作者：刘锋, 高忠林, 郭锦华, 翟宝亮, 徐昊

作者单位：中船重工第七零七研究所，天津 300131

关键词：多传感器;机器人焊钳;贝叶斯决策;数据融合;性能评估

摘要：

为更好地评估设备性能，建立一种可视化的、可靠的机器人焊钳性能评估方法，与传统的性能评估方法不同，该方法将多传感器采集的多参数特征信息通过代数运算进行高精度融合，并绘制Chernoff face图像。同时设计一种有效的Chernoff face图像模式特征矩阵提取方法，将Chernoff face图像转换为二值图像，并且每个二值图像可存储为一个二进制特征矩阵。利用贝叶斯决策建立机器人焊钳性能分类器，通过样本模式特征矩阵最终获得设备性能的有效描述。分类性能测试结果表明，该方法显著提高Chernoff face技术在机器人焊钳性能评估中的适用性和效率，具有可行性、有效性和可靠性。

Performance evaluation of robot welders based on Chernoff face
LIU Feng, GAO Zhonglin, GUO Jinhua, ZHAI Baoliang, XU Hao
NO. 707 Research Institute of CSIC, Tianjin 300131, China
Abstract: To better evaluate the performance of the equipment, a visual and reliable performance evaluation method for robot welders is developed, which is different from the traditional performance evaluation method in that the multi-parametric feature information collected from multiple sensors is fused with high precision through algebraic operations and the Chernoff face image is plotted. An effective Chernoff face image pattern feature matrix extraction method is designed, which converts the Chernoff face image into a binary image, and each binary image can be stored as a binary feature matrix. Bayesian decision is used to build a robot welder performance classifier, and the sample pattern feature matrices are used to obtain an effective description of the device performance. The classification performance test results show that the method significantly improves the applicability and efficiency of the Chernoff face technique in the performance evaluation of robot welders, with feasibility, validity and reliability.
Keywords: multi-sensor;robot welders;Bayesian decision;data fusion;performance evaluation
2021, 47(11):53-58  收稿日期: 2020-12-11;收到修改稿日期: 2021-01-11
基金项目:
作者简介: 刘锋（1994-），男，河北保定市人，助理工程师，硕士，主要研究方向为信息采集与性能评估
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