Measurement Device Voltage Comparison Power Control
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing sensors consume excessive power by continuously measuring the state of a measurement target, even when there is no state change, leading to increased power consumption.
Innovation Solution
A measurement device with a sensor unit and control unit that measures voltage changes using first and second voltage comparison units to determine if a state change has occurred, only activating the sensor when a predetermined voltage change threshold is exceeded, thereby reducing power consumption by stopping the sensor when no change is detected.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the temperature sensor continuously measures the temperature of the measurement target to determine state changes, then the state change detection capability is improved, but the power consumption increases
Solution Approach 1:
The patent applies preliminary action by first measuring the voltage corresponding to the state of the measurement target and comparing it to reference voltages before actually activating the full measurement system. This preliminary voltage measurement and comparison determines whether a state change has occurred, and only if it has does the system proceed to activate the sensor unit for full temperature measurement, thereby avoiding unnecessary power consumption when no state change exists.
Solution Approach 2:
The patent implements dynamics by making the measurement system adaptive rather than static. The control unit dynamically adjusts the operation state of the sensor unit based on real-time voltage comparisons. When the measured voltage is within the reference range indicating no state change, the sensor unit is deactivated. When the voltage exceeds the reference range indicating a state change, the sensor unit is activated. This dynamic adjustment optimizes power consumption while maintaining reliable state change detection.
2Speed
If the sensor unit operates continuously to measure state changes, then the measurement responsiveness is improved, but the power consumption increases
Solution Approach 1:
The patent applies periodic action through the control unit that periodically checks the voltage corresponding to the measurement target state against reference voltages. Instead of continuous operation, the system performs periodic voltage measurements and comparisons, and only activates the full sensor unit periodically when voltage changes indicate a state change has occurred. This maintains measurement responsiveness while significantly reducing average power consumption.
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
The solution significantly reduces power consumption by only measuring and reporting state changes when they exceed predetermined voltage limits, extending battery life and reducing operational costs in applications like cooking appliances.
Implementation Method 1
a measurement unit (100) capable of measuring a voltage corresponding to the state of the measurement target
Implementation Method 2
a first voltage comparison unit (101) configured to determine whether or not the measured voltage is changed beyond a lower limit value of a predetermined voltage change
Implementation Method 3
a second voltage comparison unit (102) configured to determine whether or not the voltage change is changed beyond an upper limit value of the voltage change
Data Source
AI summary
A measurement device includes a sensor unit capable of measuring a state of a measurement target, and a control unit configured to control the sensor unit. The sensor unit includes a measurement unit capable of measuring a voltage corresponding to the state of the measurement target, a first voltage comparison unit configured to determine whether or not the measured voltage is changed beyond a lower limit value of a predetermined voltage change, and a second voltage comparison unit configured to determine whether or not the voltage change is changed beyond an upper limit value of the voltage change. The control unit stops power supply to the sensor unit in a case in which it is determined in the first and second voltage comparison units that the measured voltage is not changed beyond the voltage change.