KR950005701Y1 - Relay for multi channel wireless broadcast underground - Google Patents

Relay for multi channel wireless broadcast underground Download PDF

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Publication number
KR950005701Y1
KR950005701Y1 KR92013749U KR920013749U KR950005701Y1 KR 950005701 Y1 KR950005701 Y1 KR 950005701Y1 KR 92013749 U KR92013749 U KR 92013749U KR 920013749 U KR920013749 U KR 920013749U KR 950005701 Y1 KR950005701 Y1 KR 950005701Y1
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antenna
receiver
amplifier
wba
radio
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KR92013749U
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Korean (ko)
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KR940004487U (en
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양영석
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앙영석
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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B7/00Radio transmission systems, i.e. using radiation field
    • H04B7/14Relay systems
    • H04B7/15Active relay systems
    • H04B7/155Ground-based stations
    • H04B7/15528Control of operation parameters of a relay station to exploit the physical medium
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B7/00Radio transmission systems, i.e. using radiation field
    • H04B7/24Radio transmission systems, i.e. using radiation field for communication between two or more posts
    • H04B7/26Radio transmission systems, i.e. using radiation field for communication between two or more posts at least one of which is mobile
    • H04B7/2603Arrangements for wireless physical layer control
    • H04B7/2606Arrangements for base station coverage control, e.g. by using relays in tunnels

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Radio Relay Systems (AREA)

Abstract

내용 없음.No content.

Description

다찬넬 지하 무선방송 중계기DACHANEL Underground Wireless Repeater

제 1 도는 본 고안의 안테나 수신부 구성도.1 is a configuration diagram of an antenna receiver of the present invention.

제 2 도는 본 고안의 수신기 모니터 구성도.2 is a receiver monitor configuration of the present invention.

제 3 도는 본 고안의 안테나 분배기 구성도.3 is a configuration diagram of an antenna divider of the present invention.

제 4 도는 본 고안의 AM 프리증폭기 구성도.4 is a schematic diagram of an AM preamplifier of the present invention.

제 5 도는 본 고안의 FM 프리증폭기 구성도.5 is a schematic diagram of an FM preamplifier of the present invention.

제 6 도는 본 고안의 AM/FM 전력증폭기 구성도.6 is a schematic diagram of an AM / FM power amplifier of the present invention.

제 7 도는 종래기술의 다찬넬 지하무선 방송중계기 개략도.7 is a schematic diagram of a Dahnnell underground wireless broadcast repeater of the prior art.

* 도면의 주요부분에 대한 부호의 설명* Explanation of symbols for main parts of the drawings

A : 수신안테나 MB : 정합기A: receiving antenna MB: matching device

WBA1, WBA2, WBA3: 광대역 증폭기 ARR : AM 라디오 수신기WBA 1 , WBA 2 , WBA 3 : Wideband Amplifiers ARR: AM Radio Receiver

FRR : FM 라디오 수신기 MAT : 정합기FRR: FM Radio Receiver MAT: Matching Machine

STR : 분배기 A-BPF, F-BPF : 대역필터STR: Splitter A-BPF, F-BPF: Bandpass Filter

ATT1, ATT2: 레벨조정기 A-AMP : 전력증폭기ATT 1 , ATT 2 : Level regulator A-AMP: Power amplifier

A-PAMP, F-PAMP : 프리증폭기 SP : 스피커A-PAMP, F-PAMP: Preamplifier SP: Speaker

본 고안은 터널이나 지하 건축구조물등과 같이 외부와 차폐되어 전파 도달이 불가능한 장소에 설치하여 각 방송(AM, FM)을 자유롭게 청취할 수 있도록 해주는 라디오방송중계를 위한 무선방송 중계기에 대한 것으로, 본원출원인의 선출원 특허 제 89-8473호의 개량에 관한 것이다.The present invention relates to a radio broadcasting repeater for radio broadcasting relay that allows the user to listen to each broadcasting (AM, FM) freely by installing in a place where it is impossible to reach radio waves such as a tunnel or underground building structure. The present invention relates to an improvement of Applicant's prior application patent No. 89-8473.

일반적으로 터널이나 광산의 갱도, 지하상가 또는 지하주차장등의 전파도달이 불가능한 지역이나 지형적인 난청지역에서는 지표나 건축구조 자재의 전파흡수로 인해 전파의 부재 또는 전계강도의 약화로 라디오를 자유로이 청취할 수 없었다.In general, in areas where radio waves cannot be reached, such as tunnels, mine tunnels, underground malls, or underground parking lots, or in geographically deaf areas, the radio waves can be freely listened to due to the absence of radio waves or weakened electric field strength due to the absorption of surface or building structure materials. Could not.

그리하여 각 방송국에서는 현재 막대한 설치비 및 운영비를 들여 원거리에서의 방송 서어비스 가청지역 확대를 위해 방송난청지구나 전파불감지역에 대한 송신중계소를 설치 운영하고 있는 실정이나 전술한 바와같은 지하구조물 내에서의 방송 서어비스는 아직도 제대로 이루어지지 않고 있음이 현실적인 것이다.Thus, each broadcasting station is currently operating a broadcasting relay station for the broadcasting hearing loss zone or radio wave dead zone in order to expand the broadcasting service area at a long distance by enormous installation and operation cost, or the broadcasting service in the underground structure as described above. It is realistic that it is still not done properly.

이에, 본원출원인은 이러한 특수환경 지역내에서도 여러개의 방송을 하나의 방송중계기로 다찬넬화하여 동시 송신중계가 가능하도록 한 무선방송 중계기를 선출원바 있으나, 동장치의 경우는 구조가 매우 복잡하여 유지관리가 매우 어려운 문제점이 있으며, 또한 방송국의 신, 증설시 추가장치가 요구되는 등 경제적인 손실과 번거로움이 있었다.Therefore, the applicant of the present application has elected a wireless broadcasting repeater which enables simultaneous transmission relaying by multiplexing multiple broadcasts into one broadcasting repeater even in such a special environment area, but in case of the device, the structure is very complicated and maintained. There is a very difficult problem, and there was also an economic loss and hassle, such as the need for additional equipment when adding and expanding the broadcasting station.

즉, 제 7 도에서 볼 수 있듯이, 선출원된 종래기술에서는 수신안테나 (A)를 통해서 전달된 전파신호가 안테나 분배증폭기(1)를 통해서 안테나분배기(2)로 인입된다. 상기 안테나분배기(2)로 인입된 수신세력은 임피던스 정합을 이루면서 각 해당 수신기의 수신 주파수에 동조되는 출력으로서 해당 수신기의 안테나 입력(a1-a10)으로 분배 공급된다.That is, as shown in FIG. 7, in the prior art, the radio wave signal transmitted through the reception antenna A is introduced into the antenna distributor 2 through the antenna distribution amplifier 1. The reception forces introduced into the antenna divider 2 are distributed to the antenna inputs a 1-a 10 of the corresponding receiver as outputs tuned to the reception frequencies of the corresponding receivers while achieving impedance matching.

안테나 분배기(2)의 AM출력(a1-a7)과 FM출력(a8-a10)은 수신기에 전달되는데, AM은 스트레이트 고주파증폭기(3)로 필요한 대역특성을 갖는 출력레벨까지 고주파 증폭되고, FM은 스트레이트 고주파증폭기(22)에 의해서 필요대역만 통과되면 일정 레벨로 증폭된다.The AM outputs (a 1-a 7 ) and the FM outputs (a 8-a 10 ) of the antenna divider (2) are delivered to the receiver, where the AM is a high frequency amplification up to the output level with the required band characteristics by the straight high frequency amplifier (3). Then, the FM is amplified to a predetermined level by passing the necessary band by the straight high frequency amplifier 22.

본 고안에서는 선출원 특허 제 89-8473호의 경우에서와 같이 여러방송을 한대의 중계기로 다찬넬화하여 여러방송의 수신 및 송신중계를 위해 다찬넬 안테나 분배기와 다찬넬 안테나 정합 결속기를 이용하여 한개의 송,수신 안테나로써 개개의 각 방송전파를 수신 및 송신토록 함은 물론 광대역 증폭방식을 채용하여 각 방송(AM, FM)대역내에서 방송국 신,증설시 추가투자와 조정없이도 자유롭게 방송을 청취할 수 있도록 하고, 시스템 구성을 간단히 하여 지역에 관계없이 호환성이 유지되도록 한 것으로, 이하 본 장치를 첨부예시 도면에 의거 상세히 설명하면 다음과 같다.In the present invention, as in the case of patent application No. 89-8473, multiple broadcasts are channeled into a single repeater, and a single channel is used by using a Chanel antenna splitter and a Chanel antenna matching binder to receive and transmit multiple broadcasts. In addition to receiving and transmitting each individual broadcast wave as a receiving antenna, it also adopts a broadband amplification method so that users can freely listen to the broadcasts without additional investment and adjustment when adding or expanding broadcasting stations within each broadcasting (AM, FM) band. In addition, the system configuration is simplified to maintain compatibility regardless of region. Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

본 장치는 안테나 수신부와 터널등의 지하구조물내 송신케이블(AM, FM)로 광대역을 송신하는 주장치로 구성된다.This apparatus is composed of a main unit for transmitting a broadband through the transmission cable (AM, FM) in an underground structure such as an antenna receiver and a tunnel.

상기 안테나 수신부는 제 1 도와 같이 수신안테나(A)를 통해 수신된 여러 방송전파를 임피던스정합(매칭)시키는 정합기(MB)와 광대역 증폭기(WBA1)로 구성되어 있으며, 주장치는 안테나 분배기와 수신기 모니터 및 프리증폭기와 전력증폭기로 구성되어 있다.The antenna receiver comprises a matcher (MB) and a broadband amplifier (WBA 1 ) for impedance matching (matching) various broadcast waves received through the reception antenna A as shown in FIG. It consists of a monitor, preamplifier and power amplifier.

주장치를 구성하는 수신기모니터는 제 2 도와 같이 AM 라디오수신기(ARR)와 FM 라디오수신기(FRR)로 구성된다. 안테나 분배기는 제 3 도와 같이 정합기(MAT)와 분배기(STR) 및 AM대역 필터(A-BPF)와 FM 대역필터(F-BPF)로 구성되며, 안테나 분배기를 중심으로 상,하측에 설치되는 AM프리증폭기(A-PAMP)는 광대역증폭기(WBA2)와 레벨조정기(ATT1) 및 자동이득 조절회로(AGC)로 구성되며, FM 프리증폭기(F-PAMP)는 레벨조정기(ATT2)와 광대역증폭기(WBA3)로 구성된다.The receiver monitor constituting the assertion is composed of an AM radio receiver (ARR) and an FM radio receiver (FRR) as shown in FIG. The antenna splitter is composed of a matcher (MAT), a splitter (STR), an AM band filter (A-BPF) and an FM band filter (F-BPF) as shown in FIG. 3. AM preamplifier (A-PAMP) is composed of wide band amplifier (WBA 2 ), level adjuster (ATT 1 ) and automatic gain control circuit (AGC). FM preamplifier (F-PAMP) consists of level adjuster (ATT 2 ) and It consists of a wideband amplifier (WBA 3 ).

그리고, 안테나 분배기를 중심으로 상,하측에 설치되는 전력증폭기(P-AMP)는 광대역 전력증폭기와 저역필터 및 출력검출회로등으로 구성된다.In addition, a power amplifier (P-AMP) installed in the upper and lower sides of the antenna splitter is composed of a broadband power amplifier, a low pass filter, an output detection circuit, and the like.

이와같이 구성된 본 고안의 작용효과를 설명하면, 지하구조물의 외부에 설치된 한개의 수신안테나(A)를 통해 수신된 여러전파 신호는 안테나 수신부를 구성하는 정합기(MB)에서 임피던스정합(매칭)되고 광대역 증폭기(WBA1)를 경유하면서 AM 방송전파로 부터 FM 방송전파까지의 미약한 전파신호가 증폭되어 주장치의 일구성 요소인 안테나 분배기로 인입된다.When explaining the operation effect of the present invention configured as described above, multiple radio signals received through one receiving antenna (A) installed on the outside of the underground structure is impedance matched (matched) and wideband in the matching unit (MB) constituting the antenna receiver A weak radio signal from the AM broadcast wave to the FM broadcast wave is amplified by the amplifier WBA 1 and introduced into an antenna divider which is a component of the main unit.

안테나 분배기로 유입된 신호는 제 3 도의 분배기(STR)에서 AM 신호와 FM 신호가 분리된다.The signal introduced into the antenna splitter is separated from the AM signal and the FM signal in the splitter STR of FIG.

이렇게 2분배된 AM과 FM 방송신호는 각각 대역필터(A-BPF)(F-BPF)를 통과하면서 불필요한 대역 혼입신호가 차단되고 필요 주파수(500∼1.7kHz와 87∼110MHz)만이 각각 그의 AM 출력단 및 FM 출력단으로 출력된다.The AM and FM broadcast signals thus divided are passed through the band filters (A-BPF) and F-BPF, respectively, and unnecessary band mixed signals are cut off, and only the required frequencies (500 to 1.7 kHz and 87 to 110 MHz) are respectively displayed at the AM output stages. And an FM output terminal.

안테나 분배기를 통해 출력된 각 AM 신호 또는 FM 신호는 각 해당 수신기의 수신주파수에 동조되는 출력으로 입력되어 제 2 도의 수신기 모니터를 구성하는 AM 라디오수신기(ARR) 또는 FM 라디오수신기(FRR)로 입력 분배 공급되어진다.Each AM signal or FM signal output through the antenna splitter is input to an output tuned to the reception frequency of each corresponding receiver and distributed to the AM radio receiver (ARR) or FM radio receiver (FRR), which constitutes the receiver monitor of FIG. Supplied.

제 4 도의 AM 프리증폭기(A-PAMP)로 들오온 AM 신호는 레벨조정기(ATT1)에 의해 적절레벨로 조정되고 광대역 증폭기(WBA2)내 자동이득 조절회로(AGC)를 경유하면서 방송전파가 강한 지역이나 약한 지역에서도 양질의 방송청취가 되도록 일정한 출력을 유지하게 되는 것이며, 동시에 필요한 대역특성을 갖는 출력레벨까지 고주파 증폭되어 출력된다.The AM signal introduced into the AM preamplifier (A-PAMP) of FIG. 4 is adjusted to an appropriate level by the level adjuster ATT 1 , and the broadcast signal is transmitted while passing through the automatic gain control circuit AGC in the wideband amplifier WBA 2 . It maintains a constant output to ensure a good broadcast listening even in a strong area or a weak area, and at the same time, it is amplified and output to an output level having a required band characteristic.

또한, 제 5 도의 FM 프리증폭기(F-PAMP)로 들어온 FM 신호도 전기한 AM 신호와 마찬가지로 레벨조정기(ATT2)와 광대역 증폭기(WBA3)를 경유하면서 방송전파가 강한 지역에서나 약한 지역에서도 양질의 방송청취가 이루어지도록 그 출력을 안정하게 유지시켜 출력하게 되는 것이다.In addition, the FM signal coming into the FM preamplifier (F-PAMP) of FIG. 5 is similar to the AM signal, which is good even in a region with strong or weak broadcast signals through the level adjuster (ATT 2 ) and the broadband amplifier (WBA 3 ). The output is kept stable so that the broadcast of the listening is made.

이와같이 충분히 증폭되어진 수신방송전파신호(RF)는 도시되지 않은 선택스위치회로 및 여진증폭기에 의해 다시 스트레이트 고주파 증폭되어져 제 6 도의 전력증폭기(P-AMP)에 공급되어 전력 증폭된 여러 고유주파수의 출력신호가 중계를 요하는 지역에 설치된 한개의 송신 루프 안테나에 의해 전파 복사되어지는 것이다.The fully-received broadcast radio signal RF is amplified by a high frequency straight amplification by a selector switch circuit and an excitation amplifier (not shown) and supplied to the power amplifier P-AMP of FIG. It is radiated and radiated by a single transmit loop antenna installed in an area that needs to be relayed.

이상과 같이 본 고안은 방송불감지역에 다찬넬 방송을 동시 중계할 수 있도록 하되, 광대역 증폭방식을 사용하여 불필요한 주파수대역의 혼입신호를 차단시켜 고감도의 방송청취를 가능케 하고, 시스템 구성을 간단화함으로서 유지관리를 용이하게 하고, 또한 각 방송 대역내에서 방송국의 신, 증설시 추가투자와 조정없이도 자유롭게 방송을 청취할 수 있도록 하였으며, 송신출력을 검파 선택하여 한개의 모니터 스피커로 다찬넬 방송되는 신호의 질을 감시 관리할 수 있는 모니터 기능을 수행할 수 있음은 물론, 특히 AM, FM 각 고주파 출력에 대하여 임피던스 정합을 행한 후 AM 및 FM 유도선을 통하여 지하구조물내로의 송신이 이루어지도록 함으로써 전파도달이 불가한 지역에서 각 방송(AM, FM)을 자유롭게 청취할 수 있도록 해 줄 수가 있게 되는 것이다.As described above, the present invention enables simultaneous broadcasting of the channel broadcasting in a broadcast dead zone, but by using a broadband amplification method to block unwanted signals in a mixed frequency band to enable high-sensitivity broadcasting and simplify the system configuration. It is easy to maintain, and it is possible to listen to the broadcasting freely without additional investment and adjustment of broadcasting station within each broadcasting band without any additional investment and adjustment. Not only can it monitor and manage the quality, but also the impedance matching of AM and FM high frequency output, especially after it is transmitted to the underground structure through AM and FM induction line, It will be possible to freely listen to each broadcast (AM, FM) in an impossible area. .

Claims (1)

수신안테나(A)로 수신된 전파를 안테나 수신부와 안테나 분배기를 통해 AM 및 FM 신호를 정합, 분류, 증폭 출력시켜 전파도달 불가지역에 송신되도록 하는 무선방송 중계기에 있어서, 정합기(MB)와 광대역 증폭기(WBA1)로 구성되는 안테나 수신부와, AM 라디오 수신기(ARR)와 FM 라디오수신기(FRR)로 구성되는 수신기 모니터와, 정합기(MAT)와 분배기(STR) 및 AM 대역필터(A-BPF)와 FM 대역필터(F-BPF)로 구성되는 안테나 분배기와, 광대역 증폭기(WBA2)와 레벨조정기(ATT1)로 구성되는 AM 프리증폭기(A-PAMP)와, 레벨조정기(ATT2)와 광대역 증폭기(WBA3)로 구성되는 FM 프리증폭기(F-PAMP)와, 광대역 전력증폭기와 저역필터 및 출력 검출회로로 구성되는 전력증폭기(P-AMP)를 구비시켜서 이루어진 다찬넬 지하 무선방송중계기.In the wireless broadcasting repeater that matches, classifies, amplifies and outputs AM and FM signals through the antenna receiver and the antenna splitter, the radio wave received by the reception antenna A is transmitted to an area where radio waves cannot be reached. An antenna receiver comprising an amplifier (WBA 1 ), a receiver monitor comprising an AM radio receiver (ARR) and an FM radio receiver (FRR), a matcher (MAT), a divider (STR), and an AM band filter (A-BPF). ) And an AM preamplifier (A-PAMP) consisting of a wideband amplifier (WBA 2 ) and a level adjuster (ATT 1 ), a level adjuster (ATT 2 ), A multichannel underground wireless broadcast repeater comprising an FM preamplifier (F-PAMP) consisting of a wideband amplifier (WBA 3 ) and a power amplifier (P-AMP) consisting of a wideband power amplifier, a low pass filter, and an output detection circuit.
KR92013749U 1992-07-25 1992-07-25 Relay for multi channel wireless broadcast underground KR950005701Y1 (en)

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KR950005701Y1 true KR950005701Y1 (en) 1995-07-20

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