UAV data transmission system and method

Abstract

The present invention discloses a data transmission system and method for unmanned aerial vehicles, and relates to the field of flight control technology. The system includes a ground control subsystem and a remote control subsystem; the ground control subsystem includes a ground control module connected to a launch platform, a message data module wirelessly connected to a global positioning system, and the message data module is also connected to the ground control module; the remote control subsystem includes a remote control module connected to the ground control module, and a mainboard module connected to the remote control module; the message data module receives differential message data sent by the global positioning system, and sends the differential message data to the ground control module; after the ground control module sends the differential message data to the launch platform, it receives measurement and control data sent by the launch platform, and sends the measurement and control data to the remote control module; when the remote control module receives the measurement and control data within a preset time, it sends the measurement and control data to the mainboard module; the mainboard module processes the measurement and control data. The present invention improves the reliability of data transmission for unmanned aerial vehicles.

Description

Technical Field

[0001] The present invention relates to the field of flight control technology, and in particular to a data transmission system and method for an unmanned aerial vehicle. Background Art

[0002] In the related technology, traditional drones are usually remotely controlled by a remote controller. During the remote control of the drone, the drone's measurement and control data is directly sent to the remote controller via wireless transmission; however, since the wireless transmission link is easily affected by external factors and may become abnormal, it usually threatens the data transmission security of the drone. Summary of the invention

[0003] The main purpose of the present invention is to provide a UAV data transmission system and method, aiming to solve the technical problem that when the existing remote control UAV is used, the abnormal wireless data link threatens the data transmission security of the UAV.

[0004] To achieve the above object, the present invention adopts the following technical solution:

[0005] In a first aspect, the present invention provides a UAV data transmission system, the system comprising a ground control subsystem and a remote control subsystem;

[0006] The ground control subsystem includes a ground control module connected to the launch platform, a message data module wirelessly connected to the global positioning system, and the message data module is also connected to the ground control module;

[0007] The remote control subsystem includes a remote control module connected to the ground control module, and a main board module connected to the remote control module;

[0008] A message data module, used for receiving differential message data sent by the global positioning system, and sending the differential message data to the ground control module;

[0009] The ground control module is used to send the differential message data to the launch platform, receive the measurement and control data sent by the launch platform, and send the measurement and control data to the remote control module;

[0010] The remote control module is used to send the measurement and control data to the main board module when the measurement and control data is received within a preset time;

[0011] The main board module is used to process the measurement and control data.

[0012] Optionally, the remote control subsystem further comprises a wireless data module connected to the remote control module, and the wireless data module is also wirelessly connected to the launch platform;

[0013] The ground control module is also used to send differential message data to the remote control module;

[0014] The remote control module is further used to send the differential message data to the wireless data module when the measurement and control data is not received within a preset time;

[0015] The wireless data module is used to send the differential message data to the launch platform, receive the wireless measurement and control data sent by the launch platform, and send it to the main board module through the remote control module;

[0016] The main board module is also used to process wireless measurement and control data.

[0017] Optionally, the wireless data module includes a wireless measurement and control chip and a wireless measurement and control antenna;

[0018] The wireless measurement and control chip is connected to the remote control module, the wireless measurement and control antenna is connected to the wireless measurement and control chip, and the wireless measurement and control antenna is also wirelessly connected to the launch platform.

[0019] Optionally,

[0020] The remote control module is also used to generate an alarm signal when no measurement and control data is received within a preset time and when no wireless measurement and control data is received within a preset time;

[0021] The mainboard module is also used to output an alarm prompt signal according to the alarm signal.

[0022] Optionally, the remote control subsystem further comprises a first interface module connected to the ground control module, the remote control module and the wireless data module respectively;

[0023] The first interface module is used to send the measurement and control data sent by the ground control module to the remote control module; or

[0024] After the differential message data sent by the remote control module is sent to the wireless data module, the wireless measurement and control data sent by the wireless data module is sent to the remote control module.

[0025] Optionally, the ground control subsystem further comprises a second interface module connected to the ground control module, the first interface module and the lift platform respectively;

[0026] The second interface module is used to send the measurement and control data sent by the launch platform to the ground control module, and then send the measurement and control data to the first interface module; or

[0027] The differential message data sent by the ground control module is sent to the first interface module.

[0028] Optionally, the first interface module and the second interface module are both RS422 interfaces.

[0029] Optionally,

[0030] The ground control module is also used to output the measurement and control signals of the UAV based on the measurement and control data.

[0031] Optionally, the ground control subsystem further includes a human-computer interaction module connected to the ground control module;

[0032] The human-computer interaction module is used to output the measurement and control information of the UAV according to the measurement and control signals.

[0033] In a second aspect, the present invention further provides a drone data transmission method, which is applied to a drone data transmission system, and the method comprises:

[0034] Receiving differential message data sent by the global positioning system through the message data module of the ground control subsystem, and sending the differential message data to the ground control module of the ground control subsystem;

[0035] After sending the differential message data to the launch platform of the UAV through the ground control module, the measurement and control data sent by the launch platform is received, and the measurement and control data is sent to the remote control module of the remote control subsystem;

[0036] When the remote control module receives the measurement and control data within a preset time, the measurement and control data is sent to the main board module of the remote control subsystem;

[0037] The measurement and control data are processed through the mainboard module.

[0038] The present invention provides a data transmission system and method for an unmanned aerial vehicle. The system receives differential message data sent by a global positioning system through a message data module of a ground control subsystem, and sends the differential message data to a ground control module of the ground control subsystem. After the differential message data is sent to a launch platform of the unmanned aerial vehicle through the ground control module, measurement and control data sent by the launch platform is received, and the measurement and control data is sent to a remote control module of a remote control subsystem. When the measurement and control data is received within a preset time through the remote control module, the measurement and control data is sent to a mainboard module of the remote control subsystem. The measurement and control data is processed through the mainboard module.

[0039] Therefore, in the process of remote controlling the UAV, when an abnormality occurs in the wireless transmission link between the remote control subsystem and the UAV, the ground control subsystem can send the differential message data of the global positioning system to the UAV's launch platform through wired transmission, and send the measurement and control data sent by the UAV's launch platform to the remote control subsystem for processing, thereby avoiding the impact of the abnormality of the wireless transmission link on the security of data transmission and improving the reliability of the UAV's data transmission. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0041] Figure 1 This is a schematic structural diagram of a first embodiment of a UAV data transmission system of the present invention;

[0042] Figure 2 This is a schematic diagram of the structure of the second embodiment of the UAV data transmission system of the present invention;

[0043] Figure 3 Schematic diagram of the flow chart of the first embodiment of the UAV data transmission method of the present invention.

[0044] The realization of the purpose, functional features and advantages of the present invention will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0045] In order to make the purpose, technical solution and advantages of the present invention clearer, the technical solution in the embodiment of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiment of the present invention. Obviously, the described embodiment is only a part of the embodiment of the present invention, not all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0046] It should be understood that the specific embodiments described herein are only used to explain the present invention, and are not used to limit the present invention.

[0047] In the present invention, the term "includes", "comprising" or any other variation thereof is intended to cover non-exclusive inclusion, so that a device or system including a series of elements includes not only those elements, but also includes other elements not explicitly listed, or also includes elements inherent to such a device or system. In the absence of more restrictions, an element defined by the sentence "comprising..." does not exclude the presence of other identical elements in the device or system including the element.

[0048] In addition, in the present invention, unless otherwise clearly specified and limited, the terms "connection", "fixed", etc. should be understood in a broad sense. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances. If there are descriptions involving "first", "second", etc. in the embodiments of the present invention, the descriptions of "first", "second", etc. are only used for descriptive purposes, and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features.

[0049] In view of the technical problem that the abnormal wireless data link threatens the data transmission security of the drone during the existing remote control of the drone, the present invention provides a drone data transmission system and method, and the overall idea is as follows:

[0050] The system includes a ground control subsystem and a remote control subsystem; the ground control subsystem includes a ground control module connected to a launch platform, a message data module connected to a global positioning system, and the message data module is also connected to the ground control module; the remote control subsystem includes a remote control module connected to the ground control module, and a mainboard module connected to the remote control module; the message data module is used to receive differential message data sent by the global positioning system and send the differential message data to the ground control module; the ground control module is used to receive measurement and control data sent by the launch platform after sending the differential message data to the launch platform, and send the differential message data and measurement and control data to the remote control module; the remote control module is used to send the differential message data and measurement and control data to the mainboard module when receiving the differential message data and measurement and control data within a preset time; the mainboard module is used to process the differential message data and measurement and control data.

[0051] The present invention provides a data transmission system and method for an unmanned aerial vehicle. In the process of remote controlling an unmanned aerial vehicle, when an abnormality occurs in a wireless transmission link between a remote control subsystem and the unmanned aerial vehicle, a ground control subsystem can send differential message data of a global positioning system to a launch platform of the unmanned aerial vehicle through wired transmission, and send measurement and control data and differential message data sent by the launch platform of the unmanned aerial vehicle to the remote control subsystem for processing, thereby avoiding the influence of the abnormality of the wireless transmission link on the data transmission security and improving the reliability of the data transmission of the unmanned aerial vehicle.

[0052] The general unmanned aerial vehicle data transmission system and method of the present invention are described in detail below with reference to the accompanying drawings and specific implementation methods.

[0053] Embodiment 1

[0054] Reference Figure 1 to Figure 2 , Figure 1 This is a schematic diagram of the structure of the first embodiment of the UAV data transmission system of the present invention. Figure 2 This is a schematic diagram of the structure of the second embodiment of the unmanned aerial vehicle data transmission system of the present invention; this embodiment provides an unmanned aerial vehicle data transmission system, the system includes a ground control subsystem and a remote control subsystem;

[0055] The ground control subsystem includes a ground control module connected to the launch platform, a message data module wirelessly connected to the global positioning system, and the message data module is also connected to the ground control module;

[0056] The remote control subsystem includes a remote control module connected to the ground control module, and a main board module connected to the remote control module;

[0057] A message data module, used for receiving differential message data sent by the global positioning system, and sending the differential message data to the ground control module;

[0058] The ground control module is used to send the differential message data to the launch platform, receive the measurement and control data sent by the launch platform, and send the measurement and control data to the remote control module;

[0059] The remote control module is used to send the measurement and control data to the main board module when the measurement and control data is received within a preset time;

[0060] The main board module is used to process the measurement and control data.

[0061] In this embodiment, the ground control subsystem may include one or more control devices connected to the launch platform of the multi-rotor UAV, and the remote control subsystem may include a remote control device wirelessly connected to the UAV. Among them, the message data module may be an RTK (Real-time kinematic) receiving module; the ground control module includes a first microcontroller, which can receive the measurement and control data of the launch platform, and the measurement and control data may include environmental information, location information and flight status information collected by the UAV mounting equipment; the launch platform can send differential message data to the flight control module of the UAV, and the flight control module of the UAV includes an RTK mobile station, so the flight control module of the UAV can obtain the location information of the UAV according to the differential message data; it should be noted that the ground control module can process the measurement and control data, generate the measurement and control signal corresponding to the measurement and control data of the UAV, and send the measurement and control signal to the human-computer interaction device, and output the UAV information corresponding to the measurement and control data of the UAV to the user through the human-computer interaction device according to the measurement and control signal.

[0062] In the specific implementation, the differential message data sent by the global positioning system is received through the message data module of the ground control subsystem, and the differential message data is sent to the ground control module; the differential message data is sent to the launch platform through the ground control module, the measurement and control data sent by the launch platform is received, and the differential message data and the measurement and control data are sent to the remote control module of the remote control subsystem; through the remote control module, if the differential message data and the measurement and control data are received within the preset time, the differential message data and the measurement and control data are sent to the main board module; through the main board module, the differential message data and the measurement and control data are processed to obtain the measurement and control signal of the UAV.

[0063] Specifically, Figure 2 As shown, the ground control subsystem also includes a human-computer interaction module connected to the ground control module;

[0064] The human-computer interaction module is used to output the measurement and control information of the UAV according to the measurement and control signals.

[0065] In this embodiment, the human-computer interaction module may include input and output devices such as a display, keyboard, and mouse arranged on the control device. The measurement and control information of the UAV can also be output through the display. Correspondingly, the user can also manually input the control instructions and planned trajectory of the UAV through the human-computer interaction module, and send the UAV control signal to the flight control module through the ground control module according to the control instructions and planned trajectory to realize the flight control of the UAV.

[0066] In the specific implementation, the message data module of the ground control subsystem receives the differential message data sent by the global positioning system, and sends the differential message data to the ground control module; the ground control module sends the differential message data to the UAV launch platform, and receives the measurement and control data sent by the UAV launch platform; then, the UAV measurement and control signal is generated according to the measurement and control data, and the measurement and control signal is sent to the human-computer interaction module; the measurement and control information of the UAV is output through the human-computer interaction module, so that the user can monitor the UAV in real time; accordingly, the human-computer interaction module receives the control instructions and planned trajectory of the UAV according to the user's manual operation, and sends the control instructions and planned trajectory to the ground control module; the ground control module generates a control signal according to the control instruction and planned trajectory, and sends the control signal to the UAV launch platform, so that the launch platform controls the flight state and flight trajectory of the UAV according to the control signal.

[0067] In addition, in this embodiment, the remote control module includes a second microcontroller; the main board module is the main board of the UAV remote control, and the main board module can process the measurement and control data to obtain the corresponding measurement and control signal, and send the measurement and control signal to the remote control interaction module of the remote control, and output the measurement and control information of the UAV to the user through the remote control interaction module; wherein the remote control interaction module may include a display interface and an operation unit on the remote control, etc., and the user may also input UAV remote control commands and planned trajectories through the remote control interaction module to remotely control the UAV; the preset time can be set according to actual usage requirements; for example, the preset time is 1 second.

[0068] In a specific implementation, if the remote control module receives the measurement and control data sent by the ground control subsystem within 1 second, the measurement and control data will be sent to the main board module, so that the main board module processes the measurement and control data to obtain corresponding measurement and control signals.

[0069] The present embodiment provides a UAV data transmission system. During the process of remote controlling the UAV, when an abnormality occurs in the wireless transmission link between the remote control subsystem and the UAV, the ground control subsystem can send the differential message data of the global positioning system to the UAV's launch platform through wired transmission, and send the measurement and control data sent by the UAV's launch platform to the remote control subsystem for processing, thereby avoiding the impact of the abnormality of the wireless transmission link on the data transmission security and improving the reliability of the UAV data transmission.

[0070] Embodiment 2

[0071] Further, see Figure 2 , Figure 2 Schematic diagram of the structure of the second embodiment of the unmanned aerial vehicle data transmission system of the present invention. This embodiment provides a unmanned aerial vehicle data transmission system. Based on the above-mentioned embodiment 1, the remote control subsystem further includes a wireless data module connected to the remote control module, and the wireless data module is also wirelessly connected to the launch platform;

[0072] The ground control module is also used to send differential message data to the remote control module;

[0073] The remote control module is further used to send the differential message data to the wireless data module when the measurement and control data is not received within a preset time;

[0074] The wireless data module is used to send the differential message data to the launch platform, receive the wireless measurement and control data sent by the launch platform, and send it to the main board module through the remote control module;

[0075] The main board module is also used to process wireless measurement and control data.

[0076] In this embodiment, the ground control module can also send differential message data to the remote control module. When the remote control module does not receive the measurement and control data within the preset time, the wired transmission is stopped and the wireless data module is switched to perform wireless data transmission with the launch platform. The mainboard module processes the wireless measurement and control data to obtain the corresponding wireless measurement and control signal, and sends the wireless measurement and control signal to the remote control interaction module of the remote controller, and outputs the measurement and control information of the UAV to the user through the remote control interaction module. During the wireless transmission process, the remote control module and the ground control subsystem can continue to receive the low-frequency data packets sent by the launch platform. When the remote control module detects that the measurement and control data are received again within the preset time, the ground control subsystem can continue to receive the low-frequency data packets sent by the launch platform. Stop wireless transmission and switch to wired transmission that communicates with the launch platform through the ground control subsystem; wherein, when switching from wireless transmission to wired transmission, or from wired transmission to wireless transmission, the remote control module can also generate a switching signal, and send the switching signal to the mainboard module, and the mainboard module can generate a corresponding switching prompt signal according to the switching signal, prompting the user that the current switched data transmission method is wired transmission or wireless transmission; for example, when switching from wireless transmission to wired transmission, the switching prompt signal can be a prompt text such as "Warning: Use wired"; when switching from wired transmission to wireless transmission, the switching prompt signal can be a prompt text such as "Warning: Use wireless".

[0077] In the specific implementation, when the remote control module does not receive the measurement and control data within the preset time, the differential message data sent by the ground control module is sent to the launch platform through the wireless data module, and then the wireless measurement and control data sent by the launch platform is received through the wireless data module, and the wireless measurement and control signal is sent to the main board module; the wireless measurement and control data is processed by the main board module to obtain the wireless measurement and control signal of the UAV.

[0078] This embodiment provides a UAV data transmission system, which determines through the remote control subsystem whether the UAV measurement and control data sent by the ground control subsystem is received within a preset time, and determines whether the data transmission with the UAV is carried out through wired transmission or wireless transmission, thereby realizing two UAV data transmission methods and improving the versatility of the UAV data transmission system.

[0079] Specifically,

[0080] The remote control module is also used to generate an alarm signal when no measurement and control data is received within a preset time and when no wireless measurement and control data is received within a preset time;

[0081] The mainboard module is also used to output an alarm prompt signal according to the alarm signal.

[0082] In this embodiment, the alarm prompt signal is used to prompt the user that the remote control subsystem is disconnected from the launch platform, wherein the alarm prompt signal can be a prompt text such as "Alarm: Disconnected"; when the remote control subsystem is disconnected from the launch platform, the flight control module of the UAV can make an independent judgment and control the UAV to perform an automatic return and landing.

[0083] In the specific implementation, when the remote control module receives neither the measurement and control data nor the wireless measurement and control data within the preset time, an alarm signal is generated to indicate that the remote control subsystem is disconnected from the drone. The mainboard module generates an alarm prompt signal based on the alarm signal to prompt the user that the remote control subsystem is disconnected from the drone.

[0084] This embodiment provides a drone data transmission system, which prompts the user of a communication failure between the remote control subsystem and the drone based on whether the remote control subsystem receives a signal, so that the user can quickly discover the failure and handle it in time.

[0085] Specifically, Figure 2 As shown, the wireless data module includes a wireless measurement and control chip and a wireless measurement and control antenna;

[0086] The wireless measurement and control chip is connected to the remote control module, the wireless measurement and control antenna is connected to the wireless measurement and control chip, and the wireless measurement and control antenna is also wirelessly connected to the launch platform.

[0087] In this embodiment, as shown in Table 1 below, the parameters of the wireless data module are:

[0088] Table 1

[0089] project parameter Frequency band L-Band Signal interface RS422(115200bps) Information speed 12.8kbps size 125mm×64mm×18mm weight 130g Power consumption 9W Antenna Type Omnidirectional antenna

[0090] In addition, as shown in Table 2 below, the interface definition of the wireless measurement and control chip is:

[0091] Table 2

[0092] Serial number definition Level definition Level direction equipment 2 Synchronous serial port image RS422- Load Remote Control- RS422- enter Airborne 1 Synchronous serial port image RS422+ Load Remote Control+ RS422+ enter Airborne 4 Synchronous serial port clock RS422- Payload Telemetry - RS422- enter Airborne 3 Synchronous serial port clock RS422+ Payload telemetry+ RS422+ enter Airborne 6 5V power supply Flight control remote control- RS422- enter Airborne 5 spare land land 8 land land Flight control remote control+ RS422+ enter Airborne 7 spare land land 9 Flight control telemetry+ RS422+ Output Airborne 10 land land 11 Flight control telemetry- RS422- Output Airborne 12 land land

[0093] Specifically, Figure 2 As shown, the remote control subsystem also includes a first interface module connected to the ground control module, the remote control module and the wireless data module respectively;

[0094] The first interface module is used to send the measurement and control data sent by the ground control module to the remote control module; or

[0095] After the differential message data sent by the remote control module is sent to the wireless data module, the wireless measurement and control data sent by the wireless data module is sent to the remote control module.

[0096] In this embodiment, the first interface module may include an interface unit U1 and an interface unit U2.

[0097] In the specific implementation, the measurement and control data sent by the ground control module is sent to the remote control module through the interface unit U2, or the differential message data sent by the ground control module is sent to the remote control module through the interface unit U2. If the remote control module does not receive the measurement and control data sent by the ground control subsystem within the preset time, the differential message data is sent to the wireless data module through the interface unit U1. After the differential message data is sent to the launch platform through the wireless data module, the measurement and control data sent by the launch platform is received, and the wireless measurement and control data is sent to the remote control module through the interface unit U1.

[0098] Specifically, Figure 2 As shown, the ground control subsystem further includes a second interface module connected to the ground control module, the first interface module and the lift platform respectively;

[0099] The second interface module is used to send the measurement and control data sent by the launch platform to the ground control module, and then send the measurement and control data to the first interface module; or

[0100] The differential message data sent by the ground control module is sent to the first interface module.

[0101] In this embodiment, the second interface module may include an interface unit U3 and an interface unit U4.

[0102] In the specific implementation, the measurement and control data sent by the launch platform is sent to the ground control module of the ground control subsystem through the interface unit U3, and the measurement and control data sent by the ground control module is sent to the interface unit U2 through the interface unit U4, or the differential message data sent by the ground control module is sent to the interface unit U2 through the interface unit U4.

[0103] Specifically, the first interface module and the second interface module are both RS422 interfaces.

[0104] In this embodiment, interface unit U1, interface unit U2, interface unit U3 and interface unit U4 are all RS422 interfaces, and the ground control module and remote control module, the ground control module and the launch platform, and the remote control module and the wireless data module all achieve wired transmission through the RS422 interface.

[0105] This embodiment provides a UAV data transmission system, in which the remote control subsystem and the ground control subsystem are connected by wire through an RS422 interface.

[0106] Embodiment 3

[0107] Reference Figure 3 , Figure 3This is a flow chart of the first embodiment of the method for transmitting data via a drone of the present invention. Based on the same inventive concept, this embodiment provides a method for transmitting data via a drone, which is applied to a drone data transmission system. The method includes:

[0108] Step S100: receiving differential message data sent by the global positioning system through the message data module of the ground control subsystem, and sending the differential message data to the ground control module of the ground control subsystem;

[0109] Step S200: After sending the differential message data to the launch platform of the UAV through the ground control module, the measurement and control data sent by the launch platform is received, and the measurement and control data is sent to the remote control module of the remote control subsystem;

[0110] Step S300: When the remote control module receives the measurement and control data within a preset time, the measurement and control data is sent to the main board module of the remote control subsystem;

[0111] Step S400: Processing the measurement and control data through the mainboard module.

[0112] The present embodiment provides a method for transmitting data via a UAV. During the process of remote controlling a UAV, when an abnormality occurs in the wireless transmission link between the remote controller and the UAV, the ground control subsystem can send the differential message data of the global positioning system to the UAV's launch platform through wired transmission, and send the measurement and control data sent by the UAV's launch platform to the remote control subsystem for processing, thereby avoiding the impact of the abnormality of the wireless transmission link on the security of data transmission and improving the reliability of UAV data transmission.

[0113] It should be noted that, since the steps executed by the method of this embodiment are the same as the steps of the aforementioned system embodiment, its specific implementation method and the technical effects that can be achieved can refer to the aforementioned embodiment and will not be repeated here.

[0114] The above are only preferred embodiments of the present invention, and are not intended to limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the present invention specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A drone data transmission system, characterized in that: The system includes a ground control subsystem and a remote control subsystem; The ground control subsystem includes a ground control module connected to the launch platform of the UAV, and a message data module wirelessly connected to the global positioning system, and the message data module is also connected to the ground control module; The remote control subsystem includes a remote control module connected to the ground control module and a mainboard module connected to the remote control module; The message data module is used to receive the differential message data sent by the global positioning system and send the differential message data to the ground control module; The ground control module is used for receiving the measurement and control data sent by the launch platform after sending the differential message data to the launch platform, and sending the measurement and control data to the remote control module; The remote control module is used to send the measurement and control data to the main board module when receiving the measurement and control data within a preset time; The mainboard module is used to process the measurement and control data; The remote control subsystem also includes a wireless data module connected to the remote control module, and the wireless data module is also wirelessly connected to the lift platform; The ground control module is further used to send the differential message data to the remote control module; The remote control module is further configured to send the differential message data to the wireless data module when the measurement and control data is not received within the preset time; The wireless data module is used to receive the wireless measurement and control data sent by the launch platform after sending the differential message data to the launch platform, and send it to the main board module through the remote control module; The mainboard module is also used to process the wireless measurement and control data.

2. The system according to claim 1, characterized in that The wireless data module includes a wireless measurement and control chip and a wireless measurement and control antenna; The wireless measurement and control chip is connected to the remote control module, the wireless measurement and control antenna is connected to the wireless measurement and control chip, and the wireless measurement and control antenna is also wirelessly connected to the launch platform.

3. The system according to claim 1, characterized in that The remote control module is further configured to generate an alarm signal when the measurement and control data is not received within the preset time and the wireless measurement and control data is not received within the preset time; The mainboard module is also used to output an alarm prompt signal according to the alarm signal.

4. The system according to claim 1, characterized in that The remote control subsystem further comprises a first interface module connected to the ground control module, the remote control module and the wireless data module respectively; The first interface module is used to send the measurement and control data sent by the ground control module to the remote control module; or After the differential message data sent by the remote control module is sent to the wireless data module, the wireless measurement and control data sent by the wireless data module is sent to the remote control module.

5. The system according to claim 4, characterized in that The ground control subsystem further comprises a second interface module connected to the ground control module, the first interface module and the lift platform respectively; The second interface module is used to send the measurement and control data sent by the launch platform to the ground control module, and then send the measurement and control data to the first interface module; or The differential message data sent by the ground control module is sent to the first interface module.

6. The system according to claim 5, characterized in that The first interface module and the second interface module are both RS422 interfaces.

7. The system according to claim 1, characterized in that The ground control module is also used to output the measurement and control signal of the UAV according to the measurement and control data.

8. The system according to claim 7, characterized in that The ground control subsystem also includes a human-computer interaction module connected to the ground control module; The human-computer interaction module is used to output the measurement and control information of the UAV according to the measurement and control signal.

9. A method for transmitting data from an unmanned aerial vehicle, characterized in that: Applied to a UAV data transmission system, the method comprises: Receiving differential message data sent by the global positioning system through the message data module of the ground control subsystem, and sending the differential message data to the ground control module of the ground control subsystem; After sending the differential message data to the launch platform of the UAV through the ground control module, the measurement and control data sent by the launch platform is received, and the measurement and control data is sent to the remote control module of the remote control subsystem; When the measurement and control data is received within a preset time by the remote control module, the measurement and control data is sent to the main board module of the remote control subsystem; Processing the measurement and control data through the mainboard module; Sending the differential message data to the remote control module through the ground control module; When the measurement and control data is not received within the preset time, the differential message data is sent to the wireless data module by the remote control module; After sending the differential message data to the launch platform through the wireless data module, the wireless measurement and control data sent by the launch platform is received and sent to the main board module through the remote control module; The wireless measurement and control data is processed through the mainboard module.

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