84results about How to "Reduce the risk of interference" patented technology

The invention is applicable to the field of cognitive radio and provides a cognitive radio frequency spectrum sharing method and a cognitive radio frequency spectrum sharing system. The method comprises the following steps of: building an individual sequence for an authorized user and a cognitive user respectively; dividing a held frequency spectrum into N isostructural individual frequency points; distributing all individual frequency points to the authorized user or the cognitive user for use, wherein each channel is only distributed to one authorized user or cognitive user for exclusive use at any time; and recovering the channel to perform channel distribution for the next time after the authorized user or the cognitive user completes the service, wherein the value of N can be preset and corrected according to requirements. In the embodiment of the invention, a central control scheme is adopted, and the dependence of other schemes on aspects such as a network topology structure and the node density of the cognitive user is avoided. Meanwhile, the problem of the low service quality of the cognitive user in the conventional frequency spectrum sharing method is solved.

The invention relates to a cooling device, which comprises a cooling fin group, a first heat pipe, a second heat pipe and a centrifugal fan, wherein the centrifugal fan is provided with an air outlet; the cooling fin group is arranged at an air outlet of the centrifugal fan; the first heat pipe comprises a first evaporating section in thermal contact with an electronic element and a first condensing section extending from the first evaporating section; the second heat pipe comprises a second evaporating section in thermal contact with another electronic element and a second condensing section extending from the second evaporating section; the first condensing section is thermally connected with the cooling fin group; and the second condensing section is lapped with the first heat pipe and is in thermal contact with the first heat pipe. According to the cooling device disclosed by the invention, the second heat pipe is lapped on the first heat pipe, number of cooling modules can be reduced, height and length of the cooling fin group can be reduced, cost is saved, and weight of an electronic device is lightened. The invention also relates to the electronic device using the cooling device.

An embodiment of the invention discloses an intensive networking method. The intensive networking method includes steps of selecting micro-base stations meeting preset conditions from micro-base stations as micro-base station coordinators according to information of the micro-base stations in an acquired preset area; setting the micro-base stations as the coordinators as cluster heads, utilizing the other micro-base stations in the preset area as cluster members and establishing an intensive network, wherein the cluster heads are used for transmitting information to the cluster members. The embodiment of the invention further discloses a terminal device. By the aid of the intensive networking method and the terminal device, a cluster is organized by the micro-base stations in the preset area, and the cluster heads transmit information to the cluster members, so that expense of interface control signaling and pilot frequency and interface risk among the base stations are reduced.

The invention discloses primers and a probe composition for detecting an ass-derived component, a horse-derived component and a bovine-derived component in cosmetics, as well as a kit comprising the primers and the probe composition, wherein the primers comprise a pair of universal primers, the probe composition comprises four Taqman probes, and the nucleotide sequences of the primers and the probe composition are shown as SEQ ID NO.1-7. The invention further discloses a multiplex fluorescence PCR detection method for detecting the ass-derived component, the horse-derived component and the bovine-derived component in the cosmetics. The multiplex fluorescence PCR detection method comprises the following steps: taking a to-be-tested sample, extracting the DNA, carrying out PCR amplification on the DNA by utilizing the primers, the probe composition or the kit, collecting fluorescence signals, and determining that whether the to-be-tested sample contains the ass-derived component, the horse-derived component and the bovine-derived component or not according to the fluorescence signals. With the adoption of the detection technology, the false negative result during the PCR reaction can be effectively avoided, and the detection technology has the advantages of being accurate, stable, easy to operate, extremely high in sensitivity, strong in specificity, and the like.

The present invention relates to a wireless network 30; 60 including at least two subnets 31-34; 61-63. Each subnet comprises a plurality of units 21, 22 configured to wirelessly communicate with each other. The wireless network is configured to select a local set of communication parameters CP1, CP3 for internal communication within each subnet in such a way that internal communication within neighboring subnets uses different local sets of communication parameters to prevent interference between neighboring subnets, and to select at least one common set of communication parameters CP2 for each subnet to be used when communicating between subnets in the wireless network 30; 60. The invention also relates to a method for adapting a wireless network, a method for forming a wireless network and a communication unit.

The invention discloses a primer probe composition for identifying sources of animals including donkeys, horses and foxes. The primer probe composition comprises a pair of general primers, three special TaqMan probes, a competitive type interior label and a special TaqMan probe of the competitive type interior label. The invention further discloses a kit comprising the primer probe composition and a multiplex real-time fluorescence quantitative PCR detecting method. The primer probes are high in specificity and sensitivity, whether source ingredients of three animals including the donkeys, the horses and the foxes are contained in a sample or not can be detected, false negative can be effectively indicated, the detection accuracy is improved, and a new way is provided for authentication searching of the source ingredients of the multiple animals in skin, meat and processed products of the skin and the meat.

The present invention relates to a wireless network 30; 60 including at least two subnets 31-34; 61-63. Each subnet comprises a plurality of units 21, 22 configured to wirelessly communicate with each other. The wireless network is configured to select a local set of communication parameters CP1, CP3 for internal communication within each subnet in such a way that internal communication within neighbouring subnets uses different local sets of communication parameters to prevent interference between neighboring subnets, and to select at least one common set of communication parameters CP2 for each subnet to be used when communicating between subnets in the wireless network 30; 60. The invention also relates to a method for adapting a wireless network, a method for forming a wireless network and a communication unit.

Disclosed is an anti-interference method and system for an on-board millimeter-wave radar. The anti-interference method includes the steps that 1), during driving of a vehicle, a master transmitter of the on-board millimeter-wave radar transmits millimeter waves according to a certain period, and wavelength of the millimeter waves is controlled by a wavelength controller; 2), a receiver of the millimeter-wave radar receives the millimeter waves reflected by obstacles ahead, and wavelength analysis of the millimeter waves is performed through a wavelength analyzer of the millimeter waves; 3), a threshold value b of wavelength variable range is set, and if the wavelength variable range b' of transmitted wavelength y and received wavelength y' is smaller than that of the threshold value b, the current radar system is determined to be interfered by surrounding environment or maliciously and artificially attached.

The invention discloses a method for quickly detecting duck-derived components in food, which is a TaqMan probe fluorescent quantitative PCR (polymerase chain reaction) method. The method comprises the following steps: by using a TaqMan probe containing a DNA (deoxyribonucleic acid) template to be detected, a recombinant plasmid containing positive amplification internal standard DNA and the positive amplification internal standard DNA as well as an IL-2 gene amplification primer and a TaqMan probe for ducks, performing fluorescent quantitative PCR reaction; and performing analysis processing on the results by using ABI7500 Software SDS1.4, wherein the amplification of which the Ct value is less than 36 is taken as a positive detection result. The method firstly proposes that duck-derived components in food can be detected through the fluorescent quantitative PCR method by taking a gene in a karyon as a target gene and adding a competitive amplification internal standard. The method has favorable specificity, can avoid the false negative result by monitoring the PCR reaction in real time, explores a new way to identify animal-derived components in food, and has the advantages of accuracy, stability, convenient operation process and the like.

The invention provides a lifting mechanism and a bricklaying robot, and belongs to the technical field of building machinery. The lifting mechanism comprises a first mounting base, a lifting base, a first driving piece and a first transmission assembly, wherein the lifting base is movably arranged on the first mounting base in the vertical direction, a base used for mounting an executing mechanism is arranged on the lifting base, the first driving piece is installed on the lifting base, the first driving piece and the base are located in the same installation face, the first driving piece and the base are arranged in a spaced mode in the left-right direction, the first driving part is in transmission connection with the first mounting base through the first transmission assembly, the first driving part is used for driving the lifting base to move up and down through the first transmission assembly, the first transmission assembly is located on the side, in the left-right direction, of the lifting base, and the first transmission assembly is farther away from the base than the first driving piece. The lifting mechanism of the structure is small in occupied space and can be suitable for more operation environments, the descending position of the base is not limited, and therefore the operation requirements of different heights can be met.

The invention relates to a resetting-operating method of a 51 single chip microcomputer (SCM), in particular to a method for improving the interference resistance of the SCM in a resting-resetting operating mode, belonging to the field of communication engineering. The invention comprises principle and realization methods, hardware realization essentials and software realization essentials, wherein the realization methods comprise an unconditional timing resetting method and an external condition resetting method; and the hardware realization essentials comprise unconditional timing resetting, external condition resetting, resetting cycle and high level resetting time, processing of output terminals, power-on detection and manual resetting. The resting-resetting operating mode of the SCM is realized by the operation of hardware and software, thereby improving the interference resistance. A timer, a special clock chip or other pulse generators are used for generating resetting signals at the set time intervals. The method is especially suitable for monitoring instruments.

The invention relates to a variable band width frequency-shift and frequency-selective digital repeater which comprises a base station, an access machine and a remote machine, wherein the access machine comprises a downlink duplexer, a step attenuator, a downlink frequency shifter, a power amplifier and an uplink duplexer that are sequentially connected with each other in a downlink way; the access machine further comprises a low noise amplifier, an uplink frequency shifter and a downlink duplexer that are sequentially connected with each other in an uplink way; the uplink frequency shifter and the downlink frequency shifter are internally cured with frequency conversion program; the remote machine includes a downlink duplexer, a downlink low noise power amplifier, a downlink digital frequency-shift and frequency-selective module, a downlink companding frequency-shift unit and a downlink power amplifier which are sequentially connected with each other in a downlink way; the remote machine further includes an uplink duplexer, an uplink low noise power amplifier, an uplink digital frequency-shift and frequency-selective module, an uplink companding frequency-shift unit and an uplinkpower amplifier that are sequentially connected with each other in an uplink way; and the uplink and the downlink digital frequency-shift and frequency-selective modules are internally cured with frequency-shift and frequency-selective program. The digital repeater can achieve the aim of controlling band width by the frequency conversion program and the frequency-shift and frequency-selective program, thus having strong noise suppression capability and low frequency interference risk.

The invention relates to automatic mechanical equipment, in particular to a rapid feeding and grabbing device and a feeding method thereof. A mechanical arm of the device is fixedly mounted on one side of a material table of a material taking station through a mounting seat, and a manipulator and a pressing component are fixedly mounted on the mechanical arm. The manipulator comprises a manipulator connecting block used for being connected with the mechanical arm, suction head assemblies, a springback assembly and a rotating motor. A first through hole is formed in the manipulator connecting block and used for allowing the pressing component to press the suction head assemblies. The multiple suction head assemblies are fixedly mounted on suction head fixing blocks with the rotating axis ofthe rotating motor as the axis and the distance between the axis of the pressing component and the rotating axis of the rotating motor as the radius. The pressing component is used for pressing a suction nozzle to the material taking height from the initial height, the springback assembly is used for springback the suction nozzle to the initial height from the material taking height, and the rotating motor is used for switching the suction head assemblies. According to the rapid feeding and grabbing device and the feeding method thereof, the structure of the manipulator is improved, and the equipment with higher material taking efficiency is provided.

The invention discloses a stamping die for an automobile clutch diaphragm spring, which comprises a lower die plate, a padding plate, a chamfering female die and a pressing-down upper die plate, wherein the padding plate is connected on the upper end surface of the lower die plate, the chamfering female die is connected on the upper end surface of the padding plate, a groove for placing the diaphragm spring is arranged on the upper end surface of the chamfering female die, a plurality of chamfering punches are arranged on the chamfering female die, the top ends of the chamfering punches are arranged in the groove, a positioning pin is arranged on the chamfering female die, the position at the top of the positioning pin is higher than the chamfering punches, a punch which can be chamfered is arranged at the top of the positioning pin, the bottom of the positioning pin is connected with one end of the spring, and the other end of the spring penetrates through the padding plate and is connected on the upper end surface of the lower die plate. The stamping die has the following advantages: 1) the chamfered part of a diaphragm are uniform and smooth, the planeness of a product is good,the machining process step is saved, the concentricity of the product is good and the production efficiency is improved; and 2) after chamfering is completed in one process step, the position precision of a special-shaped hole is high, the quality of the product is improved and the cost is saved.

The invention provides an estuary ecological water requirement estimation method based on the response of shellfish coupled biomarkers and belongs to the field of estuary ecological water requirement calculation. The estuary ecological water requirement estimation method comprises the following steps: selecting a type of shellfish scattered within a wide range as the experimental subjects, setting different salinity regions according to a local actual salinity scope, and taking the normal salinity of the estuary as a control salinity region; throwing equal shellfish to the set different salinity regions, measuring the antioxidant system enzyme activity values of samples collected at different points in time and screening out enzyme activity indexes having remarkable response to salinity change; next, standardizing the well-chosen antioxidant enzyme activity values by use of a novel coupled biomarker response method before coupling and determining the salinity region having remarkable difference as a biological response threshold range; and finally, estimating the biological ecological water requirement by use of the difference value of the biological response threshold range and the normal salinity concentration. According to the estuary ecological water requirement estimation method based on the response of the shellfish coupled biomarkers, the shellfish, namely the species having poor motility, is selected and the interference risk is reduced; meanwhile, the research level is promoted to the molecular level and the accuracy of the estuary ecological water requirement calculation is improved.

The invention provides a work arm and an engineering machine. The work arm comprises a telescopic arm and a pipeline guiding device, wherein the pipeline guiding device comprises multistage guide rails, a pipeline box, a drag chain and a drag chain guiding groove, wherein the multistage guide rails are arranged on the telescopic arm along the extending direction of the telescopic arm and comprisemulti-section tracks which are sequentially and telescopically connected; the first-section track in the multi-section track is connected to a basic arm of the telescopic arm; the pipeline box is connected to the tail-section track of the multistage guide rails along the extending direction of the telescopic arm; the first end of the pipeline box is connected with an arm head of a tail arm sectionof the telescopic arm; the first end of the drag chain is connected to the second end of the pipeline box; the drag chain guiding groove is arranged on the basic arm along the extending direction ofthe telescopic arm and is used for bearing the drag chain; the second end of the drag chain is connected to the first end, away from the arm tail of the telescopic arm, of the drag arm guiding groove.The work arm and the engineering machine with the work arm disclosed by the invention have the advantages that the length of the pipeline box is favorably reduced, overall dimension of the pipeline guiding device is reduced, the interference risk of the pipeline guiding device and other structures is reduced and application range is wider.

The invention discloses casing pipe detection equipment based on image recognition. The casing pipe detection equipment comprises a box body, a groove formed in the side face of the box body, a flat plate in sliding fit with the inner wall of the groove and a positioning plate fixedly connected with the inner wall of the groove. The device further comprises a touch sensing device and an elastic buffering piece. The first annular groove is formed in the wall of the groove, an annular track is arranged in the first annular groove, the image acquisition device is in sliding fit with the annular track, and the first driving device is used for driving the image acquisition device to move circumferentially along the annular track; the image acquisition device is used for providing an image source for the image recognition system. The automatic detection device is used for solving the problems that in the casing production process in the prior art, the automation degree of male buckle end detection is low, the labor intensity is large, and missing detection and false detection are prone to occurring, and the purposes of improving the automation degree of casing detection and reducing influences on field casing operation and well logging operation are achieved.

The invention relates to an optical lens. The optical lens comprises a first lens, a second lens, a third lens, a fourth lens and a fifth lens, wherein the first lens has negative focal power, the object side surface of the first lens is a concave surface, and the image side surface of the first lens is a concave surface; and the first lens, the second lens, the third lens, the fourth lens and thefifth lens are sequentially arranged from the object side to the image side so as to form an optical lens with high resolution, small aperture and large camera shooting range. Meanwhile, the opticallens can meet a requirement of miniaturization.

The invention discloses a method and system for analyzing thermal runaway gas production of hydrofluoric acid-containing lithium ion battery, relates to a lithium ion battery, and aims to solve the problem that a large amount of sample gas needs to be consumed in the process that a special gas absorption cell needs to be filled with gas and air in the gas absorption cell needs to be completely exhausted in a spectral absorption test. According to the method for analyzing the thermal runaway gas production of the lithium ion battery containing the hydrofluoric acid, the sample gas is transferred by adopting a two-step method, so compared with the prior art, the use amount of the sample gas is effectively reduced, and a gas production analysis result is prevented from being interfered. According to the invention, the gas sampling, detection and tail gas treatment are continuously carried out, and the convenience and safety of sample gas transfer are improved.

The invention relates to the technical field of electronics, and provides a reciprocity principle-based electromagnetic interference evaluation simulation method and computer equipment, wherein the method comprises the steps: obtaining an excitation signal, wherein the excitation signal is a simulation signal emitted by an excitation source arranged at a receiving antenna through the receiving antenna; adopting a preset simulation module to calculate interference current excited by the excitation signal at a monitoring point, wherein the monitoring point is located on a transmission path of an interference signal emitted by an interference source, and the simulation module is a module for calculating the current at the monitoring point; determining whether the interference current exceeds a preset interference current threshold; and if the interference current exceeds a preset interference current threshold, determining that the receiving antenna is interfered by the interference source when the interference source transmits a signal. The method can shorten the research and development period and reduce the research and development cost.

The invention discloses a reverse transcription primer pool for removing rRNA, a kit and a method for removing the rRNA. The sequences of the reverse transcription primer pool are as shown in SEQ ID NO:1-21. The kit comprises the reverse transcription primer pool. Reverse transcription primers covered with different densities are designed by using rRNA sequences shared by eukaryotes; specific reverse transcription is performed according to the difference of the rRNA sequences in RNA needing to be removed specifically, so that cDNA sequences completely and reversely complementary with target RNA are obtained; rRNA and cDNA of a hybrid chain are specifically digested through subsequent RNase H and DNase I; and finally the rRNA is removed. According to the method, a library kit can be established and finally a transcriptome library with the sufficiently high concentration is obtained, thereby effectively implementing wide application of transcriptome sequencing in the fields of basic research, clinical diagnosis, drug research and development and the like.

The invention relates to an inclined strut type overrunning clutch. The inclined strut type overrunning clutch comprises an inner ring, an inner retainer, a wave spring, an outer retainer, an outer ring and wedge blocks, and further comprises an adjusting block, the adjusting block is hinged to one retainer and is in transmission connection with the other retainer through a driving structure, andthe driving structure comprises a guide column and a guide rail part which are in guide moving fit; and the gravity center of the adjusting block is located on the corresponding side of the connectingline of a hinge shaft and the guide column, when the inclined strut type overrunning clutch is in an overrunning working condition, the adjusting block swings around the hinge shaft under centrifugalforce, the two retainers are driven by the driving structure to rotate in a relatively staggered mode, and then all the wedge blocks are driven to synchronously swing towards the direction separatedfrom an inner roller path and an outer roller path. The elastic acting force applied to the wedge blocks by the wave spring can be effectively counteracted, the actual pressure of the wedge blocks onthe inner roller path is reduced, the friction resistance is reduced, the abrasion of the acting surfaces of the wedge blocks can be effectively reduced, and the performance of the overrunning clutchis improved.

Provided are a method and arrangement (600) in a first network node (120-1) for managing handover of user equipment (110) from the first network node (120-1) to a second network node (120-2). The method and arrangement (600) comprise transmitting (501) a handover message to the user equipment (1 10), wherein handover message triggers the user equipment (1 10) to perform the handover, and to establishing (502) a limit related to the amount of retransmissions to be made. Further the method and arrangement (600) comprise interrupting (503) scheduling of resources to the user equipment (110) and inhibiting further retransmissions of the handover message, when either the established limit is reached, or an indication that the user equipment (110) has left the first cell (130-1) is received. Also, a method and arrangements (800) in a in a second network node (120-2) are disclosed.

The invention relates to a sheet-forming device (1) for producing a two-layer or multilayer fiber web (2) from at least two fiber suspensions (3), at least comprising a first screen (4) onto which a first, preferably single-layer headbox (5) applies a first layer (6) of fiber suspension (3) and which is guided together with the applied layer (6) of fiber suspension (3) via a stationary screen table (7) and multiple dewatering elements (8); a second headbox (9) that applies a second layer (10) of fiber suspension (3) onto the first fiber suspension (3) layer (6) that rests on the first screen (4); and a second screen (11) which forms a double screen zone (12) with the first screen (4) at least along some sections, said zone having a wedge-shaped inlet gap (13). The sheet-forming device (1) according to the invention comprises a dewatering element (17) on the lower face of the first screen (4) in the application region (B), preferably upstream of where the second layer (10) of fiber suspension (3) is applied onto the first layer (6) of fiber suspension (3), when seen in the running direction (S) of the screen, said dewatering element guiding the first screen (4) and having a guiding surface (17.A) that bends downwards at a bend angle (17.W) = 1°, preferably = 2°, in particular = 3°. The sheet-forming device further comprises at least one inlet strip (21) which is arranged in the region of the wedge-shaped inlet gap (13) and / or downstream of the region of the wedge-shaped inlet gap (13), when seen in the running direction (S) of the screen, said strip being supported by means of at least one flexible element (22) and being pressable with a selectable force (22.F) against the first screen (4) and / or against the screen sandwich formed by the two screens (4, 11) and the layers (6, 10) that lie between said screens.

The invention provides an embedment type nut used for a drilling jumbo propeller. The embedment type nut comprises a U-shaped aluminum alloy beam and an oil pipe support, and further comprises embedment type nut bodies and bolts. The oil pipe support is fixed to the U-shaped aluminum alloy beam through the embedment type nut bodies and the bolts. The embedment type nut bodies are installed on the inner side of the U-shaped aluminum alloy frame. Each embedment type nut body comprises a flat part and a protruding part. Compared with the prior art, the embedment type nut bodies are installed on the inner side of the U-shaped aluminum alloy frame, the installation direction of the bolts is changed, and therefore parts needing to be fixed are made independent. Compared with installation achieved through ordinary nuts, the distance by which the embedment type nut bodies protrude from the inner surface of the U-shaped aluminum alloy beam is short, and the risk of interference with oil cylinders and other movement parts is effectively lowered. The embedment type nut is simple in structure and convenient to install and maintain.

The invention provides a method and a device for setting protection interval, and a base station. The method comprises the following steps: acquiring one or more of transmission delay, time advance and distance of a plurality of terminals connected to a base station relative to the base station; clustering the terminals according to one or more of the transmission delay, time advance and distance to get at least one cluster, wherein each cluster includes at least one terminal; and setting the configuration information of the protection interval of a scheduling sub frame corresponding to each cluster according to the longest transmission delay or the maximum time advance or the greatest distance corresponding to the terminals in each cluster. According to the method, the base station clusters the terminals according to the transmission delay, time advance and distance of the terminals relative to the base station. The length of protection interval can be configured flexibly. The system cost and the risk of inter-station interference in the system are reduced. The round-trip delay is reduced. The user experience is improved.