Abstract

Proposed is a method of measuring the slope of a drainpipe while moving through the drainpipe. The method includes following steps: a) continuously measuring a slope of a pipe using a slope sensor disposed in a vehicle when the vehicle moves; b) measuring distances to a ceiling of the pipe in real time through non-contact sensors disposed at four positions, that is, at both sides of front and rear portions the vehicle, the step b) being performed simultaneously with the step a); and c) calculating slope differences, which are the degrees of inclination to the front, rear, left, and right using trigonometry and then correcting the slope by reflecting the slope differences to the slope measured in the step a), when there are differences in the distances measured in step b).

IPC Classes  ?

• G01C 9/06 - Electric or photoelectric indication or reading means
• F16L 55/32 - Constructional aspects of the propulsion means, e.g. towed by cables being self-contained
• G01C 11/02 - Picture-taking arrangements specially adapted for photogrammetry or photographic surveying, e.g. controlling overlapping of pictures
• G01C 11/04 - Interpretation of pictures
• E03F 3/06 - Methods of, or installations for, laying sewer pipes
• F16L 101/30 - Inspecting, measuring or testing

Abstract

The objective of the present invention is to provide an old pipe rehabilitation and IoT-based maintenance and management method which can increase the adhesion between a rehabilitation pipe and the inside of a water or sewer pipe, and, after the rehabilitation pipe is provided, can perform real-time monitoring and maintenance and management by using IoT technology. In order to accomplish the objective, the present invention comprises the steps of: inspecting the inside of an old pipe, and determining a pipe-manufacturing diameter through structural calculation; performing pretreatment by removing contaminants and other material stuck inside the old pipe by means of a cleaning machine; providing a buoyancy prevention means in the longitudinal direction of the old pipe so that same is brought into close contact along the inner periphery of the old pipe; assembling a pipe-manufacturing apparatus according to the determined pipe-manufacturing diameter, and providing same inside the old pipe; performing pipe-manufacturing extrusion on a profile supplied from the pipe-manufacturing apparatus so as to rotate and move same forward therein along the buoyancy prevention means, thereby producing a rehabilitation pipe; providing a pipeline sensing means between the rehabilitation pipe and the old pipe; uniformly injecting a filler between the old pipe and the rehabilitation pipe so as to fix same, in a state in which the center of the rehabilitation pipe corresponds to the center of the old pipe through the buoyancy prevention means; finishing the end portion of the rehabilitation pipe; and monitoring, in real time, whether there is a water leakage by means of the pipeline sensing means and transmitting data so as to perform maintenance and management.

IPC Classes  ?

• F16L 55/162 - Devices for covering leaks in pipes or hoses, e.g. hose-menders from inside the pipe
• F16L 55/18 - Appliances for use in repairing pipes
• F16L 55/26 - Pigs or moles, i.e. devices movable in a pipe or conduit with or without self-contained propulsion means
• G01M 3/00 - Investigating fluid tightness of structures
• F16L 101/30 - Inspecting, measuring or testing
• F16L 101/10 - Treating the inside of pipes

Abstract

The present invention relates to a method for measuring an inclination of a sewage pipe conduit, which measures an inclination of a sewage pipe conduit while a movable body moves along the inside of the sewage pipe conduit. The method for measuring an inclination of a sewage pipe conduit comprises the steps of: (a) sequentially measuring an inclination of a pipe conduit by using an inclination sensor embedded in a movable body when the movable body moves; (b) measuring a distance to a ceiling surface of the pipe conduit in real time by using non-contact sensors disposed at four places including the front, rear, left, and right sides in the both sides of the movable body, while the step (a) is simultaneously performed; and (c) correcting the inclination by obtaining, by means of trigonometric functions, an inclination error which is the degree of tilt from front to back and left to right and reflecting the inclination error to the inclination having been measured in the step (a), when the distance values having been measured in the step (b) are different from each other.

IPC Classes  ?

• F16L 55/32 - Constructional aspects of the propulsion means, e.g. towed by cables being self-contained
• G01C 9/06 - Electric or photoelectric indication or reading means
• G01B 11/02 - Measuring arrangements characterised by the use of optical techniques for measuring length, width, or thickness
• E03F 3/06 - Methods of, or installations for, laying sewer pipes
• F16L 101/30 - Inspecting, measuring or testing