JPH0222992U - - Google Patents
Info
- Publication number
- JPH0222992U JPH0222992U JP9978488U JP9978488U JPH0222992U JP H0222992 U JPH0222992 U JP H0222992U JP 9978488 U JP9978488 U JP 9978488U JP 9978488 U JP9978488 U JP 9978488U JP H0222992 U JPH0222992 U JP H0222992U
- Authority
- JP
- Japan
- Prior art keywords
- boom length
- boom
- detector
- cord
- value
- 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.)
- Pending
Links
- 238000001514 detection method Methods 0.000 claims description 2
- 238000000605 extraction Methods 0.000 claims 1
- 238000003780 insertion Methods 0.000 claims 1
- 230000037431 insertion Effects 0.000 claims 1
- 238000005259 measurement Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 2
Landscapes
- Jib Cranes (AREA)
Description
第１図および第２図は本考案にかかるブーム長
さ検出装置の概略説明図、第３図は近似ブーム長
さ計算フローチヤートの説明図である。
１：コードリール、２：コード、３：シーブ、
４：シーブ３の枢支軸、５：検出器、６：マイク
ロコンピユータ、７：表示パネル。
1 and 2 are schematic explanatory diagrams of a boom length detection device according to the present invention, and FIG. 3 is an explanatory diagram of an approximate boom length calculation flowchart. 1: Cord reel, 2: Cord, 3: Sheave,
4: Pivot shaft of sheave 3, 5: Detector, 6: Microcomputer, 7: Display panel.
Claims (1)
て、ブームの伸縮に応じて繰り出され、かつ巻き
取られるコード２と、該コード２の移動量を回転
運動に変換するためのシーブ３と、該シーブ３の
回転量を検出する検出器５及び該検出器５に接続
されたマイクロコンピユータ６とを備え、該コン
ピユータ６に、検出器５の信号からブーム長さを
演算した数値と実測値との差を補正値として演
算し記憶させると共に、前記検出器５の信号から
任意の位置におけるブーム長さＬｏを検出し、該
ブーム長さＬｏに前記補正値を加味したブーム
長さＬが最小ブーム長さＬｍｉｎと最大ブーム長
さＬｍａｘの範囲外となつたときは、最小ブーム
長さＬｍｉｎ又は最大ブーム長さＬｍａｘと前記
ブーム長さＬとの差ｅ１を再補正値として演算し
、検出されたブーム長さＬＯに該再補正値１を
順次加算して自動的に補正することを特徴とする
ブーム長さ検出補正装置。 A telescopic boom that allows relative insertion and extraction includes a cord 2 that is let out and wound up as the boom expands and contracts, a sheave 3 for converting the amount of movement of the cord 2 into rotational motion, and a sheave 3 for converting the amount of movement of the cord 2 into rotational motion. It is equipped with a detector 5 that detects the amount of rotation and a microcomputer 6 connected to the detector 5, and the computer 6 is configured to correct the difference between the value calculated for the boom length from the signal of the detector 5 and the actual measurement value. In addition to calculating and storing it as a value, the boom length L o at an arbitrary position is detected from the signal of the detector 5, and the boom length L obtained by adding the correction value to the boom length L o is the minimum boom length. When L min is outside the range of the maximum boom length L max , calculate the difference e 1 between the minimum boom length L min or the maximum boom length L max and the boom length L as a re-correction value, A boom length detection and correction device that automatically corrects the detected boom length LO by sequentially adding the re-correction value 1 to the detected boom length LO.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9978488U JPH0222992U (en) | 1988-07-29 | 1988-07-29 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9978488U JPH0222992U (en) | 1988-07-29 | 1988-07-29 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0222992U true JPH0222992U (en) | 1990-02-15 |
Family
ID=31327263
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9978488U Pending JPH0222992U (en) | 1988-07-29 | 1988-07-29 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0222992U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04236485A (en) * | 1991-01-18 | 1992-08-25 | Ishihara Chem Co Ltd | Manufacturing method for printed wiring boards |
-
1988
- 1988-07-29 JP JP9978488U patent/JPH0222992U/ja active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04236485A (en) * | 1991-01-18 | 1992-08-25 | Ishihara Chem Co Ltd | Manufacturing method for printed wiring boards |
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