As a telecommunication protocol , bluetooth wireless technology ensures communication compatibility worldwide . it provides an open - standard of wireless interface and control software with a low - cost , low - power consumption solution . with industry - wide support , bluetooth wireless technology free you from wired connections - enabling links between mobile computers , mobile phones , portable handheld devices , and connectivity to the internet 蓝牙技术作为一个全球统一的无线通信标准，其目的在于建立通用的低功耗、低成本无线电空中接口及其控制软件的公开标准，使通信和计算机进一步结合，使不同厂家生产的便携式设备在没有电线或电缆互相连接的情况下，能在近距离范围内具有互用、相互操作的性能。
Ann ( artificial nerve network ) is the simulation of biologic nerve system . ann is a kind of network , in which a quantity of calculation cells ( nerve cells ) joint each other . although ann ca n ' t really reflect man ' s cerebral function , it is able to be an abstraction , simplification and simulation of the biologic nerve system , and it occupies a dominant position in economic prediction field 人工神经网络是人们对生物神经系统的模拟，是由大量的处理单元(神经元)互相连接而成的网络，人工神经网络虽然并没有完全真实地反映大脑的功能，但它能够对生物神经网络进行某种抽象、简化和模拟，在经济系统预测方面具有较大的优势。
