High-security drone delivery device and method with independent communication control link

Abstract

The present invention relates to a high-security unmanned aerial vehicle delivery device and method with an independent communication control link; the device comprises: a communication link module, a control link module and a projectile mounting delivery mechanism; the communication link module is used to provide an independent communication link for the communication between the delivery device and the ground station, and the control link module is used to receive a delivery command through the communication link to generate a control instruction and output it to the projectile mounting delivery mechanism; the projectile mounting delivery mechanism comprises a mounting clamping component and a delivery action component; the mounting clamping component is used to clamp the top of the safety grip of the projectile to mount the projectile under the unmanned aerial vehicle; the delivery action component is used to connect the safety pin of the projectile, pull out the safety pin under the control of the control instruction, and use the separation force between the safety grip and the projectile body to deliver the projectile body. The present invention realizes the universal deployment and safe delivery of the delivery device on the unmanned aerial vehicle.

Description

Technical Field

[0001] The present invention relates to the fields of unmanned aerial vehicle mounting and delivery technology, wireless communication technology and Internet of Things technology, and in particular to a high-security unmanned aerial vehicle delivery device and method with an independent communication control link. Background Art

[0002] At present, the control of the delivery mechanism based on small drones requires the use of the APP or remote control developed by the drone platform manufacturer and adapted to the specific drone model to issue control instructions. This brings technical difficulties to the deployment of delivery mechanisms on various, multi-type, and different manufacturers' unmanned platforms that are not equipped with delivery mechanisms in advance.

[0003] Furthermore, in the prior art, the devices for releasing the projectiles all first open the safety of the projectiles and then release the projectiles, requiring two steps to complete the projectile release operation. However, even if the two operations of opening and releasing the projectiles are consecutive, they still need to be performed one after the other, which will delay the release time. The most important thing is that once the safety of the projectiles has been opened, but the release mechanism of the projectiles fails, the projectiles will explode on the spot, causing immeasurable consequences. Summary of the invention

[0004] In view of the above analysis, the present invention aims to disclose a high-security drone delivery device and method with an independent communication control link, so as to solve the deployment problem of the delivery device on the drone and the delivery safety problem.

[0005] The present invention discloses a high-security UAV delivery device with an independent communication control link, comprising: a communication link module, a control link module and a missile body mounting delivery mechanism;

[0006] The communication link module is used to provide an independent communication link for the communication between the delivery device and the ground station.

[0007] The control link module is used to receive the delivery command through the communication link to generate a control instruction and output it to the missile body mounting delivery mechanism;

[0008] The projectile mounting and delivery mechanism comprises a mounting clamping assembly and a delivery action assembly; the mounting clamping assembly is used to clamp the top of the safety grip of the projectile and mount the projectile under the drone; the delivery action assembly is used to connect the safety pin of the projectile, and under the control of the control command, the safety pin is pulled out, and the projectile is delivered by using the separation force between the safety grip and the projectile body;

[0009] During the delivery process, the communication link module transmits the delivery command to the control link module one by one after multiple handshake confirmations; the control link module controls the delivery action component to gradually pull out the safety pin according to the successive delivery commands until it is separated from the projectile body.

[0010] Furthermore, the mounting clamping assembly includes a fixed clamping member, an adjustable clamping member and a guide rod; the fixed clamping member is fixedly connected to one end of the guide rod, and the adjustable clamping member is slidably disposed on the guide rod, so that the adjustable clamping member can be moved closer to or farther away from the fixed clamping member to clamp a projectile body with safety grips of different widths.

[0011] Furthermore, the fixed clamp and the adjustable clamp both include a horizontal portion, a vertical portion and a bent portion; the horizontal portion is vertically arranged at one end of the vertical portion, and the bent portion is arranged at the other end of the vertical portion;

[0012] The horizontal portion of the fixed clamp is parallel and overlapped below the horizontal portion of the adjustable clamp; the bent portions of the fixed clamp and the adjustable clamp are arranged facing each other, and the bent portions of the fixed clamp and the adjustable clamp are on the same horizontal plane.

[0013] Furthermore, the bending portion includes a hook section and a slope section, and the hook section is arranged above the slope section; wherein the hook section is used to clamp the lower surface of the top of the safety grip piece, so that the safety grip piece can be fixed between the hook section of the fixed clamp and the adjustable clamp; the inclination angle of the slope section is inclined outward from top to bottom, so that the distance between the slope section of the fixed clamp and the adjustable clamp gradually increases from top to bottom, forming a transition section when the safety grip piece is mounted on the clamping assembly.

[0014] Furthermore, the mounting clamping assembly further comprises a compression spring and a positioning spring; the compression spring is sheathed on the outer wall of the guide rod in a compressed state, and is used to provide elastic force for the adjustable clamping member to move toward the fixed clamping member;

[0015] The positioning spring is arranged in the horizontal part of the fixed clamping member, and provides a downward elastic force on the top of the safety gripping piece used for clamping.

[0016] Furthermore, the launching action assembly includes a driving servo, a winch and a pulling rope; the winch is arranged on the output shaft of the driving servo and rotates with the rotation of the output shaft; one end of the pulling rope is wound around the winch, and the other end is a free end connected to the pull ring of the safety pull pin;

[0017] During the release, the control link module outputs a control instruction to drive the servo to rotate the winch, and wind the pulling rope around the winch; the pulling rope then pulls the safety pin to slide out of the projectile until it is separated from the projectile.

[0018] Furthermore, the communication link module provides a 4G communication link based on NB-IOT.

[0019] Furthermore, in the process of establishing the 4G communication link, after multiple handshake status confirmations are successful, the delivery command is transmitted; the communication data content of each handshake status confirmation is different, and after the previous handshake status confirmation is successful, the next handshake status confirmation is entered. When any handshake status confirmation fails, it returns to the first handshake status and re-establishes the communication link.

[0020] Furthermore, the control link module sends control commands to the delivery action component multiple times, and each control command causes the delivery action component to pull out the safety pin a certain distance; a single pulling distance is no greater than the depth of the safety pin inserted into the projectile body; multiple accumulated pulling distances are greater than the depth of the safety pin inserted into the projectile body.

[0021] The present invention also discloses a method for delivering the above-mentioned high-security drone delivery device with an independent communication control link, comprising the following steps:

[0022] Step S1, fixing the drone delivery device holding the projectile to the bottom of the drone;

[0023] Step S2: After the drone arrives at the drop location, a three-way handshake is performed through the communication ring to establish a communication connection; if one of the three handshakes fails, the drone returns to the initial state and re-establishes the communication connection;

[0024] Step S3, after the communication connection is established, the three delivery commands sent in steps are controlled three times through the control ring to the delivery action component, and the delivery control is performed in steps;

[0025] Step S4, the release ring responds to the three-time control of the control ring and performs three releases, each release pulling out 1 / 3 of the full stroke of the safety pin; through the three releases, the safety pin is completely slid out and the projectile is released.

[0026] The present invention can achieve one of the following beneficial effects:

[0027] The high-security drone delivery device and method with an independent communication control link disclosed in the present invention provide their own communication link channel for receiving and outputting information instructions, are independent of the drone's communication link, have good versatility, and are convenient for integration into multiple types of drones from different manufacturers, thus reducing development costs and cycles.

[0028] The synchronization of opening the safety and releasing the projectile is achieved, simplifying the two steps of opening the safety and releasing the projectile into one step. The overall operation is efficient and convenient, and at the same time avoids the problem of failure in the intermediate steps resulting in subsequent failure to release or even explosion on the spot.

[0029] The width of the gripping piece adapted to different projectiles increases the applicable scope of the delivery device. At the same time, the projectile can be mounted in the clamping assembly in both forward and reverse directions, and the projectile can be efficiently clamped by the rebound force of the spring, thereby improving the clamping efficiency.

[0030] The safety grip is fixed in the horizontal direction on the horizontal plane, and the grip is fixed in the vertical direction by the positioning spring arranged on the inner wall of the horizontal part of the fixing clamp; the two kinds of fixation complement each other to achieve a better fixation effect on the grip, making the fixation of the elastic body more firm and reliable. At the same time, the grip is a free dimension in the vertical direction on the horizontal plane, which can ensure that when the safety pin is pulled out, the elastic body is unbalanced in the vertical direction of the horizontal plane, so that the elastic body of the elastic body is separated from the grip, and the release of the elastic body is realized. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] The drawings are only for the purpose of illustrating particular embodiments and are not to be considered limiting of the present invention. Like reference symbols denote like components throughout the drawings.

[0032] Figure 1 This is a structural block diagram of a high-security drone delivery device with an independent communication control link in Embodiment 1 of the present invention;

[0033] Figure 2 This is a flow chart of the delivery method of the drone delivery device in Embodiment 1 of the present invention;

[0034] Figure 3 It is a structural schematic diagram of the missile mounting and delivering mechanism in the second embodiment of the present invention;

[0035] Figure 4 It is a rear view of the missile mounting and releasing mechanism in the second embodiment of the present invention;

[0036] Figure 5 This is a schematic diagram of the structure of the clamping assembly of the missile mounting and delivery mechanism in the second embodiment of the present invention;

[0037] Figure 6 It is a top view of the missile mounting and delivering mechanism in the second embodiment of the present invention after the cover is opened;

[0038] Figure 7 It is another structural schematic diagram of the projectile mounting and delivering mechanism in the second embodiment of the present invention.

[0039] Figure 8 This is a circuit principle block diagram in Embodiment 3 of the present invention;

[0040] Fig. 9 This is a circuit connection schematic diagram of the EC-01F chip in Embodiment 3 of the present invention;

[0041] Fig.10This is a circuit connection schematic diagram of the MCU chip in the third embodiment of the present invention;

[0042] Fig.11 This is a circuit connection schematic diagram of the SIM card slot in Embodiment 3 of the present invention;

[0043] Fig.12 This is a schematic diagram of a linear power supply circuit in Embodiment 3 of the present invention;

[0044] Fig.13 This is a schematic diagram of a power sampling circuit in Embodiment 3 of the present invention.

[0045] Reference numerals:

[0046] 1-servo placement unit; 11-equipment cover; 12-battery cover; 13-switch; 14-battery pack; 15-sealing rubber ring;

[0047] 2-driving servo; 3-capstan; 4-pulling rope; 5-clamping assembly; 51-fixed clamping member; 52-adjustable clamping member; 53-guide rod; 54-positioning spring;

[0048] 7-bullet body; 71-bullet body; 72-grip plate; 73-safety pull ring; 8-mounting ear plate; 9-fixing strap. DETAILED DESCRIPTION

[0049] The preferred embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings, wherein the accompanying drawings constitute a part of this application and are used to illustrate the principles of the present invention together with the embodiments of the present invention.

[0050] Embodiment 1

[0051] The preferred embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings, wherein the accompanying drawings constitute a part of this application and are used together with the embodiments of the present invention to illustrate the principles of the present invention, but are not used to limit the scope of the invention.

[0052] The present invention is mainly aimed at the delivery of grenade-shaped bombs such as fire extinguishing bombs and firefighting bombs. Its specific structure is consistent with the grenade-shaped fire extinguishing bombs in the prior art, generally including a bomb body, a safety grip and a safety pin. The safety pin is plugged into the bomb body to fix the bomb body and the safety grip together. When the safety pin is pulled out and the safety grip is released, the safety of the bomb body is released.

[0053] One embodiment of the present invention discloses a high-security drone delivery device with an independent communication control link, such as Figure 1 As shown, it includes: a communication link module, a control link module and a missile body mounting and releasing mechanism;

[0054] The communication link module is used to provide an independent communication link for the communication between the delivery device and the ground station.

[0055] The control link module is used to receive the delivery command through the communication link to generate a control instruction and output it to the missile body mounting delivery mechanism;

[0056] The projectile mounting and delivery mechanism comprises a mounting clamping assembly and a delivery action assembly; the mounting clamping assembly is used to clamp the top of the safety grip of the projectile and mount the projectile under the drone; the delivery action assembly is used to connect the safety pin of the projectile, and under the control of the control command, the safety pin is pulled out, and the projectile is delivered by using the separation force between the safety grip and the projectile;

[0057] During the delivery process, the communication link module transmits the delivery command to the control link module one by one after multiple handshake confirmations; the control link module controls the delivery action component to gradually pull out the safety pin according to the successive delivery commands until it is separated from the projectile body.

[0058] Specifically, the mounting clamping assembly includes a fixed clamping member, an adjustable clamping member and a guide rod; the fixed clamping member is fixedly connected to one end of the guide rod, and the adjustable clamping member is slidably disposed on the guide rod, so that the adjustable clamping member can be moved closer to or farther away from the fixed clamping member to clamp a projectile body with a safety grip piece of different widths.

[0059] Furthermore, the fixed clamp and the adjustable clamp both include a horizontal portion, a vertical portion and a bent portion; the horizontal portion is vertically arranged at one end of the vertical portion, and the bent portion is arranged at the other end of the vertical portion;

[0060] The horizontal portion of the fixed clamp is parallel and overlapped below the horizontal portion of the adjustable clamp; the bent portions of the fixed clamp and the adjustable clamp are arranged facing each other, and the bent portions of the fixed clamp and the adjustable clamp are on the same horizontal plane.

[0061] Furthermore, the bending portion includes a hook section and a slope section, and the hook section is arranged above the slope section; wherein the hook section is used to clamp the lower surface of the top of the safety grip piece, so that the safety grip piece can be fixed between the hook sections of the fixed clamping piece and the adjustable clamping piece; the inclination angle of the slope section is inclined outward from top to bottom, so that the distance between the slope sections of the fixed clamping piece and the adjustable clamping piece gradually increases from top to bottom, forming a transition section when the safety grip piece is mounted on the clamping assembly.

[0062] Preferably, the mounting clamping assembly further comprises a compression spring and a positioning spring; the compression spring is sheathed on the outer wall of the guide rod in a compressed state, and is used to provide elastic force for the adjustable clamping member to move toward the fixed clamping member;

[0063] The positioning spring is arranged in the horizontal part of the fixed clamping member, and provides a downward elastic force on the top of the safety gripping piece used for clamping.

[0064] Specifically, the launching action assembly includes a driving steering gear, a winch and a pulling rope; the winch is arranged on the output shaft of the driving steering gear and rotates with the rotation of the output shaft; one end of the pulling rope is wound around the winch, and the other end is a free end connected to the pull ring of the safety pull pin;

[0065] During the release, the control link module outputs a control instruction to drive the servo to rotate the winch, and wind the pulling rope around the winch; the pulling rope then pulls the safety pin to slide out of the projectile until it is separated from the projectile.

[0066] Specifically, the communication link module provides a 4G communication link based on NB-IOT.

[0067] Among them, in the process of establishing the 4G communication link, after multiple handshake status confirmations are successful, the delivery command is transmitted; the communication data content of each handshake status confirmation is different, and after the previous handshake status confirmation is successful, the next handshake status confirmation is entered. When any handshake status confirmation fails, it returns to the first handshake status and re-establishes the communication link.

[0068] Each handshake communication includes six parts: frame header, frame header check, data, data check, frame tail, and frame tail check. At the same time, the data content of each handshake communication is different to improve the reliability of establishing the communication connection.

[0069] Specifically, the control link module sends control commands to the delivery action component multiple times, and each control command causes the delivery action component to pull out the safety pin a certain distance; the single pulling distance is not greater than the depth of the safety pin inserted into the projectile; the multiple accumulated pulling distances are greater than the depth of the safety pin inserted into the projectile. When the accumulated pulling distance of the control command is less than the depth of the safety pin inserted into the projectile, the projectile cannot be delivered.

[0070] A specific solution in an embodiment of the present invention further discloses a method for delivering the above-mentioned high-security drone delivery device with an independent communication control link, comprising the following steps:

[0071] Step S1, fixing the drone delivery device holding the projectile to the bottom of the drone;

[0072] Step S2: After the drone arrives at the drop location, a three-way handshake is performed through the communication ring to establish a communication connection; if one of the three handshakes fails, the drone returns to the initial state and re-establishes the communication connection;

[0073] Step S3, after the communication connection is established, the three delivery commands sent in steps are controlled three times through the control ring to the delivery action component, and the delivery control is performed in steps;

[0074] Step S4, the release ring responds to the control ring's three-time control and performs three releases, each release pulling out 1 / 3 of the entire travel of the safety pin; the safety pin is completely slid out through three releases, and the projectile is released. If one of the three releases fails, the projectile cannot be released.

[0075] In summary, the high-security drone delivery device and method with an independent communication control link disclosed in the embodiments of the present invention provide their own communication link channel for receiving and outputting information instructions, are independent of the drone's communication link, have good versatility, and are convenient for integration into multiple types of drones from different manufacturers, thereby reducing development costs and cycles.

[0076] The synchronization of opening the safety and releasing the projectile is achieved, simplifying the two steps of opening the safety and releasing the projectile into one step. The overall operation is efficient and convenient, and at the same time avoids the problem of failure in the intermediate steps resulting in subsequent failure to release or even explosion on the spot.

[0077] The width of the gripping piece adapted to different projectiles increases the applicable scope of the delivery device. At the same time, the projectile can be mounted in the clamping assembly in both forward and reverse directions, and the projectile can be efficiently clamped by the rebound force of the spring, thereby improving the clamping efficiency.

[0078] The safety grip is fixed in the horizontal direction on the horizontal plane, and the grip is fixed in the vertical direction by the positioning spring arranged on the inner wall of the horizontal part of the fixing clamp; the two kinds of fixation complement each other to achieve a better fixation effect on the grip, making the fixation of the elastic body more firm and reliable. At the same time, the grip is a free dimension in the vertical direction on the horizontal plane, which can ensure that when the safety pin is pulled out, the elastic body is unbalanced in the vertical direction of the horizontal plane, so that the elastic body of the elastic body is separated from the grip, and the release of the elastic body is realized.

[0079] Embodiment 2

[0080] In this embodiment, a more specific missile mounting and delivery mechanism applicable to the previous embodiment is disclosed, such as Figure 3 As shown,

[0081] It includes a servo placement unit 1, a driving servo 2, a winch 3, a pulling rope 4 and a mounting clamping assembly 5; the servo placement unit 1 is used to place the driving servo 2, the winch 3 is arranged on the output shaft of the driving servo 2, one end of the pulling rope 4 is wound around the winch 3, and the other end is a free end for fixing the safety pin 73 of the projectile 7; the driving servo 2, the winch 3 and the pulling rope 4 constitute a launching action assembly.

[0082] The mounting clamping assembly 5 is used to clamp the top of the safety gripping piece 72 of the elastic body 7, so that the elastic body 71 of the elastic body 7 is in an externally suspended state.

[0083] During implementation, the safety grip piece 72 of the projectile 7 is fixed with the mounting clamping assembly 5, and the safety pin 73 of the projectile 7 is fixed to the free end of the pulling rope 4. When the servo 2 is driven to rotate, the winch 3 is driven to rotate, so that the pulling rope 4 is wound around the winch 3, and the free end is retracted to pull out the safety pin 73 until it is separated from the projectile; after the safety pin 73 is pulled out, the elastic member between the safety grip piece 72 and the projectile body 71 will provide a driving force to separate the safety grip piece 72 from the projectile body 71. Since the top of the safety grip piece 72 is clamped by the mounting clamping assembly 5, the separation force causes the projectile body 71 to move in the direction away from the projectile body mounting and releasing mechanism. In the mounting state, it moves downward, and the projectile body 71 is subjected to an unbalanced force in the vertical direction, thereby realizing the release of the projectile body 71.

[0084] This design completes the release of the projectile body 71 while opening the safety pin 73, thereby achieving synchronization between opening the safety and releasing the projectile body, and simplifies the two steps of opening the safety and releasing the projectile body in the prior art into one step. The overall operation is efficient and convenient, and at the same time avoids the problem of failure in the intermediate steps resulting in subsequent failure to release or even explosion on the spot.

[0085] In addition, the mounting clamping assembly 5 is only used to clamp the top of the safety grip 72 of the projectile 7, so that the projectile body 71 of the projectile 7 is in an external suspended state, which can greatly save the device space and facilitate real-time observation and operation of the state of the projectile 7 from the outside.

[0086] like Figure 4 As shown, the mounting clamping assembly 5 includes a fixed clamping member 51, an adjustable clamping member 52, a guide rod 53 and a compression spring. The guide rod 53 is arranged parallel to the bottom of the steering gear placement unit 1, one end of which is vertically fixed to the external side plate below the second end of the steering gear placement unit 1, and the other end is fixedly provided with the fixed clamping member 51; the adjustable clamping member 52 is slidably arranged on the guide rod 53, and the compression spring is sheathed on the outer wall of the guide rod 53 in a compressed state, and one end of the compression spring abuts against the inner wall of the side plate at the second end of the steering gear placement unit 1, and the other end abuts against the outer wall of the adjustable clamping member 52, so that the adjustable clamping member 52 can realize the movement away from or towards the fixed clamping member 51 under the guiding action of the guide rod 53.

[0087] The number of the guide rods may be greater than one, for example, two guide rods arranged in parallel, so as to prevent the adjustable clamp from shaking when sliding.

[0088] The horizontal guiding action of the guide rod 53 guides the movement trajectory of the adjustable clamp 52, thereby maintaining the horizontality of the safety grip 72, thereby ensuring the horizontality of the projectile body 7 relative to the servo placement unit 1 and ensuring the accuracy of the bombing angle.

[0089] In addition, the fixed clamping member 51 and the adjustable clamping member 52 are moved apart by human power, and relative movement is achieved by the resilience of the compression spring itself, thereby adapting to the width of the safety grip 72 of different projectiles, increasing the application range of the delivery device, and at the same time, the projectile 7 can be mounted in the mounting clamping assembly 5 in both the forward and reverse directions, and the projectile 7 can be efficiently clamped by the resilience of the spring, thereby improving the clamping efficiency.

[0090] For example, the initial distance between the fixed clamp 51 and the adjustable clamp 52 is 17 mm, and the compression change size of the compression spring is between 0-18 mm. Therefore, the maximum initial opening between the fixed clamp 51 and the adjustable clamp 52 is 35 mm, which is suitable for the elastic body 7 with a lateral width of the safety grip 72 between 18-35 mm.

[0091] Specifically, the fixed clamp 51 and the adjustable clamp 52 each include a horizontal portion, a vertical portion, and a bent portion, the horizontal portion being vertically disposed at one end of the vertical portion, and the bent portion being disposed at the other end of the vertical portion. The horizontal portion of the fixed clamp 51 is disposed parallel and overlapped below the horizontal portion of the adjustable clamp 52, and the bent portions of the fixed clamp 51 and the adjustable clamp 52 are disposed facing each other and on the same horizontal plane, so that the two bent portions can play a role in clamping and fixing the safety grip 72 in the horizontal direction after relative movement.

[0092] Furthermore, the bending portion includes a hook section and an inclined section, and the hook section is arranged above the inclined section. The hook section is used to clamp the lower surface of the top of the fixed safety grip 72, so that the fixed safety grip 72 can be fixed between the hook section of the fixed clamp 51 and the adjustable clamp 52. The inclination angle of the inclined section is inclined outward from top to bottom, so that the distance between the inclined section of the fixed clamp 51 and the adjustable clamp 52 gradually increases from top to bottom, forming a transition section when the fixed safety grip 72 is mounted on the mounting clamp assembly 5, which is convenient for mounting the projectile 7.

[0093] like Figure 5 As shown, the mounting clamping assembly 5 also includes a positioning spring 54, of which a plurality of positioning springs 54 are fixedly arranged on the inner wall of the horizontal portion of the fixed clamping member 51, and play the role of resisting the safety grip piece 72 of the elastic body 7, so that it can achieve the effect of fixing the safety grip piece 72 in the vertical direction, and at the same time, the two sides of the lower surface of the safety grip piece 72 can be stuck between the bent portions of the fixed clamping member 51 and the adjustable clamping member 52.

[0094] The embodiment of the present invention ensures the fixation of the safety grip 72 in the horizontal direction through the bent parts of the fixed clamp 51 and the adjustable clamp 52, and fixes the safety grip 72 in the vertical direction through the positioning spring 54 provided on the inner wall of the horizontal part of the fixed clamp 51; the two fixations complement each other to achieve a better fixation effect on the safety grip 72, making the fixation of the projectile body 7 more firm and reliable. At the same time, the safety grip 72 is a free dimension in the horizontal direction on the horizontal plane, which can ensure that when the safety pull pin 73 is pulled out, the projectile body 71 and the safety grip 72 are unbalanced in the separation direction, so as to achieve the release of the projectile body 71.

[0095] Further, such as Figure 3 and Figure 6 As shown, the steering gear placement unit 1 includes a first cavity and a second cavity, and the two cavities are arranged side by side and are both hollow boxes.

[0096] Furthermore, it also includes a device cover 11 and a switch 13. The device cover 11 is used to cover the first cavity. The switch 13 is arranged on the inner wall of the first cavity and is used to control the opening and closing of the driving steering engine 2.

[0097] Specifically, the switch 13 is a waterproof sealed switch, and the waterproof sealed switch has IP65 grade waterproof.

[0098] Furthermore, it also includes a battery cover 12 and a battery pack 14 . The battery cover 12 is used to cover the second cavity. The battery pack 14 is arranged in the second cavity to supply power to the driving servo 2 .

[0099] In addition, a sealing rubber ring 15 is provided at the opening of the first cavity and the second cavity, so that the box body is sealed when the device cover 11 and the battery cover 12 are closed with the cavity to prevent water mist, sand and dust from entering.

[0100] The missile mounting and delivering mechanism disclosed in this embodiment is as follows: Figure 7 As shown, it also includes a mounting ear piece 8 and / or a fixing strap 9, which are used to connect the missile body mounting and delivery mechanism to the UAV.

[0101] Among them, the mounting ear piece 8 is arranged on the outside of the box body of the servo placement unit 1. There are multiple mounting ear pieces 8, which are symmetrically arranged on the upper outer walls of the first box body and the second box body respectively. A through hole is provided on each mounting ear piece 8, so that the delivery equipment can be fixedly connected to the drone by screws of suitable sizes. The through hole can also be used as an emergency connection point, and can be fixed to the drone by rope-like items at the use site.

[0102] In addition, the fixing strap 9 can be a common strap or a Velcro strap, which can be detachably arranged around the outer wall of the servo placement unit 1, and can bind and fix the delivery device to the drone.

[0103] Embodiment 3

[0104] This embodiment discloses a circuit that can be applied to the first embodiment, in which the functions of the communication link module and the control link module are implemented to establish a communication link and a control link.

[0105] like Figure 8 As shown, the circuit includes an antenna, an NB-IOT chip, a SIM card slot, an MCU chip, a terminal output port, and a linear power supply circuit;

[0106] The voltage input end of the linear power supply circuit is connected to an external power supply, and the voltage output end of the linear power supply circuit is connected to the power supply pins of the NB-IOT chip and the MCU chip to supply power to the NB-IOT chip and the MCU chip;

[0107] The NB-IOT chip is an EC-01F chip; the RF signal input end of the NB-IOT chip is connected to the antenna, and the SIM signal port of the NB-IOT chip is connected to the SIM card slot; the NB-IOT chip and the MCU chip are communicated and connected via a serial port data line; the MCU chip is connected to the terminal output port; the terminal output port outputs the control signal output by the MCU chip to the driving servo.

[0108] like Fig. 9 As shown, pins 1, 10, 27, 34, 36, 37, 40 and 41 of the EC-01F chip are connected to GND; pins 42 and 43 are connected to the output port of the linear power supply circuit as power supply pins; filter capacitors C7 and C8 are connected between the power supply pins and GND, wherein capacitor C7 is a chip capacitor with a capacitance value of 0.1uF; capacitor C8 is a chip capacitor with a capacitance value of 10uF; pins 11-14 are connected to the SIM card slot as SIM signal ports, wherein pin 11 is SIM0_DATA, pin 12 is SIM0_RST, pin 13 is SIM0_CLK, and pin 14 is SIM0_3.3V; pins 17 and 18 are connected to the serial port data end of the MCU chip as serial port data ends, wherein pin 17 is USART1_RX and pin 18 is USART1_TX; pin 35 is NB_RF, which is connected to the antenna as an RF signal input end.

[0109] Specifically, the MCU chip is STM321011d4p6.

[0110] like Fig.10As shown, the power supply pin 10 of the MCU chip is connected to the output port of the linear power supply circuit; pin 11 is connected to GND; filter capacitors C5 and C6 are connected between the power supply pin and GND, wherein capacitor C5 is a chip capacitor with a capacitance value of 0.1uF; capacitor C6 is a chip capacitor with a capacitance value of 10uF; pin 4 is connected to the output port of the linear power supply circuit through resistor R14, and pin 4 is connected to GND through capacitor C14. Resistor R14 and capacitor C14 form a power-on reset circuit for powering on the MCU chip; pins 11 and 12 of the MCU chip are respectively connected to pins 11 and 12 of the NB-IOT chip as the serial port data end as the serial port data end; pin 7 of the MCU chip is connected to the terminal circuit output port as the control signal output port of the MCU chip; pin 7 of the MCU chip is used to access the power supply sampling signal and perform analog-to-digital conversion in the ADC module integrated inside the MCU chip.

[0111] Specifically, the SIM card slot may be a SIM_NANO flip-cover type card holder with a built-in SIM_NANO card.

[0112] like Fig.11 As shown, pin 1 of the SIM card slot is SIM_VCC connected to pin 14SIM_3.3V of the NB-IOT chip through a resistor R3; pin 2 of the SIM card slot is SIM_RST connected to pin 12SIM0_RST of the NB-IOT chip through a resistor R4; pin 3 of the SIM card slot is SIM_CLK connected to pin 13SIM0_CLK of the NB-IOT chip through a resistor R6; pin 7 of the SIM card slot is SIM_DATA connected to pin 11SIM0_DATA of the NB-IOT chip through a resistor R8; resistor R1 is connected between the connection end of resistor R3 and pin 1 of the SIM card slot and GND; resistor R5 is connected between pin 1 of the SIM card slot and pin 12 of the NB-IOT chip; resistor R7 is connected between pin 1 of the SIM card slot and pin 11 of the NB-IOT chip.

[0113] Preferably, resistor R1 is a chip resistor with a resistance of 20KΩ, resistor R3 is a chip resistor with a resistance of 0Ω, resistor R4 is a chip resistor with a resistance of 22Ω, resistor R5 is a chip resistor with a resistance of 22KΩ, resistor R6 is a chip resistor with a resistance of 22Ω, resistor R7 is a chip resistor with a resistance of 20KΩ, and resistor R8 is a chip resistor with a resistance of 22Ω.

[0114] Specifically, the linear power supply circuit converts an external 12V DC power supply into a 3.3V DC voltage for the NB-IOT chip and the MCU chip.

[0115] like Fig.12As shown, the linear power supply circuit includes a power chip AMS117-3.3, capacitors C1-C4 and a switch SW1;

[0116] Pin 1 of switch SW1 is connected to the input terminal 12V_IN of the external power supply 12V, and pin 2 of switch SW1 is connected to pin 3 of power chip AMS117 as 12V_OUT; pin 1 of power chip AMS117 is connected to GND, pins 2 and 4 are connected, filter capacitors C1 and C2 are connected between pin 4 and GND, and filter capacitors C3 and C4 are connected between pin 3 and GND;

[0117] Among them, capacitors C2 and C4 are chip capacitors with a capacitance value of 0.1uF; capacitors C1 and C3 are chip capacitors with a capacitance value of 10uF.

[0118] Furthermore, it also includes a power sampling circuit; such as Fig.13 As shown, the power sampling circuit includes resistors R2, R13 and capacitor C13; pin 3 of the power chip AMS117 is connected to GND through resistors R2 and R13 connected in series, and the connecting end of resistors R2 and R13 is connected to pin 6 of the MCU chip; the connecting end of resistors R2 and R13 is also connected to GND through capacitor C13.

[0119] Preferably, the resistor R2 is a chip resistor with a resistance value of 30 kΩ, and the resistor R13 is a chip resistor with a resistance value of 10 kΩ; the capacitor C13 is a chip capacitor with a capacitance value of 10 uF.

[0120] Specifically, pin 1 of the terminal output port is connected to pin 3 of the power chip AMS117; pin 2 of the terminal circuit output interface is connected to GND, and pin 3 of the terminal circuit output interface is connected to pin 7 of the MCU chip. The terminal output port outputs the external power supply on the one hand, and outputs the control signal output by the MCU chip on the other hand, which is more convenient for the work of the driving servo connected thereto.

[0121] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any changes or substitutions that can be easily conceived by any technician familiar with the technical field within the technical scope disclosed by the present invention should be covered within the protection scope of the present invention.

Claims

1. A high-security drone delivery device with an independent communication control link, characterized in that: include: Communication link module, control link module and missile body mounting and delivery mechanism; The communication link module is used to provide an independent communication link for the communication between the delivery device and the ground station. The control link module is used to receive the delivery command through the communication link to generate a control instruction and output it to the missile body mounting delivery mechanism; The projectile mounting and delivery mechanism comprises a mounting clamping assembly and a delivery action assembly; the mounting clamping assembly is used to clamp the top of the safety grip of the projectile and mount the projectile under the drone; the delivery action assembly is used to connect the safety pin of the projectile, and under the control of the control command, the safety pin is pulled out, and the projectile is delivered by using the separation force between the safety grip and the projectile body; During the delivery process, the communication link module transmits the delivery command to the control link module one by one after multiple handshake confirmations; the control link module controls the delivery action component to gradually pull out the safety pin according to the delivery commands one by one until it is separated from the projectile body; The mounting clamping assembly comprises a fixed clamping member, an adjustable clamping member and a guide rod; the fixed clamping member is fixedly connected to one end of the guide rod, and the adjustable clamping member is slidably arranged on the guide rod, so that the adjustable clamping member can be moved closer to or farther from the fixed clamping member to clamp the elastic body with the safety gripping pieces of different widths; The bending portion includes a hook section and a slope section, wherein the hook section is arranged above the slope section; wherein the hook section is used to clamp the lower surface of the top of the safety grip piece, so that the safety grip piece can be fixed between the hook sections of the fixed clamping piece and the adjustable clamping piece; the inclination angle of the slope section is inclined outward from top to bottom, so that the distance between the slope sections of the fixed clamping piece and the adjustable clamping piece gradually increases from top to bottom, forming a transition section when the safety grip piece is mounted on the clamping assembly.

2. The high-security drone delivery device according to claim 1, characterized in that: The fixed clamp and the adjustable clamp both include a horizontal portion, a vertical portion and a bent portion; the horizontal portion is vertically arranged at one end of the vertical portion, and the bent portion is arranged at the other end of the vertical portion; The horizontal portion of the fixed clamp is parallel and overlapped below the horizontal portion of the adjustable clamp; the bent portions of the fixed clamp and the adjustable clamp are arranged facing each other, and the bent portions of the fixed clamp and the adjustable clamp are on the same horizontal plane.

3. The high-security drone delivery device according to claim 2, characterized in that: The mounting clamping assembly further includes a compression spring and a positioning spring; the compression spring is sheathed on the outer wall of the guide rod in a compressed state, and is used to provide elastic force for the adjustable clamping member to move toward the fixed clamping member; The positioning spring is arranged in the horizontal part of the fixed clamping member, and provides a downward elastic force on the top of the safety gripping piece used for clamping.

4. The high-security drone delivery device according to claim 1, characterized in that: The launching action assembly includes a driving steering gear, a winch and a pulling rope; the winch is arranged on the output shaft of the driving steering gear and rotates with the rotation of the output shaft; one end of the pulling rope is wound around the winch, and the other end is a free end connected to the pull ring of the safety pull pin; During the release, the control link module outputs a control instruction to drive the servo to rotate the winch, and wind the pulling rope around the winch; the pulling rope then pulls the safety pin to slide out of the projectile until it is separated from the projectile.

5. The high-security drone delivery device according to any one of claims 1 to 4, characterized in that: The communication link module provides a 4G communication link based on NB-IOT.

6. The high-security drone delivery device according to claim 5, characterized in that: In the process of establishing the 4G communication link, after multiple handshake status confirmations are successful, the delivery command is transmitted; the communication data content of each handshake status confirmation is different, and after the previous handshake status confirmation is successful, the next handshake status confirmation is entered. When any handshake status confirmation fails, it returns to the first handshake status and re-establishes the communication link.

7. The high-security drone delivery device according to claim 6, characterized in that: The control link module sends control commands to the delivery action component multiple times, and each control command causes the delivery action component to pull out the safety pin a certain distance; the single pulling distance is no greater than the depth of the safety pin inserted into the projectile body; the multiple accumulated pulling distances are greater than the depth of the safety pin inserted into the projectile body.

8. A method for delivering a high-security drone delivery device with an independent communication control link according to any one of claims 1 to 7, characterized in that: The following steps are involved: Step S1, fixing the drone delivery device holding the projectile to the bottom of the drone; Step S2: After the drone arrives at the drop location, a three-way handshake is performed through the communication ring to establish a communication connection; if one of the three handshakes fails, the drone returns to the initial state and re-establishes the communication connection; Step S3, after the communication connection is established, the three delivery commands sent in steps are controlled three times through the control ring to the delivery action component, and the delivery control is performed in steps; Step S4, the release ring responds to the three-time control of the control ring and performs three releases, each release pulling out 1 / 3 of the full stroke of the safety pin; through the three releases, the safety pin is completely slid out and the projectile is released.

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