Development of Telecommunication System to Support Disaster Relief Acts Using A Specified Low Power Radio Repeater
Development of Telecommunication System to Support Disaster Relief Acts Using A Specified Low Power Radio Repeater
复制标题
使用特定低功率无线电中继器开发支持救灾行动的电信系统
DOI：
10.1109/tssa.2012.6366011
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发表时间：
2012
期刊：
影响因子：
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通讯作者：
Futoshi Ohyama
中科院分区：
文献类型：
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作者：
Gregg;M.F.;Wakisaka;T. & Hayashi;C;Futoshi Ohyama
在实地的小型医疗队和减灾人员需要强有力和简单的通信手段来处理他们的工作。从去年东北大地震等重大灾害中吸取教训，我们不能依赖现代通信手段。由于交通拥堵和直接灾害影响，移动的电话等现代通信在灾害期间通常会出现故障。在本文中，我们提出了一个简单而强大的手段。我们制作了特定的低功率无线电中继器和太阳能发电系统，在发生灾害时支持市民和基层救灾团队在市一级的活动。本研究所涵盖的日本特定低功率无线电是单工电话FM模拟语音频带400 Mhz。无线电设备已经根据日本法律获得许可证，因此个人使用不需要获得许可证。然而，原始无线电规范具有仅10 mW的非常有限的发射功率。这意味着通信距离非常短。但是，我们通过使用中继器解决了这个问题。在我们的实验中，该系统能够覆盖足够的市政当局。它应该被放置在适当的位置，以实现其目标。此外，我们还发现，使用无线电波传播模拟软件对于掌握可通信区域和找到中继器的位置很重要。
Small medical teams and disaster mitigation personnel in the field need robust and simple communication means to handle their jobs. Learning from major disaster such as last year Tohoku earthquake, we cannot depend on modern communication means. Modern communication such as mobile phone usually will be malfunction during disaster time due to traffic congestion and direct disaster impacts. In this paper we proposed a simple and robust means. We created the specified low-power radio repeater with solar power system that supports the citizens and grassroots disaster relief team's activities at the municipal level in the event of a disaster. The Specified low-power radio in Japan covered in this study is a simplex telephone FM analog voice band 400 Mhz. The radio equipments have already license under the laws of Japan, so personal use is not necessary to obtain a license. However the original radio specification has a very limited transmit power of only 10 mW. It means that the communication distance is extremely short. However, we had solved this problem by using the repeater. In our experiments, the system was able to cover enough of the municipality. It should be placed in the appropriate location to achieve its objective. In addition, we also found that the use of radio wave propagation simulation software is important in order to grasp the area can communicate and to find the location of the repeater.