CN117335133A - Dual-polarized plate-shaped antenna and unmanned aerial vehicle terrain monitoring device using same - Google Patents

Dual-polarized plate-shaped antenna and unmanned aerial vehicle terrain monitoring device using same Download PDF

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Publication number
CN117335133A
CN117335133A CN202311489068.6A CN202311489068A CN117335133A CN 117335133 A CN117335133 A CN 117335133A CN 202311489068 A CN202311489068 A CN 202311489068A CN 117335133 A CN117335133 A CN 117335133A
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impedance
dual
circuit
image acquisition
electrically connected
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邓崇毅
李冠耀
谈锦坚
关天防
邓泽成
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Foshan Aoxin Technology Co ltd
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Foshan Aoxin Technology Co ltd
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Priority to CN202311489068.6A priority Critical patent/CN117335133A/en
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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/36—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B64—AIRCRAFT; AVIATION; COSMONAUTICS
    • B64U—UNMANNED AERIAL VEHICLES [UAV]; EQUIPMENT THEREFOR
    • B64U20/00—Constructional aspects of UAVs
    • B64U20/80—Arrangement of on-board electronics, e.g. avionics systems or wiring
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
    • G01C11/00—Photogrammetry or videogrammetry, e.g. stereogrammetry; Photographic surveying
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
    • H01P5/00—Coupling devices of the waveguide type
    • H01P5/08—Coupling devices of the waveguide type for linking dissimilar lines or devices
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/12—Supports; Mounting means
    • H01Q1/22—Supports; Mounting means by structural association with other equipment or articles
    • H01Q1/24—Supports; Mounting means by structural association with other equipment or articles with receiving set
    • H01Q1/241—Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/27—Adaptation for use in or on movable bodies
    • H01Q1/28—Adaptation for use in or on aircraft, missiles, satellites, or balloons
    • H01Q1/285—Aircraft wire antennas
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/50—Structural association of antennas with earthing switches, lead-in devices or lightning protectors
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B64—AIRCRAFT; AVIATION; COSMONAUTICS
    • B64U—UNMANNED AERIAL VEHICLES [UAV]; EQUIPMENT THEREFOR
    • B64U2101/00—UAVs specially adapted for particular uses or applications
    • B64U2101/30—UAVs specially adapted for particular uses or applications for imaging, photography or videography
    • B64U2101/32—UAVs specially adapted for particular uses or applications for imaging, photography or videography for cartography or topography

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  • Engineering & Computer Science (AREA)
  • Remote Sensing (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Astronomy & Astrophysics (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Mechanical Engineering (AREA)
  • Multimedia (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Variable-Direction Aerials And Aerial Arrays (AREA)

Abstract

The invention discloses a dual-polarized plate-shaped antenna and an unmanned aerial vehicle terrain monitoring device using the same, and belongs to the technical field of antennas; in the dual-polarized plate antenna, each third impedance is matched with two impedance output ends; the feed point is electrically connected with one end of the first impedance through the impedance input end, one ends of the two second impedances are electrically connected with the other end of the first impedance after being connected in parallel, the other end of the second impedance is electrically connected with the third impedance, and one ends of the two impedance output ends are electrically connected with the third impedance after being connected in parallel; the other end of the impedance output end is electrically connected with the corresponding dual-polarized radiation unit through the balun. The unmanned aerial vehicle terrain monitoring device uses a dual-polarized plate-shaped antenna, and comprises a power supply circuit, a wake-up dormancy circuit, an MCU and a plurality of image acquisition circuits, wherein the power supply circuit, the wake-up dormancy circuit, the MCU and the image acquisition circuits are arranged on the unmanned aerial vehicle. The dual-polarized plate-shaped antenna and the unmanned aerial vehicle terrain monitoring device using the same solve the problem that the existing dual-polarized antenna cannot meet the requirements of the existing 5G communication system.

Description

Dual-polarized plate-shaped antenna and unmanned aerial vehicle terrain monitoring device using same
Technical Field
The invention relates to the technical field of antennas, in particular to a dual-polarized plate-shaped antenna and an unmanned aerial vehicle terrain monitoring device using the same.
Background
The dual-polarized antenna device is mainly used for obtaining terrain variation in some scenes needing stable transmission information, such as terrain monitoring on an unmanned plane due to high transmission rate requirements. In recent years, with the rapid development of integration of communication systems, the size of an antenna is required to be smaller and the performance is higher, but in the current stage, a dual-polarized antenna is mainly designed by adopting dipoles, the frequency band of the dipoles is narrower, the frequency band is difficult to realize very wide, and the dual-polarized antenna covering the frequency band of 3300-3800MHz cannot meet the requirement of the current 5G communication system.
Disclosure of Invention
In order to overcome the drawbacks of the prior art, an object of the present invention is to provide a dual polarized plate antenna to solve the above-mentioned problems.
In order to overcome the defects of the prior art, another object of the present invention is to provide an unmanned aerial vehicle terrain monitoring device, so as to solve the above-mentioned problems.
The technical scheme adopted for solving the technical problems is as follows: a dual polarized plate antenna comprises two dual polarized one-to-eight impedance modules, eight balun and eight dual polarized radiating elements;
the two dual-polarization one-to-eight impedance modules are electrically connected through a feed point;
the dual-polarization one-to-eight impedance module comprises an impedance input end, a first impedance, two second impedances, two third impedances and four impedance output ends, wherein the second impedances correspond to the third impedances one by one, and each third impedance is matched with the two impedance output ends; the feed point is electrically connected with one end of the first impedance through the impedance input end, one ends of the two second impedances are connected in parallel and then are electrically connected with the other end of the first impedance, the other end of the second impedance is electrically connected with the third impedance, and one ends of the two impedance output ends are connected in parallel and then are electrically connected with the third impedance;
the impedance output ends are in one-to-one correspondence with the balun, the balun is in one-to-one correspondence with the dual-polarized radiating units, and the other ends of the impedance output ends are electrically connected with the corresponding dual-polarized radiating units through the balun.
It should be noted that, the resistance of the impedance input end is 50 ohms, the resistance of the first impedance is 25 ohms, the resistance of the second impedance is 50 ohms, the resistance of the third impedance is 25 ohms, and the resistance of the impedance output end is 50 ohms.
Optionally, the four impedance output ends of the dual-polarization one-eight impedance module are divided into a positive 45-degree impedance unit and a negative 45-degree impedance unit, wherein the positive 45-degree impedance unit is composed of two impedance output ends, and the negative 45-degree impedance unit is composed of the remaining two impedance output ends.
Preferably, the dual polarized radiating element is a biconical vibrator.
Specifically, the dual-polarized plate-shaped antenna further comprises a reflecting plate, and the dual-polarized one-to-eight impedance module, the balun and the dual-polarized radiation unit are all arranged on the front face of the reflecting plate.
It is worth to say that, dual polarized plate antenna still includes N type joint, N type joint set up in the back of reflecting plate, N type joint's output with feed some electricity and be connected, N type joint's input is used for the input signal that needs the transmission.
Preferably, the unmanned aerial vehicle terrain monitoring device uses the dual-polarized plate-shaped antenna.
Optionally, the system comprises a power supply circuit, a wake-up sleep circuit, an MCU and a plurality of image acquisition circuits, wherein the power supply circuit, the wake-up sleep circuit, the MCU and the image acquisition circuits are arranged on the unmanned aerial vehicle; the image acquisition circuits are used for acquiring images of a plurality of angles of the terrain to be monitored;
the output end of the power supply circuit is electrically connected with the input end of the wake-up dormancy circuit and the power input end of the MCU respectively;
the awakening dormancy circuit is respectively and electrically connected with all the image acquisition circuits in a bidirectional manner, and is electrically connected with the enabling output end of the MCU;
the awakening dormancy circuit is used for conducting a loop between the power input end of the first image acquisition circuit and the power supply circuit according to the time set by the MCU; the circuit is also used for receiving the high level of the previous image acquisition circuit and then conducting the loop between the power input end of the next image acquisition circuit and the power supply circuit;
the signal output end of the image acquisition circuit is electrically connected with the signal input end of the MCU, the signal output end of the MCU is electrically connected with the feed point of the dual-polarized plate-shaped antenna, and the dual-polarized radiation unit of the dual-polarized plate-shaped antenna is in communication connection with an upper computer positioned at a base station through wireless signals.
Specifically, the wake-up sleep circuit includes n power supply output terminalsAnd n level inputs->The power supply input end of the image acquisition circuit is +.>Is the power input end of the nth image acquisition circuit, the power input end of the image acquisition circuit is +.>And the power supply output terminal->One-to-one correspondence, the level output end of the image acquisition circuit is +.>The level output end of the nth image acquisition circuit is used for the level output end of the image acquisition circuitAnd the level input terminal->One-to-one correspondence, wherein n is an integer greater than or equal to;
the power output end of the awakening dormancy circuitAnd the power input end of the corresponding image acquisition circuit>An electrical connection, the level input end of the wake-up sleep circuit is +>Level output terminal of the corresponding image acquisition circuit>Is electrically connected with the power supply.
It is worth noting that the wake-up sleep circuit comprises n low dropout linear voltage regulatorsThe low dropout linear regulator +.>And the power supply output end of the wake-up dormancy circuit>One-to-one correspondence, all the low dropout linear regulators +.>Is connected with the power input end of the (a)/>The parallel connection is electrically connected with the output end of the power supply circuit; the low dropout linear regulator +.>The output end of the (a) is the power supply output end of the wake-up dormancy circuit>The method comprises the steps of carrying out a first treatment on the surface of the The low dropout linear regulator +.>Is used as the level input end of the wake-up sleep circuit>The method comprises the steps of carrying out a first treatment on the surface of the The low dropout linear regulator +.>The output end of the (a) is the power supply output end of the wake-up dormancy circuit>The method comprises the steps of carrying out a first treatment on the surface of the Wherein n is an integer greater than or equal to 1;
the MCU comprises a timing module, when n=1, the low dropout linear regulatorIs electrically connected with the timing module, and the timing module is used for supplying the low dropout linear regulator with the sample voltage at a set time>And transmits a high level signal.
The invention has the beneficial effects that: in the dual polarized plate antenna, a signal passes through a feed point, then passes through a dual polarized one-eighth impedance module and is transmitted to a matching circuit board provided with a balun from an impedance output end of the dual polarized one-eighth impedance module, and then is fed to a dual polarized radiation unit in a coupling mode, the matching circuit board provided with the balun is used for balancing the signal transmitted by the dual polarized radiation unit and increasing the bandwidth of the antenna, the dual polarized radiation unit adopts a Chinese character 'tian', and the bandwidth coverage frequency band reached by the signal through the dual polarized radiation unit and the balun is 3300-4200MHz. Thus, the requirements of the existing 5G communication system can be met.
Drawings
Fig. 1 is a plan view of a dual polarized plate antenna in one embodiment of the invention;
fig. 2 is a side view of a dual polarized plate antenna in one embodiment of the invention;
FIG. 3 is a schematic view showing the structure of the front surface of a reflector plate according to an embodiment of the present invention;
FIG. 4 is a schematic diagram of a dual polarization one-to-eight impedance module according to an embodiment of the present invention;
FIG. 5 is a schematic view showing the structure of the reverse side of a reflection plate according to an embodiment of the present invention;
fig. 6 is a schematic structural diagram of a dual polarized radiating element in an embodiment of the present invention;
FIG. 7 is a system block diagram of a drone terrain monitoring device in one embodiment of the invention;
FIG. 8 is a system block diagram of a wake-up sleep circuit with three LDO's in accordance with one embodiment of the present invention;
in the figure: 1, dual polarization one-to-eight impedance modules; 11 feed points; a 12-impedance input; 13 a first impedance; 14 a second impedance; 15 a third impedance; a 16 impedance output; 2 balun; 3 dual polarized radiating elements; a 4 positive 45 degree impedance unit; a 5 minus 45 degree impedance unit; 6, a reflecting plate; 7N-type connector.
Detailed Description
The following describes the embodiments of the present invention further with reference to the drawings. The description of these embodiments is provided to assist understanding of the present invention, but is not intended to limit the present invention. In addition, the technical features of the embodiments of the present invention described below may be combined with each other as long as they do not collide with each other.
As shown in fig. 1 to 8, a dual polarized plate antenna includes two dual polarized one-to-eight impedance modules 1, eight balun 2, and eight dual polarized radiating elements 3;
as shown in fig. 3, two of the dual polarized one-to-eight impedance modules 1 are electrically connected through a feed point 11;
as shown in fig. 4, the dual-polarized one-to-eight impedance module 1 includes an impedance input terminal 12, a first impedance 13, two second impedances 14, two third impedances 15, and four impedance output terminals 16, where the second impedances 14 and the third impedances 15 are in one-to-one correspondence, and each third impedance 15 is paired with two impedance output terminals 16; the feed point 11 is electrically connected with one end of the first impedance 13 through the impedance input end 12, one ends of the two second impedances 14 are connected in parallel and then are electrically connected with the other end of the first impedance 13, the other end of the second impedance 14 is electrically connected with the third impedance 15, and one ends of the two impedance output ends 16 are connected in parallel and then are electrically connected with the third impedance 15;
as shown in fig. 1 and 2, the impedance output ends 16 are in one-to-one correspondence with the balun 2, the balun 2 is in one-to-one correspondence with the dual-polarized radiating element 3, and the other end of the impedance output end 16 is electrically connected with the corresponding dual-polarized radiating element 3 through the balun 2.
In the dual polarized plate antenna, a signal passes through a feed point 11 and then passes through a dual polarized one-eighth impedance module 1 and is transmitted from an impedance output end 16 of the dual polarized one-eighth impedance module 1 to a matching circuit board provided with balun 2 and then is fed to a dual polarized radiating unit 3 in a coupled form, the matching circuit board provided with the balun 2 is used for balancing the signal transmitted by the dual polarized radiating unit 3 and increasing the bandwidth of the antenna, the dual polarized radiating unit 3 adopts a field shape, and the bandwidth coverage frequency band reached by the signal processed by the dual polarized radiating unit 3 and the balun 2 is 3300-4200MHz. Thus, the requirements of the existing 5G communication system can be met.
It should be noted that, the impedance of the impedance input end 12 is 50 ohms, the impedance of the first impedance 13 is 25 ohms, the impedance of the second impedance 14 is 50 ohms, the impedance of the third impedance 15 is 25 ohms, and the impedance of the impedance output end 16 is 50 ohms.
After the signals are input to the feed point 11, the signals enter two dual-polarized one-eighth-split impedance modules 1 respectively, and taking one dual-polarized one-eighth-split impedance module 1 as an example for illustration, the signals are shunted to two impedance input ends 12 through microstrip lines, and the directions of the signals flowing through the two impedance input ends 12 are opposite; since the branch circuit structure behind each impedance input 12 is the same, in this embodiment, the branch circuit behind one of the impedance input 12 is described, and the principle of the branch circuit behind the other impedance input 12 is the same, and the signal is transmitted to the first impedance 13 after passing through the impedance input 12; since the branch circuit after each first impedance 13 is the same, in this embodiment, the principle of one branch circuit after the first impedance 13 is the same, and the other branch circuit after the first impedance 13 is the same, after the signal is split into the first impedances 13, the signal is transmitted to the third impedance 15 through the second impedance 14, and since the second impedances 14 in the two branch circuits after the two first impedances 13 are all transmitted with 50 ohms, the parallel connection of the two second impedances 14 must use 25 ohms (i.e. the first impedances 13) to enable the impedance to be adjusted to 50 ohms (i.e. the second impedances 14) after the parallel connection to achieve the transmission; since the branch circuit after each third impedance 15 is the same, in this embodiment, one of the branch circuits after the third impedance 15 is described, and the principle of the other branch circuit after the third impedance 15 is the same, the signal is output from the impedance output terminal 16 after passing through the third impedance 15, and then reaches the corresponding dual polarized radiating element 3 after passing through the corresponding balun 2. Since one feed point 11 has two impedance input terminals 12, one first impedance 13 has two second impedances 14, there will be four second impedances 14, and one third impedance 15 has two impedance output terminals 16, there will be eight impedance output terminals 16, so that eight impedance output terminals 16 output to the corresponding balun 2 at the same time, and output from the corresponding balun 2 to the corresponding dual-polarized radiating element 3, and eight dual-polarized radiating elements 3 operate at the same time to improve efficiency.
Preferably, as shown in fig. 3, the four impedance output terminals 16 of the dual-polarized one-eighth impedance module 1 are divided into a positive 45-degree impedance unit 4 and a negative 45-degree impedance unit 5, wherein the positive 45-degree impedance unit 4 is composed of two impedance output terminals 16, and the negative 45-degree impedance unit 5 is composed of the remaining two impedance output terminals 16.
Alternatively, as shown in fig. 6, the dual polarized radiating element 3 is a biconical vibrator. The biconical vibrator is characterized by a biconical structure with gradually-increased opening angle, current gradually increases from weak to strong, and bandwidth and flatness of the antenna are increased. Each dual-polarized radiating element 3 adopts a biconical vibrator, and the structure is characterized in that gradually-increased signals from the inner side to the outer side of the opening angle are converged to a greater extent, so that the flatness of the signal bandwidth is facilitated. The bandwidth coverage frequency band of the signal which is processed by the dual-polarized radiation unit 3 and the balun 2 is 3300-4200MHz.
Specifically, as shown in fig. 1, the dual polarized plate antenna further includes a reflection plate 6, and the dual polarized one-to-eight impedance module 1, the balun 2, and the dual polarized radiating element 3 are all disposed on the front surface of the reflection plate 6. The reflecting plate 6 and the radiating plate are plate-shaped structures, and the formed antenna is plate-shaped and has the characteristics of small volume, stable performance, light weight and convenient installation. In addition, in the embodiment, microstrip lines are adopted as a feed network design, and compared with conventional coaxial cable feed, the problems that antenna parameters are affected due to factors such as welding, coaxial cable carrier line length and the like can be avoided.
It should be noted that, as shown in fig. 5, the dual-polarized plate antenna further includes an N-type connector 7, where the N-type connector 7 is disposed on the back surface of the reflecting plate 6, an output end of the N-type connector 7 is electrically connected to the feed point 11, and an input end of the N-type connector 7 is used for inputting a signal to be transmitted. As shown in fig. 2, the upper side is the front surface of the reflection plate 6, and the lower side is the back surface of the reflection plate 6.
It is worth to say that a unmanned aerial vehicle topography monitoring device uses the dual polarized plate antenna. By using the dual-polarized plate-shaped antenna to utilize 5G network transmission, the remote signal transmission of the unmanned aerial vehicle terrain monitoring device can be realized.
The unmanned aerial vehicle terrain monitoring device comprises a power supply circuit, a wake-up dormancy circuit, an MCU and a plurality of image acquisition circuits, wherein the power supply circuit, the wake-up dormancy circuit, the MCU and the image acquisition circuits are arranged on the unmanned aerial vehicle; the image acquisition circuits are used for acquiring images of a plurality of angles of the terrain to be monitored; the pictures of the terrain to be monitored are in one-to-one correspondence with the image acquisition circuits;
the output end of the power supply circuit is electrically connected with the input end of the wake-up dormancy circuit and the power input end of the MCU respectively; the power supply circuit provides electric energy for the MCU so as to ensure that the MCU can work normally;
the awakening dormancy circuit is respectively and electrically connected with all the image acquisition circuits in a bidirectional manner, and is electrically connected with the enabling output end of the MCU;
the awakening dormancy circuit is used for conducting a loop between the power input end of the first image acquisition circuit and the power supply circuit according to the time set by the MCU; the circuit is also used for receiving the high level of the previous image acquisition circuit and then conducting the loop between the power input end of the next image acquisition circuit and the power supply circuit;
the signal output end of the image acquisition circuit is electrically connected with the signal input end of the MCU, the signal output end of the MCU is electrically connected with the feed point 11 of the dual-polarized plate-shaped antenna, and the dual-polarized radiation unit 3 of the dual-polarized plate-shaped antenna is in communication connection with an upper computer positioned at a base station through wireless signals.
In unmanned aerial vehicle topography monitoring devices, through awakening dormancy circuit drives image acquisition circuit work, be in the image acquisition circuit need work the time just awaken corresponding circuit, be in the image acquisition circuit does not need work, just make its dormancy to make image acquisition circuit be in the state of minimum energy consumption, furthest practice thrift the electric energy, improved the durability of the battery in the power supply circuit, and then need not frequently change the battery, satisfied the reliability requirement of long-range topography monitoring system. In this embodiment, the image acquisition circuit includes a camera, and after the camera is dormant by using the wake-up dormancy circuit, electric energy can be greatly saved.
The MCU has an automatic dormancy awakening function, and when the MCU does not need to work, the MCU automatically enters a dormancy mode, so that the energy consumption is reduced, and when the MCU needs to work, the MCU can automatically awaken. For example, the MCU will wake up when the set time of the MCU is reached or when the MCU sends a signal, where the set time of the MCU is the sampling frequency of the image acquisition circuit, the longer the set time, the larger the sampling frequency, and the smaller the energy consumption in the same time period.
As shown in fig. 7 and 8, after reaching the time set by the MCU, the MCU sends a trigger signal to the wake-up sleep circuit through its own enable output end, the wake-up sleep circuit will conduct the loop between the power input end of the first image acquisition circuit and the power supply circuit after receiving the trigger signal, the first image acquisition circuit wakes up from the sleep state and starts working to acquire the first picture of the terrain to be monitored after getting power, wherein after the first image acquisition circuit acquires the first picture of the terrain to be monitored, the first image acquisition circuit will send a high level signal to the wake-up sleep circuit, the wake-up sleep circuit will conduct the loop between the power input of the second image acquisition circuit and the power supply circuit after receiving the high level signal sent by the first image acquisition circuit, the second image acquisition circuit wakes up from a dormant state and starts working after being electrified to acquire a second picture of the terrain to be monitored, so that the wake-up dormant circuit can activate all the image acquisition circuits sequentially, the MCU can acquire pictures of a plurality of angles of the terrain to be monitored, the MCU sends low-level signals to the wake-up dormant circuit, a loop between the power supply circuit and the power input ends of all the image acquisition circuits is cut off, then the MCU can pass through the pictures of the plurality of angles and input the pictures to a feed point 11 of the dual-polarized plate-shaped antenna, and the pictures of the different angles are processed by the upper computer and then are matched with a terrain template stored in the upper computer under a 5G network, and change information of the terrain is obtained.
Preferably, the wake-up sleep circuit comprises n power supply output terminalsAnd n level inputs->The power supply input end of the image acquisition circuit is +.>Is the power input end of the nth image acquisition circuit, the power input end of the image acquisition circuit is +.>And the power supply output terminal->One-to-one correspondence, the level output end of the image acquisition circuit is +.>The level output end of the nth image acquisition circuit is used for the level output end of the image acquisition circuitAnd the level input terminal->One-to-one correspondence, wherein n is an integer greater than or equal to 1;
the power output end of the awakening dormancy circuitAnd the power input end of the corresponding image acquisition circuit>An electrical connection, the level input end of the wake-up sleep circuit is +>Level output terminal of the corresponding image acquisition circuit>Is electrically connected with the power supply.
After reaching the time set by the MCU, the MCU sends a trigger signal to the wake-up sleep circuit through the self enabling output end of the MCU, and the wake-up sleep circuit receives the trigger signal, and then the MCU outputs a trigger signal to the wake-up sleep circuitThe wake-up sleep circuit converts the voltage of the power supply circuit into an output power signal and outputs the output power signal from the power output terminal VOUT1 of the wake-up sleep circuit (i.e., when n=1)) To the power supply input VCC1 of the first image acquisition circuit (i.e., -when n=1)>) And the power output end VCC1 of the first image acquisition circuit receives the output power signal and then can be electrified to start working.
After the first image acquisition circuit acquires the first image of the terrain to be monitored, the first image acquisition circuit outputs LOUT1 (i.e., when n=1)) To the level input LIN2 of the wake-up sleep circuit (i.e., -1)>I.e. n=2 +.>) Transmitting a high level to cause the wake-up sleep circuit to output a power signal from its own power supply output VOUT2 (i.e., +.>) To the power supply input VCC2 of the second image acquisition circuit (i.e., -when n=2>) And the power input end VCC2 of the second image acquisition circuit receives the output power signal and then can be electrified to start working. Thus, according to the thought, the rest image acquisition circuits are awakened in sequence and are powered on in sequence.
Alternatively, as shown in FIGS. 7 and 8, the wake-up sleep circuit includes n low dropout linear regulatorsThe low dropout linear regulator +.>And the power supply output end of the wake-up dormancy circuit>One-to-one correspondence, all the low dropout linear regulators +.>Is>The parallel connection is electrically connected with the output end of the power supply circuit; the low dropout linear regulator +.>The output end of the (a) is the power supply output end of the wake-up dormancy circuit>The method comprises the steps of carrying out a first treatment on the surface of the The low dropout linear regulator +.>Is used as the level input end of the wake-up sleep circuit>The method comprises the steps of carrying out a first treatment on the surface of the The low dropout linear regulator +.>The output end of the (a) is the power supply output end of the wake-up dormancy circuit>The method comprises the steps of carrying out a first treatment on the surface of the Wherein n is an integer greater than or equal to 1;
the MCU comprises a timing module, when n=1, the low dropout linear regulatorIs a sampling voltage of (a)The input end is electrically connected with the timing module, and the timing module is used for setting the time for the low dropout linear voltage stabilizer>And transmits a high level signal.
The timing module is built in the MCU for timing according to the MCU internal clock, when the accumulated time of the timing module reaches the set time, the timing module will send the first LDO1 (n=1 time) to the wake-up sleep circuit via the MCU enable output terminal) Is to be added to the sampling voltage input terminal (i.e., to the level input terminal +.>) Transmitting a trigger signal, wherein the trigger signal is a high level signal, and the wake-up sleep circuit will output a power signal from a power output terminal VOUT1 of the wake-up sleep circuit (n=1 +)>) To the power supply input VCC1 of the first of said image acquisition circuits (n=1 +.>) The power supply output VCC1 of the first of the detection circuits (n=1 +.>) And after receiving the output electric energy signal, the electric energy can be obtained to start working. The level output LOUT1 of the first one of said image acquisition circuits (n=1 +.>) To a second LDO2 (n=2 +.>) Is to be added to the sampling voltage input terminal (i.e., to the level input terminal +.>) Transmitting a trigger signal, wherein the trigger signal is a high level signal, and the wake-up sleep circuit will output a power signal from a power output terminal VOUT2 of the wake-up sleep circuit (n=2 +.>) To the power supply input VCC2 of the second of said image acquisition circuits (n=2 +.>) The power supply output VCC2 of the second acquisition circuit (when n=2) And after receiving the output electric energy signal, the electric energy can be obtained to start working. The same applies to the communication between the third low dropout linear regulator LDO3 and the third image acquisition circuit as shown in fig. 8.
The low dropout linear voltage regulatorThe circuit structure of the power supply circuit is an existing circuit structure, a sampling voltage input end is electrically connected with a non-inverting input end of a comparison amplifier, an output end of a power supply circuit is electrically connected with a inverting input end of the comparison amplifier, when a signal of the sampling voltage input end is a high-level signal, electric energy is stably output to a corresponding image acquisition circuit, and when the signal of the sampling voltage input end is a high-level signal, electric energy is not output to the corresponding image acquisition circuit.
The embodiments of the present invention have been described in detail above with reference to the accompanying drawings, but the present invention is not limited to the described embodiments. It will be apparent to those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, and yet fall within the scope of the invention.

Claims (10)

1. A dual polarized plate antenna, characterized in that: the dual-polarized radiating system comprises two dual-polarized one-to-eight impedance modules, eight balun and eight dual-polarized radiating units;
the two dual-polarization one-to-eight impedance modules are electrically connected through a feed point;
the dual-polarization one-to-eight impedance module comprises an impedance input end, a first impedance, two second impedances, two third impedances and four impedance output ends, wherein the second impedances correspond to the third impedances one by one, and each third impedance is matched with the two impedance output ends; the feed point is electrically connected with one end of the first impedance through the impedance input end, one ends of the two second impedances are connected in parallel and then are electrically connected with the other end of the first impedance, the other end of the second impedance is electrically connected with the third impedance, and one ends of the two impedance output ends are connected in parallel and then are electrically connected with the third impedance;
the impedance output ends are in one-to-one correspondence with the balun, the balun is in one-to-one correspondence with the dual-polarized radiating units, and the other ends of the impedance output ends are electrically connected with the corresponding dual-polarized radiating units through the balun.
2. A dual polarized plate antenna according to claim 1, characterized in that: the impedance input end has a resistance of 50 ohms, the first impedance has a resistance of 25 ohms, the second impedance has a resistance of 50 ohms, the third impedance has a resistance of 25 ohms, and the impedance output end has a resistance of 50 ohms.
3. A dual polarized plate antenna according to claim 1, characterized in that: four impedance output ends of the dual-polarization one-eight impedance module are divided into a positive 45-degree impedance unit and a negative 45-degree impedance unit, wherein the positive 45-degree impedance unit consists of two impedance output ends, and the negative 45-degree impedance unit consists of the remaining two impedance output ends.
4. A dual polarized plate antenna according to claim 1, characterized in that: the dual-polarized radiation unit is a biconical vibrator.
5. A dual polarized plate antenna according to claim 1, characterized in that: the dual-polarized plate-shaped antenna further comprises a reflecting plate, and the dual-polarized one-to-eight impedance module, the balun and the dual-polarized radiating unit are all arranged on the front face of the reflecting plate.
6. A dual polarized plate antenna according to claim 5, characterized in that: the dual-polarized plate-shaped antenna further comprises an N-type connector, the N-type connector is arranged on the back surface of the reflecting plate, the output end of the N-type connector is electrically connected with the feed point, and the input end of the N-type connector is used for inputting signals to be transmitted.
7. Unmanned aerial vehicle topography monitoring devices, its characterized in that: use of a dual polarized plate antenna according to any one of claims 1-6.
8. The unmanned aerial vehicle terrain monitoring device of claim 7, wherein: the unmanned aerial vehicle comprises a power supply circuit, a wake-up dormancy circuit, an MCU and a plurality of image acquisition circuits, wherein the power supply circuit, the wake-up dormancy circuit, the MCU and the image acquisition circuits are arranged on the unmanned aerial vehicle; the image acquisition circuits are used for acquiring images of a plurality of angles of the terrain to be monitored;
the output end of the power supply circuit is electrically connected with the input end of the wake-up dormancy circuit and the power input end of the MCU respectively;
the awakening dormancy circuit is respectively and electrically connected with all the image acquisition circuits in a bidirectional manner, and is electrically connected with the enabling output end of the MCU;
the awakening dormancy circuit is used for conducting a loop between the power input end of the first image acquisition circuit and the power supply circuit according to the time set by the MCU; the circuit is also used for receiving the high level of the previous image acquisition circuit and then conducting the loop between the power input end of the next image acquisition circuit and the power supply circuit;
the signal output end of the image acquisition circuit is electrically connected with the signal input end of the MCU, the signal output end of the MCU is electrically connected with the feed point of the dual-polarized plate-shaped antenna, and the dual-polarized radiation unit of the dual-polarized plate-shaped antenna is in communication connection with an upper computer positioned at a base station through wireless signals.
9. The unmanned aerial vehicle terrain monitoring device of claim 8, wherein: the wake-up sleep circuit comprises n power supply output endsAnd n level inputs->The power supply input end of the image acquisition circuit is +.>Is the power input end of the nth image acquisition circuit, the power input end of the image acquisition circuit is +.>And the power supply output terminal->One-to-one correspondence, the level output end of the image acquisition circuit is +.>Is the level output end of the nth image acquisition circuit, and the level output end of the image acquisition circuit is +.>And the level input terminal->One-to-one correspondence, wherein n is an integer greater than or equal to;
the power output end of the awakening dormancy circuitAnd the power input end of the image acquisition circuit corresponds to the power input end of the image acquisition circuitAn electrical connection, the level input end of the wake-up sleep circuit is +>Level output terminal of the corresponding image acquisition circuit>Is electrically connected with the power supply.
10. The unmanned aerial vehicle terrain monitoring device of claim 9, wherein: the wake-up sleep circuit comprises n low dropout linear voltage regulatorsThe low dropout linear regulator +.>And the power supply output end of the wake-up dormancy circuit>One-to-one correspondence, all the low dropout linear regulators +.>Is>The parallel connection is electrically connected with the output end of the power supply circuit; the low dropout linear regulator +.>The output end of the (a) is the power supply output end of the wake-up dormancy circuit>The method comprises the steps of carrying out a first treatment on the surface of the The low dropout linear regulator +.>Is used as the level input end of the wake-up sleep circuit>The method comprises the steps of carrying out a first treatment on the surface of the The low dropout linear regulator +.>The output end of the (a) is the power supply output end of the wake-up dormancy circuit>The method comprises the steps of carrying out a first treatment on the surface of the Wherein n is an integer greater than or equal to 1;
the MCU comprises a timing module, when n=1, the low dropout linear regulatorIs electrically connected with the timing module, and the timing module is used for supplying the low dropout linear regulator with the sample voltage at a set time>And transmits a high level signal.
CN202311489068.6A 2023-11-09 2023-11-09 Dual-polarized plate-shaped antenna and unmanned aerial vehicle terrain monitoring device using same Pending CN117335133A (en)

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WO2014056439A1 (en) * 2012-10-10 2014-04-17 华为技术有限公司 Feeding network, antenna and dual-polarized antenna array feeding circuit
CN105763836A (en) * 2014-12-17 2016-07-13 天津长城科安电子科技有限公司 Remote sensing platform image acquisition and processing system based on UAV
CN106358016A (en) * 2016-08-31 2017-01-25 山东信通电子股份有限公司 Transmission line monitoring method and equipment
CN109599657A (en) * 2018-11-29 2019-04-09 安徽大学 It is a kind of based on antenna array and function divide feeding network integrated design towards 5G base-station antenna array and its design method
CN114243280A (en) * 2021-12-30 2022-03-25 杭州海康威视数字技术股份有限公司 Ultra-wide bandwidth beam dual-polarized antenna and wireless communication device
CN115882216A (en) * 2021-09-29 2023-03-31 上海华为技术有限公司 Antenna unit, antenna and communication device

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2014056439A1 (en) * 2012-10-10 2014-04-17 华为技术有限公司 Feeding network, antenna and dual-polarized antenna array feeding circuit
CN105763836A (en) * 2014-12-17 2016-07-13 天津长城科安电子科技有限公司 Remote sensing platform image acquisition and processing system based on UAV
CN106358016A (en) * 2016-08-31 2017-01-25 山东信通电子股份有限公司 Transmission line monitoring method and equipment
CN109599657A (en) * 2018-11-29 2019-04-09 安徽大学 It is a kind of based on antenna array and function divide feeding network integrated design towards 5G base-station antenna array and its design method
CN115882216A (en) * 2021-09-29 2023-03-31 上海华为技术有限公司 Antenna unit, antenna and communication device
CN114243280A (en) * 2021-12-30 2022-03-25 杭州海康威视数字技术股份有限公司 Ultra-wide bandwidth beam dual-polarized antenna and wireless communication device

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