Vehicle Sensor Signal Processing Noise Discrimination

Solution Overview

Problem

Existing signal processing systems for vehicles are inefficient in detecting noise signals, leading to slow information updates and reduced accuracy due to the need for continuous input of preset reference values before re-detection can occur.

Innovation Solution

A signal processing system and method that includes a vehicle sensor unit, an arithmetic and control unit, and a display unit, where the arithmetic and control unit compares and analyzes sensing information to discriminate normal signals from noise, using a counter and storage unit to determine if new information matches previously input data within a preset error range, allowing for timely and accurate output.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If sensing information is continuously input by a preset number before re-detection can occur, then noise detection can be made, but information update becomes slow

Engineering Contradiction:

Improvenoise detection accuracyVSAvoidinformation update speed

Core Design Contradiction:

ReliabilityVSLoss of time

Solution Approach 1:

The system performs preliminary comparison of newly input sensing information with previously stored sensing information before final noise determination. This preliminary action allows the system to identify potential noise earlier, without requiring the full preset number of continuous inputs, thus reducing the time delay while maintaining detection reliability

Inventive Principle:

Principle #10Preliminary action

Solution Approach 2:

The system stores previously input sensing information and uses it as a reference for comparing new sensing information. This feedback mechanism enables the system to detect noise by comparing current readings with historical data, allowing faster detection without sacrificing accuracy

Inventive Principle:

Principle #23Feedback

2Reliability

If sensing information with specific value equal to or more than preset reference value is continuously input by preset number, then normal signal can be determined, but detection period is extended

Engineering Contradiction:

Improvesignal determination accuracyVSAvoiddetection period

Core Design Contradiction:

ReliabilityVSLoss of time

Solution Approach 1:

The system performs preliminary comparison of newly input sensing information with previously stored sensing information before final noise determination. This preliminary action allows the system to identify potential noise earlier, without requiring the full preset number of continuous inputs, thus reducing the time delay while maintaining detection reliability

Inventive Principle:

Principle #10Preliminary action

Solution Approach 2:

The system stores previously input sensing information and uses it as a reference for comparing new sensing information. This feedback mechanism enables the system to detect noise by comparing current readings with historical data, allowing faster detection without sacrificing accuracy

Inventive Principle:

Principle #23Feedback

3Reliability

If all sensing information is determined as error when different measurement value is input in the middle, then noise can be detected, but information update becomes slow

Engineering Contradiction:

Improveerror detection accuracyVSAvoidinformation processing efficiency

Core Design Contradiction:

ReliabilityVSProductivity

Solution Approach 1:

Instead of determining all sensing information as error when a different measurement value is detected, the system performs a partial comparison only with the previously stored sensing information. This partial action approach allows the system to identify potential errors without completely discarding all current inputs, thus maintaining error detection accuracy while improving processing efficiency

Inventive Principle:

Principle #16Partial or excessive action

Solution Approach 2:

The system stores previously input sensing information and uses it as a reference for comparing new sensing information. This feedback mechanism enables the system to detect noise by comparing current readings with historical data, allowing faster detection without sacrificing accuracy

Inventive Principle:

Principle #23Feedback

Data Source

PatentUS10773728B2Signal processing system and signal processing method for sensors of vehicle

Publication Date: 2020.09.15 COAVIS

AI summary

Provided are a signal processing system and a signal processing method for sensors of a vehicle. More particularly, the signal processing system includes: a vehicle sensor unit 100 including the plurality of sensors previously provided in the vehicle and transmitting sensing information acquired through the sensors; an arithmetic and control unit 200 receiving sensing information from the vehicle sensor unit 100, and comparing and analyzing the received sensing information to discriminate only normal sensing information from the sensing information and set and transmit the normal sensing information as output information; and a display unit 300 including a plurality of displays previously provided in the vehicle, transmitting the output information received from the arithmetic and control unit 200 to the matched display of the plurality of displays, and outputting the output information through the matched display of the plurality of displays.