58results about How to "Guaranteed Reliability Requirements" patented technology

The invention discloses a method for multiplexing the uplink control information (UCI) in an uplink channel. Firstly, the UCI is classified by the UE, and different types of the UCI are respectively subjected to encoding, rate matching and modulating. Secondly, the UE respectively maps different types of the UCI on the uplink channel. The invention also discloses a method and a device for multiplexing the P-CSI and the A-CSI in the uplink channel, a method and a device for determining the number of modulation symbols occupied by the UCI, and a method and a device for determining an uplink physical resource block for uplink transmission. The invention provides a general physical resource mapping method for processing various types of the uplink information, and ensures the reliability requirements of different types of the UCI information. Meanwhile, the P-CSI fed back together with the A-CSI is optimized, so that the feedback overhead is reduced. Moreover, uplink channel resources allocated by a base station can be fully utilized. Therefore, the utilization rate of uplink resources is increased.

The invention relates to a multipath routing reliable transmission method based on network coding. The method comprises the steps as follows: a converged node periodically broadcasts routing update information, and each node acquires hop counts from self to the converged node and a neighbor table which contains all neighbor nodes and residual energy thereof; a source node calculates the needed path number; the source node encodes data packets needing to be transmitted, selects the next hop of node and sends the data; after the next hop of node receives the encoded packets, the data packets with the same group of marks are encoded, and the needed path number is recalculated; and the process above is repeated until the last node arrives at the converged node, and then the original data packet is decoded by the converged node. By adopting the method provided by the invention, reliable transmission of the network and the balance of the energy of the network can be guaranteed.

The invention relates to a method for evading co-channel interference through deflection antenna pointing and a satellite communication system. The method comprises the following steps: arranging morethan one space-borne antenna on an NGEO communication satellite; determining a constellation configuration of the NGEO satellite communication system, and ground user type and distribution, and selecting variables to describe the normal orientation of the space-borne antenna of the NGEO satellite communication system; according to an interference protection regulation for the GEO satellite systemof ITU, selecting a group of indexes alpha for balancing the interference degree of the satellite communication system to the GEO satellite system; determining a group of indexes beta for balancing link quality of the satellite communication system; establishing a nonlinear optimization model of the normal orientation of the phased array antenna according to the indexes alpha and the indexes beta; and solving optimal variables through iterations and outputting a set of optimal phased array antenna deflection pointing setting scheme. The method for evading co-channel interference through deflection antenna pointing and the satellite communication system in the present invention ensure own communication link quality and reliability requirements, so that the satellite system can coexist effectively with the GEO satellite system at the same frequency.

The invention discloses an electric connector and a wire connecting method thereof. The connecting method comprises the step of connecting socket wires or plug wires and comprises the following concrete steps: strengthening the end parts of wires; welding and protecting each wire after the end parts of the wires are welded with a socket or a plug; and protecting the integrated wires connected with the socket or the plug. The electric connector comprises a socket, a plug, a first wire cable and a second wire cable, wherein the first wire cable and the second wire cable are respectively connected with the plug or the socket; metal terminals are fixed at the end parts of the wires and are welded together with pins on the plug or the socket; a small thermal shrinkable sleeve is sleeved at thewelding part of the wires; a big thermal shrinkable sleeve is sleeved outside the second wire cable; and the sheath of the first wire cable is clamped by a tail clamp of the plug. The connecting method of the invention can enhance the connecting strength, can enhance the tensile resistance and the torsion resistance, and completely can ensure the reliability requirement of a reinforced computer. The electric connector of the invention has high connecting strength, tensile resistance and torsion resistance, and the wires can not be broken easily.

The invention relates to a power system planning scheme flexibility assessment method based on probability risk assessment. The power system planning scheme flexibility assessment method includes that (1) candidate planning schemes are made according to network topology and future requirements of a power system; (2) uncertain factors and the probability characteristic of the uncertain factors which are faced by the planning schemes are determined according to historical data and future forecasting of the power system; (3) the risk indicators of the candidate planning schemes are calculated according to the uncertain factors and the probability characteristic of the uncertain factors, and risk quantitative assessment is carried out; (4) the flexibility of the planning schemes is assessed according to the risk indicators, the candidate planning schemes with low risk indicators has a high capability for handling various future uncertain factors and good flexibility, and the candidate planning schemes with high risk indicators has a low capability for handling various furture uncertain factors and poor flexibility; and (5) the planning scheme is determined according to the risk indicators of the candidate planning schemes by combining the indicators of the reliability and the economical efficiency of the candidate planning schemes. The risk assessment method is used for processing the probability characteristic of the uncertain factors faced by the system and the effect of the probability characteristic on the power system, and can assess the flexibility of the planning schemes.

The invention discloses an MMC dynamic redundancy preventive maintenance method considering the influence of operation conditions. The method mainly comprises the following steps: 1) obtaining sampledata of an MMC redundancy submodule population; 2) generating a meteorological data sample set of the whole life cycle; 3) establishing a reliability evaluation model for an MMC power device in a windpower transmission system, and calculating to obtain the reliability of the MMC power device; 4) establishing a hybrid MMC capacitor reliability evaluation model, and calculating to obtain the reliability of a capacitor; 5) establishing an MMC whole-life-cycle reliability evaluation model, and calculating the reliability of an MMC within the whole life cycle; and 6) carrying out dynamic preventive maintenance on the MMC. According to the method, on the premise that the reliability of the MMC is guaranteed, the operation and maintenance cost of the MMC is reduced, and the method can be widelyapplied to MMC preventive maintenance work in renewable energy transmission grid connection of wind power and the like.

The invention discloses a multi-channel high-density wavelength division multiplexing high-speed optical device. The optical device comprises a laser module, an optical path conversion module, a wavelength division multiplexing module, an optical fiber coupling module and an optical fiber which are sequentially arranged along the optical axis direction. The optical device is characterized in thatthe wavelength division multiplexing module comprises a first Z-Block module with four channels and a second Z-Block module with four channels; eight paths of divergent light emitted by the laser module are converted into eight paths of parallel light through the light path conversion module; and eight paths of parallel light are divided into two groups according to four paths as a group, one group of coupled light passes through a first Z-Block module and then is combined into one path, the other group of coupled light passes through a second Z-Block module and then is combined into a secondpath, and two paths of light from the first Z-Block module and the second Z-Block module pass through a wave combining module and then are combined into one path. The multi-channel high-density wavelength division multiplexing high-speed optical device can greatly shorten the optical path.

The invention belongs to the technical field of aircraft assembling, and relates to an aircraft main landing gear hatch door assembling coordinate platform which comprises a foundation, a main frame, hatch door intersection positioning assemblies, hatch door appearance detecting boards, main landing gear fairing process fake frames and a tension belt assembly. The main frame is installed on the foundation. The hatch door intersection positioning assemblies, the hatch door appearance detecting boards, the main landing gear fairing process fake frames and the tensioning belt assembly are installed on the main frame. The positioning coordinates of the hatch door intersection positioning assemblies are the same as the assembling interaction coordinates of an aircraft actual hatch door. The inner shape of the hatch door appearance detecting boards is the same as the theoretical appearance of the hatch door, and the inner shape of the hatch door appearance detecting boards is larger than the theoretical appearance of the hatch door. The two ends of the coordinate platform are provided with the main landing gear fairing process fake frames which are totally the same with aircraft main landing frame fairing lap joint frames in appearance. By means of the aircraft main landing gear hatch door assembling coordinate platform, the production cost and assembly risk are reduced, actual assembling workloads are reduced, and the development cycle is shortened.

The invention relates to a method and a system based on isolated double Ethernet and double CAN communication. The method comprises the following steps of respectively defining a first Ethernet communication channel, a second Ethernet communication channel, a first CAN communication channel and a second CAN communication channel; setting a working channel and a standby channel by judging whether the first Ethernet communication channel and the second Ethernet communication channel are connected normally, and analyzing whether a digital signal transmitted by Ethernet needs to be transmitted bythe first CAN communication channel or the second CAN communication channel; and setting the working channel and the standby channel by judging whether the first CAN communication channel and the second CAN communication channel are connected normally, and analyzing whether the digital signal transmitted by a CAN needs to be transmitted by the first Ethernet communication channel or the second Ethernet communication channel. Compared with the prior art, the method and the system have the advantages of being high in anti-interference capability, easy to expand, high in reliability and the like.

The embodiment of the invention discloses a network reliability configuration method, an information transmission method, a device and a system, which are used for providing a network reliability guarantee for the requirements of user equipment. The embodiment of the invention provides a network reliability configuration method which is applied to a PCF entity, and the method comprises the steps that the PCF entity obtains reliability request information generated by an AF entity, and the reliability request information comprises a reliability index set by the AF entity for a service flow on UE; The PCF entity obtains the reliability index from the reliability request information; The PCF entity determines the guarantee requirement of the service flow on the user equipment for the networkreliability according to the reliability index; And the PCF entity determines a redundant transmission strategy according to the guarantee requirement of the service flow on the user equipment on thenetwork reliability, wherein the redundant transmission strategy is used for indicating a session management function (SMF) entity to configure a redundant transmission path.

The invention discloses a temperature sensing real-time task scheduling method for coping with soft errors. The temperature sensing real-time task scheduling method comprises the following steps that a value is randomly selected from the section [0, 1] for a variable alpha; an optimal operation frequency is selected for each task, so that the energy consumption is the lowest when each task is executed at the optimal operation frequency; a scheduling sequence of the tasks is determined; the current reliability Rcurr of a system is worked out; the size relation between the current reliability Rcurr of the system and a given target Rgoal is judged; when Rcurr is larger than or equal to Rgoal, returning to the scheduling sequence of the tasks is carried out, and the tasks are scheduled according to the determined task working frequencies; otherwise, the value of the variable alpha is updated with a binary search method, and the working frequencies of the tasks and the scheduling sequence of the tasks are redetermined. By means of the task scheduling and frequency selection strategies proposed in the method, the energy consumption of the system can be minimized under the condition that the system meets the reliability restraint, the peak temperature restraint and the time restraint.

The invention provides a semiconductor device and a forming method thereof. After a groove is formed in a semiconductor substrate of a specific doping type, the coating, baking and diffusing process is conducted through a latex doping source of the type opposite to the doping type of the semiconductor substrate, the groove is filled with the latex doping source which covers and repairs the surface of an oxidization layer, and meanwhile a doping area of the type opposite to the doping type of the semiconductor substrate is formed in the portion, around the groove, of the semiconductor substrate; a conventional extension doping process with complex processes and large technical difficulty is not needed, the groove is fully filled without defects, the requirement for the groove etching process is lowered, and the requirements for the high-voltage performance and reliability of the device are met.

The invention discloses a method for determining uplink channel transmission power. The method comprises the following steps: determining a corresponding reference uplink channel for each target uplink channel, wherein the sending time of the reference uplink channel is earlier than the sending time of the target uplink channel, and the control information receiving time of the reference uplink channel is earlier than the control information receiving time of the target uplink channel; accumulating the power adjustment amount in the control information between a calculation starting moment anda calculation stopping moment to obtain a total adjustment value for adjusting the target uplink channel power, wherein the starting moment is the control information receiving time of the referenceuplink channel, and the cut-off moment is between the control information receiving time of the target uplink channel and the sending time of the target uplink channel. The invention further providesa device for determining the uplink channel transmission power. According to the scheme of the invention, the problem of how to determine the total adjustment value of the transmission power of an uplink channel when the sending time sequence of the downlink control information is different from a sending time sequence of a scheduled uplink channel is solved.

The invention discloses a self-calibration method and system for a two-shaft frame type pendulous accelerometer. The method includes: rotating two frames of the accelerometer to enable an eccentric pendulum of the accelerometer to be positioned at six positions respectively, and acquiring torque measurement values at the six positions; solving apparent accelerations of the base in three orthogonaldirections according to the torque measurement values at the six positions; according to the apparent accelerations, the torque measurement values and a gravitational acceleration, calculating to obtain calibrated inner frame shaft pendulosity and calibrated outer frame shaft pendulosity; calculating to obtain a constant disturbance torque according to the torque measurement values; feeding backthe calibrated inner and outer frame shaft pendulosity and the constant disturbance torque to an error model in an operating state of the accelerometer to perform compensation calculation to obtain X-axial and Y-axial apparent acceleration components of the base, so that accuracy in acceleration measurement is improved. Pendulosity changes and zero offset of the accelerometer can be effectively separated out, and long-term stability and precision in use of the accelerometer are improved.

The invention discloses a non-drive type rear axle for an automobile, which comprises a rear axle tube, wherein the two sides of the rear axle tube are upwards and symmetrically provided with left and right rear hub axle seats; the rear axle tube close to the left and the right hub axle seats is successively and symmetrically provided with left and right steel plate spring seats and left and right rear damper lower seats; and the left and the right steel plate spring seats are fixedly connected above the rear axle tube through an arc-shaped plate matched with the external arc surface of the rear axle tube. The non-drive type rear axle has the advantages that the structure is simple; the production cost of the whole automobile can be reduced to meet the requirements of the commercial functions; the left and the right steel plate spring seats are fixedly connected above the rear axle tube to enhance the lateral tilted stability of the whole automobile and reduce the cost of the whole automobile on the premise of guaranteeing the safety; and the left and the right rear hub axle seats arranged on the two sides of the rear axle tube meet the requirements on the strength of the limit longitudinal force and the lateral force stood when rear wheels brake and turn, and the requirements on the whole strength and the reliability of the rear axle shell are guaranteed.

The invention provides a multi-line electric leakage synchronous detection device of 220V alternating current lines. The multi-line electric leakage synchronous detection device comprises a plurality of single electric leakage signal sampling circuits connected in parallel and connected with a main control unit. Each sampling circuit comprises a current transformer, a signal amplification and processing module and a signal conversion processing module and is connected with a data transmission, recording and management module, wherein the signal amplification and processing module comprises an amplifier circuit, and a resistance-capacitance filter circuit; the signal conversion processing module employs an ADC branch control unit; the current transformer, the amplifier circuit, the filter circuit, the ADC branch control unit and the main control unit are connected successively. The main control unit is connected with a clock circuit and a displayer. The device can completely record and store the dynamic state electric leakage current and the corresponding electric leakage occurrence time of each power supply line in real time, provide accurate and reliable maintenance information, furthest narrow the line fault coverage and improve the accuracy and efficiency of line maintenance.

The present invention discloses a method for distinguishing services based on a network coding collaboration system in a wireless sensor network. In the method, a transmit power is set for each node according to reliability desired by an application, so that while the reliability is ensured, the transmit power of the node is lowered to the minimum, unnecessary energy consumption is saved, and the service life of the network is prolonged. The data transmission power of the node and the data transmission reliability have a positive correlation. When the network dies, a lot of energy is still in an area far from aggregated nodes, and the surplus energy is fully used, so as to improve the transmit power of nodes in the area to better improve data reliability, and the service life of the network is not shortened.

The invention discloses a pipe fitting pressing sleeve perforating machine. The pipe fitting pressing sleeve perforating machine comprises a pressing sleeve feeding vibration disc, a feeding mechanism and a pressing perforating device which are sequentially arranged; the pressing sleeve feeding vibration disc comprises a conical hopper, a spiral track is arranged in a spiral rising mode along the inner wall of the conical hopper, the feeding mechanism comprises a linear feeding track, an inlet of the linear feeding track is connected with an outlet of the spiral track, an outlet of the linear feeding track is lower than the inlet, and a push plate is arranged at the outlet of the linear feeding track; and the pressing perforating device comprises a pressing mechanism and a drilling device, the pressing mechanism is arranged on the pushing track of the pushing plate, and the drilling device is adjacent to the pressing mechanism. The invention further provides a using method of the pipe fitting pressing sleeve perforating machine. According to the invention, a reliable photoelectric sensor and delay control are adopted, sequential operation of a plurality of devices is realized, a complicated control device is prevented from being adopted, and the perforating machine has the characteristics of convenience and reliability.

The invention relates to walls, roof surfaces, and stilt floor slabs of industrial and civil buildings, in particular to a construction method for control insulation layers of step type equal height insulation laths. The invention is characterized in that the step type equal height insulation laths are connected on a base course wall through bonding agent to form reference control, then a polyurethane hard foam insulation layer is spray coated and a slurry material insulation layer is applied between two step type equal height insulation laths, so as to realize the effective control of the layer thickness and the overall thickness of the insulation layers. The polyurethane hard foam insulation layer is spray coated according to the height of a first step H1 of the step type equal height insulation laths, and the slurry material insulation layer is applied according to the height of a second step H2 of the step type equal height insulation laths. The width of the step type equal height insulation laths is 70 to 120 mm. The invention has the advantages that the application of the step type equal height insulation laths realizes the effective control to the thickness of the two insulation materials in the construction process; after the polyurethane hard foam insulation layer is spray coated, the surface is not required to be finished, thereby the labor intensity is reduced, the working time is saved and the environment pollution caused by construction waste generated by finishing the surface is reduced; the insulation layers have good insulation integrity and consistent thermal performance, edge joints and a hot bridge effect of large thickness insulation layers of EPS, etc. can be avoided, and the high efficiency and the energy conservation can be realized.