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公开(公告)号:KR101275702B1
公开(公告)日:2013-06-17
申请号:KR1020120015444
申请日:2012-02-15
Applicant: 목포대학교산학협력단
CPC classification number: Y02E10/723 , Y02P70/523 , F03D15/00 , F03D17/00 , F05B2260/4031 , F05B2260/80 , G01M1/14 , G01M13/021
Abstract: PURPOSE: A method and device for detecting faults in a gear box using vibration signals are provided to perform error diagnosis and classification based on vibration signals of a gear in order to monitor a wind power generator. CONSTITUTION: A method for detecting faults in a gear box using vibration signals comprises following steps. Vibration signals are inputted(S10). Texton signals are converted(S20). Features are extracted by SIFT algorithm(S30). Texton is manufacture in advance(S40). Errors in the gear box are detected(S50). The vibration signals detected from a sensor are inputted at the step, S10. The inputted vibration signals are converted into 2D texton image signals at the step, S20. The Features are extracted using SIFT algorithm based on the converted image signals at the step, S30. The texton dictionary is manufactured based on the extracted features at the step, S40. The errors in the gear box are diagnosed and detected based on the texton dictionary at the step, S50. [Reference numerals] (AA) Start; (BB) End; (S10) Input a vibration signal; (S20) Generate a texton signal; (S30) Extract features using an SIFT algorithm; (S40) Manufacture texton in advance; (S50) Perform inspection and diagnosis
Abstract translation: 目的:提供一种使用振动信号检测齿轮箱故障的方法和装置,以便根据齿轮的振动信号进行误差诊断和分类,以监测风力发电机。 构成:使用振动信号检测齿轮箱中的故障的方法包括以下步骤。 输入振动信号(S10)。 文字信号被转换(S20)。 通过SIFT算法提取特征(S30)。 Texton提前制造(S40)。 检测到齿轮箱中的错误(S50)。 在步骤S10中输入从传感器检测到的振动信号。 输入的振动信号在步骤S20被转换成2D文本图像信号。 使用SIFT算法,在步骤S30,基于转换的图像信号提取特征。 基于步骤S40中提取的特征制造文本字典。 基于步骤S50中的文本字典诊断和检测齿轮箱中的错误。 (附图标记)(AA)开始; (BB)结束; (S10)输入振动信号; (S20)生成文字信号; (S30)使用SIFT算法提取特征; (S40)提前制作文字; (S50)进行检查和诊断
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公开(公告)号:KR1020120114709A
公开(公告)日:2012-10-17
申请号:KR1020110032405
申请日:2011-04-08
Applicant: 목포대학교산학협력단
IPC: G08C17/02
Abstract: PURPOSE: A condition monitoring method for recognizing a fault in an offshore wind power generation system and a device thereof are provided to wirelessly transmit the operation condition of an offshore wind power generator through BCDMA(Binary Code Division Multiple Access) technology and perform signal analysis and fault detection in a CMS(condition monitoring system) terminal based on corresponding data. CONSTITUTION: An analog vibration signal sensed in a sensor unit(20) is converted into a digital vibration signal through an ADC(Analog to Digital Converter)(30). The digital vibration signal is converted into BCDMA-based data in a slave data communication unit(50). A master data communication unit(60) decodes the data. A CMS terminal(90) analyzes the inputted vibration signal. The CMS terminal detects normal operation condition or fault/malfunction condition. [Reference numerals] (10) Offshore wind power generator; (100) Database; (110) Manager terminal; (20) Sensor unit; (30) A/D converter; (40) First router; (50) Slave data communication unit; (60) Master data communication unit; (70) Second router; (80) Internet; (90) CMS terminal
Abstract translation: 目的:提出一种用于识别海上风力发电系统故障的状态监测方法及其装置,通过BCDMA(二进制码分多址)技术无线传输海上风力发电机的运行状况,并进行信号分析, 基于相应数据的CMS(状态监控系统)终端中的故障检测。 构成:在传感器单元(20)中感测到的模拟振动信号通过ADC(模数转换器)(30)转换为数字振动信号。 数字振动信号在从属数据通信单元(50)中被转换为基于BCDMA的数据。 主数据通信单元(60)对数据进行解码。 CMS终端(90)分析输入的振动信号。 CMS终端检测正常运行状态或故障/故障情况。 (附图标记)(10)海上风力发电机; (100)数据库; (110)经理终端; (20)传感器单元; (30)A / D转换器; (40)第一路由器; (50)从属数据通信单元; (60)主数据通信单元; (70)第二路由器; (80)互联网; (90)CMS终端
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