Onboard SBUS signal processing system and signal processing module structure thereof
By designing an airborne SBUS signal processing system, protocol conversion and environmental temperature adaptation of SBUS signals were achieved, solving the compatibility and temperature-related issues of the UAV system and improving the flexibility and stability of the UAV control system.
Patent Information
- Application Number
- CN202423242228.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-27
- Publication Date
- 2025-11-21
- Estimated Expiration
- 2034-12-27
AI Technical Summary
When existing UAV systems receive signals from remote control terminals, most receivers and remote control terminals rely on the SBUS protocol for communication, which is incompatible and lacks flexibility. External temperature affects the operation of the signal processing module, leading to overheating or reduced saturation current, thus affecting output power.
An airborne SBUS signal processing system was designed, including a circuit module and a housing module. The circuit module receives and converts SBUS signals into RS232 protocol. The housing module has an ambient temperature adaptation mechanism, including a fan-powered heat dissipation device and a heating plate. The heat dissipation or heating is adjusted by a temperature sensor to adapt to different temperatures.
It improves the flexibility of the UAV control system, ensures that the signal processing module works normally in different temperature environments, prevents overheating or overcooling, and stabilizes the output power.
Smart Images
Figure CN223584213U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The application relates to the technical field of signal processing, in particular to an airborne SBUS signal processing system and a signal processing module structure thereof. BACKGROUND
[0002] The SBUS signal is a serial communication protocol widely used in model remote controllers (receivers), and is a full name of Serial Bus.
[0003] With the development of unmanned aerial vehicle technology, unmanned aerial vehicles are widely used in the fields of investigation, surveying and mapping, search and rescue, forest fire prevention and the like. A ground station plays a vital role in guaranteeing normal flight and task completion of the unmanned aerial vehicle. Through a control terminal, the unmanned aerial vehicle can be monitored and controlled in flight. A signal processing system installed in the unmanned aerial vehicle and capable of accepting an SBUS signal and controlling the unmanned aerial vehicle according to the signal instruction can be referred to as an airborne SBUS signal processing system and a signal processing module structure thereof.
[0004] However, when receiving a remote control terminal signal, most receivers and remote control terminals rely on SBUS protocol for communication. This is incompatible with system instructions controlled by other protocols in the aircraft, and the flexibility is poor. Most existing aircraft are used in the outside world, and the temperature outside the world will affect the operation of the signal processing module located inside. If the temperature outside is too high, the signal processing module may overheat. If the temperature outside is too low, the saturation current of the transistor in the signal processing module may be reduced, thereby reducing the maximum value of the output voltage and affecting the output power of the signal processing module. Therefore, the existing demand is not met, and thus the present application provides an airborne SBUS signal processing system and a signal processing module structure thereof. SUMMARY
[0005] The application aims to provide an airborne SBUS signal processing system and a signal processing module structure thereof to solve the problems in the background art that when receiving a remote control terminal signal, most receivers and remote control terminals rely on SBUS protocol for communication. This is incompatible with system instructions controlled by other protocols in the aircraft, and the flexibility is poor. Most existing aircraft are used in the outside world, and the temperature outside the world will affect the operation of the signal processing module located inside. If the temperature outside is too high, the signal processing module may overheat. If the temperature outside is too low, the saturation current of the transistor in the signal processing module may be reduced, thereby reducing the maximum value of the output voltage and affecting the output power of the signal processing module.
[0006] In order to achieve the above object, the present application provides the following technical scheme: an airborne SBUS signal processing system, comprising:
[0007] The circuit module is used for receiving the SBUS control signal message sent by the remote control device and converting the SBUS control signal message sent by the remote control device into an RS protocol message, and comprises a DB interface, a power supply and voltage stabilizing module, an SBUS receiving module and an SBUS to RS module.
[0008] The shell module is used for sealing the circuit module and fixing the circuit module and the body of the aircraft, and comprises an upper cover, an upper cover fixing bolt hole, a shell, a plug mounting hole, an antenna hole and a shell fixing bolt hole.
[0009] Preferably, the DB interface can be connected with the aircraft through a cable, so as to realize the power supply of the circuit module and the communication between the circuit module and the aircraft.
[0010] Preferably, the SBUS receiving module is used for receiving the SBUS control signal message sent by the remote control device and sending the SBUS control signal message to the SBUS to RS232 module.
[0011] 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.
[0012] A signal processing module structure for an airborne SBUS signal processing system, comprising a signal processing module shell, an environmental temperature adapting mechanism is arranged on the outer side of the signal processing module shell, the environmental temperature adapting mechanism comprises a mounting plate, a wind cooling device, a heating plate, temperature locking cotton and a position adjusting mechanism, the wind cooling device is fixed to the upper end face of the mounting plate close to the front end face thereof, and the wind cooling device is located above the signal processing module shell;
[0013] The heating plate is fixed to the upper end face of the mounting plate close to the rear end face of the mounting plate, and the temperature locking cotton is fixed to the lower end face of the heating plate, and the position adjusting mechanism can push the mounting plate in parallel above the signal processing module shell.
[0014] Preferably, a temperature sensor is fixedly installed on one side of the upper end face of the signal processing module shell, and the temperature sensor is electrically connected with the position adjusting mechanism;
[0015] The position adjusting mechanism comprises a moving motor, a moving threaded rod is connected with the output shaft of the moving motor through a shaft coupling, two inner threaded sleeves which are connected with the moving threaded rod through a threaded structure are arranged on the outer surface of the moving threaded rod, and the lower end faces of the two inner threaded sleeves are fixed with the mounting plate.
[0016] The two sides below the mobile threaded rod are provided with a transverse movable guide rod penetrating the installation plate, and the two ends of the guide rod are fixed with the inner wall of the concave table.
[0017] Preferably, the lower side of the mobile threaded rod is provided with a fixed motor fixedly installed inside the installation plate shell, the output shaft of the fixed motor is connected with a square rotating shaft through a shaft coupling, the outer side of the square rotating shaft is provided with a fixed threaded rod connected with the installation plate through a threaded structure, the middle position of the upper end surface of the fixed threaded rod is provided with a square slot, and the square rotating shaft is inserted into the inside of the square slot.
[0018] Preferably, the inner wall of the square slot is in the shape of a square, the outer surface of the square rotating shaft is matched with the inner wall of the square slot, and the square rotating shaft is connected with the square slot in sliding mode.
[0019] Preferably, the lower end surface of the fixed threaded rod is fixedly provided with a pushing head, the two sides below the pushing head are provided with a rectangular pushing block, the surface of the rectangular pushing block facing the pushing head is an inclined surface, and one side of the outer surface of the rectangular pushing block is connected with a spring.
[0020] Preferably, the lower side of the spring is provided with a connecting rod fixedly connected with the outer surface of the rectangular pushing block, one end of the connecting rod is fixedly connected with a fixed gear row, one side of the fixed gear row is provided with a gear row, the top end of the tooth head located on the outer surfaces of the fixed gear row and the gear row is in an arc shape, and the two gear rows are fixed with the two guide rods.
[0021] Compared with the prior art, the beneficial effects of the present application are:
[0022] 1. The circuit module of the present application can receive the SBUS control signal message sent by the remote control device, and convert the signal into an RS232 protocol message to transmit to the controller in the aircraft, so as to control the unmanned aerial vehicle controlled by other protocols through the SBUS control signal message, thereby improving the flexibility of the unmanned aerial vehicle control system.
[0023] 2. When the temperature of the signal processing module shell itself is too high, the environmental temperature adaptation mechanism can perform cooling treatment, and when the temperature of the signal processing module shell itself is too low, the environmental temperature adaptation mechanism can perform heating, so as to ensure that the signal processing module shell can have a suitable operating environment temperature in any weather, and the signal processing module shell inside the device can be prevented from being affected by high temperature or low temperature outside. BRIEF DESCRIPTION OF DRAWINGS
[0024] Figure 1Circuit schematic diagram of an embodiment of the whole application;
[0025] Figure 2 Workflow diagram of the circuit part of the application;
[0026] Figure 3 Working schematic diagram of the power supply and voltage stabilizing module of the application;
[0027] Figure 4 Structural schematic diagram of the shell part of the application;
[0028] Figure 5 Structural schematic diagram of the signal processing module shell inside the shell of the application;
[0029] Figure 6 Bottom structural side view of the signal processing module shell of the application;
[0030] Figure 7 Internal structural side view of the mounting plate of the application;
[0031] Figure 8 Structural enlarged view of A in the application Figure 7
[0032] In the figure: 1, upper cover; 2, shell; 3, upper cover fixing bolt hole; 4, plug mounting hole; 5, antenna hole; 6, shell fixing bolt hole; 7, signal processing module shell; 8, concave platform; 9, moving motor; 10, moving threaded rod; 11, internally threaded sleeve; 12, mounting plate; 13, wind cooling device; 14, heating plate; 15, temperature locking cotton; 16, guide rod; 17, gear rack; 18, fixed motor; 19, square rotating shaft; 20, fixed threaded rod; 21, push head; 22, rectangular push block; 23, inclined surface; 24, spring; 25, connecting rod; 26, fixed gear rack; 27, temperature sensor; 28, square slot. DETAILED DESCRIPTION
[0033] The technical solutions in the embodiments of the application will be clearly and completely described below with reference to the drawings in the embodiments of the application. Obviously, the described embodiments are only some of the embodiments of the application, but not all the embodiments of the application.
[0034] Please refer to Figures 1 to 8 , the application provides an embodiment: an airborne SBUS signal processing system, comprising:
[0035] Circuit module: used for receiving the SBUS control signal message sent by a remote control device, and converting the SBUS control signal message sent by the remote control device into an RS232 protocol message, comprising a DB9 interface, a power supply and voltage stabilizing module, an SBUS receiving module, and an SBUS to RS232 module;
[0036] The shell module is used for sealing the circuit module and fixing the circuit module between the aircraft body, comprising the upper cover 1, the upper cover fixing bolt hole 3, the shell 2, the plug mounting hole 4, the antenna hole 5 and the shell fixing bolt hole 6.
[0037] Before using the device, the power supply and voltage stabilizing module, the SBUS receiving module and the SBUS to RS232 module are installed in the inside of the shell 2, and the antenna on the SBUS receiving module is extended from the antenna hole 5 to the outside of the shell, so as to increase the communication distance with the remote control terminal. When the power supply and voltage stabilizing module, the SBUS receiving module and the SBUS to RS232 module are fixed, the DB9 interface is fixed through the plug mounting hole 4, the upper cover 1 is covered on the shell 2, and the screw is screwed into the upper cover fixing bolt hole 3 of the upper cover 1 to fix the upper cover 1 and the shell 2, so as to realize the effect of sealing and protecting the circuit module.
[0038] When the upper cover 1 and the shell 2 are fixed, the whole device is fixed on the aircraft body through the shell fixing bolt hole 6.
[0039] The DB9 interface can be connected with the aircraft through the cable, so as to realize the power supply of the circuit module and the communication between the circuit module and the aircraft. The power supply and voltage stabilizing module comprises a filter module and a voltage reducing module. When the aircraft starts, the power supply is transmitted to the circuit module through the cable, the filter module eliminates the peak, and the voltage reducing module reduces the voltage to the value required by the device, so as to ensure the power supply of the whole circuit module.
[0040] When the aircraft flies in the high altitude, the SBUS receiving module receives the SBUS control signal message sent by the remote control device, and sends the SBUS control signal message to the SBUS to RS232 module. 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, so as to realize the control of the unmanned aerial vehicle controlled by other protocols through the SBUS control signal message. Through the above technical scheme, the flexibility of the unmanned aerial vehicle control system is improved.
[0041] Based on the above system, a signal processing module structure for the airborne SBUS signal processing system is also proposed, comprising a signal processing module shell 7, an environmental temperature adapting mechanism is arranged on the outside of the signal processing module shell 7, the environmental temperature adapting mechanism comprises a mounting plate 12, a wind cooling device 13, a heating plate 14, a temperature locking cotton 15 and a position adjusting mechanism, the wind cooling device 13 is fixed on the upper end face of the mounting plate 12 close to the front end face, and the wind cooling device 13 is located above the signal processing module shell 7.
[0042] The heating plate 14 is fixed to the upper end face of the mounting plate 12 near the rear end face of the mounting plate 12, and the temperature locking cotton 15 is fixed to the lower end face of the heating plate 14. The position adjusting mechanism can push the mounting plate 12 in parallel above the signal processing module shell 7.
[0043] A temperature sensor 27 is fixedly installed on one side of the upper end face of the signal processing module shell 7, and is electrically connected between the temperature sensor 27 and the position adjusting mechanism. The temperature sensor 27 can monitor the temperature inside the signal processing module shell 7 in real time, and start the position adjusting mechanism, the air cooling device 13 or the heating plate 14 according to the temperature. When the temperature inside the signal processing module shell 7 is too high, the air cooling device 13 will be started, and the air cooling device 13 can generate cooling air to reduce the temperature of the signal processing module shell 7 as a whole.
[0044] The position adjusting mechanism comprises a moving motor 9. The output shaft of the moving motor 9 is connected with a moving threaded rod 10 through a shaft coupling. Two inner threaded sleeves 11 connected with the moving threaded rod 10 through a threaded structure are arranged on the outer surface of the moving threaded rod 10. The lower end faces of the two inner threaded sleeves 11 are fixed with the mounting plate 12.
[0045] The two sides below the mobile threaded rod 10 are provided with a transverse movable guide rod 16 penetrating the installation plate 12, and the two ends of the guide rod 16 are fixed between the inner wall of the concave table 8; when the temperature of the signal processing module shell 7 itself is too low, the mobile motor 9 will be started, and the mobile threaded rod 10 connected thereto can be rotated by the mobile motor 9. Since the internal threaded sleeve 11 sleeved on the outer surface of the mobile threaded rod 10 is fixedly connected with the installation plate 12 penetrated by the two guide rods 16, the internal threaded sleeve 11 cannot rotate by itself, and when the mobile threaded rod 10 rotates, the internal threaded sleeve 11 connected thereto but cannot rotate by itself will move forward and backward under the driving of the threaded structure. At this time, the internal threaded sleeve 11 moves forward, and the installation plate 12 fixedly connected therewith moves forward together. With the advance of the installation plate 12, the wind cooling device 13 will move away from the upper side of the signal processing module shell 7, and the temperature locking cotton 15 fixed to 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 upper side of the signal processing module shell 7, the mobile motor 9 will be turned off, and then the heating plate 14 will be started. The temperature of the temperature locking cotton 15 and the signal processing module shell 7 attached to the temperature locking cotton 15 can be increased by the heating plate 14. Through the above technical scheme, when the temperature of the signal processing module shell 7 itself is too high, it can be cooled, and when the temperature of the signal processing module shell 7 itself is too low, it can be heated. In this way, the signal processing module shell 7 inside the device can ensure that it has a suitable operating environment temperature in any weather, and the signal processing module shell 7 inside the device can be prevented from being affected by high temperature or low temperature outside.
[0046] The lower side of the mobile threaded rod 10 is provided with a fixed motor 18 fixedly installed in the inside of the installation plate 12, the output shaft of the fixed motor 18 is connected with a square shaft 19 through a shaft coupling, the outer side of the square shaft 19 is provided with a fixed threaded rod 20 connected with the installation plate 12 through a threaded structure, the middle position of the upper end surface of the fixed threaded rod 20 is provided with a square slot 28, and the square shaft 19 is inserted into the inside of the square slot 28; when the heating plate 14 is moved to the upper side of the signal processing module shell 7, the fixed motor 18 will be started, and the square shaft 19 connected therewith can be rotated by the fixed motor 18.
[0047] The inner wall cross section shape of the square slot 28 is square, the outer surface of the square rotating shaft 19 is attached to the inner wall of the square slot 28, and the square rotating shaft 19 is connected to the square slot 28 in sliding mode; because the outer surface of the square rotating shaft 19 is attached to the inner wall of the square slot 28 located on the upper end surface of the fixed threaded rod 20, when the square rotating shaft 19 rotates, the fixed threaded rod 20 will rotate together; when the fixed threaded rod 20 rotates, under the driving of the threaded structure, the rotating fixed threaded rod 20 can move up and down, at this time, the fixed threaded rod 20 moves downward.
[0048] The lower end surface of the fixed threaded rod 20 is fixedly provided with a push head 21, and the lower sides of the push head 21 are both provided with a rectangular push block 22; the surface of the rectangular push block 22 facing the push head 21 is an inclined surface 23, and one side of the outer surface of the rectangular push block 22 is connected with a spring 24; the lower side of the spring 24 is provided with a connecting rod 25 fixed to the outer surface of the rectangular push block 22, one end of the connecting rod 25 is fixedly connected with a fixed gear row 26, one side of the fixed gear row 26 is provided with a gear row 17, the top end of the gear head located on the outer surfaces of the fixed gear row 26 and the gear row 17 is arc-shaped, and the two gear rows 17 are fixed between the two guide rods 16; with the descent of the fixed threaded rod 20, the push head 21 fixed to the lower end surface of the fixed threaded rod 20 will move downward together, the downward 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 outward, the fixed gear row 26 connected to the rectangular push block 22 through the connecting rod 25 will move outward together in the process of moving outward, the gear head on the outward moving fixed gear row 26 will engage with the gear head on the gear row 17 fixed between the guide rods 16, so as to fix the mounting plate 12 at the current position; by fixing the mounting plate 12, the front and back movement of the mounting plate 12 due to the inertia of the unmanned aerial vehicle in flight can be prevented, so that the deviation of the positions of the heating plate 14 and the wind cooling device 13 occurs.
[0049] Because the top end of the gear head on the fixed gear row 26 and the gear row 17 is arc-shaped, even if the gear heads on the fixed gear row 26 and the gear row 17 directly collide, they can also be staggered under the pushing of the arc-shaped surface, so that the disengagement of the fixed gear row 26 and the gear row 17 can be prevented.
[0050] When it is necessary to release the fixation of the mounting plate 12, the square rotating shaft 19 connected to the fixed motor 18 is reversely rotated, so as to move the push head 21 upward, and with the upward movement of the push head 21, the rectangular push block 22, the connecting rod 25 and the fixed gear row 26 will be pushed back to the original position under the influence of the reaction force of the spring 24.
[0051] It will be apparent to those skilled in the art that the application is not limited to the details of the above-exemplified embodiments and that the present application can be implemented in other particular forms without departing from the spirit or essential characteristics of the present application. The embodiments should therefore be considered in all respects as illustrative and not restrictive, the scope of the application being indicated by the appended claims rather than by the above description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. No reference signs in the claims should be considered as limiting the scope of the claims with respect to the figures of the patent document.
Claims
1. An on-board SBUS signal processing system, characterized in that , comprising: Circuit module: for receiving SBUS control signal message sent by remote control device, and converting SBUS control signal message sent by remote control device into RS232 protocol message, which includes DB9 interface, power supply and voltage stabilizing module, SBUS receiving module and SBUS to RS232 module; Housing module: for sealing circuit module and fixing circuit module with aircraft body, which includes upper cover, upper cover fixing bolt hole, shell, plug mounting hole, antenna hole and shell fixing bolt hole.
2. An onboard SBUS signal processing system as claimed in claim 1, characterized in that: DB9 interface can be connected with aircraft through cable, so that power supply of circuit module and communication between circuit module and aircraft.
3. An onboard SBUS signal processing system as claimed in claim 2, characterised in that: SBUS receiving module is used for receiving SBUS control signal message sent by remote control device, and sending SBUS control signal message to SBUS to RS232 module.
4. An onboard SBUS signal processing system as claimed in claim 3, characterised in that: SBUS to RS232 module converts received SBUS control signal message into RS232 protocol message, and transmits converted RS232 protocol message to controller in aircraft through 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 The outer side of the signal processing module shell (7) is provided with an environmental temperature adapting mechanism, which comprises a mounting plate (12), a wind cooling device (13), a heating plate (14), temperature locking cotton (15) and a position adjusting mechanism, the wind cooling device (13) is fixed to the upper end face of the mounting plate (12) near the front end face, and the wind cooling device (13) is located above the signal processing module shell (7); The heating plate (14) is fixed to the upper end face of the mounting plate (12) near the rear end face of the mounting plate (12), and the temperature locking cotton (15) is fixed to the lower end face of the heating plate (14), and the position adjusting mechanism can push the mounting plate (12) in parallel above the signal processing module shell (7).
6. A signal processing module structure for an airborne SBUS signal processing system according to claim 5, characterized in that: A temperature sensor (27) is fixedly installed on one side of the upper end face of the signal processing module shell (7), and the temperature sensor (27) and the position adjusting mechanism are electrically connected; The position adjusting mechanism comprises a moving motor (9), a moving threaded rod (10) connected to the output shaft of the moving motor (9) through a shaft coupling, and an inner threaded sleeve (11) connected to the outer surface of the moving threaded rod (10) through a threaded structure, and the lower end faces of the two inner threaded sleeves (11) are fixed with the mounting plate (12); Two lateral guide rods (16) are arranged below the moving threaded rod (10) and penetrate the mounting plate (12), and the two ends of the guide rod (16) are fixed with the inner wall of the concave table (8).
7. A signal processing module structure for an airborne SBUS signal processing system according to claim 6, characterized in that: The lower part of the mobile screw rod (10) is provided with a fixed motor (18) fixedly installed in the inside of the mounting plate (12) shell, the output shaft of the fixed motor (18) is connected with a square rotating shaft (19) through a shaft coupling, the outer side of the square rotating shaft (19) is provided with a fixed screw rod (20) connected with the mounting plate (12) through a threaded structure, the middle position of the upper end surface of the fixed screw rod (20) is provided with a square slot (28), and the square rotating shaft (19) is inserted into the inside of the square slot (28).
8. A signal processing module structure for an airborne SBUS signal processing system according to claim 7, characterized in that: The inner wall cross section shape of the square slot (28) is a square, the outer surface of the square rotating shaft (19) is attached to the inner wall of the square slot (28), and the square rotating shaft (19) and the square slot (28) are connected in sliding mode.
9. The signal processing module structure of an airborne SBUS signal processing system according to claim 7, characterized in that: The lower end surface of the fixed screw rod (20) is fixedly provided with a push head (21), the two sides of the lower part of the push head (21) are both provided with a rectangular push block (22), the surface of the rectangular push block (22) facing the push head (21) is an inclined surface (23), and one side of the outer surface of the rectangular push block (22) is connected with a spring (24).
10. A signal processing module structure for an airborne SBUS signal processing system according to claim 9, characterized in that: The lower part of the spring (24) is provided with a connecting rod (25) fixed to the outer surface of the rectangular push block (22), one end of the connecting rod (25) is fixedly connected with a fixed gear rack (26), one side of the fixed gear rack (26) is provided with a gear rack (17), the top end of the tooth head on the outer surfaces of the fixed gear rack (26) and the gear rack (17) is arc-shaped, and the two gear racks (17) are fixed between the two guide rods (16).