Terminal Sensor Control With Power-Adaptive Switching Thresholds

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Solution Overview

Problem

Conventional control systems for terminal devices are inefficient due to the need for manual determination of sensor thresholds, leading to high costs and inaccurate switching of operational statuses, especially when power levels are low, causing unstable electrical signals.

Innovation Solution

A control system that includes retrieval, computing, power, and control circuitry to determine a switching threshold based on electrical signals and the remaining power level of the terminal device, allowing for accurate switching between operational statuses without relying on predetermined thresholds.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Device complexity

If predetermined thresholds are used for sensor switching, then the control system is simple to implement, but the switching accuracy deteriorates when power levels are low

Engineering Contradiction:
Improvecontrol system complexityVSAvoidswitching accuracy
Core Design Contradiction:
Device complexityVSMeasurement precision

Solution Approach 1:

The patent applies dynamics by making the switching threshold variable rather than fixed. The control circuitry dynamically adjusts the switching threshold based on the detected power level of the terminal device. When power levels are low, the threshold is adjusted to account for signal instability, thereby maintaining switching accuracy across different power conditions without significantly increasing system complexity.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The patent changes the parameter of the switching threshold based on the power level parameter. Instead of using a single predetermined threshold, the system modifies the threshold value according to the detected power level. This parameter change allows the system to compensate for power-related signal instability and maintain accurate switching decisions under varying power conditions.

Inventive Principle:
Principle #35Parameter changes

2Measurement precision

If manual determination of sensor thresholds is performed, then the switching accuracy can be optimized, but the cost and time consumption increase substantially

Engineering Contradiction:
Improveswitching accuracyVSAvoidthreshold determination time
Core Design Contradiction:
Measurement precisionVSLoss of time

Solution Approach 1:

The patent applies self-service by enabling the control circuitry to automatically determine and adjust switching thresholds based on detected power levels, without requiring manual intervention. The system autonomously adapts to different power conditions and adjusts its behavior accordingly, eliminating the need for time-consuming manual threshold determination while maintaining switching accuracy.

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The patent implements feedback by using the detected power level as input to adjust the switching threshold. The control circuitry continuously monitors the power level and uses this feedback information to dynamically modify the threshold, creating a closed-loop system that automatically optimizes switching accuracy without manual intervention.

Inventive Principle:
Principle #23Feedback

3Speed

If electrical signals are used for operational status switching, then the control response is fast, but the signals become unstable when power supply is inadequate

Engineering Contradiction:
Improvecontrol response speedVSAvoidsignal stability
Core Design Contradiction:
SpeedVSReliability

Solution Approach 1:

The patent applies dynamics by making the switching threshold adaptive to power conditions. Instead of using a fixed threshold that fails under low power, the system dynamically adjusts the threshold based on detected power levels, maintaining reliable signal interpretation and operational status switching even when power supply is inadequate and signals are inherently unstable.

Inventive Principle:
Principle #15Dynamics

Data Source

PatentUS11614787B2Control system for terminal device and method thereof
Publication Date: 2023.03.28 SHENZHEN CHENBEI TECH CO LTD
  • US11614787B2 patent drawing
  • US11614787B2 patent drawing
  • US11614787B2 patent drawing

AI summary

A control system for a terminal device includes a retrieval circuitry, a computing circuitry, a power circuitry, and a control circuitry. The retrieval circuitry is arranged to receive a plurality of electrical signals transmitted from a sensor of the terminal device. The electrical signals correspond to a first operational status thereof. The computing is arranged to determine a first variable value based on the electrical signals and a reference value. The power circuitry is arranged to retrieve a remaining power level of the terminal device, and determine a second variable value based on the remaining power level. The control circuitry is arranged to drive the terminal device to switch from the first operational status to the second operational status when the first variable value is greater than the second variable value.