Abstract: A pump body assembly and a compressor are provided. The pump body includes: a spindle, wherein the spindle has a sliding vane chute, a back pressure oil cavity being at least a part of an oil passage is located at a tail end of the sliding vane chute, an oil outlet of the back pressure oil cavity is located at the top of the back pressure oil cavity, and a position of the oil inlet of the back pressure oil cavity is lower than that of an oil outlet of the back pressure oil cavity such that a lubrication medium enters the back pressure oil cavity through the oil inlet of the back pressure oil cavity and fills up the back pressure oil cavity and flows out from the top of the back pressure oil cavity.

Abstract: The disclosure discloses a pump body and a compressor with the pump body. The pump body includes: a flange structure; a bearing, the bearing being provided with an inner ring and an outer ring, the inner ring being rotatably disposed on the flange structure, and an end face of the inner ring being abutted against a contact face of the flange structure; and an oil guide channel provided inside a side wall of the inner ring, or inside the flange structure, or the side wall of the inner ring and inside the flange structure, an outlet of the oil guide channel being positioned between the end face of the inner ring and the contact face of the flange structure, so as to introduce lubricating oil between the end face of the inner ring and the contact face of the flange structure.

Abstract: The present disclosure provides a pump body assembly, a heat exchange apparatus, a fluid machine and an operating method thereof. The pump body assembly includes a piston, a shaft, a piston sheath, and a cylinder. The shaft drives the piston to rotate and reciprocate within the piston sheath while rotating. The piston sheath is located in the cylinder, and a compression chamber is defined between an outer circumferential wall of the piston and an inner wall of the cylinder. A pressure relief recess is defined in the outer circumferential wall of the piston or the inner wall of the cylinder at a position corresponding to the compression chamber.

Abstract: A binocular image-based model training method and apparatus, and a data processing device are provided. An image matching model includes a teacher model and a student model. In the method, two groups of sample images acquired at different time points by a binocular image acquisition apparatus are first obtained; then, for any two sample images in the two groups of sample images, optical flow estimation is performed according to a preset geometric constraint between the two sample images by means of the teacher model, so as to obtain a more accurate high-confidence optical flow estimation result, the preset geometric constraint being a binocular image-based geometric constraint; and finally, machine learning training of image element matching is performed on the student model by using the two sample image, with the high-confidence optical flow estimation result taken as labeling information.

Abstract: Provided are a monocular image-based model training method and apparatus, and a data processing device. The method includes: first obtaining a first training image and a second training image acquired at different time points by a monocular image acquisition apparatus; then obtaining a first optical flow prediction result from the first training image to the second training image according to a photometric loss between the first training image and the second training image; and taking the first optical flow prediction result as an agent label, and performing optical flow prediction training by using the first training image and the second training image.

Abstract: A detection apparatus determines whether a recording layer of an optical disc is at a focal point of an objective lens. The detection apparatus includes an objective lens, a beam splitter, a reflector, a detector, and a servo controller. The reflector and the detector are disposed opposite to each other on two sides of an optical axis of the objective lens, and a normal line of the reflector is perpendicular to the optical axis. The beam splitter is disposed between the reflector and the detector and is located on the optical axis. The servo controller is connected to the detector.

Abstract: The disclosure discloses a compressor pump body, a compressor and an air conditioner. The compressor pump body includes a sliding vane, a first flange and a second flange. The sliding vane includes a main body. The main body is provided with a first surface and a second surface which are arranged opposite to each other. The first surface abuts against the first flange, and the second surface abuts against the second flange. The first surface and/or the second surface are/is provided with an enlargement portion. An exhaust port is formed in the first flange and/or the second flange. When the sliding vane rotates to sweep the exhaust port, the enlargement portion can prevent two sides of the sliding vane in the rotation direction from communicating by means of the exhaust port.

Abstract: A system monitors an application and automatically models, correlates, and presents insights. The monitoring is performed without requiring administrators to manually identify what portions of the application should be monitored. The modeling and correlating are performed using a knowledge graph and automated modeling system that identifies system entities, builds the knowledge graph, and reports the most crucial insights, determined automatically, using a dashboard that automatically reports on the most relevant system data and status.

Abstract: A system that automatically monitors an application without requiring administrators to manually identify what portions of the application should be monitored. The present system is flexible in that it can be deployed in several different environments having different operating parameters and nomenclature. The present application is able to automatically monitor applications in the different environments, and convert data, metric, and event nomenclature of the different environments to a universal nomenclature. A system graph is then created from the nodes and metrics of each environment application that make up a client system. The system graph, and the properties of entities within the graph, can be displayed through an interface to a user.

Abstract: Embodiments of this application provide a data processing method, device, filming system, and computer storage medium. The data processing method includes: obtaining a target background resource to be displayed, where the target background resource includes an image resource and/or a video resource; performing image quality optimization on an image in the background resource according to reference information, where the reference information is used for indicating a situation in a background resource display process; displaying the background resource, to use the image in the background resource as a background for filming. During filming, a terminal device performs image quality optimization on an image in a background resource and then displays a background. This process does not require post matting and synthesis and reduces production costs and time costs. Moreover, on-site filming can ensure that the background matches with lighting effects of a real scene, thereby achieving a better film result.

Abstract: The disclosure provides a thermal runaway detection circuit and method, and relates to batteries. The thermal runaway detection circuit includes: a sensing module including a sensing cable; a detection module connected to the sensing cable and including at least one set of voltage dividing resistors; a processing module connected to the detection module, wherein the processing module is configured to obtain thermal runaway detection data, and determine whether thermal runaway occurs in the battery pack based on the thermal runaway detection data, wherein the thermal runaway detection data includes battery pack data and sampled data collected from sampling points, and the sampling points are disposed between the two connected voltage dividing resistor sets. The technical solutions in the present disclosure can improve safety of the battery pack.

Abstract: The disclosure discloses a slide vane, a pump body assembly, a compressor and an air conditioner having the same. The pump body assembly includes a cylinder assembly, a flange portion, a rotating shaft and the slide vane. The flange portion is connected to the cylinder assembly, a working cavity is formed between the flange portion and the cylinder assembly, and an avoidance portion is provided on a surface, located in the working cavity, of the flange portion. A limiting structure is provided in an accommodation portion. The limiting structure is provided with an avoidance position in the accommodation portion, and at least part of the limiting structure is provided with a limiting position protruded out of a surface of the accommodation portion. Such a configuration avoids friction occurring between the head of the slide vane and the cavity wall of the working cavity.

Abstract: The present disclosure provides a battery management system and a communication method. The method includes: determining, by a main BMU, from a plurality of managed units a fault unit that communicates abnormally with the main BMU, and transmitting, by the main BMU, to a backup BMU a fault frequency at which the fault unit communicates abnormally with the main BMU; selecting, by the backup BMU, from the managed units a managed unit that communicates normally with the backup BMU and the fault unit as a target unit; transmitting, by the backup BMU, frequency-conversion information to the fault unit through the target unit based on the fault frequency; converting, by the fault unit, its frequency to a frequency; transmitting the frequency to the main BMU if the backup BMU communicates normally with the fault unit using the frequency; and communicating, by the main BMU, with the fault unit using the frequency.

Abstract: A measurement device includes: a host computer and a current source, wherein the host computer is configured to: control, when ambient temperature of a current detection device is at a preset temperature within an operation temperature range of a shunt of the current detection device, the current source to output a current with a preset current value to the current detection device; receive a calibrated current value sent by the current detection device; calculate a measurement error of the current detection device according to the preset current value and the calibrated current value; and instruct, when the measurement error is less than a preset current error, the current detection device to use the predetermined current calibration coefficient as a current calibration coefficient.

Abstract: A method for conducting wellsite activities includes receiving measured sensor data collected by one or more sensors in a wellsite construction rig, determining a data quality of the measured sensor data based on a plurality of data quality dimensions, predicting predicted sensor data using a model, comparing the measured sensor data with the predicted sensor data, determining an uncertainty of the measured sensor data based at least in part on the data quality and the comparison, and selecting one or more workflows for implementation using the one or more sensors, the wellsite construction rig, or both.

Abstract: An electrical connector includes an insulating body having a mating surface. An insertion slot is concavely provided on the mating surface. Two side walls are located at two sides of the insertion slot. A slot bottom surface is formed on a concave direction of the insertion slot. One of the side walls is provided with aground accommodating slot and a signal accommodating slot. A signal terminal and a ground terminal are provided on the one of the side walls. The signal terminal is accommodated in the signal accommodating slot. The ground terminal is accommodated in the ground accommodating slot. A side of the insulating plug member has a first portion corresponding to the signal accommodating slot and a second portion corresponding to the ground accommodating slot. The first portion is accommodated in the signal accommodating slot and is provided closer to the mating surface than the slot bottom surface.

Abstract: An electrical connector includes: a first main body, having a first wall surface and a second wall surface; a second main body, mounted on the first main body, and having a third wall surface and a fourth wall surface. A first channel is formed between the first wall surface and the third wall surface. A second channel is formed between the second wall surface and the fourth wall surface and is communicated with the first channel. A signal terminal has a fixing portion accommodated in the first channel and fixed by at least one of the first main body and the second main body, and an elastic arm formed by extending from the fixing portion and accommodated in the second channel. A contact portion is provided on the elastic arm and is exposed to the first main body in a left-right direction to be in contact with the mating member.

Abstract: An electrical connector includes a base and a row of conductive terminals, including at least one pair of differential signal terminals and multiple ground terminals. Each conductive terminal is in contact with a mating component. The conductive terminals include a terminal group having two ground terminals and one pair of differential signal terminals located between the two ground terminals. In the terminal group, a pitch between the pair of differential signal terminals is defined as a first pitch, a pitch between each differential signal terminal and its adjacent ground terminal is defined as a second pitch, and the first pitch is less than the second pitch. A pitch between another ground terminal adjacent to the terminal group and an adjacent ground terminal in the terminal group is defined as a third pitch, which is greater than the second pitch. The electrical connector and the mating component form a connector assembly.

Abstract: Disclosed by the present invention are a nitrogen-containing heterocyclic compound, and a composition thereof, a preparation method therefor and an application thereof. The structure of the nitrogen-containing heterocyclic compound according to the present invention is shown in Formula I. The nitrogen-containing heterocyclic compound according to the present invention or a pharmaceutically acceptable salt thereof has better inhibitory activity on p38 protein kinase and/or higher bioavailability. In addition, the preparation method is simple.

Abstract: The present disclosure relates to an oil line structure of a compressor and compressor, wherein the oil line structure of a compressor including: a spindle, an upper flange and a rolling bearing, wherein an interior of the rolling bearing encloses a cylinder cavity for performing compression, and the rolling bearing comprises a rolling body; wherein the spindle is internally provided with a spindle oil hole, and the upper flange is provided with an upper oil groove which is in communication with the spindle oil hole to guide an oil into the rolling body so as to lubricate the same. In this way, the heat generated by friction of the rolling body is discharged in time, so as to prevent a temperature rise in the bearing and reduce the wear, thereby improving the energy efficiency value of the compressor and ensuring normal operation of the compressor.