RU2415781C1 - Black box with signalling system - Google Patents

Abstract

FIELD: transport.

SUBSTANCE: invention relates to aircraft engineering. Proposed black box is para dropped in the case of aircraft accident to emit electromagnetic waves and sound signals. Said black box comprises rubber chamber to be inflated by compressed air forced from compressed air chamber with parachute released.

EFFECT: locating black box quickly, reduced possibility of major damage.

7 dwg

Description

The invention relates to the field of aviation and is used to search for a “black box” during an airplane crash; in this case, together with the plane, the “black box” falls to the ground, and when it hits the ground, its components fail, which are sometimes very difficult to recover, and if the plane crashes over the sea, then the “black box” »Falls with the plane into the sea, which without appropriate signaling cannot be found in the depths of the sea.

This happened during the crash of the A-330 aircraft over the sea. They began to look for the "black box" to the touch, since it did not emit any signals for the search, and for this reason it has not yet been found. The well-known patent СN 1600642 A describes how the joint fall of the “black box” with the plane during its crash is excluded, and this is achieved by the fact that during the crash of the aircraft the “black box” is separated from it and descends by parachute down to the ground or to the surface of the sea . This method of launching the “black box” by parachute has the disadvantage that the “black box” during a plane crash is dropped immediately with the parachute open from the plane, regardless of its altitude. In this case, when blowing the wind, the “black box” with a parachute will be carried to a considerable distance from the crash site, especially at the maximum flight altitude of the aircraft, and this will significantly increase the search time for the “black box”.

The aim of the present invention is to eliminate all the disadvantages that exist when searching for a "black box", and to make the search for a "black box" more rational.

This goal is achieved by the fact that the “black box” placed in the tail section of the aircraft in the event of a plane crash with a parachute is automatically thrown out of the compartment, and during descent it opens at a predetermined height from the ground or from the sea surface. After that, the "black box" begins to emit electromagnetic waves in space, and if it gets into the depths of the sea, then it will also begin to emit sound waves.

When the parachute is opened at a minimum distance from the ground or from the sea surface, it will be carried away from the gust of wind by a small distance from the plane crash site. Using these signals, the location of the “black box” will be determined using appropriate search devices for this.

Figure 1 shows an airplane with a compartment mounted therein.

Figure 2 shows the "black box" 2 with its components, which includes: a block of sound generators and electromagnetic waves 5; power supply unit 6, switch lever 7; compressed air chamber 8; a rubber chamber 9, like a torus; parachute 11; flexible antenna 12, niche 13; sound emitter 14; cable 15; connector 16.

The components are interlocked / not shown /.

Figure 3 - "black box" with the parachute open.

Figure 4 is a schematic structural diagram for the ejection of the "black box" from the compartment of the aircraft.

Figure 5 - socket with a plug.

Figure 6 - rubber chamber.

For control with the "black box" the following elements and parts are used: 17 / cm airplane engine. figure 4 /; sound sensor 18, such as a telephone; an electric signal amplifier 19; electrical relays 20 and 21; fuse 22; an electric current switch 23; power supply unit 24; electrical wires 25, 26, 27. All wires 35 / cm. 5 /, going to the tail of the aircraft 1, are connected through connector 16 to a “black box” 2 located in compartment 3, and when the “black box” comes out of the compartment, the plug 28 is disconnected from the outlet 29 located in the compartment 3 / cm . figure 5 /.

To take off the plane 1, the flight crew located in the cockpit 4 turns on the switch 23, and electric current begins to flow from the power supply unit 24 via wire 25 to the aircraft engine 17, the engine starts to work, and from its created noise in the sound sensor 18, mounted on the motor 17, an alternating electric current arises, which is fed through a wire 26 to the input of an electric amplifier 19, from where from its output an amplified and converted alternating electric current to a direct current is fed through a wire 27 to the windings of the relays 20 and 21. The relays operate once New time the relay 20 is activated earlier and with its contact 20 'opens the circuit of the igniter 22; after that, after some time, the relay 21 is activated and prepares the fuse circuit with its contact 21 '. The open fuse circuit with contact 20' will be held until the motor 17 is running, and the relay 20 will be under electric current.

After landing, the engine 17 stops working when the switch 23 is turned off, and in this case, all the devices of the "black box" come to their original position.

When an airplane crashes, its engine 17 stops working and after that the engine noise stops, and the sound sensor 18 will no longer receive electric current and will no longer be supplied to the input of amplifier 19, this relay 20 will be de-energized and its contact 20 will close the fuse circuit 22 / due to the fact that the relay 21 is delayed, therefore, its contacts 21 remain closed /, it is activated by the electric current received from block 24 through the contacts of the switch 23 and throws a black box out of compartment 3 with its components, and Vaeth cellophane film 34 whose entrance is closed compartment 3 that prevents ingress of any objects outside the compartment / cm. figure 1 /.

At this time, the switch lever 7, mounted on the power supply unit 6 of the black box, is released from compartment 3 and switches the “black box” from the power supply unit 24 of the aircraft to the power supply unit 6 of the “black box” 2. Discarded “black box” from the compartment 3 continues to fall down with the sound emitter 14 released from the niche 13, which is held by the cable cable 15 behind the “black box” and additionally acts as a guide.

When the "black box" reaches a certain height from the ground or from the surface of the sea, the parachute 11 automatically opens, the antenna 12 from this takes a vertical position / cm. figure 3 / and begins to emit electromagnetic waves even when the "black box" is on the ground. Searchers in this case, armed with a direction finder, begin to search for it. When the parachute is opened, it still fires through one line 30, mounted on the handle 31 of the crane 32, and when pulling the handle of the line during the opening of the parachute, the crane 32 opens and through the air duct 33 from the compressed air chamber 8 the air will enter the rubber chamber 9 / cm. Fig.6 /. The camera will inflate and turn into shock absorbers-cushions when the black box lands on the ground, and when brought to sea, the rubber chamber will serve as a float for the black box and will keep it afloat.

When the sound emitter 14 is in an aqueous medium, its electric circuit is connected via a cable 15 to the sound generator located in block 5, through contacts 36 separated by a piece of sugar 37 mounted on the sound emitter 14. After some time, sugar 37 dissolves in sea water, and thanks to this, contacts 36 are closed, and after that the sound emitter 14 will be connected via a cable to the sound generator unit 5 and will begin to produce intermittent sound signals at a frequency of 1000 Hz in the deep sea as the best way m perceived by the human auditory organ.

In such an environment, the search for the "black box" is carried out both by electromagnetic waves using a direction finder, and direction finding hydrophones operating in the deep sea. This "black box" on the device is autonomous, and it can be used on any aircraft for its operation.

Claims (1)

A “black box” with an alarm system that is thrown out of the compartment with a parachute in a parachute and lands or lands on the sea surface, emitting electromagnetic waves and sound signals, characterized in that the “black box” is placed in the tail section of the aircraft and is thrown away automatically, and during the opening of the parachute the crane opens and through the air ducts from the compressed air chamber air enters the rubber chamber, which is inflated and turns into a shock absorber-pillow, emitted "Black box", electromagnetic wave and acoustic signals are radiated also on the depth.

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