Memristive Sensor System for Dynamic Power Management
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing sensor systems face inefficiencies in power consumption and activation timing, as they maintain active sensors continuously, leading to unnecessary energy expenditure and prolonged activation times.
Innovation Solution
A system comprising a first sensing unit, a memristive unit, and additional sensing units, where the memristive unit switches between resistance states based on an electrical signal from the first sensing unit, activating additional sensing units only when in a lower resistance state and deactivating them when in a higher resistance state, with a processing unit managing this switching and power supply.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If sensors are kept in constant active state for continuous measurement, then measurement precision is improved, but power consumption increases
Solution Approach 1:
The patent implements dynamic sensor activation by using a memristive unit to control the operational state of sensing units. Sensors transition between active and standby states based on detected parameter changes, allowing the system to adapt its measurement capability to actual environmental conditions while minimizing unnecessary power consumption during stable states.
Solution Approach 2:
The system employs periodic measurement cycles where sensing units are activated only when parameter changes are detected by the memristive unit. This periodic activation pattern replaces continuous operation, maintaining measurement precision when needed while significantly reducing overall power consumption during stable parameter conditions.
2Use of energy by moving object
If sensors are activated only when needed, then power consumption is reduced, but response time increases
Solution Approach 1:
The memristive unit performs preliminary detection of parameter changes and prepares the system for sensor activation in advance. By detecting changes before full sensor activation is required, the system minimizes the effective response time while keeping sensors in low-power standby mode, thus resolving the contradiction between power savings and response speed.
3Measurement precision
If multiple sensing units are activated simultaneously, then measurement coverage is improved, but power consumption increases
Solution Approach 1:
The patent applies local quality by selectively activating only the specific sensing units required for the current measurement task based on local conditions detected by the memristive unit. Instead of uniformly activating all sensors, the system activates only those units whose measurement capability is currently needed, optimizing both measurement precision and energy efficiency.
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
This approach significantly reduces power consumption by keeping most sensors idle until parameter changes are detected, allowing for precise and efficient parameter measurement with controlled activation intervals.
Implementation Method 1
a memristive unit electrically coupled to the first sensing unit, wherein the memristive unit is adapted to switch between a first and a second states based on the electrical signal produced by the first sensing unit, wherein the resistance value of the memristive unit in the first state is lower than the resistance value of the memristive unit in the second state
Data Source
AI summary
In accordance with an example embodiment of the present invention, a system is disclosed. The system comprises a first sensing unit (11) adapted to detect change in a parameter and produce an electrical signal (12) based on the detection; and a memristive unit (13) electrically coupled to the first sensing unit (11), wherein the memristive unit (13) is adapted to switch between a first and a second states based on the electrical signal (12) produced by the first sensing unit (11), wherein the resistance value of the memristive unit (13) in the first state is lower than the resistance value of the memristive unit (13) in the second state. The system further comprises at least one additional sensing unit (14) electrically coupled to the memristive unit (13), wherein the at least one additional sensing unit (14) is adapted to stand by when the memristive unit (13) is in the second state, and perform measurement of a parameter when the memristive unit (13) is in the first state. A method (21-26) and apparatus for sensing parameters are also disclosed.