JP2815426B2 - How to set the instrument plant data - Google Patents
How to set the instrument plant dataInfo
- Publication number
- JP2815426B2 JP2815426B2 JP1290596A JP29059689A JP2815426B2 JP 2815426 B2 JP2815426 B2 JP 2815426B2 JP 1290596 A JP1290596 A JP 1290596A JP 29059689 A JP29059689 A JP 29059689A JP 2815426 B2 JP2815426 B2 JP 2815426B2
- Authority
- JP
- Japan
- Prior art keywords
- value
- instrument
- written
- specific
- indicated
- 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
Links
Landscapes
- Indication And Recording Devices For Special Purposes And Tariff Metering Devices (AREA)
- Measuring Instrument Details And Bridges, And Automatic Balancing Devices (AREA)
Description
この発明は、スピードメータ，タコメータ，液温計等
の各種計器の指示値データ設定方法に関する。The present invention relates to a method for setting indicated value data of various instruments such as a speedometer, a tachometer, and a liquid thermometer.
従来の計器は指針を目盛板の特定の指示値に合せるよ
うに指針軸に打込み固着し、そののち指針が例えば最大
振れ角まで回動するような信号を駆動回路より出力さ
せ、このときの指針の指示値を目測しながら指針が駆動
回路よりの出力信号に対応して適正な振れ角で回動する
か否かを目で確認していた。In the conventional instrument, the pointer is driven and fixed to the pointer shaft so as to match a specific indicated value on the scale plate, and then a signal is output from the drive circuit such that the pointer rotates to, for example, the maximum deflection angle. While visually observing the indicated value, it was visually confirmed whether or not the pointer rotated at an appropriate deflection angle in accordance with the output signal from the drive circuit.
しかしながら、このような従来の計器にあっては指針
を目盛板の特定の指示値に合せる打込み作業は手作業で
あるため、指示精度にばらつきがあり、また各種計器の
指針の位置確認を目測で行っていたため、指示調整に時
間が掛るという問題点があった。 この発明はこのような従来の問題点に着目してなされ
たもので、指示調整時間を短縮すると共に、指示精度を
向上させるようにした計器の指示値データ設定方法を提
供することを目的とする。However, in such a conventional instrument, since the driving operation for adjusting the pointer to a specific indicated value on the scale plate is a manual operation, there is a variation in the indicating accuracy, and the position confirmation of the pointer of various instruments is visually checked. However, there was a problem that it took time to adjust the instruction. SUMMARY OF THE INVENTION The present invention has been made in view of such conventional problems, and has as its object to provide a method for setting an indicated value data of an instrument which shortens an indicated adjustment time and improves an indicated accuracy. .
この発明に係る計器の指示値データ設定方法は、計器
の指示値が規格値になるように増幅器を介して前記計器
を特定の大きさの入力信号で駆動させる工程と、前記計
器の表示面に対向配置された計測用カメラによって、前
記指示値を読み取る工程と、この読み取た値が前記規格
値になるように前記増幅器のゲインを補正した後に、そ
のゲインをRAMに書込む工程と、書込んだ値に基づい
て、前記計器を駆動し、指示値が前記規格値を含む所定
範囲内に入るまで前記操作を繰返し行い、所定の範囲に
入ったときに前記RAMに書込まれた最終値をE2PROMに書
込む工程とよりなるものであります。A method of setting the indicated value data of an instrument according to the present invention includes the steps of: driving the instrument with an input signal of a specific magnitude via an amplifier so that the indicated value of the instrument becomes a standard value; A step of reading the indicated value by a measurement camera arranged oppositely, a step of correcting the gain of the amplifier so that the read value becomes the standard value, and then writing the gain to a RAM. Based on the read value, the meter is driven, and the above operation is repeated until the indicated value falls within a predetermined range including the standard value. It consists of the process of writing to the E 2 PROM.
この発明における計器の指示値データ設定方法は計器
の表示面の指針による指示値を読取り、読取った値を特
定の値になるように補正した後、RAMに書込み、書込ん
だ値に基づいて駆動された指示値が特定の値を含む所定
範囲内に入ったときにE2PROMに書込むようにすることに
より計器の特性に合せたデータE2PROMに書込むことがで
きる。The method of setting the indicated value data of the meter according to the present invention reads the indicated value by the pointer on the display surface of the meter, corrects the read value to a specific value, writes the read value to the RAM, and drives based on the written value. By writing the data into the E 2 PROM when the read indicated value falls within a predetermined range including a specific value, it is possible to write the data into the data E 2 PROM according to the characteristics of the instrument.
以下、この発明の一実施例を図面に基づいて詳細に説
明する。 第１図はこの発明の一実施例を示す構成図で、図にお
いて、１は計器本体、２はこの計器本体１の表示面を読
み取る計測用カメラである画像処理用カメラ、３は画像
処理システムと調整システムとの機能のプログラムを有
するCPU、４は駆動回路５から計器本体１に特定の大き
さの入力信号を供給した場合に、計器本体１の指針が所
定の目盛を指示するように後述のCPU7の入力信号増幅ゲ
インを決めるためのデータが書き込まれるE2PROM、５は
計器１を駆動させる駆動回路である。 次に第２図に基づいて動作について説明する。まず、
計器本体１の指針軸に指針を打込み、固着した後、計器
本体１を画像処理カメラ２の前に設置する。そして、ス
テップST1で検査のスタートスイッチがオンされ、その
信号がCPU3に入力されると、CPU3内のRAM等を初期設定
する。ステップST2では計器本体１を特定の値、例えば0
km/h、100km/h等に指示させるための信号をCPU3内のRAM
に設定する。この場合ステップST1からステップST2に進
んだときは0km/hを、ステップST8からのときは100km/h
を設定する。そしてステップST3では、計器本体１の指
針が特定の目盛を指示するように特定の大きさの指示信
号を、CPU3内の増幅機能で所定のゲインで増幅した後駆
動回路５を介して計器本体１に供給し、この計器本体１
を駆動させる。ステップST4において、計器本体１の指
針の指示値を画像処理カメラ２で読み取り、ステップST
5で読み取った計測値（指示値）を規格値と比較し、そ
の差を求める。そして、計測値が規格値を含む所定の範
囲からずれているか否かを判断し、所定範囲外である場
合にはステップST6に進み、また所定範囲内であればス
テップ７に進む。ステップST6では、ステップST5で求め
た差の大きさ及び差の正負を基準にして計器本体１が所
定の指示をするように前記CPU3内の増幅機能のゲインの
大きさを増幅させて、その結果をCPU3内のRAMに書込む
と共に、演算結果に基づいてステップST3に進み、駆動
回路５を介して計器本体１を再度駆動させる。また、ス
テップST5で計器本体１の指針が規格値を含む所定の範
囲内の目盛を指示すると、この目盛を指示させるために
計器本体１に供給されている指示信号のゲインをCPU3内
のRAMからE2PROM4に書込む。ステップST8では所定の指
示値（この場合0km/h、100km/hの２点）での調整を行っ
たか否かの判断を行い、0km/hの指示のみについて調整
を行ったのであれば、ステップST2に戻り100km/hの指示
についての調整を行う。そして、所定の指示値について
調整をすべて行った後はステップST9で一連の処理を終
了する。 上記のように指示値データが設定されたE2PROM4を実
際の計器ユニットに適用した例を第３図に示し、その説
明を行う。CPU7は電源が投入されると、E2PROM4から第
１図において説明したゲインを読取り、その後、センサ
６からの検出信号を入力し、該検出信号の信号処理を行
うとともに、該検出信号の大きさに相当する目盛を指示
するようにCPU7からの出力信号のゲインを増減した後
に、駆動回路５を介して計器本体１が駆動される。 なお、CPU7は第１図におけるCPU3の機能から画像処理
システムのプログラムを除いたものは全て有している。Hereinafter, an embodiment of the present invention will be described in detail with reference to the drawings. FIG. 1 is a block diagram showing an embodiment of the present invention. In the drawing, reference numeral 1 denotes an instrument main body, 2 denotes an image processing camera which is a measuring camera for reading a display surface of the instrument main body 1, and 3 denotes an image processing system. The CPU 4 having a program for the function of the control system and the adjustment system will be described later so that, when an input signal of a specific magnitude is supplied from the drive circuit 5 to the instrument main body 1, the pointer of the instrument main body 1 indicates a predetermined scale. The E 2 PROM 5 in which data for determining the input signal amplification gain of the CPU 7 is written is a drive circuit for driving the meter 1. Next, the operation will be described with reference to FIG. First,
After the pointer is driven into the pointer shaft of the instrument body 1 and fixed, the instrument body 1 is set in front of the image processing camera 2. Then, in step ST1, the test start switch is turned on, and when the signal is input to the CPU 3, the RAM and the like in the CPU 3 are initialized. In step ST2, the instrument body 1 is set to a specific value, for example, 0
Signal to instruct km / h, 100km / h, etc. in RAM in CPU3
Set to. In this case, 0 km / h when proceeding from step ST1 to step ST2, 100 km / h when proceeding from step ST8
Set. In step ST3, an instruction signal of a specific magnitude is amplified with a predetermined gain by an amplification function in the CPU 3 so that the pointer of the instrument main body 1 indicates a specific scale, and then the instrument main body 1 is driven via the drive circuit 5. To the instrument body 1
Drive. In step ST4, the indicator value of the pointer of the instrument body 1 is read by the image processing camera 2, and
The measured value (indicated value) read in step 5 is compared with a standard value, and the difference is obtained. Then, it is determined whether or not the measured value is out of a predetermined range including the standard value. If the measured value is out of the predetermined range, the process proceeds to step ST6, and if it is within the predetermined range, the process proceeds to step 7. In step ST6, the magnitude of the gain of the amplification function in the CPU 3 is amplified so that the instrument main unit 1 gives a predetermined instruction based on the magnitude of the difference and the sign of the difference obtained in step ST5. Is written into the RAM in the CPU 3, and the process proceeds to step ST 3 based on the calculation result to drive the instrument main body 1 again via the drive circuit 5. Further, when the pointer of the meter main body 1 indicates a scale within a predetermined range including the standard value in step ST5, the gain of the indicating signal supplied to the meter main body 1 for indicating the scale is obtained from the RAM in the CPU 3. Write to E 2 PROM4. In step ST8, it is determined whether or not adjustment has been performed at a predetermined instruction value (in this case, 2 points of 0 km / h and 100 km / h). Return to ST2 and make adjustments for the 100 km / h instruction. Then, after all adjustments have been made for the predetermined instruction value, a series of processing ends in step ST9. An example in which the E 2 PROM 4 in which the indicated value data is set as described above is applied to an actual instrument unit is shown in FIG. 3 and will be described. When the power is turned on, the CPU 7 reads the gain described in FIG. 1 from the E 2 PROM 4, thereafter, inputs a detection signal from the sensor 6, performs signal processing of the detection signal, and increases the magnitude of the detection signal. After increasing or decreasing the gain of the output signal from the CPU 7 so as to indicate a scale corresponding to the above, the meter main body 1 is driven via the drive circuit 5. The CPU 7 has all the functions of the CPU 3 in FIG. 1 except for the program of the image processing system.
以上説明してきたようにこの発明によれば、その構成
を計器の指示値が特定の値になるように増幅器を介して
前記計器を特定の大きさの入力信号で起動せしめると共
に、前記計器の表示面に対向配置された計測用カメラに
よって前記指示値を読み取り、読取った値が前記特定の
値になるように前記増幅器のゲインを補正した後、その
ゲインをRAMに書込み、該書込んだ値に基づいて、前記
計器を駆動し、指示値が前記特定の値を含む所定の範囲
内に入るまで前記操作を繰返し行い、所定の範囲内に入
ったときに前記RAMに書込まれた最終値をE2PROM4に書込
むようにした計器の指示値データ設定方法としたため、
指示値の調整を短時間に行え、しかも指示精度を向上さ
せることができるという効果が得られる。As described above, according to the present invention, the configuration is such that the instrument is activated by an input signal of a specific magnitude via an amplifier so that the indicated value of the instrument becomes a specific value, and the display of the instrument is performed. The indicated value is read by a measurement camera arranged opposite to the surface, the gain of the amplifier is corrected so that the read value becomes the specific value, and then the gain is written to RAM, and the written value is written to the RAM. Based on the above, the instrument is driven, and the operation is repeated until the indicated value falls within a predetermined range including the specific value, and the final value written to the RAM is read when the value falls within the predetermined range. Because the method of setting the indicated value data of the instrument to be written to E 2 PROM4 was used,
The effect is obtained that the indication value can be adjusted in a short time and the indication accuracy can be improved.
第１図はこの発明に係る計器の指示値データ設定方法の
一実施例を示す構成図、第２図は第１図の動作を説明す
るフローチャート、第３図は本発明においてデータが設
定されたE2PROMを用いて実際の計器ユニットを駆動した
場合の説明図である。 １……計器、２……計測用カメラ、3,7……CPU、４……
E2PROM。FIG. 1 is a block diagram showing an embodiment of a method for setting the indicated value data of an instrument according to the present invention, FIG. 2 is a flowchart for explaining the operation of FIG. 1, and FIG. FIG. 4 is an explanatory diagram in a case where an actual instrument unit is driven using an E 2 PROM. 1 ... Instrument, 2 ... Measurement camera, 3,7 ... CPU, 4 ...
E 2 PROM.
───────────────────────────────────────────────────── フロントページの続き (56)参考文献 特開 平３−4120（ＪＰ，Ａ) 実開 昭58−27715（ＪＰ，Ｕ) (58)調査した分野(Int.Cl.6，ＤＢ名) G01D 3/00──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-3-4120 (JP, A) Japanese Utility Model Showa 58-27715 (JP, U) (58) Fields investigated (Int. Cl. 6 , DB name) G01D 3/00
Claims (1)
に増幅器を介して前記計器を特定の大きさの入力信号で
駆動せしめると共に、前記計器の表示面に対向配置され
た計測用カメラ（２）によって前記指示値を読み取り、
読取った値が前記特定の値になるように前記増幅器のゲ
インを補正した後、そのゲインをRAM（３）に書込み、
該書込んだ値に基づいて、前記計器（１）を駆動し、指
示値が前記特定の値を含む所定の範囲内に入るまで前記
操作を繰返し行い、所定の範囲内に入ったときに前記RA
Mに書込まれた最終値をE2PROM（４）に書込むようにし
た計器の指示値データ設定方法。An instrument (1) is driven by an input signal of a specific magnitude via an amplifier so that an indicated value of the instrument (1) becomes a specific value, and a measurement arranged opposite to a display surface of the instrument. Reading the indicated value by a camera (2),
After correcting the gain of the amplifier so that the read value becomes the specific value, the gain is written to the RAM (3),
The meter (1) is driven based on the written value, and the operation is repeated until the indicated value falls within a predetermined range including the specific value. RA
The method of setting the indicated value data of the instrument so that the final value written in M is written in E 2 PROM (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1290596A JP2815426B2 (en) | 1989-11-08 | 1989-11-08 | How to set the instrument plant data |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1290596A JP2815426B2 (en) | 1989-11-08 | 1989-11-08 | How to set the instrument plant data |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH03152417A JPH03152417A (en) | 1991-06-28 |
| JP2815426B2 true JP2815426B2 (en) | 1998-10-27 |
Family
ID=17758056
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1290596A Expired - Fee Related JP2815426B2 (en) | 1989-11-08 | 1989-11-08 | How to set the instrument plant data |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2815426B2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103604456A (en) * | 2013-12-09 | 2014-02-26 | 国家电网公司 | Automatic calibration system and automatic calibration method of pointer instrument |
-
1989
- 1989-11-08 JP JP1290596A patent/JP2815426B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH03152417A (en) | 1991-06-28 |
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