JPH066273A - Electronic device system for marine vessel - Google Patents

Electronic device system for marine vessel

Info

Publication number
JPH066273A
JPH066273A JP4088415A JP8841592A JPH066273A JP H066273 A JPH066273 A JP H066273A JP 4088415 A JP4088415 A JP 4088415A JP 8841592 A JP8841592 A JP 8841592A JP H066273 A JPH066273 A JP H066273A
Authority
JP
Japan
Prior art keywords
optical
ship
signal
cable
reception
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP4088415A
Other languages
Japanese (ja)
Inventor
Yoshiyuki Yasuda
佳之 保田
Hitoshi Komagata
日登志 駒形
Takashi Ueda
隆 上田
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
NTT Docomo Inc
Nippon Telegraph and Telephone Corp
Original Assignee
Nippon Telegraph and Telephone Corp
NTT Mobile Communications Networks Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Nippon Telegraph and Telephone Corp, NTT Mobile Communications Networks Inc filed Critical Nippon Telegraph and Telephone Corp
Priority to JP4088415A priority Critical patent/JPH066273A/en
Publication of JPH066273A publication Critical patent/JPH066273A/en
Pending legal-status Critical Current

Links

Landscapes

  • Optical Communication System (AREA)
  • Radio Transmission System (AREA)
  • Position Fixing By Use Of Radio Waves (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

PURPOSE:To decrease the number of drawing-round cables, and also, to facilitate the construction work by connecting plural devices by one piece of optical fiber cable. CONSTITUTION:An output of a communication receiving amplifier 34, and an output of a GPS receiving amplifier 22 are synthesized by a multiplexing circuit 36, and it is converted to an optical signal by an optical modulator 37. Also, a transmitting signal is converted to an optical signal by an optical modulator 41 for using different wavelength, and transmitted on one piece of optical fiber cable 39 by wavelength multiplex.

Description

【発明の詳細な説明】Detailed Description of the Invention

【0001】[0001]

【産業上の利用分野】本発明は、測位システムを具備
し、更に船舶通信システムとして内航船舶電話システム
あるいは、移動体衛星通信システムをそれぞれ使用し
て、緊急通報システムを実現する場合の、装置の艤装方
法に関する。特に、船舶局において、船内設備と船上設
備とを接続するために、長大なケーブルが必要となる場
合の艤装方法に関する。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention is an apparatus for implementing an emergency call system, which is equipped with a positioning system and further uses a coastal ship telephone system or a mobile satellite communication system as a ship communication system. The outfitting method. In particular, the present invention relates to an outfitting method in the case where a long cable is required to connect inboard equipment and onboard equipment in a ship station.

【0002】[0002]

【従来の技術】船舶においては、航行補助、遭難時の位
置通報等の理由から、GPS、ロランC、天測といった
測位システムを具備することが必須である。更に、測位
システムとは別に、内航船舶電話、移動体衛星通信等の
船舶通信システムを具備しており、一般電話網経由で通
信が可能である。
2. Description of the Related Art It is essential for a ship to be equipped with a positioning system such as GPS, Loran C, or astrometry for reasons such as navigation assistance and position notification in the event of a disaster. Further, in addition to the positioning system, a ship communication system such as a coastal ship phone and mobile satellite communication is provided, and communication is possible via a general telephone network.

【0003】GPSとはLバンドの無線電波を使用し、
測位点で受信される4つの衛星と測位点との距離差を測
定することにより測位を行うものである。また、船舶通
信システムの周波数としては、内航船舶電話システムは
UHFバンド、衛星を利用したシステムではLバンドま
たはSバンドが検討されており、何れもGPSとは異な
る周波数バンドを利用する。
GPS uses L-band radio waves,
Positioning is performed by measuring the distance difference between the four satellites received at the positioning point and the positioning point. Further, as a frequency of the ship communication system, a UHF band has been studied for a coastal ship telephone system, and an L band or an S band has been studied for a system using a satellite, and each uses a frequency band different from GPS.

【0004】そして両者を相互に利用すれば、測位シス
テムによって得られた位置情報を、船舶通信システムに
より一般電話網の加入者端末へ伝送することが可能とな
り、船舶の位置通知サービスおよび緊急通信発生時の通
話・通報と、船舶の位置確認が同時に可能となる。測位
システムと船舶通信システムは、それぞれ異なる独立の
システムであること、周波数帯が全く異なることなどか
ら、双方の機器はそれぞれ専用の無線機、接続ケーブル
等が独立に設置されている。
If the two are mutually used, the position information obtained by the positioning system can be transmitted to the subscriber terminal of the general telephone network by the ship communication system, and the ship position notification service and the emergency communication are generated. It is possible to simultaneously make phone calls / reports and confirm the position of the ship. Since the positioning system and the ship communication system are independent systems different from each other and the frequency bands are completely different, both devices have their own dedicated radios, connection cables, etc. installed independently.

【0005】図2は移動体衛星通信による通信装置を利
用する場合の、従来の移動局装置の構成の一例を示す説
明図である。移動体衛星通信用の受信信号はアンテナ1
で受信され、デュープレクサ2により送受分離された後
に、受信アンプ4で増幅される。受信アンプ4の出力
は、移動体衛星通信用のRF受信ケーブル6により船内
部51に接続される。船内部51では受信ケーブル6か
らの入力を移動体衛星通信用の復調部8で復調する。
FIG. 2 is an explanatory diagram showing an example of the configuration of a conventional mobile station apparatus when a communication apparatus using mobile satellite communication is used. Received signal for mobile satellite communication is antenna 1
Is received by the duplexer 2 and is separated by the duplexer 2 before being amplified by the reception amplifier 4. The output of the reception amplifier 4 is connected to the inside 51 of the ship by an RF reception cable 6 for mobile satellite communication. In the interior 51 of the ship, the input from the receiving cable 6 is demodulated by the demodulator 8 for mobile satellite communication.

【0006】移動局から送信される信号については船内
部51の移動体衛星通信用の変調部7で変調された後、
送信用RFケーブル5で船上部50に接続される。船上
部50では送信アンプ3で増幅し、デュープレクサ2経
由でアンテナ1より送信される。一方、GPS信号に付
いてはアンテナ21で受信され、受信アンプ22で増幅
され、GPS用受信ケーブル23経由で船内部51に接
続し、復調部24で復調される。
The signal transmitted from the mobile station is modulated by the modulation unit 7 for mobile satellite communication inside the ship 51,
The transmission RF cable 5 is connected to the upper part 50 of the ship. In the upper part 50 of the ship, it is amplified by the transmission amplifier 3 and transmitted from the antenna 1 via the duplexer 2. On the other hand, the GPS signal is received by the antenna 21, amplified by the reception amplifier 22, connected to the inside 51 of the ship via the GPS reception cable 23, and demodulated by the demodulation unit 24.

【0007】図3は内航船舶に適用した場合の、従来の
移動局の構成を説明する説明図である。基本的な回路構
成は図2と同様であるが、デュープレクサ13が船内部
51に設置されているため、船上部50と船内部51は
内航船用RFケーブル12以外のものが存在しない。
FIG. 3 is an explanatory diagram for explaining the configuration of a conventional mobile station when applied to a coastal ship. The basic circuit configuration is the same as that of FIG. 2, but since the duplexer 13 is installed in the inside 51 of the ship, the upper part 50 and the inside 51 of the ship do not have anything other than the RF cable 12 for inland vessels.

【0008】[0008]

【発明が解決しようとする課題】しかし、移動局の構成
として、船舶通信設備と位置測定設備をそれぞれ具備す
る必要があることから、船上装置と船内装置を接続する
ケーブル、電源線等が2系統必要となる。
However, since it is necessary to provide the ship communication equipment and the position measurement equipment as the configuration of the mobile station, there are two systems of cables, power lines, etc. for connecting the onboard equipment and the inboard equipment. Will be needed.

【0009】このため、例えば測位システムあるいは船
舶通信システムの、どちらか一方の装置のみを具備して
おり、新規に他方のシステムを導入するような場合に
は、船上部および船内部に新たに設置するともに、船上
部と船内部を接続するケーブルも新たに敷設する必要が
あった。
Therefore, for example, when only one of the positioning system and the ship communication system is provided and the other system is newly introduced, it is newly installed on the upper part of the ship and inside the ship. At the same time, it was necessary to lay a new cable connecting the upper part of the ship and the inside of the ship.

【0010】そのケーブルは一般に10m以上にもおよ
ぶことがあり、ケーブルの価格、艤装工事とも高価にな
り、また工事が困難となる等の問題があった。機器設置
に関する艤装工事のうち、特にケーブル敷設が問題であ
り、ケーブル自身の費用、および工事にともなう費用と
手間を削減する事により、艤装工事の大幅な効率化、経
済化を図ることが可能となる。
In general, the cable may reach 10 m or more, and there are problems that the cost of the cable and the outfitting work are expensive, and the work is difficult. Of the outfitting work related to equipment installation, cable laying is a particular problem, and by reducing the cost of the cable itself, as well as the cost and effort involved in the work, it is possible to make the outfitting work much more efficient and economical. Become.

【0011】また、船舶においてはレーダ、短波等の各
種通信装置から送信する電磁波、あるいはその他の電気
機器から不要な電磁波が発生することもあり、不要電磁
波がケーブルを通じて船舶通信システムや測位システム
に影響を及ぼすことも考えられる。
Further, in a ship, electromagnetic waves transmitted from various communication devices such as radar and short wave, or unnecessary electromagnetic waves may be generated from other electric devices, and the unnecessary electromagnetic waves affect the ship communication system and positioning system through cables. Can also be considered.

【0012】[0012]

【課題を解決するための手段】本発明は、ケーブル敷設
工事の経費と手間を削減するため、測位システム用の受
信ケーブルと船舶通信用の通信ケーブルを共用する事に
より、ケーブル線数を削減し、ケーブル敷設工事を軽減
するものである。更に、共用ケーブルを光ファイバケー
ブルとする事により、不要電磁波の影響を軽減するもの
である。
The present invention reduces the number of cables by sharing a receiving cable for a positioning system and a communication cable for ship communication in order to reduce the cost and labor of cable laying work. The cable laying work is reduced. Furthermore, by using an optical fiber cable as the shared cable, the effect of unnecessary electromagnetic waves is reduced.

【0013】そしてこの周波数の違いを利用し、無線用
合波回路、無線用分波回路、光変調器、光合分波器、デ
ュープレクサを用いて、GPS用、船舶通信用の、船上
装置、船内装置間の接続ケーブルを共用するものであ
る。
Utilizing this difference in frequency, a radio wave multiplexing circuit, a radio wave demultiplexing circuit, an optical modulator, an optical wave multiplexer / demultiplexer, and a duplexer are used for GPS, ship communication, onboard equipment, and inboard. The connection cable between devices is shared.

【0014】このため具体的には船舶通信用装置と測位
装置を設置した船舶用電子装置システにおいて、船舶通
信用装置の受信信号と測位装置の受信信号を合波する合
波手段と、合波された信号を光信号に変換する受信用光
変調手段と、船舶通信用装置の送信信号を前記受信用光
変調手段で使用する波長とは異なった波長の光信号に変
換する送信用光変調手段と、受信用光変調手段と前記送
信用光変調手段の双方で用いる光信号を合成する光合分
波器と、光合分波器間を接続する1本の光ファイバケー
ブルとを備えたものである。
Therefore, specifically, in a ship electronic device system in which a ship communication device and a positioning device are installed, a combining means for combining a reception signal of the ship communication device and a reception signal of the positioning device, and a combining device. Optical modulation means for converting the received signal into an optical signal, and optical modulation means for transmission for converting the transmission signal of the ship communication device into an optical signal having a wavelength different from the wavelength used by the reception optical modulation means. And an optical multiplexer / demultiplexer for synthesizing optical signals used by both the receiving optical modulator and the transmitting optical modulator, and one optical fiber cable connecting the optical multiplexers / demultiplexers. .

【0015】[0015]

【作用】具体的な構成としては船上部においては、船舶
通信用の受信アンプの出力と、GPS用受信アンプの出
力を合成するための無線用合波回路を設け、合成された
無線信号を光変調器により光信号に変換する。一方、光
変調器とは異なる波長を使用する光変調器により光信号
に変換された送信信号を、光分波器を用いて、波長多重
により一本の光ファイバケーブル上を伝送して船内部に
接続する。船内部においては光合分波器により送受分離
し、受信系の光信号は、光変調器により電気信号に変換
された後、船舶通信用と、GPSの受信信号に分配する
分波器により、2つの信号にそれぞれ分配され、各々の
受信機に接続するものである。
As a specific configuration, a radio wave multiplexing circuit for synthesizing the output of the receiving amplifier for ship communication and the output of the GPS receiving amplifier is provided on the upper part of the ship, and the combined radio signal is optically transmitted. The optical signal is converted by the modulator. On the other hand, the transmission signal converted into an optical signal by an optical modulator that uses a wavelength different from that of the optical modulator is transmitted on a single optical fiber cable by wavelength division multiplexing using an optical demultiplexer Connect to. In the interior of the ship, the optical multiplexer / demultiplexer separates transmission and reception, and the optical signal of the receiving system is converted into an electrical signal by the optical modulator, and then it is divided into It is divided into two signals and connected to each receiver.

【0016】[0016]

【実施例】図1は本発明の一実施例を示す移動局の構成
を示すブロック図である。内航船舶、移動体衛星通信の
何れを適用したばあいも、同様の構成になる。アンテナ
31で受信された船舶通信用の受信信号は、デュープレ
クサ32により送受分離され、受信信号のみが船舶通信
用受信アンプ34で増幅された後、合波回路36に入力
され、GPS用アンプ22から出力されるGPSの信号
と合成される。合波回路36で合成された受信信号は、
光変調器37により光信号に変換される。
FIG. 1 is a block diagram showing the configuration of a mobile station showing an embodiment of the present invention. The same configuration is applied regardless of whether the domestic vessel or mobile satellite communication is applied. The reception signal for ship communication received by the antenna 31 is transmitted / received by the duplexer 32, and only the reception signal is amplified by the reception amplifier 34 for ship communication, and then input to the multiplexing circuit 36, from the GPS amplifier 22. It is combined with the output GPS signal. The received signal synthesized by the multiplexing circuit 36 is
It is converted into an optical signal by the optical modulator 37.

【0017】一方、船舶通信用の送信信号は船内部51
に設置された光変調器41で光信号に変換されるが、船
上部50の光変調器37と、船内部51の光変調器41
では使用する光の波長が異なるため光合分波器38およ
び40を用いて同一の光ファイバケーブル39を共用す
ることができる。
On the other hand, the transmission signal for ship communication is the inside 51 of the ship.
The optical modulator 41 installed in the ship converts it into an optical signal. The optical modulator 37 on the upper part 50 of the ship and the optical modulator 41 on the inner part 51 of the ship
Since the wavelengths of the lights used are different, the same optical fiber cable 39 can be shared by using the optical multiplexers / demultiplexers 38 and 40.

【0018】光ファイバケーブル39経由で船内部51
に接続された受信信号は、光合分波器40により、光変
調器37の波長の信号、すなわち受信信号のみ抽出さ
れ、光復調器42で電気信号に変換される。電気信号に
変換された受信信号は分波回路43により船舶通信用、
GPS用に分離され、それぞれ所定の復調部45、24
で復調される。
Inside the ship 51 via the optical fiber cable 39
The received signal connected to is extracted by the optical multiplexer / demultiplexer 40 only the signal of the wavelength of the optical modulator 37, that is, the received signal, and converted into an electrical signal by the optical demodulator 42. The received signal converted into an electric signal is used for ship communication by the demultiplexing circuit 43.
Separated for GPS, each has a predetermined demodulation unit 45, 24
Demodulated by.

【0019】なお、一般にアンプや合波器の入出力で
は、信号にフィルタリングが必要であるが、本質的なこ
とではないので、アンプ、合波器等と一体でフィルタが
構成されるものとして説明を省略している。
Generally, the input / output of an amplifier or a multiplexer requires filtering of the signal, but this is not essential, so the explanation will be made assuming that the filter is formed integrally with the amplifier, the multiplexer and the like. Is omitted.

【0020】[0020]

【発明の効果】以上説明したように本発明は、従来別々
に敷設されていた測位システム用ケーブルと船舶通信用
ケーブル共用することにより、ケーブルの本数を減ら
し、設備費および工事費を節減し、経済的、効率的な移
動局装置が構成できるという効果がある。また、接続ケ
ーブルとして光ファイバを使用するため、他の機器から
の誘導や雑音を受けにくいという効果もある。
As described above, according to the present invention, the cable for positioning system and the cable for ship communication, which have been separately laid separately, are commonly used, so that the number of cables is reduced and the facility cost and the construction cost are reduced. There is an effect that an economical and efficient mobile station device can be configured. In addition, since an optical fiber is used as the connection cable, there is an effect that it is unlikely to receive induction or noise from other devices.

【0021】また、光ファイバケーブルは同軸ケーブル
に比べて伝送帯域が広いことから、Lバンド、Sバンド
のみならず将来、更に高い周波数や低い周波数の信号を
伝送する必要が生じた場合でも同一の技術を応用するこ
とができることにより、1本の光ファイバで対応するこ
とが可能である。
Further, since the optical fiber cable has a wider transmission band than the coaxial cable, the same applies not only to the L band and the S band, but also in the future when it is necessary to transmit a signal of a higher frequency or a lower frequency. Since the technology can be applied, it is possible to deal with it with one optical fiber.

【図面の簡単な説明】[Brief description of drawings]

【図1】本発明の一実施例を示すブロック図FIG. 1 is a block diagram showing an embodiment of the present invention.

【図2】従来の一例を示すブロック図FIG. 2 is a block diagram showing a conventional example.

【図3】従来の他の一例を示すブロック図FIG. 3 is a block diagram showing another example of the related art.

【符号の説明】[Explanation of symbols]

1 アンテナ 3 送信アンプ 4 受信アンプ 5 送信用RFケーブル 6 受信用RF受信ケーブル 7 変調部 8 復調部 22 GPS用アンプ 31 アンテナ 32 デュープレクサ 34 船舶通信用受信アンプ 36 合波回路 37 光変調器 39 光ファイバ 50 船上部 51 船内部 1 Antenna 3 Transmission Amplifier 4 Reception Amplifier 5 Transmission RF Cable 6 Reception RF Reception Cable 7 Modulation Section 8 Demodulation Section 22 GPS Amplifier 31 Antenna 32 Duplexer 34 Ship Communication Reception Amplifier 36 Multiplexing Circuit 37 Optical Modulator 39 Optical Fiber 50 Upper part 51 Inside the ship

───────────────────────────────────────────────────── フロントページの続き (72)発明者 上田 隆 東京都千代田区内幸町1丁目1番6号 日 本電信電話株式会社内 ─────────────────────────────────────────────────── ─── Continuation of front page (72) Inventor Takashi Ueda 1-1-6 Uchisaiwaicho, Chiyoda-ku, Tokyo Nihon Telegraph and Telephone Corporation

Claims (1)

【特許請求の範囲】[Claims] 【請求項1】 船舶通信用装置と測位装置を設置した船
舶用電子装置システにおいて、 船舶通信用装置の受信信号と測位装置の受信信号を合波
する合波手段と、 前記合波された信号を光信号に変換する受信用光変調手
段と、 船舶通信用装置の送信信号を前記受信用光変調手段で使
用する波長とは異なった波長の光信号に変換する送信用
光変調手段と、 前記受信用光変調手段と前記送信用光変調手段の双方で
用いる光信号を合成する光合分波器と、 前記光合分波器間を接続する1本の光ファイバケーブル
とを備えたことを特徴とする船舶用電子装置システム。
1. A ship electronic device system in which a ship communication device and a positioning device are installed, and a combining unit for combining a reception signal of the ship communication device and a reception signal of the positioning device, and the combined signal. An optical signal receiving means for converting the optical signal into an optical signal, an optical signal transmitting means for converting the optical transmission signal of the ship communication device into an optical signal having a wavelength different from the wavelength used in the optical receiving means, An optical multiplexer / demultiplexer for combining optical signals used by both the reception optical modulator and the transmission optical modulator, and one optical fiber cable connecting the optical multiplexers / demultiplexers are provided. Electronic device system for ships.
JP4088415A 1992-03-13 1992-03-13 Electronic device system for marine vessel Pending JPH066273A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4088415A JPH066273A (en) 1992-03-13 1992-03-13 Electronic device system for marine vessel

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4088415A JPH066273A (en) 1992-03-13 1992-03-13 Electronic device system for marine vessel

Publications (1)

Publication Number Publication Date
JPH066273A true JPH066273A (en) 1994-01-14

Family

ID=13942168

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4088415A Pending JPH066273A (en) 1992-03-13 1992-03-13 Electronic device system for marine vessel

Country Status (1)

Country Link
JP (1) JPH066273A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000258523A (en) * 1999-03-12 2000-09-22 Koden Electronics Co Ltd Radio direction measuring device
JP2003304173A (en) * 2002-04-11 2003-10-24 Ricoh Co Ltd Radio system
WO2004072924A1 (en) * 2003-02-12 2004-08-26 Cesla Inc ., Global notification/display/search system

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000258523A (en) * 1999-03-12 2000-09-22 Koden Electronics Co Ltd Radio direction measuring device
JP2003304173A (en) * 2002-04-11 2003-10-24 Ricoh Co Ltd Radio system
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