KR102213937B1 - Radio communication auxiliary system - Google Patents

Abstract

The present invention relates to a wireless communication aid system which allows communication between a basement and a very high story. The wireless communication aid system comprises: at least one main trans repeater arranged on the ground to up-convert or down-convert transceived firefighting wireless signals and managing wireless signals to transmit the firefighting wireless signals and the managing wireless signals; a plurality of terminal trans repeaters arranged on a high story and a basement to up-convert or down-convert transceived firefighting wireless signals and managing wireless signals to transmit the firefighting wireless signals and the managing wireless signals; and a combiner connected to the at least one main trans repeater and the plurality of terminal trans repeaters to combine firefighting wireless signals and managing wireless signals received from the main trans repeater and the plurality of terminal trans repeaters. The main trans repeater or the terminal trans repeater includes: a band pass filter into which a signal is inputted; a first automatic gain switch controller which allows a signal passing through the band pass filter to pass therethrough, and is turned off by a control unit when an input through an antenna is received; an automatic gain controller to lower a signal passing through the first automatic gain switch controller to be amplified by an amplifying unit and passing through the band pass filter; and a second automatic gain switch controller which is turned on by control of an NMS/main control unit when the lowered signal is amplified by the amplifying unit to be inputted.

Description

Radio communication auxiliary system

The present invention relates to a wireless communication auxiliary system, and more particularly, to a wireless communication auxiliary system to enable communication between the basement and the high-rise.

Wireless communication auxiliary equipment is necessary to communicate with fire brigades or with disaster prevention centers or related personnel in emergencies such as fire extinguishing and rescue activities.In the case of basement floors, due to the structure buried in the basement, radio waves cannot be reached smoothly, so mutual communication Since this is not easy, it is a firefighting facility introduced to supplement it. Radio communication auxiliary equipment should be installed in the basement floor for a certain purpose or in the basement floor over a certain area for the fire brigade to contact the ground from the basement.

The existing wireless communication auxiliary equipment was installed for the purpose of communication with the basement in the disaster prevention room on the ground, but the current revised fire fighting law mandated the installation of radio transmission/reception facilities for fire fighting in buildings with 16 floors or more above the ground.

Such wireless communication auxiliary equipment is disclosed in Patent Publication No. 10-1079043, Patent Publication No. 10-1550903, and Patent Publication No. 10-2015-0140151.

1 is a view for explaining the operation of a conventional wireless communication auxiliary equipment.

Referring to FIG. 1, a conventional wireless communication auxiliary equipment transmits or receives a radio signal from a fire fighting radio and a radio signal from a management radio. In this wireless communication auxiliary equipment, two lines are used, one line is used for transmission and the other line is used for reception. Therefore, in the conventional wireless communication auxiliary equipment, the transmission line cannot simultaneously transmit the fire fighting radio signal and the management radio signal.

In addition, wireless communication auxiliary equipment can communicate from the disaster prevention room to the ground and underground, but due to structural limitations, communication between the basement and the skyscraper is impossible.

As described above, the conventional wireless communication auxiliary equipment is configured as a single message transmission (Single Message Transmission) communication system that provides a two-way communication service using one frequency. The wireless communication auxiliary equipment is capable of communicating from the disaster prevention room to the ground and underground, but due to the structure, communication between the basement and the high-rise building is impossible, so there is a problem in that communication is not performed smoothly.

The present invention has been conceived to solve the above-described problem, and an object of the present invention is to provide a wireless communication auxiliary system that enables communication between the basement and the skyscraper.

A wireless communication auxiliary system according to an embodiment of the present invention for solving the above-described problem is at least one main transformer repeater that up-converts or down-converts and transmits, respectively, a fire fighting radio signal and a management radio signal transmitted and received on the ground. trans repeater); A plurality of terminal trans repeaters for transmitting and receiving up-converted or down-converted fire-fighting radio signals and management radio signals, which are disposed on high floors and underground, respectively; A combiner connected to the at least one main transformer repeater and the plurality of terminal transformer repeaters to combine fire fighting radio signals and management radio signals received from the main transformer repeater and the plurality of terminal transformer repeaters; and The main transformer repeater or the terminal transformer repeater includes a bandpass filter to which a signal is input; A first automatic gain switch controller that passes a signal passing through the bandpass filter and is turned off by a controller when an input through an antenna is received; An automatic gain controller that passes through the first automatic gain switch controller, amplifies in an amplification unit, and lowers a signal that has passed through the bandpass filter; And a second automatic gain switch controller in which the lowered signal is amplified by the amplifying unit and turned on by the control of the NMS/main controller when a signal is input.

In the wireless communication auxiliary system according to the present invention, one input port is connected to the disaster prevention room side, and two output ports are connected to the radios having different floors, respectively, and resistance power to input and output signals between the radios having different floors. Distributor; includes.

In addition, in the wireless communication auxiliary system according to the present invention, one input port is connected to any one of the two output ports of the resistive power divider, and the two output ports are respectively connected to a radio side having different layers, and the It may further include a different resistance power divider for inputting and outputting signals between the radios having different layers.

According to another embodiment of the present invention, when one of an uplink fire fighting radio signal and an uplink management radio signal is received from one of the plurality of terminal transformer repeaters through the combiner, the received radio signal is modulated into a downlink radio signal and the And a radio signal return device for returning a downlink radio signal to the combiner, and the radio signal return device may include a fire fighting radio signal return unit and a management radio signal return unit.

According to another embodiment of the present invention, the first automatic gain switch controller maintains a standby state when there is no input signal, and the second automatic gain switch controller is turned on when a signal is input to the first automatic gain switch controller ( can be configured to be on).

According to another embodiment of the present invention, the NMS/main control unit is a main control unit of a disaster prevention room, and is capable of receiving data sent from each control unit to monitor operation status and control an ON/OFF level for each channel. have.

According to another embodiment of the present invention, the NMS/main control unit may control and manage the wireless communication auxiliary system, and may prevent an oscillation phenomenon through an automatic address control method (AUTO ON/OFF).

According to the present invention, by returning the uplink radio signal from the basement or the upper floor to the upper floor or the basement through the combiner, it is possible to connect to the basement even if the wireless signal is transmitted from the upper floor.

According to the present invention, a fire fighting radio and a management radio can be used at the same time, and two downlink channels and two uplink channels are accommodated in one equipment, so that the fire fighting radio and the management radio can be used simultaneously without interference from each other.

In addition, according to the present invention, all control and management are possible with an integrated NMS method, and an oscillation phenomenon may be prevented through an automatic address control method (AUTO ON/OFF).

1 is a view for explaining the operation of a conventional wireless communication auxiliary equipment.
2 is a view for explaining the operation of the wireless communication auxiliary system according to an embodiment of the present invention.
3 is a block diagram of a main transformer repeater according to an embodiment of the present invention.
4 to 6 are diagrams for explaining connection of a wireless communication auxiliary system according to an embodiment of the present invention when receiving a radio on the ground and underground.
7 is a diagram for explaining a distributor of a wireless communication auxiliary system according to an embodiment of the present invention.

Hereinafter, a preferred embodiment of the present invention will be described in detail with reference to the accompanying drawings. However, in describing the embodiments, when it is determined that a detailed description of a related known function or configuration may unnecessarily obscure the subject matter of the present invention, a detailed description thereof will be omitted. In addition, the size of each component in the drawings may be exaggerated for the sake of explanation, and does not mean a size that is actually applied.

2 is a view for explaining the operation of the wireless communication auxiliary system according to an embodiment of the present invention.

Referring to FIG. 2, a wireless communication auxiliary system according to an embodiment of the present invention transmits or receives a radio signal from a fire fighting radio and a radio signal from a management radio. The wireless communication auxiliary system according to an embodiment of the present invention uses 4 lines for transmission and reception of radio signals, 2 lines are used for fire fighting radio signals, and the other 2 lines are used for management radio signals.

According to the present invention, since the first frequency (450 Mhz) and the second frequency (423 Mhz) have separate transmit (TX)/receive (RX) channels, since it is a two-channel method, smooth communication is possible without interference from communication. Can transmit, fire fighting radio signal and management radio signal at the same time.

3 is a block diagram of a main transformer repeater according to an embodiment of the present invention.

Since the configurations of the main transformer repeater and the terminal transformer repeater are almost similar, the configuration of the main transformer repeater will be described here, and the configuration of the terminal transformer repeater will be referred to the description of the main transformer repeater.

Referring to FIG. 3, the main transformer repeater 200 uses two transmission channels for transmitting a fire fighting radio signal and a management radio signal, respectively, and two receiving channels for receiving a fire fighting radio signal and a management radio signal, respectively.

In the main transformer repeater 200 according to an embodiment of the present invention, each of the transmission channel and the reception channel is a bandpass filter 202, 212, 222, or 232, an automatic gain switch controller 203, 213, 223, or 233. ), amplification unit 204, 214, 224, or 234, automatic gain controller 206, 216, 226, or 236, amplification unit 207, 217, 227, or 237, automatic gain switch controller 208, 218 , 228, or 238), and a band pass filter 209, 219, 229, or 239.

In addition, the main transformer repeater 200 controls the two dividers 244 and 264 for synthesizing the transmitted fire fighting radio signal and the management radio signal, the controller 250 for controlling the automatic gain switch controller, and the controller 250 NMS/ for controlling on/off of the first automatic gain switch controller (203, 213, 223, 233) or the second automatic gain switch controller (208, 218, 228, or 238) It further includes a main control unit 290.

The main transformer repeater or terminal transformer repeater according to the present invention passes through the bandpass filter 202, 212, 222, or 232 to provide an address automatic on/off control method for preventing oscillation. One signal is passed through the first automatic gain switch controller (203, 213, 223, 233), and when an input through an antenna is received, the first automatic gain switch controller (203, 213, 223, 233) is It is off. The automatic gain controller 206, 216, 226, or 236 passes through the first automatic gain switch controller 203, 213, 223, 233 to be amplified in the amplifying unit 204, 214, 224, or 234 and The signal that has passed through the pass filter 205, 214, 225 or 235 is lowered, and the second automatic gain switch controller 208, 218, 228, or 238 allows the lowered signal to be converted to the amplifying unit 207, 217, 227, Alternatively, it is amplified at 237 and turned on by the control of the NMS/main controller 290 when a signal is input.

In addition, the first automatic gain switch controller (203, 213, 223, 233) maintains a standby state when there is no input signal, and the second automatic gain switch controller (208, 218, 228, or 238) is 1 When a signal is input to the auto gain switch controller, it is turned on.

For example, the first automatic gain switch controller (203, 213, 223, 233) is always in a standby state when there is no signal, and the second automatic gain switch controller (208, 218, 228, or 238) is the first When a signal is input to the auto gain switch controller (203, 213, 223, 233), it is turned on.

In addition, when a signal is input to the A automatic gain switch controller 203 among the first automatic gain switch controllers 203, 213, 223, 233, the NMS/main control unit 290 detects the input of the signal and The automatic gain switch controller 223 is automatically turned off.

4 to 6 are diagrams for explaining the connection of a wireless communication auxiliary system according to an embodiment of the present invention when receiving a radio on the ground and underground, and in more detail, FIGS. 4 and 5 are A connection diagram when receiving a radio at the 40th floor and a 3rd basement level according to an embodiment, and FIG. 6 is a connection diagram when receiving the radio at the 40th floor according to the prior art.

The wireless communication auxiliary system according to an embodiment of the present invention is a two-channel transmission method as shown in Figs. 4 and 5, and an address is automatically turned on for operation monitoring, level control, and prevention of oscillation through the NMS control method. As an /off control method, in the up-down converter method according to the prior art of FIG. 6, the place where the signal comes from either the ground or underground in (IN) / out (OUT) direction becomes priority, and the other places are off. Since it is (off), it is impossible to transmit even if a signal is input from the other side, but according to the present invention, as shown in Figs. 4 and 5, it is designed to be able to use a fire fighting radio and a management radio at the same time using a resistive power divider. Because it is a two-channel method, it is possible to communicate smoothly without disturbing communication because 450 Mhz frequency and 423 Mhz frequency have separate transmit (TX)/receive (RX) channels.

That is, according to the present invention, as shown in FIGS. 4 and 5, in the resistance power divider, one input port is connected to the disaster prevention room side, and two output ports are connected to the radio side having different layers, respectively, so that the layers are different. You can input and output signals between radios.

In addition, the other resistance power divider is connected to the resistance power divider through a bidirectional amplifier, and more specifically, the other resistance power divider has one input port connected to any one of the two output ports of the resistance power divider, Two output ports are connected to the radios having different layers, respectively, so that signals between the radios having different layers may be input/output.

7 is a diagram for explaining a distributor of a wireless communication auxiliary system according to an embodiment of the present invention, and in more detail, FIG. 7(a) is a diagram for explaining a method of a Wilkinson distributor according to the prior art 7B is a view for explaining a resistive power divider method according to an embodiment of the present invention.

The wireless communication equipment according to the prior art was installed for the purpose of communication with the underground in the ground disaster prevention room. In the current revised Fire Service Act, the installation of non-transmission-receiving equipment for fire fighting is compulsory for buildings with more than 16 stories above the ground, but wireless communication equipment according to the prior art can communicate both above and below ground in the disaster prevention room, but because of the structure, it is impossible to communicate between the basement and skyscrapers. I did.

As shown in (b) of FIG. 7, the resistive power distribution method according to the present invention transmits signals received from underground or high-rise as an upstream signal, whereas a distribution method according to the prior art as in FIG. 7 (a) In, signals are transmitted only between the input port and the output port, and signals cannot be transmitted between the output port and the output port.

Therefore, there was a problem in that signals are not transmitted between the output port and the output port, which is a problem in the conventional Wilkinson distribution method, but the resistive power distribution method according to the present invention solves such a problem so that a signal can be transmitted through one line. Thus, there is an effect of enabling communication between firefighters at any location.

As described above, according to the present invention, a fire fighting radio and a management radio can be used at the same time, and two downlink channels and two uplink channels are accommodated in one equipment, so that the fire fighting radio and the management radio can be used at the same time without mutual interference. . In addition, according to the present invention, all control and management are possible with an integrated NMS method, and an oscillation phenomenon may be prevented through an automatic address control method (AUTO ON/OFF).

In the detailed description of the present invention as described above, specific embodiments have been described. However, various modifications may be made without departing from the scope of the present invention. The technical idea of the present invention is limited to the above-described embodiments of the present invention and should not be defined, and should not be defined by the claims as well as the claims and equivalents.

100: combiner
200: main transformer repeater
300: terminal transformer repeater
400: wireless signal return device

Claims (7)

In the wireless communication auxiliary system,
At least one main trans repeater arranged on the ground to transmit and receive a fire fighting radio signal and a management radio signal by up-converting or down-converting, respectively;
A plurality of terminal trans repeaters for transmitting and receiving a fire fighting radio signal and a management radio signal transmitted and received by up-converting or down-converting respectively;
A combiner connected to the at least one main transformer repeater and the plurality of terminal transformer repeaters to combine fire fighting radio signals and management radio signals received from the main transformer repeater and the plurality of terminal transformer repeaters; and
The main transformer repeater or the terminal transformer repeater,
A band pass filter to which a signal is input;
A first automatic gain switch controller that passes a signal passing through the bandpass filter and is turned off by a controller when an input through an antenna is received;
An automatic gain controller that passes through the first automatic gain switch controller, amplifies in an amplifying unit, and lowers a signal that has passed through the bandpass filter; And
The lowered signal is amplified by the amplifying unit and a second automatic gain switch controller that is turned on by the control of the NMS/main control unit when the signal is inputted; and
A resistance power divider in which one input port is connected to the disaster prevention room side, and two output ports are connected to the radios having different floors, respectively, to input and output signals between the radios having different floors; And
One input port is connected to any one of the two output ports of the resistive power divider through a bidirectional amplifier, and the two output ports are respectively connected to the radios having different layers, so that the signal between the radios having different layers Other resistance power divider for inputting and outputting;
Wireless communication assistance system comprising a.
delete delete The method according to claim 1,
When one of an uplink fire fighting radio signal and an uplink management radio signal is received from one of the plurality of terminal trans repeaters through the combiner, the received radio signal is modulated into a downlink radio signal to convert the downlink radio signal to the combiner. Including; a wireless signal return device to return,
The wireless signal return device is a wireless communication auxiliary system comprising a fire fighting radio signal return unit and a management radio signal return unit.
The method according to claim 1,
The first automatic gain switch controller maintains a standby state when there is no input signal,
The second automatic gain switch controller is a wireless communication auxiliary system that is turned on when a signal is input to the first automatic gain switch controller.
The method according to claim 1,
The NMS/main control unit,
As a main control unit of the disaster prevention room, a wireless communication auxiliary system that receives data sent from the control unit to monitor operation status and control an ON/OFF level for each channel.
The method of claim 6,
The NMS/main control unit,
A wireless communication auxiliary system capable of controlling and managing the wireless communication auxiliary system and preventing an oscillation phenomenon through an automatic address control method (AUTO ON/OFF).

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