郭金服
摘要： 目前中国的老年痴呆患者接近两千万，他们生活不能自理，记忆力衰退，即使在家门口也会迷路，基于此，我设计制作了一款 四维瓷业
蜗轮蜗杆传动“个人卫星定位终端”。本终端以盛单片机ht66fu50为主控芯片，完成对各电路单元的控制，定位成功后终端以短信的形式把定位的经纬度发送到指定的手机上。该终端体积小，重量轻，功耗低，待机时间长，适合于随身携带，目前实测定位误差20米以内。 abstract： now there are 20 million elderly patients with dementia in china. they are unable to care for their life， their memory is failing叶坚颖， and they will get lost even at the door. based on this， the authors designed a “铁托personal satellite positioning terminal”. the key chip of this terminal is scm ht66fu50 which can control the all circuit units. after a successful positioning， this terminal will send the latitude and longitude to phone in the form of text message. this terminal is small and light北京质检总局， and its power consumption is low and standby time is long， so it is suitable for carrying. in recent its positioning error is within 20 metres.
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