-
公开(公告)号：AU534892B2
公开(公告)日：1984-02-16
申请号：AU6954481
申请日：1981-04-15
Applicant: SERVO CORP OF AMERICA
Inventor： BAMBARA JOSEPH E , SANVILLE W WOODWARD
Abstract: A railroad car hot box detector system is provided which includes a variable circuit means for processing the heat signal generated by an infra-red detector viewing a sensing zone along a section of track. The system includes a conditioning circuit which determines one or more conditions of the train (such as the wheel speed or temperature of the car bottom) and uses that information to vary the processing circuit to enable the heat signal to be processed optimally for the detected condition.
-
272.发明专利
公开(公告)号：CA1161515A
公开(公告)日：1984-01-31
申请号：CA372018
申请日：1981-02-27
Applicant: SERVO CORP OF AMERICA
Inventor： SANVILLE W WOODWARD
Abstract: SPEED INDEPENDENT SYSTEM FOR OBTAINING PRESELECTED NUMBERS OF SAMPLES FROM OBJECT MOVING ALONG FIXED PATH A speed independent system for obtaining a preselected number of samples from an object moving along a fixed path, such as a railroad train passing through a sensing zone along the section of track. The sensing zone is defined by a pair of wheel sensors. Upstream of the sensing zone a third sensor is positioned. The distance between the third sensor and the closer of the pair of sensors comprises a reference distance which is the length of the sensing zone multiplied by a known multiple. The time for the train to pass through the reference distance is obtained and then divided by a divisor comprising the product of the known multiple and the desired number of samples to obtain a single interval. During the time the train passes through the sensing zone consecutive intervals are counted off to obtain the desired number of samples.
-
公开(公告)号：CA1159141A
公开(公告)日：1983-12-20
申请号：CA383257
申请日：1981-08-05
Applicant: SERVO CORP OF AMERICA
Inventor： BAMBARA JOSEPH E
Abstract: OBJECT IDENTIFICATION SYSTEM UTILIZING CLOSED CIRCUIT TELEVISION A system to permit the visual observation of objects moving along a fixed path. The object is viewed through a television camera which images the object through an optic axis bending element. The bending element is angularly rotated in a sawtooth manner with the slope of the sawtooth determined by the speed at which the object moves along the path so as to track the object to immobilize the scene viewed by the mirror,
-
公开(公告)号：GB2072836B
公开(公告)日：1983-08-17
申请号：GB8104005
申请日：1981-02-10
Applicant: SERVO CORP OF AMERICA
IPC: A61B17/70 , B61K9/00 , A61B17/86 , A61B19/00 , A61F2/00 , A61F2/30 , A61F2/44 , B61K9/06 , B61L1/10 , G01J5/10
Abstract: An improved method and circuit is provided for processing waveforms from a railway car heat signal to eliminate spurious signals and to differentiate between roller bearings and friction bearings in a railroad hot box detector system. The waveforms generated by passing bearings are discretely sampled and spurious signals are eliminated by considering only those signals that fall within the crossing points of a threshold value. Discrimination between roller bearings and friction bearings is obtained by determining the ratio of the sum of the discrete values of the amplitude of the waveform within a first set of samples between the crossing points to the sum of the discrete values of the amplitude of the waveform within a second set of samples between the crossing points.
-
公开(公告)号：GB8313167D0
公开(公告)日：1983-06-22
申请号：GB8313167
申请日：1983-05-13
Applicant: SERVO CORP OF AMERICA
Abstract: An improved heat sensing tip for a temperature sensing device is provided. The tip comprises an elongated shell of heat conductive material. A temperature probe is positioned for movement within the shell toward and away from an opening in the shell. A cap of heat conductive material is positioned at the front of the probe. A spring urges the cap in contact with the shell for heat conductivity between the two when the device is not in operation. When the device is in operation, the spring bias is overcome thereby providing an insulating air gap between the shell and the tip.
-
Patent Agency Ranking
-
公开(公告)号：GB2107453A
公开(公告)日：1983-04-27
申请号：GB8221938
申请日：1982-07-29
Applicant: SERVO CORP OF AMERICA
Inventor： GALLAGHER CORNELIUS A
Abstract: A hot box detector system is provided in which an infra-red scanner (16) is arranged to scan the wheel bearings of railway rolling stock passing over a section of track (10) and to generate signals which are processed to determine the temperature of the bearing, the nature of the bearing, and, for signals derived from bearings within a closed housing (24, 26), to determine if the scanned surface of the housing is an inner sidewall (32, 34) or an outer sidewall (36, 38) of the housing (24, 26) relative to the bogie (22) to which the bearing belongs. Train speed is also determined from wheel detectors 12, 14. The signals are then normalised to account for differences in the heat dissipating characteristics of the inner outer sidewalls, and the air stream cooling resulting from the movement of the train before being analyzed to determined whether or not the bearing is overheated.
-
公开(公告)号：BR8106144A
公开(公告)日：1982-09-08
申请号：BR8106144
申请日：1981-09-25
Applicant: SERVO CORP OF AMERICA
Inventor： SANVILLE WOODWARD W
Abstract: A method is provided for determining whether an output signal from a magnetic railway wheel detector is produced by the actual passage of a wheel over the transducer. The output signal is compared with an amplitude threshold value and the time period between the zero crossing point and the time at which the signal attains amplitude threshold is compared with a time threshold level. The thresholds are set as a function of the speed of the train. Unless the thresholds are exceeded the output signal is disregarded.
-
公开(公告)号：GB2085255A
公开(公告)日：1982-04-21
申请号：GB8121075
申请日：1981-07-08
Applicant: SERVO CORP OF AMERICA
Abstract: A system to permit the visual observation of objects moving along a fixed path. The object is viewed through a television camera which images the object through an optic axis bending element. The bending element is angularly rotated in a sawtooth manner with the slope of the sawtooth determined by the speed at which the object moves along the path so as to track the object to immobilize the scene viewed by the mirror.
-
-
-
-
-
-
-
-
-
Search Results
340
records
(took 0.026 seconds)
