Patents
Literature
Patsnap Copilot is an intelligent assistant for R&D personnel, combined with Patent DNA, to facilitate innovative research.
Patsnap Copilot

108results about How to "Guaranteed simultaneity" patented technology

Live-broadcasting room video stream synthesis method and apparatus, and terminal equipment

The invention relates to the field of network live broadcasting, and specifically relates to a live-broadcasting room video stream synthesis method and apparatus, and terminal equipment. The method includes steps: outputting pre-protocol information including live-broadcasting room feature information and anchor identity information in response to an operation instruction for turning on multi-source live broadcasting by an anchor user; configuring an anchor user terminal as a server terminal, and receiving a connection request initiated by a second terminal according to the pre-protocol information; receiving a second video stream acquired by the second terminal in response to the connection request after it is confirmed that the anchor user is connected with at least one second terminal; synthesizing a first video stream and the second video stream acquired in a local manner as a third video stream, and uploading the third video stream to a server so that the server pushes the third video stream to each user in the live-broadcasting room. According to the method and apparatus, and the equipment, the anchor terminal is configured as the server terminal, the video stream pushed to the live-broadcasting room is synthesized, the occupation of the bandwidth is reduced, the pressure of the server of a live-broadcasting platform is reduced, and the playing front-end of live-broadcasting videos is liberated.
Owner:GUANGZHOU HUADUO NETWORK TECH

Impervious material permeation deformation test apparatus for refuse landfill pad

The invention discloses a device for testing the penetration and deformation of an impervious material of a gasket of a landfill site. The device comprises a pressurization device, a data control device, a testing vessel and a data processing device; the testing vessel consists of two hollow hemispheres with wing edges; the impervious material of the gasket is arranged between two hollow hemispheres; and the testing device measures pressure at two sides of geomembrane to obtain the pressure difference, provides parameters for the deformation of the geomembrane under certain pressure and can establish a pressure-deformation quantity relation. The testing device has the functions of measuring the osmotic coefficient and the deformation of the impervious material of the landfill site and also has the function of measuring the osmotic coefficients under different pressures. Data acquisition of the testing device ensures the simultaneity of the data acquisition to allow the measured osmotic coefficient to be more accurate. The osmotic coefficient measured by the testing device can be directly read and also establish relations between the pressure and the osmotic coefficient and between the pressure and the deformation quantity; therefore, the device provides more reliable evidence for the engineering application and the estimation of imperviousness of the geomembrane.
Owner:INST OF ROCK AND SOIL MECHANICS - CHINESE ACAD OF SCI

Double-liquid capillary micro-flow control valve in micro-flow control chip, and manufacturing method thereof

The invention relates to a double-liquid capillary micro-flow control valve in a micro-flow control chip, and a manufacturing method thereof, in particular to a capillary micro-flow control mechanism which is used for the micro-flow control chip and can realize sample injection of two liquids at the same time, aiming at solving the technical problem that the sample injection of the two trace liquids with different medium affinity properties can be difficultly realized in the existing micro-flow control technology. The double-liquid capillary micro-flow control valve is provided with a first branch flow groove, a second branch flow groove and an output groove which have equal cross section width; the cross section width of an air duct groove is less than that of the first branch flow groove, the second branch flow groove and the output groove; the depth of the second branch flow groove is equal to that of the output groove, and the depth of the first branch flow groove is less than that of the second branch flow groove; the depths of the second branch flow groove and the output groove are less than that of the air duct groove; the ends of the first branch flow groove and the second branch flow groove are communicated with an input end of the output groove; and the end of the air duct groove is communicated in front of the end of the second branch flow groove. The invention is applicable to the structure of a device which can lead the sample injection of high-affinity liquid to be carried out at the same time.
Owner:CHANGCHUN INST OF OPTICS FINE MECHANICS & PHYSICS CHINESE ACAD OF SCI

Automatic tooth aligning tool fixture

The invention relates to tool fixtures, in particular to an automatic tooth aligning tool fixture. By the aid of the automatic tooth aligning tool fixture, the requirement on angles of gear teeth of gear shafts and gear teeth of gears can be assuredly met. The automatic tooth aligning tool fixture comprises a tool base plate, tooth aligning portions and a floating axial positioning portion. The tooth aligning portions comprise gear shaft aligning teeth, gear aligning teeth, gear supports, cylinders and first limiting supports, the cylinders are mounted on the tool base plate, the first limiting supports are connected to output ends of the cylinders, the gear supports are mounted on the first limiting supports and are driven by the cylinders to move, and the gear shaft aligning teeth and the gear aligning teeth are respectively arranged on the gear supports and are respectively meshed with gear teeth on gear shafts and gear teeth on gears; the floating axial positioning portion comprises an axial support seat and a floating positioning head, a spring is inlaid in the floating positioning head, and the floating positioning head penetrates a guide sleeve, so that the floating axial positioning portion can be formed. The automatic tooth aligning tool fixture has the advantages that the automatic tooth aligning tool fixture is wide in application range, reliable in work and simple in operation, manual work by operators can be omitted in tooth aligning procedures, the tooth aligning accuracy can be guaranteed, and manual work can be reduced.
Owner:SHENYANG INST OF AUTOMATION - CHINESE ACAD OF SCI

High voltage line patrol robot with single motor to control movement of three arms

The invention relates to a high voltage line patrol robot with a single motor controlling movement of three arms. The high voltage line patrol robot comprises a first mechanical arm fixedly mounted on the left side of the bracket via a left support arm and a right support arm, wherein the first mechanical arm is located right behind a cross beam of the bracket. A second mechanical arm is fixedly mounted in the middle of the bracket via a left support arm and a right support arm and located right ahead the cross beam of the bracket, and a third mechanical arm is fixedly mounted on the right side of the bracket via a left support arm and a right support arm and located right behind the cross beam of the bracket. Disc cams and vertical bevel gears are mounted at the bottom ends of the three mechanical arms, a rotation shaft is fixedly mounted at the bottom of the bracket, a swing motor is mounted at the front end of the rotation shaft, and the disc cams and the vertical bevel gears are concentrically and fixedly mounted on the rotation shaft. The robot has the advantages that the cam move to control the movement of the mechanical arms, the robot can avoid a barrier when encountering the barrier and return to the original position for clamping, and the high voltage line patrol robot is driven by the cams, and has a small number of motors, and good climbing ability.
Owner:武汉科技大学资产经营有限公司

Laser electronic target based on non-diffraction light

InactiveCN102252651AHigh resolutionHigh spatial angle measurement accuracyAngle measurementInformation processingBeam splitter
The invention discloses a laser electronic target based on non-diffraction light. Laser transmitted by a cube corner pyramid lens enters a light splitting circuit and is divided into a horizontal beam and a vertical beam; the horizontal beam is reflected by a plane mirror and a beam splitter and then enters a conical lens to form a non-diffraction light spot O2; an image information processing system captures the non-diffraction light spot O2, and a horizontal yaw angle and an inclination angle of an object to be measured can be obtained by calculation of the center coordinate of the non-diffraction light spot; the vertical beam is reflected by the plane mirror on a gravity pendulum with damp, is projected into the beam splitter and enters the conical lens to form a non-diffraction light pot O1; and the image information processing system captures the non-diffraction light and acquires the roll angle of the object to be measured according to the calculation of the center coordinate of the non-diffraction light pot O1. The laser electronic target realizes all-optical space angle measurement based on the non-diffraction light, and has the characteristics of high space angle measurement accuracy, stability, and ambient light interference resistance capacity and compact structure.
Owner:HUAZHONG UNIV OF SCI & TECH

Tripping-prevention loop testing device for breaker

The invention discloses a tripping-prevention loop testing device for a breaker. The tripping-prevention loop testing device comprises a shell, a common power source terminal, a switching-on terminal, a trip terminal, a switch and a counting display screen, wherein the common power source terminal, the switching-on terminal, the trip terminal, the switch and the counting display screen are fixed on the shell. The switching-on terminal is connected with the trip terminal in series. The switch is provided with a first moving contact, a second moving contact, a first auxiliary contact and a second auxiliary contact. The trip terminal is connected to the first moving contact in series to form a trip loop. The common power source terminal is connected to the second moving contact in series to form a closing loop. The first auxiliary contact and the second auxiliary contact are respectively connected with the counting display screen and electrically connected to monitoring switch auxiliary contacts through wires to form a closed loop. When the switch is closed, the closing loop and the trip loop are connected at the same time. The tripping-prevention loop testing device for the breaker can ensure simultaneity of switching and closing operation of the breaker, and further avoid the phenomenon that a tripping-prevention loop is displayed to be normal in the manual testing process, while false operation occurs in the operation process.
Owner:STATE GRID CORP OF CHINA +1

Automatic measurement device and method for water body apparent spectrum bi-directional property

The invention discloses an automatic measurement device and method for water body apparent spectrum bi-directional property. The device comprises a master control system, an automatic observation geometry adjustment system, a global positioning system and a multi-angle optical measuring system, wherein the master control system is connected with the automatic observation geometry adjustment system, the global positioning system and the multi-angle optical measuring system through cables; the multi-angle optical measuring system is mounted on the automatic observation geometry adjustment system. The method comprises the steps of installation deployment, position information inputting, real-time time information inputting, sun azimuth calculation, automatic observation geometry adjustment and multi-angle spectrum acquisition. According to the invention, the automatic measurement of water body apparent spectrums at a plurality of observation azimuths can be implemented easily, the observation angle is strictly adjusted, and spectrum data is subjected to parallel acquisition, so that the simultaneity and synchronicity of spectrum data at the observation azimuths are guaranteed, the matching of the spectrum data acquired at different observation angles is greatly improved, and high-quality on-site observation data is provided for research of water body apparent spectrum bi-directional property.
Owner:WUHAN UNIV

Transformer area topology discovery method based on high-frequency synchronous acquisition and edge calculation

The invention provides a transformer area topology discovery method based on high-frequency synchronous collection and edge calculation, and the method comprises the following steps: obtaining the electrical quantity data of an electric meter, and storing the electrical quantity data to form time sequence electrical quantity data; performing time sequence electrical quantity data curve similarityanalysis at the concentrator; analyzing the connection relationship between the nodes by combining the correlation of the time sequence electrical quantity data; generating transformer area electricaltopology. The transformer area topology discovery method based on high-frequency synchronous acquisition and edge calculation has the advantages that hardware equipment does not need to be added, theworkload of field installation and maintenance is avoided, the data synchronism is ensured, the convergence time is short, and the accuracy of electrical topology judgment of a low-voltage transformer area is improved; moreover, after all devices in the network are successfully networked, the whole topology judgment process is carried out at the concentrator, i.e., data processing is carried outat a local execution end, so that the pressure of the master station is reduced, the real-time performance of data analysis and the service requirement of low time delay are met, and the system efficiency is improved.
Owner:CHINA GRIDCOM

Multi-module parallel output current-sharing current transformer

The invention discloses a multi-module parallel output current-sharing current transformer. The multi-module parallel output current-sharing current transformer comprises a rectification module, a first inversion module and a second inversion module which are successively arranged. The input of the current transformer is three-phase AC power which, through the rectification module, is converted into DC power as the input of the first inversion module and the second inversion module; four branches of the first inversion module and four branches of the second inversion module are connected in parallel between a positive busbar and a negative busbar of a DC side; output signals of the first inversion module and the second inversion module are used for supplying power to a traction motor to drive the traction motor to run; and when the traction motor stops running, a brake resistor starts working to consume voltage on the positive busbar and the negative busbar at the DC side of the current transformer, such that personal safety is guaranteed. The multi-module parallel output current-sharing current transformer brought forward by the invention is small in technical difficulty, low in investment cost and good in current sharing effect, perfectly solves the parallel output current sharing problem, reduces the production cost and the technical difficulty of the current transformer and enables batch production of a large-power current transformer to be possible.
Owner:CSR ZHUZHOU ELECTRIC LOCOMOTIVE RES INST

Downhole intelligent-control-type packing two-way injection allocation device

The invention discloses a downhole intelligent-control-type packing two-way injection allocation device comprising an expansion type packer. The two ends of the expansion type packer are connected with an upper measuring and adjusting water distributor and a lower measuring and adjusting water distributor correspondingly, and the other ends of the upper measuring and adjusting water distributor and the lower measuring and adjusting water distributor are connected with an upper control bin and a lower control bin correspondingly. When the downhole intelligent-control-type packing two-way injection allocation device is used, the parts are connected through an oil tube and put downwards into a well in sequence; a cable is in faultless connection with a well outlet to be connected with a ground control system, and thus power supply and communication are kept normal; nozzle front pressure meters, upper nozzle rear pressure meters, lower nozzle rear pressure meters, upper flow meters and lower flow meters in the upper and lower control bins collect or store data in real time; and the data are uploaded to the ground control system through an upper steel tube cable and the like, the working state of the packer is diagnosed timely, and the injection amounts of the upper layer and the lower layer are measured and adjusted timely.
Owner:CHINA PETROLEUM & CHEM CORP +1

Sampling system and processing method for gas chromatograph

The invention discloses a sampling system and a processing method for a gas chromatograph. The sampling system comprises a control system, a reversing device, sampling interfaces, tail gas interfaces, carrier gas interfaces, quantitative loop groups and chromatographic columns, wherein each sampling gas path is composed of a carrier gas interface, a quantitative loop group and a chromatographic column. When tested samples are to be injected, each gas feeding path is formed by connecting a sampling interface, a quantitative loop group and a tail gas interface together through the reversing device, so that the tested samples are synchronously injected into all quantitative loop groups through the gas feeding path; when the tested samples are analyzed, the tested samples in the quantitative loop group in each sampling gas path are injected into the chromatographic column through the carrier gas interface to be analyzed. By utilizing the sampling system and the processing method, the simultaneity and the precision in sampling of the tested samples are ensured, the problem of artificial interface factors in artificial sampling or respective sampling in two ways is avoided, and the precision and the reliability of a gas chromatograph used for detecting data of the tested samples are further improved.
Owner:STATE GRID CHONGQING ELECTRIC POWER CO ELECTRIC POWER RES INST

Fault branch identification method and system based on T node current

The invention relates to a fault branch identification method and a system based on T node current, wherein the fault branch identification method comprises steps of: acquiring the current analog quantities as shown in the description on the M side, the current analog quantities as shown in the description on the N side and the current analog quantities as shown in the description on the S side ofthe T-connection line; acquiring the current analog quantities as shown in the description and the current analog quantities as shown in the description of the T nodes on the M, N and S sides; judging whether the T-connection line is a three-terminal mode or a two-terminal mode; performing fault phase selection and judging whether there is a fault phase selection result; and if there is a fault phase selection result, locating fault branch in three-terminal mode or in two-terminal mode according to which is shown in the description, which is shown in the description and Kirchhoff's current law. According to the fault branch identification method and the system based on T node current, when the T-connection line fails, the current on the three sides of the T-connection line and the currenton the three sides of the T-node judged the fault branch according to the Kirchhoff's current law. If the system is normal, the fault branch judging is not performed. The fault branch can be accurately identified, and system misjudgment is avoided.
Owner:XUJI GRP +3

Method for controlling instruction execution of semiconductor technology

The invention discloses a method for controlling instruction execution of a semiconductor technology. The method includes the steps of establishing instruction objects corresponding to instructions and state objects corresponding to the instructions, wherein instruction information of the instructions corresponding to the instruction objects is stored in the instruction objects, and state information of the instructions corresponding to the state objects is stored in the state objects and comprises instruction completion conditions and instruction execution states; receiving the instructions sent by an upper computer, controlling a semiconductor device to execute the instructions according to the instruction information stored in the instruction objects corresponding to the instructions, updating the instruction execution states in the state objects when the instruction completion conditions stored in the state objects corresponding to the instructions are met, and when the instruction execution states are updated, outputting the updated instruction execution states to the upper computer. According to the method, multithreading execution of the instructions and feedback of the execution states can be achieved.
Owner:BEIJING NAURA MICROELECTRONICS EQUIP CO LTD

Rodent depression model construction device and experiment system

The invention relates to a rodent depression model construction device and an experiment system, and relates to the technical field of animal experiment methods and equipment. The rodent depression model construction device comprises a cage frame and a control mechanism, wherein a plurality of cage positions are arranged in the cage frame; a cage body used for containing an experiment animal is fixedly connected in each cage position; a vibration motor is arranged under the cage frame; the top of the vibration motor is connected with the bottom of the cage frame through vibration springs; an electric telescopic rod is also arranged at the upper part of the back surface of the cage frame; the fixed end of the electric telescopic rod is hinged to a wall; the telescopic end of a lead screw ishinged to the back surface of the cage frame; an electric control cabinet is arranged in the control mechanism; and the electric telescopic rod and the vibration motor are electrically connected withthe electric control cabinet. The consistency, the synchronism and the timing performance of experiment operation can be ensured; the operation steps of experimenters can be reduced to the maximum extent; the work efficiency is greatly improved; and the experiment quality is improved, so that the depression molding is efficiently and smoothly completed.
Owner:SHANDONG UNIV OF TRADITIONAL CHINESE MEDICINE

Double-end single baseline transmission-type visibility meter

The invention provides a double-end single baseline transmission-type visibility meter, and aims to provide a transmission-type visibility meter, which can reduce the optical pollution effect on the transmission-type visibility meter and semi-quantitatively measure self optical pollution situation. The goal is achieved through the following technical scheme: a first group of laser beams emitted by a first laser device orderly goes through a lens group, then is reflected by a first beam splitter prism, a lambda/4 wave plate, a second beam splitter prism, and a triangular prism, finally the reflected laser beams enter protective glass, the light beams are divided into transmission lights and reflection lights by the protective glass; the transmission lights go through the air in a baseline gas column, then are reflected by the triangular prism and converted into lights to be detected, the lights to be detected are split by the second beam splitter prism and converted into vertical lights, the vertical lights go into a P2 power measuring system; the reflection lights go through the second beam splitter prism for a second time and are reflected into a P1 power measuring system; then a second group of laser beams emitted by a second laser device goes through the similar route as the first group of laser beams and finally enters a P4 power measuring system and a P3 power measuring system; and finally value relationship between the obtained power values and atmospheric extinction coefficient of the baseline gas column can be obtained.
Owner:SOUTH WEST INST OF TECHN PHYSICS

Synchronous vertical lifting system for stereoscopic warehouse

The invention provides a synchronous vertical lifting system for a stereoscopic warehouse. The synchronous vertical lifting system comprises supporting pillars and a rigid lifting platform. The rigidlifting platform is provided with driving motors, and each motor individually drives a set of gear and rack mechanism; all motors are independently controlled by respective drivers, and control unitsof the drivers are in circular series connection; the synchronous vertical lifting system monitors torque values of all the motors in real time, a programmable controller is connected with all the drivers, and sensors are further connected to the programmable controller and comprise a plurality of sensor submodules; the programmable controller compares feedback pulse values of all the sensors withpulsed quantities of the corresponding drivers and send adjusting signals to ensure that the positions of the synchronous vertical lifting platform are synchronous. According to the synchronous vertical lifting system, all the drivers are in circular series connection, thus the drive synchronicity is guaranteed, and the synchronization precision is high. All the motors conduct individual drive, mechanical connection is not involved, and gear and rack mechanisms at the side positions are unlikely to get stuck.
Owner:SHANGHAI SURAY INFORMATION TECH CO LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products