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306results about How to "Avoid complicated" patented technology

Method and device for selecting mobility management mechanism for terminal as required

The embodiment of the invention provides a method and device for selecting a mobility management mechanism for a terminal as required.The method includes the steps that the mobility support level required by the terminal is determined; the network selection function is informed to select a network or a network function capable of supporting the required mobility support level according to the determined mobility supporting level required by the terminal, so that corresponding mobility management is provided for the terminal.Different networks offer services to terminals of different mobility supporting requirements, complex network function configuration is avoided, and complexity of mobility management is effectively lowered.
Owner:DATANG MOBILE COMM EQUIP CO LTD

Vehicle-mounted terminal control method and system and cloud end server

The invention provides a vehicle-mounted terminal control method which comprises the steps that a cloud end server receives a control instruction on a vehicle-mounted terminal from a mobile terminal, whether the vehicle-mounted terminal is on line is judged, and if yes, the cloud server sends the control instruction to the vehicle-mounted terminal; and otherwise, the cloud server sends an activation signal to the vehicle-mounted terminal, the network communication function of the vehicle-mounted terminal is activated, and after the network communication function of the vehicle-mounted terminal is activated, the cloud end server sends the control instruction to the vehicle-mounted terminal through the network communication function. According to method, under the situation that energy is saved, long-distance vehicles can be controlled quickly at the same time, wireless communication is achieved, and easiness, high efficiency and applicability are achieved. The invention further discloses a vehicle-mounted terminal control system and the cloud end server.
Owner:BYD CO LTD

Python-based interface automation test method

ActiveCN109189684AReduced execution timeImprove efficiency in locating defectsSoftware testing/debuggingTest scriptTest frame
The invention discloses a Python-based interface automation test method, comprising the steps of defining an interface template and a test case template, reading the test case, calling the interface to send a request, analyzing the interface return message and outputting a test report. The Python-based interface automation test method of the invention follows the basic principle of the test framework, separates the business logic from the test script, separates the test script from the test data, can be changed at any time according to requirements, and can greatly reduce the requirement on the coding level of the tester.
Owner:SICHUAN CHANGHONG ELECTRIC CO LTD

Construction method for compound thrombus clearing preparation bioactivity chromatography finger print

The present invention discloses a construction method for a compound thrombus clearing preparation bioactivity chromatography finger print. The construction method comprises the following steps: (1) preparing a compound thrombus clearing preparation test solution, precisely sucking 10 mul of the compound thrombus clearing preparation test solution, and injecting into a double-pump dual-gradient high performance liquid chromatograph to obtain a compound thrombus clearing preparation HPLC finger print; (2) preparing a mixed reference substance solution, precisely sucking 10 mul of the reference substance solution, and injecting into the double-pump dual-gradient high performance liquid chromatograph to obtain a reference substance HPLC finger print; (3) adopting a reference substance control method, and adopting an RRLC / MS / MS technical method to prove 21 chemical components in the finger print; and (4) analyzing correlation between the 21 chemical components and bioactivity difference, clarifying bioactivity component groups, and establishing a compound thrombus clearing preparation bioactivity chromatography finger print. According to the present invention, the compound thrombus clearing preparation HPLC finger print and the bioactivity component groups obtained from chromatograph efficiency analysis are combined to construct the compound thrombus clearing preparation bioactivity chromatography finger print so as to completely monitor safeties, effectiveness and quality uniformities of raw material herbs, semi-finished products and finished products.
Owner:SUN YAT SEN UNIV +1

Enterprise taxation control platform and enterprise taxation control method

The invention relates to an enterprise taxation control platform and an enterprise taxation control method. The enterprise taxation control platform comprises a data acquisition module, a data processing module, a taxation control result output module, a taxation knowledge management module, a taxation archive module, an enterprise income tax final settlement module, a land increment tax liquidation module, a query module and an organizational structure module, wherein the data acquisition module, the data processing module and the taxation control result output module are used for acquiring and processing tax related data and outputting all results related to enterprise taxation control; the taxation knowledge management module is used for building an enterprise taxation knowledge base; the taxation archive module is used for storing and managing archives related to enterprise taxation; the enterprise income tax final settlement module is used for making final settlement and calculating enterprise annual income tax; the land increment tax liquidation module is used for calculating liquidation tax of enterprise land increment tax and managing the whole calculating flow; the query module is used for updating a database in which policies and regulations are stored and data related to taxation, and the query module can be used for query by a user; and the organizational structure module is used for constructing new enterprise organizations. Enterprises can implement self taxation management and control with automation, streamlining and standardization through the modules.
Owner:广东源恒软件科技有限公司

Traditional Chinese medicine antibiotic skincare hand cleanser and preparation method thereof

The invention relates to a traditional Chinese medicine antibiotic skincare hand cleanser prepared from mixed materials of a traditional Chinese medicine extract, a surfactant, an antiseptic, glycerin, an essence and water. The traditional Chinese medicine extract is prepared from raw materials of, by weight: 35-45 parts of lightyellow sophora root, 15-25 parts of amur corktree bark, 15-25 parts of Chinese gentian, 5-15 parts of common cnidium fruit, and 5-15 parts of belvedere fruit. The raw materials are extracted by using water, and the density d of the obtained traditional Chinese medicine extract is 1.5-1.8g / ml. The traditional Chinese medicine antibiotic skincare hand cleanser provided by the invention has certain inhibitive effects against escherichia coli, staphylococcus aureus, and candida albicans, and provides certain preventive effects against eczema, skin pruritus, and the like. The hand cleanser is also advantaged in small dosage, high decontamination capability, good sterilization effect, and low irritation. The hands are delicate and not dry after washing. According to the invention, the formula of the hand cleanser is simple. With the hand cleanser, modern market requirements on naturalness, environment-friendliness, and high antibiotic efficiency can be satisfied.
Owner:SHANXI ZHENDONG PHARMA

Integration method of dynamic heterogeneous space information plotting data

The invention provides an integration method of dynamic heterogeneous space information plotting data. The method mainly includes the steps of semantic ontology base building, data filtering, data conversion, fault tolerance management, space topology integration and plotting data integration base forming. Firstly, a dynamic heterogeneous plotting data semantic ontology base is built, a mapping rule in ontology is declared, precise meanings of concepts are determined, and the semantic heterogeneity problem is solved; whether metadata meet a required standard or not is judged, and the data are integrated and checked; then logical operation is conducted on data items, and derived data items are generated; according to a built fault tolerance rule base, incorrect data are saved and removed; meanwhile topological relationship processing is conducted on dynamic heterogeneous data elements, and eventually a dynamic heterogeneous plotting data integration base is formed. According to the method, complex data are made to be standardized, and workloads of data maintenance and interaction can be effectively reduced. Data content is defined and converted through metadata formats, and display of plotting data has expandability and flexibility.
Owner:BEIJING AEROSPACE TITAN TECH CO LTD

Inclined license plate correction and variable-length license plate recognition method based on deep learning

The invention discloses an inclined license plate correction and variable-length license plate recognition method based on deep learning. The method comprises two steps of training and prediction, andthe training stage comprises the following steps: constructing a license plate inclination correction network, and carrying out training by using license plate region sample pictures and normalized coordinates of corresponding angular points; constructing an uncertain-length license plate number recognition network, and performing training by using the license plate number region sample picture and the corresponding license plate number; the prediction stage comprises the following steps: sending a to-be-identified license plate picture to a license plate inclination correction network to predict license plate corner information and perform inclination correction; positioning by using a target detection method to obtain a license plate number area in the license plate area after inclination correction; and sending the license plate number area to an indefinite-length license plate number identification network and carrying out post-processing to obtain a license plate number. According to the invention, the inclined license plate can be corrected, and license plate number identification can be directly carried out from the whole license plate number area; and the method has extremely high robustness in a complex real scene.
Owner:ZHEJIANG UNIV

Braking system matching analysis method and system

The invention provides a braking system matching analysis method and system. The method comprises, according to an input pedal force, obtaining the pipeline pressure of a braking system through the input and output characteristics of a booster; obtaining a brake torque according to the pipeline pressure; obtaining the deceleration of a vehicle through a vehicle model according to the brake torque and accordingly establishing a relation curve of the pedal force and the deceleration for the matching analysis of a braking system, or obtaining pedal travel according to the pipeline pressure to establish a relation curve of the pedal travel and the deceleration for the matching analysis of the braking system, or further obtaining the speed or the braking distance by integrating the deceleration for the matching analysis of the braking system. The braking system matching analysis method and system can be applied to matching development of the braking system, a user only needs to fill relevant parameters in to achieve matching computation of the braking system and further to achieve predictive analysis on the braking performance of the entire vehicle during the initial design, thereby guaranteeing feasibility and performance superiority of system schemes.
Owner:GUANGZHOU AUTOMOBILE GROUP CO LTD

Joint replacement surgery navigation system and method

The embodiment of the invention discloses a joint replacement surgery navigation system and method. The system comprises a preoperative planning module, and a navigation registration module, wherein the preoperative planning module is used for performing segmentation and reconstruction according to obtained hip joint medical image data to obtain a hip joint three-dimensional model, performing preoperative planning, and determining the placement position, size and angle of a prosthesis; and the navigation registration module is used for determining the spatial positions of the pelvis and the femur according to a pelvis reference frame and a femur reference frame, registering the hip joint three-dimensional model according to the spatial position relationship between an operation probe and the pelvis reference frame and the femur reference frame to obtain a hip joint solid model, and according to the hip joint solid model, controlling a surgical instrument for clamping the prosthesis to place the prosthesis in the hip joint. Through preoperative planning of information such as an operation approach and a prosthesis placement position, a spatial positioning method is used during an operation to track the operation instrument, navigation support is provided for a doctor while the operation accuracy is improved, and the operation is safer and more efficient.
Owner:LONGWOOD VALLEY MEDICAL TECH CO LTD +1

Construction method of tilapia fillet quality evaluation model based on proteins and enzymes in muscle

ActiveCN102707024AScientific and reasonable quality evaluationIncrease credibilityTesting foodTilapiaFuzzy analytic hierarchy process
The invention discloses a construction method of a tilapia fillet quality evaluation model based on proteins and enzymes in muscle. According to the method, indexes of quality evaluation are determined according to factors causing quality changes of tilapia; the weight of each quality evaluation index is acquired by utilizing a fuzzy analytic hierarchy process, so that a relationship between subjective evaluation standard and objective evaluation standard can be established; and a quality evaluation model is established according to the weight, and an unknown sample can be subjected to quality evaluation. The method can effectively and subjectively evaluate the quality of tilapia fillet. The system can be used by manufactures and import and export companies in the industry to complete quality evaluation of the tilapia fillet.
Owner:SOUTH CHINA SEA FISHERIES RES INST CHINESE ACAD OF FISHERY SCI

Cloud computing data center based unified resource scheduling energy-saving method

The invention discloses a cloud computing data center based unified resource scheduling energy-saving method. The method comprises the following steps: 1, initializing a network node and a virtual machine queue; 2, storing a virtual machine request in the virtual machine queue; 3, arranging virtual machines in a descending order according to a resource request number of the virtual machines; 4, traversing all network nodes in sequence, and judging whether a network node meets a request requirement of a current virtual machine or not; if yes, taking a network node with lowest energy consumption, requested by the current virtual machine, as a target placement node, and otherwise, looking for a network node with most residual available resources, emigrating one virtual machine on the node, and placing the current virtual machine; 5, sequentially selecting a next virtual machine as a current virtual machine, and making a judgment again; and 6, optimizing system energy consumption again. The method has the advantages that a contradictory relation between a power consumption minimization problem and SLA requirement satisfaction is balanced; the method is an energy consumption optimization oriented resource scheduling algorithm; and the method has higher efficiency in energy consumption optimization.
Owner:BEIHANG UNIV

Compensation system rear-mounted frequency transmission system and method

The invention discloses a compensation system rear-mounted frequency transmission system, comprising a transmitting device and one or a plurality of receiving compensation devices. The transmitting device is used for modulating a frequency signal with the phase locked at a reference frequency source to a light signal, and transmitting, through one or a plurality of optical fiber links, the frequency signal to one or a plurality of receiving compensation devices arranged at a receiving end. The receiving compensation device is used for receiving the frequency signal with optical fiber link phase noise from the transmitting device, taking the frequency signal as a first auxiliary compensation signal, loading a microwave signal generated by a frequency oscillator to the light signal to be transmitted by the optical fiber link and demodulated so as to obtain a second auxiliary compensation signal comprising the same phase noise as the first auxiliary compensation signal, generating a phase compensation signal on the basis of the first and second auxiliary compensation signals, performing feedback control on the phase of a signal output by the frequency oscillator, and reproducing a frequency signal with the phase locked at a frequency transmitting source. Through adoption of the system, the transmitting device can be simplified, and the problem of complication of co-transmitting terminal transmitting device probably caused by multilink parallel transmission of the frequency signal can be solved.
Owner:TSINGHUA UNIV

Laser tracker based method for achieving optical system axis through and center alignment

The invention discloses a laser tracker based method for achieving optical system axis through and center alignment. The method comprises the steps that S1, a primary mirror and a secondary mirror of an optical system are assembled and adjusted; S2, a laser tracker is arranged; S3, a target ball is moved on the primary mirror, and the optical axis of the primary mirror is calibrated through the laser tracker; S4, the target ball is moved on the secondary mirror, and the optical axis of the secondary mirror is calibrated; S5, the size and the direction of the space deviation between optical axis of the primary mirror and the optical axis of the secondary axis are calculated; S6, the space position between the primary mirror and the secondary mirror is adjusted according to the size and the direction of the space deviation to ensure that the optical axis of the primary mirror and the optical axis of the secondary mirror coincide. The laser tracker based method for achieving optical system axis through and center alignment solves the problems that tools in the prior are complex, tedious in operation process and large in datum error, and is easy to operate, safe and efficient.
Owner:INST OF OPTICS & ELECTRONICS - CHINESE ACAD OF SCI

Method for preparing anode material iron phosphate lithium of lithium ion battery

The present invention relates to a method for producing LiFePO4 of positive pole of lithium ion battery. The invention is prominently characterized in that the method comprises three steps as follows: mixing the iron material, the lithium material and the phosphorus material uniformly to compound highly crystallized LiFePO4 in a high temperature first; adding a little diluted acid in the LiFePO4, after mixing and drying the processed LiFePO4 and conductive agent or pre-conductive agent, conducting ball mill for the mixture using a heavy ball; processing the mixture at a lower temperature and then the positive material LiFePO4 with excellent electrochemical performance can be gained. The gained LiFePO4 has favorable crystallinity and the electronic and the lithium ion conducting net is unique with excellent performance. The present invention uses cheap chemical product as raw material and the compounding art is simple thus is easy for producing on scale. The electrochemical character is favorable.
Owner:龚思源

Method for hydrothermally synthesizing analcime monocrystal

The invention belongs to the technical field of artificial synthesis of natural minerals and particularly relates to a synthetic method of an isometric system analcime monocrystal. The synthetic method is characterized by comprising the following steps of: (1) preparation of a sodium silicate solution, namely dissolving 3.865 grams of solid NaOH into 160mL of distilled water, then adding 1.201 grams of Si powder, carrying out water-bath reaction at 90 DEG C for 5 hours; (2) preparation of a sodium metalluminate solution, namely dissolving 1.947 grams of the solid NaOH into 50mL of the distilled water, and then adding 0.576 gram of Al powder, and sufficiently reacting under the condition of room temperature; (3) preparation of a precursor: respectively filtering the solutions, mixing, stirring, carrying out microwave heating, and carrying out stirring reaction for 0.5 hours; (4) placing the precursor in a high-pressure kettle, and carrying out thermostatic reaction at 200 DEG C for 3-6 days; (5) washing a product with distilled water to be neutral, and drying to obtain the analcime monocrystal with the size of about 120 micrometers.
Owner:UNIV OF JINAN

Auxiliary device used for basketball shooting training

InactiveCN108159668APractice basketball shooting skillsEasy to useBall sportsLED displayLiquid-crystal display
The invention discloses an auxiliary device used for basketball shooting training, and relates to the technical field of basketball training equipment. The device includes a base, a first electric lifting rod and a storage box are fixed on the upper portion of the base, one side of the tail end of the first electric lifting rod is fixedly provided with a first support rod, the tail end of the support rod is fixedly provided with a backboard, the top of the backboard is fixedly provided with an LED display screen, and the side, away from the base, of the backboard is fixedly provided with a basket; a net is arranged on the lower portion of the basket, and one side of the storage box is provided with a liquid crystal display; a main controller and a microphone are installed on the fixed partof the first electric lifting rod, the upper portion of the fixed part of the first electric lifting rod is fixedly provided with a second support rod, and the tail end of the second support rod is fixedly provided with a basketball receiving basket. The device not only can well exercise the basketball shooting skill of a trainee, but also can exercise the dribbling and basketball passing skillsof the trainee, and the whole device is convenient to use, easy to make and suitable for basketball shooting training.
Owner:LUOYANG NORMAL UNIV

Pure part plate combined industrialized house assembling structure which can be rapidly erected

The invention discloses a pure part plate combined industrialized house assembling structure which can be rapidly erected. The structure comprises a basic layer, a first-layer wallboard body, a floorslab layer, a second-layer wallboard body and roof slabs. The basic layer, the first-layer wallboard body, the second-layer wallboard body and the roof slabs comprise multiple digital-analog plates spliced to form frames, C through tube connecting pieces, square through tube connecting pieces and embedded parts. Each digital-analog plate comprises a double-faced combined plate, a hollow layer, a first groove and a second groove. The cross area of each C through tube connecting piece corresponds to the cross area of each first groove. The cross area of each square through tube connecting piece is smaller than one half of the cross area of each second groove. The square through tube connecting pieces are mutually spliced on the left side and the right side between more than two digital-analog plates. The pure part plate combined industrialized house assembling structure is produced in a modular mode, is erected in an assembled mode, is flat in appearance and free of hole positions, saves a building space and is not needed to be decorated. In addition, a PU waterproof sealing effect is added.
Owner:GUANGZHOU LAIWEI HOUSING CONSTR CO LTD

Simulation system model for demonstrating coal mining and roof dynamic changes

The invention discloses a simulation system model for demonstrating coal mining and roof dynamic changes. The simulation system model for demonstrating the coal mining and the roof dynamic changes comprises a masonry beam module, an immediate roof module, a first false roof module (6), a coal bed module (7), a baffle (8) and an air bag (9), wherein the masonry beam module is composed of a first masonry beam module (2), a masonry beam body (1) and a second masonry beam module (3); the immediate roof module comprises a first immediate roof module (4) for supporting the first masonry beam module (2), and at least four second immediate roof modules (5); the first false roof module (6) and the coal bed module (7) are used for supporting the first immediate roof module (4); the baffle (8) is used for supporting the rear parts of the second immediate roof modules (5) and is lower than the coal bed module (7); the air bag (9) is placed in a containing cavity formed by the baffle (8), the second immediate roof modules (5) and the coal bed module (7). The simulation system model for demonstrating the coal mining and the roof dynamic changes can dynamically demonstrate the coal mining and the roof structural changes, is easy to manufacture, is high in operability and can demonstrate circularly.
Owner:ANHUI UNIV OF SCI & TECH

Star topology framework-based message transmission method

ActiveCN107273228AAchieving real-time synchronization issuesSolving Duplicate Data Transfer IssuesInterprogram communicationStar/tree networksData synchronizationMessage queue
The invention discloses a star topology framework-based message transmission method. The method comprises the following steps of: 1) setting a source and a destination of message transfer; 2) constructing and configuring a middleware module between a center node and non-center nodes according to the quantity of the non-center nodes, wherein the middleware module is sued for pulling synchronous data from a source node and transmitting the synchronous data to an objective node according to appointed transmission direction; 3) starting each middleware sub-module, and determining the non-center nodes with data synchronization requirement according to configured content in the step 2); 4) obtaining messages in a consumer message queue, namely, a second message queue, by a message pull sub-module of the middleware module; 5) comparing a message offset of the second message queue and a message offset of a first message queue; 6) submitting the message offset of the consumer message queue to a producer by the middleware module through the center node; and 7) combing a message offset of an own queue and the message offset of the consumer message queue by the producer, and transmitting newly added data to the center node.
Owner:FOCUS TECH

Enterprise taxation management and control platform and method for realizing enterprise taxation management and control

The invention relates to an enterprise taxation management and control platform and a method for realizing enterprise taxation management and control. The platform comprises an ETL data acquisition module, a data processing module and a taxation management and control result output module. The platform is used for acquiring taxation-related data and processing the data, and outputting various results related to enterprise taxation management and control. The platform also comprises a taxation knowledge management module which is used for constructing an enterprise taxation knowledge base; a tax archive module which is used for storing and managing archives related to enterprise tax; an enterprise income tax calculation and final settlement module which is used for performing calculation and final settlement work on enterprise annual income tax; a land value-added tax liquidation module which is used for calculating enterprise land value-added tax liquidation tax money and managing the whole calculation process; an inquiring module which is used for updating and storing a policy and regulation database and materials related to taxation and providing inquiring for uses; and an organization construction module which is used for constructing a new enterprise organization. Automatic, procedural and standardized autonomous management and taxation control can be realized by enterprises via the aforementioned modules.
Owner:广东源恒软件科技有限公司

Short message conversation combining method and system thereof

InactiveCN105847555AImprove efficiencySolve the complicated sending SMSSubstation equipmentComputer networkEngineering
The invention provides a short message conversation combining method and a system thereof. The method includes a reception step of receiving service short messages of companies, an identification step of extracting the sending numbers of the short messages and identifying the sending companies and / or short message contents of the short messages, a combining step of combining the short messages with the short message conversation of the received and stored short messages according to the identification result, a displaying step of displaying short messages, and a storing step of storing the short messages. The system employs the method. The method and system solve the problem that short messages sent by a plurality of numbers of a same company are complicated and difficult to combine, combine short message conversation according to the short message contents, and further improve the use efficiency of short message conversation combining function.
Owner:ZHUHAI MICROFOUNTAIN TECH CO LTD

Method and apparatus based on voice sharing information, and mobile terminal

ActiveCN107767864AAvoid complicatedAvoid sharing processesSpeech recognitionVoice dataSpeech sound
The invention provides a method and apparatus based on voice sharing information, and a mobile terminal. The method comprises: displaying a target page and receiving a sharing instruction inputted bya user; according to the sharing instruction, acquiring voice data at least including information related to a to-be-shared target object; at least on the basis of the voice data, determining the to-be-shared target object and determining a to-be-shared target application; and sending information of the target page to the target object by the target application. Therefore, the complex sharing flowis avoided; and the great convenience is provided for the user.
Owner:ALIBABA GRP HLDG LTD

Message display method for mobile terminals, mobile terminal, and storage medium

The invention discloses a message display method for mobile terminals, which includes the following steps: a smart card application is associated with multiple preset applications in a mobile terminal; the smart card application detects whether there is a to-be-reminded item in each preset application; and if there is a to-be-reminded item, the smart card application displays the to-be-reminded item in a preset display window of the screen according to a predetermined mode. The invention further provides a mobile terminal and a storage medium. Through unified display of the to-be-reminded items in the preset applications of the mobile terminal by the smart card application, the problem as follows in the prior art is solved: the contents of messages pushed by the applications in the mobileterminal are diverse, users may miss important contents such as schedule reminders if users close message pushing, and users may be constantly reminded of useless messages such as advertisements or activities of applications and receive poor user experience if users do not close message pushing.
Owner:NUBIA TECHNOLOGY CO LTD

Wide-area damping control method based on identification of power system model

The invention relates to a wide-area damping control method based on identification of a power system model. The wide-area damping control method based on identification of the power system model includes the following steps that an observing signal is collected by means of a wide-area measuring system; pre-processing is carried out on the obtained observing signal to obtain a stable time sequence and the Bayes criterion is used for carrying out order determination on an ARMA model; an identification result is obtained by means of an improved ARMA model recognition algorithm; the time-lag power system state space model is obtained and a linear matrix inequality gamma and a linear matrix inequality theta are set up for obtaining the maximum time lag upper limit h which can be tolerated by the system and a controller K; fifthly, an output signal of the controller K is attached to a generator set excitation side which is in strong correlation with a low-frequency oscillation mode to finish damping control. According to the wide-area damping control method based on identification of the power system model, the computational process is simple, the operation speed is high, the obtained maximum time lag upper limit can meet the practical requirements and engineering realization is easy to achieve.
Owner:WUHAN UNIV

Electric automobile and discharging device thereof

The invention discloses a discharging device of an electric automobile. The discharging device comprises an alternating current charging port, a meter, a controller, a battery manager and a power battery, wherein the alternating current charging port is connected with a charging pile which is connected with a power grid, and is used for delivering output alternating current electricity to the power grid through the charging pile; the meter is used for sending out a discharging preparation command when a trigger signal is received; the controller is used for detecting whether the alternating current charging port is connected with the charging post after the discharging preparation command is received, is used for detecting whether a pulse width modulation (PWM) wave with preset voltage exists inside the controller or not, and is switched to be in an external discharging mode if the PWM wave with preset voltage exists inside the controller; the battery manager is used for controlling an external discharging loop in a high-voltage distribution cabinet which is used for actuating the electric automobile after the controller is switched to be in the external discharging mode; and the power battery is used for providing direct current electricity through the external discharging loop in the high-voltage distribution cabinet. The discharging device of the electric automobile has the advantages of simple model, high efficiency and applicability. The invention also provides the electric automobile.
Owner:BYD CO LTD

Secondary heat pipe-based heat-dissipation structure of server cabinet

The invention discloses a secondary heat pipe-based heat-dissipation structure of a server cabinet. The heat-dissipation structure comprises a primary heat pipe and a secondary heat pipe, wherein a plurality of servers are arranged in the server cabinet; each server comprises at least one main heating element; the primary heat pipe extends into a server case, an evaporation end is tightly attached to the main heating elements of the servers, a condensing end of the primary heat pipe is arranged outside the server case and is pressed and attached to the secondary heat pipe arranged outside the server case, so that heat generated from the inside of the servers is directly conducted by the primary heat pipe for heat exchange with the secondary heat pipe. According to the heat-dissipation structure of the server cabinet, the heat generated by the main heating elements in the server case is directly conducted through the primary heat pipe for heat exchange with the secondary heat pipe, so that the cost required for heat exchange of the server case is reduced; and heat transfer optimization of the server case is achieved.
Owner:BEIJING NYF SCI & TECH DEV CO LTD

Non-contact type fluid flow measuring system and method based on Lamb waves

The invention provides a non-contact type fluid flow measuring system and method based on Lamb waves. The system comprises a transducer I, a transducer II and a processor. The transducer I and the transducer II are arranged on the different sides of the outer portion of a to-be-measured pipeline respectively, and working surfaces do not make contact with the to-be-measured pipeline. By changing the transmission direction of ultrasonic waves, the flow speed of fluid flow obtained in two times in a Lamb wave signal obtaining pipe is obtained; the pipeline does not need to be opened, a coupling agent is omitted, the flow speed is directly reflected, the complex machining and the interrupting of field work are not needed in the installation process, the use of the coupling agent is completely avoided, labor and material cost are saved, measuring accuracy is improved, and the efficient fluid flow measuring system has important market economic value.
Owner:SOUTHWEST UNIVERSITY
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