CN209785554U

CN209785554U - Cabin sound monitoring device

Info

Publication number: CN209785554U
Application number: CN201920881521.0U
Authority: CN
Inventors: 李涛; 付令; 薄跃宗
Original assignee: Colorful Guizhou Airlines Co Ltd
Current assignee: Colorful Guizhou Airlines Co Ltd
Priority date: 2019-06-12
Filing date: 2019-06-12
Publication date: 2019-12-13
Anticipated expiration: 2029-06-12

Abstract

The utility model provides a cabin sound monitoring device, including set up the control panel in the cockpit and with one minute two adapters and the recording pen that control panel connects, last audio input interface and the audio output interface of being provided with of control panel, the input interface of one minute two adapters with the audio output interface is connected, one of them output interface in the one minute two adapters through an audio transfer line with the audio input jogged joint of recording pen, the audio input interface with audio output interface electric connection, the audio input interface is used for connecting audio input device to audio input device's audio signal with connecting send to the recording pen is saved. The utility model discloses can realize the conversation recording to the crew member, its noise is little, and the recording is efficient to the recording pen is with low costs, portable, can record for a long time, need not to reform transform aircraft cockpit equipment alright realize the recording effect of ideal.

Description

Cabin sound monitoring device

Technical Field

The utility model relates to an aeronautical technical field especially relates to a cabin sound monitoring device.

Background

Good flight control cabin makes wind is an important gateway for good flight safety. In order to improve the working wind of the pilot and reduce the occurrence rate of events caused by artificial reasons, the traditional mode and method are only relied on to catch the elbows, so that the flight wind in the cockpit is not effectively controlled, and the monitoring of the communication content of the pilot in the flight is an effective means.

At present, an airplane carries an onboard DVDR (Digital Versatile Disc Recordable) to record the voice of a pilot in an airplane cockpit, but the onboard DVDR can record only 2 hours, and each airplane needs 4-6 hours for downloading recorded data on average, so that the cost is high and the working efficiency is low.

SUMMERY OF THE UTILITY MODEL

In view of the above, there is a need for a low cost, efficient cabin sound monitoring device.

The utility model provides a cabin sound monitoring device, including set up the control panel in the cockpit and with one minute two adapters and the recording pen that control panel connects, last audio input interface and the audio output interface of being provided with of control panel, the input interface of one minute two adapters with the audio output interface is connected, one of them output interface in the one minute two adapters through an audio transfer line with the audio input jogged joint of recording pen, the audio input interface with audio output interface electric connection, the audio input interface is used for connecting audio input device to audio input device's audio signal with connecting send to the recording pen is saved.

Further, in the cabin sound monitoring device, a first filtering module is further arranged in the control panel, and the first filtering module is connected between the audio input interface and the audio output interface and used for filtering the audio signal received by the audio input interface.

Further, in the cabin sound monitoring device, the first filtering module includes a first resistor and an operational amplifier connected to the audio input interface, the first resistor is connected to an inverting input terminal of the operational amplifier, a first capacitor is connected in parallel between the inverting input terminal and an output terminal of the operational amplifier, a non-inverting input terminal of the operational amplifier is connected to a second resistor, and the second resistor is grounded.

Further, in the cabin sound monitoring device, an audio receiving module connected to the audio output interface is further disposed in the control panel, and the audio receiving module is configured to receive an external audio signal in a radio communication manner.

further, in the cabin sound monitoring device, a second filtering module is further connected between the audio receiving module and the audio output interface.

Further, in the cabin sound monitoring device, the second filtering module includes a third resistor connected to the audio receiving module, and a second capacitor connected in series with the third resistor, and the second capacitor is grounded.

Further, above-mentioned cabin sound monitoring device, wherein, the interface diameter of one minute two adapter is 6.5 mm.

Further, in the cabin sound monitoring device, the audio patch cord is a patch cord with a diameter of 6.5mm to 3.5 mm.

The embodiment of the utility model provides an in, need not to reform transform cabin equipment, utilize the original audio output interface connection one minute two adapters on the cabin control panel to through one of them output interface connection recording pen of audio patch cord with one minute two adapters. The recording pen directly receives the audio signal output by the audio output interface, realizes the call recording of the crew, has small noise interference and high recording efficiency, is low in cost, portable and can record for a long time, and the ideal recording effect can be realized without modifying airplane cockpit equipment.

Drawings

Fig. 1 is a schematic structural view of a cabin sound monitoring device according to a first embodiment of the present invention;

Fig. 2 is a block diagram of a cabin sound monitoring device according to a second embodiment of the present invention;

Fig. 3 is a circuit diagram of a first filtering module according to a second embodiment of the present invention;

Fig. 4 is a circuit diagram of a second filtering module according to a second embodiment of the present invention.

Description of the main elements

Detailed Description

In order to facilitate understanding of the present invention, the present invention will be described more fully hereinafter with reference to the accompanying drawings. The embodiment of the invention is given in the attached drawings. The invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, this embodiment is provided so that this disclosure will be thorough and complete.

it will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

Referring to fig. 1, a cabin sound monitoring device according to a first embodiment of the present invention is disposed in an aircraft cockpit, for example, where the cabin sound monitoring device can be installed at a third observer's position in the cabin. The cabin sound monitoring device is used for recording the conversation of the crew members in the cabin so as to facilitate recording and monitoring.

The cabin sound monitoring device comprises a control panel 10 arranged in a cockpit, and a one-to-two adapter 20 and a recording pen 30 which are connected with the control panel 10. The control panel 10 is provided with an audio input interface 11 and an audio output interface 12, the audio input interface 11 is used for connecting an audio input device, such as a microphone, etc., and the crewmember can insert an audio line of the headset into the audio input interface 11. The audio output interface 12 is used for outputting audio, and the input interface of the one-to-two adapter 20 is connected to the audio output interface 12. One of the output interfaces of the one-to-two adapter 20 is connected to the audio input hole of the recording pen 30 through an audio adapter 40, so as to transmit the audio signal output by the audio output interface 12 to the recording pen 30 for storage. The other output interface of the one-to-two adapter 20 can remain the original function, i.e., as the output of the audio signal.

During specific implementation, the type of the one-to-two adapter 20 can be set according to the type of the audio output interface 11 on the control panel 10, for example, the diameter of the audio output interface 11 of the cabin control panel in this embodiment is 6.5mm, so that the one-to-two adapter of 6.5mm can be selected.

The audio patch cord 40 is used for connection conversion between different aperture interfaces, and can be selected according to actual requirements. For example, in this embodiment, the audio input hole of the recording pen has a diameter of 3.5mm, so a 6.5mm to 3.5mm patch cord can be selected.

The audio input interface 11 is electrically connected to the audio output interface 12, and when the audio input interface is connected to an audio input device, an audio signal in the audio input device is converted from an analog signal to a digital signal and then transmitted to the recording pen 30 connected to the audio output interface through the one-to-two adapter 20 for recording.

The recording pen 30 can adopt the recording pen in the prior art, has low cost and small volume, is very convenient to replace, and can record sound for about 20 hours continuously under the condition of full power of a common recording pen, so that the requirement of cabin sound recording can be met.

In this embodiment, need not to reform transform cabin equipment, utilize original audio output interface connection one minute two adapter on the cabin control panel to through the audio patch cord with one of them output interface connection recording pen of one minute two adapter. The recording pen directly receives the audio signal output by the audio output interface, realizes the call recording of the crew, has small noise interference and high recording efficiency, is low in cost, portable and long in recording time, and can realize ideal recording effect without modifying airplane cockpit equipment.

Please refer to fig. 2, which is a block diagram of a cabin sound monitoring device in a second embodiment of the present invention, the cabin sound monitoring device in this embodiment has a structure substantially the same as the cabin sound monitoring device in the first embodiment, except that a first filtering module 50 is further disposed in the control panel, and the first filtering module 50 is connected between the audio input interface 11 and the audio output interface 12, and is configured to filter the audio signal received by the audio input interface 11, so as to filter the interference signal and improve the recording quality of the recording pen.

As shown in fig. 3, the first filtering module 50 includes a first resistor 51 and an operational amplifier 52 connected to the audio input interface 11, the first resistor 51 is connected to the inverting input terminal of the operational amplifier 52, a first capacitor 53 is connected in parallel between the inverting input terminal and the output terminal of the operational amplifier 52, the non-inverting input terminal of the operational amplifier 52 is connected to a second resistor 54, and the second resistor 54 is connected to ground.

Further, an audio receiving module 60 connected to the audio output interface 12 is disposed in the control panel 10, and the audio receiving module 60 is configured to receive an external audio signal, such as a voice signal sent by a terrestrial base station, through a radio communication manner, and send the voice information sent by the terrestrial base station to the recording pen for storage through the audio output interface and a one-to-two adapter. Compared with the first embodiment, the embodiment can also receive and store voice information sent by the terrestrial base station in addition to voice information sent by a pilot in the cabin.

A second filtering module 70 is further connected between the audio receiving module 60 and the audio output interface 12, as shown in fig. 4, the second filtering module 70 includes a third resistor 71 connected to the audio receiving module 60, and a second capacitor 72 connected in series with the third resistor 71, and the second capacitor 72 is grounded. The second filtering module 70 is configured to filter the audio signal sent by the audio receiving module 60 to the audio output interface, so as to improve the recording quality.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The above-mentioned embodiments only express the embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims

1. The utility model provides a cabin sound monitoring device, its characterized in that, including set up the control panel in the cockpit and with one minute two adapters and the recording pen that control panel connects, last audio input interface and the audio output interface of being provided with of control panel, the input interface of one minute two adapters with the audio output interface is connected, one of them output interface in one minute two adapters through an audio transfer line with the audio input hole of recording pen is connected, the audio input interface with audio output interface electric connection, the audio input interface is used for connecting audio input device to audio input device's audio signal with connecting sends to the recording pen is saved.

2. The cabin sound monitoring device according to claim 1, wherein a first filtering module is further disposed in the control panel, and the first filtering module is connected between the audio input interface and the audio output interface and is configured to filter an audio signal received by the audio input interface.

3. The cabin sound monitoring device according to claim 2, wherein the first filtering module comprises a first resistor and an operational amplifier connected with the audio input interface, the first resistor is connected to an inverting input terminal of the operational amplifier, a first capacitor is connected in parallel between the inverting input terminal and an output terminal of the operational amplifier, a non-inverting input terminal of the operational amplifier is connected to a second resistor, and the second resistor is grounded.

4. The cabin sound monitoring device according to claim 1, wherein an audio receiving module connected to the audio output interface is further disposed in the control panel, and the audio receiving module is configured to receive an external audio signal through radio communication.

5. The cabin sound monitoring device according to claim 4, wherein a second filtering module is further connected between the audio receiving module and the audio output interface.

6. the cabin sound monitoring device according to claim 5, wherein the second filtering module comprises a third resistor connected to the audio receiving module, and a second capacitor connected in series with the third resistor, the second capacitor being connected to ground.

7. The cabin sound monitoring device of claim 1, wherein the interface diameter of the one-to-two adapter is 6.5 mm.

8. The cabin sound monitoring device of claim 1, wherein the audio patch cord is a 6.5mm to 3.5mm patch cord.