Unmanned manned aircraft lifesaving system

Abstract

The invention belongs to the field of aviation, and particularly relates to an unmanned manned aircraft lifesaving system which comprises a propeller chassis with multiple rotor wings and a cabin. Wherein the cabin is mounted on the propeller chassis through explosive bolts; the cabin is provided with an airborne control center, a lifesaving handle, a seat restraint system and a parachute shooting rocket; when the airborne control center judges that the aircraft is in an emergency state, the airborne control center sends out an electric starting signal; when a passenger opens the lifesaving handle, the lifesaving handle sends out a detonation signal and an electric signal, and the electric signal starts the airborne control center to directly send out an electric starting signal; after the parachute shooting rocket and the explosive bolt receive an electric starting signal or a detonation signal, the explosive bolt is detonated, the propeller chassis is separated from the cabin, and the parachute shooting rocket ejects the parachute, so that the cabin slowly lands.

Description

Technical Field

[0001] The present application belongs to the field of aviation, and in particular to a life-saving system for an unmanned manned aircraft. Background Art

[0002] Unmanned manned aerial vehicles, as a special type of drone, have initially appeared on the market. This application uses fly-by-wire and detonation as control media to invent a dual-redundancy life-saving method for unmanned aerial vehicles, which can provide life-saving functions for the occupants when the unmanned manned aerial vehicle is in emergency conditions such as stall. Summary of the invention

[0003] In order to solve the above problems, the present application provides 1. an unmanned manned aircraft life-saving system, comprising:

[0004] A propeller chassis and cockpit with multiple rotors;

[0005] The cockpit is mounted on the propeller chassis by explosive bolts; the cockpit has an onboard control center, life-saving handles, seat restraint system and parachute rockets;

[0006] When the onboard control center determines that the aircraft is in an emergency state, the onboard control center sends an electric start signal;

[0007] When the crew turns on the life-saving handle, the life-saving handle sends out a detonation signal and an electrical signal, and the electrical signal activates the onboard control center to directly send out an electrical start signal;

[0008] After the parachute rocket and explosive bolt receive the electric start signal or the detonation signal, the explosive bolt detonates to separate the propeller chassis from the cockpit, and the parachute rocket shoots out the parachute, causing the cockpit to slowly land.

[0009] Preferably, the cockpit also has multiple protective airbags. After the onboard control center sends an electric start signal and the onboard control center determines that the cockpit is less than a certain height from the ground, the protective airbags are fired and activated, and the protective airbags are inflated and expanded to form air cushions; the protective airbags are directly fired and activated after receiving a detonation signal.

[0010] Preferably, the cockpit further comprises a seat restraint system, which forcibly restrains the occupant to the seat after receiving the detonation signal or the electric start signal.

[0011] Preferably, the airborne control center is connected to an inertial navigation system, which is used to measure the current flight information of the aircraft. The airborne control center determines whether the aircraft is in an emergency state based on the flight information.

[0012] Preferably, the flight information includes: speed, acceleration, angular velocity, and angular acceleration.

[0013] Preferably, the airborne control center is connected to a rangefinder, which is used to measure the cabin altitude. The airborne control center determines whether the cabin altitude from the ground is less than a certain altitude based on the altitude.

[0014] Preferably, the certain height includes but is not limited to 11 meters or 7 meters.

[0015] Preferably, the propeller chassis also has a jettison rocket, which is activated after a certain delay after receiving an electric start signal or a detonation signal, and jettisons the propeller chassis from the cockpit.

[0016] Preferably, the certain time is 0.5 seconds.

[0017] Preferably, the propeller chassis also has a throwing rocket, which is activated in conjunction with the activation of the explosive bolt to throw the propeller chassis away from the cockpit.

[0018] Preferably, the electric starting signal and the detonation signal are transmitted via different lines.

[0019] Preferably, the parachute rocket and the explosive bolt are connected to the circuits for transmitting the electric starting signal and the detonation signal respectively through different interfaces.

[0020] Preferably, the parachute rocket and the explosive bolt are started by different starting devices after receiving the electric starting signal or the detonation signal.

[0021] Preferably, the rocket launcher, the seat restraint system and the protective airbag are connected to the circuits for transmitting the electric start signal and the detonation signal respectively through different interfaces.

[0022] Preferably, the rocket jettisoning, the seat restraint system and the protective airbag are activated by different activation devices after receiving the electric activation signal or the detonation signal.

[0023] The advantages of the present application include: the present application provides a dual-redundancy life-saving method, which can provide life-saving functions for passengers when the unmanned manned aircraft is in an emergency condition such as stall, and the dual-redundancy design makes it more reliable. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a framework diagram of an unmanned manned aircraft life-saving system according to a preferred embodiment of the present application.

[0025] Figure 2 This is a flowchart of the automatic start-up working condition of an unmanned aerial vehicle emergency life-saving according to a preferred embodiment of the present application;

[0026] Figure 3 This is a flow chart of the manual start-up operating conditions for emergency life-saving of an unmanned aerial vehicle according to a preferred embodiment of the present application. DETAILED DESCRIPTION

[0027] In order to make the technical solution and advantages of the present application clearer, the technical solution of the present application will be further described in detail in detail and in detail in conjunction with the accompanying drawings. It can be understood that the specific embodiments described here are only partial embodiments of the present application, which are only used to explain the present application, not to limit the present application. It should be noted that, for the convenience of description, only the parts related to the present application are shown in the accompanying drawings, and other related parts can refer to the general design. In the absence of conflict, the embodiments in the present application and the technical features in the embodiments can be combined with each other to obtain new embodiments.

[0028] like Figure 1-Figure 3 As shown, the unmanned manned aircraft life-saving system includes a cockpit, a parachute rocket, a protective airbag and a propeller chassis, wherein the cockpit includes an onboard control center, an inertial navigation system, a rangefinder, a life-saving handle and a seat restraint system; the propeller chassis includes a chassis body and a launching rocket, and the propeller chassis and the cockpit are connected by explosive bolts.

[0029] The present application has two working modes of emergency life-saving automatic start and manual start. The automatic start working mode is started after the onboard control center determines that the aircraft has stalled or a serious fault has occurred, resulting in the inability to fly and land normally. The manual start working mode is started after the crew pulls the life-saving handle.

[0030] The cockpit and propeller chassis are the basic structure of the unmanned manned aircraft. Specifically, the airborne control center is installed inside the cockpit and is the control center of the aircraft life-saving system. It can receive the life-saving start signal from the life-saving handle, and after receiving the life-saving start signal, it sends a life-saving control signal to control the seat restraint system to force the occupant to be restrained to the seat, the parachute rocket to ignite and release the parachute, the explosive bolt to detonate to separate the propeller chassis from the cockpit, and the rocket to be fired and thrown away from the cockpit; the airborne control center can receive the flight information sent by the inertial navigation. When it is determined that the aircraft has stalled or a serious fault has occurred, resulting in the inability to fly and land normally, the airborne control center starts the emergency life-saving automatic start mode, sends a life-saving control signal, controls the seat restraint system, etc.; the airborne control center can receive the ground height information sent by the rangefinder. When the airborne control center determines that the cockpit height from the ground is ≤11m, it fires the protective airbag, which inflates and expands to form an air cushion.

[0031] The inertial navigation system is installed inside the cockpit, i.e. the airborne inertial navigation system, which can measure the current speed, acceleration, angular velocity, angular acceleration and other flight information of the aircraft. The inertial navigation information is transmitted to the airborne control center in real time;

[0032] The rangefinder is installed at the bottom of the cockpit, which can measure the height of the aircraft from the ground and transmit the height information to the onboard control center in real time;

[0033] The life-saving handle is installed on the side wall of the cockpit occupant and can be pulled by the occupant. When the occupant pulls it, the life-saving handle sends out two emergency life-saving start signals at the same time, namely, a detonation signal and an electrical signal: the detonation signal is transmitted to the seat restraint system, the parachute rocket, the explosive bolt, the jettison rocket and the protective airbag. Afterwards, the seat restraint system forces the occupant to be restrained to the seat, the parachute rocket ignites to release the parachute, the explosive bolt detonates to separate the propeller chassis from the cockpit, and the jettison rocket is fired and jettisoned away from the cockpit.

[0034] The seat restraint system is installed on the cockpit seats and can be activated by both electricity and detonation media. After activation, the seat restraint device can forcibly restrain the occupants on the seats.

[0035] The parachute rocket is installed on the top of the outer side of the cabin and can be activated by two media, electricity and detonation. After activation, the parachute rocket will shoot out a parachute, causing the cabin to land slowly within a certain speed range.

[0036] The protective airbag is installed at the bottom of the outer side of the cabin and can be activated by two media, electricity and detonation. After activation, the protective airbag is inflated and expanded to form an air cushion, activating the cabin landing buffer function.

[0037] The propeller chassis is installed at the bottom of the cockpit, and propellers are arranged at the four corners. It serves as the main power device for the aircraft to fly. After the emergency life-saving procedure is initiated, the propeller chassis needs to be separated from the cockpit and thrown away.

[0038] Specifically, the chassis body is connected to the cockpit by explosive bolts. When the explosive bolts are actuated, the chassis body is separated from the cockpit, and then the rocket is released to eject the chassis body from the cockpit.

[0039] The jettison rocket is installed on the chassis body and can be activated by electricity and detonation. The jettison rocket has a built-in delay device to ensure that the chassis body is completely separated from the cockpit before jettisoning the chassis body.

[0040] The explosive bolts connect the cockpit and the chassis body and can be activated by both electricity and detonation. After activation, the cockpit and the chassis body are disconnected.

[0041] The main structure of a certain type of unmanned manned aircraft is a manned cockpit and a multi-rotor chassis, which are connected by explosive bolts. A right-shooting parachute rocket is installed above the cockpit, and there is a compressed protective airbag at each of the four corners of the bottom. The seats in the cockpit are equipped with a restraint system that can be forcibly tightened, and a life-saving handle is installed on the side wall of the cockpit. The working process of the life-saving system is as follows:

[0042] 1) Automatic start-up of emergency life-saving

[0043] When the propeller of an unmanned manned aircraft loses power due to a malfunction and the flight attitude of the aircraft is uncontrollable, the inertial navigation system will input the monitored flight data into the onboard control center. The onboard control center will determine that the aircraft has lost its stable landing function, initiate the emergency life-saving procedure, and send an electric start signal to the seat restraint system, parachute rocket, explosive bolts and jettison rockets: after receiving the electric start signal, the seat restraint system will forcibly tighten the occupants and restrain them on the seats; the parachute rocket will shoot out the parachute; the explosive bolts will detonate to separate the propeller chassis from the cockpit; the jettison rocket will work after a delay of 0.5s to jettison the propeller chassis from the cockpit.

[0044] When the rangefinder measures that the height of the cabin from the ground is ≤11m, the onboard control center sends an electric start signal to the protective airbag, which inflates and opens to form an air cushion at the bottom of the cabin to provide cushioning and shock absorption when the cabin lands.

[0045] 2) Emergency life-saving manual start condition

[0046] When the cabin occupant manually pulls the life-saving handle, the life-saving handle sends a detonation signal to the seat restraint system, parachute rocket, explosive bolt, jettison rocket and protective airbag; sends an electric start signal to the airborne control center: after receiving the detonation signal, the seat restraint system forcibly tightens the occupant and restrains them on the seat; the parachute rocket shoots out the parachute; the explosive bolt detonates to separate the propeller chassis from the cockpit; the cover jettison rocket works after a delay of 0.5s to jettison the propeller chassis from the cockpit; the protective airbag inflates and opens to form an air cushion at the bottom of the cockpit to cushion and reduce shock when the cockpit lands. After receiving the electrical signal, the airborne control center sends an electric start signal to achieve dual-redundancy control.

[0047] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any changes or substitutions that can be easily thought of by a person skilled in the art within the technical scope disclosed in the present application should be included in the protection scope of the present application. Therefore, the protection scope of the present application shall be based on the protection scope of the claims.

Claims

1. An unmanned manned aircraft life-saving system, characterized in that: include: A propeller chassis and cockpit with multiple rotors; The cockpit is mounted on the propeller chassis by explosive bolts; the cockpit has an onboard control center, life-saving handles, seat restraint system and parachute rockets; When the onboard control center determines that the aircraft is in an emergency state, the onboard control center sends an electric start signal; When the crew turns on the life-saving handle, the life-saving handle sends out a detonation signal and an electrical signal, and the electrical signal activates the onboard control center to directly send out an electrical start signal; After the parachute rocket and explosive bolt receive the electric start signal or the detonation signal, the explosive bolt detonates to separate the propeller chassis from the cockpit, and the parachute rocket shoots out the parachute, causing the cockpit to slowly land.

2. The unmanned manned aircraft life-saving system according to claim 1, characterized in that: The cockpit also has multiple protective airbags. After the onboard control center sends an electric start signal and the onboard control center determines that the cockpit is less than a certain height from the ground, the protective airbags are triggered and inflated to form an air cushion. The protective airbags are directly triggered and started after receiving a detonation signal.

3. The unmanned manned aircraft life-saving system according to claim 1, characterized in that: The cockpit also has a seat restraint system, which forcibly restrains the occupants to the seats after receiving a detonation signal or an electric start signal.

4. The unmanned manned aircraft life-saving system according to claim 1, characterized in that: The onboard control center is connected to an inertial navigation system, which is used to measure the current flight information of the aircraft. The onboard control center uses the flight information to determine whether the aircraft is in an emergency state.

5. The unmanned manned aircraft life-saving system according to claim 4, characterized in that: The flight information includes: speed, acceleration, angular velocity, and angular acceleration.

6. The unmanned manned aircraft life-saving system according to claim 1, characterized in that: The onboard control center is connected to a rangefinder for measuring the cabin altitude. The onboard control center determines whether the cabin altitude from the ground is less than a certain altitude based on the altitude.

7. The unmanned manned aircraft life-saving system according to claim 6, characterized in that: The certain height includes but is not limited to 11 meters or 7 meters.

8. The unmanned manned aircraft life-saving system according to claim 1, characterized in that: The propeller chassis also has a jettison rocket, which, upon receiving an electric start signal or a detonation signal, is activated after a certain delay, and jettisons the propeller chassis from the cockpit.

9. The unmanned manned aircraft life-saving system according to claim 8, characterized in that: The certain time is 0.5 seconds.

10. The unmanned manned aircraft life-saving system according to claim 8, characterized in that: The propeller chassis also has a jettison rocket, which is activated in conjunction with the activation of the explosive bolt to jettison the propeller chassis away from the cockpit.

11. The unmanned manned aircraft life-saving system according to claim 1, characterized in that: The electric start signal and the detonation signal are transmitted using different lines.

12. The unmanned manned aircraft life-saving system according to claim 11, characterized in that: The parachute rocket and the explosive bolt are connected to the circuits for transmitting the electric starting signal and the detonation signal respectively through different interfaces.

13. The unmanned manned aircraft life-saving system according to claim 12, characterized in that: After receiving an electric start signal or a detonation signal, the parachute rocket and the explosive bolt are started using different starting devices.

14. The unmanned manned aircraft life-saving system according to claim 2, 3 or 8, characterized in that: The rocket launcher, seat restraint system and protective airbag are connected to the circuits transmitting the electric starting signal and the detonation signal through different interfaces.

15. The unmanned manned aircraft life-saving system according to claim 14, characterized in that: The jettison rocket, seat restraint system and protective airbag are activated by different starting devices after receiving an electric starting signal or a detonation signal.

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