JPS6057023B2 - Disconnection/short circuit detection circuit for smoke prevention control equipment - Google Patents
Disconnection/short circuit detection circuit for smoke prevention control equipmentInfo
- Publication number
- JPS6057023B2 JPS6057023B2 JP54094436A JP9443679A JPS6057023B2 JP S6057023 B2 JPS6057023 B2 JP S6057023B2 JP 54094436 A JP54094436 A JP 54094436A JP 9443679 A JP9443679 A JP 9443679A JP S6057023 B2 JPS6057023 B2 JP S6057023B2
- Authority
- JP
- Japan
- Prior art keywords
- detection circuit
- disconnection
- pulse voltage
- control line
- circuit
- 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
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/28—Testing of electronic circuits, e.g. by signal tracer
- G01R31/282—Testing of electronic circuits specially adapted for particular applications not provided for elsewhere
- G01R31/2829—Testing of circuits in sensor or actuator systems
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Testing Of Short-Circuits, Discontinuities, Leakage, Or Incorrect Line Connections (AREA)
- Emergency Protection Circuit Devices (AREA)
Description
【発明の詳細な説明】
本発明は防排煙制御装置の断線短絡検出回路に関する
ものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a disconnection/short circuit detection circuit for a smoke prevention and exhaust control device.
一般にこの種の防排煙制御装置において、防災設備の
制御線に断線あるいは短絡故障が発生すると、防災設備
が火災発生時に用をなさないことになり、特に短絡故障
の場合には１回線の短絡故障でも大きな短絡電流が流れ
るので、制御装置のヒューズが溶断し、全制御回線が使
用不能状態に陥ることがある。Generally, in this type of smoke prevention and exhaust control equipment, if a disconnection or short-circuit failure occurs in the control line of the disaster prevention equipment, the disaster prevention equipment will be rendered useless in the event of a fire outbreak. Even in the event of a failure, a large short-circuit current will flow, which may cause the fuse in the control device to blow, rendering the entire control line unusable.
従来このような制御回線の異常を検出する際１回線毎に
テスタを用いてチェックしていたが、テスタでは断線故
障の判別が困難であるとともにチェック作業が煩られし
くかつ常時監視することができないという欠点をもつて
いた。本発明は上記の欠点を解決することを目的とする
ものである。 以下実施例について図を用いて説明する
。Conventionally, when detecting abnormalities in control lines, a tester was used to check each line, but it was difficult to identify disconnection failures with a tester, the checking process was cumbersome, and constant monitoring was not possible. It had a drawback. The present invention aims to solve the above-mentioned drawbacks. Examples will be described below using figures.
第１図は本発明に係る防排煙装置の概略構成図を示すも
ので、５、〜５０は各地区に配設された火災検出器であ
り、この火災検出器５、〜５ｎの出力により地区リレー
Ｘ１〜Ｘｎが駆動されるようになつており、いずれかの
地区で火災が発生すると、その地区に配設された火災検
出器Ｓｎが動作し、地区リレーＸｎが作動し、リレー接
点ｘｎが閉成し、火災発生地区の防災設備Ｍｎに制御線
Ｌｎを介して電源Ｅが印加され防災設備Ｍｎが作動する
ようになつている。ｘ、’ 〜ｘｎ’は制御線Ｌ−Ｌｎ
に挿入された制御線遮断リレーのリレー接点であり、断
線短絡検出回路Ｃの出力により制御されるものである。
図中Ｌｃ’、Ｌ、’〜Ｌｎ’は検知器配線である。第２
図は本発明の１制御回線の断線短絡検出回路を示すもの
で、防災設備Ｍの制御線Ｌの終端と共通制御線Ｌｃとの
間にダイオードＤを接続し、制御線Ｌにパルス発生回路
ＰＧにより発生された交番パルス電圧を電流制限抵抗Ｒ
、を介して印加しており、交番パルス電圧の印加点Ａに
脈動パルスが得られなくなつたとき動作する短絡検出回
路ＤＡとこの印加点に交番パルス電圧が現れたとき動作
する断線検出回路ＤＢとを設けたものである。図中Ｒ２
、Ｒ、は抵抗である。 以下実施例の動作について説明
する。FIG. 1 shows a schematic configuration diagram of the smoke prevention device according to the present invention. Reference numerals 5 and 50 are fire detectors installed in each area, and the outputs of the fire detectors 5 and 5n are District relays X1 to Xn are driven, and when a fire occurs in any district, the fire detector Sn installed in that district is activated, district relay Xn is activated, and relay contact xn is activated. is closed, and power E is applied to the disaster prevention equipment Mn in the area where the fire occurred via the control line Ln, so that the disaster prevention equipment Mn is activated. x,'~xn' is the control line L-Ln
This is the relay contact of the control line cutoff relay inserted in the circuit, and is controlled by the output of the disconnection/short circuit detection circuit C.
In the figure, Lc', L,' to Ln' are detector wirings. Second
The figure shows a disconnection/short circuit detection circuit for one control line according to the present invention, in which a diode D is connected between the end of the control line L of the disaster prevention equipment M and the common control line Lc, and a pulse generation circuit PG is connected to the control line L. The alternating pulse voltage generated by the current limiting resistor R
, and a short-circuit detection circuit DA operates when a pulsating pulse is no longer obtained at the application point A of the alternating pulse voltage, and a disconnection detection circuit DB operates when the alternating pulse voltage appears at this application point. It has been established that R2 in the diagram
, R is the resistance. The operation of the embodiment will be explained below.
制御線Ｌに断線、短絡故障がない場合、Ａ点に印加され
た第３図ａに示すような交番パルス電圧は制御線Ｌを終
端するダイオードＤにより半波整流されることになり、
印加点Ａの電圧は第３図をに示すように脈動パルス電圧
となり、短絡検出回路ＤＡのトランジスタＴ１が導通し
短絡リレーＹが駆動され常閉接，？１，ｙ２が開成され
るので、短絡故障表示ランプＬＡは点灯せず、制御線遮
断リレーＸ″の常閉接点Ｘ″も閉成されている。このと
き断線検出回路ＤＢ（７）ＦＥＴＴ２は逆バイアスされ
ており、ＦＥＴＴ２はしや断状態にあり、断線リレーＺ
は駆動されず、常開接点Ｚｌ，Ｚ２は開成しており、断
線表示ランプＬＢは点灯せず制御線遮断リレーＸ″も駆
動されない。次に制御線Ｌに短絡故障が発生すると、交
番パルス電圧の印加点Ａには第３図ｄに示すように脈動
パルス電圧が印加されなくなり、トランジスタＴ１がし
や断状態となり、短絡リレーＹが復帰して常閉接，？１
，ｙ２が閉成し、短絡表示ランプＬＡが点灯するととも
に制御線遮断リレーＸ″が駆動され、接点Ｘ″が開成し
て制御線Ｌに電源Ｅが印加されないようになつている。
したがつて１制御回線が短絡したために共通制御線Ｌｃ
に挿入したヒューズＦが溶断し、全制御回線が使用不能
になることはない。また制御線Ｌに断線故障が発生する
と、印加点Ａには第３図ｃに示すような交番パルス電圧
が印加されるので、ＦＥＴＴ２が導通して断線リレーＺ
が駆動され、常開接点Ｚｌ，Ｚ２が閉成することにより
断線表示ランプＬＢが点灯するとともに、制御線遮断リ
レーＸ″が駆動されるので、常閉接点Ｘ″が開成されて
制御線Ｌに電源Ｅが印加されないようになつている。な
おトランジスタＴ１およびＦＥＴＴ２はパルス的に導通
し、リレーＹ，Ｚはパルス的に駆動されることになるが
、交番パルスの周波数を適当に設定すればチヤタリング
を起こすことはない。またトランジスタＴ１よびＦＥＴ
Ｔ２の入力に時定数回路を挿入しても良いことはいうま
でもない。本発明は上述のように構成されており、防排
煙制御装置の防災設備の制御線をダイオードで終端する
とともに、制御線に抵抗を介して交番パルス電圧を印加
し、短絡検出回路および断線検出回路により交番パルス
電圧印加点のパルス電圧の変化を検出して制御線の短絡
および断線を検出するようになつており、従つて、制御
線を終端しているダイオードによつて交番パルス電圧は
整流されて印加点に脈動パルス電圧が現れた場合は制御
線は正常であり、また、脈動パルス電圧が得られなくな
つたときは、制御線が短絡していることが判定でき、さ
らに、交番パルス電圧が印加点に現れると制御線が断線
していることが判定でき、このように、脈動パルス電圧
が現れる場合、交番パルス電圧が現れる場合及び現れな
い場合といつたデジタル的に３つの状態を判定できる。If there is no disconnection or short circuit failure in the control line L, the alternating pulse voltage as shown in Figure 3a applied to point A will be half-wave rectified by the diode D that terminates the control line L.
The voltage at the application point A becomes a pulsating pulse voltage as shown in FIG. 1 and y2 are opened, the short-circuit failure indicator lamp LA does not light up, and the normally closed contact X'' of the control line cutoff relay X'' is also closed. At this time, the disconnection detection circuit DB (7) FET T2 is reverse biased, FET T2 is in a slightly disconnected state, and the disconnection relay Z
is not driven, the normally open contacts Zl and Z2 are open, the disconnection indicator lamp LB does not light up, and the control line cutoff relay As shown in FIG. 3d, the pulsating pulse voltage is no longer applied to the application point A of , the transistor T1 becomes temporarily disconnected, and the short-circuit relay Y returns to normally closed contact, ?1
.
Therefore, because one control line is short-circuited, the common control line Lc
Fuse F inserted into the circuit will not blow and all control lines will become unusable. Furthermore, when a disconnection fault occurs in the control line L, an alternating pulse voltage as shown in FIG.
is driven and the normally open contacts Zl and Z2 are closed, which lights up the disconnection indicator lamp LB. At the same time, the control line cutoff relay X'' is driven, so the normally closed contact X'' is opened and the control line L is connected. Power supply E is not applied. Although the transistors T1 and FET T2 are turned on in a pulsed manner and the relays Y and Z are driven in a pulsed manner, chattering does not occur if the frequency of the alternating pulses is appropriately set. Also transistor T1 and FET
It goes without saying that a time constant circuit may be inserted into the input of T2. The present invention is configured as described above, and terminates the control line of the disaster prevention equipment of the smoke prevention and exhaust control device with a diode, and applies an alternating pulse voltage to the control line via a resistor, thereby creating a short circuit detection circuit and a disconnection detection circuit. The circuit detects changes in the pulse voltage at the point where the alternating pulse voltage is applied to detect short circuits and disconnections in the control line. Therefore, the alternating pulse voltage is rectified by the diode terminating the control line. If a pulsating pulse voltage appears at the applied point, the control line is normal; if the pulsating pulse voltage is no longer obtained, it can be determined that the control line is short-circuited; When voltage appears at the application point, it can be determined that the control line is disconnected, and in this way, three states can be digitally determined: when a pulsating pulse voltage appears, when an alternating pulse voltage appears, and when it does not appear. Can be judged.
ものであり、しかも、その判定がデジタル的に行なえる
ので、線路抵抗等の影響は非常に少なく、検出方法が簡
便であるという効果を奏するものであり、そのため、制
御線の断線短絡故障の有無が常時監視されていることに
なるので、防排煙制御装置の信頼性が向上するという利
点をもつているものであり、また制御線の断線短絡故障
が即時に判別できるので、故障に対応した処置を迅速に
行なうことができるという利点をもつているものである
。Moreover, since the judgment can be made digitally, the influence of line resistance etc. is extremely small and the detection method is simple. This has the advantage of improving the reliability of the smoke prevention and exhaust control system because the control line is constantly monitored.Also, disconnections and short-circuits in control lines can be immediately identified, so it is possible to take appropriate measures to deal with the failure. It has the advantage that treatment can be performed quickly.
第１図は本発明に係る防排煙装置の概略構成図、第２図
は本発明の一実施例の回路図、第３図は同上の動作説明
図である。
Ｓ１〜Ｓｎは火災検出器、Ｍ，Ｍｌ〜Ｍｎは防災設備、
Ｌ，Ｌｃ，Ｌｌ〜Ｌｎは制御線、Ｄはダイオード、Ｒ１
は抵抗、Ａ，Ａｌ〜Ａｎは交番パルス印加点、ＤＡは短
絡検出回路、ＤＢは断線検出回路である。FIG. 1 is a schematic configuration diagram of a smoke prevention device according to the present invention, FIG. 2 is a circuit diagram of an embodiment of the present invention, and FIG. 3 is an explanatory diagram of the same operation. S1 to Sn are fire detectors, M, Ml to Mn are disaster prevention equipment,
L, Lc, Ll~Ln are control lines, D is a diode, R1
are resistors, A, Al to An are alternate pulse application points, DA is a short circuit detection circuit, and DB is a disconnection detection circuit.
Claims (1)
防災設備を制御する防排煙制御装置において、上記各防
災設備の制御線をダイオードで終端し、制御線に電流制
限抵抗を介して交番パルス電圧を印加し、上記印加点に
脈動パルス電圧が得られなくなつたとき動作する短絡検
出回路と上記印加点に交番パルス電圧が現れたとき動作
する断線検出回路とを備えた防排煙制御装置の断線短絡
検出回路。1. In a smoke prevention and exhaust control device that controls disaster prevention equipment such as multiple fire doors and smoke exhaust vents through the operation of a fire detector, the control lines for each of the disaster prevention equipment mentioned above are terminated with diodes, and the control lines are connected through current limiting resistors. and a short-circuit detection circuit that operates when an alternating pulse voltage is applied to the application point and a pulsating pulse voltage is no longer obtained at the application point, and a disconnection detection circuit that operates when an alternating pulse voltage appears at the application point. Open/short circuit detection circuit for smoke control equipment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP54094436A JPS6057023B2 (en) | 1979-07-25 | 1979-07-25 | Disconnection/short circuit detection circuit for smoke prevention control equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP54094436A JPS6057023B2 (en) | 1979-07-25 | 1979-07-25 | Disconnection/short circuit detection circuit for smoke prevention control equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5622970A JPS5622970A (en) | 1981-03-04 |
| JPS6057023B2 true JPS6057023B2 (en) | 1985-12-12 |
Family
ID=14110194
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP54094436A Expired JPS6057023B2 (en) | 1979-07-25 | 1979-07-25 | Disconnection/short circuit detection circuit for smoke prevention control equipment |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6057023B2 (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6223030U (en) * | 1985-07-26 | 1987-02-12 | ||
| WO2018181449A1 (en) | 2017-03-31 | 2018-10-04 | Ｊｆｅスチール株式会社 | Steel sheet, production method therefor, bottle cap, and drd can |
| WO2019026738A1 (en) | 2017-07-31 | 2019-02-07 | Ｊｆｅスチール株式会社 | Steel sheet for crown cap, crown cap and method for producing steel sheet for crown cap |
| WO2019026739A1 (en) | 2017-07-31 | 2019-02-07 | Ｊｆｅスチール株式会社 | Steel sheet for crown cap, crown cap, and method for manufacturing steel sheet for crown cap |
| KR20190129986A (en) | 2017-03-31 | 2019-11-20 | 제이에프이 스틸 가부시키가이샤 | Steel plate and its manufacturing method and crown and DRD can |
| KR20190133744A (en) | 2017-03-31 | 2019-12-03 | 제이에프이 스틸 가부시키가이샤 | Steel plate and its manufacturing method and crown and DRD can |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60194150A (en) * | 1984-03-10 | 1985-10-02 | 株式会社豊田自動織機製作所 | Wefting guide apparatus in fluid jet type loom |
| DE4342586A1 (en) * | 1993-12-14 | 1995-06-22 | Bosch Gmbh Robert | Display device for electrical control devices |
| DE102018130575A1 (en) * | 2018-11-30 | 2020-06-04 | Valeo Siemens Eautomotive Germany Gmbh | Monitoring circuit for an interlock system, interlock system, arrangement with an interlock system and a functional unit, and method for operating an interlock system |
-
1979
- 1979-07-25 JP JP54094436A patent/JPS6057023B2/en not_active Expired
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6223030U (en) * | 1985-07-26 | 1987-02-12 | ||
| WO2018181449A1 (en) | 2017-03-31 | 2018-10-04 | Ｊｆｅスチール株式会社 | Steel sheet, production method therefor, bottle cap, and drd can |
| KR20190127827A (en) | 2017-03-31 | 2019-11-13 | 제이에프이 스틸 가부시키가이샤 | Steel plate and its manufacturing method and crown and DRD can |
| KR20190129986A (en) | 2017-03-31 | 2019-11-20 | 제이에프이 스틸 가부시키가이샤 | Steel plate and its manufacturing method and crown and DRD can |
| KR20190133744A (en) | 2017-03-31 | 2019-12-03 | 제이에프이 스틸 가부시키가이샤 | Steel plate and its manufacturing method and crown and DRD can |
| WO2019026738A1 (en) | 2017-07-31 | 2019-02-07 | Ｊｆｅスチール株式会社 | Steel sheet for crown cap, crown cap and method for producing steel sheet for crown cap |
| WO2019026739A1 (en) | 2017-07-31 | 2019-02-07 | Ｊｆｅスチール株式会社 | Steel sheet for crown cap, crown cap, and method for manufacturing steel sheet for crown cap |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5622970A (en) | 1981-03-04 |
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