Bicycle Wireless Control Signal Acknowledgment
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Solution Overview
Problem
Existing bicycle wireless control systems face inefficiencies in communication and power management, leading to unnecessary energy consumption and potential miscommunication between electric components, which can result in inefficient operation and increased battery drain.
Innovation Solution
A bicycle wireless control system that includes a first electric component with a wireless communication unit transmitting control signals and an acknowledgement signal, and a second electric component with a controller programmed to periodically listen and suspend communication, reducing energy consumption by stopping signal transmission upon receipt of acknowledgement and implementing a predetermined stop period.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the first wireless communication unit continuously transmits control signals to the second wireless communication unit, then reliable communication is ensured, but energy consumption increases
Solution Approach 1:
The second wireless communication unit periodically switches between listening and non-listening periods. During non-listening periods, it suspends signal reception to conserve energy, while still maintaining communication capability during listening periods. This periodic operation reduces overall energy consumption while ensuring reliable communication when needed.
Solution Approach 2:
The system implements an acknowledgment signal mechanism where the second wireless communication unit sends an acknowledgment signal upon receiving a control signal. The first wireless communication unit stops transmitting after receiving this acknowledgment or after a predetermined stop period expires. This feedback mechanism ensures reliable communication by confirming signal delivery while preventing unnecessary continuous transmission that would waste energy.
2Use of energy by moving object
If the first wireless communication unit stops transmitting control signals after a predetermined stop period, then energy consumption is reduced, but communication reliability may deteriorate
Solution Approach 1:
The second wireless communication unit provides feedback through acknowledgment signals to confirm successful reception of control signals. This feedback mechanism allows the first wireless communication unit to stop transmission reliably after receiving acknowledgment, ensuring communication reliability is maintained while enabling energy conservation through the predetermined stop period.
Solution Approach 2:
The system establishes a predetermined stop period in advance that is equal to or longer than the non-listening period. This preliminary设定 ensures that the first wireless communication unit has sufficient time to transmit necessary signals before the second unit enters its energy-saving non-listening mode, thereby maintaining communication reliability while enabling energy conservation.
3Use of energy by stationary object
If the second wireless communication unit periodically suspends operation for non-listening periods, then power usage is optimized, but signal reception capability is reduced
Solution Approach 1:
The second wireless communication unit operates in periodic cycles, alternating between listening periods where it actively receives signals and non-listening periods where it suspends operation to conserve power. This periodic operation optimizes power usage by minimizing active reception time while still maintaining the ability to receive critical control signals during listening periods.
Solution Approach 2:
The predetermined non-listening period is set to be equal to or shorter than the predetermined stop period of the first wireless communication unit. This preliminary timing arrangement ensures that all necessary control signals are transmitted during the first unit's stop period, which encompasses the second unit's non-listening period, thereby maintaining signal reception capability despite the reduced active reception time.
Data Source
AI summary
A bicycle wireless control system is basically provided with a first bicycle electric component and a second bicycle electric component. The first bicycle electric component includes at least one operating member and a first wireless communication unit that wirelessly transmits a control signal in response to an operation of the at least one operating member. The second bicycle electric component includes a second wireless communication unit that is configured to wirelessly receive the control signal from the first wireless communication unit and to wirelessly transmit an acknowledgement signal to the first wireless communication unit upon receiving the control signal from the first wireless communication unit.