33results about How to "Reduce the number of transformations" patented technology

The invention discloses a shunting-type isothermal sulfur-tolerant conversion process. The process comprises the following steps: shunting raw coal gas from exterior into at least two parts; leading overheat stream in the first part of the raw coal gas to increase the temperature to 200-300 DEG C; and then entering a first-stage conversion reaction step to carry out a conversion reaction and generate first conversion gas; and conveying the other part of the raw coal gas to next-stage conversion reaction step to carry out a conversion reaction. The catalyst bed of a shift converter has the advantages of stable temperature, simple control, convenient operation and low output CO content. The invention has the advantages of short conversion flows, few equipment, reduced resistance, great byproduct stream amount, high overheat temperature, stream pressure and heat recovery rate, and the like, thereby achieving the aims of reducing conversion stages, equipment number and resistance fall, decreasing investment, having great byproduct stream amount and high overheat temperature, stream pressure and heat recovery rate, reducing conversion stream consumption and outward wastewater discharge, protecting the environment and easily maximizing the device equipment. The invention also discloses shunting-type isothermal sulfur-tolerant conversion equipment used by the process.

The invention relates to a system for forwarding messages of an ESB. The system comprises an access engine and an ESB kernel, wherein the access engine provides access support of respective technicalspecification for a caller party and a callee party, and forwards a call request of the caller party or an execution result of the callee party; and the ESB kernel determines positions and types of afirst access engine corresponding to the caller party and a second access engine corresponding to the callee party, and selects direct forwarding, forwarding after natural serialization or forwardingor after unified message conversion of the call request transmitted by the caller party through the first access engine according to a determination result. The invention also relates to an ESB message forwarding method and a server which correspond to the system. The method and the system thereof perform message conversion of different strategies aiming at different conditions on comparison of the access engine types on the ESB, execute direct forwarding, natural serialization or unified message conversion of the messages according to different priorities, and achieve the aims of reducing message conversion times and improving the performance through optimization.

Provided are a wireless communication method and a wireless terminal. The method comprises: after a wireless terminal supporting a first RAT and a second RAT establishes a connection with a second RAT network, receiving, by the wireless terminal, a first message sent by the second RAT network, wherein the first message comprises a content used for querying a second RAT capability of the wireless terminal; and sending, by the wireless terminal, a second message to the second RAT network, wherein the second message is used for indicating the second RAT capability of the wireless terminal and indicating that the wireless terminal does not support the first RAT. Since the wireless terminal reports to the second RAT network that the wireless terminal does not support the first RAT, the second RAT network will not indicate for the wireless terminal to transform into the first RAT. Therefore, the wireless terminal can work at the second RAT for a long time, thereby reducing the number of transformations of the wireless terminal between the first RAT and the second RAT, reducing the network burden, and improving the user experience.

The embodiment of the invention provides a wireless communication method and a wireless terminal. The method comprises: after a wireless terminal supporting a first radio access technology (RAT) and a second RAT establishes a connection with a second RAT network, receiving, by the wireless terminal, a first message sent by the second RAT network, wherein the first message comprises a content used for querying a first RAT capability of the wireless terminal; and sending, by the wireless terminal, a second message to the second RAT network, wherein the second message is used for indicating that the wireless terminal does not support the first RAT. Since the wireless terminal reports to the second RAT network that the wireless terminal does not support the first RAT, the second RAT network will not indicate that the wireless terminal is transformed to the first RAT. Therefore, the wireless terminal can work in the second RAT for a long time, thereby reducing the number of times the wireless terminal is transformed between the first RAT and the second RAT, reducing the network burden, and improving the user experience.

The invention discloses a high-sensitivity Beidou satellite B1I signal capturing method. The defects in the prior art that the computation burden is huge, the processing speed is slow, and a local recurrence signal is generated repeatedly are overcome. The method comprises the following steps that firstly, a Beidou satellite B1I signal is input; secondly, grouping is carried out on data; thirdly, partitioning is carried out on the data; fourthly, a data block is modulated by adopting a NH code; fifthly, overlapping is carried out on the data block; sixthly, the local recurrence signal is generated; seventhly, Fourier transformation is carried out; eighthly, a correlation value is obtained; ninthly, a non-coherent integration value is obtained; tenthly, a local recurrence signal frequency is changed; eleventhly, it is judged that whether the cycle times are less than 10 times or not, if the cycle times are less than 10 times, the eighth step is executed, and if the cycle times are not less than 10 times, the twelfth step is executed; twelfthly, capturing and detecting are carried out. Compared with the prior art, the high-sensitivity Beidou satellite B1I signal capturing method has the advantages of being high in processing speed, and good in capturing performance.

The invention discloses a self-film-cutting type aluminum profile double-side-face synchronous film pasting machine. A contact roller and a cutting knife are in linkage through a transmission mechanism, wherein the contact roller is located behind a film rolling roller, and a part of the contact roller coincides with the conveying track of an aluminum profile; a knife edge of the cutting knife makes contact with a film guiding roller; when the contact roller rotates to the outer surface of the contact roller through the transmission mechanism to make rolling contact with the outer surface of the area, subjected to film pasting, in the aluminum profile, the cutting knife can rotate, a gap exists between the knife edge of the cutting knife and the film guiding roller, and an elastic device deforms; a film unwound from the film rolling roller can pass through the gap; and two sets of film pressing rollers are symmetrically arranged at the two ends of a clamping mechanism, telescopic rodsdo telescopic motion to be used for adjusting the distance between the two ends of the clamping mechanism, and the two sets of film pressing rollers make rolling contact with the corresponding side faces of the area, subjected to film pasting, in the aluminum profile correspondingly. The self-film-cutting type aluminum profile double-side-face synchronous film pasting machine has the advantages that synchronous film pasting of the two opposite side faces of the aluminum profile is achieved, the mechanical structure for automatically cutting off the film is optimized, and operation convenienceis improved.

The invention discloses a quasi single-stage transformerless grid-connected inverter and a control circuit thereof. The grid-connected inverter comprises a DC power conversion circuit and a full-bridge inverter circuit, wherein the full-bridge inverter circuit comprises a first power switch tube, a second power switch tube, a third power switch tube, a fourth power switch tube, a fifth power switch tube, a sixth power switch tube, a power diode, a first DC capacitor, a second DC capacitor, a first filter inductor, a second filter inductor and an AC filter capacitor; and the full-bridge inverter circuit has two connection modes; and two control circuits correspond to two full-bridge inverter topologies respectively. According to the quasi single-stage transformerless grid-connected inverter and the control circuit thereof, the conversion frequency of output power of a photovoltaic assembly is reduced, the on-state loss is reduced and the system efficiency is improved.

The invention discloses a seven-array element anti-interference Beidou satellite navigation system. The system comprises an antenna array and a satellite signal receiver. The satellite signal receivercomprises a receiver shell, and a receiver upper cover plate and a receiver lower cover plate which are clamped at the upper end and the lower end of the receiver shell. An anti-interference unit, areceiver unit and a power unit are clamped in the receiver shell. A radio frequency connector is in threaded connection within the side wall of the receiver shell. A radio frequency connection line isfixed at one end of the radio frequency connector. A navigation calculation module and a clock management module are fixed in the receiver shell. The antenna array comprises a mounting frame. A localoscillator module and a power module are fixed at the middle position of the lower part of the mounting frame. A radio frequency channel circuit is fixed at the lower part of the mounting frame. Antennas are fixed at the upper part of the mounting frame. An antenna housing is fixed on the top of the mounting frame. An SMP connector is fixed on the outer wall of the lower part of the mounting frame. The radio frequency channel circuit comprises a GNSS radio frequency module and 7 BD2 radio frequency modules.

The invention discloses a satellite network k-end reliability analysis method based on QoS. The method comprises the following steps of: analyzing a reliability index; analyzing multiple states of the link; and calculating the reliability of the k end of the satellite network based on QoS. According to the method, firstly, non-fusion elements are subjected to zero setting and non-fusion operation, network topology adjacency matrix transformation is carried out, a path communicating k nodes is obtained, the number of matrix transformation times is effectively reduced, and redundant links are avoided; then, the link is divided into a plurality of states, different states correspond to different link bandwidths, services are divided into three types by considering QoS index differences caused by service type differences, and available paths meeting the conditions in the satellite network are determined according to QoS constraint conditions of different services and the current state of the link; finally, the reliability of the k-end path under different services is calculated according to the reliability of the current state of the link; not only is the accuracy of reliability calculation improved, but also the calculation efficiency is improved; and the method has good application prospects.

The invention discloses a two-stage single phase three-level T-shaped asymmetric inverter, comprising a three-level Boost converter a single phase T-shaped asymmetric inverter connected with the three-level Boost converter, due to adoption of the T-shaped circuit of the inverter disclosed by the invention, compared with an I-shaped circuit in the prior art, a clamping diode does not need to be added, cost is reduced, power loss is avoided, and a circuit structure is also simplified. The invention also discloses a control method used for the inverter, and by adopting the provided control method, a numerical value of the obtained common mode voltage is relatively single. Number of times that the common mode voltage transforms in a predetermined cycle is fewer, a produced leakage current alsocan be correspondingly relatively small, and normal operation of the inverter is guaranteed. Besides, the invention also discloses a control device used for the inverter, and the effects of the control device are as mentioned above.

The invention discloses an efficient near-field large-size and small-size target ISAR imaging method based on backward projection. The method comprises the steps that an image data matrix is initialized; acquiring a distance time domain image by using a target backward electromagnetic scattering echo signal corresponding to the azimuth view angle; based on the distance from the radar antenna to the central scattering point of the target, the distance between any scattering point on the target except the central scattering point and the radar antenna, the distance time domain image and the image data matrix, obtaining an imaging result under the current visual angle; and superposing imaging results under all visual angles to obtain a near-field ISAR imaging result. According to the method, near-field ISAR fine imaging of targets with large and small sizes can be realized, the operand is reduced, and the target detection, recognition and resolution capabilities are improved.

The invention discloses a high-performance loop polynomial multiplier based on a 22MDC NTT structure. The high-performance loop polynomial multiplier comprises a plurality of delay switching circuits used for carrying out NTT conversion. The multi-path delay switching circuit is of a four-input-output access structure and is composed of y-level processing units. Each stage of processing unit comprises a butterfly unit, a plurality of data delay units with different delay periods, a plurality of storage units used for storing twiddle factors required by NTT conversion and an exchange unit used for transmitting data downwards according to a correct time sequence according to an NTT algorithm; according to the invention, the number of stages of NTT is reduced through the high-base NTT algorithm, the effects of reducing the time period and high throughput rate are achieved during hardware implementation, and a control unit is simplified at the same time.

The invention provides a multi-power-supply complementary power supply device and a control method thereof. The multi-power-supply complementary power supply device comprises a photovoltaic power supply branch, a mains supply input branch, an inverter and a system controller; the photovoltaic power supply branch comprises a solar controller, an energy storage unit and a photovoltaic voltage adjusting circuit which are sequentially arranged from photovoltaic input; the mains supply input branch comprises a mains supply conversion circuit connected with the mains supply; the output end of the photovoltaic voltage adjusting circuit and the output end of a first voltage boosting / reducing DC-DC unit are connected in parallel to a DC bus of the inverter; a first acquisition circuit is arranged between the system controller and the photovoltaic power supply branch; a second acquisition circuit is arranged between the system controller and the mains supply input branch; and the control outputend of the system controller is connected with the mains supply conversion circuit and the photovoltaic voltage adjusting circuit. Compared with the prior art, seamless switching between photovoltaicand mains supply is realized, short-time interruption of load power supply is avoided, and huge economic loss is avoided.

The invention discloses an electric energy router and an electric energy router control method. The electric energy router comprises three phase units; each phase unit comprises two bridge arm units which are connected in series, and a connection point of the two bridge arm units which are connected in series forms a high-voltage alternating-current port of the corresponding phase unit; each high-voltage alternating-current port is connected with an alternating-current power supply of a corresponding phase; the three phase units are connected in parallel to form a high-voltage direct-current port; each bridge arm unit is formed by connecting a bridge arm reactor, a power module unit and a plurality of hybrid alternating-current sub-modules in series; different numbers of hybrid alternating-current sub-modules are connected into each phase unit to form alternating-current ports of different voltage levels corresponding to the phase unit. According to the invention, control of transmission power among the electrical connection ports, bridge arm energy balance and sub-module capacitance voltage-sharing control are realized, high-voltage, medium-voltage and low-voltage alternating-current / direct-current electrical ports can be integrally provided, and the power density and energy utilization efficiency of equipment are effectively improved.

The invention discloses a special effect graph processing method and a special effect graph processing system for images with multiply pixel ratios. The method and the system are applied according to the following steps of: firstly, checking whether the pixel ratios of all input images of a node are the same and if yes, directly outputting the images; and if no, further providing different selection modes for the pixel ratios of the input and output images according to the number of the input images of the node. By the method and the system which are disclosed by the invention, a user can carry out mixed processing on the image with any pixel ratio in a special effect graph and the correct visual effect can be ensured. The times of carrying out pixel ratio conversion on the image in the special effect graph are effectively reduced. The processing efficiency is improved.

The invention discloses a quasi-single-stage transformerless grid-connected inverter and a control circuit thereof. The grid-connected inverter includes a DC power conversion circuit and a full-bridge inverter circuit, wherein the full-bridge inverter circuit includes first to sixth power switch tubes, power diodes, first and second DC capacitors, first, second The second filter inductor and the AC filter capacitor have two connection modes, corresponding to two full-bridge inverter topologies, and respectively have two control circuits. The invention reduces the conversion times of the output power of the photovoltaic module, reduces the on-state loss, and improves the system efficiency.

The invention discloses a low-energy-consumption LDPC encoder and method applied to an electric power Internet of Things system, and belongs to the field of wireless Internet of Things communication. The invention aims to solve the problem that the original communication system consumes more energy due to the fact that the coded information transmitted in the existing channel contains more high and low level transformations. The shift controller is used for sending a shift control signal to the shift register and the shift number storage module after receiving the coded signal; the shift register is used for converting a coded signal into a smooth signal and sending the smooth signal to the LDPC coded sequence composition module after receiving a shift control signal; the shift number storage module is used for receiving the coded signal and the shift control signal and calculating the digit of each high level in a smooth signal generated by the shift control signal in the coded signal, and the digit of the first digit of the coded signal is 0; and the LDPC coding sequence forming module is used for forming the smoothed signal and the digits into a serial signal and carrying out LDPC coding together to obtain an LDPC coding sequence. The method is used for reducing the number of changes of high and low levels in coded signals.

The invention discloses an earphone box rotating shaft installation mechanism and an earphone box installation system. The headphone box shaft installation mechanism includes a shaft installation carrier, the shaft installation carrier includes a positioning body, a first cover plate and a second cover plate, the positioning body is provided with a cavity capable of positioning the upper shell, and the first cover plate is rotatably connected On the positioning body, after the first cover plate is pressed on the positioning body, a placement part where the connecting component can be placed and positioned is formed between the positioning body and the first cover plate, and the second cover plate is arranged on the side of the first cover plate away from the positioning body On one side, the second cover can be rotated; the pressing mechanism, the pressing mechanism includes a pressing assembly capable of pressing the mounting carrier of the rotating shaft and a pushing assembly capable of pushing the rotating shaft into the mounting hole of the upper shell of the earphone box. The earphone box rotating shaft installation mechanism uses the rotating shaft installation carrier as the installation reference, reduces the number of changes in the installation reference, reduces the cumulative assembly error, improves the assembly accuracy between the rotating shaft and the upper shell, and improves the assembly accuracy of the earphone box.

The invention discloses an efficient near-field size target ISAR imaging method based on back projection, comprising: initializing an image data matrix; using the target back electromagnetic scattering echo signal corresponding to the azimuth viewing angle to obtain a distance time domain image; The distance from the radar antenna to the center scattering point of the target, the distance between any scattering point on the target and the radar antenna except the center scattering point, the distance time domain image, and the image data matrix, the imaging results under the current viewing angle are obtained; the imaging results under all viewing angles Superposition is performed to obtain near-field ISAR imaging results. The present invention can realize near-field ISAR fine imaging of large and small targets, reduce the calculation amount, and improve the target detection, recognition and resolution capabilities.

The invention relates to a novel capacitor energy storage isolation type single-stage four-quadrant inverter, and belongs to an inverter in an electric energy conversion device. The adopted high-frequency transformer has the functions of boosting and electrical isolation; the primary side adopts an active clamping circuit to reduce the switching loss of a switching tube; the secondary side of the transformer adopts a full-bridge hybrid modulation inverter circuit, and a bus energy storage capacitor is connected in series with a switching tube, so that excess energy is prevented from being fed back to a primary side direct current bus side, the energy conversion stage number is reduced, energy is stored in the bus energy storage capacitor, and energy balance of the energy storage capacitor is realized in each power frequency period. Therefore, the function of four-quadrant operation is realized, the efficiency of the inverter is improved, and the size of the inverter is reduced.

The invention relates to provide a generator set applicable to low-speed wind power and high-speed wind power. The generator set comprises a wind turbine, a clutch, a low-speed permanent magnet wind generator and a high-speed permanent magnet wind generator. The clutch comprises a hollow gear, a solid gear and a hollow gear shaft, a first steel plate and a second steel plate are installed at the upper end and the lower end of the hollow gear shaft respectively, a first electromagnet, a first spring and a first armature are sequentially installed on the outer side of the first steel plate, a second electromagnet, a second spring and a second armature are sequentially installed on the inner side of the first steel plate, the inner side and the outer side of the second steel plate are of the same structure as the inner side and the outer side of the first steel plate, the inner wall of the hollow gear is located on the outer side of the first armature and the outer side of a third armature, and the solid gear is located below the hollow gear. The wind turbine is connected with the hollow gear shaft. A shaft of the low-speed permanent magnet wind generator is installed between the second armature and a fourth armature. A shaft of the high-speed permanent magnet wind generator is installed in the solid gear. The generator set can be operated normally at a low speed and at a high speed.