JP2767895B2 - Fluid control device - Google Patents
Fluid control deviceInfo
- Publication number
- JP2767895B2 JP2767895B2 JP1148953A JP14895389A JP2767895B2 JP 2767895 B2 JP2767895 B2 JP 2767895B2 JP 1148953 A JP1148953 A JP 1148953A JP 14895389 A JP14895389 A JP 14895389A JP 2767895 B2 JP2767895 B2 JP 2767895B2
- Authority
- JP
- Japan
- Prior art keywords
- signal
- circuit
- power supply
- switching
- control device
- 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.)
- Expired - Lifetime
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- Power Sources (AREA)
- Safety Devices In Control Systems (AREA)
- Flow Control (AREA)
- Testing And Monitoring For Control Systems (AREA)
Description
【発明の詳細な説明】 産業上の利用分野 本発明は流体の制御技術に属する分野であって、流体
の制御装置における電源制御に係わるものである。Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to the field of fluid control technology, and relates to power supply control in a fluid control device.
従来の技術 従来の流体制御装置の信号系統（細線）、電源系統
（太線）を第４図に示す。流量検出器１、計量回路２、
判断回路３、遮断装置４、表示器５、通信回路６、電源
部７の機能ブロックから構成されている。信号系統おお
いて、１は、流体の流量を検出して信号を発信し、計量
回路２に入力する。計量回路２は前記信号をカウント
し、計量を演算する。判断回路３は、前記計量値を、あ
らかじめ記憶していた安全基準値と照合判断し、計量値
が安全基準値を逸脱する時および電源部７の電圧が所定
値以下の時に異常信号を発信して、遮断装置４および表
示器５を作動させて流体を遮断すると共に遮断事由を表
示する。安全基準を逸脱した原因を除去した後、遮断装
置４を復帰開弁して流体を通す。2. Description of the Related Art FIG. 4 shows a signal system (thin line) and a power supply system (thick line) of a conventional fluid control device. Flow detector 1, measuring circuit 2,
It is composed of functional blocks of a judgment circuit 3, a cutoff device 4, a display 5, a communication circuit 6, and a power supply unit 7. In the signal system, 1 detects the flow rate of the fluid, transmits a signal, and inputs the signal to the measuring circuit 2. The weighing circuit 2 counts the signal and calculates weighing. The determination circuit 3 compares the measured value with a safety reference value stored in advance, and sends an abnormal signal when the measured value deviates from the safety reference value and when the voltage of the power supply unit 7 is equal to or less than a predetermined value. Then, the shut-off device 4 and the indicator 5 are operated to shut off the fluid and display the shut-off reason. After eliminating the cause of deviating from the safety standards, the shut-off device 4 is returned and opened to allow the fluid to flow.
また３は通信回路６からの信号を受けて、遮断装置４
および表示器５を作動させると共に、前記異常により遮
断した事由信号を通信回路６を通じて外部に送信する機
能を持つ。通信回路６は、流体制御装置の外部要素との
通信インタフェースの機能を持つ。外部要素には、流体
制御装置を遠隔操作するリモコンおよび、電話回線イン
タフェースを介してオンラインによる集中監視センタ等
がある。電源系統においては、小容量電池によって、流
量検出器１、計量回路２、判断回路３および通信回路６
の各回路と、遮断装置４および表示器５のアクチュエー
タに電源を供給している。Further, 3 receives a signal from the communication circuit 6 and receives a signal from the shutoff device 4.
And a function of operating the display 5 and transmitting the event signal interrupted by the abnormality to the outside through the communication circuit 6. The communication circuit 6 has a function of a communication interface with an external element of the fluid control device. The external elements include a remote controller for remotely controlling the fluid control device, a centralized monitoring center online via a telephone line interface, and the like. In the power supply system, the flow rate detector 1, the metering circuit 2, the determination circuit 3, and the communication
And the actuators of the shut-off device 4 and the indicator 5 are supplied with power.
発明が解決しようとする課題 しかしながら上記の様な構成において、流体制御装置
外からの信号、例えばリモコンまたは集中監視センタか
らの遮断信号により遮断装置４および表示器５を作動さ
せる回数が多くなる場合がある。外出の都度、リモコン
を操作して遮断弁を閉止する使い方が多い。またリモコ
ンまたは集中監視センタから遮断弁復帰信号を送って、
遮断装置４を復帰開弁することがある。通常遮断弁は自
己保持型であるので復帰動作には相当の電力が必要であ
る。電源部は小型容量電池であるので、前記のような使
い方をすると、電源寿命が短縮され課題を有していた。Problems to be Solved by the Invention However, in the above-described configuration, the number of times that the shut-off device 4 and the display 5 are activated by a signal from outside the fluid control device, for example, a shut-off signal from a remote control or a centralized monitoring center may be increased. is there. There are many ways to close the shut-off valve by operating the remote control every time you go out. Also, by sending a shut-off valve return signal from the remote control or centralized monitoring center,
The shutoff device 4 may be returned and opened. Normally, the shut-off valve is a self-holding type, so that a considerable amount of power is required for the return operation. Since the power supply unit is a small-capacity battery, the use as described above has a problem that the power supply life is shortened.
本発明は、かゝる従来の課題を解決するもので、本装
置外からの指令により、遮断装置および表示器を駆動す
るときは、外部の電源によって実施することを目的とす
る。An object of the present invention is to solve such a conventional problem, and it is an object of the present invention to drive an interrupting device and a display in response to a command from outside the apparatus, using an external power supply.
課題を解決するための手段 上記課題を解決するために本発明の流体制御装置は、
遮断指令電文を解読する通信回路と、遮断指令によって
電源切替信号および遮断信号を出力する判断回路と、前
記電源切替信号を受けて作動する切替回路と、前記遮断
信号を受けて駆動する遮断装置および表示器から構成さ
れている。Means for Solving the Problems In order to solve the above problems, the fluid control device of the present invention includes:
A communication circuit that decodes a shutdown command message, a determination circuit that outputs a power switching signal and a shutdown signal according to the shutdown command, a switching circuit that operates in response to the power switching signal, a shutdown device that receives and drives the shutdown signal, and It consists of a display.
作用 本発明は、上記構成において、本装置外より遮断信号
が通信回路に着信すると通信回路は電文を解読する。こ
の指令に基いて、外部電源が有りの時は、切替回路へ外
部電源への切替信号を出力し、切替回路は電源を外部電
源に切替える。外部電源が無しの時は、出力しない。判
断回路は切替回路へ切替信号を出力し所定時間t1経過後
に遮断装置と表示器へ遮断信号を送出し、遮断装置と表
示器を駆動して流体を閉止すると共に表示する。また判
断回路が異常状態を検知した時点で切替回路へ電源切替
信号を出力し電池から外部電源へ切替える。判断回路が
異常を検出した時点から所定時間をt1を経過した後、遮
断装置と表示器へ遮断信号を送出し、遮断装置と表示器
５を駆動して流体を閉止すると共に表示する。Effect of the Invention According to the present invention, in the above configuration, when a cutoff signal arrives at the communication circuit from outside the apparatus, the communication circuit decodes the message. Based on this command, when there is an external power supply, a switching signal to the external power supply is output to the switching circuit, and the switching circuit switches the power supply to the external power supply. No output when there is no external power supply. Decision circuit sends an output a switching signal to the switching circuit cut-off signal to the display unit a shut-off device after a predetermined time t 1 has elapsed, by driving the shut-off device and a display device for displaying as well as close the fluid. When the determination circuit detects an abnormal state, the power supply switching signal is output to the switching circuit to switch from the battery to the external power supply. After the decision circuit has elapsed t 1 for a predetermined time from the time of detecting an abnormality, the cutoff signal is sent to a shut-off device display, and drives the display 5 a shut-off device for displaying together to close the fluid.
次に遮断装置を手動により復帰すると前記装置は復帰
信号を出力し判断回路が前記復帰信号を受付けてから所
定時間t2経過後に電源切換信号を切替回路へ送出し、切
替回路は外部電源から電源部に切替る。Power switching signal after a predetermined time t 2 has elapsed from the apparatus and returned manually accept the return signal judging circuit outputs a return signal then the blocking device sends to the switching circuit, the switching circuit power supply from an external power source Switch to department.
遠隔制御により弁復帰を行う場合は、本装置外から通
信回路が復帰信号を受信すると通信回路は電文を解読す
る。判断回路はこの指令により遮断装置に復帰信号を送
出する。遮断装置は遠隔復帰機構（例えばモータによる
復帰機構）を持ち、始動する。始動から復帰完了までの
時間を配慮して時間t2は定めてあるので、判断回路は遮
断装置に復帰信号を送出して所定時間t2後に切替回路へ
切替信号を送出し、切替回路は外部電源を電池に切替え
て復帰完了となる。In the case of performing valve reset by remote control, when the communication circuit receives a reset signal from outside the apparatus, the communication circuit decodes the electronic message. The judging circuit sends a return signal to the shut-off device according to this command. The shut-off device has a remote return mechanism (for example, a return mechanism by a motor) and starts. Since the time from the start to the return completion time t 2 in consideration are determined, the determination circuit by sending a return signal to the blocking device sends a switching signal to the switching circuit after a predetermined time t 2, the switching circuit is external The power is switched to the battery and the return is completed.
実施例 以下本発明の実施例を添付図に基いて説明する。第１
図は、本装置の機能ブロック図、第２図は切替回路の実
施例を示す。Embodiment An embodiment of the present invention will be described below with reference to the accompanying drawings. First
The figure shows a functional block diagram of the present apparatus, and FIG. 2 shows an embodiment of a switching circuit.
流量検出器１と、計量回路２と、判断回路３と、遮断
回路４と、表示器５と、通信回路６と、電源部７と、切
替回路８から構成されている。It comprises a flow rate detector 1, a metering circuit 2, a judgment circuit 3, a shutoff circuit 4, a display 5, a communication circuit 6, a power supply unit 7, and a switching circuit 8.
流量検出器１はリードスイッチが計量機構の回転部に
取付けられた磁石との相互作用により作動してパルス信
号を出力する構造で、流量をパルスとして検出できる。The flow rate detector 1 has a structure in which a reed switch is operated by interaction with a magnet attached to a rotating part of a measuring mechanism to output a pulse signal, and can detect a flow rate as a pulse.
計量回路２は流量検出器１のパルス信号を計量および
積算する回路である。判断回路３は正常流量値を記憶し
ており、計量回路２の計量値が正常値を逸脱すれば異常
信号を遮断回路４と表示器５へ出力する機能と、電源部
７の電圧値が所定値以下になると異常信号を遮断回路４
と表示器５へ出力する機能と、外部センサ（感震器、ガ
ス圧センサ、ガス警報器等）の入力により異常信号を遮
断回路４と表示器５へ出力する機能と通信回路６からの
信号または遮断回路４の復帰信号を検知して夫々遅延タ
イマを駆動して所定時間後に遮断回路４または切替回路
８を作動させる機能と、各種異常信号を通信回路６へ送
出する機能を有する。The measuring circuit 2 is a circuit for measuring and integrating the pulse signal of the flow detector 1. The judging circuit 3 stores a normal flow value, a function of outputting an abnormal signal to the shutoff circuit 4 and the display 5 when the measured value of the measuring circuit 2 deviates from the normal value, and a voltage value of the power supply unit 7 is determined. When the value becomes less than the value, the abnormal signal
And the function of outputting an abnormal signal to the shut-off circuit 4 and the display 5 by the input of an external sensor (seismic sensor, gas pressure sensor, gas alarm, etc.) and the signal from the communication circuit 6 Alternatively, it has a function of detecting the return signal of the cutoff circuit 4 and driving the delay timer to activate the cutoff circuit 4 or the switching circuit 8 after a predetermined time, and a function of sending various abnormal signals to the communication circuit 6.
通信回路６は流体制御装置外部からの制御信号を受信
し解読して判断回路３に送出する機能と計量回路２から
の計量値および判断回路３からの異常情報を電文構成し
流体制御装置から宅内情報盤、電話回線網制御装置等を
経て集中監視センタへ送出する機能を有する。The communication circuit 6 receives and decodes a control signal from the outside of the fluid control device, decodes the signal, and sends it to the determination circuit 3. It has the function of sending it to the centralized monitoring center via the information panel, telephone network controller, etc.
電源部７は長寿命で電圧特性の良好なリチウム電池を
用いる。切替回路８は遮断回路および表示器５を駆動す
る時の電池消費量を抑えるため、外部から電源を供給す
るため内外電源の切替の機能を有する。実施例として第
２図に示す。The power supply unit 7 uses a lithium battery having a long life and good voltage characteristics. The switching circuit 8 has a function of switching between an internal power supply and an external power supply in order to supply power from the outside in order to suppress the battery consumption when driving the shutoff circuit and the display 5. An example is shown in FIG.
宅内情報盤等からの外部電源11と、電源部７とを自己
保持型リレーによって切替えて回路電源12を供給する。A circuit power supply 12 is supplied by switching an external power supply 11 from a home information panel or the like and the power supply unit 7 by a self-holding relay.
トランジスタ13および14は切替セット信号15および切
替リセット信号16によって作動して10を駆動する機能を
もつ。17は切替の際の電源回路の寸断を防ぐためのコン
デンサである。The transistors 13 and 14 have a function of being driven by the switching set signal 15 and the switching reset signal 16 to drive the transistor 10. Reference numeral 17 denotes a capacitor for preventing disconnection of the power supply circuit at the time of switching.
第３図は外部制御信号、判断回路出力、遮断装置出
力、切替回路の作動状態をタイミングチャートで示す。FIG. 3 is a timing chart showing the external control signal, the output of the judgment circuit, the output of the shutoff device, and the operating state of the switching circuit.
上記構成によれば外部制御信号（遮断）または異常信
号により切替回路８が外部電源に切替り所定時間後遮断
信号により遮断回路４および表示器５が作動し流体が遮
断する。手動復帰または外部制御信号（復帰）により所
定時間後復帰信号により切替回路８が作動して電源部７
に切替る。即ち本流体制御装置において消費電流のウエ
イトの高い遮断回路４および表示器５が作動する時は外
部電源に切替えて作動させることにより内蔵する電池容
量を極力小型化することができる。停電対策として電池
使用は必須であるので停電以外は外部電源を利用する思
想である。According to the above configuration, the switching circuit 8 is switched to an external power supply by an external control signal (cutoff) or an abnormal signal, and after a predetermined time, the cutoff signal 4 activates the cutoff circuit 4 and the display 5 to cut off the fluid. The switching circuit 8 is activated by a return signal after a predetermined time by a manual return or an external control signal (return), and the power supply unit 7
Switch to. That is, when the shut-off circuit 4 and the indicator 5 which consume a large amount of current in the fluid control device are operated, the internal battery capacity can be reduced as much as possible by switching to an external power supply and operating. Since the use of batteries is indispensable as a measure against power failure, the idea is to use an external power supply except for power failure.
発明の効果 以下のように本発明の電源の切替回路を持った流体制
御装置によれば次の効果が得られる。すなわち、外部電
源が利用できるので電池を小型化でき、電池寿命を伸ば
すことができる。Effects of the Invention According to the fluid control device having the power supply switching circuit of the present invention as described below, the following effects can be obtained. That is, since an external power source can be used, the size of the battery can be reduced, and the battery life can be extended.
第１図は、本発明の一実施例における流体制御装置の機
能ブロック図で、システム全体の相互関係を示す。第２
図は同切替回路の実施例を示す回路図、第３図は同切替
回路を駆動するまでの信号関係を示すタイムチャート、
第４図は従来の機能ブロック図である。 １……流量検出器、２……計量回路、３……判断回路、
４……遮断装置、５……表示器、６……通信回路、７…
…電源回路、８……切替回路、10……自己保持型リレ、
11……外部電源、12……回路電源、13,14……トランジ
スタ、15……外部切替セット信号（判断回路出力２）、
16……外部切替リセット信号（判断回路出力１）、17…
…コンデンサ。FIG. 1 is a functional block diagram of a fluid control device according to an embodiment of the present invention, showing the interrelationship of the entire system. Second
FIG. 3 is a circuit diagram showing an embodiment of the switching circuit, FIG. 3 is a time chart showing a signal relationship until the switching circuit is driven,
FIG. 4 is a conventional functional block diagram. 1 ... Flow detector, 2 ... Measurement circuit, 3 ... Judgment circuit,
4 ... Interruption device, 5 ... Display, 6 ... Communication circuit, 7 ...
... Power supply circuit, 8 ... Switching circuit, 10 ... Self-holding relay,
11 ... external power supply, 12 ... circuit power supply, 13, 14 ... transistor, 15 ... external switching set signal (judgment circuit output 2),
16 ... External switching reset signal (judgment circuit output 1), 17 ...
... capacitors.
Claims (4)
流量を計測する計量回路と、前記計量回路が計量した値
が正常か異常かを判断すると共に前記異常信号かあるい
は流体制御装置外からの制御信号かを判断する判断回路
と、前記異常信号または流体制御装置外からの制御信号
によって作動する遮断装置と、遮断事由を表示する表示
器と、流体制御装置外と通信する通信回路と、電源部を
有する流体制御装置において、前記判断回路からの信号
により少なくとも遮断装置および表示器への電源を外部
の電源に切替える切替回路を有する流体制御装置。1. A flow rate detector for detecting a flow rate of a fluid, a weighing circuit for measuring the flow rate, and determining whether a value measured by the weighing circuit is normal or abnormal, and determining whether the value is an abnormal signal or an external signal. A determination circuit that determines whether the control signal is from the control signal, a shutoff device that is activated by the abnormal signal or a control signal from outside the fluid control device, an indicator that displays the reason for the shutoff, and a communication circuit that communicates with the outside of the fluid control device. And a switching circuit for switching at least a power supply to the shut-off device and the display to an external power supply according to a signal from the determination circuit.
信号を入力すると同時に切替回路に電源切替信号を出力
し所定時間後に遮断装置および表示器に遮断信号を出力
する遅延タイマ内臓の判断回路を有する特許請求の範囲
第（１）項記載の流体制御装置。2. A delay timer built-in determination circuit for outputting a power switching signal to a switching circuit at the same time as inputting an abnormal signal or a control signal from outside the fluid control device and outputting a shutdown signal to a shutoff device and a display after a predetermined time. The fluid control device according to claim 1, further comprising:
入力した後、所定時間後に前記切替回路に電源切替信号
を出力する遅延タイマ内蔵の判断回路を有する特許請求
の範囲第（１）項記載の流体制御装置。3. A judgment circuit having a built-in delay timer for outputting a power supply switching signal to the switching circuit after a predetermined time after a return signal of the fluid control device or the shutoff device is input. Fluid control device.
する特許請求の範囲第（１）項記載の流体制御装置。4. The fluid control device according to claim 1, further comprising a judgment circuit having a function of detecting an external power supply voltage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1148953A JP2767895B2 (en) | 1989-06-12 | 1989-06-12 | Fluid control device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1148953A JP2767895B2 (en) | 1989-06-12 | 1989-06-12 | Fluid control device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0314001A JPH0314001A (en) | 1991-01-22 |
| JP2767895B2 true JP2767895B2 (en) | 1998-06-18 |
Family
ID=15464349
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1148953A Expired - Lifetime JP2767895B2 (en) | 1989-06-12 | 1989-06-12 | Fluid control device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2767895B2 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005050194A (en) * | 2003-07-30 | 2005-02-24 | Matsushita Electric Ind Co Ltd | Electronic device and optical disk device |
| JP6365234B2 (en) * | 2014-10-27 | 2018-08-01 | 京セラドキュメントソリューションズ株式会社 | Power supply device and image forming apparatus having the same |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS591884A (en) * | 1982-06-25 | 1984-01-07 | Matsushita Electric Ind Co Ltd | Gas shut off device |
| JPS60164819A (en) * | 1984-02-07 | 1985-08-27 | Matsushita Electric Ind Co Ltd | Flow rate controller |
| JP2713399B2 (en) * | 1986-04-16 | 1998-02-16 | 松下電器産業株式会社 | Hot water mixing equipment |
-
1989
- 1989-06-12 JP JP1148953A patent/JP2767895B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0314001A (en) | 1991-01-22 |
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