| 摘要 |
PURPOSE: A method for constructing a communication line by using a city gas supply network is provided to send radiowaves(sound waves) through city gas pipes and the inside of the pipes by using a system of supplying city gas through a city gas supply network where each city gas supply place(storage place) is connected to each house by the city gas pipes, thereby realizing a new communication line(communication network). CONSTITUTION: Communication hub base stations for connecting with a basic communication network are installed in each city gas supply place(storage place). A radiowave(sound wave) transceiving antenna for a base station is installed within or at a main pipe for supplying city gas from a city gas supply place. Radio waves(sound waves) are transceived through the antenna. Transceiving antennas for transceiving the radio waves(sound waves) are respectively installed within or at city gas pipes installed at each house, plant, and office, etc. Antenna connection lines are connected to communication modems. |
