Feat: dynamic frequency

[sbtoonz]

Description

Title: Implement Dynamic Thresholding for Coil Frequency Monitoring

This update enhances the _check_hardware function by introducing a self-adjusting threshold mechanism for monitoring coil frequencies. The previous static multiplier method has been replaced with a data-driven approach that adapts to real-time frequency variations, improving anomaly detection accuracy.

Key Changes:

• Sliding Window Implementation: Utilizes a fixed-size buffer (deque) to maintain the most recent frequency readings, enabling real-time calculation of the rolling average and standard deviation.

• Dynamic Threshold Calculation: Sets the threshold at the rolling average plus three standard deviations (μ + 3σ), allowing the system to adapt to normal operational fluctuations without manual parameter tuning.

• Minimum Threshold Establishment: Introduces a baseline threshold set to 20% above the initial frequency reading to ensure stability during initialization and prevent premature anomaly detection.

• Enhanced Logging: Adds detailed debug logs to track frequency statistics and threshold values, facilitating easier monitoring and troubleshooting.

Benefits:

• Improved Accuracy: The self-adjusting threshold reduces false positives by accounting for natural variations in frequency readings.

• Robustness to Noise: The sliding window approach effectively filters out transient spikes, enhancing the reliability of anomaly detection.

Notes:

• The size of the sliding window (deque with maxlen=50) can be adjusted based on system requirements and data rates.

• The initial minimum threshold is set to 20% above the first observed frequency; this percentage can be modified if necessary to better suit specific operational conditions.

This enhancement aims to provide a more resilient and maintenance-free approach to monitoring coil frequencies, improving overall system reliability.

Checklist

The following relevant macros have been tested:

• [ x ] CARTOGRAPHER_CALIBRATE
• [ x ] PROBE
• [ x ] PROBE_ACCURACY
• [ x ] CARTOGRAPHER_THRESHOLD_SCAN
• [ x ] CARTOGRAPHER_TOUCH CALIBRATE=1
• [ x ] CARTOGRAPHER_TOUCH
• [ x ] CARTOGRAPHER_TOUCH METHOD=manual
• [ x ] BED_MESH_CALIBRATE

[sbtoonz]

commit squashed and issues brought up resolved let me know if anything else spotted @krautech @Jomik

[curather]

I would move the initialization of the variables to the init function

self.freq_window = deque(maxlen=self.SLIDING_WINDOW_SIZE)
self.min_threshold = None