41results about How to "Easy to plug and play" patented technology

The invention relates to a robust autonomous control method for the bus voltage of the DC micro grid. A nonlinear interference observer, DC bus voltage sagging control and voltage / current double-loop control are combined in the method. The method comprises that a DC-DC current transformer model is established; the nonlinear interference observer is used to track output current of the DC-DC current transformer model, and a band pass filtering link based on a second-order general integration link is used to filter output results of the observer; in DC bus voltage sagging control, the output results of the nonlinear interference observer serve as the output current; and in voltage / current double-loop control, perturbation current of the output results of the nonlinear interference observer is used for feedforward control. The method can be used to realize peer-to-peer control and autonomous operation of the DC micro grid, effectively improves dynamic response of the control system, inhibits fluctuation and impact of transient DC bus voltage, and is conducive to expansion and plug-and-play of distributed power supplies and loads in the DC micro grid.

The invention relates to a multifunctional integration embedded static image compression system, wherein the image gathering module comprises a video decoder, a video gathering programmable logic device and the corresponding static storage, the image compression module comprises a digital signal processor for preliminary treatment, small wave conversion, entropy encoding, rate control and packing with the corresponding synchronous dynamic memory, and the data transmission module comprises a main controller and a general purpose serial controller. The invention realizes visualized control for rate flow with the transmission velocity of flow compression as high as 480Mbps.

The invention discloses a spatial information network isomerism dynamic networking method based on a layered autonomous area. The method includes the following steps that according to components and functions of all parts in the whole spatial information network, a spatial information network system structure is set up; according to the properties, the functions, the zone positions and the requirements, all nodes in the network are divided into different layered autonomous areas with independent networking routing strategies; boundary nodes are selected to separate a control link from a service link and the inter-domain control information transmission and the intra-domain control information transmission are separated; an intra-domain sub-layer which is in line with international standards and an inter-domain sub-layer which has the same protocol and functions on all the nodes are set up to form a layered autonomous area model network protocol stack frame. According to the spatial information network isomerism dynamic networking method based on the layered autonomous area, coupling is little, the network nodes are plugged when needed, and the network managing control efficiency is high.

The invention discloses a PCB design layout audit device, the PCB design layout audit device comprises a device storage, the device storage is provided with the an automatic DFM audit module and a man-machine interaction audit module; the automatic DFM audit module comprises a line audit module, a via hole audit module, a copper sheet audit module, a silk screen audit module, a solder resist audit module and a steel mesh audit module; the man-machine interaction audit module comprises a netlist audit module, a layout audit module, a signal audit module, a structure IDF output module, a device height reporting module, a locating and wiring related interaction audit module, a silk screen related interaction audit module and a production related interaction audit module. The audit system is independently prepared into the electronic product device to be conveniently used by the customers in a plug and play mode, and the audit system is not limited by the mounting computer anymore. The Ukey device is inserted into the computer for the corresponding engineer and the PCB design audit can be executed according to the requirement from the engineer.

The invention discloses a portable digital circuit court system. The portable digital circuit court system comprises an audio and video recording terminal, a notebook computer with double screens or a flip screen, matched court hearing equipment and carried equipment; the matched court hearing equipment comprises a portable printer, a law enforcement recorder, a judicial mallet, a national emblem, a name brand, a scroll and a folding seat; the audio and video recording terminal is connected to the notebook computer with the double screens or the flip screen through Wife; the notebook computer with the double screens or the flip screen is connected to the portable printer through Bluetooth; and the notebook computer with the double screens or the flip screen realizes online registration, inquiry of the court hearing schedule, formal court hearing, playing of the court hearing discipline, live show of evidences, synchronous storing of recorded audios and videos, synchronous transcript, live broadcasting of micro-blogs, remote court hearing guidance, electronic signature and multi-channel remote access. By means of the invention, burden of circuit judgement judges is alleviated; and a good legal image is built for the people's court developing circuit judgement.

A multifunctional navigation car computer display, comprising: a display device for switching and displaying car GPS navigation and car computer display content; a touch operation device for switching and touch operating car GPS navigation and car computer; audio input and output devices, It is used for the audio and microphone input and output of the on-board computer; the power output device is used for the power input of the on-board computer and the detection and protection of the car battery; the data transmission device is used for data communication between the on-board GPS navigation and the on-board computer and data input and Output; GPS signal output device, used for GPS signal input of vehicle-mounted computer; vehicle-mounted computer connection device, used for connecting vehicle-mounted computer to realize display, touch operation, audio input and output, power input, data transmission, GPS signal input.

The invention relates to an Ethernet type LED display screen control system which is characterized in that 100M Ethernet technology is drawn into an LED control system so that the data transmission in the interior of the whole system is transmitted in a 100m Ethernet mode and the whole control system is more flexible and convenient to use and particularly suitable for occasions with special requirements. The control system adopts physical layer protocol of 100M Ethernet; the control system comprises a system controller and a module controller; the system controller comprises a plurality of independent 100 M Ethernet interfaces; each 100 M Ethernet interface is independently controlled by a field programmable device; the model controller comprises two network interfaces, an IN port for receiving data and loading autologous field programmable device and an OUT port for transmitting data to a module controller of next level.

The invention discloses a double-layer steel sheet pile combined enclosure structure and a construction method thereof, relates to the technical field of geotechnical engineering design and construction, and solves the problems of enclosure deformation increase, leakage instability and other risks caused by insufficient pile body rigidity of an existing steel plate pile. The double-layer steel sheet pile combined enclosure structure comprises double layers of steel sheet piles which are arranged on the periphery of a foundation pit and are tightly attached to the axes in the width direction ofthe double layers of steel sheet piles and are arranged parallelly or symmetrically, and a combined reinforcing layer which is formed by grouting and reinforcing soil between the double layers of steel sheet piles. The construction method comprises: the outer-layer steel sheet piles and the inner-layer steel sheet piles are inserted into the periphery of the foundation pit in sequence, and then asoil body between the inner-layer steel sheet piles and the outer-layer steel sheet piles is grouted and reinforced to form the combined enclosure structure; then a foundation pit soil body is excavated in sequence, all horizontal supports are constructed until reaching the pit bottom, an underground structure is constructed, support replacing components are arranged according to design requirements, and all the horizontal supports are dismantled; underground structure construction is completed, the soil body is backfilled to the natural floor elevation, the double layers of steel sheet pilesare pulled out, and pile pulling gaps are grouted and filled.

The invention discloses a multi-communication protocol intelligent sensing method, which can be used for power distribution and utilization Internet of Things edge calculation, and comprises the following steps: constructing a lightweight deep neural network model for power distribution and utilization Internet of Things edge calculation; training the lightweight deep neural network model throughprotocol frame data of various different communication protocol types to obtain a pre-training model; deploying the pre-training model into a multi-protocol intelligent sensing system of a power distribution and utilization terminal; and the multi-protocol intelligent sensing system performs sensing reasoning on the received protocol frame data according to the pre-training model so as to identifythe protocol type of the received protocol frame data. The multi-communication-protocol intelligent sensing method can be applied to edge calculation of the power distribution and utilization Internet of Things, various application protocols can be rapidly sensed on the edge side, and interconnection, intercommunication and plug-and-play of access equipment of a power distribution and utilizationterminal are promoted.

The invention discloses an interplanetary internet cluster networking method. The method comprises the steps that an interplanetary internet structure is set up according to the composition and the function of each part in the whole interplanetary internet network; all nodes in the network are divided into different clusters adopting independent networking route policies according to the property, the function, the area position and the task requirement, and therefore a cluster networking model can be set up; the boundary nodes are selected, a control link is separated from a service link, and inter-domain control information transmission and intra-domain control information transmission are separated; a planet network sub-layer in agreement with the international standard, a backbone network sub-layer possessing the same protocol and the same function on all the nodes, and a binding layer storing and forwarding binding packages among the nodes are constructed, and a network protocol stack structure of the cluster networking model is formed. According to the interplanetary internet cluster networking method, the coupling degree is small, the network nodes can be used instantly after being inserted, and the network management control efficiency is high.

An omnibearing vision system for robot based on general-purpose serial bus features that a multi-curve viewer is champed to a transparent protective cover, a camera is installed to the base in such amanner that its lens can be inserted in the transparent proctective cover for aligning it with the viewer, and an image acquiring box connected to the camera is connected with the background computerand the robot via general-purpose serial bus. Its advantages are plug-and-play function, hot attach and detah function, and high reliability and stability.

The invention discloses a composite bus. The composite bus integrates a low-voltage direct-current power supply bus and a communication bus on the basis of the traditional power supply bus duct. The composite bus comprises an aluminum alloy bus duct body, and an integrated high-voltage insulating bracket, a ground wire insulating bracket, a low-voltage power supply bus insulating bracket, a communication bus insulating bracket, a plurality of high-voltage copper bars with C-shaped insulating caps, a grounding copper bar, a communication bus small copper bar, a low-voltage power supply bus small copper bar and the like which are detachably arranged in the composite bus duct body. According to the composite bus, the integration of the traditional power supply bus, the low-voltage power supply bus and the communication bus is achieved, side end sliding connection assembly is adopted, the assembly is flexible and convenient, and integrated and modular design which is low in cost and easy to operate is achieved.

The invention discloses a modeling method of a uniform interface for accessing distributed energy sources into an active power distribution system. A model built by the method comprises an output interface and an input interface, wherein the information transmitted to a control system by distributed energy source equipment and an energy storage device is appointed by the output interface, and the information and action flow transmitted to the distributed energy source equipment and the energy storage device by the control system are appointed by the input interface. The method has the following outstanding effects: 1. a uniform interface model is built so that the controller of the active power distribution system adopts a uniform management mode and the control algorithm is simplified; 2. only interface information is transmitted, so that the data acquisition quantity is reduced and the communication efficiency is enhanced; 3. due to the distributed calculation mode, the calculation efficiency is enhanced; 4. by the uniform interface, a foundation is laid for the plug-and-play use of the equipment.

The invention provides an image compression method and system based on octave convolution and semantic segmentation. The scheme comprises the following steps: generating a semantic segmentation map of an original image by using a pre-trained semantic segmentation network; taking the semantic segmentation map and the original image as input of a first group of octave convolution networks, and generating a compressed representation of the image; performing up-sampling on the compressed representation, and taking the compressed representation and the semantic segmentation map as input of a second group of octave convolution networks to obtain an original image estimation value; and calculating a residual error between an original image and the original image estimation value, carrying out lossy coding on the residual error, and adding the original image estimation value and a decoded residual error image to obtain a final reconstructed image. According to the method, the distribution of bit streams in the image space can be guided by inputting the semantic segmentation map, high-frequency information and low-frequency information in the image space are independently optimized by using the octave convolution network, and a high-quality and high-detail image can be effectively synthesized while the compression ratio is ensured.

The invention belongs to the technical field of agricultural planting, and particularly relates to a fertilizing device for tea tree planting. Aiming at the problems that in the prior art, soil turning devices can only turn over soil at the edges of roots, fibrous roots of tea trees are easily shoveled off, and fertilizer is not easily fully absorbed by main roots, and the following scheme is provided. The fertilizing device comprises a shoulder pipe and two shovel pipes, a cavity is formed in the shoulder pipe, the shoulder pipe and the shovel pipes are communicated and integrally of a U-shaped structure, tips are welded to the ends, away from the shoulder pipe, of the two shovel pipes, leakage holes are formed in the positions, close to the middles, of the inner walls of the bottoms of the tips, a mounting hole is formed in the middle of the top of the shoulder pipe, a grip internally provided with a cavity is inserted into the mounting hole, and rotating shafts are fixed to the positions, close to the upper portions of the shovel pipes, of the two sides of the grip. According to the fertilizing device, the fertilizer can directly act near main roots, and is beneficial to loosening soil near the roots, so that the parts near the roots of the tea trees are in contact with air, the growth of the fibrous roots is facilitated, and the absorption of nutrients is increased.

The axial dimension of an injector (31) is decreased, inserting / removing work of a screw (20) is facilitated, and the qualities of a molding are enhanced. The injector has a heating cylinder (17), the screw (20), and a driver. The screw (20) has a main body portion (45a), and a plasticization portion provided with flights (53) formed to project from the outer circumferential surface of the main body portion (45a). Assuming the screw stroke is S, the effective length of screw is L, and a value obtained by dividing the sum of the screw stroke S and the effective length L of screw by the screw stroke S is an index e, the index e is set to satisfy a relation 2.0<Epsilon<4.5. Even if the screw (20) is shortened, resin can be melted well. Consequently, the axial dimension of the injector (31) is decreased.

The invention discloses distribution network communication optimization based on extended IEC 60870-5-104. The method comprises the steps that (1) an ACSI client establishes abstract services according to corresponding needs, wherein data updating and remote control operation are comprised; (2) SCSM automatically generates an extended XML-based 104 file according to the services described by the ACSI; (3) the size of the 104 file is determined, and if the message is too large, a Huffman-LZMA compression module is enabled, otherwise normal communication is carried out; (4) an ACSI server acquires the size of the 104 file to determine whether the 104 file is compressed, and if the 104 file is compressed, a Huffman-LZMA decompression module is enabled, otherwise normal communication is carried out; and (5) the ACSI server carries out related services according to request parameters. According to the invention, the generated extended 104 file is selectively compressed; distribution network communication optimization based on extended IEC 60870-5-104 is realized; and in particular, a Huffman-LZMA algorithm is used to handle the size of the 104 file, which contributes to fast transmission of the distribution terminal model information and is conducive to plug and play of a device.

The invention discloses a drilling-free forming pile based on radial pressurization and a construction method and application thereof. The drilling-free forming pile comprises a pile body, the pile body is formed through that slurry is continuously filled in a hard screen pipe wrapped by one layer of elastic sealing film until the elastic sealing film is burst open and the filled slurry enters a peripheral soil layer, the filled slurry is cement mortar or concrete, the hard screen pipe is a pipe body is inserted in the soil layer in advance, and a plurality of slurry filling holes are arranged on the side wall of the hard screen pipe. The construction method includes: 1, hard screen pipe inserting; 2, slurry filling; and 3, pile body forming. The formed pile body is an anti-sliding pile for stabilizing side slopes or a reinforcing pile for reinforcing a foundation, and a plurality of formed pile bodies form an anti-seepage wall. The drilling-free forming pile is reasonable in structural design, convenient to construct, low in investment cost, good in using effect, high in practical value, wide in application range and capable of solving the problems of inconvenient construction, high investment cost, long construction period, poor using effect and the like of an existing pile foundation.

The invention provides an improvement method for improving communication delay in distributed secondary control of a direct current micro-grid, which is mainly used for improving bus voltage drop caused by droop control and further improving the current sharing precision of output current of a plurality of parallel units at the same time, and therefore, the communication pressure of geographically adjacent direct current micro-grid units is reduced, and the overall performance of the direct current micro-grid system is improved. The improved communication delay algorithm provided by the invention mainly aims at the time delay in the communication link of a consistency algorithm, and solves the problems that the consistency algorithm cannot converge and the output of the direct current micro-grid is unstable due to the communication delay.

The invention provides a disposable endoscope protective sleeve, and relates to the technical field of medical instruments. According to the scheme, the disposable endoscope protective sleeve comprises a pipeline piece and a connector piece, wherein the pipeline piece and the connector piece are detachably connected; a first endoscope channel, a first water absorption channel and a first flushing channel are formed in the pipeline piece; a second endoscope channel, a second water absorption channel and a second flushing channel which are matched with the pipeline piece are formed in the connector piece; and a sealing piece is arranged at the end, away from the connector piece, of the first endoscope channel. The disposable endoscope protective sleeve can be used after being inserted without disinfection, and blood and other shielding tissue can be cleaned to make detection smoother.

The invention discloses a micro-grid multi-inverter parallel connection adaptive harmonic impedance remodeling control method. The method comprises three parts of harmonic impedance remodeling control, impedance remodeling factor adaptive control and voltage and current double-loop control. The harmonic impedance remodeling control can reduce the harmonic impedance of the inverter, reduce the voltage distortion rate and improve the voltage quality of the micro-grid. Impedance harmonic impedance self-adaptive remodeling can be achieved through impedance remodeling factor self-adaptive control, line impedance parameters and a micro-grid structure do not need to be known, and inverter equivalent harmonic impedance is self-adaptively remodeled by introducing output current harmonic component feedforward and combining a consistency algorithm. The outer voltage loop adopts multi-quasi-resonance control, can track a fundamental voltage instruction in a zero-static-error manner, and can reduce harmonic impedance, and the inner current loop adopts proportional control, so that the response speed of the system can be improved. According to the invention, harmonic current equalization of the multi-inverter parallel system of the micro-grid can be realized, the voltage quality of the micro-grid is improved, and the electric energy quality of the micro-grid is improved.

The invention belongs to the technical field of training simulation and discloses an intelligent mechanical manufacturing worker production training simulation system. The intelligent mechanical manufacturing worker production training simulation system is provided with a login module, a data entry module, a simulation operation module, a main control module, a simulation result analysis module, adata recording module, a VR module and a learning module. The intelligent mechanical manufacturing worker production training simulation system disclosed by the invention has the benefits that simulation operation data of each practitioner is saved by using an IC card through the login module so as to be convenient for a worker to plug and play, and the simulation system can be used for simulation without an account number, so that convenience and practical use are realized; meanwhile, through the VR module, a simulated mechanical manufacturing scene can be personally experienced by realizinga virtual reality technology, so that the understanding of mechanical manufacturing is deepened, and a simulation effect is improved; an imitation learning mechanism is applied to the system, and themanipulator system with the imitation learning mechanism not only can reproduce the teaching action, but also can obtain the purposes of teaching behaviors through learning; therefore, the intelligence degree is higher.

The invention discloses a waterproof socket, and aims at providing a waterproof socket which is outstanding in waterproofing function and meets the demand on waterproof use under the conditions that water is accumulated in a shallow level on the pavement and small to moderate rain occurs. The waterproof socket comprises a cover body of which the upper end is closed and while the lower end is opened, and a socket body arranged in the cover body; the socket body is positioned above the opening in the lower end of the cover body, comprising a plug-in hole panel which arranged in the cover body and divides the cover body into an upper space and a lower space; a socket hole is formed in the plug-in hole panel and faces the opening in the lower end of the cover body; the space in the cover body, positioned above the plug-in hole panel forms a mounting space for mounting inner parts of the socket; the space in the cover body, positioned between the plug-in panel and the opening in the lower end of the cover body forms a plug storing space.

The invention relates to a distributed microgrid system operation method based on Gossip algorithm. The microgrid system comprises an energy storage battery, a converter and a controller correspondingto the converter. The microgrid system comprises the following steps: collecting current and power parameter data in the microgrid system; Based on the power formula, the objective function of the microgrid system is constructed by using the parameter data. The Lagrangian function of objective function is constructed by Lagrangian multiplier method. Under the necessary condition of the existenceof Lagrangian extremum, the minimum value of the objective function is obtained by Gossip algorithm, and the optimal solution is obtained. The power data contained in the optimal solution is given toa controller in a home microgrid system, thereby controlling the active power of the microgrid system converter. The invention effectively solves the problems existing in the centralized control, improves the control performance of the system, and is conducive to realizing plug-and-play on the micro-network.

A locking opening structure of a steel cofferdam and a construction method for the locking opening structure relate to the field of deep foundation pit or water foundation construction. The locking opening structure comprises an outer steel pipe and an inner steel pipe, wherein the inner steel pipe is sleeved in the outer steel pipe, both the inner steel pipe and the outer steel pipe are provided with a longitudinal opening, and the outer diameter of the inner steel pipe is 1-2mm larger than the inner diameter of the outer steel pipe. The construction method includes the steps: selecting the outer steel pipe and the inner steel pipe, longitudinally cutting each steel pipe to form one opening, and adjusting pipe diameters of the outer steel pipe and the inner steel pipe which are unmatched so that the outer diameter of the inner diameter is 1-2mm larger than the inner diameter of the outer steel pipe; welding the outer steel pipe and the inner steel pipe at the positions of locking openings of two adjacent steel cofferdam components respectively, wherein the opening of the outer steel pipe is opposite to the opening of the inner steel pipe; applying grease mixing materials on the inner wall of the outer steel pipe and inserting the inner steel pipe into the outer steel pipe 1; and inserting and piling the steel cofferdam without performing grouting and filling sealing materials at the locking openings, so that construction of the steel cofferdam can be quickly completed, and good sealing effect is achieved.

The invention relates to a multifunctional integration embedded static image compression system, wherein the image gathering module comprises a video decoder, a video gathering programmable logic device and the corresponding static storage, the image compression module comprises a digital signal processor for preliminary treatment, small wave conversion, entropy encoding, rate control and packing with the corresponding synchronous dynamic memory, and the data transmission module comprises a main controller and a general purpose serial controller. The invention realizes visualized control for rate flow with the transmission velocity of flow compression as high as 480Mbps.

The invention discloses a modular coffer construction method for concrete without subsealing in the geologic condition of stratum: Firstly, a strutting piece and a guide frame are welded all around the outside of a steel barrel of a prepared cushion cap; Secondly, a lock steel pipe pile is downwards inserted along the guide frame, and the bottom of the lock steel pipe pile should reach the surface of a strong weathered rock; Thirdly, the inner of the steel pipe pile is downwards excavate vortically by a rotary drill rig, after deepening to the inner of a weak weathered rock, a drilled pile on the bottom of the steel pipe pile is constructed; Fourthly, after finishing all the drilled piles on the bottom of the steel pipe pile, a closed coffer is formed; Then, the river water in the coffer is drawn out and a support is installed in the coffer; After that, a submerged pump is arranged in coffer to draw out the percolating water, and then a foundation cleaning is dug by a digger to the bottom of the cushion cap; Finally, the concrete cushion is poured to the bottom of the cushion cap, and the cushion cap construction can be finished in the waterless and dry environment. The construction method has the advantages that the stratum does not need to be blown up under the water, the construction difficulties and amount are reduced, the whole stability of the coffer is strong, and the construction efficiency is high.

The invention discloses a spatial information network isomerism dynamic networking method based on a layered autonomous area. The method includes the following steps that according to components and functions of all parts in the whole spatial information network, a spatial information network system structure is set up; according to the properties, the functions, the zone positions and the requirements, all nodes in the network are divided into different layered autonomous areas with independent networking routing strategies; boundary nodes are selected to separate a control link from a service link and the inter-domain control information transmission and the intra-domain control information transmission are separated; an intra-domain sub-layer which is in line with international standards and an inter-domain sub-layer which has the same protocol and functions on all the nodes are set up to form a layered autonomous area model network protocol stack frame. According to the spatial information network isomerism dynamic networking method based on the layered autonomous area, coupling is little, the network nodes are plugged when needed, and the network managing control efficiency is high.