JPH01270200A - Portable communication device - Google Patents
Portable communication deviceInfo
- Publication number
- JPH01270200A JPH01270200A JP9826588A JP9826588A JPH01270200A JP H01270200 A JPH01270200 A JP H01270200A JP 9826588 A JP9826588 A JP 9826588A JP 9826588 A JP9826588 A JP 9826588A JP H01270200 A JPH01270200 A JP H01270200A
- Authority
- JP
- Japan
- Prior art keywords
- transmitter
- portable communication
- communication device
- communication unit
- data
- 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
- 238000004891 communication Methods 0.000 title claims abstract description 34
- 230000005540 biological transmission Effects 0.000 abstract description 19
- 230000003287 optical effect Effects 0.000 abstract description 13
- 238000000034 method Methods 0.000 abstract description 12
- 238000005259 measurement Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 240000002853 Nelumbo nucifera Species 0.000 description 1
- 235000006508 Nelumbo nucifera Nutrition 0.000 description 1
- 235000006510 Nelumbo pentapetala Nutrition 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000004973 liquid crystal related substance Substances 0.000 description 1
- 238000010295 mobile communication Methods 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
Landscapes
- Arrangements For Transmission Of Measured Signals (AREA)
- Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
Abstract
Description
【発明の詳細な説明】
（産業上の利用分野〕
本発明は、破１１１１定物理里を２線式、・１〜２０ｍ
Ａ電流レベルの国際標＜３．％信号で伝送し、この４〜
２０ｍＡの信号を受信する１業計測システムにおける携
帯用通信器に関し、特に発信器との交信手段に関するも
のである。Detailed Description of the Invention (Industrial Field of Application) The present invention provides a two-wire system for breaking 1111 constant physical miles, 1 to 20 m.
International standard for A current level <3. % signal, and these 4~
The present invention relates to a portable communication device in a single industry measurement system that receives a 20 mA signal, and particularly relates to a means for communicating with a transmitter.
従来、差圧、圧力、温度１流量等の物（１呈を発信する
発信器からの信号を２線式伝送路を介して計器室にアナ
ログ伝送する通信システムがある。BACKGROUND ART Conventionally, there is a communication system in which signals from a transmitter that transmits things such as differential pressure, pressure, temperature, flow rate, etc. are transmitted in analog form to a control room via a two-wire transmission line.
このｉＪｍ信システムにおいて、発信器のスパン、ゼロ
の調整やレンジの変更などは携帯用通信器（ＳＦＣ’）
と呼ばれる設定器を２線代伝送路に並列に挿入し、デジ
タル信号を発信させ、これを発信器が受信するという方
法で行なわれていた（特開昭５８−８５６４９号公報参
照）。In this iJm communication system, the transmitter's span and zero adjustments and range changes are performed using the portable communication device (SFC').
This was done by inserting a setting device called "Setup Device" in parallel into two wire width transmission lines, transmitting a digital signal, and receiving this signal by a transmitter (see Japanese Patent Application Laid-open No. 85649/1983).
ところが、この設定の間、アナログ発信（プロセス量の
伝送）はストップし、計器室側では受信不能となってし
まうので、制御上好ましくなかった。However, during this setting, analog transmission (transmission of process quantities) stops, and reception becomes impossible on the control room side, which is not desirable in terms of control.
そこで、発信器と携帯通信器が通信状態にあるときは、
計器室側には通信直前のプロセス量を伝送するために、
携帯用通信器の接続点に出力ホールド装置を挿入させる
ことを出願人が提案している（特願昭６２−６４４０２
号、特願昭６２−６４４３０号参照）。Therefore, when the transmitter and mobile communication device are in communication state,
On the control room side, in order to transmit the process amount immediately before communication,
The applicant has proposed inserting an output hold device into the connection point of a portable communication device (Japanese Patent Application No. 62-64402).
(See Japanese Patent Application No. 62-64430).
しかし、この方法は、２線式伝送路を分断するため信頼
性に問題が起こる可能性があり、また、通信中にプロセ
ス量の変化を伝送できない点もさらに問題として残る。However, this method may cause reliability problems because the two-wire transmission line is separated, and there remains another problem in that changes in the process amount cannot be transmitted during communication.
携帯用通信器は２線式伝送路の任この点に挿入でき、現
場でどのような場所、状態に設置されるかわからない発
（Δ器との通信をｉｉＪ能にした点が評価されている。The portable communication device can be inserted at any point on the two-wire transmission line, making it possible to communicate with the Δ device without knowing where or in what condition it will be installed at the site. .
従って、この利点も失うことはできない。Therefore, this advantage cannot be lost either.
このような課題を解決するために本発明による携帯用通
信器は、発信器のデータを無線により設定する無線交信
手段を設けるようにしたものである。In order to solve these problems, a portable communication device according to the present invention is provided with a wireless communication means for wirelessly setting data of a transmitter.
（作用〕
本発明による携帯用通信器を適用した工業目測システム
においては、データ設定中であっても発信器はリアルタ
イムでプロセス量を発信することが可能である。(Function) In the industrial sighting system to which the portable communication device according to the present invention is applied, the transmitter can transmit process quantities in real time even while data is being set.
第１図は、本発明による携帯用通信器の一実施例が適用
された工業計測システムを示す系統図である。同図にお
いて、１は発信器、２は携帯用通信器（ＳＦＣ） 、３
は空間伝搬形光伝送路、４は４〜２０ｍＡ２ＶＡ式伝送
路、５は計器室に配置さである。また、１１は被測定物
理量ａを検出するセンサ、１２はセンサ１１の出力信号
をＡ／Ｄ変換するＡ／Ｄ変換器、１３は発信器ｌ全体を
制御するＣＰＵ、１４は携帯用通信器２と無線交信をす
る光インタフェース、１５は伝送路２に４〜２０ｍへの
信号を伝送するだめの電気インタフェース、２１は無線
交信手段としての光インタフェース、２２は携帯用通信
器２全体を制？’ｆｌｌするＣＰＵ、２３はキー・パッ
ド、プリンタ等を有するマン・マシンインタフェース、
５１はプロセス入出力装置５の電気インタフェースであ
る。FIG. 1 is a system diagram showing an industrial measurement system to which an embodiment of a portable communication device according to the present invention is applied. In the figure, 1 is a transmitter, 2 is a portable communication device (SFC), and 3 is a transmitter.
4 is a space propagation type optical transmission line, 4 is a 4-20 mA 2VA type transmission line, and 5 is arranged in the control room. Further, 11 is a sensor that detects the measured physical quantity a, 12 is an A/D converter that A/D converts the output signal of the sensor 11, 13 is a CPU that controls the entire transmitter l, and 14 is a portable communication device 2. 15 is an electrical interface for transmitting signals from 4 to 20 m to the transmission path 2, 21 is an optical interface as a means of wireless communication, and 22 is for controlling the entire portable communication device 2. 23 is a man-machine interface with a key pad, printer, etc.;
51 is an electrical interface of the process input/output device 5;
第２図は発信器１の光インタフェースを示し、１４１は
ＰＩＮのフォトダイオード（ＰＤ） 、１４２はフォト
ダイオード１４１出力が入力される受信部、１４３はＵ
ＳＡＲＴ （汎用同期・非同朋レシーバ・トランスミッ
タ）、１４４は内部ハス、１４５は発光ダイオード（Ｌ
ＥＤ）を駆動するＬＥＤドライバ、１４６は発光ダイオ
ード（ＬＥＤ）である。FIG. 2 shows the optical interface of the transmitter 1, where 141 is a PIN photodiode (PD), 142 is a receiver to which the output of the photodiode 141 is input, and 143 is a U
SART (general purpose synchronous/asynchronous receiver/transmitter), 144 is an internal lotus, 145 is a light emitting diode (L
146 is a light emitting diode (LED).
また第３図は、指示メータ部６の光受信素子（ＰＤ）１
４１と光発信素子（ＬＥＤ）１４６とを配置した発（＋
’ｉ ２’Ａ １の例と、液晶デバイス（ＬＣＤ）とキ
ー・バントを有する携帯用通信器２の例とを示す斜視図
である。Further, FIG. 3 shows the optical receiving element (PD) 1 of the indicator meter section 6.
41 and a light emitting element (LED) 146 (+
1 is a perspective view of an example of 'i2'A 1 and an example of a portable communicator 2 having a liquid crystal device (LCD) and a key band; FIG.
次に動作について説明する。発信器１はセンサ１１で受
けたアナログ測定信号（被測定物理量）ａをＡ／Ｄ変換
器１２でデジタル値に変換し、このデジタル値に対して
レンジング、リニアライズを行なった後、電気インタフ
ェース１５を介し、４〜２０ｍＡをピーク・ツー・ピー
ク （ｐ ｅ ａ ｋｔｏ ｐｅａｋ）とするデジタ
ル信号またはＤ／Ａ変換器を介したアナログ信号として
プロセス入出力装置５へ送出する。このとき発信２”ｘ
１は４〜２０ｍＡの２線式伝送路４よりパワー供給を
受けている。発信器１は光インタフェース１４を有して
おり、携帯用通信器２の光インタフェース２１により携
帯用通信器２と交信することができる。Next, the operation will be explained. The transmitter 1 converts the analog measurement signal (physical quantity to be measured) a received by the sensor 11 into a digital value with the A/D converter 12, performs ranging and linearization on this digital value, and then sends it to the electrical interface 15. The signal is sent to the process input/output device 5 as a digital signal with a peak-to-peak voltage of 4 to 20 mA or as an analog signal via a D/A converter. At this time, the transmission is 2”x
1 is supplied with power from a two-wire transmission line 4 of 4 to 20 mA. The transmitter 1 has an optical interface 14 and can communicate with the portable communication device 2 through the optical interface 21 of the portable communication device 2.
この光伝送路３を通して、携帯用通信器２側からゼロ、
スパン調整を行なったり、携帯用通信器２に発信器１の
ステータス情報を伝送したりすることができる。Through this optical transmission line 3, from the portable communication device 2 side to zero,
It is possible to perform span adjustment and to transmit status information of the transmitter 1 to the portable communication device 2.
以上説明したように本発明による携帯用通信器は、発信
器のデータを無線により設定する無線交信手段を設けた
ことにより、発信器と２線式伝送路を介さずに直接交信
できるので、上記伝送路を切ることなく、離れた所から
発信器にデータ設定を行ない、かつ、２綿式伝送路を共
有することがないので、データ設定中であっても発信器
はリアルタイムでプロセス量を発信することが可能とな
る効果がある。As explained above, the portable communication device according to the present invention is provided with a wireless communication means for wirelessly setting the data of the transmitter, so that it can communicate directly with the transmitter without going through a two-wire transmission path. Data can be set to the transmitter from a remote location without cutting the transmission line, and since the two-way transmission line is not shared, the transmitter can transmit process quantities in real time even while data is being set. This has the effect of making it possible to do so.
第１図は本発明による携帯用通信器の一実施例が適用さ
れた工業計測システムを示す系統図、第２図は第１図の
システムを構成する発信器の光インタフェースを示す系
統図、第３図は発信器と携帯用通信器の一例を示す斜視
図である。
ｌ・・・発信器、２・・・携帯用通信器（ＳＦＣ） 、
３・・・空間伝搬形光伝送路、４・・・２線式伝送路、
５・・・プロセス入出力値’ＩＺ （Ｐ １０） 、１
１・・・センサ、１２・・・Ａ／Ｄ変換器、１３．２２
・・・ＣＰＵ、１４．２１・・・光インタフェース、１
５．５１・・・電気インタフェース、２３・・・マン・
マシンインタフェース。1 is a system diagram showing an industrial measurement system to which an embodiment of the portable communication device according to the present invention is applied; FIG. 2 is a system diagram showing an optical interface of a transmitter constituting the system of FIG. 1; FIG. 3 is a perspective view showing an example of a transmitter and a portable communication device. l... Transmitter, 2... Portable communication device (SFC),
3... Space propagation type optical transmission line, 4... Two-wire transmission line,
5...Process input/output value 'IZ (P 10), 1
1... Sensor, 12... A/D converter, 13.22
...CPU, 14.21...Optical interface, 1
5.51... Electrical interface, 23... Man.
machine interface.
Claims (1)
信器において、前記発信器のデータを無線により設定す
る無線交信手段を備えた携帯用通信器。A portable communication device for setting data such as a span and zero of a transmitter, the portable communication device comprising a wireless communication means for wirelessly setting data for the transmitter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9826588A JPH01270200A (en) | 1988-04-22 | 1988-04-22 | Portable communication device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9826588A JPH01270200A (en) | 1988-04-22 | 1988-04-22 | Portable communication device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01270200A true JPH01270200A (en) | 1989-10-27 |
Family
ID=14215114
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9826588A Pending JPH01270200A (en) | 1988-04-22 | 1988-04-22 | Portable communication device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01270200A (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61118900A (en) * | 1984-10-25 | 1986-06-06 | シーガー リミテツド | Remote parameter adjustor for electric circuit in housing |
| JPS6264804A (en) * | 1985-09-05 | 1987-03-23 | Yokogawa Electric Corp | Signal transmitter |
-
1988
- 1988-04-22 JP JP9826588A patent/JPH01270200A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61118900A (en) * | 1984-10-25 | 1986-06-06 | シーガー リミテツド | Remote parameter adjustor for electric circuit in housing |
| JPS6264804A (en) * | 1985-09-05 | 1987-03-23 | Yokogawa Electric Corp | Signal transmitter |
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