97results about How to "Accurate and effective positioning" patented technology

The invention provides a method for detecting partial discharge of a gas insulated switchgear (GIS). The method is a comprehensive detecting method combining ultra-high frequency detection and acoustic emission detection to monitor and position the partial discharge in the GIS. The method for detecting the partial discharge of the GIS is more effective in the monitoring of the partial discharge ofthe GIS, and is more scientific and favorable for the scientific research of the partial discharge of the GIS because the acquired ultra-high frequency characteristic data and acoustic emission characteristic data can be compared and analyzed mutually; and after the initial positioning of the ultra-high frequency characteristic data, acoustic emission detection positioning is performed in a smallrange of discharge area, so the problem of low efficiency of the acoustic emission detection is solved, the positioning is more accurate and effective, and the accurate position of a discharge pointcan be discovered more quickly.

The invention relates to a short-distance sound source combined positioning method based on a shallow-sea multipath arrival angle and arrival time delay, and the method comprises the steps: estimating the multipath arrival angle information of a sound source through employing a weighted subspace high-resolution method, and estimating the multipath arrival time delay information of the sound source through calculating an autocorrelation function of a signal; finally constraining the multipath arrival angle and multipath arrival time delay information in a positioning fuzzy function at the same time, thereby achieving the accurate positioning of the shallow-sea short-distance sound source.

The embodiment of the invention discloses a method and device for screening electricity stealing users based on measurement big data, and the method comprises the steps: obtaining the measurement bigdata which comprises the power consumption, the area loss power and the line loss rate; determining electricity stealing behavior characteristics according to the metering big data; utilizing a presetalgorithm and according to the electricity larceny behavior characteristics, calculating electricity larceny behavior related parameter threshold values; calculating electricity larceny behavior related parameters of users in the target transformer area by using a preset algorithm according to the measurement big data of the target transformer area; comparing the electricity larceny behavior related parameters with electricity larceny behavior related parameter threshold values; and screening electricity larceny suspected users in the target court according to a comparison result. According to the technical scheme provided by the embodiment of the invention, the electricity stealing users can be accurately and effectively positioned, and the working efficiency of screening the electricitystealing users is improved.

A bicycle mounting mechanism and battery box assembly installed in a bicycle frame of a bicycle is provided to include a battery box and a mounting mechanism. The battery box includes an abutment recess and an opening. The mounting mechanism includes a grip and a locating component unit being connected to the bicycle frame and defining therein an accommodation chamber for accommodating the battery box. The grip is pivotally connected to the locating component unit and includes an abutment end portion and a push end portion. The abutment end portion is capable of inserting into the accommodation chamber and in engagement with the opening with a rotating of the grip. The push end portion is capable of inserting into the accommodation chamber and abuts against the abutment recess with a further rotating of the grip.

The invention discloses a post-disaster search and rescue terminal location method and system. The method comprises the steps of: selecting a position of a region to be detected; arranging a plurality of life detectors around the region in different directions; detecting the time delay and the strength of a distress signal received by each life detector; and determining a position and a depth of an embedded terminal according to the detection result. By adopting the technical scheme provided by the embodiment of the invention, the position and the depth of the embedded terminal and the position can be accurately and effectively detected, the position and the depth of the embedded terminal are immediately and efficiently judged, effective rescue guidance is provided for the post-disaster search and rescue personal, the rescue efficiency is greatly increased, and the survival rate of a trapped person can be ensured as the highest possible.

The invention discloses a method and system for detecting the internal short circuit of a power battery, the method comprising: acquiring the terminal voltage of each battery pack in the power battery; connecting all terminal voltages in series and constructing a closed detection model; calculating a correlation coefficient of each two adjacent terminal voltages, and determining the correlation coefficient as a detection coefficient of the battery pack corresponding to the previous one of the two adjacent terminal voltages; determining whether all the detection coefficients are higher than a set threshold; if so, determining that a short-circuit fault does not occur inside the power battery; if not, determining that the short-circuit fault occurs in the battery packs corresponding to the detection coefficients not higher than the set threshold. By constructing the closed detection model, the method, on one hand, can quickly and effectively detect the short circuit fault of the batteryand ensure the safety of the power battery, and on the other hand, can accurately and effectively position the fault to solve inaccurate and unstable short-circuit detection inside the power battery in the prior art.

The invention discloses a video clip searching and positioning method based on content. In order to solve the problems that in an existing video searching and positioning field, the feature extraction calculation amount is large, the feature is simplex, and the positioning accuracy rate is low, the invention provides a video clip searching and positioning method based on content, and belongs to the field of video processing. The method comprises the following steps of firstly partially decoding an H.264 compressed video to extract motion information and static information of videos, and generating a plurality of feature vectors; judging similarity between videos by measuring the distances between the feature vectors, thus achieving searching of the videos with similar content; and at last providing a positioning algorithm based on a sliding window, further using feature screening and positioning cut-off algorithms to accurately and effectively position the queried video in candidate videos screened according to the similarity based on the distances between the window measure feature vectors.

The invention discloses a laser welding machine capable of automatically rounding a coiled tube motor stator. An existing coiled tube motor stator welding machine cannot meet large-scale production. The laser welding machine comprises a pressing mechanism, a coiled tube motor stator grabbing mechanism, a clamping mechanism, a welding mechanism, a transmission mechanism, a rack and a welding clamprotating mechanism, wherein the pressing mechanism returns after applying downward pressure to a coiled tube motor stator on the transmission mechanism; the transmission mechanism provides a pressed coiled tube motor stator to the coiled tube motor stator grabbing mechanism; the coiled tube motor stator grabbing mechanism grabs a coiled tube motor stator to be welded to the clamping mechanism, andunloads the welded coiled tube motor stator; the welding mechanism welds the coiled tube motor stator; and the welding clamp rotating mechanism realizes rotating the welding mechanism and enabling acentral core rear positioning shaft to extend into or withdraw from the welding mechanism. The laser welding machine can accomplish welding work of the coiled tube motor stator in a fully-automatic mode, and guarantees roundness of the coiled tube motor stator through an internal central core in a welding process.

The invention discloses a method for alleviating a hidden interest packet flooding attack in a named data network, which comprises the following steps: detecting the state of each interface based on an access router, and limiting the interest packet receiving speed of an attacked interface for determining the interface subjected to the interest packet flooding attack; for an interface which cannotdetermine whether the attack is an interest packet flooding attack, reporting abnormal information to the controller; the controller judges whether an interest packet flooding attack exists in the network or not according to the received abnormal information, and informs an access router of a judgment result; if the controller notifies the access router that the access router is not attacked, regarding all interfaces of the access router as normal interfaces by the access router, and ending attack defense; otherwise, the access router reads the attacked interface list from the notification message and limits the interest packet receiving speed of the malicious interface. According to the method, the existence of the hidden interest packet flooding attack can be detected in time, the attacker can be accurately and effectively positioned, then targeted defense measures are taken, and the data access request of a legal user is prevented from being damaged.

The invention relates to an optical lens group which comprises a first lens and a second lens, wherein an optical axis of the first lens and an optical axis of the second lens are superposed; the radius of the second lens is more than that of the first lens; the first lens comprises a first optical part and a first mounting part; the second lens comprises a second optical part and a second mounting part; the first mounting part comprises a first buckling surface, a first bearing surface and a third bearing surface; the second mounting part comprises a second buckling surface and a second bearing surface which can cooperate with the first buckling surface and the first bearing surface; the vertical distance between the third bearing surface and the first bearing surface is D, and D is more than or equal to 0.08 mm and less than or equal to 0.5 mm. The optical lens group is stable in structure, realizes automatic centering and is favorable for rotational symmetry of image quality.

The invention discloses a robot positioning method and a robot positioning device, and the method comprises the steps: a preset label is introduced when the pose of a robot is determined, a preset label technology is combined with an IMU technology, a wheel speed odometer technology and a visual technology, and based on sliding window optimization processing, the fusion positioning of the label vision inertia wheel speed odometer based on tight coupling is realized; and moreover, the coordinate information of the preset label is fused into the sliding window optimization processing process, sothat the global positioning precision can be greatly improved, and the robot can be accurately and effectively positioned.

The invention discloses a cell interruption detection positioning method based on an adaptive resonance theory. The method comprises the following steps of: in an acquisition region including a plurality of cells in, acquiring kPI, user identification and position information of a user in a mode that the user reports a measurement report periodically, and clustering the user by adopting a method based on an adaptive resonance theory (ART) network and a K-S test (Kolmogorov-Smirnov test) according to the KPI information; ; and judging and positioning an interrupted cell in an acquisition area by combining user position information according to a clustering analysis result. According to the invention, based on the ART method, the condition that there are few or even no tagged historical datain the network is fully considered, and can can accurately and effectively complete the cell interruption detection function in combination with K-S test method, and the method has a good positioningeffect on the interrupted cell by combining the position information.

A method relates to light based positioning is provided. The method comprises: responsive to receiving a light signal from at least one light source (200) available to the device (100), decoding a beacon from the received light signal, the beacon associated with the at least one light source (200); measuring signal strength of the received light signal; and determining a position of the device (100) at least in part based on the decoded beacon, the measured signal strength, and number of the at least one light source (200). In addition, the frequency channelization and random channel hopping may be utilized to further improve the performance.

The invention provides a power cable fault point positioning method and system. The method includes the steps that an optical fiber is arranged; the optical fiber and a power cable are paved in an attached mode; when a fault occurs to the power cable, voltage pulses are exerted on one end of the power cable so that the power cable breaks down at a fault point; due to the fact that the optical fiber monitors vibration generated when the power cable breaks down, data, monitored by the optical fiber, of vibration generated when the power cable breaks down are collected, and the vibration data are obtained; the position of the fault point of the power cable is calculated according to the vibration data. The whole process is simple and fast, the optical fiber can accurately collect the vibration data of the power cable and transmits the vibration data for processing, and the fact that the whole positioning process is effective and accurate is guaranteed.

The invention relates to an artificial intelligence-based anatomical variation recognition prompting method and system, and the method comprises the steps: collecting an endoscope image in real time, and obtaining real-time organ segmentation data and instrument key point data according to an endoscope organ segmentation model and an instrument key point detection model; acquiring a position relationship between the variation structure and the surrounding organs by analyzing the preoperative iconography image, extracting the tissue segmentation data of the surrounding organs of the variation structure of the iconography image for comparison, and judging the position of the variation structure; detecting the position information of the key points of the instrument and the variation structure in real time, prompting the variation anatomical structure area when the instrument operates in the variation anatomical structure area, and operating according to the prompt. According to the method, by establishing the corresponding relation between the imaging examination and the endoscopic surgery visual field, the vein pipeline structure of the key operation in the surgery is accurately and effectively positioned, and important conditions are provided for more accurate operation of the surgical operation.

The invention provides a head and shoulder region positioning method and device. The method comprises the steps that a video image in a cab is acquired; the video image is input into a head and shoulder detection model; and a head and shoulder region in the video image is positioned through the output of the head and shoulder detection model, wherein the head and shoulder detection model formed by training a classifier through a number of head and shoulder training sets and a number of non-head-shoulder training sets. According to the invention, the problems of low project detection rate and low detection precision, which are caused by the influence of objective conditions such as ambient light and the like in the prior art, of head and shoulder region positioning are solved; the head and shoulder region is accurately and effectively positioned; and the robustness is great.

The invention provides an automatic armor steel positioning device for a heating furnace. The automatic armor steel positioning device comprises a furnace inside positioning machinery connecting rod, a limiting switch, a baffle and a baffle position retaining device, wherein the furnace inside positioning machinery connecting rod comprises a furnace inside part and a furnace outside part; the furnace outside part is used for mounting a limiting switch shifter; the baffle is arranged on the furnace inside part and positioned in a path by which a steel billet enters the heating furnace; when the steel billet is contacted with the baffle, the baffle is used for driving the furnace inside part, the furnace inside part is used for driving the furnace outside part and the limiting switch shifter; the limiting switch shifter is connected with the limiting switch and used for driving the limiting switch; the baffle position retaining device is connected with the furnace outside part and used for keeping the baffle in an initial position when an external force is not applied to the baffle. The automatic armor steel positioning device can be used for accurately and effectively positioning the steel billet, effectively determining the position of the steel billet, preventing the steel billet from colliding with the furnace wall of a furnace opening of the heating furnace and impacting the buffer baffle, and effectively improving the production safety and reliability.

The present invention provides a data tracking management method and apparatus. The method is characterized in that: the blockchain technology and the burying point technology are applied to the service transaction management of the bank; the credibility of the service data concerned by the service is realized through the blockchain technology; and through the burying point technology, a system identification, a transaction identification, an associated system identification and an associated transaction identification, together with the service data are added to the block for storage, so thatdata tracking can be realized, effective and accurate positioning on the transaction can be realized, and the method is very helpful for the bank to improve the supervision.

The invention discloses a method and a system for location and price information display of listed companies based on an electronic map. The method comprises: obtaining geographical position information of one or more listed companies; according to the geographical position information of one or more listed companies, displaying the listed companies in the corresponding positions of the electronic map in an associated manner; and according to a preset display rule, displaying corresponding price information and / or other information of the listed companies. Through the method and the system, distribution conditions of the listed companies in each geographical area are intuitively known in a detailed manner from a view of geographical position distribution, and according to the preset display rules, the corresponding price information and / or other information of the listed companies are displayed. Display measures are flexible and diverse, and information which can be displayed is flexible and diverse. Thus, each listed company even the price information and / or other information of whole market can be intuitively known in a detailed manner in an electronic map form.

The invention relates to the technical field of intelligent customer service, and discloses an intelligent customer service question-answering system based on a naive Bayesian classification algorithm, which comprises the following steps: 1) the voice input is performed by a user; 2) the voice recognition module recognizes the voice; 3) the language recognition module understands the natural language through a recognition algorithm; and 4) the understood questions are input into a question and answer engine. The method has the advantages that through voice input, voice recognition, natural language understanding and question and answer engine inputting, natural language understanding comprises user intention understanding and user question quick positioning, meaning to be expressed by language of human beings in various environments can be accurately and effectively recognized, and user experience is improved. Based on artificial intelligence technologies such as a deep neural networkand syntax dependence, the intelligent robot can accurately understand user problems and has intelligent capabilities such as intelligent questioning, semantic understanding accuracy exceeds 95%, andservice quality and efficiency are improved.

The invention discloses a method for the semantic expansion search of encrypted outsourcing data in a cloud environment. The method comprises the following steps of: sending a cipher text document setand a safety index set to a public cloud server, sending a document mark vector set to a private cloud server and sending a secret key to an authorized user by a data owner; sending a query mark vector to the private cloud server and sending a trap door to the public cloud server by the authorized user to complete a search request; matching the document mark vector with the query mark vector by the private cloud server to obtain a candidate index identifier set meeting query requirements of users and sending the candidate index identifier set to the public cloud server; and finding the corresponding safety index set through the received candidate index identifier set and the trap door, calculating and sorting similarity scores of documents and returning cipher text documents meeting the conditions to the authorized user by the public cloud server. The method has the advantages that the expense of the users is reduced while the privacy of the users is protected at the same time.

The invention discloses a method for Parkinson's disease classification and focus area marking of an MRI image. The method comprises the steps of constructing a Parkinson's disease classification model of the MRI image; constructing a Parkinson's disease focus labeling model; classifying the MRI image to be detected by using the Parkinson's disease classification model of the MRI image; and for the MRI image determined to be the Parkinson's disease or the MRI image in the incubation period of the Parkinson's disease, marking a focus area by using a Parkinson's disease focus marking model. Wherein the step of constructing the Parkinson's disease classification model of the MRI image comprises the steps of constructing a classification module, inputting a training set into the classification module, and updating network parameters through back propagation to obtain the MRI image classification model. The beneficial effects of the method are that the method of first classification and then labeling is used, the location of the focus area is more accurate and effective on the basis of improving the accuracy of the classification model, unnecessary training is avoided, the training efficiency is greatly improved, and the robustness of the model is stronger.

The invention discloses a hard real-time operating system delay test method and system. The method comprises the following steps: configuring equipment to be tested; configuring a first output port and a first interrupt port on the to-be-tested device; configuring a first test program, a first drive program and a first interrupt processing program in the to-be-tested device; electrically connecting the first output port with the first interrupt port; and initializing the first test program, applying for a memory with a preset length in the to-be-tested device, and initializing the memory to serve as a test result storage area. According to the hard real-time operating system time delay test method and system provided by the invention, the response time delay generated by the system in thewhole response process can be further refined, and when the response time delay index exceeds the standard, developers can be helped to perform accurate and effective positioning.

The invention relates to a permanent-magnetic vacuum on-load voltage-regulating tapping switch. The permanent-magnetic vacuum on-load voltage-regulating tapping switch comprises a gear selecting mechanism and a circuit switching mechanism, wherein the gear selecting mechanism is provided with a plurality of fixed contacts and a first moving contact matched with the fixed contacts; the circuit switching mechanism comprises a permanent-magnet mechanism, a selector switch, a vacuum tube and a transition resistor; the gear selecting mechanism and the circuit switching mechanism are parallel. The permanent-magnetic vacuum on-load voltage-regulating tapping switch is characterized in that the selector switch comprises a rotary shaft, a selector contact mechanism and a lever type mechanism; the permanent-magnet mechanism drives the rotary shaft to rotate; the rotary shaft drives the lever type mechanism to be connected with or disconnected from the vacuum tube, and drives the switching contact mechanism to move. The permanent-magnetic vacuum on-load voltage-regulating tapping switch has the beneficial effects that a reasonable layout and a miniaturization design are adopted in the designprocess, so that the overall dimension of a product is further reduced, and more space is saved for designing a transformer.

The invention relates to the field of test process improvement in research and development management, in particular to an application test method and device based on a call dependency relationship, comprising the following steps: searching for a to-be-tested application code by obtaining an application test request; searching a historical application code corresponding to the to-be-tested application code, comparing the to-be-tested application code with the historical application code, and determining a change node; determining a calling dependency relationship node corresponding to the modified node through call trace; determining a calling heat degree corresponding to the modification method, and determining a test key point and a test range; and testing the to-be-tested application code. From the perspective of to-be-tested application codes, the popularity data analysis of the user is carried out through the change nodes in the codes and the call dependency relationship nodes, sothat an affected change method in software version updating can be positioned more effectively and accurately; therefore, function verification and effective inspection can be more efficiently carried out on the hotspot service in the application test, and the efficiency of the application test is improved.

The invention discloses a laptop hardware positioning device. The laptop hardware positioning device is suitable for positioning and assembling accessories of a laptop on a structural piece and comprises a bearing table, a positioning jig and a cover plate. The positioning jig is used for positioning the structural piece, the cover plate is in pivot joint with the structural piece for being pressed and positioned on the positioning jig. The laptop hardware position device further comprises a pressing mechanism arranged on the cover plate, the pressing mechanism comprises a rapid clamp, a spring pressing head, a pressure sensor and a buzzer, and the rapid clamp is provided with a movable pushing rod. The spring pressing head is slidably arranged on the cover plate and directly faces the pushing rod, the pressure sensor directly faces the spring pressing head, and the buzzer is electrically connected with the pressure sensor. The spring pressing head presses the pressure sensor by meansof pushing of the pushing rod, and when the pressure sensor reaches the preset pressure value, the buzzer is controlled to give the alarm. By means of the alarm of the buzzer, the pressure for positioning the accessories can be effectively and accurately controlled, the assembling quality and accuracy are ensured, the structure is simple, the cost is low, operation is easy, and practicability is high.

The invention relates to a positioning device used for a pre-embedded part of a quick spring-bar fastener, comprising a sleeper mould soleplate used for fixing the pre-embedded part of the quick spring-bar fastener. 'Sunken' glyph pre-set holes which are symmetrical to two sides of a rail are cut on the sleeper mould soleplate, and sealing glue strips are fixed around hole walls of the 'Sunken' glyph pre-set holes and the holes are fixed by a mould fixing pressing-board and bolts, and the pre-embedded part of the quick spring-bar fastener is positioned in the 'Sunken' glyph pre-set holes. Projecting parts corresponding to the concave parts of the 'Sunken' glyph pre-set holes on the sleeper mould soleplate are adopted as sliding channels, a sliding pressing-sheet is respectively arranged in the internal part of the sliding channels, the outer ends of the sliding pressing-sheets are extended into the 'Sunken' glyph pre-set holes, the inner ends of the sliding pressing-sheet are connected with springs, the other ends of the springs are connected with the bolts, and a cover is fixed with bolts above the sliding channel. A positioning adjusting block is fixed on a positioning device fixing soleplate welded on the sleeper mould soleplate to quickly and accurately position the pre-embedded part of the quick spring-bar fastener onto the concrete sleeper mould so as to guarantee the quality of products.