Think modern intelligent mobile phone should consider these, more safety first, well, and difficulty should not quite, (using infrared?) The key is thought, let's may not take the computer, not DaiShou electricity, do not take navigation, don't even take mosquito-repellent incense,, but we must carry a cell phone, and mobile phone anything is possible,,,,,,, also should consider to smartphone,


觉得现代智能手机应该考虑这些，比较安全第一嘛，而且难度应该不大，(利用红外?)关键是思想，咱们可能不 带电脑，不带手电，不带导航，甚至不带蚊香，，但是我们肯定带手机，，手机一切皆有可能，，，智能机也应该 考虑到，