7MF4034-1BA00-2AB6

7MF4034-1BA00-2AB6

7MF4034-1BA00-2AB6

7MF4034-1BA00-2AB6

7MF4034-1BA00-2AB6

物流动行业的销系统，一般由多个属下分店、连锁总部、配送中心等机构结合。行业的总部、分店、配送中心常常处于一个城市两样的地理位置，它们各自的局域网服务器需经过Inte方法实即兴长途连接。销行业信息经管体系选择散布式数据库构造：一级数据服务器设在总部，二级数据服务器设在各分店，所有服务器在整体上组成一个散布式数据库体系。

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物流动行业商品销构造框图如图1所示，每个销店由支出体系、进货体系、无线手持终端、经管体系结合，4个体系由计算机网络连接起来。支出体系、进货体系、无线手持终端的核心装备同为RFID读写器，区别在于支出体系是从数据库中删除商品记录，进货体系是向数据库中添加以商品记录，而无线手持终端供主顾和任务人员应用。

2.2 体系硬件设计

读写器是射频识别体系不行缺乏的硬件装备装配，是体系与诸多流淌的电子标签举行数据对换的器，是体系运转的关头环节，其技术参数指标对体系的整体机能和可靠性有着确定性影响。硬件设计是确定读写器机能的关头，其目的是要达成浏览距离远、识别速比值快、识别比值100%的请求。一般射频读写器的设计首要由把持模块、射频收发模块、天线单元、通讯接口模块和电源模块5有些结合。经度过考虑发明，能行采取一些措施提高浏览器的机能。针对连锁经纪的使用特征，选择一种无源后向散射式RFID读写器更其符合。从构造上，它可以分作2个有些，即射频前端和数字基带。射频前端有些包含了开枪电路、收执电路、环行器和天线;数字基带包含DSP和FPGAchip。就中，开枪电路可以细分为载波电路、调制电路、膨胀电路。图2为读写器构造框图。

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