1199 results about "Trunk line" patented technology

A system is provided for creating a tunneling service from the use of a traditional tunneling protocol, such as the layer two tunneling protocol (L2TP). In particular, the L2TP tunneling protocol, which is designed to go point-to-point between an L2TP Access Concentrator (LAC) and an L2TP Network Server (LNS), is abstracted so that L2TP becomes an access protocol to a tunneling service. A new L2TP tunnel merger and management (LTM) service is created which severs the tight configuration relationships between LAC and LNSs. Only a tight configuration between an LAC and its LTM edge device and between an LNS and its LTM edge device is required. An internal trunk protocol (INT protocol) carries needed information between LTM edge devices to establish ingress / egress L2TP access calls inside of separate L2TP access tunnels on opposite LTM edge devices. The addition of another LAC is accomplished by re-routing L2TP tunnels within the LTM service without reconfiguration of the LNSs, and the addition of another LNS is accomplished by re-routing L2TP tunnels within the LTM service without reconfiguration of the LACs. The LTM service determines the need for both additional trunk and access resources and establishes both new trunk / access tunnels to provide additional resources. The LTM service also determines excess resources on both trunk and access entities and releases trunk / access tunnels to provide the needed additional resources.

The invention discloses an intelligent coordination control method of a dynamic bi-directional green wave band for an urban traffic trunk road. The method comprises the steps of starting, processing coordination parameters, processing intersection parameters, processing time and processing cycle, etc. The method adopts a double-stage control structure, namely, a control layer of a traffic control center server and a control layer of an intersection intelligent signal controlling machine, through the information interaction and the coordination of the traffic control center server and the intersection intelligent signal controlling machine, phase sequence is optimized in an on-line manner; and common period, highway section upper phase difference, highway section down phase difference, the starting time of an upper coordination phase, the starting time of a down coordination phase, green ratio at each intersection and other key control parameters are optimized and calculated on a real-time basis. The intelligent coordination control method gets rid of the limit of equal intersection intervals required for the coordination control of the green wave band for the urban traffic trunk road, and realizes the unceasing travel of bi-directional traffic flows on the main road by applying the traffic engineering technique, the artificial intelligence technique and the automatic control technique, thereby reducing the parking rate while the traffic capacity of the trunk road is improved, and obviously reducing the traveling time.

A Vpp level detecting circuit detects a potential on a Vpp trunk line which is provided commonly to a plurality of memory array banks for supplying a boosted potential thereto, and a boosted potential pump circuit supplies a current to the Vpp trunk line in accordance with a result of the detection. Since the position on the Vpp trunk line where the Vpp level detecting circuit performs the monitoring is substantially equally spaced from the respective memory blocks, an influence caused by an active state of the memory array bank can be suppressed during control of the potential on the Vpp trunk line.

The invention discloses an automatic generation method used for a single line diagram of a distribution network and based on topological hierarchy. The method comprises the following steps: deleting related equipment in a topological structure of the distribution network, and simplifying the topological structure of the distribution network; acquiring key nodes of the topological structure of the distribution network, and generating a main framework of the topological structure of the distribution network; arranging the positions of the key nodes based on a gravitation-repulsion model, and obtaining a skeletal structure based on the gravitation-repulsion; describing the topological structure of the distribution network through an outgoing line-trunk line-T-shaped key node-branch line model of a power station; finishing the arrangement and the automatic mapping of the equipment in the power station on the basis of the topological structure of the equipment in the power station; and performing routing mapping without overlap or intersection on decibels of the trunk line and the branch line respectively. The automatic generation method achieves automatic generation of the single line diagram of the distribution network above a certain scale, and simultaneously, the generated single line diagram is clearer and more attractive through the routing algorithm without overlap or intersection.

An internet router is implemented as a network fabric of fabric routers and links. The internet router receives data packets from trunk lines or other internet links and analyzes header information in the data packets to route the data packets to output internet links. The line interface also analyzes the header to define a fabric path through the router fabric. The internet packets are broken into flits which are transferred through the router according to a wormhole routing protocol. Flits are stored in fabric routers at storage locations assigned to virtual channels corresponding to destination internet links. The virtual channels and links within the fabric define virtual networks in which congestion in one virtual network is substantially nonblocking to data flow through other virtual networks. Arbitration is performed at each fabric router to assign packets to virtual channels and to assign virtual channels to output fabric links. A virtual channel is enabled for possible assignment to an output fabric link upon receipt of an indication that an input buffer is available at the next fabric router of the path.

The present disclosure relates generally to a wiring system for controlling one or more smart windows located within a building, and methods for installing such systems and / or replacing higher wattage systems with such systems.

The invention provides a real-time road traffic signal coordination optimization control method and a control system thereof and solves problems that real-time optimization for control characteristic parameters such as a signal period and a green signal ratio according road traffic flow change can be not realized in a traffic signal control system mainly in a multi-period fixed signal timing mode; traffic pass efficiency and pass capability are not high; traffic congestion or even traffic jam can not be effectively ameliorated. According to an active optimization real-time driving system based on traffic data, macroscopic control strategies and microscopic tactical control strategies are made according to different dynamic and static traffic scenes, main-line coordination optimization control and real-time dynamic crossing optimization control are actively carried out, the control characteristic parameters such as the signal period and the green signal ratio are dynamically adjusted and generated, dynamic benefit evaluation is controlled through controlling operation characteristic indexes, and real-time coordination control is carried out through gradual operation monitoring and repeated optimization searching.

The invention discloses a shield construction method of digging three parallel tunnels under a trunk railway, which belongs to the field of tunnel construction technology. The construction method of the invention comprises the procedure that: the model analysis on each construction sequence and method is made by a three-dimensional finite element and the shield construction sequence is selected; to select the reinforcement project of the railway bed is selected according to the influence degree of the dynamic stress, the load-carrying structural model is adopted to calculate and decide the shield area reinforcing bars enhancement project under the dynamic load of the railway train; the construction parameters are selected according to the test results and the performance of the shield machine, the front earth pressure is reasonably set , the synchronizing mortar injection is enhanced, the forward digging speed and the axis deviation are strictly controlled, the secondary mortar injection is made, the foam or mud is filled by utilizing a pre-embedded injection hole; the strict monitoring measures to monitor the shield construction process is adopted so that the construction unit can adjust the construction parameters in time and guarantee the construction safety. The invention not only guarantees the construction quality and the construction safety of the project but also creates good economic benefit.

A trunk line topology network is configured with: ECUs 1, 1, . . . being communication apparatuses transmitting and receiving data; and GW apparatuses 3a, 3b and a distribution apparatus 4 being a specific GW apparatus 4 that are connected to a communication line 5 being a trunk line, for relaying, through the GW apparatuses, data transmitted among the ECUs 1, 1, . . . . The distribution apparatus 4 includes a storage region utilized for a database DB. The data transmitted from the ECUs 1, 1, . . . are relayed by the GW apparatuses 3a, 3b and then aggregated by the distribution apparatus 4. The relayed data are stored once on the database DB. When transmitting data to the ECUs 1, 1, . . . , the distribution apparatus 4 reads out data from the database DB and transmits the data at the adjusted transmission timing. The GW apparatuses 3a, 3b relay the transmitted data.

A technique for detecting a fiber fault in a WDM optical access network includes launching a test signal into a fiber trunk line linking a central office (“CO”) to a remote node (“RN”) of the WDM optical access network. The test signal is generated by an optical time domain reflectometry unit to simultaneously fault test fiber access lines linking the RN to customer premises. The test signal is separated from downstream WDM signals at the RN. The test signal is power split at the RN into a plurality of access line test signals. The access line test signals are each recombined with a corresponding one of the downstream WDM signals onto a corresponding one of the fiber access lines. Test signal reflections are received at the CO from the fiber access lines as a reflection signature and analyzed to identify a location of the fiber fault.

The invention provides a data syncretizing method for urban traffic circulation indexes, comprising the steps of: (1) data syncretizing for a crossing circulation index presented by an average delayed weighting expected value of vehicles from the various directions, (2) data syncretizing for a trunk line multi-crossing circulation index presented by an average travelling time delay for vehicles passing by the crossings of the trunk line, and (3) data syncretizing for a road network multi-crossing circulation index presented by an average travelling time delayed weighting expected value in each trunk line in the road network. The method of the invention realizes the optimizing control for traffic by acquiring traffic parameters to perform data syncretizing for urban traffic circulation indexes based on a traffic state acquiring technique of urban traffic. The invention has universality, comprehensiveness and flexibility.

In a stack of network units each includes a multiplicity of ports for receiving and forwarding addressed data packets and a forwarding engine which in response to address data selects at least one port for the forwarding of a data packet. A cascade connects the units and allows the transmission of a packet placed on said cascade by a unit to all the other units. Each unit is responsive to a packet received from the cascade to forward or discard the received packet according to predetermined forwarding rules. A trunk includes a respective port of each of some but not necessarily all the units. Each unit includes a 'trunk box member' register indicating which of the units has at least one port connected in the trunk When a first unit in the stack receives, at a port connected neither to the trunk nor the cascade, a packet destined for the trunk, the first unit directs that packet to a port connected to the trunk if the first unit has such a port and otherwise sends that packet to the cascade. When a second unit in the stack, having a port connected to the trunk, receives by way of the cascade from the first unit a packet destined for the trunk, the second unit determines with recourse to the forwarding rules, data identifying the first unit and the respective register whether to forward said packet to the trunk. The invention is particularly intended for use in stack-wide trunks operating according to 'local forwarding' and 'next-in-line' rules and allows units in the stack to be omitted from direct connection to the trunk.

An optical multiplexing device is provided comprising multiple wavelength division multiplexers cascaded together. A first one of the wavelength division multiplexers has a common port and multiple optical ports which are optically coupled to the common port. The common port may be optically coupled to a trunk line of a system employing wavelength division multiplexing, for example, a fiber-optic telecommunication system employing 4, 8, 16 or other number of multiplexed channels. The optical ports include multiple channel ports, each of which is transparent to a corresponding wavelength sub-range and reflective of other wavelengths. The second wavelength division multiplexer has a common port optically coupled to one of the optical ports of the first wavelength division multiplexer. The second wavelength division multiplexer also has multiple optical ports which are optically coupled to its common port and include multiple wavelength-selective channel ports. A waveguide, such as a fiber-optic line, can optically connect the common port of the second wavelength division multiplexer to an optical port of the first wavelength division multiplexer. The cascaded WDMs each may be optically coupled to the output of a passive coupler and a housing may be provided defining an enclosed space in which the optical multiplexing device is mounted. Optionally, additional WDMs may be cascaded with the first two WDMs in a parallel or branched formation, an in-line formation or some combination. Preferably, the channels are interleaved, such that they are removed from the multiplexed signal in certain non-sequential order. The optical multiplexing device also may employ compound interleaving wherein adjacent channels are multiplexed by different ones of the cascaded WDMs. The optical multiplexing devices can operate to add signals, remove signals or a combination of both.

A network comprises a plurality of interconnected switches. At least one pair of switches is interconnected by a trunk formed from a plurality of individual links. A cost value is assigned to the trunk that is equal to the cost of one of the trunk's individual links. As such, a trunk is considered the same as an individual link when shortest path calculations are made. When multiple paths are computed as having the same lowest cost, the system balances load traffic between such lowest cost paths in a way that takes advantage of the higher bandwidth capabilities of trunks.

The invention discloses a multi-strategy and multi-object self-adaptation traffic control method. The multi-strategy and multi-object self-adaptation traffic control method is characterized by comprising the following steps that (1), traffic state inspection equipment collects traffic flow data in real time, obtains the traffic state information and sends the traffic state information to an intersection signal machine, and the intersection signal machine uploads the traffic flow data to a signal center control system; (2), the intersection signal machine calculates the traffic intensity of an intersection, judges the traffic states of the intersection and adjusts the control plan of the current intersection in real time according to the different traffic states; (3), according to the intersection traffic flow data uploaded in real time, the signal center control system optimizes the intersection signal control scheme from the global angle of a road network. According to the control method, the road network grade global optimization self-adaptation signal control method is provided through judgment and analysis of the traffic states of the road network, and artery coordination control applicable to any traffic state is achieved.

The rail transportation system of small vehicles is used to replace available underground railway and light rail system, and has small driverless vehicles running in closed rail. The system consists of vehicles, closed rails and stations, the vehicles are computerized automatic ones, the closed rails is provided with vehicle controlling equipment, and the vehicles are started from stations randomly for express service from station to station. The present invention has the advantages of great traffic amount similar to that of main stem transportation, personalized service, low construction investment and low running expensive. It may be used for both passenger transport and cargo transport, and municipal rail transportation network may be constructed.

A system and method for introducing a loopback capability for Multi-Protocol Label Switching (MPLS) bi-directional traffic trunks are discussed. MPLS is an emerging technology, which integrates Internet Protocol (IP) routing with label switching techniques. MPLS intends to provide new capabilities in the area of traffic engineering for IP networks. These traffic engineering capabilities will have to be combined with a set of complementary operation, administration and maintenance (OA&M) functions for effectively managing and operating MPLS-based networks. One such function is loopback. A loopback function provides the capability to transmit a OA&M packet on one or more segments of a bi-directional traffic trunk (BTT) in a MPLS network. Using a loopback function, parameters of a BTT, such as connectivity, delay and other Quality of Service (QoS) parameters, can be tested. The system and method provide different techniques for implementing loopback in an MPLS network.

An internet router is implemented as a network fabric of fabric routers and links. The internet router receives data packets from trunk lines or other internet links and analyzes header information in the data packets to route the data packets to output internet links. The line interface also analyzes the header to define a fabric path through the router fabric. The internet packets are broken into flits which are transferred through the router according to a wormhole routing protocol. Flits are stored in fabric routers at storage locations assigned to virtual channels corresponding to destination internet links. The virtual channels and links within the fabric define virtual networks in which congestion in one virtual network is substantially nonblocking to data flow through other virtual networks. Arbitration is performed at each fabric router to assign packets to virtual channels and to assign virtual channels to output fabric links. A virtual channel is enabled for possible assignment to an output fabric link upon receipt of an indication that an input buffer is available at the next fabric router of the path.

The invention relates to a cooperative control method and system for the trunk line and ramp of a city expressway, and belongs to the technical field of road traffic signal control. The system is characterized in that the system comprises a detector which is used for detecting the traffic flow states of the ramp and the trunk line; a signal lamp which is used for controlling the opening, closing and discharging of the ramp and the trunk line; a signal annunciator which is connected with the detector, the signal lamp and a control system, and is used for collecting the traffic flow operation state data of the ramp and the trunk line and uploading the data to the control system, and controlling the signal lamp according to a control command of the control system; and the control system whichselects a corresponding preset scheme according to a triggering threshold value, and transmitting the preset scheme to the signal annunciator. The system solves problems that a conventional section collection index is not accurate and the effectiveness is not high. The system employs a trunk line and ramp signal lamp linkage control strategy and scheme according to different scenes, and achievesthe cooperation of traffic organization and a signal control scheme and the dynamic response control of the ramp.

A transition device for an optical fiber connection system adapted to interconnect a trunk cable with a plurality of transceivers includes: a first set of at least four optical fibers, each of the optical fibers having a trunk end and a transceiver end; a single trunk end terminal having a plurality of trunk ports arranged in a first row, each port connected with a respective one of the set of optical fibers at its trunk end, wherein a first axis of symmetry divides the ports; and a plurality of transceiver end terminals, each of the transceiver end terminals having even numbers of transceiver ports, each of the transceiver ports receiving a respective one of the set of optical fibers at their transceiver ends. The arrangement of fibers received by each transceiver end terminal meet either of the following two conditions: (a) a first fiber originates from a first port in the trunk end terminal, and a second fiber originates from a second port in the trunk end terminal that is positioned at the mirror image location of the first port about the first axis of symmetry; or (b) each fiber is received in a first transceiver end terminal that has a corresponding second transceiver end terminal with the same number and arrangement of transceiver ports, and each fiber received in the first transceiver end terminal originates from a port in the trunk end terminal that has a mirror image port about the first axis of symmetry from which a fiber that is received in the second transceiver end terminal originates.

The invention discloses a green wave coordination control method for multiline public transport in a main trunk line, including the design steps of: arrangement of a pre-signal public transport priority control facility, control treatment of turning public transport vehicles, and arrangement of a green wave coordination control system for the public transport in the main trunk line. According to the green wave coordination control method for the multiline public transport in the main trunk line, a green wave coordination control technology is applied to the public transport vehicles running in the main trunk line, and the turning public transport vehicles can be treated by a pre-signal public transport priority control facility and phasing adjustment measures, so that the passing efficiency of all the public transport vehicles in the main trunk line can be improved, and the total delay in the main trunk line is reduced at the point of per capita delay; and besides, the pre-signal public transport priority control facility is introduced at an intersection, the priority passing right of the public transport vehicles, relative to social vehicles, is ensured, and the public transport vehicles can not miss a green wave signal even if queuing up.

A LAN-to-LAN VoIP system and related user interface. The VoIP system comprises a first LAN and a second LAN. The first LAN comprises a first local telephone system, a first communication module, a first IP-based extension, and a first host. The second LAN comprises a second local telephone system, a second communication module, a second IP-based extension, and a second host. Each communication module connects each local telephone systems to the Internet through a respective dynamic IP address, each IP-based extension is connected to the Internet through another dynamic IP address, and each host is connected to the Internet through a respective static IP address. Each IP-based extension can dial to the local telephone system directly in the same LAN or dial to the host followed by the local telephone systems across LAN. The user interface, used in each IP-based extension, comprises a first functional key for dialing to the trunk lines of the first local telephone system and a second functional key for dialing to the trunk lines of the second local telephone system.

The invention provides an intelligent distribution network distributed rapid protection system. The system comprises multiple intelligent distribution terminals and an intelligent distributed fast communication network. Each of the intelligent distribution terminals comprises an adaptive distribution terminal data acquisition terminal calculation module installed to each distribution network node, an intelligent distributed rapid communication network with a channel function of supporting the interformation exchange between terminals, an intelligent distributed protection interface module with the function of carrying out real-time peer-to-peer communication with upstream and downstream data acquisition modules, an intelligent distributed protection strategy decision and outlet control module which realizes the function of adaptively analyzing and judging a fault type / area and rapid tripping outlet isolation fault in a branch or trunk line fault condition in an intelligent distribution network, and an intelligent information communication service and interface module which realizes remote control communication. The invention also provides a protection method based on the intelligent distribution network distributed rapid protection system.

The invention discloses a switching method for interconnection and intercommunication of a CBTC system and a CTCS system. A switching transition area is arranged, two sets of vehicle-mounted equipmentof different systems are arranged on a train, the train crosses the switching transition area to complete switching of a control system, and a switching solution is provided for a scene where a mainline railway and urban rail transit are connected; the devices of the CTCS and the CBTC can be interconnected and intercommunicated through a switching scheme, so that a solution is provided for the integrated high-frequency subway part of the trunk line railway, and a possible development direction is provided for long-term fusion of the CTCS and the CBTC technology.

A coaxial cable compression connector for interconnecting braided coaxial cable to a trunk line equipment port is provided, wherein the connector is connected to a trunk line equipment port, a segment of cable is inserted within the connector, and the cable is caused to be radially compressed within the connector so as to provide an inexpensive, reliable and permanent connection between the braided coaxial cable and the connector without the usage of an adapter or a swivel joint.

The invention discloses a bus rapid transit signal priority timing method under trunk line coordination control. The bus rapid transit signal priority timing method under the trunk line coordination control comprises the following steps that: 1, an annunciator judges whether a bus application is detected by a bus rapid transit vehicle detector, forecasts a moment t1 when a bus rapid transit vehicle reaches a stop line if the bus rapid transit vehicle detector detects the bus application, and otherwise, ends the judgment at the current moment; 2, if the bus rapid transit vehicle detector detects the bus application during phase green light coordination and the bus rapid transit vehicle reaches the stop line at an intersection during the phase green light coordination, the annunciator keepsthe original signal timing constant, and otherwise, performs green light prolonging control; and 3, if the bus rapid transit vehicle detector detects the bus application during phase red light coordination and the bus rapid transit vehicle reaches the stop line at an intersection during the phase green light coordination, the annunciator keeps the original signal timing constant and otherwise, performs green light in-advance turning-on control.

An interconnect device for connecting a Bluetooth compliant cellular telephone to one or more wired telephones on an existing wired network. The interconnect device includes an interface to the wired network that emulates the behavior of a standard trunk line to a central office and includes a Bluetooth transceiver which communicates via short-range radio signaling with a Bluetooth transceiver in the cellular telephone. The interconnect device permits an outgoing call to be placed via the cellular telephone network from a conventional wired telephone by sending dial tone to the wired telephone when the cellular telephone is in range and not in use, accepting a called number from the wired telephone to the cellular telephone to initiate an outgoing call, and establishing a voice link between the wired telephone and the remote answering party via the Bluetooth transceivers and the cellular network. Incoming calls to the cellular phone are intercepted by the interconnect device which applies ringing signals to the connected wired telephones, any of which may be taken off-hook to answer the incoming cellular call.

The present invention is directed to provide a computing system comprises plurality of apparatii mounted on the wall or floor adjacent to or embedded inside the LAN jack or a main power outlet. The apparatii are connected at the back side through Ethernet cable, optical fiber or main lines to the building LAN and connected at the front side through cables or wirelessly to display, keyboard, mouse or other peripheral devices. In a typical embodiment of the present invention power to the computing apparatus is supplied through the LAN cable. Another embodiment of the present invention utilizes a wall or floor mounted housing part comprising of an integrated LAN connector. This common housing enables easy installation of the said computing apparatus module and plurality of other compatible devices that may be plugged into that same housing.

The invention discloses an arterial highway and local highway access traffic dispersion system. Sensors are arranged between the outermost lane of an arterial highway and the two sides of an arterial highway access. An arterial highway guide rod device is obliquely buried under the ground of the arterial highway access. A bicycle way a certain distance away from the arterial highway access is provided with a sensor used for detecting pedestrians or vehicles and a bicycle way guide rod device. The bicycle way guide rod device is arranged in front of the sensor. A sensor and a local highway guide rod device are disposed on a right turning lane of the local highway a certain distance away from the arterial highway access. The local highway guide rod device is disposed in front of the sensor. Each guide rod device comprises a guide rod, a lifting column, a box and a drive control device, wherein the guide rod is installed on the lifting column, and the lifting column is driven by the drive control device to move up and down. Normal traffic order of the access can be guaranteed, the occurrence rate of traffic accidents is reduced, and traffic efficiency of main highways is guaranteed.