RU196546U1 - TELECOMMUNICATIONS COMMUNICATION DEVICE FOR AIRCRAFT CREW - Google Patents

Abstract

The utility model relates to radio communication systems and can be used in communication systems between the airport ground services and the crew of an aircraft. The communication device for ground personnel with the crew of the aircraft contains a switch with a receive-transmit button, a connection switch, and a wireless communication unit with the crew. The switched outputs of the switch “transmit-receive” button are connected to the corresponding connector for connecting a headset, and its switching outputs are combined with the corresponding switching outputs of the connection switch, the switched outputs of which are connected to the wireless node with the crew and with the connector for connecting a portable radio station, respectively. The technical result is to increase the manufacturability of use, as well as improving the quality and ease of communication of ground personnel with the dispatcher during a communication session with the crew. 1 s.p. f-ly, 4 ill.

Description

Technical field

The utility model relates to radio communication systems and can be used in communication systems between the airport ground services and the crew of an aircraft.

State of the art

The closest in technical essence - the prototype is an electronic communication device for the aircraft, designed to provide communication between the crew of the aircraft and ground personnel responsible for signaling / inspection during operations with the aircraft made at the airport, which is integrated into a radio communication system controlled by a central electronic data processing unit that determines the transmission channel, power and frequency of the radio communication system, while ground personnel tvlyaet communication by the portable transceiver, the portable transceiver is connected to a microphone and headphones corresponding (cm. RU 2006 138 893 A).

A disadvantage of the known solution is the inconvenience of the ground personnel, who are forced to use several devices simultaneously to communicate with the crew and the dispatcher. So, during the pre-flight inspection, the issuing person in communication with the crew, using a wired or wireless communication system, uses a microphone and headphones. However, if necessary, to contact the dispatcher, he needs to use the appropriate radio station, which, in conditions of intense noise from a working aircraft engine, is difficult and reduces the quality of communication of ground personnel with the dispatcher during a communication session with the crew.

Moreover, if it is necessary to hear ambient sounds, for example, commands transmitted via speakerphone or in direct communication with other persons from ground personnel, it is necessary to remove at least one of the headphones since the design of the headphones, as a rule, contains noise-isolating elements of a passive noise reduction system. The need to remove and then put on the headphones worsens the manufacturability of aircraft maintenance and reduces the willingness of personnel to perform assigned tasks and the safety of using a known solution.

The need to perform additional operations and the associated delay in the transition from one type of communication to another reduces the manufacturability of using a known device, makes its use inconvenient and limits its functionality.

Utility Model Disclosure

The technical result is to increase the manufacturability of use, as well as improving the convenience of communication between ground personnel and the dispatcher during a communication session with the crew.

The indicated result is achieved by the fact that in the communication device of the ground personnel with the crew of the aircraft, containing a switch with a receive-transfer button, a connection switch and a wireless communication node with the crew, the switched outputs of the receive-transmit button of the switch are connected to the corresponding connector the headset, and its switching terminals are combined with the corresponding switching terminals of the connection switch, the switching terminals of which are connected to the wireless node with the crew and connector for connecting a portable radio station, respectively.

In addition: - the switch is configured to fasten to the user's belt.

Brief Description of the Drawings

The communication device of the ground personnel with the crew of the aircraft is explained using the drawings, where in FIG. 1 shows a block diagram of a device. in FIG. 2 is a general view of the headset. FIG. 3 is a front view of the switch; FIG. 4 is a rear view of the switch.

The following notation is made in the drawing.

1 - wireless communication node with the crew, 2 - portable radio station for communication with the dispatcher, 3 - switch, 4 - receive-transmit button, 5 - connection switch, 6 - headset, 7 - audio channel node, 8 - external microphone of the node sound channel, 9 - amplifier of the sound channel node, 10 - node of suppressing threshold noise, 11 - speaker of the channel of sound channel, 13 - node of noise reduction, 14 - internal microphone of the node of noise reduction, 15 - amplifier of the noise reduction node, 16 - signal adder, 17 - speaker headphone, 18 - remote communication microphone for speech about interaction via the radio channel, 19 — headphone cup, 20 — headband, 21 — sockets for connectors connecting the switch to the headset, with a radio station for communication with the dispatcher and from the antenna of the wireless node with the crew, 22 — signal gain control from the output of the transceiver, 23 - clip for attaching the switch to a belt, 24 - antenna of the wireless communication unit with the crew, 25 - wireless communication module with the crew of the aircraft, 26 - aircraft, 27- dispatcher transceiver, 28 - dispatcher post.

The communication device for ground personnel and the crew of the aircraft includes a headset containing two headphones fixed to the headband, a remote communication microphone for voice communication over the air and a switch. The switch is a device worn by maintenance personnel, which, in turn, contains a wireless communication unit with the crew, a built-in transmit-receive button, and a connection switch with a corresponding control lever for emergency messaging through a portable radio station to the dispatch service. The connection switch provides connection to the headset of either a communication center with the crew or a radio communication station with a dispatcher. In this case, the remote microphone and the second input of the adder are connected via a switch “transmit-receive” button and a connection switch with a wireless node with the crew of the switch and a connector for connecting a radio station for communication with the dispatcher.

The headset also contains an internal microphone of the noise canceling unit connected to the input of the corresponding amplifier, the output of which is connected to the speaker of the corresponding headphone headset through the corresponding signal adder or to a separate speaker of the noise canceling unit. Noise canceling unit refers to active noise canceling systems, and the noise canceling unit amplifier is inverting, providing the formation of compensation signals for sound vibrations penetrating from the outside into the earphone cup. The other input of the signal adder, or the input of the earpiece speaker, if there is a separate speaker for the noise canceling unit, is connected via the switch’s receive-transfer button and the switch’s connection switch, as well as the corresponding connector, depending on the position of the connection switch lever, or with the output of the wireless node communication, or through a connector with the output of a portable radio station.

The headset also contains an external microphone of the audio channel unit for listening to external sounds, connected through an amplifier of the audio channel unit to the speaker of the audio channel unit of the corresponding headphone headset.

The switch is made with the possibility of fastening to the user's belt and contains a “transmit-receive” button, a connection switch lever for connecting the headset to the crew of the aircraft, or to a radio communication station with the dispatcher, as well as the wireless communication unit with the crew. At the same time, the switched switch leads are connected to the wireless communication unit with the crew and with a connector for connecting a portable radio station, respectively.

The switch is equipped with connectors for connecting with a headset, an antenna of the communication center with the crew and with a portable radio station.

The headset contains two earphones mounted on the headband, each of which contains an internal microphone installed inside the earphone cup, a noise canceling unit microphone with a corresponding speaker, and an external microphone installed on the outside of the headphone with a sound channel unit with a corresponding speaker.

The node suppressing threshold noise in the path of the node of the sound channel provides the suppression of a sharp or pulsed increase in noise in the node of the sound channel and is based on automatic gain control.

Utility Model Implementation

The communication device of ground personnel with the crew of the aircraft is used as follows.

When releasing an aircraft, the issuing user, who is the device’s user, installs a communication module with the crew in the connector on the aircraft’s hull, which, together with the wireless communication unit and the crew of the switch, provides wireless communication with the aircraft’s crew with a range of up to 100 m at a frequency of 2.4 GHz. During release work, interaction between the crew of the aircraft and the issuing person is carried out through the exchange of messages over the air and visually. The switch is mounted on the user's belt and is connected via cable to the user's headset. Acting on the “receive-transmit” button of the switch, the user either receives messages or transmits his voice messages generated using the headset.

If it becomes necessary to communicate with the dispatcher, the user, acting on the switch connection switch, connects the headset to a portable radio station to communicate with the dispatcher transceiver, which is part of the dispatcher's post equipment. Switching the modes of receiving / transmitting messages with the dispatcher is also carried out using the switch button "receive-transmit". At the end of the communication session with the dispatcher, switching the lever of the switch for connecting the switch resumes radio communication with the crew.

The presence of a switch having a connection switch and a receive-transfer button, made in one housing with the ability to control with one hand of the user, provides technological use and ease of communication between ground personnel and the dispatcher during a communication session with the crew.

The implementation of the switch with the possibility of fastening on the user's belt provides the convenience of influencing the control elements of the switch and increases the ergonomics of the device.

Since the release of the aircraft involves, inter alia, pre-flight inspection, monitoring of engine start-up and towing of the aircraft from the parking place to the place of engine start-up and this work is accompanied by intense noise from an operating aircraft engine, a deep isolation of the user from ambient noise is required for unimpeded communication over the air with the crew and the dispatcher, as well as to protect his hearing. In addition to passive means, such as the use of closed-type headphones, the sound insulation problem is also solved using the active noise canceling unit, which uses an internal microphone built into the earphone, connected via the inverting amplifier to the earpiece speaker or to a separate speaker of the noise canceling unit. The signals from the output of the internal microphone, amplified and inverted by the amplifier, are mixed on the signal adder with a useful user communication signal, so that when playing in the headphone, the signals received using the internal microphones, combined with the ambient sounds attenuated by the ear cushion, weaken each other, providing noise compensation . In this case, the signals from the outputs of the transceivers operating at that time are reproduced in the headphones without attenuation. The presence of a noise reduction unit ensures high quality communication of ground personnel with both the dispatcher and the crew.

At the same time, the user has the opportunity to receive sound information directly from the sources surrounding him. This is necessary to receive commands transmitted via the speakerphone of the airport or voice messages of other airport employees. To realize the ability to listen to ambient sounds, an audio channel assembly is used, including an external microphone connected through a suitable amplifier to the speaker of the audio channel assembly of the headphone. The headset can be connected either to the communication center with the crew, or to a radio communication station with the dispatcher.

The presence of a threshold noise suppression unit based on automatic gain control provides improved perception quality and intelligibility while protecting the user's hearing. In the presence of a sharp increase in noise, automatic gain control with a time constant of about 300 ms resets the gain in the audio channel, leaving the volume level at an acceptable level.

The ability to listen to ambient sound sources during a user's wireless connection with the crew or the dispatcher provides the user with greater information when solving tasks, which reduces the likelihood of the user making the wrong decision and ultimately increases the safety of work.

The use of an additional - sound communication channel during user communication with the crew or the dispatcher provides the ability to obtain information from a wider range of information sources and extends the functionality of the device

The ability to obtain audio information without having to remove the headphones, provided by the joint operation of the audio channel node and the radio communication channels, increases the user experience and manufacturability of the device, as well as improves the efficiency and quality of the user's audio connection with the sources of surrounding sounds.

If necessary, focus only on messages transmitted over the air, the user disconnects the audio channel node, which can be disabled, for example, using the power off button of the specified node.

After receiving from the crew a report on the normal operation of the aircraft systems, the issuing person disconnects the communication module with the crew from the aircraft body, disabling wireless communications and limiting visual communication with the crew in front and side of the aircraft.

The communication device of ground personnel with the crew of the aircraft can be performed using standard materials and standard electronic components.

Thus, the communication device of ground personnel with the crew of the aircraft provides high adaptability, and is more convenient when communicating with ground personnel with the dispatcher during a communication session with the crew.

Claims (2)

1. The communication device of ground personnel with the crew of the aircraft, characterized in that it contains a switch with a receive-transmit button, a connection switch and a wireless node with the crew, while the switched outputs of the receive-transmit button of the switch are connected to the corresponding connector for connecting a headset, and its switching terminals are combined with the corresponding switching terminals of the connection switch, the switching terminals of which are connected to the wireless node with the crew and with the connector Mom for connecting a portable radio station, respectively. 2. The communication device of ground personnel with the crew of the aircraft according to claim 1, characterized in that the switch is made with the possibility of fastening to the user's belt.

Images