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一种无线式六维力传感器的研制 被引量:2
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作者 吕志鹏 王卫英 +1 位作者 刘思凡 马成聪 《仪表技术与传感器》 CSCD 北大核心 2021年第1期4-8,共5页
针对旋翼系统在旋转状态下的多个维度的力和力矩信息采集的应用背景,设计了一种带有数据无线发送功能的六维力传感器。建立了传感器弹性体的有限元分析模型,确定了应变片的粘贴位置。通过合理的组桥电路设计,将六个维度的力和力矩以电... 针对旋翼系统在旋转状态下的多个维度的力和力矩信息采集的应用背景,设计了一种带有数据无线发送功能的六维力传感器。建立了传感器弹性体的有限元分析模型,确定了应变片的粘贴位置。通过合理的组桥电路设计,将六个维度的力和力矩以电压信号的方式反馈出来,并设计了相应的信号处理电路使其满足A/D采集模块的范围电压。最后将整个硬件电路以PCB封装在传感器内部,制成传感器样机。 展开更多
关键词 旋翼系统 无线数据发送 六维力传感器 有限元分析 组桥电路设计 传感器样机
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PIR-based data integrity verification method in sensor network
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作者 Yong-Ki Kim Kwangnam Choi +1 位作者 Jaesoo Kim JungHo Seok 《Journal of Central South University》 SCIE EI CAS 2014年第10期3883-3888,共6页
Since a sensor node handles wireless communication in data transmission and reception and is installed in poor environment, it is easily exposed to certain attacks such as data transformation and sniffing. Therefore, ... Since a sensor node handles wireless communication in data transmission and reception and is installed in poor environment, it is easily exposed to certain attacks such as data transformation and sniffing. Therefore, it is necessary to verify data integrity to properly respond to an adversary's ill-intentioned data modification. In sensor network environment, the data integrity verification method verifies the final data only, requesting multiple communications. An energy-efficient private information retrieval(PIR)-based data integrity verification method is proposed. Because the proposed method verifies the integrity of data between parent and child nodes, it is more efficient than the existing method which verifies data integrity after receiving data from the entire network or in a cluster. Since the number of messages for verification is reduced, in addition, energy could be used more efficiently. Lastly, the excellence of the proposed method is verified through performance evaluation. 展开更多
关键词 data integrity VERIFICATION private information retrieval sensor network
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