98results about How to "Shorten retrofit time" patented technology

The invention provides a self-adapting method and device for a base band unit equipment RRU interface protocol based on an FPGA. The FPGA comprises a type register. The method comprises the steps that an RRU loads the FPGA; the FPGA comprises one or more interface protocol types; the RRU has the access to a BBU by adopting any interface protocol type; the RRU detects the current interface protocol type of the BBU; the RRU records corresponding type marks in the cache type register according to the current interface protocol type; the RRU carries out configuration according to the interface protocol types corresponding to the type marks. The method and device are used for detecting and adjusting the interface protocol, guaranteeing uniformity of the protocol and an opposite-end equipment interface protocol, lowering complexity for achieving normal communication, shortening the transformation time that a TD-SCDMA base station is evolved to a TD-LTE base station, and guaranteeing the normal communication of equipment in common networking.

The invention discloses a 40 DEG C high-specific-activity xylanase mutant and a construction method and application thereof, and relates to the fields of genetic engineering and heredity engineering.An N terminal truncate mutant XYL10C-delta N of GH10 family high temperature xylanase XYL10C from Bispora sp.MEY-1 is used as a female parent, and a molecular biology technique is adopted for performing fixed point mutation after-expression on amino acids. Under a reformation condition, the specific activity of the xylanase variant under the 40 DEG C is notably improved compared with the specificactivity of wild type. The heat stability of the mutant is improved, resisting of enzymes to high-temperature granulation process is facilitated, and finally, inactivation cannot be caused. The condition is created for application to feeds. Under the acid environment, the stability is improved, degradation of lignocellulose to reducing sugar is facilitated, and the application prospect is widened.

The invention provides a method and system for collecting substation area protection data based on telecontrol equipment. The method comprises the steps that the telecontrol communication equipment collects the substation area protection data in a station, the substation area protection data are encapsulated into data messages according to an IEC104 communication protocol, and the data messages are sent to a substation area protection control device through the Ethernet; the data messages are received by the substation area protection control device and are analyzed according to the IEC104 communication protocol, and the corresponding substation area protection data are obtained and are written in an internal shared memory. A primary device and a secondary device for collecting information are prevented from being added to a transformer substation, and implementation cost for substation area protection is lowered; the substation area protection control device can efficiently acquire data information from the telecontrol communication equipment at high speed, and the change on the internal structure of the transformer substation and the influence on the operation of the transformer substation are avoided.

The invention discloses an acid-resistant amylase mutant and a preparation method thereof, belonging to the field of genetic engineering. In the invention, by using Bacillus subtilis amylase as a female parent, the Bacillus subtilis amylase sequence is subjected to site-directed mutagenesis by a molecular biology technique, and the optimum reaction pH value of the Bacillus subtilis amylase is converted into 4.5 from 7.0 of the control (before mutagenesis) sample under such transformation conditions; and after the mutagenesis, the catalytic efficiency of the amylase is enhanced by 5 times under the pH value of 4.5. The scheme disclosed by the invention can greatly enhance the acid resistance of the amylase, and provides foundation for industrial production. The mutagenesis has important instruction meanings for transforming properties of other enzymes.

The invention discloses a high-catalytic-efficiency xylanase mutant as well as a construction method and an application thereof, which relate to the field of gene engineering and genetic engineering.The method comprises the following steps: GH10 family high-temperature xylanase derived from Bispora sp. MEY-1 is taken as a male parent, gH10 family xylanase XylE derived from Penicillium canescens is used as a female parent, a molecular biological technology is adopted to replace a segment corresponding to the female parent with a segment in a male parent, and then segment combination and expression are carried out. Under the modification condition, the specific activity and the thermal stability of the xylanase mutant are remarkably improved compared with those of a wild type (before mutation). According to the method, the catalytic efficiency and temperature tolerance of xylanase are greatly improved, and conditions are created for the method in the field of industrial production.

The invention discloses a thermostable amylase mutant and a preparation method and application thereof, belonging to the field of genetic engineering. Bacillus stearothermophilus amylase is taken as a female parent, the N-terminal area of the bacillus stearothermophilus amylase and oligopeptide are connected through PT-linker so as to obtain the mutant, and the amino acid sequence of the oligopeptide is shown as SEQIDNO.1. Under the transformation condition, the bacillus stearothermophilus amylase is improved to be 7h from 4h of a comparison example (before mutation) in half-life period at 95DEG C. The method remarkably improves the thermostability of the amylase and provides a foundation for industrial production of the amylase.

The invention discloses an on-line visual remote control terminal and method used for transformer station background upgrading. First, an original background of a transformer station sends remote control selection and execution commands to a measuring and control device and whether parameter configuration of a remote control debugging terminal is normal is determined; then a new background of the transformer station sends remote control selection and execution commands to the same remote control object of the measuring and control device; whether the remote control function of the new background is normal is determined through a voice broadcast function of the remote control debugging terminal, a liquid crystal display screen and an LED indicating lamp; the above steps are repeated, and therefore on-line remote control debugging of each remote control object of the transformer station is completed. Remote control accuracy and reliability can be raised, reconstruction time can be saved greatly, therefore reconstruction cost is saved, and good technical and economic meanings can be achieved.

The invention discloses a manufacturing method of a tyre with colorful patterns, comprising the following steps of manufacturing a tyre body of the tyre by adopting the prior art; printing or coating colorful printing ink on the outer side of the tyre body according to set patterns; carrying out low-energy electron beam radiation on the colorful printing ink to make the colorful printing ink solidify at the tyre sides. The invention also discloses an automatic production line of the tyre with the colorful patterns. The automatic production line of the tyre comprises an automatic control system, a production transmission line, a printing or coating device and an irradiation solidification device. According to the manufacturing method and the automatic production line of the tyre with the colorful patterns, the existing tyre production facility does not need to be remoulded, the remoulding time of the production facility of a tyre manufacturer is short, the economic cost is small, the production cost of the colorful tyre is low, the degree of automation is high, the whole production efficiency is high, important social and economic benefits are realized, and the manufacturing method and the automatic production line of the tyre are worth of popularization and application.

The invention discloses a method for transforming a shield tunneling system adapting to 36-degree pipe segments into a shield tunneling system adapting to 22.5-degree pipe segments. Original propulsion cylinder arrangement which adopts 30 odd-numbered and even-numbered cylinders distributed at an interval of 18 degrees and adapts to 36-degree pipe segments is divided into four quadrants according to two axes. First, second, third and fourth support shoes in the first quadrant of propulsion cylinders are transformed to form four new sets of support shoes, and transformation in the symmetrical positions of the other three quadrants is the same with transformation on the first quadrant, so that there is a cylinder corresponding to the position where a 22.5 pipe segment capping block appears in all 16 adjusting positions within 360 degrees of the circumference. The problem that a shield adapting to 36-degree pipe segments cannot adapt to assembling of 22.5-degree pipe segments is solved, the transformation time is shortened, the period in which shield equipment stops waiting due to project continuing interval is shortened, and the adaptability of equipment is enhanced.

The invention discloses a conducting wire taking-up and paying-off device of a power supply circuit and a taking-up and paying-off method, and relates to the taking-up and paying-off device for taking up and paying off a power supply conducting wire, corresponding shaft holes are formed at the centers of an inner side plate and an outer side plate, a rotating shaft is arranged in the shaft holes,a plurality of connecting rod holes are correspondingly arranged on the inner side plate and the outer side plate, connecting rods are arranged in the connecting rod holes, a plurality of symmetricalfixing holes are arranged on the inner side plate, and screw threads in the fixing holes are connected on a driving wheel hub of a tractor or a vehicle. In addition, the inner side plate, the outer side plate, the rotating shaft and the connecting rods are in a detachable connecting structure; and a plurality of support rods are arranged outside the inner side plate and the outer side plate alongthe longitudinal direction, and edge rings are connected outside the support rods. The taking-up and paying-off device has the characteristics of being simple in structure, low in cost, fast for taking up and paying off, convenient for operation, convenient for disassembly and assembly, strong in practicability, low in failure rate, high in safety and strong in maneuverability, and can fully utilize a small four-wheel tractor which is common in rural areas as power for mechanically taking up and paying off.

The invention relates to a ship thrust distribution method capable of being used in different navigational speed modes. The ship thrust distribution method comprises the following steps: (1) establishing thrust calculation mathematical models of various propellers of a ship; (2) establishing a rudder force calculation mathematical model of the ship; (3) establishing a ship stress model based on the thrust calculation mathematical model and the rudder force calculation mathematical model of various propellers of the ship; (4) establishing an optimization objective function based on the optimalpower consumption and distribution effect of various propellers, and establishing corresponding constraint conditions based on the mechanical properties of various propellers and the ship stress model; and (5) solving the optimization objective function by using an optimization algorithm to obtain an actual thrust value of each thruster. Thrust distribution optimization in low-speed and medium-high-speed modes can be achieved through the combination of double propellers, double rudders and lateral propellers.

The invention relates to a single-column pier beam bridge and a reinforcement and transformation method of the single-column pier beam bridge, and belongs to the technical field of bridge reinforcement and transformation. The method comprises the following steps: (1) measuring an inclination angle between a main beam side part and a pier side part; (2) prefabricating an anti-overturning device, wherein the anti-overturning device comprises a wedge-shaped mother plate, a pull rod clamping groove and a pull rod; (3) driving anchor bolts into the preset positions of the side surface parts, and fixing the upper wedge-shaped mother board and the lower wedge-shaped mother board on the corresponding side surface parts by using nuts; (4) the two expansion ends of each pull rod are clamped into thegroove cavities of the upper pull rod clamping groove and the lower pull rod clamping groove from the open ends of the clamping grooves, and movable gaps can be reserved between the two expansion ends of each pull rod and the cavity walls of the corresponding clamping groove cavity; and (5) filling a groove cavity of the pull rod clamping groove with a non-hydrophilic lubricant, and sealing the groove cavity of the pull rod clamping groove to form a sealed cavity. The reinforcement and transformation method is convenient to construct, low in cost and convenient to replace in the subsequent maintenance process, and can be widely applied to the field of bridge reinforcement and transformation.

The invention discloses a conductive core plate and a manufacturing method. The conductive core plate comprises an insulating material layer, a metal conductive circuit layer, a packaging adhesive film layer and a back plate layer in sequence from top to bottom, wherein all the layers are bonded in a low-temperature heating mode; the metal conductive circuit layer and the packaging adhesive film layer are compounded and bonded, and a conductive circuit diagram is arranged on the metal conductive circuit layer; a plurality of small holes are formed in the insulating material layer, and the positions of the holes correspond to the positions of electrode points on the battery piece; the conductive circuit diagram takes set unit patterns as a basis, and the unit patterns are arranged above thebattery piece in an array manner. According to the invention, the conductive core plate adopts a longitudinal cardinal number column 13*12 half-cut battery arrangement mode, and the cardinal number column battery arrangement is achieved; meanwhile, the number of the batteries connected with the diodes is equal, the installation direction of a junction box is parallel to the short edges of the assembly and is the same as the position of a junction box of a conventional assembly, and if the connection mode is a solder strip assembly, the connection mode is hardly achieved, and the equipment transformation cost can be effectively reduced at the same time.

The invention discloses an amylase mutant having improved heat stability, a construction method and application of the amylase mutant, belonging to the genetic engineering field. The sequence which is shown by SEQ ID NO.1 is a starting sequence, the 193rd asparagine is replaced by phenylalanine, or the 206th methionine is replaced by phenylalanine, or the 240th lysine is replaced by arginine, or the 242nd serine is replaced by glutamine or alanine, or the 180th glycine and the 181st isoleucine are missed, or the above methods are combined freely to obtain the amylase mutant. Under a transformation condition, the half-life period of thermophilic fat bacillus amylase at 95 DEG.C is increased to 240 min from 10 min which is the half-life period of the contrast example before mutation, the heat stability of the amylase is significantly improved, and the amylase mutant lays the foundation for industrial production.

The invention discloses a D,D-carboxypeptidase DacA mutant with improved catalysis efficiency and a preparation method thereof, belonging to the fields of genetic engineering and enzyme engineering. D,D-carboxypeptidase DacA from Escherichia coli BL21 is used as a female parent, key sites and a mutation manner are determined based on enzyme structure analysis, and the DacA mutant with improved catalysis efficiency is obtained through fixed point mutation by using a molecular biological technology. Under the modification condition, the catalysis efficiency constant k<cat> of E.coli D,D-carboxypeptidase DacA mutant K113G is improved at most, from 6543.4s<-1> to 9428.1s<-1>. Due to adoption of the method, the catalysis efficiency of the D,D-carboxypeptidase DacA is improved remarkably, layinga foundation for the application of metabolizing and modifying E.coli to improve exocytosis level and the like. The method has an important guiding significance in property modification of other enzymes.

The invention provides a high-specific-activity high-catalytic-efficiency amylase mutant and a preparation method and application thereof and relates to the field of gene engineering. Acid amylase derived from Talaromyces leycettanus JCM12802 is used as a female parent, and the wild type is subjected to site-directed mutagenesis by means of molecular biological techniques. Under the modification condition, the amylase mutant has significantly higher catalytic efficiency and specific activity than the wild (before mutation) female parent. By using the scheme, it is possible to greatly increase the specific activity and acting conditions of amylase, and basis is provided for the amylase in industrial production field. The scheme is of important guidance for increasing the catalytic efficiency and specific activity of amylase and other enzymes.

The embodiment of the invention provides an applet updating method and device. The method comprises: obtaining an applet file corresponding to a to-be-converted target applet; obtaining all global variables contained in the applet file; and updating all the global variables so as to connect the target applet to a service platform. According to the embodiment of the invention, the global variable in the applet file is updated to connect the applet to the service platform, so that only the global variable of the applet needs to be redefined in the process of converting the applet into the appletof the service platform, the service amount of service personnel is reduced, and the modification time of the applet is shortened.

The invention provides a quick coupling for fluid loading and unloading. The quick coupling comprises a valve, a fixed inner ring, a guide inner ring, an outer ring, a nut flange and a hand wheel, wherein the valve is arranged in the guide inner ring, the guide inner ring is connected with the fixed inner ring, and the outer ring and the hand wheel are respectively connected with the nut flange; the rear end of the valve is of a screw structure, and thread is arranged in the nut flange and matched with a thread on the screw structure; guide holes are formed in the edge of the end surface of the fixed inner ring, or guide holes are correspondingly formed in the edge of the end surface of the fixed inner ring and the edge of the end surface of the guide inner ring; an interlocking limiting guide rod is arranged in each guide hole; a guide centre is fixed to the rear end of each interlocking limiting guide rod, a spiral groove is formed in the outer surface of the outer ring, and the guide centres are located in the spiral groove; the thread of the spiral groove is opposite to the thread of the screw structure in rotating direction; a sliding-moving device is fixed to the valve and can drive the valve to slide in the guide inner ring along the axis. and a limiting structure is arranged on the fixed inner ring. The quick coupling has the advantages that a tank car does not need tobe transformed, and operation is easy.

The invention relates to the technical field of outdoor electrical devices, in particular to a ring main unit distribution automation reconstruction device. The ring main unit distribution automation reconstruction device comprises a secondary electric power supply device, an automation device and a switch cabinet electric operation mechanism, wherein a small CT passive electricity obtaining device serves as the secondary electric power supply device, the small CT passive electricity obtaining device is composed of an open-type electricity obtaining CT, a current-to-voltage device and a lithium iron phosphate storage battery, and the automation device is composed of a GPRS module, a communication manager and a small distributed FTU device. Due to the fact that the small CT passive electricity obtaining device is used instead of a PT to provide a secondary electric power supply, the small CT passive electricity obtaining device is small in occupied space, reconstruction can be directly carried out in an original outdoor box, and the time for reconstruction is greatly shortened; due to the fact that the small distributed FTU device is used, the defect that a centralized DTU screen is overlarge in size and cannot be installed in internal space of the original outdoor box is overcome; the ring main unit distribution automation reconstruction device can be universally applied to all the ring main units in the market. The ring main unit distribution automation reconstruction device has high practicability and universality, and is not limited by space.

The invention discloses a ditch cover plate for supporting underground transportation of a railless rubber-tyred vehicle. The ditch cover plate for supporting underground transportation of the railless rubber-tyred vehicle comprises a plurality of fixed cover plate sets and a plurality of movable cover plate sets; each fixed cover plate set comprises a plurality of cover plates, each movable coverplate set comprises a plurality of cover plates; the fixed cover plate sets and the movable cover plate sets are arranged at intervals along the length direction of a ditch; the movable cover plate sets are detachably arranged above the underground ditch and are used for cleaning the underground ditch after being disassembled; each cover plate is formed by connecting a plurality of ground rail tracks side by side; and the ground rail tracks are ground rail tracks disassembled in underground auxiliary transportation railless transformation. The ditch cover plate is formed by transforming the waste ground rail tracks, waste resources are well utilized while load bearing of the ditch cover plate is guaranteed, waste is turned into wealth, the transformation process is simplified, the transformation time and capital investment in transformation are greatly saved, waste ground rail track accumulation is avoided, and the transformation time is saved.