KR102186317B1 - Voice intercom system - Google Patents

Abstract

The embodiment provides a voice intercom system, which includes a first intercom server, a first analog interface, a second analog interface, and a second intercom server. The first analog interface converts digital audio data from the first intercom server into an analog audio signal and inputs the signal to a second analog interface, but the analog audio signal from the second analog interface is converted into digital audio data and is input to the first intercom server. The second analog interface converts digital audio data received from the second intercom server through a public network into an analog audio signal and inputs the signal to the first analog interface, and the analog audio signal from the first analog interface is converted into digital audio data and transmitted to the second intercom server through the public network.

Description

Voice intercom system {Voice intercom system}

The present invention relates to a voice intercom system, and more particularly, to a voice intercom system for performing audio communication between a central satellite-operation center located in a first area and a regional satellite-operation center located in a second area. .

The present invention is derived from a study conducted as a part of a research project supporting research operation expenses for the Ministry of Science and ICT and the Korea Aerospace Research Institute of the National Science and Technology Research Association [Task identification number: 1711094384, Task name: Satellite mission control].

In a satellite-operated system, satellite-operators communicate with each other by means of a voice intercom system.

1 shows a typical voice intercom system in a satellite operating system.

Referring to FIG. 1, a conventional voice intercom system performs audio communication between a central satellite-operation center 11 located in a first area and a regional satellite-operation center 121 located in a second area. The first intercom server 111 is located in the central satellite-operation center 11, and the second intercom server 121 is located in the local satellite-operation center 12.

In the conventional voice intercom system as described above, the first intercom server 111 and the second intercom server 121 communicate with each other through a public network, for example, the Internet 13. Accordingly, various types of external attacks, including viruses, can affect the satellite-operation system in the central satellite-operation center 11 through the Internet 13 and the first intercom server 111, so that the satellite-operation It can violate the integrity of the system.

In order to cope with such an external attack, conventionally, an intercom for an internal call and an intercom for an external call are separated within the central satellite-operation center 11.

FIG. 2 shows that the intercom for internal calls and the intercom for external calls are separated within the central satellite-operation center 11 of FIG. 1.

Referring to FIG. 2, first intercom terminals T1a to T100a for internal calls are connected to an analog intercom switch 112 that is separate from the first intercom server 111. In addition, the second intercom terminals T1b to T100b for external calls are connected to the first intercom server 111 through the private network 112.

In this specification, an internal call means a call between satellites and operators in the center. For example, a call between satellite-operators located in the central satellite-operation center 11 is referred to as an internal call. External calls are calls between satellite-operators located in different centers. For example, a call between a satellite-operator or satellite-operators located at the central satellite-operation center 11 and a satellite-operator located at a local satellite-operation sensor (12 in FIG. 1) is referred to as an external call.

Here, the first intercom terminals T1a to T100a perform audio communication through the analog intercom switch 112.

However, the private network 112 for external calls employs a digital method to which an Internet Protocol (IP) address and Voice over Internet Protocol (VoIP) are applied. Accordingly, since the private network 112 must be connected to the public network for external calls, external attacks such as viruses or hacking affect the satellite-operating system in the central satellite-operation center 11 through the private network 113 Can be crazy.

Furthermore, satellite operators in the central satellite-operation center 11 may experience the hassle of selecting and using an internal calling terminal and an external calling terminal.

The problem of the background art is that the inventor possessed for derivation of the present invention or learned in the derivation process of the present invention, and is not necessarily known to the general public prior to filing the present invention.

Republic of Korea Patent Publication No. 10-0369981 (Applicant: Kim Joon-beom, title of invention: telephone service apparatus and method using the Internet).

Embodiments of the present invention, in a voice intercom system for performing audio communication between a central satellite-operation center and a local satellite-operation center, various types of external attacks including viruses cannot be performed on the central satellite-operating system, Accordingly, the central satellite-operation center provides a voice intercom system capable of integrating an intercom for an internal call and an intercom for an external call.

According to a first aspect of the present invention, in a voice intercom system for performing audio communication between a central satellite-operation center located in a first area and a regional satellite-operation center located in a second area, a first intercom server, a first intercom server And an analog interface, a second analog interface, and a second intercom server.

The first intercom server is located in the central satellite-operation center, and the second intercom server is located in the local satellite-operation center.

The first analog interface converts digital audio data from the first intercom server into analog audio signals and inputs them to the second analog interface, while converting the analog audio signals from the second analog interface into digital audio data. And input to the first intercom server.

The second analog interface converts digital audio data received from the second intercom server through a common network into an analog audio signal and inputs it to the first analog interface, while receiving an analog audio signal from the first analog interface. It is converted into digital audio data and transmitted to the second intercom server through the public network.

According to the voice intercom system of the embodiments of the present invention, only analog audio signals may pass between the first analog interface and the second analog interface. That is, the central satellite-operating system can be completely protected from external attacks such as viruses and hacking. Accordingly, the following effects can be obtained.

First, it can preserve the integrity of the central satellite-operating system.

Second, it is possible to integrate an intercom for an internal call and an intercom for an external call in the central satellite-operation center. That is, satellite operators in the central satellite-operation center can make both internal and external calls with a single communication terminal.

1 is a diagram showing a typical voice intercom system in a satellite operating system.
FIG. 2 shows that the intercom for internal calls and the intercom for external calls are separated within the central satellite-operation center of FIG. 1.
3 is a diagram showing a voice intercom system according to a first embodiment of the present invention.
FIG. 4 shows that intercom terminals in the central satellite-operation center of FIG. 3 are connected to a first intercom server through one private network.
5 is a diagram showing a voice intercom system according to a second embodiment of the present invention.
6 is a diagram showing a voice intercom system according to a third embodiment of the present invention.

The following description and the accompanying drawings are for understanding the operation according to the present invention, and parts that can be easily implemented by a person skilled in the art may be omitted.

In addition, the specification and drawings are not provided for the purpose of limiting the present invention, and the scope of the present invention should be determined by the claims. Terms used in this specification should be interpreted as meanings and concepts consistent with the technical idea of the present invention so that the present invention can be most appropriately expressed.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

3 shows a voice intercom system according to the first embodiment of the present invention.

3, the voice intercom system of this embodiment performs audio communication between a central satellite-operation center 31 located in a first area and a regional satellite-operation center 32 located in a second area. The voice intercom system according to the present embodiment includes a first intercom server 311, a first analog interface 312, a second analog interface 313, and a second intercom server 321.

The first intercom server 311 is located in the central satellite-operation center 31, and the second intercom server 321 is located in the local satellite-operation center 32.

The first analog interface 312 converts digital audio data from the first intercom server 311 into an analog audio signal and inputs it to the second analog interface 313, while analogue data from the second analog interface 313 The audio signal is converted into digital audio data and input to the first intercom server 311.

The second analog interface 313 converts digital audio data received from the second intercom server 321 through a public network, for example, the Internet 33, into an analog audio signal and inputs it to the first analog interface 312 Meanwhile, the analog audio signal from the first analog interface 312 is converted into digital audio data and transmitted to the second intercom server 321 through the Internet 33.

At least one first satellite-operator located in the central satellite-operation center 31 may make internal calls and external calls using the intercom terminal. The first intercom server 311 may relay and manage internal calls within the central satellite-operation center 31.

When the first satellite-operator makes an external call with the second satellite-operator in the local satellite-operation center 32, the voice of the first satellite operator is converted into digital audio data through the intercom terminal, and the first intercom server ( 311). The first intercom server 311 transmits digital audio data to the first analog interface 312 for an external call with a second satellite-operator located outside the center 31.

The first analog interface 312 converts the received digital audio data into an analog audio signal and transmits it to the second analog interface 313. The second analog interface 313 may convert the received analog audio signal back into digital audio data and transmit it to the second intercom server 321 through the Internet 33. In this case, the second analog interface 313 may have a function of transmitting digital data. According to another example, the second analog interface 313 may transmit digital audio data generated by converting an analog audio signal to the second intercom server 321 using a separate communication server.

The second intercom server 321 transmits the received digital audio data to the intercom terminal of the second satellite-operator, so that the second satellite-operator can receive the voice of the first satellite-operator.

The voice of the second satellite operator is converted into digital audio data in the intercom terminal and transmitted to the second intercom server 321, and the second intercom server 321 relays the digital audio data to the second analog interface 313. I can.

The second analog interface 313 may convert digital audio data into an analog audio signal and transmit it to the first analog interface 312. The first analog interface 312 may convert the received analog audio signal back to digital audio data and transmit it to the first intercom server 311, and the first intercom server 311 may The received digital audio data may be transmitted to the intercom terminal of the first satellite-operator as if relaying an internal call. Accordingly, the first satellite-operator can receive the voice of the second satellite-operator.

As shown in FIG. 3, all digital data transmitted from the first intercom server 311 to the outside or received from the outside to the first intercom server 311 are the first analog interface 312 and the second analog interface ( 313) must be converted into an analog audio signal. Even if the audio signal is distorted due to the addition of some noise generated in the conversion process, the first and second satellite-operators do not significantly affect the exchange of voice conversations. However, if the digital data is changed even by 1 bit, its contents may be completely different. Moreover, it may not be possible to convert itself to an audio signal unless it is data in an audio format.

Therefore, according to the voice intercom system of this embodiment, since only analog audio signals can pass between the first analog interface 312 and the second analog interface 313, various types of external attacks including viruses are -Cannot be done to the operating system. Accordingly, the following effects can be obtained.

First, it can preserve the integrity of the central satellite-operating system.

Second, it is possible to integrate an intercom for an internal call and an intercom for an external call in the central satellite-operation center 31. That is, satellite operators in the central satellite-operation center 31 can make both internal and external calls as a single call terminal.

FIG. 4 shows that intercom terminals T1 to T100 in the central satellite-operation center 31 of FIG. 3 are connected to the first intercom server 311 through one private network 314. In FIG. 4, the same reference numerals as in FIG. 3 indicate objects of the same function.

4 and 3, due to fundamental security enhancement using the first analog interface 312 and the second analog interface 313, the intercom terminals T1 to T100 in the central satellite-operation center 31 It may be connected to the first intercom server 311 through the private network 314 of.

5 shows a voice intercom system according to a second embodiment of the present invention.

Referring to FIG. 5, the voice intercom system of the second embodiment includes a central satellite-operation center 51 located in Korea, an external satellite-operation center located outside the central satellite-operation center 51 ( 52), and an overseas satellite-operation center 53 located overseas.

The voice intercom system of this embodiment includes a first intercom server 511, a first analog interface 512, a second analog interface 513, a second intercom server 521, and a third intercom server 531. . The first intercom server 511 is located in the central satellite-operation center 51, the second intercom server 521 is located in the external satellite-operation center 52, and the third intercom server 531 is located in the overseas satellite- It is located in the operation center 53.

The first analog interface 512 converts digital audio data from the first intercom server 511 into an analog audio signal and inputs it to the second analog interface 513, while the second analog interface 513 converts the digital audio data into an analog audio signal. The audio signal is converted into digital audio data and input to the first intercom server 511.

The second analog interface 513 converts digital audio data received from the second intercom server 521 or the third intercom server 531 through a public network, for example, the Internet 54 into an analog audio signal. 1 While input to the analog interface 512, the analog audio signal from the first analog interface 512 is converted into digital audio data, and the second intercom server 521 or the third intercom server 531 is converted through the Internet 54. ).

According to the voice intercom system of this embodiment, only analog audio signals may be passed between the first analog interface 512 and the second analog interface 513. That is, many types of external attacks, including viruses, cannot be carried out on the central satellite-operating system. Accordingly, the following effects can be obtained.

First, it can preserve the integrity of the central satellite-operating system.

Second, in the central satellite-operation center 51, it is possible to integrate an intercom for internal calls and an intercom for external calls. That is, satellite operators in the central satellite-operation center 51 can make both internal and external calls as a single call terminal.

6 shows a voice intercom system according to a third embodiment of the present invention. In the case of the voice intercom system of this embodiment, intercom terminals in the central satellite-operation center 61 are connected to the first intercom server 611 through a private network (see FIG. 4), and the external satellite-operation center 62 Intercom terminals are connected to the second intercom server 621 through a private network, and intercom terminals in the overseas satellite-operation center 63 are connected to the third intercom server 631 through a private network.

The operation of the first analog interface 612 and the second analog interface 613 is the same as that of the first analog interface 612 and the second analog interface 613 of FIG. 5.

In the case of this embodiment, a third analog interface 622 and a fourth analog interface 623 located in the external satellite-operation center 52 are further included. In addition, it further includes a fifth analog interface 632 and a sixth analog interface 633 located in the overseas satellite-operation center 63.

The third analog interface 622 converts digital audio data from the second intercom server 621 into an analog audio signal and inputs it to the fourth analog interface 623, while an analog signal from the fourth analog interface 623 The audio signal is converted into digital audio data and input to the second intercom server 621.

The fourth analog interface 623 converts digital audio data received from the first intercom server 611 or the third intercom server 631 through a public network, for example, the Internet 64 into an analog audio signal. 3 While input to the analog interface 622, the analog audio signal from the third analog interface 622 is converted into digital audio data, and the first intercom server 611 or the third intercom server 631 is converted through the Internet 64. ).

Accordingly, only analog audio signals may pass between the third analog interface 622 and the fourth analog interface 623. That is, various types of external attacks, including viruses, cannot be carried out on local satellite-operated systems.

The fifth analog interface 632 converts digital audio data from the third intercom server 631 into an analog audio signal and inputs it to the sixth analog interface 633, while analogue from the sixth analog interface 633 The audio signal is converted into digital audio data and input to the third intercom server 631.

The sixth analog interface 633 converts digital audio data received from the first intercom server 611 or the second intercom server 621 through a public network, for example, the Internet 64 into an analog audio signal. 5 While input to the analog interface 632, the analog audio signal from the fifth analog interface 632 is converted into digital audio data, and the first intercom server 611 or the second intercom server 621 through the Internet 64. ).

Accordingly, only analog audio signals may pass between the fifth analog interface 632 and the sixth analog interface 633. That is, various types of external attacks, including viruses, cannot be carried out on overseas satellite-operated systems.

As described above, according to the voice intercom system of the present embodiments, only analog audio signals may pass between the first analog interface and the second analog interface. That is, many types of external attacks, including viruses, cannot be carried out on the central satellite-operating system. Accordingly, the following effects can be obtained.

First, it can preserve the integrity of the central satellite-operating system.

Second, it is possible to integrate an intercom for internal calls and an intercom for external calls in the central satellite-operation center. That is, satellite operators in the central satellite-operation center can make both internal and external calls with a single communication terminal.

Additionally, only analog audio signals can be passed between the third analog interface and the fourth analog interface. That is, various types of external attacks, including viruses, cannot be carried out on local satellite-operated systems.

Similarly, only analog audio signals can be passed between the fifth analog interface and the sixth analog interface. That is, various types of external attacks, including viruses, cannot be carried out on overseas satellite-operated systems.

So far, we have looked at the center of the preferred embodiment for the present invention. Those of ordinary skill in the art to which the present invention pertains will understand that the present invention can be implemented in a modified form without departing from the essential characteristics of the present invention.

Therefore, the disclosed embodiment should be considered from an illustrative point of view, not a limiting point of view. The scope of the present invention is shown in the claims rather than the above description, and the invention claimed by the claims and the inventions equivalent to the claimed invention should be construed as being included in the invention.

The voice intercom system of the present invention may be used not only for satellite-operating systems but also for other systems.

11: central satellite-operation center, 111: first intercom server,
12: regional satellite-operation center, 121: second intercom server,
13: Internet, 112: analog intercom exchanger,
113: private network,
T1a to T100a: first intercom terminals,
T1b to T100b: second intercom terminals,
31: central satellite-operation center, 311: first intercom server,
312: a first analog interface, 313: a second analog interface,
32: regional satellite-operation center, 321: second intercom server,
33: Internet, 314: private network,
T1 to T100: intercom terminals, 51: central satellite-operation center,
511: first intercom server, 512: first analog interface,
513: second analog interface, 52: external satellite-operation center,
521: second intercom server, 53: overseas satellite-operation center,
531: second intercom server, 54: Internet,
61: central satellite-operation center, 611: first intercom server,
612: first analog interface, 613: second analog interface,
62: external satellite-operation center, 621: second intercom server,
622: a third analog interface, 623: a fourth analog interface,
63: overseas satellite-operation center, 631: third intercom server,
632: a fifth analog interface, 633: a sixth analog interface,
64: Internet.

Claims (6)

In the voice intercom system for performing audio communication between a central satellite-operation center located in a first area and a regional satellite-operation center located in a second area,
Including a first intercom server, a first analog interface, a second analog interface, and a second intercom server,
The first intercom server is located in the central satellite-operation center,
The second intercom server is located in the local satellite-operation center,
The first analog interface converts digital audio data from the first intercom server into analog audio signals and inputs them to the second analog interface, while converting the analog audio signals from the second analog interface into digital audio data. And input to the first intercom server,
The second analog interface converts digital audio data received from the second intercom server through a common network into an analog audio signal and inputs it to the first analog interface, while receiving an analog audio signal from the first analog interface. A voice intercom system for converting digital audio data and transmitting it to the second intercom server through the public network. The method according to claim 1,
The voice intercom system, wherein intercom terminals in the central satellite-operation center are connected to the first intercom server through a private network. A voice intercom system that performs audio communication between a central satellite-operation center located in Korea, an external satellite-operation center located in the domestic but outside the central satellite-operation center, and an overseas satellite-operation center located abroad In,
A first intercom server, a first analog interface, a second analog interface, a second intercom server, and a third intercom server,
The first intercom server is located in the central satellite-operation center,
The second intercom server is located in the external satellite-operation center,
The third intercom server is located in the overseas satellite-operation center,
The first analog interface converts digital audio data from the first intercom server into analog audio signals and inputs them to the second analog interface, while converting the analog audio signals from the second analog interface into digital audio data. And input to the first intercom server,
The second analog interface converts digital audio data received from the second intercom server or the third intercom server through a public network into an analog audio signal and inputs it to the first analog interface, while the first analog interface A voice intercom system for converting an analog audio signal from an analog audio signal into digital audio data and transmitting it to the second intercom server or the third intercom server through the public network. The method of claim 3,
Intercom terminals in the central satellite-operation center are connected to the first intercom server through a private network,
Intercom terminals in the external satellite-operation center are connected to the second intercom server through a private network,
The voice intercom system, wherein intercom terminals in the overseas satellite-operation center are connected to the third intercom server through a private network. The method of claim 4, further comprising a third analog interface and a fourth analog interface located in the external satellite-operation center,
The third analog interface converts digital audio data from the second intercom server into analog audio signals and inputs them to the fourth analog interface, while converting the analog audio signals from the fourth analog interface into digital audio data. And inputs it to the second intercom server,
The fourth analog interface converts digital audio data received from the first intercom server or the third intercom server through a public network into an analog audio signal and inputs it to the third analog interface, while the third analog interface A voice intercom system for converting an analog audio signal from an analog audio signal into digital audio data and transmitting it to the first intercom server or the third intercom server through the public network. The method of claim 5, further comprising a fifth analog interface and a sixth analog interface located in the overseas satellite-operation center,
The fifth analog interface converts digital audio data from the third intercom server into analog audio signals and inputs them to the sixth analog interface, while converting analog audio signals from the sixth analog interface into digital audio data. And inputs it to the third intercom server,
The sixth analog interface converts digital audio data received from the first intercom server or the second intercom server through a public network into an analog audio signal and inputs it to the fifth analog interface, while the fifth analog interface A voice intercom system for converting an analog audio signal from an analog audio signal into digital audio data and transmitting it to the first intercom server or the second intercom server through the public network.

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