714results about How to "Improve exchange efficiency" patented technology

The invention belongs to the technical field of information of the building industry, and provides an engine device and a method for data integration and exchange of building information mode based on IFC (industry foundation classes) standards, which are used for creating and applying a building information model (BIM). The method is based on a BIM database created on the basis of the IFC standards and a relational database, and BIM resolution in an IFC format, conversion of building information in non-IFC formats, extraction and integration of BIM submodels and storage, exchange and access control of BIM data are realized. The engine device comprises an IFC entity library, an IFC file resolver, an IFC geometric model converter, a Project-IFC converter, a BIM submodel integrator, a BIM submodel extractor, a data access controller, a BIM data storage device, a BIM data extractor, an IFC file generator and the like. The building information model data integration and exchange engine device and the method support conversion of BIM data in various formats, and BIM data integration and exchange oriented to various stages of the life cycle of a building or different applications can be realized. In addition, BIM data integration and exchange efficiency is effectively improved by the aid of data batch processing technology.

A fuel cell system includes an ion-exchange filter, which is provided with a cartridge which is filled up with an ion-exchange resin. The cartridge includes one of a pressure-loss emphasizing type cartridge and an ion-exchange efficiency emphasizing type cartridge, which are selectively exchanged with each other, for a common case of the ion-exchange filter. The ion-exchange efficiency emphasizing type cartridge is one for an ion-exchange filter having a high pressure loss and high ion-exchange efficiency and, on the other hand, the pressure-loss emphasizing type cartridge is one for an ion-exchange filter having a pressure loss lower than that of the former ion-exchange filter and an ion-exchange efficiency lower than that of the former ion-exchange filter.

The invention relates to an interactive service for rapidly accessing to the mobile internet by a wireless internet access method and a two-dimensional bar code technology, image recognition technology and embedded software technology via a mobile terminal with camera and mobile communication network. It drives the camera of the mobile terminal to shoot the targets graphics such as bar codes or special graphics after the launch of the software. A string identifier such as numbers or characters is decoded out to be packed into data packets by the program of client according to a special agreement, and then the data packets are sent to the remote server through the mobile network. The remote server splits up the data packets according to a special agreement to achieve the described identifier, and then the server reads the database according to the identifier to achieve the corresponding information and enforceable operating instructions corresponding to the information, and then the server packs the information into a new data packet and sends it to the mobile terminal via mobile network. The program of client splits up the data packet according to a special agreement to achieve the information and enforceable operating instructions and handles the information according to the instructions when the mobile terminal receives the data packets.

The invention discloses a block chain technology based data exchange method. The method uses the block chain technology into the field of data exchange and constructs a distributed type autonomous data exchange system based on the block chain technology. The free data exchange among multiple nodes in a network is realized through the design of a consensus algorithm for multiple nodes. At the same time, the invention applies the ellipse asymmetric encryption algorithm in the block chain technology, which can greatly guarantee the security in the data transmission process and can effectively prevent the data from being leaked and illegally tampered. The present invention makes full use of the block chain technology to decentralize the data organization characteristic, changes the point-to-point and the traditional data exchange way based on the multi-point data communication of a specific central platform, and greatly improves the data exchange efficiency and reduces the costs for data transfer and data exchange.

The invention discloses a wireless sensor network multiple target real-time tracking system based on event drive. The system is designed by using a hierarchy logical structure, wherein a perception layer, a network communication layer and an application layer are respectively comprised. In order to avoid network conflict in a multiple target tracking process, a self-adaption clustering node scheduling strategy based on a task is used. A Calman filter positioning tracking algorithm based on event drive is disclosed. A least square method with fast convergence speed is used to modify a current Calman filter state value, and positioning tracking is carried out on a number of mobile robots in a sensor network. The system uses a double token working mode and is combined with a dynamic time slot allocation method based on a task to effectively complete a network task in real time. The system uses the self-adaption clustering node scheduling method, can automatically carry out clustering on measurement data according to a moving target, breaks a previous working mode which is limited by single target tracking, and realizes a real-time multiple target tracking function and remote feedback control based on a wireless network.

Methods and apparatus provide a therapeutic fluid to devices implanted in the body, for example to containers of devices implanted in the eye of a patient. The methods and apparatus may comprise an injector to increase an amount of therapeutic agent injected into the device implanted in the eye, or a structure to receive the therapeutic fluid within the device implanted in the eye, or combinations thereof. The device implanted in the eye may comprise a reservoir chamber having a fluid with a density different than the therapeutic fluid, and the apparatus can be adapted to at least partially separate the implanted device fluid from therapeutic fluid within the reservoir chamber to increase and amount of therapeutic fluid placed in the reservoir chamber.

The invention discloses a service-oriented intelligent residential area real-time database system and a working method thereof. The system comprises a data interface layer, a data persistence layer, a call service layer, a data model layer and a service layer, wherein the data interface layer is used for performing classified collection on sensor information of a safety protection system or a building automation system of a residual area, packaging data according to a unified communication protocol and transmitting the packaged data into a memory of the data persistence layer in a binary data stream form; the data persistence layer is used for unified storage of the data collected by the data interface layer; the call service layer performs data analysis and storage; the data model layer is used for providing measurement points and an internet-of-things device and performing data associative analysis and prediction; and the service layer is used for providing core services including data analysis, data cleaning, data compression, data decompression, data conversion, real-time data access, historical data access, state monitoring, business management, log recording and alarm services. A real-time database has the characteristics of loose coupling, service reusability and the like.

The invention provides a multi-cluster cooperative data processing method and system, a memory medium and a computer device. The method comprises the steps of receiving collection data and convertingthe collection data into structured data; establishing a basic data sharing area on a Hadoop cluster and loading the structured data to the basic data sharing area; and cooperatively processing the data in the basic data sharing area through utilization of the Hadoop cluster, a Hadoop online processing cluster and a plurality of distributed database clusters according to a data application scene,thereby providing corresponding data service and finishing a data processing process. According to the method, the system, the memory medium and the computer device, the data redundancy can be reducedthrough establishment of the basic data sharing area.

A method for realizing passive light network operation and management is that general labels of the general multiprotocol label exchange protocol are applied to realize data forward multiple addressing base, the labels are taken as the basis of data service sorting forward. The label exchange path is applied to realize the forward of direct user end to user end, the strengthened route protocol is used to realize uniform flow engineering of passive light network and back bone network, the strengthened signaling protocol is used to realize the uniform label distribution of the passive light network and back bone network and the network management structure is applied to realize a uniform network management platform of the passive light network and backbone network.

The invention discloses orientation flimsy watermark generating and certificating method which can distinguish image and juggled watermark. Original image's wavelet low frequency coefficient of 4 bits is scalar quantized and used as watermark. The watermark is disturbed using random number to encrypt to improve its security. The encrypted watermark is embedded into LSB bit of original image. Original image's general picture is displayed through original watermark image's low frequency compress image recovered from watermark when certificating. Combining juggled position of image information located by difference value images with difference between image information and juggled watermark, how attacker juggled the image can be directly judged. At the premise of guaranteeing image's authenticity, switch efficiency of digital image is improved, which is helpful for digital images' application and spread. Adopting the invention, the authentication result is direct, visual effect is good, key's space is bigger and watermark algorithm is safer.

A high-capacity positive temperature coefficient heater, may include a plurality of positive temperature coefficient rods, wherein each of the positive temperature coefficient rods has a built-in positive temperature coefficient element that generates heat when electric power is supplied thereto, a plurality of heat-radiating fins attached to either side of the positive temperature coefficient rods along a longitudinal direction thereof, an upper housing coupled to one ends of the positive temperature coefficient rods, and a lower housing coupled to the other ends of the positive temperature coefficient rods, wherein the heat radiating fins are bonded to the positive temperature coefficient rods by heat conductive adhesive.

Disclosed is a water-cooled radiator for a sealed power distribution cabinet. The water-cooled radiator comprises a high-voltage sealed power distribution cabinet which is communicated with a temporary storage water tank through a water circulation pipeline A and connected with a refrigeration ice water machine through a water circulation pipeline B, and the water circulation pipeline A and the water circulation pipeline B are in heat interaction connection with a heat exchanger in the high-voltage sealed power distribution cabinet. Axial flow fans are arranged on the upper portion of the high-voltage sealed power distribution cabinet. A water-cooled circulation radiation method is utilized, heat in the sealed power distribution cabinet is subjected to heat exchange with water through the heat exchanger in the cabinet, redundant heat is carried by water to be discharged into the temporary storage water tank along a water outlet pipe to be cooled and filtered and enters the ice water machine to be cooled fully through a cooling system, and water is fed into a water inlet pipe through a water pump to cool and radiate the cabinet circularly. The water-cooled radiator has the advantage of a good radiation effect.

The present invention discloses a switching method of passive optical network (PON) system cipher key, which includes the following steps: cipher key is generated according to standard cipher key exchange method executing first cipher key exchange when arriving first cipher key exchange periods, optical line terminal (OLT) sends encrypting random number and cipher key switching time using last time cipher key exchange generating cipher key to optical network unit (ONU) when the new cipher key renewal cycle arrives, after ONU receives the message, ONU transmits affirmation reply message to OLT, then OLT and ONU generate new cipher key at the same time; when OLT receives affirmation reply message from, as well as arriving cipher key switching time, OLT and ONU switch to new cipher key at the same time. Using the invention can reduces cipher key exchange failing risks base on cipher key exchange safety by decreasing number of descending physical layer operations management maintenance (PLOM) interactive message in cipher key exchange process.

The invention relates to the technical field of processing of new resource food, and in particular relates to a method for preparing inulin by using Jerusalem artichoke or chicory as a raw material. The method for preparing the inulin is high in yield, low in water consumption and low in energy consumption. The method comprises the following steps of: sequentially peeling and dicing the artichoke or the chicory as the raw material, performing continuous countercurrent extraction, adding Ca(OH)2, CO2 and active carbon to carry out one-step impurity removal and decolorization, concentrating with a nano-filtration membrane, desalting the concentrate through a strong cation and weak anion resin exchange column, and thus obtaining the high-purity inulin. According to the method, impurity removal and decolorization are completed in one step, so that material waste caused by a double-carbon method is avoided, the process is simplified, and the production efficiency is improved.

The invention discloses an oil-bearing solid waste resource utilization device and method. The device comprises a hopper, a feeding device, a fluidized bed pyrolytic reaction distiller, a dust collector, an air pre-heater, a booster fan, a combustor, a buried pipe heat exchanger, a condenser, a fluidizing air pre-heater and an air chamber. The method includes the steps that oil in solid waste is pyrolyzed and distilled, pyrolyzed and distilled gas serves as an inert circulating medium, pyrolytic gas is cooled and liquefied in the air pre-heater and the condenser and separated to obtain fluid oil, reclamation is achieved, and noncondensing gas serves as pyrolytic fuel; after fresh air is heated in the air pre-heater, the fresh air, the noncondensing gas and make-up fuel combust and become high-temperature gas to provide heat for the fluidized bed pyrolytic reaction distiller. According to the device, oil in the oil-bearing solid waste is separated, solid waste resource utilization is achieved, and the effects of reducing environmental pollution and improving solid waste reclamation are achieved at the same time.

The present invention provides an airborne flight plan management system of a general-purpose aircraft. The system comprises an electronic map display module, a navigation data management module, a flight plan management module, and a flight plan execution module. The two-dimensional map display and chart display are realized by the electronic map display module. The navigation data management module comprises route data, airport data and spatial data which are stored in the form of files, and a route lookup table, an airport lookup table and an airspace data lookup table are arranged in a lexicographic order. The flight plan management module and the navigation data management module are in real-time interaction, and the creation, deletion, and activation/deactivation of a flight plan are realized. The functions of direct flight, overturn, map orientation, deviation, directing, near seeking, and radial line are realized by the flight plan execution module. The system is based on a customized file storage navigation database and has the characteristics of complete functions, compact design, and easy operation, and the flying efficiency of the general-purpose aircraft is greatly improved.

The invention discloses a liquid nitrogen cooling cryogenic device and an implementation method for the same. The cryogenic device comprises a self-pressurization liquid nitrogen tank, a cryogenic container, a liquid nitrogen dedicated cryogenic electromagnetic valve, a temperature control alarm and a sample container, wherein the cryogenic container is connected with a liquid outlet of the self-pressurization liquid nitrogen tank through a liquid nitrogen pipeline; the liquid nitrogen dedicated cryogenic electromagnetic valve is arranged in the liquid nitrogen pipeline; the temperature control alarm is connected with the liquid nitrogen dedicated cryogenic electromagnetic valve, and is provided with a first temperature measurement probe and a second temperature measurement probe; the sample container is arranged in the cryogenic container; both the first and second temperature measurement probes are positioned in the cryogenic container; the second temperature measurement probe is lower than the first temperature measurement probe; an organic matter medium filling pipe and an organic matter medium discharging pipe are further arranged on the cryogenic container respectively. The cryogenic device is simple in structure, low in cost and convenient to control, and has good cryogenic cooling and cryogenic constant temperature control effects, so that the requirements of a miniature cryogenic device in a laboratory can be met, and the requirements of larger-sized engineering operation can further be met.

The invention discloses a hydrophilic and hydrophobic compound steam permeation film as well as a preparation method and application thereof. The hydrophilic and hydrophobic compound steam permeation film comprises a substrate layer, a hydrophobic layer and a hydrophilic layer, wherein the hydrophobic layer is coated on a first surface of the substrate layer and used for releasing the steam; the hydrophilic layer is coated on a second surface of the substrate layer and used for absorbing the steam; the hydrophilic layer integrally enters the substrate layer, so that the first surface of the hydrophilic layer and the second surface of the substrate layer are polymerized; on the boundary wherein the second surface of the hydrophilic layer is contacted with the inner part of the hydrophobic layer, an interface, which is used for releasing liquid water in the hydrophilic layer through holes on the surface of the hydrophobic layer, is formed.. The absorption of the steam in the air is promoted through coating the hydrophilic layer on one surface of the substrate layer and the evaporation of the steam is promoted through coating the hydrophobic layer on the other surface of the hydrophilic layer so that the movement speed of the steam in the steam permeation film is improved and favorable moisture-penetrability is provided.