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54results about How to "Reduce transmission impact" patented technology
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High bit-error long time-delay network self-adaptive transmission method based on network coding
InactiveCN101841479AReduce transmission impactReduce the impactError preventionNetwork traffic/resource managementTransmission protocolReliable transmission
The invention relates to a high bit-error long time-delay network self-adaptive transmission method based on network coding. A transmitting terminal conducts self-adaptive network coding to transmitted TCP messages according to the magnitude of the flow of a transmission layer and then transmits the coded messages to a receiving terminal. The receiving terminal obtains original messages through network decoding restoration. Since the transmitting terminal conducts redundant coding to the transmitted messages and the receiving terminal can restore the original transmitted messages as long as partial coded messages are received, the impact of high link bit errors on transmission performance is greatly reduced, the transmission protocol throughput is higher, the retransmission rate of the messages is greatly decreased and the transmission performance is greatly promoted. Moreover, since the self-adaptive coding method is adopted, the confidentiality of information is improved. The methodrequires no support from intermediate nodes for transmission, belongs to an end-to-end reliable transmission acceleration method and is compatible with the current popular reliable transmission protocols.
Owner:SICHUAN UNIV
Portable outline detection device for train wheel tread
ActiveCN105466355AProfiling Motion RealizationAchieve full range measurementUsing optical meansImage resolutionLight beam
The invention discloses a portable detection device used for measurement of a train wheel tread outline. Through application of the device disclosed by the invention, the high-precision quick measurement of wheel tread wear can be completed. The portable detection device disclosed by the invention is realized by the technical scheme that a stepping motor is used to drive a screw rod and make a nut move along a wheel axis direction; and by a V-shaped spherical guide rail and a profiled motion mechanism, moving of the nut drives a laser displacement sensor to carry out two-dimensional motion in a plane passing a wheel axle, and tracks of the motion copy a standard tread outline of the wheel, so that the tread outline is scanned and measured point by point. The profiled measurement is realized, so that the sensor with a small measurement scope is needed to satisfy measurement requirements for the whole tread outline. Measurement accuracy and resolution are higher. Outline dimensions of an instrument are smaller. The sensor is installed and designed in an inclined manner, so that the problem that the measurement accuracy is reduced or even the measurement cannot be realized thanks to an oversized included angle between a measurement light beam and a normal line of a measured point at a place with a large rate of curve of the tread outline is solved.
Owner:QINGDAO UNIV
Electricity consumption information collection system electric energy meter sensing method based on narrow band power line carrier wave
InactiveCN107516409AImprove replacement efficiencyIncrease pressure limitedElectric signal transmission systemsElectricityPrimary station
The invention discloses an electricity consumption information collection system electric energy meter sensing method based on narrow band power line carrier wave, and relates to a collection method. During the application process, if electric energy meters are increased or replaced, the change of the electric energy meter archive information cannot be reported to the main station of the collection system in time. The method comprises the following steps: (11) carrying out abbreviated addressing and automatic table searching by a collector, and forming an electric energy meter archive; (12) once the change of the electric energy meter archive is sensed by the collector, actively reporting the change information to a concentrator by a narrow band power line carrier wave channel; and (13) reporting the archive information to the main station of a collection system in time by the concentrator. The automatic sensing of carrier wave is adopted, the assembly and disassembly of electric energy meters can be found out in time, other incidents are not taken into account, and the processing is real-time. After a meter or collector is installed, the information can be reported in several seconds. The active reporting is realized, and the information replacement efficiency is improved effectively.
Owner:STATE GRID ZHEJIANG ELECTRIC POWER +2
Meter search method based on DL/T 645 standard
InactiveCN107483307AReduce the impact of data transfersImprove efficiencyElectric signal transmission systemsDatabase queryingPrimary stationCollection system
The invention discloses a meter search method based on the DL / T 645 standard, related to a collection method. At present, when a new electric energy meter appears, the efficiency of the search meters is greatly affected caused by the existence of the original electric energy meters when the automatic meter search is executed. The meter search method based on the DL / T 645 standard comprises the following steps: 1) a concentrator communicates with an intelligent electric energy meter; 2) the intelligent electric energy meter judges whether any messages corresponding to the address of the concentrator sent by the concentrator is received in a set time after receiving the contraction addressing message of the concentrator; if so, does not respond to the contraction addressing message; otherwise, responds to the contraction addressing message and sends the address information; and 3) the concentrator stores the received address information of each intelligent electric energy meter, and actively reports to the main station of the collection system after generating an address file of the electric energy meters on the RS-485 line. By means of the meter search method based on the DL / T 645 standard, the meter search efficiency in the case of an incremental electric energy meter is greatly improved.
Owner:STATE GRID ZHEJIANG ELECTRIC POWER +2
Mechanical supercharger structure with speed-increasing and shock-absorbing functions
ActiveCN102330597AReasonable structureStructure, reasonable designMachines/enginesEngine componentsDrive shaftEngineering
The invention provides a mechanical supercharger structure with speed-increasing and shock-absorbing functions, and can be applied to the technical field of engines. A front cover plate assembly (43) of the mechanical supercharger structure is provided with an input shaft (8) in a front cover plate (10), a bearing plate assembly (44) is provided with a driving shaft (27) and a driven shaft (24) in a bearing plate (22), an input gear (18) and an output gear (31) are respectively installed on an intermediate shaft (17) and the driving shaft (27), the intermediate shaft (17) is meshed with the driving shaft (27) by an input gear (18) and an output gear (31), a driving gear (30) and a driven gear (19) are respectively installed on the driving shaft (27) and the driven shaft (24), and the driving shaft (27) and the driven shaft (24) are meshed through the driving gear (30) and the driven gear (19). The mechanical supercharger structure provided by the invention can reduce the damage on theengine from the supercharger caused by emergency brake.
Owner:JAPHL POWERTRAIN SYST
Adjustable remediation well system for soil and underground water remediation
PendingCN111804717AHigh precisionReduce unnecessary wasteContaminated soil reclamationGroundwater remediationPipe fitting
The invention discloses an adjustable remediation well system for soil and underground water remediation. The adjustable remediation well system comprises a well lid, a well body, an adjustable telescopic pipe and a high-pressure chemical injection pipe. The well body comprises a prefabricated screen pipe serving as the inner wall, a hole sealing section serving as the outer wall and a filtering section. The adjustable telescopic pipe is vertically arranged in the center in the well body, is hydraulically driven and comprises at least two telescopic pipe fittings. A packer is arranged on the outer wall, close to the lower end, of each telescopic pipe fitting; all the packers are connected with external hydraulic control equipment through control hoses and are driven by the external hydraulic control equipment to expand; medicine outlets are formed in the positions, corresponding to the lower portions of the packers, of the lower portion of the high-pressure medicine injection pipe; a submersible pump is arranged at the bottom of the well body; the submersible pump is connected with a ground extraction pump through an extraction pipeline. By means of the application, the injection depth and the injection section of the repairing agent can be adjusted, so that the pertinence and accuracy of repairing agent injection are improved, and the accurate repairing target is achieved.
Owner:SHANGHAI URBAN CONSTR DESIGN RES INST GRP CO LTD
Method for detecting maximal transmission unit of path
ActiveCN100459576CReduce transmission impactGuaranteed throughputData switching networksMaximum transmission unitNetwork security
Owner:HUAWEI TECH CO LTD
Optical fiber rotary connector based on doublet lens and application thereof
ActiveCN113376758AReduce aberrationLow processing technology requirementsCoupling light guidesGratingEngineering
The invention discloses an optical fiber rotary connector based on a doublet lens and application thereof, the optical fiber rotary connector comprises a rotor, a stator and a central light transmission channel, and the rotor and the stator both adopt the same thermal expansion core single-mode optical fiber and the doublet lens (a positive lens and a negative lens). Light is emitted from the stator optical fiber and is subjected to beam expansion and collimation through the stator doublet lens, the collimated light is transmitted in air and is gathered by the rotor doublet lens, the light is coupled into the rotor optical fiber, and the light is reflected by the sensing grating and returns to the stator optical fiber through the optical fiber rotary connector. The optical element and the optical path reversible principle are combined, transmission of optical signals from the rotating end to the static end is achieved, two-way transmission of the optical signals is achieved, and therefore the optical fiber grating sensing system is adapted, the structure is simple, cost is low, coupling efficiency is high, reliability is high, and the service life is long.
Owner:KUNMING UNIV OF SCI & TECH
Method for detecting furnace tube of hydrogen production furnace
InactiveCN109709211AImprove water qualityConstant pressureAnalysing solids using sonic/ultrasonic/infrasonic wavesSound energyAcoustic wave
The invention discloses a method for detecting a furnace tube of a hydrogen production furnace. The method comprises steps that (1), formulating a comparison table of the artificial crack depth and the amplitude of a sound wave signal; (2), removing the dust and dirt on a surface of the furnace tube; (3), adjusting the detection equipment and controlling the flow rate of the water; (4), opening awater valve to adjust the sound wave signal; (5), performing motion detection; and (6), recording waveforms. Based on the comparison table, the damage degree of the furnace tube is rated, as receiving / transmitting probes have low frequency and long wavelength, the penetrating power is strong, moreover, the two probes cooperate with each other, the loss of transmitted sound energy is greatly reduced, detection sensitivity is significantly improved, the water is used as a coupling agent filled between a special tile and a wall of the furnace tube, so the air content between the receiving / transmitting probes and the outer wall of the tube is greatly reduced, improvement of the transmission stability of the receiving / transmitting probes for the acoustic signal is facilitated, and thereby accuracy of the test result is guaranteed.
Owner:南京驰新科技有限责任公司
Polyethylene microporous diaphragm and preparation method thereof
ActiveCN111628134AImprove charge and discharge performanceReduce the impactSecondary cellsCell component detailsLithium electrodeThermal shrinkage
The invention discloses a polyethylene microporous diaphragm. The microporous membrane comprises a polyethylene matrix microporous membrane and a modified reinforced coating compounded on one side ortwo sides of the polyethylene matrix microporous membrane, the thickness of the polyethylene matrix microporous membrane is 4-30 microns, the porosity is 30%-65%, the aperture is 0.5-3 microns, and the thickness of the single-layer modified reinforced coating is 2-5 microns; in modified reinforced coating, due to the addition of the nano inorganic micro-powder, the polyethylene matrix microporousmembrane can be enhanced, so that the thermal shrinkage performance of the polyethylene matrix microporous membrane is reduced, meanwhile, the graphene material uniformly coated on the surface of thenano inorganic micro-powder can enable lithium ions to be rapidly propagated in the nano inorganic micro-powder, so that the charge-discharge performance of the lithium ion battery can be effectivelyimproved, the influence of a coating on lithium ion transmission is reduced, a cross-linked product of sodium alginate has good water retention and water absorption capacity, and the performance of the lithium ion battery diaphragm is improved.
Owner:淮北市吉耐新材料科技有限公司
Preparation method of silk nano globules coating enzyme and application thereof
ActiveCN106822038AHigh activityImprove thermal stabilityPeptide/protein ingredientsAntinoxious agentsBiocompatibility TestingCascade reaction
The invention discloses a preparation method of silk nano globules coating an enzyme. The preparation method comprises the following steps of: S1: preparing a silk solution; and S2: wrapping the enzyme into the silk to form the silk nano globules coating the enzyme. The prepared silk nano globules can be applied to the medical field, and in particular to an antialcoholic drug. The silk nano globules prepared by the method can effectively protect the activity of the wrapped enzyme to realize cascade reactions of various enzymes, and meanwhile have good biocompatibility.
Owner:XIAMEN UNIV
Self-elevating drilling platform cantilever beam sliding device
ActiveCN104264647AImprove safety and reliabilityImprove work efficiencyArtificial islandsUnderwater structuresCantilevered beamReduction drive
The invention relates to the field of mobile type drilling facilities, particularly to a self-elevating drilling platform cantilever beam sliding device. The self-elevating drilling platform cantilever beam sliding device comprises a multi-level planetary reducer and a sliding machine body; a power source which is arranged beside the multi-level planetary reducer drives an internal gear of the multi-level planetary reducer to rotate and the rotating direction can be changed; the sliding machine body is installed on a main deck of a platform; a gear pair is installed inside the sliding machine body; the gear pair is connected with an output shaft of the multi-level planetary reducer; the exterior of the sliding machine body is provided with a driving gear which is driven by an output shaft of the gear pair; the exterior of the sliding body is provided with a rolling wheel assembly; the rolling wheel assembly is arranged above or below the driving gear; a rack is arranged between the rolling wheel assembly and the driving gear in a flat mode; teeth on one side of the rack are engaged with the driving gear; the other side of the rack is matched with the rolling wheel assembly; the rack is fixedly connected with a cantilever beam. The self-elevating drilling platform cantilever beam sliding device has the advantages of being high in safety reliability, large in bearing capability, high in working efficiency and accurate in positioning.
Owner:SICHUAN HONGHUA PETROLEUM EQUIP
A method for improving electrical conductivity of a carbon nanotube composite material
A method for improving electrical conductivity of a carbon nanotube composite material is disclosed. The method includes firstly fully mixing a carbon nanotube dispersion into a polymer solution to obtain carbon nanotube composite material slurry; mixing electrically conductive nanoparticles into the slurry; mechanically stirring the mixture at a high speed; and reinforcing contact points among carbon nanotubes by utilizing the electrically conductive nanoparticles to obtain the carbon nanotube composite material with improved electrical conductivity. The method reduces influences of carbon nanotube surface modification on electron transmission, significantly improves the rate of decrease of specific resistance when the concentration of the carbon nanotubes in a polymer matrix exceeds a percolation threshold, improves electrical conductivity of the carbon nanotube composite material, and saves the carbon nanotubes.
Owner:BEIJING INSTITUTE OF PETROCHEMICAL TECHNOLOGY
Driving device of gas-electric hybrid vehicle
ActiveCN104816623AGuaranteed stabilityReduce lossesHybrid vehiclesGas pressure propulsion mountingLeft halfPower switching
The invention relates to a driving device of a gas-electric hybrid vehicle. The driving device comprises an electromotor and an engine, wherein the output shafts of the electromotor and the engine are fixedly connected with a left half shaft and a right half shaft of a first differential mechanism respectively, an unilateral bearing is arranged on each of the left half shaft and the right half shaft of the first differential mechanism, and a driven gear on the first differential mechanism gear rack is connected with a variable-speed gear. The driving device is reasonable in structure design, convenient to use, high in force transmission efficiency, small in energy loss, quick and convenient in power switching, small in switching noise and size and low in costs.
Owner:盖立元
Electric thread sleeve used for steel bar connection and screwing device
ActiveCN108240072AImprove connection efficiencyEasy meshBuilding reinforcementsBuilding material handlingEngineeringRebar
The invention relates to an electric thread sleeve used for steel bar connection and a screwing device. A tooth part is arranged on the outer wall of the thread sleeve. The screwing device comprises arotating motor, a driving gear arranged on a spindle of the rotating motor and a gear set arranged between the driving gear and the outer wall of the electric thread sleeve and engaged with the driving gear and the tooth part of the electric thread sleeve. Compared with the prior art, the screwing device is matched with the electric thread sleeve in use, then through rotating of the motor and transmitting of the gear set, the electric thread sleeve rotates, and thus the efficiency of on-site steel bar connection can be greatly improved; and the gear engaging property is good, transmission isstable, noise is small, the influence of the manufacturing error on transmission is reduced, and transmission is stable.
Owner:TONGJI UNIV
Self-ice melting cable used for airport
InactiveCN108109726AReduce transmission impactImprove tensile propertiesClimate change adaptationInsulated cablesCopper conductorCable transmission
The present invention relates to the cable field, in particular to a self-ice melting cable used for an airport. The cable comprises cable cores which are annealing copper conductors, the crosslinkingpolyethylene insulating layers are extruded on the exteriors of the copper conductors, and each copper conductor and each crosslinking polyethylene insulating layer are a cable set. The steel wire ropes used for improving the tensile resistance are braided on the exteriors of the cable sets, a dual-layer metal armored layer is arranged on the exteriors of the steel wire ropes, and a copper wire braided shielding layer is braided on the exterior of the dual-layer metal armored layer. A butyronitrile rubber sheath layer is extruded on the exterior of the copper wire braided shielding layer, anda plurality of heating bodies are all arranged in the stranding center of the cable sets and in the dual-layer metal armored layer and the butyronitrile rubber sheath layer. By utilizing the heatingbodies to heat the cable, not only the cable internal transmission performance stability can be guaranteed, at the same time, the ice on the exterior of the cable can be melted, thereby reducing the influence on the cable transmission.
Owner:新宇电缆集团股份有限公司
Supersonic wave based apron management system
InactiveCN105894139AReduce distractionsAvoid influenceNon-electrical signal transmission systemsSonic/ultrasonic/infrasonic transmissionData controlSupersonic waves
The invention discloses a supersonic wave based apron management system. The system comprises a supersonic reception processor module, an apron data processing server module, a data controller module and a Web client module. Each supersonic reception processor receives supersonic data of aprons, analyzes and processes the data or forwards the data to other supersonic reception processors; the apron data processing server module receives data from the supersonic reception processors, processes the data via programs and stores a result; the data controller controls a data interaction mechanism between an airport control center and apron data processing servers; and the Web client provides an operation interface capable of apron checking and management for workers. According to the system, data is transmitted among the modules of the system by taking high-transmittance supersonic waves as medium, and the apron management system is more stable and more efficient.
Owner:北京五骏蓝天科技有限公司
Construction method for network-on-chip topological structure based on no-buffer router framework
ActiveCN103746913AReduce the likelihood of conflictReduce the impactData switching by path configurationData channelTransfer procedure
The invention relates to a construction method for a network-on-chip topological structure based on a no-buffer router framework. On the basis of a traditional centralized mesh topological structure, each router and adjacent routers in horizontal and longitudinal directions are connected together through bidirectional data channels; all routers in each line and each row are connected together through bidirectional buses to form a redundant centralized mesh-bus structure. For the multiple routers in a single line or row, not only can data be transmitted step by step through mesh lines but also the data can directly arrive at the destination through the buses. Under the condition that conflicts occur due to path selection during the transmission process of data packets, one of the data packets can be transmitted through the buses, and the other data packet can be transmitted through the mesh lines; the two data packets do not deviate from the optimal line, and therefore, the probability that the data packets deflect to other lines or rows is reduced, the influence on the transmission of other data packets is reduced, and the average delay and the energy consumption of the whole network on a chip are reduced.
Owner:BEIJING UNIV OF TECH
A self-propelled pusher robot
ActiveCN113826560BImprove push effectReduce rolling wasteAnimal feeding devicesAnimal scienceDrive wheel
The invention provides a self-propelled feeding robot, which relates to the field of animal husbandry equipment. In view of the problem that the current feeding robot is insufficient in driving force and cannot adapt to the pushing of light feed, resulting in repeated feeding, a rotating shell is provided as the feeding structure for contacting the feed. The active rotation of the rotating shell is used to assist the push and accumulation of the feed, improve the pushing ability of the robot, and reduce the waste of feed rolling caused by the repeated pushing process; including self-propelled platform, rotating shell, guide plate and driving wheel, the rotating shell is cylindrical It is sleeved on the outside of the self-propelled platform, the inner wall of the rotating shell is provided with a ring-shaped guide rail, the guide plate is installed on the self-propelled platform through a lifting mechanism, and the guide plate is connected with at least three sheaves. The driving wheel is connected with the self-propelled platform, and the outer ring of the driving wheel is inscribed on the inner wall of the rotating shell to drive the rotating shell to rotate around the axis.
Owner:济南中科天睿科技有限公司
A gear with anti-vibration and wear-resistant functions
ActiveCN111594599BReduce shockReduce fatigue damagePortable liftingGearing elementsFatigue damageGear wheel
The invention discloses a gear with the function of anti-vibration and wear resistance, which comprises a gear main body, a tooth assembly is arranged on the outside of the gear main body, a connecting convex ring is arranged on the inside of the gear main body, and the gear main body and the connecting convex ring are integrated Structure, the inner side of the connecting convex ring is provided with a buffer inner ring, the middle part of the buffer inner ring is provided with a connecting shaft hole, the inside of the connecting convex ring is provided with a buffer groove, the outer surface of the buffer inner ring is provided with a main buffer block, and the buffer inner ring It has an integrated structure with the main buffer block. The two side walls of the buffer tank are provided with main springs, and the two sides of the main buffer block are pressed against the main springs; the invention uses the designed connecting convex ring and buffer inner ring to be used in gears. When a sudden force is applied, the main buffer block on the buffer inner ring can be used to slide and compress the main spring in the buffer groove, and the elastic force of the main spring can be used for buffering, thereby reducing the impact on the gear when it starts and stops, and reducing the impact of vibration on the gear during operation. Fatigue damage from gears.
Owner:全椒县众联机械有限公司
A kind of km silicon carbide abrasive and its preparation method and use method
ActiveCN104629684BImprove processing efficiencyReduce harmOther chemical processesGear teethCarbide siliconGear drive
The invention provides a KM silicon carbide abrasive and its preparation method and use method. The abrasive comprises the following components: 5-30 parts of emery particles, 10-20 parts of white lead powder, 1-4 parts of calcium hydrogen phosphate, 20~40 parts of engine oil, 20~30 parts of linseed oil, 2~5 parts of sodium silicate, 32~37.99 parts of silicon carbide. The invention has high processing efficiency; little damage to the hard surface gear body; greatly shortens the running-in time of the newly assembled gear and the gear after repair; it is especially suitable for the point, line and surface grinding processing of the high-precision gear transmission line, and can effectively accelerate the grinding of the gear Meshing, reducing the influence of manufacturing and assembly errors on gear transmission, through online grinding processing, except for center moment deviation, pitting peeling, bearing damage, etc., the grinding process of meshing surface points, lines, and surfaces is fast and simple , easy to operate, easy to grasp, and suitable for popularization, which greatly improves the gear transmission accuracy and ensures the smooth production of new and repaired gears. It also has the advantages of no pollution, no influence on the quality of lubricating oil, greatly reducing the vibration frequency of the gear to the allowable range of the design, and no side effects.
Owner:湖北开明高新科技有限公司
Big data network-based signal filtering data transmission system
PendingCN113613253AWill not carryImprove self-protection performancePlatform integrity maintainanceTransmissionComputer hardwareData compression
The invention discloses a big data network-based signal filtering data transmission system, which comprises a signal source access end, a port optical transceiver, a computer, a data operating system, a data compression module, a wireless router, a signal filter, a file cache library, a signal return module, a signal firewall, a data processing module and a wireless transmission module, the signal source access end is used for accessing a light source signal of an external server, the port optical transceiver is used for receiving the light source signal connected with the signal source access end and accessing a signal source to the computer, and the computer accesses a network signal through the port optical transceiver and generates data resources needing to be transmitted at the same time. The data operating system is used for generating data resources needing to be circulated by a computer and can support online modification of the data resources, and the data compression module is used for compressing the data resources generated by the data operating system; and according to the invention, the penetrating power of signal transmission is increased, and the transmission range can be controlled, so that the data transmission safety and the transmission efficiency are improved.
Owner:山西三友和智慧信息技术股份有限公司
High-speed interconnection assembly for 5G communication
InactiveCN112382883AReduces the possibility of getting out of locked pipesEasy to installEngagement/disengagement of coupling partsTwo-part coupling devicesLocking mechanismInterconnection
The invention discloses a high-speed interconnection assembly for 5G communication, and the assembly comprises a first interconnection joint, one side of the first interconnection joint is connected with a second interconnection joint, a pair of locking mechanisms are connected between the first interconnection joint and the second interconnection joint, each locking mechanism comprises an electromagnet, and each electromagnet is connected with the corresponding first interconnection joint. A locking pipeline is connected to the side, close to the second interconnection joint, of each electromagnet, a magnetic suction pipe is arranged in each locking pipeline, an insertion rod is arranged in each magnetic suction pipe, and a limiting connecting block is connected to the second interconnection joint. Through the arrangement of the corresponding mechanisms on the high-speed interconnection assembly, the possibility that the high-speed interconnection assembly is stolen is greatly reduced, the safety of the high-speed interconnection assembly is greatly improved, meanwhile, the influence on 5G base station transmission is reduced, accumulation of a large amount of data is avoided, theinfluence on equipment performance is reduced, and damage to equipment is avoided. Therefore, the loss of a user is reduced.
Owner:嘉兴新博信息科技有限公司
Fiber Optic Connector Assemblies
ActiveCN105137543BReduce sensitivityReduce manufacturing difficultyCoupling light guidesFiberEngineering
Owner:CHINA AVIATION OPTICAL-ELECTRICAL TECH CO LTD
Clutch collar with double power driving system
PendingCN108591288AReduce transmission impactPower transmission is smooth and reliableCouplings for rigid shaftsClutchEngineering
The invention discloses a clutch collar with a double power driving system. The clutch collar comprises a body, wherein the body is in a circular ring shape, an annular groove is formed in the surfaceof the body, and a drive spline is arranged on the surface of an inner hole of the body. According to the clutch collar with the double power driving system, the drive spline is arranged on the surface of the inner hole of the body, and therefore the impact force in the drive process is reduced, the power transmission is stable and reliable, the using effect is remarkable, and the clutch collar is worthy of popularization; and the clutch collar has the advantages of being compact in structure, low in cost, good in manufacturability and convenient to manufacture.
Owner:WUXI ZHENGRUI AUTOMOBILE TRANSMISSION TECH CO LTD
Mechanical trimming device and trimming method
InactiveCN102298975BReduce transmission impactEasy and economical trimmingOperating means/releasing devices for valvesInstrumental componentsEngineeringScrew press
Owner:SHENZHEN MINDRAY BIO MEDICAL ELECTRONICS CO LTD
Modular combined rubber track
A modular combined type rubber track comprises three rubber belts which are arranged in parallel at intervals, wherein the two ends of any rubber belt are connected to form a ring shape, the interval between any two adjacent rubber belts forms a mud escaping groove, pattern blocks are arranged on the outer side faces of the rubber belts, and any pattern block is connected with the three rubber belts; bumpers are arranged on the pattern blocks, and more than two first blocking teeth are arranged on the inner surface of the rubber belt located on the front side in the circumferential direction of the rubber belt in parallel at intervals. The non-steering system is suitable for a wheel train vehicle driven by 6 * 4 double rear axles, the rubber track is flatly laid in the direction of two wheels on the single side of the non-steering system to form a similar anti-skid chain form, and operation is achieved through tire power. According to the structure, the tires are fully wrapped by rubber, so that the damage to a paved road surface can be reduced, the trafficability of a vehicle on a complex road surface is improved, the vehicle can pass through the complex road surface more easily, the running noise can be reduced, and the comfort of a driver is improved.
Owner:SHANGHAI HUAXIANG RUBBER TRACK
Generation grouped cross-random linear network coding method
InactiveCN101800624BImprove encoding speedImprove decoding speedError preventionInformation sharingLinear correlation
Owner:XIDIAN UNIV
Signal processing method and device
ActiveCN104917712BReduce transmission impactWorkaround for not working with OFDM symbolsError preventionChannel estimationSignal onFrequency reduction
The invention discloses a signal processing method and device, belonging to the technical field of communication. The device includes: a signal acquisition module, a matrix calculation module and a signal calculation module. The method includes: setting each sampling point signal on the orthogonal frequency division multiplexing OFDM symbol, and acquiring an input signal; calculating a constraint matrix according to channel characteristics of frequency selective fading; according to the sampling point signal, the input signal and the The constraint matrix computes the output signal. The device includes: a signal acquisition module, a matrix calculation module and a signal calculation module. The invention solves the problem that the transmission of OFDM symbols is affected by frequency selective fading, the constraint matrix obtained according to the channel characteristics of flat fading is not suitable for OFDM symbols, and achieves the effect of reducing the influence of frequency selective fading on the transmission of OFDM symbols.
Owner:HUAWEI TECH CO LTD
Blockchain single-chain message double-division construction method
PendingCN112929405AProtection securityEfficient circulationUser identity/authority verificationDatabase distribution/replicationData controlDistributed computing
The invention relates to a blockchain single-chain message double-division construction method, and the method comprises the following steps: constructing a double-division message body with a single-chain message and an association chain message in an object form, encrypting the message body to ensure the security of the message body, controlling the access and operation of the message body through an authentication mechanism, and establishing a data control mechanism based on a flow mode; therefore, the data concurrence and efficient circulation under the condition of large data volume are ensured while resources are saved, and a unified message system which is light in weight, high in performance and controllable and credible in message content is constructed through the method.
Owner:上海零数众合信息科技有限公司
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