KR200497241Y1 - Wireless communication auxiliary equipment system transmitting disaster broadcasting using building terminal box or household terminal box of the transmission line equipment in broadcast joint reception facility, and remote equipment therefor - Google Patents

Abstract

The present invention relates to a wireless communication auxiliary equipment system that transmits disaster broadcasts using the terminal box of transmission line equipment or a household terminal box, and remote equipment therefor. The wireless communication auxiliary equipment system is an overall wireless communication auxiliary equipment system. Main equipment (MU) that receives firefighting radio signals from the wireless communication device (control station electrician) in the central control room and outputs firefighting signals by filtering, amplifying, and adjusting the signal level; A plurality of remote units (RUs) installed on basement and upper floors and communicating with wireless communication devices (Daewon radios) and main equipment located on the basement or ground floor of the building; and at least one distributor that receives a firefighting signal from the main equipment and distributes the firefighting signal to a plurality of remote equipment, and receives a firefighting signal from the plurality of remote equipment and transmits it to the main equipment, and the remote equipment receives the firefighting signal from the main equipment. A firefighting wireless signal unit that receives firefighting wireless signals through a distributor and transmits them to a wireless communication device (Daewon radio), and receives firefighting wireless signals from the wireless communication device (Daewon radios) and transmits them to the main equipment through the distributor; and a disaster broadcasting unit that receives and outputs disaster broadcast signals from the broadcasting joint reception facility.

Description

A wireless communication auxiliary equipment system that transmits disaster broadcasts using the copper terminal box of the transmission line facility or the household terminal box in the broadcasting common reception facility, and remote equipment therefor OF THE TRANSMISSION LINE EQUIPMENT IN BROADCAST JOINT RECEPTION FACILITY, AND REMOTE EQUIPMENT THEREFOR}

This invention relates to wireless communication, and in particular, in disaster environments such as firefighting, disaster broadcasts are transmitted with an impedance of 50 ohms using the copper terminal box or household terminal box of the transmission line equipment belonging to the broadcasting common reception equipment using an impedance of 75 ohms (Ω). It is about a wireless communication auxiliary equipment system and remote equipment for it.

In order to support firefighters' smooth communication in the event of a fire, buildings over a certain size are required to install wireless communication auxiliary equipment in the underground section and inside the building in accordance with the fire safety standard (NFSC 505). In particular, in the event of a fire, it is difficult for radio waves to reach high-rise buildings, causing problems in communication between fire departments. To complement this, wireless communication auxiliary equipment is needed. Wireless communication auxiliary equipment is required by law to use an impedance of 50 ohms.

Wireless communication auxiliary equipment is firefighting equipment needed to communicate with fire brigade members, disaster prevention centers, or officials while entering a building and performing firefighting and rescue activities in the event of a fire. In the case of the underground floor, unlike the ground floor, radio waves do not reach smoothly due to the underground structure, so mutual communication is not easy, so wireless communication auxiliary equipment was introduced to supplement this. Through wireless communication auxiliary equipment, even if a fire breaks out in a building, the fire brigade can enter underground structures or buildings and establish stable communication. In other words, if the fire brigade enters the basement, they may face a difficult situation if they cannot contact the ground. Therefore, in order to support smooth communication for firefighters in the event of a fire, buildings over a certain size must have wireless communication auxiliary equipment in accordance with the fire safety standard (NFSC 505). It is mandatory to be installed in underground sections and buildings. The fire safety standard (NFSC 505), revised in March 2021, requires that effective communication is possible in all parts of the floor where the antenna is installed (including stairwells, elevators, and separately partitioned rooms), and that radios connected to outdoor antennas exist inside the building. It has been strengthened that mutual communication between radios that operate, mutual communication between radios inside a building, and mutual communication between a radio connected to an outdoor antenna and a disaster prevention room, or between a radio and a disaster prevention room inside a building, must be possible.

Conventionally installed wireless communication auxiliary equipment was installed for the purpose of communicating with the underground from the central control room on the ground. However, the current revised fire law makes it mandatory for buildings over 30 stories above ground to install firefighting radio transmission and reception equipment. In order to provide disaster broadcasting, a repeater wireless device capable of receiving FM radio and mobile multimedia broadcasting must be installed on the basement floor of the building in accordance with the notice on the installation standards for joint broadcasting reception facilities. A distributor and serial terminal with an impedance of 75 ohms must be installed in the terminal box of each household in the broadcasting common reception facility.

Conventionally, in order to equip a wireless communication auxiliary facility with a disaster broadcasting function and use it as a disaster broadcasting facility, a separate disaster broadcasting relay device had to be installed in the wireless communication auxiliary facility. Disaster broadcasts could be transmitted using the transmission line of wireless communication auxiliary equipment. In order to provide disaster broadcasting, a disaster broadcasting relay device was installed in wireless communication auxiliary equipment, adding to the cost and time required for system construction.

Registered Patent Publication No. 10-1843404 (2018.03.23)

The problem that the present design seeks to solve is created to solve the above-mentioned problems. In the case of buildings, the broadcasting joint reception equipment is installed at the head end of the central control room, and the household outlet is installed in the living room and each room through the terminal box and the household terminal box. By taking advantage of the fact that two-way communication is possible, disaster broadcasting can be transmitted without separately installing a disaster broadcasting relay device in wireless communication auxiliary equipment. Wireless communication that transmits disaster broadcasting using the terminal box of the transmission line facility or the household terminal box. It provides an auxiliary equipment system.

Another problem that the present invention aims to solve is to provide remote equipment that constitutes a wireless communication auxiliary equipment system that transmits disaster broadcasts using the copper terminal box of the transmission line facility or the household terminal box.

The wireless communication auxiliary equipment system that transmits disaster broadcasts using the copper terminal box or household terminal box of the transmission line facility according to an example of the present invention to achieve the above technical problem is between the basement floors of the building and the basement floor in the event of a disaster or in an emergency situation. In the wireless communication auxiliary equipment system that supports inter-floor communication through wireless communication devices between ground floors, the wireless communication auxiliary equipment system is generally controlled, and firefighting wireless signals are received and filtered from the wireless communication device (control operation equipment) in the central control room. , Main equipment (MU) that outputs firefighting signals by amplifying and adjusting the signal level; A plurality of remote equipment (RUs) installed in the basement and upper floors of the building where radio waves do not reach smoothly, and communicating with the main equipment and a wireless communication device (Daewon radio) located on the basement or ground floor of the building; and at least one distributor that receives the fire-fighting signal from the main equipment and distributes the fire-fighting signal to the plurality of remote equipment, and receives the fire-fighting signal from the plurality of remote equipment and transmits it to the main equipment, the remote The equipment receives the firefighting wireless signal from the main equipment through the distributor and transmits it to the wireless communication device (Daewon radio), and receives the firefighting wireless signal from the wireless communication device (Daewon radio) to the main equipment (110) through the distributor. Firefighting radio signal unit transmitting to; and a disaster broadcasting unit that receives and outputs disaster broadcast signals from the broadcasting joint reception facility.

The disaster broadcasting unit includes a disaster broadcasting receiving unit that receives a disaster broadcasting signal from a terminal box or a household terminal box of a transmission line facility belonging to the broadcasting common reception facility and converts an impedance of 75 ohms (Ω) into an impedance of 50 ohms; An FM broadcasting signal filter that filters signals in the FM broadcasting signal band among the disaster broadcasting signals received by the disaster broadcasting receiver; A DMB broadcasting signal filter that filters signals in the terrestrial DMB broadcasting signal band among the disaster broadcasting signals received by the disaster broadcasting receiver; an amplifier that amplifies the FM broadcast signal and the terrestrial DMB broadcast signal output from the FM broadcast signal filter and the DMB broadcast signal filter; a signal level adjustment unit that adjusts the signal levels of the amplified FM broadcast signal and the terrestrial DMB broadcast signal and transmits them to an antenna; It includes an antenna that outputs the FM broadcasting signal and the terrestrial DMB broadcasting signal adjusted by the signal level adjustment unit to the outside.

The main unit (MU) receives a firefighting radio signal from a wireless communication device (control radio) in the central control room, removes frequency modulation and noise, and outputs it. The plurality of remote units (RUs) are located on the basement or ground floor of the building. It communicates with the existing wireless communication device (Daewon radio) at different transmission and reception frequencies with the main equipment.

The main equipment and the distributor are connected to each other through a coaxial cable, the distributor is connected to at least one remote device by wireless or a coaxial cable, the distributor and the Daewon radio are connected to each other through at least one remote device, and the distributor and at least one remote device disposed between the Daewon radio is connected by a wireless or coaxial cable, and when the at least one distributor is plural, the distributors may be connected by a coaxial cable.

The remote equipment that constitutes the wireless communication auxiliary equipment system that transmits disaster broadcasts using the terminal box or household terminal box of the transmission line facility to solve other problems of the present invention is not suitable for smooth arrival of radio waves in the event of a disaster or in an emergency situation. When a wireless communication auxiliary equipment system supporting inter-floor communication through wireless communication devices between the basement floors of a building with non-basement floors and between the basement floor and the ground floor is composed of main equipment and a plurality of remote equipment, the remote equipment is used to control fire fighting from the main equipment. A firefighting wireless signal unit that receives a wireless signal through the distributor and transmits it to a wireless communication device (Daewon radio), and receives a firefighting wireless signal from the wireless communication device (Daewon radio) and transmits it to the main equipment 110 through the distributor. ; And a disaster broadcasting unit that receives and outputs a disaster broadcast signal from the terminal box or household terminal box of the transmission line equipment of the broadcasting common reception equipment, wherein the disaster broadcasting unit receives the disaster broadcast signal from the terminal box or household terminal box of the transmission line equipment. and a disaster broadcasting receiver that converts impedance 75 ohms (Ω) to impedance 50 ohms; An FM broadcasting signal filter that filters signals in the FM broadcasting signal band among the disaster broadcasting signals received by the disaster broadcasting receiver; A DMB broadcasting signal filter that filters signals in the terrestrial DMB broadcasting signal band among the disaster broadcasting signals received by the disaster broadcasting receiver; an amplifying unit that amplifies the FM broadcast signal and the terrestrial DMB broadcast signal output from the FM broadcast signal filter and the DMB broadcast signal filter; a signal level adjustment unit that adjusts the signal levels of the amplified FM broadcast signal and the terrestrial DMB broadcast signal and transmits them to an antenna; and an antenna that outputs the FM broadcasting signal and the terrestrial DMB broadcasting signal adjusted by the signal level adjustment unit to the outside.

According to the wireless communication auxiliary equipment system and remote equipment for transmitting disaster broadcasts using the terminal box or household terminal box of the transmission line equipment belonging to the broadcasting common reception equipment according to the present invention, the remote equipment of the wireless communication auxiliary equipment is the broadcasting common reception equipment. Disaster broadcasts are received directly from the terminal box and household terminal box of the transmission line equipment through the antenna reception equipment of the receiving equipment system and the head-end equipment of the central control room, and the disaster broadcasting signal is filtered, amplified, and level adjusted through the disaster broadcasting department and transmitted through the antenna. By outputting to the outside, disaster broadcasting can be transmitted without separately installing a disaster broadcasting relay device in wireless communication auxiliary equipment. Therefore, the cost and time required to build a wireless communication auxiliary equipment system that transmits disaster broadcasts can be reduced.

Figure 1 shows the configuration of a wireless communication auxiliary equipment system that transmits disaster broadcasts using the copper terminal box or household terminal box of the transmission line facility according to an embodiment of the present invention.
Figure 2 shows the connection structure of a wireless communication auxiliary equipment system that transmits disaster broadcasts using the copper terminal box or household terminal box of the transmission line facility according to an embodiment of the present invention.
Figure 3 is an example of a configuration diagram of a broadcasting joint reception equipment system that can be used in a wireless communication auxiliary equipment system that transmits disaster broadcasts using the copper terminal box or household terminal box of the transmission line facility according to an embodiment of the present invention. It represents.
Figure 4 is a block diagram showing the configuration of a remote equipment (RU) that constitutes a wireless communication auxiliary equipment system that transmits disaster broadcasts using the same terminal box or household terminal box of the transmission line facility according to an embodiment of the present invention.
Figure 5 shows an example of the implementation of a remote equipment (RU) that constitutes a wireless communication auxiliary equipment system that transmits disaster broadcasts using the terminal box or household terminal box of the transmission line facility according to an embodiment of the present invention. .
Figure 6 shows a disaster broadcasting unit that constitutes a remote equipment (RU) of a wireless communication auxiliary equipment system that transmits disaster broadcasts using the same terminal box or household terminal box of the transmission line equipment belonging to the broadcasting common reception equipment according to an embodiment of the present invention. The configuration is shown in a block diagram.
Figure 7a is a block diagram showing an example of the configuration of the main equipment that constitutes a wireless communication auxiliary equipment system that transmits disaster broadcasts using the copper terminal box or household terminal box of the transmission line facility according to an embodiment of the present invention.
Figure 7b shows an example of the implementation of the main equipment (MU) that constitutes a wireless communication auxiliary equipment system that transmits disaster broadcasts using the copper terminal box or household terminal box of the transmission line facility according to an embodiment of the present invention.
Figure 8 shows the clock used in the digital signal processing unit that constitutes the main equipment of Figures 7a and 7b.
FIG. 9 is a block diagram showing the configuration of an example of a digital signal processing unit that constitutes the main equipment (MU) of FIGS. 7A and 7B.
Figure 10 is a block diagram showing an example of the configuration of the firefighter direction input/output unit of the remote equipment (RU).

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the attached drawings. The embodiments described in this specification and the configurations shown in the drawings are only preferred embodiments of the present invention and do not represent the entire technical idea of the present invention, so various equivalents can be substituted for them at the time of filing the present application. It should be understood that there may be variations.

Figure 1 shows the configuration of a wireless communication auxiliary equipment system that transmits disaster broadcasts using the copper terminal box or household terminal box of the transmission line facility according to an embodiment of the present invention.

The wireless communication auxiliary equipment system that transmits disaster broadcasts using the terminal box of the transmission line facility or the household terminal box according to an embodiment of the present invention is used in buildings with basement floors where radio waves do not reach smoothly in the event of a disaster or in an emergency situation. Supports inter-floor communication through wireless communication devices between basement floors and between basement and ground floors, including main equipment (MU, 110), multiple remote equipment (RUs, 130, 131, 132, 133, 134, 135, 136), and at least one It includes distributors 120 and 125.

The main equipment (MU, 110) controls the wireless communication auxiliary equipment system overall, receives firefighting wireless signals from the wireless communication device (control station electrician) in the central control room, filters, amplifies, and adjusts the signal level to output a firefighting signal. do.

A plurality of remote devices (RUs, 130, 131, 132, 133, 134, 135, 136) are installed in the basement and upper floors where radio waves do not reach the building smoothly, and wireless communication on the basement or ground floor of the building It communicates with the device (Daewon radio) and the main equipment.

A plurality of remote devices (RUs, 130, 131, 132, 133, 134, 135, 136) include a fire radio signal unit and a disaster broadcasting unit. The firefighting wireless signal unit receives the firefighting wireless signal from the main equipment (110) through the distributor (120) and transmits it to the wireless communication device (Daewon radio (150, 152, 154, 156, 158)). Firefighting wireless signals are received from (150, 152, 154, 156, 158) and transmitted to the main equipment 110 through the distributor 120. At this time, a plurality of remote equipment (RUs, 130, 131, 132, 133, 134, 135, 136) is a disaster broadcasting unit that receives and outputs disaster broadcast signals from the terminal box of the transmission line equipment of the broadcasting common reception equipment or the household terminal box. Includes.

At least one distributor (120, 125) receives the fire signal from the main equipment (MU, 110) and distributes the fire signal to a plurality of remote equipment (RUs, 130, 131, 132, 133, 134, 135, 136). And, fire signals are received from a plurality of remote devices (RUs, 130, 131, 132, 133, 134, 135, 136) and transmitted to the main device (MU, 110).

The main equipment 110 and the distributor 120 can be connected with a coaxial cable. And the distributors 120 and 125 can be connected with the remote equipment 130, 131, 135, and 336 with a coaxial cable. Additionally, the distributor 125 Can be connected to the remote equipment (136) with a coaxial cable. In addition, the distributor (120, 125) and the Daewon radio (150, 152, 154, 156, 158) are connected to at least one remote equipment (130, 131, 132, 133, At least one remote device (130 and 132, 131 and 133) that can be connected to each other through (134, 135, 136) and disposed between the distributor (120, 125) and the Daewon radio (150, 152, 154, 156, 158) ) can be connected wirelessly or with a coaxial cable. Also, when there are multiple distributors, the distributors 120 and 125 can be connected with a coaxial cable. That is, the main equipment 110 and the remote equipment 130, 131, 135, 136. ) can be connected wired using a coaxial cable or connected wirelessly through an antenna to transmit and receive signals, and remote devices can also communicate with other remote devices by connecting with a coaxial cable or wirelessly.

Figure 2 shows the connection structure of a wireless communication auxiliary equipment system that transmits disaster broadcasts using the copper terminal box or household terminal box of the transmission line facility according to an embodiment of the present invention. Referring to Figure 2, the connection structure of this system allows the main equipment (MU, 110) to be connected to the distributor 120 through a coaxial cable. Additionally, the distributor 120 can be connected to remote equipment (RU, 130, 132) using a coaxial cable or wirelessly. Remote devices can be connected via coaxial cable or wirelessly.

The remote devices (930, 935) receive power from the power supplies (220, 225). The power supplies 220 and 225 can receive AC 220 V, convert it to DC 12 V, and output it. In addition, it has a built-in emergency battery (BATTERY), so if there is no AC 220 V input, the output voltage can be automatically converted to the emergency battery and output. The power output in this way is supplied to the remote equipment (130, 132) through a power cable.

Figure 3 is an example of a configuration diagram of a broadcasting joint reception equipment system that can be used in a wireless communication auxiliary equipment system that transmits disaster broadcasts using the copper terminal box or household terminal box of the transmission line facility according to an embodiment of the present invention. It represents.

Referring to FIG. 3, the broadcasting joint reception facility system includes an antenna reception facility 310, a headend facility 320, and a transmission line facility 330. The antenna reception facility 310 and the headend facility 320 ) and the transmission line facility 330 are connected by coaxial cables, and frequency bands are separated for downstream communication and upstream communication.

The broadcasting joint reception facility system may include broadcasting joint reception antenna facilities and comprehensive cable broadcasting premises transmission line facilities. Antenna equipment 310 refers to receiving antennas, lines, pipes, amplifiers, distributors, etc., and their auxiliary equipment installed to jointly receive terrestrial TV broadcasting, satellite broadcasting, FM radio broadcasting, and DMB broadcasting . In general, various broadcasting signals received from a common broadcasting reception antenna facility are converted, corrected, and amplified through the headend facility 320, so that multiple households can watch and listen to the broadcast at the same time through the transmission line facility 330. there is.

The antenna reception facility 310 may include a terrestrial wave reception antenna, a satellite broadcast reception antenna, a broadcast reception common terminal box, a CATV, etc. CATV is a two-way communication and can use the frequency band of 54~864MHz for downstream and 5.75~41.75MHz for upstream. The transmission line facility 230 may include a copper terminal box 332, a household terminal box 334, and a household outlet 336. Disaster broadcasts, for example, FM broadcast signals and DMB broadcast signals, can be output through the copper terminal box 332 and the household terminal box 334 of the transmission line facility 230.

Figure 4 shows an example of the configuration of a remote device (RU, 130) constituting a wireless communication auxiliary equipment system that transmits disaster broadcasts using the terminal box or household terminal box of the transmission line facility according to an embodiment of the present invention. is shown in a block diagram. And Figure 5 is an implementation of a remote equipment (RU) that constitutes a wireless communication auxiliary equipment system that transmits disaster broadcasts using the same terminal box or household terminal box of the transmission line equipment belonging to the broadcast common reception equipment according to an embodiment of the present invention. This shows an example.

The remote equipment 130 includes a disaster broadcasting unit 410, a firefighter direction input/output unit 420, a fire signal modulation unit 430, a control unit 440, an MU direction input/output unit 450, and a fire signal demodulation unit 460. This is done.

When the fire signal input/output unit 420 detects the signal received through the antenna as a wireless signal in the firefighting wireless communication frequency band of the Daewon radio 405, it amplifies the wireless signal in the detected firefighting wireless communication frequency band and applies a bandpass filter. Through this, unnecessary waves can be removed and output to the fire signal modulator 430. In addition, the fire signal input/output unit 420 receives the signal demodulated into a fire signal from the fire signal demodulator 460, amplifies it, removes unnecessary waves as necessary, and outputs it to the Daewon radio 405.

Figure 10 is a block diagram showing an example of the configuration of the firefighter direction input/output unit 420 of the remote equipment (RU). The firefighter direction input/output unit 420 may include an operation mode switch 1015, an antenna 1012, an f3 signal detection unit 1014, an amplifier 1016, and a band-pass filter 1018. Referring to FIG. 10, the operation mode switch 1015 represents the operation mode of the fire signal source direction input/output unit 420 and is switched between standby mode, reception mode, and transmission mode. The antenna 1012 receives a radio signal in the fire radio communication frequency band (f3) of the fire radio when the operation mode switch 1015 is in standby mode. The f3 signal detection unit 1014 detects a wireless signal in the firefighting wireless communication frequency band (f3) input through the antenna 1012. When a wireless signal in the fire-fighting wireless communication frequency band (f3) is detected by the f3 signal detection unit 1014, the operation mode switch 1015 is converted to the reception mode. When the operation switch mode 1015 is switched to the reception mode, the amplifier 1016 amplifies the detected wireless signal in the firefighting wireless communication frequency band (f3). The band-pass filter 1018 removes unwanted waves from the signal amplified by the amplifier 1016.

The firefighting signal demodulator 460 can receive the second frequency band signal from the MU direction input/output unit 450, remove unnecessary waves, demodulate it to the firefighting wireless communication frequency band, and output it to the firefighter direction input/output unit 420.

The firefighting signal modulator 720 receives the reference signal required for modulation/demodulation from the diplexer 740 and uses the reference signal to modulate the firefighting wireless signal in the firefighting wireless communication frequency band into a wireless signal in the first frequency band. You can.

The control unit 440 receives an FSK modem signal for serial communication with a plurality of remote devices from the MU direction input/output unit 450 and can perform serial communication with other remote devices through an output mode command.

Meanwhile, the remote device 130 operates in a switching manner and can operate in standby mode, reception mode, and transmission mode. In the standby mode, when a wireless signal in the fire wireless communication frequency band of the fire wireless device is input through the antenna, the firefighter direction input/output unit 420 detects the signal, switches the switch to reception mode, amplifies it at the Low Noise Amp, and passes the band. Unwanted waves may be removed from the filter (BPF) and transmitted to the fire signal modulator 430. The firefighting signal modulator 430 modulates the firefighting wireless signal in the firefighting wireless communication frequency band into a signal in the first frequency band using a PLL (Phase Locked Loop) Module, amplifies and filters it, and transmits it to the MU direction input/output unit 450. do. The MU direction input/output unit 450 outputs a wireless signal in the first frequency band and an FSK Modem signal for equipment information of the control unit 440 and sends them to the main equipment 110 through a coaxial cable.

The signal output from the main device 110 is the MU direction input/output unit 450 of the remote device 130, a wireless signal in the second frequency band, a reference signal required for modulation/demodulation, and FSK for serial communication with multiple remote devices. Modem signal can be input.

The reference signal required for modulation/demodulation is input to the PLL (Phase Locked Loop) Module of the fire signal modulator 430 and fire signal demodulator 460, and the FSK Modem signal operates by receiving an output mode command from the control unit 440. do. Unnecessary waves are removed from the wireless signal in the second frequency band by the firefighting signal demodulator 460 of the remote device 130 converted to transmission mode, and demodulated into a firefighting wireless signal in the firefighting wireless communication frequency band using the PLL Module. It is output to the firefighter direction input/output unit 420 and transmitted to the firefighter radio device (radio operator) through the antenna.

The disaster broadcasting unit 410 can be used as an underground remote device. When the disaster broadcasting department 410 receives FM radio and terrestrial DMB broadcasting signals output from the copper terminal box of the transmission line facility or the household terminal box, the disaster broadcasting department 410 converts the impedance of 75 ohms (Ω) to the impedance of 50 ohms, amplifies and adjusts the level to respond to the fire brigade. It is output to the direction input/output unit 420. Disaster broadcasting includes FM radio and terrestrial DMB broadcasting, and is received directly from the copper terminal box of the transmission line facility or the household terminal box. In disaster broadcasting, the disaster broadcasting signal is amplified through the disaster broadcasting unit 410, adjusted to an appropriate level, output to the input/output unit 420 in the direction of firefighters, and serviced underground through an antenna.

Figure 6 shows the configuration of the disaster broadcasting unit 410, which constitutes the remote equipment (RU) of the wireless communication auxiliary equipment system that transmits disaster broadcasts using the terminal box of the transmission line facility or the household terminal box according to an embodiment of the present invention. It is shown as a block diagram.

Referring to FIG. 6, the disaster broadcasting unit 410, which constitutes the remote equipment (RU) of the wireless communication auxiliary equipment system, includes a disaster broadcasting receiving unit 610, an FM broadcasting signal filter 620, a DMB broadcasting signal filter 625, and an amplification It includes a unit 630, a signal level adjustment unit 640, and an antenna 650.

The disaster broadcasting receiver 610 receives the disaster broadcasting signal from the copper terminal box 332 or the household terminal box 334 of the transmission line facility 330 and converts the impedance of 75 ohms (Ω) to an impedance of 50 ohms.

The FM broadcasting signal filter 620 filters signals in the FM broadcasting signal band among the disaster broadcasting signals received by the disaster broadcasting receiver 610. The DMB broadcasting signal filter 625 filters signals in the terrestrial DMB broadcasting signal band among the disaster broadcasting signals received by the disaster broadcasting receiver 610.

The amplifier 630 amplifies the FM broadcast signal and the terrestrial DMB broadcast signal output from the FM broadcast signal filter 620 and the DMB broadcast signal filter 625, and the FM signal amplifier 632 and the DMB signal amplifier ( 634) can be provided. The FM signal amplifier 632 amplifies the FM broadcast signal output from the FM broadcast signal filter 620. The DMB signal amplifier 634 amplifies the terrestrial DMB broadcast signal output from the DMB broadcast signal filter 625.

The signal level adjustment unit 640 adjusts the signal level of the amplified FM broadcast signal and the terrestrial DMB broadcast signal and transmits it to the antenna 650, and includes an FM signal level adjustment unit 642 and a DMB signal level adjustment unit 644. You can. The FM signal level adjustment unit 642 adjusts the signal level of the amplified FM broadcast signal and transmits it to the antenna 650. The DMB signal level adjustment unit 644 adjusts the signal level of the amplified terrestrial DMB broadcast signal and transmits it to the antenna 650.

The antenna 650 outputs the FM broadcast signal and the terrestrial DMB broadcast signal adjusted by the FM signal level adjustment unit 640 and the DMB signal level adjustment unit 645 to the outside with the converted impedance of 50 ohms .

Power for the disaster broadcasting department 410 can be supplied from the power supplies 220 and 225. The power supplies 220 and 225 can receive AC 220 V, convert it to DC 12 V, and output it. In addition, it has a built-in emergency battery (BATTERY), so if there is no AC 220 V input, the output voltage can be automatically converted to the emergency battery and output. The power output in this way can be supplied to the remote equipment (130, 132) through a power cable.

Meanwhile, the main equipment (MU, 110) can receive a firefighting wireless signal from a wireless communication device (control station electricity) in the central control room and output it by removing frequency modulation and noise. When transmitting and receiving firefighting signals through a remote device and a distributor, the main device 110 can communicate with the remote device by modulating the transmitting and receiving frequencies differently and removing noise from the transmitting and receiving signals. More specifically, the main equipment 110 modulates the signal in the first frequency band input from a plurality of remote equipment (RUs, 130, 132, 134, 136, 138) into a firefighting wireless signal in the firefighting wireless communication frequency band and transmits it to the control room. It is output by a radio, and the fire-fighting wireless signal in the fire-fighting wireless communication frequency band is modulated into a wireless signal in the second frequency band and output to the remote equipment (130, 132, 134, 136, 138), and the remote equipment (130, 132, 134) , 136, 138) and the second frequency band signal to be output to the plurality of remote devices (130, 132, 134, 136, 138) are digitally filtered to remove noise.

Multiple remote devices (RUs, 130, 132, 134, 136, 138) are installed in the basement and upper floors of the building where radio waves do not reach smoothly, and wireless communication devices (Daewon radio, 152) located in the basement or ground floor of the building. , 154, 156, 158, 159) and the main equipment 110 can be communicated at different transmission and reception frequencies.

Another example of the main equipment 110 that can be used in the present invention will be described. Figure 7a is a block diagram showing an example of the configuration of the main equipment that constitutes a wireless communication auxiliary equipment system that transmits disaster broadcasts using the terminal box or household terminal box of the transmission line facility according to an embodiment of the present invention, and Figure 7b is a block diagram showing the configuration of the main equipment. This shows an example of the implementation of the main equipment (MU) that constitutes a wireless communication auxiliary equipment system that transmits disaster broadcasts using the copper terminal box or household terminal box of the transmission line facility according to an embodiment of the design.

The configuration and operation of the main equipment 110 will be described with reference to FIGS. 7A and 7B. The main equipment 110 includes an RU signal receiving unit 710, a digital signal processing unit 720, an f3 signal demodulating unit 730, an f3 signal transmitting and receiving unit 740, an f2 signal modulating unit 750, and a RU signal transmitting unit 760. It can be done including.

The RU signal receiver 710 receives the first frequency (f1) band signal of the remote device output from the plurality of remote devices 130 and received through the distributor 120.

The digital signal processing unit 720 removes noise from the first frequency (f1) band signal received from the RU signal receiving unit 710 and the second frequency (f2) band signal to be transmitted to the remote device 130. The f3 signal demodulator 730 modulates the first frequency (f1) band signal from which noise has been removed by the digital signal processor 720 into a firefighting wireless communication frequency (f3) band signal.

The f3 signal transmitting and receiving unit 740 transmits the signal in the firefighting wireless communication frequency (f3) band output from the f3 signal demodulator 730 to the control station 112. The f2 signal modulator 750 modulates the signal in the fire-fighting wireless communication frequency (f3) band output from the f3 signal demodulator 730 into the second frequency (f2) band signal and transmits it to the digital signal processor 720. do.

The RU signal transmitter 760 outputs the second frequency (f2) band signal from which noise has been removed by the digital signal processor 720 to the distributor 120 to transmit it to the remote device 130.

Referring to FIG. 7b, the signal in the f1 band transmitted from the remote device (RU) has unwanted waves removed from the band-pass filter (BPF) of the RU signal receiver 710, which is an input amplifier circuit, and is amplified at the Low Noise Amp to become a digital signal. It is transmitted to the processing unit 720. The digital signal processing unit 720 converts the analog signal in the f1 band into a digital signal, removes noise and adjusts the level through a programmed digital logic filter. The digital signal is converted into an analog signal and transmitted to the f3 signal demodulator 730, which demodulates it into a firefighting signal. The f3 signal demodulator 730 demodulates the signal in the f1 band into a firefighting wireless signal in the firefighting wireless communication frequency band using a PLL module. The firefighting wireless signal in the demodulated firefighting wireless communication frequency band can be transmitted to the wireless device 112 in the central control room using an antenna through the f3 signal transmitter/receiver 740, and the firefighting wireless signal in the firefighting wireless communication frequency band can be transmitted from the wireless device in the central control room. Receive wireless signals. The firefighting wireless signal in the firefighting wireless communication frequency band transmitted through the f3 signal demodulator 730 or the f3 signal transmitter/receiver 740 is modulated into a signal in the f2 band using the PLL Module in the f2 signal modulator 750 and passes the band. Unwanted waves are removed by the filter (BPF) and then transmitted back to the digital signal processing unit 720. The digital signal processing unit 720 converts the analog signal in the f2 band into a digital signal, removes noise through a programmed digital logic filter, adjusts the level, converts it back into an analog signal, and transmits it to the RU signal transmission unit 760. The RU signal transmitter 760 outputs a wireless signal in the f2 band, a reference signal required for modulation/demodulation, and an FSK Modem signal for serial communication with multiple remote devices (RU) to the remote device.

Figure 8 shows the clock used in the digital signal processing unit 720 that constitutes the main equipment of Figures 7a and 7b, and is used on a digital board to prevent the fire signal f1 band and f2 band from influencing each other. Use a clock that FIG. 9 is a block diagram showing the configuration of an example of the digital signal processing unit 720 that constitutes the main equipment (MU) of FIGS. 7A and 7B.

Referring to FIGS. 8 and 9, the digital signal processing unit 720 may include a first ADC (910), a second ADC (915), a filter unit (900), a first DAC (950), and a second DAC (955). there is. The first ADC 910 converts the first frequency band (f1) signal into a first digital signal. The second ADC 915 converts the second frequency band (f2) signal into a second digital signal.

The filter unit 900 filters the first digital signal and the second digital signal. The filter unit 900 receives location information according to the area where the main equipment (MU) is located, and converts the first and second digital signals output from the first ADC 910 and the second ADC 915 into a variable PLL ( It is filtered down to a baseband signal corresponding to the location information using a phase-locked loop (960), and then converted back into a digital signal using a variable PLL (960). The filter unit 900 includes a first demodulator 920, a second demodulator 925, a first filter 930, a second filter 935, a first modulator 940, and a second modulator 945. ) and a variable PLL (960).

The first DAC 950 converts the first digital signal filtered by the filter unit 900 into a first frequency band (f1) signal. The second DAC 955 converts the second digital signal filtered by the filter unit 900 into a second frequency band (f2) signal.

Referring to Figure 9, the signal in the f1 band is converted from an analog signal to a digital signal using the first ADC (910). The converted digital signal is lowered to a baseband signal by the first demodulator 920. The frequency changed to the baseband is set to a specific frequency based on the input location information. At this time, location information may be set automatically by GPS or entered manually. For example, if the information entered in the location information is for the Seoul area (e.g., 449 MHz), the variable PLL is set to 449 MHz, and if the location information is for the Busan area (e.g., 444 MHz), the variable PLL is set to fit the Busan area. The method is to set it to 444MHz. This is because the frequency band used in firefighting is 443~451MHz and channels of different frequencies are often used in each region, a region setting function was implemented. The signal lowered to the baseband is transmitted to the first modulator 940 after passing only the desired signal using the first filter 630. The first modulator 940 converts the baseband signal back into a digital signal using the frequency used in the first demodulator 920, and the digital signal is converted into an analog signal by the first DAC 950. Since the signal in the f2 band operates in the same process as the signal in the f1 band described above, redundant description will be omitted.

The present invention has been described with reference to the embodiments shown in the drawings, but these are merely exemplary, and those skilled in the art will understand that various modifications and other equivalent embodiments are possible therefrom. Therefore, the true scope of technical protection of the present invention should be determined by the technical spirit of the attached registration claims.

110: Main equipment (MU)
112: Wireless device in the central control room (control room radio)
120, 125: distributor
130, 131, 132, 134, 135, 136: Remote equipment
140: Transmission line equipment of broadcasting joint reception equipment
150, 152, 154, 156, 158: Wireless communication device (Daewon radio)
220, 225: RU power supply/battery
310: Antenna receiving equipment
320: Head end equipment
330: Transmission line equipment
332: copper terminal box
334: household terminal box
336: household outlet
410: Disaster Broadcasting Department
420: Firefighter direction input/output unit
430: Fire signal modulation unit
440: control unit
450: MU direction input/output unit
460: Fire signal demodulator
610: Disaster broadcasting reception unit
620: FM broadcasting signal filter
625: DMB broadcasting signal filter
630: Amplification unit
632: FM signal amplification unit
634: DMB signal amplification unit
640: Level adjustment unit
642: FM signal level adjustment unit
644: DMB signal level adjustment unit
650: Antenna
710: RU signal reception unit
720: Digital signal processing unit
730: f3 signal demodulator
740: f3 signal transmitting and receiving unit
750: f2 signal modulation unit
1012: Antenna
1014: f3 signal detection unit
1015: Operation mode switch
1016: amplifier
1018: Bandpass filter

Claims (5)

delete In a wireless communication auxiliary equipment system that supports inter-floor communication through wireless communication devices between the basement floors of a building or between the basement floor and the ground floor in the event of a disaster or in an emergency situation,
Main equipment (MU) that generally controls the wireless communication auxiliary equipment system, receives fire-fighting wireless signals from wireless communication devices (control equipment) in the central control room, filters, amplifies, and adjusts the signal level to output fire-fighting signals;
A plurality of remote equipment (RUs) installed in the basement and upper floors of the building where radio waves do not reach smoothly, and communicating with the main equipment and a wireless communication device (Daewon radio) located on the basement or ground floor of the building; and
At least one distributor receives the fire signal from the main equipment and distributes the fire signal to the plurality of remote equipment, and receives the fire signal from the plurality of remote equipment and transmits it to the main equipment,
The remote equipment is
A firefighting wireless signal is received from the main equipment through the distributor and transmitted to a wireless communication device (Daewon radio), and a firefighting wireless signal is received from the wireless communication device (Daewon radio) and transmitted to the main equipment through the distributor. signal department; and
It includes a disaster broadcasting unit that receives and outputs disaster broadcasting signals from the broadcasting joint reception equipment,
The disaster broadcasting unit includes a disaster broadcasting receiving unit that receives a disaster broadcasting signal from the terminal box of the transmission line facility or a household terminal box and converts the impedance from 75 ohms to 50 ohms;
An FM broadcasting signal filter that filters signals in the FM broadcasting signal band among the disaster broadcasting signals received by the disaster broadcasting receiver;
A DMB broadcasting signal filter that filters signals in the terrestrial DMB broadcasting signal band among the disaster broadcasting signals received by the disaster broadcasting receiver;
an amplifier that amplifies the FM broadcast signal and the terrestrial DMB broadcast signal output from the FM broadcast signal filter and the DMB broadcast signal filter;
a signal level adjustment unit that adjusts the signal levels of the amplified FM broadcasting signal and the terrestrial DMB broadcasting signal and transmits them to an antenna;
Disaster broadcasting using the copper terminal box or household terminal box of the transmission line facility, characterized in that it includes an antenna that mixes the FM broadcast signal and the terrestrial DMB broadcast signal adjusted by the signal level adjustment unit with the firefighting wireless signal and outputs them to the outside. A wireless communication auxiliary equipment system that transmits. According to paragraph 2,
The main equipment (MU) receives firefighting radio signals from the wireless communication device (control station electrician) in the central control room, removes frequency modulation and noise, and outputs them.
The plurality of remote equipment (RUs) is a terminal box or household terminal box of the transmission line equipment, characterized in that it communicates at different transmission and reception frequencies with the main equipment and a wireless communication device (Daewon radio) located on the basement or ground floor of the building. A wireless communication auxiliary equipment system that transmits disaster broadcasts using . In a wireless communication auxiliary equipment system that supports inter-floor communication through wireless communication devices between the basement floors of a building or between the basement floor and the ground floor in the event of a disaster or in an emergency situation,
Main equipment (MU) that generally controls the wireless communication auxiliary equipment system, receives fire-fighting wireless signals from wireless communication devices (control equipment) in the central control room, filters, amplifies, and adjusts the signal level to output fire-fighting signals;
A plurality of remote equipment (RUs) installed in the basement and upper floors of the building where radio waves do not reach smoothly, and communicating with the main equipment and a wireless communication device (Daewon radio) located on the basement or ground floor of the building; and
At least one distributor receives the fire signal from the main equipment and distributes the fire signal to the plurality of remote equipment, and receives the fire signal from the plurality of remote equipment and transmits it to the main equipment,
The remote equipment is
A firefighting wireless signal is received from the main equipment through the distributor and transmitted to a wireless communication device (Daewon radio), and a firefighting wireless signal is received from the wireless communication device (Daewon radio) and transmitted to the main equipment through the distributor. signal department; and
It includes a disaster broadcasting unit that receives and outputs disaster broadcast signals from a broadcasting joint reception facility,
The main equipment and the distributor are connected with a coaxial cable,
The distributor is connected to at least one remote device via a wireless or coaxial cable,
The distributor and the Daewon radio are connected to each other through at least one remote device, and at least one remote device disposed between the distributor and the Daewon radio is connected by a wireless or coaxial cable,
When the at least one distributor is plural, a wireless communication auxiliary equipment system that transmits an emergency broadcast using a copper terminal box of a transmission line facility or a household terminal box, characterized in that the distributors are connected by a coaxial cable. In the event of a disaster or in an emergency situation, a wireless communication auxiliary equipment system that supports inter-floor communication through wireless communication devices between the basement floors of a building with basement floors where radio waves cannot reach easily, and between the basement floor and the ground floor, is provided as the main equipment and multiple remote equipment. When done, the remote device
A firefighting wireless signal unit that receives a firefighting wireless signal from the main equipment and transmits it to a wireless communication device (Daewon radio), and receives a firefighting wireless signal from the wireless communication device (Daewon radio) and transmits it to the main equipment; and
It includes a disaster broadcasting unit that receives and outputs a disaster broadcast signal from the terminal box of the transmission line equipment of the broadcasting common reception equipment or the household terminal box,
The Disaster Broadcasting Department
A disaster broadcasting receiver that receives a disaster broadcasting signal from the terminal box of the transmission line facility or a household terminal box and converts the impedance of 75 ohms to an impedance of 50 ohms;
An FM broadcasting signal filter that filters signals in the FM broadcasting signal band among the disaster broadcasting signals received by the disaster broadcasting receiver;
A DMB broadcasting signal filter that filters signals in the terrestrial DMB broadcasting signal band among the disaster broadcasting signals received by the disaster broadcasting receiver;
an amplifier that amplifies the FM broadcast signal and the terrestrial DMB broadcast signal output from the FM broadcast signal filter and the DMB broadcast signal filter;
a signal level adjustment unit that adjusts the signal levels of the amplified FM broadcasting signal and the terrestrial DMB broadcasting signal and transmits them to an antenna; and
A wireless communication assistant for transmitting disaster broadcasts using a terminal box of a transmission line facility or a household terminal box, characterized in that it includes an antenna that outputs the FM broadcast signal and the terrestrial DMB broadcast signal adjusted by the signal level adjustment unit to the outside. Remote equipment in facility systems.