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33 results about "Substrate network" patented technology

Virtual network mapping method based on principle of proximity

The invention provides a virtual network mapping method based on a principle of proximity. In the method, when a substrate network node is selected in node mapping, not only is available resource taken into account, but also whether the principle of proximity is satisfied is taken into account, namely whether link connection exists between the substrate network node and the substrate network node which is successful in mapping; and in addition, a mechanism that a node is lined up according to the remaining resource in the virtual network node mapping and a mechanism that a link is lined up according to the bandwidth before the virtual network link mapping are introduced into the method. The virtual network mapping method based on the principle of proximity provided by the invention is suitable for the networks which are already used or are going to use a network virtualization technology to perform network segregation, resource management scheduling or customized service providing, such as an experiment network, an operator network. The virtual network mapping method based on the principle of proximity has the characteristics of low complexity of link mapping, high utilization ratio of the substrate network resource, high success ratio of the virtual request mapping, and the like.
Owner:BEIJING UNIV OF POSTS & TELECOMM

MOS (Metal Oxide Semiconductor) transistor radio frequency macro model establishing method

InactiveCN101976293AExtended application frequency rangeGuaranteed accuracySpecial data processing applicationsCapacitanceSubstrate network
The invention relates to an MOS (Metal Oxide Semiconductor) transistor radio frequency macro model establishing method which comprises the steps of: establishing an MOS transistor, a grid electrode node, a source electrode node, a drain electrode node and a substrate node, connecting a grid electrode to the grid electrode node by a grid resistor, connecting a source electrode to the source electrode node by a source resistor, and connecting a drain electrode to the drain electrode node through a drain resistor; establishing a source electrode junction capacitor, a drain electrode junction capacitor, a first substrate resistor, a second substrate resistor, a substrate bulk resistor and a substrate well resistor; and connecting the first substrate resistor, the second substrate resistor, the substrate bulk resistor and the substrate well resistor together by resistor network nodes. A simulation macro model obtained by the method of the invention has a four-resistor substrate network of a T-shaped structure; and by using the resistor substrate network, the utilization frequency of the MOS transistor radio frequency macro model can be ensured to be above 20 GHz, thereby greatly expanding the application frequency range of CMOS (Complementary Metal Oxide Semiconductor) radio frequency integrated circuit EDA (Electronic Design Automation) design.
Owner:SHANGHAI INTEGRATED CIRCUIT RES & DEV CENT +1

Method for operating at least one virtual network on a substrate network and a virtual network environment

For allowing an efficient consumption of resources of a physical substrate network a method for operating at least one virtual network on a substrate network is claimed, especially within a framework of a self-organizing model for optimizing resource consumption of the substrate network, wherein the virtual networks are including a plurality of virtual nodes each being assigned to respective substrate nodes of the substrate network and wherein two adjacent virtual nodes of the same virtual network are connected by a virtual link which is corresponding to one or more respective substrate node links, including the following steps: Identifying a traffic pattern within at least two substrate nodes with regard to the resources individually consumed by the virtual networks; reallocating of the resources depending on an evaluation of the identified traffic patterns for optimizing resource consumption within the substrate nodes, wherein the identifying step and the evaluation and decision to execute the reallocation of resources is performed locally at each individual substrate node. Further, an according virtual network environment on a substrate network is claimed, preferably for carrying out the above mentioned method.
Owner:NEC CORP

Distributed loop-opening automatic control system and method using utilizing electronic communication equipment

The invention discloses a distributed loop-opening automatic control system utilizing electronic communication equipment. The system comprises the electronic communication equipment, a message receiving and dispatching module, a message identification and transmission module, a main control module connected with a substrate network and a storage module for storing a control program sequence, wherein the electronic communication equipment sends a control instruction to the message receiving and dispatching module; the message receiving and dispatching module receives the control instruction and sends the control instruction to the message identification and transmission module; the message identification and transmission module receives the control instruction, identifies the control instruction, and sends the identified control instruction to the main control module; and the main control module receives the identified control instruction, extracts the control program sequence matched with the control instruction from the storage module according to the identified control instruction, and controls the operation of a controlled element according to the control program sequence. The invention also discloses a distributed loop-opening automatic control method utilizing the electronic communication equipment. The system and the method can be widely applied to different industrial control fields and have precise control and good working stability.
Owner:物美科技集团有限公司

Three-dimensional-structured sulfur-copper compound/carbon fiber composite material and preparation method and application thereof

The invention discloses a three-dimensional-structured sulfur-copper compound/carbon fiber composite material and a preparation method and an application thereof. The composite material comprises a conductive substrate network mainly formed by carbon fibers, and sulfur-copper compound nanosheets for coating the surfaces of the carbon fibers. The preparation method comprises the steps of dissolvinga copper source and a carbon source into an organic solvent to form a uniform spinning solution; performing processing on the spinning solution by an electrostatic spinning method to obtain a spinning material; performing pre-oxidization and carbonization treatment on the spinning material in sequence to obtain a three-dimensional composite material precursor; and performing a mixed reaction on the precursor and a sulfur source solution to obtain the composite material. The three-dimensional-structured sulfur-copper compound/carbon fiber composite material disclosed in the invention has the advantages of large specific surface area, high active material loading amount, excellent conductivity and the like, and can be used for establishing a supercapacitor with high capacity; and in addition, the preparation process is simple and easy to control, the production efficiency is high, the cost is low, and large-scale implementation can be facilitated.
Owner:SUZHOU INST OF NANO TECH & NANO BIONICS CHINESE ACEDEMY OF SCI

Three-dimensional structure sulfur copper compound/carbon fiber composite material, its preparation method and application

The application discloses a three-dimensional structural sulfur-copper compound / carbon fiber composite material, its preparation method and application. The composite material includes: a conductive matrix network mainly formed by carbon fibers; and sulfur-copper compound nanosheets coated on the surface of the carbon fibers. The preparation method comprises: dissolving the copper source and the carbon source in an organic solvent to form a uniform spinning solution; treating the spinning solution with an electrospinning method to obtain a spinning material; sequentially pre-oxidizing the spinning material and Carbonization treatment to obtain a three-dimensional composite material precursor; mixing and reacting the precursor with a sulfur source solution to obtain the composite material. The three-dimensional structure sulfur-copper compound / carbon fiber composite material of the present application has the advantages of large specific surface area, large active material loading capacity, and excellent electrical conductivity. It can be used to construct supercapacitors with large capacity, and the preparation process is simple and easy to control, and the production efficiency is high. Low cost, conducive to large-scale implementation.
Owner:SUZHOU INST OF NANO TECH & NANO BIONICS CHINESE ACEDEMY OF SCI

Virtual network mapping method based on principle of proximity

The invention provides a virtual network mapping method based on a principle of proximity. In the method, when a substrate network node is selected in node mapping, not only is available resource taken into account, but also whether the principle of proximity is satisfied is taken into account, namely whether link connection exists between the substrate network node and the substrate network node which is successful in mapping; and in addition, a mechanism that a node is lined up according to the remaining resource in the virtual network node mapping and a mechanism that a link is lined up according to the bandwidth before the virtual network link mapping are introduced into the method. The virtual network mapping method based on the principle of proximity provided by the invention is suitable for the networks which are already used or are going to use a network virtualization technology to perform network segregation, resource management scheduling or customized service providing, such as an experiment network, an operator network. The virtual network mapping method based on the principle of proximity has the characteristics of low complexity of link mapping, high utilization ratio of the substrate network resource, high success ratio of the virtual request mapping, and the like.
Owner:BEIJING UNIV OF POSTS & TELECOMM

Service combination reconstruction method under dynamic network environment

The invention discloses a service combination reconstruction method under a dynamic network environment. According to the invention, at a phase of execution of service combination, a family of cost functions is combined and real-time tracking is carried out on a suboptimal path by a client node by a low-flow pseudo service flow mode; and on the basis that a reason of a service failure is determined by a detection method during interruption of a service, a crosslevel decision algorithm decides to execute route restoration at a substrate network or/ and execute service replacement in a service network. The concrete process is as follows: a reason on service combination interruption is detected and identified at full speed; a link interruption module is detected by an IEEE802.11ACK frame module at a mechanism substrate, a route interruption module is detected by a handshake mechanism module at a route layer and a service interruption module is detected by a node time efficient module at a service layer; service combination reconstruction is divided into two levels; on the condition that the service combination is failed, a cross level service combination reconstruction module decides to execute route restoration at a substrate network or/ and to execute service replacement in a service network.
Owner:UNIV OF SCI & TECH BEIJING
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