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 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.

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 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 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 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.

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 a door fitting and a clothes treating apparatus; the door fitting comprises: a door; and a positioning part, arranged on the door, wherein the bottom of one end, far away from the door, of the positioning part is provided with a guide inclined plane, and the guide inclined plane obliquely extends upwards along the direction far away from the door and is used for being matched with a box to fix the relative position of the door fitting and the box. The positioning part is additionally arranged on the door, the relative position of the door fitting and the box is positioned through the matching of the positioning part and the box, and therefore, the position accuracy of the door fitting and the box in the door closing process is guaranteed, the situation that the dooris difficult to close since a locking part and the box are staggered due to the drooping of the door fitting is prevented, and the user experience is improved.