Measuring Device Frequency Check for Interference Avoidance
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Solution Overview
Problem
Measuring devices often interfere with other devices operating in the same frequency range, leading to unreliable measurement results due to interference from signals like telecommunication and data transmission devices.
Innovation Solution
A measuring device with a control unit that checks for independent signals before transmitting a measurement signal, allowing it to prevent or modify the signal to avoid interference, using ultra-broadband operation and power management to minimize interference and ensure accurate measurements.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the measuring device transmits a measurement signal in a frequency range, then measurement capability is improved, but interference with other devices occurs
Solution Approach 1:
The control unit performs a preliminary check of the frequency range for the presence of other signals before transmitting the measurement signal. This preliminary action allows the system to detect potential interference sources in advance and prevent transmission that would cause harmful interference, thereby resolving the contradiction between measurement reliability and interference generation.
Solution Approach 2:
The system dynamically adjusts its transmission behavior based on real-time detection of the frequency range. When other signals are detected, the control unit modifies or prevents transmission; when the frequency range is clear, transmission proceeds. This dynamic adaptation allows the measuring device to maintain measurement reliability while minimizing harmful interference to other devices.
2Measurement precision
If the measuring device uses high power transmission, then measurement accuracy is improved, but interference with other devices increases
Solution Approach 1:
Before transmitting high-power measurement signals, the control unit preliminarily checks the frequency range for the presence of other devices. This preliminary detection allows the system to determine whether high-power transmission is appropriate, thereby maintaining measurement accuracy when needed while preventing interference when other devices are present.
Solution Approach 2:
The system uses feedback from the frequency range check to control transmission power. The control unit receives information about the presence of other signals and adjusts transmission power accordingly - using high power for accurate measurements when the frequency range is clear, and reducing or preventing transmission when other devices are detected, thus resolving the contradiction between measurement precision and harmful interference.
3Object-generated harmful factors
If the control unit checks the frequency range for signals, then interference is reduced, but measurement time is increased
Solution Approach 1:
The frequency range check is performed as a preliminary action before the actual measurement transmission. By conducting this check in advance and using efficient detection methods, the system minimizes the time added by the check while ensuring interference is reduced during the subsequent measurement process.
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
The solution enables reliable measurement results by detecting and avoiding interfering signals, reducing spectral energy density, and adjusting transmission power to minimize interference, thereby improving measurement accuracy and reducing potential disruptions to other devices.
Implementation Method 1
a sensor unit for receiving an evaluation signal induced by the measurement signal
Data Source
AI summary
The invention relates to a measuring device comprising a transmitter (6) for transmitting (38, 60) a measuring signal (16) that lies within a frequency range, a sensor (8) for receiving (40, 62) an evaluation signal (20) that has been induced by the measuring signal (16) and a control unit (10) for evaluating (42, 66) the evaluation signal (20) to produce a measured result. According to the invention, the function of the control unit (10) is to check the frequency range before the transmission (38, 60) of the measuring signal (16) for the presence of a signal (28) that is independent of the measuring signal (16).