Environmental Sensor with Prediction Circuit for Rapid Humidity

Solution Overview

Problem

MEMS sensors, such as humidity sensors, face limitations in response speed and precision, which restrict their application in environments with rapid humidity changes, leading to delayed measurements and reduced user experience.

Innovation Solution

An environmental sensor system that includes a sensing element, integrated circuit, and prediction mode, where the integrated circuit continuously obtains real-time data and uses a variational characteristic function to predict and correct environmental parameters, allowing for quick and accurate output even during rapid changes.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Measurement precision

If a humidity-sensitive material with high measurement precision is used, then measurement precision is improved, but response speed deteriorates

Engineering Contradiction:

Improvemeasurement precisionVSAvoidresponse speed

Core Design Contradiction:

Measurement precisionVSSpeed

Solution Approach 1:

The patent applies preliminary action by pre-calculating and storing variational characteristic values and their corresponding environmental parameters in advance. When a measurement is needed, the system directly retrieves and compares these pre-stored values with current sensor readings, eliminating the need to wait for the slow physical response of high-precision materials. This allows the system to output results immediately based on pre-computed data, effectively decoupling measurement precision from response speed.

Inventive Principle:

Principle #10Preliminary action

Solution Approach 2:

The patent implements dynamics by introducing a dual-mode measurement system that can dynamically switch between real-time measurement mode and prediction mode. In prediction mode, the system uses stored variational characteristic functions to dynamically generate predicted environmental parameters based on current sensor readings, allowing the system to adapt its response characteristics according to the required speed and precision levels.

Inventive Principle:

Principle #15Dynamics

2Measurement precision

If the response time is extended to achieve sufficient measurement precision, then measurement precision is improved, but loss of time increases

Engineering Contradiction:

Improvemeasurement precisionVSAvoidresponse time

Core Design Contradiction:

Measurement precisionVSLoss of time

Solution Approach 1:

The patent applies preliminary action by pre-calculating and storing variational characteristic values and their corresponding environmental parameters in advance. When a measurement is needed, the system directly retrieves and compares these pre-stored values with current sensor readings, eliminating the need to wait for the slow physical response of high-precision materials. This allows the system to output results immediately based on pre-computed data, effectively decoupling measurement precision from response speed.

Inventive Principle:

Principle #10Preliminary action

Solution Approach 2:

The patent applies copying by creating a virtual model of the sensor's response characteristics through variational characteristic functions stored in memory. Instead of waiting for the physical sensor material to complete its slow response, the system copies the expected response behavior through pre-stored data and mathematical functions, allowing immediate prediction of environmental parameters without the time penalty of physical material response.

Inventive Principle:

Principle #26Copying

3Speed

If real-time measurement is performed during rapid environmental changes, then response speed is improved, but measurement precision deteriorates

Engineering Contradiction:

Improveresponse speedVSAvoidmeasurement precision

Core Design Contradiction:

SpeedVSMeasurement precision

Solution Approach 1:

The patent applies feedback by continuously comparing real-time sensor readings with predicted values from the variational characteristic functions. The system uses this feedback to correct and refine measurements, ensuring that even when operating in fast-response mode with incomplete physical sensor response, the final output maintains high precision through iterative comparison and adjustment against the stored characteristic data.

Inventive Principle:

Principle #23Feedback

Solution Approach 2:

The patent implements dynamics by introducing a dual-mode measurement system that can dynamically switch between real-time measurement mode and prediction mode. In prediction mode, the system uses stored variational characteristic functions to dynamically generate predicted environmental parameters based on current sensor readings, allowing the system to adapt its response characteristics according to the required speed and precision levels.

Inventive Principle:

Principle #15Dynamics

Data Source

PatentUS10317355B2Environmental sensor and method for measuring and predicting environmental parameters

Publication Date: 2019.06.11 WEIFANG GOERTEK MICROELECTRONICS CO LTD

AI summary

An environmental sensor and an environmental parameter measurement and prediction method, the environmental sensor comprising: a sensing element configured to sense an instant sensing characteristic value, so as to apply sending; an integrated circuit used for continuously obtaining the instant sensing characteristic value and an instant clock signal and obtaining via calculation an instant environmental parameter, so as to apply storing and outputting. A physical and chemical properties function corresponding to the sensing element is provided for the integrated circuit. Under a prediction model, the integrated circuit utilizes the physical and chemical properties function to conduct prediction calculation to obtain an actual environmental parameter, so as to apply storing and sending according to a current instant environmental parameter and an instant clock signal and at least one set of pre-stored instant environmental parameter and instant clock signal.