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| Hybrid Data Compression Algorithm Based on BS-PLOT for Remote Monitoring of Construction Machinery |
| LI Yanming,L Huijuan,YUAN Jin，LIU Chengliang |
| (School of Mechanical Engineering, Shanghai Jiaotong University, Shanghai 200240, China) |
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Abstract According to the condition signal’s feature, this paper proposed a hybrid data compression algorithm based on the backward scope (BS) and piecewise linear online trending (PLOT) algorithm. Within the maximum time limit, the algorithm uses BS to estimate the data stabilization, then adopts PLOT to compress the fluctuant data, considering the time attribute of data and the detection of outliers in noisy environment. This method was applied to the remote monitoring system for tower crane. The result indicates that the proposed method with antidisturbance property can improve the compression efficiency and transmission efficiency.
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Received: 03 July 2009
Published: 28 July 2010
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