Vehicle Sensor Signal Filtering for Multi-Controller Frequency Bands
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Solution Overview
Problem
The need to provide multiple sensors for different controllers due to differing available frequency bands, which can increase the number of mounted sensors.
Innovation Solution
A processor that processes sensor signals from a single sensor using multiple filters to extract different frequency bands, allowing simultaneous output to multiple controllers with differing frequency band requirements.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple sensors are provided for different controllers to meet their respective frequency band requirements, then each controller can use the appropriate frequency band, but the number of mounted sensors increases
Solution Approach 1:
The single sensor device is designed to serve multiple controllers with different frequency band requirements by incorporating multiple filtering paths. The sensor output is processed through different filters (first filter for first frequency band, second filter for second frequency band) within the same device, enabling one sensor to fulfill the role of multiple sensors for different controllers
Solution Approach 2:
The sensor device internally segments the sensor signal into different frequency bands using separate filtering paths. The acquisition section acquires the sensor signal, which is then divided into multiple processed signals through first and second processing sections with different filters, allowing each controller to receive the appropriate frequency band from a single sensor device
2Quantity of substance
If a single sensor is used for multiple controllers, then the number of mounted sensors is reduced, but the different frequency band requirements of multiple controllers cannot be met
Solution Approach 1:
The processor within the sensor device acts as an intermediary that receives the sensor signal and processes it into multiple frequency-banded output signals. The processor includes acquisition, processing, and output sections that mediate between the single sensor and multiple controllers, transforming the raw sensor signal into controller-specific frequency bands
Solution Approach 2:
The sensor device dynamically processes the sensor signal through different filtering paths based on the requirements of different controllers. The first and second processing sections apply different filters to the same input signal, dynamically generating output signals with different frequency characteristics to match different controller needs
Data Source
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AI summary
The present invention provides a processor, a sensor device, a control system, and a processing method capable of suppressing an increase in the number of mounted sensors. A processor 132 is a processor 132 that processes a sensor signal output from a sensor mounted to a vehicle, and includes: an acquisition section 132a that acquires the sensor signal output from the sensor; a first processing section 132b that generates first output signals through first filters F11, F12, F13, F14, F15, F16, each of which extracts a first frequency band from the sensor signal acquired by the acquisition section 132a; a second processing section 132c that generates second output signals through second filters F21, F22, F23, F24, F25, F26, each of which extracts a second frequency band, which differs from the first frequency band, from the sensor signal acquired by the acquisition section 132a; and an output section 132d that outputs the first output signal and the second output signal at once.