Abstract: A sealing ring positioning component adapted to be fitted on an outer housing of a connector to position a sealing ring on the outer housing comprises a peripheral wall and a pushing protrusion formed on an inner peripheral surface of the peripheral wall. The pushing protrusion is adapted to be pushed on the outer sides of two half shells of a shielding shell of the connector such that splicing edges of the two half shells of the shielding shell are in contact with each other.

Abstract: The disclosure provides a display apparatus and a recording method. The display apparatus can obtain a scheduled recording task queue in response to an instruction for adding a scheduled recording task; query recording time information of one or more adjacent scheduled recording tasks in the scheduled recording task queue, wherein the recording time information comprises recording start time, recording end time, pre-recording time and post-recording time; then set task execution time and/or task completion time of the scheduled recording task according to the recording time information of the one or more adjacent scheduled recording tasks; and finally, execute the scheduled recording task according to the task execution time and/or the task completion time.

Abstract: A motor power source regulation circuit, a control method and an electronic device are provided. The motor power source regulation circuit includes a power factor correction circuit, an isolation circuit, a first power source conversion circuit, a second power source conversion circuit and a control circuit. The isolation circuit includes a first switch sub-circuit and an isolation transformer. The power factor correction circuit regulates an AC input signal to a first DC signal. The first switch sub-circuit converts the first DC signal to a first AC signal. The isolation transformer converts the first AC signal to two or more second AC signals. The first power source conversion circuit converts the second AC signal to a DC drive signal and outputs it to a DC motor. The second power source conversion circuit converts the second AC signal to an AC drive signal and outputs it to an AC motor.

Abstract: A muti-motor integrated power circuit includes: a power input conversion circuit configured to convert a power input signal from a standby power source to a busbar power signal; a power factor correction circuit configured to convert and superpose an AC input signal of the AC power source with the busbar power signal; a first isolation circuit configured to convert the busbar power signal to an isolation output signal; a first switch sub-circuit configured to convert the busbar power signal to a first AC signal; an isolation transformer configured to convert the first AC signal to at least two second AC signals; a first power conversion circuit or an isolation transformer configured to convert the isolation output signal or the second AC signal to a DC drive signal; and a second power conversion circuit configured to convert the isolation output signal or the second AC signal to an AC drive signal.

Abstract: The connector includes an outer housing having walls. The connector further includes an inner housing arranged in the outer housing and having mounting slots formed on both sides of the inner housing. The connector further includes two rows of first terminals arranged on two sides of the inner housing. The connector further includes two pairs of second terminals, each first terminal includes a first fixing portion, a first contact arm, and a first elastic structure. The connector further includes two pairs of second terminals having a second fixing portion, a second contact arm, and a second elastic structure.

Abstract: Disclosed are a parallel accelerated test method and apparatus that separately applies multiple sensitive stresses to multiple components. Sensitive stress types of different product components are determined respectively, and accelerated test stress values of the different product components are determined respectively based on the sensitive stress types. The overall product acceleration coefficient is determined, the accelerated test stress values of different product components are corrected based on the overall product acceleration coefficient, and the multi-box coordinated deployment scheme is determined based on the sensitive stress types of different product components and the corrected stress values in accelerated test. Based on an accelerated test confidence level and product failure count threshold, a target accelerated test scheme is determined from candidate accelerated test schemes.

Abstract: Disclosed are a parallel accelerated test method and apparatus that separately applies multiple sensitive stresses to multiple components. Sensitive stress types of different product components are determined respectively, and accelerated test stress values of the different product components are determined respectively based on the sensitive stress types. The overall product acceleration coefficient is determined, the accelerated test stress values of different product components are corrected based on the overall product acceleration coefficient, and the multi-box coordinated deployment scheme is determined based on the sensitive stress types of different product components and the corrected stress values in accelerated test. Based on an accelerated test confidence level and product failure count threshold, a target accelerated test scheme is determined from candidate accelerated test schemes.

Abstract: The present disclosure relates to a product testing method and apparatus integrating accelerated life test and accelerated degradation test, computer device, storage medium and computer program product. The method includes, performing failure mode analysis on components of a product to be evaluated, classifying the components into sudden failure components and degradation failure components, performing accelerated life tests on the sudden failure components to determine a first cumulative failure probability function of each of the sudden failure components, performing accelerated degradation tests on the degradation failure components to determine a second cumulative failure probability function of each of the degradation failure components, and determining a reliability of the product to be evaluated based on the first cumulative failure probability function and the second cumulative failure probability function.

Abstract: The application discloses a power supply system and an electronic device. The power supply system includes a rectifying circuit module, a DC connecting bus module and a voltage output circuit module. The rectifying circuit module is connected with an external power supply to correct and rectify the AC current of the external power supply to form a DC current; the DC connecting bus module is connected with the rectifying circuit module to store the DC current and output a DC voltage; the voltage output circuit module is connected with the DC connecting bus module to convert the DC voltage of the DC connecting bus module to at least any of a three-phase AC voltage, a single-phase AC voltage and a target DC voltage and output it.

Abstract: The disclosure provides a display apparatus and a recording method. The display apparatus can obtain a scheduled recording task queue in response to an instruction for adding a scheduled recording task; query recording time information of one or more adjacent scheduled recording tasks in the scheduled recording task queue, wherein the recording time information comprises recording start time, recording end time, pre-recording time and post-recording time; then set task execution time and/or task completion time of the scheduled recording task according to the recording time information of the one or more adjacent scheduled recording tasks; and finally, execute the scheduled recording task according to the task execution time and/or the task completion time.

Abstract: Provided are a system and a method for impact testing and monitoring of a high-energy flexible net. The system includes a vertical impact testing unit, a slope impact testing unit, an impact simulation unit, and an impact monitoring unit. The vertical impact testing unit includes a vertically positioned gravity wall. The slope impact testing unit includes a wall slope positioned perpendicularly to a second side of the gravity wall. A first side of the gravity wall and a slope surface of the wall slope are securely provided with a flexible net, respectively. The impact simulation unit includes an impact assembly and a lifting assembly. The impact monitoring unit is configured to monitor a deformation result and an internal force change result of the flexible net.

Abstract: The disclosed are a deflection calibration apparatus and method for a laser type high-speed deflection tester. The apparatus comprises rigid supports, rotating discs, driving systems and a deflection calibration unit; the rotating discs are mounted on the rigid supports and driven by the driving systems to rotate, and upper surfaces of the rotating discs are processed into inclined planes having a slope in the circumferential direction; the deflection calibration unit is used for calibrating a laser type high-speed deflection tester according to measured and theoretical deflection values; laser emitted by a Laser-Doppler vibrometer is incident on the upper surfaces of the rotating discs to obtain the measured deflection value; the deflection calibration unit calculates the theoretical deflection value according to the inclination angle and the rotational angular velocity of each rotating disc and the distance between a laser incident point and the gyration center of each rotating disc.

Abstract: The disclosed are a deflection calibration apparatus and method for a laser type high-speed deflection tester. The apparatus comprises rigid supports, rotating discs, driving systems and a deflection calibration unit; the rotating discs are mounted on the rigid supports and driven by the driving systems to rotate, and upper surfaces of the rotating discs are processed into inclined planes having a slope in the circumferential direction; the deflection calibration unit is used for calibrating a laser type high-speed deflection tester according to measured and theoretical deflection values; laser emitted by a Laser-Doppler vibrometer is incident on the upper surfaces of the rotating discs to obtain the measured deflection value; the deflection calibration unit calculates the theoretical deflection value according to the inclination angle and the rotational angular velocity of each rotating disc and the distance between a laser incident point and the gyration center of each rotating disc.

Abstract: Disclosed are a syringe and a needle hub having a protective cover. The needle hub having a protective cover includes a needle hub body and a protective cover that are integrally formed by means of injection molding. The needle hub body is used for inserting and fixing a needle tube. The protective cover is used for flipping at an angle at which the opening faces the needle hub body and the needle tube, and covering the needle hub body and the needle tube. The root of the protective cover is locked to the peripheral side of the needle hub body when the protective cover is flipped and covers the needle hub body.

Abstract: A sealing ring positioning component adapted to be fitted on an outer housing of a connector to position a sealing ring on the outer housing comprises a peripheral wall and a pushing protrusion formed on an inner peripheral surface of the peripheral wall. The pushing protrusion is adapted to be pushed on the outer sides of two half shells of a shielding shell of the connector such that splicing edges of the two half shells of the shielding shell are in contact with each other.

Abstract: A pixel circuit, display panel, and a display apparatus are provided in the disclosure. The pixel circuit includes a light-emitting unit and a drive transistor. The light-emitting unit is electrically coupled with a second power supply voltage terminal. The drive transistor is configured to drive the light-emitting unit to emit light. The light-emitting control sub-circuit is configured to control the light-emitting unit to emit light in response to a light-emitting control signal. The first reset sub-circuit is configured to write a reference voltage written at the reference voltage terminal into the gate of the drive transistor and a first terminal of the energy storage element in respond to a first reset signal. The switch sub-circuit is configured to change a gate voltage of the drive transistor. The second reset sub-circuit is configured to respond to the first reset signal.

Abstract: An industrial robot motion accuracy compensation method includes: establishing a motion parameter database, wherein the motion parameter database includes a plurality of different reference operating conditions and a motion parameter of the industrial robot corresponding to each reference operating condition, and each reference operating condition is formed by combining each element in each set in a total set of operation conditions; acquiring a current operating condition of the industrial robot; determining whether there is a reference operating condition matched with the current operating condition in the motion parameter database; if yes, taking a motion parameter corresponding to the matched reference operating condition as a motion parameter corresponding to the current operating condition; if no, performing an interpolation on a motion parameter corresponding to the current operating condition, and taking an interpolation result as the motion parameter corresponding to the current operating condition.

Abstract: An industrial robot motion accuracy compensation method includes: establishing a motion parameter database, wherein the motion parameter database includes a plurality of different reference operating conditions and a motion parameter of the industrial robot corresponding to each reference operating condition, and each reference operating condition is formed by combining each element in each set in a total set of operation conditions; acquiring a current operating condition of the industrial robot; determining whether there is a reference operating condition matched with the current operating condition in the motion parameter database; if yes, taking a motion parameter corresponding to the matched reference operating condition as a motion parameter corresponding to the current operating condition; if no, performing an interpolation on a motion parameter corresponding to the current operating condition, and taking an interpolation result as the motion parameter corresponding to the current operating condition.

Abstract: A predictive maintenance system and method for intelligent manufacturing equipment is provided. The predictive maintenance system includes a first-stage predictive maintenance module, a second-stage predictive maintenance module, and a maintenance decision module. The first-stage predictive maintenance module includes an acquisition module, a human-computer interaction module, a calculation module, and a storage module. The second-stage predictive maintenance module includes a communication module, a setting module, and a prediction module. The maintenance decision module is configured to receive a first-stage remaining service life calculated by the first-stage predictive maintenance module and a second-stage remaining service life predicted by the second-stage predictive maintenance module, and determine a predictive maintenance strategy of the intelligent manufacturing equipment according to the first-stage remaining service life and the second-stage remaining service life.

Abstract: The present disclosure discloses a monitoring device for internal deformation and fine particle loss of a railway subgrade, relating to the field of monitoring devices. The monitoring device includes an internal damage monitoring device arranged in a subgrade ballast layer. The internal damage monitoring device is connected to a resistance acquisition instrument through a wire. The resistance acquisition instrument is in wireless connection with a resistance signal receiver. The monitoring device for internal deformation and fine particle loss of a railway subgrade provided by the present disclosure can remotely realize real-time continuous monitoring of the deformation and fine particle loss inside the railway subgrade under a rail transit load, is economical and convenient, and has high practice value.