JPH02193447A - Switching system of telephone for remote supervising controller maintenance - Google Patents
Switching system of telephone for remote supervising controller maintenanceInfo
- Publication number
- JPH02193447A JPH02193447A JP1012636A JP1263689A JPH02193447A JP H02193447 A JPH02193447 A JP H02193447A JP 1012636 A JP1012636 A JP 1012636A JP 1263689 A JP1263689 A JP 1263689A JP H02193447 A JPH02193447 A JP H02193447A
- Authority
- JP
- Japan
- Prior art keywords
- master station
- telephone
- amplifiers
- station
- slave stations
- 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
- 238000012423 maintenance Methods 0.000 title claims description 7
- 239000000872 buffer Substances 0.000 claims abstract description 17
- 238000012544 monitoring process Methods 0.000 claims description 13
- 238000000034 method Methods 0.000 claims description 4
- 230000005540 biological transmission Effects 0.000 description 10
- 238000012546 transfer Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000004891 communication Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
Landscapes
- Selective Calling Equipment (AREA)
- Interconnected Communication Systems, Intercoms, And Interphones (AREA)
- Monitoring And Testing Of Transmission In General (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は遠方監視制御装置に関し、特に親局の保守用電
話を１台で切換えて使用する方式に関する。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a remote monitoring and control device, and particularly to a system in which maintenance telephones of a master station are switched and used with one telephone.
従来、この種の遠方監視制御装置保守用電話は親局を切
換えて使う場合、第２図に示すような方式となっていた
。第２図において、１１は電話機本体で、受話器１２と
送話器１３及び切換用リレーとその接点ｒＱｌ−１、ｒ
Ｑｌ−２、、、ｒＱＮ−１、ｒＱＮ−２を有している。Conventionally, when using this type of remote monitoring and control equipment maintenance telephone by switching the master station, the system was as shown in FIG. 2. In FIG. 2, 11 is the main body of the telephone, including a receiver 12, a transmitter 13, a switching relay, and its contacts rQl-1, r
Ql-2, , rQN-1, rQN-2.
アンプ１４−１〜１４−Ｎは音声受信信号のアンプであ
る。フィルタ１５−１〜１５−Ｎは０．３〜３．４にＨ
ｚの帯域を情報伝送用と通話用に分離するもので、０．
３〜２ＫＨｚを通話用、２〜３．４ＫＨ７を情報伝送用
として使用する。Amplifiers 14-1 to 14-N are amplifiers for audio reception signals. Filters 15-1 to 15-N are 0.3 to 3.4 H
It separates the z band into information transmission and phone calls.
3 to 2 KHz is used for telephone calls, and 2 to 3.4 KH7 is used for information transmission.
情報伝送部親局１６−１〜１６−Ｎは、子局■〜［相］
より送られてくるデータを復号し、出力するものである
。The information transmission unit master stations 16-1 to 16-N are slave stations ■ to [phase]
It decodes the data sent from the computer and outputs it.
以上のアンプ１４−１〜１４−Ｎ、フィルタ１５−１〜
１５−Ｎ、情報伝送部親局１６−１〜１６−Ｎを統合し
て遠方監視制御装置親局１７を構成する。フィルタ１８
−１〜１８−Ｎはフィルタ１５−１〜１５−Ｎと同じく
、情報伝送用と通話用に分離するものである。 １９−
１〜１９−Ｎは送話器、１１０−１〜１１０−Ｎは受話
器である。１１１−１〜１１１−Ｎは電話機本体である
。The above amplifiers 14-1 to 14-N, filters 15-1 to
15-N and the information transmission unit master stations 16-1 to 16-N are integrated to form a remote monitoring and control device master station 17. Filter 18
Similar to the filters 15-1 to 15-N, the filters -1 to 18-N are used to separate information transmission and telephone calls. 19-
1 to 19-N are transmitters, and 110-1 to 110-N are receivers. 111-1 to 111-N are telephone main bodies.
センサー１１３や接点１１４等のデータは情報伝送部子
局１１２−１〜１１２−Ｈに入力され、シリアル信号に
変換され変調されて、フィルタ１８−１〜１８−Ｎ、１
５−１〜１５−Ｎを通って、情報伝送部親局１６−１〜
１６−Ｎに伝送され、出力される。又、情報転送部親局
１６−１〜１６−Ｎからの制御信号は子局において、制
御出力１１５として出力される。Data from the sensor 113, contact point 114, etc. is input to information transmission unit slave stations 112-1 to 112-H, converted into serial signals and modulated, and sent to filters 18-1 to 18-N, 1.
5-1 to 15-N to the information transmission unit master station 16-1 to
16-N and output. Further, control signals from the information transfer unit master stations 16-1 to 16-N are output as control outputs 115 in the slave stations.
通話を行う場合、次のようになる。When making a call, the following happens:
親局→子局を呼出す場合、電話機１１の局選択ボタンを
押すことで、選択局に該当するリレー接点ｒＱｌ−１、
ｒＱｌ−２、、、ｒＱＮ−１、ｒＱＮ−２がＯＮする。When calling from the master station to the slave station, by pressing the station selection button on the telephone 11, the relay contact rQl-1 corresponding to the selected station,
rQl-2, , rQN-1, rQN-2 are turned on.
親局では音声により子局の保守員等に呼出しを行なう、
子局では呼出しに応じて受話器をとり、通話を行う。The master station uses voice to call the maintenance personnel at the slave station.
The slave station picks up the handset in response to the call and makes a call.
子局→親局を呼出す場合、情報伝送部を利用して、呼出
要求信号を親局に伝送し、親局では呼出し局に応じた局
選択ボタンを押して通話を行なう。When calling from the slave station to the master station, the information transmission section is used to transmit a call request signal to the master station, and the master station presses the station selection button corresponding to the calling station to initiate a call.
上述した従来の遠方監視制御装置保守用電話機の切換方
式は電話機内に切換器を持つ必要があるので、特別の電
話機が必要となり、また遠方監視制御装置親局との接続
ケーブル本数が局数分必要となるという欠点がある。The above-mentioned conventional switching method for remote monitoring and control equipment maintenance telephones requires a switching device inside the phone, so a special telephone is required, and the number of cables connected to the remote monitoring and control equipment master station is equal to the number of stations. The disadvantage is that it is necessary.
本発明の目的は前記課題を解決した遠方監視制御装置保
守用電話の切換方式を提供することにある。SUMMARY OF THE INVENTION An object of the present invention is to provide a switching system for a remote monitoring and control device maintenance telephone that solves the above-mentioned problems.
前記目的を達成するため、本発明は遠方監視制御装置親
局と複数の子局とを４Ｗ回線で結び、親局〜子局間の通
話を行なう方式において、親局に増幅器を兼用したバッ
ファを有するものである。In order to achieve the above object, the present invention connects a remote monitoring and control device's master station and a plurality of slave stations with a 4W line, and in a system for communicating between the master station and the slave stations, the present invention provides a buffer that also serves as an amplifier in the master station. It is something that you have.
次に本発明について図面を参照して説明する。 Next, the present invention will be explained with reference to the drawings.
第１図は本発明の一実施例を示す構成図である。FIG. 1 is a block diagram showing an embodiment of the present invention.
図において、遠方監視制御装置親局１はバッファアンプ
（増幅器を兼用したアンプ）４−１〜４−Ｎ及び５−１
〜５−Ｎを有しており、バッファアンプ４−１〜４−Ｎ
は受信信号をアンプし、抵抗３−１〜３−Ｎを介して他
の回線と接続される。また親局１からの送信信号はバッ
ファアンプ５−１〜５−Ｎを介して子局■〜Ｏに伝送さ
れる。抵抗３−１〜３−Ｎはバッファアンプ４−１〜４
−Ｈの出力同志が干渉するのを防いでいる。バッファア
ンプ４−１〜４−Ｎは出力インピーダンスの低いものを
使用し、他局からの通話信号が自局にもれてくるのを防
止する。In the figure, the remote monitoring and control device master station 1 includes buffer amplifiers (amplifiers that also serve as amplifiers) 4-1 to 4-N and 5-1.
~5-N, and buffer amplifiers 4-1 to 4-N
amplifies the received signal and is connected to other lines via resistors 3-1 to 3-N. Further, the transmission signal from the master station 1 is transmitted to the slave stations 1 to 0 via buffer amplifiers 5-1 to 5-N. Resistors 3-1 to 3-N are buffer amplifiers 4-1 to 4
-H outputs are prevented from interfering with each other. Buffer amplifiers 4-1 to 4-N are of low output impedance to prevent communication signals from other stations from leaking to the own station.
バッファアンプ５−１〜５−Ｎは、フィルタ６−１〜６
−Ｎとのインピーダンス整合用である。Buffer amplifiers 5-1 to 5-N are filters 6-1 to 6-6.
-N for impedance matching.
親局〜子局間の呼出し方法は従来例と違い、常時回線が
接続された状態となっているので、親局→子局、子局→
親局とも音声呼出しとなる。Unlike the conventional method, the calling method between the master station and the slave station is such that the line is always connected, so the calling method is as follows: master station → slave station, slave station →
A voice call is also made to the parent station.
２は電話機、７−１〜７−Ｎは情報転送部親局、１は遠
方監視制御装置親局で、抵抗３−１〜３−Ｎ、バッファ
アンプ４−１〜４−Ｎ、５−１〜５−Ｎ、フィルタ６−
１〜６−Ｎ、情報転送部親局７−１〜７−Ｎを統括した
ものである。2 is a telephone, 7-1 to 7-N are information transfer unit master stations, 1 is a remote monitoring and control device master station, resistors 3-1 to 3-N, buffer amplifiers 4-1 to 4-N, 5-1. ~5-N, filter 6-
1 to 6-N, and information transfer unit master stations 7-1 to 7-N.
８−１〜８−Ｎはフィルタ、９−１〜９−Ｎは電話機、
１０−１〜１０−Ｎは情報伝送部子局、１２０はセンサ
ー１２１は接点、１２２は制御出力であり、その動作は
従来例と同一である。8-1 to 8-N are filters, 9-1 to 9-N are telephones,
Reference numerals 10-1 to 10-N are information transmission unit slave stations, 120 is a sensor 121 which is a contact point, and 122 is a control output, the operation of which is the same as in the conventional example.
本発明によれば、遠方監視制御装置親局１にバッファア
ンプ４−１〜４−Ｎ、５−１〜５−Ｎを有するため、切
換回路が不要となる。According to the present invention, since the remote monitoring and control device master station 1 includes the buffer amplifiers 4-1 to 4-N and 5-1 to 5-N, a switching circuit is not required.
以上説明したように本発明はバッファアンプを有するこ
とにより、切換回路を省略でき、電話機に特別なものを
使う必要がなく、また遠方監視制御装置親局との接続ケ
ーブル本数を少なくできる効果がある。As explained above, by having a buffer amplifier, the present invention can omit a switching circuit, eliminates the need for a special telephone, and has the effect of reducing the number of cables connected to the remote monitoring and control device's master station. .
第１図は本発明の一実施例を示す構成図、第２図は従来
例を示す構成図である。
１・・・遠方監視制御装置親局
２・・・電話機 ３−１〜３−Ｎ・・・抵抗
４−１〜４−Ｎ・・・バッファアンプ
５−１〜５−Ｎ・・・バッファアンプ
６−１〜６−Ｎ・・・フィルタ
７−１〜７−Ｎ・・・情報転送部親局
８−１〜８−Ｎ・・・フィルタ
９−１〜９−Ｎ・・・電話機FIG. 1 is a block diagram showing an embodiment of the present invention, and FIG. 2 is a block diagram showing a conventional example. 1... Remote monitoring and control device master station 2... Telephone 3-1 to 3-N... Resistance 4-1 to 4-N... Buffer amplifier 5-1 to 5-N... Buffer amplifier 6-1 to 6-N...Filter 7-1 to 7-N...Information transfer unit Master station 8-1 to 8-N...Filter 9-1 to 9-N...Telephone
Claims (1)
で結び、親局〜子局間の通話を行なう方式において、親
局に増幅器を兼用したバッファを有することを特徴とす
る遠方監視制御装置保守用電話の切換方式。(1) Remote monitoring and control device In a system in which a master station and a plurality of slave stations are connected by a 4W line and telephone calls are made between the master station and the slave stations, the remote station is characterized in that the master station has a buffer that also serves as an amplifier. Switching method for telephones for maintenance of supervisory control equipment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1012636A JPH02193447A (en) | 1989-01-20 | 1989-01-20 | Switching system of telephone for remote supervising controller maintenance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1012636A JPH02193447A (en) | 1989-01-20 | 1989-01-20 | Switching system of telephone for remote supervising controller maintenance |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH02193447A true JPH02193447A (en) | 1990-07-31 |
Family
ID=11810861
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1012636A Pending JPH02193447A (en) | 1989-01-20 | 1989-01-20 | Switching system of telephone for remote supervising controller maintenance |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH02193447A (en) |
-
1989
- 1989-01-20 JP JP1012636A patent/JPH02193447A/en active Pending
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JPS6374330A (en) | Radio communication method and communication equipment therefor | |
| JPH08149559A (en) | Wireless communication device | |
| JPH0734563B2 (en) | Cordless phone | |
| JP2710569B2 (en) | Contract line termination equipment | |
| JP2539255B2 (en) | Loudspeaker calling method and radio device therefor | |
| JPH0222957A (en) | Cordless telephone set with modem function | |
| JP3213993B2 (en) | Cordless answering machine | |
| WO2001003413A3 (en) | Interphone apparatus with connection to a cellular telephone | |
| KR20040106786A (en) | Wireless receive-send system using bluetooth and mehod thereof | |
| JP3157469B2 (en) | Cordless telephone equipment | |
| JPH01117557A (en) | Transfer device for 119 number line | |
| JP2760133B2 (en) | Cordless parent-child telephone equipment | |
| JPH05236551A (en) | Ha system | |
| JP2816867B2 (en) | Communication method in integrated service digital network and communication terminal device thereof | |
| JPH0470813B2 (en) | ||
| JP2621959B2 (en) | Call system | |
| JP2615104B2 (en) | Interface device for data transmission equipment | |
| JP2883510B2 (en) | Cordless telephone equipment | |
| JPH03208418A (en) | Radio equipment, press-to-talk controller and connection control unit | |
| JPH0393394A (en) | Subscriber line concentration communication system | |
| JPH03274830A (en) | Nurse calling system | |
| JPH01232842A (en) | Position registration system | |
| JPH03157095A (en) | Cordless telephone system | |
| JPS63296455A (en) | Switchboard control system | |
| JPH04150443A (en) | System for transmitting line used status information of cordless key telephone system |