Sewer PFM Device Segmentation for Lateral Access
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Solution Overview
Problem
The confined environment and limited accessibility of sewer pipes complicate cleaning, measuring, and video inspection, especially when service lateral pipes are involved, often requiring undesirable access methods such as digging into homeowners' yards and incurring additional costs and time.
Innovation Solution
A Preparation From Main (PFM) device that allows for the insertion and control of separately controllable tools, including a camera and clean out tool, through support lines from a support vehicle, enabling inspection and preparation of lateral sewer pipes without the need for a clean out or alternate access passage, along with a Measurement From Main (MFM) device for precise pipe measurements.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If access is gained through the main sewer pipe, then invasive access methods such as digging into homeowners' yards are avoided, but the complexity of navigating confined environments and limited accessibility increases
Solution Approach 1:
The system divides the inspection and preparation functions into separate modular tools (camera tool, clean out tool, measurement tool) that can be independently deployed and controlled through the main sewer pipe, allowing each tool to be optimized for its specific function while accessing lateral pipes without invasive methods
Solution Approach 2:
The PFM device acts as an intermediary platform that provides access to lateral sewer pipes through the main pipe, eliminating the need for direct access through property lines while enabling deployment of various inspection and preparation tools
2Adaptability or versatility
If multiple tools are inserted into the lateral pipe, then inspection and preparation functions are improved, but the complexity of controlling and managing multiple tools increases
Solution Approach 1:
The PFM device serves as a universal platform that can deploy and control multiple different types of tools (camera, clean out, measurement) through a single access point, making the system multi-functional while centralizing control mechanisms
Solution Approach 2:
Instead of bringing multiple complex control systems into the confined lateral pipe, the control mechanisms are inverted and positioned outside in the main pipe, simplifying the environment within the lateral while maintaining full control capability
3Ease of operation
If separate access points are created for each tool, then tool deployment is simplified, but additional costs and time for installation are incurred
Solution Approach 1:
The system merges multiple tool deployment functions into a single access point (the main sewer pipe), allowing camera, clean out, and measurement tools to be sequentially or simultaneously deployed through the same opening, eliminating the need for multiple separate access points
4Object-affected harmful factors
If the PFM device is used to access lateral pipes from the main, then invasive access methods are avoided, but the ability to reach all lateral pipes may be limited
Solution Approach 1:
The PFM device and its attached tools are designed to be dynamically positionable and reconfigurable within the main sewer pipe, allowing the system to adapt to different lateral pipe locations and configurations by moving the deployment point along the main pipe
Data Source
AI summary
A sewer preparation from the main (PFM) device provides for the inspection and preparation of the sewer pipe from the main sewer pipe. The PFM device provides for the insertion of one or more individual and separately controllable tools into the sewer pipe. The tools include a clean out tool and a camera. Each of the tools is controlled separately such that each tool can be inserted and retracted from the lateral as desired. A method includes the steps of inserting and operating separately controllable tools from a single preparation device that provides access to the lateral without a cleanout or other alternate access passage.