JP2012115041A - Cable storage pipe inspection device - Google Patents

Cable storage pipe inspection device Download PDF

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JP2012115041A
JP2012115041A JP2010261657A JP2010261657A JP2012115041A JP 2012115041 A JP2012115041 A JP 2012115041A JP 2010261657 A JP2010261657 A JP 2010261657A JP 2010261657 A JP2010261657 A JP 2010261657A JP 2012115041 A JP2012115041 A JP 2012115041A
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pipe
cable
imaging
inspection device
camera
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JP5545750B2 (en
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Hiroyuki Yamashita
宏幸 山下
Nobuhiro Segawa
信博 瀬川
Taiji Yamazaki
泰司 山崎
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Nippon Telegraph and Telephone Corp
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R25/00—Fittings or systems for preventing or indicating unauthorised use or theft of vehicles
    • B60R25/01—Fittings or systems for preventing or indicating unauthorised use or theft of vehicles operating on vehicle systems or fittings, e.g. on doors, seats or windscreens
    • B60R25/02—Fittings or systems for preventing or indicating unauthorised use or theft of vehicles operating on vehicle systems or fittings, e.g. on doors, seats or windscreens operating on the steering mechanism
    • B60R25/021—Fittings or systems for preventing or indicating unauthorised use or theft of vehicles operating on vehicle systems or fittings, e.g. on doors, seats or windscreens operating on the steering mechanism restraining movement of the steering column or steering wheel hub, e.g. restraining means controlled by ignition switch
    • B60R25/0215—Fittings or systems for preventing or indicating unauthorised use or theft of vehicles operating on vehicle systems or fittings, e.g. on doors, seats or windscreens operating on the steering mechanism restraining movement of the steering column or steering wheel hub, e.g. restraining means controlled by ignition switch using electric means, e.g. electric motors or solenoids
    • B60R25/02153—Fittings or systems for preventing or indicating unauthorised use or theft of vehicles operating on vehicle systems or fittings, e.g. on doors, seats or windscreens operating on the steering mechanism restraining movement of the steering column or steering wheel hub, e.g. restraining means controlled by ignition switch using electric means, e.g. electric motors or solenoids comprising a locking member radially and linearly moved towards the steering column

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Laying Of Electric Cables Or Lines Outside (AREA)
  • Instruments For Viewing The Inside Of Hollow Bodies (AREA)
  • Electric Cable Installation (AREA)

Abstract

PROBLEM TO BE SOLVED: To provide a cable storage pipe inspection device for visually inspecting an underground buried pipeline in which a cable is housed.SOLUTION: A cable storage pipe inspection device 1 has a mandrel shape 10 having outer shape dimensions and a length dimension set depending on an underground buried pipeline 100. A through-hole 20 for allowing the passage of a cable is provided in the pipeline axis direction of the mandrel shape 10. On at least one pipeline-axis-direction surface of the mandrel shape 10, tow ropes 60 and 70 are provided, and a light source for irradiating the inside of the pipeline and camera heads 30a, 30b and 30c of an imaging camera for taking and recording an image of the inside of the pipeline are provided.

Description

本発明は、ケーブルが収容されている地中埋設管路の目視点検に用いるケーブル収容管点検装置に関する。   The present invention relates to a cable housing pipe inspection device used for visual inspection of underground underground conduits in which cables are housed.

従来、管路の通線・通過試験の方法として、通過性確認機能としてマンドレルを用いる方法がある。この方法は、点検する管路に合わせて設定した外形寸法及び長さ寸法を有するマンドレルを用意し、一方のマンホール側にマンドレルを設置して他方のマンホール口から牽引することにより、一方のマンホール口から他方のマンホール口までの管路の通過性阻害要因の有無を点検することができる（例えば、特許文献１参照）。   Conventionally, there is a method of using a mandrel as a passability confirmation function as a method of a line passage / passage test. In this method, a mandrel having an outer dimension and a length dimension set in accordance with a pipe line to be inspected is prepared, and a mandrel is installed on one manhole side and pulled from the other manhole port, thereby allowing one manhole port to be It is possible to check the presence or absence of a passage impediment factor of the pipeline from the first to the other manhole port (see, for example, Patent Document 1).

実用新案公開平６−６０２４７号公報Japanese Utility Model Publication No. 6-60247

マンドレルによる管路の点検は、ある一定の品質管理に役立つものであるが、簡易的な点検技法に過ぎない。さらに、マンドレルは、ケーブルを収容していない管路で利用できるものの、ケーブル収容管ではそのまま使用することができない。   Inspecting a pipeline with a mandrel is useful for a certain quality control, but is only a simple inspection technique. Furthermore, although the mandrel can be used in a conduit that does not contain a cable, it cannot be used as it is in a cable containing tube.

また、管路内を詳細に点検する技法として、ケーブルを収容していない管路であれば例えばマンドレルに撮影カメラを設置して記録するやり方も考えられるが、ケーブル設置済みの管路の点検のために、ケーブルを除去して行うのでは効率的な点検方法とはいえない。   In addition, as a technique for inspecting the inside of the pipe line in detail, if the pipe line does not contain a cable, for example, a method of installing a photographing camera on a mandrel and recording can be considered, but inspection of the pipe line already installed with a cable is also conceivable. Therefore, removing the cable is not an efficient inspection method.

本発明は、上述の問題に鑑みて為されたものであり、ケーブルが収容されている地中埋設管路の目視点検に用いるケーブル収容管点検装置を提供することを目的とする。   The present invention has been made in view of the above-described problems, and an object of the present invention is to provide a cable housing pipe inspection device used for visual inspection of underground buried pipes in which cables are housed.

本発明のケーブル収容管点検装置は、ケーブルが収容されている地中埋設管路の目視点検のためのケーブル収容管点検装置であって、前記地中埋設管路に合わせて設定した外形寸法及び長さ寸法のマンドレル形状を有し、前記マンドレル形状の管路軸方向に前記ケーブルを通過させるための通し穴を有し、当該マンドレル形状の管路軸方向の少なくとも一方の面には牽引ロープが設けられるとともに、管路内を照射する光源及び管路内を撮像して記録する撮像カメラのカメラヘッドが設けられていることを特徴とする。   The cable housing pipe inspection device of the present invention is a cable housing pipe inspection device for visual inspection of underground underground conduits in which cables are accommodated, and has external dimensions set according to the underground underground conduits and It has a mandrel shape of a length dimension, has a through hole for allowing the cable to pass in the mandrel-shaped pipe axis direction, and a tow rope is provided on at least one surface of the mandrel-shaped pipe axis direction. In addition to being provided, a light source for irradiating the inside of the pipeline and a camera head of an imaging camera for imaging and recording the inside of the pipeline are provided.

本発明のケーブル収容管点検装置において、前記地中埋設管路の距離を測定する測距部と、前記管路内を撮像して記録する撮像カメラと、前記測距部により計測される位置に応じて前記撮像カメラによる撮像を制御する制御部と、前記撮像カメラによって撮像したデータを記憶する記憶部とを備え、前記測距部、前記撮像カメラの本体部分、前記記憶部及び前記制御部を密封して内蔵することを特徴とする。   In the cable housing pipe inspection device of the present invention, the distance measuring unit for measuring the distance of the underground buried pipe, the imaging camera for imaging and recording the inside of the pipe, and the position measured by the distance measuring unit And a control unit that controls imaging by the imaging camera and a storage unit that stores data captured by the imaging camera, and includes the ranging unit, the main body of the imaging camera, the storage unit, and the control unit. It is sealed and built in.

本発明のケーブル収容管点検装置において、前記撮像カメラは複数台設けられ、前記複数の撮像カメラの各カメラヘッドは、前記マンドレル形状の管路軸方向の面上で、当該通し穴の周囲にそれぞれ管路軸中心から等角配置され、前記ケーブルの周囲の管円周方向３６０度全体の管路内を点検可能にしたことを特徴とする。   In the cable housing tube inspection device according to the present invention, a plurality of the imaging cameras are provided, and each camera head of the plurality of imaging cameras is disposed around the through hole on the surface of the mandrel-shaped pipe axis direction. It is arranged equiangularly from the center of the pipe axis, and the inside of the pipe in the entire pipe circumferential direction 360 degrees around the cable can be inspected.

本発明のケーブル収容管点検装置において、前記複数の撮像カメラは、各々が画角１８０度広角レンズのカメラヘッドを有する２台の撮像カメラからなることを特徴とする。   In the cable housing tube inspection device according to the present invention, each of the plurality of imaging cameras includes two imaging cameras each having a camera head having a wide angle lens with a field angle of 180 degrees.

本発明のケーブル収容管点検装置において、前記複数の撮像カメラは、各々が画角１２０度広角レンズのカメラヘッドを有する３台の撮像カメラからなることを特徴とする。   In the cable housing tube inspection device according to the present invention, each of the plurality of imaging cameras includes three imaging cameras each having a camera head with a wide-angle lens having a field angle of 120 degrees.

管内の収容ケーブルをリフトアップし、かつ複数の広角カメラヘッドにより、今まで点検できなかったケーブル下の点検が可能となる。つまり、管内牽引時にケーブル収容管点検装置本体が回転したり、傾いても広角レンズによりリフトアップしたケーブル下も含め管円周方向３６０度全体の点検を可能とした。   The accommodation cable in the pipe is lifted up and a plurality of wide-angle camera heads allow inspection under the cable, which could not be inspected until now. In other words, it is possible to inspect the entire 360 degrees in the pipe circumferential direction including under the cable lifted up by the wide-angle lens even if the cable housing pipe inspection device body rotates or tilts during pulling in the pipe.

また、ケーブル収容管点検装置内部に記憶部、測距部、制御部などを内蔵しカメラコード類を排除した構造とするとともに、装置本体の外径自体でマンドレル機能（通過性機能）を有するように構成したため、詳細なデータを位置情報と共に記録することができるようになる。   In addition, the cable housing tube inspection device has a built-in storage unit, distance measuring unit, control unit, etc. so that the camera cord is eliminated, and the outer diameter of the device body itself has a mandrel function (passability function). Thus, detailed data can be recorded together with position information.

（Ａ），（Ｂ）は、本発明による第１の実施形態のケーブル収容管点検装置の正面図及び断面図である。(A), (B) is the front view and sectional drawing of the cable accommodation pipe inspection apparatus of 1st Embodiment by this invention. 本発明による第１の実施形態のケーブル収容管点検装置の正面図及び断面図である。It is the front view and sectional drawing of the cable accommodation pipe inspection apparatus of 1st Embodiment by this invention. 本発明による第１の実施形態のケーブル収容管点検装置による点検態様を例示する図である。It is a figure which illustrates the inspection aspect by the cable accommodation pipe inspection apparatus of 1st Embodiment by this invention. （Ａ），（Ｂ）は、本発明による第２の実施形態のケーブル収容管点検装置の正面図及び断面図である。(A), (B) is the front view and sectional drawing of the cable accommodation pipe inspection apparatus of 2nd Embodiment by this invention.

以下、図面を参照して、本発明による各実施形態のケーブル収容管点検装置を説明する。   Hereinafter, with reference to drawings, the cable accommodation pipe inspection device of each embodiment by the present invention is explained.

〔第１の実施形態〕
図１（Ａ），（Ｂ）は、本発明による第１の実施形態のケーブル収容管点検装置の正面図及び断面図である。図２は、本発明による第１の実施形態のケーブル収容管点検装置の正面図及び断面図である。図３は、本発明による第１の実施形態のケーブル収容管点検装置による点検態様を例示する図である。本実施形態のケーブル収容管点検装置１は、ケーブル８０が収容されている地中埋設管路の目視点検のための装置である。 [First Embodiment]
1A and 1B are a front view and a cross-sectional view of a cable housing tube inspection device according to a first embodiment of the present invention. FIG. 2 is a front view and a cross-sectional view of the cable housing tube inspection device according to the first embodiment of the present invention. FIG. 3 is a diagram illustrating an inspection mode by the cable housing tube inspection device according to the first embodiment of the present invention. The cable housing pipe inspection device 1 of the present embodiment is a device for visual inspection of underground buried pipes in which cables 80 are housed.

ケーブル収容管点検装置１は、地中埋設管路１００に合わせて設定した外形寸法及び長さ寸法のマンドレル形状１０を有している。また、ケーブル収容管点検装置１は、マンドレル形状の管路軸方向にケーブル８０を通過させるための通し穴２０を有しており、マンドレル形状の管路軸方向の面上で、通し穴の径Ｌ１はケーブル８０を通過させるのに十分な寸法とし、マンドレル形状の径Ｌ２は、地中埋設管路１００の管路径Ｌ３を有する管路の通過性確認を行うのに十分な寸法とする。   The cable housing pipe inspection device 1 has a mandrel shape 10 having an outer dimension and a length dimension set in accordance with the underground pipe line 100. In addition, the cable housing pipe inspection device 1 has a through hole 20 for allowing the cable 80 to pass in the mandrel-shaped pipe axis direction, and the diameter of the through hole on the surface of the mandrel-shaped pipe axis direction. L1 is set to a size sufficient to pass the cable 80, and the mandrel-shaped diameter L2 is set to a size sufficient for confirming the passage of the pipe having the pipe diameter L3 of the underground pipe 100.

ケーブル収容管点検装置１は、マンドレル形状の管路軸方向の少なくとも一方の面にはこの装置本体を牽引するための牽引ロープ６０，７０が設けられ、さらに、管路内を照射する光源の例として３組のＬＥＤ白色光源（ＬＥＤａ１，ＬＥＤａ２の組，ＬＥＤｂ１，ＬＥＤｂ２の組，ＬＥＤｃ１，ＬＥＤｃ２の組）と、各組のＬＥＤ白色光源の中央には、管路内を撮像して記録する撮像カメラのカメラヘッド３０ａ，３０ｂ，３０ｃがそれぞれ設けられている（図１（Ａ）参照）。   The cable housing tube inspection device 1 is provided with tow ropes 60 and 70 for towing the device main body on at least one surface in the mandrel-shaped tube axis direction, and further an example of a light source that irradiates the inside of the tube. 3 sets of LED white light sources (LEDa1, LEDa2 set, LEDb1, LEDb2 set, LEDc1, LEDc2 set), and an imaging camera for imaging and recording in the center of each set of LED white light sources Camera heads 30a, 30b, and 30c are provided (see FIG. 1A).

また、ケーブル収容管点検装置１は、撮像に必要な機器を内蔵するための収納領域４０や各機器を制御するための制御部５０が内部に設けられており、具体的には、ケーブル収容管点検装置１は、ＧＰＳやレーザー方式等で構成される地中埋設管路１００の距離を測定する測距部４０ｂと、各カメラヘッド３０ａ，３０ｂ，３０ｃに対応する管路内を撮像して記録する撮像カメラ（図示せず）と、測距部４０ｂにより計測される位置に応じて撮像カメラによる撮像を制御する制御部５０と、撮像カメラによって撮像したデータを記憶する記憶部４０ａとを備えており、測距部４０ｂ、撮像カメラの本体部分、記憶部４０ａ及び制御部５０を密封して内蔵されている。   Further, the cable housing tube inspection device 1 is provided with a housing area 40 for incorporating devices necessary for imaging and a control unit 50 for controlling each device, specifically, the cable housing tube. The inspection device 1 captures and records the distance measuring unit 40b that measures the distance of the underground pipe line 100 configured by GPS, a laser method, and the like and the pipe lines corresponding to the camera heads 30a, 30b, and 30c. An imaging camera (not shown), a control unit 50 that controls imaging by the imaging camera according to the position measured by the distance measuring unit 40b, and a storage unit 40a that stores data captured by the imaging camera. The distance measuring unit 40b, the main body of the imaging camera, the storage unit 40a, and the control unit 50 are sealed and incorporated.

つまり、本実施形態では、複数の撮像カメラとして、各々が画角１２０度広角レンズのカメラヘッド３０ａ，３０ｂ，３０ｃを有する３台の撮像カメラから構成され、各カメラヘッド３０ａ，３０ｂ，３０ｃは、マンドレル形状の管路軸方向の面上で、当該通し穴２０の周囲にそれぞれ管路軸中心から等角配置されている。これにより、ケーブル８０を敷設したままで、ケーブル８０の存在に起因して撮像できない領域をなくし、ケーブル８０の周囲の管円周方向３６０度全体の管路内を点検可能にした。   That is, in the present embodiment, each of the plurality of imaging cameras is configured by three imaging cameras each having camera heads 30a, 30b, and 30c having a wide-angle lens with an angle of view of 120 degrees, and each of the camera heads 30a, 30b, and 30c includes: On the surface of the mandrel shape in the pipe axis direction, they are arranged equiangularly around the through hole 20 from the center of the pipe axis. As a result, the area where imaging is not possible due to the presence of the cable 80 is eliminated while the cable 80 is laid, and the inside of the entire pipe circumference of 360 degrees around the cable 80 can be inspected.

図３を参照するに、マンホールＭ１及びＭ２間を結ぶケーブル８０が収容されている地中埋設管路１００の点検をする際に、試験者Ｈは、牽引ロープ６０，７０を用いてケーブル収容管点検装置１を牽引するのみで、マンホールＭ１及びＭ２間の管路位置に応じた管路内の様子を撮像及び記録することができる。尚、図３では、リール９０に巻かれる牽引ロープ６０で接続されたケーブル収容管点検装置１を、他方の面に設けた牽引ロープ７０で牽引して、牽引ロープ７０側に設けた各カメラヘッド３０ａ，３０ｂ，３０ｃによって管路内を撮像する例を示しているが、これに限定するものではない。即ち、牽引ロープ７０側に設けた各カメラヘッド３０ａ，３０ｂ，３０ｃによって管路内を撮像する際に、リール９０による巻上げ時に管路内を撮像するとしてもよい。牽引ロープ６０，７０側の双方に所定のカメラヘッドを設けてもよく、この場合、マンドレル機能を実行させる前後の様子を撮像することができる。   Referring to FIG. 3, when inspecting the underground conduit 100 in which the cable 80 connecting the manholes M <b> 1 and M <b> 2 is accommodated, the tester H uses the tow ropes 60 and 70 to connect the cable accommodating tube. Only by pulling the inspection device 1, it is possible to image and record the state in the pipeline according to the pipeline position between the manholes M <b> 1 and M <b> 2. In FIG. 3, each camera head provided on the traction rope 70 side by pulling the cable housing pipe inspection device 1 connected by the traction rope 60 wound around the reel 90 with the traction rope 70 provided on the other surface. Although the example which images the inside of a pipe line by 30a, 30b, 30c is shown, it is not limited to this. That is, when the inside of the pipeline is imaged by the camera heads 30a, 30b, and 30c provided on the traction rope 70 side, the inside of the pipeline may be imaged when the reel 90 is wound up. A predetermined camera head may be provided on both of the tow ropes 60 and 70, and in this case, the state before and after the mandrel function is executed can be imaged.

また、ケーブル収容管点検装置１は、組み立ての容易さを考慮して、装置本体を管路軸方向に２分割可能なマンドレル形状ユニットとするのがよい。各マンドレル形状ユニットに、ケーブル８０を挟み込んだ後、ビス等で止める構造とすることにより、比較的簡単に、ケーブル８０が敷設されたままの状態で、ケーブル収容管点検装置１を設置することができる。   The cable housing pipe inspection device 1 is preferably a mandrel-shaped unit that can be divided into two in the pipe axis direction in consideration of ease of assembly. The cable housing pipe inspection device 1 can be installed in a relatively simple state with the cable 80 still laid by adopting a structure in which the cable 80 is sandwiched between each mandrel-shaped unit and then stopped with a screw or the like. it can.

次に、図４を参照して、本発明による第２の実施形態のケーブル収容管点検装置を説明する。尚、第１の実施形態と同様な構成要素には同一の参照番号を付している。   Next, with reference to FIG. 4, a cable housing pipe inspection device according to a second embodiment of the present invention will be described. In addition, the same reference number is attached | subjected to the component similar to 1st Embodiment.

〔第２の実施形態〕
図４（Ａ），（Ｂ）は、本発明による第２の実施形態のケーブル収容管点検装置の正面図及び断面図である。本発明による第２の実施形態のケーブル収容管点検装置１ａは、前述した第１の実施形態と比較して、各々が画角１８０度広角レンズのカメラヘッドを有する２台の撮像カメラで構成した点で相違するのみであり、第１の実施形態の利点や運用方法等の全てを包含する。 [Second Embodiment]
4A and 4B are a front view and a cross-sectional view of a cable housing tube inspection device according to a second embodiment of the present invention. The cable housing tube inspection device 1a according to the second embodiment of the present invention is composed of two imaging cameras each having a camera head with a wide-angle lens having a field angle of 180 degrees as compared with the first embodiment described above. The only difference is that it includes all of the advantages and operation methods of the first embodiment.

管路内を照射する光源としても、２組のＬＥＤ白色光源（ＬＥＤｄ１，ＬＥＤｄ２の組，ＬＥＤｅ１，ＬＥＤｅ２の組）と、各組のＬＥＤ白色光源の中央には、管路内を撮像して記録する撮像カメラのカメラヘッド３０ｄ，３０ｅがそれぞれ設けられている（図４（Ａ）参照）。   As a light source for illuminating the inside of the pipeline, two sets of LED white light sources (a set of LEDd1 and LEDd2 and a set of LEDe1 and LEDe2) are imaged and recorded in the center of each set of LED white light sources. Camera heads 30d and 30e of the imaging camera are provided (see FIG. 4A).

画角１８０度広角レンズとしては、例えば魚眼レンズと称されるものが知られており、より一般的に知られる画角１２０度広角レンズよりも高価になる傾向があるものの、装置全体の小型化または軽量化等の利点がある。   As a 180-degree wide-angle lens, for example, a so-called fish-eye lens is known, and although it tends to be more expensive than the more commonly known 120-degree wide-angle lens, There are advantages such as weight reduction.

本発明によれば、ケーブルが収容されている地中埋設管路でさえ、マンドレル効果と、管円周方向３６０度全体を点検することが可能となり、ケーブルが収容されている地中埋設管路を点検する用途に有用である。   According to the present invention, it is possible to inspect the entire mandrel effect and 360 degrees in the pipe circumferential direction, even in underground pipes in which cables are accommodated, and underground pipes in which cables are accommodated. This is useful for inspection.

１，１ａ ケーブル収容管点検装置
１０ マンドレル形状
２０ 通し穴
３０ａ，３０ｂ，３０ｃ，３０ｄ，３０ｅ カメラヘッド
４０ｂ 測距部
４０ａ 記憶部
５０ 制御部
６０，７０ 牽引ロープ
８０ ケーブル
９０ リール
１００ 地中埋設管路
ＬＥＤａ１〜ＬＥＤｅ２ ＬＥＤ白色光源 DESCRIPTION OF SYMBOLS 1,1a Cable accommodation pipe inspection apparatus 10 Mandrel shape 20 Through-hole 30a, 30b, 30c, 30d, 30e Camera head 40b Distance measuring part 40a Storage part 50 Control part 60,70 Tow rope 80 Cable 90 Reel 100 Underground pipe line LEDa1-LEDe2 LED white light source

Claims (5)

ケーブルが収容されている地中埋設管路の目視点検のためのケーブル収容管点検装置であって、
前記地中埋設管路に合わせて設定した外形寸法及び長さ寸法のマンドレル形状を有し、
前記マンドレル形状の管路軸方向に前記ケーブルを通過させるための通し穴を有し、
当該マンドレル形状の管路軸方向の少なくとも一方の面には牽引ロープが設けられるとともに、管路内を照射する光源及び管路内を撮像して記録する撮像カメラのカメラヘッドが設けられていることを特徴とするケーブル収容管点検装置。 A cable storage tube inspection device for visual inspection of underground underground conduits in which cables are stored,
It has a mandrel shape with an outer dimension and a length dimension set according to the underground pipe line,
Having a through hole for allowing the cable to pass in the mandrel-shaped pipe axis direction;
A pulling rope is provided on at least one surface of the mandrel shape in the pipe axis direction, and a light source that irradiates the inside of the pipe and a camera head of an imaging camera that picks up and records the inside of the pipe are provided. Cable receiving pipe inspection device characterized by. 前記地中埋設管路の距離を測定する測距部と、
前記管路内を撮像して記録する撮像カメラと、
前記測距部により計測される位置に応じて前記撮像カメラによる撮像を制御する制御部と、
前記撮像カメラによって撮像したデータを記憶する記憶部とを備え、
前記測距部、前記撮像カメラの本体部分、前記記憶部及び前記制御部を密封して内蔵することを特徴とする、請求項１に記載のケーブル収容管点検装置。 A distance measuring unit for measuring the distance of the underground underground conduit;
An imaging camera for imaging and recording the inside of the pipeline;
A control unit for controlling imaging by the imaging camera according to a position measured by the distance measuring unit;
A storage unit for storing data captured by the imaging camera;
The cable housing tube inspection device according to claim 1, wherein the distance measuring unit, the main body of the imaging camera, the storage unit, and the control unit are sealed and incorporated. 前記撮像カメラは複数台設けられ、
前記複数の撮像カメラの各カメラヘッドは、前記マンドレル形状の管路軸方向の面上で、当該通し穴の周囲にそれぞれ管路軸中心から等角配置され、
前記ケーブルの周囲の管円周方向３６０度全体の管路内を点検可能にしたことを特徴とする、請求項２に記載のケーブル収容管点検装置。 A plurality of the imaging cameras are provided,
Each camera head of the plurality of imaging cameras is equiangularly arranged from the center of the pipe axis around the through hole on the surface in the pipe axis direction of the mandrel shape,
The cable accommodation pipe inspection device according to claim 2, wherein the inside of the pipe line around 360 degrees in the pipe circumferential direction can be inspected. 前記複数の撮像カメラは、各々が画角１８０度広角レンズのカメラヘッドを有する２台の撮像カメラからなることを特徴とする、請求項２又は３に記載のケーブル収容管点検装置。   4. The cable housing tube inspection device according to claim 2, wherein each of the plurality of imaging cameras includes two imaging cameras each having a camera head having a wide-angle lens having a field angle of 180 degrees. 前記複数の撮像カメラは、各々が画角１２０度広角レンズのカメラヘッドを有する３台の撮像カメラからなる、請求項２又は３に記載のケーブル収容管点検装置。   4. The cable housing tube inspection device according to claim 2, wherein each of the plurality of imaging cameras includes three imaging cameras each having a camera head having a wide-angle lens having a field angle of 120 degrees.
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