Wireless Channel Scanning for Early Apparatus Identification
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Solution Overview
Problem
Existing systems struggle to efficiently and early identify apparatuses performing wireless communication for setting and control purposes.
Innovation Solution
A control device that performs wireless communication through one channel selected from multiple channels, waits for identification signals with a higher proportion of time or number of receptions in the transmission channel, and alternates scanning across other channels, enabling early detection and setting of apparatuses.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If the control device scans all N channels with equal time proportion (1/N each), then all channels are covered uniformly, but the apparatus transmission channel cannot be detected early enough
Solution Approach 1:
The patent applies local quality by allocating different scanning time proportions to different channels based on their importance. The predetermined transmission channel receives a greater proportion of scanning time (greater than 1/N) compared to other channels, creating a non-uniform scanning strategy that prioritizes the channel where apparatus are most likely to transmit identification signals.
Solution Approach 2:
The patent changes the parameter of scanning time allocation from equal distribution (1/N for each channel) to unequal distribution (greater than 1/N for the predetermined channel). This parameter modification allows the system to optimize detection speed for the transmission channel while maintaining coverage of other channels.
2Loss of time
If the control device increases scanning frequency on the predetermined transmission channel, then early detection of apparatus is achieved, but scanning coverage of other channels is reduced
Solution Approach 1:
The patent implements local quality by differentiating the scanning strategy for the predetermined transmission channel from other channels. The transmission channel receives enhanced scanning attention with greater time proportion, while other channels maintain baseline scanning coverage, achieving both early detection and comprehensive coverage.
Solution Approach 2:
The patent applies partial action by allocating excessive scanning time to the predetermined channel (greater than the uniform 1/N proportion) while reducing time for other channels. This partial enhancement focuses resources on the most critical channel without completely neglecting other channels.
Data Source
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Figure 3
Figure 4(a)~4(e)
AI summary
A control device (10) includes a wireless IF (11) that (a) performs wireless communication through one channel selected from N (where N is an integer of 2 or more) channels, and (b) when not performing wireless communication, waits for reception of an identification signal to be transmitted by the apparatus while scanning the N channels, and receives the identification signal; and a provider (14) that refers to the identification signal received by the wireless IF (11), communicably connects to the apparatus, and provides setting information of the apparatus to the apparatus. A transmission channel through which the apparatus transmits the identification signal is predetermined, and the proportion of the time or number of times to wait for reception in the transmission channel in a total duration of the scanning by the wireless IF (11) is greater than 1/N.