原子力プラントへの無線技術の適用について
概要
High reliability is essential to wireless communication system in nuclear power plants. Since there are many obstacles made of metals in nuclear power plants, most of transceivers are located in the non-line-of-sight environment. The non-line-of-sight environment makes highly-reliable communication difficult. To solve this issue, we have proposed the rotating polarization wave (RPW) communication for instrument control. In this report, the effectiveness of the RPW is evaluated in the actual factory and the nuclear power plant. As a result, we confirmed the following two points: In the case of the conventional radio, the communication quality changes depending on the antenna angles. By applying RPW, we can improve the received power by 6dB and packet error rate by 10 times. These results prove that RPW can communicate more stably than the conventional radio.
