JPS6237737B2 - - Google Patents
Info
- Publication number
- JPS6237737B2 JPS6237737B2 JP56188688A JP18868881A JPS6237737B2 JP S6237737 B2 JPS6237737 B2 JP S6237737B2 JP 56188688 A JP56188688 A JP 56188688A JP 18868881 A JP18868881 A JP 18868881A JP S6237737 B2 JPS6237737 B2 JP S6237737B2
- Authority
- JP
- Japan
- Prior art keywords
- section
- voltage detection
- voltage
- power supply
- unit
- 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
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23N—REGULATING OR CONTROLLING COMBUSTION
- F23N1/00—Regulating fuel supply
- F23N1/002—Regulating fuel supply using electronic means
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23N—REGULATING OR CONTROLLING COMBUSTION
- F23N2223/00—Signal processing; Details thereof
- F23N2223/08—Microprocessor; Microcomputer
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23N—REGULATING OR CONTROLLING COMBUSTION
- F23N5/00—Systems for controlling combustion
- F23N5/18—Systems for controlling combustion using detectors sensitive to rate of flow of air or fuel
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23N—REGULATING OR CONTROLLING COMBUSTION
- F23N5/00—Systems for controlling combustion
- F23N5/20—Systems for controlling combustion with a time program acting through electrical means, e.g. using time-delay relays
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Feeding And Controlling Fuel (AREA)
- Regulation And Control Of Combustion (AREA)
- Control Of Combustion (AREA)
Description
【発明の詳細な説明】
本発明は、電池を電源としたマイクロコンピユ
ータを使用した燃料遮断制御装置に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a fuel cutoff control device using a microcomputer powered by a battery.
従来、電池を電源とした燃料遮断制御装置はま
だ多く見られていない。又、電池を電源とした一
般的な機器の多くは、電池電圧が低下した場合、
例えば時計、電卓などのようにすでに表示部があ
るものに見られるように、本来の機能を失つた事
は使用が時間誤差の増大、演算が不能といつた状
態を知つてはじめて電池電圧が低下したことがわ
かるようになつている。このように、電圧低下時
の動作保証がないものが多い。 Conventionally, there have not been many fuel cutoff control devices that use batteries as a power source. In addition, many common devices that use batteries as a power source, if the battery voltage drops,
For example, as can be seen in devices that already have a display, such as watches and calculators, the loss of their original function means an increase in time error during use, and a drop in battery voltage only when they realize that calculations are no longer possible. I'm starting to understand what happened. In this way, there are many products that do not guarantee operation when the voltage drops.
燃料遮断制御装置の機能は、例えば各家庭のガ
スに見られるような供給路の入口に設置し、ガス
の連続流出時などにおいて、その流量から異常と
判断された場合に自動的に供給路を遮断するもの
であり、このような装置は年中監視動作を維持す
る必要がある。又、この種の装置は設置場所が遠
方（屋外）にあり、日常使用者が燃料を使用する
際に電池の有無をチエツクできないため、電池電
圧低下時には、電圧低下の報知手段を確実に動作
させて、その情報を維持させる必要もある。 The function of a fuel cutoff control device is to install it at the entrance of a gas supply line, such as the one found in each household, and automatically shut down the supply line when it is determined that there is an abnormality based on the flow rate, such as when gas is continuously flowing out. Such equipment must maintain monitoring operation all year round. In addition, this type of device is installed far away (outdoors), and daily users cannot check the presence or absence of batteries when using fuel, so when the battery voltage drops, it is necessary to ensure that the voltage drop notification means is activated. There is also a need to maintain that information.
本発明は電池電圧チエツク機能を付加したもの
において、低消費電力化と使用電源電圧範囲の拡
大をはかり、装置の年中監視動作を可能ならしめ
るとともに、電池電圧低下時にも確実に報知機能
を維持し、使用者が装置の保守を完全にできるよ
うにすることを目的としている。 The present invention is equipped with a battery voltage check function, which aims to reduce power consumption and expand the range of power supply voltage used, making it possible to monitor the device all year round, and reliably maintain the notification function even when the battery voltage drops. The purpose is to allow the user to fully maintain the equipment.
本発明は上記目的を達成するために、電池電源
の電圧検出部と、この電圧検出部への電源供給を
開閉する電圧検出開閉部と、制御回路と電源部を
開閉する自己保持回路からなる電源開閉部と、所
定の時間毎に電圧検出開閉部を駆動し電圧低下時
に表示部と電源開閉部を駆動する主制御部を備え
たことを基本的構成とし、この構成により、電池
電圧を間欠的にチエツクし得るものである。 In order to achieve the above-mentioned object, the present invention provides a power supply comprising a voltage detection part of a battery power source, a voltage detection switching part that opens and closes the power supply to the voltage detection part, a control circuit, and a self-holding circuit that opens and closes the power supply part. The basic configuration includes a switching section and a main control section that drives the voltage detection switching section at predetermined intervals and drives the display section and power switching section when the voltage drops.With this configuration, the battery voltage can be adjusted intermittently. This is something you can check.
以下、本発明の一実施例について第１図により
説明する。１は電池からなる電源部、２は制御回
路９と電源部１を開閉する自己保持回路からなる
電源開閉部、３は電池の電圧とあらかじめ定めら
れた制御回路の最低動作電圧を比較する電圧検出
部、４は電圧検出部の電源供給を開閉する電圧検
出開閉部、５はマイクロコンピユータからなる主
制御部、６は電池電圧低下を表示する自己保持型
の表示部、７は燃料供給路を遮断する自己保持型
遮断弁からなる遮断部、８は燃料の流量信号を入
力するセンサー入力部である。 An embodiment of the present invention will be described below with reference to FIG. Reference numeral 1 denotes a power supply unit consisting of a battery, 2 a power supply opening/closing unit consisting of a control circuit 9 and a self-holding circuit that opens and closes the power supply unit 1, and 3 a voltage detection unit that compares the battery voltage with a predetermined minimum operating voltage of the control circuit. 4 is a voltage detection opening/closing unit that opens and closes the power supply to the voltage detection unit, 5 is a main control unit consisting of a microcomputer, 6 is a self-holding display unit that displays a battery voltage drop, and 7 is a blocker for cutting off the fuel supply path. 8 is a sensor input section that inputs a fuel flow rate signal.
まず電源部１を投入すると、電源開閉部はリセ
ツトされ、閉状態になり制御回路９は動作状態に
なる。主制御部５はマイクロコンピユータからな
り、燃料の流量信号を監視し異常な流量になると
遮断部７をを駆動して、燃料供給路を遮断する。
又繰り返しタイマー機能を有しており、定期的
（例えば24時間毎）に電圧検出開閉部４を駆動す
ることにより電圧検出部３を動作状態にし、電圧
検出部からの信号を入力して、電池電圧の有無を
チエツクすると同時に、電圧検出部３の動作を停
止する。この時電圧チエツクの結果が電圧低下状
態であれば表示部６を動作させる。電池電圧1.5
〜2V程度の電圧を検出するのには、比較的消費
電力の大きなバイポーラ型のトランジスタを使用
した回路が必要であるが、このように定期的にチ
エツクすることにより低消費電力をはかつてい
る。又、表示部を駆動する際には電圧検出部３の
消費電力はゼロになつているので、電池が寿命近
くにあり内部抵抗が増加している時点においても
確実に表示部を動作させることができる。このこ
とは例えば比較的大電流を必要とするマグネツト
を反転させる自己保持型の表示部を用いた場合
は、反転エネルギーを供給する為の巻線抵抗が低
い為に特に有効となる。つまり、比較的大電流を
要する回路部を離散的に駆動することにより実質
的負荷量を低減し、電池電圧の使用範囲も拡大し
ている。さらに電圧低下時には、所定の時間表示
部６を駆動した後、電源開閉部２を開き、電源部
１を制御回路９から切り離すことにより、制御回
路９に最低動作電圧以下の電圧が印加されること
がなくなり、中途半端な電圧による回路の誤動作
が防止できる。ゆえに、電圧低下後の表示部６、
遮断部７の誤表示、誤遮断などの事態を防止でき
る。しかるのち使用者が、表示部６を見て電池を
交換することにより、電源開閉部２がリセツトさ
れ、電源部１と制御回路９とが閉状態になり制御
装置の動作は再開される。この時、主制御部５が
初期化された時に電池電圧チエツクをおこない、
表示部６の反転出力を出すようにしておけば、使
用者の手をわずらわすことなく、表示部６をリセ
ツトすることができる。又、この時点から繰り返
しタイマーをスタートするようにしておけば、定
期的に電池電圧のチエツクをおこなうことができ
る。 First, when the power supply section 1 is turned on, the power supply opening/closing section is reset and becomes a closed state, and the control circuit 9 becomes in an operating state. The main control section 5 is composed of a microcomputer, and monitors the fuel flow rate signal, and when an abnormal flow rate occurs, drives the cutoff section 7 to cut off the fuel supply path.
It also has a repeat timer function, and by driving the voltage detection opening/closing section 4 periodically (for example, every 24 hours), the voltage detection section 3 is put into operation, and the signal from the voltage detection section is input, and the battery is activated. At the same time as checking the presence or absence of voltage, the operation of the voltage detection section 3 is stopped. At this time, if the result of the voltage check is a voltage drop state, the display section 6 is operated. battery voltage 1.5
Detecting a voltage of about 2 V requires a circuit using bipolar transistors, which consume relatively large amounts of power, but this periodic checking reduces power consumption. Furthermore, since the power consumption of the voltage detection unit 3 is zero when driving the display unit, the display unit can be operated reliably even when the battery is close to its end of life and its internal resistance is increasing. can. This is particularly effective when using a self-holding type display unit that inverts a magnet, which requires a relatively large current, because the winding resistance for supplying inversion energy is low. In other words, by discretely driving circuit sections that require a relatively large current, the actual load amount is reduced and the usable range of battery voltage is expanded. Furthermore, when the voltage drops, after driving the display section 6 for a predetermined time, the power switch section 2 is opened and the power supply section 1 is disconnected from the control circuit 9, so that a voltage lower than the minimum operating voltage is applied to the control circuit 9. This eliminates circuit malfunction due to unreliable voltage. Therefore, the display section 6 after the voltage drop,
Situations such as erroneous display and erroneous cut-off of the cut-off unit 7 can be prevented. Thereafter, when the user looks at the display section 6 and replaces the battery, the power switching section 2 is reset, the power supply section 1 and the control circuit 9 are closed, and the operation of the control device is resumed. At this time, when the main control unit 5 is initialized, a battery voltage check is performed,
By outputting an inverted output from the display section 6, the display section 6 can be reset without bothering the user. Also, if a timer is started repeatedly from this point, the battery voltage can be checked periodically.
第２図は第１図のブロツク図にもとづいた、具
体的な一実施例である。第１図と同一番号は同じ
内容を示している。１０は自己保持型のリレーコ
イルであり、主制御部５の出力端子０２がローに
なりトランジスタ１２，１３が導通した時に接点
１０′は開状態を維持するようになつている。つ
まり電池の低下が検出された時におこなわれる動
作である。１１は、自己保持型リレーのリセツト
用スイツチであり、電池交換時に接点１１′が常
開側接点に一時的に移るようになつており、この
時リレーコイル１０に逆方向に電流が流れ接点１
０′が常閉側にもどるようになつている。１４は
電池電圧をチエツクするICでVin入力の電圧を検
出し、電池電圧＞設定電圧で出力はハイ、電池電
圧≦設定電圧で出力はローになるようになつてい
る。１５はIC１４の電源を開閉する為のトラン
ジスタで主制御部端子０１の信号で開閉される。
１６は燃料の流量を計測するリードスイツチで例
えばガス流量に応じてマグネツトが往復運動する
ようなメータに近接して設置され、トランジスタ
２７はリードスイツチ１６の動作に応動する。し
たがつて主制御部５はI2の入力端子に入つてくる
パルス数により燃料の流量を計測することができ
る。１８，１９はマグネツト表示器２２とセツト
用巻線２０とリセツト用巻線２１とを有した表示
器を駆動する為のものである。２３は遮断弁２４
を駆動する為のトランジスタである。 FIG. 2 shows a specific embodiment based on the block diagram of FIG. The same numbers as in FIG. 1 indicate the same contents. Reference numeral 10 denotes a self-holding relay coil, and when the output terminal 02 of the main control section 5 becomes low and the transistors 12 and 13 conduct, the contact 10' remains open. In other words, this is an operation performed when a low battery level is detected. Reference numeral 11 denotes a reset switch for the self-holding type relay, and when the battery is replaced, the contact 11' is temporarily moved to the normally open contact, and at this time, current flows in the reverse direction to the relay coil 10 and contacts 1
0' returns to the normally closed side. Reference numeral 14 is an IC for checking the battery voltage, which detects the voltage of the Vin input, and when the battery voltage > set voltage, the output is high, and when the battery voltage ≦ the set voltage, the output is low. Reference numeral 15 denotes a transistor for opening and closing the power supply of the IC 14, which is opened and closed by a signal from the main control unit terminal 01 .
Reference numeral 16 denotes a reed switch for measuring the flow rate of fuel, which is installed close to a meter whose magnet moves back and forth depending on the gas flow rate, for example, and a transistor 27 responds to the operation of the reed switch 16. Therefore, the main control section 5 can measure the fuel flow rate based on the number of pulses input to the input terminal of I2 . Reference numerals 18 and 19 are for driving a display having a magnetic display 22, a set winding 20, and a reset winding 21. 23 is a shutoff valve 24
This is a transistor for driving.
以上のように本発明によれば次の効果が得られ
る。 As described above, according to the present invention, the following effects can be obtained.
(1) 電池電圧チエツクを間欠的におこない、表示
器等の負荷を駆動する際には離散的に出力を出
すため、低消費電力化と使用電源電圧範囲の拡
大をはかることができる。(1) Since the battery voltage is checked intermittently and the output is output discretely when driving a load such as a display, it is possible to reduce power consumption and expand the usable power supply voltage range.
(2) 電池電圧低下時の電池の内部抵抗が大きい状
態でも確実に報知機能を動作させ、維持するこ
とができ、使用者が装置の保守を完全にでき
る。(2) Even when the internal resistance of the battery is high when the battery voltage drops, the alarm function can be reliably operated and maintained, allowing the user to completely maintain the device.
第１図は本発明の一実施例における燃料遮断制
御装置のブロツク図、第２図は第１図の具体的な
回路図である。
１……電源部、２……電源開閉部、３……電圧
検出部、４……電圧検出開閉部、５……主制御
部、６……表示部、７……遮断部、８……センサ
ー入力部。
FIG. 1 is a block diagram of a fuel cutoff control device according to an embodiment of the present invention, and FIG. 2 is a specific circuit diagram of FIG. 1. DESCRIPTION OF SYMBOLS 1... Power supply part, 2... Power switching part, 3... Voltage detection part, 4... Voltage detection switching part, 5... Main control part, 6... Display part, 7... Cutoff part, 8... Sensor input section.
Claims (1)
ー入力部と、燃料供給路を遮断する遮断部と、電
池電圧低下を表示する表示部と、前記電池の電圧
を所定の電圧と比較し主制御部に信号を出力する
電圧検出部と、前記電圧検出部への電源供給を開
閉する電圧検出開閉部と、自己保持回路からなる
電源開閉部と、前記表示部、前記電圧検出開閉
部、前記遮断部、前記電源開閉部のそれぞれを駆
動する出力端子と前記センサー入力部、前記電圧
検出部からの信号を入力する入力端子を有し、所
定の時間毎に電圧検出開閉部を駆動するとともに
電圧低下時には、前記電圧検出開閉部を開状態に
してから前記表示部を駆動し、そののち前記電源
開閉部を開とする主制御部とからなる燃料遮断制
御装置。1. A power supply unit, a sensor input unit that inputs a fuel flow rate signal, a cutoff unit that cuts off the fuel supply path, a display unit that displays a battery voltage drop, and a main control unit that compares the battery voltage with a predetermined voltage. a voltage detection section that outputs a signal to the voltage detection section, a voltage detection switching section that opens and closes the power supply to the voltage detection section, a power switching section that includes a self-holding circuit, the display section, the voltage detection switching section, and the cutoff. , an output terminal for driving each of the power switching sections, an input terminal for inputting signals from the sensor input section and the voltage detection section, and drives the voltage detection switching section at predetermined time intervals and detects voltage drop. A fuel cutoff control device comprising a main control section that sometimes opens the voltage detection opening/closing section, drives the display section, and then opens the power supply opening/closing section.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP56188688A JPS5888538A (en) | 1981-11-24 | 1981-11-24 | Fuel cutoff control device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP56188688A JPS5888538A (en) | 1981-11-24 | 1981-11-24 | Fuel cutoff control device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5888538A JPS5888538A (en) | 1983-05-26 |
| JPS6237737B2 true JPS6237737B2 (en) | 1987-08-13 |
Family
ID=16228090
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP56188688A Granted JPS5888538A (en) | 1981-11-24 | 1981-11-24 | Fuel cutoff control device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5888538A (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59181960U (en) * | 1983-05-13 | 1984-12-04 | 株式会社ノーリツ | Combustion control device |
| JPS6060555U (en) * | 1983-09-30 | 1985-04-26 | 株式会社ハ−マン | Open combustion equipment with combustion safety device |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5356567A (en) * | 1976-10-30 | 1978-05-23 | Tdk Electronics Co Ltd | Safety device for gas appliances |
-
1981
- 1981-11-24 JP JP56188688A patent/JPS5888538A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5888538A (en) | 1983-05-26 |
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