Sewer Rinsing Head Wireless Data Transmission
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Solution Overview
Problem
Existing sewer inspection and cleaning systems face issues with cable wear and damage due to harsh environments, leading to increased setup times and costs, and the risk of cable damage during insertion with high-pressure hoses, especially in explosion-proof environments.
Innovation Solution
A rinsing head with a WLAN module and antenna unit for wireless data transmission, integrated into the system to eliminate the need for physical cables, with the antenna unit positioned behind the rinsing nozzles to minimize water interference and a pressure-tight housing to protect electronic components.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If cable connections are used for data transmission, then data can be transmitted from the imaging means, but the cables are subject to high wear and may be damaged easily
Solution Approach 1:
The patent removes the cable connection from the system entirely and replaces it with a wireless WLAN module for data transmission. This extraction eliminates the harmful wear and damage that cables experience in the harsh sewer environment while maintaining the essential function of transmitting image and video data from the imaging means to the surface.
Solution Approach 2:
The patent substitutes the mechanical cable connection system with an electromagnetic wireless communication system (WLAN module). This replacement eliminates physical contact and mechanical wear while achieving the same data transmission function, thereby improving reliability and eliminating cable damage issues.
2Loss of time
If the cable is integrated into the rinsing hose, then setup time is reduced, but upon damage of the cable the entire rinsing hose has to be replaced
Solution Approach 1:
The patent extracts the data transmission function from the rinsing hose structure by implementing a separate wireless WLAN module. This eliminates the need to integrate cables into the hose, allowing the hose to be replaced independently if damaged while maintaining the wireless data transmission capability.
Solution Approach 2:
By replacing the mechanical cable-integrated-hose system with a wireless WLAN module, the patent decouples the data transmission function from the physical hose structure. This allows the hose to be maintained or replaced separately without affecting the electronic components, reducing overall maintenance costs.
3Reliability
If the antenna is arranged around the inlet opening for pressurized water, then water discharge interference is minimized, but the antenna position is constrained
Solution Approach 1:
The patent applies local quality by positioning the antenna specifically in the region around the inlet opening for pressurized water, where water discharge does not directly interfere with the antenna. This localized placement optimizes wireless transmission quality by avoiding the high-velocity water jet path while utilizing the structural geometry of the rinsing head.
Solution Approach 2:
The patent utilizes the three-dimensional space around the inlet opening by arranging the antenna in a radial pattern. This spatial arrangement allows the antenna elements to be positioned in optimal locations that avoid water interference zones while maintaining effective wireless communication coverage in all directions.
Data Source
AI summary
Provided is a rinsing head for a pipe or sewer inspection system, comprising imaging means arranged at the front end and rinsing means arranged axially behind the imaging means. The rinsing means comprises a number of rinsing nozzles with openings arranged on its lateral surface and spaced apart from each other circumferentially. The rinsing nozzles are connected via to an inlet opening for pressurized water provided at the rear end of the rinsing means. A WLAN module is arranged within the rinsing head and coupled to a camera module of the imaging means operatively. An antenna unit of the WLAN module is arranged axially behind the rinsing nozzles with at least one antenna arranged at least partially radially around the inlet opening for pressurized water. The WLAN module and the antenna unit are adapted to transmit image and/or video data provided by the camera module to a control/display means.