56results about How to "Meet networking requirements" patented technology

The invention discloses a method and a device for selecting time synchronization sources. The method includes: allowing a boundary clock device or a slave clock device to select sources according to any parameters of clock sources, such as primary reference clock source quality level, primary reference time source quality level, co-existence or no co-existence of primary reference clock sources and primary reference time sources in a device, device port clock priority parameter, message delay change indicator, and time synchronization link symmetry indicator. The method and device are applicable to time-synchronized source selection schemes, multiple relevant parameters can be fully utilized to select sources, and accordingly source selection reasonability is improved. A protection mechanism is also achieved for a time synchronization network and used for protecting switching, certain special faults of the time synchronization network can be timely sensed and treated, interaction between a clock synchronization network and the time synchronization network is supported, flexibly in switching the time synchronization network is improved and time synchronization performance is protected from influence.

The invention provides an automatic matching method for radio frequency channels of a multichannel distributed antenna system. The automatic matching method for the radio frequency channels of the multichannel distributed antenna system comprises steps of diving optical fiber transmission resources into a plurality of signal transmission units which have fixed bandwidth and mapping to any radio frequency channel; setting up a carrier wave information chart through a main AU (Access Unit) according to configuration information of the radio frequency channels and sending the information chart to all RUs (Remote Units); setting up a mapping list of main AU radio frequency channels and the signal transmission units through the main AU according to the carrier wave information chart; setting up a mapping list between auxiliary radio frequency channels and the signal transmission units when the carrier wave information chart is received; setting up a mapping list between the radio frequency channels and the signal transmission units according to the operating frequency band range of a power amplifier module of a local machine and in combination with carrier wave configuration information when the RUs receive the carrier wave information chart form the main AU. The automatic matching method for the radio frequency channels of the multichannel distributed antenna system has the advantages of providing a carrier wave free dispatching method for a multimode and multi-standard DAS (Data Acquisition System), increasing the extendibility of the system and enabling few parts to be changed for a same set of software and hardware system to satisfy networking requirements of various application scenarios.

The invention relates to the technical field of aircrafts and provides an aircraft and a control method, device and electronic device thereof. The aircraft comprises an aircraft body and a communication relay device arranged on the aircraft body. The communication relay device is suitable for making the aircraft a communication relay node to achieve communication between at least two devices needing communication. Therefore, a communication network between two or more points can be set up through the aircraft. The position of the aircraft is easy to adjust, satisfies the networking requests when barrier exists between the communication points or cable entities cannot be laid. The networking cost is lower than satellite communication.

The invention provides a method and device for sharing an internet protocol (IP) address by a host device and a standby device. The method comprises appointing a floating IP address, setting relevance between the floating IP address and the host device and enabling the floating IP address to be not related to the standby device; floating the floating IP address to a new host device when the original standby device is switched into the new host device, and removing the relevance between the floating IP address and the original host device. The method and device does not need single design of a decision-making process of the host device, does not need a special port connection line, can be bonded with the host state of the device, reduces software complexity and meets various networking requirements.

This invention discloses a tower machine automatic safety monitoring system and method based on ZigBee. A ZigBee communication unit is further mounted on a control desk of traditional tower machine side and is used for the information transfer between the control desks of the tower machine sides or between the control desks of the control room sides; the control desk of the control room side includes the ZigBee communication unit and an upper computer which are used for receiving and processing the real time information sent by the control desk of the tower machine side; starting up and initializing; the tower machine side and the control room respectively and independently work; the tower machine collects the working state information of the tower machine, and the control room is opened to wait to receive; the control desk of the tower machine side is able to process anti-control to the tower machine after processing the collected information; the control room backups and displays information in real time. This invention has advantages of flexible network installation and multi-network topology, and is satisfied with the order of network installation of reliability and stability of the tower machine safety monitoring system, and the design targets of safe producing and monitoring the production. This invention is better suitable for the combined working condition of multi-tower machine.

The invention is concerned with the transmitting signaling method with the conversation boundary controller in the communication system, it includes: the user equipment in the first network sends the signaling message of the login request to the signaling static transform function entity; after the signaling static transform function entity receives the signaling message, the signaling static transform function entity reworks the aiming IP address / port of the signaling message into the IP address / port of the signaling control function entity, reworks the source IP address / port into the IP address / port that the signaling static transform function entity assigns by itself, sends the signaling message to the signaling control function entity; the signaling control function entity processes analysis to the signaling message again and sends the signaling message to the function entity in the second network. The invention is also concerned with the communication system with the conversation boundary controller. The invention can avoid the baleful attack of the signaling control function entity in the conversation boundary controller, and the dispose of the conversation boundary controller is more agility and not limited by the group network of the actual network.

The embodiment of the invention discloses a method, an apparatus and a system for negotiating a channel, wherein the channel negotiating system comprises the following steps: acquiring channel occupation information; sending a channel negotiating executing frame including a channel switching way to at least one networked network equipment according to the channel occupation information, so that the at least one networked network equipment switches a current working channel according to the channel switching way to generate an idle channel; and receiving a channel negotiating executing confirming frame which is fed back by the networked network equipment, and implementing a networking operation on the idle channel. According to the channel negotiating method provided by the embodiment of the invention, the bandwidth utilizing rate and the data transmission rate are improved.

The invention relates to a semi-peer-to-peer acentric ad hoc network topology establishment method and apparatus for dividing a large number of nodes into two levels of multi-clusters. The ad hoc network topology establishment method comprises the following steps: dividing nodes into a plurality of node clusters, forming a plurality of second level ad hoc networks for the cluster nodes, selecting nodes in each node cluster to form a first level ad hoc network, and obtaining network topology composed of a plurality of ad hoc networks, wherein arbitrary two nodes in the network topology can perform communication. Compared with the problems of limited node number and poor expansibility of the ad hoc network topology in the prior art, the network topology in the embodiment of the invention increases the number of the nodes in the ad hoc networks, and the data transmission and processing among a large number of nodes can be supported. A data link network established based on the ad hoc network topology establishment method provided by the embodiment of the invention comprises a large number nodes, is flexible in architecture and high in expansibility, and thus being suitable for new generation of data link network structures in joint operation of multiple army categories.

The invention relates to a cluster service realization method, a system, a terminal, a base station and a cluster core network dispatch subsystem (DSS). The method comprises the following steps: a RRC connection establishment step; a cluster service context establishment step in which an E-UTRAN and the cluster core network dispatch subsystem (DSS) establish a cluster service context; a configuration step in which the E-UTRAN carries out cluster null interface configuration on a cluster service speaking terminal and a cluster service listening terminal; a paging step in which the E-UTRAN pages the listening terminal according to a paging message of the cluster core network dispatch subsystem; and a cluster service data forwarding step in which the E-UTRAN forwards cluster service data according to the cluster service null interface configuration. By the adoption of the cluster service realization method, the system and the network element of the invention, professional cluster services can be provided without being influenced by a LTE service.

The invention provides a sense coexisting TD-SCDMA and sensor network convergence transmission system, belongs to the technical field of broadband wireless mobile communication networks and aims at the problem that data transmission of an existing wireless sensor network cannot adapt to the demands of complicated electromagnetic and geographical environments on different networking modes. The sense coexisting TD-SCDMA and sensor network convergence transmission system comprises a sensor node, an aggregation node and a central node. The sensor node is used for monitoring an electromagnetic frequency spectrum and transmitting monitored data to the aggregation node. The aggregation node is used for reporting a network topological graph and relaying and forwarding data. The central node is used for serving as a control node, issuing an instruction, summarizing frequency spectrum monitoring information and generating the network topological graph. The sensor node, the aggregation node and the central node respectively have Wi-Fi and TO-SCDMS transmission means, and the data can be transmitted in Wi-Fi and TO-SCDMS hybrid networks. The sense coexisting TD-SCDMA and sensor network convergence transmission system is used in a wireless sensor network.

The invention discloses a power transmission and transformation equipment Internet of Things node equipment wireless communication method. A broadcast channel, a downlink control channel, a multicastchannel, a downlink shared channel, an uplink random competition channel and an uplink shared channel are arranged in a communication channel between master equipment and slave equipment in the powertransmission and transformation equipment Internet of Things; different channels are distinguished through channel type fields of the MAC frame header; communication processes between the master device and the slave devices are set and include a node broadcasting process, a random access process, a pre-allocation registration process, a scheduling communication process of an uplink shared controlchannel, a discontinuous reception DRX scheduling communication process, a communication process of a downlink shared control channel, a packet fragmentation process and the like. According to the invention, standardized access of mA-level power consumption state sensing sensors with large data volume such as power transmission and transformation equipment Internet of Things waveforms and the likecan be satisfied, networking between the aggregation node and the access node is realized, and the requirements of mA-level communication power consumption, sensor synchronous sampling and reliable networking coverage of a service scene are satisfied.

The invention discloses a DHT system networking method and system, network equipment and a readable storage medium of a computer, and the method comprises the steps: transmitting a DHT routing table to an intranet node after a networking instruction is received; after the intranet node determines a target agent module from the DHT routing table, receiving a connection request sent by the intranetnode; and connecting the intranet node with the target agent module according to the connection request, storing the node ID of the intranet node to an agent module routing table, and taking the network address of the target agent module as the extranet address of the intranet node. The problem that the number of nodes is insufficient due to the fact that an existing DHT system can only carry outnetworking between the outer network nodes is solved, the inner network nodes are connected into the DHT system through the target agent module, the outer network nodes do not need to be specially arranged to meet the networking requirement of the DHT system, the networking cost is saved, and the networking efficiency is improved.

The invention belongs to the technical field of power electronic conversion, and particularly relates to an isolation type high-frequency switch constant-current converter. The isolation type high-frequency switch constant-current converter comprises a high-frequency switch constant-current conversion module, a constant-voltage power supply module, a driving module which can output stable pulse wave forms and a control module. The high-frequency switch constant-current conversion module comprises a high-frequency constant-current conversion circuit and a rectifying filtering circuit. The control module comprises a starting circuit and a protection circuit. The constant-voltage power supply module is connected with the driving module, the high-frequency constant-current conversion circuit and the starting circuit. The driving module is connected with the high-frequency constant-current conversion circuit, the high-frequency constant-current conversion circuit is connected with the rectifying filtering circuit, the rectifying filtering circuit is connected with the protection circuit and the starting circuit is connected with the high-frequency constant-current conversion circuit. The isolation type high-frequency switch constant-current converter is simple and effective in design, simple in constant-voltage / constant-current conversion process, high in efficiency and capable of achieving the purposes of constant current outputting, constant current conversion, constant current branching and constant current circuit networking, and is provided with no high-loss device.

The invention discloses a slave, a communication expansion card and a networking system. The networking system comprises the expansion communication card, a master and the slave. The slave comprises afirst preset interface. The expansion communication card comprises a communication bus interface and a second preset interface. The master is connected with the communication bus interface of the expansion communication card through a communication bus. The slave is connected with the expansion communication card through the first preset interface connected with the second preset interface. The expansion communication card carries out protocol format conversion according to the types of the communication bus, the first preset interface and the second preset interface to realize communicationbetween the master and the slave. According to the networking system, the first preset interface is arranged on the slave, and the interfaces of the slave are unified; the expansion communication cardis used to meet the networking requirements of different types of communication buses; and the flexibility of the networking system is improved.

A high-reliability network control intelligent socket is disclosed and comprises an MCU, an electric power carrier wave module, a wireless communication module, a network communication module, a power source and a relay, wherein two way transmission between the MCU and the electric power carrier wave module, the wireless communication module and the network communication module; electric power is supplied to the MCU via the power source, signals received by the MCU are then processed and output to control state switching of the relay, and therefore on / off of the power source can be controlled.

The invention discloses a signal processing method, system and equipment, and the method comprises the steps: receiving a multi-band transmission signal, and determining a single radio frequency remote channel for transmitting the multi-band transmission signal; performing digital conversion on the multi-band transmission signal to obtain a multi-band radio frequency signal; frequency conversion and amplification are carried out on the multi-band radio frequency signals, so that the total transmitting power value of the multi-band radio frequency signals is not greater than the output power value of a single radio remote channel; and transmitting the multi-band radio frequency signals through a single radio frequency remote channel. The frequency conversion and amplification of the transmitted signal are carried out in the remote radio frequency equipment, and the power required by the transmission of the transmitted signal is adjusted, so that the multi-band and multi-system signals can be transmitted through a single remote radio frequency channel, and the flexibility of the frequency band combination of the remote radio frequency equipment is improved; while the networking requirements of multiple operators are met, the size of the multi-frequency radio remote device is reduced, and the system construction cost is further reduced.

The invention provides an RDSS and wifi based Beidou micro base station dynamic mixed networking method to enable a Beidou micro base station based on Beidou RDSS and wifi combination to realize multi-user access and network construction. According to the method, corresponding flows are provided for RDSS link, wifi link, and RDSS and wifi mixed link scenes respectively. The method can be applied to solve the problems in constructing the layered dynamic mixed network based on the RDSS satellite link and the wifi link, and can be used to realize interconnection and intercommunication of access terminals of the Beidou RDSS micro base station under the condition of heterogeneous network.

The invention discloses gateway equipment, a system and a method for implementing butt joint of trunks. The system comprises soft switching equipment, the gateway equipment and butt joint equipment, wherein the soft switching equipment is used for realizing corresponding service through signaling interaction with the gateway equipment; the gateway equipment is used for allocating time slot resources to signaling of different standards, encoding interoffice signaling forwarded by the soft switching equipment into standard signaling according to managed butt joint equipment information, and transmitting the standard signaling to the corresponding butt joint equipment according to an appointed time slot; and the butt joint equipment is used for receiving the corresponding standard signaling from the gateway equipment in the appointed time slot according to the time slot resource allocation information of the butt joint equipment managed by the gateway equipment. By the gateway equipment, the system and the method, different time slot resources are allocated to any standard signaling of an E1 / T1 trunk, and a networking requirement that one trunk supports various types of standard channel associated signaling is met; therefore, finite trunk resources of the E1 / T1 are used effectively.

A method of transmitting a signaling packet in a communication system with session border controller SBC comprises that: a user device sending a signaling packet with a register request to a signaling static translation function entity in a first network; after the signaling static translation function entity receives the signaling packet, modifying the destination IP address / port number of the signaling packet to the IP address / port number of the signaling control function entity according to a mapping relation of the IP address / port number of the signaling static translation function entity which is preset or obtained by other mode and the signaling control function entity, and modifying the source IP address / port number to the IP address / port number distributed by the signaling static translation function entity itself, and then sending this signaling packet to the signaling control function entity. The signaling static translation function entity sets network address transformation (NAT) table item of the signaling packet of the user device. The table item is the corresponding relation of the IP address / port number in the first network and the IP address / port number distributed by the signaling static translation function entity itself. The signaling control function entity analyzes the signaling packet and sends to the function entity in a second network. At the same time, the invention also discloses a communication system with a Session Border Control (SBC). The invention can effectively prevent from the malice attack on the signaling control function entity in the SBC by the user, and makes the system to be more secure and enables the SBC to be more flexible without the restriction from the networking in the actual network.

The invention discloses a gateway capacity enlarging method in a long-term-evolution (LTE) femto and a gateway capacity enlarging apparatus in the long-term-evolution (LTE) femto. The gateway capacity enlarging method of the invention is different from a method in the prior art in which only one S1 link exists between a home?eNB?gateway (HeNB GW) and a mobility?management?entity (MME) in the long-term-evolution (LTE) femto in that a plurality of S1 links for signaling or data transmission are built between the home?eNB?gateway (HeNB GW) and the mobility?management?entity (MME), and therefore, the capacity of the home?eNB?gateway (HeNB GW) can be enlarged based on a used protocol, and networking requirements can be satisfied. According to the gateway capacity enlarging method and apparatus in the long-term-evolution (LTE) femto of the invention, the number of required S1 links is determined based on existing network planning as well as system real-time or periodic data statistics, and therefore, existing network use requirements can be satisfied, and system resources will not be wasted to establish free links; the S1 links are selected to be built on different stream?control?transmission?protocols (SCTP) or different streams loaded by the same stream?control?transmission?protocol (SCTP) according to the transmission capacity of a current stream?control?transmission?protocol (SCTP), and therefore, the capacity of the home?eNB?gateway (HeNB GW) can be further enlarged.

The invention discloses an addressing method of a digital simulation APP hybrid system. The addressing method of the digital simulation APP hybrid system comprises the specific process of registering a digital simulation entrance machine, a digital fence machine, a digital management machine and an APP through an internet management server to obtain a protocol address book of the internet, obtaining the address in a protocol server and logging in the protocol server; finding a final protocol address through a corresponding relationship between a room number and the protocol ID while calling; then performing audio and video intercommunication through the protocol server. The addressing method of the digital simulation APP hybrid system combines the existing system characteristics, realizes interconnection of a digital system, a simulation system and the APP, is low in cost, solves the addressing problem of three different applications, and is safe, stable and reliable. The addressing way not only can meet an LAN demand, but also can meet a pure public network networking requirement and a hybrid networking requirement.

The invention provides a whole cabinet server management system and a configuration method. According to the system, a server calculation node is connected with a data network through a first port, and is connected with a management network through a second port; an RMC network port is connected with the management network; a server BMC is connected with the RMC through an I2C bus, and the serverBMC is further connected with the RMC through a USB bus. According to the invention, a scheme of adding a network MAC to the BMC is realized, and a network topology structure between the RMC and the node BMC is solved. Two network topology structures at present are fused, and the networking requirements of different customers can be met by using the design scheme.

The invention provides an MIMO pseudo satellite system base station device. The MIMO pseudo satellite system base station device comprises an m-channel pseudo satellite receiving module, a baseband signal processing module, a baseband signal generating module and an n-channel pseudo satellite transmitting module. According to the invention, m paths of pseudo-satellite signals can be transmitted and n paths of pseudo-satellite signals can be received at the same time. A plurality of paths of pseudo satellite transmitters in a single MIMO pseudo satellite base station can form an independent pseudo satellite positioning constellation, so that the small-area networking positioning requirement is met; a plurality of MIMO pseudo satellite base stations can also realize clock reference synchronization among the base stations in a bidirectional receiving mode. According to the device provided by the invention, networking of the pseudo satellite positioning system is more flexible, the cost is lower, clock synchronization among a plurality of base stations can be realized, and the precision and stability of positioning service are improved.

The invention discloses an alternating current charging pile control system with multiple communication modes, and belongs to the technical field of electric vehicle charging. The system comprises a main control unit, a communication unit, an electric quantity detection and billing unit, a PWM wave output unit, a CP / CC signal detection unit, an execution unit, a stabilized voltage supply unit, a power conversion unit, a storage unit, a clock unit, a man-machine interaction unit and a charging gun. The main control unit is respectively connected with the communication unit, the electric quantity detection and charging unit, the PWM wave output unit, the CP / CC signal detection unit, the execution unit, the voltage-stabilized power supply unit, the storage unit, the clock unit and the man-machine interaction unit, and the power supply conversion unit is connected with the voltage-stabilized power supply unit. According to the system, by setting a plurality of communication modes, the networking requirements of a user in a plurality of complex environments are met, and the installation cost and the labor cost of the charging pile are effectively reduced; the charging of charging vehicles with different power requirements is met; the charging safety and reliability of the charging vehicle are improved, and use is convenient for users.

The invention discloses a method and a system for testing parking brake performance, which overcome the defect of the method needing to build a parking slope and directly measure the traction force of a parked vehicle, a force cell is connected with the tested vehicle through a wire rope, traction force which accounts for 20 percent of the overall weight of the tested vehicle or 15 percent when the overall weight of the vehicle is less than 1.2 times as heavy as the curb weight is applied on the vehicle according to standard specifications, the parking brake performance is acceptable when thetested vehicle stays still, otherwise is unacceptable, and the acceptability or unacceptability of the parking brake performance can be judged on an on-site screen or remotely transmitted to a computer and judged in the form of reading. The testing system is small and does not require the building of a special-purposed slope, thus dispensing with land occupation and capital expenditure needed by the slope method to build the testing slope and creating favorable conditions for various vehicle testing stations to carry out the testing operation. Because the testing system adopts a zigbee wireless communication mode for the first time, the testing system reduces electricity consumption, is light, and does not have external cables.

The invention discloses a road pedestrian detection system. The road pedestrian detection system comprises a pedestrian detection device, and an early-warning prompting end of the pedestrian detectiondevice is connected with a vehicle-mounted terminal; the pedestrian detection device is connected with a cloud side through multiple base stations. A networking method of the road pedestrian detection system comprises the following steps of 1, setting parameters, wherein the distance D between every two adjacent track spikes, the maximal communication distance L between every two communication units, and the maximal communication distance S between every two base stations are set; 2, conducting networking among multiple track spikes included in the pedestrian detection device; 3, conducting networking between the pedestrian detection device and the vehicle-mounted terminal; 4, conducting networking between the pedestrian detection device and the cloud side through the base stations. The road pedestrian detection system has the advantages that the communication efficiency is improved, the communication time delay is reduced, and the outgoing safety of pedestrians is guaranteed.

The present invention provides a method for realizing load sharing. The method includes the following steps: defining the priorities of several links between the two entities, and storing the information in the first entity; The link with the highest required priority is selected from the links connected to the process of the second entity, and the signaling is carried on the link; the signaling is transmitted to the second entity via the link, and the second entity is sent by the second entity. Process output after processing. On the basis of the three service flow sharing methods of the active / standby method, the load sharing method and the broadcasting method provided in the SIGTRAN standard protocol, the present invention also proposes a method for realizing the service flow sharing by using the link priority, which is more convenient for users. A method for selecting a service bearer is provided, so that the service switching is faster, and the flexibility of the system application is also improved.

The invention provides an automatic matching method for radio frequency channels of a multichannel distributed antenna system. The automatic matching method for the radio frequency channels of the multichannel distributed antenna system comprises steps of diving optical fiber transmission resources into a plurality of signal transmission units which have fixed bandwidth and mapping to any radio frequency channel; setting up a carrier wave information chart through a main AU (Access Unit) according to configuration information of the radio frequency channels and sending the information chart to all RUs (Remote Units); setting up a mapping list of main AU radio frequency channels and the signal transmission units through the main AU according to the carrier wave information chart; setting up a mapping list between auxiliary radio frequency channels and the signal transmission units when the carrier wave information chart is received; setting up a mapping list between the radio frequency channels and the signal transmission units according to the operating frequency band range of a power amplifier module of a local machine and in combination with carrier wave configuration information when the RUs receive the carrier wave information chart form the main AU. The automatic matching method for the radio frequency channels of the multichannel distributed antenna system has the advantages of providing a carrier wave free dispatching method for a multimode and multi-standard DAS (Data Acquisition System), increasing the extendibility of the system and enabling few parts to be changed for a same set of software and hardware system to satisfy networking requirements of various application scenarios.

This invention discloses a method to realize SMS intercommunication based on mixed discharging number. Wherein, creating correlation between user's logic and physical number and user's SMS center number in SHLR; when transmitting original SMS, the SMS center request to find the target SMS center address in SHLR according to received request; SHLR returns target SMS center address according to obtained correlation; original center transmits SMS to target center to send SMS to target user. It also discloses a opposite communication network system.