\begin{table*}[!tp]
\tiny
\caption{Comprehensive analysis of the existing technologies, specifications, features and critical remarks} \label{table2}
\centering
\begin{tabular}{ p{1cm}| p{2cm}| p{2cm} |p{2cm} |p{1.5cm} |p{1.5cm}|p{1.5cm} |p{1.5cm} |p{3cm}}
\hline \textbf{Ref.} & \textbf{Line inspection} & \textbf{Fault detection} & \textbf{Fault classifications} & \textbf{OTLs deterioration problems} & \textbf{Fault localization} & \textbf{Fault diagnosis} & \textbf{Vegetation encroachment} & \textbf{Monitoring and control} & \textbf{Remarks} \\ [1ex]
\cite{IEEE2} & -- & \checkmark & \checkmark & \checkmark & -- &-- & -- & -- & The focus of the authors is on the methods used for fault detection, classification, and localization. However, fault diagnosis, monitoring, and controlling of OTLs are ignored. \\ [1ex]
% \hline
\cite{IEEE3}& \checkmark & -- & -- & -- & \checkmark &-- & -- & \checkmark & The aim of this article is threefold: a) review the deterioration problems accompanied with OTLs; 2) review existing OTLS inspection methods; 3) design condition monitoring system. However, ignored some crucial factors that significantly effect OTLs. \\ [1ex]
% \hline
\cite{IEEE4} & \checkmark & -- & -- & -- & \checkmark &-- & -- & \checkmark & Authors in this survey highlight gaps in the existing technology used for power lines inspection and provide guidance, how to move forward. However, fault diagnosis, vegetation encroachment, and control aspects of power lines are ignored \\ [1ex]
% \hline
\cite{IEEE5} & -- & \checkmark & \checkmark & \checkmark& \checkmark &-- & -- & The focus of the authors is on fault analysis and fault diagnosis based on intelligent systems. However, the causes of faults are ignored. & \\ [1ex]
% \hline
\cite{IEEE6} & & -- & \checkmark & \checkmark & \checkmark& \checkmark &-- & -- & The authors with support of ESKOM conducted a survey to highlight feasibility of WSN for monitoring and controlling OTLs. However, aspects accompanied with OTLs which compromise monitoring and controlling process are ignored. \\ [1ex]
% \hline
\cite{IEEE7}& -- & \checkmark & \checkmark & \checkmark & \checkmark & -- & -- &-- & This paper is regarding the faults accompanied with power lines and solutions to overcome faulty situations. \\ [1ex]
% \hline
\cite{IEEE8} & -- & \checkmark & \checkmark & \checkmark & \checkmark & -- & -- &-- & The aim of this article is to ensure un-interrupted power transmission by diagnosing power lines faults. However, power transmission interruption are dependent vegetation encroachments and faults. \\ [1ex]
% \hline
\cite{IEEE9} & -- & -- & -- & -- & \checkmark &\checkmark & \checkmark & -- & The aim of authors in this survey is to provide a strong base for research community to design a system that is able to handel these three tasks: monitoring, control, and diagnosis. \\ [1ex]
% \hline
\cite{IEEE10} & -- & -- & -- & -- & \checkmark & \checkmark & \checkmark & -- & The objective of this survey to review remote sensing technologies used for maintenance and monitoring. However, power line inspection is very necessary before maintenance and monitoring. \\ [1ex]
% \hline
\cite{IEEE11} & \checkmark & -- & -- & -- & & -- & -- & -- & The aim of authors is to provide a roadmap for the researcher to design a fully automated power lines inspection system. However, vegetation encroachment is ignored while it is highly related to power lines inspection. \\ [1ex]
% \hline
\cite{IEEE12} & \checkmark & -- & -- & -- & -- & -- &\checkmark & -- & The objective of authors is to cover the existing methods for periodical surveillance of power lines to overcome dangerous vegetation encroachment. \\ [1ex]
% \hline
\cite{IEEE13} & \checkmark & -- & -- & -- & & -- & -- & -- & The aim of authors is to provide a roadmap for the researcher to design a fully automated autonomous power lines inspection system having fast and accurate performance. \\ [1ex]
% \hline
\cite{IEEE14} & -- & -- & -- & -- & -- & \checkmark & -- & \checkmark & This survey is beneficial for both diagnostic and control engineers to overcome the failures and faults in the power system. However, power lines inspection and fault detection is very necessary for fault diagnosis. \\ [1ex]
% \hline
\cite{IEEE16} & \checkmark & -- & -- & -- & -- &-- & -- & \checkmark & The objective of this survey is to review different existing computer vision applications in order to identify a promising technology for power lines management. \\ [1ex]
\hline
\end{tabular}
\end{table*}
答案1
您的表存在的主要问题是它包含 10 列，而您的环境规范tabular仅预见了 9 列。
除了修复这个明显的错误之外，我建议你使用一个tabularx环境，除了第一列之外的所有列都允许自动换行。为了使表格适合页面，我进一步建议你使中间的 8 列宽度更小比右侧列宽。（在下面的示例中，第 10 列的宽度是第 2 列至第 9 列的六倍 [6！]。）最后，通过 (a) 删除所有竖线、(b) 在行之间留出更多空白，以及使用程序包的线条绘制功能绘制booktabs剩余的几条水平线，让您的表格看起来更加“开放”。
经过这些调整，就不再需要使用\tiny字体大小了；\footnotesize只要能做到就行。
\documentclass{IEEEtran}
\usepackage{tabularx,ragged2e}
\newcolumntype{C}{>{\Centering\arraybackslash\hspace{0pt}}X}
\newcolumntype{L}{>{\RaggedRight\arraybackslash}X}
\usepackage{booktabs} % \toprule, \midrule, \bottomrule, and \addlinespace macros
\usepackage{amssymb} % for '\checkmark' macro
\begin{document}
\begin{table*}[p]
\footnotesize % "\tiny" is just much too tiny!
\setlength\tabcolsep{3pt} % default: 6pt
\frenchspacing
\caption{Comprehensive analysis of the existing technologies,
specifications, features and critical remarks}
\label{table2}
\begin{tabularx}{\textwidth}{@{} l
*{8}{>{\hsize=0.65\hsize}C} >{\hsize=3.8\hsize}L @{}}
%% 8*0.65+3.8=9 (= # of X-type columns)
\toprule
%% no need to bold-face the header row
Ref. & Line inspection & Fault detection & Fault classifications &
OTLs deterioration problems & Fault localization & Fault diagnosis &
Vegetation encroachment & Monitoring and control & Remarks \\
\midrule
\cite{IEEE2} & -- & \checkmark & \checkmark & \checkmark & -- &-- & -- & -- & The focus of the authors is on the methods used for fault detection, classification, and localization. However, fault diagnosis, monitoring, and controlling of OTLs are ignored. \\ \addlinespace
\cite{IEEE3}& \checkmark & -- & -- & -- & \checkmark & -- & -- & \checkmark & The aim of this article is threefold: a) review the deterioration problems accompanied with OTLs; 2)~review existing OTLS inspection methods; 3)~design condition monitoring system. However, ignored some crucial factors that significantly effect OTLs. \\ \addlinespace
\cite{IEEE4} & \checkmark & -- & -- & -- & \checkmark &-- & -- & \checkmark & Authors in this survey highlight gaps in the existing technology used for power lines inspection and provide guidance, how to move forward. However, fault diagnosis, vegetation encroachment, and control aspects of power lines are ignored \\ \addlinespace
\cite{IEEE5} & -- & \checkmark & \checkmark & \checkmark& \checkmark &-- & -- & -- & The focus of the authors is on fault analysis and fault diagnosis based on intelligent systems. However, the causes of faults are ignored. \\ \addlinespace
\cite{IEEE6} & & -- & \checkmark & \checkmark & \checkmark& \checkmark &-- & -- & The authors with support of ESKOM conducted a survey to highlight feasibility of WSN for monitoring and controlling OTLs. However, aspects accompanied with OTLs which compromise monitoring and controlling process are ignored. \\ \addlinespace
\cite{IEEE7}& -- & \checkmark & \checkmark & \checkmark & \checkmark & -- & -- &-- & This paper is regarding the faults accompanied with power lines and solutions to overcome faulty situations. \\ \addlinespace
\cite{IEEE8} & -- & \checkmark & \checkmark & \checkmark & \checkmark & -- & -- &-- & The aim of this article is to ensure un-interrupted power transmission by diagnosing power lines faults. However, power transmission interruption are dependent vegetation encroachments and faults. \\ \addlinespace
\cite{IEEE9} & -- & -- & -- & -- & \checkmark &\checkmark & \checkmark & -- & The aim of authors in this survey is to provide a strong base for research community to design a system that is able to handel these three tasks: monitoring, control, and diagnosis. \\ \addlinespace
\cite{IEEE10} & -- & -- & -- & -- & \checkmark & \checkmark & \checkmark & -- & The objective of this survey to review remote sensing technologies used for maintenance and monitoring. However, power line inspection is very necessary before maintenance and monitoring. \\ \addlinespace
\cite{IEEE11} & \checkmark & -- & -- & -- & & -- & -- & -- & The aim of authors is to provide a roadmap for the researcher to design a fully automated power lines inspection system. However, vegetation encroachment is ignored while it is highly related to power lines inspection. \\ \addlinespace
\cite{IEEE12} & \checkmark & -- & -- & -- & -- & -- &\checkmark & -- & The objective of authors is to cover the existing methods for periodical surveillance of power lines to overcome dangerous vegetation encroachment. \\ \addlinespace
\cite{IEEE13} & \checkmark & -- & -- & -- & & -- & -- & -- & The aim of authors is to provide a roadmap for the researcher to design a fully automated autonomous power lines inspection system having fast and accurate performance. \\ \addlinespace
\cite{IEEE14} & -- & -- & -- & -- & -- & \checkmark & -- & \checkmark & This survey is beneficial for both diagnostic and control engineers to overcome the failures and faults in the power system. However, power lines inspection and fault detection is very necessary for fault diagnosis. \\ \addlinespace
\cite{IEEE16} & \checkmark & -- & -- & -- & -- &-- & -- & \checkmark & The objective of this survey is to review different existing computer vision applications in order to identify a promising technology for power lines management. \\
\bottomrule
\end{tabularx}
\end{table*}
\end{document}