JP3015720B2 - Smoke detector alarm transmission level correction method - Google Patents
Smoke detector alarm transmission level correction methodInfo
- Publication number
- JP3015720B2 JP3015720B2 JP7268128A JP26812895A JP3015720B2 JP 3015720 B2 JP3015720 B2 JP 3015720B2 JP 7268128 A JP7268128 A JP 7268128A JP 26812895 A JP26812895 A JP 26812895A JP 3015720 B2 JP3015720 B2 JP 3015720B2
- Authority
- JP
- Japan
- Prior art keywords
- value
- correction
- alarm
- smoke
- smoke detector
- 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 - Fee Related
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- Fire Alarms (AREA)
- Investigating Or Analysing Materials By Optical Means (AREA)
- Fire-Detection Mechanisms (AREA)
- Alarm Systems (AREA)
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、煙感知器に所定の
煙濃度閾値に対応して設定した火災警報送信レベル、注
意表示警報送信レベル、連動送信レベル、割込送信レベ
ル等の警報送信レベルを、煙の受光信号から煙濃度の変
換特性の補正に伴って自動的に補正する煙感知器の警報
送信レベル補正方法に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an alarm transmission level such as a fire alarm transmission level, a caution display alarm transmission level, an interlocking transmission level, an interruption transmission level, etc., which is set in a smoke detector in accordance with a predetermined smoke density threshold. Is automatically corrected in accordance with the correction of the smoke density conversion characteristic from the smoke light reception signal.
【０００２】[0002]
【従来の技術】従来、火災報知設備においては、定期的
に感知器の点検を行い、感知器が正常であるか否かを点
検している。例えば、光電式（散乱光式）の煙感知器を
用いた火災報知設備においては、煙感知器のセンサ部で
火災に伴う煙の量に依存した受光量を検出して受光信号
を出力し、この受光信号を煙濃度に変換する変換式テー
ブルを受信機あるいは煙感知器自身が持っており、この
変換式を用いて煙による受光信号を煙濃度に変換して火
災を判断している。2. Description of the Related Art Conventionally, in a fire alarm system, a sensor is periodically inspected to check whether or not the sensor is normal. For example, in a fire alarm system using a photoelectric (scattered light) smoke detector, the sensor unit of the smoke detector detects the amount of received light depending on the amount of smoke accompanying a fire, and outputs a received light signal. The receiver or the smoke detector itself has a conversion formula table for converting the received light signal into smoke density, and uses this conversion formula to convert the received light signal due to smoke into smoke density to judge a fire.
【０００３】ところが、煙感知器内の検煙部、検出素子
が塵や埃などで汚れたり、経年変化が生じたりすると、
受光信号に変化が生じ、零点（煙のない定常的な状態で
の受光信号）や発報点（火災と判断する受光信号）も変
化する。その結果、零点、発報点の変化により変換式も
変化する。このため煙感知器の受光量から正確な煙濃度
が変換できず、誤報の発生につながる。[0003] However, if the smoke detector and the detection element in the smoke detector are contaminated with dust or dirt, or if they change over time,
The light receiving signal changes, and the zero point (light receiving signal in a steady state without smoke) and the alert point (light receiving signal for judging a fire) also change. As a result, the conversion formula changes according to the change of the zero point and the alert point. For this reason, accurate smoke density cannot be converted from the amount of light received by the smoke detector, leading to the generation of false alarms.
【０００４】また、煙感知器の検出信号に基づく火災判
断には、零点及び発報点に加え、発報点より低い注意表
示警報送信レベルが設定され、注意表示警報送信レベル
に達したときに注意表示警報を受信機で出すため割込信
号を送信する。この注意表示警報送信レベルは、受信機
において受光信号と煙濃度との変換式が零点とテスト用
の発報ＬＥＤを点灯させて擬似的に火災状態にした時の
受光信号（試験発報点）から算出されていることから、
注意表示警報レベルに対応した所定の煙濃度から変換式
に従って受光信号の注意表示警報送信レベルを求め、煙
感知器に送って設定している。In the fire judgment based on the detection signal of the smoke detector, a warning display alarm transmission level lower than the alarm point is set in addition to the zero point and the alarm point, and when the alarm display alarm transmission level is reached. An interrupt signal is sent to issue a warning display alarm at the receiver. This caution display alarm transmission level is the light reception signal when the conversion formula between the light reception signal and smoke density is zero in the receiver and the test report LED is turned on and a pseudo fire condition is set (test report point). Is calculated from
From the predetermined smoke density corresponding to the caution display alarm level, the caution display alarm transmission level of the received light signal is obtained according to the conversion formula, and sent to the smoke detector for setting.
【０００５】例えば発報点煙濃度が１０［％／ｍ］であ
ったとすると、注意表示警報を行う煙濃度は５［％／
ｍ］に設定され、変換式から５［％／ｍ］の煙濃度に対
応する受光信号レベルを求め、これを煙感知器に送って
注意表示警報送信レベルとして設定する。注意表示警報
送信レベルの設定を受けた煙感知器は、センサ部からの
受光信号が注意信号送信レベルに達したとき、受信機に
対し割込信号を送出して注意表示警報を行わせる。同時
に割込信号を受信した受信機は、アドレス検索コマンド
を送信して割込信号の送出を行った煙感知器のアドレス
を調べ、この感知器のポーリングで収集した検出データ
の変化をグラフィック表示する等して、火災と断定する
までの推移を表示する。For example, assuming that the smoke density at the alarm point is 10% / m, the smoke density at which a warning display alarm is issued is 5% / m.
m], a light receiving signal level corresponding to a smoke density of 5 [% / m] is obtained from the conversion formula, and this is sent to a smoke detector and set as a caution display alarm transmission level. The smoke detector that has received the caution display alarm transmission level setting sends an interrupt signal to the receiver when the light reception signal from the sensor unit reaches the caution signal transmission level, to perform a caution display alarm. At the same time, the receiver receiving the interrupt signal transmits an address search command to check the address of the smoke sensor that has transmitted the interrupt signal, and graphically displays a change in detection data collected by polling of this sensor. For example, the transition until a fire is concluded is displayed.
【０００６】このような煙感知器に設定される注意表示
警報送信レベルについても、センサ部の汚れ等によって
受光信号が多めになると、本来予定した注意表示警報送
信レベルの煙濃度に達していなくとも、受信信号のレベ
ルが高くなるため、割込信号の送出が頻繁に行われるこ
とが考えられ、誤報が多くなる。このため、定期的（１
日ないし１週間ごと）に零点受光信号と、テスト用の発
報ＬＥＤを点灯させて擬似的に火災状態にした時の試験
発報点受光信号を測定し、この２点を結ぶ直線から受光
信号と煙濃度の変換式を新たに作成し、さらに新たに作
成した変換式から煙濃度５［％／ｍ］の注意表示警報送
信レベルを算出して煙感知器に再設定している。[0006] With regard to the caution display alarm transmission level set for such a smoke detector, if the number of light reception signals becomes large due to contamination of the sensor section, etc., even if the smoke density does not reach the originally intended caution display alarm transmission level. Since the level of the received signal increases, it is considered that the interrupt signal is frequently transmitted, and the number of false reports increases. Therefore, regular (1
(Every day or once a week), the zero point light receiving signal and the light emitting signal for the test are measured when the fire LED is turned on and the test emitting LED is turned on, and the light receiving signal is calculated from the straight line connecting these two points. And a smoke density conversion formula are newly created, and a warning display alarm transmission level of a smoke density of 5 [% / m] is calculated from the newly created conversion formula and reset to the smoke detector.
【０００７】このような注意表示警報送信レベル以外に
も、火災警報を行わせる火災警報送信レベル、防火戸等
を作動させる連動送信レベル等がある。これを総称し
て、以下、警報送信レベルと呼ぶ。In addition to the caution display alarm transmission level, there are a fire alarm transmission level for performing a fire alarm, an interlocking transmission level for operating a fire door, and the like. This is hereinafter generally referred to as an alarm transmission level.
【０００８】[0008]
【発明が解決しようとする課題】ところで、煙感知器の
誤報を防ぐためには、点検により絶えず正確な変換式を
求めていくことが望ましいが、点検の周期を短くする
と、点検の度に試験発報点の測定のためにテスト用のＬ
ＥＤを点灯させる必要があり、未警戒状態になる期間が
多くなる。さらに、テストＬＥＤを点灯させるので消費
電力も増加する。By the way, in order to prevent false alarms from the smoke detector, it is desirable to constantly obtain an accurate conversion formula by inspection. However, if the inspection cycle is shortened, a test is required every time an inspection is performed. L for test to measure report points
It is necessary to light the ED, and the period during which the user is in the non-alert state increases. Further, since the test LED is turned on, power consumption also increases.
【０００９】逆に、点検する周期を長くすると、煙感知
器の障害検出が遅れ、また変換式が長期間補正されない
ことで、正確な煙濃度による火災判断が保証されない恐
れもある。更に、零点の測定時に、一時的に埃や煙が入
っていた場合にその値を零点としてしまい、変換式に誤
差が含まれる恐れもあった。Conversely, if the inspection cycle is lengthened, the detection of a fault in the smoke detector is delayed, and the conversion formula is not corrected for a long period of time, so that a fire judgment based on accurate smoke density may not be guaranteed. Furthermore, when dust or smoke is temporarily contained in the measurement of the zero point, the value is regarded as the zero point, and there is a possibility that an error may be included in the conversion formula.
【００１０】このように受光信号と煙濃度との変換式の
作成更新が点検周期に依存する問題は、そのまま感知器
に設定している火災警報送信レベル、注意表示警報送信
レベル、連動送信レベル等の警報送信レベルについて同
様な問題を生じている。本発明は、このような背景に基
づいてなされたものであり、その目的は、未警戒の状態
を増やすことなく、より正確に煙感知器の設定している
警報送信レベルを補正することができる煙感知器の警報
送信レベル補正方法を提供することにある。As described above, the problem that the conversion formula of the light receiving signal and the smoke density depends on the inspection cycle depends on the fire alarm transmission level, the caution display alarm transmission level, the interlocking transmission level, etc., which are set in the sensor as it is. Have a similar problem with respect to the alarm transmission level. The present invention has been made based on such a background, and an object of the present invention is to correct the alarm transmission level set by the smoke detector more accurately without increasing the number of unwatched states. An object of the present invention is to provide a method for correcting an alarm transmission level of a smoke detector.
【００１１】[0011]
【課題を解決するための手段】この目的を達成するた
め、本発明は次のように構成する。まず本発明は、監視
区域の火災に伴う煙濃度に応じた受光信号を煙感知器で
検出して受信機に送り、受信機で受光信号と煙濃度間の
変換特性に従って受光信号から煙濃度を求めて火災を判
断し、更に、煙感知器に所定の煙濃度閾値に対応した警
報送信レベルを予め設定し、受光信号が警報送信レベル
を越えたときに受信機に警報信号を送信する火災報知装
置を対象とする。In order to achieve this object, the present invention is configured as follows. First, according to the present invention, a smoke detector detects a light reception signal corresponding to a smoke density due to a fire in a monitored area and sends it to a receiver, and the receiver calculates a smoke density from the light reception signal according to a conversion characteristic between the light reception signal and the smoke density. Fire alarm that determines a fire, sets an alarm transmission level corresponding to a predetermined smoke density threshold in the smoke detector in advance, and transmits an alarm signal to the receiver when the received light signal exceeds the alarm transmission level. Targets equipment.
【００１２】このような火災報知設備を対象とした本発
明の煙感知器の警報送信レベル補正方法によれば、火
災受信機により所定の零点補正周期毎に前記煙感知器の
零点値を測定し、それまで測定した零点値と新たに測定
した零点値との差分を求め、差分が補正限界内であれ
ば、零点値を新たに得られた値に補正すると共に試験発
報点値を差分だけ補正し、差分が補正限界値を超えてい
れば、零点値を現在値に補正限界幅を付加した値に補正
すると共に試験発報点値も補正限界幅を付加した値に補
正し、加えて、変換特性を、補正後の零点値と試験発
報点値を結んだ変換特性に補正し、更に、煙感知器の警
報送信レベルを差分だけ補正した後に煙感知器に送って
再設定する、ことを特徴とする。According to the method for correcting the alarm transmission level of the smoke detector according to the present invention for such a fire alarm system, the zero point value of the smoke detector is measured by the fire receiver every predetermined zero correction period. The difference between the previously measured zero value and the newly measured zero value is calculated, and if the difference is within the correction limit, the zero value is corrected to the newly obtained value and the test notification point value is calculated by the difference only. Compensation, and the difference exceeds the compensation limit.
, The zero value is corrected to the value obtained by adding the correction limit width to the current value.
At the same time, the test report point value is also
Correction, and in addition, the conversion characteristic is corrected to a conversion characteristic obtained by connecting the corrected zero value and the test notification point value, and further, the alarm transmission level of the smoke detector is corrected by a difference and then sent to the smoke detector. And reset it.
【００１３】また零点補正周期より長い変換特性補正周
期に達する毎に、変換特性を、補正後の零点値と煙感知
器の試験発報で測定した試験発報点値を結んだ変換特性
に補正する。例えば、零点値の測定を例えば１時間ごと
の短いサイクルで測定し、測定前と測定後の零点の差分
を求め、その差分だけ試験発報点を擬似的に補正し、同
時に警報送信レベルも差分だけ擬似的に補正して煙感知
器に再設定する。そして、１日に１回という長い周期
で、煙感知器の試験発報を行って試験発報値を測定し、
補正後の零点と試験発報点から変換式を補正すること
で、擬似的な補正による誤差が解消され正しい変換式に
補正される。Each time a conversion characteristic correction period longer than the zero point correction period is reached, the conversion characteristic is corrected to a conversion characteristic obtained by connecting the corrected zero point value and the test report point value measured by the test report of the smoke detector. I do. For example, the measurement of the zero value is measured in a short cycle, for example, every hour, the difference between the zero value before and after the measurement is obtained, and the test reporting point is corrected in a pseudo manner by the difference, and at the same time, the alarm transmission level is also different. Only the pseudo correction is made and the smoke detector is reset. Then, at a long cycle of once a day, the test alarm of the smoke detector is performed and the test alarm value is measured.
By correcting the conversion equation from the corrected zero and the test alert point, the error due to the pseudo correction is eliminated, and the conversion equation is corrected to the correct one.
【００１４】また本発明の別の形態にあっては、煙感知
器自身に、変換特性を設定して零点測定に基づく零点
値、試験発報点値及び感知器自身の警報送信レベルを擬
似補正し、また試験発報で測定した試験発報点値と補正
された零点値による変換特性の補正とこれに基づく警報
送信レベルの補正を行うようにしてもよい。更に、煙感
知器に設定する警報送信レベルとしては、火災警報を行
わせる火災警報信号を送信するための火災警報送信レベ
ル、注意表示警報を行わせる注意表示警報信号を送信す
るための注意表示警報送信レベル、又は、防排煙等の機
器を連動制御させる連動信号を送信するための連動送信
レベル等がある。また感知器から受信機に対する各種の
警報信号の送信は、割込信号として送信してもよいし、
受信機からの呼出しに対する応答信号として送信しても
よい。According to another aspect of the present invention, a conversion characteristic is set in the smoke detector itself to simulate correction of a zero point value based on the zero point measurement, a test alert point value, and an alarm transmission level of the detector itself. Alternatively, the conversion characteristic may be corrected based on the test notification point value measured in the test notification and the corrected zero value, and the warning transmission level may be corrected based on the conversion characteristic. Further, as the alarm transmission level to be set in the smoke detector, a fire alarm transmission level for transmitting a fire alarm signal for performing a fire alarm, a caution display alarm for transmitting a caution display alarm signal for performing a caution display alarm There is a transmission level or an interlocking transmission level for transmitting an interlocking signal for interlocking control of devices such as smoke emission control. Also, the transmission of various alarm signals from the sensor to the receiver may be transmitted as an interrupt signal,
It may be transmitted as a response signal to a call from the receiver.
【００１５】[0015]
【発明の実施の形態】図１は本発明の煙感知器の警報送
信レベル補正方法が適用される防災監視監視のブロック
図である。図１において、受信機１からは複数系統の伝
送路８が引き出され、各系統の伝送路８には端末として
アナログ熱感知器２、アナログ煙感知器３、感知器用中
継器４、制御用中継器５が接続されている。感知器用中
継器４からは感知器回線９が引き出され、複数のオン、
オフ感知器６を接続し、終端には断線監視用の終端抵抗
６ａを接続している。更に、制御用中継器５から引き出
された回線には防火戸などの制御用機器７が接続されて
いる。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 is a block diagram of disaster prevention monitoring and monitoring to which a method for correcting an alarm transmission level of a smoke detector according to the present invention is applied. In FIG. 1, a plurality of transmission lines 8 are drawn out from a receiver 1. Each of the transmission lines 8 has an analog heat sensor 2, an analog smoke sensor 3, a sensor repeater 4, and a control relay as terminals. The vessel 5 is connected. A sensor line 9 is drawn out of the sensor repeater 4, and a plurality of ON,
The off sensor 6 is connected, and a terminal resistor 6a for disconnection monitoring is connected to the terminal. Further, a control device 7 such as a fire door is connected to a line drawn from the control repeater 5.
【００１６】１系統の伝送路８に対しては例えば最大で
１２７個の端末が接続可能であり、端末の各々には固有
のアドレスと種別情報が予め設定される。また感知器用
中継器４及び制御用中継器５からは最大４回線を引き出
すことができる。受信機１には、受信機全体を管理する
メインＭＰＵ１１、端末との間でデータ転送を行う例え
ば２台のサブＭＰＵ１２−１，１２−２、操作部１３、
表示部１４及び電源部１５が設けられている。For example, a maximum of 127 terminals can be connected to one transmission line 8, and a unique address and type information are set in advance for each terminal. Further, up to four lines can be drawn from the sensor repeater 4 and the control repeater 5. The receiver 1 includes a main MPU 11 that manages the entire receiver, two sub-MPUs 12-1 and 12-2 that perform data transfer with the terminal, an operation unit 13,
A display unit 14 and a power supply unit 15 are provided.
【００１７】メインＭＰＵ１１は受信制御部１６を有す
る。受信制御部１６は、火災受信処理に加え、所定の零
点補正周期例えば１時間に１回、サブＭＰＵ１２−１，
１２−２に零点補正要求コマンドを発行し、また所定の
試験発報点補正周期（変換特性補正周期）例えば１日に
１回、サブＭＰＵ１２−１，１２−２に変換式補正要求
コマンドを発行する。The main MPU 11 has a reception control unit 16. In addition to the fire reception process, the reception control unit 16 performs a sub-MPU 12-1,
A zero point correction request command is issued to the sub-MPUs 12-1 and 12-2 at a predetermined test report point correction cycle (conversion characteristic correction cycle), for example, once a day. I do.
【００１８】サブＭＰＵ１２−１，１２−２の各々は、
伝送制御部１７、補正処理部１８及び火災判断部１９を
有する。伝送制御部１７は、通常監視状態にあっては、
ポーリングコマンドを順次送出して各端末の情報を収集
すると共に、更に例えば１秒ごとにＡ／Ｄ変換コマンド
を送出する処理を繰り返している。Ａ／Ｄ変換コマンド
はアナログ熱感知器２及びアナログ煙感知器３のアドレ
スに依存しない共通コマンドであり、各端末はＡ／Ｄ変
換コマンドを受信すると、現在検出している熱または煙
の検出信号をＡ／Ｄ変換してメモリに保持する。メモリ
に保持された検出データは、Ａ／Ｄ変換コマンドに続く
ポーリングコマンドに含まれる自己アドレスを判別した
ときに受信機に送出される。Each of the sub-MPUs 12-1 and 12-2 includes:
It has a transmission control unit 17, a correction processing unit 18, and a fire determination unit 19. The transmission control unit 17 is in the normal monitoring state,
A polling command is sequentially transmitted to collect information of each terminal, and a process of transmitting an A / D conversion command, for example, every second is repeated. The A / D conversion command is a common command that does not depend on the addresses of the analog heat sensor 2 and the analog smoke sensor 3. When each terminal receives the A / D conversion command, the terminal detects a heat or smoke detection signal that is currently being detected. Is A / D converted and stored in the memory. The detection data held in the memory is sent to the receiver when the self-address included in the polling command following the A / D conversion command is determined.
【００１９】更にサブＭＰＵ１２−１，１２−２の各々
は試験コマンドを発行して、アナログ熱感知器２及びア
ナログ煙感知器３の動作試験を行うことができる。本発
明が対象とするアナログ煙感知器３は、散乱光式の検煙
部（センサ部）を備え、煙の濃度に応じた散乱光の光量
を受光素子で検出して受光信号を出力する。検煙部の受
光素子に対向した位置には試験用のテストＬＥＤが設け
られ、試験コマンドを受信するとテストＬＥＤを点灯
し、試験発報点となる例えば１８［％／ｍ］の煙濃度に
相当する散乱光の光量を受光素子に照射する。この試験
発報点は、感知器が受光信号Ｘから変換式Ｙ＝ａＸ＋ｂ
を使用して煙濃度Ｙの変換に使用する上での変換可能範
囲の上限値に設定されており、変換可能範囲の下限値で
ある零点と上限の試験発報点との２点を測定すること
で、より正確な変換式を得ることができる。Further, each of the sub-MPUs 12-1 and 12-2 can issue a test command to perform an operation test of the analog heat sensor 2 and the analog smoke sensor 3. The analog smoke detector 3 to which the present invention is applied has a scattered light type smoke detector (sensor), and detects a light amount of the scattered light according to the smoke density by a light receiving element and outputs a light receiving signal. A test LED for testing is provided at a position facing the light receiving element of the smoke detector, and when a test command is received, the test LED is turned on, and corresponds to a smoke density of, for example, 18 [% / m] serving as a test alert point. The light amount of the scattered light is irradiated on the light receiving element. The point at which this test was issued is that the sensor uses the conversion formula Y = aX + b
Is set to the upper limit value of the conversion range for use in the conversion of the smoke density Y, and two points are measured: the lower limit value of the conversion range and the test point at the upper limit. Thus, a more accurate conversion formula can be obtained.
【００２０】サブＭＰＵ１２−１，１２−２の火災判断
部１９は、伝送制御部１７により収集されたアナログ煙
感知器３からの検出データＸを、予め定めたＹ＝ａＸ＋
ｂの変換式に従って煙濃度Ｙに変換し、予め定めた発報
点の煙濃度以上となったときにメインＭＰＵ１１に火災
発生を通知し、受信制御部１６による火災受信処理を行
わせている。The fire determination unit 19 of the sub-MPUs 12-1 and 12-2 converts the detection data X collected by the transmission control unit 17 from the analog smoke detector 3 into a predetermined Y = aX +
The smoke density is converted into the smoke density Y according to the conversion formula of b, and when the smoke density becomes equal to or higher than the smoke density at the predetermined alarm point, the main MPU 11 is notified of the fire occurrence, and the reception control unit 16 performs the fire reception processing.
【００２１】火災判断部１９は変換式Ｙ＝ａＸ＋ｂに使
用する定数ａ，ｂをメモリに保持しており、定数ａ，ｂ
は電源投入に伴う初期化診断処理の際の零点測定及びテ
ストＬＥＤの点灯による試験発報点の測定結果から求め
られる。補正処理部１８は零点補正機能を有しており、
メインＭＰＵ１１から例えば１時間に１回の補正要求コ
マンドを受信するごとに、アナログ煙感知器３の零点の
測定に基づく火災判断部１９の補正処理を行う。またＭ
ＰＵ１１から例えば１日に１回の変換式補正要求コマン
ドを受信すると、アナログ煙感知器３の零点及び試験発
報で測定した試験発報点に基づく火災判断部１９におけ
る変換式Ｙ＝ａＸ＋ｂの補正処理を行う。The fire judging unit 19 stores constants a and b used for the conversion formula Y = aX + b in a memory.
Is obtained from the measurement result of the zero point at the time of the initialization diagnosis processing at the time of turning on the power supply and the measurement of the test issue point by turning on the test LED. The correction processing unit 18 has a zero point correction function,
Each time a correction request command is received from the main MPU 11, for example, once an hour, the fire determination unit 19 performs correction processing based on the measurement of the zero point of the analog smoke sensor 3. Also M
When a conversion formula correction request command is received from the PU 11, for example, once a day, the conversion formula Y = aX + b is corrected in the fire determination unit 19 based on the zero point of the analog smoke detector 3 and the test report point measured by the test report. Perform processing.
【００２２】図２は、本発明による警報送信レベルの補
正方法が適用される図１のアナログ煙感知器３のブロッ
ク図である。このアナログ煙感知器３は、センサ部２
１、Ａ／Ｄ変換部２２、警報レベル判定部２３及び伝送
制御部２４で構成される。センサ部２１は散乱光式の検
煙構造をもち、煙の流入による散乱光に応じた受光信号
をＡ／Ｄ変換部２２に出力する。FIG. 2 is a block diagram of the analog smoke detector 3 of FIG. 1 to which the alarm transmission level correcting method according to the present invention is applied. This analog smoke detector 3 is a sensor unit 2
1, an A / D converter 22, an alarm level determination unit 23, and a transmission control unit 24. The sensor unit 21 has a scattered light type smoke detection structure, and outputs a light reception signal corresponding to the scattered light due to the inflow of smoke to the A / D conversion unit 22.
【００２３】Ａ／Ｄ変換部２２による受光信号から受光
データへの変換は、伝送制御部２４で受信機１よりＡ／
Ｄ変換コマンドを受信した際に行われる。即ち、伝送制
御部２４は受信機１からＡ／Ｄ変換コマンドを受信する
と、そのときセンサ部２１より出力されている受光信号
をＡ／Ｄ変換部２２で受光データに変換し、伝送制御部
２４に内蔵しているメモリに記憶する。The conversion of the received light signal into the received light data by the A / D conversion unit 22 is performed by the transmission control unit 24 by the receiver 1 from the A / D converter.
This is performed when a D conversion command is received. That is, when the transmission control unit 24 receives the A / D conversion command from the receiver 1, the transmission control unit 24 converts the light reception signal output from the sensor unit 21 into light reception data at the A / D conversion unit 22 at that time. In the internal memory.
【００２４】伝送制御部２４のメモリに記憶された受光
データは、次にＡ／Ｄ変換コマンドが送出されるまでに
発生されるポーリングコマンドのアドレスから自己アド
レスを判別したときに読み出され、受信機１に送出され
る。警報レベル判定部２３は、Ａ／Ｄ変換部２２を介し
てセンサ部２１より出力された受光信号を、予め設定さ
れた警報送信レベルと比較し、警報送信レベルを超えた
ときに伝送制御部２４に対し割込信号の送信を指示す
る。警報レベル判別部２３に設定される警報送信レベル
には、火災を警報するための火災警報送信レベル、プリ
アラームを出すための注意表示警報送信レベル、あるい
は防火戸などを連動制御するための連動送信レベルなど
がある。The received light data stored in the memory of the transmission control unit 24 is read out when the own address is determined from the address of the polling command generated until the next A / D conversion command is sent out. It is sent to the machine 1. The alarm level determination unit 23 compares the light reception signal output from the sensor unit 21 via the A / D conversion unit 22 with a preset alarm transmission level, and when the signal exceeds the alarm transmission level, the transmission control unit 24 Is instructed to transmit an interrupt signal. The alarm transmission level set in the alarm level determination unit 23 includes a fire alarm transmission level for alarming a fire, a caution display alarm transmission level for issuing a pre-alarm, and an interlock transmission for interlocking control of a fire door and the like. There are levels.
【００２５】これらの各警報送信レベルは、例えば注意
表示警報送信レベルは煙濃度５［％／ｍ］に対応する警
報送信レベルが設定され、火災警報送信レベルは煙濃度
１０［％／ｍ］に対応する警報送信レベルが設定され、
更に連動送信レベルとしては煙濃度１７［％／ｍ］に対
応する警報送信レベルが設定される。これらの各警報送
信レベルの煙濃度に対する警報レベルの設定値は、その
ときの受光信号Ｘと煙濃度Ｙの変換式Ｙ＝ａＸ＋ｂに各
煙濃度の値を代入して受光信号Ｘを求めることで設定さ
れる。For each of these alarm transmission levels, for example, a warning display alarm transmission level is set to an alarm transmission level corresponding to a smoke density of 5 [% / m], and a fire alarm transmission level is set to a smoke density of 10 [% / m]. The corresponding alarm transmission level is set,
Further, an alarm transmission level corresponding to a smoke density of 17 [% / m] is set as the linked transmission level. The set value of the alarm level with respect to the smoke density of each alarm transmission level is obtained by substituting the value of each smoke density into the conversion formula Y = aX + b of the light reception signal X and the smoke density Y at that time to obtain the light reception signal X. Is set.
【００２６】ここで図２の煙感知器で警報レベル判定部
２３に火災警報送信レベルを設定した感知器は、いわゆ
るアドレッサブル煙感知器として知られている。アドレ
ッサブル煙感知器は、警報レベル判定部２３に、図１の
受信機１における火災発報煙濃度１０［％／ｍ］から変
換式により算出された検出データＸのレベルが火災警報
送信レベルとして書込み設定されている。Here, the smoke detector of FIG. 2 in which the fire alarm transmission level is set in the alarm level determination section 23 is known as an addressable smoke detector. The addressable smoke sensor writes the level of the detection data X calculated by the conversion formula from the fire alarm smoke density 10 [% / m] in the receiver 1 of FIG. Is set.
【００２７】このため、警報レベル判定部２３でＡ／Ｄ
変換器２２からの検出データＸが予め設定された火災警
報送信レベルに達すると、火災と判断し、割込信号を受
信機１に送信する。この割込信号を受けた受信機１側に
あっては、割込発生元を確認するための検索コマンドを
発行し、警報レベル判定部２３を備えたアドレッサブル
煙感知器からの割込信号であることを確認すると、その
アドレスを認識して、火災警報と同時に火災発生端末の
表示を行う。For this reason, the alarm level judgment unit 23 sets the A / D
When the detection data X from the converter 22 reaches a preset fire alarm transmission level, it is determined that a fire has occurred, and an interrupt signal is transmitted to the receiver 1. The receiver 1 receiving the interrupt signal issues a search command for confirming the source of the interrupt, and is an interrupt signal from an addressable smoke detector having an alarm level determination unit 23. If it is confirmed, the address is recognized and a fire alarm terminal is displayed simultaneously with the fire alarm.
【００２８】更に必要があれば、割込信号を送出したア
ドレッサブル煙感知器に対し集中監視用のコマンドを送
り、Ａ／Ｄ変換コマンドやポーリングに依存することな
く、伝送制御部２４からの割込みで、より短い周期でセ
ンサ部２１の受光信号によるＡ／Ｄ変換部２２からの検
出データを受信機１に送信させて、火災の推移を集中監
視することもできる。If necessary, a command for centralized monitoring is sent to the addressable smoke detector that has sent the interrupt signal, and is not interrupted by the A / D conversion command or polling, but is interrupted by the transmission control unit 24. Alternatively, the detection data from the A / D conversion unit 22 based on the light receiving signal of the sensor unit 21 can be transmitted to the receiver 1 in a shorter cycle, and the transition of the fire can be monitored intensively.
【００２９】この警報レベル判定部２３に設定された火
災警報送信レベル、注意表示警報送信レベル、連動送信
レベルなどの各種の警報送信レベルは、図１の受信機１
のサブＭＰＵ１２−１，１２−２の補正処理部１８によ
る零点の補正、及び火災判断部１９における変換式の補
正に伴って、警報受信レベルの再設定による補正が行わ
れる。Various alarm transmission levels such as the fire alarm transmission level, the caution display alarm transmission level, and the interlocking transmission level set in the alarm level determination section 23 are determined by the receiver 1 shown in FIG.
With the correction of the zero point by the correction processing unit 18 of the sub-MPUs 12-1 and 12-2, and the correction of the conversion formula by the fire determination unit 19, the correction by resetting the alarm reception level is performed.
【００３０】図３は、図１の受信機１のメインＭＰＵ１
１における零点補正制御のフローチャートである。まず
ステップＳ１で状態監視処理を行う。次にステップＳ２
で、零点補正周期に達したか否かチェックする。ここ
で、零点補正周期は例えば１時間に設定されている。零
点補正周期であれば、ステップＳ３で、変換式補正周期
に達したか否かチェックする。ここで変換式補正周期
は、例えば１日（２４時間）に設定されている。FIG. 3 shows the main MPU 1 of the receiver 1 shown in FIG.
3 is a flowchart of zero point correction control in FIG. First, a state monitoring process is performed in step S1. Next, step S2
Then, it is checked whether the zero point correction cycle has been reached. Here, the zero point correction cycle is set to, for example, one hour. If it is the zero point correction cycle, it is checked in step S3 whether the conversion equation correction cycle has been reached. Here, the conversion formula correction cycle is set to, for example, one day (24 hours).
【００３１】変換式補正周期でなければステップＳ４に
進み、サブＭＰＵ１２−１，１２−２に零点補正要求コ
マンドを送信する。尚、ステップＳ３で変換式補正周期
であればステップＳ５に進み、サブＭＰＵ１２−１，１
２−２に変換式補正要求コマンドを送信する。ステップ
Ｓ６はその他の受信処理であり、この処理には火災検出
に伴う表示部１２に対する警報表示処理、操作部１３か
らの操作入力に伴う各種の処理が含まれる。If not, the flow advances to step S4 to transmit a zero point correction request command to the sub-MPUs 12-1 and 12-2. If it is determined in step S3 that the conversion formula is a correction cycle, the process proceeds to step S5, where the sub-MPU 12-1, 1
A conversion formula correction request command is transmitted to 2-2. Step S6 is another reception process, which includes an alarm display process on the display unit 12 upon detection of a fire and various processes upon operation input from the operation unit 13.
【００３２】図４は受信機１のサブＭＰＵ１２−１，１
２−２における零点補正処理のフローチャートであり、
メインＭＰＵ１１から零点補正要求コマンドを受信した
ときに実行される。まずステップＳ１１で、現在までの
零点値Ｚ１と新たに測定した零点値Ｚ２（以下「測定零
点値Ｚ２」という）との差分ｄ＝Ｚ２−Ｚ１の絶対値が
補正限界幅Ｌよりも大きいかどうか判断する。この測定
零点値Ｚ２の測定は次のように行ってもよい。定常監視
状態において、サブＭＰＵ１２−１，１２−２の各々は
Ａ／Ｄ変換コマンドを送信した後のポーリングコマンド
の送信によりアナログ煙感知器３の検出データを収集
し、収集された検出データは過去１０分間のものがメモ
リに保持されている。FIG. 4 shows the sub-MPU 12-1,1 of the receiver 1.
It is a flowchart of the zero point correction process in 2-2,
This is executed when a zero point correction request command is received from the main MPU 11. First, in step S11, whether the absolute value of the difference d = Z2-Z1 between the current zero value Z1 and the newly measured zero value Z2 (hereinafter referred to as "measured zero value Z2") is larger than the correction limit width L. to decide. The measurement of the measurement zero value Z2 may be performed as follows. In the steady monitoring state, each of the sub-MPUs 12-1 and 12-2 collects the detection data of the analog smoke sensor 3 by transmitting the polling command after transmitting the A / D conversion command, and the collected detection data is in the past. The one for 10 minutes is kept in memory.
【００３３】そこで補正要求コマンドを受信した際に、
メモリに保持している収集データの中から最新のデータ
を複数読み出して、その平均値として測定零点値Ｚ２を
求める。また補正要求コマンドを受信した後に収集され
る複数の検出データの平均値として、測定零点値Ｚ２を
求めてもよい。ステップＳ１１で差分ｄの絶対値が補正
限界幅Ｌを超えていない場合は、ステップＳ１２で差分
ｄを補正値ｈとする。次にステップＳ１４で、零点値Ｚ
１と測定零点値Ｚ２の大小を比較する。測定零点値Ｚ２
の方が現在の零点値Ｚ１よりも大きい場合は、ステップ
Ｓ１５で、零点値Ｚ１を差分ｄあるいは補正限界幅Ｌの
補正値ｈ分だけ上方に補正する。つまり、（Ｚ１＋ｈ）
を新たな零点値とする。ここで補正後の零点値をＺ２´
とする。同時に、試験発報点値Ｆ１も補正値ｈ分だけ上
方に擬似的に補正する。つまり、（Ｆ１＋ｈ）を新たな
試験発報点値とする。Then, when the correction request command is received,
A plurality of latest data is read out from the collected data held in the memory, and a measured zero value Z2 is obtained as an average value thereof. Alternatively, the measured zero point value Z2 may be obtained as an average value of a plurality of pieces of detection data collected after receiving the correction request command. If the absolute value of the difference d does not exceed the correction limit width L in step S11, the difference d is set as the correction value h in step S12. Next, in step S14, the zero value Z
1 and the magnitude of the measured zero point value Z2 are compared. Measurement zero point value Z2
Is larger than the current zero value Z1, the zero value Z1 is corrected upward by the difference d or the correction value h of the correction limit width L in step S15. That is, (Z1 + h)
Is the new zero value. Here, the corrected zero point value is Z2 '
And At the same time, the test alert point value F1 is pseudo-corrected upward by the correction value h. That is, (F1 + h) is set as a new test alert point value.
【００３４】一方、現在の零点値Ｚ１の方が測定零点値
Ｚ２よりも大きい場合は、ステップＳ１６で、零点値Ｚ
１を同様に差分ｄあるいは補正限界幅Ｌの補正値ｈ分だ
け下方に修正する。つまり、（Ｚ１−ｈ）を新たな零点
値とする。ここで補正後の零点値をＺ２´とする。同時
に、試験発報点値Ｆ１も補正値ｈ分だけ下方に補正し
て、試験発報点値Ｆ２とする。つまり、（Ｆ１−ｈ）を
新たな試験発報点値Ｆとする。On the other hand, if the current zero point value Z1 is larger than the measured zero point value Z2, the zero point value Z is determined in step S16.
Similarly, 1 is corrected downward by the difference d or the correction value h of the correction limit width L. That is, (Z1-h) is set as a new zero point value. Here, the corrected zero point value is defined as Z2 '. At the same time, the test alert point value F1 is also corrected downward by the correction value h to obtain a test alert point value F2. That is, (F1-h) is set as a new test alert point value F.
【００３５】次にステップＳ１７で、補正後の零点値Ｚ
２´及び試験発報値Ｆ２が予め定めた規定レベルの範囲
内にあるかどうかチェックする。規定レベルの範囲内に
なければアナログ煙感知器３に障害が発生しているとい
うことになるので、ステップＳ１８で端末障害発生処理
を行い、障害警報を発生する。零点値Ｚ２´及び試験発
報値Ｆ２が規定レベル範囲内にある場合は、次にステッ
プＳ１９で、補正後の零点値Ｚ２´、試験発報値Ｆ２か
ら変換式を算出して補正する。更に本発明にあっては、
端末のアナログ煙感知器３の警報レベル判定部２３に設
定している警報送信レベル、例えば煙濃度５［％／ｍ］
の注意表示警報送信レベル値Ｐ１を擬似的に補正し、補
正した注意表示警報送信レベル値Ｐ２を対象となるアナ
ログ煙感知器３に送信して、図２の警報レベル判定部２
３に再設定する。Next, in step S17, the corrected zero value Z
It is checked whether 2 ′ and the test alert value F2 are within the range of a predetermined specified level. If it is not within the range of the specified level, it means that a failure has occurred in the analog smoke detector 3, so a terminal failure occurrence process is performed in step S18, and a failure alarm is generated. If the zero value Z2 'and the test notification value F2 are within the specified level range, then in step S19, the conversion formula is calculated from the corrected zero value Z2' and the test notification value F2 to make correction. Furthermore, in the present invention,
The alarm transmission level set in the alarm level determination unit 23 of the analog smoke detector 3 of the terminal, for example, smoke density 5 [% / m]
The warning display alarm transmission level value P1 is pseudo-corrected, and the corrected warning display alarm transmission level value P2 is transmitted to the target analog smoke detector 3, and the alarm level determination unit 2 shown in FIG.
Reset to 3.
【００３６】この警報送信レベルの補正の方法は、補正
した変換式から、例えば煙濃度５［％／ｍ］に対応した
注意表示警報送信レベルＰ２を算出してもよいし、煙濃
度５［％／ｍ］に対応した注意表示警報送信レベルＰ１
を補正値ｈ分だけ上下に補正して求めても同じ値が得ら
れる。つまり、後者の方法の場合、測定零点値Ｚ２の方
が現在の零点値Ｚ１よりも大きい場合は、アナログ煙感
知器３に対する例えば煙濃度５［％／ｍ］に対応した注
意表示警報送信レベル値Ｐ１を補正値ｈ分だけ上方に補
正し、補正した注意表示警報送信レベル値Ｐ２をアナロ
グ煙感知器３に送って、図２の警報レベル判定部２３に
再設定する。逆に現在の零点値Ｚ１の方が測定零点値Ｚ
２よりも大きい場合は、注意表示警報送信レベル値Ｐ１
を補正値ｈ分だけ下方に補正し、補正した注意表示警報
送信レベル値Ｐ２をアナログ煙感知器３に送って再設定
する。The warning transmission level may be corrected by calculating a warning display warning transmission level P2 corresponding to, for example, a smoke density of 5 [% / m] from the corrected conversion formula, or a smoke density of 5 [%]. / M] warning display alarm transmission level P1
Can be obtained by correcting up and down by the correction value h. That is, in the case of the latter method, when the measured zero value Z2 is larger than the current zero value Z1, the warning display alarm transmission level value corresponding to the smoke density 5 [% / m] for the analog smoke detector 3 is provided. P1 is corrected upward by the correction value h, and the corrected caution display alarm transmission level value P2 is sent to the analog smoke detector 3 and reset in the alarm level determination unit 23 in FIG. Conversely, the current zero value Z1 is the measured zero value Z
If it is larger than 2, the warning display alarm transmission level value P1
Is corrected downward by the correction value h, and the corrected caution display / alarm transmission level value P2 is sent to the analog smoke sensor 3 to be reset.
【００３７】図５は、変換式補正要求コマンドを受信し
た際に実行されるサブＭＰＵ１２−１，１２−２におけ
る変換式補正処理のフローチャートである。まずステッ
プＳ２１からステップＳ２４までは、図４に示したステ
ップＳ１からステップＳ１４と同じ動作を行う。ステッ
プＳ２４で測定零点値Ｚ２の方が現在の零点値Ｚ１より
も大きい場合は、ステップＳ２５で零点値Ｚ１を補正値
ｈ分だけ上方に補正する。この補正後の零点値をＺ２´
とする。FIG. 5 is a flowchart of the conversion formula correction processing in the sub-MPUs 12-1 and 12-2 executed when the conversion formula correction request command is received. First, in steps S21 to S24, the same operations as those in steps S1 to S14 shown in FIG. 4 are performed. If the measured zero point value Z2 is larger than the current zero point value Z1 in step S24, the zero point value Z1 is corrected upward by the correction value h in step S25. The corrected zero point value is Z2 '
And
【００３８】一方、現在の零点値Ｚ１の方が測定零点値
Ｚ２よりも大きい場合は、ステップＳ２６で零点値Ｚ１
を補正値ｈ分だけ下方に補正する。この補正後の零点値
をＺ２´とする。次にステップＳ２７で、試験コマンド
を送って試験動作を行わせ、テストＬＥＤの発行で試験
発報点値Ｆ２を測定する。なおテストＬＥＤは試験終了
コマンドを送ることで消灯される。そして、現在の試験
発報点値Ｆ１から新たに測定された試験発報点値Ｆ２に
補正する。On the other hand, if the current zero value Z1 is larger than the measured zero value Z2, the zero value Z1 is determined in step S26.
Is corrected downward by the correction value h. The corrected zero point value is defined as Z2 '. Next, in step S27, a test command is sent to cause a test operation to be performed, and a test LED is issued to measure a test alert point value F2. The test LED is turned off by sending a test end command. Then, the current test point value F1 is corrected to the newly measured test point value F2.
【００３９】次にステップＳ２８で、補正後の零点値Ｚ
２´及び試験発報点値Ｆ２が規定のレベル範囲内にある
かどうかチェックする。規定のレベル範囲内になけれ
ば、ステップＳ２９で端末障害発生処理を行い、障害警
報を発生する。零点値Ｚ２´及び試験発報点値Ｆ２が規
定レベル範囲内にある場合は、次のステップＳ３０で、
補正後の零点値Ｚ２´、試験発報点値Ｆ２から変換式を
算出する。更に算出した変換式から警報送信レベルを算
出し、アナログ煙感知器３に送って警報レベル判定部２
３に再設定する。これによって、零点値、試験発報点
値、警報送信レベル値が例えば１日に１回という零点補
正に比べると長い周期で正しく補正される。Next, in step S28, the corrected zero value Z
It is checked whether 2 ′ and the test alert point value F2 are within a specified level range. If it is not within the prescribed level range, a terminal failure occurrence process is performed in step S29, and a failure alert is generated. When the zero point value Z2 'and the test alert point value F2 are within the specified level range, in the next step S30,
A conversion formula is calculated from the corrected zero point value Z2 'and the test alert point value F2. Further, an alarm transmission level is calculated from the calculated conversion formula, and sent to the analog smoke detector 3 to send the alarm level determination unit 2.
Reset to 3. As a result, the zero point value, the test alert point value, and the alarm transmission level value are correctly corrected in a longer cycle than the zero point correction of, for example, once a day.
【００４０】図６は、本発明による零点補正前と零点補
正後の変換特性図である。図６において、横軸に煙濃度
Ｙ［％／ｍ］をとり、縦軸に煙感知器の検出データ即ち
受光素子からの受光信号のＡ／Ｄ変換値Ｘをとってい
る。この変換特性は例えばＹ＝ａＸ＋ｂの１次式で表わ
され、補正前はＹ＝０［％／ｍ］のときＸ＝Ｚ１である
ことから、定数ｂはｂ＝−ａＺ１となり、 Ｙ＝ａＸ−ａＺ１ となっている。FIG. 6 is a conversion characteristic diagram before and after zero correction according to the present invention. In FIG. 6, the horizontal axis represents smoke density Y [% / m], and the vertical axis represents detection data of the smoke detector, that is, the A / D converted value X of the light receiving signal from the light receiving element. This conversion characteristic is represented by, for example, a linear expression of Y = aX + b. Before correction, X = Z1 when Y = 0 [% / m]. Therefore, the constant b becomes b = −aZ1, and Y = aX −aZ1.
【００４１】この状態で、１時間に１回の零点補正要求
コマンドを受信すると、零点補正のために測定零点値Ｚ
２を測定し、現在の零点値Ｚ１と測定零点値Ｚ２の差分
ｄ＝Ｚ２−Ｚ１が補正限界値Ｌより小さければ、現在の
零点値Ｚ１は測定零点値Ｚ２に更新される。同時に、現
在の試験発報点値Ｆ１を差分ｄだけ変化させて試験発報
点値Ｆ２に修正する。測定零点値Ｚ２、試験発報点値Ｆ
２が規定のレベル範囲に入っていれば、この測定零点値
Ｚ２、試験発報点値Ｆ２を有効な値として更新する。In this state, when a zero point correction request command is received once an hour, the measured zero point value Z for zero point correction is received.
2 is measured, and if the difference d = Z2-Z1 between the current zero value Z1 and the measured zero value Z2 is smaller than the correction limit value L, the current zero value Z1 is updated to the measured zero value Z2. At the same time, the current test issue point value F1 is changed to the test issue point value F2 by changing the difference d. Measurement zero point value Z2, test alert point value F
If 2 is within the specified level range, the measured zero point value Z2 and the test alert point value F2 are updated as valid values.
【００４２】更に図６の変換特性にあっては、端末のア
ナログ煙感知器３に設定する警報送信レベルとして煙濃
度５［％／ｍ］の注意表示警報送信レベルを示してい
る。注意表示警報送信レベル値は、補正前はＰ１であ
り、これを差分ｄだけ変化させてＰ２に補正する。この
ような注意表示警報送信レベル値Ｐ１のＰ２への補正は
受信機１で行われ、補正した結果をアナログ煙感知器３
に送信して、警報レベル判定部２３に再設定することに
なる。Further, in the conversion characteristic of FIG. 6, a warning display alarm transmission level of a smoke density of 5 [% / m] is shown as an alarm transmission level set in the analog smoke detector 3 of the terminal. The caution display alarm transmission level value is P1 before correction, and is changed to P2 by changing this by the difference d. The correction of the warning display alarm transmission level value P1 to P2 is performed by the receiver 1, and the corrected result is output to the analog smoke detector 3
To the alarm level determination unit 23.
【００４３】尚、差分ｄが補正限界値Ｌより大きい場合
は、現在の零点値Ｚ１に補正限界値Ｌだけ変化させた零
点値Ｚ２とする。同時に、現在の試験発報点値Ｆ１を補
正限界値Ｌだけ変化させ、試験発報点値Ｆ２に修正し、
零点値Ｚ２´、試験発報点値Ｆ２が規定のレベル範囲内
に入っていれば、この零点値Ｚ２´、試験発報点値Ｆ２
を有効な値として更新する。If the difference d is larger than the correction limit value L, the zero value Z2 is obtained by changing the current zero value Z1 by the correction limit value L. At the same time, the current test issue point value F1 is changed by the correction limit value L and corrected to the test issue point value F2,
If the zero point value Z2 'and the test notification point value F2 are within the specified level range, the zero point value Z2' and the test notification point value F2
Is updated as a valid value.
【００４４】同様に、注意表示警報送信レベル値Ｐ１に
ついても、補正限界値Ｌだけ変化させて注意表示警報送
信レベル値Ｐ２に補正し、アナログ煙感知器３に送っ
て、図２に示した警報レベル判定部２３に再設定する。
更に、零点測定によりＹ＝０［％／ｍ］のときのＡ／Ｄ
変換値ＸとしてＸ＝Ｚ２が得られたことから、定数ｂは
ｂ＝ａＺ２となり、変換式は Ｙ＝ａＸ−ａＺ２ に修正され、火災判断部１９の変換式を更新する。当
然、Ｙ＝０［％／ｍ］，Ｘ＝Ｚ２と、Ｙ＝１８［％／
ｍ］，Ｘ＝Ｆ２の２点から変換式を算出しても同じ結果
となる。尚、前述したように、補正した変換式Ｙ＝ａＸ
−ａＺ２にＹ＝５［％／ｍ］を代入して注意表示警報送
信レベル値Ｐ２を算出して、アナログ煙感知器３に送っ
て警報レベル判定部２３に再設定してもよく、結果的に
は、注意表示警報送信レベルを差分ｄ若しくは補正限界
値Ｌだけ補正したことになる。Similarly, the caution display alarm transmission level value P1 is corrected by changing the correction limit value L to the caution display alarm transmission level value P2, sent to the analog smoke detector 3, and sent to the analog smoke detector 3 to generate the alarm shown in FIG. The value is reset in the level determination unit 23.
Further, A / D at the time of Y = 0 [% / m] by zero point measurement
Since X = Z2 is obtained as the conversion value X, the constant b becomes b = aZ2, the conversion formula is corrected to Y = aX-aZ2, and the conversion formula of the fire determination unit 19 is updated. Naturally, Y = 0 [% / m], X = Z2, and Y = 18 [% / m]
m] and X = F2, the same result is obtained by calculating the conversion formula. As described above, the corrected conversion equation Y = aX
The warning display alarm transmission level value P2 may be calculated by substituting Y = 5 [% / m] into −aZ2, and may be sent to the analog smoke detector 3 and reset in the alarm level determination unit 23. Means that the caution display warning transmission level has been corrected by the difference d or the correction limit value L.
【００４５】図７は本発明の対象となる煙感知器の他の
実施例を示したブロック図であり、この実施例にあって
は煙感知器自身に図１の受信機１のサブＭＰＵ１２−
１，１２−２に設けている補正処理部１８の機能を設け
たことを特徴とする。補正処理部１８は、煙感知器自身
において、図３，図４及び図５のフローチャートに示し
た零点測定周期ごとの擬似的な零点、発報点及び警報送
信レベルの補正と、補正後の値を使用した変換式の更新
を行う。FIG. 7 is a block diagram showing another embodiment of the smoke detector to which the present invention is applied. In this embodiment, the sub-MPU 12- of the receiver 1 shown in FIG.
1, 12-2 is provided with the function of the correction processing unit 18. The correction processing unit 18 corrects the pseudo zero, the alarm point, and the alarm transmission level for each zero measurement cycle shown in the flowcharts of FIGS. 3, 4, and 5 in the smoke detector itself, and calculates the corrected values. Update the conversion formula using.
【００４６】更に、発報点補正周期に達すると、変換式
の補正処理を、自分自身のセンサ部２１に対する試験動
作を行って零点及び試験発報点を求め、この２点から正
しい変換式への更新を行う。このため図７の煙感知器に
あっては、図１の受信機１側で零点発報点変換式の補正
が行われても、その結果に基づく警報送信レベルの送信
による再設定を不要とすることができる。Further, when the alarm point correction period is reached, the conversion processing of the conversion equation is performed by performing a test operation on the sensor unit 21 of the own apparatus to obtain a zero point and a test alarm point, and the two points are converted into a correct conversion equation. Update. For this reason, in the smoke detector of FIG. 7, even if the zero point reporting point conversion formula is corrected on the receiver 1 side of FIG. 1, it is not necessary to reset the alarm transmission level based on the correction result. can do.
【００４７】尚、上記の実施形態にあっては、煙感知器
で受光信号が警報送信レベルを越えたとき、受信機１に
対し割込信号を送信する場合に例にとっているが、割込
信号を送信せず、受信機１からのポーリングコマンドに
対する応答データとして各種の警報信号を送信するよう
にしてもよい。割込信号の送信とするか否かは、送信す
る警報信号の緊急性や重要度等に応じて適宜に定めるこ
とができる。In the above embodiment, an example is described in which an interrupt signal is transmitted to the receiver 1 when the light receiving signal exceeds the alarm transmission level in the smoke detector. May be transmitted, and various alarm signals may be transmitted as response data to the polling command from the receiver 1. Whether or not to transmit the interrupt signal can be appropriately determined according to the urgency, importance, and the like of the alarm signal to be transmitted.
【００４８】また上記の実施形態の数値は一例にすぎ
ず、本発明はこれらの数値による限定は受けない。The numerical values in the above embodiment are merely examples, and the present invention is not limited by these numerical values.
【００４９】[0049]
【発明の効果】以上説明してきたように本発明によれ
ば、零点値のみを短時間のサイクルで測定し、その測定
結果に基づいて火災警報送信レベル、注意表示警報送信
レベル、連動レベルなどの煙感知器に設定している適宜
の警報送信レベルが補正されることで、発報試験を伴う
補正で未警戒の状態を増やすことなく、より正確な警報
送信レベルの零点変動に追従した補正が行われ、各種の
警報送信レベルに基づく火災警報、注意表示警報、連動
制御の誤報、誤動作や遅れを防止し、信頼性の高い防災
監視ができる。As described above, according to the present invention, only the zero value is measured in a short cycle, and based on the measurement result, the fire alarm transmission level, the caution display alarm transmission level, the interlocking level, and the like are determined. By correcting the appropriate alarm transmission level set in the smoke detector, a more accurate correction that follows the zero-point fluctuation of the alarm transmission level can be made without increasing the number of unwatched states with the correction accompanied by the alarm test. It is possible to prevent fire alarms, caution display alarms, erroneous reports, malfunctions and delays of interlocking control based on various alarm transmission levels, and perform highly reliable disaster prevention monitoring.
【００５０】更に、零点測定より長い例えば１日ないし
１週間という周期で試験発報により試験発報点を測定し
て変換特性を正しい値に修正するので、擬似的な修正で
誤差が蓄積されても、この時点で正しい変換式に戻り、
より信頼性の高い煙感知器に設定された警報送信レベル
を使用した防災監視が実現できる。Further, since the test report point is measured by the test report at a cycle longer than the zero point measurement, for example, one day to one week, and the conversion characteristic is corrected to a correct value, errors are accumulated by pseudo correction. Returns to the correct conversion formula at this point,
Disaster prevention monitoring using the alarm transmission level set for a more reliable smoke detector can be realized.
【図１】本発明の割込送信レベル補正方法が適用される
防災監視装置のブロック図FIG. 1 is a block diagram of a disaster prevention monitoring device to which an interrupt transmission level correction method according to the present invention is applied.
【図２】受信機での補正結果の送信設定を受ける本発明
の対象となる煙感知器のブロック図FIG. 2 is a block diagram of a smoke detector according to the present invention, which receives a correction result transmission setting at a receiver.
【図３】受信機のメインＭＰＵよる補正制御の全体的な
処理のフローチャートFIG. 3 is a flowchart of an overall process of correction control by a main MPU of the receiver.
【図４】受信機のサブＭＰＵにおける零点補正処理のフ
ローチャートFIG. 4 is a flowchart of a zero point correction process in a sub-MPU of the receiver.
【図５】受信機のサブＭＰＵにおける変換式補正処理の
フローチャートFIG. 5 is a flowchart of a conversion-type correction process in a sub-MPU of the receiver.
【図６】零点補正前と零点補正後の変換特性図FIG. 6 is a conversion characteristic diagram before and after zero correction.
【図７】感知器自身で補正を行う本発明の対象となる煙
感知器のブロック図FIG. 7 is a block diagram of a smoke sensor according to the present invention, which performs correction by the sensor itself.
【符号の説明】 １：受信機 ２，３，４，５：端末 １１：メインＭＰＵ １２−１，１２−２：サブＭＰＵ １３：操作部 １４：表示部 １５：電源部 １６：受信制御部 １７：伝送制御部 １８：補正処理部 １９：火災判断部 ２１：センサ部 ２２：Ａ／Ｄ変換部 ２３：警報レベル判定部 ２４：伝送制御部[Description of Signs] 1: Receivers 2, 3, 4, 5: Terminal 11: Main MPU 12-1, 12-2: Sub MPU 13: Operation unit 14: Display unit 15: Power supply unit 16: Reception control unit 17 : Transmission control unit 18: Correction processing unit 19: Fire determination unit 21: Sensor unit 22: A / D conversion unit 23: Alarm level determination unit 24: Transmission control unit
───────────────────────────────────────────────────── フロントページの続き (72)発明者 諸田 知直 東京都品川区上大崎２丁目10番43号 ホ ーチキ株式会社内 (56)参考文献 特開 平５−325058（ＪＰ，Ａ) 特開 平６−281611（ＪＰ，Ａ) (58)調査した分野(Int.Cl.7，ＤＢ名) G08B 17/10 G08B 17/00 G08B 29/18 G01N 21/59 ──────────────────────────────────────────────────続 き Continuation of the front page (72) Inventor Tomonao Moroda 2-10-4, Kami-Osaki, Shinagawa-ku, Tokyo Inside Houtiki Co., Ltd. (56) References JP-A-5-325058 (JP, A) Hei 6-281611 (JP, A) (58) Fields investigated (Int. Cl. 7 , DB name) G08B 17/10 G08B 17/00 G08B 29/18 G01N 21/59
Claims (9)
信号を煙感知器で検出して受信機に送り、該受信機で受
光信号と煙濃度間の変換特性に従って前記受光信号から
煙濃度を求めて火災を判断し、更に、煙感知器に所定の
煙濃度閾値に対応した警報送信レベルを予め設定し、前
記受光信号が前記警報送信レベルを越えたときに前記受
信機に警報信号を送信する煙感知器の送信警報レベル補
正方法に於いて、 前記火災受信機により所定の零点補正周期毎に前記煙感
知器の零点値を測定し、それまで測定した零点値と新た
に測定した零点値との差分を求め、 該差分が補正限界幅内であれば、零点値を新たに得られ
た値に補正すると共に試験発報点値を該差分だけ補正
し、前記差分が補正限界幅を越える場合は零点値を現在値に
補正限界幅を付加した値に補正すると共に試験発報点値
も補正限界幅を付加した値に補正し、 前記変換特性を、補正後の零点値と試験発報点値を結ん
だ変換特性に補正し、 更に、前記煙感知器の警報送信レベルを該差分だけ補正
した後に前記煙感知器に送って再設定することを特徴と
する煙感知器の送信警報レベル補正方法。A smoke detector detects a light reception signal corresponding to a smoke density caused by a fire in a monitoring area and sends the light reception signal to a receiver. The receiver receives a smoke signal from the light reception signal according to a conversion characteristic between the light reception signal and the smoke density. Determine the fire by determining the concentration, and further set an alarm transmission level corresponding to a predetermined smoke concentration threshold in the smoke detector in advance, and when the received light signal exceeds the alarm transmission level, an alarm signal to the receiver. To send the smoke detector's transmission alarm level supplement
In the correct method , the fire receiver measures a zero value of the smoke detector at every predetermined zero correction period, and obtains a difference between the zero value measured so far and a newly measured zero value, and the difference Is within the correction limit width, the zero value is corrected to a newly obtained value, and the test alert point value is corrected by the difference.If the difference exceeds the correction limit width, the zero value is changed to the current value.
Correction to the value to which the correction limit width is added and the value of the test report point
Is corrected to a value obtained by adding a correction limit width, and the conversion characteristic is corrected to a conversion characteristic obtained by connecting the corrected zero point value and the test notification point value. A method of correcting the transmission alarm level of the smoke detector, wherein the correction is made after the correction and the correction is sent to the smoke detector.
補正方法に於いて、所定の零点補正周期より長い変換特性補正周期に達する
毎に、前記変換特性を、補正後の零点値と前記煙感知器
の試験発報で測定した試験発報点値を結んだ変換特性に
補正 することを特徴とする煙感知器の送信警報レベル補
正方法。2. The transmission alarm level of the smoke detector according to claim 1.
In the correction method , a conversion characteristic correction period longer than a predetermined zero point correction period is reached.
In each case, the conversion characteristic is calculated based on the corrected zero value and the smoke detector.
Conversion characteristics connecting the test report points measured in the test report
A method for correcting a transmission alarm level of a smoke detector, wherein the correction is performed.
信号を煙感知器で検出して受信機に送り、該受信機で受
光信号と煙濃度間の変換特性に従って前記受光信号から
煙濃度を求めて火災を判断し、更に、煙感知器に所定の
煙濃度閾値に対応した警報送信レベルを予め設定し、前
記受光信号が前記警報送信レベルを越えたときに前記受
信機に警報信号を送信する煙感知器の送信警報レベル補
正方法に於いて、前記火災受信機により所定の零点補正周期毎に前記煙感
知器の零点値を測定し、それまで測定した零点値と新た
に測定した零点値との差分を求め、 該差分が補正限界幅内であれば、零点値を新たに得られ
た値に補正すると共に試験発報点値を該差分だけ補正
し 、前記変換特性を、補正後の零点値と試験発報点値を結ん
だ変換特性に補正し、 更に、前記煙感知器の警報送信レベルを該差分だけ補正
した後に前記煙感知器に送って再設定し、 所定の 零点補正周期より長い変換特性補正周期に達する
毎に、前記変換特性を、補正後の零点値と前記煙感知器
の試験発報で測定した試験発報点値を結んだ変換特性に
補正することを特徴とする煙感知器の送信警報レベル補
正方法。3. A light receiving device according to a smoke density caused by a fire in a monitored area.
The signal is detected by the smoke detector, sent to the receiver, and received by the receiver.
From the received light signal according to the conversion characteristics between light signal and smoke density
Determine the fire by determining the smoke density, and furthermore,
Set the alarm transmission level corresponding to the smoke density threshold in advance and
When the received light signal exceeds the alarm transmission level,
In a method for correcting a transmission alarm level of a smoke detector for transmitting an alarm signal to a transceiver, the fire detector may detect the smoke sensation every predetermined zero point correction cycle.
Measure the zero value of the sensor, and compare the zero value
The difference from the measured zero value is obtained, and if the difference is within the correction limit width, a new zero value can be obtained.
And the test point value is corrected by the difference.
The conversion characteristic is obtained by connecting the corrected zero point value and the test report point value.
And the alarm transmission level of the smoke detector is corrected by the difference.
After that, it is sent to the smoke sensor and reset, and every time a conversion characteristic correction period longer than a predetermined zero correction period is reached, the conversion characteristic is measured by the corrected zero value and the test report of the smoke detector. A method for correcting a transmission alarm level of a smoke detector, comprising correcting a converted test characteristic value to a converted conversion characteristic.
補正方法に於いて、前記差分が補正限界幅を越える場合は零点値を現在値に
補正限界幅を付加した値に補正すると共に試験発報点値
も補正限界幅を付加した値に補正する ことを特徴とする
煙感知器の送信警報レベル補正方法。4. A method for correcting a transmission alarm level of a smoke sensor according to claim 3 , wherein the zero point value is set to a current value when the difference exceeds a correction limit width.
Correction to the value to which the correction limit width is added and the value of the test report point
And correcting the transmission alarm level of the smoke detector.
信号を煙感知器で検出して受信機に送り、該受信機で受
光信号と煙濃度間の変換特性に従って前記受光信号から
煙濃度を求めて火災を判断し、更に、煙感知器に所定の
煙濃度閾値に対応した警報送信レベルを予め設定し、前
記受光信号が前記警報送信レベルを越えたときに前記受
信機に警報信号を送信する煙感知器の送信警報レベル補
正方法に於いて、 前記煙感知器自身に受光信号と煙濃度の変換特性を設定
し、所定の零点補正周期毎に自己の零点を測定し、それ
まで測定した零点値と新たに測定した零点値との差分を
求め、 該差分が補正限界幅内であれば、零点値を新たに得られ
た値に補正すると共に試験発報点値を該差分だけ補正
し、 前記差分が補正限界幅を越える場合は零点値を現在値に
補正限界幅を付加した 値に補正すると共に試験発報点値
も補正限界幅を付加した値に補正し、 前記変換特性を、補正後の零点値と試験発報点値を結ん
だ変換特性に補正し、 更に、前記警報送信レベルを該差分だけ補正した値に再
設定することを特徴とする煙感知器の送信警報レベル補
正方法。 5. A light receiving device according to a smoke density caused by a fire in a monitored area.
The signal is detected by the smoke detector, sent to the receiver, and received by the receiver.
From the received light signal according to the conversion characteristics between light signal and smoke density
Determine the fire by determining the smoke density, and furthermore,
Set the alarm transmission level corresponding to the smoke density threshold in advance and
When the received light signal exceeds the alarm transmission level,
Compensation of the transmission alarm level of the smoke detector that sends an alarm signal to the transceiver
In the correct method, set the conversion characteristics of the received light signal and smoke density in the smoke detector itself
And measure its own zero at every predetermined zero correction cycle.
The difference between the zero value measured up to and the newly measured zero value
If the difference is within the correction limit width, a new zero point value can be obtained.
And the test point value is corrected by the difference.
If the difference exceeds the correction limit width, the zero point value is set to the current value.
Correction to the value to which the correction limit width is added and the value of the test report point
Is corrected to a value to which a correction limit width is added, and the conversion characteristic is obtained by connecting the corrected zero point value and the test report point value.
The alarm transmission level is corrected to a value corrected by the difference.
Smoke detector transmission alarm level compensation characterized by setting
Right way.
補正方法において、 所定の零点補正周期より長い変換特性補正周期に達する
毎に、前記変換特性を、補正後の零点値と前記煙感知器
の試験発報で測定した試験発報点値を結んだ変換特性に
補正することを特徴とする煙感知器の送信警報レベル補
正方法。 6. The transmission alarm level of the smoke detector according to claim 5.
In the correction method, a conversion characteristic correction period longer than a predetermined zero point correction period is reached.
In each case, the conversion characteristic is calculated based on the corrected zero value and the smoke detector.
Conversion characteristics connecting the test report points measured in the test report
Compensating for the transmission alarm level of the smoke detector, characterized by correcting
Right way.
信号を煙感知器で検出して受信機に送り、該受信機で受
光信号と煙濃度間の変換特性に従って前記受光信号から
煙濃度を求めて火災を判断し、更に、煙感知器に所定の
煙濃度閾値に対応した警報送信レベルを予め設定し、前
記受光信号が前記警報送信レベルを越えたときに前記受
信機に警報信号を送信する煙感知器の送信警報レベル補
正方法に於いて、前記煙感知器自身に受光信号と煙濃度の変換特性を設定
し、所定の零点補正周期毎に自己の零点を測定し、それ
まで測定した零点値と新たに測定した零点値との差分を
求め、 該差分が補正限界幅内であれば、零点値を新たに得られ
た値に補正すると共に試験発報点値を該差分だけ補正
し、 前記変換特性を、補正後の零点値と試験発報点値を結ん
だ変換特性に補正し、 更に、前記警報送信レベルを該差分だけ補正した値に再
設定し、 所定の零点補正周期より長い変換特性補正周期に達する
毎に、前記変換特性を、補正後の零点値と前記煙感知器
の試験発報で測定した試験発報点値を結んだ変換特性に
補正することを特徴とする煙感知器の送信警報レベル補
正方法。 7. A light receiving device according to a smoke density caused by a fire in a monitored area.
The signal is detected by the smoke detector, sent to the receiver, and received by the receiver.
From the received light signal according to the conversion characteristics between light signal and smoke density
Determine the fire by determining the smoke density, and furthermore,
Set the alarm transmission level corresponding to the smoke density threshold in advance and
When the received light signal exceeds the alarm transmission level,
In the method for correcting a transmission alarm level of a smoke detector that transmits an alarm signal to a transmitter, a conversion characteristic of a received light signal and smoke density is set in the smoke detector itself.
And measure its own zero at every predetermined zero correction cycle.
The difference between the zero value measured up to and the newly measured zero value
If the difference is within the correction limit width, a new zero point value can be obtained.
And the test point value is corrected by the difference.
The conversion characteristic is obtained by connecting the corrected zero point value and the test report point value.
The alarm transmission level is corrected to a value corrected by the difference.
Set and reach the conversion characteristic correction period longer than the predetermined zero point correction period
In each case, the conversion characteristic is calculated based on the corrected zero value and the smoke detector.
Conversion characteristics connecting the test report points measured in the test report
Compensating for the transmission alarm level of the smoke detector, characterized by correcting
Right way.
補正方法に於いて、 前記差分が補正限界幅を越える場合は零点値を現在値に
補正限界幅を付加した値に補正すると共に試験発報点値
も補正限界幅を付加した値に補正することを特徴とする
煙感知器の送信警報レベル補正方法。 8. The transmission alarm level of the smoke detector according to claim 7.
In the correction method, if the difference exceeds the correction limit width, the zero point value is set to the current value.
Correction to the value to which the correction limit width is added and the value of the test report point
Is also corrected to a value to which a correction limit width is added.
Smoke detector transmission alarm level correction method.
感知器の送信警報レベル補正方法に於いて、 前記煙感知器に設定する警報送信レベルは、火災警報を
行わせる火災警報信号を送信するための火災警報送信レ
ベル、注意表示警報を行わせる注意表示警報信号を送信
するための注意表示警報送信レベル、又は、防排煙等の
機器を連動制御させる連動信号を送信するための連動送
信レベルであることを特徴とする煙感知器の警報送信レ
ベル補正方法。 9. Smoke according to any one of claims 1 to 8
In the method for correcting the transmission alarm level of the detector, the alarm transmission level set for the smoke detector may be a fire alarm.
Fire alarm transmission signal to send a fire alarm signal
Sends a warning display alarm signal that triggers a bell and warning display alarm
Caution display warning transmission level, or smoke emission prevention
Linked transmission for transmitting a link signal that controls the devices in a linked manner
Signal level of the smoke detector.
Bell correction method.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7268128A JP3015720B2 (en) | 1995-10-17 | 1995-10-17 | Smoke detector alarm transmission level correction method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7268128A JP3015720B2 (en) | 1995-10-17 | 1995-10-17 | Smoke detector alarm transmission level correction method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH09115075A JPH09115075A (en) | 1997-05-02 |
| JP3015720B2 true JP3015720B2 (en) | 2000-03-06 |
Family
ID=17454279
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7268128A Expired - Fee Related JP3015720B2 (en) | 1995-10-17 | 1995-10-17 | Smoke detector alarm transmission level correction method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3015720B2 (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5352827B2 (en) * | 2009-03-31 | 2013-11-27 | 株式会社オーシーシー | Seafloor observation system |
| CN104933821B (en) * | 2015-06-15 | 2017-06-20 | 华南理工大学 | A kind of method of computing electric power line corridor mountain fire smokescope alarm threshold value |
| JP7033980B2 (en) * | 2018-03-28 | 2022-03-11 | 能美防災株式会社 | Smoke detector and smoke detection system |
| JP7309343B2 (en) * | 2018-10-31 | 2023-07-18 | ホーチキ株式会社 | Fire alarm equipment |
| CN113077615B (en) * | 2021-03-22 | 2022-09-23 | 杭州海康威视数字技术股份有限公司 | Alarm information processing method and device and electronic equipment |
-
1995
- 1995-10-17 JP JP7268128A patent/JP3015720B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH09115075A (en) | 1997-05-02 |
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