Abstract: The present disclosure discloses a chip for monitoring performance of a motor and a performance monitoring system for a rotating apparatus. The system includes a sensing module, including a plurality of sensing sensors. The sensing module detecting a working state of the rotating apparatus and generating a working condition signal. A diagnosis module receives the working condition signal from the sensing module, determines a performance state of the rotating apparatus based on the working condition signal, and generates a performance state detection result. The performance state detection result includes a normal performance state and an abnormal performance state. A communication module sends an alarm signal to a central control platform when the performance state detection result is the abnormal performance state. The sensing module, the diagnosis module and the communication module are integrated on the same chip.

Abstract: A temperature sensor includes a base for mounting to a part to be sensed. A temperature sensitive element is mounted to the base. A circuit board is mounted to the base. The temperature sensitive element (2) is electrically connected to the circuit board. The temperature sensor eliminates the conventional structure of mounting a temperature-sensitive element on a circuit board, but separates the temperature-sensitive element from the circuit board so as to be located as close as possible to the sensed component.

Abstract: The present disclosure pertains to a wireless temperature sensor and a communication method thereof. The communication method may include collecting temperature data at a first operating frequency and determining whether the temperature data is within a predetermined threshold range. When the temperature data is within the predetermined threshold range, the method may include transmitting the temperature data to a temperature data receiving device at a second operating frequency by broadcasting without establishing communication connection with the temperature data receiving device. The first operating frequency can be greater than the second operating frequency.

Abstract: The present disclosure provides an installation device for installing a sensor to a component. The installation device includes a first and second clamps connected together for clamping onto the component. A first adjuster is movably assembled to the first and second clamps. A second adjuster is movably assembled to the first adjuster and includes an installing portion for installing the sensor. The first adjuster and the second adjuster can move along different adjusting directions to adjust the direction of the sensor. The sensor installation device has good adaptability and the installing position can be adjusted according to the actual needs. The installation reliability and connection rigidity can be ensured by various ways such as bolt fastening, fastener fixation or adhesion etc., and the vibration signal transmission path is improved. This makes the installation device especially suitable for installation of vibration sensors and ensures vibration sensors optimally collect vibration signals.

Abstract: The invention provides a sensor, which includes a sensing surface; a housing including a recess, the sensing surface is located at the bottom of the recess, and the recess includes at least one side wall and an opening circumferentially surrounding the sensing surface. A compressed fluid nozzle is provided in the at least one side wall to nozzle compressed fluid from the compressed fluid nozzle to force the substance on the sensing surface to leave from the opening. This design makes it possible to refresh in situ with good efficiency without involving additional mechanical parts, thus reducing the risk of sensing surface damage, such as scratch wear, in the presence of wear particles.

Abstract: A performance detection system for the rotating device and a performance detection method for the rotating device are disclosed. The system includes a passive detection device and a gateway device. The passive detection device converts vibration energy from the rotating device into electrical energy to supply power to the passive detection device. The passive detection device transmits a broadcast signal frame to a gateway device in a preset broadcast period when the electrical energy is greater than a preset electrical energy threshold. The gateway device receives the broadcast signal frame from the passive detection device and determines a performance state of the rotating device based on the broadcast signal frame.

Abstract: A method for assisting in the installation of wireless sensors. The method is performed by a computing device and may include presenting, on a display interface of the computing device, a graphical element of the wireless sensor. An orientation of the graphical element in a displayed scene on the display interface is consistent with an installation orientation of the wireless sensor in an actual scene. The method may include presenting, on the display interface, an indication of an installation status of the wireless sensor. The installation status includes the installation orientation being correct or incorrect. The method may include presenting, on the display interface, a second indication of an adjustment suggestion for the installation orientation of the wireless sensor while the indication indicates that the installation orientation is incorrect. The adjustment suggestion includes an orientation adjustment direction and an orientation adjustment angle for the wireless sensor.

Abstract: A method and apparatus for estimating an occurrence location of an event of interest, and computing devices. The method may include: determining a location determination delay time period based on a first time point at which the event of interest occurs and a second time point at which motion information is acquired earliest; acquiring pieces of motion information at sampling time points with a predetermined sampling interval, each piece of motion information includes a motion speed, a motion direction, and a location of the moving vehicle at a respective sampling time point; determining a motion change rate of the moving vehicle based on the pieces of motion information; and estimating the occurrence location of the event of interest based on the motion information at an ordinal first one sampling time point of the sampling time points, the motion change rate, and the location determination delay time period.

Abstract: A method and associated device for estimating revolutions of a bearing on an object. The method includes receiving a plurality of measurement data from a sensor. Each of the plurality of measurement data has a corresponding time stamp. The plurality of measurement data is measured by the sensor waking up based on a first time interval. During running of the object, the first time interval changes based on a running status of the object. The method includes determining a total travelled distance of the object based on the plurality of measurement data and determining a travelled distance offset of the bearing. The travelled distance offset is a distance that the object has travelled when the bearing is installed on the object. The method includes determining the revolutions of the bearing based on the determined total travelled distance of the object and the determined travelled distance offset of the bearing.

Abstract: A method and associated device for estimating revolutions of a bearing on an object is disclosed. The method includes receiving a plurality of measurement data from a plurality of sensors. Each of the plurality of measurement data has a corresponding time stamp. The method includes determining a total travelled distance of the object based on the plurality of measurement data and determining a travelled distance offset of the bearing. The travelled distance offset of the bearing is a distance that the object has travelled when the bearing is installed on the object. The method includes determining the revolutions of the bearing based on the determined total travelled distance of the object and the determined travelled distance offset of the bearing.

Abstract: A passive sensor device and a passive sensor system are disclosed, wherein the passive sensor device comprises a sensing control module configured to operatively perform a detection process on a device to be detected and generate a detection result; an energy harvesting module mounted on a main body of the device to be detected and configured to convert the harvested vibration energy from the device to be detected into alternating current energy; a power management module configured to receive the alternating current energy from the energy harvesting module, convert the alternating current energy to direct current energy, and supply power to the passive sensor device based on the direct current energy.

Abstract: A portable device and method for determining communication performance metrics are provided. The portable device communicates with the cloud and includes a control device and storage. The control device records and/or processes communication-related data for determining the corresponding metric. The control device acquires communication-related data of a predetermined communication performance metric based on the configuration information, and determines and records the predetermined communication performance metric of the to-be-tested cellular module based on the communication-related data, or records the communication-related data; and uploads the predetermined communication performance metric or the communication-related data to the cloud via the to-be-tested cellular module when the data is required and able to be uploaded to the cloud.

Abstract: Method, system, and programs for measuring user engagement with content items. In one example, a query is received. A set of content items related to the query is obtained. A presentation of at least one content item of the set of content items is provided on a user interface. A user activity related to the at least one content item is determined. An amount of time between a time at which the presentation of the at least one content item is provided on the user interface and a time at which the user activity occurred is determined. A score associated with the content item is determined based on the amount of time. Information related to user engagement with the set of content items is generated based on the score.

Abstract: Method, system, and programs for measuring user engagement with content items. In one example, a query is received. A set of content items related to the query is obtained. A presentation of at least one content item of the set of content items is provided on a user interface. A user activity related to the at least one content item is determined. An amount of time between a time at which the presentation of the at least one content item is provided on the user interface and a time at which the user activity occurred is determined. A score associated with the content item is determined based on the amount of time. Information related to user engagement with the set of content items is generated based on the score.

Abstract: A vehicle chassis health evaluation method and apparatus is disclosed. The method for health evaluation of vehicle chassis may include monitoring the vibration of at least one of the wheel end and the reducer by a vibration sensor. The vibration sensor is installed in the wheel end and/or the reducer. The method may further include, based on the monitored vibration of at least one of the wheel end and the reducer, performing the health evaluation of the vehicle chassis. The health evaluation method of the vehicle chassis of the present disclosure allows the real-time state of the vehicle chassis to be determined, even when the vehicle is driving, and critical safety accidents caused by the chassis can be avoided.

Abstract: A vehicle chassis health evaluation method and apparatus is disclosed. The method for health evaluation of vehicle chassis may include monitoring the vibration of at least one of the wheel end and the reducer by a vibration sensor. The vibration sensor is installed in the wheel end and/or the reducer. The method may include obtaining total mass information of the vehicle, based on the monitored vibration of at least one of the wheel end and the reducer and the total mass information of the vehicle to perform the health evaluation of the vehicle chassis. By using the health evaluation method of the vehicle chassis, the real-time state of the vehicle chassis can be provided even when the vehicle is driving, and critical safety accidents caused by the chassis can be avoided.

Abstract: Methods, systems, and computer programs are presented for displaying a customized news stream. One method includes an operation for identifying dwell times spent by users while accessing a first plurality of items, each item belonging to one media type from a plurality of media types (e.g., news articles, videos, slide shows, etc.). In addition, the method includes operations for determining statistical parameters for each media type based on the identified dwell times, and for detecting a news corpus having a second plurality of items. A priority for each item in the news corpus is determined based on the media type of the item, the corresponding statistical parameters for the media type of the item, and the profile of a user. The news stream is sent to the user for presentation on a display, the news stream being sorted based on the priority of the items in the news corpus.

Abstract: The present disclosure provides an installation device for installing a sensor to a component. The installation device includes a first and second clamps connected together for clamping onto the component. A first adjuster is movably assembled to the first and second clamps. A second adjuster is movably assembled to the first adjuster and includes an installing portion for installing the sensor. The first adjuster and the second adjuster can move along different adjusting directions to adjust the direction of the sensor. The sensor installation device has good adaptability and the installing position can be adjusted according to the actual needs. The installation reliability and connection rigidity can be ensured by various ways such as bolt fastening, fastener fixation or adhesion etc., and the vibration signal transmission path is improved. This makes the installation device especially suitable for installation of vibration sensors and ensures vibration sensors optimally collect vibration signals.

Abstract: A guide roller for a continuous casting machine includes a roller seat having bearings, a roller shaft mounted for rotation in the roller seat and at least one roller body mounted on the roller shaft and configured to support a billet. A passive optical sensor is mounted to the roller seat and configured to output optical signals, and an optical fiber extends from the passive optical sensor and is configured to convey the optical signals to a processor configured to determine one or more physical parameters of an installation position of the passive optical sensor based on the optical signals.

Abstract: The present disclosure provides a system for detecting the contamination condition of lubricating grease of a mechanical component. The system comprises a radio frequency signal generator, a sensor, a switch assembly and a radio frequency signal analyzer. The radio frequency signal generator generates a radio frequency signal with a frequency higher than 1.0 GHz. The sensor contacts lubricating grease to be sensed in the mechanical component. The switch assembly switches between a first mode, in which a radio frequency signal is transmitted through a first transmission path, thereby providing a first feedback signal for the radio frequency signal analyzer, and a second mode in which the radio frequency signal is transmitted through a second transmission path, thereby providing a second feedback signal for the radio frequency signal analyzer. The radio frequency signal analyzer analyzes the first and second feedback signals to detect the contamination condition of lubricating grease.