KR20170078281A - Emergency wireless communication system and method - Google Patents

Emergency wireless communication system and method Download PDF

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Publication number
KR20170078281A
KR20170078281A KR1020150188641A KR20150188641A KR20170078281A KR 20170078281 A KR20170078281 A KR 20170078281A KR 1020150188641 A KR1020150188641 A KR 1020150188641A KR 20150188641 A KR20150188641 A KR 20150188641A KR 20170078281 A KR20170078281 A KR 20170078281A
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South Korea
Prior art keywords
emergency
transceiver
communication network
terminal
mobile terminal
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KR1020150188641A
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Korean (ko)
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KR101782229B1 (en
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김성호
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한국공항공사
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/06—Selective distribution of broadcast services, e.g. multimedia broadcast multicast service [MBMS]; Services to user groups; One-way selective calling services
    • H04W4/10—Push-to-Talk [PTT] or Push-On-Call services
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W84/00—Network topologies
    • H04W84/02—Hierarchically pre-organised networks, e.g. paging networks, cellular networks, WLAN [Wireless Local Area Network] or WLL [Wireless Local Loop]
    • H04W84/04—Large scale networks; Deep hierarchical networks
    • H04W84/08—Trunked mobile radio systems
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
    • H04W88/02—Terminal devices
    • H04W88/04—Terminal devices adapted for relaying to or from another terminal or user

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Multimedia (AREA)
  • Telephonic Communication Services (AREA)
  • Alarm Systems (AREA)

Abstract

To an emergency wireless communication system and method. The emergency radio communication system includes a remote control device inserted in an external connection jack of a communication terminal and configured to establish a first emergency communication network between the communication terminal and a mobile terminal located at a remote location, And a transceiver apparatus for establishing a second emergency communication network between the terminal and the transceiver, wherein the transceiver apparatus connects the communication terminal and the transceiver through the first emergency communication network and the second emergency communication network.

Description

[0001] EMERGENCY WIRELESS COMMUNICATION SYSTEM AND METHOD [0002]

An emergency communication network is established between a communication terminal and a mobile terminal located at a remote location using a remote control device physically inserted into a communication terminal, and the communication terminal and the transceiver And the like.

The radio communication between the first transceiver and the second transceiver located at a remote location beyond the propagation distance of the first transceiver can be performed by a wire relay system. At this time, the first transceiver transmits a PTT (Push To Talk) signal to the second transceiver to transmit the PTT (Push To Talk) signal for transmitting the transmission voice to the transmitter, and the voice signal to the second transceiver do.

Therefore, in a wireless communication system supporting communication between radios based on a wired repeating system, it is inevitable to install a dedicated line, so that time and cost for installation of a dedicated line are considerably consumed and it is difficult to construct a wireless communication network in an emergency.

A first emergency communication network is established between a communication terminal (for example, a landline telephone, a mobile phone, etc.) and a mobile terminal (for example, a mobile phone) located at a remote place using a remote control device, A second emergency communication network is established between the terminal and the radio and the communication between the communication terminal and the radio can be performed quickly by connecting the communication terminal and the radio via the first and second emergency communication networks.

An emergency radio communication system for achieving the above object is provided with a remote control device inserted in an external connection jack of a communication terminal and establishing a first emergency communication network between the communication terminal and a mobile terminal located at a remote location, And a transceiver device inserted in the first emergency communication network and the second emergency communication network to establish a second emergency communication network between the mobile terminal and the transceiver, the transceiver device being capable of establishing a connection between the communication terminal and the transceiver via the first emergency communication network and the second emergency communication network Connect.

As a technical method for achieving the above object, an emergency wireless communication method is a remote control device inserted in an external connection jack of a communication terminal, wherein a first emergency communication network is established between the communication terminal and a mobile terminal located at a remote place The method of claim 1, further comprising the steps of: establishing a second emergency communication network between the mobile terminal and the radio, inserted in an external connection jack of the mobile terminal, in the radio device; and in the radio communication device, And connecting between the communication terminal and the transceiver through the base station.

According to an embodiment of the present invention, a first emergency communication network is established between a communication terminal (e.g., a landline telephone, a mobile phone, etc.) and a mobile terminal Establishing a second emergency communication network between the mobile terminal and the transceiver and connecting the communication terminal and the transceiver through the first and second emergency communication networks so that communication between the communication terminal and the transceiver can be performed quickly do.

Thus, the present invention eliminates the need to install a dedicated line for communication between a communication terminal and a transceiver having a considerable separation distance, thereby reducing cost and time for installing a dedicated line. In addition, the present invention facilitates extension of communication between a communication terminal and a radio located in a remote location, in cooperation with an existing terminal (e.g., a communication terminal, a mobile terminal) by utilizing a communication infrastructure of an existing terminal.

1 is a diagram illustrating a configuration of an emergency wireless communication system according to an embodiment of the present invention.
2 is a diagram illustrating an example of a system configuration in a case where a communication terminal in an emergency wireless communication system according to an embodiment of the present invention is a wired telephone.
3 is a diagram illustrating an example of a system configuration when a communication terminal in an emergency wireless communication system according to an embodiment of the present invention is a cellular phone.
4 is a diagram illustrating a configuration of a remote control device in an emergency wireless communication system according to an embodiment of the present invention.
5 is a diagram illustrating an example of an interface configuration of a telephone remote control device in an emergency wireless communication system according to an embodiment of the present invention.
6 is a diagram illustrating an example of an interface configuration of a remote control device for a mobile phone in an emergency wireless communication system according to an embodiment of the present invention.
FIG. 7 is a diagram illustrating a configuration of a radio apparatus in an emergency radio communication system according to an embodiment of the present invention.
8 is a flowchart illustrating an emergency wireless communication method according to an embodiment of the present invention.

Hereinafter, embodiments according to the present invention will be described in detail with reference to the accompanying drawings. However, the present invention is not limited to or limited by the embodiments. Like reference symbols in the drawings denote like elements.

1 is a diagram illustrating a configuration of an emergency wireless communication system according to an embodiment of the present invention.

1, an emergency wireless communication system 100 according to an embodiment of the present invention includes a communication terminal 101, a remote control device 103, a mobile terminal 105, a radio device 107, and a radio 109 ).

The communication terminal 101 may be, for example, a wired telephone or a cellular phone, and may communicate with the mobile terminal 105 through a base station. The communication terminal 101 may include an external connection jack and may be connected to the mobile terminal 105 via the first emergency communication network under the control of the remote control device 103 when the remote control device 103 is inserted into the external connection jack. Communication can be performed.

The remote control apparatus 103 can be inserted into the external connection jack of the communication terminal 101 to establish a first emergency communication network between the communication terminal 101 and the mobile terminal 105 located at a remote location.

The remote control apparatus 103 can receive a push to talk (PTT) command while the communication between the communication terminal 101 and the mobile terminal 105 is in progress. At this time, while the push-to-talk command is inputted, the remote control device 103 connects the transmitter in the remote control device 103 to the first emergency communication network, while the push-to-talk command is not input, The receiver in the apparatus 103 can be connected to the first emergency communication network. That is, when the remote control apparatus 103 is in the transmission mode for transmitting a signal input from the user to the mobile terminal 105, the remote control apparatus 103 connects the transmission section to the first emergency communication network and transmits a signal from the mobile terminal 105 located at the remote location When the receiving mode is the receiving mode, the receiving unit can be connected to the first emergency communication network. At this time, the remote control device 103 outputs a notification of the transmission mode or the reception mode so that it can confirm whether the signal is in a sending state or a receiving state.

Specifically, the remote control device 103 can generate a PTT signal when a push-to-talk command is input while a communication is established between the communication terminal 101 and the mobile terminal 105. [

The remote control device 103 can generate a transmission signal including the generated PTT signal and a radio signal directed to the radio input through the microphone (MIC), a voice signal input from the user and transmitted to the transceiver 109 have. The transmission signal may be transmitted to the mobile terminal 105 via the first emergency communication network.

The remote control device 103 may include an interface unit connected to an external connection jack of the communication terminal 101. Here, the interface unit may include, for example, a first interface terminal inserted into the external connection jack of the wire telephone and a second interface terminal inserted into the external connection jack of the cellular phone.

The mobile terminal 105 may be a cellular phone, for example, and may communicate with the communication terminal 101 or the remote control device 103 via the first emergency communication network. The mobile terminal 105 can also include an external connection jack and can communicate with the transceiver 109 via the second emergency communication network under the control of the transceiver 107 when the transceiver 107 is inserted into the external connection jack, can do.

The radio device 107 is inserted into an external connection jack of the mobile terminal 105 to establish a second emergency communication network between the mobile terminal 105 and the radio 109 and to transmit the first emergency communication network and the second emergency communication network The communication terminal 101 and the transceiver 109 can be connected.

The transceiver 107 can transmit the transmission signal to the transceiver 109 when the transmission signal generated by the remote controller 103 is received by the mobile terminal 105. [ That is, the radio device 107 transmits the transmission signal including the PTT signal and the radio-oriented voice signal inputted through the microphone to the transceiver 109 via the first emergency communication network and the second emergency communication network .

At this time, the transceiver 107 may filter the PTT signal from the transmission signal, extract the voice signal toward the transceiver, output the extracted voice signal to the transceiver, and transmit the voice signal to the transceiver 109.

It is also possible to transmit a voice signal toward the terminal from the radio 109 to the mobile terminal 105, that is, a voice signal which is inputted to the radio 109 and is transmitted to the communication terminal 101 via the second emergency communication network The radio device 107 can transmit the voice signal to the communication terminal 101 (or the remote control device 103) via the first emergency communication network. The voice signal to the terminal may be transmitted to the remote control device 103 and output through a speaker provided in the remote control device 103.

On the other hand, when the transceiver 109 is located within a predetermined distance from the mobile terminal 105, the transceiver 107 establishes a local area network established by the mobile terminal 105 as the second emergency communication network, The communication terminal 101 and the transceiver 109 can be connected through the first emergency communication network and the local area network.

2 is a diagram illustrating an example of a system configuration in a case where a communication terminal in an emergency wireless communication system according to an embodiment of the present invention is a wired telephone.

2, an emergency wireless communication system 200 may include a wired telephone 201, a telephone remote control device 203, a cellular phone 205, a walkie talk device 207, and a walkie-talkie 209.

The landline telephone set 201 can make a call to the mobile phone 205 at a remote place through the public communication network and the mobile phone base station to configure the mobile phone 205 and the communication network.

The remote control device for a telephone 203 is configured such that when a switching network is established between the fixed telephone 201 and the cellular phone 205 and then the switching switch is switched from the fixed telephone 201 to the telephone remote control device 203, And may communicate with the mobile phone 205 through the communication network.

When the radio device 207 is inserted (or connected) to an external connection jack (for example, an external microphone / earphone jack), the mobile phone 205 located at a remote location is connected to an RCU (Remote Control Unit) , And the radio device 207, respectively. Here, when the mobile phone 205 is in the automatic reception mode and a call is received from the wired telephone set 201 while the wired telephone set 207 is inserted into the external connection jack, the mobile telephone 205 is automatically connected to the wired telephone set 207 .

When the user presses a push-to-talk (PTT) switch of the microphone in a state of being connected to the cellular phone 205 via the communication network, the telephone remote control device 203 transmits a PTT signal (e.g., a PTT tone of 2895 Hz sine wave) And generates a transmission signal by mixing the oscillated PTT signal with a voice signal (or an amplified voice signal) input through a microphone, and then transmits the generated transmission signal to the cellular phone 205. Here, the transmission signal can be input to the RCU card in the radio device 207 via the receiver (e.g., a speaker, an earphone) of the cellular phone 205.

The radio device 207 can be inserted into an external connection jack of the mobile phone 205 and connected to the mobile phone 205 and can establish a communication network between the mobile phone 205 and the radio 209.

The transceiver apparatus 207 receives the transmission signal from the cellular phone 205, extracts a PTT signal (loop signal) from the transmission signal through the RCU card, and transmits the PTT signal (loop signal) And transmits the pure voice signal that has passed through the PTT signal blocking filter to the transmitting unit, and can transmit the pure voice signal to the radio unit 209 located at a remote place through the transmitting unit.

The transceiver (operating transceiver) 209 can output the voice signal received from the transceiver 207. The transceiver 209 may transmit the input voice signal to the transceiver 207 when the voice signal is input via the microphone as a response to the voice signal output from the transceiver 209. [

The transceiver 207 transfers the voice signal received from the transceiver 209 to the transmitter of the cellular phone 205 and transmits the voice signal received from the cellular phone 205 to the transmitter 205 as the voice output of the internal receiver is directly connected to the transmitter of the cellular phone 205 To the telephone remote control unit 203 via the telephone line.

The telephone remote control device 203 can amplify the voice signal sent from the cellular phone 205 and output it through the speaker.

3 is a diagram illustrating an example of a system configuration when a communication terminal in an emergency wireless communication system according to an embodiment of the present invention is a cellular phone.

3, the emergency wireless communication system 300 includes a remote control device 301 for a mobile phone, a first mobile phone 303, a second mobile phone 305, a remote control device 307 for mobile phones and a radio 309, . ≪ / RTI >

The first mobile phone 303 can make a call to the second mobile phone 305 located at a remote location to form a communication network with the second mobile phone 305 located at a remote location. At this time, the first mobile phone 303 is communicated with the second mobile phone 305 under the control of the mobile phone remote control device 301 inserted (or connected) into an external connection jack (e.g., an external microphone / earphone jack) And can communicate with the transceiver 309 located at a remote place through the transceiver 307 inserted in the second cellular phone 305. [

Operations of the respective components in the emergency radio communication system 300 after the first mobile phone 303 and the second mobile phone 305 are connected through the communication network are the same as those in FIG. 2, and a description thereof will be omitted.

4 is a diagram illustrating a configuration of a remote control device in an emergency wireless communication system according to an embodiment of the present invention.

4, the remote control device 400 in the emergency wireless communication system includes a reception voice matching unit 401, a reception voice sensing unit 403, a reception voice amplification unit 405, a reception relay control unit 407, A transmission unit 409, a conversion unit 411, a transmission relay control unit 413, a transmission voice amplification unit 415, and a transmission voice matching unit 417.

The reception voice matching unit 401 separates the reception voice received from the mobile terminal located at the remote place into two voice signals and transmits the separated voice to the reception voice sense unit 403 and the reception voice amplification unit 405, respectively.

The reception voice sensing unit 403 receives one voice signal separated from the reception voice matching unit 401 and converts the received voice signal into a DC signal and transmits the DC signal to the control unit (CPU) 409. At this time, when the controller 409 detects the presence of a voice signal from the reception voice sensing unit 403, the control unit 409 outputs a notification of the reception mode (for example, blinking an RX LED (Light Emitting Diode)).

The receiving voice amplifying unit 405 receives another voice signal separated from the receiving voice matching unit 401 and amplifies the received voice signal and outputs the amplified voice signal through the speaker.

Since the reception voice amplification unit 405 operates under the control of the reception relay control unit 407 only when the reception voice is received, the speaker can output the reception voice only when the reception voice is received. That is, the reception voice amplification unit 405 allows the output of the speaker when the reception voice is received, while when the reception voice is not received, the output of the speaker is limited, (Noise) such as white noise is prevented from being outputted through the speaker, thereby preventing the user from being exposed to unnecessary noise.

The reception relay control unit 407 can operate in accordance with an instruction of the control unit 409 to control the operation of the reception voice amplification unit 405 when a reception voice is detected.

When receiving the voice signal from the reception voice sensing unit 403, the control unit 409 outputs a notification of the reception mode (for example, blinks the RX LED), and sends a command for the control signal to the reception relay control unit 407 Can be output.

Further, when the PTT switch of the MIC is pressed, the control unit 409 can output a notification of the transmission mode (e.g., flashing the TX LED) and oscillate the PTT signal (e.g., 2895 Hz pulse wave) . The control unit 409 can transmit the PTT signal to the transmission voice matching unit 417 through the conversion unit 411. [

The conversion unit 411 may convert the PTT signal received from the control unit 409 (for example, 2895 Hz pulse wave to 2895 Hz sinusoidal wave and amplify the signal), and may transmit the PTT signal to the transmission voice matching unit 417. At this time, when the PTT signal (2895 Hz pulse wave) of the pulse wave is generated in the control unit 409, the conversion unit 411 converts the PTT signal (2895 Hz sine wave) of the sine wave through the tone conversion unit composed of the resistor and the capacitor, And the amplified PTT signal can be amplified and output.

When the PTT switch of the microphone (MIC) is pressed, the transmission relay control unit 413 can operate according to a command of the control unit 409 and can control the conversion unit 411.

The transmission voice amplification unit 415 amplifies the voice signal inputted through the microphone and can transmit the amplified voice signal to the transmission voice matching unit 417.

The transmission voice matching unit 417 generates a transmission signal (PTT signal + voice signal) by combining the PTT signal generated by the conversion unit 411 and the voice signal received from the transmission voice amplification unit 415, (Transmission voice) to a mobile terminal located at a remote place.

5 is a diagram illustrating an example of an interface configuration of a telephone remote control device in an emergency wireless communication system according to an embodiment of the present invention.

Referring to FIG. 5, the telephone remote control device 500 in the emergency wireless communication system is an interface device that can be connected to a wired telephone line, and includes a transmission / reception switching relay unit 501, an impedance matching unit 503 And a normal telephone / remote control device selection switch 505. [

The transmission / reception switching relay unit 501 can be connected to a transmission voice (transmission unit) and a reception voice (reception unit). In general, a telephone line is connected to a reception voice, and only when a PTT signal is generated for transmission, To the telephone line.

When a transmission voice and a reception voice in a telephone remote control device 500 are connected to a telephone set and a telephone set of a wire telephone, when a voice is transmitted from a wire telephone, a part of the transmission voice returns to the telephone receiver, The transmission voice and the reception voice can be configured to be directly connected to the telephone line in order to improve the quality of the transmission and reception voice signals.

The transmission / reception switching relay unit 501 is switched to the transmission mode when the transmission signal is detected (when there is a PTT signal) because the transmission line and the reception voice can not be simultaneously transmitted by 1P (2 Wire) to the telephone line , And the other mode is connected to the reception mode, so that the voice signal can be transmitted / received by the half duplex communication method.

The impedance matching unit 503 performs impedance matching with the communication line with respect to the voice signal output from the transmission / reception switching relay unit 501 and can prevent the voice quality from deteriorating through noise removal using the filter.

The general telephone / remote control device selection switch 505 is connected to the telephone remote control unit 500 so that the telephone line is connected to the wired telephone when the telephone is made using the wired telephone, And after the connection is completed, the telephone remote control device 500 is connected to the telephone line through the operation of the switch.

6 is a diagram illustrating an example of an interface configuration of a remote control device for a mobile phone in an emergency wireless communication system according to an embodiment of the present invention.

Referring to FIG. 6, the mobile phone remote control device 600 in the emergency wireless communication system may include a connection unit (not shown) and a mobile phone microphone interface unit 601.

The connection unit can directly connect the signal received from the handset receiver (the voice signal received from the remote mobile phone) to the receiving voice (receiving unit).

In addition, the connection unit connects the transmission voice (voice signal + PTT signal transmitted to the remote mobile phone) to the mobile phone microphone interface (constituted by resistance), and the transmission voice signal is attenuated by the resistance, .

Here, the mobile phone microphone interface unit 601 has a loop resistance value (e.g., 1.2 k?) Similar to that of a microphone connected to a mobile phone, so that the mobile phone remote control device 600 can be connected to an external connection jack (Or connected) to the earphone jack), the mobile phone recognizes the loop resistance value so as to detect the connection of the remote control device 600 for the mobile phone.

FIG. 7 is a diagram illustrating a configuration of a radio apparatus in an emergency radio communication system according to an embodiment of the present invention.

7, a radio device 700 in an emergency wireless communication system may include an RCU card 701 and an interface unit 703. [

The RCU card 701 receives a transmission signal (PTT signal + transmission voice signal) transmitted from a remote control device from a cellular phone located at a remote place, amplifies the received transmission signal, and then outputs the PTT signal from the amplified transmission signal And extract the PTT signal.

The RCU card 701 provides the extracted PTT signal to the transmission / reception transfer relay in the interface unit 703, and controls the transmission / reception transfer relay to set the transmission unit in the radio device 700 to the transmission state.

In addition, the RCU card 701 can provide a pure voice signal remaining after the detected PTT signal passes through the PTT signal blocking filter to the voice filter for the transmitter in the interface unit 703. [ Here, the voice signal that has passed through the voice filter for the transmitter is input to the transmitting unit in the radio apparatus 700 as a transmission voice, and can be output to the radio located in the remote place.

The interface unit 703 passes the voice signal received at the receiving unit in the transceiver 700 to the voice filter for the receiver and the voice signal passed through the voice filter for the receiver is matched to the impedance via the mobile phone microphone (MIC) And then directly to the transmitter of the mobile phone.

8 is a flowchart illustrating an emergency wireless communication method according to an embodiment of the present invention. Here, the emergency wireless communication method may be implemented by an emergency wireless communication system including a remote control device and a walkie-talkie device.

Referring to FIG. 8, in step 801, a remote control device in the emergency radio communication system, which is inserted into an external connection jack of a communication terminal, can establish a first emergency communication network between the communication terminal and a mobile terminal located at a remote location have.

In step 803, in the wireless device in the emergency wireless communication system, the wireless device may be inserted into an external connection jack of the mobile terminal to establish a second emergency network between the mobile terminal and the wireless terminal.

At step 805, at the radio device within the emergency wireless communication system, the communication terminal and the radio can be connected through the first emergency network and the second emergency network.

The remote control device may generate a PTT signal when a push-to-talk command is input while a communication is established between the communication terminal and the mobile terminal. At this time, the transceiver apparatus may transmit a transmission signal including the PTT signal and a voice signal to the transceiver input through the microphone to the transceiver via the first emergency communication network and the second emergency communication network. Here, the transceiver may extract only the transceiver-oriented voice signal and output the PTT signal by filtering the PTT signal from the transmission signal.

When the voice signal from the transceiver to the mobile terminal is transmitted to the mobile terminal through the second emergency communication network, in step 808, the transceiver transmits the voice message to the mobile terminal through the first emergency communication network, To the communication terminal (or remote control device). The audio signal for the terminal may be transmitted to the remote control device and output through a speaker provided in the remote control device.

Wherein the remote control device connects the receiving portion in the remote control device to the first emergency communication network while the communication between the communication terminal and the mobile terminal is made and the push-to-talk command is not inputted, The transmission unit in the remote control device can be connected to the first emergency communication network.

In addition, when the transceiver is located within a predetermined distance based on the mobile terminal, the transceiver device may be a second emergency communication network, which establishes a local area network established by the mobile terminal, and the first emergency communication network and the local area network The communication terminal and the transceiver can be connected.

According to an embodiment of the present invention, a first emergency communication network is established between a communication terminal (e.g., a landline telephone, a mobile phone, etc.) and a mobile terminal Establishing a second emergency communication network between the mobile terminal and the transceiver and connecting the communication terminal and the transceiver through the first and second emergency communication networks so that communication between the communication terminal and the transceiver can be performed quickly do.

Thus, the present invention eliminates the need to install a dedicated line for communication between a communication terminal and a transceiver having a considerable separation distance, thereby reducing cost and time for installing a dedicated line. In addition, the present invention facilitates extension of communication between a communication terminal and a radio located in a remote location, in cooperation with an existing terminal (e.g., a communication terminal, a mobile terminal) by utilizing a communication infrastructure of an existing terminal.

The method according to an embodiment of the present invention may be implemented in the form of a program command that can be executed through various computer means and recorded in a computer-readable medium. The computer-readable medium may include program instructions, data files, data structures, and the like, alone or in combination. The program instructions to be recorded on the medium may be those specially designed and configured for the embodiments or may be available to those skilled in the art of computer software. Examples of computer-readable media include magnetic media such as hard disks, floppy disks and magnetic tape; optical media such as CD-ROMs and DVDs; magnetic media such as floppy disks; Magneto-optical media, and hardware devices specifically configured to store and execute program instructions such as ROM, RAM, flash memory, and the like. Examples of program instructions include machine language code such as those produced by a compiler, as well as high-level language code that can be executed by a computer using an interpreter or the like. The hardware devices described above may be configured to operate as one or more software modules to perform the operations of the embodiments, and vice versa.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments. For example, it is to be understood that the techniques described may be performed in a different order than the described methods, and / or that components of the described systems, structures, devices, circuits, Lt; / RTI > or equivalents, even if it is replaced or replaced.

Therefore, other implementations, other embodiments, and equivalents to the claims are also within the scope of the following claims.

100: Emergency wireless communication system 101: Communication terminal
103: remote control device 105: mobile terminal
107: radio device 109: radio

Claims (12)

A remote control device inserted into an external connection jack of the communication terminal to establish a first emergency communication network between the communication terminal and a mobile terminal located at a remote location; And
And a second radiotelephone unit inserted in an external connection jack of the mobile terminal for establishing a second emergency communication network between the mobile terminal and the radio unit,
Lt; / RTI >
The radio apparatus includes:
And connects the communication terminal and the transceiver through the first emergency communication network and the second emergency communication network. The method according to claim 1,
The remote control device includes:
When a push to talk (PTT) command is input in a state where a call is established between the communication terminal and the mobile terminal, a PTT signal is generated,
The radio apparatus includes:
And transmits a transmission signal including the PTT signal and the voice signal to the radiotelephone inputted through the microphone to the transceiver via the first emergency communication network and the second emergency communication network
Emergency wireless communication system. 3. The method of claim 2,
The radio apparatus includes:
The PTT signal is filtered from the transmission signal, and the voice signal to the transceiver is extracted and output
Emergency wireless communication system. The method according to claim 1,
When a voice signal is transmitted from the transceiver to the mobile terminal through the second emergency communication network,
The radio apparatus includes:
The voice signal for the terminal is transmitted to the communication terminal via the first emergency communication network so that the voice signal for the terminal is outputted through the speaker provided in the communication terminal
Emergency wireless communication system. The method according to claim 1,
The remote control device includes:
In a state in which a communication is established between the communication terminal and the mobile terminal,
While the push-to-talk command is not inputted, connects the receiver in the remote control device to the first emergency communication network,
Wherein while the push-to-talk command is being input, the transmitter in the remote control device is connected to the first emergency communication network
Emergency wireless communication system. The method according to claim 1,
When the transceiver is located within a predetermined distance based on the mobile terminal,
The radio apparatus includes:
Wherein the second emergency communication network is constructed by establishing a local area network established by the mobile terminal
Emergency wireless communication system. A remote control device inserted in an external connection jack of a communication terminal, comprising: establishing a first emergency communication network between the communication terminal and a mobile terminal located at a remote location;
A method for establishing a second emergency communication network between a mobile terminal and a transceiver in a transceiver apparatus, the transceiver being inserted into an external connection jack of the mobile terminal; And
In the transceiver, connecting the communication terminal and the transceiver through the first emergency communication network and the second emergency communication network
And an emergency wireless communication method. 8. The method of claim 7,
Generating a PTT signal when a push-to-talk command is input in a state where a call is established between the communication terminal and the mobile terminal; And
Transmitting, in the transceiver apparatus, a transmission signal including a PTT signal and a voice signal to the transceiver input via a microphone to the transceiver via the first emergency communication network and the second emergency communication network
Further comprising the steps of: 9. The method of claim 8,
In the radio device,
Filtering the PTT signal from the transmission signal and extracting and outputting the voice signal to the transceiver;
Further comprising the steps of: 8. The method of claim 7,
When a voice signal is transmitted from the transceiver to the mobile terminal through the second emergency communication network,
Transmitting the voice signal to the communication terminal through the first emergency communication network in the radiotelephone device so that the voice signal for the terminal is outputted through the speaker provided in the communication terminal
Further comprising the steps of: 8. The method of claim 7,
In a state in which a communication is established between the communication terminal and the mobile terminal,
Connecting the receiver in the remote control device to the first emergency communication network while the push-to-talk command is not being input in the remote control device; And
The step of connecting the transmitter in the remote control device to the first emergency communication network while the push-to-talk command is being input in the remote control device
Further comprising the steps of: 8. The method of claim 7,
When the transceiver is located within a predetermined distance based on the mobile terminal,
In the radio apparatus, as the second emergency communication network, establishing a local area network established by the mobile terminal
Further comprising the steps of:
KR1020150188641A 2015-12-29 2015-12-29 Emergency wireless communication system and method KR101782229B1 (en)

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KR102420977B1 (en) * 2021-12-22 2022-07-15 한화시스템 주식회사 Encryption processing unit for inter-operation of radio, encryption unit and intercom, and intercommunication system and method using the same

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KR101390352B1 (en) 2012-12-28 2014-04-30 주식회사 엔알피시스템 Walkytalky comprising smart phone and docking cradle
KR101415638B1 (en) 2013-01-07 2014-07-04 주식회사 엔알피시스템 System and Method of Providing Walkytalky-Service using Docking Cradle and Smart Phone

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KR102420977B1 (en) * 2021-12-22 2022-07-15 한화시스템 주식회사 Encryption processing unit for inter-operation of radio, encryption unit and intercom, and intercommunication system and method using the same

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