Bicycle Wireless Control Signal Timing
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Solution Overview
Problem
Existing bicycle wireless control systems face inefficiencies in signal transmission and power consumption due to the lack of optimized communication protocols between electric components, leading to suboptimal performance and increased energy usage.
Innovation Solution
A bicycle wireless control system that includes a first electric component with a wireless transmitter and a second electric component with a wireless receiver, where the receiver operates in predetermined listening periods with non-listening intervals, optimizing signal reception and reducing power consumption by adhering to specific timing relationships between transmission and listening periods.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the wireless receiver operates continuously to receive control signals, then the reliability of signal reception is improved, but the power consumption increases
Solution Approach 1:
The wireless receiver operates in periodic listening periods rather than continuously. The controller activates the receiver for specific listening periods at predetermined intervals, allowing it to enter low-power states between these periods. This periodic operation maintains signal reception reliability while significantly reducing overall power consumption of the battery-powered component.
2Reliability
If the wireless transmitter transmits control signals at frequent intervals, then the communication reliability is improved, but the power consumption of the transmitter increases
Solution Approach 1:
The wireless transmitter transmits control signals at predetermined non-transmission intervals rather than continuously. The transmitter activates for specific transmission periods separated by idle intervals, reducing its overall power consumption while maintaining effective communication by transmitting at sufficient frequency during active periods.
3Reliability
If the listening periods are extended to ensure complete signal reception, then the signal reception completeness is improved, but the power consumption of the receiver increases
Solution Approach 1:
The controller activates the wireless receiver in advance for predetermined listening periods before the expected arrival of control signals. By proactively enabling the receiver at optimized intervals, the system ensures complete signal reception without requiring the receiver to remain continuously active, thus balancing reception completeness with power consumption reduction.
Data Source
AI summary
A bicycle wireless control system is basically provided with a first electric component and a second electric component. The first electric component includes a wireless transmitter that wirelessly transmits a plurality of control signals in response to a single operation of at least one operating member. Each of the control signals is transmitted for a predetermined transmission period at a predetermined non-transmission interval between adjacent ones of the control signals. The second electric component includes a wireless receiver and a controller. The wireless receiver wirelessly receives the control signal. The controller periodically operates the wireless receiver for at least two predetermined listening periods that each includes a set of predetermined listening periods with a non-listening interval therebetween. A predetermined non-listening interval is further provided between the set of the predetermined listening periods, which is larger than each of the intermediate predetermined non-listening intervals.