Spectrogram compression for data transmission

A method for data compression comprising the steps of:

• deploying a remote sensor module having a sensor, an analog to digital convertor, a discrete Fourier transformer, a processor, and a transmitter;
• receiving analog data at the analog to digital convertor from the sensor in the remote sensor module;
• converting received analog data into digital time series data for a time segment utilizing the analog to digital convertor;
• transforming said digital time series data in the discrete Fourier transformer into a spectrogram covering the time segment;
• filtering noise from said spectrogram to produce a filtered spectrogram in the processor;
• converting said filtered spectrogram into a binary spectrogram representation in the processor;
• performing a Hough transform on the binary spectrogram representation to produce Hough peaks in the processor;
• selecting a predetermined number of Hough peaks in response to preselected Hough peak criteria in the processor;
• creating lines in time frequency space from said selected predetermined number of Hough peaks and said filtered spectrogram in the processor;
• combining multiple created lines into fewer combined lines when the created lines meet predetermined line combination criteria in the processor;
• determining a number of lines for transmission in accordance with a predetermined transmission bandwidth utilizing the processor;
• limiting the number of the combined lines for transmission to the combined lines meeting a transmission bandwidth criteria by utilizing the processor;
• composing a binary message by optimizing the time and frequency values for the limited number of combined lines by operation of the processor;
• transmitting the composed binary message from the transmitter in the remote sensor module;
• providing a receiving module having a receiver, a receive processor, and a display;
• receiving the composed binary message at the receiver in the receiving module;
• creating a reconstructed spectrogram from the composed binary message utilizing the receive processor;
• extracting parameters from the reconstructed spectrogram utilizing the receive processor;
• and
• displaying extracted parameters related to the reconstructed spectrogram at the display.