通过手机自我学习降低手机辐射的研究

发布时间：2018-02-16 02:15

本文关键词： 无线网络辐射算法　出处：《电子科技大学》2014年硕士论文　论文类型：学位论文

【摘要】：科技现代化的过程中,科技给人们带来了无尽的便利。但福兮祸所至,无处不在的射频辐射也危害着人们的健康:无线路由、电脑WiFi、手机辐射等等。医生也特别建议孕妇远离辐射。众多研究表明手机辐射在细胞层面影响蛮大,而对生殖细胞的影响则更是让人关注。因为新生儿胚胎细胞分裂初期,最容易受辐射影响引起意想不到的细胞变异,从而影响胎儿的正常发育。长期处在射频辐射下,容易引起烦躁的心理情绪、影响睡眠,甚至引起神经衰弱、抑郁等健康问题。不少研究已经发现手机射频对人体不同组织,有着不同程度的伤害。有研究分析电磁场环境下分子结构会发生变化,发现有50%的研究都表明,RF辐射会损伤DNA、引起染色体结构变化,从而会导致细胞功能失常、细胞癌变、甚至细胞死亡。2011年,WHO已宣布将手机辐射置为Group2B的“可能性致癌”分类中。手机,相比于其他辐射如WiFi、基站辐射,其特点在于通常离大脑很近,频率更低,电磁辐射更强。根据路损公式,电磁辐射强度,是根据发射源距离、射频频率成对数降低的。而路由发射功率为20dBm,笔记本电脑无线发射功率为15dBm,而GSM手机发射功率通常能达到33dBm。并且路由使用2.4GHz射频,手机使用的是900MHz射频。由路损公式不难得出,手机辐射对人体特别是对大脑的辐射伤害,是我们生活环境中最严重的。本论文通过研究蜂窝网原理,确定手机接收到的信号强度增加与辐射减弱的正相关,通过自己设定的四种算法:旋转算法(将用户身体当作一个障碍物原地旋转)、握姿算法(设计对手机不同的握持姿势)、贴合度算法(设定手机与人体头部的不同距离)、统计算法(统计工作日不同时间段手机信号强度的变化特征)来检测影响手机信号强度变化的原因,以及影响手机信号强度变化的程度。其目的便在于,找到手机信号变弱的多种因素,让用户在拨打电话过程中能够找到应对的方法。进而尽量降低手机对人体的辐射,最大限度地保护人体健康。通过本论文的研究,用户自己通过手机可以进行学习,找到能让手机接收信号更强的四种因素,调节这四种因子便可找到通话过程中手机信号强度更大的区间,从而让手机调节发射功率到较低水平并减小辐射。本论文通过不同的实验场景,分析实验结果表明,旋转算法R-ALG、握姿算法H-ALG、贴合度算法P-ALG、统计算法S-ALG分别能够使手机信号强度有15dB、12dB、2dB、34dB的提高。
[Abstract]:In the process of science and technology modernization, science and technology has brought people endless convenience. But the good luck and disaster, the ubiquitous radio-frequency radiation also endangers people's health: wireless routing, Computer WiFi. cell phone radiation and so on. Doctors especially advise pregnant women to stay away from radiation. Numerous studies have shown that cell phone radiation can have a significant effect on the cellular level, and that the effects on germ cells are even more interesting, because of the early stages of embryonic cell division in newborns. The most vulnerable to radiation is unexpected cell variation, which affects the normal development of the fetus. Being exposed to radiofrequency radiation for a long time can easily lead to irritable psychological emotions, affect sleep, and even cause neurasthenia. Depression and other health problems. Many studies have found that radio frequency of mobile phones can damage different tissues of the human body to varying degrees. Some studies have analyzed changes in molecular structures under electromagnetic fields. It has been found that 50% of the studies have shown that RF radiation can damage DNA and cause changes in chromosome structure, which can lead to cell dysfunction and cell carcinogenesis. Even cell death. In 2011, the WHO announced that mobile phone radiation would be placed in the "probable carcinogenic" category of Group2B. Cell phones are characterized by lower frequencies, usually close to the brain, than other radiation, such as WiFi. base station radiation. Electromagnetic radiation is stronger. According to the road loss formula, the intensity of electromagnetic radiation is based on the distance of the emitter, The RF frequency is logarithmic. The route transmission power is 20dBm, the laptop wireless transmission power is 15dBm. and the GSM mobile phone transmission power usually reaches 33dBm. and the route uses 2.4GHz RF frequency, and the mobile phone uses 900MHz RF. The radiation damage of mobile phone to human body, especially to the brain, is the most serious in our living environment. By studying the principle of cellular network, this paper determines that the increase in the intensity of the signal received by mobile phone is positively related to the weakening of radiation. Through its own set of four algorithms: rotation algorithm (the user's body as an obstacle to rotation in situ, holding posture algorithm (design different holding position of mobile phone, adhesion algorithm) (set the difference between mobile phone and human head). Distance, statistical algorithm (statistics of the characteristics of mobile phone signal intensity change in different periods of the working day) to detect the reasons that affect the change of mobile phone signal intensity. And the extent to which the signal intensity of the mobile phone is affected. Its purpose is to find out the various factors that weaken the signal of the mobile phone, so that the user can find a way to deal with it in the process of making a call, thereby minimizing the radiation of the mobile phone to the human body. To maximize the protection of human health. Through the research in this paper, users can learn from their mobile phones and find out four factors that enable them to receive stronger signals. By adjusting these four factors, we can find a larger range of the mobile phone signal intensity during the call process, so that the mobile phone can adjust the transmitting power to a lower level and reduce the radiation. In this paper, we analyze the experimental results through different experimental scenarios. The rotation algorithm R-ALG, the grip algorithm H-ALG, the pasting algorithm P-ALG, and the statistical algorithm S-ALG can improve the signal strength of the mobile phone by 15 dB / 12dBU / 2dBN / 34dB, respectively.
【学位授予单位】：电子科技大学
【学位级别】：硕士
【学位授予年份】：2014
【分类号】：R594.8;TN929.53

【参考文献】