not need to be collected, control the first power supply module to stop supplying power to the first pressure sensor, the second pressure sensor, and the first wireless communication module.
Specifically, in the embodiment of the present invention, the first micro control unit is further configured to perform energy saving control, and when data does not need to be collected and transmitted, the power supply of each module is cut off, the micro control unit also enters a sleep mode, and after a collection period is reached, the single chip microcomputer automatically wakes up, and supplies power to each module according to the minimum time required for collecting and transmitting differential pressure data, thereby performing energy saving control.
The captive balloon differential pressure monitoring system provided by the embodiment of the invention can be used for acquiring and monitoring the captive balloon differential pressure in real time, and the differential pressure acquisition terminal is light in weight, small in size and low in power consumption, so that the application range of captive balloons is expanded.
Based on any one of the above embodiments, further, the first power supply module includes a lithium battery and a voltage transformation circuit;
after the lithium battery is connected to the voltage transformation circuit, various different voltage values are output.
Specifically, in the embodiment of the present invention, a 4.2V single lithium battery is used for supplying power, and the voltage of the lithium battery needs to be converted into the voltage required by each module to supply power to each module. The voltage of the lithium battery is converted into the voltage required by each module through the voltage transformation circuit connected with the lithium battery, and the lithium battery outputs various different voltage values after being connected into the voltage transformation circuit.
The captive balloon differential pressure monitoring system provided by the embodiment of the invention can be used for acquiring and monitoring the captive balloon differential pressure in real time, and the differential pressure acquisition terminal is light in weight, small in size and low in power consumption, so that the application range of captive balloons is expanded.
Based on any one of the above embodiments, further, the pressure difference monitoring device includes a second wireless communication module, a second micro control unit, a display screen, and a second power supply module;
the second power supply module is used for supplying power to the second wireless communication module, the second micro control unit and the display screen respectively;
the second wireless communication module and the display screen are respectively connected with the second micro control unit;
the second wireless communication module is used for receiving the differential pressure value sent by the differential pressure acquisition terminal;
the second micro control unit is used for sending the pressure difference value to the display screen for displaying.
Specifically, fig. 3 is a schematic view of a differential pressure monitoring apparatus according to an embodiment of the present invention, and as shown in fig. 3, in the embodiment of the present invention, the differential pressure monitoring apparatus includes a second wireless communication module, a second micro control unit, a display screen, and a second power supply module.
The second power supply module is used for supplying power to the second wireless communication module, the second micro control unit and the display screen respectively.
The second wireless communication module and the display screen are respectively connected with the second micro control unit.
The second wireless communication module is used for receiving the radio signal carrying the differential pressure value, converting the received radio signal into a digital signal and sending the digital signal to the second micro control unit.
And the second micro control unit is used for receiving the differential pressure digital signal converted by the second wireless communication module, decoding the differential pressure digital signal and sending the decoded differential pressure digital signal to the display screen.
The display screen is used for displaying the differential pressure value and realizing the function of man-machine interaction.
The captive balloon differential pressure monitoring system provided by the embodiment of the invention can be used for acquiring and monitoring the captive balloon differential pressure in real time, and the differential pressure acquisition terminal is light in weight, small in size and low in power consumption, so that the application range of captive balloons is expanded.
Based on any one of the above embodiments, further, the display screen is an organic light emitting diode display screen.
Specifically, in the embodiment of the invention, the display screen adopts an Organic Light Emitting Diode (OLED) display screen to reduce energy consumption.
The captive balloon differential pressure monitoring system provided by the embodiment of the invention can be used for acquiring and monitoring the captive balloon differential pressure in real time, and the differential pressure acquisition terminal is light in weight, small in size and low in power consumption, so that the application range of captive balloons is expanded.
Based on any one of the above embodiments, further, the second power supply module includes a lithium battery and a voltage transformation circuit;
after the lithium battery is connected to the voltage transformation circuit, various different voltage values are output.
Specifically, in the embodiment of the present invention, a 4.2V single lithium battery is used for supplying power, and the voltage of the lithium battery needs to be converted into the voltage required by each module to supply power to each module. The voltage of the lithium battery is converted into the voltage required by each module through the voltage transformation circuit connected with the lithium battery, and the lithium battery outputs various different voltage values after being connected into the voltage transformation circuit.
The captive balloon differential pressure monitoring system provided by the embodiment of the invention can be used for acquiring and monitoring the captive balloon differential pressure in real time, and the differential pressure acquisition terminal is light in weight, small in size and low in power consumption, so that the application range of captive balloons is expanded.
According to any one of the above embodiments, further, the differential pressure monitoring device further includes a memory;
the memory is connected with the second micro control unit;
the memory is used for storing the differential pressure value.
Specifically, in the embodiment of the present invention, the differential pressure monitoring device further includes a memory, and the memory is connected with the second micro control unit. The memory is used for storing the received differential pressure value, so that a user can conveniently view historical data.
The captive balloon differential pressure monitoring system provided by the embodiment of the invention can be used for acquiring and monitoring the captive balloon differential pressure in real time, and the differential pressure acquisition terminal is light in weight, small in size and low in power consumption, so that the application range of captive balloons is expanded.
In addition, the captive balloon differential pressure monitoring system is suitable for the working environment of the captive balloon and is suitable for each process of levitation, flight and landing of the captive balloon.
The captive balloon pressure difference monitoring system can accurately acquire captive balloon pressure difference, has small wireless data transmission delay, and can realize real-time transmission and display.
The power consumption of a pressure difference acquisition terminal of the captive balloon pressure difference monitoring system is reduced as much as possible, and when data transmission and pressure difference acquisition are not carried out, the balloon-mounted device enters a sleep mode.
The system can be used for acquiring and monitoring the captive balloon differential pressure in real time.
The captive balloon differential pressure acquisition terminal is light in weight, small in size and low in power consumption, the weight of a circuit part is smaller than 15g, the size of the circuit part is smaller than a cylinder with the diameter of 50mm and the height of 50mm, the average power consumption is smaller than 5mAh, and the captive balloon differential pressure acquisition terminal can continuously work for more than 15 days by adopting a matched battery.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.

Claims (10)

1. A captive balloon differential pressure monitoring system, comprising:
the pressure difference monitoring device comprises a pressure difference acquisition terminal and a pressure difference monitoring device;
the pressure difference acquisition terminal is arranged on a target captive balloon and used for acquiring a pressure difference value of the target captive balloon and transmitting the pressure difference value to the pressure difference monitoring device through radio, wherein the pressure difference value is the difference value between the internal air pressure and the external air pressure of the target captive balloon;
the pressure difference monitoring device is used for receiving and displaying the pressure difference value.
2. The tethered balloon differential pressure monitoring system of claim 1, wherein the differential pressure collection terminal comprises a first pressure sensor, a second pressure sensor, a first micro-control unit, a first wireless communication module, and a first power module;
the first power supply module is used for respectively supplying power to the first pressure sensor, the second pressure sensor, the first micro control unit and the first wireless communication module;
the first pressure sensor, the second pressure sensor and the first wireless communication module are respectively connected with the first micro control unit;
the first pressure sensor is used for acquiring the air pressure value inside the target captive balloon;
the second pressure sensor is used for acquiring an air pressure value outside the target captive balloon;
the first micro-control unit is used for calculating the difference value between the internal air pressure and the external air pressure of the target captive balloon;
the first wireless communication module is configured to transmit the differential pressure value to the differential pressure monitoring device.
3. The tethered balloon differential pressure monitoring system of claim 2, wherein the first micro-control unit is further configured to perform an energy conservation control to control the first power module to stop supplying power to the first pressure sensor, the second pressure sensor, and the first wireless communication module when the pressure differential value does not need to be collected.
4. The tethered balloon differential pressure monitoring system of claim 2 or 3, wherein the first power module comprises a lithium battery and a voltage transformation circuit;
after the lithium battery is connected to the voltage transformation circuit, various different voltage values are output.
5. The captive balloon pressure differential monitoring system of claim 4, wherein the lithium battery is a 4.2V cell lithium battery.
6. The tethered balloon differential pressure monitoring system of claim 1, wherein the differential pressure monitoring device comprises a second wireless communication module, a second micro-control unit, a display screen, and a second power module;
the second power supply module is used for supplying power to the second wireless communication module, the second micro control unit and the display screen respectively;
the second wireless communication module and the display screen are respectively connected with the second micro control unit;
the second wireless communication module is used for receiving the differential pressure value sent by the differential pressure acquisition terminal;
the second micro control unit is used for sending the pressure difference value to the display screen for displaying.
7. The tethered balloon pressure differential monitoring system of claim 6, wherein the display screen is an organic light emitting diode display screen.
8. The tethered balloon differential pressure monitoring system of claim 6 or 7, wherein the second power module comprises a lithium battery and a voltage transformation circuit;
after the lithium battery is connected to the voltage transformation circuit, various different voltage values are output.
9. The captive balloon pressure differential monitoring system of claim 8, wherein the lithium battery is a 4.2V cell lithium battery.
10. The tethered balloon differential pressure monitoring system of claim 6, wherein the differential pressure monitoring device further comprises a memory;
the memory is connected with the second micro control unit;
the memory is used for storing the differential pressure value.
CN201911319924.7A 2019-12-19 2019-12-19 Tethered balloon differential pressure monitoring system Pending CN111122045A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201911319924.7A CN111122045A (en) 2019-12-19 2019-12-19 Tethered balloon differential pressure monitoring system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201911319924.7A CN111122045A (en) 2019-12-19 2019-12-19 Tethered balloon differential pressure monitoring system

Publications (1)

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CN111122045A true CN111122045A (en) 2020-05-08

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111824385A (en) * 2020-06-15 2020-10-27 中国科学院空天信息创新研究院 Air pressure switch, pressure maintaining device and high-altitude balloon restraint releasing device

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CN209542878U (en) * 2019-04-11 2019-10-25 武汉大学 A kind of sounding balloon based on gas collecting device
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CN204886958U (en) * 2015-08-25 2015-12-16 东莞前沿技术研究院 A communication system and aerostatics for aerostatics
CN204925668U (en) * 2015-08-25 2015-12-30 东莞前沿技术研究院 A control system with close on spacecraft for closing on spacecraft
CN206362374U (en) * 2016-11-04 2017-07-28 东莞前沿技术研究院 A kind of measurement harvester suitable for aerostatics
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CN111824385B (en) * 2020-06-15 2021-10-29 中国科学院空天信息创新研究院 Air pressure switch, pressure maintaining device and high-altitude balloon restraint releasing device

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