Onboard SBUS signal processing system and signal processing module structure thereof
By designing an on-board SBUS signal processing system and ambient temperature adaptation mechanism, the incompatibility and temperature impact of SBUS protocol in the UAV system is solved, and higher flexibility and stability are achieved.
Patent Information
- Application Number
- CN202411946400.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-27
- Publication Date
- 2025-02-28
AI Technical Summary
When receiving remote control terminal signals, existing drone systems rely on the SBUS protocol, which leads to incompatibility with system instructions controlled by other protocols, poor flexibility, and external temperature changes affect the operation of the signal processing module.
An on-board SBUS signal processing system is designed to receive SBUS control signals through circuit modules and convert them into RS232 protocol messages, and transmit them to controllers in the aircraft, improving the flexibility of the UAV control system. In addition, an ambient temperature adaptation mechanism is provided outside the housing of the signal processing module, including wind heat dissipation equipment and heating plates. The temperature is adjusted through the temperature sensor and position adjustment mechanism to ensure that the module operates normally under different temperature environments.
The UAV controlled by other protocols is realized through SBUS control signal control, which improves the flexibility of the UAV control system, and prevents the signal processing module from being affected by external temperature through the temperature adaptation mechanism.
Smart Images
Figure CN119544761A_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the technical field of signal processing, and in particular to an airborne SBUS signal processing system and a signal processing module structure thereof. Background Art
[0002] SBUS signal is a serial communication protocol widely used in model aircraft remote controllers (receivers), and its full name is Serial Bus. With the development of UAV technology, UAVs have been widely used in reconnaissance, mapping, search and rescue, forest fire prevention and other fields. Ground stations play a vital role in ensuring the normal flight of UAVs and completing tasks. The UAV can be monitored and controlled in flight through the control terminal. The signal processing system and its signal processing module installed inside the UAV that can receive SBUS signals and control the UAV according to its signal instructions can be called an airborne SBUS signal processing system and its signal processing module structure.
[0003] However, when the existing UAV system receives the remote control terminal signal, most receivers and remote control terminals rely on the SBUS protocol for communication, which is incompatible with the system instructions controlled by other protocols in the aircraft. It has poor flexibility and most of the existing aircraft are used in the outside world. The outside temperature will affect the operation of the signal processing module located inside it. If the outside temperature is too high, it may cause the signal processing module to overheat. If the outside temperature is too low, it may reduce the saturation current of the transistor in the signal processing module, thereby reducing the maximum value of the output voltage, thereby affecting the output power of the signal processing module. Therefore, it does not meet the existing needs. We propose an airborne SBUS signal processing system and its signal processing module structure. Summary of the invention
[0004] The object of the present invention is to provide an airborne SBUS signal processing system and a signal processing module structure thereof, so as to solve the problem that when the existing unmanned aerial vehicle system receives the remote control terminal signal proposed in the above background technology, most receivers and the remote control terminal rely on the SBUS protocol for communication, which is incompatible with the system instructions controlled by other protocols in the aircraft, and has poor flexibility. In addition, most of the existing aircraft are used in the outside world, and the outside temperature will affect the operation of the signal processing module located inside. If the outside temperature is too high, it may cause the signal processing module to overheat, and if the outside temperature is too low, it may reduce the saturation current of the transistor in the signal processing module, thereby reducing the maximum value of the output voltage, thereby affecting the output power of the signal processing module, and the like.
[0005] To achieve the above object, the present invention provides the following technical solution: an airborne SBUS signal processing system, comprising: Circuit module: used to receive the SBUS control signal message sent by the remote control device, and convert the SBUS control signal message sent by the remote control device into an RS protocol message, including a DB interface, a power supply and voltage stabilization module, an SBUS receiving module, and an SBUS to RS module; Shell module: used to seal the circuit module and fix the circuit module to the body of the aircraft, including an upper cover, upper cover fixing bolt holes, a shell, plug mounting holes, antenna holes and shell fixing bolt holes.
[0006] Preferably, the DB interface can be connected to the aircraft via a cable, so as to realize power supply of the circuit module and communication between the circuit module and the aircraft.
[0007] Preferably, the SBUSSBUS receiving module is used to receive the SBUS control signal message sent by the remote control device, and send the SBUS control signal message to the SBUS to RS232 module.
[0008] Preferably, the SBUS to RS232 module converts the received SBUS control signal message into an RS232 protocol message, and transmits the converted RS232 protocol message to the controller in the aircraft through the DB9 interface.
[0009] A signal processing module structure for an airborne SBUS signal processing system, comprising a signal processing module housing, an ambient temperature adaptation mechanism being arranged on the outer side of the signal processing module housing, the ambient temperature adaptation mechanism comprising a mounting plate, a wind heat dissipation device, a heating plate, a temperature lock cotton and a position adjustment mechanism, the wind heat dissipation device being fixed to a position of an upper end surface of the mounting plate close to a front end surface thereof, and the wind heat dissipation device being located above the signal processing module housing; The heating plate is fixed to the upper end surface of the mounting plate near the rear end surface of the mounting plate, and the temperature locking cotton is fixed to the lower end surface of the heating plate. The position adjustment mechanism can push the mounting plate parallel to the upper side of the signal processing module housing.
[0010] Preferably, a temperature sensor is fixedly mounted on one side of the upper end surface of the signal processing module housing, and the temperature sensor is electrically connected to the position adjustment mechanism; The position adjustment mechanism comprises a moving motor, the output shaft of the moving motor is connected to a moving threaded rod through a coupling, both sides of the outer surface of the moving threaded rod are sleeved with an internal threaded sleeve connected to the moving threaded rod through a threaded structure, and the lower end surfaces of the two internal threaded sleeves are fixed to the mounting plate; A guide rod which is laterally movable and penetrates the mounting plate is arranged on both sides below the movable threaded rod, and both ends of the guide rod are fixed to the inner wall of the concave platform.
[0011] Preferably, a fixed motor fixedly mounted inside the mounting plate housing is provided below the movable threaded rod, the output shaft of the fixed motor is connected to a square rotating shaft via a coupling, a fixed threaded rod connected to the mounting plate via a threaded structure is provided on the outer side of the square rotating shaft, a square slot is provided in the middle position of the upper end surface of the fixed threaded rod, and the square rotating shaft is inserted into the inside of the square slot.
[0012] Preferably, the inner wall cross-section of the square slot is a square, the outer surface of the square shaft fits the inner wall of the square slot, and the square shaft is slidably connected to the square slot.
[0013] Preferably, a pushing head is fixedly provided on the lower end surface of the fixed threaded rod, and a rectangular pushing block is provided on both sides below the pushing head. The surface of the rectangular pushing block facing the pushing head is an inclined surface, and a spring is connected to one side of the outer surface of the rectangular pushing block.
[0014] Preferably, a connecting rod fixed to the outer surface of the rectangular pushing block is provided below the spring, one end of the connecting rod is fixedly connected to a fixed tooth row, a tooth row is provided on one side of the fixed tooth row, the top ends of the tooth heads located on the fixed tooth row and the outer surface of the tooth row are both arc-shaped, and the two tooth rows are respectively fixed between the two guide rods.
[0015] Compared with the prior art, the present invention has the following beneficial effects: 1. The present invention can receive the SBUS control signal message sent by the remote control device through the circuit module, and convert the signal into an RS232 protocol message and transmit it to the controller in the aircraft, so as to control the drone controlled by other protocols through the SBUS control signal message. The above technical solution improves the flexibility of the drone control system; 2. The present invention uses an environmental temperature adaptation mechanism to cool down the housing of the signal processing module when the temperature is too high, and to heat it when the temperature is too low, thereby ensuring that the housing of the signal processing module has a suitable operating environment temperature regardless of the weather in which it works. The above technical solution can prevent the housing of the signal processing module located inside the device from being affected by external high or low temperatures. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 A circuit diagram of an embodiment of the present invention as a whole; Figure 2 It is a working flow chart of the circuit part of the present invention; Figure 3 This is a working schematic diagram of the power supply and voltage stabilization module of the present invention; Figure 4 It is a schematic structural diagram of the outer shell part of the present invention; Figure 5 This is a schematic diagram of the overall structure of the signal processing module housing inside the housing of the present invention; Figure 6 A side view of the bottom structure of the signal processing module housing of the present invention; Figure 7 A side view of the internal structure of the mounting plate of the present invention; Figure 8 For the present invention Figure 7 A magnified view of the structure at center.
[0017] In the figure: 1. upper cover; 2. shell; 3. bolt hole for fixing the upper cover; 4. plug installation hole; 5. antenna hole; 6. bolt hole for fixing the shell; 7. shell of signal processing module; 8. concave table; 9. moving motor; 10. moving threaded rod; 11. internal threaded sleeve; 12. mounting plate; 13. wind cooling device; 14. heating plate; 15. temperature locking cotton; 16. guide rod; 17. tooth row; 18. fixed motor; 19. square shaft; 20. fixed threaded rod; 21. push head; 22. rectangular push block; 23. inclined surface; 24. spring; 25. connecting rod; 26. fixed tooth row; 27. temperature sensor; 28. square slot. DETAILED DESCRIPTION
[0018] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.
[0019] See also Figures 1 to 8 , an embodiment of the present invention provides: an airborne SBUS signal processing system, comprising: Circuit module: used to receive the SBUS control signal message sent by the remote control device, and convert the SBUS control signal message sent by the remote control device into an RS232 protocol message, including a DB9 interface, a power supply and voltage stabilization module, an SBUS receiving module, and an SBUS to RS232 module; Shell module: used to seal the circuit module and fix the circuit module to the body of the aircraft, including an upper cover 1, upper cover fixing bolt holes 3, a shell 2, a plug installation hole 4, an antenna hole 5 and a shell fixing bolt hole 6.
[0020] Before using the device, first install the power supply and voltage stabilizing module, SBUS receiving module and SBUS to RS232 module inside the housing 2, and extend the antenna on the SBUS receiving module from the antenna hole 5 to the outside of the housing, so as to increase the communication distance with the remote control terminal. After the power supply and voltage stabilizing module, SBUS receiving module and SBUS to RS232 module are fixed, fix the DB9 interface through the plug installation hole 4, cover the housing 2 with the upper cover 1, and screw the bolts into the upper cover fixing bolt holes 3 located on the upper cover 1 to fix the upper cover 1 and the housing 2, so as to achieve the effect of sealing and protecting the circuit module; After the upper cover 1 and the shell 2 are fixed, the entire device is fixed to the aircraft body through the shell fixing bolt holes 6 .
[0021] The DB9 interface can be connected to the aircraft through a cable to realize the power supply of the circuit module and the communication between the circuit module and the aircraft; the power supply and voltage stabilization module includes a filter module and a step-down module. When the aircraft is started, the power is transmitted to the circuit module through the cable. The filter module will eliminate the spikes and the step-down module will reduce the voltage to the value required by the equipment to ensure the overall power supply of the circuit module.
[0022] When the aircraft is flying in the sky, after receiving the SBUS control signal message sent by the remote control device through the SBUS receiving module, the SBUS control signal message will be sent to the SBUS to RS232 module. The SBUS to RS232 module will convert the received SBUS control signal message into an RS232 protocol message, and transmit the converted RS232 protocol message to the controller in the aircraft through the DB9 interface, so as to control the drone controlled by other protocols through the SBUS control signal message. The above technical solution can improve the flexibility of the drone control system.
[0023] Based on the above system, we also propose a signal processing module structure for an airborne SBUS signal processing system, including a signal processing module housing 7, an ambient temperature adaptation mechanism is provided on the outer side of the signal processing module housing 7, the ambient temperature adaptation mechanism includes a mounting plate 12, a wind heat dissipation device 13, a heating plate 14, a temperature lock cotton 15 and a position adjustment mechanism, the wind heat dissipation device 13 is fixed to the upper end surface of the mounting plate 12 near its front end surface, and the wind heat dissipation device 13 is located above the signal processing module housing 7; The heating plate 14 is fixed to the upper end surface of the mounting plate 12 near the rear end surface of the mounting plate 12 , and the temperature locking cotton 15 is fixed to the lower end surface of the heating plate 14 . The position adjustment mechanism can push the mounting plate 12 parallel to the top of the signal processing module housing 7 .
[0024] A temperature sensor 27 is fixedly mounted on one side of the upper end surface of the signal processing module housing 7, and the temperature sensor 27 is electrically connected to the position adjustment mechanism; the temperature inside the signal processing module housing 7 can be monitored in real time through the temperature sensor 27, and the position adjustment mechanism, the wind heat dissipation device 13 or the heating plate 14 can be activated according to the temperature; when the temperature inside the signal processing module housing 7 is too high, the wind heat dissipation device 13 will be activated accordingly, and cooling wind can be generated through the wind heat dissipation device 13, so as to reduce the overall temperature of the signal processing module housing 7 itself; The position adjustment mechanism includes a moving motor 9, the output shaft of the moving motor 9 is connected to a moving threaded rod 10 through a coupling, both sides of the outer surface of the moving threaded rod 10 are sleeved with an internal thread sleeve 11 connected thereto through a threaded structure, and the lower end surfaces of the two internal thread sleeves 11 are fixed to the mounting plate 12; Both sides below the movable threaded rod 10 are provided with a guide rod 16 that moves horizontally and penetrates the mounting plate 12, and the two ends of the guide rod 16 are fixed to the inner wall of the concave platform 8; when the temperature of the signal processing module housing 7 itself is too low, the movable motor 9 will be started accordingly, and the movable threaded rod 10 connected thereto can be driven to rotate by the movable motor 9. Since the internal threaded sleeve 11 sleeved on the outer surface of the movable threaded rod 10 is fixedly connected to the mounting plate 12 penetrated by the two guide rods 16, the internal threaded sleeve 11 itself cannot rotate. When the movable threaded rod 10 rotates, the internal threaded sleeve 11 that is threadedly connected thereto but cannot rotate by itself will move back and forth under the drive of the threaded structure. At this time, the internal threaded sleeve 11 moves forward, and the mounting plate 12 fixed thereto during the forward movement of the internal threaded sleeve 11 will move forward together. As the mounting plate 12 moves forward, the wind heat dissipation device 13 will move from the signal The upper end of the signal processing module shell 7 will leave, and the temperature locking cotton 15 fixed on the lower end surface of the heating plate 14 will contact the upper end surface of the signal processing module shell 7. When the heating plate 14 is completely moved to the top of the signal processing module shell 7, the moving motor 9 will be turned off, and then the heating plate 14 will be started. The heating plate 14 can increase the temperature of the temperature locking cotton 15 and the signal processing module shell 7 that is in contact with the temperature locking cotton 15. Through the above technical scheme, when the temperature of the signal processing module shell 7 itself is too high, it can be cooled down. When the temperature of the signal processing module shell 7 itself is too low, it can be heated. This ensures that the signal processing module shell 7 has a suitable operating environment temperature no matter what weather it works in. The above technical scheme can prevent the signal processing module shell 7 located inside the device from being affected by high or low temperatures from the outside.
[0025] A fixed motor 18 fixedly mounted inside the housing of the mounting plate 12 is provided below the movable threaded rod 10, and the output shaft of the fixed motor 18 is connected to a square rotating shaft 19 through a coupling, and a fixed threaded rod 20 connected to the mounting plate 12 through a threaded structure is provided on the outer side of the square rotating shaft 19, and a square slot 28 is provided in the middle position of the upper end surface of the fixed threaded rod 20, and the square rotating shaft 19 is inserted into the inside of the square slot 28; when the heating plate 14 is moved to the top of the signal processing module housing 7, the fixed motor 18 will be started accordingly, and the fixed motor 18 can drive the square rotating shaft 19 connected thereto to rotate.
[0026] The inner wall cross-section of the square slot 28 is a square, the outer surface of the square shaft 19 fits with the inner wall of the square slot 28, and the square shaft 19 and the square slot 28 are slidingly connected; since the outer surface of the square shaft 19 fits with the inner wall of the square slot 28 located on the upper end surface of the fixed threaded rod 20, when the square shaft 19 rotates, the fixed threaded rod 20 will rotate therewith, and when the fixed threaded rod 20 rotates, driven by the threaded structure, the rotating fixed threaded rod 20 can move up and down, and the fixed threaded rod 20 is moved downward at this time.
[0027] A push head 21 is fixedly provided on the lower end surface of the fixed threaded rod 20, and a rectangular push block 22 is provided on both sides below the push head 21. The surface of the rectangular push block 22 facing the push head 21 is an inclined surface 23, and a spring 24 is connected to one side of the outer surface of the rectangular push block 22; a connecting rod 25 fixed to the outer surface of the rectangular push block 22 is provided below the spring 24, and one end of the connecting rod 25 is fixedly connected to a fixed tooth row 26, and a tooth row 17 is provided on one side of the fixed tooth row 26. The top ends of the tooth heads located on the outer surfaces of the fixed tooth row 26 and the tooth row 17 are both arc-shaped, and the two tooth rows 17 are respectively fixed between the two guide rods 16; as the fixed threaded rod 20 descends, the The push head 21 will move downwards therewith, and the downwardly moving push head 21 will contact the inclined surface 23 located on the outer surface of the rectangular push block 22 and push the rectangular push block 22 outwards. During the outward movement of the rectangular push block 22, the fixed tooth row 26 connected to it by the connecting rod 25 will move outwards therewith, and the tooth heads on the outwardly moving fixed tooth row 26 will engage with the tooth heads on the tooth row 17 fixed to the guide rod 16, so as to fix the mounting plate 12 at the current position. By fixing the mounting plate 12, it is possible to prevent the mounting plate 12 from moving forward and backward due to the inertia of the drone during flight, thereby causing the position deviation of the heating plate 14 and the wind cooling device 13. Since the top ends of the teeth on the fixed tooth row 26 and the tooth row 17 are both arc-shaped, even if the teeth on the fixed tooth row 26 and the tooth row 17 collide directly, they can be offset by the push of the arc surface. The above technical solution can prevent the fixed tooth row 26 and the tooth row 17 from being unable to engage with each other. When the rectangular pushing block 22 is pushed outward, it will squeeze the spring 24 connected to it. When the mounting plate 12 needs to be released, the square rotating shaft 19 connected to it is driven by the fixed motor 18 to rotate in the opposite direction, so as to move the pushing head 21 upward. As the pushing head 21 rises, the rectangular pushing block 22, the connecting rod 25 and the fixed gear row 26 will be pushed back to their original positions under the influence of the reaction force of the spring 24.
[0028] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.
Claims
1. An airborne SBUS signal processing system, characterized in that ,include: Circuit module: used to receive the SBUS control signal message sent by the remote control device, and convert the SBUS control signal message sent by the remote control device into an RS232 protocol message, which includes a DB9 interface, a power supply and voltage stabilization module, an SBUS receiving module, and an SBUS to RS232 module; Shell module: used to seal the circuit module and fix the circuit module to the body of the aircraft, which includes an upper cover, upper cover fixing bolt holes, a shell, a plug installation hole, an antenna hole and a shell fixing bolt hole.
2. The airborne SBUS signal processing system according to claim 1, characterized in that: The DB9 interface can be connected to the aircraft through a cable to provide power to the circuit module and to provide communication between the circuit module and the aircraft.
3. An airborne SBUS signal processing system according to claim 2, characterized in that: The SBUS receiving module is used to receive the SBUS control signal message sent by the remote control device, and send the SBUS control signal message to the SBUS to RS232 module.
4. The airborne SBUS signal processing system according to claim 3, characterized in that: The SBUS to RS232 module converts the received SBUS control signal message into an RS232 protocol message, and transmits the converted RS232 protocol message to the controller in the aircraft through the DB9 interface.
5. A signal processing module structure for the airborne SBUS signal processing system according to any one of claims 1 to 4, comprising a signal processing module housing (7), characterized in that: An ambient temperature adaptation mechanism is provided on the outer side of the signal processing module housing (7), the ambient temperature adaptation mechanism comprising a mounting plate (12), a wind heat dissipation device (13), a heating plate (14), a temperature lock cotton (15) and a position adjustment mechanism, the wind heat dissipation device (13) is fixed to the upper end surface of the mounting plate (12) at a position close to the front end surface thereof, and the wind heat dissipation device (13) is located above the signal processing module housing (7); The heating plate (14) is fixed to the upper end surface of the mounting plate (12) at a position close to the rear end surface of the mounting plate (12), and the temperature-locking cotton (15) is fixed to the lower end surface of the heating plate (14), and the position adjustment mechanism is capable of pushing the mounting plate (12) parallel to the top of the signal processing module housing (7).
6. The signal processing module structure of the airborne SBUS signal processing system according to claim 5, characterized in that: A temperature sensor (27) is fixedly mounted on one side of the upper end surface of the signal processing module housing (7), and the temperature sensor (27) is electrically connected to the position adjustment mechanism; The position adjustment mechanism comprises a moving motor (9), the output shaft of the moving motor (9) being connected to a moving threaded rod (10) via a coupling, both sides of the outer surface of the moving threaded rod (10) being sleeved with an internal threaded sleeve (11) connected thereto via a threaded structure, and the lower end surfaces of the two internal threaded sleeves (11) being fixed to a mounting plate (12); A guide rod (16) is provided on both sides below the movable threaded rod (10) and is movable transversely through the mounting plate (12), and both ends of the guide rod (16) are fixed to the inner wall of the concave platform (8).
7. The signal processing module structure of the airborne SBUS signal processing system according to claim 6, characterized in that: A fixed motor (18) is provided below the movable threaded rod (10) and is fixedly mounted inside the housing of the mounting plate (12); an output shaft of the fixed motor (18) is connected to a square rotating shaft (19) via a coupling; a fixed threaded rod (20) connected to the mounting plate (12) via a threaded structure is provided on the outside of the square rotating shaft (19); a square slot (28) is provided at the middle position of the upper end surface of the fixed threaded rod (20), and the square rotating shaft (19) is inserted into the inside of the square slot (28).
8. The signal processing module structure of the airborne SBUS signal processing system according to claim 7, characterized in that: The inner wall cross-section of the square slot (28) is in the shape of a square, the outer surface of the square rotating shaft (19) fits the inner wall of the square slot (28), and the square rotating shaft (19) and the square slot (28) are slidably connected.
9. The signal processing module structure of the airborne SBUS signal processing system according to claim 7, characterized in that: A push head (21) is fixedly provided on the lower end surface of the fixed threaded rod (20), and a rectangular push block (22) is provided on both sides below the push head (21), the surface of the rectangular push block (22) facing the push head (21) is an inclined surface (23), and a spring (24) is connected to one side of the outer surface of the rectangular push block (22).
10. The signal processing module structure of the airborne SBUS signal processing system according to claim 9, characterized in that: A connecting rod (25) fixed to the outer surface of the rectangular push block (22) is provided below the spring (24); one end of the connecting rod (25) is fixedly connected to a fixed tooth row (26); one side of the fixed tooth row (26) is provided with a tooth row (17); the top ends of the tooth heads located on the outer surfaces of the fixed tooth row (26) and the tooth row (17) are both arc-shaped, and the two tooth rows (17) are respectively fixed to the two guide rods (16).