238results about How to "Few links" patented technology

The invention discloses a soft base station system and process of synchronizing based on optical fiber zooming out. Presently, direct sending stations are used to expand the signal coverage in the mobile communication network, but noise level and low sensitivity are also brought in. The soft base station system based on optical fiber will transform the radio frequency signal directly coupled from the large capacity base station into optical signal through analog optical modulation, which will be transmitted to the soft base station via. the optical fiber, the soft base station will transform the optical signal into the electrical signal, which will radiate to the needed coverage via the service antenna. Apart from all the advantages resulted from using digital transmission and receiving machine, the soft base station has bee proved to increase system capacity, improve the network quality and reduce the occurrence of disconnection.

The invention provides a modularized box type charging and battery swapping station used for replacing a battery of an electric car. The charging and battery swapping station comprises a central monitoring room 1, a battery swapping robot 2 and a charging and battery swapping box 3, wherein the central monitoring room 1 is used for monitoring the charging and battery swapping station, the battery swapping robot 2 is located between the charging and battery swapping circuit 3 and the electric cars provided with batteries to be replaced, and the battery between the electric cars provided with batteries to be replaced can be replaced; and a battery storage rack 301, a battery charger cabinet 302, a monitoring cabinet 303, a distribution cabinet 304, a temperature control system 305 and an access path 306 are arranged in the charging and battery swapping box 3. The modularized box type charging and battery swapping station, provided by the invention, has the advantages of strong adaptability, flexible configuration and expansibility, small floor space, high working efficiency, short construction period, benefit for large-scale popularization and construction, high automation degree, smaller device maintenance amount, simple structure and low fault rate.

The invention relates to a gravity-flotation joint separation technology for coking middlings and belongs to the technical field of mineral processing. The technology comprises the steps of crushing the coking middlings, water medium whirlcone gravity concentration, and ore grinding-floatation of gravity concentration middle products. The technology is characterized in that the water medium whirlcone is adopted for gravity concentration, so that equipment is few in link and simple in technology; no heavy media need consuming, so that operation cost is low; head pulling or tail throwing is adopted for gravity concentration, so that subsequent ore grinding materials are made to be reduced in number, and energy consumption is saved.

The invention discloses a self-adaptive tape winding device and a packing method based on the same. The winding device comprises a rack body, clamping plates, an object bearing table, a tape rack, a cutter mechanism and a control mechanism, wherein a first screw rod is pivoted to an upper end of the rack body; a first servo motor is connected to one end of the first screw rod; the first servo motor drives the first screw rod to rotate; thread structures in forward and reverse directions are formed in the first screw rod; two connection plates are connected to the first screw rod through threads; the first screw rod drives the two connection plates to move forwardly or reversely during a rotation process; the packing method comprises the steps that step 1, preparation for a packing processis finished; step 2, a tape is pulled out from the tape rack; step 3, a to-be-packed paper carton is placed on the object bearing table; step 4, the tape on the tape rack is wound for multiple turns around a sealing opening of the packing paper carton; step 5, the cutter is driven by a stirring sheet to cut off the tape; and step 6, the packing paper carton which is packed is taken off. The self-adaptive tape winding device has the beneficial effects that universality is high; manufacturing cost is low; and production is easy.

The invention relates to the filed of wireless communication, and discloses a sensing network node and an information transmitting method thereof. The sensing network node is simultaneously provided with a sensing network transceiving unit and a cellular network transceiving unit, so that a locally self-organized sensing network has the capacity of transmitting valuable information to remote equipment in a low cost mode. The sensing network transceiving unit and the cellular network transceiving unit are achieved by the same wireless transceiver physically so as to save cost. An authorized frequency band is used between sensing network nodes in a cognitive radio mode to fully utilize wireless resources. A non-authorized frequency band is used between the sensing network nodes for communication to radically avoid interference between a sensing network and a cellular network using the authorized frequency band. The non-authorized frequency band used between the sensing network nodes andthe authorized frequency band used by the cellular network can be adjacent.

The invention relates to an individualized biomimetic dental implant and a manufacture method thereof. The invention is characterized in that the dental implant comprises an implant body for imitating the original tooth root tissue structure of a patient's missing tooth and also comprises a biomimetic artificial alveolar bone structure outer-layer for imitating a patient's alveolar bone tissue structure. The biomimetic artificial alveolar bone structure outer-layer and the external surface of the implant body are combined as a whole. The biomimetic tooth root implant body's outer layer is a 3D printed biomimetic artificial alveolar bone structure outer-layer which is combined with the implant body to form a whole structure, and is similar to the tissue structures of missing tooth's original tooth root and alveolar bone. Thus, the invention provides an ideal implementation scheme of a biomimetic artificial tooth root structure. What is the most important is that the invention provides a structure which is beneficial to bone marrow stem cell and osteogenesis-related cell adhesion, proliferation and mineralization and gives play to final osteogenic function and has good bioactivity. Therefore, a microenvironment for promoting osteogenesis is created, osteocyte generation is induced, and early rapid and firm synosteosis is realized.

The invention discloses a realizing method for internet of things based on a trusted operation order remote-control self-control device. The realizing method comprises the following steps: embedding an SD card into a remote self-control device, inserting an encryption card into a server at an operation order control center end of the internet of things, respectively establishing an encryption system at an internet of things operation order control center end and each remote self-control device end by adopting a symmetric cryptographic algorithm, forming a three-dimensional matrix through a secret key seed to establish a combined secret key generating algorithm, generating a symmetric secret key in real time, changing once at a time, encrypting the operation order into a ciphertext through the internet of things operation order control center end encryption system, sending to the remote self-control device end, after performing decryption and integrity verification on the received operation order ciphertext through the remote self-control device encryption system, determining whether to perform relevant operation of the operation order, thereby realizing trusted remote control of the internet of things operation order control center to the remote self-control device.

The present invention provides a test device and method for simulating field electric energy measurement.The device for simulating field electric energy measurement is a novel simulating device designed according to the state electric energy meter field standard and DL/T448-2000, includes a real load portion and a virtual load portion in principle.The real load portion is composed of current voltage transformer, second wiring thereof, and electric energy meter, is a single bus double loop, can simulate various real wirings in the field, thus ensuring the accuracy and reliability of the electric energy measurement, and avoiding bringing hidden trouble to the safe operation of the power system.The virtual load is composed of three-phase program control test power supply and voltage, and current wiring switch box, has the characteristics of stability, strong function, easy use and the like, can be used by power supply department, metering department, school and training center for explaining practical phenomena such as false wiring of three-phase three-wire, three-phase four-wire active and reactive electric power meters to students, making the teaching closer to the practical work.

The invention provides a method and system for opening a door by scanning a code, a smart cabinet and a terminal. The method for opening the door by scanning the code is used for the smart cabinet andcomprises the steps of S102, detecting the type of the two-dimensional code or the barcode scanned by a scanner and a cabinet number corresponding to the code; S104, judging whether or not the two-dimensional code or the barcode belongs to item storage codes in type, and if yes, executing S106; S106, sending out a door opening signal to open the cabinet door corresponding to the cabinet number, and executing S108; S108, judging whether or not the cabinet door is opened, if yes, executing S110, and if not, executing S112; S110, uploading item storage information to a server so that the servercan push the item storage information to the user terminal; S112, uploading fault information to the server, redistributing the cabinet door, and executing S108. By means of the method for opening thedoor by scanning the code, the scanner is applied to multiple links, and the hardware utilization efficiency and the user experience are improved.

The invention provides a method for manufacturing a matrix by the adoption of a 3D printing technology. The method comprises the steps that a sample and a sample image are selected according to needs; the selected sample image is designed and remade through manual drawing, and a redesigned sample image is obtained; the redesigned sample image is subjected to three-dimensional forming treatment, and a three-dimensional digital model of the sample is obtained; and the three-dimensional digital model of the sample is guided into a 3D printer, the machine is edited for printing treatment, and a printed matrix is formed. The method provides a novel rapid lacquer matrix manufacturing mode, the defect occurring when a traditional matrix is manufactured is overcome, and as the photosensitive resin 3D printed matrix and paper matrix completeness is high and the surface is smooth, financial resource, material and labor consumption caused by matrix manufacturing in the earlier stage is greatly reduced and the technique processes are reduced. The matrix can be obtained only by slight polishing, priming and lacquer coating. Time and labor are saved, and more crafts and techniques can be tried.

The invention belongs to the technical field of waste aluminum reusing, and particularly relates to a method and device for preparing powder for selective laser melting by recovering waste aluminum and a product. According to the method, the device and the product, waste aluminum recovering remelting technology and gas atomization powdering technology can be combined into a whole, the waste aluminum is directly prepared into the powder for laser selective melting, moreover, salt mixture components are added in the melting process so that the final powder can be uniform in microstructure, the crystal grains can be refined, and the product quality can be improved.

The invention discloses a universal post processing method for a multi-axis numerical control machine tool. The universal post processing method comprises the following steps: (1) establishing a machine tool motion transformation chain according to the structure of the machine tool; (2) establishing a transformation matrix QWT from a cutter to a workpiece according to the machine tool motion transformation chain established in the step (1); (3) inputting motion coordinates Delta 1 for all translation shafts of the machine tool at an initial cutter position CL1; (4) calculating motion coordinates Delta i+1 for all the translation shafts at any follow-up cutter position CL i+1 of the initial cutter position CL1; and (5) judging whether the value of i is smaller than n, if yes, returning to the step (4.1) and continuing calculation after the value of i is added to 1, and if not, ending the calculation and outputting the motion coordinates of the translation shafts of the machine tool andthe motion coordinates of the rotating shafts of the machine tool which correspond to all the cutter positions. The universal post processing method for the multi-axis numerical control machine tool overcomes the defect that manual deduction is required in a computation formula for the motion coordinates of all the shafts in the machine tool in the general post processing method, can meet the post processing requirements of various multi-axis numerical control machines and has the advantages of high solving speed and high solving precision.

A method includes attaching an award draw card on commodity as a present, obtaining award draw number on the card by the buyer, obtaining money award immediately by inputting award draw number through dialing to award draw phone or sensing short message or logging in network, transferring money award to phone account or credit card account of his own or the third party, or logging on cash network to exchange commodity you want for yourself or for sending it to the third party as gift.

The invention discloses a mobile phone off-line authentication method. A SD card is inserted in the mobile phone of the user, symmetric cryptographic algorithm is adopted for establishing encryption system and combined symmetric key generation algorithm is adopted for real time generating symmetric key, change is generated at every time for real time updating and effectively managing the key; in each user mobile phone, key seed corresponding to friend circle user is beforehand encrypted into the ciphertext and stored for ensuring storage safety of key seed of the friend circle user, and user identity information center is established on network, the key seeds of all users are encrypted into the ciphertext and stored in the user identity information center for ensuring the storage safety of key seeds of all users, and the safety downloading of the key seeds of friend circle users of mobile phone end is also ensured, thus the off-line authentication between the mobile phone and the user can be realized.

The invention provides a detoxification method of chromium-containing slag entering metallurgical blast furnace by using coal spraying process form. The method comprises the following steps: first drying and grinding the chromium-containing slag, then uniformly blending chromium-containing slag in an amount of 1 to 15 percent of the weight of coal powder into the coal powder, spraying the coal powder blended with the chromium-containing slag into a blast furnace cylinder from a blast furnace coal-spraying system, detoxifying the hexavalent chromium in the chromium-containing slag at the high temperature of the blast furnace under the reducing atmosphere, reducing the hexavalent chromium into trivalent chromium, and finally reducing the trivalent chromium into a chromium metal, wherein 92 to 98 percent of the chromium metal is melted into molten iron and 2 to 8 percent of the chromium metal enters the furnace slag; and meanwhile, reducing the iron oxide in the chromium-containing slag into iron metal for entering the molten iron. By utilizing the sealed blast furnace coal-spraying system to directly spray the chromium-containing slag into the blast furnace cylinder, the method has the advantages of few links, no pollution, thorough detoxification due to direct and full utilization of the high-temperature reducing atmosphere, full recycling and lowest cost compared with that of the conventional methods for treating chromium-containing slag.

A slant-plate flow sensor is composed of shell, measuring tube fixed in the shell and with hollow space as measuring channel, measuring plate in the measuring tube linked to the lower end of measuring plate, restoration spring between measuring tube and plate, a magnet on the measuring plate and magnetosensitive element fixed to shell and opposite to said magnet. When fluid pushes the measuring plate to make it slant, said mangnetosensitive element can measure the change of magnetic field and output flow signal. Its advantages are high precision, low resistance to fluid, simple structure and long service life.