An inspection system comprising an inspection and/or maintenance device and a monitoring device is provided, wherein the inspection and/or maintenance device is operationally connected to the monitoring device via a wired communication connection, and the inspection and/or maintenance device has at least one image recording system, the at least one image recording system providing digital video data, and wherein the inspection and/or maintenance device has a transmitting device which is operationally coupled to the at least one image recording system and to the communication connection, and the monitoring device has a receiving device which is operationally coupled to the communication connection,
wherein the transmitting device and the receiving device are adapted to transmit the digital video data at least via a sub-section of the communication connection in an analog manner according to an AHD (analog high definition) standard. Furthermore, a correspondingly configured method for transmitting digital video data is provided.

A pipeline inspection device including a cable having a camera disposed on a distal end of the cable, where the camera and the cable are configured to be directed into a conduit. A first drum includes a rear wall, a front wall, and a side wall defining an interior, where the front wall has an opening providing access to the interior, and where the cable is disposed at least partially within the first drum. A stand supports the first drum, where the first drum is rotatably coupled to the stand. A hub houses electrical components of the pipeline inspection device. The hub is removably received in the interior of the first drum via the opening, where the hub is selectively removable from the first drum and insertable into an interior of a second drum.

A pipeline inspection device including a cable having a camera disposed on a distal end of the cable, where the camera and the cable are configured to be directed into a conduit. A first drum includes a rear wall, a front wall, and a side wall defining an interior, where the front wall has an opening providing access to the interior, and where the cable is disposed at least partially within the first drum. A stand supports the first drum, where the first drum is rotatably coupled to the stand. A hub houses electrical components of the pipeline inspection device. The hub is removably received in the interior of the first drum via the opening, where the hub is selectively removable from the first drum and insertable into an interior of a second drum.

Push-cables and associated apparatus and systems are disclosed. In one embodiment, a push-cable assembly for use with a pipe inspection system may include a push-cable element having a proximal end and a distal end, with a spring assembly having varying flexibility coupled to or near the distal end. The spring assembly may include an outer coiled spring having a proximal and a distal end, and an inner coiled spring nested at least partially within the outer coiled spring. A camera head and/or other elements such as a cutting or jetting apparatus may be coupled at or near the distal end.

Pipe inspection systems including a push-cable, jetter, and camera assembly are disclosed. A jetter nozzle may be configured to spin and/or propel the camera head within a pipe or other cavity. A cutter line may be attached to the camera head to clean obstructions. A sonde may be coupled to a camera head to generate magnetic field signals for use with a buried utility locator to locate a pipe or other cavity into which the camera head is deployed.

Pipe inspection systems including a push-cable, jetter, and camera assembly are disclosed. A jetter nozzle may be configured to spin and/or propel the camera head within a pipe or other cavity. A cutter line may be attached to the camera head to clean obstructions. A sonde may be coupled to a camera head to generate magnetic field signals for use with a buried utility locator to locate a pipe or other cavity into which the camera head is deployed.

A drilling apparatus has a work robot mounting a drilling blade and moving inside a main pipe and a photodetector for detecting the contour of an opening image formed on the inner surface of a pipe lining material by illumination light. The opening image is scanned, and a two-dimensional image corresponding to the opening image is generated based on the contour points P0 to P8 detected by the photodetector for display on a display unit. The amount of positional deviation between the center of the two-dimensional image on the display unit and the axial center C of the rotary shaft of the drilling blade is calculated, and the pipe lining material is drilled by moving the drilling blade by the amount of positional deviation in a direction in which the positional deviation is eliminated.

A pipe pig is provided with linked wheels, and at least a central wheel of the linked wheels is pivotally linked to adjacent wheels through a spring loaded connection that biases the central wheel out of straight line alignment with the adjacent wheels. The pipe pig may be used to negotiate tight bends in a pipe and carry sensing electronics.

A pipe pig is provided with linked wheels, and at least a central wheel of the linked wheels is pivotally linked to adjacent wheels through a spring loaded connection that biases the central wheel out of straight line alignment with the adjacent wheels. The pipe pig may be used to negotiate tight bends in a pipe and carry sensing electronics.

A channel tube inspection device 1 includes an inspection head 3, a pushing cable 5 and an elongated intermediate part 7 whose one end 7a is connected to the inspection head and whose other end 7b is connected to the pushing cable. The intermediate part 7 has a radial rigidity or, worded differently, bending rigidity gradually increasing over its length. The bending rigidity of the intermediate part 7 gradually increases from the inspection head 3 to the pushing cable 6. The intermediate part 7 is solid and has a gradually diminishing diameter from the pushing cable 5 to the inspection head 3. The intermediate part 7 is made of plastic, preferably PUR.