JP5071934B2 - Emergency telephone monitoring device - Google Patents

Emergency telephone monitoring device Download PDF

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JP5071934B2
JP5071934B2 JP2008014313A JP2008014313A JP5071934B2 JP 5071934 B2 JP5071934 B2 JP 5071934B2 JP 2008014313 A JP2008014313 A JP 2008014313A JP 2008014313 A JP2008014313 A JP 2008014313A JP 5071934 B2 JP5071934 B2 JP 5071934B2
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貴史 吉津
良夫 古田
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NEC Engineering Ltd
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Description

本発明は、非常電話監視装置、特に、高速道路の路肩等に設置されてドライバの緊急連絡のために供される非常電話の非常電話監視装置に関する。   The present invention relates to an emergency telephone monitoring apparatus, and more particularly, to an emergency telephone monitoring apparatus for an emergency telephone that is installed on a shoulder of an expressway or the like and used for an emergency contact of a driver.

従来のこの種の非常電話監視装置として、通話信号が入力している期間を除き、予め定めた時間間隔で時間信号を入力して、音声ラインの電話機側の回線断、地気混線および電池混線を検出し、また非常電話機がオフフックしたときの通話信号の入力が停止すると音声ラインの電話機側の絶縁不良を検出する「線路監視装置」が知られている(例えば、特許文献1参照)。   As a conventional emergency telephone monitoring device of this type, a time signal is input at a predetermined time interval except during a period in which a call signal is input, and the line on the telephone side of the voice line is disconnected, the ground is mixed, and the battery is mixed Further, there is known a “line monitoring device” that detects an insulation failure on the telephone side of a voice line when input of a call signal when an emergency telephone goes off-hook is stopped (see, for example, Patent Document 1).

また、商用電源が供給されていない場所に設置された非常電話機へ試験用PB信号(プッシュボタン信号)を送信して、その応答PB信号の有無により非常電話機の停電状態を監視するに際し、応答PB信号および試験用PB信号の送受信に必要な電源非常電話機へ供給する「非常電話機の線路監視装置」も公知である(例えば、特許文献2参照)。   In addition, when a test PB signal (push button signal) is transmitted to an emergency telephone installed in a place where commercial power is not supplied and the power failure state of the emergency telephone is monitored based on the presence or absence of the response PB signal, the response PB An “emergency telephone line monitoring device” that supplies power to an emergency telephone for transmitting and receiving signals and a test PB signal is also known (see, for example, Patent Document 2).

特開平4−172049号(第2頁、図1)Japanese Patent Laid-Open No. 4-172049 (2nd page, FIG. 1) 特開平10−126501号(第2頁、図1)JP-A-10-126501 (2nd page, FIG. 1)

しかしながら、上述した特許文献4記載の技術では、線路の状態監視(回線断・地気混線・電池混線・絶縁不良)を監視するのみであって、非常電話機の故障監視機能は備えていないため、非常電話の故障監視は、センター側の外部装置から手動で、非常電話の特番(試験モード用の番号)に1台1台ダイヤルを行い、非常電話からのPB応答信号を耳で聞き、それが期待するPB信号音である場合に「正常」、無音または期待するPB信号でない場合に「故障」と判断するしかない。   However, in the technique described in Patent Document 4 described above, only monitoring of line status (line disconnection, ground crossing, battery crossing, insulation failure) is provided, and the emergency telephone failure monitoring function is not provided. Emergency telephone failure monitoring is performed manually from an external device on the center side, dialing one emergency call special number (number for test mode) one by one and listening to the PB response signal from the emergency telephone. If it is an expected PB signal sound, it can only be judged as “normal”, and if there is no sound or an expected PB signal, it is judged as “failure”.

このことにより、故障検出ミスや誤検出があったり、1台の非常電話の故障監視を行うにも最低10秒程度かかり、数百台もの非常電話が接続されている場合には全数の故障監視するのには、何時間もかかり、故障監視間隔を短くすることはできない。更に、センター側からの非常電話の故障監視中に他の非常電話から通話をする場合、故障監視中の約10秒間は試験信号と混線するという問題もある。   As a result, it takes at least 10 seconds to detect a fault or misdetection, or to monitor the failure of one emergency telephone. If hundreds of emergency telephones are connected, the total number of faults is monitored. It takes many hours to do so, and the fault monitoring interval cannot be shortened. Furthermore, when a call is made from another emergency telephone while monitoring the failure of the emergency telephone from the center side, there is a problem that the test signal is mixed for about 10 seconds during the failure monitoring.

また、特許文献2記載の技術では、試験用のPB信号を各非常電話機に対して順次に送信して、その応答信号の有無を確認することにより非常電話機の停電状態の監視を行なうが、PB信号の送受信が装置により行なわれるのか、人手によるものかは必ずしも明瞭とはいえない。これは、この技術が、商用電源が供給できない場所に設置された非常電話機への電源供給を目的としていることに由来しているものと思われる。人手によるなら特許文献1記載の技術と同様な問題点がある。   In the technique described in Patent Document 2, a power failure state of an emergency telephone is monitored by sequentially transmitting a test PB signal to each emergency telephone and confirming the presence or absence of the response signal. It is not always clear whether a signal is transmitted / received by a device or manually. This seems to be derived from the fact that this technology aims to supply power to emergency telephones installed in places where commercial power cannot be supplied. If it is done manually, there is a problem similar to the technique described in Patent Document 1.

更に、たとえPB信号の送受信が装置により行なわれるとしても、通常の通話との優先順位については言及が無いので、PB信号の送受信が強行されると、通話が妨げられることになるという懸念がある。   Furthermore, even if the transmission / reception of the PB signal is performed by the apparatus, there is no mention of the priority order with respect to the normal call, and therefore there is a concern that if the transmission / reception of the PB signal is forced, the call will be hindered. .

そこで、本発明の目的は、非常電話の故障監視を自動化して、非常電話の故障検出ミスや誤検出を無くし故障検出の精度を上げ、故障監視時間の短縮と監視間隔の短縮化すると共に、試験時において通話を妨げない非常電話監視装置を提供することにある。   Therefore, the purpose of the present invention is to automate emergency telephone fault monitoring, eliminate fault detection errors and false detections of emergency telephones, increase the accuracy of fault detection, shorten the fault monitoring time and the monitoring interval, An object of the present invention is to provide an emergency telephone monitoring device that does not hinder calls during testing.

本発明の非常電話監視装置は、複数の非常電話と試験回線および通話用の非常回線で接続された非常電話監視装置において、予め設定された時間間隔で非常電話に対する試験発呼開始指示を順次に行う手段と、試験発呼開始指示を受けると該非常電話監視装置が線路監視モードなら試験回線経由で監視用PB信号を非常電話へ向けて順次に送出する手段と、監視用PB信号に対する非常電話からのPB応答信号を非常回線経由で受けると検査し、その結果による故障情報を非常電話の管理事務所に設置されているセンター装置へ送出する手段とを有することを特徴とする。   The emergency telephone monitoring apparatus according to the present invention sequentially issues a test call start instruction to an emergency telephone at predetermined time intervals in an emergency telephone monitoring apparatus connected to a plurality of emergency telephones by a test line and an emergency line for calls. Means for sequentially sending monitoring PB signals to the emergency telephone via the test line when the emergency call monitoring device is in line monitoring mode upon receiving a test call start instruction, and an emergency call for the monitoring PB signal And a means for sending a failure information based on the result to a center device installed in an emergency telephone management office.

また、本発明の非常電話監視装置は、複数の非常電話と試験回線および通話用の非常回線で接続された非常電話監視装置において、非常回線に接続され当該非常電話のOFFフックまたはONフックによって通話モードと線路監視モードを切り替えるモード切替手段と、モード切替手段を監視して通話モード/線路監視モードの状態を把握し非常電話の通話制御を行う通話制御手段と、予め設定された時間間隔で非常電話に対する試験発呼開始指示を順次に行う試験発呼手段と、試験発呼手段から試験発呼開始指示を受けると通話制御手段に対し現状のモードの情報を要求し線路監視モードなら監視用PB信号送出指示を出力する監視装置制御手段と、監視装置制御手段から監視用PB信号送出指示を受けると監視用PB信号を試験回線経由で非常電話へ向けて順次に送出するPB信号送出手段と、監視用PB信号に対する非常電話からのPB応答信号をモード切替手段経由で受けると検査し監視装置制御手段に通知するPB信号検出手段とを含み、監視装置制御手段は検査の結果による非常電話の故障情報を通話制御手段経由で非常電話の管理事務所に設置されているセンター装置へ送出することを特徴とする。   The emergency telephone monitoring apparatus of the present invention is an emergency telephone monitoring apparatus that is connected to a plurality of emergency telephones by a test line and an emergency line for calls, and is connected to the emergency line and is connected by an OFF hook or an ON hook of the emergency telephone. Mode switching means for switching between the mode and the line monitoring mode, call control means for monitoring the mode switching means to grasp the state of the call mode / line monitoring mode and controlling the call of the emergency telephone, and emergency at a preset time interval Test call means for sequentially giving a test call start instruction to the telephone, and when a test call start instruction is received from the test call means, information on the current mode is requested to the call control means. Monitoring device control means for outputting a signal transmission instruction, and when receiving a monitoring PB signal transmission instruction from the monitoring device control means, the monitoring PB signal is passed through the test line. PB signal transmission means for sequentially sending to the emergency telephone, and PB signal detection means for inspecting and notifying the monitoring apparatus control means when the PB response signal from the emergency telephone for the monitoring PB signal is received via the mode switching means. In addition, the monitoring device control means sends out the emergency telephone failure information based on the inspection result to the center device installed in the emergency telephone management office via the call control means.

更に、本発明の非常電話監視装置は、試験回線および通話用の非常回線の線路監視を行
う線路監視手段を備え、モード切替手段は、非常電話がOFFフックなら非常回線を通話制御手段に接続し、ONフックなら非常回線を線路監視手段に接続することを特徴とする
Furthermore, the emergency telephone monitoring device of the present invention comprises line monitoring means for monitoring the test line and the emergency line for calls, and the mode switching means connects the emergency line to the call control means if the emergency telephone is OFF hook. In the case of an ON hook, the emergency line is connected to the line monitoring means .

更に、本発明の非常電話監視装置は、監視装置制御手段からの非常電話の故障情報を蓄積する故障情報蓄積手段を備えたことを特徴とする。   Furthermore, the emergency telephone monitoring apparatus of the present invention is characterized by comprising failure information storage means for storing emergency telephone failure information from the monitoring apparatus control means.

更に、本発明の非常電話監視装置は、非常回線および試験回線は全ての非常電話に接続され、監視用PB信号は非常電話個別認識用のIDと応答信号に使用する回線番号を含み、PB応答信号は非常電話個別認識用のIDを含むことを特徴とする。   In the emergency telephone monitoring apparatus of the present invention, the emergency line and the test line are connected to all emergency telephones, and the monitoring PB signal includes an ID for individually identifying the emergency telephone and a line number used for a response signal. The signal includes an ID for individually identifying an emergency telephone.

本発明の第1の効果は、非常電話の自動故障監視が可能となり、監視工数の削減がされることである。その理由は、従来の非常電話監視装置では自動での故障監視機能がなかったが、試験発呼手段とPB信号送出手段、PB信号検出手段を具備したことにより、試験発呼手段より自動的に試験発呼が起動されPB信号送出手段から監視用のPB信号を非常電話に対し送出し、その応答をPB信号検出手段で監視することによって、自動的に非常電話の故障監視ができるようになったため、従来人間が1台1台の非常電話にPB信号を送出し手動で行なわれていた非常電話の監視が自動化されたため、所要時間は従来の1/10、人手は約1人から0となり、監視工数の削減がなされることにある。   The first effect of the present invention is that automatic failure monitoring of an emergency telephone becomes possible, and the number of monitoring steps can be reduced. The reason for this is that the conventional emergency telephone monitoring device does not have an automatic failure monitoring function. However, the test call means automatically includes the test call means, PB signal transmission means, and PB signal detection means. When the test call is activated, a monitoring PB signal is sent from the PB signal sending means to the emergency telephone, and the response is monitored by the PB signal detecting means, so that the emergency telephone failure can be automatically monitored. As a result, the monitoring of emergency calls, which were manually performed by sending a PB signal to a single emergency call by a human being, has been automated. The monitoring man-hours are to be reduced.

本発明の第2の効果は、非常電話の故障発見を早くして非常電話システム全体の信頼性の向上が図れることである。その理由は、第1の効果により1台あたりの監視開始から終了までに要する時間が短くなり、全数の故障監視も短時間で済むため、1台あたりの故障監視の間隔を今までより頻繁にすることができる。このため非常電話の故障がいち早く検知でき、修理の対応も可能となるため、非常電話システム全体としての信頼性の向上が計れることにある。   The second effect of the present invention is that it is possible to improve the reliability of the entire emergency telephone system by expediting the discovery of an emergency telephone failure. The reason for this is that the time required for starting and ending monitoring for each unit is shortened due to the first effect, and the total number of failure monitoring can be done in a short time. can do. For this reason, failure of the emergency telephone can be detected promptly and repairs can be made. Therefore, the reliability of the entire emergency telephone system can be improved.

本発明の第3の効果は、監視洩れをなくすことができることにある。その理由は、非常電話監視装置が自動で自装置に接続されている全数の非常電話の故障監視を行うからである。   The third effect of the present invention is that it is possible to eliminate monitoring omissions. This is because the emergency telephone monitoring device automatically monitors the failure of all emergency telephones connected to the own device.

本発明の第4の効果は、以上の効果を得るための故障監視に際して、通話を妨げないことがないということである。その理由は、非常電話のOFFフックまたはONフックによって通話モードと線路監視モードを切り替えるモード切替手段と、モード切替手段を監視して通話モード/線路監視モードの状態を把握し非常電話の通話制御を行う通話制御手段と、試験発呼開始指示を受けると通話制御手段に対し現状のモードの情報を要求し線路監視モードなら監視用PB信号送出指示を出力する監視装置制御手段を設けたからである。   The fourth effect of the present invention is that the telephone call is not hindered in failure monitoring for obtaining the above effect. The reason for this is that mode switching means for switching between the call mode and the line monitoring mode by the off-hook or on-hook of the emergency telephone, and monitoring the mode switching means to grasp the state of the call mode / line monitoring mode to control the emergency telephone call. This is because there is provided a call control means for performing and a monitoring device control means for requesting the call control means for information on the current mode upon receiving a test call start instruction and outputting a monitoring PB signal transmission instruction in the line monitoring mode.

次に、本発明の実施の形態について図面を参照して詳細に説明する。
[構成の説明]
図1は本発明の非常電話監視装置の一実施例を示す。この非常電話監視装置100は、高速道路の路肩等に設置されているN台の非常電話D1〜DNの故障監視を非常電話監視装置100で行う。非常電話監視装置100は管理事務所のセンター装置9と接続されている。
Next, embodiments of the present invention will be described in detail with reference to the drawings.
[Description of configuration]
FIG. 1 shows an embodiment of the emergency telephone monitoring apparatus of the present invention. The emergency telephone monitoring apparatus 100 performs failure monitoring of N emergency telephones D1 to DN installed on the shoulder of an expressway or the like with the emergency telephone monitoring apparatus 100. The emergency telephone monitoring device 100 is connected to the center device 9 of the management office.

非常電話監視装置100は、通話制御手段1,線路監視手段2,モード切替手段3および
監視装置制御手段4から成る基盤構成に、PB信号送出手段5,PB信号検出手段6,試
験発呼手段7および故障情報蓄積手段8を付加した構成となっている。
The emergency telephone monitoring device 100 includes a PB signal sending means 5, a PB signal detecting means 6, a test calling means 7 in a basic configuration comprising a call control means 1, a line monitoring means 2, a mode switching means 3 and a monitoring device control means 4. In addition, a failure information storage unit 8 is added.

通話制御手段1は、センター装置9からの音声データ信号を非常電話D1〜DNのインターフェイス信号となるアナログ信号に変換する機能と、非常電話D1〜DNの通話制御を行う機能とを有する。通話制御手段1は、モード切替手段3を監視しており、通話モード/線路監視モードの状態を把握している。   The call control means 1 has a function of converting a voice data signal from the center device 9 into an analog signal that becomes an interface signal of the emergency telephones D1 to DN, and a function of performing call control of the emergency telephones D1 to DN. The call control unit 1 monitors the mode switching unit 3 and grasps the state of the call mode / line monitoring mode.

モード切替手段3は、リレー回路を有し、非常電話D1〜DNのOFFフック(受話器をあげた状態)またはONフック(受話器を置いた状態)によって、非常電話1〜Nが接続されている回線を通話制御手段1に接続するか、線路監視手段2に接続するかを切り替える。 The mode switching means 3 has a relay circuit and is a line to which the emergency telephones 1 to N are connected by an OFF hook (a state where the handset is raised) or an ON hook (a state where the handset is placed) of the emergency telephones D1 to DN . Is connected to the call control means 1 or to the line monitoring means 2.

非常電話D1〜DNのそれぞれは、2つの2W非常回線L1,L2を介してモード切替手段3のリレー回路と接続され、また2W試験回線L3を介して通話制御手段1と接続されている。これら回線L1,L2,L3は終端抵抗R1,R2,R3に接続されている。2Wとは2線式の意である。 Each of the emergency telephones D1 to DN is connected to the relay circuit of the mode switching means 3 via two 2W emergency lines L1 and L2, and is connected to the call control means 1 via a 2W test line L3. These lines L1, L2, and L3 are connected to termination resistors R1, R2, and R3. 2W means a two-wire system.

線路監視手段2は、2W非常回線L1,L2および2W試験回線L3を介して非常電話D1〜DNの線路監視を行い、その結果を監視装置制御手段4に伝える。   The line monitoring means 2 performs line monitoring of the emergency telephones D1 to DN via the 2W emergency lines L1, L2 and the 2W test line L3, and transmits the result to the monitoring device control means 4.

監視装置制御手段4は線路監視手段2の制御を行うと共に、PB信号送出手段5とPB信号検出手段6および故障情報蓄積手段8の制御を行う。また、通話制御手段1に対し現状のモード(通話モード/線路監視モード)の情報を要求し試験発呼が可能かどうかを確認する。   The monitoring device control means 4 controls the line monitoring means 2 and controls the PB signal sending means 5, the PB signal detection means 6 and the failure information storage means 8. Further, the call control means 1 is requested for information on the current mode (call mode / line monitoring mode) to check whether a test call can be made.

試験発呼手段7は、非常電話D1〜DNの個別認識用のIDを記憶しており、プログラムまたは設定スイッチで予め設定された時間(例えば、1〜60分)間隔で監視装置制御手段4に対して、非常電話D1〜DNに対する試験発呼開始指示を順次に行う。   The test calling unit 7 stores IDs for individually identifying the emergency telephones D1 to DN, and sends them to the monitoring device control unit 4 at intervals (for example, 1 to 60 minutes) preset by a program or a setting switch. On the other hand, test call start instructions are sequentially given to the emergency telephones D1 to DN.

PB信号送出手段5は、監視装置制御手段4から監視用PB信号送出指示を受けると監視用PB信号を非常電話D1〜DNへ向けて順次に送出する。   When receiving the monitoring PB signal transmission instruction from the monitoring device control unit 4, the PB signal transmission unit 5 sequentially transmits the monitoring PB signal toward the emergency telephones D1 to DN.

PB信号検出手段6は、非常電話D1〜DNからのPB応答信号を検査し、編集して監
視装置制御手段4に通知する。
The PB signal detection means 6 inspects the PB response signals from the emergency telephones D1 to DN, edits them, and notifies the monitoring apparatus control means 4 of them.

故障情報蓄積手段8は、監視装置制御手段4からの線路監視の結果および非常電話D1〜DNの故障情報を蓄積する。なお、故障情報蓄積手段8を設けない構成を採ることもできる。
[動作の説明]
次に、以上のように構成された本非常電話監視装置の動作について説明する。
The failure information storage unit 8 stores the line monitoring result from the monitoring device control unit 4 and the failure information of the emergency telephones D1 to DN. A configuration in which the failure information storage means 8 is not provided can also be adopted.
[Description of operation]
Next, the operation of the emergency telephone monitoring apparatus configured as described above will be described.

モード切替手段3のリレー回路は、電源立ち上がり時と、通話をしていない通常時は、
図1に示すように、非常電話D1〜DNからの回線を線路監視手段2側に接続する。線路
監視手段2は、監視装置制御手段4による制御の下、リレー回路,2W非常回線L1およ
び終端抵抗R1の通電ループによって2W非常回線L1の状態(回線断,地気混線,電池
混線,絶縁不良等)を監視し、リレー回路,2W非常回線L2および終端抵抗R2の通電
ループによって2W非常回線L2の状態を監視し、2W試験回線L3および終端抵抗R3
の通電ループによって2W非常回線L3の状態を監視している。この状態を線路監視モー
ドという。
The relay circuit of the mode switching means 3 is used when the power is turned on and during normal times when there is no call.
As shown in FIG. 1, the lines from the emergency telephones D1 to DN are connected to the line monitoring means 2 side. The line monitoring means 2 controls the state of the 2W emergency line L1 (line disconnection, ground crossing, battery crossing, poor insulation) by the relay circuit, the energization loop of the 2W emergency line L1 and the terminating resistor R1 under the control of the monitoring device control means 4 Etc.), and the state of the 2W emergency line L2 is monitored by the energization loop of the relay circuit, the 2W emergency line L2 and the termination resistor R2, and the 2W test line L3 and the termination resistor R3.
The state of the 2W emergency line L3 is monitored by the current supply loop. This state is called a line monitoring mode.

監視の結果は監視装置制御手段4に伝えられ、監視装置制御手段4は、故障情報蓄積手段8に蓄積し適当なときに通話制御手段1を経由してセンター装置9へ転送する。センター装置9では、しかるべき措置がなされ、これにより2W非常回線L1,L2および2W試験回線L3の保全を図ることができる。   The monitoring result is transmitted to the monitoring device control unit 4, and the monitoring device control unit 4 stores the failure information in the failure information storage unit 8 and transfers it to the center device 9 via the call control unit 1 when appropriate. In the center apparatus 9, appropriate measures are taken, whereby the 2W emergency lines L1, L2 and the 2W test line L3 can be maintained.

モード切替手段3によって非常電話D1〜DNのOFFフックが検出されると、リレー回路は、非常電話D1〜DNからの回線の接続は通話制御手段1側に切り替え、センター装置9を介してセンター装置電話10と通話できるようになる。この状態を通話モードという。これにより、高速道路を利用するドライバ等が緊急事態発生時に管理事務所と連絡をとることができる。この後、非常電話D1〜DNがONフックに移行すると線路監視モードに戻る様になっている。   When the mode switching means 3 detects the OFF hook of the emergency telephones D1 to DN, the relay circuit switches the connection of the lines from the emergency telephones D1 to DN to the call control means 1 side, and the center apparatus via the center apparatus 9 It becomes possible to talk with the telephone 10. This state is called a call mode. Thereby, the driver using the expressway can contact the management office when an emergency occurs. Thereafter, when the emergency telephones D1 to DN shift to the ON hook, the line monitoring mode is restored.

さて、プログラムまたは設定スイッチで予め設定された時間になると、試験発呼手段7は、監視装置制御手段4に対して試験発呼開始指示を行う。試験発呼手段7から試験発呼開始指示を受けた監視装置制御手段4は、通話制御手段1に対し現状のモード(通話モード/線路監視モード)の情報を要求し試験発呼が可能かどうかを確認する。ここで通話モードになっている場合には試験発呼ができないので試験発呼は行われない。線路監視モードのときは、試験発呼が可能な状態なので監視装置制御手段4は以下の制御を行う。   Now, when the time preset by the program or the setting switch is reached, the test call means 7 gives a test call start instruction to the monitoring apparatus control means 4. Upon receiving the test call start instruction from the test call means 7, the monitoring device control means 4 requests the call control means 1 for information on the current mode (call mode / line monitoring mode) to determine whether or not the test call can be made. Confirm. Here, since the test call cannot be made when the communication mode is set, the test call is not performed. In the line monitoring mode, since the test call is possible, the monitoring device control means 4 performs the following control.

先ず、通話制御手段1に対して試験発呼開始指示を行う。試験発呼開始指示を受信した通話制御手段1は、2W試験回線L3に対し試験発呼用の電源供給を開始する。   First, a test call start instruction is given to the call control means 1. The call control means 1 that has received the test call start instruction starts supplying power for the test call to the 2W test line L3.

次に、監視装置制御手段4は、PB信号送出手段5に対して、監視用PB信号送出指示を行う。監視用PB信号送出指示を受信したPB信号送出手段5は2W試験回線L3を介して監視用PB信号を非常電話D1〜DNへ向けて順次に送出する。監視用PB信号の内容は、図2に例示するとおり、1桁目が非常電話D1〜DNの個別認識用のID、2桁目が応答信号に使用する回線番号である。なお、監視用PB信号に他の情報を含ませることを妨げない。   Next, the monitoring device control means 4 instructs the PB signal sending means 5 to send a monitoring PB signal. Upon receiving the monitoring PB signal transmission instruction, the PB signal transmission means 5 sequentially transmits the monitoring PB signal to the emergency telephones D1 to DN via the 2W test line L3. The contents of the monitoring PB signal are, as illustrated in FIG. 2, the first digit is an ID for individually identifying emergency calls D1 to DN, and the second digit is a line number used for a response signal. It should be noted that other information is not prevented from being included in the monitoring PB signal.

監視用PB信号を受信した例えば非常電話D1は、監視用PB信号のID部をチェックして、その監視用PB信号が自身宛の非常電話用のPB監視信号であるかを判断する。もし、ID部が一致していて、且つ非常電話が正常状態の場合は、応答信号を返すために2W非常回線L1または2W非常回線L2をオフフック状態に移行させた後、その回線から応答信号として監視用PB応答信号を返送する。尚、返送に2W非常回線L1を使うか2W非常回線L2を使うかは、監視用PB信号中の2桁目の回線番号に書かれた回線番号を使うことにしている。監視用PB応答信号の内容は例えば図3の通りである。図3において、1桁目が非常電話D1〜DNの個別認識用のID、2桁目が固定の「*」である。なお、PB応答信号に他の情報を含ませることを妨げない。   For example, the emergency telephone D1 that has received the monitoring PB signal checks the ID part of the monitoring PB signal to determine whether the monitoring PB signal is an emergency telephone PB monitoring signal addressed to itself. If the ID parts match and the emergency telephone is in a normal state, the 2W emergency line L1 or 2W emergency line L2 is shifted to the off-hook state to return a response signal, and then the response signal is sent from that line. A monitoring PB response signal is returned. Whether the 2W emergency line L1 or the 2W emergency line L2 is used for return is determined by using the line number written in the second digit line number in the monitoring PB signal. The contents of the monitoring PB response signal are as shown in FIG. 3, for example. In FIG. 3, the first digit is an ID for individual recognition of the emergency telephones D1 to DN, and the second digit is a fixed “*”. In addition, it does not prevent other information from being included in the PB response signal.

例えば、非常電話D1が監視応答のため2W非常回線L1または2W非常回線L2をオフフック状態にすると、モード切替手段3はオフフックを検出した回線が通話モードになるので、非常電話D1からの監視用PB応答信号は、モード切替手段3を通りPB信号検出手段6に入力される。   For example, when the emergency telephone D1 puts the 2W emergency line L1 or the 2W emergency line L2 into the off-hook state for monitoring response, the mode switching means 3 switches the line where the off-hook is detected to the call mode, so the monitoring PB from the emergency telephone D1 The response signal is input to the PB signal detection means 6 through the mode switching means 3.

PB信号検出手段6は、入力されたPB応答信号をPB信号デコーダによりデコードし、受信応答データ内容が規定通りになっているかを検査する。規定通りになっている場合は、「非常電話D1正常」とし、規定通りになっていない、またはPB応答信号が検出されない場合は「非常電話D1故障」として監視装置制御手段4に通知する。   The PB signal detection means 6 decodes the input PB response signal by the PB signal decoder, and checks whether the content of the received response data is as specified. If it is in accordance with the regulations, “emergency telephone D1 is normal”, and if it is not in regulation, or if no PB response signal is detected, it notifies the monitoring apparatus control means 4 as “emergency telephone D1 failure”.

監視装置制御手段4、「非常電話1正常」または「非常電話1故障」の故障情報を一旦、故障情報蓄積手段8に現在時刻とともに保存する。なお、故障情報蓄積手段8を備えない構成の場合には、監視装置制御手段4は、PB信号検出手段6からの「非常電話1正常」または「非常電話1故障」の故障情報を自身の時計部からの現在時刻情報を付加して直ちにセンター装置9に通知する。   The monitoring device control means 4, the failure information “emergency telephone 1 normal” or “emergency telephone 1 failure” is temporarily stored in the failure information storage means 8 together with the current time. In the case where the failure information storage means 8 is not provided, the monitoring device control means 4 uses the failure information of “emergency telephone 1 normal” or “emergency telephone 1 failure” from the PB signal detection means 6 as its own clock. The current time information from the part is added and immediately notified to the center device 9.

センター装置9は、監視装置制御手段4に定期的に監視情報の要求を行う。監視装置制御手段4は、通話制御手段1を介して、センター装置9からの監視情報要求を受けると、故障情報蓄積手段8に蓄積してある非常電話1の故障情報とその発生時刻を通信制御手段1経由でセンター装置9に送信する。   The center device 9 periodically requests monitoring information to the monitoring device control means 4. When the monitoring device control unit 4 receives the monitoring information request from the center device 9 via the call control unit 1, the monitoring device control unit 4 performs communication control of the failure information of the emergency telephone 1 stored in the failure information storage unit 8 and the time of occurrence thereof. The data is transmitted to the center device 9 via the means 1.

センター装置9では、通信制御手段1を介して収集した非常電話1の故障情報とその発生時刻を整理して自身の記憶装置に蓄積するとともにセンター装置端末11にその内容を表示する。このようにして、非常電話の故障監視が自動で行われ、記録がセンター装置9に蓄積されることになる。   In the center device 9, the failure information of the emergency telephone 1 collected through the communication control means 1 and the time of occurrence thereof are organized and stored in its own storage device, and the content is displayed on the center device terminal 11. In this manner, emergency telephone failure monitoring is automatically performed, and records are stored in the center device 9.

非常電話D2〜DNの故障監視も同様な手順で行われ、全非常電話の記録がセンター装置9に蓄積される。このようにして、全ての非常電話D1〜DNの監視が自動で、短時間に、抜けなく行われ、その記録が蓄積できるようになる。
[産業上の利用可能性]
本発明の活用例として高速道路用の非常電話システムがある。
Fault monitoring of the emergency telephones D2 to DN is also performed in the same procedure, and records of all emergency telephones are stored in the center device 9. In this way, all the emergency calls D1 to DN are automatically monitored in a short time without missing, and the records can be accumulated.
[Industrial applicability]
An application example of the present invention is an emergency telephone system for highways.

本発明の非常電話監視装置の一実施例を示すブロック図The block diagram which shows one Example of the emergency telephone monitoring apparatus of this invention 本発明におけるPB信号のフォーマット例を示す図The figure which shows the format example of the PB signal in this invention 本発明におけるPB応答信号のフォーマット例を示す図The figure which shows the format example of the PB response signal in this invention

符号の説明Explanation of symbols

1 通話制御手段
2 線路監視手段
3 モード切替手段
4 監視装置制御手段
5 PB信号送出手段
6 PB信号検出手段
7 試験発呼手段
8 故障情報蓄積手段
9 センター装置
10 センター装置電話
11 センター装置端末
100 非常電話監視装置
D1〜DN 非常電話
L1〜L2 2W非常回線
L3 2W試験回線
R1〜R3 終端抵抗
DESCRIPTION OF SYMBOLS 1 Call control means 2 Line monitoring means 3 Mode switching means 4 Monitoring apparatus control means 5 PB signal transmission means 6 PB signal detection means 7 Test call means 8 Failure information storage means 9 Center apparatus 10 Center apparatus telephone 11 Center apparatus terminal
100 Emergency telephone monitoring device D1-DN Emergency telephone L1-L2 2W emergency line L3 2W test line R1-R3 Termination resistor

Claims (4)

複数の非常電話と試験回線および通話用の非常回線で接続された非常電話監視装置にお
いて、
前記非常回線に接続され当該非常電話のOFFフックまたはONフックによって通話モ
ードと線路監視モードを切り替えるモード切替手段と、
前記モード切替手段を監視して通話モード/線路監視モードの状態を把握し前記非常電
話の通話制御を行う通話制御手段と、
予め設定された時間間隔で前記非常電話に対する試験発呼開始指示を順次に行う試験発
呼手段と、
前記試験発呼手段から試験発呼開始指示を受けると前記通話制御手段に対し現状のモー
ドの情報を要求し前記線路監視モードなら監視用PB信号送出指示を出力する監視装置制
御手段と、
前記監視装置制御手段から監視用PB信号送出指示を受けると監視用PB信号を前記試
験回線経由で非常電話へ向けて順次に送出するPB信号送出手段と、
前記監視用PB信号に対する前記非常電話からのPB応答信号を前記モード切替手段経
由で受けると検査し前記監視装置制御手段に通知するPB信号検出手段とを含み、
前記監視装置制御手段は前記検査の結果による前記非常電話の故障情報を前記通話制御
手段経由で前記非常電話の管理事務所に設置されているセンター装置へ送出することを特
徴とする非常電話監視装置。
In an emergency telephone monitoring device connected to a plurality of emergency telephones via test lines and telephone emergency lines,
Mode switching means connected to the emergency line and switching between a call mode and a line monitoring mode by an OFF hook or an ON hook of the emergency telephone;
Call control means for monitoring the mode switching means and grasping the state of the call mode / line monitoring mode and controlling the call of the emergency call;
Test call means for sequentially instructing test call start to the emergency telephone at a preset time interval;
Monitoring device control means for requesting information on the current mode to the call control means upon receiving a test call start instruction from the test call means, and outputting a monitoring PB signal transmission instruction if the line monitoring mode;
PB signal sending means for sequentially sending the monitoring PB signal to the emergency telephone via the test line when receiving a monitoring PB signal sending instruction from the monitoring device control means;
PB signal detection means for inspecting and notifying the monitoring apparatus control means when receiving a PB response signal from the emergency telephone for the monitoring PB signal via the mode switching means,
The monitoring device control means sends out the emergency telephone failure information based on the result of the inspection to the center device installed in the emergency telephone management office via the call control means. .
前記試験回線および通話用の非常回線の線路監視を行う線路監視手段を備え、
前記モード切替手段は、前記非常電話がOFFフックなら前記非常回線を前記通話制御手段に接続し、ONフックなら前記非常回線を前記線路監視手段に接続することを特徴と
する請求項1記載の非常電話監視装置。
Line monitoring means for monitoring the test line and emergency line for telephone calls,
2. The emergency switch according to claim 1, wherein the mode switching means connects the emergency line to the call control means if the emergency telephone is OFF hook, and connects the emergency line to the line monitoring means if the emergency telephone is ON hook. Telephone monitoring device.
前記監視装置制御手段からの前記非常電話の故障情報を蓄積する故障情報蓄積手段を備
えたことを特徴とする請求項1または請求項2記載の非常電話監視装置。
3. The emergency telephone monitoring apparatus according to claim 1, further comprising failure information storage means for storing the failure information of the emergency telephone from the monitoring apparatus control means.
前記非常回線および試験回線は全ての非常電話に接続され、前記監視用PB信号は非常
電話個別認識用のIDと応答信号に使用する回線番号を含み、前記PB応答信号は非常電
話個別認識用のIDを含むことを特徴とする請求項1〜請求項3のいずれかに記載の非常電話監視装置。
The emergency line and test line are connected to all emergency telephones, the monitoring PB signal includes an ID for emergency call individual recognition and a line number used for a response signal, and the PB response signal is for emergency telephone individual recognition. emergency telephone monitoring device according to any one of claims 1 to 3, characterized in that it comprises an ID.
JP2008014313A 2008-01-24 2008-01-24 Emergency telephone monitoring device Active JP5071934B2 (en)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04275798A (en) * 1991-03-04 1992-10-01 Nec Eng Ltd Terminal device identification monitoring system for branch connection line
JPH0715754A (en) * 1993-06-25 1995-01-17 Hitachi Ltd Line terminating equipment remote test control system using dtmf signal
JP3415906B2 (en) * 1993-12-27 2003-06-09 富士通株式会社 Multipurpose emergency telephone system
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