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.

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.

Abstract: The present invention relates to a static compliance performance testing device applied to an industrial robot, comprising a loading direction adjusting component and a loading force adjusting component, wherein the force applying end of the loading direction adjusting component is connected with an end mechanical interface of the industrial robot, and is configured to adjust a force bearing direction of the end mechanical interface. The loading force adjusting component comprises a lever, a first-stage weight and a second-stage weight, the lever is provided with a fixing part and is rotatable around the fixing part, the force bearing end of the loading direction adjusting component is connected with the lever, the first-stage weight is suspended on the lever, the second-stage weight is suspended on the lever and is movable along the lever, the weight of the first-stage weight is larger than the weight of the second-stage weight.

Abstract: A wall-mounted lamp with an integral hood-shell structure comprises a rear shell and a front shell. A drive control module and a light source module are provided between the rear shell and the front shell. The front shell includes a light-transmitting hood and a light-shading hood which are connected to each other and are of an integral structure. In the disclosure, the light-transmitting hood and the light-shading hood of the front shell are of an integral structure, and the front shell can be mounted on the front shell as a whole, without any waterproof structure provided between the light-shading hood and the light-transmitting hood.

Abstract: Disclosed is a structure for mounting a wall lamp, comprising a wall lamp body and a wall frame, wherein the wall lamp body is configured for hanging on the wall frame through a snap-fitting structure. With this structure, it is convenient to assemble and disassemble the wall lamp body, and the disassembly/assembly efficiency of the wall lamp can be improved.

Abstract: The present invention provides an anhydrous crystal of polymyxin B1 sulfate, polymyxin B2 sulfate or a mixture thereof and a preparation method thereof. The preparation method comprises using an organic solvent to precipitate a solid from a saturated solution of polymyxin B1 sulfate, polymyxin B2 sulfate or a mixture thereof, drying it under vacuum to obtain an anhydrous crystal of polymyxin B1 sulfate, polymyxin B2 sulfate or a mixture thereof.

Abstract: Embodiments of application relate to the field of communications technologies, and in particular, to a detection apparatus and method for quickly locating a wire fault of a serial bus and finding a cause. The apparatus is connected to a serial bus between a primary device and a secondary device, the serial bus includes a first bus and a second bus, and the apparatus includes a voltage divider module, a voltage follower module, a forward bias module, and a control module that are sequentially connected. The voltage divider module is configured to reduce a voltage of the first bus and a voltage of the second bus. The voltage follower module is configured to enhance an electrical signal of the first bus and an electrical signal of the second bus. The forward bias module is configured to forward bias the voltage of the first bus and the voltage of the second bus.

Abstract: A communications system includes a site manager, a management node, and a wireless sensor. The wireless sensor is configured to send a connection request to the management node in a wakeup mode. The management node is configured to query, based on the connection request, whether the management node locally caches a first message in advance. The first message is received by the management node from the site manager responsive to the wireless sensor being in a sleep mode. The management node is further configured to send a response to the wireless sensor based on a result of the query. The response includes the first message responsive to the result of the query being that the management node locally caches the first message in advance. The wireless sensor is further configured to switch from the wakeup mode to the sleep mode after receiving the response.

Abstract: The present invention relates to a static compliance performance testing device applied to an industrial robot, comprising a loading direction adjusting component and a loading force adjusting component, wherein the force applying end of the loading direction adjusting component is connected with an end mechanical interface of the industrial robot, and is configured to adjust a force bearing direction of the end mechanical interface. The loading force adjusting component comprises a lever, a first-stage weight and a second-stage weight, the lever is provided with a fixing part and is rotatable around the fixing part, the force bearing end of the loading direction adjusting component is connected with the lever, the first-stage weight is suspended on the lever, the second-stage weight is suspended on the lever and is movable along the lever, the weight of the first-stage weight is larger than the weight of the second-stage weight.

Abstract: A method for fabricating a flexible LED light string includes steps: 1: core strip extrusion molding; 2. LED light bead hole punching and cutting mark labelling; 3. inserting the flexible LED PCB into the core strip; 4. extrusion molding for light string sheath, i.e. diffusing strip. With the method, the core strip can has a variety of cross sectional shapes according to design needs. In the same way, the sheath can has a variety of cross sectional shapes according to design needs, and has a variety of combinations of materials and colors through multiple-color extrusion molding, for example, the sheath mixed with colored decorative strips, and non-transparent partially.