Storage Device Thermal Management via Dynamic Mode Switching
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Solution Overview
Problem
Storage devices face challenges in optimizing operating speed to manage temperature variations, leading to potential overheating and reduced performance, as existing technologies lack efficient methods to dynamically adjust speed and detection periods based on temperature changes.
Innovation Solution
Incorporating a temperature sensor and a memory controller that operates in multiple modes (normal, fine control, and low heat) to adjust detection periods and operating speeds based on temperature readings, allowing for dynamic adjustments to prevent overheating and maintain optimal performance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the storage device operates at high speed continuously, then productivity is improved, but temperature increases leading to overheating and reduced reliability
Solution Approach 1:
The patent implements dynamic operation mode switching based on temperature conditions. The memory controller transitions between first mode (normal operation), second mode (fine control with reduced speed), and third mode (low heat with minimal speed) according to temperature sensor feedback, allowing the system to adapt operating speed dynamically to prevent overheating while maintaining productivity when conditions permit
Solution Approach 2:
The patent employs a feedback mechanism where the temperature sensor continuously monitors device temperature and provides information to the memory controller. Based on this feedback, the controller adjusts operation modes and speed accordingly, creating a closed-loop control system that balances productivity and temperature management
2Measurement precision
If temperature detection frequency is increased to monitor temperature variations, then measurement precision is improved, but use of energy increases due to more frequent sensor operations
Solution Approach 1:
The patent dynamically adjusts the temperature detection period based on operation mode. In the first mode, temperature is detected at a first period; in the second mode, at a second period; and in the third mode, at a third period. This dynamic adjustment allows precise temperature monitoring when needed while reducing energy consumption during stable or low-risk operation states
Solution Approach 2:
The patent changes the detection period parameter according to temperature conditions and operation modes. By adjusting this temporal parameter, the system optimizes the balance between measurement precision and energy usage, detecting temperature more frequently when risk of overheating is higher and less frequently when conditions are stable
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 effectively manages temperature variations by dynamically adjusting detection periods and operating speeds, reducing the risk of overheating and optimizing storage device performance across different temperature ranges.
Implementation Method 1
The temperature sensor may be configured to detect a temperature of the storage device. The temperature sensor may be configured to output temperature information.
Data Source
AI summary
A storage device is provided which includes a nonvolatile memory and a temperature sensor. The temperature sensor is configured to detect a temperature of the storage device. The temperature sensor is configured to output temperature information. The storage device includes a memory controller. The memory controller is configured to access the nonvolatile memory in response to a request of an external host device. The memory controller is configured to obtain the temperature information from the temperature sensor according to a first period in a first mode. The temperature sensor is configured to obtain the temperature information from the temperature sensor according to a second period in a second mode. The second period is shorter than the first period.