# Construction and Application of Enterprise Knowledge Base for Product Innovation Design
## 4 Case Study
### Product Innovation Design Process Based on EKB
\begin{array}{cccc}\left(\begin{array}{ ccc}0.5,&0.5,&0.5\\ 0.5,&0.6,&0.7\\ \left(\begin{array}{cc}0.6,&0.8,&0.9\\ 0.7,&0.8\\ 0.2,&0.3,&0.5\\ \end{array}\right)\end{array}\right)\left(\begin{array}{cccc}0.2,&0.3,&0.4\\ 0.5,&0.5,&0.5\\ 0.5,&0.6,&0.7\\ 0.6,&0.7,&0.8\\ 0.2,&0.3,&0.5\\ \end{array}\right)\left(\begin{array}{cccc}0.1,&0.2,&0.3\\ 0.5,&0.5\\ 0.6,&0.7\\ 0.2,&0.3,&0.4\\ \end{array}\right)\left(\begin{array}{cccc}0.1,&0.3,&0.4\\ 0.3,&0.4,&0.6\\ \end{array}\right)\left(\begin{array}{cccc}0.2,&0.3,&0.4\\ 0.3,&0.4,&0.6\\ \end{array}\right)\left(\begin{array}{cccc}0.2,&0.3,&0.4\\ 0.3,&0.4,&0.6\\ \end{array}\right)\left(\begin{array}{cccc}0.6,&0.8,&0.9\\ 0.1,&0.2,&0.3\\ \end{array}\right)\left(\begin{array}{cccc}0.6,&0.7,&0.9\\ 0.5,&0.8\\ 0.5,&0.5\\ 0.5,&0.5\\ \end{array}\right) \tag{14}\]  
\[\widetilde{A}^{(0.5)}=\left[\begin{array}{cccc}\begin{array}{c}\vec{a}_{1 }^{(0.5)}=0.500\end{array}\vec{a}_{12}^{(0.5)}=0.300\end{array}\vec{a}_{13 }^{(0.5)}=0.200\end{array} \vec{a}_{14}^{(0.5)}=0.275\vec{a}_{15}^{(0.5)}=0.6 75\right] \tag{15}\]  
\[\widetilde{B}=\left(\vec{b}_{ij}\right)=\left[\begin{array}{cccc}\left( \begin{array}{cccc}0.5,&0.7,&0.8\\ 0.6,&0.8,&0.9\\ \left( \begin{array}{cc}0.6,&0.8,&0.9\\ 0.6,&0.8,&0.9\\ 0.6,&0.7,&0.9\\ 0.5,&0.5,&0.5\\ \end{array} \right)\left( \begin{array}{cccc}0.5,&0.5,&0.5\\ 0.5,&0.5\\ 0.6,&0.7\\ 0.5,&0.8,&0.9\\ 0.2,&0.3,&0.5\\ \end{array} \right)\left( \begin{array}{cccc}0.2,&0.3,&0.4\\ 0.5,&0.5\\ 0.5,&0.6,&0.7\\ 0.6,&0.7,&0.8\\ 0.2,&0.3,&0.4\\ \end{array} \right)\left( \begin{array}{cccc}0.1,&0.3,&0.4\\ 0.5,&0.5\\ 0.5,&0.5\\ 0.7,&0.8\\ 0.1,&0.2,&0.3\\ \end{array} \right)\left( \begin{array}{cccc}0.1,&0.2,&0.3\\ 0.3,&0.4,&0.6\\ \end{array} \right)\left( \begin{array}{cccc}0.1,&0.2,&0.3\\ 0.3,&0.4,&0.6\\ \end{array} \right)\left( \begin{array}{cccc}0.1,&0.2,&0.3\\ 0.3,&0.4,&0.6\\ \end{array} \right)\left( \begin{array}{cccc}0.2,&0.3,&0.4\\ 0.2,&0.3,&0.4\\ \end{array} \right)\left( \begin{array}{cccc}0.1,&0.2,&0.3\\ 0.5,&0.5\\ 0.5,&0.5\\ \end{array} \right)\left( \begin{array}{cccc}0.2,&0.3,&0.4\\ 0.5,&0.5\\ 0.5,&0.5\\ \end{array} \right) \tag{16}\]  
\[\widetilde{D}=\left(\vec{d}_{i}\right)_{5\times 1}=\left[ \begin{array}{cccc} \left(0.22,&0.34,&0.42\right)\\ 0.42,&0.48,&0.58\end{array} \right) \tag{17}\]  
\[\widetilde{D}^{(0.5)}=\left[0.330,&0.490,&0.585,&0.700,&0.295\right]^{T} \tag{18}\]  
The application of the No.4 technology was a suction device. The sand discharge device obtained by applying the patent circumvention method is shown in Figure 19, which includes a negative pressure chamber, sand suction tube, venturi tube, sand discharge tube, and sand suction tube. The sand in the separator is sucked out through the internal and external pressure difference of the separator and discharged from the sand discharge tube. \begin{table}
\begin{tabular}{c c c} \hline
**No.** & **Patent Number** & **Patent Name** & **Explanation** \\ \hline
1 & CN113374010B &
\begin{tabular}{c} River silt and mud cleaner for water \\ conservancy projects \\ \end{tabular} & The brush and water work together to remove the sludge. \\ \hline
2 & CN101291746B & Mud Shaker & Solids are removed from the sieve by shaking. \\ \hline
3 & CN111438003A &
\begin{tabular}{c} A centrifuge for the preparation of \\ disinfecting bath liquid \\ \end{tabular} & Using high-pressure water to remove residual slag. \\ \hline
4 & CN211690504U & A lake bottom sludge suction device &
\begin{tabular}{c} The mud is sucked in by the negative pressure generated \\ by the vacuuming device and discharged by the \\ pressurizing device. \\ \end{tabular} \\ \hline
5 & CN213111146U & A magnetic suction conveyor & Magnetic solids are moved by magnetic traction. \\ \hline \end{tabular}
\end{table} 
Table 4: Technologies through retrieving patents. Figure 19: The structure of sand discharge device. Step 4: Searching innovative solutions. The innovative preliminary solution of the automatic sand discharge separator was determined through the integration of all of the technical units.