Wireless Information Distribution Apparatus Dynamic Radio Wave Intensity Control
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Solution Overview
Problem
Existing wireless information distribution apparatuses struggle to maintain a constant radio wave reach due to variations caused by the number and distribution of people, leading to potential interference between nearby systems, as they adjust transmission power based on estimated person count without accounting for physical frame, posture, or presence of reflective objects, resulting in incorrect information distribution to terminals.
Innovation Solution
A wireless information distribution apparatus that adjusts its radio wave intensity based on both the number of people present and the likelihood of nearby competing systems, using data on radio wave reception to minimize interference by dynamically adjusting transmission power.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If transmitted radio wave intensity is increased to ensure constant reachable distance, then information distribution reliability is improved, but interference with other wireless information distribution apparatuses increases
Solution Approach 1:
The patent implements dynamic adjustment of transmitted radio wave intensity based on real-time detection of surrounding environment (number of persons, their positions, and presence of other apparatuses). The control unit continuously monitors conditions and adjusts transmission power accordingly, transitioning from static to dynamic operation to resolve the contradiction between maintaining reliable communication and avoiding interference with other systems.
2Reliability
If transmitted radio wave intensity is set high to account for person absorption, then reachable distance stability is improved, but energy consumption increases
Solution Approach 1:
The patent changes the transmission power parameter dynamically based on detected environmental conditions. When fewer persons are detected or they are positioned away from the apparatus, transmission power is reduced. When more persons are present or they approach closer, transmission power is increased. This parameter adaptation resolves the contradiction by consuming energy only when necessary for maintaining reliable communication.
3Reliability
If transmitted radio wave intensity is increased to compensate for uneven person distribution, then coverage in dense areas is improved, but interference range expands
Solution Approach 1:
The patent applies different transmission power levels in different spatial directions based on the local distribution of persons and other apparatuses. The control unit detects the positions of persons and other apparatuses, then adjusts transmission intensity specifically toward areas with high person density while reducing intensity in directions with low density or presence of other systems. This localized adjustment resolves the contradiction by improving coverage where needed without expanding overall interference range.
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 ensures that information distribution is less likely to interfere with other systems by accurately accounting for the environment and competing signals, maintaining reliable communication while avoiding overreach or underreach.
Implementation Method 1
a transmission unit to transmit radio waves for distributing information
Implementation Method 2
since radio waves are absorbed by persons, to make the reachable distance of radio waves constant, it is necessary to adjust a transmitted radio wave intensity corresponding to the number of persons present around the wireless information distribution apparatus
Data Source
AI summary
In a wireless information distribution apparatus, a transmission unit transmits radio waves for distributing information. An adjustment unit acquires first data indicating a degree in which a person is present around the wireless information distribution apparatus. Moreover, the adjustment unit acquires second data serving as an index of a possibility that another apparatus that distributes information by radio waves is present around the wireless information distribution apparatus. The adjustment unit adjusts, based on the first data and the second data, the intensity of the radio waves to be transmitted by the transmission unit.