144results about How to "Improve build speed" patented technology

This invention relates to processes and systems of rapid prototyping and production. Its features includes flexible material deposition along tangential directions of surfaces of a part to be made, thereby eliminating stair-shape surface due to uniform horizontal layer deposition, increasing width of material deposition to increase build up rate, applying the principles of traditional forming / joining processes, such as casting, fusion welding, plastic extrusion and injection molding in the fabrication process so that various industrial materials can be processed, applying comparatively low cost heating sources, such as induction heating and arc-heating. Additional features include varying width and size of material deposition in accordance with geometry to be formed and applying a differential molding means for improved shape formation and surface finishing.

The invention discloses a method for constructing an enterprise knowledge map from a multi-source data integration perspective, wherein the construction of the knowledge map comprises a data acquisition, a knowledge fusion and a knowledge processing storage process, and an application retrieval system based on the enterprise knowledge map is designed. The invention has the beneficial effect that the knowledge map facing the enterprise domain can be quickly constructed from the angle of realizing the integration of the multi-source heterogeneous data by constructing the domain ontology and theKarma modeling, the construction speed of the domain knowledge map is improved, and the construction cost of the knowledge map is saved. The constructed enterprise knowledge map integrates the enterprise data stored in the government department and the enterprise data on the Internet efficiently, integrates the isolated data nodes into a unified knowledge base, and provides a user-friendly enterprise information service platform for users.

The invention provides a 12-bit intermediate-rate successive approximation type analog-digital converter and relates to the field of analog-digital converters. The 12-bit intermediate-rate successive approximation type analog-digital converter comprises a sampling network, a differential capacitor array connected with the sampling network, and a comparator circuit connected with the differential capacitor array, wherein the differential capacitor array comprises a first capacitor array connected with the positive-phase input end of the comparator circuit, and a second capacitor array connected with the negative-phase input end of the comparator circuit; both the first capacitor array and the second capacitor array are composed of 11 groups of binary-structured bit capacitors, and the bottom plates of the redundant capacitors of the second capacitor array are constantly connected with a common-mode voltage VCM. The 12-bit intermediate-rate successive approximation type analog-digital converter solves the problems of large capacitor area and high power consumption of a traditional binary capacitor type structure.

The invention is suitable for the technical field of a computer and provides a method and system for dynamically establishing an indoor positioning fingerprint database. The method comprises the following steps: A) collecting RSSI values of APs on a single wireless channel one by one along a preset moving path and recording position coordinates when the single wireless channel acquisition is finished; B) carrying out the step A) repeatively based on fingerprint sample collecting times preset in advance; C) dividing the moving path, obtaining coordinates of central positions of all fingerprint samples in a preset range with each dividing point being the center, and setting the coordinates of the central positions to be the position coordinates of the all fingerprint samples; and D) calculating the average value of the RSSI values of the fingerprint samples with the same position coordinates, the same wireless channel identification and the same AP identification, and storing fingerprint samples formed by the same position coordinates, the same wireless channel identification, the same AP identification and the RSSI average value obtained by calculation to the indoor positioning fingerprint database, thereby improving the establishing efficiency of the fingerprint database.

This invention discloses a method for setting up label switch path of MIPLS VPN tunnel including: a label switch router LSR in a network determines the forward equivalence FEC corresponding to the destination IP address of the MPLS VPN tunnel to distribute label to it firstly and set up a binding relation between the FEC and the distributed label and notifies the binding relation with the prior label to its upper reach LSR, which receives the binding relation notified by the lower reach LSR to process the binding relation with the prior label priorly. This invention also discloses a LSP set-up system and a device of the MPLS VPN tunnel.

The invention discloses a data transmission method, a data transmission device and a mobile terminal, belonging to the field of a terminal technology. The method comprises the steps of receiving a data transfer instruction used for transmitting an appointed file through first terminal equipment; detecting a sound state of the first terminal equipment, and generating appointed handshaking information according to the sound state; transmitting the appointed handshaking information through the first terminal equipment according to the appointed file to enable second terminal equipment and the first terminal equipment to establish data connection according to the appointed handshaking information; and transmitting the appointed file to the second terminal equipment through the data connection between the first terminal equipment and the second terminal equipment. According to the data transmission method, the data transmission device and the mobile terminal, operation in the data transmission process can be simplified, establishing speed of the data connection can be improved, and unnecessary time delay can be avoided.

This invention provides a loading control method for service data flow including: PCEF gets an accumulation set of service data flow to judge if said accumulation of the service data flow can be multiplexed onto the load and loads th accumulation onto the related load based on the judgement result, which can reduce load information volume maintained by related entities and save storage and process resource of a system.

The invention relates to the field of wireless communication and discloses a method for establishing and triggering calls of a circuit domain and a system and a device thereof, which can reduce the time delay of the establishment of business in a CS domain. In the invention, during eNodeB plus in an evolution network processes a call issued by UE, if the call is confirmed to be the call of the CS domain, information required by UE to establish the call of the CS domain is sent to a traditional network where the RNC called by the UE is processed; the RNC then utilizes the information obtained by eNodeB plus to establish the call of the CS domain for UE.

The invention relates to a charge pump system, a method for generating reading and writing operation word line voltage by the aid of the same and a memory. The charge pump system comprises a standby mode charge pump, a work mode charge pump, a controlled switch, a load capacitor, a first voltage division circuit, a second voltage division circuit, a first comparator, a second comparator, an OR gate circuit and an oscillator, the standby mode charge pump is controlled by standby enable signals, the work mode charge pump and the controlled switch are controlled by work enable signals, output ends of the two charge pumps are connected, the load capacitor is respectively connected with the output ends of the two charge pumps and the ground, an output end of the standby mode charge pump is connected with the first voltage division circuit, two ends of the controlled switch are respectively connected with the output end of the work mode charge pump and the second voltage division circuit, the first comparator and the second comparator respectively compare corresponding reference voltages with outputs of the corresponding voltage division circuits, the OR gate circuit controls operation of the oscillator according to outputs of the two comparators, and an output end of the oscillator is connected with input ends of the two charge pumps. By the aid of the charge pump system, the method and the memory, generation speed of the reading and writing operation word line voltage can be increased.

The invention relates to the technical field of a sampling hold circuit in a pipeline analog-to-digital converter and discloses a double-sampling and fully-differential sampling hold circuit which comprises a first differential switched capacitor unit, a second differential switched capacitor unit and a double-folding branch operational amplifier, wherein, the first differential switched capacitor unit and the double-folding branch operational amplifier samples in high-time state at clock signals ph1 and phs and keeps in the high-time state at the clock signal ph2; and the second differential switched capacitor unit and the double-folding branch operational amplifier samples in the high-time state at the clock signals ph2 and phs and keeps in the high-time state at the clock signal ph1. By utilizing the sampling hold circuit of the invention, the output DC offset caused by the out-of-control of the operational amplifier is reduced, the accuracy of the sampling hold circuit is improved and the set-up speed of the sampling control circuit in a hold phase is improved.

The invention discloses a switch-type operation amplifier with low power consumption, which comprises a switch-type operation amplifying circuit, a common mode feedback circuit for providing a common mode voltage feedback signal to the switch-type operation amplifying circuit and a biasing circuit for providing a biasing voltage signal to the switch-type operation amplifying circuit and the common mode feedback circuit. The switch-type operation amplifier is in a manner of first level current mirror, of which the input level load uses an internal positive feedback structure to improve gain and the output level is in wide amplitude AB type; and while the amplifier is not needed to work, two switch tubes are used for closing the amplifying circuit, the biasing circuit and common mode feedback circuit totally; therefore, the power consumption is greatly reduced, and the switch-type operation amplifier with low power consumption can be widely applied to fields of analogue-digital converters, filters and the like.

The invention discloses an imitating method of a power amplifier and an imitating device of the power amplifier. The method adopts an improved back propagation (BP) neural network to imitate the power amplifier. The improved BP neural network adopts Levenberg-marquardt (LM) learning algorithm and training algorithm with momentum factors added to update weight values and threshold values of a model, and therefore model building speed is effectively increased and the model is prevented from being sunk into a local minimum. Disclosed is the imitating device of the power amplifier further. The improved BP neural network is adopted. The imitating device of the power amplifier is further used for building a power amplifier imitator with a parallel structure. Imitation and training are free of mutual interference. Working efficiency of the power amplifier imitator is improved. Compared with the prior art, the imitating method of the power amplifier and the imitating device of the power amplifier are quick in training convergence speed and good in instantaneity.

The invention discloses an ultrahigh-speed successive approximation type analog-to-digital converter, which comprises a sampling switch module, a capacitor DAC module, a comparator module, an asynchronous clock generation module and an SAR logic control module, and is characterized in that the sampling switch module is used for sampling a first input signal and a second input signal and transmitting the first input signal and the second input signal to the capacitor DAC module; the capacitor DAC module is used for storing, maintaining and redistributing the first input signal and the second input signal; the comparator module is used for comparing the signals redistributed by the capacitor DAC module to obtain a comparison result; the asynchronous clock generation module is used for controlling the comparator module to work and reset according to the comparison result; and the SAR logic control module is used for controlling the capacitor DAC module to generate a reference level required by the comparator module according to the comparison result and outputting a final analog-to-digital conversion signal. According to the analog-to-digital converter, the overall speed of the comparator is increased, the quantization correctness is ensured, the quantization rate is increased, and the chip area is reduced.

The invention discloses a method for establishing a communication relationship between oil deposit wells. The method comprises the steps of dividing communication units, wherein a communication area between the oil deposit wells is divided into multiple communication units, the connecting area between every two well points corresponds to one communication unit, and the characteristic parameter of each communication unit comprises an average conductivity and a pore volume; calculating the single-well water-cut, and the single-well water-cut of each well point is calculated according to the average conductivity and the pore volume of each communication unit; calculating production performance indexes, wherein according to the single-well water-cut of each well point, the production performance indexes are calculated; correcting parameters, wherein fitting is conducted on the calculated production performance index of each well point and an actual production performance index of the well point, and then correction is conducted on the average conductivity and the pore volume of each communication unit. By the adoption of the method, mutual action of the wells can be reflected, the conditions that wells are stopped and an oil well is converted into water injection are considered, and the actual geologic features of the whole oil deposit wells are also considered.

The invention provides a time division-long term evolution (TD-LTE) digital trunked communication system and a group service implementing method. The method comprises the steps that an initial terminal sends group set-up requests to a core network; the core network searches a monitoring side cell in a list of a pre-set tracking area according to the group set-up requests, wherein a corresponding monitoring terminal is located in the monitoring side cell; the core network sets initial resources for the initial terminal and sets group resources for an initial side cell where the initial terminal is located and the monitoring side cell; and when the core network receives that group resources responded by a monitoring side base station in the monitoring side cell successfully set up responses, a speaking right is granted to the initial terminal. According to the TD-LTE digital trunked communication system and the group service implementing method, a set-up process of the initial resources and a set-up process of the group resources are executed in a parallel mode, and therefore set-up speed of group services is largely improved, and set-up time delay is reduced.

The invention belongs to the technical field of pipeline analogue-to-digital converters, and relates to a novel Microsoft data access component (MDAC) structure applied to the pipeline analogue-to-digital converter. The MDAC structure comprises an operational amplifier, a first switched capacitor unit and a second switched capacitor unit, wherein each of the first and second switched capacitor units consists of a sampling capacitor CS, a feedback capacitor CF, a load capacitor CL and a switch. In a sampling phase PhiS, the sampling capacitor samples an input signal, and simultaneously the operational amplifier keeps voltage on the feedback capacitor to charge and discharge the load capacitor; in a resetting phase PhiR, the sampling capacitor is suspended, the input end of the operational amplifier is connected with a common mode level Vcomi, the output end of the operational amplifier is connected with a common mode level Vcomo, and the voltage on the feedback capacitor is reset; in a transmission phase PhiT, the operational amplifier performs margin amplification on a sample on the sampling capacitor, and transmits margin voltage; and in a clearing phase PhiC, the two ends of the sampling capacitor are both connected with the common mode level Vcomi, and charges are cleared to prepare for the next sampling. The MDAC structure can reduce the power consumption of the analogue-to-digital converter and increase a conversion rate.

The invention discloses a trunking communication network system, comprising a dispatching desk, at least one radio node TRN, at least one dispatching center TDC, a location register TLR and an administration station AS; the TRN is used for accessing a mobile station MS to the network through an air interface thereof, doing mobility management and calling control for the MS accessed in the TRN, notisfying relative information of the MS accessed in the TRN to TDC, TLR and other TRN, acquiring and storing MS information sent by other TRN; the TDC is used for dispatching control through TRN and TLR in the network according to dispatching of the dispatching desk; the TLR is used for storing relative information of MS, providing information to TRN, assisting TRN to do mobility management for MS; the AS is used for managing and operating MS relative information stored by TLR. The invention also discloses a calling method based on the system.

The invention discloses a fast route setup method, comprising the steps of: A. destination node receives route request packet and packs the routing information carried in the route request packet into a corresponding route reply packet to source node of route request packet; and B. judging whether to be able to transmit the route reply packet: if yes, transmitting the route reply information-carrying packet through intermediate node to the source node and otherwise returning to the step A. And it also provides a fast routing establishing device. When receiving the first route request packet from the source node, the destination node waits for a period of time or collects a certain number of route request packets and packs the collected routing information into the same route reply packet and returns the route reply packet to the source node, thus reducing the number of routing control packets, reducing collision of routing control packets at MAC layer and speeding up routing establishment.

The invention provides an ad hoc network mode security association establishment method which is applied to a requester terminal and an authenticator terminal containing a self-signed certification authority. The method comprises the following steps: the requester terminal obtains a self-signed certificate issued by the self-signed certification authority from the authenticator terminal through an open system link established between the requester terminal and the authenticator and the preset name and password of a user; and the requester terminal uses the self-signed certificate to establish security association with the authenticator terminal. The invention further provides a terminal containing a self-signed certification authority. The invention does not need two rounds of five-time handshake processes to negotiate two groups of unicast keys and multicast keys, reduces the handshake processes of establishing security association, accelerates the security association establishment speed and reduces the terminal power consumption.

This invention provides a link state information transmission method based on a multi-interface route device including: when a first route device sends link state information to a second route device, it tests the sent instruction information and determines the actually needed information and sends it to the second route device, in this invention, a route device can decide if the sent link state information contains repeated information so that the information necessary to be sent actually contains the information un-repeated and should be transmitted so as to avoid repeated transmission of link state information.

The invention discloses an ORB algorithm-based cognitive map construction method. The method comprises the following steps: a robot movement platform detects an external environment, and a visual sensor acquires a visual image and extracts the ORB features of the visual image to construct a local scene cell model; an excitation connection between every local scene cell and a posture cell is established, and a pose cell model controls the stability of an internal pose network through a series of internal activities; path integration of internal mileage information is carried out to estimate thecurrent position of a robot in real time; and a mapping algorithm uses the spatial information characterization of the pose cell model to construct the cognitive map of the environment in real time.The ORB algorithm-based cognitive map construction method can solve a defect that original cognitive map models cannot work indoors, and has high robustness, biological inspiration and practicality.

The present invention provides a method for setting up a playlist for an MTP device. The method comprises steps of: according to a given file type, obtaining a filehandle of a media file with the file type from the MTP device; according to the filehandle, obtaining a farther directory handle of each media file in media files with the file type; and sorting according to the farther directory handle, and obtaining the playlist, wherein the sorting is a continuous sorting for different media files in a same folder, and the playlist is saved. According to the method of the present invention, a setting procedure of the playlist is simplified, a setting speed is increased, and no damage is caused on the media files in the MTP device.

The embodiments of the invention provide a virtual information processing method and device, a piece of equipment and a storage medium. The method includes the following steps: acquiring first image information collected by a shooting device at the previous time; acquiring the feature points in the first image information, and determining the three-dimensional coordinate points corresponding to the feature points in space; tracking the feature points in the first image information, and determining the position information of the feature points in second image information collected by the shooting device at the current time; determining a target plane in the space according to the three-dimensional coordinate points corresponding to the feature points in space and the position information of the feature points in the second image information; establishing a three-dimensional coordinate system according to the intersection point between the optical axis of the lens of the shooting deviceand the target plane; and superimposing virtual information in the second image information according to the three-dimensional coordinate system. The embodiment of the invention enables the terminalequipment to render stable virtual information in the shooting preview interface quickly after the shooting function is activated, and therefore, the user experience is improved.

The invention discloses an iterative construction method and device for a military scenario text event extraction corpus. The method comprises the following steps of 1, preprocessing, and obtaining anoriginal data set represented by a word sequence; 2, constructing a seed data set, defining an event template, constructing an event trigger word dictionary, forming the seed data set through manualannotation, and dividing the seed data set into a seed training set and a test set; 3, training a model, training a machine learning model by using the seed training set, testing the model by using the test set, and optimizing the model parameters according to a test result to obtain a first learning model; 4, selecting an unlabeled training corpus, and inputting the unlabeled training corpus intothe first learning model to obtain a prediction result set; 5, correcting the prediction result set to form a new annotation corpus; and 6, through the continuous iteration, generating the training sets in sequence to form the event extraction corpus. According to the iterative construction method for the military scenario text event extraction corpus, the corpus construction efficiency is improved, the manual annotation cost is reduced, and the relatively higher corpus annotation accuracy is obtained.

The invention discloses a method and a device for creating sparse indexes. For data records to be processed, a same hash function is used for calculating hashed values of key values, the data records are saved into corresponding subareas according to the calculated hashed values, and the data records saved into the same subarea have same hashed values; for any subarea, in the initial phase, the content in the subarea is empty, the saved data records are used for forming a file block when the saved data records reach preset requirements, and the data records not forming the file block are used for forming another file block when the saved data blocks not forming the file block reach preset requirements again, and so on; and an index entry is created for every formed file block. According to the method and the device, the creating speed of sparse indexes can be fastened. The invention discloses a sparse index and a query method and device based on the sparse index simultaneously.

The public opinion role recognition and migration system based on heterogeneous domain migration relates to the fields of data mining and machine learning. In order to solve the problem that the existing technology can not effectively extract knowledge in the face of the complex information of the netizen, can not carry out transfer learning between different fields, and thus can not realize the indirect sharing of knowledge. The system is a public opinion role identification migration model based on the Markov logic network, includes a data predicate module, The structure learning module, theknowledge extraction module, the knowledge transfer module and the parameter learning module. The domain knowledge is converted into the knowledge which can be recognized by the model for structurallearning and extract the knowledge which needs to be transferred to the target domain to complete the knowledge transfer, and then the model after the transfer learning through the parameter learningmodule is obtained. By integrating the conversion complexity into the domain distance and considering the transfer learning boundary from single source domain to single target domain, the migration iseffectively extracted in the face of complex netizen information.

A method for real-time assessment of natural disaster loss based on social media data comprises the following steps: step 1, acquiring social media text data with natural disaster as a keyword; 2, extracting text data and processing that data to complete word segmentation and emotion label of the text data; 3, establishing a natural disaster related vocabulary and an anti-vocabulary; 4, cleaning that text data based on the natural disaster-related thesaurus, the reverse thesaurus and the geographic information of the social media data; Step 5, setting an analysis period, acquiring the historical disaster data of the natural disaster in the analysis period, establishing a multiple linear regression model, and iteratively calculating until the significance level of the model coefficient is less than a set threshold value.

The invention provides a phase-locked loop circuit which comprises a frequency and phase detector, a charge pump, a loop low-pass filter, a first voltage-to-current conversion unit, a second voltage-to-current conversion unit, a current controlled oscillator, a frequency divider, a comparator, and a mode controller. The loop low-pass filter includes a switch S1, a switch S2, and a switch S3. The mode controller is used for controlling on-off of the switch S1, the switch S2 and the switch S3. According to the phase-locked loop circuit, the rise speed of a second control voltage signal VC2 supplied to the first voltage-to-current conversion unit can be improved, so that the second control voltage signal VC2 can reach the voltage value of a first control voltage signal VC1 supplied to the second voltage-to-current conversion unit in a short period of time, the establishment speed of the phase-locked loop circuit is improved, and the phase-locked loop circuit can make a response quickly.

The embodiments of the invention disclose a VPN tunnel establishing method, device and server. The method comprises the following steps: the server is used to acquire a negotiation data packet transmitted between a first VM and a second VM; the first VM and the second VM are determined to be VMs born by the server according to the negotiation data packet; VPN tunnel common parameters are generated for the first VM and the second VM; and a shared tunnel descriptor SA is generated for the first VM and the second VM according to the VPN tunnel common parameters to complete the establishment of the VPN tunnel. By applying the embodiments of the invention, when a VPN tunnel is established between two VMs belonging to a same server, the server is used to generate the VPN tunnel common parameters for the two VMs, so the complexity for establishing the VPN tunnel can be reduced, the establishing speed of the VPN tunnel can be improved; and SAs do not need to be established for the two VMs separately, but a shared SA is established for the two VMs, so the memory consumption of the server can be reduced.