An improved system for evaluating one or more components of a vehicle is provided. The system includes a set of imaging devices configured to acquire image data based on infrared emissions of at least one vehicle component of the vehicle as it moves through a field of view of at least one of the set of imaging devices. An imaging device in the set of imaging devices can include a linear array of photoconductor infrared detectors and a thermoelectric cooler for maintaining an operating temperature of the linear array of detectors at a target operating temperature. The infrared emissions can be within at least one of: the mid-wavelength infrared (MWIR) radiation spectrum or the long wavelength infrared (LWIR) radiation spectrum.

An on-board monitoring system for bogies or railroad trucks monitors components over time. The system is modular comprising a first modular device for mounting on the vehicle next to a component to be monitored and passing data on to one or more further modular devices. Focussed data acquisition and ongoing monitoring of a component becomes possible. Data transmission and analysis is also considered.

A temperature detection system for railway applications is provided. The system may include at least one infrared (IR) sensing element configured to detect IR signals emitted by a rail or a railcar, and a controller in communication with the at least one IR sensing element. The controller may be configured to receive the IR signals from the at least one IR sensing element, extract IR data corresponding to at least one of a rail and an undercarriage of the railcar from the IR signals, and generate a characteristic thermal profile of at least one of an ambient temperature and a rail temperature based on the IR data.

Techniques for real-time virtual sensing of an axle assembly temperature include determining, at a controller of a vehicle, an initial temperature of an axle assembly of the vehicle based on an ambient temperature and a fluid temperature of a transmission. The techniques include determining, at the controller, an operating mode of the vehicle, the operating mode of the vehicle being one of moving and non-moving. The techniques also include estimating, at the controller, a temperature of the axle assembly based on the initial axle assembly temperature and the vehicle operating mode using an axle temperature model.

Techniques for real-time virtual sensing of an axle assembly temperature include determining, at a controller of a vehicle, an initial temperature of an axle assembly of the vehicle based on an ambient temperature and a fluid temperature of a transmission. The techniques include determining, at the controller, an operating mode of the vehicle, the operating mode of the vehicle being one of moving and non-moving. The techniques also include estimating, at the controller, a temperature of the axle assembly based on the initial axle assembly temperature and the vehicle operating mode using an axle temperature model.

A temperature detection system for railway applications is provided. The system may include at least one infrared (IR) sensing element configured to detect IR signals emitted by a rail or a railcar, and a controller in communication with the at least one IR sensing element. The controller may be configured to receive the IR signals from the at least one IR sensing element, extract IR data corresponding to at least one of a rail and an undercarriage of the railcar from the IR signals, and generate a characteristic thermal profile of at least one of an ambient temperature and a rail temperature based on the IR data.

A device for monitoring rail bogie includes a printed circuit board (14), sensing means (16), and a planar antenna (17). The sensing means (16) measures at least one physical parameter of the rail bogie. The planar antenna (17) is embedded in the printed circuit board. The planar antenna (17) transmits measurements delivered by the sensing means.

A device for monitoring rail bogie includes a printed circuit board (14), sensing means (16), and a planar antenna (17). The sensing means (16) measures at least one physical parameter of the rail bogie. The planar antenna (17) is embedded in the printed circuit board. The planar antenna (17) transmits measurements delivered by the sensing means.

A comprehensive system designed for the predictive maintenance of railcar wheel bearings, integrating multiple sensor modalities. The system includes thermography for temperature mapping, vibration analysis via a three-axis accelerometer, rotational velocity measurement using a rate gyro, and optical spectrometry for lubricant analysis. Each modality contributes to a holistic understanding of bearing health, enhancing maintenance strategies, safety, and operational efficiency in rail transportation.

A comprehensive system designed for the predictive maintenance of railcar wheel bearings, integrating multiple sensor modalities. The system includes thermography for temperature mapping, vibration analysis via a three-axis accelerometer, rotational velocity measurement using a rate gyro, and optical spectrometry for lubricant analysis. Each modality contributes to a holistic understanding of bearing health, enhancing maintenance strategies, safety, and operational efficiency in rail transportation.