Water Consumption Data Transmission Frequency Segmentation
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Solution Overview
Problem
Existing wireless transmission systems for consumption data face challenges in maintaining interference-free long-range reception due to frequent short-range data transmissions, leading to data loss and increased operational effort, especially when using the same carrier frequency for both types of data.
Innovation Solution
Transmitting short-range and long-range data telegrams on carrier frequencies with a small offset, using bandpass filtering and superimposition stages to convert frequencies to intermediate frequencies, allowing for effective interference suppression and reducing collisions, while utilizing software-based signal processors for evaluation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If short-range and long-range data telegrams are transmitted on the same carrier frequency, then transmission infrastructure is simplified, but interference between telegrams increases causing data loss
Solution Approach 1:
The patent segments the transmission spectrum by introducing a second carrier frequency specifically for long-range telegrams, separating them from the first carrier frequency used for short-range telegrams. This frequency segmentation eliminates interference between the two telegram types while maintaining infrastructure simplicity.
Solution Approach 2:
The patent adds a frequency dimension to the transmission system by utilizing two different carrier frequencies (first and second carrier frequencies) instead of relying solely on time-division or code-division methods. This dimensional approach allows simultaneous transmission of both telegram types without mutual interference.
2Productivity
If frequent short-range telegrams are transmitted, then mobile receiver data acquisition is ensured, but long-range telegram reception is disrupted
Solution Approach 1:
The patent segments the transmission timeline and frequency spectrum such that short-range telegrams use the first carrier frequency with high transmission frequency, while long-range telegrams use the second carrier frequency with low transmission frequency. This segmentation allows both high data acquisition rate for mobile receivers and reliable long-range transmission without mutual disruption.
3Object-affected harmful factors
If conventional filter techniques are used to suppress short telegram interference, then filtering is achieved, but overshooting extends interference duration
Solution Approach 1:
The patent introduces a second carrier frequency as an intermediary channel for long-range telegrams, physically separating them from the short-range telegram channel. This intermediary frequency approach eliminates the need for conventional filters that cause overshooting, as the interference is blocked by frequency separation rather than temporal filtering.
4Length of stationary object
If spread spectrum coding is used for long-range transmission, then transmission range is extended, but hardware complexity and synchronization requirements increase
Solution Approach 1:
The patent extracts the range extension function from complex spread spectrum coding and implements it through a simpler frequency separation approach. By using a second carrier frequency for long-range telegrams, the system achieves extended range without requiring spread spectrum coding, correlation receivers, or complex synchronization mechanisms.
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 approach significantly reduces data loss and operational effort by ensuring interference-free long-range transmission, allowing for the same data rate to be used for both types of telegrams and minimizing hardware requirements, with improved demodulation efficiency and reduced energy consumption.
Implementation Method 1
using bandpass filtering and superimposition stages to convert frequencies to intermediate frequencies
Implementation Method 2
using bandpass filtering and superimposition stages to convert frequencies to intermediate frequencies
Data Source
Figure 1~2
AI summary
The method involves transmitting the short-range data telegram (T1) and long-range data telegram (T2) at short-range frequency (f1) and long-range frequency (f2) by a transmitter through local area network (LAN), wireless local area network (WLAN) and DSLstandard. A filter (F) is provided for suppressing or attenuating the short-range frequency with respect to the long-range frequency, during the reception of long-range data telegram at a receiver. An independent claim is included for device for transmitting water consumption data of housing complex to receiver.