JPH077487A - Station monitoring system - Google Patents
Station monitoring systemInfo
- Publication number
- JPH077487A JPH077487A JP14723293A JP14723293A JPH077487A JP H077487 A JPH077487 A JP H077487A JP 14723293 A JP14723293 A JP 14723293A JP 14723293 A JP14723293 A JP 14723293A JP H077487 A JPH077487 A JP H077487A
- Authority
- JP
- Japan
- Prior art keywords
- station
- signal
- circuit
- call processing
- output
- 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.)
- Granted
Links
Landscapes
- Time-Division Multiplex Systems (AREA)
- Monitoring And Testing Of Transmission In General (AREA)
- Mobile Radio Communication Systems (AREA)
- Radio Relay Systems (AREA)
Abstract
Description
【0001】[0001]
【産業上の利用分野】本発明は局監視方式に関し、特に
時分割多方向多重通信システムの中継局及び子局の監視
方式に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a station monitoring system, and more particularly to a system for monitoring relay stations and slave stations of a time division multi-directional multiplex communication system.
【0002】[0002]
【従来の技術】従来、この種の局監視方式としては、例
えば、特開昭63−136848号公報に示される方式
がある。この方式は、1つの親局と複数の中継局及び子
局とから構成され、親局は各中継局及び子局と複数の無
線チャンネルを用いて通信を行い、中継局は下位の各中
継局及び子局と複数の無線チャンネルを用いて通信を行
う時分割多方向多重通信システムに適用され、中継局及
び子局の監視のために用いられている。そして、親局は
各中継局及び子局に対して下り監視用チャンネルを使用
して周期的に順次ポーリングを行い、各中継局及び子局
は自局がポーリングされた時にのみ自局の状態を上り監
視用チャンネルを使用して親局に送り返していた。2. Description of the Related Art Conventionally, as this type of station monitoring system, for example, there is a system disclosed in Japanese Patent Laid-Open No. 63-136848. This system is composed of one master station, multiple relay stations and slave stations, the master station communicates with each relay station and slave stations using multiple wireless channels, and the relay station is each subordinate relay station. It is also applied to a time division multi-directional multiplex communication system that communicates with a slave station using a plurality of wireless channels and is used for monitoring a relay station and a slave station. Then, the master station periodically polls each relay station and slave station using the downlink monitoring channel, and each relay station and slave station checks its own status only when its own station is polled. It was sending back to the master station using the upstream monitoring channel.
【0003】[0003]
【発明が解決しようとする課題】この従来の局監視方式
は、監視用チャンネルを使用して全ての中継局及び子局
に対して周期的に順次ポーリングを行っているため、中
継局及び子局の局数が多くなると、1局当たりのポーリ
ング周期が長くなり、障害検出のための周期が長くなっ
てしまうという問題がある。According to this conventional station monitoring method, all relay stations and slave stations are periodically polled sequentially using a monitoring channel, so that the relay stations and slave stations are polled. If the number of stations is large, the polling cycle per station becomes long, and the problem detection cycle becomes long.
【0004】それ故、本発明の課題は、無線信号フレー
ムフォーマット上のタイムスロットを増やすことなく中
継局及び子局に対するポーリング周期を短くすることの
できる局監視方式を提供することにある。SUMMARY OF THE INVENTION Therefore, an object of the present invention is to provide a station monitoring system which can shorten the polling period for relay stations and slave stations without increasing the time slots in the radio signal frame format.
【0005】[0005]
【課題を解決するための手段】本発明による局監視方式
は、1つの親局と複数の中継局及び子局とから構成さ
れ、親局は各中継局及び子局と複数の無線チャンネルを
用いて通信を行い、中継局は下位の各中継局及び子局と
複数の無線チャンネルを用いて通信を行う時分割多方向
多重通信システムの親局において、局監視制御回路また
は呼処理制御回路のいずれかの出力信号を制御信号切替
回路の出力信号によって選択する第1の選択回路と、前
記第1の選択回路の出力信号を中継局または子局への送
信信号の呼処理制御信号伝送用タイムスロットに時分割
多重する制御信号多重化回路と、前記局監視制御回路の
出力信号を中継局または子局への送信信号の局監視信号
伝送用タイムスロットに時分割多重する監視信号多重化
回路と、各中継局及び子局との間で無線信号を送受信す
る送受信回路と、該送受信回路で受信された中継局また
は子局からの受信信号から局監視信号伝送用タイムスロ
ットの信号を分離する監視信号分離回路と、前記受信信
号から呼処理制御信号伝送用タイムスロットの信号を分
離する制御信号分離回路と、該制御信号分離回路の出力
信号を、前記局監視制御回路または前記呼処理制御回路
のいずれに出力するかを、前記制御信号切替回路の出力
信号によって選択する第2の選択回路とを備え、前記局
監視制御回路は、通話中局検出回路の出力信号により、
局監視信号を前記第1の選択回路または前記監視信号多
重化回路のいずれかに出力し、その応答信号を前記監視
信号分離回路及び前記第2の選択回路から入力して各中
継局及び子局の監視制御を行い、前記呼処理制御回路
は、呼処理制御信号を前記第2の選択回路から入力する
と共に、前記第1の選択回路及び前記通話中局検出回路
に出力し、前記通話中局検出回路は、前記呼処理制御回
路からの入力信号により通話中の中継局及び子局を検出
し、その結果を前記局監視制御回路及び前記制御信号切
替回路に出力し、前記制御信号切替回路は、前記通話中
局検出回路の出力信号により前記第1の選択回路及び前
記第2の選択回路に対して選択信号を出力するものであ
ることを特徴とする。A station monitoring system according to the present invention comprises one master station, a plurality of relay stations and slave stations, and the master station uses each relay station and slave stations and a plurality of wireless channels. In the master station of the time division multi-directional multiplex communication system in which the relay station communicates with each of the subordinate relay stations and slave stations by using a plurality of wireless channels, either the station monitoring control circuit or the call processing control circuit And a first selection circuit for selecting the output signal of the control signal switching circuit according to the output signal of the control signal switching circuit, and a time slot for transmitting the call processing control signal of the transmission signal to the relay station or the slave station. A control signal multiplexing circuit for time division multiplexing, and a supervisory signal multiplexing circuit for time division multiplexing the output signal of the station supervisory control circuit into a time slot for station supervisory signal transmission of a transmission signal to a relay station or a slave station, Each relay station A transmission / reception circuit that transmits / receives a radio signal to / from a slave station, and a supervisory signal separation circuit that separates a signal of a station supervisory signal transmission time slot from a reception signal received by the transmission / reception circuit from a relay station or a slave station, A control signal separation circuit that separates the signal of the call processing control signal transmission time slot from the received signal, and whether the output signal of the control signal separation circuit is output to the station monitoring control circuit or the call processing control circuit And a second selection circuit for selecting an output signal of the control signal switching circuit, wherein the station monitoring control circuit outputs an output signal of the busy station detection circuit,
A station supervisory signal is output to either the first selection circuit or the supervisory signal multiplexing circuit, and the response signal is input from the supervisory signal separation circuit and the second selection circuit to each relay station and slave station. And the call processing control circuit inputs the call processing control signal from the second selection circuit and outputs the call processing control signal to the first selection circuit and the talking station detecting circuit to communicate with the talking station. The detection circuit detects a relay station and a slave station in a call by an input signal from the call processing control circuit, outputs the result to the station monitoring control circuit and the control signal switching circuit, and the control signal switching circuit is The selection signal is output to the first selection circuit and the second selection circuit according to the output signal of the in-call station detection circuit.
【0006】[0006]
【実施例】次に、本発明について図面を参照して説明す
る。図1は、本発明の一実施例を示す親局のブロック図
である。図1において、第1の選択回路10は、局監視
制御回路80または呼処理制御回路90のいずれかの出
力信号を、制御信号切替回路110の出力信号によって
選択する。制御信号多重化回路20は、第1の選択回路
10の出力信号を中継局または子局への送信信号の呼処
理制御信号伝送用タイムスロットに時分割多重する。監
視信号多重化回路30は、局監視制御回路80の出力信
号を中継局または子局への送信信号の局監視信号伝送用
タイムスロットに時分割多重する。送受信回路40は、
各中継局及び子局との間で無線信号を送受信する。DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, the present invention will be described with reference to the drawings. FIG. 1 is a block diagram of a master station showing an embodiment of the present invention. In FIG. 1, the first selection circuit 10 selects an output signal of either the station monitoring control circuit 80 or the call processing control circuit 90 according to the output signal of the control signal switching circuit 110. The control signal multiplexing circuit 20 time-division-multiplexes the output signal of the first selection circuit 10 into a time slot for call processing control signal transmission of a transmission signal to a relay station or a slave station. The supervisory signal multiplexing circuit 30 time-division-multiplexes the output signal of the station supervisory control circuit 80 with the time slot for station supervisory signal transmission of the transmission signal to the relay station or the slave station. The transceiver circuit 40 is
Radio signals are transmitted and received between each relay station and each slave station.
【0007】監視信号分離回路50は、送受信回路40
で受信された中継局または子局からの受信信号から局監
視信号伝送用タイムスロットの信号を分離する。制御信
号分離回路60は、中継局または子局からの受信信号か
ら呼処理制御信号伝送用タイムスロットの信号を分離す
る。第2の選択回路70は、制御信号分離回路60の出
力信号を、局監視制御回路80または呼処理制御回路9
0のいずれに出力するかを、制御信号切替回路110の
出力信号によって選択する。局監視制御回路80は、通
話中局検出回路100の出力信号により、局監視信号を
第1の選択回路10または監視信号多重化回路30のい
ずれかに出力し、その応答信号を監視信号分離回路50
及び第2の選択回路70から入力して各中継局及び子局
の監視制御を行う。The supervisory signal separation circuit 50 is a transmission / reception circuit 40.
The signal of the time slot for transmitting the station supervisory signal is separated from the received signal from the relay station or the slave station received in (1). The control signal separation circuit 60 separates the signal of the call processing control signal transmission time slot from the received signal from the relay station or the slave station. The second selection circuit 70 outputs the output signal of the control signal separation circuit 60 to the station monitoring control circuit 80 or the call processing control circuit 9
The output signal of the control signal switching circuit 110 selects which of 0 is output. The station supervisory control circuit 80 outputs the station supervisory signal to either the first selection circuit 10 or the supervisory signal multiplex circuit 30 according to the output signal of the busy station detector circuit 100, and outputs the response signal thereof to the supervisory signal separation circuit. Fifty
And from the second selection circuit 70 to monitor and control each relay station and slave station.
【0008】呼処理制御回路90は、呼処理制御信号を
第1の選択回路10及び通話中局検出回路100に出力
する。通話中局検出回路100は、呼処理制御回路90
からの入力信号により通話中の中継局及び子局を検出
し、その結果を局監視制御回路80及び制御信号切替回
路110に出力する。制御信号切替回路110は、通話
中局検出回路100の出力信号により第1の選択回路1
0及び第2の選択回路70に対して選択信号を出力す
る。The call processing control circuit 90 outputs a call processing control signal to the first selection circuit 10 and the busy station detection circuit 100. The talking station detection circuit 100 includes a call processing control circuit 90.
The relay station and the slave station in the call are detected by the input signal from the terminal and the result is output to the station monitoring control circuit 80 and the control signal switching circuit 110. The control signal switching circuit 110 uses the output signal of the busy station detection circuit 100 to output the first selection circuit 1
A selection signal is output to 0 and the second selection circuit 70.
【0009】次に、動作について説明する。図2は、親
局と各中継局及び子局との間の無線信号フレームフォー
マットであり、(B)は(A)の一部を拡大した図であ
る。まず、通話中でない中継局及び子局に対しては、第
1の選択回路10では呼処理制御回路90から出力され
る呼処理制御信号が選択されており、呼処理が発生した
時点で呼処理制御信号が制御信号多重化回路20に出力
される。制御信号多重化回路20では、第1の選択回路
10の出力信号が、図2(A)のデータ伝送用タイムス
ロットTS1,TS2,…のうちの図2(B)の呼処理
制御信号伝送用タイムスロットS1に時分割多重され
る。また、局監視制御回路80から出力される局監視信
号は、監視信号多重化回路30により、図2(A)の局
監視信号伝送用タイムスロットTS0に時分割多重化さ
れる。Next, the operation will be described. FIG. 2 shows a wireless signal frame format between the master station and each relay station and slave station, and FIG. 2B is an enlarged view of a part of FIG. First, for the relay station and the slave station that are not in a call, the call processing control signal output from the call processing control circuit 90 is selected in the first selection circuit 10, and the call processing is performed when the call processing occurs. The control signal is output to the control signal multiplexing circuit 20. In the control signal multiplexing circuit 20, the output signal of the first selection circuit 10 is for the call processing control signal transmission of FIG. 2 (B) of the data transmission time slots TS1, TS2 ,. It is time-division multiplexed in the time slot S1. Further, the station supervisory signal output from the station supervisory control circuit 80 is time-division multiplexed by the supervisory signal multiplexing circuit 30 into the station supervisory signal transmission time slot TS0 of FIG.
【0010】送受信回路40は、呼処理制御信号及び局
監視信号が多重化された信号を各中継局及び子局に送信
し、逆に各中継局及び子局から呼処理制御信号及び局監
視信号が多重化された信号を受信する。監視信号分離回
路50は、送受信回路40にて受信した信号より図2
(A)の局監視信号伝送用タイムスロットTS0の信
号、即ち局監視信号に対する応答信号を分離し、局監視
制御回路80に出力する。制御信号分離回路60は、送
受信回路40にて受信した信号より図2(B)の呼処理
制御信号伝送用タイムスロットS1の信号、即ち呼処理
制御信号を分離し、第2の選択回路70に出力する。第
2の選択回路70では、呼処理制御信号を呼処理制御回
路90に出力し、呼処理制御回路90にて発着呼制御処
理が行われる。The transmission / reception circuit 40 transmits a signal in which the call processing control signal and the station supervisory signal are multiplexed to each relay station and the slave station, and conversely, the call processing control signal and the station supervisory signal from each relay station and the slave station. Receives the multiplexed signal. The monitoring signal separation circuit 50 uses the signals received by the transmission / reception circuit 40 as shown in FIG.
The signal of the station monitoring signal transmission time slot TS0 of (A), that is, the response signal to the station monitoring signal is separated and output to the station monitoring control circuit 80. The control signal separation circuit 60 separates the signal of the call processing control signal transmission time slot S1 in FIG. 2B, that is, the call processing control signal from the signal received by the transmission / reception circuit 40, and the separated signal is sent to the second selection circuit 70. Output. The second selection circuit 70 outputs a call processing control signal to the call processing control circuit 90, and the call processing control circuit 90 performs incoming / outgoing call control processing.
【0011】一方、呼処理制御回路90にて発着呼制御
処理が行われて通話中の中継局及び子局に対しては、通
話中局検出回路100で通話中であることが検出され、
その出力信号により制御信号切替回路110から図2
(B)の呼処理制御信号伝送用タイムスロットS1を、
通話中必要ではない呼処理制御信号用から局監視信号用
として使用するための切り替え信号を出力する。即ち、
第1の選択回路10では、局監視信号制御回路80から
出力される局監視信号が選択され、図2(B)の呼処理
制御信号伝送用タイムスロットS1には局監視信号が時
分割多重化される。また、受信側も、制御信号分離回路
60で分離した図2(B)の呼処理制御信号伝送用タイ
ムスロットS1の信号は監視信号の応答信号であり、第
2の選択回路70に送信された後局監視制御回路80に
出力される。On the other hand, the call processing control circuit 90 performs the incoming and outgoing call control processing, and the in-call station detection circuit 100 detects that the relay station and the slave station in the call are in a call.
The output signal causes the control signal switching circuit 110 to output the signal shown in FIG.
The time slot S1 for call processing control signal transmission of (B) is
It outputs a switching signal for use from a call processing control signal that is not required during a call to a station supervisory signal. That is,
In the first selection circuit 10, the station supervisory signal output from the station supervisory signal control circuit 80 is selected, and the station supervisory signal is time-division multiplexed in the call processing control signal transmission time slot S1 of FIG. 2B. To be done. Also on the receiving side, the signal of the time slot S1 for call processing control signal transmission of FIG. 2B separated by the control signal separation circuit 60 is a response signal of the supervisory signal and is transmitted to the second selection circuit 70. It is output to the rear station monitoring control circuit 80.
【0012】[0012]
【発明の効果】以上説明したように本発明による局監視
方式は、通話中の中継局及び子局に対しては、不要とな
ったデータ伝送用タイムスロットのうちの呼処理制御信
号伝送用タイムスロットを使用して局監視を行い、また
局監視信号伝送用タイムスロットを使用した周期ポーリ
ングを、通話を行っていない中継局及び子局に対しての
み行うことにより、無線信号フレームフォーマット上の
タイムスロットを増やすことなく中継局及び子局に対す
るポーリング周期を短くし、中継局及び子局の障害検出
を短時間で行うことができる。As described above, the station monitoring system according to the present invention provides the call processing control signal transmission time in the unnecessary data transmission time slot to the relay station and the slave station during a call. By monitoring stations using slots, and performing periodic polling using time slots for transmitting station monitoring signals only to relay stations and slave stations that are not in communication, the time in the wireless signal frame format is The polling cycle for the relay station and the slave station can be shortened without increasing the slots, and the failure detection of the relay station and the slave station can be performed in a short time.
【図面の簡単な説明】[Brief description of drawings]
【図1】本発明による局監視方式の実施例を示す親局の
ブロック図である。FIG. 1 is a block diagram of a master station showing an embodiment of a station monitoring system according to the present invention.
【図2】親局と各中継局及び子局間の無線信号フレーム
フォーマット(図A)とその一部を拡大(図B)して示
した図である。FIG. 2 is a diagram showing a radio signal frame format (FIG. A) between a master station, each relay station, and a slave station and a part of it enlarged (FIG. B).
10 第1の選択回路 20 制御信号多重化回路 30 監視信号多重化回路 40 送受信回路 50 監視信号分離回路 60 制御信号分離回路 70 第2の選択回路 80 局監視制御回路 90 呼処理制御回路 100 通話中局検出回路 110 制御信号切替回路 10 first selection circuit 20 control signal multiplexing circuit 30 supervisory signal multiplexing circuit 40 transmission / reception circuit 50 supervisory signal separation circuit 60 control signal separation circuit 70 second selection circuit 80 station supervisory control circuit 90 call processing control circuit 100 busy Station detection circuit 110 Control signal switching circuit
Claims (2)
ら構成され、親局は各中継局及び子局と複数の無線チャ
ンネルを用いて通信を行い、中継局は下位の各中継局及
び子局と複数の無線チャンネルを用いて通信を行う時分
割多方向多重通信システムの親局において、局監視制御
回路または呼処理制御回路のいずれかの出力信号を制御
信号切替回路の出力信号によって選択する第1の選択回
路と、前記第1の選択回路の出力信号を中継局または子
局への送信信号の呼処理制御信号伝送用タイムスロット
に時分割多重する制御信号多重化回路と、前記局監視制
御回路の出力信号を中継局または子局への送信信号の局
監視信号伝送用タイムスロットに時分割多重する監視信
号多重化回路と、各中継局及び子局との間で無線信号を
送受信する送受信回路と、該送受信回路で受信された中
継局または子局からの受信信号から局監視信号伝送用タ
イムスロットの信号を分離する監視信号分離回路と、前
記受信信号から呼処理制御信号伝送用タイムスロットの
信号を分離する制御信号分離回路と、該制御信号分離回
路の出力信号を、前記局監視制御回路または前記呼処理
制御回路のいずれに出力するかを、前記制御信号切替回
路の出力信号によって選択する第2の選択回路とを備
え、前記局監視制御回路は、通話中局検出回路の出力信
号により、局監視信号を前記第1の選択回路または前記
監視信号多重化回路のいずれかに出力し、その応答信号
を前記監視信号分離回路及び前記第2の選択回路から入
力して各中継局及び子局の監視制御を行い、前記呼処理
制御回路は、呼処理制御信号を前記第2の選択回路から
入力すると共に、前記第1の選択回路及び前記通話中局
検出回路に出力し、前記通話中局検出回路は、前記呼処
理制御回路からの入力信号により通話中の中継局及び子
局を検出し、その結果を前記局監視制御回路及び前記制
御信号切替回路に出力し、前記制御信号切替回路は、前
記通話中局検出回路の出力信号により前記第1の選択回
路及び前記第2の選択回路に対して選択信号を出力する
ものであることを特徴とする局監視方式。1. A master station comprises a master station, a plurality of relay stations and slave stations, the master station communicates with the relay stations and slave stations using a plurality of wireless channels, and the relay station is a subordinate relay station. In the master station of a time division multi-directional multiplex communication system that communicates with a station and a slave station using a plurality of wireless channels, the output signal of the control signal switching circuit is the output signal of either the station monitoring control circuit or the call processing control circuit. A first selection circuit for selecting the output signal from the first selection circuit, and a control signal multiplexing circuit for time division multiplexing the output signal of the first selection circuit into a time slot for transmitting a call processing control signal of a transmission signal to a relay station or a slave station, A supervisory signal multiplexing circuit that time-division-multiplexes the output signal of the station supervisory control circuit in a time slot for station supervisory signal transmission of a transmission signal to a relay station or a slave station, and a radio signal between each relay station and slave station Send and receive times Channel, a supervisory signal separation circuit for separating a signal of a station supervisory signal transmission time slot from a reception signal from the relay station or a slave station received by the transmission / reception circuit, and a time slot for call processing control signal transmission from the reception signal Of the control signal separation circuit for separating the control signal and the output signal of the control signal separation circuit is selected by the output signal of the control signal switching circuit to the station monitoring control circuit or the call processing control circuit. The station monitoring control circuit outputs a station monitoring signal to either the first selecting circuit or the monitoring signal multiplexing circuit according to the output signal of the busy station detecting circuit. The response signal is input from the supervisory signal separation circuit and the second selection circuit to monitor and control each relay station and slave station, and the call processing control circuit sends the call processing control signal to the second The input from the selection circuit and the output to the first selection circuit and the in-call station detection circuit. The in-call station detection circuit receives the input signal from the call processing control circuit, and the relay station and the slave station in the call. Is detected, and the result is output to the station monitoring control circuit and the control signal switching circuit, and the control signal switching circuit uses the output signal of the in-call station detection circuit to output the first selection circuit and the second selection circuit. A station monitoring system characterized by outputting a selection signal to a selection circuit.
記第1の選択回路では、通話中でない中継局及び子局に
対しては、前記呼処理制御回路から出力される前記呼処
理制御信号が選択され、通話中の中継局及び子局に対し
ては、前記局監視信号制御回路から出力される前記局監
視信号が選択されることを特徴とする局監視方式。2. The station monitoring method according to claim 1, wherein the first selection circuit outputs the call processing control signal output from the call processing control circuit to a relay station and a slave station that are not in a call. Is selected, and the station monitoring signal output from the station monitoring signal control circuit is selected for the relay station and the slave station during a call.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP14723293A JPH07114392B2 (en) | 1993-06-18 | 1993-06-18 | Station monitoring system |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP14723293A JPH07114392B2 (en) | 1993-06-18 | 1993-06-18 | Station monitoring system |
Publications (2)
Publication Number | Publication Date |
---|---|
JPH077487A true JPH077487A (en) | 1995-01-10 |
JPH07114392B2 JPH07114392B2 (en) | 1995-12-06 |
Family
ID=15425564
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP14723293A Expired - Lifetime JPH07114392B2 (en) | 1993-06-18 | 1993-06-18 | Station monitoring system |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH07114392B2 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH08204668A (en) * | 1995-01-27 | 1996-08-09 | Nec Corp | Station monitor system |
-
1993
- 1993-06-18 JP JP14723293A patent/JPH07114392B2/en not_active Expired - Lifetime
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH08204668A (en) * | 1995-01-27 | 1996-08-09 | Nec Corp | Station monitor system |
Also Published As
Publication number | Publication date |
---|---|
JPH07114392B2 (en) | 1995-12-06 |
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