17results about How to "Many connections" patented technology

The invention discloses a rate division multiple access communication network total rate optimization method and system, and belongs to the technical field of communication. The method comprises the following steps: constructing a downlink rate segmentation multiple access communication system model based on an intelligent reflecting surface; the communication system model comprises a base station, an intelligent reflecting surface and a user side; grouping users in the user side, and constructing a hierarchical rate segmentation multiple access model based on user grouping; the hierarchical rate segmentation multiple access model comprises a corresponding relation between the user group and information flow generated by the base station; and according to the hierarchical rate segmentation multiple access model and the intelligent reflecting surface, assisting downlink communication between the base station and the user side. According to the method and the device, the layered rate division multiple access model is constructed by grouping the users, and the system performance is improved by combining the intelligent reflecting surface passive beam forming and the rate division multiple access active beam forming, so that the problems of spectrum resource shortage and signal interference can be solved, and the spectrum efficiency is greatly improved.

An on-line monitoring system for a storage battery of a transformer substation comprises a storage battery monitoring host, a detection module, a battery equalization module, an emergency processing module and an alarm module, and the storage battery monitoring host judges whether the storage battery breaks down or not; when the storage battery monitoring host monitors that the charge states of the single batteries in the storage battery pack are unbalanced, the corresponding single batteries are controlled to charge and discharge, so that the charge states of the single batteries are balanced; when the storage battery pack breaks down, emergency treatment is carried out on the storage battery pack; the alarm module is used for giving an alarm according to the alarm instruction transmitted by the storage battery monitoring host. The on-line monitoring system for the storage battery of the transformer substation integrates on-line monitoring, fault intelligent processing and alarming of the storage battery, can provide health diagnosis and efficiency guarantee of the battery, and can quickly and intelligently take corresponding measures to solve corresponding battery faults when the storage battery breaks down, so that the safety of the storage battery is improved. Therefore, the safety and reliability of a power supply system are ensured.

The invention provides a polypeptide ligase mutant and a preparation method of polypeptide. The polypeptide ligase mutant comprises (a) a protein mutated on the basis of an amino acid sequence as shown in SEQ ID NO: 1, wherein mutation comprises mutation at an S297 site; or (b) protein which has more than 70% of homology with the amino acid sequence limited in (a) and has polypeptide ligase activity. The problem that in the prior art, polypeptide ligase is poor in ligation activity can be solved, and the method is suitable for the field of polypeptide synthesis.

The embodiment of the utility model provides a composite workpiece and terminal equipment. The composite part comprises a first structural part, a second structural part, a first material body and a second material body, the second structural part and the first structural part are made of different materials, the second structural part is located on the surface of one side of the first structural part, the first material body and the first structural part are made of the same material, and the first material body is connected with the surface of one side of the first structural part. The second material body and the second structural part are made of the same material, the second material body is connected with the second structural part, the joint face of the second material body and the second structural part intersects with the surface of one side of the first structural part, and the orthographic projection of the second material body and the orthographic projection of the first material body on the surface of one side of the first structural part are overlapped. According to the technical scheme, the reliability of connection between the dissimilar material structural parts can be improved.

The utility model relates to a mainboard structure of a live broadcast all-in-one machine. The mainboard structure of the live broadcast all-in-one machine comprises a board body, a transmission assembly and a main control assembly, and the transmission assembly comprises a data interface piece, a power interface piece, a network interface piece, a microphone interface piece, a display interface piece, a backlight interface piece, a heat dissipation interface piece and a main control interface piece. The data interface piece, the power interface piece, the network interface piece, the microphone interface piece, the display interface piece, the backlight interface piece, the heat dissipation interface piece and the main control interface piece are respectively arranged on the board body at intervals; the main control assembly comprises an operation board and a heat conduction piece, the operation board is arranged on the board body, the heat conduction piece is located on one side of the operation board and connected with the heat dissipation interface piece, and the operation board is connected with the main control interface piece. According to the scheme provided by the invention, the types of the mainboard interfaces of the live broadcast all-in-one machine can be increased, and the number and types of the connected external equipment are further increased, so that the expansibility of the mainboard is improved.

The invention provides a communication gateway expandable interface based on an energy internet of things, and relates to the technical field of gateway interfaces, the communication gateway expandable interface comprises a communication cabinet and a main interface, the communication cabinet is provided with an expansion mechanism convenient for expansion of the interface, and the communication cabinet is provided with a detection mechanism convenient for the expansion mechanism to use. The capacity expansion mechanism comprises a converter, a main plug, a C-shaped protection box, a pull plate and an arc-shaped rod, and the detection mechanism comprises a motor, a signal converter and an electric signal detector. Through the cooperation of the motor, the signal converter and the electric signal detector, when the electric signal detector detects that a certain expansion port is damaged, the motor can be timely driven to start to drive the push rod to move, so that the connection between the main plug and the main interface is disconnected; and the damage to connected equipment or the damage to a communication case through a general interface caused by over-high voltage, current or other abnormal conditions generated by the damaged use of the expansion port is avoided.

The present invention relates to the field of surgical robot technology, and more specifically, to a master hand control system for a small surgical robot. It includes an infrastructure unit, a motion control unit, a video display unit, a communication connection unit, and a power management unit; the infrastructure unit is used to manage the basic equipment for building the system; the motion control unit is used to control the master hand to control the slave hand movement; the video display unit is used to display the surgical field video; the communication connection unit is used to support the signal connection and data transmission of the system; the power management unit is used to intelligently manage the energy source. The design of the present invention can realize the coordinated movement of the eye and hand under minimally invasive surgery, and improve the quality of the robot's fine operation; it can provide doctors with three-dimensional high-definition images of the patient's abdominal cavity, improve the accuracy of the operation, and improve the safety performance of the surgical robot; 5G technology is used to provide a network environment for remote surgery, so that remote surgery can benefit more areas with limited medical conditions.

The utility model relates to the technical field of computer network cabling equipment, and discloses a network cable clamp for computer network cabling. Comprising a fixing frame and further comprises a fixing plate fixed to the inner wall of the fixing frame, and a driving part is arranged at the top of the fixing plate; and the branching assembly is arranged at the outer side of the driving part, the branching assembly comprises a connecting plate, the connecting plate is located at the outer side of the driving part, the tool and the accessory which are integrated are provided, so that manual intervention is reduced, the error rate is reduced, the design that different network cables are clamped and fixed in an adjustable manner is adopted, the network cables can be better fixed, and the working efficiency is improved. According to the device, a universal style suitable for various wiring requirements is designed, the style is not specially designed for a specific scene, the device with more network cable clamps for fixing network cables is designed to support connection of more devices, the device layout is optimized, and unnecessary cable entanglement is avoided.

The application belongs to the technical field of smart grid, and particularly discloses a physical configuration system visualization method and system based on an SCD file. The method acquires and inputs feature information of a system, analyzes a whole station system configuration file in a system logic loop, acquires corresponding function constraint data attribute data set, exports the function constraint data attribute data set into a JSON format engineering file index information set file, puts the file into a file directory of a terminal, reads the file on the terminal, obtains visual display of a virtual loop of a substation, and perfects data of a PC terminal system. On the basis of perfecting the data of the PC terminal system, feature information of a substation, a control room, a screen cabinet, equipment, a cable and a port of the system is bidirectionally verified with the virtual loop of the substation, and a whole station physical loop file is obtained. According to the technical scheme, the data of the PC terminal system and SCD data are corresponded, real connection of a field link is ensured, and connection of a real loop is perfected.

The utility model relates to the technical field of non-woven fabrics for automobiles, in particular to an automotive non-woven fabric with good wear resistance, which comprises an inner non-woven fabric layer fixed on an automobile and an outer non-woven fabric layer bonded on the inner non-woven fabric layer, the end faces, close to each other, of the inner-layer non-woven fabric and the outer-layer non-woven fabric are provided with an inner adhesive layer and an outer adhesive layer respectively, and the inner adhesive layer and the outer adhesive layer are adhered to each other. The inner layer non-woven fabric is connected through the very thin outer adhesive layer and the inner adhesive layer, the outer layer non-woven fabric has smaller influence on the thickness of the non-woven fabric and is more sufficient, uniform and comprehensive in connection, the uncovering strips can be uncovered at the same time through the fixing end strips by upwards pulling the uncovering strips during uncovering, and therefore the outer layer non-woven fabric can be uncovered conveniently and rapidly, and the uncovering effect is good. The separation is quicker and more convenient.

The utility model discloses a metal casting subjected to stress deformation aging treatment, and relates to the technical field of machine tool parts. The casting comprises a casting main body, one side of the casting main body is provided with a connecting part, the other side of the casting main body is provided with a meshing part, and the surface of the casting main body is provided with a connecting hole; the connecting part comprises a first connecting handle. The high-temperature-resistant layer and the corrosive barrier layer in the functional layer perform their own functions, the double-layer waterproof and wear-resistant design of the outer protective layer further strengthens the protective effect, and the careful selection and the accurate determination of the thickness of the materials of each layer enable the casting to have good stress deformation resistance and to effectively resist the influence of various severe environments, so that the service life of the casting is prolonged, and the service life of the casting is prolonged. The service life is remarkably prolonged, due to the ingenious design of the connecting part and the meshing part, diversified connection with other parts is achieved, force transmission is optimized through a unique included angle, the connection stability is greatly improved, and reliable operation under various working conditions is guaranteed.

The present invention discloses a battery cooling plate plastic-coated joint, comprising a water-cooled upper plate and a water-cooled lower plate, the outer wall of the water-cooled upper plate being welded with a gasket, and the inner wall of the gasket being wrapped with a plastic joint. The water-cooled upper plate and the water-cooled lower plate are two aluminum plates joined by welding, and a passage formed inside is passed through the cooling plate at the bottom of the battery. The plastic joint serves to connect the coolant passage in the water-cooled upper plate and the water-cooled lower plate and the external pump body pipeline, so that the coolant in the water-cooled plate can communicate with the outside to form a heat dissipation circuit. Since the aluminum gasket is added, the plastic joint is fixed to the water-cooled upper plate by the gasket to avoid the risk of damage to the plastic joint.

The utility model provides a processor mainboard and a processor system, the processor mainboard comprises a mainboard substrate, a first processor and a second processor, the first processor and the second processor are fixedly arranged on the mainboard substrate, and the first processor is electrically connected with the second processor; the plurality of connecting ports are fixedly arranged on the mainboard substrate and are electrically connected with the first processor and the second processor respectively; the 16 memory slots are fixedly arranged on the mainboard substrate, 8 of the 16 memory slots are electrically connected with the first processor, and the other 8 of the 16 memory slots are electrically connected with the second processor; and the expansion connector is fixedly arranged on the mainboard substrate, is electrically connected with the first processor, and is used for being connected with an external input and output board. According to the utility model, interfaces on the processor mainboard can be enriched, and the integration level of the processor mainboard is improved.

The utility model discloses a multi-interface connection wiring terminal, relates to the technical field of wiring terminals, and aims to solve the problem that a long-row-shaped wiring terminal occupies a large space during installation, especially a distribution box with a small installation space, and the connection number of electrical equipment is reduced. Comprising an installation mechanism and a wiring terminal mechanism installed on the installation mechanism, the installation mechanism comprises an installation frame, an installation column is arranged in a U-shaped opening of the installation frame, the wiring terminal mechanism comprises a plurality of terminal boxes which are rotationally connected with one another, and installation plates are symmetrically arranged on the terminal boxes located at the first position and the last position. The terminal box is installed on the installation column, and the wiring terminal mechanism and the installation column form a cylinder. The wiring terminal has two states, namely a long row shape and a cylindrical shape, and the cylindrical wiring terminal can realize the connection of more wires in a limited space, so that the occupied space in equipment such as a distribution box can be effectively reduced.

The utility model discloses a multi-cable-core cross-linked polyethylene insulated metal shielding flame-retardant power cable which sequentially comprises an outer sheath, a shielding layer and a wrapping layer from outside to inside, a tensile unit, a plurality of cable cores and a plurality of pressure-resistant supporting units are arranged in the wrapping layer, the outer sheath is made of a polyvinyl chloride material, the shielding layer is a copper wire braided shielding layer, and the tensile unit, the cable cores and the pressure-resistant supporting units are arranged in the wrapping layer. The wrapping layer is a mica tape wrapping layer, the insulating layer is a crosslinked polyethylene insulating layer, and the inner sheath is a low-smoke halogen-free inner sheath. According to the power cable, the number of the cable cores is large, the number of devices capable of being connected is large, more power can be transmitted at the same time, and the power transmission effect is good; and gaps are formed between the arc-shaped supporting plate units and the corresponding cable cores, and the hollow pressure-resistant pipe is matched, so that enough buffer space is provided, and the pressure-resistant effect of the cable is good.

The utility model discloses a high-density integrated connector of communication equipment, which comprises a high-density connecting mechanism, a splicing closing mechanism and a connecting fixing mechanism, the high-density connecting mechanism comprises a shell, a fixing ring is fixedly connected inside the shell, a socket is fixedly connected to the lower side of the fixing ring through a screw, a pin is fixedly connected to the upper side of the socket, and the pin is fixedly connected to the splicing closing mechanism. A mounting groove is formed in the shell, an aluminum foil roll is arranged in the mounting groove, and a plurality of pins are arranged. According to the utility model, through the arrangement of the high-density connecting mechanism, the plurality of pins are arranged in a linear distribution manner, so that the connector is compact in design, the pins are densely arranged, and more connections can be realized in a limited space; high-speed data transmission and high-bandwidth communication can be supported, and the requirements of modern communication equipment for data transmission speed and bandwidth are met; rapid and reliable connection between the devices can be realized, and convenience and efficiency are provided for data transmission and communication between the devices.

The present invention relates to a guiding device for large-format manual cutters, said device consisting of a guide (1) that comprises: on its top surface (11) an intermediate recessed portion (111) delimited by a base (112) and by longitudinal rails (113a, 113b) for movement of a manual cutter (3); and, on opposite sides of its bottom surface, first support means (121, 122) for supporting the guide (1) on the part (P) to be cut and a longitudinal recess (123) for receiving lever suction cups (2) which form second means for supporting and securing the guide (1) on the part (P) to be cut. The longitudinal rails (113a, 113b)are arranged between the first and the second support means; and the first support means (121, 122) are arranged between the cutting tool (31) and the suction cups (2) which form the second support means.