74results about How to "Reduce delivery delay" patented technology

The invention discloses a low dropout regulator, which comprises an error amplifier, a buffer circuit, a P-channel metal oxide semiconductor (PMOS) regulation transistor, an N-channel metal oxide semiconductor (NMOS) push-pull tube, a voltage division feedback circuit, a compensation circuit and an output circuit, wherein the gate of the PMOS regulation transistor is connected with the output end of the buffer circuit, the source of the PMOS regulation transistor is connected with power voltage, and the drain of the PMOS regulation transistor is used as the output end of the low dropout regulator; the gate of the NMOS push-pull tube is connected with the output end of the error amplifier, the drain of the NMOS push-pull tube is connected with the drain of the PMOS regulation transistor, and the source of the NMOS push-pull tube is grounded; and the error amplifier, the compensation circuit, the buffer circuit, the PMOS regulation transistor, the voltage division feedback circuit and an output circuit form a main control loop, and the error amplifier, the compensation circuit, the NMOS push-pull tube, the voltage division feedback circuit and the output circuit form an auxiliary control loop. According to the low dropout regulator, the transient response of the regulator can be quickened, and the accuracy of output voltage can be improved.

The invention discloses an information forwarding method in a resource-constrained opportunity network based on node excitation, aiming at solving the problems of node blind cooperation and the like of the existing node excitation which fails to take occupation and energy consumption of node cache in the network into consideration. According to the information forwarding method disclosed by the invention, a pricing foundation is set by taking idle cache space, rest energy and owned monetary value on the node as well as size and rest survival time of the message into comprehensive consideration. Hereby, the node, as a rational entity, is scientifically described, and with variation of an environment attribution and variation of cooperative willingness, and depending on an instinct of seeking for owned benefit maximization of the node, rational excitation node cooperation is achieved. Furthermore, when the rest energy of the node is rare, the network service life of the node can be prolonged; and when the idle cache space of the node is comparatively small, the method is favorable for relieving the network jamming, so that the energy consumption can be effectively reduced, and the network average transmission delay and delivery rate can be improved.

The invention discloses an opportunity network routing method based on a social utility degree mechanism, relating to the technical field of network routing and proposing an opportunity network routing method based on social utility degree for the social performance of node movement in the network. During the encounter time interval utility copy phase, a source node copies the message to the bestcandidate node according to the utility of its encounter history information with the candidate node. During the time-to-live replication phase, the node copies the message to the candidate node basedon the remaining lifetime of the message. During the social ranking replication phase, nodes are replicated based on utility rankings. The scheme considers the encounter time interval utility betweennodes, and selects nodes with better delivery potential to forward messages, thereby improving the delivery performance of the route. In addition, according to the social ranking utility of the node,the number of copies of the messages is dynamically allocated, so that the node with high utility assumes more forwarding tasks, thereby balancing network overhead.

The invention relates to the technical field of mobile communication, in particular technology for sending push messages in multimedia message service. The invention discloses a method, a device and a system for sending the push messages in the multimedia message service to solve the problem of an alternate route when the push messages are transmitted and shorten the transmission time delay of multimedia messages. The method comprises the following steps: acquiring an HLR IP address to which a receiver terminal belongs after a receiver home location MMSC receives the multimedia messages which are sent to the receiver terminal; acquiring a receiver visitor location MSC information from a corresponding HLR according to the HLR IP address; and transmitting the push messages to the receiver terminal through a corresponding MSC according to the receiver visitor location MSC information. The invention simultaneously discloses an address inquiring method and an address inquiring device.

The invention discloses a method, device and system for updating scheduling information, wherein the method includes: receiving service data after service establishment, and acquiring a service type; generating scheduling update information according to the service type; sending the scheduling update information through a set control frame , the scheduling update information is used to instruct the corresponding receiving end to schedule service data according to the scheduling update information. The invention can improve the reliability and safety of dispatching, realize the update of dispatching parameter information in quick response, reduce the transmission time delay and update efficiency, and solve the technical problems of call drop risk and low update efficiency in the prior art.

The invention provides a 3G user quick roaming authentication method based on a wireless local area network, belonging to the field of wireless communication. The method comprises the steps as follows: a user entity and a new access network establish a connection; the new access network gains the identity authentication information; subsequently, the old access network verifies the new access network and the identity of the user entity; finally, the new access network authenticates the user entity. The invention provides a quick roaming authentication method aiming at a 3G-WLAN Internet, leads the 3G mobile users to be quicker and safer to shift the roaming in access networks, and realizes the bidirectional authentication between the user entity and the 3G wireless access network at the same time; therefore the Re-direction attack behavior is withstood by the entity verification to the access network,; furthermore, the method effectively reduces the transmission delay of the message during the authentication process, improves the safety and efficiency of the access process of the 3G and heterogeneous internetworking network, and facilitates the mobile users to share smoother mobile services.

The invention discloses a printed circuit board and a manufacturing method thereof. The printed circuit board manufacturing method comprises the following steps: stacked structure design is carried out; impedance design is carried out; cutting and optimized impedance design are carried out; an inner-layer line is manufactured; and a printed circuit board with a multilayer board structure is formed through postprocessing. According to the printed circuit board and the manufacturing method thereof, through monitoring and adjusting factors which influence the impedance value during the cutting and inner-layer line manufacturing production process, the problem that the inner-layer impedance is hard to control caused by each factor during the production process of the printed circuit board can be solved, the inner-layer impedance of the printed circuit board is stably controlled to meet high precision requirements, the high-speed signal transmission performance of the printed circuit board is improved, the impedance qualification rate of the printed circuit board can be further improved, the impedance rejection rate is reduced, the production cost is reduced, and the problem of delivery time delay caused by poor impedance is reduced.

The invention provides a sensor system. In the sensor system including a plurality of photoelectric sensor units, a light projecting period suitably determined for each type is provided and mutual interference is prevented between sensor units of the same type. The sensor system includes the plurality of sensor units that are coupled in such a manner that signal transmission among the sensor units is possible. Each of the sensor units retains type information indicating a sensor type of the respective sensor unit, and sets a unique identification number of the respective sensor unit by signal transmission among the sensor units. Each of the sensor units operates after a delay time determined according to the identification number of the respective sensor unit elapses with a synchronization signal as a starting point. The synchronization signal is transmitted with a predetermined period from one of the plurality of sensor units that has a specific identification number. The delay time of each of the sensor units is determined such that an operating period of the respective sensor unit matches with a predetermined period, which is determined individually for each sensor type, and such that the delay time differs from the delay time of any other sensor unit having the same sensor type.

The invention provides a method, a device and a system for transmitting data. The method includes adjusting a lower limit value of an original receiving window by the aid of the size of a preset reordering window to obtain a lower limit value of a current receiving window; comparing the lower limit value of the current receiving window to the lower limit value of the original receiving window, and updating the lower limit value of the original receiving window as a breakpoint value if the lower limit value of the current receiving window is larger than the lower limit value of the original receiving window; transmitting a data packet with a packet sequence number smaller than the breakpoint value to a receiving layer. The lower limit value of the original receiving window is a packet sequence number of a next data packet which is expected to be received by the receiving end. The breakpoint value is a packet sequence number of a first data packet which is not received, and the packet sequence number is not smaller than the lower limit value of the current receiving window. The method, the device and the system in an embodiment of the invention have the advantages that the purpose of shortening the data packet submission delay can be achieved, and jittering of the data packets in transmission procedures further can be reduced.

The invention discloses a method for improving the delivery accuracy of IP short messages. The method comprises: the HSS receives the T-ADS information query request sent by the IP-SM-GW; , judging the domain selection information according to the registration timestamp of the terminal in the MME and SGSN; the HSS returns the domain selection information to the IP-SM-GW. The invention also discloses a device and a system for realizing the method.

The invention discloses a lightweight message middleware system of a virtual test range verification system. The lightweight message middleware system comprises a middleware message forwarding module,a middleware model service module, a middleware time synchronization service module and an object model transceiving module, the middleware system solves the problems that existing virtual test rangetest equipment is difficult to interact, slow in information transmission, low in message concurrency and the like. The invention further provides a virtual test range system communication method based on the message-oriented middleware system. The method specifically comprises the following steps: S1, creating an object model component which can be stored and called by middleware; S2, uploadingthe middleware object model component of the virtual test target range system to a middleware storage server; S3, performing permission and other information binding on the object model component; S4,activating the object model component before the middleware of the virtual test target range system starts; S5, synchronizing the time when the equipment needs to be interoperable; and S6, performinginformation interaction of the virtual device.

The invention discloses a warehouse-out distribution method for e-commerce intelligent warehousing. The method comprises the following steps: obtaining a to-be-processed order, and obtaining a first warehouse which is to be delivered to a to-be-delivered receiving address of the to-be-processed order as soon as possible; judging whether the delivery pressure of the first warehouse, the logistics pressure and the inventory number of the corresponding to-be-processed orders are smaller than corresponding preset threshold values or not; if yes, sending the to-be-processed order to the first warehouse for delivery; if not, obtaining other warehouses which can be delivered to the to-be-delivered receiving address within the preset time efficiency of the e-commerce, and taking the other warehouses and the first warehouse as alternative warehouses; performing weighting calculation on all the alternative warehouses according to the delivery pressure, the logistics pressure and the stock quantity of the corresponding to-be-processed orders according to the proportional relation with corresponding preset threshold values, and obtaining final scores of all the alternative warehouses; and sending the to-be-processed order to the alternative warehouse with the highest final score for warehouse-out delivery. According to the method, the phenomenon of delivery extension can be reduced.

The invention provides a genetic algorithm workshop production scheduling method based on a virtual process, and the method comprises the following steps: reading a production scheduling task, extracting production scheduling data in a production scheduling order, and carrying out the standardization processing of the production scheduling data; converting the standardized production scheduling data into virtual process production scheduling data according to a virtual process representation rule; processing the virtual process scheduling data by using a genetic algorithm added with an immigrant strategy and an optimal storage strategy, and decoding an optimal individual output by the genetic algorithm to obtain an optimal workshop scheduling result; and visually displaying the output optimal workshop production scheduling result on a user interface. According to the virtual procedure processing, the solving difficulty of the genetic algorithm in solving the complex production scheduling problem is greatly simplified, and the algorithm solving speed is increased. The scheduling problem is modeled and solved by using the genetic algorithm, the order delivery delay is reduced, the product turnover rate is improved, and the defect of manual scheduling is overcome; and the global convergence of the algorithm is ensured through the optimal storage strategy and the immigrant strategy.

The embodiment of the application discloses an information processing method and device. A specific embodiment of the method includes: acquiring order information of a to-be-processed order with a preset mark; utilizing a preset order allocation manner to determine a candidate delivery client of an article involved in the order information of the to-be-processed order; determining completion timeof a whole delivery course of the to-be-processed order and / or completion time of a designated delivery phase on the basis of the order information of the to-be-processed order and order information of allocated orders of the candidate delivery client; and in response to determining that the completion time is not in a delivery time limit range indicated by the preset mark, sending a delivery instruction to an article providing client involved in the order information of the to-be-processed order. According to the embodiment of the application, an effect that delivering of the order can be ontime is ensured to a certain extent, and probability of delivery delay is reduced.

The invention belongs to the field of wireless sensor networks, in particular to a wireless sensor network distributed clustering and sleep scheduling method specific to target detection. The invention aims to decide the sleep mechanism of a network node according to the clustering structure of a network specific to the application of the target detection in order to realize low end-to-end delivery delay. The method mainly comprises partition of the clustering structure, sleep scheduling of nodes and the like. Through adoption of the method, the problem of great increase in the end-to-end delivery delay caused by network sleep scheduling is solved, and a low-delay and low-energy-consumption sleep scheduling mechanism is realized.

The invention discloses a space delay tolerant network congestion control method based on QoS. The method comprises the following steps: S1, adding contact congestion level information with a remaining node storage space and a contact remaining available capacity as judgment reference in a contact information format; S2, judging the contact congestion level according to the contact remaining available capacity and the remaining node storage space, and sending a congestion information notification to other nodes; S3, updating the contact congestion level in a contact plan by a node receiving the congestion information notification, calculating an optimal path congestion level by a node requiring a forwarding beam, and forwarding the beams of all priorities in the case of no congestion; forwarding the beams with high priorities and middle priorities in the case of slight congestion; forwarding the beams with high priorities in the case of serious congestion; and in the case of complete congestion, if the judgment reference is the contact remaining available capacity, forwarding the beams with high priorities, and if the judgment reference is the remaining node storage space, forwarding the beams via a secondary optimal path. By adopting the space delay tolerant network congestion control method disclosed by the invention, in the case of network congestion, the data transmission rate is improved, and the transmission delay is shortened.

The invention relates to a potential switcher, which comprises a negater which is connected on a first voltage source, wherein the negater can be operated between a first electropositive potential and electronegative potential, and the input end of the negater is connected to the signal input end, a first PMOS transistor whose source cathode is connected with a second voltage source and grid electrode is connected with the controlling end, a first NMOS transistor whose drain electrode is connected with the drain electrode of the first PMOS and is used as signal output end, grid electrode is connected with the output end of the negater, and source cathode is connected with the reference potential, and a controlling circuit which is connected with the signal input end, the output end of the negater and the second voltage source, and the controlling end of the controlling circuit can open the first PMOS transistor, the signal output end is led to output the second electropositive potential, and the controlling end closes the first PMOS transistor, the signal output end is led to output the electronegative potential. The potential switcher of the invention has the advantages of low potential switcher and low transmission delay.

According to the present invention, vehicle drive devices (1, 2) have: an output shaft (14) connected to an engine (10) started up by a starter (12); an input shaft (22) connected to a vehicle wheel (90); an electric motor (30) for generating rotational torque of the vehicle wheel (90); and a hydraulic clutch (20) for connecting the input shaft (22) and the output shaft (14) when in an engaged state and disconnecting the output shaft (14) from the input shaft (22) when in a disengaged state. The hydraulic clutch (20) is a normally open type of clutch that forms the engaged state by being supplied with oil. A device (70) for controlling the vehicle drive devices (1, 2) begins to supply oil to the hydraulic clutch (20) before the rotating speed of the engine (10) reaches the rotating speed of the input shaft (22) when the startup of the engine (10) is initiated by the starter (12) while the hydraulic clutch (20) is in the disengaged state and the engine (10) has stopped, and while either the input shaft (22) is being rotated by the electric motor (30) or the input shaft (22) is being rotated by inertia travel.

The invention discloses a flow-control information transfer method and device. The method comprises the following steps: reading a flow-control point identification in a preset flow-control point identification library, wherein flow-control point identifications are stored in the flow-control point identification library in the mode of first in the first out (FIFO) and each flow-control point identification in the flow-control point identification library has uniqueness; and searching a flow-control state table which stores flow-control states in one-to-one correspondence with the flow-control point identifications in the flow-control point identification library, reading the corresponding flow-control state of the read flow-control point identification; and generating flow-control information to transmit according to the read flow-control point identification and flow-control state. The invention can realize the predictability of flow-control information storage resources, thus avoiding the problem that the flow-control information of the same flow-control point is stored many times and occupies lots of resources and then reducing the transfer delay of flow-control information.

The invention requests to protect a route method based on crossroads in an opportunistic vehicular ad hoc network. In an urban environment, vehicular ad hoc network nodes move at high speeds, and a topological structure changes frequently. Aimed at the problems that an existing router algorithm has many limits, uniform distribution of nodes in the network is neglected, and a selected router is not the optimum router because both history information and network global information are considered, the invention provides the router method based on the crossroads. When a source node has a data sending request and no router reaches a target node, a plurality of routes from the source node to the target node are firstly searched for and established, then factors influencing performance of road segments and crossroads are respectively considered, the performance of the road segments and the crossroads are comprehensively considered, the performance of each router is analyzed, and under the condition that the global information is considered, the optimum router is selected from the plurality of routes for data transmission, so that the network delivery rate is effectively improved, and the average transmission time delay is lowered.

The invention discloses a processing method, apparatus and system for a third party charging service. The method comprises: a service processing network element obtaining identification information of a third party charging terminal, the identification information being stored in a service terminal; and sending the identification information to a charging network element, the charging network element deducting call ticket cost generated by the service terminal from the account of the third party charging terminal according to the identification information. By using the method, apparatus and system provided by the invention, the load of a charging network element can be quite well reduced, and the accuracy in processing a third party charging service is improved.

The invention discloses an e-commerce logistics transfer optimization method and system under the background of a network freight platform. The method comprises the steps of taking a third-party logistics provider which is responsible for storage and carries out the transportation through the centralized transportation capacity of the network freight platform as a core, and combining the upstream and downstream input and output of the third-party logistics provider to cooperate with the inventory transfer of a supply chain, so as to optimize the e-commerce logistics. The overall warehouse operation cost and the inventory turnover time can be integrally reduced, the inventory transfer efficiency is improved, the distribution delay rate is reduced, the distribution service quality is obviously improved, and the customer satisfaction degree is improved.

The invention discloses a network message high-speed processing system and method and relates to the field of network security. A multi-core group framework of a Feiteng processor is utilized, parallel running of functional core groups and a multi-core assembly line way in the functional core groups are adopted, and network message are efficiently processed in parallel; multiple core groups parallel network data packets, the core groups can be beneficially flexible according to network flow, multi-core utilization efficiency is improved, software development is also relatively simple, and smooth migration to the next generation processor platform is facilitated; the network data packets are processed and transferred in an assembly line way by multiple cores in each core group, each core task in an assembly line is single and clear, cache hit ratio is obviously improved, network throughput is improved, and network message processing speed is improved. The network message high-speed processing system and method are applied to network security equipment, so that application field of domestic processors is expanded, domestication level of the network security equipment is improved, andsignificance is produced in the aspect of autonomous controllability of information security.

The invention discloses a delay tolerant and disruption tolerant network (DTN) opportunity prediction routing method based on a timetable. On the base of the research on the routing mechanism of the existing delay tolerant and disruption tolerant network, an aggregated-unfolded mobile terminal, an opportunity prediction DTN routing algorithm based on a timetable and a cache management strategy are designed in view of the characteristics of special battlefield environments and mobile motorcades, physical positions of nodes and a meeting probability of the nodes can be predicted according to the moving timetables of the mobile nodes, then an optimized information forwarding decision is made, so that smooth network communication can be kept on the condition of high delay and frequent link interruption in the battlefield environments, the information transmission reliability and the data throughput are improved, and the delivery delay is shortened, therefore the survivability of a DTN communication network in the battlefield environments is enhanced.

A base station, a relay station and a backhaul control communication thereof are provided. A wireless communication system comprises the relay station, a base station, and a core network. The relay station is wirelessly connected to the base station, while the base station is wiredly connected to the core network. The relay station comprises a processing unit and a transceiver. The processing unit is configured to create a radio link having a control plane connection between the relay station and the base station and create a backhaul link between the relay station and the base station by the control plane connection of the radio link. The transceiver is configured to transmit a backhaul control message to the core network via the backhaul link.

The invention provides a method and a system for quickly replenishing goods in a driver goods checking process. The method applied to a server side comprises the following steps: acquiring a goods replenishing request uploaded by a client carried by a driver; the inventory quantity is verified, if the inventory quantity is not smaller than the abnormal quantity of the replenishment requests, the processing end is notified to sort or process the goods. Meanwhile, the goods number is sent to the processing end, and the processing end associates the goods location number with the sorted or processed goods; and sending the serial number of the replenishment area where the sorted or processed goods are located to the client, and notifying the client to go to the corresponding replenishment areato take the goods. According to the method, upstream and downstream quick cooperation and orderly production are facilitated, manual intervention and cost are reduced, the ex-warehouse late-point rate of drivers is reduced, and the customer satisfaction is improved.

The invention discloses an intelligent elevator model selection system based on a BIM model. The system comprises a building three-dimensional visualization module, an elevator three-dimensional visualization module, a data processing module and a model selection output module, and the building three-dimensional visualization module is used for generating a BIM model of a building or a structure according to a design drawing of the building or the structure to be installed of a selected elevator; the elevator three-dimensional visualization module is used for generating a three-dimensional visualization model of the elevator according to the selected design drawing of the elevator; the data processing module is used for carrying out matching processing on the BIM model of the building or the structure and the selected elevator three-dimensional visualization model, judging whether the selected elevator is installed on the building or the structure to meet the regulations of technical laws and regulations and standards or not, and obtaining a model selection conclusion; and the model selection output module is used for outputting a model selection conclusion. The system can visuallyverify the adaptability of the specification and model of the selected elevator to the building, and reduces the delivery delay caused by elevator engineering and the economic loss caused by rectification.

The invention relates to a resource packet downloading method, device and system. The method comprises the following steps: establishing point-to-point connection with a second terminal; downloading the plurality of resource packet fragments from the second terminal according to the sequence of the fragment serial numbers carried by the resource packet fragments, and determining a serial number queue according to the fragment serial numbers of the plurality of resource packet fragments; uploading the queue head serial number and the queue tail serial number to a server; after point-to-point connection with an available third terminal is established, downloading a resource packet fragment corresponding to the continuous transmission sequence number from the available third terminal. According to the scheme provided by the invention, the time required for downloading the resource packet fragments by the terminal can be shortened, and the application updating efficiency is improved.

The invention discloses an information forwarding method in a resource-constrained opportunity network based on node excitation, aiming at solving the problems of node blind cooperation and the like of the existing node excitation which fails to take occupation and energy consumption of node cache in the network into consideration. According to the information forwarding method disclosed by the invention, a pricing foundation is set by taking idle cache space, rest energy and owned monetary value on the node as well as size and rest survival time of the message into comprehensive consideration. Hereby, the node, as a rational entity, is scientifically described, and with variation of an environment attribution and variation of cooperative willingness, and depending on an instinct of seeking for owned benefit maximization of the node, rational excitation node cooperation is achieved. Furthermore, when the rest energy of the node is rare, the network service life of the node can be prolonged; and when the idle cache space of the node is comparatively small, the method is favorable for relieving the network jamming, so that the energy consumption can be effectively reduced, and the network average transmission delay and delivery rate can be improved.

The invention discloses a low dropout regulator, which comprises an error amplifier, a buffer circuit, a P-channel metal oxide semiconductor (PMOS) regulation transistor, an N-channel metal oxide semiconductor (NMOS) push-pull tube, a voltage division feedback circuit, a compensation circuit and an output circuit, wherein the gate of the PMOS regulation transistor is connected with the output end of the buffer circuit, the source of the PMOS regulation transistor is connected with power voltage, and the drain of the PMOS regulation transistor is used as the output end of the low dropout regulator; the gate of the NMOS push-pull tube is connected with the output end of the error amplifier, the drain of the NMOS push-pull tube is connected with the drain of the PMOS regulation transistor, and the source of the NMOS push-pull tube is grounded; and the error amplifier, the compensation circuit, the buffer circuit, the PMOS regulation transistor, the voltage division feedback circuit and an output circuit form a main control loop, and the error amplifier, the compensation circuit, the NMOS push-pull tube, the voltage division feedback circuit and the output circuit form an auxiliary control loop. According to the low dropout regulator, the transient response of the regulator can be quickened, and the accuracy of output voltage can be improved.