Wireless Communication Test System for Pre-Installation Frequency Verification
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Solution Overview
Problem
Installation workers face challenges in determining the suitable frequency band for wireless communication between communication hubs and meters, leading to potential delays and inconvenience in gas, electric power, or water supply due to the need for trial-and-error exchanges of devices after installation, especially in areas with weak radio wave intensity or where cellular networks are absent.
Innovation Solution
A wireless communication test system that includes test devices capable of operating in both 2.4 GHz and 868 MHz frequency bands, allowing workers to pre-test the communication compatibility before installation, using a smartphone-like operation terminal to set device modes and execute tests, and a service van-based communicator to collect and store test results for efficient device selection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If wireless communication test is performed after installation, then communication compatibility can be verified, but installation time is extended and service supply is disrupted
Solution Approach 1:
The patent applies preliminary action by performing the wireless communication test before the actual installation of the communication hub and meter. The test device is temporarily installed at the installation location to conduct the communication test in advance, allowing workers to verify frequency band compatibility before committing to the final installation. This prevents the need for time-consuming device exchanges after installation and avoids disruption to gas, electric power, or water supply.
2Reliability
If wireless communication test is performed after installation, then communication compatibility can be verified, but service supply disruption increases
Solution Approach 1:
The patent applies preliminary action by performing the wireless communication test before the actual installation of the communication hub and meter. The test device is temporarily installed at the installation location to conduct the communication test in advance, allowing workers to verify frequency band compatibility before committing to the final installation. This prevents the need for time-consuming device exchanges after installation and avoids disruption to gas, electric power, or water supply.
3Reliability
If device exchange is performed after installation failure, then communication compatibility is achieved, but installation complexity increases
Solution Approach 1:
The patent applies preliminary action by performing the wireless communication test before the actual installation of the communication hub and meter. The test device is temporarily installed at the installation location to conduct the communication test in advance, allowing workers to verify frequency band compatibility before committing to the final installation. This prevents the need for time-consuming device exchanges after installation and avoids disruption to gas, electric power, or water supply.
Data Source
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AI summary
According to one embodiment, a system includes first and second electronic devices (101, 102, and 103) each including a wireless communication unit (139a, 139b, and 139c) of a first frequency band and a wireless communication unit (139a, 139b, and 139c) of a second frequency band, and a third electronic device (104) that transmits a first instruction to the first or second electronic device (101, 102, and 103). The first or the second electronic device (101, 102, and 103) executes a first test for determining whether the first electronic device (101, 102, and 103) and the second electronic device (101, 102, and 103) are capable of executing wireless communication in the first frequency band or not and transmits a result of the first test to the third electronic device (104).