179results about How to "Transmission does not affect" patented technology

The application discloses a method and a device for sending data. The method comprises the following steps: dividing at least one OFDM (Orthogonal Frequency Division Multiplexing) symbol pair in the temporal frequency resource of the current subframe, and forming a resource element (RE) pair by two adjacent resource elements on the same subcarrier in the same OFDM symbol pair; setting at least one resource element pair as a reference signal resource element pair, and setting at least one resource element pair as a data resource element pair; when sending signals corresponding to OFDM symbols are generated, adding a first circulating guard interval before first resource elements in the reference signal resource element pair and the data resource element pair, and adding a second circulating guard interval behind second resource elements in the reference signal resource element pair and the data resource element pair; forming a sending frame by the sending signals corresponding to the generated OFDM symbols and sending the sending frame out. The transmission quality of downlink data and a reference signal can be improved by the technical scheme which is disclosed by the application.

The invention discloses a double-face needle loom. It includes a frame, on which a main transmission system is arranged, and the main transmission system includes a drive unit, a first main shaft and a second main shaft; wherein, the first main shaft or the second main shaft is provided with There is a sprocket, and the drive unit is connected to the sprocket through a chain; one end of the first main shaft and the second main shaft are connected through a coupling; the other ends of the first main shaft and the second main shaft extend out of the machine respectively. Outside the frame, two eccentric wheels are fixed at the protruding end of each main shaft, and the eccentric directions of the two eccentric wheels are opposite. In the above-mentioned structure of the present invention, the structure of the main transmission of the needle loom is simple, and the chain transmission adopted is convenient for maintenance; the compacting device is a swing type, which does not affect the main transmission, and the vibration of the machine body is small, so that high-speed acupuncture can be realized. It is of great significance to improve the bulk density and tensile strength of the product.

The invention relates to an energy / information two-way wireless transmission method, belonging to the field of wireless transmission. The method solves the problem that the existing wireless transmission technique can not simultaneously implement energy two-way transmission and information two-way transmission. The method is implemented on the basis of a wireless transmission device. The wireless transmission device comprises a network side wireless energy device and a load side wireless energy device, wherein an electric signal input end of the network side wireless energy device is coupled and connected with an electric signal output end of an electric network; the network side wireless energy device is wirelessly connected with the load side wireless energy device in a magnetic coupling mode; the load side wireless energy device is connected with a load; the network side wireless energy device comprises a first DC / DC conversion circuit, a first convertor, a first resonance circuit, a first controller and a first signal identification circuit; and the load side wireless energy device comprises a second DC / DC conversion circuit, a second convertor, a second resonance circuit, a second controller and a second signal identification circuit. The method is used in wireless transmission.

The invention provides a landslide real-time monitoring system. The system comprises a measurement device, a communication network system and a monitoring computer, wherein the measurement device comprises a linear displacement sensor, a movable strut, a fixed strut, a connecting belt, collectors and the like; the communication network system consists of a ZigBee coordinator with a general packet radio service (GPRS) module and a plurality of ZigBee terminal nodes; the ZigBee coordinate and the ZigBee terminal nodes form a field ZigBee network; and the ZigBee terminal nodes are the collectors in the measurement device. When landslide causes surface displacement, the length of the connecting belt varies, the variation can be measured through the linear displacement sensor, and landslide information collected by the collectors is transmitted to the monitoring computer of a monitoring center through the field ZigBee network. The surface displacement information is acquired by utilizing the linear displacement sensor, so the device has the characteristics of all-weather real-time monitoring, high measurement accuracy and low price.

The invention discloses a double-sided needling type needle-punching machine. The double-sided needling type needle-punching machine comprises a rack which is provided with a main transmission system, and the main transmission system comprises a driving unit, a first spindle and a second spindle; a chain wheel is arranged on the first spindle or the second spindle, and the driving unit is in transmission connection with the chain wheel through a chain; one end of the first spindle is connected with one end of the second spindle through a coupling; the other end of the first spindle and the other end of the second spindle extend out of the rack, two eccentric wheels are fixedly arranged on the extending end of each spindle, and the eccentric directions of every two eccentric wheels are opposite. According to the double-sided needling type needle-punching machine, the needle-punching machine main transmission structure is simple, and due to the fact that chain transmission is adopted, maintenance is convenient; a compacting device adopts a swing type, main transmission is not affected, machine body vibration is small, high-speed needle punching can be achieved, and an important significance in improving the volume weight and the tensile strength of products is achieved.

The invention relates to trapezoidal slow wave lines of a coupling slot for a traveling wave tube. Multiple groups of rectangular metal plates are periodically arranged along the axial direction of an electron beam passage of the traveling wave tube; the rectangular metal plates are vertical to the axial direction; the centers of the rectangular metal plates are provided with round holes, and the two ends of narrow sides of the rectangular metal plates are provided with rectangular coupling slots; the rectangular metal plates are coated by axially extending metal shielding shells of which the insides have rectangular shapes matched with the sizes of the rectangular metal plates. The trapezoidal slow wave lines are characterized in that: at least one photonic crystal bar which extends along the axial direction of the electronic beam passage is arranged in the rectangular coupling slots. The trapezoidal slow wave lines have the advantage of overcoming the defects of narrow bandwidth and unstable higher-mode work existing in the conventional trapezoidal slow wave lines of the coupling slot.

The invention discloses a wireless Mesh network routing based on multi-path concurrence and a method thereof. With the adoption of the wireless Mesh network routing based on the multi-path concurrence and the method thereof, through calculating route delay-constrained parameters, identifying a networking topology, establishing an equivalent path time delay model and modifying a routing process, multiple transmission paths are used when nodes are transmitted, and even if data are lost on a single path, the transmission is not influenced, so that the reliability of the transmission is improved, the transmitted data are protected through multiple paths, retransmission of the data is reduced, the negative effect that a wireless link is unstable is lowered, the instantaneity is improved, more bandwidth can be acquired by adopting multi-path transmission, the end-to-end data transmission delay can be effectively reduced, and the fairness of network resource distribution can be improved.

The invention discloses a bidirectional forwarding detection method, and belongs to the technical field of switches. The method comprises that S1) a switch receives a data message which is not matched by a forwarding flow table, and uploads a data message flow associated with the data message to a flow controller; S2) the flow controller extracts characteristic information from the data message flow, and processes the characteristic information by combining preset forwarding information to form a new data message forwarding path; and S3) the flow controller issues a bidirectional forwarding detection message to both source-end and target-end switches, which are associated with the data message forwarding path, to trigger corresponding bidirectional forwarding detection. The method has the advantages that bidirectional forwarding detection can be carried out in any data transmission channel, the data transmission path can be re-planned in a unified way, normal data transmission is not influenced, and link faults can be detected timely.

The invention discloses a network delay measurement method and device, electronic equipment and a storage medium. The method comprises the steps of obtaining a plurality of pairs of matched SYN packages and ACK packages from data packages transmitted between a client and a server and obtained by the network delay measurement device; carrying out IP address translation on each pair of SYN packet and ACK packet to obtain a region corresponding to each pair of SYN packet and ACK packet; according to the network time delay data of each region, obtaining network delay statistics of various regions,wherein the network time delay data of each region comprises arrival time differences of all pairs of SYN packets and ACK packets in the region, and the arrival time difference of each pair of SYN packets and ACK packets is the time difference of the SYN packets and ACK packets arriving at the network time delay measurement device. According to the network time delay measurement method and device, the electronic equipment and the storage medium, which are provided by the embodiment of the invention, the accuracy and real-time performance of the network time delay measurement result are improved.

The invention discloses a method, a system and a device for cooperative communication between micro cells. The micro cell of user equipment confirms a neighbouring micro cell of the user equipment according to measurement report information reported by the user equipment; the micro cell of the user equipment sends scheduling information about the user equipment in the micro cell to the neighbouring micro cell of the user equipment and gives an instruction that the neighbouring micro cell of the user equipment allocates time-frequency resource for the user equipment, wherein time-frequency resource identical to that of the micro cell of the user equipment can be allocated for the user equipment, or time-frequency resource allocated by the micro cell of the user equipment can be allocated for user equipment managed by the neighbouring micro cell which does not affect operation data transmission of the user equipment. Through adoption of the method, the system and the device, multiple micro cells covering the same area cooperate and transmit operation data for the user equipment, thereby preventing mutual interference.

Embodiments of the invention provide a video transmission method, device and system. The method comprises the steps of receiving a video transmission task; searching local monitor videos for video clips matched with the video transmission task; creating a clip backup task for each video clip, and creating a data transmission thread; and according to the clip backup tasks and local transmission parameters, transmitting each video clip to a working cloud storage system through the data transmission thread, wherein the transmission parameters are determined and sent to a first CVS by a CMS according to network bandwidth information sent by a CVM of the working cloud storage system. According to the video transmission method, device and system, the transmission parameter for transmitting a monitor video by the cloud storage system is adjusted and backed up in real time according to network bandwidth information of the working cloud storage system, so as to guarantee that the real-time monitor video is transmitted normally.

The invention provides a traffic scheduling method and system based on a time window. The traffic scheduling method based on the time window comprises the steps of: receiving a data transmission service request, and, according to the network resource data of a data centre, pre-distributing network resources needing to be used by the data transmission service request through a K-way shortest path algorithm, so that a pre-distribution result is obtained; according to the pre-distribution result, performing optical layer reconstruction on the network of the data centre, so that the topology of adata transmission link in the data transmission service at this time is obtained; according to the topology of the data transmission link, distributing service data in the current time slot in the data transmission service, and calculating the remaining resources in the topology of the data transmission link in the data transmission service at this time in the current time slot; and, if the fact that the remaining resources exist in the data transmission service at this time in the current time slot is obtained by calculation, distributing to-be-transmitted data distributed to the subsequent time slot in the data transmission service request to the current time slot, so that transmission is carried out. By means of the method provided in the invention, the wide area network resource utilization rate between data centres is increased.

The invention discloses a neutral-point balance circuit applied to a half-bridge three-level DC converter; the neutral-point balance circuit mainly comprises a DC bus, a half-bridge three-level main circuit, capacitors Cin1 and Cin2, a flying capacitor Css, clamping diodes D1 and D2, and an output circuit; the invention also discloses a control method based on said circuit; the method uses up-down voltage dividing capacitance voltage difference formed by drive circuit and switch tube characteristic differences in system real operations to correct modulated waves, thus realizing the voltage dividing capacitance voltage sharing digital control method, and effectively solving the neutral-point imbalance problems caused by drive chip and switch tube characteristic differences in a conventional half-bridge three-level circuit; the neutral-point balance circuit and control method thereof are fast in response speed, and high in control precision.

The invention belongs to the 3D video processing field of the new generation information technology based on the augmented reality, to be specific, relates to a 360-degree multi-viewpoint 3D holographic video acquisition method, and a realization method. A plurality of video cameras are used for the full-color, high resolution, and all-dimensional image acquisition, pixel operation and pixel aggregation, and therefore the 3D holographic video acquisition way and the processing procedure can be simplified, the consumption of a lot of time and dedicated devices can be saved, the all-dimensional and full-color 3D holographic videos can be acquired, and the spatial 3D visual sense of the user can be greatly enhanced. The video cameras adopt the MAC architectures, and can share the channel in a way of combining the statistical multiplexing and the assembly line transmission, and therefore the rapidness and the effectiveness of the data transmission can be improved, and the resource waste condition and the channel conflict condition can be prevented. The video database and the user terminal adopt the single-instruction multi-channel transmission way, and then the wireless resource transmission unified allocation can be realized, and therefore the data transmission speed can be accelerated, and the 3D holographic video processing and display speed of the user terminal can be accelerated.

The invention discloses a method and a system for realizing transparent transmission of files in a CMMB channel. Files and a path structure under an awaiting transmission directory are encapsulated in a data segment of a CMMB multiplex frame defined in the GY / T 220.2 in a mode of IP packet to be transmitted, so that the re-establishment of the front end encapsulation and the terminal receive of the files and the path structure under the awaiting transmission directory is realized, and at the same time, the transmission of other services defined in the GY / T 220.2 is not affected.

The invention relates to a preparation method of a composite bipolar plate for a fuel cell and a three-dimensional flow field design scheme thereof. The composite bipolar plate has a three-layer structure composed of a composite carbon plate having a low gas permeability in the middle and an expanded graphite plate having a porous structure on the outer side. The flow field is engraved on the outer porous expanded graphite plate, and the porous structure of the outer expanded graphite plate is used to increase the fuel cell gas transmission effective area and improve the fuel cell drainage efficiency. The three-dimensional flow field engraved on the expanded graphite plate is arranged at intervals of lower width and narrower than the traditional rectangular cross-section flow path. By controlling the opening and closing of the lower width and upper narrow flow path, the forced gas generates flowing in the direction perpendicular to the surface of the bipolar plate, so as to realize three-dimensional transmission of gas, thereby effectively improving the gas mass transfer process inside the fuel cell, preventing water flooding, and improving the power generation performance and operational stability of the fuel cell.

The present disclosure provides a transmission capability updating method and device. The method is used for a terminal, and the terminal is respectively connected to an LTE base station and an NR base station. The method includes: determining that a transmission capability of the terminal has changed; generating capability update reporting information, wherein the capability update reporting information includes the changed transmission capability of the terminal; and sending the capability update reporting information to the NR base station, so that the NR base station sends the changed transmission capability of the terminal to the LTE base station. Therefore, both the NR base station and the LTE base station in the present disclosure can learn the changed transmission capability of theterminal, and update the respective information storage according to the changed transmission capability of the terminal, without affecting the transmission of the terminal service, thereby improvingthe efficiency of transmission capability updating.

The invention relates to the field of machines, in particular to a C type continuous elevator. According to the technical scheme, the C type continuous elevator comprises a machine frame, a driving device and a chain assembly. The machine frame is provided with an upper entrance and a lower entrance. The chain assembly comprises two first chains, two second chains and a conveyor belt, wherein the two sides of the front end of the conveyor belt are connected to the side walls of the corresponding first chains in a rotating mode respectively, and the two sides of the rear end of the conveyor belt are connected to the side walls of the corresponding second chains in a rotating mode respectively. The upper entrance and the lower entrance are located in the same side of the machine frame. The conveyor belt comprises a plurality of battens which are connected with one another in a rotating mode. The upper entrance and the lower entrance are located on the same side of the machine frame, and therefore after the elevator is matched with other devices, the goods displacement is relatively short, and the space utilization ratio of a whole logistics device is high.

The invention belongs to the technical field of lithium batteries, and particularly relates to a battery diaphragm. The invention creatively and firstly provides the battery diaphragm organically integrating improved conductivity, puncture resistance and heat stability. The battery diaphragm comprises a diaphragm base layer, and a conductive layer and a reinforcement layer that are located on thetwo sides of the diaphragm base layer, wherein a layer matrix of the conductive layer, a layer matrix of the reinforcement layer and the diaphragm base layer are a whole; an internal interface does not exist; and the problem of influence on a battery life due to falling-off of the conductive layer and the reinforcement layer in a composite diaphragm in the prior art is avoided.

The invention discloses a graphical transport layer, an organic light-emitting diode(OLED) device containing the graphical transport layer and a preparation method. The graphical transport layer comprises a conductive high refractive index region and a conductive low refractive index region, wherein the difference of refractive indexes of the high refractive index region and the low refractive index region is more than 0.2, the graphical transport layer is arranged between a first electrode and an organic electroluminescence layer of the OLED device, the total light reflection quantity of the OLED device can be reduced effectively, the light extraction efficiency of the OLED device is improved, and the method is easy to implement and integrate and obvious in effect.

The invention discloses a mechanical drive dual-disc development device for a development machine, which consists of development heads, a development arm and a drive mechanism, wherein the development arm is arranged on a supporting mechanism; one end of the development arm is connected with the development heads by a diverter, and the other end of the development arm is connected with the drive mechanism by a universal coupling; the drive mechanism consists of a motor, a speed reducer and a drive shaft; and a hydraulic cylinder is also arranged on the supporting mechanism, and is connected with the development arm. The dual-disc development device adopts a unique design, realizes the mechanical drive of the development heads, has stable working performance and improves the development efficiency by over 50 percent.

The invention discloses a method and a system for demodulating communication signals in a spectral domain. The method comprises the following steps that: step 1) an estimated value processing unit of a cyclic autocorrelation function calculates a corresponding estimated value of the cyclic autocorrelation function according to one section of received continuous CDM-OFDM (code division multiplexing-orthogonal frequency division multiplexing) cyclic delay modulation signals in the length of L OFDM (Orthogonal Frequency Division Multiplexing cycles; step 2) a cyclic delay detection processing unit respectively calculates corresponding likelihood functions aiming at different cyclic delay values and obtains a corresponding cyclic delay vector according to a maximum likelihood criterion; and step 3) a cyclic modulation vector mapping processing unit maps the cyclic delay vector and obtains a cyclic modulation signal which is sent. The method and system disclosed by the invention can be applied to channel multiplexing and transmission of the spectral domain, and the capacity of the system can be simultaneously increased on the premise of not affecting the transmission of ordinary OFDM signals; and a block computing way is adopted, so that the computational complexity can be greatly reduced and processing time and resources can be saved.

The invention provides an attack data cleaning method, device and apparatus, a storage medium and a system. The method comprises the steps of detecting whether attack data exists in a network data flow or not; converting a destination address of the network data flow from a data receiving address into an address of a flow cleaning area under the condition that attack data exists in the network data flow; sending the network data flow after the destination address is converted to routing equipment; wherein the flow cleaning area is used for cleaning attack data in the network data flow, converting a destination address of the cleaned network data flow into a data receiving address, and sending the network data flow of which the destination address is the data receiving address to the routing equipment. According to the embodiment of the invention, the transmission speed of the normal network data flow can be ensured while the attack data is blocked.

The invention is applicable to the field of data transmission, and provides a data transmission control method, a data transmission control module and a terminal for high and low speed coexisting bus terminals. The method comprises the following steps of: judging transmission modes corresponding to protocol words obtained by performing GJB289A protocol processing on a high speed interface component and a low speed interface component according to judgment conditions of a normal transmission mode; and controlling the high speed interface component or the low speed interface component to perform transmission by using a double-bus mode or single-bus mode according to bus operating mode information, received channel failure feedback information and the transmission mode corresponding to each protocol word. In the embodiment of the invention, the data transmission control method for the high and low speed coexisting bus terminals is realized, so the problem of data transmission of the high and low speed coexisting bus terminals is solved, the compatibility with the conventional GJB289A bus communication system is ensured and the transmission of the conventional communication system is not influenced.

The invention discloses a jointed board automatic welder, a joint board automatic welder unit and a board power transmission mechanism. The joint board automatic welder unit comprises a plurality of jointed board automatic welders. The jointed board automatic welder comprises a machine table, a welding copper bar and two board power transmission mechanisms, wherein the welding copper bar is arranged on the machine table. The board power transmission mechanism comprises a motor reducer, a driving wheel and at least two driven wheels. All the driven wheels are respectively located at one side of the length direction of the driving wheel and are spaced along the length direction of the driving wheel; each driven wheel is connected with the driving wheel by a belt; and the motor reducer is connected with one end of the driving wheel so as to drive the driving wheel to rotate, and further, the belt connected with the driving wheel and the driven wheels are driven to rotate, so that a board located on each belt is transmitted along the belt. According to the board power transmission mechanism, not only can the automatic transmission of the board be realized but also the spacing adjustment of the unit cannot be influenced, and when the number of the machine tables is changed, the machine tables can be rapidly combined to meet the production requirements of special containers.

The application aims to provide a method and device for backing up database logs. The method comprises the specific steps: acquiring a list of database log files; placing the list of log files in a transmission queue, wherein logs in the list of files are arranged according to a preset log sequence; acquiring log files corresponding to the list of log files; transmitting the log files to a corresponding server according to the log sequence. Compared with the prior art, the application enables logs in an ASM system in an RAC (real application cluster) environment to be automatically backed up for the purpose of orderly transmission of complete log files by: acquiring the list of database log files, ranking and placing the files in the transmission queue, and transmitting the log files to the corresponding server according to the log sequence of the transmission queue after the log files corresponding to the list of log files are acquired; labor cost is reduced, backup efficiency is improved, and original settings in a database by a user are unaffected.

The invention discloses a photovoltaic generation greenhouse with adjustable solar illumination and uniform illumination. The photovoltaic generation greenhouse comprises a greenhouse body, wherein a photovoltaic generation roof and a diffusing glass roof cover the greenhouse; a light intensity detection unit array, a decision making unit and a communication system are arranged in the greenhouse; a plurality of photovoltaic assemblies cover the sunny slope of the photovoltaic generation roof and are uniformly distributed; the euphotic area of the photovoltaic assemblies can be adjusted, and diffusing glass is arranged on the sunny slope without photovoltaic assemblies, so that sunlight can pass through; the light intensity detection unit array is connected with the decision making unit through the communication system and is used for supplying greenhouse illumination data to the decision making unit, and the decision making unit is connected to the photovoltaic assemblies through the communication system and is used for judging the greenhouse illumination data and sending an instruction to the photovoltaic assemblies, so as to adjust the euphotic area of the photovoltaic assemblies and adjust the illumination in the greenhouse. According to the photovoltaic generation greenhouse, photovoltaic generation equipment is arranged on the greenhouse, so that the illumination in the greenhouse can be adjusted, and an obvious shadow of the photovoltaic generation equipment is difficult to form in the greenhouse.

The invention discloses a display device which includes a mainboard PCB, a signal receiver and a fiber structure. The signal receiver is disposed on the mainboard PCB for receiving a remote-control signal. The fiber structure is intended for transmitting the remote-control signal. A rear end of the fiber structure is connected to the mainboard PCB and is disposed opposite to the signal receiver. Afront end of the fiber structure protrudes from the display device. The display device transmits the remote-control signal through a fiber structure, one end of the fiber structure protrudes so as toreceive the remote-control signal, and the remote-control signal is transmitted to the signal receiver through the fiber structure. Since light can be in total reflection transmission through fibers,the fiber structure can be bent in the display device without influencing light transmission, and fibers have small sizes and can insert to the gaps between modules inside the display device and a housing, the signal receiver can be disposed on the mainboard PCB instead of the bottom part of the display device, or there is a need for independently disposing a PCB. Therefore, the display device can lower cost, and is conducive to the reduction of the width of a lower frame of the display device.

The invention relates to a data transmission method and device, computer equipment and a computer readable storage medium, and the method comprises the steps: obtaining to-be-transmitted data, and determining the priority of the to-be-transmitted data; and if the priority of the to-be-transmitted data is the highest priority and the DMA is idle, transmitting the to-be-transmitted data in a DMA mode. According to the method, after the to-be-transmitted data is received, the priority of the to-be-transmitted data is determined, and if the priority of the to-be-transmitted data is the highest, the to-be-transmitted data is immediately transmitted through DMA, so that as many data as possible can be transmitted on the premise of not influencing a key real-time transmission service.

The invention relates to a two sighting error calibration system for an autocollimation theodolite. The two sighting error calibration system comprises a calibration working platform, an adjustable support and a two target simulator, wherein a to-be-tested autocollimation theodolite and the adjustable support are respectively arranged on the calibration working platform; the two target simulator is arranged on the adjustable support, and center height of the to-be-tested autocollimation theodolite is equal to the center height of an optical axis of the two target simulator; the two target simulator comprises flat glass, a doublet lens assembly, a reticle and an illuminator which are sequentially arranged along an emergent light path of the to-be-tested autocollimation theodolite; the flat glass is used for providing a planar reflection target for the to-be-tested autocollimation theodolite; and the doublet lens assembly, the reticle and the illuminator are used for providing an infinite target for the to-be-tested autocollimation theodolite. The two sighting error calibration system provided by the invention has the advantages that structure is simple, operation is easy, and work of calibrating the planar reflection target and the infinite target can be realized in one step, so that working efficiency is greatly improved.