Wireless Hydrant Flow Testing System
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Solution Overview
Problem
Current flow testing methods for hydrants in water supply systems require multiple personnel to accurately measure flow and pressure characteristics, leading to increased costs and potential inaccuracies due to the need for simultaneous measurements across geographically separated hydrants, which complicates the testing process and can result in unnecessary water waste.
Innovation Solution
A flow testing system comprising a flow unit and a pressure unit that can operate independently of each other, allowing a single person to conduct flow testing by measuring static and pitot pressures simultaneously and transmitting data wirelessly for recording, thereby reducing personnel requirements and improving accuracy.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If multiple personnel are used to conduct flow testing at geographically separated hydrants, then measurement accuracy is improved through simultaneous measurements, but personnel costs and operational complexity increase
Solution Approach 1:
The patent combines multiple measurement functions (flow measurement at first hydrant, pressure measurement at second hydrant) into a single integrated testing system that can be operated by one person. The system merges the capabilities of multiple operators into one automated unit that performs coordinated measurements across geographically separated hydrants.
Solution Approach 2:
The patent replaces the mechanical coordination system requiring multiple human operators with an automated electronic system using transmitters and receivers. The mechanical aspect of human coordination is substituted with electronic data transmission and automated control, allowing single-person operation while maintaining measurement accuracy.
2Measurement precision
If multiple personnel are deployed for flow testing, then simultaneous measurements can be taken at separated hydrants, but personnel costs increase
Solution Approach 1:
The system enables self-service operation where a single operator can independently conduct complete flow testing without requiring coordination with additional personnel. The automated transmitters and receivers allow the system to self-coordinate measurements across multiple hydrants, eliminating the need for multiple human operators.
Solution Approach 2:
The patent introduces transmitters and receivers as intermediary devices that facilitate communication and data transfer between geographically separated measurement points. These intermediaries replace the need for human-to-human coordination, allowing simultaneous measurements to be achieved with a single operator.
3Measurement precision
If manual coordination is used for simultaneous measurements at multiple hydrants, then measurement accuracy is maintained, but water waste increases due to timing difficulties
Solution Approach 1:
The system uses feedback through transmitters and receivers to provide real-time data transmission between measurement points. This immediate feedback loop allows the single operator to precisely coordinate the timing of measurements and flow termination, ensuring measurements are completed accurately without unnecessary prolonged flow that would waste water.
Data Source
AI summary
A flow testing system comprises a flow unit for interfacing with a flow hydrant, a pressure unit for interfacing with a test hydrant, a transmitter in a first one of the units to transmit data to a second one of the units, a receiver in the second unit to receive data from the transmitter, and a data storage medium in the second unit to record data. A method includes providing flow and pressure units, interfacing the pressure unit to a test hydrant and the flow unit to a flow hydrant, measuring static pressure by the pressure unit, initiating water flow through the flow hydrant, measuring pitot pressure in the flow, measuring residual pressure in the test hydrant, transmitting the residual pressure measurement from the pressure to the flow unit, and recording the pitot and residual pressure measurements.