CN112498652A - Wireless sensor for captive balloon and captive balloon - Google Patents
Wireless sensor for captive balloon and captive balloon Download PDFInfo
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- CN112498652A CN112498652A CN202110166656.0A CN202110166656A CN112498652A CN 112498652 A CN112498652 A CN 112498652A CN 202110166656 A CN202110166656 A CN 202110166656A CN 112498652 A CN112498652 A CN 112498652A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64B—LIGHTER-THAN AIR AIRCRAFT
- B64B1/00—Lighter-than-air aircraft
- B64B1/40—Balloons
- B64B1/50—Captive balloons
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D21/00—Measuring or testing not otherwise provided for
- G01D21/02—Measuring two or more variables by means not covered by a single other subclass
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- G—PHYSICS
- G08—SIGNALLING
- G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
- G08C17/00—Arrangements for transmitting signals characterised by the use of a wireless electrical link
- G08C17/02—Arrangements for transmitting signals characterised by the use of a wireless electrical link using a radio link
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/34—Parallel operation in networks using both storage and other dc sources, e.g. providing buffering
- H02J7/35—Parallel operation in networks using both storage and other dc sources, e.g. providing buffering with light sensitive cells
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Computer Networks & Wireless Communication (AREA)
- Power Engineering (AREA)
- Mechanical Engineering (AREA)
- Aviation & Aerospace Engineering (AREA)
- Arrangements For Transmission Of Measured Signals (AREA)
Abstract
The invention provides a wireless sensor for a captive balloon and the captive balloon, comprising: the system comprises a sensor array unit, a power supply and distribution unit, a data management unit, an active temperature control unit and a sensor box body; the sensor array unit is connected with the data management unit and is used for detecting various engineering data in the flying process of the captive balloon; the data management unit specifically comprises an interface circuit, a master control circuit, a communication circuit and a wireless communication antenna and is used for receiving data of the sensor array unit, acquiring the working states of the active temperature control unit and the power supply and distribution unit and sending a control instruction, wherein the active temperature control unit is connected with the data management unit and is used for transmitting temperature control data to the data management unit and receiving the control instruction of the data management unit, self-power supply is realized by solar energy in a wireless communication mode, and the data are transmitted to the flight control equipment in a wireless mode.
Description
Technical Field
The invention relates to the technical field of aircrafts, in particular to a wireless sensor for a captive balloon and the captive balloon.
Background
The captive balloon is one of floating flyers, the interior of the captive balloon consists of a helium-filled main airbag and an air-filled auxiliary airbag, and for large captive balloons, the volume of the main airbag and the auxiliary airbag can reach the magnitude of several thousand cubic meters, and the surface span is extremely large.
Generally, the main airbag is positioned on the upper half part of the captive balloon, and a device for acquiring relevant parameters of the main airbag is required to be positioned at the top of the part, namely the top position of the captive balloon; the ballonet is positioned at the lower half part of the captive balloon, and the flight control related equipment is positioned in a control pod which is usually positioned at the bottom of the part, namely the bottom position of the captive balloon; the equipment for acquiring the relevant parameters of the main airbag relates to various types of sensors, the driving modes, the power utilization voltage, the signal forms and the interfaces of the sensors are different, and the requirements of different types are realized by controlling the control equipment in the nacelle. In the prior art, connection between the acquisition equipment and the control equipment is realized in a wired cable mode, the number of related connecting lines is large, and specification parameters of each cable are different, so that a lot of difficulties are brought to the whole system from design to construction to application, especially for large captive balloons, the extremely large surface span brings long-distance wiring, signals in the cables are greatly interfered, and the phenomena of unstable data and even data loss are caused; meanwhile, the increase of the length and the number of the cables brings new problems of the sudden increase of the weight of the cables and the like, and the load-carrying capacity of the platform payload is squeezed.
Therefore, it is very urgent to adopt a new method to solve the above problems.
Disclosure of Invention
The invention provides a wireless sensor for a captive balloon and the captive balloon, self-power supply is realized through solar energy, data are transmitted to flight control equipment in a wireless mode, large-scale sphere wiring is not involved in the process, and the effective payload capacity and the working stability of a platform are effectively improved.
The invention provides a wireless sensor for captive balloons, comprising: the system comprises a sensor array unit, a power supply and distribution unit, a data management unit, an active temperature control unit and a sensor box body;
the sensor array unit is connected with the data management unit and is used for detecting various engineering data in the flying process of the captive balloon;
the data management unit specifically comprises an interface circuit, a master control circuit, a communication circuit and a wireless communication antenna, and is used for receiving data of the sensor array unit, acquiring working states of the active temperature control unit and the power supply and distribution unit, sending a control instruction, generating a data protocol packet, and sending the data out in a wireless mode through a Lora technology;
the active temperature control unit is connected with the data management unit and used for transmitting temperature control data to the data management unit and receiving a control instruction of the data management unit;
the sensor array unit, the power supply and distribution unit and the active temperature control unit are wrapped by the sensor box body and provide fixed positions, and an electric connector on a panel of the sensor box body provides a connecting channel for the internal unit and the external unit of the box body;
the power supply and distribution unit is connected with the sensor array unit, the data management unit and the active temperature control unit and used for realizing self power supply of the wireless sensor by utilizing solar energy and supplying power to the sensor array unit, the data management unit and the active temperature control unit, and meanwhile, the power supply and distribution unit also transmits state data to the data management unit and receives a control instruction of the data management unit.
Further, the sensor array unit specifically includes:
the pressure detection unit specifically comprises a pressure sensor, a driving circuit and a data sampling circuit, and is used for detecting the pressure difference of the main balloon of the captive balloon and generating a pressure difference signal;
the temperature detection unit specifically comprises a temperature sensor, a driving circuit and a data sampling circuit, and is used for detecting the helium temperature and the atmospheric temperature of the captive balloon and generating a temperature signal;
the humidity detection unit specifically comprises a humidity sensor, a driving circuit and a data sampling circuit, and is used for detecting the helium humidity and the atmospheric humidity of the captive balloon and generating a humidity signal;
the wind speed and direction detection unit specifically comprises a wind speed and direction sensor, a power supply circuit and a data communication circuit, and is used for detecting the wind speed and direction in the flying environment of the captive balloon and generating a wind speed and direction signal.
Further, the power supply and distribution unit includes:
the solar cell is connected with the charging control circuit and used for generating electricity by utilizing solar energy to generate electric energy with optimal efficiency;
the charging control circuit is connected with the lithium battery pack and used for controlling the charging process of the lithium battery pack;
the lithium battery pack is connected with the power distribution circuit and used for storing electric energy;
the power distribution circuit is used for providing voltage-stabilizing power supply with different specifications for the sensor array unit, the data management unit and the active temperature control unit;
further, the output voltage of the distribution circuit is 5V, 12V and 24V.
Further, the charging control circuit is provided with an MPPT control module, and the MPPT control module is configured to track a maximum power point of the solar battery to optimize charging efficiency.
Furthermore, the initiative temperature control unit is installed inside the sensor box body and is used for controlling the temperature inside the box body within a preset range to ensure the requirements of the sensor array unit, the power supply and distribution unit, the data management unit and the initiative temperature control unit on the environment temperature.
Further, the active temperature control unit specifically includes:
the temperature probe is connected with the temperature control relay and used for acquiring temperature data as the input of active temperature control;
the temperature control relay is connected with the heating film and used for controlling the work of the heating film;
and the interface circuit is connected with the temperature control relay and is used for providing electric energy and control signals for the temperature control relay.
Further, the data management unit includes:
the interface circuit is connected with the main control circuit and is used for receiving signals generated by the sensor array unit, the power supply and distribution unit and the active temperature control unit, amplifying and filtering the signals and then sending the signals to the main control circuit, and meanwhile transmitting a control instruction sent by the main control circuit to the sensor array unit, the power supply and distribution unit and the active temperature control unit;
the master control circuit is connected with the communication circuit and is used for analyzing and processing the data and generating a data protocol packet according to a set protocol;
and the communication circuit is connected with the wireless communication antenna and is used for realizing wireless transmission of data.
Further, the sensor box includes:
the box structure is used for forming the outer wall of the wireless sensor, and the sensor array unit, the power supply and distribution unit, the data management unit and the active temperature control unit are positioned in a cavity of the box structure;
and the electric connector is used for connecting the sensor array unit and the solar cell and is arranged on the outer side of the box structural member.
In another aspect, the present invention provides a captive balloon having a wireless sensor for captive balloons as described in any one of the above;
the wireless sensor for the captive balloon is mounted at the top of the captive balloon and used for collecting engineering data related to the main balloon in the flying environment of the captive balloon and transmitting the engineering data to the flight control computer in a pod at the bottom of the captive balloon.
According to the wireless sensor for the captive balloon and the captive balloon, the sensor array unit, the power supply and distribution unit, the data management unit, the active temperature control unit and the sensor box are arranged, self-power supply is achieved through solar energy in a wireless communication mode, data are transmitted to flight control equipment in a wireless mode, large-scale sphere wiring is not involved in the process, and the effective carrying capacity of a platform and the working stability are effectively improved.
Drawings
In order to more clearly illustrate the technical solutions of the present invention or the prior art, the drawings needed for the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and those skilled in the art can also obtain other drawings according to the drawings without creative efforts.
Fig. 1 is a schematic structural diagram illustrating a wireless sensor for captive balloons according to an embodiment of the present invention;
FIG. 2 is a schematic diagram of a sensor array unit of a wireless sensor for captive balloons, according to an embodiment of the present invention;
FIG. 3 is a schematic diagram of a power supply and distribution unit of a wireless sensor for captive balloons according to an embodiment of the present invention;
fig. 4 is a schematic diagram illustrating an active temperature control unit of a wireless sensor for captive balloons according to an embodiment of the present invention;
fig. 5 is a schematic diagram illustrating a data management unit of a wireless sensor for captive balloons according to an embodiment of the present invention;
fig. 6 is a schematic view of an application of the wireless sensor for a captive balloon according to an embodiment of the present invention to the captive balloon.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings, 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 given herein without making any creative effort, shall fall within the protection scope of the present invention.
A wireless sensor for a captive balloon according to the invention is described below with reference to figures 1 to 5.
Fig. 1 is a schematic structural diagram illustrating a wireless sensor for captive balloons according to an embodiment of the present invention; FIG. 2 is a schematic diagram of a sensor array unit of a wireless sensor for captive balloons, according to an embodiment of the present invention; FIG. 3 is a schematic diagram of a power supply and distribution unit of a wireless sensor for captive balloons according to an embodiment of the present invention; fig. 4 is a schematic diagram illustrating an active temperature control unit of a wireless sensor for captive balloons according to an embodiment of the present invention; fig. 5 is a schematic diagram illustrating a data management unit of a wireless sensor for captive balloons according to an embodiment of the present invention.
In one embodiment of the present invention, a wireless sensor for captive balloons is provided, including: the system comprises a sensor array unit, a power supply and distribution unit, a data management unit, an active temperature control unit and a sensor box body; the sensor array unit is connected with the data management unit and is used for detecting various engineering data in the flying process of the captive balloon; the data management unit specifically comprises an interface circuit, a master control circuit, a communication circuit and a wireless communication antenna, and is used for receiving data of the sensor array unit, acquiring working states of the active temperature control unit and the power supply and distribution unit, sending a control instruction, generating a data protocol packet, and sending the data out in a wireless mode through a Lora technology; the active temperature control unit is connected with the data management unit and used for transmitting temperature control data to the data management unit and receiving a control instruction of the data management unit; the sensor array unit, the power supply and distribution unit, the data management unit and the active temperature control unit are wrapped by the sensor box body and provide fixed positions, and the electric connector on the panel of the sensor box body provides a connecting channel for the internal unit and the external unit of the box body; the power supply and distribution unit is connected with the sensor array unit, the data management unit and the active temperature control unit and used for realizing self power supply of the wireless sensor by utilizing solar energy and supplying power to the sensor array unit, the data management unit and the active temperature control unit, and meanwhile, the power supply and distribution unit also transmits state data to the data management unit and receives a control instruction of the data management unit.
As shown in fig. 1, the present embodiment includes: the device comprises a sensor array unit, a power supply and distribution unit, an active temperature control unit, a data management unit and a sensor box body. The sensor array unit is connected with the data management unit and is used for transmitting the collected data of various sensors; the power supply and distribution unit is connected with the sensor array unit, the data management unit and the active temperature control unit and is used for providing electric energy for the sensor array unit, the power supply and distribution unit, the data management unit and the active temperature control unit; meanwhile, the power supply and distribution unit also transmits state data to the data management unit and receives a control instruction of the data management unit; the active temperature control unit is connected with the data management unit and used for transmitting temperature control state data to the data management unit and receiving a control instruction of the data management unit; the sensor box body wraps the units, is used for forming the outer wall of the wireless sensor, and is provided with an electric connector arranged on the outer side of the box body and used for connecting the sensor array unit or each type of sensor and the solar cell.
Further, in an embodiment of the present invention, the sensor array unit specifically includes: the pressure detection unit specifically comprises a pressure sensor, a driving circuit and a data sampling circuit, and is used for detecting the pressure difference of the main balloon of the captive balloon and generating a pressure difference signal; the temperature detection unit specifically comprises a temperature sensor, a driving circuit and a data sampling circuit, and is used for detecting the helium temperature and the atmospheric temperature of the captive balloon and generating a temperature signal; the humidity detection unit specifically comprises a humidity sensor, a driving circuit and a data sampling circuit, and is used for detecting the helium humidity and the atmospheric humidity of the captive balloon and generating a humidity signal; the wind speed and direction detection unit specifically comprises a wind speed and direction sensor, a power supply circuit and a data communication circuit, and is used for detecting the wind speed and direction in the flying environment of the captive balloon and generating a wind speed and direction signal.
As shown in fig. 2, the pressure sensor, the driving circuit and the data sampling circuit are used for detecting the pressure difference of the main balloon of the captive balloon and generating a pressure difference signal; the driving circuit provides constant-voltage source excitation for the pressure sensor to drive the sensor to work; the data sampling circuit generates an original digital signal by AD conversion of the voltage analog quantity signal output by the sensor.
The temperature sensor array, the driving circuit and the data sampling circuit are used for detecting the helium temperature and the atmospheric temperature of the captive balloon and generating a temperature signal; the driving circuit provides constant current source excitation for the temperature sensor to drive the sensor to work; the data sampling circuit generates an original digital signal by AD conversion of the voltage analog quantity signal output by the sensor.
The humidity sensor, the driving circuit and the data sampling circuit are used for detecting the helium humidity and the atmospheric humidity of the captive balloon to generate a humidity number signal; the driving circuit provides constant voltage source excitation for the humidity sensor to drive the sensor to work; the data sampling circuit generates an original digital signal by AD conversion of the voltage analog quantity signal output by the sensor.
The wind speed and direction sensor, the power supply circuit and the data communication circuit are used for detecting the wind speed and the wind direction in the flying environment of the captive balloon and generating a wind speed and direction signal; the power supply circuit realizes voltage conversion, generates 12V direct current voltage meeting the requirements of the wind speed and direction sensor and drives the sensor to work; the data communication circuit adopts serial ports RS485 specification, and outputs sensor data through a Modbus protocol.
Further, in an embodiment of the present invention, the power supply and distribution unit includes: the solar cell is connected with the charging control circuit and used for generating electricity by utilizing solar energy to generate electric energy with optimal efficiency; the charging control circuit is connected with the lithium battery pack and used for controlling the charging process of the lithium battery pack; the lithium battery pack is connected with the power distribution circuit and used for storing electric energy; the power distribution circuit is used for providing voltage-stabilizing power supply with different specifications for the sensor array unit, the data management unit and the active temperature control unit; the output voltages of the distribution circuit are 5V, 12V and 24V.
Specifically, as shown in fig. 3, a solar cell for generating electricity using solar energy is connected to a charge control circuit to generate electric energy at an optimum efficiency; the solar cell adopts a soft thin-film cell, and can be conveniently fixed on the surface of the bag body of the captive balloon in a nylon hasp pasting mode; the charging control circuit is connected with the lithium battery pack and used for controlling the charging process of the lithium battery; on one hand, the circuit realizes the maximum power point tracking of the solar battery through MPPT control, and realizes the optimization of charging efficiency; and on the other hand, the charging process of the lithium battery pack is controlled, and the safety of battery charging is ensured. The lithium battery pack is used for storing electric energy, is connected with the power distribution circuit and is used for providing electric energy for other units; the distribution circuit converts the voltage output by the lithium battery pack into 5V, 12V and 24V voltages for the sensor array unit, the data management unit and the active temperature control unit.
Furthermore, in an embodiment of the present invention, the active temperature control unit is installed inside the sensor box, and is configured to control the temperature inside the box within a preset range, so as to ensure the requirements of the sensor array unit, the power supply and distribution unit, the data management unit, and the active temperature control unit on the ambient temperature. Specifically, the active temperature control unit specifically includes: the temperature probe is connected with the temperature control relay and used for acquiring temperature data as the input of active temperature control; the temperature control relay is connected with the heating film and used for controlling the work of the heating film; and the interface circuit is connected with the temperature control relay and is used for providing electric energy and control signals for the temperature control relay.
As shown in fig. 4, the active temperature control unit includes: the temperature probe is connected with the temperature control relay and used for acquiring temperature data as the input of active temperature control; the temperature probe adopts a PT100 platinum resistance sensor, is arranged in a sensor case, and acquires the temperature value of the space in the case; the temperature control relay is connected with the heating film and used for controlling the work of the heating film; the temperature control relay senses the data of the temperature probe, and when the temperature data is smaller than the opening threshold To, the temperature control relay is conducted, the heating film starts To work and emits heat, and the temperature in the case of the sensor gradually rises; when the temperature data is greater than a closing threshold Tc, the temperature control relay is switched off, the heating film stops working, and the temperature in the case of the sensor is gradually reduced; the process is repeatedly executed, and the temperature in the sensor is controlled in a certain interval; the heating film is adhered to a heat dissipation module, is arranged in the case of the sensor and is used for providing heat energy; the interface circuit is connected with the temperature control relay and is used for providing electric energy and control signals for the temperature control relay; the control signal is used for controlling the on-off state of the relay, when the control signal is at a high level VH, the relay is switched on, and when the control signal is at a low level VL, the relay is switched off.
Further, in an embodiment of the present invention, the data management unit includes: the interface circuit is connected with the main control circuit and is used for receiving signals generated by the sensor array unit, the power supply and distribution unit and the active temperature control unit, amplifying and filtering the signals and then sending the signals to the main control circuit, and meanwhile transmitting a control instruction sent by the main control circuit to the sensor array unit, the power supply and distribution unit and the active temperature control unit; the master control circuit is connected with the communication circuit and is used for analyzing and processing the data and generating a data protocol packet according to a set protocol; and the communication circuit is connected with the wireless communication antenna and is used for realizing wireless transmission of data.
Specifically, as shown in fig. 5, the data management unit includes: the interface circuit is connected with the main control circuit and is divided into two parts, wherein one part is a data acquisition function and is used for receiving data of the sensor array unit, and an SPI (serial peripheral interface) is adopted; the other part is used for communicating with the master control temperature control unit and the power supply and distribution unit, acquiring working state data, transmitting a control instruction to the units and adopting an RS485 interface; the master control circuit is connected with the interface circuit and the communication circuit simultaneously and is used for processing and packaging data, generating a data protocol packet according to a set protocol, generating a control instruction and sending the control instruction to the active temperature control unit and the power supply and distribution unit; and the communication circuit is connected with the wireless communication antenna and used for realizing wireless transmission of data, and the Lora technology is adopted to realize wireless transmission of low power consumption and small data volume.
On the basis of any one of the above embodiments, in this embodiment, the sensor box includes: the box structure is used for forming the outer wall of the wireless sensor, and the sensor array unit, the power supply and distribution unit, the data management unit and the active temperature control unit are positioned in a cavity of the box structure; and the electric connector is used for connecting the sensor array unit and the solar cell and is arranged on the outer side of the box structure. The active temperature control unit is arranged in the sensor box body and used for controlling the temperature in the box body within a certain range. The sensor array unit, the power supply and distribution unit, the data management unit and the active temperature control unit are wrapped by the sensor box body and provide fixed positions, and the electric connector on the panel of the sensor box body provides a connecting channel for the internal unit and the external unit of the box body.
According to the wireless sensor for the captive balloon and the captive balloon provided by the embodiment of the invention, the sensor array unit, the power supply and distribution unit, the data management unit, the active temperature control unit and the sensor box are arranged, a wireless communication mode is used, solar energy is self-powered, and data is transmitted to flight control equipment in a wireless mode.
Embodiments of the present invention are described below with reference to a captive balloon, and reference may be made to a captive balloon described below and a wireless sensor method for captive balloons described above.
Referring to fig. 6, fig. 6 is a schematic structural diagram of a captive balloon according to an embodiment of the present invention.
The embodiment of the invention provides a captive balloon, which is provided with a wireless sensor for the captive balloon in any one of the embodiments; the wireless sensor for the captive balloon is mounted at the top of the captive balloon and used for collecting engineering data related to the main balloon in the flying environment of the captive balloon and transmitting the engineering data to the flight control computer in a pod at the bottom of the captive balloon.
As shown in fig. 6, the captive balloon is composed of a main airbag and a sub-airbag, and helium is filled in the main airbag, so that the captive balloon can fly in the sky. The pod is installed at the bottom of the sphere, the wireless sensor instrument is installed at the top of the sphere, data and instructions are transmitted between the wireless sensor instrument and the pod through a wireless technology, cables do not need to be arranged on the surface of the sphere, the effective load capacity of the platform is increased, the unstable data caused by signal interference is avoided, and the flight reliability of the platform is improved.
According to the captive balloon provided by the embodiment of the invention, the sensor array unit, the power supply and distribution unit, the data management unit, the active temperature control unit and the sensor box body are arranged, the solar energy is self-powered by using a wireless communication mode, and the data is transmitted to the flight control equipment in a wireless mode.
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 wireless sensor for a tethered balloon, comprising: the system comprises a sensor array unit, a power supply and distribution unit, a data management unit, an active temperature control unit and a sensor box body;
the sensor array unit is connected with the data management unit and is used for detecting various engineering data in the flying process of the captive balloon;
the data management unit specifically comprises an interface circuit, a master control circuit, a communication circuit and a wireless communication antenna, and is used for receiving data of the sensor array unit, acquiring working states of the active temperature control unit and the power supply and distribution unit, sending a control instruction, generating a data protocol packet, and sending the data out in a wireless mode through a Lora technology;
the active temperature control unit is connected with the data management unit and used for transmitting temperature control data to the data management unit and receiving a control instruction of the data management unit;
the sensor array unit, the power supply and distribution unit, the data management unit and the active temperature control unit are wrapped by the sensor box body and provide fixed positions, and the electric connector on the panel of the sensor box body provides a connecting channel for the internal unit and the external unit of the box body;
the power supply and distribution unit is connected with the sensor array unit, the data management unit and the active temperature control unit and used for realizing self power supply of the wireless sensor by utilizing solar energy and supplying power to the sensor array unit, the data management unit and the active temperature control unit, and meanwhile, the power supply and distribution unit also transmits state data to the data management unit and receives a control instruction of the data management unit.
2. A wireless sensor for a tethered balloon as claimed in claim 1, wherein the sensor array unit comprises in particular:
the pressure detection unit specifically comprises a pressure sensor, a driving circuit and a data sampling circuit, and is used for detecting the pressure difference of the main balloon of the captive balloon and generating a pressure difference signal;
the temperature detection unit specifically comprises a temperature sensor, a driving circuit and a data sampling circuit, and is used for detecting the helium temperature and the atmospheric temperature of the captive balloon and generating a temperature signal;
the humidity detection unit specifically comprises a humidity sensor, a driving circuit and a data sampling circuit, and is used for detecting the helium humidity and the atmospheric humidity of the captive balloon and generating a humidity signal;
the wind speed and direction detection unit specifically comprises a wind speed and direction sensor, a power supply circuit and a data communication circuit, and is used for detecting the wind speed and direction in the flying environment of the captive balloon and generating a wind speed and direction signal.
3. A wireless sensor gauge for a tethered balloon as claimed in claim 1, wherein the power supply and distribution unit comprises:
the solar cell is connected with the charging control circuit and used for generating electricity by utilizing solar energy to generate electric energy with optimal efficiency;
the charging control circuit is connected with the lithium battery pack and used for controlling the charging process of the lithium battery pack;
the lithium battery pack is connected with the power distribution circuit and used for storing electric energy;
and the power distribution circuit is used for providing voltage-stabilizing power supply of different specifications for the sensor array unit, the data management unit and the active temperature control unit.
4. A wireless sensor for a tethered balloon as claimed in claim 3 wherein the output voltage of the power distribution circuit is 5V, 12V and 24V.
5. A wireless sensor for a tethered balloon as in claim 3, wherein the charging control circuit is provided with an MPPT control module for tracking the maximum power point of the solar cell to optimize charging efficiency.
6. The wireless sensor for captive balloons of claim 1, wherein the active temperature control unit is installed inside the sensor housing, and is configured to control the temperature inside the housing within a predetermined range, so as to meet the environmental temperature requirements of the sensor array unit, the power supply and distribution unit, the data management unit, and the active temperature control unit.
7. The wireless sensor for a tethered balloon of claim 6, wherein the active temperature control unit comprises in particular:
the temperature probe is connected with the temperature control relay and used for acquiring temperature data as the input of active temperature control;
the temperature control relay is connected with the heating film and used for controlling the work of the heating film;
and the interface circuit is connected with the temperature control relay and is used for providing electric energy and control signals for the temperature control relay.
8. A wireless sensor for a tethered balloon as defined by claim 1, wherein the data management unit comprises:
the interface circuit is connected with the main control circuit and is used for receiving signals generated by the sensor array unit, the power supply and distribution unit and the active temperature control unit, amplifying and filtering the signals and then sending the signals to the main control circuit, and meanwhile transmitting a control instruction sent by the main control circuit to the sensor array unit, the power supply and distribution unit and the active temperature control unit;
the master control circuit is connected with the communication circuit and is used for analyzing and processing the data and generating a data protocol packet according to a set protocol;
and the communication circuit is connected with the wireless communication antenna and is used for realizing wireless transmission of data.
9. A wireless sensor gauge for a tethered balloon according to any of claims 1 to 8, wherein the sensor gauge housing comprises:
the box structure is used for forming the outer wall of the wireless sensor, and the sensor array unit, the power supply and distribution unit, the data management unit and the active temperature control unit are positioned in a cavity of the box structure;
and the electric connector is used for connecting the sensor array unit and the solar cell and is arranged on the outer side of the box structural member.
10. A captive balloon having a wireless sensor for a captive balloon as claimed in any one of claims 1 to 9;
the wireless sensor for the captive balloon is mounted at the top of the captive balloon and used for collecting engineering data related to the main balloon in the flying environment of the captive balloon and transmitting the engineering data to the flight control computer in a pod at the bottom of the captive balloon.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110166656.0A CN112498652A (en) | 2021-02-07 | 2021-02-07 | Wireless sensor for captive balloon and captive balloon |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110166656.0A CN112498652A (en) | 2021-02-07 | 2021-02-07 | Wireless sensor for captive balloon and captive balloon |
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| CN112498652A true CN112498652A (en) | 2021-03-16 |
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| CN202110166656.0A Pending CN112498652A (en) | 2021-02-07 | 2021-02-07 | Wireless sensor for captive balloon and captive balloon |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
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