JPS5999315A - Measurement stabilizing method - Google Patents

Measurement stabilizing method

Info

Publication number
JPS5999315A
JPS5999315A JP21074882A JP21074882A JPS5999315A JP S5999315 A JPS5999315 A JP S5999315A JP 21074882 A JP21074882 A JP 21074882A JP 21074882 A JP21074882 A JP 21074882A JP S5999315 A JPS5999315 A JP S5999315A
Authority
JP
Japan
Prior art keywords
output count
frequency
count
difference
output
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.)
Granted
Application number
JP21074882A
Other languages
Japanese (ja)
Other versions
JPH0215004B2 (en
Inventor
Kunio Mori
邦雄 森
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Teraoka Seiko Co Ltd
Original Assignee
Teraoka Seiko Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Teraoka Seiko Co Ltd filed Critical Teraoka Seiko Co Ltd
Priority to JP21074882A priority Critical patent/JPS5999315A/en
Publication of JPS5999315A publication Critical patent/JPS5999315A/en
Publication of JPH0215004B2 publication Critical patent/JPH0215004B2/ja
Granted legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01G—WEIGHING
    • G01G23/00—Auxiliary devices for weighing apparatus
    • G01G23/18—Indicating devices, e.g. for remote indication; Recording devices; Scales, e.g. graduated
    • G01G23/36—Indicating the weight by electrical means, e.g. using photoelectric cells
    • G01G23/37—Indicating the weight by electrical means, e.g. using photoelectric cells involving digital counting
    • G01G23/3707—Indicating the weight by electrical means, e.g. using photoelectric cells involving digital counting using a microprocessor
    • G01G23/3714—Indicating the weight by electrical means, e.g. using photoelectric cells involving digital counting using a microprocessor with feedback means

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Hardware Design (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Indication And Recording Devices For Special Purposes And Tariff Metering Devices (AREA)
  • Optical Transform (AREA)
  • Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
  • Measuring Frequencies, Analyzing Spectra (AREA)

Abstract

PURPOSE:To prevent flickering of display due to vibrations and noises, by setting an output count to a new reference output count when the frequency of the output count of the AD converter of an electronic scale reaches a reference frequency, and displaying the result. CONSTITUTION:An output count DN, which is generated in a measuring mechanism 1, is made to be the first reference output count DD. A count difference A between the next output count DN and the reference output count DD is computed. For example, when the difference A is 1, the reference frequency is 8. When A is 2, the reference frequency is 4. When A is 3, the reference frequency is 2. In this way, the reference count DD is replaced by the output count DN. An X mark indicates the output count DN, and a O mark indicates the reference output count DD. In the frequency range =10-17, the difference A=+1 continues 8 times and the reference frequency becomes 8. At the frequency =18, the reference output count becomes DD=30,000+1.

Description

【発明の詳細な説明】 本発明は電子秤における計量安定方法に関する。[Detailed description of the invention] The present invention relates to a weighing stabilization method in an electronic scale.

Ｉｆｉ論電子秤を第５図によシ説明すれば、計量機構（
１）はロードセルの枠体にヒズミゲージを貼付し該ゲー
ジをホイートストンブリッジに構成し重量に比例したヒ
ズミ量を電圧にて出力する。該重量信号は一般的に数ｍ
Ｖであるので増幅器（２）にて増幅し、フィルター（３
）にて雑音成分を除去すると共に、Ａ／Ｄ変換器（４）
にてデジタル化し、所定時間毎にデジタルカウントを出
力する。該へも変換器（４）の出力カウントを中央処理
装置（ＣＰＵ）にて演算処理し、表示用レジスター（５
）にて表示用データを機械的振動即ち建物の固有振動な
どが計量機構（１）に作用して重量信号に混ったシする
と共に、電気的雑音即ちハム雑音、電子部品の発する雑
音をフィルター（３）で完全に除くことができない。If you explain the Ifi theory electronic scale with reference to Figure 5, the weighing mechanism (
In 1), a strain gauge is attached to the frame of the load cell, and the gauge is configured as a Wheatstone bridge, and the strain proportional to the weight is output as a voltage. The weight signal is generally several meters
Since it is V, it is amplified by the amplifier (2), and the filter (3)
) to remove noise components, and the A/D converter (4)
digitizes the data and outputs a digital count at predetermined intervals. The output count of the converter (4) is processed by the central processing unit (CPU) and displayed in the display register (5).
), the display data is filtered to filter out mechanical vibrations, such as the natural vibrations of the building, that act on the weighing mechanism (1) and mix with the weight signal, as well as electrical noise, such as hum noise, and noise generated by electronic components. (3) cannot be completely eliminated.

このような振動、雑音があると表示の下の方の桁が常に
変化してチラッキとなシ、高精度の電子秤程その影響が
大きい。When such vibrations and noises occur, the lower digits of the display constantly change and flicker, and the higher the precision of the electronic scale, the greater the effect.

本発明は一上記従来欠点を解消する為になされたもので
その目的とする処は、振動、雑音によって生じる表示の
チラッキを防止する計量安定方法を提供し、高精度の電
子秤においてもチラッキを無くすことにある。The present invention has been made in order to eliminate the above-mentioned conventional drawbacks, and its purpose is to provide a weighing stabilization method that prevents display flickering caused by vibration and noise, and to prevent flickering even in high-precision electronic scales. It lies in eliminating it.

Ｗ「かる本発明の計量安定方法は、電子秤の４５袈換器
の出力カウントを中央処理装置に基準出力カウントとし
て設定し表示すると共に、予め基準出力カウントに対す
る出力カウントの差に対応する出力カウントの基＄度数
を設定し、上記へ６変換器の出力カウントとその度数を
読取って、該出力カウントの度数が基準度数に達した時
に該出力カウントを新たな基準出力カウントに設定し表
示することを特徴とする。The weighing stabilization method of the present invention sets and displays the output count of the 45 exchanger of the electronic scale as the reference output count in the central processing unit, and also sets the output count corresponding to the difference between the output count and the reference output count in advance. Set the base $ frequency, read the output count of the 6 converter and its frequency above, and when the frequency of the output count reaches the reference frequency, set the output count as a new reference output count and display it. It is characterized by

Ｗ［かる本発明の計量安定方法を実施する電子秤は第２
図に示す如く第５図の従来秤にメモリー（７）を設けた
もので、メモリー（７）は基準出力カウントに対する出
力カウントの差に応じて予め出力カウントの基準度数を
設定したものである。尚、実施例においては度数を数え
るカウンター（ｅＴＲ）は中央処理装置（ＣＰＬＪ）に
内蔵せるものとするが別体でもよい。又表示器（６）の
表示は基準出力カウントに対応して行なわれるようにな
っている。W[The electronic scale implementing the weighing stabilization method of the present invention is
As shown in the figure, the conventional scale of FIG. 5 is provided with a memory (7), and the memory (7) has a reference frequency of the output count set in advance according to the difference between the output count and the reference output count. In the embodiment, the counter (eTR) for counting the frequency is built into the central processing unit (CPLJ), but it may be a separate unit. Further, the display on the display (6) is made in accordance with the reference output count.

本発明の計量安定方法の実施例を第１図にょシ説明すれ
ば、先ず被計量物を計量機構（りに戟水するαＱと共に
、度数カウンター（ＣＴＲ）をクリアするα）。To explain the embodiment of the weighing stabilization method of the present invention as shown in FIG. 1, first, the object to be weighed is washed with water by the weighing mechanism (αQ for shaking the object, and α for clearing the frequency counter (CTR)).

計量機構（１）では重量が減衰振動にょシ１つの測定値
に収束し最初の出力カラン）（ＤＮ）を発生し、該出力
カラン）（ＤＮ）を採集して最初の基準出力カウント（
ＤＤ）とする（６）。上記出力カラン）　（ＤＮ）を記
憶レジスター（Ｒ１）に記憶する（ｌｉと共に、次の出
力カウント（ＤＮ）を採集して＜１４１、該出力カウン
ト（ＤＮ）と基準出力カウント（ＤＤ）が一致するかを
判別しくト）、一致する場合は新たに次の出力カウント
を採集するようにするα→。In the weighing mechanism (1), the weight of the damped vibration converges to a single measurement value, generates the first output count (DN), collects the output count (DN), and generates the first reference output count (
DD) (6). The above output count (DN) is stored in the storage register (R1) (with li, the next output count (DN) is collected and <141, and the output count (DN) and the reference output count (DD) match. If they match, a new output count will be collected.

基準出力カウント（ＤＤ）と出力カウント（ＤＮ）が一
致しない場合は出力カラン）（ＤＮ）が基準出力カラン
）（ＤＤ）に対して正か負かを判断するαＱ０符号記憶
レジスター（Ｐｏ１ａｒｉｔｙ　Ｆｌａｇ以下Ｐ、Ｆと
する）は（ＤＮ−ＤＤ）の正負を記１ｈするもので、Ｐ
Ｆ＝１を正、ＰＦ＝０を負とする。If the standard output count (DD) and output count (DN) do not match, the αQ0 sign storage register (P below Polarity Flag) is used to judge whether the output count (DN) is positive or negative with respect to the standard output count (DD). , F) indicates the positive and negative of (DN-DD), and P
Let F=1 be positive and PF=0 be negative.

上記差（ＤＮ−１）Ｄ）が負である時（ＰＦ＝０）は、
既に記憶されている符号記憶レジスター（ＰＦ）の符号
と比較し１．１’ｌ）、ＰＦ％ｘの時には工程＠に至る
。ＰＦ＝１の時には新たにＰＦ＝＝Ｏを記憶させてＣ１
ｅ９カウンター（ＣＴＲ）をクリアしα転工程（ト）に
至る。When the above difference (DN-1)D) is negative (PF=0),
When the code is compared with the already stored code in the code storage register (PF) (1.1'l) and PF%x, step @ is reached. When PF=1, PF==O is newly memorized and C1
Clear the e9 counter (CTR) and reach the α-turning process (g).

上記差（１）Ｎ−ＤＤ）が正の時（ＰＦ’＝１）は、既
に記憶されている符号記憶レジスター（ＰＦ）と比較し
［、ＰＦ＝１の時には工程（ロ）に至る。　ＰＦ強１０
時には新たにＰＦ＝１を記憶させてＱす、度数カウンタ
ー（ＣＴＲ）をクリアしくイ）、工程（ハ）に至る。When the difference (1) N-DD) is positive (PF'=1), it is compared with the already stored code storage register (PF), and when PF=1, step (b) is reached. PF strong 10
Sometimes, PF = 1 is newly memorized and the frequency counter (CTR) is cleared (a), leading to step (c).

に）工程は基準出力カウント（ＤＤ）と出力カウント（
ＤＮ）のカウント差囚を奔出するものである。) The process consists of standard output count (DD) and output count (
This is to release the count difference prisoners of DN).

Ｒ４（ハ）（ハ）は夫々カウント差（４）が１．２．３
の何れかもしくは３を超えるものかを判断するもので、
３を超える場合は該出力カウントで記憶レジスター（Ｒ
１）を入れ換える（口）。R4 (c) (c) has a count difference (4) of 1.2.3 respectively.
This is to judge whether it is any one or more than 3.
If it exceeds 3, the memory register (R
1) Replace (mouth).

（至）（ハ）（ハ）は夫々のカウンター（ＣＴ　Ｒ）を
１つずつカウントさせる＠−四と共に、予め設定した基
準度数に達したかを判断する一〇綽札 即ち、出力カウント（ＤＮ　）と基準出力カウント（Ｄ
Ｄ）の差に）が１の時は度数が基準度数＝８に、２の時
は度数が基準度数；４に、３の時は度数が基準度数＝２
に、なった時に基準出力カウント（ＤＤ　）を出力カウ
ント（ＤＮ）に置き換える（ホ）と共に、度数カウンタ
ー（ＣＴＲ）をクリアするり。(To) (C) (C) together with @-4 which causes each counter (CTR) to count one by one, the output count (DN ) and reference output count (D
When the difference in D) is 1, the power is the standard power = 8, and when it is 2, the power is the standard power; when it is 4, and 3, the power is the standard power = 2.
When this happens, the reference output count (DD) is replaced with the output count (DN) (e), and the frequency counter (CTR) is cleared.

そして記憶レジスター（Ｒ１）に出力カウント（ＤＮ）
を入れる（６）ものであるが、基準度数に度数が達しな
い時には直接（６）に至った後、新たに出力カウント（
ＤＮ）を採集するようになるαも上記実施例の動作を第
３図により説明すれば、図中縦軸は出力カウントを横軸
は所定時間毎の度数を示すと共に、Ｘ印は出力カウント
（１）Ｎ）、Ｑ印は基準出力カウント（ＤＤ）を示す。Then output count (DN) to memory register (R1).
(6), but if the frequency does not reach the standard frequency, it directly reaches (6) and then newly outputs the count (
The operation of the above embodiment will be explained with reference to FIG. 3. In the figure, the vertical axis indicates the output count, the horizontal axis indicates the frequency at each predetermined time, and the X mark indicates the output count (DN). 1)N), Q mark indicates standard output count (DD).

度数＝１．２．３で出力カウント（ＤＮ）　＝　３ｏ。Frequency = 1.2.3 and output count (DN) = 3o.

００＋１が３回連続するが、差囚が１の時の基準度数＝
８に至らないので基早出力カウント（ＤＤ）＝　３００
００は変わらない。度数＝４〜９においても同様である
。度数；１０〜１７においては差囚＝＋１が８回連続し
基準度数−８に至るので、度数＝１８において基準出力
カウント（ＤＤ）　＝　３００００＋１となる。従って
度数＝１８〜２１においても基準出力カウント（ＤＤ）
　＝　３００００　＋　１であるが、度数＝２１におい
ては出力カウント（ＤＮ）　＝　ａｏｏｏ。Standard frequency when 00+1 occurs 3 times in a row, but the difference is 1 =
Since it does not reach 8, the basic output count (DD) = 300
00 remains unchanged. The same holds true for frequencies of 4 to 9. At frequencies 10 to 17, difference = +1 occurs 8 times in a row and reaches the standard frequency -8, so at frequency = 18, the standard output count (DD) = 30000+1. Therefore, the standard output count (DD) also applies when the frequency is 18 to 21.
= 30000 + 1, but at frequency = 21 the output count (DN) = aooo.

−４となシ差（４）＝−５となシ、基準度数＝１に至る
ので基準出力カウント（１）Ｄ）　＝　３００００−４
となる。-4 = Difference (4) = -5, standard frequency = 1, so standard output count (1) D) = 30000-4
becomes.

尚、本発明において出力カウントと出力カウントの所定
時間は任意に設定できると共に、出力カウントと基準出
力カウントの各差における基準度数も任意に設定するこ
とができる。In the present invention, the output count and the predetermined time of the output count can be arbitrarily set, and the reference frequency for each difference between the output count and the reference output count can also be arbitrarily set.

基準度数の設定は第２図の電子秤にキ一部（８）を追加
した第４図のような電子秤によって、キ一部α枠を使っ
てできるようにすれはよシ便利である。It would be very convenient to set the reference power by using an electronic scale such as the one shown in Figure 4, which is the electronic scale shown in Figure 2 with a part (8) added, using the part α frame.

即ち、電子秤のチラッキの原因である外部振動の周波数
は作業場所等の条件によって異なるので、各作業条件に
合わせた基準度数をキ一部（８ンにて設定することによ
って、作業条件に特有の外部振動をシャットアウトする
ことができる。又、測定精成が比較的ラフな場合は基準
度数の設定をラフにしてチラッキを無しにするようにす
ることができる。In other words, the frequency of external vibrations that cause electronic scales to flicker differs depending on the conditions of the work place, etc., so by setting the standard frequency according to each work condition in the key part (8), it is possible to In addition, if the measurement precision is relatively rough, the reference frequency can be set roughly to eliminate flickering.

本発明は以上のように電子秤のＡ／ｉ）変換器の出力カ
ウントを中央処理装置に基準出力カウントとして設定し
表示すると共に、予め基準出力カウントに対する出力カ
ウントの差に対応する出力カウントの基準度数を設定し
、上記Ａろ父俣器の出力カウントとその度数を読取って
、該出力カウントの度数が基準度数に達した時に該出力
カウントを新たな基準出力カウントに設定し表示する帽
蓋安定方法に構成したので、振動、雑音によシ生じる表
示のチラッキを防止することができ、高精度の電子秤に
おいてもチラッキを無くすことができる。As described above, the present invention sets and displays the output count of the A/i) converter of the electronic scale as the reference output count in the central processing unit, and also sets the output count standard corresponding to the difference between the output count and the reference output count in advance. Set the power, read the output count of the A filter device and its power, and when the power of the output count reaches the standard power, set the output count as a new standard output count and display it. By adopting this method, it is possible to prevent flickering of the display caused by vibration and noise, and it is possible to eliminate flickering even in highly accurate electronic scales.

依って９１期の目的を達する。Thus, we will achieve the purpose of the 91st term.

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

第１図は本部明実施の一例を示すフローチャート図、第
２図は同ブロック図、第３図は同動作説明図、第４図は
キ一部を設けた秤のブロック図、第５図は従来例のブロ
ック図である。 図中、 （１）・・・計量機構　　　　　（２）・・・増幅部（
３）・・・フィルター　　　　（４）・・・へう変換器
（５）・・・表示用レジスター　（６）・・・表示器（
７）・・・メモリ （ＤＮ）・・・出力カウント　（ＤＤ）・・・基環１出
力カウントＱ・・・出力カウントと基準出力カウントと
のカウント差である。 特許出願人　　　株式会社寺　岡　鞘　工手続補正書 昭和５７年１２月２９日 特許庁長官　　　若　　杉　　和　　夫　　　殿（特許
庁審査官　　　　　　　殿） １、事件の表示 昭和５７年特許願第２１０７４８号 ２、発明の名称 計量安定方法 氏名（名称）　株式会社寺岡精工 ５、補正命令の日付（自発補正） 昭和　　年　　月　　日 ６、補正の対象 朗細書全文 ７１−Fig. 1 is a flowchart showing an example of the implementation of this invention, Fig. 2 is a block diagram of the same, Fig. 3 is an explanatory diagram of the same operation, Fig. 4 is a block diagram of a scale with a part installed, and Fig. 5 is a block diagram of the scale. FIG. 2 is a block diagram of a conventional example. In the figure, (1)...Measuring mechanism (2)...Amplification section (
3)... Filter (4)... Hew converter (5)... Display register (6)... Display (
7) Memory (DN) Output count (DD) Base ring 1 output count Q... Count difference between output count and reference output count. Patent Applicant Saya Teraoka Co., Ltd. Technical Procedure Amendment December 29, 1980 Director General of the Patent Office Kazuo Wakasugi (Examiner of the Patent Office) 1. Indication of the case Patent Application No. 210748 of 1982 2. Invention Name of measurement stabilization method Name (name) Teraoka Seiko Co., Ltd. 5, Date of amendment order (voluntary amendment) Showa year, month, day 6, Full text of detailed statement subject to amendment 71-

Claims (2)

【特許請求の範囲】[Claims] （１）　　電子秤のへ５変換器の出力カウントを中央処
理装置に基準出力カウントとして設定し表示ｊると共に
、予め基準出力カウントに対する出力カウントの差に対
応する出力カウントの基準度数を設定し、上記へ５変換
器の出力カウントとその度数を読取って、該出力カウン
トの度数が基準度数に達した時に該出力カウントを新た
な法。(1) Set and display the output count of the 5 converter of the electronic scale as a reference output count in the central processing unit, and set in advance a reference frequency of the output count corresponding to the difference between the output count and the reference output count, 5 Read the output count of the converter and its frequency, and when the frequency of the output count reaches the reference frequency, convert the output count to a new method. （２）上記基準出力カウントに対する出力カクントの差
に対応する出力カウントの基準度数の設定をキー人力操
作で行なうＩ＋！ｆ許請求の範囲第１項記載の計量安定
方法。(2) Setting the standard frequency of the output count corresponding to the difference of the output kakuto with respect to the above standard output count by manual key operation I+! f. The method for stabilizing metrology according to claim 1.
JP21074882A 1982-11-30 1982-11-30 Measurement stabilizing method Granted JPS5999315A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP21074882A JPS5999315A (en) 1982-11-30 1982-11-30 Measurement stabilizing method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP21074882A JPS5999315A (en) 1982-11-30 1982-11-30 Measurement stabilizing method

Publications (2)

Publication Number Publication Date
JPS5999315A true JPS5999315A (en) 1984-06-08
JPH0215004B2 JPH0215004B2 (en) 1990-04-10

Family

ID=16594467

Family Applications (1)

Application Number Title Priority Date Filing Date
JP21074882A Granted JPS5999315A (en) 1982-11-30 1982-11-30 Measurement stabilizing method

Country Status (1)

Country Link
JP (1) JPS5999315A (en)

Also Published As

Publication number Publication date
JPH0215004B2 (en) 1990-04-10

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