Broadcast Receiver Human Sensor Power Control
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Solution Overview
Problem
Broadcast receiving apparatuses take a long time to start up and consume significant power during the waiting period, especially when receiving digital broadcasting signals, which is irritating for users and inefficient in terms of energy usage.
Innovation Solution
Incorporating a proximity detector, such as a camera, to detect human presence and adjust power supply to the video processing portion only when needed, allowing the system to shift into a lower power state during waiting periods, thereby reducing startup time and power consumption.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the CPU and digital LSI are mounted to enable digital broadcasting reception, then the receiving capability is improved, but the startup time increases to 10 seconds or more
Solution Approach 1:
The system performs preliminary actions by pre-loading necessary data and initializing the CPU and digital LSI before the user actually needs to watch digital broadcasting. When the user selects digital broadcasting, the system has already prepared the necessary components, eliminating the 10-second startup delay. This is achieved by monitoring user preferences and pre-initializing the appropriate receiving components in advance.
2Speed
If the system remains in waiting condition with CPU and digital LSI powered on, then the startup speed is improved, but the electric power consumption increases
Solution Approach 1:
The system dynamically adjusts the power state of the CPU and digital LSI based on real-time user behavior and broadcasting selection. Instead of maintaining a fixed power state, the system transitions between powered-on and powered-off states optimally, balancing startup speed and power consumption by predicting user needs and pre-initializing components only when necessary.
Solution Approach 2:
The system changes the operational parameters of the CPU and digital LSI by adjusting their power states dynamically. Based on user preferences and broadcasting type selections, the system modifies parameters such as power consumption levels and initialization timing to achieve optimal performance without unnecessary energy waste during waiting periods.
3Loss of time
If the analog broadcast is used, then the startup time is short, but the receiving capability becomes obsolete after analog broadcast stoppage
Solution Approach 1:
The system achieves universality by integrating both analog and digital broadcasting reception capabilities into a single receiver. The CPU and digital LSI are designed to handle multiple broadcasting types, allowing the system to maintain short startup times while remaining adaptable to future digital-only broadcasting environments. The system can switch between analog and digital modes based on availability and user preference.
Data Source
AI summary
For providing a broadcast receiving apparatus and a method for staring thereof, suppressing electric power consumption therein, under waiting condition, irrespective of mounting a constituent part requiring a long time for starting up, according to the present invention, within a broadcast receiving apparatus, detection is made, always, upon an approach of a human being, by means of a human sensor 40 and a sub-CPU 60, under the condition that a power plug 75 is inserted into a commercial electric power source, so as to control supply of electric power form a main electric power source unit to each of portions of that apparatus. Thus, prior to startup of that apparatus through a main switch 22 and a remote controller 30, a constituent portion (i.e., a video processing portion 200), being made up with a CPU and/or a digital LSI, installing OS therein and talking time for startup thereof, is started up, in advance, so as to bring it into awaiting condition; thereby shortening or reducing the waiting time after the startup of the apparatus with suppressing the electric power consumption under the waiting condition thereof.