67results about How to "Scheduling is simple" patented technology

The invention discloses a system and a method for positioning underground personnel in a coal mine. The system comprises a ground monitoring center arranged aboveground, a transmission base state arranged underground, a plurality of gateway nodes, an optical fiber, a bus, a plurality of wireless beacon nodes and a plurality of mobile nodes, wherein the system is intrinsically safe when applied to underground equipment. The method is a positioning method based on mode matching and comprises the steps of: dividing a roadway into different blocks according to a roadway structure and the signal coverage area of the beacon nodes, distributing the beacon nodes in each block according to a same manner, generating a positioning mode database on the ground monitoring center through training the nodes in a training state, sending a positioning mode to the ground monitoring center by the mobile nodes according to the positioning signals of the received beacon nodes in a positioning stage, matching a mode generated by training the nodes in the database to find out a proximate mode, thereby realizing accurate positioning. The system and the method for positioning the underground personnel are high imprecision, low in cost and low in energy consumption, and the system is simple in equipment structure.

The invention relates to a distributed taxi calling system based on an IMS (IP multimedia subsystem) network. The system is characterized by comprising a base station and a server, wherein the base station comprises a calling request user module and a taxi module; the calling request user module comprises a calling request user; the base station is connected with the server through the IMS network; the calling request user module sends the position information thereof to the server according to a request sending mode; the server performs corresponding processing according to the request information of the user; the taxi module comprises a taxi driver; and after receiving a short message, the taxi driver contacts with the user needing taxi in the calling request user module through a response sending mode, and the server stops the message broadcast of the user needing taxi at the same time. The system provided by the invention realizes simple scheduling, adopts the distributed control based on the base station, and reduces the burden of the scheduling server.

The invention relates to a submerged-arc furnace controller with low-pressure reactive compensation and electrode current control. The controller with low-pressure reactive compensation and electrode current control comprises controller hardware and control software, wherein the control software is used for controlling and manipulating the controller hardware; the controller hardware comprises a current transformer (1), a voltage transformer (2), a high-precision three-phase special electric-energy metering chip (3), an ARM (Advanced RISC Machines) microcontroller (4), a power factor control output segregation interface (5), a current control output segregation interface (6), an abnormal event input segregation interface (7), an analog-quantity input interface (8), a keyboard, an LED (Light Emitting Diode) indicating lamp (9), an LCD (Liquid Crystal Display) (10) and a communication interface (11); and the control software refers to the control over all phases of current and all phases of power factors. According to the controller provided by the invention, low-pressure compensation is carried out on a three-phase power supply of a submerged-arc furnace through phase splitting, and electrode current is controlled to run in a balanced way at the value close to the optimum value, so that the purposes of increasing all phases of power factors, saving energy and improving efficiency are achieved.

The invention provides a method for sending single-cast or multicast ARP application message to special target in local area network and a method for using the former method to dispatch on-line computer to access the device in local area network, the devices in the local area network has the same virtual IP address, the method includes: it sets the target MAC address packaged by Ethernet of the application message with MAC address of the known devices, and sends the message. By using the method, it can adjust the access of on-line computer to device in local area network dynamically, thus achieves the aim of adjusting network burden share dynamically.

The invention provides a method for outputting a peripheral through dual core sharing of a Zynq chip in an asymmetric multi-processing mode. An FPGA distributes shared memories with different service priorities to ARM cores, when the ARM cores have to-be-transmitted messages, firstly, information of the shared memories with the FPGA is read, under the judged writable condition, data packages and data package description information are written in the shared memories according to a stipulated format, and under the condition that the FPGA judges peripheral transmitting idling, the data packages in the shared memories are written in the peripheral according to the service priorities. The peripheral and data package scheduling is managed uniformly by the FPGA, no internuclear scheduling is needed between the double ARM cores, each ARM core independently deals with the FPGA peripheral, and efficiency is greatly improved compared with uniform data management and transmitting in an ARM. The method is used for the power system control field with the large data throughout and high processing real-time-performance requirements.

The invention concerns multi-carrier based digital telecommunication systems where the channel is used to transport several data streams according to the frequency division multiple access scheme. The proposed method concerns a mapping of data on physical resource in a transmission system where data of elementary streams is distributed over several physical resource blocks, and within each resource block in order to get data from a plurality of elementary streams on at least one sub-carrier and at least a symbol time of each physical resource block. This allows to achieve a good diversity of the allocation of the different streams, leading to the advantage, among others, that poor transmission conditions affecting a particular sub-carrier or a particular time duration, will not concentrate its effects on a particular stream.

An all optical virtual private network based on quadrature modulation code type in optical fiber communication field includes an optical line terminal, a feeder fiber, a remote node, an arrayed waveguide grating, a profile fiber and an optical network unit. The optical line terminal includes a first circulator, a 2 is multiplied by 1 optical coupler, a fiber bragg grating, and a bidirectional optical amplifier. A first input interface of the 2 is multiplied by 1 optical coupler is connected with the interface of the first circulator. A second input interface of the 2 is multiplied by 1 optical coupler is connected with the fiber bragg grating with a plurality of cascades. An output interface of the 2 is multiplied by 1 optical coupler is connected with an interface of the bidirectional optical amplifier. The other interface of the bidirectional optical amplifier is the output interface of the optical line terminal. The invention realizes simultaneous transmission of the up date and the virtual private network data of each optical network unit, with high communication efficiency and simple dispatch. At the same time, the bidirectional optical amplifier effectively compensates optical power loss and increases user amount.

The invention gives attentions to higher flexibility, simplified dispatch performance, and higher performance of frequency diversity when OFDMA carries of communication. The invention partitions available frequency band into at least two DRCH zones and one LRCH zone. In each OFDM code element, each DRCH possesses sub carriers in at least two DRCH zones. Size of DRCH zone can be configured dynamically. Sub carriers of each LRCH are continuous sub carriers in same LRCH zone. In different frames, each DRCH and LRCH contains invariable number of sub carriers. Moreover, number of sub carriers contained in each DRCH is equal to number of sub carriers contained in each LRCH. Sub carriers associated to DRCH is composed of sub carriers in different DRCH zones distributed in whole frequency plane divergingly.

The invention provides a cloud printing server scheduling method, a device, equipment and a storage medium. The method comprises the steps of receiving a server query request sent by a cloud printer,wherein the server query request comprises an equipment number of the cloud printer; inquiring an address of a cloud printing server corresponding to the cloud printer according to the equipment number; wherein the cloud printing server corresponding to the cloud printer is obtained according to registration information provided by a user during registration and a preset scheduling rule; and sending the address to the cloud printer, so that the cloud printer can establish connection with the cloud printing server according to the address. According to the invention, the distribution of the cloud printing servers can be realized in a personalized manner according to the private deployment requirement of a user or the location of the cloud printer, the possible load pressure on the cloud printing servers during centralized printing is reduced, and the printing response speed is improved.

The invention discloses a method for constructing a moment dispatch list suitable for the SpaceWire network. The method comprises the steps that firstly periodic time-triggered messages are ranked, then the moment dispatch list format is initialized, finally transmission moments of the time-triggered messages are allocated according to transmission moment strategies until the transmission moments of all the time-triggered messages are planed, and the moment dispatch list is obtained through construction. Compared with an event-triggered SpaceWire network dispatching method, the SpaceWire network dispatching method maintains characteristics of simplicity and flexibility of event-triggered dispatching, and guarantees determinacy of data transmission delay through the time-triggered mode.

The embodiment of the invention provides a dictionary update method and system, and a server. The method comprises the following steps: a task manager generates a distribution task by aiming at a dictionary in a memory; a task actuator reads the distribution task; and the task actuator distributes the dictionary to appointed equipment according to the distribution task. The embodiment of the invention is simple in task scheduling so as to improve the reliability and the throughput capacity of the system, improve dictionary update efficiency, lower an operation risk to a large extent and especially greatly improve the update efficiency of the dictionary of a large order of magnitudes, and meanwhile, the embodiment also can be conveniently managed and monitored.

The invention discloses a cell switching method and a cell switching device and relates to data communication technology. In the embodiment of the invention, a fifo (First In First Out) is added at each input port, the cell input to the corresponding input end is cached, the cell cached in each fifo is split into a plurality of data blocks and written into a shared cache, and an output port reads and outputs the cell through different time gaps to finish switching. As the fifo is added to cache the cell, different ports can respectively read and write at different time gaps when ports need to read and write the same cache, thus avoiding confliction and being easy in scheduling.

The invention provides a DNS scheduling method, a DNS scheduling device and DNS scheduling equipment of user terminal gateway equipment, and a medium. The method comprises the steps of comparing a domain name analysis result with a preconfigured in-network IP address field set; and packaging IP addresses, which fall into the in-network P address field set, in the domain name analysis result into the front end of an address list of a replay message, and packaging the IP addresses that do not fall into the in-network IP address field set into the end of the address list of the relay message. According to the method, the device, the equipment and the medium provided by the embodiment of the invention, a DNS caching module is optimized on the user terminal gateway equipment, the problem of a scheduling mistake caused by the fact that a DNS cache cycling function is enabled by default can be solved, the optimal network resources are configured for the user, and the quality of Internet surfing of the user is improved.

A method for transmitting message on packet ring includes setting up source node queue with different priority level on each node of packet ring according to different source node address and priority level , storing on node message from packet ring and message of the node separately to corresponding source node queue according to source node address and priority level of each message , dispatching source node queue in the same priority level to a corresponding priority level output queue separately and transmitting priority level output queue to packet ring according to preset mode .

The invention relates to a tidal bore process simulation device based on frequency control of multiple water pumps. The tidal bore process simulation device based on frequency control of multiple water pumps aims at achieving the purpose that the high energy-storage tidal bore head can be generated, the advancing speed and height of the tidal bore in the transmission process, and thus the tide flooding and ebbing process of the whole tidal can be simulated. According to the technical scheme, the tidal bore process simulation device based on frequency control of the multiple water pumps comprises an upstream water supply pool, an upstream water storage pool, a downstream water supply pool, a downstream water storage pool located under the downstream water supply pool and an experiment water tank, wherein the two ends of the experiment water tank communicate with the upstream water supply pool and the downstream water supply pool correspondingly; and the tidal bore process simulation device further comprises an arc-shaped valve arranged on the upper portion of the upstream water storage pool, multiple water pumps arranged in the upstream water storage pool and the downstream water storage pool, at least two layers of energy dissipation plates arranged between a water flowing passageway arranged between the upstream water supply pool and the upstream water storage pool and at least two layers of energy dissipation plates arranged in a water flowing passageway arranged between the downstream water supply pool and the downstream water storage pool.

The embodiment of the invention provides an ethernet signal scheduling method and device and a system. The ethernet signal scheduling method comprises the steps that first network equipment performs PCSL exchange on M paths of electric signals so as to generate N paths of ethernet signals or N paths of client signals, wherein M>=1, N>=1 and M and N cannot be 1 at the same time; the first network equipment transmits N paths of ethernet signals to at least one set of second network equipment; or the first network equipment transmits N paths of client signals to at least one set of first media access control MAC processing equipment. PCSL exchange is performed on M paths of electric signals to realize signal scheduling and the scheduled signals are transmitted to the corresponding network equipment or MAC processing equipment so that the ethernet signals can be effectively scheduled.

The implementation of the invention discloses a method, device and system for selecting access carrier frequency. The method for selecting access carrier frequency includes the steps of acquiring version information of access terminal and selecting carrier frequency corresponding to the version information of access terminal as the access frequency of the access terminal according to preset correspondence of the version information of terminal and carrier frequency superiority. The system for selecting access carrier frequency comprises a network side device and an access terminal; the network side device is used for acquiring the version information of the access terminal; carrier frequency corresponding to the version information of the access terminal is selected according to preset correspondence of the version information of terminal and carrier frequency superiority; and the access terminal is used for accessing the carrier frequency assigned by the network side device according to an assignment message sent by the network side device. The technical scheme can avoid that terminals in different versions are coexisted in the same access carrier frequency, thus improving throughout of carrier frequency and improving experience of terminal user.

The invention relates to a method for determining a business transmission path, a PCE and an SDN network, and relates to the field of communication. The method comprises the steps: enabling the PCE todetermine a business guarantee path and flow type information corresponding to the business guarantee path, transmitting the business guarantee path and the flow type information to a PCC based on anextended PCEP protocol, and enabling the PCC to carry out the automatic dredging of a business flow based on the business guarantee path and the flow type information. According to the invention, thePCE transmits the business guarantee path and the flow type information corresponding to the business guarantee path to the PCC. An object for transmitting the business guarantee path and the flow type information is defined, so as to achieve the centralized calculation of flow based on a business flow and the flow automatic adjustment, thereby reducing the link of manual intervention. The methodcan achieve the end-to-end path guarantee for a specific business, and can improve the flow scheduling and optimization capability of an operator in a network.

The invention discloses a shared amplitude weighted analog beam forming method applied to millimeter wave communication. The method comprises the following steps of: 1, reducing inter-beam interference by utilizing shared amplitude weighting on the basis of adjusting different beam orientations by utilizing a phase shifter matrix; 2, weighting the adjustable shared amplitude, and performing weightdesign by using an optimization method; and 3, for fixed shared amplitude weighting, performing spatial domain filtering by using a window function, and reducing the sidelobe level further. Accordingto the invention, the cost and the system overhead can be reduced, the beam forming can be realized only depending on the beam direction, and the analog beam forming can support multi-data stream transmission.

The invention relates to a nuclear facility vessel cleaning device, comprising floating platforms (10,40,62) which is provided with floating bodies (12,14,46,48) and can float in water (80), driving devices (26,28) used to move the floating platforms (10,40,62) on the surface of a nuclear facility vessel (78) which is filled with water and is to be cleaned, towing devices (16,54) which are connected with the floating platforms (10,40,62), pumps (20,52,66) which can be vertically hung up and down (22) through the towing devices (16,54), the pumps being provided with suction hose (24,70) which are connected with the pumps on the first tail ends and are used to clean the bottom of the nuclear facility vessel (78), a remote control device (86) used to at least remote control the driving devices (26,28) and the towing devices (16,54), and an optional fixed external storage tank (76). The suction hoses (24,70) optimally at least indirectly access the fixed external storage tank (76) by the second tail ends of the suction hoses.

The invention discloses user equipment and a detection method and a device for a physical downlink control channel of the user equipment. The method comprises the following steps: determining configuration of an aggregation level combination or a PDCCH candidate combination; determining the aggregation level combination or the PDCCH candidate combination according to the configuration of the aggregation level combination or the PDCCH candidate combination, and taking the aggregation level or the PDCCH candidate in the aggregation level combination or the PDCCH candidate combination as a memberaggregation level or a member PDCCH candidate; and performing blind detection on the PDCCH candidate corresponding to the aggregation level combination or the PDCCH candidate combination according tothe configuration of the aggregation level combination or the PDCCH candidate combination. According to the invention, on one hand, the robustness of the PDCCH is improved, and on the other hand, toolarge continuous resources corresponding to the PDCCH with a certain high aggregation level do not occur, so that the conflict between the improvement of the robustness of the PDCCH and the avoidanceof the blockage of PDCCH resources allocated by the network is eliminated, and the two aspects can be well considered.