JPH0390008U - - Google Patents
Info
- Publication number
- JPH0390008U JPH0390008U JP15111289U JP15111289U JPH0390008U JP H0390008 U JPH0390008 U JP H0390008U JP 15111289 U JP15111289 U JP 15111289U JP 15111289 U JP15111289 U JP 15111289U JP H0390008 U JPH0390008 U JP H0390008U
- Authority
- JP
- Japan
- Prior art keywords
- camera
- rotation angle
- detection device
- television
- television camera
- 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
Links
- 238000001514 detection method Methods 0.000 claims description 12
- 238000005096 rolling process Methods 0.000 claims description 8
- 238000010586 diagram Methods 0.000 description 12
Landscapes
- Closed-Circuit Television Systems (AREA)
- Length Measuring Devices By Optical Means (AREA)
- Investigating Materials By The Use Of Optical Means Adapted For Particular Applications (AREA)
Description
第１図は本考案に係る管内テレビ撮影機構にお
ける撮影位置検出装置の一実施例を示す管内走行
状態の構成図、第２図はテレビカメラを回動させ
る機構を示す要部構成図、第３図はテレビカメラ
の回動を制御するリミツトスイツチの配置図、第
４図はテレビカメラの回動を制御する回路図、第
５図はテレビカメラの回動を制御する説明図、第
６図はローリング角検出装置の構成図、第７図は
回転式無接触ポテンシヨメータの構造図、第８図
は第７図の回転式無接触ポテンシヨメータの側面
図、第９図は第７図の回転式無接触ポテンシヨメ
ータの回路図、第１０図は第６図のローリング角
検出装置の出力特性図、第１１図はテレビカメラ
回動角検出装置の構成図、第１２図は従来の管内
テレビ撮影機構の走行状態を示す説明図、第１３
図は第１２図のカメラ台車がローリングする状態
を示す説明図である。
１１……カメラ台車、１３……管、１４……ロ
ーリング角検出装置、１４ａ，１４ｂ……回転式
無接触ポテンシヨメータ、１９……回転円盤、２
０……テレビカメラ、２８……テレビカメラ回動
角検出装置、３０……モニター装置、３２……制
御部、４１ａ，４１ｂ……磁気抵抗素子、４２ａ
，４２ｂ……マグネツト、１６……錘、４８……
可動子、４９……抵抗素子。
Fig. 1 is a block diagram showing an embodiment of the photographing position detection device in the in-prefecture TV camera mechanism according to the present invention when it is running in the pipe; Fig. 2 is a main part block diagram showing the mechanism for rotating the TV camera; The figure is a layout diagram of a limit switch that controls the rotation of the television camera, Figure 4 is a circuit diagram that controls the rotation of the television camera, Figure 5 is an explanatory diagram that controls the rotation of the television camera, and Figure 6 is a rolling diagram. A configuration diagram of the angle detection device, Fig. 7 is a structural diagram of the rotary non-contact potentiometer, Fig. 8 is a side view of the rotary non-contact potentiometer shown in Fig. 7, and Fig. 9 shows the rotation of the rotary non-contact potentiometer shown in Fig. 7. 10 is a diagram of the output characteristics of the rolling angle detection device shown in FIG. 6, FIG. 11 is a block diagram of the TV camera rotation angle detection device, and FIG. Explanatory diagram showing the running state of the photographing mechanism, 13th
The figure is an explanatory diagram showing a rolling state of the camera truck in FIG. 12. 11...Camera trolley, 13...Tube, 14...Rolling angle detection device, 14a, 14b...Rotary non-contact potentiometer, 19...Rotating disk, 2
0... Television camera, 28... Television camera rotation angle detection device, 30... Monitor device, 32... Control unit, 41a, 41b... Magnetoresistive element, 42a
, 42b... Magnet, 16... Weight, 48...
Movable element, 49...resistance element.
Claims (1)
を有し、該カメラ台車には管内全周を撮影自在に
回動可能なテレビカメラを装着し、該テレビカメ
ラにはケーブルを介して地上のモニター装置に接
続してなる管内テレビ撮影機構において、上記カ
メラ台車に対するテレビカメラの回動角を検出し
て地上のモニター装置に送信するテレビカメラ回
動角検出装置と、カメラ台車の管内での横揺れ方
向の回動角を検出して上記モニター装置に送信す
るローリング角検出装置とを備えてなることを特
徴とする管内テレビ撮影機構における撮影位置検
出装置。 (2) 上記テレビカメラ回動角検出装置が、テレ
ビカメラの回動角に比例した検出値を出力する回
転式ポテンシヨメータから成ることを特徴とする
請求項(1)記載の管内テレビ撮影機構における撮
影位置検出装置。 (3) 上記ローリング角検出装置が、カメラ台車
の横揺れ角に応じて回動する円形状に配設した磁
気抵抗素子と、該磁気抵抗素子に対向させて配設
しかつ重量により常時一定位置を保持する半円形
状マグネツトとが２対有し、一方の対の磁気抵抗
素子を他方の対の磁気抵抗素子に対して回転角で
９０度の角度差を持たせたことを特徴とする請求
項(1)記載の管内テレビ撮影機構における撮影位
置検出装置。[Scope of Claim for Utility Model Registration] (1) It has a camera trolley that travels inside a pipe buried underground, and a television camera is attached to the camera trolley that can freely rotate to take pictures of the entire circumference of the pipe. In the in-service television shooting mechanism, which is connected to a monitor device on the ground via a cable, the camera is equipped with a television camera rotation angle detection device that detects the rotation angle of the television camera with respect to the camera trolley and transmits the detected rotation angle to the monitor device on the ground. and a rolling angle detection device for detecting the rotation angle of the camera truck in the rolling direction within the tube and transmitting the detected rotation angle to the monitor device. (2) The in-service television camera mechanism according to claim (1), wherein the television camera rotation angle detection device comprises a rotary potentiometer that outputs a detected value proportional to the rotation angle of the television camera. Photographing position detection device. (3) The rolling angle detection device includes a magnetic resistance element arranged in a circular shape that rotates according to the rolling angle of the camera trolley, and a magnetic resistance element arranged opposite to the magnetic resistance element and always at a constant position due to the weight. A claim characterized in that there are two pairs of semicircular magnets that hold the magnet, and the magnetoresistive elements of one pair have a rotational angle difference of 90 degrees from the magnetoresistive elements of the other pair. A photographing position detection device in the local television photographing mechanism described in item (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1989151112U JPH0754803Y2 (en) | 1989-12-29 | 1989-12-29 | Shooting position detection device for television shooting mechanism in television |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1989151112U JPH0754803Y2 (en) | 1989-12-29 | 1989-12-29 | Shooting position detection device for television shooting mechanism in television |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0390008U true JPH0390008U (en) | 1991-09-13 |
| JPH0754803Y2 JPH0754803Y2 (en) | 1995-12-18 |
Family
ID=31697426
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1989151112U Expired - Fee Related JPH0754803Y2 (en) | 1989-12-29 | 1989-12-29 | Shooting position detection device for television shooting mechanism in television |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0754803Y2 (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57162405A (en) * | 1981-03-31 | 1982-10-06 | Kogyo Gijutsuin | Noncontact potentiometer |
| JPS58154603A (en) * | 1982-03-10 | 1983-09-14 | Nippon Telegr & Teleph Corp <Ntt> | Detector for measuring position of conduit line |
| JPS6454234A (en) * | 1987-08-25 | 1989-03-01 | Nippon Kokan Kk | Tv pig for inspection of pipe body |
| JPH01213512A (en) * | 1988-02-23 | 1989-08-28 | Iseki Tory Tech Inc | Method and instrument for detecting angle and working device using said detecting device |
-
1989
- 1989-12-29 JP JP1989151112U patent/JPH0754803Y2/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57162405A (en) * | 1981-03-31 | 1982-10-06 | Kogyo Gijutsuin | Noncontact potentiometer |
| JPS58154603A (en) * | 1982-03-10 | 1983-09-14 | Nippon Telegr & Teleph Corp <Ntt> | Detector for measuring position of conduit line |
| JPS6454234A (en) * | 1987-08-25 | 1989-03-01 | Nippon Kokan Kk | Tv pig for inspection of pipe body |
| JPH01213512A (en) * | 1988-02-23 | 1989-08-28 | Iseki Tory Tech Inc | Method and instrument for detecting angle and working device using said detecting device |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0754803Y2 (en) | 1995-12-18 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |