Unmanned aerial vehicle communication circuit, device and system

Abstract

The utility model provides an unmanned aerial vehicle communication circuit, device and system, and particularly relates to an unmanned aerial vehicle communication technology, the unmanned aerial vehicle communication circuit comprises a navigation unit circuit, an image transmission unit circuit, a signal conversion circuit, a micro-control unit and a signal generation circuit, the signal conversion circuit comprises three radiators, one radiator is electrically connected with the navigation unit circuit, and the other two radiators are electrically connected with the image transmission unit circuit respectively; the micro-control unit is electrically connected with the navigation unit circuit and the image transmission unit circuit respectively; the micro-control unit at least comprises a preset input pin; the output end of the signal generation circuit is electrically connected with a preset input pin, and the signal generation circuit selects a signal from preset operation mode signals for output; and the micro-control unit performs data transmission by using the navigation unit circuit, the image transmission unit circuit and the radiator connected with the corresponding units according to a signal input by the preset input pin. The integration level of the unmanned aerial vehicle communication device can be improved, and the unmanned aerial vehicle communication device is convenient to carry.

Description

TECHNICAL FIELD

[0001] The utility model relates to unmanned plane communication technical field especially, relate to a kind of unmanned plane communication circuit, device and system. BACKGROUND

[0002] With the continuous popularization and application of intelligent equipment in the field of agriculture, the development of plant protection unmanned plane also ushered in a new chapter. First, in the aspect of technological innovation, the performance and function of plant protection unmanned plane have been significantly improved. For example, more advanced navigation system and sensor technology enable unmanned plane to perform plant protection tasks more accurately, even under complex terrain and weather conditions, it can maintain efficient operation. Secondly, in the application field, the use of plant protection unmanned plane is no longer limited to traditional pesticide spraying and fertilization, but has been expanded to crop growth monitoring, pest warning and precision agriculture data collection and other aspects.

[0003] However, the existing plant protection unmanned plane communication system usually needs multiple independent electronic devices such as base station device, repeater, etc. to realize functions such as positioning, guiding, etc. respectively, which has disadvantages in operation convenience. UTILITY MODEL CONTENT

[0004] Therefore, in order to solve the above problems, the purpose of the utility model embodiment is to provide an unmanned plane communication circuit, device and system, which can improve the integration of unmanned plane communication device and facilitate operation carrying.

[0005] In a first aspect, the utility model provides an unmanned plane communication circuit, comprising:

[0006] a navigation unit circuit,

[0007] a figure transmission unit circuit,

[0008] a signal conversion circuit, the signal conversion circuit includes at least three radiators, wherein one radiator is electrically connected with the navigation unit circuit, and the other at least two radiators are respectively electrically connected with the figure transmission unit circuit;

[0009] a micro control unit, the micro control unit is respectively electrically connected with the navigation unit circuit, the figure transmission unit circuit; the micro control unit at least includes a preset input pin;

[0010] a signal generation circuit, the output end of the signal generation circuit is electrically connected with the preset input pin, the signal generation circuit selects signal output from preset operation mode signal, and the preset operation mode signal at least includes first mode signal, second mode signal;

[0011] The micro control unit is used for data transmission in corresponding operation mode by the navigation unit circuit, the image transmission unit circuit and the radiator connected with the corresponding unit according to the signal input by the preset input pin.

[0012] In an embodiment of the unmanned aerial vehicle communication circuit, the first mode signal is a base station mode signal, and when the signal output by the signal generation circuit is a base station mode signal, the data transmission in corresponding operation mode by the navigation unit circuit, the image transmission unit circuit and the radiator connected with the corresponding unit circuit comprises:

[0013] The radiator connected with the navigation unit circuit receives positioning wireless signals and converts, and after the first data signal is obtained through signal conversion, the first data signal is input to the navigation unit circuit;

[0014] The navigation unit circuit generates a second data signal after receiving the first data signal;

[0015] The micro control unit generates a third data signal after receiving the second data signal and transmits the third data signal to the image transmission unit circuit;

[0016] The image transmission unit circuit generates a fourth data signal after receiving the third data signal;

[0017] The signal conversion circuit converts the fourth data signal, and the fourth data signal is transmitted to the remote controller end by the radiator connected with the image transmission unit circuit.

[0018] In an embodiment of the unmanned aerial vehicle communication circuit, the second mode signal is a guide mode signal, and when the signal output by the signal generation circuit is a guide mode signal, the data transmission in corresponding operation mode by the navigation unit circuit, the image transmission unit circuit and the radiator connected with the corresponding unit circuit comprises:

[0019] The radiator corresponding to the navigation unit circuit receives positioning wireless signals, and after the fifth data signal is obtained through the signal conversion circuit, the fifth data signal is input to the navigation unit circuit;

[0020] The navigation unit circuit generates a sixth data signal after receiving the fifth data signal;

[0021] The micro control unit generates a seventh data signal after receiving the sixth data signal and transmits the seventh data signal to the image transmission unit circuit;

[0022] The image transmission unit circuit generates an eighth data signal after receiving the seventh data signal;

[0023] The signal conversion circuit converts the eighth data signal, and the eighth data signal is transmitted to the unmanned aerial vehicle end by the radiator corresponding to the image transmission unit circuit.

[0024] In an embodiment of the UAV communication circuit, the preset operation mode signal further comprises a relay mode signal, when the signal output by the signal generation circuit is the relay mode signal, the micro control unit uses the image transmission unit circuit and the radiator connected with the corresponding unit circuit to perform data transmission in the corresponding operation mode, comprising:

[0025] The radiator corresponding to the image transmission unit circuit receives the wireless signal sent by the UAV end, and inputs the ninth data signal obtained after conversion by the signal conversion circuit to the image transmission unit circuit; the image transmission unit circuit generates the tenth data signal after receiving the ninth data signal, and the signal conversion circuit converts the tenth data signal and sends it to the remote controller end by the radiator corresponding to the image transmission unit circuit; and / or,

[0026] The radiator corresponding to the image transmission unit circuit receives the wireless signal sent by the remote controller end, and inputs the eleventh data signal obtained after conversion by the signal conversion circuit to the image transmission unit circuit; the image transmission unit circuit generates the twelfth data signal after receiving the eleventh data signal, and the signal conversion circuit converts the twelfth data signal and sends it to the UAV end by the radiator corresponding to the image transmission unit circuit.

[0027] In an embodiment of the UAV communication circuit, further comprising a short-range wireless communication circuit electrically connected with the micro control unit, the preset operation mode signal further comprises a mapping mode signal; the signal conversion circuit further comprises a radiator electrically connected with the short-range wireless communication circuit; the short-range wireless communication circuit comprises a Bluetooth communication chip and / or an infrared communication chip;

[0028] The micro control unit uses the navigation unit circuit and the radiator connected with the corresponding unit circuit to perform data transmission in the corresponding operation mode, comprising:

[0029] The radiator corresponding to the navigation unit circuit receives the positioning wireless signal, and inputs the thirteenth data signal obtained after conversion by the signal conversion circuit to the navigation unit circuit;

[0030] The navigation unit circuit generates the fourteenth data signal after receiving the thirteenth data signal;

[0031] The micro control unit generates the fifteenth data signal after receiving the fourteenth data signal to transmit to the short-range wireless communication circuit;

[0032] The short-range wireless communication circuit generates the sixteenth data signal after receiving the fifteenth data signal;

[0033] The signal conversion circuit converts the sixteenth data signal, and a radiator corresponding to the close-range wireless communication circuit sends out a signal to the remote controller end.

[0034] In an embodiment of the UAV communication circuit, an instruction inputter is further connected to the signal generation circuit, and the signal generation circuit receives instructions output by the instruction inputter to select a signal corresponding to a corresponding instruction from the first mode signal and the second mode signal.

[0035] The instruction inputter includes a key inputter, a sound inputter, and / or a light inputter.

[0036] In an embodiment of the UAV communication circuit, a mode state indicator, a power indicator, a frequency state indicator, and / or a differential global positioning system state indicator are further electrically connected to the micro control unit, and each of the indicators includes a vibration indicator, a sound indicator, and / or a light indicator.

[0037] In an embodiment of the UAV communication circuit, a power supply circuit and a charging circuit are included, the power supply circuit is electrically connected to the micro control unit, the power supply circuit includes a rechargeable battery for providing power, and the rechargeable battery is electrically connected to the charging circuit.

[0038] In an embodiment of the UAV communication circuit, a thermal sensing circuit is further electrically connected to the micro control unit, the thermal sensing circuit includes a thermistor for sensing the temperature of a preset area, and the power supply circuit includes a power control switch circuit.

[0039] The micro control unit receives a temperature electrical signal transmitted by the thermistor to control the shutdown of the charging circuit and / or the power control switch circuit.

[0040] In an embodiment of the UAV communication circuit, the navigation unit circuit includes a UM482 chip, the image transmission unit circuit includes a P301-D image transmission chip, and the micro control unit includes a GD32F305VCT6 chip.

[0041] In a second aspect, the utility model provides a kind of UAV communication device, including installation matrix, and as described above UAV communication circuit, the UAV communication circuit is installed on the installation matrix.

[0042] In a third aspect, the utility model further provides a kind of UAV communication system, including UAV end, remote controller end, further including as described above UAV communication device, and the UAV communication device is respectively communicated with the UAV end, the remote controller end;

[0043] The UAV end has a spreader and / or an atomizer for spraying liquid medicine.

[0044] Advantages:

[0045] In the utility model, the micro control unit is used for carrying out corresponding data transmission of operation mode according to the signal of the preset input pin input, utilizing the navigation unit circuit, the map transmission unit circuit and the radiator connected with the corresponding unit circuit, thus can realize the function that traditional needs the cooperation of multiple communication operation equipment and / or communication device, improves the integration of electronic equipment, is also favorable to the miniaturization, portable development of unmanned plane communication device, promotes the convenience of the related personnel of plant protection operation to go out, can enrich unmanned plane operation scene to a certain extent. BRIEF DESCRIPTION OF DRAWINGS

[0046] Figure 1 The principle block diagram of the unmanned plane communication circuit provided by the utility model under an embodiment is shown in the figure.

[0047] Figure 2 The application structure schematic diagram of the unmanned plane communication circuit provided by the utility model under an embodiment is shown in the figure.

[0048] Figure 3 The principle block diagram of the unmanned plane communication system provided by the utility model under an embodiment is shown in the figure. DETAILED DESCRIPTION

[0049] The utility model will be further explained in detail in combination with the figures and specific embodiments. For the step numbering in the following embodiments, it is only set for the convenience of elaboration and explanation, and the order between steps is not limited in any way, and the execution order of each step in the embodiment can be adaptively adjusted according to the understanding of the person skilled in the art.

[0050] The utility model aims at the shortage that the existing plant protection operation needs to carry many equipment, through the ingenious integration of each unit circuit and the multiplexing of signal transceiving radiator, realizes the high integration of multiple functions, and can improve the convenience of the related personnel of plant protection operation to go out.

[0051] Referring to Figure 1 The circuit module structure diagram of the unmanned plane communication circuit provided by the utility model under an embodiment is shown in the figure. The unmanned plane communication circuit 1 provided by the embodiment can include navigation unit circuit 11, map transmission unit circuit 12, signal conversion circuit 13, micro control unit (Microcontroller Unit, MCU) 14 and signal generation circuit 15, wherein:

[0052] The navigation unit circuit 11 is mainly used for obtaining positioning information, such as a Global Navigation Satellite System (GNSS) unit circuit.

[0053] The image transmission unit circuit 12 is mainly used for transmitting control data and images (which can include pictures and / or videos) taken by the UAV in real time to the remote controller end or other display devices, such as a chip and circuit using integrated Orthogonal Frequency Division Multiplexing (OFDM) and Multiple-Input Multiple-Output (MIMO) technology.

[0054] The signal conversion circuit 13 is mainly used for mutual conversion between electromagnetic waves and electrical signals, including at least three radiators, one of which corresponds to the navigation unit circuit 11 for signal transmission and reception, and the other at least two radiators correspond to the image transmission unit circuit 12 for signal transmission and reception. Accordingly, the navigation unit circuit 11 obtains position information through one radiator; the image transmission unit circuit 12 realizes control data and image transmission through the other two radiators. It can be understood that each radiator is different, and different radiators correspond to different signal frequency bands, or different radiators correspond to different signal frequency bands with only part of the frequency bands overlapping. It can be understood that at least two radiators corresponding to the image transmission unit circuit 12 can realize multi-transmission and multi-reception or multi-transmission and multi-reception.

[0055] The micro control unit 14 is mainly used for basic logic control, such as simple switching of modes, processing of sensing signals and power supply, charge and discharge control of rechargeable batteries, etc. Here, the micro control unit 14 is electrically connected to the navigation unit circuit 11 and the image transmission unit circuit 12, and the micro control unit 14 at least includes a preset input pin, which can be used to input an operation mode signal.

[0056] The signal generation circuit 15 is configured to generate a working mode signal, and an output end of the signal generation circuit 15 is electrically connected with the preset input pin. The signal generation circuit 15 selects a signal from preset working mode signals as the working mode signal, and preferably, the selection is one or the other. Here, the preset working mode signals at least include a first mode signal (such as a base station mode signal) and a second mode signal (such as a guiding mode signal). Of course, the unmanned aerial vehicle communication circuit 1 can further include an instruction input device (not shown in the figure) connected with the signal generation circuit 15. The signal generation circuit 15 receives an instruction output by the instruction input device to select a signal corresponding to the corresponding instruction from the first mode signal and the second mode signal and output the signal.

[0057] When the micro control unit 14 is working, it is configured to perform data transmission in a corresponding working mode according to a signal input by the preset input pin, by using the navigation unit circuit 11, the image transmission unit circuit 12 and a radiator connected with the corresponding unit circuit. Thus, the function that needs to be realized by multiple traditional communication working devices and / or communication devices can be realized, the integration of the electronic device is improved, the miniaturization and portability of the unmanned aerial vehicle communication device are met, the convenience of the plant protection working personnel going out for work is improved, and the unmanned aerial vehicle working scene can be enriched to a certain extent. Specifically, when the first mode signal is the base station mode signal and the second mode signal is the guiding mode signal, the base station function and the hoisting and guiding function corresponding to multiple traditional devices such as the base station device and the hoisting and guiding device can be realized. The base station device and the hoisting and guiding device are integrated in the unmanned aerial vehicle communication circuit provided by the utility model, the integration is improved, the space occupation of the unmanned aerial vehicle communication device is reduced, and the unmanned aerial vehicle communication device is more portable.

[0058] In a specific embodiment of the utility model, when the signal output by the signal generation circuit 15 is the base station mode signal, the data transmission in the corresponding working mode by using the navigation unit circuit 11, the image transmission unit circuit 12 and the radiator connected with the corresponding unit circuit can specifically include:

[0059] The radiator corresponding to the navigation unit circuit 11 receives a positioning wireless signal, and after the first data signal is obtained by the signal conversion circuit 13, the first data signal is input to the navigation unit circuit 11. Then, the navigation unit circuit 11 generates a second data signal after receiving the first data signal.

[0060] The micro control unit 14 generates a third data signal after receiving the second data signal and transmits the third data signal to the image transmission unit circuit 12. The image transmission unit circuit 12 generates a fourth data signal after receiving the third data signal, and the signal conversion circuit 13 converts the fourth data signal, which is emitted to the remote controller end by the radiator corresponding to the image transmission unit circuit 12, so as to realize the carrier phase difference technology base station (Real Time Kinematic, RTK) function of the corresponding base station mode, and the plant protection operator can obtain accurate position data based on the mode, which is beneficial to ensure that the unmanned aerial vehicle can accurately fly according to the preset flight route.

[0061] In another specific embodiment of the utility model, when the signal output by the signal generation circuit 15 is a guide mode signal, the data transmission of the corresponding operation mode is realized by using the navigation unit circuit 11, the image transmission unit circuit 12 and the radiator connected with the corresponding unit circuit.

[0062] The radiator corresponding to the navigation unit circuit 11 receives the positioning wireless signal, and inputs the fifth data signal obtained after conversion by the signal conversion circuit 13 to the navigation unit circuit 11. Then, the navigation unit circuit 11 generates the sixth data signal after receiving the fifth data signal.

[0063] The micro control unit 14 generates the seventh data signal after receiving the sixth data signal and transmits the seventh data signal to the image transmission unit circuit 12. The image transmission unit circuit 12 generates the eighth data signal after receiving the seventh data signal, and the signal conversion circuit 13 converts the eighth data signal, which is emitted to the unmanned aerial vehicle end by the radiator corresponding to the image transmission unit circuit 12, so as to realize the function of guiding the hoisting operation corresponding to the guide mode, and make the hoisting operation more accurate and fast.

[0064] In still another specific embodiment of the utility model, the preset operation mode signal can also include a relay mode signal. Correspondingly, when the signal output by the signal generation circuit 15 is a relay mode signal, the micro control unit 14 uses the image transmission unit circuit 12 and the radiator connected with the corresponding unit circuit to perform data transmission of the corresponding operation mode, which can specifically include:

[0065] The wireless signal emitted by the unmanned aerial vehicle end corresponding to the radiator of the image transmission unit circuit 12 is converted by the signal conversion circuit 13 to obtain the ninth data signal and then input to the image transmission unit circuit 12. After that, the image transmission unit circuit 12 receives the ninth data signal to generate the tenth data signal. Then, the signal conversion circuit 13 receives and converts the tenth data signal, and emits it to the remote controller end by the radiator corresponding to the image transmission unit circuit 12, so as to realize the communication relay function of the downlink data chain corresponding to the relay mode, and expand the communication distance of the unmanned aerial vehicle end to the remote controller end.

[0066] Of course, corresponding to the downlink data chain communication, in the uplink data chain communication, the wireless signal emitted by the remote controller end corresponding to the radiator of the image transmission unit circuit 12 is converted by the signal conversion circuit 13 to obtain the eleventh data signal and then input to the image transmission unit circuit 12, and the image transmission unit circuit 12 receives the eleventh data signal to generate the twelfth data signal. Then, the signal conversion circuit 13 receives and converts the twelfth data signal, and emits it to the unmanned aerial vehicle end by the radiator corresponding to the image transmission unit circuit 12, so as to realize the communication relay function of the uplink data chain corresponding to the relay mode, and expand the communication distance of the remote controller end to the unmanned aerial vehicle end.

[0067] It can be understood that in the implementation of the relay communication function, the uplink data chain and the downlink data chain can be selected according to the different communication relay requirements of the plant protection operation personnel, and of course, for some cases where more radiators and supporting circuits are installed, the communication relay of the uplink data chain and the downlink data chain can be realized at the same time.

[0068] In another specific embodiment of the utility model, the unmanned aerial vehicle communication circuit 1 can further include a short-range wireless communication circuit (not shown in the figure) electrically connected with the micro control unit 14, and the preset operation mode signal can further include a surveying mode signal as described above. The signal conversion circuit 13 can further include a radiator corresponding to the signal transceiving of the short-range wireless communication circuit. Here, the short-range wireless communication circuit can specifically include a Bluetooth communication chip and / or an infrared communication chip, and preferably includes a Bluetooth communication chip.

[0069] When the signal output by the signal generation circuit 15 is a surveying mode signal, the micro control unit 14 transmits data corresponding to the operation mode by using the navigation unit circuit 11 and the radiator connected with the corresponding unit circuit, specifically including:

[0070] The radiation body corresponding to the navigation unit circuit 11 receives the positioning wireless signal, and after the signal conversion circuit 13 converts the thirteenth data signal, the thirteenth data signal is input to the navigation unit circuit 11, and the navigation unit circuit 11 generates the fourteenth data signal after receiving the thirteenth data signal, and the micro control unit 14 generates the fifteenth data signal after receiving the fourteenth data signal to transmit to the near distance wireless communication circuit.

[0071] The near distance wireless communication circuit generates the sixteenth data signal after receiving the fifteenth data signal, and the signal conversion circuit 13 converts the sixteenth data signal, and the radiation body corresponding to the near distance wireless communication circuit is emitted to the remote controller end, so as to realize the unmanned aerial vehicle mapping operation function corresponding to the mapping mode, and the plant protection operation personnel can complete the rapid and accurate drawing of the plant protection operation area boundary based on the mode.

[0072] It can be understood that, in order to facilitate the plant protection operation personnel to know the current running state of the unmanned aerial vehicle communication circuit, the unmanned aerial vehicle communication circuit 1 can further include a mode state indicator, a power indicator, a frequency state indicator and / or a differential global positioning system (DGPS) state indicator electrically connected with the micro control unit 14, and each of the indicators can include a vibration indicator, a sound indicator and / or a light indicator. Among them, the mode state indicator is mainly used to indicate the operation mode currently performed by the unmanned aerial vehicle communication device using the current unmanned aerial vehicle communication circuit; the power indicator is mainly used to indicate the power supply power of the unmanned aerial vehicle communication device using the current unmanned aerial vehicle communication circuit; the frequency state indicator is mainly used to indicate the state of frequency matching between the unmanned aerial vehicle communication device using the current unmanned aerial vehicle communication circuit and the unmanned aerial vehicle end or the remote controller end; and the differential global positioning system state indicator is mainly used to indicate the positioning state of the unmanned aerial vehicle communication device using the current unmanned aerial vehicle communication circuit.

[0073] In the utility model, the unmanned aerial vehicle communication circuit 1 can further include a power supply circuit (not shown in the figure) and a charging circuit (not shown in the figure), the power supply circuit is electrically connected with the micro control unit 14, and the power supply circuit can include a rechargeable battery such as a lithium battery, a nickel hydrogen battery and a lead acid battery, and the rechargeable battery is electrically connected with the charging circuit.

[0074] Corresponding to the application of the rechargeable battery, the unmanned aerial vehicle communication circuit 1 can further include a thermal sensing circuit (not shown in the figure) electrically connected with the micro control unit 14, the thermal sensing circuit includes a thermistor for sensing the temperature of a preset area. Correspondingly, the power supply circuit includes a power control switch circuit, and the micro control unit 14 can receive the temperature electrical signal transmitted by the thermistor to control the turn-off of the charging circuit and / or the power control switch circuit.

[0075] Referring to Figure 2 , an application example structure of the utility model in an embodiment. Combined with Figure 1 , the navigation unit circuit 11 can include a UM482 chip, the image transmission unit circuit 12 can include a P301-D image transmission chip, and the micro control unit 14 can include a GD32F305VCT6 chip, which can receive or send positioning data through the UM482 chip and the corresponding radiator, and also can transmit image, control data and relay communication data through the P301-D image transmission chip and the corresponding radiator.

[0076] The GD32F305VCT6 chip can receive the mode signal output by the signal generation circuit, and control according to the corresponding mode signal, to realize the functions of base station, relay, guidance and mapping respectively. Of course, the GD32F305VCT6 chip can also have an interface for power-on input signal to execute power-on logic, in addition, the interface can also be used to input frequency information to realize multiplexing the same interface for frequency operation. Other state indicators, charging circuits and short-range wireless communication circuits are respectively connected with the signal input and output of the GD32F305VCT6 chip, as described above, which will not be repeated here.

[0077] Referring to Figure 3 , the utility model provides an exemplary structure of unmanned aerial vehicle communication device and unmanned aerial vehicle communication system, the unmanned aerial vehicle communication device can include mounting base (not shown in the figure) and unmanned aerial vehicle communication circuit as above, the unmanned aerial vehicle communication circuit is installed on the mounting base, can realize multiple communication operation equipment and / or communication device respectively corresponding base station function, communication relay function, hoisting guide function of traditional base station equipment, relay and hoisting guide device, provide the integration of equipment, meet the miniaturization, portable development needs of unmanned aerial vehicle communication device, help to improve the convenience of the personnel going out for work related to plant protection, to a certain extent, enrich the unmanned aerial vehicle operation scene.

[0078] In the utility model, the unmanned plane communication system can include unmanned plane end, remote controller end and the unmanned plane communication device as described above, the unmanned plane communication device can respectively communicate with the unmanned plane end, the remote controller end, wherein, the unmanned plane end has sower, and / or atomizer for spraying liquid medicine.

[0079] The above is a specific description of the preferred embodiment of the utility model, but the utility model is not limited to the described embodiment, and those skilled in the art can make various equivalent modifications or replacements without departing from the spirit of the utility model, and these equivalent modifications or replacements are all included in the range defined by the claims of the present application.

Claims

1. A drone communication circuit, characterized by, The application relates to a navigation unit circuit, a map transmission unit circuit, a signal conversion circuit, a micro control unit, a signal generation circuit and a signal transmission method. The signal conversion circuit is electrically connected with the navigation unit circuit and the map transmission unit circuit respectively, and comprises at least three radiators, wherein one radiator corresponds to the navigation unit circuit for signal transmission and reception, and the other at least two radiators correspond to the map transmission unit circuit for signal transmission and reception respectively. The micro control unit is electrically connected with the navigation unit circuit and the map transmission unit circuit respectively, and comprises at least one preset input pin. The signal generation circuit is electrically connected with the preset input pin, and selects a signal output from a preset operation mode signal, wherein the preset operation mode signal comprises at least a first mode signal and a second mode signal. The micro control unit is used for transmitting data in a corresponding operation mode by using the navigation unit circuit, the map transmission unit circuit and the radiators corresponding to the unit circuits according to the signal input by the preset input pin. The first mode signal is a base station mode signal, and when the signal output by the signal generation circuit is the base station mode signal, the data transmission by using the navigation unit circuit, the map transmission unit circuit and the radiators corresponding to the unit circuits in the corresponding operation mode comprises the following steps: The radiator corresponding to the navigation unit circuit receives a positioning wireless signal, converts the signal through the signal conversion circuit to obtain a first data signal, and inputs the first data signal into the navigation unit circuit.

2. The drone communication circuit of claim 1, wherein, The navigation unit circuit generates a second data signal after receiving the first data signal. The micro control unit generates a third data signal after receiving the second data signal and transmits the third data signal to the map transmission unit circuit. The map transmission unit circuit generates a fourth data signal after receiving the third data signal. The signal conversion circuit converts the fourth data signal and transmits the fourth data signal to a remote controller end through the radiator corresponding to the map transmission unit circuit. The second mode signal is a guide mode signal, and when the signal output by the signal generation circuit is the guide mode signal, the data transmission by using the navigation unit circuit, the map transmission unit circuit and the radiators corresponding to the unit circuits in the corresponding operation mode comprises the following steps: The radiator corresponding to the navigation unit circuit receives a positioning wireless signal, converts the signal through the signal conversion circuit to obtain a fifth data signal, and inputs the fifth data signal into the navigation unit circuit.

3. The drone communication circuit of claim 1, wherein, The navigation unit circuit generates a sixth data signal after receiving the fifth data signal. The micro control unit generates a seventh data signal after receiving the sixth data signal and transmits the seventh data signal to the map transmission unit circuit. The map transmission unit circuit generates an eighth data signal after receiving the seventh data signal. The signal conversion circuit converts the eighth data signal and transmits the eighth data signal to a remote controller end through the radiator corresponding to the map transmission unit circuit. ​ ​ 4. The drone communication circuit of claim 1, wherein, The preset operation mode signal further comprises a relay mode signal, when the signal generated by the signal generation circuit is the relay mode signal, the micro control unit uses the image transmission unit circuit and the radiator connected with the corresponding unit circuit to perform data transmission in the corresponding operation mode, comprising: The radiator corresponding to the image transmission unit circuit receives the wireless signal sent by the unmanned aerial vehicle end, and after the ninth data signal is obtained by the signal conversion circuit, it is input to the image transmission unit circuit; the image transmission unit circuit generates the tenth data signal after receiving the ninth data signal, and the signal conversion circuit converts the tenth data signal, and sends it to the remote controller end by the radiator corresponding to the image transmission unit circuit; and / or, The radiator corresponding to the image transmission unit circuit receives the wireless signal sent by the remote controller end, and after the eleventh data signal is obtained by the signal conversion circuit, it is input to the image transmission unit circuit; the image transmission unit circuit generates the twelfth data signal after receiving the eleventh data signal, and the signal conversion circuit converts the twelfth data signal, and sends it to the unmanned aerial vehicle end by the radiator corresponding to the image transmission unit circuit.

5. The drone communication circuit of claim 1, wherein, Further comprising a short distance wireless communication circuit electrically connected with the micro control unit, the preset operation mode signal further comprises a surveying and mapping mode signal; the signal conversion circuit further comprises a radiator corresponding to the signal transceiving of the short distance wireless communication circuit; the short distance wireless communication circuit comprises a Bluetooth communication chip and / or an infrared communication chip; The micro control unit uses the navigation unit circuit and the radiator connected with the corresponding unit circuit to perform data transmission in the corresponding operation mode, comprising: The radiator corresponding to the navigation unit circuit receives the positioning wireless signal, and after the thirteenth data signal is obtained by the signal conversion circuit, it is input to the navigation unit circuit; The navigation unit circuit generates the fourteenth data signal after receiving the thirteenth data signal; The micro control unit generates the fifteenth data signal after receiving the fourteenth data signal to transmit to the short distance wireless communication circuit; The short distance wireless communication circuit generates the sixteenth data signal after receiving the fifteenth data signal; The signal conversion circuit converts the sixteenth data signal, and sends it to the remote controller end by the radiator corresponding to the short distance wireless communication circuit.

6. The drone communication circuit of any one of claims 1 to 5, wherein, Further comprising an instruction input device connected with the signal generation circuit, the signal generation circuit receives the instruction output by the instruction input device to select the signal corresponding to the corresponding instruction from the first mode signal and the second mode signal; Wherein, the instruction input device comprises a key input device, a sound input device and / or a light input device.

7. The drone communication circuit of any one of claims 1 to 5, wherein, Further comprising a mode state indicator, a power indicator, a frequency state indicator and / or a differential global positioning system state indicator electrically connected with the micro control unit, each of the indicators comprises a vibration indicator, a sound indicator and / or a light indicator.

8. The drone communication circuit of any one of claims 1 to 5, wherein, Comprising a power supply circuit and a charging circuit, the power supply circuit is electrically connected with the micro control unit; the power supply circuit comprises a rechargeable battery providing electric energy, and the rechargeable battery is electrically connected with the charging circuit.

9. The drone communication circuit of claim 8, wherein, Further comprising a thermal sensing circuit electrically connected with the micro control unit, the thermal sensing circuit comprising a thermistor for sensing temperature of a preset area; the power supply circuit comprising a power control switch circuit; The micro control unit receives the temperature electric signal transmitted by the thermistor to control the turn-off of the charging circuit and / or the power control switch circuit.

10. The drone communication circuit of any one of claims 1 to 5, wherein, The navigation unit circuit comprises a UM482 chip, the image transmission unit circuit comprises a P301-D image transmission chip, and the micro control unit comprises a GD32F305VCT6 chip.

11. A drone communication device comprising a mounting base, characterized in that The unmanned aerial vehicle communication circuit as claimed in any one of claims 1 to 10 is installed on the mounting base.

12. A UAV communication system comprising a UAV end, a remote controller end, characterized in that, The unmanned aerial vehicle communication device as claimed in claim 11 is further provided, which respectively communicates with the unmanned aerial vehicle end and the remote controller end. The unmanned aerial vehicle end is provided with a spreader and / or an atomizer for spraying liquid medicine.

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