Fixed-Interval Speed Sensor Output for High-Resolution Sensing
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional speed sensors provide output signals that depend on target speed, leading to loss of resolution and maximum sensing speed limitations, which can saturate communication channels and require increased hardware for data interpretation.
Innovation Solution
A time-derived sensor output protocol that generates data about target parameters at a fixed time interval independent of target speed, using magnetic field sensing elements, detection circuitry, and an output circuit to convey information at a predetermined interval.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If conventional speed sensors provide output signals that depend on target speed, then the sensor can communicate speed information, but the communication channel becomes saturated at higher speeds and resolution is lost
Solution Approach 1:
The patent implements a fixed periodic output interval (e.g., 1ms) independent of target speed, where the sensor continuously outputs data at regular time intervals. This periodic action ensures that the communication channel receives data at a constant rate regardless of how fast the target is moving, preventing channel saturation while maintaining consistent resolution across all speed ranges.
Solution Approach 2:
The patent changes the output parameter from speed-dependent (conventional) to time-dependent (fixed interval). By making the output interval a fixed time parameter rather than a speed-proportional parameter, the system achieves consistent data throughput and resolution across the entire operating speed range, eliminating the resolution loss that occurs at high speeds with conventional protocols.
2Productivity
If conventional sensors output data at a rate dependent on target speed, then speed information is conveyed, but maximum sensing speed is limited and hardware requirements increase
Solution Approach 1:
By implementing fixed periodic output intervals, the sensor maintains constant data throughput regardless of target speed. This ensures maximum productivity is achieved across the entire speed range without requiring additional hardware processing capacity, as the communication channel operates at a predictable, manageable rate.
Solution Approach 2:
The patent uses simplified data encoding where each output interval contains standardized data fields (timestamp, position, speed, acceleration). This standardized copying format reduces the complexity of data interpretation hardware at the control unit, as the fixed structure requires less complex parsing and processing compared to variable-speed protocols.
3Adaptability or versatility
If conventional speed sensors use variable pulse width or AK protocols, then direction and additional parameters can be communicated, but the output rate varies with target speed causing resolution loss
Solution Approach 1:
The patent implements a universal fixed-interval output protocol that can convey multiple parameters (position, speed, acceleration, direction) in each time interval. This multi-functional approach maintains adaptability for communicating various target parameters while the fixed time interval ensures consistent resolution regardless of target speed, resolving the trade-off between versatility and precision.
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 allows for increased sensing speeds without saturating communication channels, enhances data throughput, and reduces hardware requirements for interpreting sensor output data.
Implementation Method 1
one or more of magnetic field sensing elements operable to generate one or more magnetic field signals indicative of a magnetic field associated with the target
Data Source
AI summary
According to one aspect of the disclosure, a sensor for detecting speed of a target includes: one or more of magnetic field sensing elements operable to generate one or more magnetic field signals indicative of a magnetic field associated with the target having a speed; detection circuitry configured to detect one or more parameters of the target using the magnetic field signals or representations thereof; and an output circuit configured to generate a sensor output signal conveying information about the one or more parameters of the target at a fixed time interval independent of the target speed.