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Intelligent remote monitoring method for protecting cathode of underground pipeline

The invention discloses an intelligent remote monitoring method for protecting a cathode of an underground pipeline. According to the method, test piles and a potentiostat are used, the potentiostat is electrically connected with a steel pipeline to form a transmission channel for inputting electrical performance parameters (protective potential), and the test piles are arranged on the underground pipeline according to an appropriate separation distance on a pipeline required to be monitored according to a selected separation distance; a system for accurately positioning and timing the test piles and potentiostat is built through GPS (global positioning system) modules in the test piles and potentiostat by using a satellite system; an intelligent collection, processing and transmission system of real-time measured data and control data is built through a GPRS (general packet radio service) wireless network, a server and a monitoring host; a GPS is used for performing unified timing to simultaneously cut off the power supply and acquire potential values of all the test piles on the underground pipeline; the potential data of each test pile are acquired when the power supply is cut off for 0.05-0.3 second; and a monitoring center gives an instruction through a monitoring host system according to a display result of an obtained data set image curve to change a set protective potential value of the potentiostat, and transmits the change instruction to the potentiostat through a network to ensure that the underground pipeline achieves the best protected state.
Owner:上海道盾科技股份有限公司

Evaluation object extraction method based on domain dictionary and semantic roles

The invention relates to an evaluation object extraction method based on a domain dictionary and semantic roles and belongs to the field of natural language processing application technologies. The evaluation object extraction method based on the domain dictionary and the semantic role comprises the following steps that firstly, according to the information of the part of speech, dependency information and semantic role information, the domain dictionary DL of evaluation objects is established; secondly, the characteristics in the four aspects of words, dependency, relative positions and the semantic roles are fully extracted, model training and prediction are carried out on the DL and the characteristics through conditional random fields (CRFs), and then the extraction of the evaluation objects is completed. Compared with the prior art, according to the characteristics that the structures of Chinese sentences, especially Chinese sentences of microblogs and forum evaluation information are flexible and diverse, the constructive methods are variable, and the number of the characteristics of the sentences is small, the syntax of different levels and the semantic information are fully utilized, the advantages of the evaluation object extraction method based on rules and machine learning are also utilized, the evaluation object with a high confidence coefficient is found from a corpus automatically, rapidly and accurately, and the accuracy of extraction of the evaluation objects of the Chinese sentences is improved.
Owner:BEIJING INSTITUTE OF TECHNOLOGYGY

Chinese comparative sentence recognizing method and device based on neural network

The invention relates to a Chinese comparative sentence recognizing method and device based on a neural network. The method comprises the following steps that firstly, normalization processing is conducted on linguistic data and word segmentation results of the linguistic data, and then coarse granularity extraction is conducted through a method based on the combination of comparative feature word dictionaries, syntactic structure templates and dependence relationships; finally, a class sequential rule (CSR) extraction algorithm is designed, CRF is used for mining entity object information, namely, semantic role information, comparative feature word features and statistical word features are used for assistance, the BP neural network is constructed by using the four features, and a feature type with the optimal performance is found out for completing fine granularity extraction. Compared with the prior art, the Chinese comparative sentence recognizing method and device based on the neural network have the advantages that different levels of semantic information can be effectively used for conducting recognizing, therefore, a user can find out Chinese comparative sentences with high confidence coefficients from the linguistic data quickly and accurately and the recognizing rate of the Chinese comparative sentences can be increased.
Owner:BEIJING INSTITUTE OF TECHNOLOGYGY

Intelligent remote monitoring and regulating system for cathode protection of underground pipelines

ActiveCN104674229AFunctionalRemotely adjust the frequency of data collectionGeneral Packet Radio ServiceEngineering
An intelligent remote monitoring and regulating system for cathode protection of underground pipelines comprises an intelligent test pole (1) equipped with a polarized probe, a constant potential rectifier (3) equipped with a constant potential rectifier intelligent measurement and control device, a transmission channel formed by electrically connecting the constant potential rectifier (3) and an underground steel pipeline (2) and used for inputting electrical parameters, as well as a monitoring host system comprising a server (7) of a remote monitoring and management system and intelligent terminals such as a computer, a tablet personal computer, a mobile phone and the like which are arranged in a monitoring center, an intelligent collecting processing and transmission system for measured data and control data is formed by a GPRS (general packet radio service) wireless network (5), the server (7) and the monitoring host system (8), and meanwhile, the remote real-time monitoring and detection system with functions of accurate positioning and time service is formed by an intelligent measurement and control device arranged in the intelligent test pole (1) and the constant potential rectifier intelligent measurement and control device matched with the constant potential rectifier (3) through a satellite positioning system (6).
Owner:CHINA SINOPEC PIPELINE STORAGE & TRANSPORTATION CO LTD +1

Iris external boundary positioning method based on shades of gray and classifier

An iris external boundary positioning method based on shades of gray and a classifier belongs to the technical field of image processing and relates to iris-identification technology. The method includes the following steps of: firstly determining an approximate region of the iris external boundary by pupil boundary information; secondly conducting histogram extension on the region and calculating lash gray threshold; subsequently using the shape and distribution characteristics of the iris external boundary to design two boundary point classifiers and obtain a point set of the iris external boundary; then according to the obtained point set of the iris external boundary, adopting a least square method to fit iris external boundaries ready to be selected; and finally utilizing pupil position information to compare the iris external boundaries ready to be selected and obtain the proximate iris external boundary curve. Compared with the existing iris external boundary positioning method, the iris external boundary positioning method has not only fast speed and accurate positioning, but also high robustness and the capability of still properly positioning an iris image with poor image quality, thus being conducive to improving the identification efficiency and accuracy of iris.
Owner:UNIV OF ELECTRONIC SCI & TECH OF CHINA

Train GPS mileage self-correcting system and correcting method thereof

The present invention relates to a train GPS mileage automatic amendment system and an amendment method. The system consists of a processing computer, the processing computer uses a serial port to connect with a GPS receiver, and the processing computer is connected with a rail detecting car through a network by the serial port. The present invention has the amendment method that information gotten by the GPS receiver is combined with the mileage of the manual amendment mileage, to establish a mileage data base, information continually gotten by the GPS receiver in the moving process of the rail detecting car is continuously matched with the mileage of the established mileage data base and calculated lingeringly, the mileage is amended for the detection system in real time according to a calculating result; the signal direction judgment and treatment is operated through the obtained information by GPS. The present invention resolves the retardancy of the GPS receiver when the GPS receiver outputs signals, thus the accuracy of the dynamic measurement of the GPS receiver is improved, the speed-up requirement is met, the mileage adjustment is not greatly influenced by the speed when the speed of the train is high, the precision is high, and the operation is simple.
Owner:CHINA ACADEMY OF RAILWAY SCI CORP LTD +2

Parking space management system and method thereof

The invention relates to a parking space management system and a method thereof. The parking space management system includes a total server, a video monitoring device, a user terminal, a sensing module, a blacklist management unit and a parking lock. The total server is used for managing and storing online parking space information and user information, and sending operation instructions; the user terminal is used for a user to access the total server; the sensing module is used to sense vehicle information when the user parks, and send an unlock command to the parking lock, to facilitate theparking by the user; the sensing module is also used to send a locking instruction to the parking lock after the user drives away from the parking space, to prevent the parking space from being illegally occupied; and the video monitoring device is used to monitor the parking space information in real time. For the monitored fee evasion users, the total server enters license plate information thereof into the blacklist management unit. The parking space management system has the advantages that a large number of idle parking spaces are fully utilized, resource waste is reduced, the problem ofshortage of the parking spaces is alleviated, and real-time sharing and reservation of limited parking space resources are achieved.
Owner:武汉慧城天下科技有限公司

Adhesion control program's automatic and rapid online testing method and testing module

The invention discloses an adhesive control program's automatic and rapid online testing method and testing module wherein the testing method comprises 1) setting a testing module to control a testing process for a to-be-tested adhesion control program; 2) in a testing mode, allowing the tested adhesion control program to execute testing procedures according to designated testing tasks by using the testing module and during the testing, simulating the running environment for the tested adhesive control program through the testing module; transferring the output signal of the tested adhesion control program to a pre-established adhesion control object model in order to simulate the running states of a vehicle and wheels thereof; and generating required information to the tested adhesion control program. The testing module includes a testing control logic unit and the following two elements in connection with the testing control logic unit: an adhesion control object model unit and a testing environment simulating unit. The testing method and testing module of the invention can be conveniently operated to achieve higher testing efficiency and precision at a lower testing cost. The method and module are also capable of conveniently repeating fault conditions. The testing process is also a safe and reliable one.
Owner:ZHUZHOU CSR TIMES ELECTRIC CO LTD

Commodity recommending system and method based on video contents

The invention discloses a commodity recommending system and method based on video contents. The system comprises multiple function modules. Commodity advertising information association tables corresponding to video contents can be built by applying the function modules; the association tables are stored in a storage device; after a request for playing a video is received, the video is played through a video player; the request is proposed by a user; after video play pausing information proposed by the user is received, the video is paused; the played duration of the video is calculated; the commodity advertising information in the association tables corresponding to the paused time point of the video is queried according to the played duration of the video; the commodity advertising information is sent to a client; the commodity advertising information is displayed in a display screen; when a request for clicking the commodity advertising information is received, the websites associated with the commodity advertising information are linked so as to enter related web pages; and the request for clicking the commodity advertising information is proposed by the user. Through the system and the method provided by the invention, the user can conveniently, rapidly and accurately find own favorite commodities.
Owner:SHENZHEN FUTAIHONG PRECISION IND CO LTD +1

Field of view test bench for head-up display

The invention relates to a field of view test bench for a head-up display. The field of view test bench is composed of a parallel light pipe, a platform, a head-up display bracket and an eye positionframe. The bottom of the parallel light pipe may be fixedly connected with the platform. An adjustable mechanism is designed between the head-up display bracket and the platform. After a head-up display is mounted on the bracket, the adjustable mechanism can be adopted to make the light axis of the head-up display to be parallel to the light axis of the parallel light pipe. The flip eye position frame can assist a tester in accurately positioning eye positions. The beneficial effects are that the head-up display and the parallel light pipe are integrated on the field of view test bench for thehead-up display so as to be able to move as a whole, the head-up display and the parallel light pipe are adjusted horizontally, the head-up display bracket is fixed on the platform and through the adjustment of four ball screws, the positions of the head-up display in the vertical direction as well as in azimuth and pitch are ensured, so that the head-up display is aligned with the light axis ofthe parallel light pipe, the operation is convenient, and the test preparation time is saved.
Owner:LUOYANG INST OF ELECTRO OPTICAL EQUIP OF AVIC

Status polling method and system for network devices in broadcast television network

The application provides a status polling method and system for network devices in a broadcast television network, wherein the method includes: calculating poll weights of network devices in the broadcast television network according to the stability and notability of the network devices, wherein the notability of the network devices in an anomalous network zone in the broadcast television network is higher than that of those in a normal network zone; determining the type of a network manager where each network device locates according to the poll weights of the network devices, wherein the different network manager types correspond to the different poll weight ranges; adding the network devices of the same network manager type to a corresponding poll queue; parallelly starting a poll thread corresponding to each poll queue, and subjecting the network devices included in each poll queue to status polling according to different polling frequencies so as to detect faulted network devices, wherein the wider the poll weight ranges corresponding to the poll queues, the higher the polling frequency for the poll queues. The status polling method and system according to the technical scheme can provide improved polling efficiency and allow the faulted network devices to be discovered quickly in focused manner.
Owner:LUSTER TERABAND PHOTONICS TECHNOLOGY CO LTD

Method and device for pushing recruitment recommendation service and terminal

The method is suitable for the technical field of data processing. The invention provides a method and device for pushing recruitment recommendation service and a terminal. The method and device are characterized by constructing a knowledge graph according to enterprise information and applicant information; calculating the similarity between enterprises and the similarity between applicants according to the attribute information of the enterprise entities and the applicant entities contained in the knowledge graph so as to classify the enterprises and the applicants; scoring the same kind ofenterprises or the same kind of applicants; after the scoring results are weighted and sorted, generating and pushing corresponding recruitment recommendation services to the same kind of enterprisesor the same kind of applicants; and by recommending the same type of applicants to the same type of enterprises and pushing the same type of enterprises to the same applicant, achieving two-way recommendation, improving recommendation accuracy, enabling the enterprises or the applicants to quickly and accurately find the applicants or the enterprises meeting the requirements of the enterprises orthe applicants, and improving recruitment efficiency.
Owner:TCL CORPORATION
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