CN108891609B - Hanging object emergency release system and release method based on system safety - Google Patents

Abstract

The present invention relates to a system safety-based emergency throwing system for suspended objects and a throwing method. The system-safe emergency throwing system for suspended objects of the present invention provides double guarantees for the self-destruction of suspended objects in dangerous situations. Destruction and emergency activation control the self-destruction and delivery of suspended objects; on the other hand, when the aircraft decoupling fails and cannot be decoupled, the pilot can urgently turn on the "dangerous part cutting" switch to complete the dangerous part cutting and ensure the safety of the aircraft. The invention cuts dangerous parts in emergency situations, separates the components of explosives, avoids explosion caused by mutual contact, and avoids damage to ground facilities and personnel after emergency release. By allowing the self-destruction signal to enable emergency activation and cutting of dangerous parts, the invention avoids single signal and false triggering through chain setting of signals, thereby improving the reliability of the system.

Description

A system safety-based emergency throwing system and throwing method for hanging objects

technical field

The invention relates to a system safety-based emergency throwing system and throwing method for suspended objects, belonging to the technical field of aircraft safety.

Background technique

The function of emergency release of aircraft suspensions is widely used in the design of aircraft-suspension systems. The main consideration is that the suspensions cannot affect the safety of the aircraft. In emergencies, the pilot can take the initiative to release the suspensions by loosening the hooks. Often this method is to throw away the aircraft suspension through the pilot's human judgment and operation. In traditional cases, the negative effect of this design method based on the pilot's human judgment is very small. However, in special cases, the pilot directly abandons the hanging objects based on the judgment of the aircraft and their own safety, which may bring serious consequences, such as hanging objects. With explosives.

In the case of the hanging object with explosives, if the aircraft returns with the hanging object in an emergency situation, it may encounter situations such as insufficient hook strength, and the distance between the hanging object and the ground is too small during the landing process, which may cause an explosion and cause the aircraft to explode. Destruction. Therefore, it is necessary to enable the pilot to jettison the suspension in the air according to the special handling plan or to cut off the part of the suspension with explosives.

Based on the system design of emergency release of suspended objects based on system safety, the interaction function between the aircraft and the suspended objects is designed. According to the actual situation, the pilot sends an emergency release instruction to the hanging object through the aircraft. After the hanging object receives the instruction, it will start the independent work function. After the failure of the dangerous device is processed, the hanging object will send the prepared information back to the aircraft, and the aircraft can carry out the emergency delivery process. . As the situation of general emergency delivery is very critical, the reliability and interaction time should be fully considered in the design.

In order to improve the safety of the aircraft-suspension system, it is necessary to invent a design method for the emergency release of the suspension based on the system safety, so as to realize the system safety of the emergency release.

SUMMARY OF THE INVENTION

The purpose of the present invention is to overcome the deficiencies of the prior art, and to provide a system safety-based emergency throwing system and throwing method for suspended objects. By controlling the combination of self-destruction of suspended objects and cutting of dangerous parts, the safety of the aircraft-suspended object system is improved. .

The object of the present invention is achieved through the following technical solutions:

Provided is an emergency delivery system for suspended objects based on system safety, including a control module that allows self-destruction, a control module for cutting dangerous parts and an emergency activation control module;

Allow the self-destruction control module to receive the allowable self-destruction signal sent by the aircraft computer, enable the dangerous part cutting control module and the emergency activation control module, and send the allowable self-destruction signal to the hanging object computer;

After the emergency activation control module is enabled, after receiving the emergency activation signal sent by the aircraft computer, it sends the emergency activation signal to the hanging object computer to enable the hanging object battery-powered explosives;

After the dangerous part cutting control module is enabled, after receiving the dangerous part cutting signal sent by the aircraft computer, it sends out the dangerous part cutting signal to control the dangerous part to be separated from the hanging object.

Preferably, the allowable self-destruction control module collects the allowable self-destruction signal sent by the aircraft computer through an optocoupler, and controls the dangerous part cutting control module and the emergency activation control module through relay control.

Preferably, the emergency activation control module receives the emergency activation signal sent by the aircraft computer through the optocoupler acquisition module, and sends it to the suspended object computer.

Preferably, after the suspension computer receives the allowable self-destruction signal and the emergency activation signal, after judging that the battery of the suspension is normally transferred to electricity, it returns to the aircraft computer to prepare the signal for self-destruction, and after receiving the decoupling signal, it controls the suspension to execute explosives. Failure handling.

Preferably, the method for performing the failure treatment of explosives and explosives is to separate the components of the explosives to avoid explosion caused by mutual contact.

Preferably, the method for the dangerous part cutting control module to control the separation of the dangerous part from the hanging object is to control the conduction of the corresponding relay, cut the dangerous part, and control the dangerous part to be separated from the hanging object by blasting the explosive material.

At the same time, a method for emergency delivery by utilizing the system safety-based emergency delivery system for suspended objects is provided, comprising the following steps:

(1) After the suspension computer receives the allowable self-destruction signal sent by the aircraft computer, it enables the dangerous part cutting control module and the emergency activation control module;

(2) If the suspended object computer receives the emergency activation signal, it will stop the current operation process and start to query the dangerous part cutting signal; if the dangerous part cutting signal is established, it will directly send out the explosive failure signal and complete the dangerous part cutting; If the cutting signal is not established, read the battery voltage data of the hanging object to judge, if the battery voltage is qualified, go to step (3), otherwise, if the battery voltage is unqualified, re-judg whether the dangerous part cutting signal is established or not, if so, perform the dangerous part cutting, If it is not established, continue to read the battery voltage data of the hanging object and make a judgment;

(3) Power transfer, the power supply is powered by the aircraft and the battery is powered; after the power transfer is normal, the "ready" signal will be sent back to the aircraft, and the aircraft computer will send the decoupling signal. Explosives are disabled.

Preferably, in step (3), if the dangerous part cutting signal is received before the decoupling signal is received, the dangerous part cutting is performed.

Preferably, the method for performing the failure treatment of the explosive on the hanging object is as follows: separating the components of the explosive so as to avoid the explosion caused by mutual contact.

Preferably, the method for completing the cutting of the dangerous part is as follows: the dangerous part is separated from the hanging object by means of blasting with a pyrotechnic substance.

Compared with the prior art, the present invention has the following advantages:

(1) The system-safe hanging object emergency delivery system of the present invention provides a double guarantee for the self-destruction of the hanging object under dangerous conditions. In the event that the aircraft decoupling fails and cannot be decoupled, the pilot can turn on the "dangerous part cutting" switch in an emergency to complete the dangerous part cutting and ensure the safety of the aircraft.

(2) The present invention cuts dangerous parts in emergency situations, separates the components of explosives, avoids explosion caused by mutual contact, and avoids damage to ground facilities and personnel after emergency delivery.

(3) The present invention improves the reliability of the system by allowing the self-destruction signal to enable emergency activation and cutting of dangerous parts, and through the chain setting of the signals, to avoid single signal and false triggering.

Description of drawings

FIG. 1 is a block diagram of an emergency dropping system for suspended objects based on system safety of the present invention.

Detailed ways

The present invention realizes a system safety-based emergency dropping system and dropping method for hanging objects. Different from the traditional design method which is completely dominated by pilots, the present invention takes into account the system safety of the aircraft and the hanging objects, and is similar to the high danger of hanging objects. In the case of , this method can be used for design. The following is an explanation of the design scheme of emergency release of suspended objects based on system safety.

Level 1: It is mainly executed when the aircraft is still controllable. The emergency delivery process and logic of Level 1 are as follows:

The aircraft first sends the "allow self-destruction" command and the "emergency battery activation" command to the hanging object. After the hanging object receives and confirms the two commands at the same time, it activates the internal battery to deal with the failure of the explosive material;

The hanging object returns the "self-destruction ready" signal to the aircraft, and the corresponding "self-destruction ready" indicator light on the aircraft lights up, indicating that the "emergency release" switch can be turned on. After the pilot turns it on, the aircraft automatically launches the device to the hanging object. Issue a hook instruction to complete emergency delivery.

Level 2: It is mainly executed when the aircraft is uncontrollable. The emergency delivery process and logic of Level 2 are as follows:

The aircraft is equipped with an "emergency release" switch near the driver's seat. Once it is turned on, the aircraft will output the "Allow self-destruction" command and the "emergency battery" activation command to the suspended object, and at the same time, issue a hook-opening command to the suspended object launcher, and the suspended object will be in an emergency. put.

Level 1 emergency delivery failure disposal:

If the hanging object is not ready for self-destruction, it can perform level 2 emergency delivery;

Handling of the failure of the hook of the hanging object launcher:

The aircraft is equipped with a "dangerous part cutting" switch. When the hanging object launcher is not hooked, the "dangerous part cutting" command is sent to the hanging object after it is turned on, and the hanging object automatically executes the dangerous part cutting.

The emergency delivery system for suspended objects based on system safety includes a self-destruction control module, a dangerous part cutting control module, and an emergency activation control module;

Allow the self-destruction control module to receive the allowable self-destruction signal sent by the aircraft computer, enable the dangerous part cutting control module and the emergency activation control module, and send the allowable self-destruction signal to the hanging object computer; allow the self-destruction control module to collect through the optocoupler The allowable self-destruction signal sent by the aircraft computer controls the dangerous part cutting control module and the emergency activation control module to enable through relay K1.

After the emergency activation control module is enabled, after receiving the emergency activation signal sent by the aircraft computer, it sends the emergency activation signal to the hanging object computer. After the hanging object computer receives the allowable self-destruction signal and the emergency activation signal, it controls the hanging object to execute easy Explosives fail to deal with, and return to the aircraft computer for self-destruction ready signal; the emergency activation control module receives the emergency activation signal sent by the aircraft computer through the optocoupler acquisition module, and sends it to the suspended object computer. Performing an explosive failure treatment, for example, can separate the components of the explosive to avoid contact with each other and cause an explosion. After the emergency activation control module is enabled, the battery of the suspended object starts to supply power, the suspended object stops using the aircraft power supply, and prepares for separation.

After the dangerous part cutting control module is enabled, after receiving the dangerous part cutting signal sent by the aircraft computer, it cuts the dangerous part and controls the dangerous part to be separated from the hanging object. The dangerous part cutting control module controls the relay of the response to conduct, cutting the dangerous part, and the dangerous part is separated from the hanging object, which can be separated by blasting the pyrotechnic material.

Example

The present invention can be functionally divided into two parts, hardware and software, which work together. The specific implementation method is as follows:

1. Hardware implementation

In the event of an emergency, the normal power supply of the aircraft is cut off, and the aircraft emergency power supply is used to supply power to the suspended objects. The aircraft sends the "Allow self-destruction" command, the relay is turned on, and the signal is sent to the hanging object for optocoupler collection; then the "emergency activation" command is issued, and the signal is sent to the hanging object for optocoupler collection at the same time. At this time, the emergency power supply of the aircraft is the hanging object Power supply, execute the battery activation of the suspended object; after the battery of the suspended object supplies power steadily, after the computer in the suspended object detects the two switches of "allowed self-destruction" and "emergency activation" at the same time, it enters the emergency self-destruction program, judges that the battery voltage is qualified, and then transfers After the aircraft detects this signal, it sends out the "unhook" command, the hanging object leaves the frame, and then executes the self-destruction procedure of the hanging object; if the hanging object does not decouple normally , the aircraft sends out a "dangerous part cutting" signal. After the hanging object detects this signal, it executes the "dangerous part self-destruction" procedure on the pylon, and then cuts the dangerous part to realize the self-destruction of the hanging object in an emergency state. A schematic diagram is shown in Figure 1.

2. Software implementation

Periodic polling allows self-destruct and emergency activation signals:

1) If the self-destruction and emergency activation are allowed to be established at the same time, the current operation process is stopped, and the dangerous part cutting signal is started to be inquired;

2) If the dangerous part cutting signal is established, stop the current process, directly send out the explosive failure signal, then cut the dangerous part and detonate the pyrotechnics; Judgment, if the battery voltage is qualified, switch to battery power supply, otherwise judge whether the dangerous part cutting signal is established or not. If there is a fault, the aircraft power supply can still be used to cut the dangerous part of the hanging object through the cutting signal. If the dangerous part cutting signal is established, the dangerous part cutting procedure will complete the dangerous part cutting.

3) After the battery voltage is qualified, turn on the power transfer relay, send out the power transfer sequence, and the power supply is powered by the aircraft and transferred to the battery. After the power transfer is normal, return "Ready" to the aircraft. Waiting for the aircraft computer to send the decoupling signal, if it receives the decoupling signal, it will enter the off-frame program to control the hanging object to leave the frame; if the dangerous part cutting signal is received before the decoupling signal is received, the dangerous part cutting program will complete the dangerous part cutting.

The present invention can realize the system safety of the emergency release of the aircraft suspension system when there are dangerous devices such as explosives in the suspension, optimize the traditional emergency release design, add information interaction with the suspension, increase the safety operation of the suspension, and ensure the safety of the suspension. Aircraft - Suspension System Safety.

The above is only the best specific embodiment of the present invention, but the protection scope of the present invention is not limited to this. Substitutions should be covered within the protection scope of the present invention.

Contents that are not described in detail in the specification of the present invention belong to the well-known technology of those skilled in the art.

Claims (8)

1. a system safety-based hanging object emergency delivery system, is characterized in that, comprises allowing self-destruction control module, dangerous part cutting control module and emergency activation control module; Allow the self-destruction control module to receive the allowable self-destruction signal sent by the aircraft computer, enable the dangerous part cutting control module and the emergency activation control module, and send the allowable self-destruction signal to the hanging object computer; After the emergency activation control module is enabled, after receiving the emergency activation signal sent by the aircraft computer, it sends the emergency activation signal to the hanging object computer to enable the hanging object battery-powered explosives; After the suspension computer receives the allowable self-destruction signal and the emergency activation signal, it judges that the battery of the suspension is transferred to normal, and returns to the aircraft computer to prepare the signal for self-destruction. After receiving the decoupling signal, it controls the suspension to execute the explosives failure treatment; After the dangerous part cutting control module is enabled, after receiving the dangerous part cutting signal sent by the aircraft computer, it sends out the dangerous part cutting signal to control the dangerous part to be separated from the hanging object; The system safety-based emergency delivery system for suspended objects is characterized in that the allowable self-destruction control module collects the allowable self-destruction signal sent by the aircraft computer through the optocoupler, and controls the enabling dangerous part cutting control module and the emergency activation control module through the relay (K1). . 2 . The system safety-based emergency dropping system for hanging objects according to claim 1 , wherein the emergency activation control module receives the emergency activation signal sent by the aircraft computer through the optocoupler acquisition module, and sends it to the hanging object computer. 3 . 3 . The system safety-based emergency delivery system for suspended objects as claimed in claim 1 , wherein the method for performing the failure treatment of explosives is: separating the components of the explosives to avoid explosion caused by mutual contact. 4 . 4. The system safety-based emergency dropping system for hanging objects as claimed in claim 1, wherein the method for the dangerous part cutting control module to control the separation of the dangerous parts from the hanging objects is: controlling the conduction of the corresponding relays, cutting the dangerous parts , the use of explosives to control the separation of dangerous parts from the hanging objects. 5. a kind of utilizing the system safety-based system safety-based hanging object emergency release system to carry out emergency release method, is characterized in that, comprises the steps: (1) After the suspension computer receives the allowable self-destruction signal sent by the aircraft computer, it enables the dangerous part cutting control module and the emergency activation control module; (2) If the hanging object computer receives the emergency activation signal, it will stop the current operation process and start to query the dangerous part cutting signal; if the dangerous part cutting signal is established, cut the dangerous part directly; if the dangerous part cutting signal is not established, read the hanging object The battery voltage data is judged. If the battery voltage is qualified, go to step (3), otherwise, if the battery voltage is unqualified, re-judg whether the dangerous part cutting signal is established or not. voltage data and make judgments; (3) Carry out power transfer, and the power supply is powered by the aircraft and the battery; after the power transfer is normal, the "self-destruction ready" signal is sent back to the aircraft, and the aircraft computer sends a decoupling signal. If the decoupling signal is received, it will enter the decoupling procedure. Carry out hanging objects to perform explosives failure treatment. 6 . The method for emergency delivery according to claim 5 , wherein in step (3), if a dangerous part cutting signal is received before the decoupling signal is received, the dangerous part cutting is performed. 7 . 7 . The method for emergency delivery according to claim 6 , wherein the method for performing the failure treatment of the explosive on the hanging object is: separating the components of the explosive so as to avoid explosion caused by mutual contact. 8 . 8 . The emergency delivery method according to claim 6 , wherein the method for completing the cutting of dangerous parts is as follows: the dangerous parts are separated from the hanging objects and separated by blasting explosives. 9 .

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