-
公开(公告)号：US3872456A
公开(公告)日：1975-03-18
申请号：US44866874
申请日：1974-03-06
发明人： GLAZAR ARTHUR J
CPC分类号： B61K9/06 , B60L3/00 , B60L2200/26 , H03K5/24
摘要： A two-level alarm monitor for use with a hot box detector system of the type having first and second sensors each associated with a rail of a track is provided. The monitor includes means connected to the outputs of the sensors for obtaining the difference between the output signals of the sensors and for comparing the difference alternately to first and second predetermined levels which may, for example, represent ''''warm'''' and ''''hot'''' differential alarm levels or differential alarm levels for friction and roller bearings. The outputs of the sensors are also alternately compared with third and fourth predetermined levels which could, for example, represent ''''warm'''' and ''''hot'''' absolute alarm levels or absolute alarm levels for friction or roller bearings. The output signals from the comparators are demultiplexed and utilized to generate an alarm signal in the event differential signals or absolute alarm signals exceed associated predetermined levels.
摘要翻译： 提供了一种与具有第一和第二传感器的类型的热箱检测器系统一起使用的两级报警监视器，每个传感器与轨道的轨道相关联。 监视器包括连接到传感器的输出的装置，用于获得传感器的输出信号之间的差异，并且用于将差异交替地与第一和第二预定水平进行比较，这可以例如表示“暖”和“热”差分报警 摩擦和滚子轴承的水平或差动报警水平。 传感器的输出也与第三和第四预定水平交替地进行比较，这可以例如表示用于摩擦或滚子轴承的“暖”和“热”绝对报警水平或绝对报警水平。 在差分信号或绝对报警信号超过相关预定电平的情况下，来自比较器的输出信号被解复用并产生报警信号。
-
公开(公告)号：US3812343A
公开(公告)日：1974-05-21
申请号：US39152973
申请日：1973-08-27
申请人： SERVO CORP
发明人： GALLAGHER C , GLAZAR A
CPC分类号： B61K9/06
摘要： A circuit is provided for distinguishing electrical signals generated by a hot box detector scanner in response to a passing roller bearing from those generated in response to a passing friction bearing. The circuit includes first and second capacitors for storing the maximum amplitude of each output signal wave from the scanner and for storing the maximum amplitude of each wave at a predetermined point. The ratio of the charges stored on the capacitors is then obtained. It has been found that for a roller bearing this ratio should approach unity while for a friction bearing the ratio is not close unity.
-
3.发明授权Signal processing system for reading indicia over a wide depth of field 失效信号处理系统，用于在广泛的深度深度读取INDICIA
公开(公告)号：US3792235A
公开(公告)日：1974-02-12
申请号：US3792235D
申请日：1971-12-22
CPC分类号： G06K7/10861 , B61L25/041
摘要： Automatic coded object identification system for reading labels of the type having retroreflective stripes arranged in a vertical array over a wide depth of field to two or more ranges (specifically three in the embodiment described herein). For each vertical scan of the stripes of a lebel by a scanner a set of electrical signals are produced. Each vertical scan also causes one of three processing control signals to be produced in succession. The electrical signals are amplified, shaped, and analyzed to determine if they meet prescribed limits as to pulsewidth measurements for proper label-derived signals. The process control signals control the values of amplification, shaping, and pulse-width measurement limits so that during three successive scans three sets of signals from a label are processed in three different manners. Each of the three process control signals causes the apparatus to optimally process the signals for a label located within a corresponding one of the three ranges. Thus, if a label is within one of the three ranges, the signals produced during one of three scanning operations will be properly processed. When signals are properly processed and found to meet the prescribed limits of pulse-width and other timing criteria, they are stored in a shift register until all the signal data on the label is accumulated. The accumulated data is checked in accordance with pattern recognition and parity checking schemes and if determined to be proper label-derived data it is transmitted to read out apparatus.
摘要翻译： 自动编码对象识别系统，用于读取具有以宽的景深排列成垂直阵列的回射条带类型的标签到两个或多个范围（具体地说在本文所述的实施例中为三个）。 对于通过扫描仪的lebel条纹的每次垂直扫描，都产生一组电信号。 每个垂直扫描也会导致三个处理控制信号之一相继产生。 电信号被放大，成形和分析，以确定它们是否符合关于适当的标签衍生信号的脉冲宽度测量的规定限制。 过程控制信号控制放大，整形和脉冲宽度测量限值，以便在三次连续扫描期间，以三种不同的方式处理来自标签的三组信号。 三个过程控制信号中的每一个使得设备最佳地处理位于三个范围中相应的一个范围内的标签的信号。 因此，如果标签在三个范围之一内，则在三个扫描操作之一产生的信号将被适当地处理。 当信号被正确处理并发现满足规定的脉冲宽度和其他定时标准限值时，它们被存储在移位寄存器中，直到标签上的所有信号数据被累积为止。 根据模式识别和奇偶校验方案检查累积数据，并且如果确定为适当的标签导出数据，则将其发送到读出装置。
-
公开(公告)号：US3708678A
公开(公告)日：1973-01-02
申请号：US3708678D
申请日：1970-10-30
申请人： SERVO CORP
发明人： KREDA E
CPC分类号： G06K7/10851 , H03K5/082 , H04N1/403
摘要： A threshold circuit employs a high gain differential amplifier having a signal source connected to the inverting input connection thereof. Connected between the signal source and the noninverting connection of the differential amplifier is a pair of diodes connected in an opposite polarity arrangement and in parallel. Also connected to the noninverting input connection is a capacitor to hold the signal level at the noninverting input connection constant for a predetermined interval during a polarity reversal of the signal from the signal source. The circuit threshold is maintained at one diode voltage drop relative to the signal from the signal source.
摘要翻译： 阈值电路采用具有连接到其反相输入连接的信号源的高增益差分放大器。 连接在差分放大器的信号源和同相连接之间的是以相反极性排列并联连接的一对二极管。 还连接到同相输入连接的是在来自信号源的信号的极性反转期间将电平保持在非反相输入连接处的信号电平恒定预定间隔的电容器。 电路阈值相对于来自信号源的信号保持在一个二极管电压降。
-
公开(公告)号：US3629572A
公开(公告)日：1971-12-21
申请号：US3629572D
申请日：1970-01-07
CPC分类号： B61K9/06
摘要： An alarm circuit monitor for use with railroad car hot box detection equipment is provided. The monitor, which is connected to hot box detectors adapted to generate signals responsive to the temperature of the bearings on both sides of each axle of a railroad car under consideration, includes a first circuit adapted to trigger an alarm in the event the signal responsive to the operating temperature of either bearing exceeds a threshold level for normally low running temperature bearings and a cancellation circuit to prevent the first circuit from triggering the alarm if the operating temperature of the other bearing also exceeds the low level threshold. A second circuit independent of the first circuit is also connected to the hot box detectors to trigger the alarm in the event the hot box detector signal exceeds a threshold level for normally high running temperature bearings.
-
-
-
公开(公告)号：US3375453A
公开(公告)日：1968-03-26
申请号：US42671965
申请日：1965-01-21
发明人： WILLIAM ADLER
IPC分类号： H03D1/24
CPC分类号： H03D1/24
-
公开(公告)号：US3277294A
公开(公告)日：1966-10-04
申请号：US19226562
申请日：1962-05-03
发明人： HOWELL SABERT N
IPC分类号： A63H19/22
CPC分类号： A63H19/22
-
-
-
-
-
-
-
-
-
搜索结果
168 条记录 (耗时 0.014 秒)