269results about How to "Realize mutual conversion" patented technology

The invention discloses a multifunctional interface conversion device, which can realize interconversion among a USB interface, an Ethernet interface, a serial port RS232, a serial port RS422, a serial port RS485 and a CAN bus interface by installing a physical layer processing unit and a network layer processing unit corresponding to various conventional bus interfaces; realizes the setup of a work mode and the real-time display of data transmission by installing a man-machine interactive module, thus having better visuality and operability; realizes error recovery regeneration of original data information by the error recovery mechanism of the network layer protocol of various bus interfaces, thus effectively lowering the error rate of data transmission and improving the whole performance and reliability of the system; facilitates testing and functional expansion for users by installing an interface expansion module like adding a new lower computer device or a storage device; and realizes program overloading by a JTAG allocation interface, thus achieving the purpose of upgrading performance parameters.

The invention belongs to the technical field of Internet of Things, and specifically relates to an Internet of Things data service middleware system. The system mainly comprises a device management module, a protocol analysis module, a data interaction module, a database access interface, a data push subscription interface and an external system service packaging interface. An external sensor device sends data to the middleware system through a gateway. The device management module determines whether the used protocol is configured in a configuration file in the protocol analysis module according to the data packet. If the protocol is configured, a corresponding virtual entity is established for the sensor, and the data packet is sent to the protocol analysis module. The data packet is unpacked according to the corresponding protocol encapsulation class. The unpacked data enter the data interaction module for unified format conversion and enter a data queue to wait for processing. Three data interfaces are used for providing a database access operation, pushing data to a subscribed user system for a push service system, and transmitting the data to an external service system, wherein the data are as used as the source data of the external service system.

The invention discloses an Internet of Things gateway and an Internet of Things communication method. The Internet of Things gateway comprises a processor, a transceiver, a Ka band modem, an ultrahighfrequency (UHF) antenna and a Ka antenna; the transceiver and the UHF antenna are used for receiving a UHF band signal sent by an Internet of Things terminal, the processor is used for converting thereceived UHF band signal into a Ka band signal, and the Ka band modem and the Ka antenna are used for sending the Ka band signal obtained after conversion to a satellite; or the Ka band modem and theKa antenna are used for receiving the Ka band signal sent by the satellite, the processor is used for converting the received Ka band signal into the UHF band signal, and the transceiver and the UHFantenna are used for sending the UHF band signal obtained after conversion to the Internet of Things terminal. Accordingly, the Internet of Things gateway achieves the advantages that wireless communication between the Internet of Things terminal and the satellite can be achieved, a wired return stroke of a base station does not need to be laid, and the communication cost of an Internet of Thingssystem can be effectively reduced.

This invention discloses a inversion method for photovoltaic parallel in network, which uses digital signal processor (DSP) as core, the power factor is one and having small harmonic pollution to electric network, said method is a high efficiency and high reliability inversion method.

The invention discloses a two-stage compression heat pump system, aiming at providing the two-stage compression heat pump system easy for energy adjustment. The two-stage compression heat pump system can realize the mutual conversion between a high-pressure state compressor and a low-pressure stage compressor and improve the efficiency of a heat pump system. Meanwhile, all compressors can be put into use to improve the refrigerating capacity in summer when the heat pump system is used as an air conditioner in summer. The two-stage compression heat pump system comprises multiple groups of compressor units, a first heat exchanger, a second heat exchanger and an intermediate cooler, wherein each group of compressor unit comprises a compressor, a four-way reverse valve, a first solenoid valve, a second solenoid valve, a third solenoid valve and a fourth solenoid valve; the exhaust ends of the compressors are respectively connected with the first solenoid valve and the second solenoid valve; the air sucking ends of the compressors are respectively connected with the third solenoid valve and the fourth solenoid valve; and the interchange between the high-pressure stage and the low-pressure stage can be realized by opening or closing the solenoid valves connected to various compressors. The efficiency of the system can be improved by adjusting the flow of a refrigerator during two-stage compressor refrigeration circulation and two-stage compression heat pump circulation.

The invention provides a graphical programming source file storage and analytic method. The method includes the steps that graphic elements needed by graphical programming are divided into operation graphic elements and connecting line graphic elements; various attributes of the operation graphic elements and various attributes of the connecting line graphic elements are expressed by XMLs, and each type of the graphic elements is stored as an XML file; the XML files are analyzed, and attribute information of the corresponding graphic elements is obtained and used for graphical programming. The XML technology is used in graphical programming source file storage and conversion processes, interconversion between graphical programs and XML descriptions can be conveniently achieved, programming work is more efficient and convenient, and development cycles of products are shortened.

The invention provides a method and a device for switching modes of a mobile communication terminal. The mobile communication terminal supports the different communication modes. The method includes initiating network search for a first communication mode when the mobile communication terminal is in a second communication mode; and switching the second communication mode into the first communication mode after a network of the first communication mode is found, and connecting the mobile communication terminal with the network of the first communication mode. The method and the device have the advantage that possible influence of multi-mode cell reselection, cell measurement, cell switching and cell redirection which are specified by 3gpp (the third generation partnership project) international standards on the complexity in interoperation of protocols and the performance related to the business continuity can be prevented.

The invention discloses an Internet of Things (IoT) gateway transmitting among multiple protocols in an unvarnished manner and an implementation method thereof, and relates to the technical field of industrial IoT. The gateway comprises an internal gateway module and external gateway equipment, wherein the internal gateway module comprises a microprocessor, and a power module, a RS485 chip, a WiFimodule, a GPRS module, a ZigBee module and an Ethernet module electrically connected with the microprocessor in a bidirectional manner; the external gateway equipment comprises a power indicator light, a connection/failure indicator light, a receiving-transmitting indicator light, a reset key, a serial port connection port (RS485 interface), a RJ45 interface and a power interface. The gateway provided by the invention is small in size and prone to install, in a complex industrial system, each sub-module can be quickly integrated by using the gateway and the implementation method thereof, therepeated development can be effectively avoided, and the development cost can be reduced.

The invention relates to the technical field of wireless communication, in particular to a communication system based on a frameless network architecture and a networking method. According to the communication system based on the frameless network architecture and the networking method, a user-centered service set formed by antenna elements is constructed through new resource dimensionalities, namely the antenna elements and calculating and processing elements, and wireless resource management, mobile management, service unloading management, extensive coordination management between the antenna elements of different types and the like are carried out according to the service set. A traditional community setting and regional dividing mode is eliminated by the communication system based on the frameless network architecture and the networking method, then requirements of user terminals are taken as the center, and users have a dominant right of resource allocation. The wireless network networking problem when a large number of base stations of different kinds coexist and are intensively allocated is solved. Therefore, powerful technical support to the development of mobile wireless communication technique is supplied by the communication system based on the frameless network architecture and the networking method.

The invention relates to an insulation test tool for gas-insulated metal-enclosed switchgear (GIS) in the technical field of high-voltage switches. The insulation test tool comprises a power frequency test transformer, a thunder impulse generator, an impulse voltage leading-in sleeve, a voltage division coupler, a partial discharge calibration terminal, a three-phase transfer switch and four three-station isolating switches. In the insulation test tool, a thunder impulse test device is combined with a power frequency tolerance voltage test, two tests can be performed under the conditions of not changing the interval connection modes by switching the three-station isolating switches, and the test efficiency is improved. One set of intervals of 145kv and one set of intervals of 252kv can be jointed simultaneously by using two voltage classes of three-phase transfer. The insulation test tool structure for the GIS greatly improves the utilization rate of test equipment, and a thunder impulse test, a power frequency tolerance test and a partial discharging amount measurement test can be finished one time after interval joint; and the interval joint is more convenient.

The invention relates to the field of kinetic energy generation of electric automobiles, in particular to a method for realizing kinetic energy generation of an electric automobile by using vibration. When the electric automobile drives, kinetic energy is generated by using the vibration of a sprung automobile body with a vertical elastic system and enabling a hollow support plate heavy article box which is arranged above the sprung automobile body and is provided with the same vertical elastic system to generate frequency resonance or effective vibration. Furthermore, compared with a kinetic energy recycling mode of the electric automobile during braking, a method of a kinetic energy generating device fixedly arranged on the hollow support plate for generating by using the kinetic energy generated by vibration has the advantage that the utilization efficiency of the kinetic energy is greatly increased.

The invention relates to a tester wiring concentration conversion device for a vehicle. The tester wiring concentration conversion device for the vehicle comprises an adapter board which is provided with a relay control panel, a central processing unit (CPU) control panel used for controlling the relay control panel, an analog quantity switch communication channel selecting module, an upper computer and a communication interface, wherein the upper computer and the communication interface are used for giving a command control to the CPU control panel. An electrical power vehicle-mounted three phase direct-current resistance tester, a transformer no-load voltage ratio tester and a testing wire of a transformer on-load tap-changer tester are respectively mounted on the adapter board. The communication interface is connected with the analog quantity switch communication channel selecting module which is respectively connected with the upper computer and the CPU control panel. The CPU control panel is further connected with the relay control panel. The analog quantity switch communication channel selecting module selects communication channels through the control of the upper computer. The relay control panel carries out the control command of the CPU and enables the needed relay operation to be achieved, thus reaching the mode of connection and realizing the switchover among the three phase direct-current resistance tester, the transformer no-load voltage ratio tester and the transformer on-load tap-changer tester.

The invention relates to a method for co-production of high-concentration liquid CO2 by utilizing a low-temperature methanol washing process. The method comprises a high-concentration liquid CO2 production process and a low-temperature methanol washing process, wherein the high-concentration liquid CO2 production process comprises the following steps: (A) dehydrating and cooling CO2-rich raw gas and feeding to a first gas and liquid separation tank; (B) feeding a liquid-phase material flow condensed at the bottom of the first gas and liquid separation tank to a CO2 product purification tower for purification and refining; the low-temperature methanol washing process comprises the following steps: (C) absorbing CO2 by low-temperature poor methanol at the top of a decarburization tower; (D) in a desulfurization tower, treating sulfur-containing mixed gas by taking rich methanol as an absorbent; (E) in a methane gas stripping tower, performing gas stripping on the rich methanol entering the tower via the tower top by using the gas phase at the tower bottom so as to recycle methane gas; (F) performing vacuum flashing and heat regeneration by using an H2S concentrating tower and a methanol heat regeneration tower in order to remove acidic gases and regenerate methanol for cyclic utilization. In comparison with the prior art, the method disclosed by the invention has the advantages of low energy consumption, high liquid CO2 product concentration, high raw material utilization rate and the like.

The invention relates to the field of photon equipment and especially relates to a reconfigurable dynamic full light chaos logic gate which comprises a tunable distribution-feedback laser device, a beam splitter, a vertical chamber surface emission laser device, an optical isolator, a polarization beam splitter, a first subtracter and a second subtracter. The reconfigurable dynamic full light chaos logic gate provided by the invention has the advantages that conversion between a full light chaos logic gate operation and each logic gate operation is achieved; specifically, operations of ''AND'' gate, ''NAND'' gate, ''OR'' gate, ''NOR'' gate, ''XOR'' gate, and ''XNOR'' gate operations as well as mutual conversion can be achieved; and the reconfigurable dynamic full light chaos logic gate can be generalized and applied to logic operations of a full light digital chaos combination.

The invention provides a DL/T645 and GOOSE mapping method based on XML. The mapping method is characterized in that a message transmitted by a far end can be received; a message type can be discriminated; a XML description document can be invoked; the XML description document can be read, and corresponding frame fields can be provided; a XML configuration document can be invoked; frame formats of a target message can be assembled according to the XML configuration document; and the assembled target message can be transmitted to a target address. The DL/T645 and GOOSE mapping method based on the XML is advantageous in that the DL/T645 message and the GOOSE message can be described by the XML language, and the field names of the two messages in the XML label can be unified, and by splitting the fields of the corresponding messages, the mutual conversion between the DL/T645 and the GOOSE can be realized according to the conversion rule, and in addition, the good platform can be built for the mutual conversion between the protocols.

The invention relates to a cascaded-bistable-mechanism-based tri-stable or quaternary-stable mechanism and a changing method thereof, and belongs to the technical field of electromechanical systems and devices. The cascaded bistable mechanism is formed by an upper-end bistable mechanism and a lower-end bistable mechanism through a connecting rod and a connecting groove and then connected with a framework, and a positioning rod moves along the vertical direction; when the acting force of the upper-end bistable mechanism on the positioning rod is changed, the positioning rod is balanced at a second stable position under the support of the lower-end bistable mechanism; and when the upper-end bistable mechanism and the lower-end bistable mechanism skip simultaneously, the positioning rod reaches a third stable position. By adjusting the relative positions of the connecting rod and the connecting groove as well as the length of the connecting groove, the changing method changes the travel distance and the logical relation, i.e. a is lower than or equal to c which is equal to b or a is lower than or equal to c which is unequal to b, thus realizing the function transference between tri-stable state and quaternary-stable state. The mechanism has a simple structure, avoids friction and achieves adjustable quantities and positions of the stable states, thus being applicable to multiway switches and multi-stage variants.

The invention discloses an intelligent household socket based on transmission via the Wi-Fi technology. The intelligent household socket comprises a box body which is internally equipped with a power conversion module, an electric energy acquisition module, and a Wi-Fi communication module. The power conversion module is externally connected with a 220V alternating-current power supply. The power conversion module is connected with and provides a +5V direct-current power supply for the electric energy acquisition module. The power conversion module is connected with and provides a +5V direct-current power supply for the Wi-Fi communication module. The electric energy acquisition module and the Wi-Fi communication module are connected. The electric energy acquisition module sends acquired electricity consumption information to the Wi-Fi communication module, and the Wi-Fi communication module transmits the electricity consumption information to external equipment. The intelligent household socket based on transmission via the Wi-Fi technology has the advantages that working voltage and current values of electrical equipment can be acquired in real time, electricity consumption and other data can be worked out, the electrical parameters of electrical equipment can be monitored in real time, and consumers can easily know electricity consumption information of electrical equipment.

The invention belongs to the technical field of communication, and provides a transition method for an electronic tag and a logistic unit bar code. The method comprises the steps that electronic tag information or logistic unit bar code information are read; the electronic tag information or the logistic unit bar code information is decoded, and the information of each code segment of the electronic tag or the information of each code segment of the logistic unit bar code is respectively extracted; the electronic tag information is transformed into the logistic unit bar code information, or the logistic unit bar code information is transformed into the electronic tag information. The invention further provides a system for achieving the method. Therefore, transition between the electronic tag and the logistic unit bar code can be achieved conveniently.

The invention relates to the technical field of soil remediation, in particular to a remediation agent and remediation method for heavy metal contaminated soil. The remediation agent for the heavy metal contaminated soil comprises 2-16 parts of humic acid, 5-10 parts of succinic acid, 5-20 parts of sawdust, 2-10 parts of bentonite, 10-20 parts of sodium polyacrylate, 5-10 parts of honeycomb briquette ash, 5-20 parts of seaweed residues, 2-10 parts of zeolite, 5-10 parts of nano hydrogel, 10-30 parts of charcoal, 10-20 parts of Fe-Mn binary oxide, 5-10 parts of sodium pyrophosphate and 2-10 parts of microorganism mixed bacteria. The remediation agent is good in repairing effect and low in cost. The remediation method for remediating the heavy metal contaminated soil through the remediationagent is simple, heavy metal in the soil can be efficiently solidified, and the water quality grade of the soil penetrating fluid is improved.

The invention discloses a construction method for a high-throughput micro-fluidic chip detecting system. The construction method mainly comprises three processes, namely action of antibody and nucleotide crosslinking and the micro-fluidic chip, action of crosslinked antibody and nucleotide and a micro-fluidic chip, and action of fluorescent second antibodies and the micro-fluidic chip. The antibody and nucleotide crosslinking mainly comprises the following steps of: modifying and desalting antibodies; modifying and desalting nucleotide; and crosslinking and purifying the modified antibodies and the modified nucleotide and the like. The action of the antibody and nucleotide crosslinking and the high-throughput micro-fluidic chip mainly comprises the following steps of: eluting, melting and closing the chip; and reacting and eluting the crosslinking and the chip. The action of the fluorescent second antibodies and the micro-fluidic chip comprises the following steps of: idiosyncratically reacting Cy3 labelled second antibodies and a crosslinking antibody part connected to the chip; and performing subsequent eluting, scanning, melting and the like.

The invention provides an out-plane piezoelectric type hemispheric micro-gyroscope and a preparation method thereof. The out-plane piezoelectric type hemispheric micro-gyroscope comprises a monocrystalline silicon substrate, a miniature hemispheric harmonic oscillator, a central fixed support pillar, a common electrode, a uniformly distributed film piezoelectric body and a uniformly distributed signal electrode. According to the invention, the hemispheric structure is adopted as a harmonic oscillator, so that great effective vibration displacement is obtained, and detection effect for Coriolis effect can be enhanced; the common electrode, the film piezoelectric body and the signal electrode are manufactured by adopting an MEMS planar process, so that the manufacturing precision is high, and the structural degree of symmetry of the micro-gyroscope can be improved; the out-plane driving and the detection method are adopted, so that interconversion between out-plane force and in-plane can be realized, and Coriolis effect vertical to the direction of the substrate can be detected; the piezoelectric type driving and the detection method are adopted, miniature capacitance space needed by electrostatic micro-gyroscope is not needed, and meanwhile, the problems of stray capacitance, electrostatic adherence and the like are avoided; the technology is simple, the integrated degree is high, and batch production can be realized.