Wireless Power Supply Control Device Startup Signal Timing
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Solution Overview
Problem
Existing battery monitoring devices face challenges in reliably controlling power supply through wireless signals, particularly when startup signals are not re-output within a predetermined timeout, and timing synchronization for wireless signal reception and transmission is difficult, especially with multiple devices.
Innovation Solution
A power supply control system that includes a battery, a power supply control device, and a controller for wireless communication, where the device receives a wireless startup signal to control power supply and exchanges wireless communication signals, allowing flexible timing adjustments based on command contents and device configurations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of energy
If the power supply circuit is started up and a timeout period is waited for to determine whether to stop operation, then power consumption is reduced, but the system cannot reliably continue operation when startup signals are missed due to timing conflicts with monitoring commands or multiple devices
Solution Approach 1:
The system performs preliminary actions by receiving and processing the startup signal before the timeout period begins, determining operation continuity in advance. The decode circuit decodes the wireless signal and determines whether to continue operation before the timeout expires, preventing the need to wait through the entire timeout period and thereby reducing power consumption while maintaining reliability.
Solution Approach 2:
The system implements feedback by continuously monitoring wireless signals during the timeout period and adjusting operation accordingly. The decode circuit monitors for additional wireless signals that may indicate operation continuation, and the power supply circuit responds by maintaining or stopping power supply based on this feedback, resolving the contradiction between early stopping for power savings and waiting for reliability.
2Device complexity
If wireless signal reception timing is fixed, then simple timing control is achieved, but the system cannot adapt to changing transmission timings based on command contents or multiple device configurations
Solution Approach 1:
The system applies dynamics by making the reception timing adjustable rather than fixed. The decode circuit can adapt its operation timing based on the decoded command contents and system configuration, allowing the timing to change dynamically according to operational needs while maintaining a relatively simple overall structure through standardized adjustment mechanisms.
Solution Approach 2:
The system changes parameters by adjusting the reception timing parameter based on command contents and device configurations. The decode circuit modifies its operational timing parameters dynamically, allowing the same hardware to adapt to different timing requirements without increasing structural complexity, thus resolving the contradiction between simplicity and flexibility.
3Reliability
If the decode circuit waits for the timeout period before determining operation status, then false startup prevention is achieved, but operation continuation is delayed when startup signals are missed
Solution Approach 1:
The decode circuit performs preliminary decoding of the wireless signal at the beginning of the timeout period to determine operation status in advance. By processing the startup signal immediately upon receipt and determining whether to continue operation before the timeout expires, the system prevents false startups while avoiding unnecessary delays in legitimate operation continuation.
Solution Approach 2:
The system performs partial action by checking for startup signals at multiple points during the timeout period rather than waiting for the complete timeout. The decode circuit monitors for wireless signals throughout the timeout period and can determine operation status from partial information, reducing the effective waiting time while maintaining reliability through multiple checking opportunities.
Data Source
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AI summary
To provide a system for controlling power supplies in a device including batteries 12, 13, and 14 by wireless signals with high reliability. The system includes the batteries 12, 13, 14, a power supply control device 1 supplied with power from the batteries 12, 13, and 14, and a controller 15 for making wireless communication with the power supply control device 1. The power supply control device 1 includes a startup unit 37 for receiving a wireless startup signal transmitted from the controller 15 and controlling power supplying from the batteries to the power supply control device, and a communication unit 10 for making wireless communication with the controller. While the startup unit 37 is receiving the wireless startup signal, wireless communication is made by the communication unit 10.