A UAV control system

Abstract

The invention discloses a control system for an unmanned aerial vehicle, comprising a radio frequency management unit, a receiving module for receiving signals, an enhancement module for collecting signals from the receiving module, and a processing module, wherein the processing module receives signals from the enhancement module; the enhancement module comprises a first coupler and a second coupler, and the receiving module receives signals of different frequency bands and performs enhancement processing respectively by the first coupler and the second coupler; compared with the prior art, the radio frequency management unit can search two frequency bands at the same time, can receive more signals and improve the accuracy, and can filter, amplify signals, integrate signals and adjust the impedance of the receiving module; the filter filters out unnecessary clutter and can effectively enhance the performance of the receiving module. The existing single-frequency GPS on the market can only search for no more than 20 satellites under normal circumstances, while the invention can search for more than 40 satellites in each frequency band and can reach centimeter-level accuracy at the highest.

Description

Technical Field

[0001] The present invention relates to the field of unmanned aerial vehicle control, in particular to an unmanned aerial vehicle control system. Background Art

[0002] Unmanned aerial vehicles (UAVs) are unmanned aircraft that are controlled by radio remote control equipment and self-contained program control devices. UAVs are increasingly widely used in both civil and military fields, and the development of UAVs has also attracted the attention of various countries. Track tracking control plays an especially important role in the flight of UAVs, which can further improve the dynamic performance of UAVs and provide a strong guarantee for UAVs to complete various tasks safely and efficiently. High-precision GPS measurements must use carrier phase observations. RTK positioning technology is a real-time dynamic positioning technology based on carrier phase observations. It can provide real-time three-dimensional positioning results of the measuring station in a specified coordinate system and achieve centimeter-level accuracy. The existing single-frequency GPS on the market can only search for no more than 20 satellites under normal circumstances, and the positioning accuracy is relatively low. Summary of the invention

[0003] The purpose of this section is to summarize some aspects of the embodiments of the present invention and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and the abstract of the specification and the title of the invention of this application to avoid blurring the purpose of this section, the abstract of the specification and the title of the invention, and such simplifications or omissions cannot be used to limit the scope of the present invention.

[0004] In view of the above problems and / or the problems existing in the prior art, the present invention is proposed.

[0005] Therefore, the technical problem to be solved by the present invention is that the single-frequency GPS of the existing UAV control system on the market can only search for no more than 20 satellites under normal circumstances, and the positioning accuracy is low.

[0006] To solve the above technical problems, the present invention provides the following technical solutions: a drone control system, comprising a radio frequency management unit, including a receiving module for receiving signals, an enhancement module for collecting signals from the receiving module, and a processing module, wherein the processing module receives signals from the enhancement module; the enhancement module comprises a first coupler and a second coupler, and the receiving module receives signals of different frequency bands and performs enhancement processing by the first coupler and the second coupler respectively.

[0007] As a preferred solution of the drone control system of the present invention, the processing module includes a filtering component, an amplifying component and a directional collecting component, the filtering component is connected to the enhancing module and filters out unnecessary clutter, the amplifying component is connected to the filtering component and amplifies the signal from the filtering component, and the directional collecting component is connected to the amplifying component and mixes the signal of the amplifying component and outputs it to the positioning component.

[0008] As a preferred solution of the drone control system of the present invention, it further includes a processing unit, and the positioning component is connected to the processing unit and sends signals to the processing unit for processing.

[0009] As a preferred solution of the drone control system of the present invention, the filtering component includes a first filter and a second filter, the first filter is connected to the first coupler and filters out unnecessary clutter, and the second filter is connected to the second coupler and filters out unnecessary clutter.

[0010] As a preferred solution of the drone control system described in the present invention, the amplifying component includes a first amplifier and a second amplifier, the first amplifier is connected to the first filter and amplifies the signal of the first filter frequency band, the second amplifier is connected to the second filter and amplifies the signal of the second filter frequency band; the ground terminal of the first amplifier is connected to a first capacitor, and the ground terminal of the second amplifier is connected to a second capacitor.

[0011] As a preferred solution of the drone control system of the present invention, it also includes a communication and navigation unit, including an interrupt module and a communication module, the interrupt module receives instructions and transmits them to the communication module; the processing unit processes the signal received by the radio frequency management unit and sends it to the communication and navigation unit.

[0012] As a preferred solution of the drone control system described in the present invention, the communication module includes a communication chip and a bus chip, the communication chip converts the data of the interrupt module into data that can be received by the processing unit, the communication chip converts the signal received from the outside into data that can be received by the processing unit, and the interrupt module is used to control whether to interrupt the communication with the outside; a first resistor is connected between the interrupt module and the communication chip, and a pin of the communication chip is connected to a third capacitor.

[0013] As a preferred solution of the drone control system of the present invention, it further includes a power supply module, which provides power for the radio frequency management unit, the processing unit and the communication and navigation unit.

[0014] As a preferred solution of the drone control system of the present invention, the power supply module includes a first power supply, a second power supply, and a control chip connected in parallel, and the first power supply and the second power supply are respectively connected to the control chip.

[0015] As a preferred solution of the drone control system of the present invention, it further includes a storage unit, which is connected to the processing unit and stores the logs generated by the processing unit.

[0016] Beneficial effects of the present invention:

[0017] 1. Compared with the prior art, the radio frequency management unit can search two frequency bands at the same time, can receive more signals and improve the accuracy, and adjust the impedance of the receiving module by filtering, amplifying and integrating signals; the purpose of such optimization of the radio frequency management unit is to adjust the impedance to 50 ohms to ensure the excellent performance of the receiving module, and the filter filters out unnecessary clutter, which can effectively enhance the performance of the receiving module. The existing single-frequency GPS on the market can only search for no more than 20 satellites under normal circumstances. The present invention can search for more than 40 satellites in each frequency band, and can reach centimeter-level accuracy at the highest;

[0018] 2. The present invention uses two 60V power supplies to establish a power supply model with a point of load (POL), eliminating the possibility of a single power supply failure causing the device to fail to work, and increasing protection and redundancy on each device. Because it runs at a higher voltage, the current demand of each device is reduced. In the event of a battery failure, critical functions not related to the flight are reduced, and the current demand is intelligently reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. 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 these drawings without creative labor. Among them:

[0020] Figure 1 A schematic diagram of a receiving module in a drone control system according to an embodiment of the present invention;

[0021] Figure 2 A schematic diagram of the circuit connection between a receiving module and an enhancing module in a drone control system according to an embodiment of the present invention;

[0022] Figure 3 A schematic diagram of the connection of a radio frequency management unit in a drone control system according to an embodiment of the present invention;

[0023] Figure 4 A schematic diagram of a circuit of a radio frequency management unit in a drone control system according to an embodiment of the present invention;

[0024] Figure 5 A schematic diagram of a circuit of a communication and navigation unit in a drone control system according to an embodiment of the present invention;

[0025] Figure 6 A schematic diagram of a circuit of a power supply unit in a drone control system according to an embodiment of the present invention;

[0026] Figure 7 A schematic diagram of pin connections of a positioning component in a drone control system according to an embodiment of the present invention;

[0027] Figure 8 A schematic diagram of pin connections of a processing unit in a drone control system according to an embodiment of the present invention;

[0028] Fig. 9 A schematic diagram of pin connections in a drone control system according to an embodiment of the present invention. DETAILED DESCRIPTION

[0029] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings.

[0030] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0031] Secondly, the present invention is described in detail with reference to schematic diagrams. When describing the embodiments of the present invention in detail, for the sake of convenience, the cross-sectional diagrams showing the device structure will not be partially enlarged according to the general scale, and the schematic diagrams are only examples, which should not limit the scope of protection of the present invention. In addition, in actual production, the three-dimensional dimensions of length, width and depth should be included.

[0032] Furthermore, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The term "in one embodiment" that appears in different places in this specification does not necessarily refer to the same embodiment, nor does it refer to a separate or selective embodiment that is mutually exclusive with other embodiments.

[0033] Example 1

[0034] Reference Figures 1-2This embodiment provides a drone control system, including a radio frequency management unit 100, which includes a receiving module 101 for receiving signals, an enhancement module 102 for collecting signals from the receiving module 101, and a processing module 103, wherein the processing module 103 receives signals from the enhancement module 102; the receiving module 101 is an antenna, mainly used to receive satellite signals in the L1 / L2 / L5 frequency band, the enhancement module 102 enhances the L1 / L2 / L5 frequency band signals received by the receiving module 101 and sends them to the processing module 103, further, the enhancement module 102 includes a first coupler 102a and a second coupler 102b, the receiving module 101 receives signals in different frequency bands and enhances them respectively by the first coupler 102a and the second coupler 102b, and the processed signals are sent to the positioning component 104 for positioning. The positioning component 104 uses a ZED-F9P chip.

[0035] Preferably, the first coupler 102a uses HC1400P03, which is a 90° directional coupler and is mainly used to enhance the signal in the L1 frequency band. The second coupler 102b uses HC1400P03, which is also a 90° directional coupler and is mainly used to enhance the signal in the L2 / L5 frequency band. The receiving module 101 can search two frequency bands at the same time and can receive more signals with improved accuracy. The receiving module 101 receives signals in different frequency bands and enhances them respectively by the first coupler 102a and the second coupler 102b. The enhanced L1 / L2 / L5 frequency band signals are sent to the processing module 103 for further processing, including filtering, amplification, and signal integration for easy reception. Specifically, refer to Figure 2 The first coupler 102a uses HC1400P03, the second coupler 102b uses HC1400P03, the pin 1 of the receiving module 101 is connected to the pin 2 of the first coupler 102a, the pin 2 of the receiving module 101 is connected to the pin 1 of the first coupler 102a to send the L1 frequency band signal to the first coupler 102a; the pin 3 of the receiving module 101 is connected to the pin 2 of the second coupler 102b, the pin 4 of the receiving module 101 is connected to the pin 1 of the second coupler 102b to send the L2 / L5 frequency band signal to the second coupler 102b.

[0036] Compared with the prior art, the radio frequency management unit 100 of the present invention performs optimizations such as filtering, signal amplification, signal integration, and adjustment of receiving module impedance, and can search two frequency bands at the same time, thereby receiving more signals and improving accuracy.

[0037] Example 2

[0038] Reference Figures 3 to 9, which is the second embodiment of the present invention, which is based on the previous embodiment and is different from the previous embodiment in that: a drone control system includes a radio frequency management unit 100, which includes a receiving module 101 for receiving signals, an enhancement module 102 for collecting signals from the receiving module 101, and a processing module 103, the processing module 103 receives signals from the enhancement module 102, wherein the receiving module 101 is mainly used to receive satellite signals in the L1 / L2 / L5 frequency band, the enhancement module 102 is connected to the receiving module 101 and is used to enhance the signals in the L1 / L2 / L5 frequency band, and the processing module 103 is connected to the enhancement module 102 to further process the signals enhanced by the enhancement module 102.

[0039] Specifically, the enhancement module 102 includes a first coupler 102a and a second coupler 102b. The first coupler 102a uses HC1400P03, which is a 90° directional coupler and is mainly used to enhance the signal in the L1 frequency band. The second coupler 102b uses HC1400P03, which is also a 90° directional coupler and is mainly used to enhance the signal in the L2 / L5 frequency band. The receiving module 101 can search two frequency bands at the same time, can receive more signals and improve the accuracy. The receiving module 101 receives signals in different frequency bands and performs enhancement processing respectively by the first coupler 102a and the second coupler 102b.

[0040] Further, the processing module 103 includes a filtering component 103a, an amplifying component 103b and a directional collecting component 103c. The filtering component 103a is connected to the enhancing module 102 and filters out unnecessary clutter. The amplifying component 103b is connected to the filtering component 103a and amplifies the signal from the filtering component 103a. The directional collecting component 103c is connected to the amplifying component 103b and mixes the signal of the amplifying component 103b and outputs it to the positioning component 104. The filtering component 103a is connected to the enhancing module 102 to reduce signal interference and filter out unnecessary clutter output from the enhancing module 102. The above-mentioned unnecessary clutter is a signal other than the L1 / L2 / L5 frequency band. The amplifying component 103b is connected to the filtering component 103a, further amplifies the signal of the specific frequency band filtered by the filtering component 103a, and then the directional collecting component 103c mixes the signals of the L1 / L2 / L5 frequency band together and outputs them to the positioning component 104. Preferably, the directional collector 103c uses HC1400P03, which is a directional coupler, which mixes the signals of the L1 / L2 / L5 frequency bands and outputs them to the positioning component 104, wherein the positioning component 104 uses the ZED-F9P positioning component to convert the signals received by the receiving module into data coordinates.

[0041] Furthermore, it also includes a processing unit 200. The positioning component 104 is connected to the processing unit 200 and sends data such as positioning coordinate height to the processing unit 200 for processing. Preferably, the processing unit 200 uses an STM32H753VIT6 processor.

[0042] Preferably, the filtering component 103a includes a first filter 103a-1 and a second filter 103a-2, the first filter 103a-1 adopts a TA1343A filter, the first filter 103a-1 is connected to the first coupler 102a to reduce signal interference and filter out unnecessary clutter, the second filter 103a-2 adopts a TA1104A filter, the second filter 103a-2 is connected to the second coupler 102b to reduce signal interference and filter out unnecessary clutter; the amplifying component 103b includes a first amplifier 103b-1 and a second amplifier 103b-2, the first amplifier 103b-1 adopts a BGA824N6 low-noise amplifier, and the second amplifier 103b-2 uses a BGA855N6 low-noise amplifier, the first amplifier 103b-1 is connected to the first filter 103a-1 and amplifies the L1 frequency band signal output by the first filter 103a-1, the second amplifier 103b-2 is connected to the second filter 103a-2 and amplifies the L2 / L5 frequency band signal output by the second filter 103a-2; preferably, the ground terminal of the first amplifier 103b-1 is connected to a first capacitor 105, the first capacitor 105 reduces the interference of voltage changes on the first amplifier 103b-1, the ground terminal of the second amplifier 103b-2 is connected to a second capacitor 106, the second capacitor 106 reduces the interference of voltage changes on the second amplifier 103b-2.

[0043] Reference Figure 4 The first coupler 102a uses HC1400P03, the second coupler 102b uses HC1400P03, the pin 1 of the receiving module 101 is connected to the pin 2 of the first coupler 102a, the pin 2 of the receiving module 101 is connected to the pin 1 of the first coupler 102a to send the L1 frequency band signal to the first coupler 102a; the pin 3 of the receiving module 101 is connected to the pin 2 of the second coupler 102b, the pin 4 of the receiving module 101 is connected to the pin 1 of the second coupler 102b to send the L2 / L5 frequency band signal to the second coupler 102b.

[0044] The first filter 103a-1 uses a TA1343A filter, the second filter 103a-2 uses a TA1104A filter, the pin 3 of the first coupler 102a is connected to the pin C of the first filter 103a-1, and the pin 3 of the second coupler 102b is connected to the pin B of the second filter 103a-2.

[0045] The first amplifier 103b-1 uses a BGA824N6 low noise amplifier, and the second amplifier 103b-2 uses a BGA855N6 low noise amplifier. Pin 4 of the first amplifier 103b-1 is connected to pin B of the first filter 103a-1, and pin 4 of the second amplifier 103b-2 is connected to pin F of the second filter 103a-2.

[0046] The directional collector 103c uses HC1400P03, and the pin 1 of the directional collector 103c is connected to the pin 3 of the first amplifier 103b-1, and the pin 2 of the directional collector 103c is connected to the pin 3 of the second amplifier 103b-2.

[0047] Reference Figure 7 The positioning component 104 uses a ZED-F9P positioning component, the pin 3 of the directional collector 103c is connected to the pin 2 of the positioning component 104, the pin 6 of the first amplifier 103b-1 is connected to the pin 6 of the second amplifier 103b-2 and then connected to the pin 5 of the positioning component 104. The directional collector 103c mixes the signals of the L1 / L2 / L5 frequency bands and outputs them to the positioning component 104.

[0048] Reference Figure 8 The processing unit 200 adopts the STM32H753VIT6 processor, the pin P14 of the processing unit 200 is connected to the pin 42 of the positioning component 104, the pin P15 of the processing unit 200 is connected to the pin 43 of the positioning component 104, the pin N13 of the processing unit 200 is connected to the pin 46 of the positioning component 104, the pin R8 of the processing unit 200 is connected to the pin 27 of the positioning component 104, the pin P8 of the processing unit 200 is connected to the pin 26 of the positioning component 104, and the processing Pin N14 of processing unit 200 is connected to pin 49 of positioning component 104, pin M15 of processing unit 200 is connected to pin 50 of positioning component 104, pin M14 of processing unit 200 is connected to pin 51 of positioning component 104, pin C14 of processing unit 200 is connected to pin 52 of positioning component 104, pin K15 of processing unit 200 is connected to pin 54 of positioning component 104, and pin L15 of processing unit 200 is connected to pin 53 of positioning component 104.

[0049] Compared with the prior art, the radio frequency management unit 100 of the present invention performs optimizations such as filtering, signal amplification, signal integration, and adjustment of receiving module impedance, and can search two frequency bands at the same time, thereby receiving more signals and improving accuracy.

[0050] The purpose of optimizing the RF management unit 100 is to adjust the impedance to 50 ohms, which can effectively enhance the performance of the receiving module 101. The existing single-frequency GPS on the market can only search for no more than 20 satellites under normal circumstances. After actual testing under the same conditions and positions, the present invention can search for more than 40 satellites in each frequency band, and can achieve a maximum accuracy of centimeters.

[0051] Example 3

[0052] Reference Figures 5 to 9 , which is the third embodiment of the present invention. This embodiment is based on the previous embodiment and is different from the previous embodiment in that it also includes a communication navigation unit 300, which uses a CAN function with an adjustable frequency of up to 8Mhz, including an interrupt module 301 and a communication module 302. The interrupt module 301 uses a photocoupler TLP175A (TPLE, which provides a high-priority CAN bus interrupt function for interrupting external communication of CAN. The interrupt module 301 receives a CAN command and transmits it to the communication module 302; the processing unit 200 processes the signal received by the radio frequency management unit 100 and sends it to the communication navigation unit 300.

[0053] Specifically, the communication module 302 is connected to the interrupt module 301, and the communication module 302 includes a communication chip 302a and a bus chip 302b. The communication chip 302a converts the data of the interrupt module 301 into data that can be received by the processing unit 200; the communication chip 302a uses the CAN communication chip MCP2544FDT to convert the CAN signal into a signal that can be recognized by the processing unit 200, and the bus chip 302b uses the bus chip MCP2517FDT to play a redundant role in converting the signal converted by the communication chip 302a into an SPI signal to ensure normal communication. Preferably, a first resistor 304 is connected between the interrupt module 301 and the communication chip 302a, and a pin of the communication chip 302a is connected to a third capacitor 305. The first resistor 304 limits the current during the interruption, and protects the communication chip 302a (MCP2544FDT). The third capacitor 305 ensures the stability of the circuit.

[0054] Further, see Figure 5 , pin 6 of the interrupt module 301 is connected to pin 6 of the communication chip 302a, pin 4 of the interrupt module 301 is connected to pin 7 of the communication chip 302a, pin 1 of the communication chip 302a is connected to pin 1 of the bus chip 302b, and pin 4 of the communication chip 302a is connected to pin 2 of the bus chip 302b.

[0055] The signal received by the processing unit 200 is converted into standard CAN_H / L by the communication navigation unit 300 to communicate with the external device. Specifically, pin 1 of the communication chip 302a is connected to pin 1 of the bus chip 302b and then connected to pin B4 of the processing unit 200. Pin 4 of the communication chip 302a is connected to pin 2 of the bus chip 302b and then connected to pin A5 of the processing unit 200. Pin A4 of the processing unit 200 is connected to pin 4 of the bus chip 302b. Pin A3 of the processing unit 200 is connected to pin 9 of the bus chip 302b. Pin A1 of the processing unit 200 is connected to pin B4 of the bus chip 302b. Pin 8 of the bus chip 302b is connected, pin E1 of the processing unit 200 is connected to pin 1 of the interrupt module 301, pin D1 of the processing unit 200 is connected to pin 8 of the communication chip 302a, pin F15 of the processing unit 200 is connected to pin 5 of the bus chip 302b, pin PE4 of the processing unit 200 is connected to pin 13 of the bus chip 302b, pin PE5 of the processing unit 200 is connected to pin 12 of the bus chip 302b, pin PE6 of the processing unit 200 is connected to pin 11 of the bus chip 302b, and pin PE2 of the processing unit 200 is connected to pin 10 of the bus chip 302b.

[0056] Example 4

[0057] Reference Figures 6 to 9 , which is the fourth embodiment of the present invention. This embodiment is based on the previous embodiment, and is different from the previous embodiment in that: it also includes a power supply module 400, and the power supply module 400 provides power for the radio frequency management unit 100, the processing unit 200 and the communication navigation unit 300; in this embodiment, two 60V power supplies are used to establish a power supply model with a load point (POL). The load point power supply (POL) is the safest method of distributing power, which is to maintain a high-voltage / high-current battery voltage before the load point, rather than distributing a converted low voltage among multiple power-consuming modules using the same power supply.

[0058] Specifically, the power supply module 400 includes a first power supply 401, a second power supply 402, and a control chip 403 connected in parallel, and the first power supply 401 and the second power supply 402 are respectively connected to the control chip 403. The first power supply 401 and the second power supply 402 both use 5-60V power supplies, and the control chip 403 uses a control chip RT1720, which mainly detects whether the current and voltage are normal. The power supply module 400 eliminates the possibility that a single power supply fails and causes the device to fail to work, because it operates at a higher voltage and distributes power around the device in a more reasonable way, reducing the current demand of each device.

[0059] Further, see Figure 6A fuse and a Schottky diode are arranged between the first power supply 401 and the control chip RT1720, and a fuse and a Schottky diode are arranged between the second power supply 402 and the control chip RT1720, mainly to protect the circuit and prevent power backflow; a starting resistor is connected to pin 6 of the control chip 403, and a sampling resistor is connected between pin 4 and pin 5 of the control chip 403 to detect the current flowing through to ensure that the rear-pole circuit is not damaged due to excessive input current. A sampling resistor is connected between pin 1 of the control chip 403 and pin 2 and pin 9 respectively to detect the output voltage to ensure that the rear-pole circuit is not damaged due to excessive input voltage. A MOS tube is connected between pin 4 and pin 3 of the control chip 403, mainly for isolation, and will be turned on only after the voltage and current detection of the control chip 403 is normal. A capacitor is connected to pin 10 of the control chip 403 to set the time allowed for overvoltage and overcurrent of the control chip RT1720.

[0060] The power supply module 400 also includes a first voltage regulator 404, a second voltage regulator 405, and a third voltage regulator 406 connected to the control chip 403. The first voltage regulator 404 uses an LMR16030 voltage regulator to generate a 5V main power supply, the second voltage regulator 405 uses a MIC5353 voltage regulator to generate a 3.3V power supply, and the third voltage regulator 406 uses a MIC5353 voltage regulator to generate a 1.8V power supply; pin 3 of the first voltage regulator 404 is connected to pin 8 of the control chip 403; pin 4 of the second voltage regulator 405 is connected to the VDD terminal of the processing unit 200, and pin 1 of the third voltage regulator 406 is connected to pin M2 of the processing unit 200.

[0061] Better, refer to Fig. 9 , further comprising a storage unit 500, the storage unit 500 being connected to the processing unit 200 and storing the log generated by the processing unit 200. The storage unit 500 uses an SD card, wherein the storage unit 500 is connected to the processing unit 200 via a connector 2908-05WB-MG.

[0062] The working principle of this embodiment is as follows: the power supply supplies power to the entire product through the connector, the L1 frequency band of the receiving module signal passes through the first coupler 102a and then passes through the first filter 103a-1 and the first amplifier 103b-1 to reach the directional collector 103c, the L2 / L5 frequency band of the receiving module signal passes through the second coupler 102b to reach the second filter 103a-2 and the second amplifier 103b-2 to reach the directional collector 103c, the directional collector 103c integrates the L1 / L2 / L5 frequency bands together and transmits them to the positioning component 104 for positioning, at the same time, the positioning component 104 will send data such as the positioning coordinate height to the processing unit 200 chip for processing, the storage unit 500 is used to store some logs generated by the processing unit 200, and finally the processing unit 200 generates a CAN signal through the communication chip 302a chip in the communication and navigation unit 300, communicates with the outside world through the connector, and the bus chip 302b chip is used for redundancy.

[0063] Importantly, it should be noted that the construction and arrangement of the present application shown in a plurality of different exemplary embodiments are only exemplary. Although only a few embodiments are described in detail in this disclosure, it should be readily understood by those who refer to this disclosure that many modifications are possible (e.g., the size, scale, structure, shape and proportion of various elements, and parameter values ​​(e.g., temperature, pressure, etc.), installation arrangement, use of materials, color, directional changes, etc.) without substantially departing from the novel teachings and advantages of the subject matter described in the application. For example, the element shown as integrally formed can be composed of multiple parts or elements, the position of the element can be inverted or otherwise changed, and the nature or number or position of the discrete element can be changed or changed. Therefore, all such modifications are intended to be included in the scope of the present invention. The order or sequence of any process or method steps can be changed or reordered according to alternative embodiments. In the claims, any "device plus function" clause is intended to cover the structure of performing the function described herein, and is not only structurally equivalent but also equivalent structure. Without departing from the scope of the present invention, other replacements, modifications, changes and omissions can be made in the design, operating conditions and arrangement of the exemplary embodiments. Therefore, the invention is not limited to a specific embodiment, but extends to numerous modifications still falling within the scope of the appended claims.

[0064] Additionally, in order to provide a concise description of exemplary embodiments, all features of an actual embodiment (ie, those features that are not relevant to the best mode presently contemplated for carrying out the invention or those that are not relevant to implementing the invention) may not be described.

[0065] It will be appreciated that in the development of any actual implementation, as in any engineering or design project, numerous implementation-specific decisions may be made. Such a development effort may be complex and time-consuming, but will be a routine task of design, fabrication, and production for those of ordinary skill having the benefit of this disclosure without undue experimentation.

[0066] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. A drone control system, characterized in that: include, A radio frequency management unit (100) comprising a receiving module (101) for receiving signals, an enhancement module (102) for collecting signals from the receiving module (101), and a processing module (103), wherein the processing module (103) receives signals from the enhancement module (102); The enhancement module (102) comprises a first coupler (102a) and a second coupler (102b); the receiving module (101) receives signals in different frequency bands and performs enhancement processing respectively by the first coupler (102a) and the second coupler (102b); The first coupler is a 90° directional coupler for enhancing the signal in the L1 frequency band, and the second coupler is a 90° directional coupler for enhancing the signal in the L2 / L5 frequency band. The enhanced L1 / L2 / L5 frequency band signals are sent to the processing module (103) for further processing, including filtering, amplification, and signal integration for easy reception; The processing module (103) comprises a filtering component (103a), an amplifying component (103b) and a directional collecting component (103c); the filtering component (103a) is connected to the enhancing module (102) and filters out clutter that is not enhanced by the enhancing module (102); the amplifying component (103b) is connected to the filtering component (103a) and amplifies the signal from the filtering component (103a); and the directional collecting component (103c) is connected to the amplifying component (103b) and mixes the signal of the amplifying component (103b) and outputs it to the positioning component (104); The filtering component (103a) is connected to the enhancement module (102) to reduce signal interference and filter out unnecessary clutter output from the enhancement module (102), wherein the unnecessary clutter is a signal other than the L1 / L2 / L5 frequency band. The amplification component further amplifies the signal of the specific frequency band filtered by the filtering component (103a), and then the directional collection component (103c) mixes the signals of the L1 / L2 / L5 frequency bands and outputs them to the positioning component (104).

2. The drone control system according to claim 1, characterized in that: It also includes a processing unit (200), and the positioning component (104) is connected to the processing unit (200) and sends a signal to the processing unit (200) for processing.

3. The drone control system according to claim 2, characterized in that: The filtering component (103a) comprises a first filter (103a-1) and a second filter (103a-2), wherein the first filter (103a-1) is connected to the first coupler (102a) and filters out unnecessary clutter, and the second filter (103a-2) is connected to the second coupler (102b) and filters out unnecessary clutter.

4. The drone control system according to claim 3, characterized in that: The amplifying component (103b) comprises a first amplifier (103b-1) and a second amplifier (103b-2), the first amplifier (103b-1) being connected to the first filter (103a-1) and amplifying signals in the frequency band of the first filter (103a-1), and the second amplifier (103b-2) being connected to the second filter (103a-2) and amplifying signals in the frequency band of the second filter (103a-2); The ground terminal of the first amplifier (103b-1) is connected to a first capacitor (105), and the ground terminal of the second amplifier (103b-2) is connected to a second capacitor (106).

5. The UAV control system according to claim 2 or 4, characterized in that: It also includes a communication navigation unit (300), including an interrupt module (301) and a communication module (302), wherein the interrupt module (301) receives instructions and transmits them to the communication module (302); the processing unit (200) processes the signal received by the radio frequency management unit (100) and sends it to the communication navigation unit (300).

6. The drone control system according to claim 5, characterized in that: The communication module (302) is connected to the interrupt module (301); the communication module (302) comprises a communication chip (302a) and a bus chip (302b); the communication chip (302a) converts data of the interrupt module (301) into data that can be received by the processing unit (200); a first resistor (304) is connected between the interrupt module (301) and the communication chip (302a); and the communication chip (302a) is connected to a third capacitor (305).

7. The drone control system according to claim 6, characterized in that: It also includes a power supply module (400), wherein the power supply module (400) provides power for the radio frequency management unit (100), the processing unit (200) and the communication navigation unit (300).

8. The drone control system according to claim 7, characterized in that: The power supply module (400) comprises a first power supply (401), a second power supply (402), and a control chip (403) connected in parallel, and the first power supply (401) and the second power supply (402) are respectively connected to the control chip (403).

9. The UAV control system according to any one of claims 2, 4, 6 or 8, characterized in that: It also includes a storage unit (500), which is connected to the processing unit (200) and stores the log generated by the processing unit (200).

Images