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AP HANDOVER METHOD IN INDUSTRIAL MOBILE NETWORK BASED ON DOUBLE WIRELESS NETWORK INTERFACE CARDS
其他题名一种基于双无线网卡的工业移动网络AP切换方法
Zeng P(曾鹏); Liu JD(刘金娣); Li D(李栋); Li ZB(李志博); Yu XT(俞雪婷); Yu HB(于海斌)
所属部门工业控制网络与系统研究室
专利权人SHENYANG INSTITUTE OF AUTOMATION, CHINESE ACADEMY OF SCIENCES
授权国家美国
专利类型发明
专利状态公开
摘要The present invention provides an AP handover method based on double wireless network interface cards. A mobile terminal actively scans the signal strength of an AP, compares the scanned signal strength with the signal strength of a currently accessed AP, and if the signal strength is greater than the signal strength of the current AP, starts handover; otherwise, continuously scans till the handover succeeds. To reduce the handover delay and in accordance with the characteristic that the moving paths are basically fixed in industrial application scenarios, the present invention provides a pre-learning mechanism, that is, before formal application, information such as the location of the AP and the handover sequence in the application scenario is learned and stored in a terminal node, so that specific scanning and handover can be implemented in formal application. The present invention solves the problem of rapid AP handover in the industrial mobile network scenario, the double wireless network interface cards are used to achieve handover without interruption, and the pre-learning mechanism is used in specific industrial application scenarios, so the scanning delay is further reduced.
优先权数据cn201410719075.5 20141130;cn201410719075 20141130;cn2014095571 20141230
PCT属性
申请日期2014-12-30
2017-11-23
申请号US201415527633
公开(公告)号US2017339615A1
语种英语
产权排序1
文献类型专利
条目标识符http://ir.sia.cn/handle/173321/21439
专题工业控制网络与系统研究室
作者单位SHENYANG INSTITUTE OF AUTOMATION, CHINESE ACADEMY OF SCIENCES
推荐引用方式
GB/T 7714
Zeng P,Liu JD,Li D,et al. AP HANDOVER METHOD IN INDUSTRIAL MOBILE NETWORK BASED ON DOUBLE WIRELESS NETWORK INTERFACE CARDS[P]. 2017-11-23.
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