JP4648735B2 - Digital radio system - Google Patents

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JP4648735B2
JP4648735B2 JP2005074571A JP2005074571A JP4648735B2 JP 4648735 B2 JP4648735 B2 JP 4648735B2 JP 2005074571 A JP2005074571 A JP 2005074571A JP 2005074571 A JP2005074571 A JP 2005074571A JP 4648735 B2 JP4648735 B2 JP 4648735B2
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理 鈴木
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Hitachi Kokusai Electric Inc
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本発明は、統制台と、複数の基地局を備えた親局と、複数の子局を有するデジタル無線システムに関する。   The present invention relates to a digital wireless system having a control table, a master station having a plurality of base stations, and a plurality of slave stations.

統制台と、複数の基地局を備えた親局と、複数の子局を有するデジタル無線システムは、（社）電波産業会策定の標準規格ＡＲＩＢ ＳＴＢ−Ｔ７９「市町村デジタル移動通信システム」（非特許文献１）に基づいたデジタル無線システムである。   A digital wireless system having a control stand, a master station having a plurality of base stations, and a plurality of slave stations is a standard ARIB STB-T79 “Municipal Digital Mobile Communication System” (Non-patented) This is a digital radio system based on the literature 1).

図２は従来のデジタル無線システムの構成図である。デジタル無線システムは、該システムを統括し各通信を回線交換接続制御する統制局制御装置１と、端末局と無線通信を行う複数の基地局無線送受信装置２，３，４と、基地局無線送受信装置２，３，４の各エリアに配置され無線通信を行う端末局５−１，…，５−ｎ，６−１，…，６−ｎ，７−１，…，７−ｎと、該システムの中心となり通常通信の他、一斉通信、統制通信等の指令通信を行う統制台８と、該システムの運用状態を管理する運用管理装置９と、各通信状況を記録する自動通信記録装置１０を備えている。   FIG. 2 is a block diagram of a conventional digital radio system. The digital radio system is a control station control device 1 that controls the communication and performs circuit switching connection control, a plurality of base station radio transmission / reception devices 2, 3, and 4 that perform radio communication with terminal stations, and base station radio transmission / reception. Terminal stations 5-1,..., 5-n, 6-1,..., 6-n, 7-1,. In addition to normal communication as the center of the system, a control table 8 that performs command communication such as simultaneous communication and control communication, an operation management device 9 that manages the operation status of the system, and an automatic communication recording device 10 that records each communication status It has.

統制局制御装置１と基地局無線送受信装置２，３，４は、基地局無線送受信装置２，３，４の設置場所に合わせて、有線回線、多重無線装置を介して接続する多重無線回線、または、端局装置を介して接続する専用回線等の有線回線により接続する。   The control station control device 1 and the base station wireless transmission / reception devices 2, 3 and 4 are wired, connected to the base station wireless transmission / reception devices 2, 3 and 4 via multiple lines, multiple wireless lines connected via multiple wireless devices, Alternatively, the connection is made through a wired line such as a dedicated line connected via the terminal device.

図２において、統制局制御装置１と基地局無線送受信装置２は有線回線で接続し、統制局制御装置１と基地局無線送受信装置３は多重無線装置１１ａ，１１ｂを介して多重無線回線で接続し、統制局制御装置１と基地局無線送受信装置４は、端局装置１２ａ，１２ｂを介して専用回線等の有線回線で接続している。   In FIG. 2, the control station control device 1 and the base station wireless transmission / reception device 2 are connected by a wired line, and the control station control device 1 and the base station wireless transmission / reception device 3 are connected by a multiple wireless line via multiple wireless devices 11a and 11b. The control station control device 1 and the base station wireless transmission / reception device 4 are connected by a wired line such as a dedicated line via the terminal station devices 12a and 12b.

端末局５−１，…，５−ｎと基地局無線送受信装置２はデジタル無線回線で接続し、端末局６−１，…，６−ｎと基地局無線送受信装置３はデジタル無線回線で接続し、端末局７−１，…，７−ｎと基地局無線送受信装置４はデジタル無線回線で接続し、統制局制御装置１と統制台８は有線回線で接続している。   The terminal stations 5-1,..., 5-n and the base station wireless transmission / reception device 2 are connected by a digital wireless line, and the terminal stations 6-1, ..., 6-n and the base station wireless transmission / reception device 3 are connected by a digital wireless line. The terminal stations 7-1,..., 7-n and the base station wireless transmission / reception device 4 are connected by a digital wireless line, and the control station control device 1 and the control base 8 are connected by a wired line.

次に動作を説明する。端末局５−１と端末局５−ｎが通信を行う場合は、基地局無線送受信装置２→統制局制御装置１→基地局無線送受信装置１を介して回線接続し、端末局５−１と端末局６−１が通信を行う場合は、基地局無線送受信装置２→統制局制御装置１→基地局無線送受信装置３を介して回線接続し、端末局５−１と端末局７−１が通信を行う場合は、基地局無線送受信装置２→統制局制御装置１→基地局無線送受信装置４を介して回線接続し、端末局５−１と統制台７が通信を行う場合は、基地局無線送受信装置２→統制局制御装置１を介して回線接続し、その他の組合せの通信も同様に回線接続する。   Next, the operation will be described. When the terminal station 5-1 and the terminal station 5-n communicate with each other, a line connection is established via the base station wireless transmission / reception device 2 → the control station control device 1 → the base station wireless transmission / reception device 1, and the terminal station 5-1 When the terminal station 6-1 performs communication, the terminal station 5-1 and the terminal station 7-1 are connected to each other via the base station wireless transmission / reception device 2 → the control station control device 1 → the base station wireless transmission / reception device 3. When communication is performed, the base station wireless transmission / reception device 2 → the control station control device 1 → the base station wireless transmission / reception device 4 is connected to the line, and when the terminal station 5-1 and the control table 7 perform communication, the base station A line connection is established via the wireless transmission / reception device 2 → the control station control device 1, and other combinations of communication are similarly connected.

また、統制局制御装置１と基地局無線送受信装置２の有線回線接続が障害等により切断された場合は、基地局無線送受信装置２エリア内に配置された端末局５−１〜端末局５−ｎ同士の通信のみ基地局無線送受信装置２を介して行う折返し通信状態へ自動的に移行し、統制局制御装置１と基地局無線送受信装置３または４との接続が切断されても同様の動作となる。   Further, when the wired line connection between the control station control device 1 and the base station wireless transmission / reception device 2 is disconnected due to a failure or the like, the terminal station 5-1 to the terminal station 5- arranged in the area of the base station wireless transmission / reception device 2 The same operation is performed even when the communication between n is automatically switched to the loopback communication state performed through the base station wireless transmission / reception device 2 and the connection between the control station control device 1 and the base station wireless transmission / reception device 3 or 4 is disconnected. It becomes.

（社）電波産業会策定の標準規格ＡＲＩＢ ＳＴＢ−Ｔ７９「市町村デジタル移動通信システム」ARIB STB-T79 “Municipal digital mobile communication system” established by the Radio Industry Association

従来のデジタル無線システムにおいては、基地局の接続が切断されてしまった場合に、切断された基地局のエリアに配置されている端末局と、災害対策本部等システムの中心となる部門に配置された統制台との通信が行えなくなってしまうという課題がある。   In a conventional digital radio system, when a base station is disconnected, it is placed in a terminal station located in the area of the disconnected base station and a department that is the center of the system, such as the disaster response headquarters. There is a problem that it becomes impossible to communicate with the control table.

本発明の目的は、基地局の接続が切断された場合でも、子局（端末局）と統制台の通信が行えるデジタル無線システムを提供することにある。   An object of the present invention is to provide a digital wireless system capable of communicating between a slave station (terminal station) and a control stand even when a base station is disconnected.

本発明は、統制台と、複数の基地局を備えた親局と、複数の子局を有するデジタル無線システムにおいて、前記親局には、前記複数の基地局とは別の代替無線装置が無線回線により接続され、前記複数の基地局のうち何れかの基地局が異常発生した場合、当該異常発生した基地局の代替として前記別の代替無線装置を前記統制台と無線回線で接続し、前記別の代替無線装置により、前記異常発生した際の位置登録された前記子局との無線接続を行うことを特徴とする。   The present invention relates to a digital wireless system having a control platform, a master station having a plurality of base stations, and a plurality of slave stations, wherein an alternative radio device different from the plurality of base stations is wirelessly connected to the master station. If any of the plurality of base stations is connected by a line and an abnormality occurs, the alternative wireless device is connected to the control table via a wireless line as an alternative to the base station in which the abnormality has occurred, Another alternative wireless device performs wireless connection with the slave station whose location is registered when the abnormality occurs.

また本発明は、前記基地局が異常発生したことを検知し、当該異常発生を検知した場合に前記別の代替無線装置を起動する監視制御手段を備えたことを特徴とする。   Furthermore, the present invention is characterized by comprising monitoring control means for detecting that an abnormality has occurred in the base station and activating the another alternative wireless device when the occurrence of the abnormality is detected.

本発明によれば、基地局の接続が切断された場合でも、子局（端末局）と統制台の通信が行えるデジタル無線システムを得ることができる。   ADVANTAGE OF THE INVENTION According to this invention, even when the connection of a base station is cut | disconnected, the digital wireless system which can communicate between a slave station (terminal station) and a control stand can be obtained.

図１は本発明によるデジタル無線システムの実施の形態の構成図である。図１において、図２と同一部分は同一記号で示してある。本実施の形態ではさらに基地局接続監視制御部１３と代替無線装置１４を備えた。   FIG. 1 is a configuration diagram of an embodiment of a digital radio system according to the present invention. 1, the same parts as those in FIG. 2 are denoted by the same symbols. In the present embodiment, a base station connection monitoring control unit 13 and an alternative wireless device 14 are further provided.

基地局接続監視制御部１３は、統制台８と統制局制御装置１との間に有線回線で接続し、代替無線装置１４は基地局接続監視制御部１３に有線回線で接続している。   The base station connection monitoring control unit 13 is connected between the control table 8 and the control station control device 1 via a wired line, and the alternative wireless device 14 is connected to the base station connection monitoring control unit 13 via a wired line.

基地局接続監視制御部１３は、統制局制御装置１と基地局無線送受信装置２，３，４の接続状況を内蔵する異常検知器で監視し、該異常検知器で統制局制御装置１と基地局無線送受信装置２，３，４のいずれかが切断された場合に、そのことを表す異常発生信号を発生して内蔵する起動器に送り、該起動器は代替無線装置１４を起動することで、代替無線装置１４は切断された基地局無線送受信装置２，３，４のいずれかと代替デジタル無線回線で接続することとなる。   The base station connection monitoring control unit 13 monitors the connection status between the control station control device 1 and the base station radio transmission / reception devices 2, 3, and 4 with the built-in abnormality detector and uses the abnormality detector to control the control station control device 1 and the base station. When any one of the station radio transmitting / receiving devices 2, 3 and 4 is disconnected, an abnormality occurrence signal indicating that is generated and sent to the built-in starter, and the starter activates the alternative wireless device 14. The alternative radio device 14 is connected to one of the disconnected base station radio transmission / reception devices 2, 3 and 4 via an alternative digital radio line.

通常状態での通信動作は従来のデジタル無線システムと同様である。本実施の形態では、統制局制御装置１と基地局無線送受信装置２，３，４との接続状況を基地局接続制御部１３にて監視し、統制局制御装置１と基地局無線送受信装置２，３，４のうちのいずれか例えば２との接続が切断された場合に、基地局接続監視制御部１３は代替無線装置１４を起動する。   The communication operation in the normal state is the same as that of the conventional digital radio system. In the present embodiment, the base station connection control unit 13 monitors the connection status between the control station control device 1 and the base station radio transmission / reception devices 2, 3 and 4, and the control station control device 1 and the base station radio transmission / reception device 2 are monitored. , 3, 4, for example, 2 is disconnected, the base station connection monitoring control unit 13 activates the alternative wireless device 14.

このことで、切断状態である基地局無線送受信装置２のエリアに配置された例えば端末局５−１から統制台８に発呼したときは、基地局無線送受信装置２はデジタル無線回線にて統制台８への呼出信号を送信し、代替無線装置１４は切断状態である基地局無線送受信装置２からの呼出信号を受信すると、統制台８と基地局無線送受信装置２の回線を接続し、端末局５−１と統制台８の通信を可能とする。このとき、通常状態である基地局無線送受信装置３または４から被呼した場合は、通常と同様に回線接続する。 Thus, for example, when a call is made from the terminal station 5-1 placed in the disconnected area of the base station radio transceiver apparatus 2 to the control table 8 , the base station radio transceiver apparatus 2 controls the digital radio channel. When the paging signal is transmitted to the base 8 and the alternative radio device 14 receives the paging signal from the base station radio transmitting / receiving device 2 in the disconnected state, the line between the control table 8 and the base station radio transmitting / receiving device 2 is connected to the terminal Communication between the station 5-1 and the control table 8 is enabled. At this time, when a call is received from the base station radio transmitting / receiving apparatus 3 or 4 in the normal state, the line connection is made in the same manner as usual.

また、統制台８から一斉通信等を行う場合、基地局接続監視制御部１３は統制局制御装置１に対して通常と同様に発呼要求を行うのと同時に、切断状態である基地局無線送受信装置２に対して代替無線装置１４を介して発呼要求を行う。統制局制御装置１と基地局無線送受信装置３または４が切断状態となった場合も同様の動作となる。 Further, when performing simultaneous communication from the control table 8 , the base station connection monitoring control unit 13 makes a call request to the control station control device 1 as usual, and at the same time, the base station wireless transmission / reception in the disconnected state. A call request is made to the device 2 via the alternative wireless device 14. The same operation is performed when the control station control device 1 and the base station wireless transmission / reception device 3 or 4 are disconnected.

本発明によれば、基地局無線送受信装置２，３，４のいずれかの接続が切断された場合でも、端末局４−１，…，４−ｎ，５−１，…，５−ｎ，６−１，…，６−ｎと統制台８の通信が行える。   According to the present invention, even when one of the base station radio transmission / reception devices 2, 3 and 4 is disconnected, the terminal stations 4-1, ..., 4-n, 5-1, ..., 5-n, 6-1, 6-n can communicate with the control table 8.

本発明によるデジタル無線システムの実施の形態の構成図である。1 is a configuration diagram of an embodiment of a digital radio system according to the present invention. FIG. 従来のデジタル無線システムの構成図である。It is a block diagram of the conventional digital radio system.

符号の説明Explanation of symbols

１：統制局制御装置
２，３，４：基地局無線送受信装置
５−１，…，５−ｎ，６−１，…，６−ｎ，７−１，…，７−ｎ：端末局
８：統制台
９：運用管理装置
１０：自動通信記録装置
１１ａ，１１ｂ：多重無線装置
１２ａ，１２ｂ：端局装置
１３：基地局接続監視制御部
１４：代替無線装置。 1: control station control devices 2, 3, 4: base station radio transmitting / receiving devices 5-1, ..., 5-n, 6-1, ..., 6-n, 7-1, ..., 7-n: terminal station 8 : Control table 9: Operation management device 10: Automatic communication recording device 11a, 11b: Multiplex wireless device 12a, 12b: Terminal station device 13: Base station connection monitoring control unit 14: Alternative wireless device.

Claims (2)

親局と、複数の子局を有するデジタル無線システムにおいて、
前記親局は、前記複数の子局と通常通信や指令通信を行う統制台と、各通信の回線交換接続制御を行う統制局制御装置と、当該統制局制御装置と接続され前記複数の子局と無線通信を行う複数の基地局と、前記統制局制御装置と前記複数の基地局との接続状況を監視する接続監視制御部と、当該接続監視制御部により起動される代替無線装置とを備え、
前記統制局制御装置と前記複数の基地局のうちの何れかの基地局との接続が切断された場合は、前記接続監視制御部は前記代替無線装置を起動するとともに、当該基地局は折返し通信状態へ移行し、当該基地局のエリアに配置された子局から前記統制台に発呼があった場合には、当該基地局はデジタル無線回線にて前記統制台への呼出信号を送信し、前記代替無線装置は当該基地局からの前記呼出信号を受信すると、前記統制台と当該基地局との回線を接続して前記発呼があった子局と前記統制台との通信を行うことを特徴とするデジタル無線システム。 In a digital radio system having a master station and a plurality of slave stations,
The master station is connected to the control station controller that performs normal communication and command communication with the plurality of slave stations, a control station control device that performs line switching connection control of each communication, and the control station control device, and the plurality of slave stations A plurality of base stations that perform wireless communication, a connection monitoring control unit that monitors a connection status between the control station control device and the plurality of base stations, and an alternative wireless device that is activated by the connection monitoring control unit ,
When the connection between the control station control device and any one of the plurality of base stations is disconnected, the connection monitoring control unit activates the alternative radio device, and the base station performs loopback communication. Transition to the state, if there is a call to the control table from a slave station arranged in the area of the base station, the base station transmits a call signal to the control table over a digital wireless line, When the alternative radio apparatus receives the call signal from the base station, the alternative radio apparatus communicates between the control station and the base station by connecting a line between the control base and the base station. A featured digital radio system. 前記接続監視制御部は前記統制台と前記統制局制御装置との間に有線回線で接続され、前記代替無線装置は前記接続監視制御部に有線回線で接続されていることを特徴とする請求項１記載のデジタル無線システム。 The connection monitoring control unit is connected between the control table and the control station control device via a wired line, and the alternative wireless device is connected to the connection monitoring control unit via a wired line. The digital radio system according to 1 .
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KR20140088375A (en) 2013-01-02 2014-07-10 삼성전자주식회사 Apparatus and method for recovering wireless link between base stations in wireless communication system

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