(1.College of Electrical Engineering and Automation,F(xiàn)uzhou University,,F(xiàn)uzhou 350000,,China; 2.Key Laboratory of Industrial Automation Control Technology and Information Processing,, Education Department of Fujian Province,,F(xiàn)uzhou 350000,China)
Abstract: In the industrial field, the application of autonomous inspection and reading tables through mobile robots is more and more widely. The reading of digital display instrument is affected by factors such as illumination, focusing and scene, which has the problem of low recognition accuracy. Because of the above problems, this paper proposes a digital display instrument recognition mechanism based on fusion perception and control. Firstly, the image target detection network is used to identify the digital display instrument and mark the target area. Then an intelligent vehicle control strategy based on image feedback is designed to suppress the influence of fuzzy focus. Then the improved automatic color equalization(ACE) algorithm is used to enhance the image color of digital blocks based on color expansion cutting. Finally, real-time instrument digital recognition is acheived using convolutional recurrent neural network(CRNN). In this paper, the performance of the designed technology is verified by experiments, and the feasibility and efficiency of the method is proved.
Key words : (1.College of Electrical Engineering and Automation,,F(xiàn)uzhou University,,F(xiàn)uzhou 350000,,China; 2.Key Laboratory of Industrial Automation Control Technology and Information Processing,, Education Department of Fujian Province,,F(xiàn)uzhou 350000,China)
目前,,數(shù)顯儀表的數(shù)字識(shí)別方法主要有三種:自動(dòng)抄表(Automated Meter Reading,,AMR)[5]、人工記錄和圖像識(shí)別[6],。很多數(shù)顯式儀表不具有無(wú)線通信模塊或者計(jì)算機(jī)接口,,無(wú)法通過(guò)AMR技術(shù)進(jìn)行自動(dòng)記錄數(shù)據(jù),而且AMR技術(shù)通常需要對(duì)儀表本身進(jìn)行結(jié)構(gòu)改造,,這是一項(xiàng)高成本,、長(zhǎng)時(shí)間以及工作量巨大的工作,。傳統(tǒng)的人工抄表無(wú)法適應(yīng)應(yīng)用廣泛的儀表,迫使研究學(xué)者從其他方面解決這些問(wèn)題,。越來(lái)越多的研究學(xué)者將目光轉(zhuǎn)移到圖像上,,通過(guò)圖像對(duì)數(shù)顯儀表進(jìn)行數(shù)字識(shí)別可以很好地降低成本,提升識(shí)別精度,。