111results about How to "Guaranteed complexity" patented technology

The invention provides a method and a device for image prediction. The method comprises the steps of: obtaining a first reference unit of an image unit, wherein the image unit and the first reference unit obtain respective predicted images by using the same affine model; obtaining motion information of basic motion compensation units at the at least two preset positions of the first reference unit; and obtaining the motion information of the basic motion compensation units of the image unit. Therefore, by multiplexing the motion information of the first reference unit which adopts the same affine pre-model, a motion vector of the current image unit is obtained more exactly, the coding and decoding complexity is kept while the prediction accuracy is improved, and the coding and decoding performance is improved.

The invention relates to a road matching method based on the fusion of a probe vehicle movement track and an electronic map. The method is characterized in that an urban road network is divided by adopting a mesh division technology, so that the road section search complexity can be greatly reduced; a map matching method fusing a three-section matching concept of reference historical data and prospective data and an improved weight model concept is adopted for overcoming the weaknesses by acquiring strong points, the matching degree calculated by adopting the weight model is adopted as the evidence, and the three-section matching concept is used for making the decision, so that the reliability of the decision evidence and the reasonability of a result decision can be improved, and the relatively high matching precision can be achieved by virtue of the minimum complexity.

The invention discloses a method and a device for decoding an iterated internal code and evaluating a channel for an orthogonal frequency division multiplexing system. The iterating method comprises the following steps: at a transmitting end, carrying out internal code encoding and intraframe interleaving by a code with a long short code; at a receiving end, calculating circular convolution of an OFDM time domain data block and an evaluation value of channel time domain impulse response based on an initial evaluation value of the channel time domain impulse response; completing constellation de-mapping according to the channel evaluation and the result of circular convolution to acquire bit soft information; carrying out intraframe de-interleaving and internal code decoding on the bit soft information to acquire decoded bit soft information, carrying out intraframe interleaving on the decoded bit soft information, and remapping the constellation; and updating the evaluation value of the channel time domain impulse response according to the remapped result, and carrying out channel evaluation post-treatment. The method and the device can improve channel evaluation precision, and reduce system error rate, thereby improving system performance, in particular mobile performance, and ensuring complexity and controllable time delay of the system.

The embodiment of the invention relates to a method and equipment for testing compatibility after upgrading of a system. The method comprises the following steps of: before the system is upgraded, recording and storing a test case before upgrading of the system, date before testing of a use case, and a test result; after the system is upgraded, performing use case playback testing according to the test case before upgrading of the system, the date before testing of the use case, and the test result which are recorded and stored before the system is upgraded to obtain a use case playback result after upgrading; and judging the compatibility after upgrading of the system according to the consistency between the use case playback result and the recorded and stored test result. In the invention, various test scenes before upgrading of the system are recoded and are played back after upgrading, data is not needed to be constructed in advance, randomness and complexity of the use case can be guaranteed, the automation degree of a test is improved, and the test efficiency is effectively improved.

The invention discloses a solar and industrial waste heat cogeneration system, in particular to a Rankine cycle system for assisting industrial exhaust heat generation by utilizing a solar thermal collector. In the solar and industrial waste heat cogeneration system, a solar thermal collector, an intermediate heat exchanger and a work medium pump are sequentially connected in series to form a cycle; and the intermediate heat exchanger, an exhaust heat boiler, a steam drum of the exhaust heat boiler, a steam turbine, a power generator, a condenser, a deaerator, a water feeding pump and other equipment form the Rankine cycle generation system. A single pressure system or dual-pressure system can be adopted according to different parameters and different forms of the steam turbines, wherein in the single pressure system, the intermediate heat exchanger is used as the evaporator of the exhaust heat boiler and integrated with the exhaust heat boiler system for jointly producing superheated steam working medium; and in the dual-pressure system, the intermediate heat exchanger and a flash evaporator are used as independent equipment to be integrated with the exhaust heat boiler system. The system provided by the invention is beneficial to increasing the generated energy of generator sets for industrial exhaust heat generation, reducing the influence of the fluctuation of industrial exhaust heat to the generated energy, and simultaneously reducing the investment to simple solar thermal generation.

The invention discloses a dynamic path generation method directed at indoor navigation. The dynamic path generation method can provide real-time dynamic navigation path for indoor navigation service. A door state trigger defined in the invention comprises a fingerprint sensor and a smog sensor; and a variety of dynamic semantic information capable of influencing indoor topological structure can be captured through the door state trigger, so dynamic updating of an indoor topological network is realized. A corridor dividing method provided by the invention divides a corridor into a group of spatial units, and virtual doors are additional arranged among the spatial units for connection of the spatial, which is favorable for providing more accurate indoor navigation path. According to a network extension planning method utilized in the invention, a search tree generated in previous iteration is updated through real-time positional information and the dynamic topological network during path calculation, and eventually, navigation path is directly obtained through the search tree; so recalculation during each path planning is avoided, and temporal and spatial complexity during dynamic path planning is reduced.

The invention provides a Septin 9 gene methylation detection kit. The kit comprises at least one of the following three groups of specific primers and probes aiming at the detection of Septin 9-v2 exon methylation, SEQ ID NO.5-SEQ ID NO.7, SEQ ID NO.8-SEQ ID NO.10, and SEQ ID NO.11-SEQ ID.13. The invention further provides a Septin 9 gene methylation detection method and a sample pretreatment method. The Septin 9 gene methylation detection method comprises the following steps of TET enzyme oxidation; pyridine borane reaction; and multiple fluorescence PCR reaction. The kit and the detection method have the advantages of high detection sensitivity, good specificity and high detection flux.

The embodiment of the invention discloses a method for data transmission, which comprises the following steps: the length of an UpPTS in a special zone is set; and the UpPTS is used for data transmission. The embodiment of the invention also discloses a device for data transmission, which comprises an UpPTS length setting unit used for setting the UpPTS length and a data transmission unit used for the data transmission by the UpPTS. The embodiment of the invention adopts a flexible configuration method for the special time slot by setting the length of the UpPTS and then utilizing the UpPTS to transmit the data. On the foundation of guaranteeing the compatibility with aTD-SCDMA system, the performance of the special time slot is developed. On the premise of guaranteeing the system performance and complexity, the development of the UpPTS function is realized, and the data transmission can be carried out.

The invention provides an efficiently-calculated on-line/off-line digital signature method. A signature public key is recorded as U=g<-w>; a signature private key is recorded as w belong to Z*q; f and h:{0, 1}*->Zq are two transfer functions; and m is information to be signed. A signer acquires e=h(m), r belong to Zq and d=f(g<r>, calculates z=r+dwe belong to Zq, and takes (d, z) as the signature of m. The signature effectiveness is validated through the calculation of f(g<z>U<de>)=d. The signer can pre-calculate {r, d, dw} off line. If knowing m and d in advance, a signature verifier can calculate U<de> off line. d is either stored by the verifier in secrecy, or stored publicly by a third party except the signer and the signature verifier.

The invention provides a method adjusting the color of a navigation map according to the luminance of a screen. Backlight of a navigation system is manually set through software and can also be controlled through a light sensation sensor. The software or the light sensation sensor changes the duty ratio of PWM to form different kinds of LCD backlight control voltage and generate the luminance of different degrees, so that the display luminance of the screen is controlled. According to the navigation software, the luminance information of an LCD is obtained, when the map is drawn, a vector diagram engine can generate the background color corresponding to the backlight luminance, an electronic map is generated, and the map background color on the LCD screen can completely adapt to the backlight luminance, so that contents are displayed well and clearly. The method has the advantages that the operation complexity of the navigation system is lowered, and navigation equipment can be more intelligent and humanized. In the driving process, the problem of eye fatigue caused by the excessively high luminance of the LCD is solved, and the comfort to use the navigation map in the driving process and the driving safety are improved.

The invention provides an antenna beam switching sensing system and method and a mobile terminal. The system comprises a baseband chip and a radio frequency module connected with the baseband chip. The baseband chip is used for generating and sending a baseband communication signal. The radio frequency module is used for receiving a baseband communication signal sent by the baseband chip, sendingthe signal out through an antenna array in the radio frequency module, and acquiring attribute parameters of an echo signal of the antenna array. In addition, the baseband chip is also used for acquiring a sensing result for determining whether the antenna array is shielded according to the attribute parameters of the echo signal generated by the antenna array and a preset parameter. According tothe antenna beam switching sensing system, the antenna unit in the antenna array also serves as a detection antenna to sense the influence on the antenna array by an external environment quickly, so that the area needed by the antenna module and the device, complexity and cost that are needed by circuit design are reduced; and the power consumption and heat are reduced. Moreover, the wireless communication effect is ensured and the wireless communication experience of the user is improved.

The invention discloses a software authorization method. Software is activated through a password when being used for the first time, a license file is generated after software activation succeeds, and the valid period or residual effective day number of the software is recorded in the license file; in the valid period or when the residual effective day number is greater than 0, all the copies of successively activated software can be started run normally in an activation-free mode; after the valid period or when the residual effective day number is equal to 0, the software is needed to be activated. By adopting the technical scheme, the valid period of the software is prolonged through the password at a mother disk manufacturing stage, the valid period or residual effective day number of the software is limited through the license file at a software testing stage, authorization protection of the software is achieved, and the production efficiency of the software is also not affected. The method especially adapts to the production characteristic of the production line testing process based on general software authorization protection, and it is achieved that activation-free running of any copy can be achieved in the valid period after primary activation.

The invention provides a user verification method and a user verification system, which is applied to a network system composed of a client and a server. The user verification method comprises the steps of displaying a verification code image when the user verification is required, wherein the verification code image comprises at least one Chinese character in the horizontal direction and at least one Chinese character in the vertical direction; receiving the Chinese character in the horizontal direction from a first input field, and receiving the Chinese character in the vertical direction from a second input field; and conducting the user verification according to the received Chinese character in the horizontal direction and the received Chinese character in the vertical direction. During the user verification process, when the received Chinese character in the horizontal direction and the received Chinese character in the vertical direction are completely the same with the Chinese character of the verification code image in the horizontal direction and the Chinese character of the verification code image in the vertical direction, the user verification is approved successfully. Due to the adoption of the technical solution of the present invention, whether the verification object is a person or a computer can be judged more accurately.

The invention discloses an endoscopic robot based on lead screw active leg extension and contraction device. The device comprises a robot body, a control mechanism and a leg structure. The robot bodyis provided with a control mechanism, and the control mechanism is provided with a camera and a motor. The output shaft of the motor is fixedly connected with a leg structure, and the control mechanism is electrically connected to a control terminal of the peripheral device. The endoscopic robot based on lead screw active leg extension and contraction device can make the robot well in the premiseof ensuring complexity and operating time through the improvement of the leg structure and the cooperation of the camera and the motor, avoiding obstruction of the structure of the lumen tube and somelesions during the advancement process.

The invention discloses a low-complexity video signal coding processing method. The method comprises the steps of S1, obtaining a code CU; S2, judging whether the LID of the current position is greater than 20 or not, and if yes, executing a step S5; if not, extracting a feature vector xt of the current code CUt, and then executing the step S3; step S3, judging a division decision of the code CUtby using a decision maker ActNN; s4, defining a threshold value of u (t), if u (t) is greater than or equal to Phi, determining that the division decision of the current code CUt is' stop division ',terminating the rate distortion cost RD cost comparison process of the current code CUt in advance, and executing the step S2 after adding 1 to the LID; if u (t) is smaller than Phi, the division decision of the current code CUt is' continuous division ', the code CUt depth subjected to rate distortion cost RD cost comparison is increased by 1, and the step S2 is executed in sequence; s5, finishing division. According to the invention, the coding complexity can be effectively reduced, and the coding speed is improved.

The invention discloses a maneuvering target multi-frame detection tracking method based on a linear pseudo-measurement model, is applied to the technical field of radar target detection and tracking,and aims to solve the problems that a traditional maneuvering target multi-frame detection tracking method based on motion boundary constraint is low in tracking precision and poor in detection performance and the huge calculation cost problem of maneuvering target tracking by increasing the dimensionality of the search state space in the prior art. Historical information is used as a priori multi-stage joint optimization idea, firstly, a linear pseudo-measurement model is established according to historical information to estimate the motion information amount of a high-order target; then, amaneuvering target state transition model is introduced to model target maneuvering characteristics, then, the size of the multi-frame accumulation possible state transition interval is adaptively adjusted according to the established target maneuvering model, and finally a complete target detection tracking trajectory is outputted.

The invention provides a hair simulation method and system in the field of computer graphics, and the method comprises the following steps: S10, setting an initial state of a hair style, and dividingthe hair style into a fixed area and a motion area ; S20, generating a mapping skeleton of the hair based on the hair trend of the fixed area and the hair trend of the motion area; and S30, setting motion parameters of the hair, and simulating the motion of the hair by utilizing the motion parameters and the mapping skeleton. The invention has the advantage that real-time simulation of motion of complex hair styles is realized.

The present invention discloses a data synchronous processing method and a data synchronous processing device. The data synchronous processing method comprises: sending signaling and/or a forwarding packet to (M+N) subordinate TPs (Transmission Point); performing downstream data synchronism with the subordinate TP according to the sent signaling and/or the forwarding packet, wherein M subordinate TPs and M principal TPs are subjected to data synchronism at a PDCP (Packet Data Convergence Protocol) layer, N subordinate TPs and N principal TPs are subjected to data synchronism at the PDCP/RLC (Radio Link Control)/MAC (Medium Access Control) layer, M>=0, N>=0, and M+N>=1. According to the invention, the problem is solved how to control the overhead of data synchronism based on the guarantee of virtualization effect of a cell, so that the number of layers of data synchronism may be flexibly regulated and controlled according to the requirements of cell virtualization; and moreover, the overhead of data synchronism may be controlled based on the guarantee of virtualization effect of the cell.

The present invention relates to a fluorescent PCR (polymerase chain reaction) detection method for diagnosing low risk type human papilloma virus (HPV) infection, belonging to the in vitro nucleic acid diagnosis field. The present invention comprises a multiple polymerase chain reaction (PCR) system based on fluorescent PCR technique, includes a forward primer and a reverse primer which aim at a plurality of HPV types, as well as a fluorescent probe, and can simultaneously detect DNA comprising six HPV types at most, namely HPV6, 11, 40, 42, 43 and 44, in one reaction tube under proper PCR conditions. The detection method can conveniently and rapidly diagnoss HPV infection in clinical samples, is high in specificity, and has great clinical value for preventing and controlling condyloma acuminatum in an early stage, blocking infection sources and reducing HPV infection.

The invention discloses a secure multicast method for an overlay network at low expenses, and relates to the field of data communication technology, in particular to secure and efficient data transmission of the overlay network. A multicast tree is constructed by the adoption of a bottom-up hierarchical clustering strategy, the number of child nodes of a cluster head is reduced so that the complexity of a control algorithm for maintaining the topological relation through all nodes can be a constant, and it is ensured that node expenses cannot be increased along with increase of multicast scale; a self-balancing binary tree algorithm is adopted in a cluster to construct a multicast distribution path, system stability is guaranteed, and meanwhile the probability of data delay is reduced; a secret key distinguishing strategy is adopted during data distribution, different secret key strategies are adopted for the zeroth layer of nodes and the non-zeroth layer of nodes for encryption transmission of data, and data security is guaranteed.

The invention discloses a CT image skeleton segmentation method and device based on a convolutional neural network, and relates to the technical field of computer vision and deep learning. The method comprises the following steps: acquiring CT image data and inputting the CT image data into a skeleton recognition model; performing convolution operation processing on the CT image data to obtain a feature output graph C1; performing multiple composite operation processing on the feature output graph C1 through a bottleneck module to obtain a feature output graph CN; performing convolution operation processing on the feature output graph CN to obtain a feature output graph CN + 1; inputting the feature output graph CN + 1 into a plurality of pooling cores for average pooling operation to obtain a feature output graph PL; performing stacking operation on the plurality of feature output graphs PL to obtain a fusion feature PF1; performing stacking operation on the fusion feature PF1 and a feature output graph CN + 1 to obtain a fusion feature PF2; and carrying out convolution operation on the fusion feature PF2 to obtain a segmentation image S. According to the method, skeleton segmentation can be accurately and quickly performed on the CT image, the time cost is saved, and the requirement on the GPU is not high.

The invention provides a key generation and distribution method based on graph recognition, and relates to the field of digital copyright protection. In order to ensure the generation and secure distribution of an e-book key, the scheme provided by the invention is as follows: at an e-book downloading stage of a user, converting a first page of an e-book to be downloaded by the user into an image by a server; selecting color information in the image in combination with e-book information; using information scrambling color information of user equipment as a key to encrypt the e-book; and storing the e-book information in other color information layers of the image to be distributed with the encrypted e-book; at an e-book reading stage of the user, identifying key information in a graph in the first page of the downloaded e-book by a client, and decrypting the e-book. The key generation and distribution method provided by the invention is used for not only guaranteeing the complexity of the key, but also guaranteeing the secure distribution and storage of the key.