JPS60183898A - Remote supervisory and controlling equipment - Google Patents
Remote supervisory and controlling equipmentInfo
- Publication number
- JPS60183898A JPS60183898A JP4011184A JP4011184A JPS60183898A JP S60183898 A JPS60183898 A JP S60183898A JP 4011184 A JP4011184 A JP 4011184A JP 4011184 A JP4011184 A JP 4011184A JP S60183898 A JPS60183898 A JP S60183898A
- Authority
- JP
- Japan
- Prior art keywords
- control
- sound
- signal
- monitored
- equipment
- 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
Classifications
-
- G—PHYSICS
- G08—SIGNALLING
- G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
- G08C25/00—Arrangements for preventing or correcting errors; Monitoring arrangements
- G08C25/02—Arrangements for preventing or correcting errors; Monitoring arrangements by signalling back receiving station to transmitting station
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Selective Calling Equipment (AREA)
Abstract
Description
【発明の詳細な説明】
本発明は遠方監視制御装置に関し、特に直接操作するこ
との困難な被監視制御所の監視制御を行なう遠方監視制
御装置に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a remote monitoring and control device, and more particularly to a remote monitoring and control device that monitors and controls a monitored control station that is difficult to operate directly.
第1図は従来の遠方監視制御装置の構成図である。被監
視制御所lけ、水中、海底、山奥、砂漠などの操作員が
容易に立入りられない地域に設けられ、例えば発電所に
用いられる7」?ンノ°、パルプ、リレーなどの被監視
制御機器2を、監視制御所3から発せられる制御信号に
より作動させるところである。し/ζがって、操作員が
面接操作して被監視制御機器2を制御することははなは
だ困難である。FIG. 1 is a block diagram of a conventional remote monitoring and control device. A monitored control station is set up in an area that cannot be easily accessed by operators, such as underwater, on the ocean floor, deep in the mountains, or in the desert, and is used, for example, in a power plant. Monitored and controlled equipment 2 such as gas, pulp, and relays are operated by control signals issued from the supervisory control center 3. Therefore, it is extremely difficult for the operator to control the monitored control device 2 through face-to-face operations.
そこで、被監視制御所1と監視制御所3との間でのデー
タ伝送つ捷シ監祝制御所3における監視制御盤4の操作
ンI?クン等を操作して発せられた制御信号と被監視制
御機器2の状態などを示す状態信号との伝送は、両割御
所1,3にそれぞれ設けられた伝送装置5,6により伝
送路7を介して行なわれる。そして、被監視制御所1に
操作員が在る場合は、伝送路7にその信号をのせて伝送
を行なう通話装置8,9によシ両制御所1,3間での通
話をできるようにしてある。Therefore, the data transmission between the monitored control station 1 and the supervisory control station 3 and the operation of the supervisory control panel 4 in the supervisory control station 3 are necessary. The control signals emitted by operating the controller and the status signals indicating the status of the monitored control equipment 2 are transmitted through the transmission line 7 by the transmission devices 5 and 6 installed in the Ryowarigosho 1 and 3, respectively. It is done through If there is an operator at the monitored control center 1, the communication devices 8 and 9, which transmit the signal on the transmission line 7, are used to enable communication between the two control centers 1 and 3. There is.
また、被監視制御所1の被監視制御機器2の監視制御を
データ伝送だけにょシ行なうのではなく、実際に被監視
制御機器2の状態を見たい場合は、第2図に示すように
その被監視制御機器2を撮像するテレビジョンカメラ装
置10を設置し、このテレビジョンカメラ装置1oから
送出される映像信号を伝送路7とは別の伝送路11を介
して監視制御所3に設置したテレビジョン表示装置12
に送って被監視制御機器の状態をモニタできるようにし
ている。In addition, if you want to monitor and control the monitored control equipment 2 in the monitored control station 1 by actually checking the status of the monitored control equipment 2 instead of just transmitting data, you can do so as shown in Figure 2. A television camera device 10 for capturing an image of the monitored and controlled equipment 2 was installed, and a video signal sent from the television camera device 1o was installed in the monitoring control center 3 via a transmission path 11 different from the transmission path 7. Television display device 12
The status of monitored and controlled equipment can be monitored by sending the information to
したがって、第1図に示す装置では、被監視制御機器2
の状態は伝送路7に伝送する状態信号のみにしかつかむ
ことができず、このため実際に被監視制御機器2が、監
視制御盤4から発せられた制御信号どおりに作動してい
るのかどうか正確拠判らない。例えは、伝送装置5,6
、伝送路7の故障などにより誤信号が伝送されてしまう
こともある。Therefore, in the device shown in FIG.
The status of can be grasped only from the status signal transmitted to the transmission line 7, and therefore it is not possible to accurately determine whether the monitored control equipment 2 is actually operating according to the control signal issued from the supervisory control panel 4. I have no idea. For example, transmission devices 5 and 6
, an erroneous signal may be transmitted due to a failure of the transmission line 7 or the like.
一方、第2図に示す装置では、第1図に示す装置に加え
て別の伝送路11を布設しなければならず、さらにカメ
ラ装置IOを用いるため照明装置を設けなければならな
い。On the other hand, in the apparatus shown in FIG. 2, another transmission line 11 must be installed in addition to the apparatus shown in FIG. 1, and since the camera device IO is used, an illumination device must also be provided.
本発明は上記実情に基づいてなされたもので、その目的
とするところは、簡単な構成のもので正確に被監視制御
機器の状態を監視制御し得る遠方監視制御装置を提供す
ることにある。The present invention has been made based on the above-mentioned circumstances, and its object is to provide a remote monitoring and control device that has a simple configuration and can accurately monitor and control the status of monitored and controlled equipment.
本発明は、監視制御所と被監視制御所との間のデータ伝
送を伝送路を介して行なう監視制御装置にあって、前記
被監視制御所の被監視制御機器の作動音を収集し、この
収集によ、り得た作動音信号を前記伝送路にのせる作動
音伝送手段を設け、これにより前記被監視制御所におい
て前記被監視制御機器の状態を確認できるようにした遠
方監視制御装置である。The present invention relates to a supervisory control device that performs data transmission between a supervisory control center and a monitored control station via a transmission line, and which collects operating sounds of monitored control equipment in the monitored control station. A remote monitoring and control device is provided with an operating sound transmission means for transmitting the obtained operating sound signal onto the transmission line, thereby enabling the state of the monitored control equipment to be confirmed at the monitored control station. be.
以下、本発明に係る監視制御装置の一実施例について第
3図ないし第6図を参照して説明する。第3図は遠方監
視制御装置の構成図である。An embodiment of the supervisory control device according to the present invention will be described below with reference to FIGS. 3 to 6. FIG. 3 is a configuration diagram of the remote monitoring and control device.
第3図において20は例えば水中、海底、山奥、砂漠な
どの操作員の入シ込めない地域に設けられた被監視制御
所であって、この被監視制御所20は前述したように例
えば山奥に設けられた発電所に用いられているポンプ、
・−′ルグ、リレー、継電器などの被監視制御機器21
を、監視制御所30から発せられ伝送路りを介して送ら
れてくる制御信号により作動し、かつ作動した被監視制
御機器2ノの状態を示す状態信号を監視制御装置30に
送出し、さらに被監視制御機器21の作動音をも監視制
御装置30に送る機能をもったところである。具体的に
は、監視制御所30から送られてくる制御信号を受け取
って被監視制御機器21に送り、かつ制御信号に応じて
作動した被監視制御機器2Iの状態例えば・ぐルブの開
度が何・ぐ−セントかを示す熟状態信号を監視制御所に
送出するFS変調方式の変調器および復調器の機能を持
つ伝送装置22、監視制御所30との間での通話を行な
い、その通話信号を伝送路りにのせる通話装置23、さ
らには、被監視制御機器21の近傍に設けられ、例えば
ポンプなどの作動音を収集してその作動音信号を伝送路
りにのせる集音装置24から構成されている。集音装置
24は、第4図に示すように集音マイク24aと増幅部
24bとから構成され、この集音装置24と通話装置2
3とは切換スイッチSIによシ切換えられるようになっ
ている。切換ス・イッチS、は、手動操作により切換え
られるとともに監視制御盤31からの切換信号によって
も切換えられるようになっており、また通話装置23に
よる呼び出し2は、被監視制御機器21を通して伝送装
置22から行なわれるようになっている。In FIG. 3, reference numeral 20 denotes a monitored control station installed in an area where operators cannot enter, such as underwater, on the ocean floor, deep in the mountains, or in the desert. Pumps used in installed power plants,
- Monitored and controlled equipment 21 such as relays, relays, relays, etc.
is activated by a control signal issued from the supervisory control center 30 and sent via the transmission path, and sends a status signal indicating the status of the activated monitored controlled equipment 2 to the supervisory control device 30, and further It also has a function of sending the operating sound of the monitored and controlled equipment 21 to the monitoring and control device 30. Specifically, it receives a control signal sent from the supervisory control center 30, sends it to the monitored controlled device 21, and determines the state of the monitored controlled device 2I that is operated in response to the control signal, for example, the opening degree of the valve. A telephone call is made between the transmission device 22, which has the functions of an FS modulation modulator and demodulator, and the supervisory control center 30, which sends a readiness signal indicating how many cents to the supervisory control center. A communication device 23 that puts signals on a transmission path, and a sound collection device that is installed near the monitored control equipment 21 and collects the operating sound of, for example, a pump and puts the operating sound signal on the transmission path. It consists of 24. The sound collecting device 24 is composed of a sound collecting microphone 24a and an amplifying section 24b as shown in FIG.
3 can be switched by a changeover switch SI. The switch S is switched by manual operation and also by a switching signal from the supervisory control panel 31, and calls 2 from the communication device 23 are sent to the transmission device 22 through the monitored and controlled equipment 21. It has been practiced since.
一方、監視制御所30は、被監視制御所20における被
監視制御機器21の制御監視を行なうところで、具体的
には、被監視制御機器2Iのそれぞれの機器に対しての
操作ボタンやその機器の状態を示す表示ランプなどを被
監視制御機器21に応じて複数配置した監視制御盤31
、また被監視制御所゛20に対応して伝送装置32、通
話装置、?。9が設けられ、さらに集音装置24から延
出される作動音信号を再生する毛再生装宿34から構成
されている。この音再生装置、94は、第5図に示すよ
うにスピーカ34gと増幅部34 bとから構成されて
おり、この音再生装置34と通話装置33とけり換スイ
ッチS2により切換えられるようになっている。On the other hand, the supervisory control center 30 controls and monitors the monitored control equipment 21 in the monitored control center 20, and specifically controls the operation buttons for each of the monitored control equipment 2I, A monitoring control panel 31 in which a plurality of display lamps indicating the status are arranged according to the monitored and controlled equipment 21.
, and corresponding to the monitored control station 20, a transmission device 32, a communication device, ? . 9 is provided, and further comprises a hair regeneration device 34 for reproducing the operating sound signal extended from the sound collection device 24. As shown in FIG. 5, this sound reproducing device 94 is composed of a speaker 34g and an amplifying section 34b, and can be switched between the sound reproducing device 34, the communication device 33, and a changeover switch S2. There is.
さて、伝送装置::12,32間のデータ伝送と通話装
fi 23 、33間せたけ集音装(η24と音再生装
置34との間の信号の伝送とt、11、同一・の伝送路
l・にのせて行なうので、その伝送方法および構成は次
のようになっている。すなわち、伝送装置23 、3.
9間の伝送は、第6図に示す如<2.4kHzを中上・
とじた2、3kHzから2.5 kH7の周波数帯域で
行ない、一方、通話装置23. 、? 3問および集音
装#24と音再生装置、?4との間の伝送は1.8kH
7以下の周波数帯域で行なっている。このため、第4図
および第5図に示すように、切換スイッチS、と伝送路
りとの間に周波数帯域1.8kHz以下を設定するナヤ
ンネル設定部25が設けられ、才だ伝送路りと切換スイ
ッグーS2との間にチャンネル設定部25と同一117
)−1−ヤンネル設定部35が設けらオじCいる。Now, the data transmission between the transmission device: 12 and 32, the transmission of the signal between the communication equipment fi 23 and the sound collection device between η24 and the sound reproduction device 34, and the transmission line of t, 11, the same. The transmission method and configuration are as follows. That is, the transmission devices 23, 3.
The transmission between 9 and 9 is as shown in Figure 6.
This is done in the frequency band of 2.3 kHz to 2.5 kHz7, while the communication device 23. ,? 3 questions and sound collection device #24 and sound reproduction device? The transmission between 4 and 4 is 1.8kHz.
This is done in frequency bands below 7. For this reason, as shown in FIGS. 4 and 5, a channel setting section 25 for setting a frequency band of 1.8 kHz or less is provided between the changeover switch S and the transmission path, and the transmission path is The same 117 as the channel setting section 25 is connected between the switching swig S2
)-1-A channel setting section 35 is provided.
次に上記の如く構成された装置の動作について説、明す
る。通常、操作員v」:監視制御n130におり、1」
」奥などの被監視制御所2 oは無人となっている。し
たがって切換スイッチS1は年刊装置24側に、甘だ切
換スイッチ82は音「1)正装g、34側に接続されて
いる。例えば発電所を制御するためにその醪ンフ0、・
クツドブ、リレーなどの被監視制御機器21を作動させ
る場合、操作員は監視制御盤31の操作d君タンなど台
操作して制御するのに適正な制御信月を送出させる。Next, the operation of the apparatus configured as described above will be explained. Normally, operator v": is in supervisory control n130, 1"
The monitored control station 2o, such as the back, is unmanned. Therefore, the changeover switch S1 is connected to the yearly publication device 24 side, and the sweet changeover switch 82 is connected to the sound ``1) formal g, 34 side.For example, in order to control a power plant, its sake 0, .
When operating the monitored control equipment 21 such as a switch, a relay, etc., the operator operates the monitoring control panel 31, such as the d button, to send out a control signal appropriate for control.
この制御信号は伝送装置32により送出さ第1伝送路り
を通って被監視制御所20に送られる。This control signal is sent out by the transmission device 32 and sent to the monitored control station 20 through the first transmission path.
被監視制御所20の伝送装置22仁1−1送ら牙]てき
た制御信号を受け取って被監視制御機器2ノに送る。こ
れにより、被監視制御機器2ノは作動する、例えばパル
プの開度が35%から50チに変化するとか、ポンプが
作動開始するなどである。The transmission device 22 of the monitored control station 20 receives the incoming control signal and sends it to the monitored controlled equipment 2. As a result, the monitored control equipment 2 operates, for example, the pulp opening changes from 35% to 50%, or the pump starts operating.
そこで、これら制御信号に応じた被監視制御機器21の
作動の状態は、その作動状態が検出されて状態信号とし
て伝送装置22から監視制御装置30VC送られ、この
監視制御装置30の監視制御盤3ノに表示されて操作員
に示される。Therefore, the operating state of the monitored and controlled equipment 21 in response to these control signals is detected and sent as a state signal from the transmission device 22 to the monitoring and control device 30VC, and the monitoring and control device 30 of the monitoring and control device 30 receives the operating state. is displayed to the operator.
さらに、第3図に示す装置では、制御信号によシ作動し
た被監視制御機器21の作動音がその近傍に設けられた
集音マイク24aによシ集音されて作動音信号として増
幅部24b1切換スイッチS1、伝送路りを介して監視
制御所30に送られる。例えば被監視制御機器2ノの作
動音としては、ポンプの運転によ多発生する音、パルプ
の動作音、リレーの駆動音、継電器の投入およびしゃ断
時の音等被監視制御機器21の動作状態を示す音である
。そして、これら作動音は監視制御所30のスピーカ3
4aに再生されて操作員に報知される。なお、監視制御
所30に送られる音は、被監視制御機器21の作動音ば
かシでなく、不具合が発生したときの警報音や被監視制
御所20に操作員などがいたときの会話音声なども送ら
れる。Furthermore, in the apparatus shown in FIG. 3, the operating sound of the monitored control equipment 21 that is activated by the control signal is collected by the sound collecting microphone 24a provided in the vicinity, and is converted into an operating sound signal by the amplifying section 24b1. The signal is sent to the supervisory control center 30 via the changeover switch S1 and the transmission path. For example, the operating sounds of the monitored controlled equipment 2 include the sounds often generated during pump operation, the operating sound of pulp, the driving sound of relays, the sound of turning on and off relays, etc., and the operating state of the monitored controlled equipment 21. This is the sound that indicates. These operating sounds are transmitted through the loudspeaker 3 of the monitoring and control center 30.
4a and notified to the operator. Note that the sounds sent to the supervisory control center 30 are not just the operating sounds of the monitored control equipment 21, but also alarm sounds when a malfunction occurs, conversation voices when an operator is present in the monitored control center 20, etc. will also be sent.
この結果、監視制御所30では、操作員の操作どうシに
被監視制御機器2ノが作動したのかが確認される。As a result, the supervisory control center 30 confirms whether the monitored and controlled equipment 2 has been activated by the operator's operation.
このように本発明の装置においては、被監視制御機器2
ノの作動音を集音する集音装置24を設け、この作動音
を作動音信号として伝送路りにのせて監視制御所30に
送って再生するようにしたので、監視制御盤31での表
示と音再生装置34によシ再生される作動音とにより被
監視制御機器2ノが操作員の操作したとおシに作動した
のかが正確に判かる。したがって、操作員が容易に立入
ることが困難な地域に設けられた被監視制御所20や遠
隔地に設けられて直接操作するのが困難な被監視制御所
20に対する監視制御があたかも直接操作している如く
となる。In this way, in the device of the present invention, the monitored control equipment 2
A sound collection device 24 is provided to collect the operating sound of Based on the operation sound reproduced by the sound reproduction device 34, it can be accurately determined whether the monitored control device 2 has operated in accordance with the operator's operation. Therefore, monitoring and control of monitored control stations 20 that are located in areas that are difficult for operators to easily access, or that are located in remote locations that are difficult to directly operate, can be performed as if they were directly operated. It will be as if it is.
さらに、データ伝送と作動音信号または通話信号の伝送
とは同一の伝送路りを用いているが、その伝送の周波数
帯域が異なっているため、混信することはない。Furthermore, although the data transmission and the transmission of the operating sound signal or the speech signal use the same transmission path, the transmission frequency bands are different, so there is no interference.
集音装置24は被監視制御機器21の作動音はかりでな
く、モータの異常動作により発する異常音や継電器の異
常動作音なども集音するので、被監視制御機器21の診
断や異常発生の拡大を防ぐことができる。The sound collection device 24 collects not only the operating sound of the monitored control equipment 21 but also abnormal sounds emitted by abnormal motor operation and abnormal operation sounds of relays, so it can be used to diagnose the monitored control equipment 21 and to spread the occurrence of abnormalities. can be prevented.
なお、集音マイク24aに指向の鋭いものを用いれば、
集音能力を向上し得えて確実に被監視制御機器21の作
動音を集音できるようになる。Note that if the sound collecting microphone 24a is one with a sharp direction,
The sound collection ability can be improved and the operation sound of the monitored control equipment 21 can be collected reliably.
寸だ、本発明は上記一実施例に限定されるものではない
。例えば第7図に示すように被監視制御機器21の作動
音を集音マイク40で集音し、その作動音信号40a〔
第8図(a)〕と増幅器4ノで増幅して第8図(b)に
示す信号41aとし、さらにこの信号41aを変換器4
2によシ所定レベルをもって第8図(C)に示すような
状態信号42aに変換して伝送装置43に送るようにし
てもよい。なお、伝送装置43にkll、周波数帯域(
1,8kHz以下)を設定する機能を持っている。However, the present invention is not limited to the above embodiment. For example, as shown in FIG. 7, the operating sound of the monitored control equipment 21 is collected by a sound collecting microphone 40, and the operating sound signal 40a [
FIG. 8(a)] is amplified by the amplifier 4 to obtain a signal 41a shown in FIG.
Alternatively, the signal may be converted to a status signal 42a with a predetermined level as shown in FIG. 8(C) and sent to the transmission device 43. Note that the transmission device 43 has kll, frequency band (
1.8kHz or less).
本発明によれば、被監視制御機器の作動音を集音し、そ
の作動音信号を、被監視制御所と監視制御所との間のデ
ータ伝送に用いる伝送路にのせて監視制御所に送シその
作動音を再生する作動音伝送手段を設けたので、筒部な
構成のもので正確に被監視制御機器の状態を監視制御し
得る遠方監視制御装置を提供できる。According to the present invention, the operating sound of the monitored control equipment is collected, and the operating sound signal is sent to the supervisory control center on a transmission path used for data transmission between the monitored control center and the supervisory control center. Since the operating sound transmission means for reproducing the operating sound is provided, it is possible to provide a remote monitoring and control device that can accurately monitor and control the state of the monitored control equipment with a cylindrical structure.
第1図および第2図は従来の遠方監視制御装置の構成図
、第3図は本発明に係る遠方監視制御装置の一実施例を
示す構成図、第4図および第5図は第3図に示す装置の
具体的な構成図で、第4図は被監視制御所の構成図、第
5図は監視制御所の構成図、第6図は第3図に示す装置
における伝送の周波数帯域を示す図、第7図は本発明の
装置の変形例を示す構成図、第8図(a)(b)(C)
は第7図に示す装置の動作を説明するだめの波形図であ
る。
20・・被監視制御所、21・・・被監視制御機器、2
2・・・伝送装置、23・・・通話装置、24・・・集
音装置、24a・・集音マイク、24b・・・増幅部、
25・・・チャンネル設定部、3o・・・監視制御所、
3ノ・・・監視制御盤、32・・・伝送装置、33・・
・通話装置、34・・・音再生装置1.? 4 a・・
・スピーカ、J 4 b・・増幅部、35・・・チャン
ネル設定部、S、、S2 ・切換スイッチ。
出願人代理人 弁理士 鈴 江 武 彦第1図1 and 2 are block diagrams of a conventional remote monitoring and control device, FIG. 3 is a block diagram showing an embodiment of a remote monitoring and control device according to the present invention, and FIGS. 4 and 5 are block diagrams of a conventional remote monitoring and control device. Figure 4 is a diagram showing the configuration of the monitored control station, Figure 5 is the configuration diagram of the supervisory control station, and Figure 6 shows the frequency band of transmission in the equipment shown in Figure 3. 7 is a configuration diagram showing a modification of the device of the present invention, and FIGS. 8(a), (b), and (C).
7 is a waveform diagram for explaining the operation of the device shown in FIG. 7. FIG. 20...Monitored control station, 21...Monitored control equipment, 2
2... Transmission device, 23... Telephone device, 24... Sound collecting device, 24a... Sound collecting microphone, 24b... Amplifying section,
25...Channel setting section, 3o...Monitoring control center,
3... Monitoring control panel, 32... Transmission device, 33...
-Telephone device, 34...sound playback device 1. ? 4 a...
・Speaker, J4b...Amplification section, 35...Channel setting section, S,, S2 ・Selector switch. Applicant's agent Patent attorney Takehiko Suzue Figure 1
Claims (1)
て制御所が前記被制御所の状態を前記伝送路を通じて監
視制御する遠方監視制御装置において、前記被制御所内
の作動音等を収集する手段と、この手段によって収集し
た作動音信号を前記状態信号とともに前記伝送路を通じ
て前記制御所に伝送する手段と、この手段によって伝送
された前記作動音侶月を再生する手段とを具備すること
を特徴とする遠方監視制御装置。In a remote monitoring and control device in which a control center monitors and controls the state of the controlled station via the transmission line in response to a status signal transmitted from the controlled station via the transmission line, means for collecting operating sounds, etc. in the controlled station. and means for transmitting the operating sound signal collected by this means together with the status signal to the control center through the transmission line, and means for reproducing the operating sound signal transmitted by this means. A remote monitoring and control device.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP4011184A JPS60183898A (en) | 1984-03-02 | 1984-03-02 | Remote supervisory and controlling equipment |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP4011184A JPS60183898A (en) | 1984-03-02 | 1984-03-02 | Remote supervisory and controlling equipment |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS60183898A true JPS60183898A (en) | 1985-09-19 |
Family
ID=12571739
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP4011184A Pending JPS60183898A (en) | 1984-03-02 | 1984-03-02 | Remote supervisory and controlling equipment |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS60183898A (en) |
-
1984
- 1984-03-02 JP JP4011184A patent/JPS60183898A/en active Pending
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US4763349A (en) | Monitoring apparatus using telephone link | |
JPS5927664A (en) | Facsimile device | |
JPH10203745A (en) | Elevator remote monitoring system | |
JPS60183898A (en) | Remote supervisory and controlling equipment | |
JPH0687576B2 (en) | Call state inspection device | |
JP2502705B2 (en) | Elevator Car communication device in the car | |
JP2729101B2 (en) | Automatic diagnostic test method for speech coding equipment | |
JP2002037561A (en) | Abnormal sound monitoring device for elevator | |
JPH01281275A (en) | Intercommunication device for elevator cage | |
JP3090797B2 (en) | Broadcast communication network | |
JP2791241B2 (en) | Elevator call inspection equipment | |
KR0155938B1 (en) | Apparatus and method of automatic communication link trouble diagnosing in manless guard system | |
JPS637067A (en) | Transaction processor | |
JPS6339260A (en) | Telecontrol equipment | |
JP2515034Y2 (en) | Automatic reporting device | |
JP3065759B2 (en) | Relay device for wireless telephone | |
JPH0218634Y2 (en) | ||
JPH05213552A (en) | Device for inspecting communication machine for elevator | |
JPH04173676A (en) | Talking device of elevator | |
JPH0816232A (en) | Remote supervisory and control system | |
JPS5917752A (en) | Messenger call system of remote supervisory controller | |
JPS6310955A (en) | Alarm signal transmitter | |
JPH03108938A (en) | Talking equipment for elevator | |
JPH02170734A (en) | Optical repeating system supervising system | |
JPH04170252A (en) | Talking device for elevator |