Human-Powered Vehicle Component Communication Control
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Solution Overview
Problem
Existing human-powered vehicle components lack efficient control systems to manage power consumption across different communication states, leading to increased energy usage and reduced usability.
Innovation Solution
A component for human-powered vehicles comprising a communicator and an electronic controller that switches between three communication control states based on received signals, optimizing power consumption by adjusting reception cycles and sensitivity periods, and automatically changing states without user intervention.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the communicator operates in a state with higher power consumption to ensure continuous communication, then communication reliability is improved, but power consumption increases
Solution Approach 1:
The communicator dynamically switches between three distinct operation modes (first, second, and third communication control states) with varying power consumption levels. The system transitions from static to dynamic operation, allowing the communicator to adapt its power consumption profile based on real-time communication needs and received signals, thereby resolving the contradiction between maintaining communication reliability and reducing power consumption.
Solution Approach 2:
The system changes operational parameters by switching between different communication control states, each with distinct power consumption characteristics and reception cycle durations. By varying these parameters based on received signals, the system optimizes the balance between communication reliability and power consumption without requiring a fixed operational mode.
2Speed
If the reception cycle is shortened to improve communication responsiveness, then communication speed is improved, but power consumption increases
Solution Approach 1:
The system dynamically adjusts the reception cycle duration based on the current communication control state and received signals. Instead of using a fixed reception cycle, the system transitions between different cycle lengths (first reception cycle with longer interval and second reception cycle with shorter interval), allowing optimization of both communication speed and power consumption according to real-time needs.
Solution Approach 2:
The communicator employs periodic reception cycles with varying periods. The system uses a first reception cycle with a longer period for lower power consumption and a second reception cycle with a shorter period for higher responsiveness. By implementing periodic action with variable periods, the system resolves the contradiction between communication speed and power consumption.
3Reliability
If the communicator continuously monitors signals to ensure no communication is lost, then communication reliability is improved, but power consumption increases
Solution Approach 1:
The system dynamically adjusts monitoring intensity based on received signals and communication control states. The communicator transitions between different monitoring levels by switching between first, second, and third communication control states, each with different reception cycle characteristics. This dynamic adjustment allows the system to maintain communication reliability while reducing power consumption during periods when continuous monitoring is not critical.
Solution Approach 2:
The system uses feedback from received signals to determine the appropriate communication control state and reception cycle. By continuously monitoring the signal environment and adjusting operation accordingly, the system ensures communication reliability is maintained only when necessary, thereby reducing overall power consumption while preserving reliability.
Data Source
AI summary
A human-powered vehicle component includes a communicator and an electronic controller. The communicator is configured to receive a first signal transmitted from at least one transmitter that is separate from the component. The electronic controller is configured to control the communicator in accordance with a communicator control state. The communicator control state includes a first communicator control state, a second communicator control state in which power consumption of the communicator is greater than power consumption of the communicator in the first communicator control state, and a third communicator control state in which power consumption of the communicator is greater than the power consumption of the communicator in the second communicator control state. In a case where the communicator control state is the second communicator control state, the electronic controller is configured to switch the communicator control state to the third communicator control state in accordance with the first signal.