Hydronic Floor Heating Sensor Cable Extension and Mode Simplification
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Hydronic floor heating systems face challenges in energy efficiency and user complexity due to the need for multiple temperature settings and limited cable lengths for thermal sensors, leading to increased installation time and potential for incorrect settings.
Innovation Solution
The system introduces a radiant floor optimization mode, a vacation mode that simplifies temperature settings, and a combination of hardware and software filters to extend cable length and improve sensor accuracy using pseudo-random jittering and capacitive low pass filtering.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If multiple temperature settings are used for different modes, then thermal comfort is improved, but device complexity increases
Solution Approach 1:
The patent segments the temperature control into distinct operational modes (occupancy mode and vacation mode), each with its own simplified temperature setting. This allows the system to provide different temperature profiles for different situations without requiring the user to manage all settings simultaneously, reducing perceived complexity while maintaining thermal comfort.
Solution Approach 2:
Instead of requiring users to set multiple temperature parameters manually, the system inverts the approach by providing predefined temperature settings for different modes and allowing users to simply select the desired mode. This reverses the complexity from the user side to the system side, improving ease of operation.
2Length of moving object
If cable length for thermal sensors is extended, then installation flexibility is improved, but measurement precision deteriorates
Solution Approach 1:
The patent introduces an intermediary signal conditioning circuit between the thermal sensor and the control system. This intermediary component compensates for signal degradation over extended cable lengths through amplification and filtering, allowing the system to maintain measurement precision while supporting longer cable runs for installation flexibility.
3Measurement precision
If standard reading frequency is used, then system simplicity is maintained, but measurement accuracy deteriorates
Solution Approach 1:
The patent implements dynamic reading frequency adjustment where the system varies the sampling rate based on operational conditions. During critical periods or when temperature changes are detected, the reading frequency increases to improve accuracy. During stable periods, the frequency decreases to maintain system simplicity and reduce processing load.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This solution reduces energy consumption, simplifies user interactions, and extends sensor cable lengths beyond traditional limits, enhancing both user experience and installation efficiency while maintaining thermal comfort.
Implementation Method 1
The temperature sensor may be wired to thermostat terminals and a measuring circuit. The measuring circuit may contain a capacitive low pass filter which filtrates interference at higher frequencies.
Implementation Method 2
Modifying the 300 Hz reading principle base on implementation of Pseudo-random jittering of a reading event improving short-term accuracy of the individual readings
Data Source
AI summary
A hydronic floor heating system as it relates to an HVAC apparatus, approach and system. Aspects of the present system and approach may include a radiant floor optimization mode, low floor temperature in vacation mode, modifying a 300 Hz, or so, reading principle base on implementation of Pseudo-random jittering of a reading event improving short-term accuracy of the individual readings, and a combination of hardware and software filters for using thermal sensors with extended cable length.