JPH04167717A - Area communication system - Google Patents
Area communication systemInfo
- Publication number
- JPH04167717A JPH04167717A JP2292153A JP29215390A JPH04167717A JP H04167717 A JPH04167717 A JP H04167717A JP 2292153 A JP2292153 A JP 2292153A JP 29215390 A JP29215390 A JP 29215390A JP H04167717 A JPH04167717 A JP H04167717A
- Authority
- JP
- Japan
- Prior art keywords
- base station
- station
- communication
- portable
- coaxial cable
- 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
Links
- 230000005540 biological transmission Effects 0.000 claims abstract description 13
- 238000000034 method Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
Landscapes
- Near-Field Transmission Systems (AREA)
- Mobile Radio Communication Systems (AREA)
Abstract
Description
【発明の詳細な説明】
［産業上の利用分野］
本発明は、限定されたエリアを対象としてデータ伝送通
信を行なうエリア通信方式に関するものである。ここで
、データ伝送とは、通話及びデータ伝送を言う。DETAILED DESCRIPTION OF THE INVENTION [Industrial Field of Application] The present invention relates to an area communication system for performing data transmission communication in a limited area. Here, data transmission refers to telephone calls and data transmission.
［従来の技術］
エリア通信を行なう方式としては、第２図に示すような
制御局１、分散基地局２、携帯局３の形態をとる方式、
第３図に示すような基地局１１、携帯局１２、漏洩同軸
ケーブル１３の形態をとる方式が考えられるが、第２図
に示す方式は分散基地局２を多く必要とし、受信レベル
が変動しやすい欠点がある。又、第３図に示す方式は、
基地局１１より携帯局１２への通信は可能であるが、携
帯局１２より基地局１１への通信は小出力電波によって
は難しいという欠点がある。[Prior Art] As a method for performing area communication, there is a method that takes the form of a control station 1, a distributed base station 2, and a mobile station 3 as shown in FIG.
A system that takes the form of a base station 11, a mobile station 12, and a leaky coaxial cable 13 as shown in Fig. 3 is conceivable, but the system shown in Fig. 2 requires many distributed base stations 2 and the reception level fluctuates. There are some easy drawbacks. Also, the method shown in Figure 3 is
Although it is possible to communicate from the base station 11 to the mobile station 12, there is a drawback that communication from the mobile station 12 to the base station 11 is difficult due to low output radio waves.
［発明が解決しようとする課題〕
本発明は上記のような欠点を除去したもので、多くの分
散基地局を必要とせず、携帯局より基地局へのデータ伝
送通信を含むエリア通信を小出力電波により行なうよう
にし得るエリア通信方式を提供することを目的とする。[Problems to be Solved by the Invention] The present invention eliminates the above-mentioned drawbacks, does not require many distributed base stations, and can perform area communication including data transmission communication from a mobile station to a base station with a small output. The purpose of the present invention is to provide an area communication method that can be carried out using radio waves.
［課題を解決するための手段と作用］
本発明は上記課題を解決するために、限定されたエリア
を対象としてデータ伝送通信を行なうエリア通信方式に
於て、基地局、携帯局、漏洩同軸ケーブル、受信用アン
テナよりなり小出力電波によりエリア通信を行なうこと
を特徴とするもので、多くの分散基地局を必要とせず、
携帯局より基地局へのデータ伝送通信を含むエリア通信
を小出力電波により行なうようにしたものである。[Means and effects for solving the problems] In order to solve the above problems, the present invention provides an area communication system that performs data transmission communication in a limited area, in which base stations, mobile stations, and leaky coaxial cables are used. , which consists of a receiving antenna and performs area communication using low output radio waves, does not require many distributed base stations,
Area communication, including data transmission communication from a mobile station to a base station, is performed using low output radio waves.
［実施例コ 以下図面を参照して本発明の実施例を詳細に説明する。[Example code] Embodiments of the present invention will be described in detail below with reference to the drawings.
第１図は本発明の一実施例を示し、基地局２］には漏洩
同軸ケーブル２３の一端が接続され、この漏洩同軸ケー
ブル２３には複数の受信用アンテナ２４，２５．２６が
相互に所定間隔をおいて設けられる。この各受信用アン
テナ２４，２５゜２６のそれぞれ固有の限定されたエリ
ア内には携帯局２２が設けられる。基地局２１から携帯
局２２へ通信する場合は、基地局２１→漏洩同軸ケ一ブ
ル２３→空中線→携帯局２２の経路をとってデータ伝送
通信を小出力電波により行なう。一方、携帯局２２から
基地局２１へ通信する場合は、携帯局２２−空中線→受
信用アンテナ２５−漏洩同軸ケーブル２３−基地局２１
の経路をとってデータ伝送通信を小出力電波により行な
う。第１図の場合は、受信用アンテナ２５に固有の限定
されたエリアを対象としてエリア通信を行っている。FIG. 1 shows an embodiment of the present invention, in which one end of a leaky coaxial cable 23 is connected to a base station 2, and a plurality of receiving antennas 24, 25, 26 are connected to the leaky coaxial cable 23 at predetermined positions. Provided at intervals. A mobile station 22 is provided within a unique and limited area of each receiving antenna 24, 25°26. When communicating from the base station 21 to the mobile station 22, data transmission communication is performed using low-power radio waves by taking the route of base station 21 -> leaky coaxial cable 23 -> antenna -> mobile station 22. On the other hand, when communicating from the mobile station 22 to the base station 21, the mobile station 22 - antenna → receiving antenna 25 - leaky coaxial cable 23 - base station 21
Data transmission communication is carried out using low output radio waves. In the case of FIG. 1, area communication is performed in a limited area specific to the receiving antenna 25.
尚、携帯局から携帯局へのデータ伝送通信は基地局経由
で行うことができる。Note that data transmission communication from one mobile station to another can be performed via a base station.
［発明の効果］
以上述べたように本発明によれば、基地局、携帯局、漏
洩同軸ケーブル、受信用アンテナという構成にしたので
、多くの分散基地局を必要とせず、小出力電波により携
帯局より基地局へのデータ伝送通信を含むエリア通信を
行なうことが可能となるという効果を有する。[Effects of the Invention] As described above, according to the present invention, since the configuration includes a base station, a mobile station, a leaky coaxial cable, and a receiving antenna, there is no need for many distributed base stations, and mobile This has the effect of making it possible to perform area communication including data transmission communication from the station to the base station.
第１図は発明の一実施例を示す構成図、第２図は従来の
エリア通信方式の一例を示す構成図、第３図は従来のエ
リア通信方式の他の例を示す構成図である。
２１・・・基地局、２２・・・携帯局、２３・・・漏洩
同軸ケーブル、２４，２５．２６・・・受信用アンテナ
。
出願人代理人 弁理士 鈴江武彦FIG. 1 is a block diagram showing an embodiment of the invention, FIG. 2 is a block diagram showing an example of a conventional area communication system, and FIG. 3 is a block diagram showing another example of the conventional area communication system. 21...Base station, 22...Mobile station, 23...Leaky coaxial cable, 24, 25.26...Receiving antenna. Applicant's agent Patent attorney Takehiko Suzue
Claims (1)
エリア通信方式に於て、基地局、携帯局、漏洩同軸ケー
ブル、受信用アンテナよりなり小出力電波によりエリア
通信を行なうことを特徴とするエリア通信方式。An area communication system that performs data transmission communication in a limited area, and is characterized by performing area communication using low-output radio waves, consisting of a base station, a mobile station, a leaky coaxial cable, and a receiving antenna. .
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2292153A JPH04167717A (en) | 1990-10-31 | 1990-10-31 | Area communication system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2292153A JPH04167717A (en) | 1990-10-31 | 1990-10-31 | Area communication system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH04167717A true JPH04167717A (en) | 1992-06-15 |
Family
ID=17778229
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2292153A Pending JPH04167717A (en) | 1990-10-31 | 1990-10-31 | Area communication system |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH04167717A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7840233B2 (en) | 2006-08-24 | 2010-11-23 | Toshiba Tec Kabushiki Kaisha | Wireless communication system, wireless communication method and wireless communication apparatus |
| US8552864B2 (en) | 2011-06-14 | 2013-10-08 | Mitsubishi Electric Corporation | Intrusion detection system and intrusion detection apparatus |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS50106505A (en) * | 1974-01-29 | 1975-08-22 |
-
1990
- 1990-10-31 JP JP2292153A patent/JPH04167717A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS50106505A (en) * | 1974-01-29 | 1975-08-22 |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7840233B2 (en) | 2006-08-24 | 2010-11-23 | Toshiba Tec Kabushiki Kaisha | Wireless communication system, wireless communication method and wireless communication apparatus |
| US8552864B2 (en) | 2011-06-14 | 2013-10-08 | Mitsubishi Electric Corporation | Intrusion detection system and intrusion detection apparatus |
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