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JPS6216911B2 - - Google Patents

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Publication number
JPS6216911B2
JPS6216911B2JP21408381AJP21408381AJPS6216911B2JP S6216911 B2JPS6216911 B2JP S6216911B2JP 21408381 AJP21408381 AJP 21408381AJP 21408381 AJP21408381 AJP 21408381AJP S6216911 B2JPS6216911 B2JP S6216911B2
Authority
JP
Japan
Prior art keywords
signal
abnormality
circuit
output
detecting
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
Application number
JP21408381A
Other languages
Japanese (ja)
Other versions
JPS58109373A (en
Inventor
Hiroshi Ko
Junichi Hirota
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Fujitec Co Ltd
Original Assignee
Fujitec Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Fujitec Co LtdfiledCriticalFujitec Co Ltd
Priority to JP21408381ApriorityCriticalpatent/JPS58109373A/en
Publication of JPS58109373ApublicationCriticalpatent/JPS58109373A/en
Publication of JPS6216911B2publicationCriticalpatent/JPS6216911B2/ja
Grantedlegal-statusCriticalCurrent

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Description

Translated fromJapanese

【発明の詳細な説明】 この発明はエレベータかご内の異常検出装置に
関するもので、特に暴力行為の発生時や火災の発
生時等の異常時に有効な装置を提供するものであ
る。
DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an abnormality detection device in an elevator car, and provides a device that is particularly effective when an abnormality occurs such as when a violent act occurs or a fire occurs.

エレベータかご内異常検出装置として有効なも
のに、例えば特願昭55−178524「エレベータかご
内異常検出装置」や特願昭56−10997「状況検出
装置」などがある。
Examples of effective elevator car abnormality detection devices include Japanese Patent Application No. 55-178524 ``Elevator Car Abnormality Detection Device'' and Japanese Patent Application No. 56-10997 ``Situation Detection Device.''

これらは空間フイルタ、或いは空間フイルタの
原理を利用して輝度空間分布状態の変化を検出
し、その変化の度合が所定値を超えると異常発生
とみなし、エレベータを最寄階へ停止させたり、
警報を発したりして乗客の安全を図るようにした
ものである。しかしこれらは輝度空間分布を電気
信号に変換し、この電気信号の周波数や振幅レベ
ルが所定値を超えると異常発生とみなすものであ
るから、さまざまな異常の検出はできてもどのよ
うな異常かまでは判別できず、従つて異常かそう
でないかの判別は択一的なものであり、その結
果、管理人に通報する必要のない状態でも通報し
てしまつたり、或いは必要のない場合でも最寄階
に急停止したりして、運転効率を悪化させるだけ
でなく、却つて乗客の不信感を招く恐れがある。
These detect changes in the brightness spatial distribution state using a spatial filter or the principle of a spatial filter, and when the degree of change exceeds a predetermined value, it is considered that an abnormality has occurred, and the elevator is stopped at the nearest floor.
It is designed to ensure the safety of passengers by issuing warnings. However, these methods convert the luminance spatial distribution into an electrical signal, and if the frequency or amplitude level of this electrical signal exceeds a predetermined value, it is considered an abnormality, so even if various abnormalities can be detected, it is difficult to determine what kind of abnormality. Therefore, the determination of whether something is abnormal or not is only an option, and as a result, people end up reporting things to the administrator even when there is no need to do so, or even when there is no need to do so. Not only will the train suddenly stop at the nearest floor, which will not only reduce operational efficiency, but it will also create a sense of distrust among passengers.

本発明はこうした点に鑑みなされたもので、輝
度空間分布を変化を更に詳しく判定して異常の種
類、程度を知り、それに応じて最も適切な処置を
選択することにより、エレベータの無駄な動きを
防止すると共に、乗客に不信感を与えることなく
より一層精度の高い異常検出装置を提供しようと
するものである。
The present invention has been developed in view of these points, and by determining the change in luminance spatial distribution in more detail to know the type and degree of abnormality, and selecting the most appropriate treatment accordingly, wasteful movement of the elevator can be avoided. The purpose of the present invention is to provide a highly accurate abnormality detection device that prevents the occurrence of such abnormalities and does not give passengers a sense of distrust.

以下本発明を図面により説明する。 The present invention will be explained below with reference to the drawings.

第1図〜第2図は本発明の一実施例を示すブロ
ツク図である。図中、1はエレベータかご内の輝
度空間分布を検出する装置で、1aはその出力信
号である。この輝度空間分布を検出する装置1は
例えば広位体角プリズム2、レンズ3、光電素子
4等から構成されるが、その詳細については前述
の特願昭55−178524等に説明されているのでここ
では説明を省略する。5は交流増幅器で、その出
力信号5aは直流成分が除去され、広位体角プリ
ズム2の視野内で物体が動ければそれに応じた信
号として得られる。6は直流増幅器で、その出力
信号6aは広位体角プリズム2の視野内の照度に
応じた電圧が得られる。7は不要は信号成分を取
り除く帯域フイルタ、8は照度に応じた信号6a
により増幅度を変化し、その出力信号8aを照度
の変化に関係なくほぼ一定に保つ感度補正器であ
る。9は信号6a及び8aによりかご内の異常の
種類と程度を知りそれに応じた信号を出力する異
常判定装置、10は信号8aの周波数、振幅、変
化率等を検出するために信号8aを特徴信号10
aとして出力する特徴検出器で、コンパレータ、
微分回路、波形整形器からなる。11は特徴信号
10aよりかご内の人や物の動きの程度を判別す
る動き判別器で、動きが軽度の場合は信号11a
を、中程度の場合は信号11bを、大きな場合は
信号11cを出力する。なお動きの程度の判別は
特徴信号10aの周波数を検出することにより容
易に行なうことができる。12は特徴信号10a
より刃物を検出する刃物判別器であり、刃物検出
信号の持続時間が短かい場合信号12aを、中程
度の場合12bを、長い場合信号12cを出力す
る。13は特徴信号10aより炎を検出する炎判
別器で、炎が小さい場合は信号13aを、大きい
場合は信号13cを出力する。14は信号6a及
び特徴信号10aより煙を判別する煙判別器であ
り、少量の煙を検出した場合は信号14aを、大
量の場合は信号14cを、またかご内の照度が異
常に低くなつたような場合には信号14dを出力
する。なお刃物判別器12、炎判別器13、煙判
別器14の詳細については後述する。
1 and 2 are block diagrams showing one embodiment of the present invention. In the figure, 1 is a device for detecting the spatial distribution of luminance within an elevator car, and 1a is its output signal. The device 1 for detecting this luminance spatial distribution is composed of, for example, a wide-angle prism 2, a lens 3, a photoelectric element 4, etc., and its details are explained in the aforementioned Japanese Patent Application No. 178524-1983. The explanation will be omitted here. Reference numeral 5 designates an AC amplifier from which a DC component is removed from the output signal 5a, and a signal corresponding to the movement of an object within the field of view of the wide angle prism 2 is obtained. Reference numeral 6 denotes a DC amplifier, and its output signal 6a is a voltage corresponding to the illuminance within the field of view of the wide angle prism 2. 7 is a bandpass filter that removes unnecessary signal components, and 8 is a signal 6a depending on the illuminance.
This is a sensitivity corrector that changes the amplification degree and keeps the output signal 8a almost constant regardless of changes in illuminance. Reference numeral 9 denotes an abnormality determination device that detects the type and degree of abnormality in the car using signals 6a and 8a and outputs a corresponding signal. Reference numeral 10 denotes a characteristic signal that uses signal 8a to detect the frequency, amplitude, rate of change, etc. of signal 8a. 10
A feature detector outputs as a, a comparator,
Consists of a differentiation circuit and a waveform shaper. Reference numeral 11 denotes a motion discriminator that determines the degree of movement of people or objects in the car based on the characteristic signal 10a; if the movement is slight, the signal 11a is used.
If the value is medium, the signal 11b is output, and if the value is large, the signal 11c is output. Note that the degree of movement can be easily determined by detecting the frequency of the feature signal 10a. 12 is the feature signal 10a
This is a knife discriminator that detects knives more easily, and outputs a signal 12a when the duration of the knife detection signal is short, 12b when it is medium, and 12c when it is long. Reference numeral 13 denotes a flame discriminator that detects a flame from the characteristic signal 10a, and outputs a signal 13a if the flame is small, and outputs a signal 13c if the flame is large. 14 is a smoke discriminator that discriminates smoke from the signal 6a and the characteristic signal 10a, and when it detects a small amount of smoke, it outputs the signal 14a, when it detects a large amount, it outputs the signal 14c, and when the illuminance inside the car has become abnormally low. In such a case, the signal 14d is output. The details of the knife discriminator 12, flame discriminator 13, and smoke discriminator 14 will be described later.

15〜20はそれぞれORゲート、21はかご上ブ
ザー、22は乗場ベル、23は管理人室への報知
装置、24は最寄階へ停止させ一定時間戸開待機
させる最寄階停止装置、23は基準階へ直行させ
戸開休止する基準階休止装置である。
15 to 20 are OR gates, 21 is a buzzer on the car, 22 is a landing bell, 23 is a notification device for the manager's room, 24 is a nearest floor stop device that stops at the nearest floor and waits with the door open for a certain period of time, 23 is a reference floor stopping device that moves the vehicle directly to the reference floor and stops the door opening.

以上のような構成であるので、いまエレベータ
のかご内で暴力行為や火災等の異常状態が発生す
ると、かご内の輝度空間分布を検出する装置1か
らの出力信号1aは正常時とは異なつた波形とな
り、これが交流増幅器5、帯域フイルタ7、感度
補正器8を介して不要なノイズ成分が除去され、
信号8aとして異常判定装置9に入力される。一
方信号1aは直流増幅器6を通すことによりかご
内の照度に比例した電圧信号6aとして異常判定
装置9に入力される。異常判定装置9内では、特
徴検出器10により信号8aを特徴信号10aと
してその周波数、振幅に応じたパルス信号に変換
し、これと照度に応じた電圧信号6aとによりか
ご内の異常の種類と程度を知り、それに応じた信
号を出力する。そしてその異常の種類と程度によ
りそれに対して最も適切な処置を選択し乗客の安
全を図る。例えばかご内で人や人体の一部の動き
が通常より速くなつた場合にはこれが動き判別器
11で検出され、動きが軽度の場合は信号11a
が出力されるが、この場合は必ずしも暴力行為が
発生したとは限らないため、ORゲート15を介
してカゴ上ブザー21を作動させ、かご内の乗客
への警告のみに留める。しかし動きが中程度にな
ると信号11bが出力され、この場合には暴力行
為やその他の異常の発生している可能性が強いた
め、ORゲート16及びORゲート18を介し、乗
場ベル22を作動させると共に最寄階停止装置2
4により最寄階へ停止し一定時間戸開待機する。
また更に動きが激しい場合には信号11cが出力
され、この場合には重大な異常事態の発生が考え
られるので、ORゲート17,19,20を介
し、乗場ベル22を作動させ、基準階休止装置2
5によりかごを基準階に直行させ休止させると共
に管理人室への報知装置23を作動させ、管理人
に非常事態であることを連絡する。同様にしてか
ご内で刃物や金属片が取り出された場合は刃物判
別器12により検出され、火災が発生した場合に
は炎判別器13或いは煙判別器14により判別さ
れ、上記と同様その異常の種類と程度により適切
な処理が選択される。またかご内の照度が異常に
低下したような場合にはこれが煙判別器14で判
別され信号14dが出力されるが、この場合は球
切れ等、照明装置の故障が考えられるのでORゲ
ート19及び20を介して管理人室への報知装置
23と基準階戸開休止装置25を作動させ、管理
人に連絡すると共に基準階で運転を休止させる。
With the above configuration, if an abnormal situation such as a violent act or a fire occurs in an elevator car, the output signal 1a from the device 1 that detects the spatial distribution of brightness inside the car will be different from that in normal times. This becomes a waveform, and unnecessary noise components are removed through an AC amplifier 5, a band filter 7, and a sensitivity corrector 8.
The signal is input to the abnormality determination device 9 as a signal 8a. On the other hand, the signal 1a passes through a DC amplifier 6 and is input to an abnormality determining device 9 as a voltage signal 6a proportional to the illuminance inside the car. In the abnormality determination device 9, a characteristic detector 10 converts the signal 8a into a pulse signal according to its frequency and amplitude as a characteristic signal 10a, and uses this and a voltage signal 6a according to the illuminance to determine the type of abnormality in the car. It knows the degree and outputs a signal accordingly. Depending on the type and severity of the abnormality, the most appropriate treatment is selected to ensure passenger safety. For example, if a person or a part of the human body moves faster than normal in the car, this is detected by the movement discriminator 11, and if the movement is slight, the signal 11a is detected.
is output, but in this case, it does not necessarily mean that a violent act has occurred, so the on-car buzzer 21 is activated via the OR gate 15 to only warn the passengers in the car. However, when the movement becomes moderate, the signal 11b is output, and in this case, there is a strong possibility that a violent act or other abnormality has occurred, so the hall bell 22 is activated via the OR gate 16 and OR gate 18. Along with the nearest floor stopping device 2
4, it will stop at the nearest floor and wait with the door open for a certain period of time.
If the movement is even more intense, the signal 11c is output. In this case, a serious abnormal situation is likely to occur, so the hall bell 22 is activated via the OR gates 17, 19, and 20, and the standard floor suspension device is activated. 2
5, the car is brought straight to the standard floor and stopped, and the notification device 23 to the manager's room is activated to notify the manager of the emergency situation. Similarly, if a knife or metal piece is taken out of the basket, it will be detected by the knife detector 12, and if a fire occurs, it will be detected by the flame detector 13 or smoke detector 14, and the abnormality will be detected as described above. Appropriate treatment is selected depending on the type and severity. If the illuminance inside the car is abnormally low, this is detected by the smoke discriminator 14 and a signal 14d is output, but in this case, the OR gate 19 and 20, a notification device 23 to the manager's room and a reference floor door opening/stopping device 25 are activated to contact the manager and stop operation on the reference floor.

第3図は刃物判別器12の一実施例の詳細を示
すブロツク図である。刃物の検出は光の反射ムラ
による光強度の急激な増大をとらえるもので、そ
の程度により信号12a〜12cを出力する。第
3図において31は周波数検出回路で信号10a
が所定値以上の周波数であれば31aなる信号を
出力する。35,36はそれぞれレベルコンパレ
ータであるが35は36よりレベルを高く設定し
ている。35aはインバータ、37はANDゲー
トであり、従つてその出力37aは信号10aが
あるレベルの範囲内にある時発せられる。38は
ANDゲートであり、その出力12aは信号10
aの周波数が所定値以上で、且つあるレベルの範
囲内であれば発せられる。このレベルの範囲を適
当に選べば人の動きや炎等とは区別ができ刃物を
取り出したことの検出が可能となる。32は微分
比較器で信号10aを整流して微分し(信号波形
の包絡線の微分)、波形の微分値があるレベル以
上になると信号32aを出力する。33,34は
それぞれの時間のコンパレータで、例えばコンパ
レータ33を2秒に、コンパレータ34を5秒に
設定すると、信号10aの持続時間が2秒になる
と信号33aを出力し、持続時間が5秒になると
信号34aが出力される。39,40はそれぞれ
ANDゲートである。従つてかご内で刃物を取り
出したことが検出されると信号12aが出力さ
れ、更にその状態が続くと信号12b,12cが
出力されることになる。
FIG. 3 is a block diagram showing details of one embodiment of the knife discriminator 12. Detection of a knife detects a sudden increase in light intensity due to uneven reflection of light, and outputs signals 12a to 12c depending on the degree of the increase. In Fig. 3, 31 is a frequency detection circuit and the signal 10a is
If the frequency is higher than a predetermined value, a signal 31a is output. 35 and 36 are level comparators, and the level of 35 is set higher than that of 36. 35a is an inverter and 37 is an AND gate, so that its output 37a is issued when signal 10a is within a certain level range. 38 is
is an AND gate, whose output 12a is the signal 10
It is emitted if the frequency of a is above a predetermined value and within a certain level range. If the range of this level is selected appropriately, it will be possible to distinguish it from human movements, flames, etc., and it will be possible to detect that a knife has been taken out. A differential comparator 32 rectifies and differentiates the signal 10a (differentiation of the envelope of the signal waveform), and outputs a signal 32a when the differential value of the waveform exceeds a certain level. 33 and 34 are respective time comparators. For example, if the comparator 33 is set to 2 seconds and the comparator 34 is set to 5 seconds, the signal 33a is output when the duration of the signal 10a becomes 2 seconds, and the duration becomes 5 seconds. Then, a signal 34a is output. 39 and 40 respectively
It is an AND gate. Therefore, when it is detected that a cutlery has been removed from the basket, a signal 12a is output, and if this condition continues, signals 12b and 12c are output.

第4図は炎判別器13の一実施例の詳細を示す
ブロツク図である。炎の検出は信号10aの出力
波形の周波数と振幅レベルよりとらえることがで
きる。第4図において41は周波数検出回路で、
所定値以上の周波数であれば信号41aを出力す
る。42は振幅のレベルコンパレータで高い値に
設定されており、この設定値を超えると信号42
aを発する。45はANDゲートで信号41a及
び42aが共に入力された時信号13aを出力し
炎の検出を知らせる。43は周波数検出回路で、
前述の周波数検出回路41より高い値に設定され
ている。44は積分器を内蔵した時間のコンパレ
ータである。すなわち火災が大きくなると激しい
熱気流の移動が伴なうのでこれが周波数検出回路
43で検出され、これが所定時間以上持続すると
時間のコンパレータ44で検出され、信号13c
を出力して火災が大きくなつたことを知らせるこ
とができる。
FIG. 4 is a block diagram showing details of one embodiment of the flame discriminator 13. Flame detection can be determined from the frequency and amplitude level of the output waveform of the signal 10a. In FIG. 4, 41 is a frequency detection circuit,
If the frequency is above a predetermined value, a signal 41a is output. 42 is an amplitude level comparator set to a high value, and when this setting value is exceeded, the signal 42
emits a. 45 is an AND gate which outputs a signal 13a when both signals 41a and 42a are input to notify the detection of flame. 43 is a frequency detection circuit,
It is set to a higher value than the frequency detection circuit 41 described above. 44 is a time comparator with a built-in integrator. That is, as the fire grows larger, the movement of hot air is accompanied by intense movement, which is detected by the frequency detection circuit 43. If this continues for a predetermined time or more, it is detected by the time comparator 44, and the signal 13c is detected.
can be output to notify that the fire has grown.

第5図は煙検出器14の一実施例の詳細を示す
ブロツク図である。煙の検出も炎と同時に周波数
及び振幅の検出により行なう。第5図において5
1は周波数検出回路で信号10aの周波数が所定
値以上のとき信号51aを発する。
FIG. 5 is a block diagram showing details of one embodiment of the smoke detector 14. Smoke is detected at the same time as flame by frequency and amplitude detection. In Figure 5, 5
1 is a frequency detection circuit which emits a signal 51a when the frequency of the signal 10a is equal to or higher than a predetermined value.

52は照度コンパレータで信号6aの振幅が所
定値以下になつた時信号52aを出力する。
52 is an illuminance comparator which outputs a signal 52a when the amplitude of the signal 6a becomes less than a predetermined value.

55はANDゲート、53は積分器を含む時間
のコンパレータで信号14aが所定時間以上持続
すると信号14cを出力する。54は照度のコン
パレータで前述の52より低い値に設定されてい
る。従つてかご内で煙が発生すると、この煙の移
動とかご内の照度の低下とにより、これらが周波
数検出回路51と照度コンパレータ52とで検出
され、ANDゲート55を介して信号14aを出
力し煙の発生を知らせることができる。またこの
状態が所定時間以上持続すると信号14cを出力
し、更に危険状態になつたことを知らせることが
できる。更にまた球切れ等により照明装置が故障
したような場合には、照度が一層低下するので照
度コンパレータ54によりこれを検出し信号14
dを出力してこれを知らせることができる。
55 is an AND gate, and 53 is a time comparator including an integrator, which outputs a signal 14c when the signal 14a continues for a predetermined time or longer. Reference numeral 54 is an illuminance comparator which is set to a lower value than the above-mentioned 52. Therefore, when smoke is generated inside the car, the movement of the smoke and the decrease in illuminance inside the car are detected by the frequency detection circuit 51 and the illuminance comparator 52, and the signal 14a is outputted via the AND gate 55. It can alert you to the occurrence of smoke. Further, if this state continues for a predetermined period of time or more, a signal 14c is outputted to notify that the state has become dangerous. Furthermore, if the lighting device malfunctions due to bulb burnout, etc., the illuminance will further decrease, and this will be detected by the illuminance comparator 54 and the signal 14 will be detected.
This can be notified by outputting d.

以上のように本発明によればエレベータかご内
の異常の種類と程度を知るだけでなく、その種類
や程度に応じて適切な処置をとることができるの
で、誤動作等によるエレベータの無駄な動きを防
止し、かつ信頼性の高いエレベータかご内異常検
出装置を提供することができ、乗客の安全確保に
より一層の大きな効果を期待することができる。
As described above, according to the present invention, it is possible not only to know the type and degree of abnormality in the elevator car, but also to take appropriate measures according to the type and degree, thereby preventing unnecessary movement of the elevator due to malfunction etc. It is possible to provide an elevator car abnormality detection device that prevents and has high reliability, and can be expected to have even greater effects in ensuring passenger safety.

なお上記の説明において、異常を判別する回路
や、それに応じて行なわれる適切な処理などは上
記の実施例に限定されないことは言うまでもな
く、例えば警報装置として視覚に訴える表示装置
や音声案内装置を利用するようにしてもよい。ま
た輝度空間分布を検出する装置も広立体角プリズ
ムを利用するものに限られるものでないことは勿
論である。
In the above description, it goes without saying that the circuit for determining an abnormality and the appropriate processing performed in response to the abnormality are not limited to the above embodiments. You may also do so. Furthermore, it goes without saying that the device for detecting the luminance spatial distribution is not limited to one that uses a wide solid angle prism.

【図面の簡単な説明】[Brief explanation of the drawing]

第1図及び第2図は本発明によるエレベータか
ご内異常検出装置の一実施例を示すブロツク図、
第3図は刃物判別器の一実施例を示すブロツク
図、第4図は炎判別器の一実施例を示すブロツク
図、第5図は煙判別器の一実施例を示すブロツク
図である。 1……輝度空間分布を検出する装置、5……交
流増幅器、6……直流増幅器、9……異常判定装
置、11……動き判別器、12……刃物判別器、
13……炎判別器、14……煙判別器、23……
管理人室への報知装置、24……最寄階停止装
置、25……基準階戸開休止装置。
1 and 2 are block diagrams showing an embodiment of an abnormality detection device in an elevator car according to the present invention,
FIG. 3 is a block diagram showing an embodiment of a knife discriminator, FIG. 4 is a block diagram showing an embodiment of a flame discriminator, and FIG. 5 is a block diagram showing an embodiment of a smoke discriminator. DESCRIPTION OF SYMBOLS 1... Device for detecting brightness spatial distribution, 5... AC amplifier, 6... DC amplifier, 9... Abnormality determination device, 11... Movement discriminator, 12... Blade discriminator,
13...Flame discriminator, 14...Smoke discriminator, 23...
Notification device for the manager's room, 24...nearest floor stop device, 25...standard floor door opening/stop device.

Claims (1)

Translated fromJapanese
【特許請求の範囲】[Claims]1 光学系と光電変換素子からなり、空間フイル
タを構成することにより或いは空間フイルタの原
理により、エレベータかご内の輝度空間分布の変
化を電気信号に変換して出力する装置と、コンパ
レータ、微分回路、波形整形器からなり前記電気
信号を特徴信号として出力する特徴検出器、前記
特徴信号の周波数の程度を検出する回路、前記特
徴信号の振幅レベルの程度を検出する回路、前記
特徴信号の持続時間の程度を検出する回路で構成
され、前記特徴信号から異常の内容と程度に応じ
た信号を出力する異常判定装置とを備えたことを
特徴とするエレベータかご内異常検出装置。
1. A device consisting of an optical system and a photoelectric conversion element, which converts changes in the spatial distribution of luminance in an elevator car into an electrical signal by configuring a spatial filter or according to the principle of a spatial filter, and outputs the electrical signal, a comparator, a differentiating circuit, a feature detector comprising a waveform shaper and outputting the electrical signal as a characteristic signal; a circuit for detecting the frequency of the characteristic signal; a circuit for detecting the amplitude level of the characteristic signal; and a circuit for detecting the amplitude level of the characteristic signal; An abnormality detection device in an elevator car, comprising: an abnormality determination device configured with a circuit for detecting the degree of abnormality, and outputting a signal according to the content and degree of the abnormality from the characteristic signal.
JP21408381A1981-12-241981-12-24Detector for abnormality in elevator cageGrantedJPS58109373A (en)

Priority Applications (1)

Application NumberPriority DateFiling DateTitle
JP21408381AJPS58109373A (en)1981-12-241981-12-24Detector for abnormality in elevator cage

Applications Claiming Priority (1)

Application NumberPriority DateFiling DateTitle
JP21408381AJPS58109373A (en)1981-12-241981-12-24Detector for abnormality in elevator cage

Publications (2)

Publication NumberPublication Date
JPS58109373A JPS58109373A (en)1983-06-29
JPS6216911B2true JPS6216911B2 (en)1987-04-15

Family

ID=16649953

Family Applications (1)

Application NumberTitlePriority DateFiling Date
JP21408381AGrantedJPS58109373A (en)1981-12-241981-12-24Detector for abnormality in elevator cage

Country Status (1)

CountryLink
JP (1)JPS58109373A (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication numberPriority datePublication dateAssigneeTitle
JPS6447759U (en)*1987-09-211989-03-24
US6028626A (en)1995-01-032000-02-22Arc IncorporatedAbnormality detection and surveillance system
US5666157A (en)1995-01-031997-09-09Arc IncorporatedAbnormality detection and surveillance system
KR20010075884A (en)*2000-01-212001-08-11백영문State of emergency monitoring/control apparatus and the method using by elevator
JP2007230732A (en)*2006-03-012007-09-13Hitachi Building Systems Co Ltd Elevator operation control device

Also Published As

Publication numberPublication date
JPS58109373A (en)1983-06-29

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