Dynamic Transmission Power Adjustment for Wireless Communication Reliability
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Solution Overview
Problem
Communication quality in communication systems deteriorates due to changes in the state of the housing, such as vibration or ignition, affecting the distribution of the electromagnetic field, leading to unreliable wireless communication between management and terminal devices.
Innovation Solution
A power determination process is implemented by the management device to adjust the transmission power of wireless communication signals based on state changes, using test signals and learning information to determine optimal power values, ensuring reliable communication quality.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If transmission power is increased to maintain communication quality, then communication reliability is improved, but energy consumption increases
Solution Approach 1:
The patent implements dynamic transmission power adjustment where the management device changes transmission power based on detected housing states (vibration, ignition). The system transitions from static to dynamic power control, selecting from multiple predetermined power values (first through fifth power values) depending on the current housing state, thereby optimizing the balance between communication reliability and energy consumption.
Solution Approach 2:
The patent changes the transmission power parameter according to housing state conditions. Different transmission power values are assigned to different housing states (e.g., normal state, vibration state, ignition state), allowing the system to adapt communication parameters to environmental conditions and maintain reliable communication while minimizing energy usage.
2Reliability
If transmission power is dynamically adjusted based on housing state, then communication quality is maintained, but device complexity increases
Solution Approach 1:
The management device autonomously detects housing states (vibration, ignition) and automatically selects appropriate transmission power values without external intervention. The system performs self-diagnosis and self-adjustment of communication parameters based on internal sensors and pre-programmed control logic, reducing the need for manual configuration or complex external control systems.
Solution Approach 2:
The patent pre-establishes multiple transmission power values (first through fifth power values) and their corresponding housing states before operation. The control device has pre-programmed decision logic that maps specific housing states to appropriate power levels, allowing rapid automatic adjustment without real-time complex calculations or external guidance.
Data Source
AI summary
A communication system includes a variable device, which is one of a management device and a terminal device, having a power determination unit and a transmission instruction unit. State information indicates a state of a housing that houses the communication system. A power determination unit is configured to determine a transmission power value as an applicable power value for a transmission of a wireless communication signal to a target device to achieve a predetermined communication quality when the state of the housing has changed based on the state information. The target device, which is the other of the management device and the terminal device, is a device with which the variable device communicates. A transmission instruction unit instructs a wireless communication device in the variable device to transmit the wireless communication signal to the target device at the applicable power value.