33results about How to "Reduce the number of branches" patented technology

The present invention relates to a method for extracting characters in images, which comprises the following steps: candidate break point assembles are set up aiming to all characters in the same row in images at a candidate text region, and comprise a left break point assemble and a right break point assemble; on the basis of every left break point, corresponding right break points are searched in a estimated interval to generate candidate break sets; word recognition is made for the candidate break sets; and the recognition results of the candidate break sets are filtered by recognition price according to the positions of the candidate break sets. The present invention also discloses a device for extracting the characters in the images.

The invention relates to a six-freedom-degree parallel mechanism with a reversible moving platform. The six-freedom-degree parallel mechanism comprises a fixed platform, a moving platform, a first branched chain, a second branched chain, a third branched chain and a fourth branched chain. One end of each of the three branched chains is connected to the moving platform with a sliding groove, and the other end of each branched chain is connected to the fixed platform; and one end of the rest branched chain is connected to the fixed platform in an annular structure, the other end of the rest branched chain is connected to the moving platform through a spherical hinge, and the whole branched chain can rotate around the moving platform and other branched chains without interference. The six-freedom-degree parallel mechanism with the reversible moving platform has the advantages that the relative position of the branched chains is changed through the compound motion of each branched chain, the function of overturning the moving platform is realized, and the upper surface and the lower surface of the moving platform can alternately work, such that the working space is enlarged, and the working mode of the mechanism is enriched; and the four branched chains are used for controlling the mechanism to maintain six degrees of freedom, the number of the branched chains is reduced on the premise of ensuring the working performance, the structure is simplified, and the assembly is simpler and more convenient. The six-freedom-degree parallel mechanism with the reversible moving platform can be applied to working environments such as flight simulation which need multiple degrees of freedom and high precision.

The invention discloses a binary vector construction method for improving corn amylose content by utilizing genetic engineering. The binary vector construction method comprises: designing a primer to amplify the ninth extron and intron part sequence (315bp) and the ninth extron antisense sequence (155bp), and also to amplify sbe2b promoter, simultaneously linking an integrated DNA fragment containing sense and antisense extrons and introns and the promoter into multiple cloning sites (MCS) of a pCAMBIA3301 carrier; and then replacing 35S and GUS fragments of the pCAMBIA3301 carrier containing sbe2b RNAi three fragments in MCS by a ss1 promoter fragment and a ss1 gene cDNA fragment, so that the expression carrier contains both antisense sbe2b cDNA fragment controlled by sbe2b promoter and ss1 full-length cDNA fragment controlled by ss1 promoter. The sbe2b RNAi fragment contained in the expression carrier provided by the invention is capable of reducing activity of SBEIIb enzyme and reducing branch number when starch is synthesized, and thus the relative content of amylose is improved; and also the ss1 gene expression fragment contained in the carrier is capable of improving the activity of corn endosperm SSI enzyme, and thus the total starch content is improved.

The invention relates to ternary fluorine-containing resin as well as a preparation method and an application thereof. The fluorine-containing resin is a trifluoropropene terpolymer and has a structure shown in formula (I), supercritical carbon dioxide is used as a medium, a perfluoroalkoxy peroxide oligomer is used as an initiator to initiate copolymerization of vinyl acetate and trifluoropropene, and then part of ester groups are hydrolyzed. A fluorine-containing hollow fiber membrane with the lasting hydrophilic property is prepared by general hollow fiber membrane preparation equipment with a dry-wet method to be used as a water separation membrane, the hydrophilic property of the separation membrane is improved greatly, the adsorption to substances such as protein and the like in the separation process is reduced, and the anti-pollution capacity of the membrane is improved.

The invention relates to glucan for preventing and treating hypertension and orally-taken yeast cell wall extract. The component, for preventing and treating hypertension, of the glucan is a beta-1,3-1,6 glucan unit with a specific branch structure. The glucan is obtained by orally taking the yeast cell wall extract, the yeast cell wall extract contains 75-95% of beta-1,3-1,6 glucan, the branch chain of the glucan is of a long branch chain structure, the content of the branch-chain glucose accounts for 18% or above of the total quantity of the glucan, a person orally takes 0.005-0.05g/kg bodyweight of the yeast cell wall extract every day during hypertension prevention and treatment, the effect can be seen in one month, and the person needs to continuously take the yeast cell wall extractfor at least 6 months. The glucan has a definite and stable hypertension prevention and treatment effect, the orally-taken yeast cell wall extract can be absorbed by the intestinal tract to allow thehuman body to obtain the beta-1,3-1,6 glucan branch structure, in-vivo lesions which can be detected or cannot be detected can be treated in a broad spectrum manner, and an evident prevention and treatment effect is achieved.

The invention relates to a radio frequency signal response method, a responder and a radio frequency recognition system, belonging to the radio frequency recognition technical field. The radio frequency signal response method comprises: receiving a failure command from an interrogator; judging if the value of a counter of the responder is an answer value, if it is the answer value, generating a random number in the range appointed by the failure command; judging if the generated random number is a preset value, if it is not, refreshing the value of the counter in the responder, while the refreshed value of the counter of the responder is different from the prior value of the counter in the responder queue; if it is a preset value, holding the value of the counter of the responder. The technical scheme can avoid changing the value of the counter of the responder, while the value is not the answer value, to reduce the processing load of the responder and improve the performance of the radio frequency recognition system.

The invention provides a method and device for configuring a web request. The method comprises the steps: acquiring the web request, recognizing whether the web request uses a default protocol or not,if not, configuring the current request according to a set format, and during system compiling and packaging, reading a configuration file, and writting read data into a given directory of a corresponding project; installing and deploying the system to a server, and starting web container service; when looging in a web terminal, searching for a configuration file under a given directory of a project, reading the file, initializing file data into a memory, and defining a hash table for storage; and monitoring a web request initiated by a client, determining a protocol type, and forwarding therequest according to the protocol type. Only one system code needs to be maintained, the customization requirements of different clients are met, the number of code branches and the development costof company maintenance personnel are reduced, in the development process, the rapid adaptation process can be completed according to the requirements of manufacturers, and the working efficiency is improved.

The invention discloses a parallel-connection mechanism including a suitable constraint branched chain and a compound driving branched chain. The parallel-connection mechanism comprises a fixed platform, a moving platform, a first branched chain, a second branched chain and a third branched chain, wherein the parallel-connection mechanism has a freedom degree of transitional motion at three timesand rotation at two times. The parallel-connection mechanism disclosed by the invention has the advantages that firstly, through arrangement of two groups of driving assemblies, compound driving of the branched chain is realized, so that the quantity of branched chains is reduced, interference is reduced, and a working space of the mechanism is widened; and with comparison with a conventional compound driving way such as the way of directly driving revolute pairs, the compound driving way mentioned in the invention has the advantage that the control difficulty is reduced; secondly, by adoptingcooperation between a suitable constraint active branched chain and the compound driving branched chain, the mechanism is wholly plane-symmetrical, uncontrolled errors of the moving platform can be effectively reduced, the kinematics and the kinetics performance of the plane-symmetry can be achieved, and the isotropic performance is improved; and finally, the compound driving branched chain selects a plate-shaped rod, and by comparing with a conventional telescopic rod, the plate-shaped rod adopted by the mechanism disclosed by the invention can enhance the radial rigidity of the branched chains, enhance the bearing capacity of the mechanism, and improve the motion stability.

The invention discloses a four-degree-of-freedom complete decoupling compound drive parallel mechanism. The four-degree-of-freedom complete decoupling compound drive parallel mechanism comprises a base, a movable platform, a first branch chain, a second branch chain and a third branch chain, and has three translational degrees of freedom and one rotational degree of freedom. The four-degree-of-freedom complete decoupling compound drive parallel mechanism has the following advantages that each of four degrees of freedom of the mechanism is completely controlled by a single kinematic pair, so that complete decoupling is realized, and theoretical analysis of the mechanism and development of a control system are greatly simplified; the branch chains of the mechanism on a machine frame adopt two driving pairs and adopt composite driving, so that the number of the branch chains is reduced, the interference among the branch chains is avoided, the number of parts is reduced, and the manufacturing cost is further reduced; and the mechanism adopts a double-parallelogram branch chain to replace a common multi-revolute-pair decoupling branch chain, so that the motion stability is improved, andthe rigidity of the mechanism is improved.

The invention discloses a construction method of a high-yield early-fruiting cedar dwarf clonal seed orchard, and belongs to the technical field of forestry. The construction method comprises the steps as follows: genetic management of the seed orchard, selection of excellent orchard construction clones, construction of a clonal seed orchard and management of seed orchard tree bodies and orchard plots. Compared with the prior art, the construction method disclosed by the invention has the beneficial effects that the method can make a cedar improved seed base put into production in advance, increase the seed yield, ensure timely supply of improved seeds, and accelerate the production and breeding process of the cedar improved seeds.

The invention discloses an outdoor robot repositioning method based on Go-ICP. The method comprises the steps of obtaining an existing Go-ICP algorithm; modifying a lower bound used for pruning; in the branching process, the lowest resolution is stipulated, and the number of branches is reduced; if positioning is lost in positioning, calculating a repositioning search range and performing repositioning; and adopting the modified Go-ICP algorithm to carry out real-time repositioning of the outdoor robot. According to the method, a cubic search area of the Go-ICP algorithm is converted into a flat cuboid search area, and the search range of the Z axis is reduced; the number of branches of the Go-ICP algorithm is reduced; the relocation search range of the Go-ICP algorithm is determined according to the basic search range, the lost location time and the drift coefficient of the corresponding rotation or translation component, so that the relocation search time based on the Go-ICP algorithm is greatly shortened, the efficiency is high, the search time is short, and the search range is reasonable and reliable.

The invention discloses a low-power-consumption, high-transient-response and off-chip-capacitor-free low-dropout linear regulator. A grid direct-current bias network is used for providing grid bias voltage needed by working of a power amplification transistor. The drain direct-current bias network is used for providing drain bias voltage required by the work of the power amplification transistor; the input end impedance matching network comprises a microstrip line, a blocking capacitor and an RC parallel circuit; the output end impedance matching network comprises a harmonic control network and an elliptical low-pass filtering matching network, and the harmonic control network selects two frequency points outside a passband to perform secondary harmonic control; the elliptic low-pass filtering matching network is obtained by improving a six-order Chebyshev low-pass filter, two transmission zero points are generated outside a working frequency band, and conversion from fundamental wave impedance to second harmonic impedance is achieved. According to the invention, the power amplifier can realize high efficiency and high gain in a super-quintuple frequency working bandwidth.

The invention discloses a selection mechanism for connecting rod sliding reversing. The selection mechanism comprises a driving rod, a first connecting rod, a second connecting rod, a third connecting rod, a driven rod and a steering mechanism, wherein the driving rod is simultaneously hinged to the first connecting rod and the second connecting rod; the middle of the first connecting rod is hinged to a fixed bracket, and the other end of the first connecting rod is hinged to the third connecting rod; the other end of the third connecting rod and the other end of the second connecting rod are crossed and are simultaneously connected with the steering mechanism; the steering mechanism comprises a main node, a first welding body and a second welding body are arranged on the two sides of the main node, the outer sides of the first welding body and the second welding body are respectively connected with a first clutch rotating disc and a second clutch rotating disc, a first through hole for the third connecting rod to pass through is formed in the first clutch rotating disc, and a second through hole for the second connecting rod to pass through is formed in the second clutch rotating disc; shaft locking devices are respectively arranged in the first through hole and the second through hole. The selection mechanism has the benefits that the reversing can be realized by the rods, the operation is simple and convenient, and the selection mechanism can be used on a device of which a rod is required for reversing.

The invention discloses an N-x rapid topology analysis method and system and a readable storage medium, and the method carries out the classification processing of different switching-on and switching-off power grid equipment, does not need to carry out the whole network topology analysis once again when one piece of equipment is switched on and off, can judge which type of topology change the switching-on and switching-off belongs to in advance when a line, a transformer and a unit are switched on and off, and improves the efficiency. According to the method, unnecessary repeated topology analysis can be greatly reduced, only local modification is needed, and the calculation efficiency is improved; according to the method, the number of nodes and the number of branches needing to be searched for in topology analysis are greatly reduced, a new calculation model can be constructed according to splitting of an original node branch calculation model, and the efficiency of complex fault topology analysis and online analysis calculation is effectively improved.

The invention discloses a parallel mechanism with a composite sliding telescopic rod. The parallel mechanism with the composite sliding telescopic rod comprises a fixed platform, a movable platform, afirst branch chain, a second branch chain, a third branch chain and a fourth branch chain, and has three translational degrees of freedom and two rotational degrees of freedom. The parallel mechanismwith the composite sliding telescopic rod provided by the invention has the advantages that on one hand, the composite sliding telescopic rod branch chains are adopted, the number of the branch chains of the mechanism is reduced, and interference is reduced, so that the flexibility of the mechanism can be improved, the working space of the mechanism is enlarged, and the mechanism can complete more complex movement relative to a single telescopic rod mechanism; and on the other hand, the three sliding telescopic rod branch chains with the same structure are adopted, so that the transmission efficiency of the mechanism in the vertical direction can be improved, the structure is simple, assembling is easy and convenient, and the manufacturing and machining difficulty is lowered. The parallelmechanism with the composite sliding telescopic rod provided by the invention is suitable for part machining and assembling and other machining environments needing multi-degree-of-freedom and high flexibility.

The invention relates to a voice wake-up method and device, a storage medium and electronic equipment, and aims to reduce false wake-up and system operation overhead. The voice wake-up method comprises the steps of acquiring multiple paths of voice signals; inputting the multiple paths of voice signals into a voice wake-up model to obtain voice wake-up results corresponding to the multiple paths of voice signals, wherein voice wake-up model is used for determining signal weight values corresponding to the multiple paths of voice signals, and according to the signal weight values corresponding to the multiple paths of voice signals, performing fusion processing on the multiple paths of voice signals to obtain a target voice signal, and according to the target voice signal, determining a voice wake-up result corresponding to the multiple paths of voice signals.