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48results about How to "Improve coordination efficiency" patented technology

Trunk coordination optimization method for repetitive releasing in coordinated direction

The invention provides a trunk coordination optimization method for repetitive releasing in a coordinated direction. A time interval map is drawn based on collection of an intersection signal controlscheme; repeated release situations in a common cycle of the intersection are identified; all situations are solved respectively based on a trunk coordinated model; and then comparison is carried outfinally to obtain an optimal trunk coordination plan. According to the trunk coordinated optimization method, since the dual-cycle and large-small-cycle trunk coordination is determined and tested manually at the existing stage, the cycle study on the coordinated intersection by the trunk coordination provided by the invention takes the common cycle into consideration and multi-times coordinated releasing phase stages in the common cycle are used as coordinated stages and are solved, so that the optimal trunk coordination plan is obtained by circulation and thus the trunk coordination efficiency is improved substantially. Meanwhile, a high-efficiency trunk coordination optimization method is provided to avoid complicated situations of repeated releasing and phase overlap joint of the intersection.
Owner:JIANGSU ZHITONG TRANSPORTATION TECH

Continuous variable quantum key distribution data error correction method based on fountain codes

The invention relates to a continuous variable quantum key distribution data error correction method based on fountain codes. The method comprises the following specific implementation steps: step 1,generating a certain number of binary true random numbers as original code words by a data coordination initiating end, and continuously carrying out fountain code coding on the group of random numbers; step 2, calculating a mapping relation between the coded code word and the original data, and sending the mapping relation to the other end; step 3, after the other end receives the mapping relation, executing the same mapping operation on the original data of the other end, and then obtaining error-corrected data through fountain code decoding; and step 4, if the decoding fails, repeating thestep 2 and the step 3 until the decoding is successful, otherwise, performing the next group of key error correction. Based on the characteristic that fountain codes have no fixed code rate, the difficulty of check matrix construction is reduced, error correction under various signal to noise ratio conditions can be realized, and higher coordination efficiency can be obtained.
Owner:BEIJING UNIV OF POSTS & TELECOMM

A four-state modulation continuous variable quantum key distribution data coordination method and system

The invention relates to a four-state modulation continuous variable quantum key distribution data coordination method and system, and the method comprises the steps: enabling a key to be modulated toa coherent state, and enabling the coherent state to be transmitted to a receiving end through a quantum channel; acquiring a measurement result by utilizing a balance homodyne detector, further acquiring a normalization result of a coherent state, determining a filtering function value, judging whether each bit of key is reserved or not, if so, marking freezing bit information at the position ofthe bit of key, and sending a key information segment in the reserved key to a sending end through a classical channel; Judging whether the quantum channel is safe or not, and sending judgment information to a receiving end; If the judgment information is quantum channel security, freezing bit information of the key information except the key information segment is coded by a system Polar code and then sent to a sending end; And the freezing bit information is decoded by a Polar code of the system, key information corresponding to the freezing bit information is obtained, and a final securitykey is obtained through encryption amplification. According to the method, the data coordination efficiency can be improved, the security key can be effectively extracted, and the equipment complexity can be reduced.
Owner:GLOBAL ENERGY INTERCONNECTION RES INST CO LTD +3

Strategy-based spectrum resource dynamic allocation method, device and system

The invention relates to a strategy-based spectrum resource dynamic allocation method, device and system. The strategy-based spectrum resource dynamic allocation method comprises the following steps: summary processing node level spectral perception data and obtaining network level spectral perception data; according to spectrum management information and the network level spectral perception data, centrally controlling frequency spectrums through a common signal channel to obtain each spectrum management strategy; and carrying out spectrum resource allocation on spectrum-using equipment through a corresponding network general node according to each spectrum management strategy. The strategy-based spectrum resource dynamic allocation method enables the center of a frequency spectrum management framework to shift from the management center to the perception side of the spectrum-using equipment; and for the bounded perception result of a cognition user, by dynamically making a spectrum management strategy and sending the spectrum management strategy to the spectrum-using equipment, the spectrum-using equipment realizes dynamic spectrum access according to the given strategy, and spectrum decision is allowed to be made faster.
Owner:CHINA ELECTRONICS TECH GRP NO 7 RES INST

Carrying vehicle loading capacity scheduling method based on smart park and central cloud platform

InactiveCN113743812AReduce waiting time for admissionEvenly distributed operating pressureReservationsOffice automationCloud dataVoucher
The invention discloses a carrying vehicle loading capacity scheduling method based on a smart park, the method is applied to a carrying vehicle scheduling center cloud platform, and the method comprises the following steps: S1, carrying out pickup vehicle information input before pickup of a carrying vehicle; S2, enabling a brake system to autonomously recognize a license plate to complete the entrance and exit of the vehicle; S3, determining a driving path network of the current park based on the planned driving path of the carrier vehicle in the current park; S4, displaying the vehicle information and the loading capacity by the information interaction terminal; and S5, detecting the wheels by using the electronic scale monitor, immediately displaying a weighing result to a driver, and printing a voucher by using the information interaction terminal. According to the carrying vehicle loading capacity scheduling method based on the smart park and the central cloud platform, through system order allocation and time-phased reservation, congestion is reduced, scheduling is carried out in advance, the loading and unloading efficiency is improved, the scheduling management system is matched with cloud data to record data in real time, the information acquisition accuracy is improved, and the labor cost is greatly reduced.
Owner:江明权

Three-dimensional coordinating method for airplane product

The invention belongs to the field of airplane design and relates to establishment of a method for conducting three-dimensional coordination on all systems of an airplane product in the detailed initial design stage. The method is characterized by comprising the steps that firstly, coordination of all specialties of the airplane product is divided into three types; secondly, three types of three-dimensional coordination models are established respectively; thirdly, mutual coordination is conducted between the specialties to confirm data. By means of the method, the whole course data transmission in the developing process of large industrial products such as airplanes is achieved, and thus the transmission of the coordination data is accurate and fast; the geometric models expressed with points, lines and planes which occupy quite little resources and quite small space are adopted in the three-dimensional coordination models to specially express the coordination information between the specialties, and the expressed content is concise and clear; the standardized three-dimensional coordination models enable coordination elements to be completely expressed, and missing and incompletion of the coordination elements are effectively avoided; the three-dimensional coordination models facilitate the concentrated expression of the coordination elements; state control is adopted in the three-dimensional coordination models, and thus data management and tracing are facilitated.
Owner:SHENYANG AIRCRAFT DESIGN INST AVIATION IND CORP OF CHINA

Decomposition coordination optimal power flow control method for power transmission network and power distribution network in power system

The invention relates to a decomposition coordination optimal power flow control method for a power transmission network and a power distribution network in a power system and belongs to the technicalfield of power system operation control. A polar coordinate optimal power flow control model of a power transmission network and a branch optimal power flow control model of a power distribution network are comprehensively considered, and a boundary coupling relationship between the power transmission network and the power distribution network is combined to establish an optimal power flow control model of power transmission and distribution coordination. The invention provides an iterative solution algorithm between a power transmission network and a power distribution network in a power system for a proposed optimal power flow control model adopting convex relaxation technology to realize decomposition coordination calculation of the optimal power flow control model of power transmission and distribution coordination. The algorithm involved in the method has a good convergence rate, the global total power generation cost of the power transmission network and the power distributionnetwork can be reduced, and the safety problems of mismatching of transmission and distribution boundary power, voltage out-of-limit and the like are eliminated.
Owner:TSINGHUA UNIV

Trunk line intersection coordination control method based on track data

The invention relates to a trunk line intersection coordination control method based on track data. The method comprises the following steps: acquiring vehicle operation data of a trunk line intersection, analyzing and obtaining a relationship between a vehicle track and a phase difference, considering an intersection queuing influence factor, establishing a phase difference optimization model taking minimum total delay of coordination traffic flow as a target, obtaining an optimal phase difference scheme, and realizing trunk line intersection coordination control according to the optimal phase difference scheme. Compared with the prior art, the method has the advantages that the cost is low, according to the invention, a trunk line coordination phase difference optimization model is established by using track data. The problems of low precision, insufficient space coverage and the like of fixed detection data in traffic signal control optimization are avoided; t. Te influence of the original queuing condition of the intersection on the coordination benefit is further considered, the actual operation condition of the whole trunk line traffic flow is better met, and compared with atraditional method, trunk line coordination traffic flow delay can be effectively reduced, and the trunk line coordination benefit is improved.
Owner:TONGJI UNIV

Precise self-adaptive height determining method for ultra-wideband proximity detector and detector thereof

ActiveCN112985202AImplement Consistency CheckAddresses susceptibility to antenna gainProximity fuzesUltra-widebandSoftware engineering
The invention provides a precise self-adaptive height determining method for an ultra-wideband proximity detector and the detector thereof. The method includes the following steps that S1, a receiver clock circuit provides a time sequence signal; S2, a receiving sampling pulse circuit and a preorder sampling pulse circuit respectively generate pulses and transmit the pulses to a sampling pulse synthesis circuit; S3, a correlator circuit receiving antenna incoming signal generated by the sampling pulse synthesis circuit is processed; S4, after a correlator circuit removes interference from an input signal, a receiving signal and a preorder waveform are obtained; S5, a target reflection coefficient estimation module calculates a reflection coefficient according to the received signal and transmits the reflection coefficient to a baseband dynamic gain control module; S6, the baseband dynamic gain control module applies gain to the incoming signal and then transmits the incoming signal to a signal processing module; and S7, after the signal processing module judges the burst height consistency, a judgment output module outputs a result. According to the precise self-adaptive height determining method for the ultra-wideband proximity detector and the detector thereof, the target reflection coefficient is obtained by comparing received signal preorder waveform information with actually measured data, so that the problem that the burst height judgment consistency is difficult to guarantee is solved.
Owner:BEIJING HONGDONG TECH CO LTD

Decomposition coordination optimal power flow control method for transmission network and distribution network in power system

The invention relates to a decomposition coordination optimal power flow control method for a power transmission network and a power distribution network in a power system and belongs to the technicalfield of power system operation control. A polar coordinate optimal power flow control model of a power transmission network and a branch optimal power flow control model of a power distribution network are comprehensively considered, and a boundary coupling relationship between the power transmission network and the power distribution network is combined to establish an optimal power flow control model of power transmission and distribution coordination. The invention provides an iterative solution algorithm between a power transmission network and a power distribution network in a power system for a proposed optimal power flow control model adopting convex relaxation technology to realize decomposition coordination calculation of the optimal power flow control model of power transmission and distribution coordination. The algorithm involved in the method has a good convergence rate, the global total power generation cost of the power transmission network and the power distributionnetwork can be reduced, and the safety problems of mismatching of transmission and distribution boundary power, voltage out-of-limit and the like are eliminated.
Owner:TSINGHUA UNIV

A maintenance control device for a locomotive auxiliary motor equipment maintenance line

The invention relates to the technical field of locomotive helper motor equipment overhauling, in particular to an overhauling control device of a locomotive helper motor equipment overhaul line. The overhauling control device of the locomotive helper motor equipment overhaul line comprises information terminal equipment used for collecting the data of a helper motor equipment overhaul line terminal and sending a control instruction and an overhauling controller used for receiving and analyzing the data of the information terminal equipment and sending a control instruction. A signal transmission end of the information terminal equipment is connected with a signal transmission end of the overhauling controller. The state information of an overhauling foundation, a workshop, an overhauling transmission line, a station terminal and overhauling equipment of the overhaul line of locomotive helper motor equipment can be collected in real time through the information terminal equipment. Data exchange and information sharing are achieved through the overhauling controller. Systematic and effective planning and managing are conducted on various working conditions, and resource allocation efficiency and coordinating efficiency are high.
Owner:CHINA RAILWAY DESIGN GRP CO LTD +1

Power transmission and distribution network decomposition coordination reactive voltage control method based on asynchronous ADMM

The invention provides a power transmission and distribution network decomposition coordination reactive voltage control method based on asynchronous ADMM, and belongs to the technical field of operation control of power systems. According to the method, a power transmission network and power distribution network coordinated reactive voltage control model is established for a power system comprising a power transmission network and a plurality of radial power distribution networks. By considering the actual situation that the difference between the computing power and communication conditionsof different power distribution networks is large, the invention provides an asynchronous distributed iterative solution algorithm between the power transmission network and the power distribution network in a power system, and decomposition coordination calculation of a power transmission and distribution coordinated reactive voltage control model is realized. The decomposition coordination control method of the reactive voltage control model has a good convergence rate, and can eliminate the safety problems of mismatching of transmission and distribution boundary power, voltage out-of-limitand the like. According to the method, coordinated reactive voltage control can be carried out on the power transmission network and the power distribution network, the safety risk is eliminated, thecoordination efficiency of a power system is high, and practical application is facilitated.
Owner:TSINGHUA UNIV +1

Information system for open trench tunnel lining construction

The invention discloses an information system for open trench tunnel lining construction. The information system is used for controlling the pouring, transportation and curing of concrete in a liningconstruction process of an open trench tunnel and the centralized dispatching of equipment for building operation of the lined tunnel. The information system comprises a construction comprehensive information database, wherein the construction comprehensive information database comprises an engineering information management system, a lining construction management system, a construction safety monitoring system and a system control panel, the engineering information management system is used for displaying the lining construction information and productive task of the open trench tunnel, thelining construction management system is used for controlling the pouring, transportation and curing of the concrete in the lining construction process of the open trench tunnel and the centralized dispatching of the equipment for the building operation of the lined tunnel, and the construction safety monitoring system is used for monitoring the lining construction process of the tunnel. The information system has the technical effects of centralized integration of construction information and instant construction control and dispatching and can be widely applied to the technical field of tunnel construction control.
Owner:CCCC SECOND HARBOR ENG +1

Continuous variable quantum key distribution adaptive coordination method

The invention discloses a continuous variable quantum key distribution adaptive coordination method. The method comprises the steps that a sending end and a receiving end share coherent state information; the receiving end generates original key information, encodes and modulates the original key information, forms a group of vectors by every d bits of the modulated information, and performs d-dimensional mapping processing on the vectors and normalized coherence state information to obtain a mapping relationship between the vectors and the normalized coherence state information; the sending end calculates a channel log-likelihood ratio according to the mapping relation, sends the channel log-likelihood ratio to a system code decoder to obtain a decoding result, performs CRC on a decodingresult: if the CRC succeeds, ending the decoding; otherwise, sending the frozen bit information in batches, and combining the newly built frozen bit with the originally owned decoding information to decode again until the check is successful or the maximum cycle index is reached. The method is simple, effective and easy to operate. By utilizing the construction characteristics of the system polarization code, the performance of the adaptive protocol is greatly improved, and a very good transmission effect can still be obtained under a low signal-to-noise ratio.
Owner:YANGZHOU UNIV

Coordinated optimization method for trunk lines with repeated releases in coordinated directions

ActiveCN109377753BImprove coordination efficiencyCoordinated optimization methods are efficientControlling traffic signalsDetection of traffic movementTime–distance diagramSimulation
The present invention provides an arterial coordination optimization method for repeated release in the coordinated direction, draws a time-distance map on the basis of collecting the intersection signal control scheme, identifies the repeated release situation in the public cycle of the intersection, solves each situation based on the arterial coordination model, and finally compares Obtain the optimal scheme of arterial coordination; The arterial coordination optimization method of this kind of coordination direction repeated release is all by the present situation that the arterial coordination of current stage two-period, big and small cycle is judged and tested by human, arterial coordination of the present invention is to the cycle research of coordination intersection. Taking the public cycle into consideration, the multiple coordinated release phases in the public cycle are solved as the coordination phase, and the optimal trunk line coordination scheme is obtained in a cycle, which greatly improves the efficiency of trunk line coordination. At the same time, there are duplications at intersections Complicated conditions such as release and overlapping phases provide an efficient method for trunk line coordination and optimization.
Owner:JIANGSU ZHITONG TRANSPORTATION TECH

Instrument resource cloud management and configuration method and system

The invention discloses an instrument resource cloud management and configuration method and system. The instrument resource cloud management and configuration method comprises the steps: initializinga database according to instrument information and operation and maintenance personnel and potential user information thereof; acquiring instrument borrowing or returning process record information of a user according to a preset rule, and generating instrument use statistical information; evaluating the instrument supply and demand relationship by utilizing an evaluation method based on a queuing theory, the instrument statistical information and the instrument information to obtain an instrument supply and demand relationship evaluation result; and reconfiguring the resources according to the instrument supply and demand relationship evaluation result, and updating the database. The instrument resource cloud management and configuration method establishes an instrument and personnel database, sets instrument borrowing and returning rules, according to the borrowed and returned process record information of the instrument and the preset evaluation method, performs periodic quantitative evaluation on the instrument supply and demand relationship, and when the supply and demand relationship is in shortage, performs a new round of resource allocation in time, so that the use efficiency of various instruments and the coordination efficiency among different users are improved, and the instrument operation and maintenance cost is reduced, and the instrument operation and maintenance guarantee capability is enhanced.
Owner:航天新气象科技有限公司
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