KR950016041A - Underground comprehensive wireless relay system - Google Patents
Underground comprehensive wireless relay system Download PDFInfo
- Publication number
- KR950016041A KR950016041A KR1019930023982A KR930023982A KR950016041A KR 950016041 A KR950016041 A KR 950016041A KR 1019930023982 A KR1019930023982 A KR 1019930023982A KR 930023982 A KR930023982 A KR 930023982A KR 950016041 A KR950016041 A KR 950016041A
- Authority
- KR
- South Korea
- Prior art keywords
- signal
- transmitting
- amplifying
- transmission
- cellular
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/59—Responders; Transponders
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- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Radio Relay Systems (AREA)
- Mobile Radio Communication Systems (AREA)
Abstract
본 발명은 지하 종합 무선 중계 시스템에 관한 것으로서, 지상에 설치되어 무선 전파신호를 수신하는 지상수신 안테나; 상기 지상수신안테나에 수신된 전파신호를 전치증폭하는 전치중복수단; 전치중폭된 신호를 주파수대별로 분리하는 안테나 분배수단: 상기 전치증폭된 신호중 AM방송신호를 증폭 및 송출하기 위한 AM송출수단: 상기 분리된 신호중 FM방송신호를 증폭 및 송출하기 위한 FM송출수단: 상기 분리된 신호중 적어도 하나 이상의 페이저신호를 증폭 및 송출하기 위한 적어도 하나 이상의 페이저 송출수단; 지상에 설치되어 셀룰라폰신호를 수신하고 송신하는 지상 송수신안테나: 상기 지상 송수신안테나와 결합되어 셀룰라신호를 증폭 및 송출하기 위한 셀룰라송출수단; 상기 FM송출수단 및 페이저송출수단의 송출신호를 임피던스 정합하기 위한 제1분배수단: 및 상기 AM송출신호, 공용기의 출력신호 및 셀룰라 송출신호를 지하공간에 복사하기 위하여 누설동축케이블 통하여 지하공간의 적어도 한 곳 이상에 설치된 종단저항안테나에 분배하는 제2분배수단을 구비하는 것을 특징으로 한다. 따라서, 본 발명은 라디오방송, 페이저 및 셀룰라 통신, 소방무선통신 및 경찰 지휘무선통신의 무선중계를 할 수 있다.The present invention relates to a comprehensive underground wireless relay system, which is installed on the ground and receives a radio wave signal; Pre-duplicate means for pre-amplifying the radio signal received at the ground receiving antenna; Antenna distribution means for separating the pre-amplified signal by frequency band: AM transmitting means for amplifying and transmitting an AM broadcast signal among the preamplified signals: FM transmitting means for amplifying and transmitting an FM broadcast signal among the separated signals: the separation At least one pager sending means for amplifying and sending at least one pager signal among the received signals; A terrestrial transceiving antenna installed on the ground to receive and transmit a cellular phone signal; cellular transmission means coupled to the terrestrial transceiving antenna to amplify and transmit a cellular signal; First distributing means for impedance matching of the transmission signal of the FM transmission means and the pager transmission means; and at least a portion of the underground space through a leakage coaxial cable to copy the AM transmission signal, the output signal of the common unit, and the cellular transmission signal to the underground space; And a second distribution means for distributing the terminal resistor antennas installed at one or more places. Accordingly, the present invention enables radio broadcasting of radio broadcasting, pager and cellular communication, fire fighting radio communication, and police command radio communication.
Description
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음Since this is an open matter, no full text was included.
제1도는 본 발명에 의한 지하 종합 무선 시스템의 블럭도이다.1 is a block diagram of a comprehensive underground wireless system according to the present invention.
제2도는 본 발명에 의한 지하 종합 무선 시스템의 바람직한 일 실시예의 회로도이다.2 is a circuit diagram of a preferred embodiment of the integrated underground wireless system according to the present invention.
Claims (2)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1019930023982A KR970000161B1 (en) | 1993-11-12 | 1993-11-12 | Radio repeater under ground |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1019930023982A KR970000161B1 (en) | 1993-11-12 | 1993-11-12 | Radio repeater under ground |
Publications (2)
Publication Number | Publication Date |
---|---|
KR950016041A true KR950016041A (en) | 1995-06-17 |
KR970000161B1 KR970000161B1 (en) | 1997-01-04 |
Family
ID=19367887
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1019930023982A KR970000161B1 (en) | 1993-11-12 | 1993-11-12 | Radio repeater under ground |
Country Status (1)
Country | Link |
---|---|
KR (1) | KR970000161B1 (en) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100285086B1 (en) * | 1998-04-17 | 2001-03-15 | 양영석 | Underground Wireless Network Relay System |
KR100346151B1 (en) * | 1999-03-25 | 2002-08-01 | 주식회사 하이닉스반도체 | Apparatus for space diversity using leakage coaxial cable |
KR100372515B1 (en) * | 1996-11-27 | 2003-06-12 | 엘지정보통신주식회사 | Small base station apparatus of cdma mobile communication system |
KR100736116B1 (en) * | 2005-06-01 | 2007-07-06 | 한국전파기지국주식회사 | Terrestrial DMB service system for underground railway |
KR100880626B1 (en) * | 2008-07-01 | 2009-01-30 | 장애인표준사업장비클시스템 주식회사 | Unified antenna device for a car |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100690327B1 (en) * | 2004-11-17 | 2007-03-09 | 주식회사 쏠리테크 | Repeater for receiving a terrestrial wave |
KR101711001B1 (en) * | 2015-09-21 | 2017-03-03 | 케이디테크(주) | Portable radio telecommunication system for firefighting |
-
1993
- 1993-11-12 KR KR1019930023982A patent/KR970000161B1/en not_active IP Right Cessation
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100372515B1 (en) * | 1996-11-27 | 2003-06-12 | 엘지정보통신주식회사 | Small base station apparatus of cdma mobile communication system |
KR100285086B1 (en) * | 1998-04-17 | 2001-03-15 | 양영석 | Underground Wireless Network Relay System |
KR100346151B1 (en) * | 1999-03-25 | 2002-08-01 | 주식회사 하이닉스반도체 | Apparatus for space diversity using leakage coaxial cable |
KR100736116B1 (en) * | 2005-06-01 | 2007-07-06 | 한국전파기지국주식회사 | Terrestrial DMB service system for underground railway |
KR100880626B1 (en) * | 2008-07-01 | 2009-01-30 | 장애인표준사업장비클시스템 주식회사 | Unified antenna device for a car |
Also Published As
Publication number | Publication date |
---|---|
KR970000161B1 (en) | 1997-01-04 |
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Free format text: TRIAL DECISION FOR INVALIDATION IN ENTIRETY REQUESTED 19980317 Effective date: 19990323 Free format text: TRIAL NUMBER: 1998100000319; TRIAL DECISION FOR INVALIDATION IN ENTIRETY REQUESTED 19980317 Effective date: 19990323 |
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