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 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 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 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: A multifunctional aroma-diffuser, comprising a housing, an lighting auxiliary component, a lamp, an aromatherapy component and a control panel; a storage cavity and a liquid storage cavity are formed in the housing, and a light transmission opening and a mist discharge port are also provided on the housing; the lighting auxiliary components comprise a projection lens, a refracting lens and a motor; the projection lens is arranged at the light transmission opening, the refracting lens is arranged in the storage cavity and corresponds to the projection lens; a motor is fixed in the storage cavity and is configured to drive the refracting lens to rotate; the lamp is arranged in the storage cavity and its light passes through the refracting lens and the projection lens in sequence; the aromatherapy component is arranged in the housing and configured to atomize the essential oil mixture in the liquid storage cavity.

Abstract: An atomizing aroma diffuser, comprising a housing, an oil guiding member, an atomizing sheet, and an essential oil bottle; a mounting cavity is provided inside the housing, and the housing is provided with an oil inlet and a mist outlet for connecting the mounting cavity and ambient; the oil guiding member is arranged in the mounting cavity, and an oil storage channel and a bayonet are provided inside of the oil guiding member; the bayonet is arranged at a first end of the oil storage channel and connected to the oil storage channel and the oil inlet; a second end of the oil storage channel is correspondingly connected to the mist outlet; the atomizing sheet is arranged at the mist outlet and configured to block the oil storage channel; a mouth of the essential oil bottle extends into the oil inlet and is detachably connected to the bayonet.

Abstract: Provided are a data search processing method and apparatus, an electronic device, and a storage medium. The method includes: receiving a search request that includes an entity keyword attributing to a target category; acquiring dimension information on the target category in at least two dimensions and a multimedia resource set of the entity keyword in each of the at least two dimensions, in which the at least two dimensions includes an entity making dimension and an entity site dimension; and displaying a search result page, in which the search result page includes a first region and a second region, the dimension information in the at least two dimensions is displayed in the first region, the second region including a plurality of predetermined sub-regions, and the multimedia resource set in corresponding one of the at least two dimensions to each predetermined sub-region is displayed in the predetermined sub-region.

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 method of estimating a speed of an object in real-time includes acquiring from an acceleration sensor mounted on the object a first original acceleration signal indicative of an acceleration of the object in a direction parallel to a travelling direction of the object, filtering the first original acceleration signal to remove noise to produce a first filtered acceleration signal, down-sampling the first filtered acceleration signal to obtain a first optimized acceleration signal, and calculating an estimated speed value of the object along the direction parallel to the travelling direction of the object based on the first optimized acceleration signal.

Abstract: A rotatable humidification atomizer comprises a base, on which a water tank is arranged. A downward water outlet is arranged at the bottom of the water tank, and an atomizer is fixedly arranged at the bottom. A control component is arranged in the middle of the base, and the atomizer is electrically coupled with the control component. The humidification atomizer can be rotated by arranging a rotating component between the base and the water tank. In use, the water tank cover needs to be removed as a whole when filling and changing water. The water tank on the base can be kept stationary, so that it is easy to use; the humidification atomizer sprays atomized water upward. Due to the vertical integrated design, the humidification atomizer is small and compact.

Abstract: A rotatable wax-melting fragrance lamp comprises a base, a housing, a rotating component, a heating component, a light-emitting component, a control PCB, and a heat-conducting plate. By arranging the rotating component, the whole product can present a rotating effect, which can make the lamp have better lighting effect and decorative effect, and enables the heating component to melt and volatilize wax more uniformly; the heat-conducting plate is detachable, which is convenient for cleaning and replacing the fragrant wax; the PTC heating element or ceramic heating resistor is used in place of open fire heater. The heating of the PTC heating element or the ceramic heating resistor is to realize the heating of the fragrant wax, so that the fragrant wax produces a pleasant fragrance, which spreads around the immediate vicinity. The PTC heating element or ceramic heating resistor requires lower heating power consumption, while the power control is very sensitive.

Abstract: A load-energy efficiency evaluation and monitoring method includes an actual part processing number and a theoretical part processing number of the numerical control machine tool within an evaluation period are obtained to calculate a loading performance of the numerical control machine tool. A waste time value and a standby power value of the numerical control machine tool are obtained to calculate a waste energy value of the numerical control machine tool. A single-part actual processing energy consumption is obtained and used, together with a single-part ideal processing energy consumption, to calculate the load-energy efficiency of the numerical control machine tool. A relationship model between the load-energy efficiency and the loading performance of the numerical control machine tool is built based on the obtained model of the load-energy efficiency of the numerical control machine tool and the obtained model of the loading performance of the numerical control machine tool.

Abstract: A fluororubber wax-melting tray and a cleaning method thereof are disclosed. The fluororubber material of the disclosure is a synthetic polymer elastomer with high temperature resistance, corrosion resistance and low wear resistance. The fluororubber wax-melting tray has the same wax melting effect as the existing ceramic or metal wax melting trays. The shape of the wax melting tray is changed by the external force exerted by pushing the bottom of the fluororubber wax melting tray lightly. When both the external force tending to change the shape of the wax-melting tray and the adsorption force between the wax molecules are greater than the adsorption forces between the fragrance wax and the wax melting tray, the absorption force between a wax piece and the wax melting tray is released, and the whole solidified wax piece can be completely peeled off.

Abstract: A load-energy efficiency evaluation and monitoring method includes an actual part processing number and a theoretical part processing number of the numerical control machine tool within an evaluation period are obtained to calculate a loading performance of the numerical control machine tool. A waste time value and a standby power value of the numerical control machine tool are obtained to calculate a waste energy value of the numerical control machine tool. A single-part actual processing energy consumption is obtained and used, together with a single-part ideal processing energy consumption, to calculate the load-energy efficiency of the numerical control machine tool. A relationship model between the load-energy efficiency and the loading performance of the numerical control machine tool is built based on the obtained model of the load-energy efficiency of the numerical control machine tool and the obtained model of the loading performance of the numerical control machine tool.

Abstract: The present invention is applicable to the technical field of decoration tools and provides a chisel. The chisel comprises a housing; a first guide device arranged in the housing; and a cam mechanism disposed in the housing, wherein the cam mechanism comprises a first end cam and a second end cam which are fixedly connected together and have cam end faces opposite to each other, a connecting device connected with a power device is arranged on one side, opposite to the cam end face, of the first end cam, and the second end cam is a hollow cam; a hollow portion capable of passing through the second end cam, wherein the hollow portion is in contact with and matches the cam end faces of the two end cams, to drive a driven member for movement of a chisel body.

Abstract: The utility model discloses a novel lamp holder which comprises a lamp holder for installing a lamp and a base; the lamp holder is fixed to the base, wherein a wire-fixing device is integrally formed at the bottom of the base; the wire-fixing device is composed of a wing-shaped support and a wire-clamping plate; the wing-shaped support is a winding support which is formed by suspended extension towards the left side and the right side of the base from the edge of one side of the bottom of the base; the two sides of the front end of the wire-clamping plate are provided with wire-clamping grooves respectively; and the middle part of the wire-clamping plate is provided with a wire-clamping hole. The novel lamp holder is simple in structure, reduces product parts, lowers production cost and is convenient to dismantle and operate, and a process is simplified.

Abstract: The utility model discloses a novel crystal salt aroma stove which comprises an aroma stove body, a base and a built-in circuit control system. There is the aroma stove body, a cover, an aromatherapy oil placing groove, a protective screen, the base, a threading hole, a glass cover, a crystal salt placing groove, a heating bulb and a glass cover installing groove. The built-in circuit control system is arranged in the base of the aroma stove body. A power supply module and a light control module are arranged on the built-in circuit control system. The novel crystal salt aroma stove is reasonable in design, attractive in appearance, simple and elegant, has an effect of air purification through crystal salt besides a function of aromatherapy and air beautification which an existing aroma stove can only perform, and enables users to breathe pure air, experience aesthetic sentiments, relax tense nerves and return to simple nature.

Abstract: The utility model discloses a novel lamp holder which comprises a lamp holder for installing a lamp and a base; the lamp holder is fixed to the base, wherein a wire-fixing device is integrally formed at the bottom of the base; the wire-fixing device is composed of a wing-shaped support and a wire-clamping plate; the wing-shaped support is a winding support which is formed by suspended extension towards the left side and the right side of the base from the edge of one side of the bottom of the base; the two sides of the front end of the wire-clamping plate are provided with wire-clamping grooves respectively; and the middle part of the wire-clamping plate is provided with a wire-clamping hole. The novel lamp holder is simple in structure, reduces product parts, lowers production cost and is convenient to dismantle and operate, and a process is simplified.