312results about How to "Flexible conversion" patented technology

The invention relates to the technical field of railway tunnel construction, specifically a digging method of IV and V-class surrounding rock railway tunnel with large cross section, aiming to solve the problems of the existing railway tunnel digging method including narrow operation space, low work efficiency, inflexible construction method, instable construction progress, high deformation potential of surrounding rock, and inconvenient operation. The method comprises performing leading support, digging arc-shaped pilot tunnel and preserving core soil; staggeredly digging left/right side walls of middle sidestep and preserving core soil; staggeredly digging left/right side walls of lower sidestep and preserving core soil; sequentially digging upper, middle and lower sidesteps and preserving core soil; and digging inverted arch and carrying out preliminary support. The invention has large construction space and high work efficiency, and can perform multi-job parallel operation. When the geologic conditions are changed, the invention can be flexibly and timely converted to other construction method. Preservation of core soil and left/right staggeredly digging are helpful to the stability of the digging working face. When the surrounding rock has large deformation, the invention can adjust closure time as soon as possible under the prerequisite of assuring safety and meeting requirements of clearance cross section.

The invention discloses a time division duplex system, a dynamic frame structure based on the time division duplex (TDD) system and a configuration method. In a wireless frame, a subframe is selected as a dynamic subframe which has various states, and the states comprise an uplink subframe state, a downlink subframe state and an empty subframe state. In the time division duplex (TDD) system, when the adjacent boundaries of domains adopting different uplink and downlink configurations or the subdomain in the domain adopting certain uplink and downlink configuration changes the uplink and downlink configuration, the state of the dynamic subframe is adjusted so as to avoid the overlapping phenomenon of the uplink subframe and the downlink subframe of the adjacent cells adopting different uplink and downlink configurations, thus eliminating interference between the uplink subframe and the downlink subframe; and when a service type in certain subdomain is changed, the uplink and downlink configuration can be flexibly converted into other uplink and downlink configurations.

The present invention discloses a computer programmable autocontrol system and a control method thereof, where the system includes an application layer, a real-time dispatch layer and a real-time control layer, wherein the application layer is used for developing and coding programs, to implement remote communication and network man-machine interface interactive function; the real-time dispatch layer is used for real-time operation of programs of the application layer, and real-time dispatch of an operating instruction on the real-time control layer, to thereby operate hardware; the real-time control layer is used for execution of the operating instruction, so as to complete control operation. According to the invention, a system platform with uniform combination of software and hardware is used, to integrate control modes, such as a PLC control mode, a machine-man control mode and so on into one system, which supplies functions such as logic, motion and processing; with this system, a user can upgrade or convert the control mode more flexibly and openly.

The invention provides an underwater acoustic signal real-time extraction method based on the laser orthogonal polarization interference technology, relating to the underwater acoustic signal real-time extraction method based on the laser orthogonal polarization interference technology. An existing method lacks flexibility, the detection of an underwater wide range moving sound source can not be satisfied, only the detection of the static characteristic of an underwater sound source can be carried out, the real-time extraction of an underwater sound signal can not be realized, and the above problems are solved by the method of the invention. A passive homodyne interferometer system is constructed; an initial coordinate system is established; a laser outputs a single-frequency laser beam to go through a collimating lens and a polarizer to be linearly polarized light, a 45-degree angle is formed by the vibration direction of the linearly polarized light and an X axis, the linearly polarized light goes through a polarized beam splitting prism 1 to be splitted into two beams of polarized light whose vibration directions are perpendicular to each other, and the polarized light is marked as S light and P light; the S light is reflected by the polarized beam splitting prism 1 as reference light, P light is used as detection light, photodetectors detect signals, and the phases of the detected signals are obtained by using a demodulation way. The method is applied to the field of underwater signals.

The invention discloses a method for excavating mountain tunnels in weak surrounding rock-fractured zones or shallow covered slope sections, which includes the following steps: (1) cover arch and forepoling; (2) tunnel cutting, including the following steps: (a) the annular part of the upper cross section of the portal of the buried tunnel is first cut, a core soil part is formed on the upper cross section, and an arch is formed; (b) combined bolting and shotcrete is carried out on the arch; (c) the core soil part is cut; (d) the lower cross section of the portal of the buried tunnel is cut; (e) first shotcrete and combined bolting and shotcrete are carried out on the left and the right sidewalls; (f) an inverted arch is lined and backfilled; (g) secondary lining is carried out; (3) step 2 is repeated until the leading pipe shed construction of the next tunnel section is carried out; (4) step 3 is repeated until the tunnel runs through the weak surrounding rock-fractured zone of a mountain. The construction space is large, multi-working face parallel operation can be carried out, and the working efficiency is high; and since the core soil is reserved on the upper cross section and the left and the right cross sections on the lower cross section are staggerly cut forward, the cut working face can be kept stable.

Disclosed is a symmetrical and asymmetrical reconfigurable four-configuration parallel platform. Three branch chains of the parallel platform are of the same structure. A first hook joint, a third hook joint and a fourth hook joint are connected with a movable platform. A second hook joint, a fifth hook joint and a sixth hook joint are connected with a fixed platform. A first arc rotary plate is installed on a first side rod. A second arc rotary plate is installed on a second side rod. A third arc rotary plate is installed on a third side rod. The parallel platform can be flexibly switched between a symmetrical structure and asymmetrical 3-UPU, 2-UPU-URU, 2-URU-UPU and 3-URU configurations, work space of the parallel platform is enlarged on the basis that the advantage of high bearing capacity of the parallel platform is kept, and the parallel platform has wide prospects in engineering application.

The invention discloses a satellite magnetic moment measurement method in the geomagnetic environment magnetic field, which uses the characteristic that the satellite magnetic moment is consistent with the direction of the earth's magnetic field, simplifies the satellite magnetic moment to measure the satellite residual magnetic moment and the satellite magnetic moment, and uses three orthogonal The remanent magnetic moment in the direction is decomposed into the magnetic moment of the equatorial plane and the horizontal plane where the satellite is transposed by 90°. During the measurement, the satellite should not be turned over, and the vertical component of the magnetic induction moment should be separated; the measurement method uses three-component and single-component magnetometers , the magnetic sensor is arranged near the satellite, connected to the magnetometer main box through a 20m signal line, and the analog/digital converter converts the analog quantity into a digital quantity. Through the test software compiled in BC++ language under the Windows interface, the microcomputer has storage measurement functions for data, calculation of magnetic moments, and documentation. The invention has strong versatility and is easy to operate. Due to the short test time, the fluctuation of the environment magnetic field is small, the calculation error of the magnetic moment is also small, and the measurement accuracy reaches 7.5%.

The invention discloses an excavation construction method for a super large cross section tunnel of bias shallow buried weak surrounding rock. A temporary median lamella wall is adopted to divide a tunnel face into a left part and a right part; and the left part and the right part are excavated simultaneously through a three-bench-five-step method. According to the three-bench-five-step excavation method of the median lamella, when the geological condition changes, construction processes can be converted flexible and timely, the construction method is adjusted, and the construction period is shortened. The excavation method is simple in process and reliable in excavation, excavation of the super large cross section tunnel of the bias shallow buried weak surrounding rock is provided an important guarantee, the failure rate is low, and the project profitability is enhanced. A locking anchor pipe replaces a traditional locking anchor rod, the stability of the structure is also improved, meanwhile, steel pipes are adopted to fix steel frames, so that the steel frames form a whole through the connected steel pipes, the system bearing load is improved, the fixing effect of the steel frames is better, and control of tunnel deformation is very favorable.

The embodiment of the invention provides a communication method, a piece of user equipment and an SRC. The method includes: the user equipment establishing a first connection with the SRC through a first communication network; the user equipment sending NAS signalings or layer 3 (L3) signalings of a second communication network to the SRC through the first connection and/or receiving the NAS signalings or L3 signalings of the second communication network from the SRC, wherein the first communication network and the second communication network use different RATs and the SRC is used for management of the radio resources of the first communication network and the second communication network. So through transmission of the NAS/L3 signalings of the second communication system on the first connection established in the first communication system, the communication method, the user equipment and the SRC enable services to be switched flexibly between different RATs so that system efficiency is improved.

The present invention belongs to the technical field of a vehicle power system and relates to an internal-combustion engine fuel supply technology. The present invention discloses a vehicle methanol pyrolysis gas device which is arranged at the exhaust pipeline of an engine that means a pyrolysis gas device casing is one part of the exhaust pipeline. The two ends of the pyrolysis gas device casing are provided with a front exhaust pipe and a back exhaust pipe. The high-temperature exhausted by an engine cylinder enters into the pyrolysis gas device casing through the front exhaust pipe and is exhausted from the back exhaust pipe. After the technical proposal is adopted, the thermal value after the reaction is higher, and dynamic performance is kept at higher level, which improves automobile exhausting performance and fuel economic performance and satisfies the running power requirement of the whole vehicle. The present invention has simple structure and convenient use, which solves the problem of using reproducible energy source to substitute oil fuel, is better for relieving the intense situation of oil energy source and is cleaner and more protective to environment. The vehicle methanol pyrolysis gas device has reasonable control method and the flexible conversion of working states.

The invention discloses double-station metal material adding and milling-grinding composite manufacturing equipment. The double-station metal material adding and milling-grinding composite manufacturing equipment comprises a material adding station located in inert gas protective atmosphere and a material reducing station located in an air environment, the material adding station is isolated from the material reducing station in a sealed manner, and the material adding station and the material reducing station are located above an X-axis lathe bed; an A/C axis swing and rotation workbench which can move along a slide rail is mounted in the vertical direction of the X-axis lathe bed and can be switched between the material adding station and the material reducing station. The double-station metal material adding and milling-grinding composite manufacturing equipment has the advantages that the material adding station uses multi-axis linkage of an X axis, a Y axis, a Z axis, an A axis and a C axis to perform material adding accumulation, a B-axis index head is used to change the feeding direction of a fusion covering head, and the equipment is applicable to the formation of complex parts with cantilever features or narrow inner spaces; the material reducing station uses multi-axis linkage of an X axis, a V axis, a W axis, an A axis and a C axis to perform material reducing processing, flexible switching between adding and reducing is achieved while adding and reducing environments are not destroyed, and procedure compositing can be achieved favorably.

The invention provides a multi-modal brain MRI image bidirectional conversion method based on multi-generation and multi-confrontation. The method comprises the steps that an input image (T1/T2) and acorresponding pathological label are fused through a convolution network and serve as input data of a converter; T1 modal data is input and converted into a T2 modal image through a T2 modal converter; T2 modal data is input and converted into a T1 modal image through a T1 modal converter; confrontation loss between an output image and a real image is constructed; loop verification loss is constructed to achieve the verification of the effectiveness of the converter; content loss between the output image and the real image is constructed, so that the result is closer to the real image; edge loss is introduced to constrain the edges of the real image and output image; the difference between semantic segmentation results of the output image and real image is taken as shape loss to keep theshape consistency. The multi-modal brain MRI image bidirectional conversion method based on the multi-generation and the multi-confrontation can perform bidirectional conversion on multi-modal brain MRI data, and also ensure the invariance of the texture, structure and pathology of the images.

The invention belongs to the field of sports equipment, particularly provides a double-plate type multi-user cooperative sliding device and aims to solve the problem that a conventional double-plate type multi-user cooperative sliding device is complicated in structure, smaller in rolling amplitude and short of flexibility. The sliding device comprises a first sliding plate, a second sliding plate and linkage rods, wherein the linkage rods are connected with the first sliding plate and the second sliding plate through worm and gear units, so that the first sliding plate and the second sliding plate can be inclined towards one side simultaneously; the linkage rods are made of an elastic material, a ball bearing is mounted between each support and a corresponding gear, and accordingly, a sliding state between the first sliding plate and the second sliding plate can be changed. The two sliding plates of the sliding device have larger angles of inclination, the turning radius of motion of the whole device is reduced, the gravity center of the device carrying people can be flexibly shifted, so that the sliding device can avoid the rollover phenomenon when turning, rotating or jumping at a higher sliding speed, and a technical condition can be provided for pairs of skiers to realize creative sports artistic expression.

The invention relates to a system and a method for preparing sulphur-bearing granular urea. The invention utilizes the existing device for preparing sulphur-bearing granular urea, adds a sulphur adding part, a dispersing agent adding pump and an evaporator, provides a system for preparing the sulphur-bearing granular urea, and provides the method for producing the sulphur-bearing granular urea by using the system. The system of the invention possibly maintains the original system for preparing the sulphur-bearing granular urea, has the advantages of simple operation, low investment and short flow process, and can conveniently provide the sulphur-bearing urea capable of meeting the sulphur nutrient requirement of crops.

The invention relates to a bioreactor, which is formed by serially connecting a reciprocating-rotation cell culture tank assembly module (104), a gas-dispersion control assembly module (102) and a liquid flow direction control assembly module (103) through a cell culture solution circulation pipeline. A carrier suspension conglutinated with cells is injected into a cell culture tank of a reciprocating bioreactor, and along with the rotation of a step motor and a double-headed peristaltic pump in the liquid flow direction control assembly module, the output of a preceding state hemodialysis unit or a culture solution in a culture solution container enters the circulation pipeline. When the culture solution reaches a dialysis column (301), a corresponding gas is diffused into the culture solution. Then, the culture solution with the corresponding gas is sent into the cell culture tank. After the exchange of substance with cells in the culture tank, the culture solution containing metabolites of cultured cells is sent back into the preceding state hemodialysis unit or the culture solution container through an output port of the cell culture tank and the culture solution circulation pipeline.

The invention discloses a bilateral container loader, and aims to provide a loader with a self-walking function, which can meet transport requirement after being furled, and can operate ground-to-ground and vehicle to vehicle loading and unloading operation. The loader comprises an engine, a frame, two hoisting systems with the same structure respectively installed on two ends of the frame, a self-walking system, a rear axle and a suspension system. The hoisting system consists of a suspension arm device and a landing leg device, the suspension arm device comprises a guide pillar and a T-shaped lifting arm connected with a lifting driving system, two sides of the horizontal part of the T-shaped lifting arm are respectively hinged with a folding type horizontal arm stretching mechanism, and the landing leg device comprises two supporting units each of which comprises a fixed support seat, a horizontal expansion support seat, a swing leg, a connecting bar, a swing driving mechanism and a horizontal expansion driving mechanism. The self-walking system comprises two wheels, a support shaft for connecting the two wheels, a support, an overturning hydraulic cylinder, a steering hydraulic cylinder, a square steering shaft and a self-walking driving mechanism.

The embodiment of the invention discloses a method and a system for device-to-device communication on a wireless local area network frequency band. The method comprises the following steps: a base station receives a D2D communication request message reported by a first mobile terminal, determines the configuration information of a WiFi module for processing a communication service on the WLAN frequency band according to the WiFi module information of the first mobile terminal and a second mobile terminal while determining that the communication service between the first mobile terminal and the second mobile terminal is processed on the WLAN frequency band, indicates one of the first mobile terminal and the second mobile terminal to initiate an IBSS on the basis of the configuration information of the WiFi module, and notifies the other mobile terminal to join the IBSS, so that the first mobile terminal and the second mobile terminal establish WiFi connection and process the communication service on the WLAN frequency band through D2D communication according to the configuration information of the WiFi module. The method and the system disclosed by the embodiment of the invention are capable of avoiding occupying the authorized frequency bands of the traditional cellular network, and generating interference on the traditional cellular communication service.

The present invention is process of producing natural gas substitute with dimethyl ether as material, and the natural gas substitute produced with dimethyl ether as material may be used to replace available fuel gas partially or completely. The natural gas substitute has high burning rate, environment friendship, reasonable performance/cost ratio and other advantages. It may produced with available apparatus in fuel gas producing enterprise, and has excellent application foreground.

The invention discloses a method for achieving an arc suppression coil function by using a high-voltage cascading type SVG. The method includes the steps of 1) monitoring whether a system runs normally or not, 2) when the system runs normally, starting a reactive compensation mode and a harmonic suppression function mode, controlling a cascading type SVG converter to perform system reactive compensation and harmonic cancellation, meanwhile, monitoring bus voltage, judging whether a neutral point of the bus voltage deviates and generates zero-sequence voltage or not, if the neutral point of the bus voltage deviates and generates the zero-sequence voltage, executing the step 3), and otherwise, keeping the current operation state, 3) starting an arc suppression coil function mode, controlling the cascading type SVG converter to compensate ungrounded phase grounding capacitive current, and meanwhile monitoring the bus voltage, judging whether deviation and the zero-sequence voltage of the neutral point of the bus voltage disappear or not, if deviation and the zero-sequence voltage of the neutral point of the bus voltage disappear, executing the step 2), and otherwise keeping the current operation state. The method has the advantages of being simple to achieve and capable of adjusting automatically, having the dual function modes, and being flexible in mode conversion.

The invention relates to a low-nitrogen-emission combustion chamber and a gas turbine including the combustion chamber. The combustion chamber comprises a combustion chamber head part and a combustion chamber cylinder connected up and down; the combustion chamber head part includes a secondary gas mechanism, a main gas mechanism encircled at the external of the secondary gas mechanism, and an air inlet formed above the secondary gas mechanism and the main gas mechanism; the combustion chamber cylinder includes an inner flame cylinder for respectively communicating with the secondary gas mechanism, the main gas mechanism and the air inlet, and an outer flame cylinder encircled at the external of the inner flame cylinder and communicating with the air inlet; and a combustion chamber outlet is formed in the bottom of the inner flame cylinder. Compared with the prior art, the combustion chamber can prominently reduce the nitrogen oxide emission of a micro gas turbine combustion chamber, improves the combustion efficiency, and realizes wide-load, low-emission and high-efficiency stable operation under 40-100%; and the gas flows in a main gas pipe and a secondary gas pipe are adjusted, so that the simple cycle and the bring-back thermal cycle can be flexibly converted, and the economy is excellent.

A multifunctional sand dust environmental simulation device with a changeable test section is characterized in that a circulation air flue (1) is included, the circulation air flue (1) comprises a changeable test section, and the changeable test section comprises a test chamber (2) and mobile air flue parts (101, 102, 103 and 104). The invention provides the multifunctional sand dust environmental simulation device which can be used for carrying out integral testing to large-scale test subjects (such as armored vehicles). The multifunctional sand dust environmental simulation device not only can be used for carrying out sand blowing and dust blowing tests to small and medium-sized test objects, but also can be used for carrying out sand blowing and dust blowing tests to the entireties of the large-scale test objects (such as vehicles), can form gas-solid two-phase flow with uniform sand dust concentration and velocity distribution inside an effective experimental space, thereby achieving the technical effects of meeting testing conditions and improving equipment utilization ratio.

The invention discloses a broadband circularly-polarized omnidirectional antenna based on rectangular rings. The antenna comprises an antenna radiation part, a flexible dielectric slab, a broadband feed network, a feed substrate and a metal reflection post, wherein the antenna radiation part comprises the four broadband rectangular rings; each rectangular ring consists of a primary radiation ring and a parasitic ring; gaps are formed on the rings; the flexible dielectric slab is bent into a hollow cylinder; the four broadband rectangular rings are equationally, uniformly and circularly arrayed on the flexible dielectric slab; the metal reflection post is placed on a central axis of the hollow dielectric cylinder; and the broadband feed network is printed on the front surface and the back surface of the feed substrate, and horizontally placed in the center of the hollow dielectric cylinder to achieve constant-amplitude and same-phase feed to the four broadband rectangular rings. The antenna has the advantages that the antenna can flexibly achieve left and right circular polarization, and is good in omnidirectional property and broadband. The antenna is applicable to the field of mobile communication base stations.

The invention discloses a water surface cleaning system. The water surface cleaning system comprises a salvaging box, wherein a front body salvaging module is fixedly arranged on the front side of the salvaging box, and a power supply module is fixedly arranged on the front body salvaging module; a power supply module is fixedly arranged at the tail of the salvaging box; a rear body aerating module is arranged on two sides, close to the tail of the salvaging box, of the salvaging box; a mounting box is fixedly arranged in the salvaging box; a control module is fixedly arranged on the mounting box; a signal acquisition module and a communication module are also fixedly arranged on the mounting box; the front body salvaging module, the power supply module, the signal acquisition module and the communication module are separately connected with the control module through wires; the control module is connected with the power supply module through the wires; and a remote controller is connected to the communication module in a wireless connection manner. Through the adoption of the water surface cleaning system disclosed by the invention, the problem that in the prior art, decontamination workload for manually salvaging water surface floaters in a small-scale watercourse drainage area, a small-scale lake or an artificial lake is large is solved. The invention further provides a method for cleaning the water surface using the water surface cleaning system.

The invention discloses an illuminating lamp unit device for neurosurgery. The illuminating lamp unit device comprises a left shell and a right shell; a left lifting oil cylinder is arranged at the upper part of the left shell; a right lifting oil cylinder is arranged at the upper part of the right shell; an oil cylinder controller is arranged on the left lifting oil cylinder; the upper part of the left lifting oil cylinder and the upper part of the right lifting oil cylinder are each provided with a top side frame; one side of each top side frame is provided with a horizontal oil cylinder; each horizontal oil cylinder is connected with a cross lever; the upper part of each cross lever is provided with a battery unit; each battery unit is connected with the corresponding top side frame through a wire protective sleeve; the lower part of each cross lever is matched with a sliding seat; one side of each sliding seat is provided with a positioning rod; each sliding seat is in running fit with a telescopic rod through an upright post; one end of each telescopic rod is matched with a lamp holder through a damping shaft. The illuminating lamp unit device for neurosurgery is flexible to move, convenient in positioning, adjustable in height and span, large in illumination range, adjustable in illumination angle, simple to operate and quite applicable to neurosurgery.