Vehicle Wireless Master-Slave Activation Control
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Solution Overview
Problem
In short-range wireless communication systems for vehicles, multiple devices are often kept activated unnecessarily, leading to wasteful power consumption as they wait for communication demands, even when not all devices are required.
Innovation Solution
A system comprising a master device and slave devices, where the master device detects the presence of a mobile terminal and activates only the necessary slave devices for communication, keeping others in a deactivated state until needed.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If multiple slave devices are kept activated to ensure communication readiness, then communication responsiveness is improved, but power consumption increases
Solution Approach 1:
The slave devices dynamically transition between deactivated and activated states based on communication needs. The master device controls the activation state of slave devices, switching them from deactivated to activated when communication is required, and back to deactivated when not needed, making the system adaptable to varying communication demands.
Solution Approach 2:
The system employs periodic activation rather than continuous operation. Slave devices are activated only during specific periods when communication with the mobile terminal is required, and deactivated during periods when communication is not needed, reducing overall power consumption while maintaining communication responsiveness.
2Reliability
If multiple slave devices are kept activated to handle communication demands, then service availability is improved, but unnecessary power consumption occurs
Solution Approach 1:
The master device autonomously manages the activation state of slave devices based on detected communication needs. When the master device detects a mobile terminal in its communication range, it automatically activates the necessary slave devices without external intervention, and deactivates them when communication is complete, eliminating unnecessary power consumption.
Solution Approach 2:
The system uses feedback from the master device's detection of mobile terminals to control slave device activation. The master device monitors the communication environment and provides feedback by activating or deactivating slave devices accordingly, ensuring service availability only when and where needed.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This approach significantly reduces unnecessary power consumption by ensuring only active devices communicate with the mobile terminal, optimizing energy use in the system.
Implementation Method 1
a master device and slave devices which are short-range wireless communication devices that communicate with a mobile terminal 3 located in a communication range to perform a wireless communication
Data Source
AI summary
A short-range wireless communication system mounted on a vehicle includes a master device and slave devices. Each of the master device and slave devices is a short-range wireless communication device that communicates with a mobile terminal located in a communication range to perform a wireless communication. The master device includes a mobile terminal detection unit detecting the mobile terminal located in a communication range of the master device and an activation control unit performing an activation control to activate the slave devices in response to a detection of the mobile terminal by the mobile terminal detection unit. Each slave device is maintained in a deactivated state until activation control is performed by the activation control unit of the master device. Each slave device is activated when the activation control is performed by the activation control unit of the master device.