Aiming at the problems of machine vibration wireless sensor networks node with narrow bandwidth has low network transmission rate and poor real-time capability, especially in mass raw data transmission requirements, a Multi-channel Data Transmission method based on tree-star Hybrid Topology (MDTHT_WJ) is proposed. Firstly, to avoid adjacent channel interference affect parallel communication, allocate channels for each wireless sensor network node with minimizing inter-tree communication interference, each node forms a tree-star hybrid topology network with allocated channel for data transmission after synchronous data acquisition. Then, handshake mechanism and preemptive priority mechanism is utilized to solve network partitions problem. Finally, the network short address of each data acquisition node is regarded as scheduling information, routers broadcast the scheduling information with beacons, and each data acquisition node decides to whether transmit data or sleep according to the scheduling information, realizing the time-scheduled inner-tree communication with minimizing power consumption. Comparative experiment with carrier sense multiple access with collision avoidance is carried out and experiment results indicate that the network transmission rate of machine vibration wireless sensor networks can be improved effectively by this method.
[ 1 ] 曾贵伟, 汤宝平, 邓蕾,等. 机械振动无线传感器网络节点高精度数据采集方法[J]. 振动与冲击, 2016, 35(16):59-63.
ZENG G W, TANG B P, LEI D, et al. A high precision method for mechanical vibration data acquisition based on wireless sensor networks node [J]. Zhendong Yu Chongji/journal of Vibration & Shock, 2016, 35(16):59-63.
[ 2 ] 黄庆卿, 汤宝平, 邓蕾,等. 无线传感器网络子带能量自适应数据压缩方法[J]. 仪器仪表学报, 2014, 35(9):1998-2003.
HUANG Q, TANG B, DENG L, et al. Subband energy adaptive data compression method for wireless sensor networks[J]. Chinese Journal of Scientific Instrument, 2014,35(9):1998-2003.
[ 3 ] 汤宝平, 黄庆卿, 邓蕾,等. 机械设备状态监测无线传感器网络研究进展[J]. 振动、测试与诊断, 2014, 34(1):1-7.
TANG B P, HUANG Q Q, DENG L, et al. Research progress and challenges of wireless sensor networks for machinery equipment condition monitoring[J]. Journal of Vibration, Measurement & Diagnosis, 2014, 34(1): 1-7.
[ 4 ] HEO G, JEON J. An Artificial Filter Bank (AFB) for Structural Health Monitoring of Civil Structures – Part2: An Implementation and Evaluation of the AFB[J]. Procedia Engineering, 2015, 114(2-3):564-573.
[ 5 ] FRASER M, ELGAMAL A, HE X, et al. Sensor Network for Structural Health Monitoring of a Highway Bridge[J]. American Society of Civil Engineers, 2014, 24(1):11-24.
[ 6 ] ZHOU G, HUANG C, YAN T, et al. MMSN: Multi-Frequency Media Access Control for Wireless Sensor Networks[C]// Infocom IEEE International Conference on Computer Communications. IEEE, 2006:1-13.
[ 7 ] INCEL O D. A survey on multi-channel communication in wireless sensor networks[J]. Computer Networks, 2011, 55(13):3081-3099.
[ 8 ] CHENG B, CI L, TIAN C, et al. A Multi-channel MAC Protocol with High Throughput for Wireless Sensor Networks[M]// Advanced Technologies in Ad Hoc and Sensor Networks. Springer Berlin Heidelberg, 2014:145-154.
[ 9 ] GUGLIELMO D D, NAHAS B A, DUQUENNOY S, et al. Analysis and experimental evaluation of IEEE 802.15.4e TSCH CSMA-CA Algorithm[J]. IEEE Transactions on Vehicular Technology, 2016:1-1.
[ 10 ] WU Y, LIU K S, STANKOVIC J A, et al. Efficient Multichannel Communications in Wireless Sensor Networks[J]. Acm Transactions on Sensor Networks, 2016, 12(1).
[ 11 ] CHEN Y, GOMES P H, KRISHNAMACHARI B. Multi-channel Data Collection for Throughput Maximization in Wireless Sensor Networks[J]. 2014.
[ 12 ] SAZONOV E, KRISHNAMURTHY V, SCHILLING R. Wireless intelligent sensor and actuator network-a scalable platform for time-synchronous applications of structural health monitoring[J]. Structural Health Monitoring, 2010, 9(5): 465-476.
[ 13 ] BOCCA M, ERIKSSON L M, MAHMOOD A, et al. A Synchronized Wireless Sensor Network for Experimental Modal Analysis in Structural Health Monitoring[J]. Computer-Aided Civil and Infrastructure Engineering, 2011, 26: 483-499.
[ 14 ] 黄庆卿, 汤宝平, 邓蕾,等. 机械振动无线传感器网络跨层同步采集方法[J]. 仪器仪表学报, 2014, 35(05):1143-1148.
HUANG Q, TANG B, LEI D, et al. Synchronous acquisition method based on cross-layer design for machine vibration wireless sensor networks[J]. Chinese Journal of Scientific Instrument, 2014, 35(5):1143-1148.
[ 15 ] 裴勇, 汤宝平, 邓蕾,等. 基于信标时序补偿的机械振动无线传感器网络同步触发方法[J]. 振动与冲击, 2014(03):57-62.
YONG P, TANG B P, LEI D, et al. A WSN mechanical vibration synchronous acquisition trigger protocol based on beacon timing compensation[J]. Zhendong Yu Chongji/journal of Vibration & Shock, 2014, 33(3):57-62.