Repeater Sensor Control for Radiation Reduction
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Solution Overview
Problem
Existing repeaters in mobile radio networks emit unnecessary electromagnetic radiation, leading to increased electromagnetic pollution, and there is a need for a method to reduce radiation exposure while maintaining effective communication signals.
Innovation Solution
A repeater system that includes a sensor and a control unit to switch between active and passive operating states based on detected switching signals, reducing transmission power to minimize radiation exposure, with the repeater typically operating in a passive state and only activating when necessary to ensure interference-free communication.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the repeater continuously transmits communication signals in the downlink direction, then connectivity and signal coverage are maintained, but unnecessary electromagnetic radiation is emitted when no mobile radio terminal is present in the building
Solution Approach 1:
The repeater uses sensors to detect the presence of mobile radio terminals in the building and adjusts its transmission state accordingly. When a terminal is detected, the repeater activates to provide signal coverage; when no terminal is present, it deactivates to reduce electromagnetic radiation. This feedback mechanism resolves the contradiction by making transmission conditional on actual communication needs.
Solution Approach 2:
The repeater transitions between static states (active and passive) based on dynamic detection of terminal presence. The system is no longer fixed in a continuous transmission state but adapts its operational state in real-time, switching between active transmission and passive standby modes to balance connectivity requirements with radiation reduction.
2Use of energy by moving object
If the repeater is put completely into standby mode for power-saving purposes, then power consumption is reduced, but transmission capability is lost when needed
Solution Approach 1:
The repeater performs preliminary detection of terminal presence before activating full transmission. By using sensors to detect switching signals indicating terminal presence, the system prepares and activates transmission only when necessary, avoiding unnecessary power consumption while ensuring transmission capability is ready when needed.
Solution Approach 2:
The repeater changes its operational parameters (transmission power, active/passive state) based on detected conditions. It transitions from a passive standby state with minimal power consumption to an active transmission state with full power capability when terminals are detected, and back to passive state when they are not, thus optimizing the balance between power usage and transmission readiness.
3Reliability
If the repeater operates in active state with high transmission power, then communication signals are transmitted without interference, but electromagnetic radiation exposure to individuals is increased
Solution Approach 1:
The repeater operates in periodic cycles, switching between active transmission periods when terminals are present and passive standby periods when they are absent. This periodic operation ensures high-quality signal transmission during active periods while minimizing radiation exposure during passive periods, resolving the contradiction through time-based segmentation of operational states.
Data Source
AI summary
A repeater capable of emitting as little electromagnetic radiation as possible is described. The repeater can transmit communication signals between a base station and a network terminal in a radio transmission network, such as a mobile radio network. The repeater can include a transmitter that can transmit the communication signals as a radio signal to the network terminal. The repeater can also include a sensor for detecting a switching signal and a control unit that can change the transmitter between a passive operating state and an active operating state based on the switching signal. The transmission power of the transmitter can be lower in the passive operating state than in the active operating state.