摘要:
A system for detecting a moving hot bearing or wheel of a rail car is provided. The system includes a first comparator to receive input signals representative of radiation emitted by the moving hot rail car bearing or wheel, and to compare the input signals to a threshold value. The system further includes a counter for counting incidents of the input signals exceeding the threshold value and a second comparator to compare a number of incidents of the input signals exceeding the threshold value to a count threshold as an indication of detection of a hot rail car bearing or wheel.
摘要:
A system for detecting a moving hot bearing or wheel of a rail car is provided. The system includes a first comparator to receive input signals representative of radiation emitted by the moving hot rail car bearing or wheel, and to compare the input signals to a threshold value. The system further includes a counter for counting incidents of the input signals exceeding the threshold value and a second comparator to compare a number of incidents of the input signals exceeding the threshold value to a count threshold as an indication of detection of a hot rail car bearing or wheel.
摘要:
A system for detecting a moving hot bearing or wheel is provided. The system includes a summer for combining an input signal representative of radiation emitted by the moving hot rail car bearing with a feedback signal. The system also includes an integrator to accumulate an error resulting from the combination of the input signal and the feedback signal. The system further includes a feedback loop to feedback output of the integrator to the summer.
摘要:
An apparatus and methods for identifying a defect and/or an operating characteristic of a system being monitored (and/or one or more of the system's components) are described. In an embodiment, orthogonally related data monitored by two or more detectors may be fused to determine whether a component of a system is defective and/or malfunctioning. Additionally or alternatively, data from a first detector may be determined to be accurate using non-orthogonally related data outputted by a second detector. Both types of determinations may be made with minimal or no false indications, which lowers the cost of operating the system being monitored. Embodiments of the invention may also be configured to forecast and/or prevent accidents and/or damage to the system being monitored by predicting whether a defect and/or a malfunction will occur.
摘要:
An apparatus and methods for identifying a defect and/or an operating characteristic of a system being monitored (and/or one or more of the system's components) are described. In an embodiment, orthogonally related data monitored by two or more detectors may be fused to determine whether a component of a system is defective and/or malfunctioning. Additionally or alternatively, data from a first detector may be determined to be accurate using non-orthogonally related data outputted by a second detector. Both types of determinations may be made with minimal or no false indications, which lowers the cost of operating the system being monitored. Embodiments of the invention may also be configured to forecast and/or prevent accidents and/or damage to the system being monitored by predicting whether a defect and/or a malfunction will occur
摘要:
A method and system to detect misalignment of sensors used in train inspection systems are provided. The method includes receiving inputs from a train inspection sensor that is coupled to a railroad track, determining a position of the train inspection sensor using a motion detector, and identifying the inputs received from the train inspection sensor as at least one of acceptable or not acceptable based on the determined position of the train inspection sensor.
摘要:
An apparatus and methods for identifying a defect and/or an operating characteristic of a system being monitored (and/or one or more of the system's components) are described. In an embodiment, orthogonally related data monitored by two or more detectors may be fused to determine whether a component of a system is defective and/or malfunctioning. Additionally or alternatively, data from a first detector may be determined to be accurate using non-orthogonally related data outputted by a second detector. Both types of determinations may be made with minimal or no false indications, which lowers the cost of operating the system being monitored. Embodiments of the invention may also be configured to forecast and/or prevent accidents and/or damage to the system being monitored by predicting whether a defect and/or a malfunction will occur.
摘要:
A method and system to detect misalignment of sensors used in train inspection systems are provided. The method includes receiving inputs from a train inspection sensor that is coupled to a railroad track, determining a position of the train inspection sensor using a motion detector, and identifying the inputs received from the train inspection sensor as at least one of acceptable or not acceptable based on the determined position of the train inspection sensor.
摘要:
A method for inspecting a rail vehicle includes receiving signals representative of temperatures of a wheel of the rail vehicle and generating a sensed wheel temperature profile of the wheel based on the signals. At least a portion of the sensed wheel temperature profile is representative of the temperatures of the wheel. The method also includes identifying waveform attributes in the sensed wheel temperature profile and designating the sensed wheel temperature profile as at least one of a typical wheel profile and an atypical wheel profile based on the waveform attributes in the sensed wheel temperature profile.
摘要:
A system to facilitate reducing false train stops includes an infrared sensor that is coupled to a processing unit. The processing unit is programmed to receive inputs from the sensor, generate a bearing profile using the received inputs, classify the bearing profile as at least one of a typical bearing profile and an atypical bearing profile, and if the bearing profile is classified as a typical bearing profile, analyze the typical bearing profile to determine if at least a portion of the typical bearing profile meets the alarm criteria. A method of reducing train stops and generating maintenance alerts are also described herein.