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1. 发明授权

US5559894A Automated meter inspection and reading 失效
标题翻译：自动仪表检查和阅读
公开(公告)号：US5559894A
公开(公告)日：1996-09-24
申请号：US84458
申请日：1993-06-28
申请人： David J. Lubliner , Jaskaran Dhaliwal , John Gidney , Gerald E. Gore , Jack J. Greenfeder , Joshua Greenfeld , Melvin C. Hinton , William McHugh , Anthony Parsio , Ian Rintel , Harry T. Roman , Jake Vogelaar
发明人： David J. Lubliner , Jaskaran Dhaliwal , John Gidney , Gerald E. Gore , Jack J. Greenfeder , Joshua Greenfeld , Melvin C. Hinton , William McHugh , Anthony Parsio , Ian Rintel , Harry T. Roman , Jake Vogelaar
IPC分类号： G01D5/39 , G06K9/00
CPC分类号： G01D5/39
摘要： A method and device, including a portable embodiment, for the automated inspection of devices having different visual changeable and non-changeable indicia on the faces thereof. Specific devices include meters, particularly electric usage meters, for detection of tampering, for improving efficiency of maintenance procedures and for usage in reading the meters for billing purposes. Meters of various heights, configuration and construction are fixed into designated positions and are inspected by visual computer-linked camera scanning, to determine meter periphery and a location reference point, and imaging of identifying portions of meter faces relative to the determined location reference point. The identifying portions are compared with correlative templates of existing meter types, stored in computer memory. Identification of specific meter type permits exact location and subsequent OCR identification of the specific meter number (with use history) and parameters (voltage, amperage, wire connections etc.) for preparation of an operability-inspection station. Meter dial needle positions are read by light scanning of respective determined dial positions, and imaging of connected dark pixels, indicating needle location. A slope determination fixes the reading of the dial, which is used for billing purposes. Adjacent dial needles are in a predetermined relative position with deviations therefrom indicating tampering. Numeral meter readings are OCR scanned for billing purposes.
摘要翻译：一种包括便携式实施例的方法和装置，用于自动检查在其表面上具有不同的视觉可变和不可变标记的装置。特定设备包括用于检测篡改的仪表，特别是电气使用仪表，用于提高维护程序的效率以及用于读取仪表以用于计费目的。各种高度，配置和结构的仪表固定在指定位置，并通过视觉计算机连接的摄像机扫描进行检查，以确定仪表周边和位置参考点，以及相对于确定的位置参考点识别仪表面部分的成像。将识别部分与存储在计算机存储器中的现有仪表类型的相关模板进行比较。特定仪表类型的识别允许准确的位置和随后的OCR识别用于准备可操作性检查站的特定仪表编号（具有使用历史）和参数（电压，安培数，电线连接等）。通过各自确定的拨盘位置的光扫描读取计量表拨针位置，以及连接的暗像素的成像，指示针位置。斜率确定修复了用于计费目的的拨号盘的读数。相邻的拨号针位于预定的相对位置，其偏离指示篡改。数字表读数被OCR扫描以进行计费。

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