Dynamic Clock Frequency Control for Detachable Analysis Device Temperature
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Solution Overview
Problem
Surveillance cameras with detachable analysis devices face challenges in maintaining temperature within safe limits due to high power consumption and increased processing demands, potentially leading to device damage when temperature thresholds are exceeded, especially in environments not designed for such devices.
Innovation Solution
An image capturing apparatus and detachable device system that includes an obtaining unit for temperature information and a control unit to dynamically adjust the execution frequency of analysis processing based on the temperature, ensuring the system operates within safe temperature ranges by reducing or increasing processing frequency as needed.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the detachable device uses a high-performance arithmetic apparatus for sophisticated analysis processing, then the processing capacity is improved, but the power consumption increases leading to excessive temperature
Solution Approach 1:
The patent implements dynamic adjustment of the driving clock frequency of the arithmetic apparatus based on real-time temperature monitoring. When temperature exceeds a predetermined threshold, the system lowers the clock frequency to reduce power consumption and heat generation, while maintaining high processing capacity when temperature is within acceptable ranges. This dynamic adaptation resolves the contradiction between maintaining high productivity and controlling temperature.
2Device complexity
If the surveillance camera is not designed assuming that a detachable device will be mounted, then the device complexity is reduced, but temperature monitoring capability is lost
Solution Approach 1:
The detachable device performs self-measurement of its internal temperature using a temperature sensor integrated within it. This eliminates the need for the surveillance camera to provide temperature monitoring functionality, as the detachable device independently monitors its own temperature and communicates this information to the camera for coordinated control. This approach maintains simplicity in camera design while ensuring reliable temperature detection.
3Temperature
If the driving clock frequency is reduced to maintain temperature, then the temperature is controlled, but the processing speed decreases
Solution Approach 1:
The system periodically monitors temperature and dynamically adjusts the clock frequency in response to temperature conditions. Rather than maintaining a constantly reduced frequency, the system operates at high speed when temperature is acceptable and only reduces frequency when temperature thresholds are exceeded. This periodic adjustment allows the system to maintain high processing speed for most of the time while ensuring temperature control when necessary.
Data Source
AI summary
From a device mounted detachably to the image capturing apparatus, temperature information indicating a temperature in the device is obtained, and, based on the temperature information, an execution frequency of analysis processing executed by the device is controlled.