JPH09200227A - Flow rate monitoring device - Google Patents
Flow rate monitoring deviceInfo
- Publication number
- JPH09200227A JPH09200227A JP1020196A JP1020196A JPH09200227A JP H09200227 A JPH09200227 A JP H09200227A JP 1020196 A JP1020196 A JP 1020196A JP 1020196 A JP1020196 A JP 1020196A JP H09200227 A JPH09200227 A JP H09200227A
- Authority
- JP
- Japan
- Prior art keywords
- arrival time
- value
- cell
- identification number
- channel identification
- 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.)
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Links
Landscapes
- Data Exchanges In Wide-Area Networks (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、セルを用いた通信
制御装置等に利用する流量監視装置に関するものであ
る。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a flow rate monitoring device used for a communication control device using cells.
【０００２】[0002]
【従来の技術】従来この種の流量監視装置は、図３に示
すブロック図のように構成されている。図３において、
１は入力セルのチャンネル識別番号を分離する分離手
段、２はセルの到着時刻を計測する計測手段、３はチャ
ンネル識別番号毎にセル到着時刻の間隔を示す予め設定
された間隔規定値を記憶する第１の記憶手段、４は、前
回記憶した到着時刻を出力し、チャンネル識別番号毎に
計測手段２からの到着時刻を過去最新の到着時刻(以
下、過去最新時刻という)として記憶する第２の記憶手
段、５は、チャンネル識別番号毎の第１の記憶手段３の
間隔規定値と第２の記憶手段４の過去最新時刻とを加算
し、到着時刻の推定値を算出する加算手段、６は計測手
段２が計測する到着時刻と加算手段５が算出する推定値
との比較を行う比較手段である。2. Description of the Related Art A conventional flow rate monitor of this type is constructed as shown in the block diagram of FIG. In FIG.
Reference numeral 1 is a separating means for separating the channel identification numbers of input cells, 2 is a measuring means for measuring the arrival time of cells, and 3 is a preset interval defining value indicating the interval of cell arrival times for each channel identification number. The first storage unit 4 outputs the previously stored arrival time and stores the arrival time from the measuring unit 2 as the latest past arrival time (hereinafter referred to as the latest past time) for each channel identification number. The storage means 5 adds the interval specified value of the first storage means 3 and the latest latest time of the second storage means 4 for each channel identification number to calculate an estimated arrival time value. It is a comparing means for comparing the arrival time measured by the measuring means 2 and the estimated value calculated by the adding means 5.
【０００３】以上のように構成される流量監視装置は、
監視対象のセルが入力されると分離手段１によりセルの
チャンネル識別番号が分離され、さらに計測手段２によ
り入力されたセルの到着時刻が計測される。分離された
チャンネル識別番号が示す、第１の記憶手段３のチャン
ネル識別番号別に記憶されている間隔規定値が出力さ
れ、同様に第２の記憶手段４に記憶されているセル到着
の過去最新時刻が出力される。この間隔規定値と過去最
新時刻の各出力は、加算手段５に入力されて加算され到
着時刻の推定値として算出される。計測手段２の計測し
た到着時刻は、第２の記憶手段４に入力され前回記憶し
た過去最新時刻と置き換えられて、新たな過去最新時刻
としてチャンネル識別番号毎に記憶される。また、加算
手段５の算出した到着時刻の推定値と計測手段２の計測
した到着時刻が比較手段６に入力され、その比較結果に
より計測した到着時刻が推定値より小さい場合に、流量
監視情報として流量超過の警報を出力するように動作す
る。The flow rate monitoring device configured as described above is
When the cell to be monitored is input, the separating unit 1 separates the channel identification number of the cell, and the measuring unit 2 further measures the arrival time of the input cell. The interval prescribed value stored for each channel identification number of the first storage means 3 indicated by the separated channel identification number is output, and similarly, the latest latest cell arrival time stored in the second storage means 4 is also output. Is output. The output of the interval specified value and the latest latest time are input to the addition means 5 and added to be calculated as an estimated value of the arrival time. The arrival time measured by the measuring means 2 is replaced with the latest latest time stored in the second storage means 4 and stored last time, and is stored as a new latest latest time for each channel identification number. Further, when the estimated value of the arrival time calculated by the addition means 5 and the arrival time measured by the measurement means 2 are input to the comparison means 6 and the arrival time measured by the comparison result is smaller than the estimated value, the flow rate monitoring information is obtained. Operates to output an alarm for excess flow.
【０００４】なお、前記従来例のこの動作は監視対象の
セルが入力される毎に行われ、次のセルが入力されるま
での間には終了する。This operation of the conventional example is performed every time a cell to be monitored is input, and is completed before the next cell is input.
【０００５】[0005]
【発明が解決しようとする課題】しかしながら、このよ
うな構成の流量監視装置では、小さく簡易な機器構成で
装置を実現するためにセルの到着時刻の計測手段を巡回
カウンタで構成する場合に、巡回カウンタの周回に合わ
せて第２の記憶手段に記憶している過去最新時刻を補正
する必要があるため、多チャンネルを監視する機器構成
の実現が難しいという問題があった。However, in the flow rate monitoring device having such a configuration, when the cell arrival time measuring means is configured by a traveling counter in order to realize the device with a small and simple device configuration, Since it is necessary to correct the latest latest time stored in the second storage means in accordance with the circulation of the counter, there is a problem that it is difficult to realize a device configuration for monitoring multiple channels.
【０００６】本発明は、前記従来技術の問題を解決する
ものであり、多チャンネルで入力される各セルを小さく
簡易な機器構成でその流量を監視することができる優れ
た流量監視装置を提供することを目的とする。The present invention solves the above-mentioned problems of the prior art, and provides an excellent flow rate monitoring device capable of monitoring the flow rate of each cell input in multiple channels with a small and simple device configuration. The purpose is to
【０００７】[0007]
【課題を解決するための手段】この目的を達成するため
に、本発明に係る流量監視装置は、入力セルのチャンネ
ル識別番号の分離手段と、計数手段とそのカウント値よ
りセルのチャンネル識別番号の加減算を行う演算手段と
から成るセルの到着時刻の計測手段と、予め設定される
セルの到着時刻の間隔を示す間隔規定値をチャンネル識
別番号別に記憶する第１の記憶手段と、チャンネル識別
番号別に過去最新時刻を記憶する第２の記憶手段と、チ
ャンネル識別番号の間隔規定値と過去最新時刻からセル
の到着時刻の推定値を算出する加算手段と、セルの到着
時刻と推定値との比較を行う比較手段と、第２の記憶手
段の記憶領域を示すチャンネル識別番号かカウント値を
選択する第１の選択手段と、演算手段の結果が零となる
記憶領域が示す第２の記憶手段に記憶する過去最新時刻
に、計数手段のカウント値の周回による補正を行う補正
手段と、計測手段の出力する到着時刻と補正手段の出力
を選択する第２の選択手段を備える。In order to achieve this object, a flow rate monitoring device according to the present invention comprises a channel identification number separating means for an input cell, a counting means and a channel identification number for the cell based on the count value. Cell arrival time measuring means including addition and subtraction calculating means, first storage means for storing a preset interval value indicating a preset cell arrival time interval for each channel identification number, and each channel identification number The second storage means for storing the latest past time, the adding means for calculating the estimated value of the cell arrival time from the specified interval value of the channel identification number and the latest past time, and the comparison between the arrival time of the cell and the estimated value are compared. Comparing means for performing, first selecting means for selecting a channel identification number or a count value indicating the storage area of the second storage means, and storage area where the result of the calculating means is zero In the past latest time stored in the storage means comprises a correction means for correcting by circulation of the count value of the counting means, a second selecting means for selecting the output of the output arrival time correction means measuring means.
【０００８】また、計測手段の出力する到着時刻と加算
手段の出力する推定値を選択する第３の選択手段と、予
め設定される前記セルの遅延揺らぎ時間の許容値を記憶
する第３の記憶手段と、計測手段の到着時刻と加算手段
の推定値との減算を行う減算手段と、前記比較手段に代
えて減算手段の結果と第３の記憶手段の許容値を比較す
る比較手段を備えるように構成したものである。Further, third selecting means for selecting an arrival time output by the measuring means and an estimated value output by the adding means, and a third memory for storing a preset allowable value of the delay fluctuation time of the cell. Means, subtraction means for subtracting the arrival time of the measurement means and the estimated value of the addition means, and a comparison means for comparing the result of the subtraction means with the allowable value of the third storage means instead of the comparison means. It is configured in.
【０００９】前記構成によれば、カウント値の更新によ
り指定される第２の記憶手段の記憶する過去最新時刻
を、計数手段のカウント値の周回による最大値から０に
設定し直された後に補正を行い、多チャンネルの監視で
あっても小さな機器構成でセルの到着間隔を監視でき
る。According to the above construction, the latest latest time stored in the second storage means specified by the update of the count value is corrected after being reset to 0 from the maximum value of the count value of the counting means by the circulation. The cell arrival interval can be monitored with a small device configuration even when monitoring multiple channels.
【００１０】また、セルの到着時刻と到着時刻の推定値
との差を求めて、遅延揺らぎ時間の許容値と比較するこ
とで遅延揺らぎ時間に応じた流量を監視することができ
る。Further, the flow rate corresponding to the delay fluctuation time can be monitored by obtaining the difference between the arrival time of the cell and the estimated value of the arrival time and comparing it with the allowable value of the delay fluctuation time.
【００１１】[0011]
【発明の実施の形態】以下、図面を参照して本発明の実
施の形態を詳細に説明する。図１は本発明の実施の形態
１における流量監視装置の構成を示すブロック図であ
る。また、前記従来例の図３で説明した同一の作用効果
のものには同一の符号を付す。BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. 1 is a block diagram showing a configuration of a flow rate monitoring device according to a first embodiment of the present invention. Further, the same reference numerals are given to those having the same action and effect described in FIG.
【００１２】図１において、１は分離手段、２は計測手
段、３は第１の記憶手段、５は加算手段、６は比較手
段、10は計数手段としてカウント値が０から最大値まで
を繰り返してカウントを行う巡回カウンタ、11は演算手
段として巡回カウンタ10のカウント値と分離手段１で分
離したチャンネル識別番号との減算を行う減算器、12は
チャンネル識別番号とカウント値の選択をする第１の選
択手段、13は計測手段２で計測したセルの到着時刻と後
述する補正手段の出力を選択する第２の選択手段、14
は、第１の選択手段12からの出力で指定される記憶領域
の読み出し、および第２の選択手段13からの出力を第１
の選択手段12の出力が指定する記憶領域へ書き込みを行
い、また巡回カウンタ10のカウント値の最大値から最大
値×−１までの範囲の値を記憶できる第２の記憶手段、
15は、カウント値の指定する第２の記憶手段14の記憶領
域から出力される値を判定し、その補正を行う補正手段
である。In FIG. 1, 1 is a separating means, 2 is a measuring means, 3 is a first storing means, 5 is an adding means, 6 is a comparing means, 10 is a counting means, and the count value is repeated from 0 to the maximum value. A counting counter for counting by a subtracter, 11 for subtracting the count value of the circulating counter 10 as a calculation means and the channel identification number separated by the separating means 1, and 12 for selecting a channel identification number and a count value Selection means, 13 is second selection means for selecting the arrival time of the cell measured by the measurement means 2 and the output of the correction means described later, 14
Reads the storage area specified by the output from the first selecting means 12 and outputs the output from the second selecting means 13 as the first
Second storage means capable of writing to the storage area designated by the output of the selection means 12 and storing a value in the range from the maximum value of the cyclic counter 10 to the maximum value × −1.
Reference numeral 15 is a correction unit that determines the value output from the storage area of the second storage unit 14 designated by the count value and corrects it.
【００１３】また、前記従来例と同様に監視対象のセル
が入力される毎に以下の動作が行われ、次のセルが入力
されるまでの間にはその動作は終了する。巡回カウンタ
10はセル到着間隔の計測時間の単位でカウント値を１ず
つカウントアップを行う。Further, as in the conventional example, the following operation is performed every time a cell to be monitored is input, and the operation is completed by the time the next cell is input. Patrol counter
10 counts up the count value by 1 in units of the cell arrival interval measurement time.
【００１４】前記のように構成される本実施の形態１に
おいて、その動作を説明する。まず、第２の記憶手段14
には第１の選択手段12を経て巡回カウンタ10からのカウ
ント値が入力される。第２の記憶手段14は入力されたカ
ウント値により指定される記憶領域に記憶された値を補
正手段15に出力する。補正手段15は、カウント値の指定
する第２の記憶手段14の出力値が、０以上または０未満
の判定を行う。さらにその出力値が０以上であるとき巡
回カウンタ10の最大値を減算した値を、また０未満であ
るとき第２の記憶手段14に記憶できる最小値(例えば、
巡回カウンタ10のカウントする−最大値)を第２の選択
手段13に出力する。第２の選択手段13からの出力は前記
カウント値の指定する第２の記憶手段14の記憶領域に再
び記憶される。以上の動作を巡回カウンタ10のカウント
値が周回する度に順次繰り返す。The operation of the first embodiment configured as described above will be described. First, the second storage means 14
A count value from the cyclic counter 10 is input to the via the first selecting means 12. The second storage means 14 outputs the value stored in the storage area designated by the input count value to the correction means 15. The correction unit 15 determines whether the output value of the second storage unit 14 designated by the count value is 0 or more or less than 0. Further, when the output value is 0 or more, the value obtained by subtracting the maximum value of the cyclic counter 10 is subtracted, and when it is less than 0, the minimum value that can be stored in the second storage means 14 (for example,
The maximum value (counted by the cyclic counter 10) is output to the second selecting means 13. The output from the second selection means 13 is stored again in the storage area of the second storage means 14 designated by the count value. The above operation is sequentially repeated each time the count value of the cyclic counter 10 circulates.
【００１５】次に、巡回カウンタ10のカウント値が周回
するまでの間の動作において、監視対象のセルが入力さ
れて分離手段１により、そのセルのチャンネル識別番号
が分離される。従来例と同様に、分離されたチャンネル
識別番号の指定する第１の記憶手段３の間隔規定値と第
２の記憶手段14の過去最新時刻とを加算手段５で加算し
到着時刻の推定値を求める。また、そのセルの到着時刻
は計測手段２にて計測が行われており、前記の推定値と
比較手段６で比較されて流量監視情報として出力され
る。Next, in the operation until the count value of the cyclic counter 10 circulates, the cell to be monitored is input, and the separating means 1 separates the channel identification number of the cell. Similar to the conventional example, the interval defining value of the first storage means 3 designated by the separated channel identification number and the latest past time of the second storage means 14 are added by the adding means 5 to obtain an estimated arrival time. Ask. The arrival time of the cell is measured by the measuring unit 2, and is compared with the estimated value by the comparing unit 6 and output as flow rate monitoring information.
【００１６】また、この計測手段２から出力される到着
時刻は、各チャンネル識別番号毎に到着時刻が最大値か
ら０に設定し直され、タイミングが重ならないように、
巡回カウンタ10のカウント値からチャンネル識別番号を
減算したものである。この到着時刻は第２の選択手段13
を経て、チャンネル識別番号の示す第２の記憶手段14の
記憶領域に新たな過去最新時刻として記憶される。The arrival time output from the measuring means 2 is reset from the maximum value to 0 for each channel identification number so that the timings do not overlap.
The channel identification number is subtracted from the count value of the cyclic counter 10. This arrival time is the second selection means 13
Then, the new past latest time is stored in the storage area of the second storage means 14 indicated by the channel identification number.
【００１７】さらに巡回カウンタ10のカウント値が周回
して最大値を超えて０からカウントを始め、巡回カウン
タ10のカウント値が示す値がチャンネル識別番号と一致
したとき、その値が指定する第２の記憶手段14の記憶す
る過去最新時刻を補正手段15により補正する。これ以降
の入力セルにより計測される到着時刻は、前回に記憶さ
れた過去最新時刻より小さくなるためにその補正が必要
となる。Further, when the count value of the cyclic counter 10 circulates and exceeds the maximum value and starts counting from 0, and when the value indicated by the cyclic counter 10 matches the channel identification number, the second value designated by that value is designated. The latest latest time stored in the storage means 14 is corrected by the correction means 15. Since the arrival time measured by the subsequent input cells is smaller than the latest latest time stored in the last time, the arrival time needs to be corrected.
【００１８】補正手段15により前回の過去最新時刻から
巡回カウンタ10の最大値を減算し、補正した値を第２の
選択手段13を経て、第２の記憶手段14に過去最新時刻と
して記憶する。次の入力セルで計測される同じチャンネ
ル識別番号の到着時刻は、巡回カウンタ10の０からカウ
ントした時刻となる。また、補正により記憶されている
過去最新時刻は、前回の到着時刻から巡回カウンタ10の
最大値を減算して、補正前の過去最新時刻から最大値ま
での時刻を示すマイナス値であり、間隔規定値との加算
により到着時刻の推定値を得ることができる。The correction means 15 subtracts the maximum value of the cycle counter 10 from the latest past latest time, and the corrected value is stored in the second storage means 14 as the latest latest time through the second selecting means 13. The arrival time of the same channel identification number measured in the next input cell is the time counted from 0 of the cyclic counter 10. Further, the latest past time stored by the correction is a negative value indicating the time from the latest past time before correction to the maximum value by subtracting the maximum value of the patrol counter 10 from the previous arrival time, and the interval specification The estimated value of the arrival time can be obtained by addition with the value.
【００１９】このように巡回カウンタ10のカウント値が
最大値から０に設定しなおされても、セルの到着時刻を
補正することができ、多チャンネルの監視であっても小
さな機器構成で入力セルの流量を監視できる。As described above, even if the count value of the cyclic counter 10 is reset from the maximum value to 0, the cell arrival time can be corrected, and even in the case of multi-channel monitoring, the input cell can be configured with a small device configuration. The flow rate of can be monitored.
【００２０】また、本実施の形態１では演算手段を減算
器11として、巡回カウンタ10のカウント値とチャンネル
識別番号の減算を行ったが、加算器に代えても同様の動
作を行うことができる。In the first embodiment, the subtractor 11 is used as the arithmetic means to subtract the count value of the cyclic counter 10 and the channel identification number. However, the same operation can be performed by using the adder instead. .
【００２１】図２は本発明の実施の形態２における流量
監視装置の構成を示すブロック図である。また、前記実
施の形態１の図１において説明した同一の作用効果のも
のには同一の符号を付す。図２において、１は分離手
段、２は計測手段、３は第１の記憶手段、５は加算手
段、10は巡回カウンタ、11は減算器、12は第１の選択手
段、13は第２の選択手段、14は第２の記憶手段、15は補
正手段、16は計測手段２の計測した到着時刻と加算手段
５の算出した推定値を選択する第３の選択手段、17はチ
ャンネル識別番号別に予め設定された遅延揺らぎ時間の
許容値を記憶する第３の記憶手段、18は計測手段２の計
測した到着時刻と加算手段５の算出した推定値の減算を
行う減算手段、19は第３の記憶手段17の出力する許容値
と減算手段18の出力値を比較する比較手段である。FIG. 2 is a block diagram showing the structure of a flow rate monitoring device according to the second embodiment of the present invention. Moreover, the same reference numerals are given to those having the same operation and effect described in FIG. 1 of the first embodiment. In FIG. 2, 1 is a separating means, 2 is a measuring means, 3 is a first storing means, 5 is an adding means, 10 is a cyclic counter, 11 is a subtractor, 12 is a first selecting means, and 13 is a second selecting means. Selecting means, 14 is second storing means, 15 is correcting means, 16 is third selecting means for selecting the arrival time measured by the measuring means 2 and the estimated value calculated by the adding means 5, and 17 is for each channel identification number Third storage means for storing a preset allowable value of the delay fluctuation time, 18 is subtraction means for subtracting the arrival time measured by the measurement means 2 and the estimated value calculated by the addition means 5, and 19 is a third storage means. The comparing means compares the allowable value output from the storage means 17 with the output value from the subtracting means 18.
【００２２】本実施の形態２において、前記実施の形態
１の構成に第３の選択手段16，第３の記憶手段17，減算
手段18，比較手段19を設けたものであり、前記実施の形
態１と同様の動作が監視対象のセルが入力される毎に行
われ、次のセルが入力されるまでの間にはその動作は終
了する。また、加算手段５から出力される到着時刻の推
定値を求めるまでの動作は同様であるためその説明は省
略する。In the second embodiment, the third selecting means 16, the third storing means 17, the subtracting means 18, and the comparing means 19 are provided in the configuration of the first embodiment, and The same operation as 1 is performed every time a cell to be monitored is input, and the operation ends until the next cell is input. Further, the operation until obtaining the estimated value of the arrival time output from the adding means 5 is the same, so that the description thereof will be omitted.
【００２３】減算手段18は、加算手段５の算出した推定
値と計測手段２の計測した到着時刻の減算をして、到着
時刻の差を求め比較手段19に出力する。比較手段19は、
第３の記憶手段17に記憶している許容値と減算手段18の
算出した到着時刻の差を比較し、その結果がセルの到着
間隔が少なくなる方向で許容値を超えている場合に、流
量監視情報として流量超過の警報を出力する。The subtracting means 18 subtracts the estimated value calculated by the adding means 5 and the arrival time measured by the measuring means 2 to obtain the difference between the arrival times and outputs it to the comparing means 19. The comparison means 19 is
When the difference between the allowable value stored in the third storage means 17 and the arrival time calculated by the subtracting means 18 is compared, and the result exceeds the allowable value in the direction in which the cell arrival interval decreases, the flow rate is An alarm for excess flow is output as monitoring information.
【００２４】前記の比較手段19の結果が、セルの到着間
隔が増える方向で許容値を超えている場合は、第３の選
択手段16により計測された到着時間を選択して第２の選
択手段13に出力する。また、セルの到着間隔が増える方
向で許容値を超えていない場合には、第３の選択手段16
により加算手段５の算出した到着時刻の推定値を選択し
て第２の選択手段13に出力する。これらの出力は前記実
施の形態１と同じように第２の選択手段13を経て第２に
記憶手段14に記憶される。When the result of the comparison means 19 exceeds the allowable value in the direction in which the cell arrival interval increases, the arrival time measured by the third selection means 16 is selected and the second selection means is selected. Output to 13. If the cell arrival interval does not exceed the allowable value in the increasing direction, the third selecting means 16
Then, the estimated value of the arrival time calculated by the adding means 5 is selected and output to the second selecting means 13. These outputs are secondly stored in the storage means 14 via the second selection means 13 as in the first embodiment.
【００２５】以上のことから、前記実施の形態１の効果
に加え、セルの到着時刻と推定値との差を求めて、遅延
揺らぎ時間の許容値と比較することで、遅延揺らぎ時間
を考慮してセルの到着時刻を監視することができ、多チ
ャンネルの監視であっても小さな機器構成で入力セルの
流量を監視できる。From the above, in addition to the effect of the first embodiment, the delay fluctuation time is considered by calculating the difference between the cell arrival time and the estimated value and comparing it with the allowable value of the delay fluctuation time. It is possible to monitor the arrival time of cells and monitor the flow rate of input cells with a small device configuration even in the case of multi-channel monitoring.
【００２６】[0026]
【発明の効果】以上説明したように、本発明によれば、
カウント値が最大値から０に設定しなおされても、カウ
ント値の更新により指定される第２の記憶手段に記憶さ
れた過去最新の到着時刻を補正することで、多チャンネ
ルの監視であっても小さな機器構成で入力セルの流量を
監視できる。As described above, according to the present invention,
Even if the count value is reset from the maximum value to 0, the latest latest arrival time stored in the second storage means designated by the update of the count value is corrected, so that the multi-channel monitoring can be performed. Can monitor the flow rate of the input cell with a small device configuration.
【００２７】また、セルの到着時刻と到着時刻の推定値
との差を求めて、遅延揺らぎ時間の許容値と比較するこ
とで遅延揺らぎ時間に応じた流量監視を行い、多チャン
ネルの監視であっても小さな機器構成で入力セルの流量
を監視することができるという効果を奏する。Further, the difference between the arrival time of the cell and the estimated value of the arrival time is obtained and compared with the allowable value of the delay fluctuation time to monitor the flow rate in accordance with the delay fluctuation time, which is multi-channel monitoring. However, the flow rate of the input cell can be monitored with a small device configuration.
【図１】本発明の実施の形態１における流量監視装置の
構成を示すブロック図である。FIG. 1 is a block diagram showing a configuration of a flow rate monitoring device according to a first embodiment of the present invention.
【図２】本発明の実施の形態２における流量監視装置の
構成を示すブロック図である。FIG. 2 is a block diagram showing a configuration of a flow rate monitoring device according to a second embodiment of the present invention.
【図３】従来の流量監視装置の構成を示すブロック図で
ある。FIG. 3 is a block diagram showing a configuration of a conventional flow rate monitoring device.
１…分離手段、 ２…計測手段、 ３…第１の記憶手
段、 ４，14…第２の記憶手段、 ５…加算手段、
６，19…比較手段、 10…巡回カウンタ、 11…減算
器、 12…第１の選択手段、 13…第２の選択手段、
15…補正手段、 16…第３の選択手段、 17…第３の記
憶手段、 18…減算手段。1 ... Separation Means, 2 ... Measuring Means, 3 ... First Storage Means, 4, 14 ... Second Storage Means, 5 ... Addition Means,
6, 19 ... Comparison means, 10 ... Cyclic counter, 11 ... Subtractor, 12 ... First selection means, 13 ... Second selection means,
15 ... correction means, 16 ... third selection means, 17 ... third storage means, 18 ... subtraction means.
Claims (2)
段と、前記セルの到着時刻の計測手段と、予め設定され
る前記セルの到着時刻の間隔を示す間隔規定値を前記チ
ャンネル識別番号別に記憶する第１の記憶手段と、前記
チャンネル識別番号別に過去最新の到着時刻を記憶する
第２の記憶手段と、当該チャンネル識別番号の前記間隔
規定値と前記過去最新の到着時刻から前記セルの到着時
刻の推定値を算出する加算手段と、前記セルの到着時刻
と前記推定値との比較を行う比較手段とを備え、前記セ
ルの到着時刻が前記間隔規定値を満たすことを監視する
流量監視装置であって、 前記計測手段は計数手段と、該計数手段のカウント値よ
り到着セルのチャンネル識別番号の加減算を行う演算手
段とから成り、前記第２の記憶手段の記憶領域を示す前
記チャンネル識別番号か前記カウント値を選択する第１
の選択手段と、前記演算手段の結果が零となる記憶領域
が示す前記第２の記憶手段に記憶する過去最新の到着時
刻に、前記計数手段のカウント値の周回による補正を行
う補正手段と、前記計測手段の出力する到着時刻と前記
補正手段の出力を選択する第２の選択手段を設けたこと
を特徴とする流量監視装置。1. A means for separating a channel identification number of an input cell, a means for measuring an arrival time of the cell, and a preset interval value indicating a preset time interval of the arrival time of the cell are stored for each of the channel identification numbers. First storage means, second storage means for storing the latest latest arrival time for each channel identification number, and the interval specified value of the channel identification number and the latest arrival time of the past from the arrival time of the cell. A flow rate monitoring device that includes an adding unit that calculates an estimated value and a comparing unit that compares the arrival time of the cell with the estimated value, and that monitors whether the arrival time of the cell satisfies the interval specified value. The measuring means includes a counting means and a computing means for adding / subtracting the channel identification number of the arriving cell from the count value of the counting means, and stores the storage area of the second storage means. The selecting said count value or to the channel identification number 1
Selection means, and correction means for correcting the count value of the counting means by the circulation at the latest latest arrival time stored in the second storage means indicated by the storage area where the result of the calculation means is zero, A flow rate monitoring device comprising a second selecting unit for selecting an arrival time output by the measuring unit and an output of the correcting unit.
段と、前記セルの到着時刻の計測手段と、予め設定され
る前記セルの到着時刻の間隔を示す間隔規定値を前記チ
ャンネル識別番号別に記憶する第１の記憶手段と、前記
チャンネル識別番号別に過去最新の到着時刻を記憶する
第２の記憶手段と、当該チャンネル識別番号の前記間隔
規定値と前記過去最新の到着時刻から前記セルの到着時
刻の推定値を算出する加算手段とを備え、前記セルの到
着時刻が前記間隔規定値を満たすことを監視する流量監
視装置であって、 前記計測手段は計数手段と、該計数手段のカウント値よ
り到着セルのチャンネル識別番号の加減算を行う演算手
段とから成り、前記第２の記憶手段の記憶領域を示す前
記チャンネル識別番号か前記カウント値を選択する第１
の選択手段と、前記演算手段の結果が零となる記憶領域
が示す前記第２の記憶手段に記憶する過去最新の到着時
刻に、前記計数手段のカウント値の周回による補正を行
う補正手段と、前記計測手段の出力する到着時刻と前記
加算手段の出力する推定値を選択する第３の選択手段
と、該第３の選択手段の出力と前記補正手段の出力を選
択する第２の選択手段と、予め設定される前記セルの遅
延揺らぎ時間の許容値を記憶する第３の記憶手段と、前
記計測手段の到着時刻と前記加算手段の推定値との減算
を行う減算手段と、該減算手段の結果と前記第３の記憶
手段の許容値を比較する比較手段とを設けたことを特徴
とする流量監視装置。2. An input cell channel identification number separating means, an arrival time measuring means of the cell, and a preset interval value indicating a preset arrival time interval of the cell are stored for each channel identification number. First storage means, second storage means for storing the latest latest arrival time for each channel identification number, and the interval specified value of the channel identification number and the latest arrival time of the past from the arrival time of the cell. A flow rate monitoring device, comprising: an adding unit for calculating an estimated value, for monitoring that the arrival time of the cell satisfies the interval prescribed value, wherein the measuring unit arrives from the counting unit and the count value of the counting unit. A first means for selecting the channel identification number or the count value indicating a storage area of the second storage means
Selection means, and correction means for correcting the count value of the counting means by the circulation at the latest latest arrival time stored in the second storage means indicated by the storage area where the result of the calculation means is zero, Third selecting means for selecting an arrival time output by the measuring means and an estimated value output by the adding means; and second selecting means for selecting an output of the third selecting means and an output of the correcting means. Third storage means for storing a preset allowable value of the delay fluctuation time of the cell, subtraction means for subtracting the arrival time of the measurement means and the estimated value of the addition means, and the subtraction means A flow rate monitoring device comprising: a comparison means for comparing the result with the allowable value of the third storage means.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP01020196A JP3645635B2 (en) | 1996-01-24 | 1996-01-24 | Flow monitoring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP01020196A JP3645635B2 (en) | 1996-01-24 | 1996-01-24 | Flow monitoring device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH09200227A true JPH09200227A (en) | 1997-07-31 |
| JP3645635B2 JP3645635B2 (en) | 2005-05-11 |
Family
ID=11743666
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP01020196A Expired - Fee Related JP3645635B2 (en) | 1996-01-24 | 1996-01-24 | Flow monitoring device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3645635B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6318181B1 (en) | 1998-07-29 | 2001-11-20 | Smc Kabushiki Kaisha | Multi-channel pressure sensor controller |
-
1996
- 1996-01-24 JP JP01020196A patent/JP3645635B2/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6318181B1 (en) | 1998-07-29 | 2001-11-20 | Smc Kabushiki Kaisha | Multi-channel pressure sensor controller |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3645635B2 (en) | 2005-05-11 |
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