Signal Generator Distributes Data Bits Over Variable Time Intervals
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Solution Overview
Problem
Existing signal transmission protocols struggle to efficiently transmit additional information alongside speed measurement data in applications where events occur at varying time intervals, such as wheel speed measurements, due to limited data capacity and the need to maintain communication effectiveness.
Innovation Solution
A signal generator that distributes additional data bits over multiple time intervals based on the varying lengths of these intervals, using pulse width modulation or Manchester coding, allowing for adaptive data allocation and high data rate transmission.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If additional data is transmitted alongside event information in constant time intervals, then communication effectiveness is maintained, but data capacity is limited and cannot accommodate high or arbitrary amounts of additional data
Solution Approach 1:
The additional data is segmented and distributed across multiple time intervals between events. Instead of transmitting all additional data in a single interval, the system divides the data stream into portions that can be embedded in different time intervals, thereby increasing the total amount of transmittable data while adapting to variable interval lengths
Solution Approach 2:
The patent transitions from a single-dimension constant time interval approach to a multi-dimensional variable time interval approach. By utilizing the time dimension more effectively and allowing intervals to vary, the system can accommodate larger amounts of additional data while maintaining communication effectiveness
2Quantity of substance
If additional data is distributed over multiple time intervals, then high or arbitrary amounts of additional data can be transmitted, but data capacity utilization must be adapted to varying interval lengths
Solution Approach 1:
The system dynamically adapts the amount of additional data allocated to each time interval based on the actual interval length. Longer intervals receive more additional data bits, while shorter intervals receive fewer bits, optimizing data capacity utilization across variable time periods without requiring complex fixed allocation schemes
3Measurement precision
If pulses are temporarily separated according to differing time intervals, then event timing information is preserved, but data capacity per interval varies requiring adaptive allocation
Solution Approach 1:
The system changes the parameter of data allocation based on the time interval length. By adjusting the number of additional data bits transmitted in each interval according to its length, the system maintains precise event timing information while optimizing the overall data rate to achieve high productivity
Data Source
AI summary
A signal generator includes a signal provider and a signal processing unit. The signal provider is configured to provide a sensor signal indicating a repeatedly detected event, occurring within differing time intervals. The signal processing unit is configured to generate a transmit signal based on the sensor signal. The transmit signal includes event information representing the temporal occurrence of the event and additional information representing additional data. The event information includes pulses or signal edges associated to detected events, wherein the pulses or signal edges are temporarily separated within the transmit signal according to the differing time intervals of detected events so that each time interval of the differing time intervals includes one pulse or one signal edge associated with a detected event. Further, the additional data includes at least one frame including a predefined number of additional data bits. The information of the additional data bits of the at least one frame is distributed over at least two time intervals of the differing time intervals.