KR20180018952A - Floor-by-floor service apparatus for fire fighting wireless communication and floor-by-floor service method using therof - Google Patents

Abstract

The present invention relates to an interlayer service apparatus for wireless communication for firefighting capable of direct communication between mobile terminals or radios located on different floors in a building, and a method thereof. The present invention is proposed to solve problems of an existing PLA communication system. The interlayer service apparatus comprises: a TX signal level detector; a switch; and a controller.

Description

BACKGROUND OF THE INVENTION Field of the Invention [0001] The present invention relates to a floor service apparatus and a floor-to-floor service method for fire-

The present invention relates to an interlayer service apparatus and an interlayer service method for wireless communication for fire fighting, and more particularly, to an interlayer service apparatus and an interlayer service method for wireless communication for fire fighting, The present invention relates to an interlayer service apparatus and an interlayer service method for enabling interlayer services.

PLA (Power Line Amp) communication is a communication method in which when a coaxial cable is extended to transmit an RF signal in a mobile communication (including a portable communication terminal), the signal level is low due to loss of the line (AMP) on a communication path or line that enables service and coaxial cable extension by amplifying the RF signal level in the middle of the ground coaxial cable to compensate for losses.

1 is a schematic view of a fire control system using a conventional PLA communication system.

A fire control system using a conventional PLA communication system uses a coaxial cable as a communication line, and a transmission (TX) line and a reception (RX) line are formed independently from each other and a mobile terminal (for example, 101 and 103) and the repeater 110 of the disaster prevention room or the control station in the building.

However, there is a problem in that direct communication between the transceiver 101 and the transceiver 103 located on different layers in the building is impossible.

FIG. 2 is a view showing the configuration of FIG. 1 in more detail in order to explain a problem of a conventional PLA communication system.

Fig. 2 shows the line configuration of the inside of the building in Fig. 1 in more detail, and is a line configuration of two layers (A layer and B layer) inside the building.

The A and B layers are not necessarily the same layer of the building, and the A and B layers do not necessarily have to be continuous layers of the building. That is, layer A may be a basement layer and layer B may be any layer (e.g., 14 or 15 layers) on the ground.

The prior art PLA system includes a transceiver (115 in FIG. 1) and a basement (e.g., 220 in FIG. 2) within the service area of the outdoor transceiver antenna (116 in FIG. 1) 1) of the repeater (110 of FIG. 1), while the service between the transceiver (110 of FIG. 1) and the transceiver There is a problem that two or more radios (for example, the transceiver 210 and the transceiver 220) in the ground layer (layer B) and the ground layer (layer A) can not directly communicate with each other.

In the PLA communication system of the related art, a signal inputted through an RX input port 230 is output through a PLA inner block, and the output signal is distributed in a signal distributor 205 to be connected to a PLA 233 cascaded And only in one direction via line 232 for service.

The RX port configuration in the A layer is similar to the RX port configuration in the B layer. That is, it is configured to be transmitted only in one direction.

In the TX path, a TX signal 241 transmitted from the transceiver 210 and a signal 242 of an upper connected PLA are combined and a signal input through the input port 243 is output through the inner block.

The output signal is delivered to the cascaded PLA 246.

Thus, the conventional power line amplifier (coaxial cable installed) transmits signals only in a single direction.

The RX antennas 232 and 236 and the TX antennas 241 and 245 are provided to serve the inside of the floor but the transceivers 220 and 210 in the different layers inside the building can not directly communicate with each other Can not.

The signal transmitted through the RX antenna 232 or 236 is transmitted to the radio in each layer only the signal output from the repeater (110 in FIG. 1) to the RX line.

The radio signal received via the TX antenna 241 or 245 of each layer is output to the TX transmission antenna (116 of FIG. 1) of the Power Line Amp and the repeater (110 of FIG. 1) .

Thus, direct communication between radios located between different layers in a building is not possible, because there is no direct path to transmit the signal. Thus, there is a problem that direct communication between mobile terminals located in different layers in a building in a conventional PLA communication system is impossible.

The present invention has been proposed in order to solve the problems of the conventional PLA communication system as described above, and it is an object of the present invention to provide an interlayer service device for interfacing with a mobile terminal located in different layers in a building, And to provide a service method.

According to one aspect of the interlayer service apparatus for wireless fire communication of the present invention,

A Power Line Amplifier (PLA) of an interlayer service device for wireless communication for fire fighting having a TX path and an RX path separately,

A TX signal level detector for detecting reception of a transmission signal of the mobile terminal;

A switch for turning on / off the output of the reception signal received through the RX path to the RX antenna; And

And a controller for controlling the switch according to whether the TX signal level detector detects the transmission signal.

Preferably,

A TX antenna for receiving a transmission signal of the mobile terminal;

A TX output port for outputting the transmission signal to the TX path;

A TX input port for receiving a cascaded transmit signal input via a cascaded TX path;

An RX input port for receiving the received signal; And

And an RX output port for outputting a cascade reception signal output through the cascaded RX path.

Preferably,

Further comprising a splitter located outside the interlayer service device for wireless fire communication and distributing the transmission signal,

And the received signal is a part of a transmission signal distributed by the distributor.

Preferably,

The controller turns off the switch when the TX signal level detector detects the transmission signal to prevent the reception signal received through the RX path from being output to the RX antenna.

According to another aspect of the interlayer service apparatus for wireless fire communication of the present invention,

A Power Line Amplifier (PLA) inter-layer service apparatus having a TX path and an RX path separately,

A plurality of interlayer service modules installed in each floor of the building and allowing direct communication service between a first mobile terminal and a second mobile terminal located in different layers; And

And a repeater for distributing a transmission signal of the first mobile terminal transmitted through the TX path and transmitting a part of the transmission signals of the first mobile terminal to the RX path as a reception signal.

Preferably,

The first interlayer service module installed in the first layer of the building where the first mobile terminal is located

A first TX signal level detector for detecting reception of a transmission signal of the first mobile terminal;

A first switch for turning on / off the output of the reception signal transmitted through the RX path to the first RX antenna;

And a first controller for turning off the first switch upon detection of a transmission signal of the first mobile terminal in the first TX signal level detector,

Thereby preventing a transmission signal of the first mobile terminal located in the first layer from being output to the first RX antenna.

Preferably,

And a second interlayer service module installed in a second layer different from the first layer of the building where the second mobile terminal is located,

A second TX signal level detector for detecting reception of a transmission signal of the second mobile terminal;

A second switch for turning on / off the output of the received signal received through the RX path to the second RX antenna;

And a second controller for turning on the switch in response to a non-detection of a transmission signal of the second mobile terminal in the second TX signal level detector,

And a transmission signal of the first mobile terminal located in the first layer is transmitted as the reception signal to the two mobile terminals located in the second layer.

Preferably,

The first interlayer service module

A first TX antenna for receiving a transmission signal of the first mobile terminal;

A first TX output port for outputting a transmission signal of the first mobile terminal to the TX path;

A first TX input port for receiving a cascaded transmit signal input via a cascaded TX path;

A first RX input port for receiving the received signal; And

And a first RX output port for outputting a cascade reception signal output through the cascaded RX path.

Preferably,

The second interlayer service module

A second TX antenna for receiving a transmission signal of the second mobile terminal;

A second TX output port for outputting a transmission signal of the second mobile terminal to the TX path;

A second TX input port for receiving a cascaded transmit signal input via a cascaded TX path;

A second RX input port for receiving the received signal; And

And a second RX output port for outputting a cascade reception signal output through the cascaded RX path.

Preferably,

And the repeater is located in an emergency room located inside the building.

Preferably,

The repeater

A splitter for distributing a transmission signal of the first mobile terminal;

A transmission unit for transmitting a transmission signal of the first mobile station transmitted through the TX path to an outdoor TX antenna;

A receiving unit for transmitting an outdoor signal from the outdoor RX antenna to the RX path; And

And a combiner for combining the outdoor signal and the transmitted signal of the first mobile terminal and delivering the combined signal to the RX path.

Preferably,

A duplexer located in the interlayer service module and modulating a transmission signal of the first mobile terminal into a first frequency signal and restoring a second frequency signal into the reception signal; And

And a duplexer located in the repeater and including a second RF module for restoring the first frequency signal to a transmission signal of the first mobile terminal and modulating the reception signal to the second frequency signal.

Preferably,

And a line for transmitting the first frequency signal and the second frequency signal between a duplexer including the first RF module and a duplexer including the second RF module.

Preferably,

And a distributor for distributing the first frequency signal and the second frequency signal between a duplexer including the first RF module and a duplexer including the second RF module.

According to one aspect of the interlayer service method for wireless fire communication of the present invention,

A Power Line Amplifier (PLA) of an interlayer service method for wireless communication for fire prevention having a TX path and an RX path separately,

Detecting whether a transmission signal of the mobile station is received through the TX signal level detector; And

And a switch control step of controlling the switch to turn on / off the output of the reception signal received through the RX path to the RX antenna by using the controller according to whether the TX signal level detector detects the transmission signal do.

Preferably,

Further comprising the step of distributing the transmission signal through a distributor located outside the interlayer service equipment for wireless fire communication,

And the received signal is a part of a transmission signal distributed by the distributor.

Preferably,

The controller turns off the switch when the TX signal level detector detects the transmission signal to prevent the reception signal received through the RX path from being output to the RX antenna.

According to another aspect of the interlayer service method for wireless fire communication of the present invention,

TX path and a RX path separately, the method comprising the steps of: (a)

A first interlayer service module installed in a first layer of the building and a second interlayer service module installed in a second layer different from the first layer of the building,

The first interlayer service module including a first TX signal level detector, a first switch and a first controller, the second interlayer service module including a second TX signal level detector, a second switch and a second controller,

Detecting whether a transmission signal of the first mobile terminal is received through the first TX signal level detector;

The first TX signal level detector detects the transmission signal of the first mobile terminal and turns off the output of the reception signal transmitted through the RX path to the first RX antenna using the first controller, Controlling a first switch to cause the first switch to be turned on;

Detecting reception of a transmission signal of a second mobile terminal through the second TX signal level detector;

In response to detection of a transmission signal of the second mobile terminal in the second TX signal level detector, an output to the second RX antenna of the reception signal received via the RX path is turned on And controlling the second switch so that the second switch is turned on.

Preferably,

And distributing the transmission signal by a distributor located inside the building.

Preferably,

The received signal is part of a transmitted signal distributed in the distributor,

And a transmission signal of the first mobile terminal located in the first layer is transmitted as the reception signal to the two mobile terminals located in the second layer.

Preferably,

Modulating a transmission signal of the first mobile terminal into a first frequency signal and restoring a second frequency signal into the reception signal through a duplexer including a first RF module located in the interlayer service module; And

And restoring the first frequency signal to a transmission signal of the first mobile terminal and modulating the reception signal to the second frequency signal through a duplexer including a second RF module located in the repeater .

Preferably,

And a line for transmitting the first frequency signal and the second frequency signal between a duplexer including the first RF module and a duplexer including the second RF module.

Preferably,

And distributing the first frequency signal and the second frequency signal through a distributor located between a duplexer including the first RF module and a duplexer including the second RF module.

According to the interlayer service apparatus and the interlayer service method for wireless fire communication of the present invention, there is an effect that direct communication can be performed between the walkie-talkie located in different layers inside the building without being limited by the service range of the outdoor antenna of the repeater.

The interlayer service apparatus and the interlayer service method for wireless fire communication according to the present invention have the effect of enabling direct radio communication in the radiowave period located in different layers inside the building without constructing a separate line.

1 is a view conceptually showing a line configuration of a conventional PLA communication system.
FIG. 2 is a view for explaining a problem that direct communication in the building inside the building is impossible in the fire fighting communication system using the PLA communication system of FIG. 1.
3 is a schematic diagram of a PLA inter-layer service module according to the present invention.
4 is a diagram illustrating a layer-to-layer service using a PLA inter-layer service module according to the present invention.
5 is a block diagram of a PLA inter-layer service module according to the present invention.
6 is an overall system configuration diagram of an interlayer service apparatus for wireless communication for fire fighting according to the present invention.
7 is a flowchart illustrating an inter-layer service method for wireless communication for fire fighting according to an embodiment of the present invention.
8 is a flowchart illustrating an inter-layer service method for wireless communication for fire fighting according to another embodiment of the present invention.

In order to fully understand the present invention, operational advantages of the present invention, and objects achieved by the practice of the present invention, reference should be made to the accompanying drawings and the accompanying drawings which illustrate preferred embodiments of the present invention.

Hereinafter, the present invention will be described in detail with reference to the preferred embodiments of the present invention with reference to the accompanying drawings. Like reference symbols in the drawings denote like elements.

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

The PLA communication system according to the present invention refers to PLA (Power Line Amp) communication. When a coaxial cable is extended to transmit an RF signal in mobile communication (including TRS), the level of the signal is low (AMP) on a communication path or line that enables service and coax extension of the cable by amplifying the RF signal level in the middle of the ground coaxial cable to compensate for losses.

Although the fire fighting communication system has been disclosed as an embodiment of the PLA communication system according to the present invention, it is obvious that the present invention can be utilized for other purposes.

In the present invention, the TX signal is collectively referred to as a transmission signal of one or more mobile terminals, and the TX signal is configured to be transmitted from the mobile terminal to the relay device.

The RX signal in the present invention collectively refers to a signal received from one or more mobile terminals from a repeater, and the RX signal may include an RX / FM signal.

The present invention solves the problem that the conventional PLA communication system can not directly communicate with a radio in the building, that is, a mobile terminal, and enables direct communication including an interlayer service device without a separate line or path.

3 is a schematic diagram of a PLA inter-layer service module 300 according to the present invention.

The PLA inter-layer service module 300 according to the present invention includes a TX signal level detector 302, a switch 305, and a controller 304.

The TX signal level detector 302 detects whether or not a transmission signal of the mobile terminal 310 is received.

The switch 305 turns on / off the output of the received signal received via the RX path 340 to the RX antenna 360. [

The controller 304 controls the switch according to whether the TX signal level detector 302 detects the transmission signal.

The AMP 320 in FIG. 3 denotes a line amplifier for amplifying a signal on a transmission path, and the AMP 330 denotes a line amplifier for amplifying a signal on a receiving path.

An example of a mobile terminal in the present invention may be a TRS radio.

The TX signal level detector 302 receives the transmission signal of the mobile terminal using the TX antenna 350. [

Since the interlayer service device for wireless fire communication in the present invention uses one frequency, in order to prevent the reception signal having the information transmitted by the corresponding mobile terminal from being transmitted to the RX path where the mobile terminal that has transmitted the transmission signal is located .

The mobile terminal located in all the layers except the floor of the building where the mobile terminal 310 is located receives the transmission signal transmitted from the mobile terminal 310 but the mobile terminal 310 itself is configured to be excluded from the reception target And is a characteristic of the PLA inter-layer service module according to the present invention.

If the mobile terminal 310 is configured to receive again the transmission signal transmitted by the mobile terminal 310, the mobile terminal 310 driven by one frequency will not operate properly. Accordingly, the mobile terminal 310, which is the main body for transmitting the transmission signal, is excluded from the reception target, and only the mobile terminals located in the different layers should be configured to be the reception target.

Accordingly, when the PLA inter-layer service module 300 detects the reception of the transmission signal of the mobile terminal 310 from the TX signal level detector 302, the controller 304 turns off the switch 305 to connect the RX antenna 360 ) Of the received signal.

4 is a diagram illustrating a layer-to-layer service using a PLA inter-layer service module according to the present invention.

In FIG. 4, the mobile terminal 410 located at the B-th floor of the building 400 transmits a transmission signal.

The mobile terminal 420 located on the A-th floor except for the mobile terminal 410 located on the B-th floor and the mobile terminal 430 located on the C-th floor receive the transmission signal transmitted from the mobile terminal 410 located on the B-th floor Respectively.

The switch 403 included in the PLA inter-layer service module 431 located in the A layer of FIG. 4 may be turned on by the RX ANT and may transmit the received signal transmitted through the RX path.

Similarly, the switch 401 included in the PLA inter-layer service module 421 located on the C-layer may also be turned on by the RX ANT to transmit the received signal transmitted through the RX path.

However, the switch 402 included in the PLA inter-layer service module 411 located in the B-layer is turned off so as not to be connected to the RX ANT, and the received signal transmitted through the RX path is transmitted to the mobile terminal 410 of the B- .

In FIG. 4, the lines indicated by thick solid lines represent sections in which signals are actually transmitted, and the lines represented by thin solid lines represent sections during which signals are not transmitted.

The transmission path from the line amplifier 413 to the TX ANT 417 of the PLA interlayer service module 411 is represented by a bold solid line and is transmitted from the mobile terminal 410 located at the B- Indicates that the transmitted signal is transmitted.

6) from the TX output port 418 of the PLA inter-layer service module 411 in order to transmit the transmission signal of the mobile terminal 410 to the repeater (676 in Fig. 6) The interval between the TX input port 436 of the module 431 and the TX output port 438 of the PLA inter-layer service module 431 may be represented by a bold solid line.

The provision of the PLA communication layer service in the present invention means that the transmission signal of the mobile terminal 410 of the B layer is transmitted to the mobile terminal 430 of the A layer 430 and the mobile terminal 420 of the C layer 420 Therefore, the received signal transmitted through the RX path will naturally be part of the transmitted signal transmitted from the mobile terminal 410 of the B-th layer.

The transmission signal of the mobile terminal 410 transmitted to the TX path is distributed in the repeater (676 in FIG. 6), and a part of the distributed transmission signal is transmitted to the RX path, And then transferred to the mobile terminal 430 and the C-th layer to the mobile terminal 420 to perform the inter-layer service.

The function of the components inside the PLA inter-layer service module located in each layer will be described in detail in FIG.

4, the switch of the PLA inter-layer service module 411 is turned off because the mobile terminal 410 in the B-layer transmits the forwarding signal. However, if the mobile terminal 430 of the A- The switch 403 of the PLA interlayer service module 431 is turned off and the switch 401 of the PLA interlayer service module 421 of the B layer and the switch 401 of the PLA interlayer service module 411 402 will be turned on and connected to each RX antenna.

5 is a block diagram of a PLA inter-layer service module according to the present invention.

5 is a view for explaining each component included in the PLA inter-layer service module.

Although the PLA inter-layer service module 500 in FIG. 5 is shown as a combination of the TX stage 550 and the RX stage 510, the present invention is not limited thereto. have.

The PLA inter-layer service module 500 of the present invention includes a TX signal level detector 501, a switch 503, and a controller 502.

The TX signal level detector 501 performs the same function as the TX signal level detector 301 in FIG. 3 and the switch 503 performs the same function as the switch 305 in FIG. 3, 3 performs the same function as the controller 304 in Fig.

The TX antenna 552 receives the transmission signal of the mobile terminal.

The TX output port 553 outputs the transmission signal to the TX path.

The TX path in the present invention means a transmission line for transmitting a signal from the PLA inter-layer service module 500 to a repeater (676 in FIG. 6).

TX input port 551 receives a cascaded transmit signal that is input via a cascaded TX path.

The cascade transmission signal in the present invention may be a transmission signal transmitted from a mobile terminal of another layer.

The RX input port 513 receives the received signal.

The RX path in the present invention means a transmission line for transmitting a signal from the repeater (676 in FIG. 6) to the PLA inter-layer service module 500.

The RX output port 512 outputs a cascade receive signal output via the cascaded RX path.

The cascade reception signal may be a signal transmitted through the RX path, and may be a signal transmitted to a mobile terminal of another layer.

In FIG. 5, the 2-way combiner 554 receives and combines two signals and outputs them as one signal.

The 2WAY distributor 515 receives one signal and branches it to output two signals.

The PADs 555, 555-2, 555-3, 555-4, and 516-1, 516-2, 516-3, and 516-4 attenuate signals by implementing a pi-type PAD with a resistance value.

The AMPs 556, 556-1, 556-2, 517-1, and 517-2 are amplifiers for amplifying input signals.

The T-PAD 555-1 is a temperature compensation circuit.

The SAW filters 557 and 519 are filters that pass only the service band.

The ATTs 558, 558-1518, and 518-1 are attenuators that adjust the level of the signal.

6 is an overall system configuration diagram of an interlayer service apparatus for wireless communication for fire fighting according to the present invention.

6, an overall system of an interlayer service device for wireless fire communication according to the present invention includes a plurality of interlayer service modules provided in respective layers in a building, and a repeater 676 included in the disaster prevention room .

The interlayer service modules are installed in each floor of the building and allow direct communication service between the first mobile terminal and the second mobile terminal located in different layers.

The repeater 676 distributes the transmission signal of the first mobile terminal transmitted through the TX path and transmits a part of the transmission signal of the first mobile terminal, which is distributed, as the reception signal to the RX path.

The thick solid lines in FIG. 6 indicate that the signals are actually transmitted, and the thin solid lines indicate that no signals are transmitted.

The embodiment shown in FIG. 6 illustrates a service in which a mobile terminal 640 located in the C-layer transmits a transmission signal, and mobile terminals located in different layers receive transmission signals.

As described above with reference to FIGS. 3 and 4, the switch (not shown) in the interlayer service module is turned off so that the mobile terminal 640 located in the C layer does not receive a transmission signal.

The operation in the interlayer service module has already been fully described in FIGS. 3 to 5, so a detailed description thereof will be omitted. The operation in the repeater 676 and the interlayer service module (not shown) located in the interior of the building 600 621 and 631 will be described.

The transmission signal transmitted by the mobile terminal 640 located in the C layer is transmitted to the repeater 676 through the TX line.

In FIG. 6, the relay 676 is shown installed in the disaster prevention room 670, but is not limited thereto.

The location of the repeater may be located inside the building 600, or may be located outside the building if it provides a relay service for a plurality of buildings.

The transmission signal transmitted by the mobile terminal 640 located on the C-layer transmitted through the TX line is distributed in the distributor 672. [

The transmission signal transmitted by the mobile terminal 640 located in the distributed C layer is transmitted to the combiner 675 and transmitted through the RX path.

1, in the conventional PLA communication system, a transmission signal of a first mobile terminal located in a building is relayed through a mobile terminal 690 operated by an outdoor relay, And was able to communicate with the mobile terminal.

However, the PLA communication system of the present invention can understand that the interlayer service can be performed without artificially relaying an intermediary located outdoors by converting the transmission signal distributed through the distributor 672 located in the repeater into the RX path.

As shown in FIG. 6, the transmission signal of the distributed mobile terminal 640 is transmitted through the RX path as a received signal.

The transmission signal of the mobile terminal 640 transmitted through the RX path is transmitted to all the mobile terminals of the other layers except the C layer.

The coupler 675 shown in FIG. 6 may be located inside the repeater 676, and is not necessarily located outside the repeater.

The combiner 675 may receive the received signal from the outdoor mobile terminal 690 and transmit it to the RX path. That is, it can receive the transmission signal of the outdoor relay and transmit it to the mobile terminals inside the building.

And transmits the transmission signal of the mobile terminal 640 through the TX output port 673-2 of the TX terminal (or transmission section) 673 of the repeater 676. [ The mobile terminal 690 can receive the transmission signal of the mobile terminal 640 via the TX antenna 681.

The distributor 672 is not necessarily located inside the repeater 676 and may be located outside the repeater 676. [

The relay line 695 in the present invention includes duplexers 606 and 607 including an RF module installed in the interlayer service modules 631 and 621 from a duplexer 671 including an RF module located inside the repeater, .

The duplexers 606, 607, and 671 including the RF module convert a transmission signal and a reception signal having one frequency into a modulated signal having a different frequency, or a modulated signal having a different frequency, And converts the received signal into a reception signal and a transmission signal. Specifically, the RF module is involved in frequency conversion / demodulation, and the duplexer is involved in transmission / reception of frequency / demodulated frequency signals.

The characteristics of the duplexer including the RF module make it possible to configure the TX path and the RX path as a single path or line without separately configuring the relay path.

That is, in the relay period, two different frequencies can be operated on one line.

It is possible to overcome the disadvantage of separately configuring the TX path and the RX path by configuring the transmission frequency and the reception frequency differently.

The duplexer 671 including the RF module at the repeater 676 is not necessarily located inside the repeater, but may be located outside the repeater.

The distributor 605 located in the relay line 695 performs a function of bisecting the transmission signal and the reception signal to the interlayer service module 631 located on the ground and the interlayer service module 621 located in the ground.

If all interlayer service modules are located on the ground only and not underground, the distributor 605 would not be needed.

The interval between the distributor 605 and the duplexer 606 including the RF module in the relay line 695 and the duplexer 607 including the distributor 605 and the RF module in the relay line 695 in FIG. And the received signal are each composed of one line.

In other words, between the distributor 605 and the duplexer 606 including the RF module does not refer to the TX path, and between the distributor 605 and the duplexer 607 including the RF module does not mean the RX path.

7 is a flowchart illustrating an inter-layer service method for wireless communication for fire fighting according to an embodiment of the present invention.

A Power Line Ampli (PLA) interlayer service method detects whether a mobile station receives a transmission signal through a TX signal level detector in step S710.

The controller controls the switch to turn on / off the output of the received signal received through the RX path to the RX antenna according to whether the TX signal level detector detects the transmission signal (S720).

In order to provide the interlayer service, a part of the transmission signal of the mobile terminal must be transmitted to the mobile terminal of the other layer through the RX path.

The method may further include the step of distributing the transmission signal through the distributor located outside the interlayer service device for wireless fire communication. The received signal is part of the transmitted signal distributed at the distributor.

The controller turns off the switch when the TX signal level detector detects the transmission signal, thereby preventing the reception signal received via the RX path from being output to the RX antenna.

By turning off the switch, it is possible to prevent the transmission signal transmitted from the mobile terminal from being transmitted to the mobile terminal itself again.

8 is a flowchart illustrating an inter-layer service method for wireless communication for fire fighting according to another embodiment of the present invention.

The flowchart of Fig. 8 can be understood more clearly with reference to the system configuration diagram of Fig.

The interlayer service method for wireless fire communication of the present invention is performed by a first interlayer service module installed on a first layer of a building and a second interlayer service module installed on a first layer and a second layer of the building.

For clarity of illustration, two layers are described as an example, but may be configured to include more layers.

The first interlayer service module includes a first TX signal level detector, a first switch, and a first controller.

The second interlayer service module includes a second TX signal level detector, a second switch, and a second controller.

A first TX signal level detector in the first interlayer service module detects whether a transmission signal of the first mobile terminal is received (S810).

The first TX signal level detector detects the transmission signal of the first mobile terminal and uses the first controller to turn off the output of the reception signal transmitted through the RX path to the first RX antenna, The switch is controlled (S820).

S820 means that the received signal transmitted through the RX path is switched off to prevent the mobile terminal 640 in the C layer of FIG. 6 from being delivered to the RX antenna so that it can not receive the received signal.

Reception of the transmission signal of the second mobile terminal is detected through the second TX signal level detector (S830).

The second TX signal level detector notifies the second mobile terminal of the transmission signal of the second mobile terminal by using the second controller to turn on the output of the reception signal received through the RX path to the RX antenna, (S840).

In step S840, the mobile terminal 630 in the B layer, the mobile terminal 650 in the D layer, the mobile terminal 660 in the E layer, the mobile terminal 620 in the B1 layer, Means that the mobile terminal 610 in the mobile terminal 610 is switched on to allow the received signal transmitted through the RX path to be transmitted to the RX antenna so as to receive the received signal.

And distributing the transmission signal by a distributor located inside the building.

The received signal is a part of the transmitted signal distributed in the distributor so that the transmitted signal of the first mobile terminal located in the first layer is transmitted as the received signal to the two mobile terminals located in the second layer.

It will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention as defined in the appended claims. It will be clear to those who have.

300 PLA communication interlayer service module
302 TX signal level detector
305 switch
304 controller

Claims (23)

A TX path and an RX path,
A TX signal level detector for detecting reception of a transmission signal of the mobile terminal;
A switch for turning on / off the output of the reception signal received through the RX path to the RX antenna; And
And a controller for controlling the switch according to whether or not the TX signal level detector detects the transmission signal. The method according to claim 1,
A TX antenna for receiving a transmission signal of the mobile terminal;
A TX output port for outputting the transmission signal to the TX path;
A TX input port for receiving a cascaded transmit signal input via a cascaded TX path;
An RX input port for receiving the received signal; And
And an RX output port for outputting a cascade reception signal output through the cascaded RX path. The method of claim 2,
Further comprising a splitter located outside the interlayer service device for wireless fire communication and distributing the transmission signal,
Wherein the received signal is part of a transmission signal distributed in the distributor. The method of claim 3,
Wherein the controller turns off the switch when the TX signal level detector detects the transmission signal to prevent the reception signal received through the RX path from being output to the RX antenna. A TX path and an RX path,
A plurality of interlayer service modules installed in each floor of the building and allowing direct communication service between a first mobile terminal and a second mobile terminal located in different layers; And
And a repeater for distributing a transmission signal of the first mobile terminal transmitted through the TX path and transmitting a part of the transmission signals of the first mobile terminal as a reception signal to the RX path, Lt; / RTI > The method of claim 5,
The first interlayer service module installed in the first layer of the building where the first mobile terminal is located
A first TX signal level detector for detecting reception of a transmission signal of the first mobile terminal;
A first switch for turning on / off the output of the reception signal transmitted through the RX path to the first RX antenna;
And a first controller for turning off the first switch upon detection of a transmission signal of the first mobile terminal in the first TX signal level detector,
Thereby preventing a transmission signal of the first mobile terminal located in the first layer from being output to the first RX antenna. The method of claim 6,
And a second interlayer service module installed in a second layer different from the first layer of the building where the second mobile terminal is located,
A second TX signal level detector for detecting reception of a transmission signal of the second mobile terminal;
A second switch for turning on / off the output of the received signal received through the RX path to the second RX antenna;
And a second controller for turning on the switch in response to a non-detection of a transmission signal of the second mobile terminal in the second TX signal level detector,
Wherein a transmission signal of the first mobile terminal located in the first layer is transmitted as the reception signal to the two mobile terminals located in the second layer. The method of claim 6,
The first interlayer service module
A first TX antenna for receiving a transmission signal of the first mobile terminal;
A first TX output port for outputting a transmission signal of the first mobile terminal to the TX path;
A first TX input port for receiving a cascaded transmit signal input via a cascaded TX path;
A first RX input port for receiving the received signal; And
Further comprising: a first RX output port for outputting a cascade received signal output through the cascaded RX path. The method of claim 7,
The second interlayer service module
A second TX antenna for receiving a transmission signal of the second mobile terminal;
A second TX output port for outputting a transmission signal of the second mobile terminal to the TX path;
A second TX input port for receiving a cascaded transmit signal input via a cascaded TX path;
A second RX input port for receiving the received signal; And
And a second RX output port for outputting a cascade reception signal output through the cascaded RX path. The method of claim 5,
Wherein the repeater is located in an emergency room located inside the building. The method of claim 10,
The repeater
A splitter for distributing a transmission signal of the first mobile terminal;
A transmission unit for transmitting a transmission signal of the first mobile station transmitted through the TX path to an outdoor TX antenna;
A receiving unit for transmitting an outdoor signal from the outdoor RX antenna to the RX path; And
And a combiner for combining the outdoor signal with a transmission signal of the distributed first mobile terminal and transmitting the combined signal to the RX path. The method of claim 5,
A duplexer located in the interlayer service module and modulating a transmission signal of the first mobile terminal into a first frequency signal and restoring a second frequency signal into the reception signal; And
And a second RF module located in the repeater and restoring the first frequency signal to a transmission signal of the first mobile terminal and modulating the received signal to the second frequency signal, Interlayer service equipment for wireless communication. The method of claim 12,
And a line for transmitting the first frequency signal and the second frequency signal between a duplexer including the first RF module and a duplexer including the second RF module, Interlayer service equipment. 14. The method of claim 13,
Further comprising a distributor for distributing the first frequency signal and the second frequency signal between a duplexer including the first RF module and a duplexer including the second RF module. A method for inter-layer service for wireless communication for fire fighting, wherein each of the TX path and the RX path is separately provided,
Detecting whether a transmission signal of the mobile station is received through the TX signal level detector; And
And a switch control step of controlling the switch to turn on / off the output of the reception signal received through the RX path to the RX antenna by using the controller according to whether the TX signal level detector detects the transmission signal A method of interlayer service for wireless fire communication. 16. The method of claim 15,
Further comprising the step of distributing the transmission signal through a distributor located outside the interlayer service equipment for wireless fire communication,
Wherein the received signal is part of a transmitted signal distributed in the distributor. 18. The method of claim 16,
Wherein the controller turns off the switch when the TX signal level detector detects the transmission signal to prevent the reception signal received through the RX path from being output to the RX antenna. TX route and RX route, the method comprising the steps of:
A first interlayer service module installed in a first layer of the building and a second interlayer service module installed in a second layer different from the first layer of the building,
The first interlayer service module including a first TX signal level detector, a first switch and a first controller, the second interlayer service module including a second TX signal level detector, a second switch and a second controller,
Detecting whether a transmission signal of the first mobile terminal is received through the first TX signal level detector;
The first TX signal level detector detects the transmission signal of the first mobile terminal and turns off the output of the reception signal transmitted through the RX path to the first RX antenna using the first controller, Controlling a first switch to cause the first switch to be turned on;
Detecting reception of a transmission signal of a second mobile terminal through the second TX signal level detector;
In response to detection of a transmission signal of the second mobile terminal in the second TX signal level detector, an output to the second RX antenna of the reception signal received via the RX path is turned on And controlling the second switch so as to cause the second switch to switch to the second switch. 19. The method of claim 18,
And distributing the transmission signal by a distributor located inside the building. ≪ Desc / Clms Page number 19 > The method of claim 19,
The received signal is part of a transmitted signal distributed in the distributor,
Wherein a transmission signal of the first mobile terminal located in the first layer is transmitted as the reception signal to the two mobile terminals located in the second layer. 19. The method of claim 18,
Modulating a transmission signal of the first mobile terminal into a first frequency signal and restoring a second frequency signal into the reception signal through a duplexer including a first RF module located in the interlayer service module; And
And restoring the first frequency signal to a transmission signal of the first mobile terminal and modulating the reception signal to the second frequency signal through a duplexer including a second RF module located in the repeater A method for interlayer service for firewalls, comprising: 23. The method of claim 21,
And a line for transmitting the first frequency signal and the second frequency signal between a duplexer including the first RF module and a duplexer including the second RF module, Interlayer service method. 23. The method of claim 22,
Further comprising distributing the first frequency signal and the second frequency signal through a distributor located between a duplexer including the first RF module and a duplexer including the second RF module, ≪ / RTI >

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