# Data Sensing and Processing Tensioning System Based on the Internet of Things
## 5 Case Study and Analysis
### Application Display and Analysis
#### 5.2.3 Job Statistics Analysis  
The application service layer extracts the time and various control indicators in the job data and statistically analyzes the results of the tensioning job in line with the rules in the business rule \begin{table}
\begin{tabular}{c c c c c c c c c c} \hline \hline  & & \multicolumn{3}{c}{**Force (kN)**} & \multicolumn{6}{c}{**Displacement (mm)**} \\ \cline{3-10} No. & \multirow{2}{*}{**Channel**} & \multirow{2}{*}{**Initial**} & \multirow{2}{*}{**Control**} & \multicolumn{3}{c}{**Initial**} & \multicolumn{3}{c}{**Control**} & \multirow{2}{*}{**Calcula-Tive**} & \multirow{2}{*}{**Theorem-Tical**} & \multirow{2}{*}{**Deviation**} \\  & & & & **No. 1** & **No. 2** & **No. 1** & **No. 2** & & \\  & & & & **Jacks** & **Jacks** & **Jacks** & & & \\ \hline
1 & ZN8 & 338.8 & 1694.1 & 48.2 & 47.1 & 135.6 & 137.1 & 208.4 & 198.4 & 5.0 \\
2 & YN8 & 338.8 & 1694.1 & 49.5 & 47.4 & 137.5 & 128.7 & 198.2 & 198.4 & \(-\)0.1 \\
3 & ZN9 & 345.6 & 1728.2 & 49.0 & 47.8 & 135.3 & 134.9 & 203.4 & 198.6 & 2.4 \\
4 & YN9 & 345.6 & 1728.2 & 46.9 & 45.4 & 134.1 & 126.6 & 197.1 & 198.6 & \(-\)0.8 \\
5 & ZN1a & 450.0 & 2249.9 & 44.2 & 44.6 & 129.3 & 132.7 & 203.1 & 198.4 & 2.8 \\
6 & ZN2d & 1289.0 & 1687.4 & 35.3 & 37.4 & 63.9 & 65.8 & 199.4 & 201.4 & \(-\)1.0 \\
7 & YN2d & 1289.0 & 1687.4 & 29.5 & 29.0 & 57.4 & 60.7 & 200.1 & 201.4 & \(-\)0.7 \\
8 & ZN2a & 1289.0 & 1687.4 & 36.3 & 36.7 & 63.9 & 64.2 & 195.9 & 201.4 & \(-\)2.7 \\
9 & YN2a & 1289.0 & 1687.4 & 33.0 & 32.5 & 62.3 & 56.8 & 195.5 & 201.4 & \(-\)2.9 \\
10 & ZN5 & 345.6 & 1728.2 & 50.9 & 54.0 & 133.7 & 139.6 & 197.1 & 194.6 & 1.3 \\ \hline \hline \end{tabular}
\end{table} 
Table 5: Tensioning records. Figure 14: Tensioning data browsing. (**a**) Comparing and analyzing forces of No. 1 jacks. (**b**) Comparing and analyzing forces of No. 2 jacks. (**c**) The comparison of forces of No. 1 and No. 2 jacks. (**d**) The comparison of displacement of No. 1 and No. 2 jacks. base. The trends of job numbers, passing are shown by curves in month, as illustrated in Figure 15a. In this figure, the solid line represents the number of job numbers and the dotted line represents the number of job numbers. It can be seen from the figure that the two numbers are very similar, resulting in the two curves approaching coincidence. The trends of passing rates are shown by curves in month, as shown in Figure 15b. As can be seen from the figure, the passing rate is between 98.76 and 100. Visualized statistical analysis can provide a decision-making basis for follow-up adjustments and quality controls. Although the traditional tensioning system provides such functions as automatic data acquisition and control, it lacks functions such as remote monitoring, visual analysis, and early warning pushing. When an abnormality occurs during the tensioning process, the abnormal data cannot be actively pushed to the operation manager in time. The data collected by the traditional tensioning system are only stored on the control computer of the job site, which may lead to the risk of tampering with the job data by the operator, thus failing to ensure the authenticity and validity of the job data. Through the system designed in this paper, the risk of false data can be reduced, and the data of tensioning operation can be analyzed by various curves, which is beneficial to improve the quality management of the tensioning operation. The main differences between the traditional tensioning system and the system designed in this paper are shown in Table 6.