38results about How to "Realize seamless access" patented technology

The invention discloses an intelligent SMS (short message service) platform system and an SMS (short message service) implementation method based on the system, wherein the method comprises a plurality of intelligent short message sub-services such as SMS diversion, SMS return receipt, SMS storage, SMS signature, and SMS automated response, etc. The system and the method disclosed in the invention have the advantages that based on standard protocols, an unified external interface is realized, therefore, the seamless accesses of SMGW, SMSC, MSPGW interfaces, etc. can be realized; meanwhile, the system and the method disclosed in the invention meet the general technical specifications of intelligent SMS as well as the function requirements of an office party for future mobile application.

The invention discloses an instant messaging communication method based on a Websocket protocol. The instant messaging communication method based on the Websocket protocol comprises the following steps: adding the Websocket protocol and a message queue service HornetQ between a network communication layer and a business logic layer to start message transmission, using network based on an open source to process a webbit frame of a netty frame and to provide a basic service of the websocket protocol, after the success of a websocket handshaking protocol, a client side is linked with a service establishing network, sending authentication logging information, after successfully authenticating, a service end starts the message queue service HornetQ, and adding logging users of the client side to a waiting for conversation queue to wait for activation of the messages. After receiving the activated messages, the messages are returned to the client side through the websocket protocol.

The invention relates to a protection method of a power distribution network for a coal mine. The protection method comprises the following steps of: if any section in the power distribution network is subjected to short circuit, respectively tripping the main protection detection fault outlet of a superior switch closest to a fault section, if failure current still exists after the inherent action time of a main protection tripping fault switch, showing that the fault switch refuses operating; and then tripping the intelligent backup protection direct outlet of a superior switch adjacent to the fault switch, and removing the fault. The method has the following beneficial effects: the current conditions of circuits in all levels are judged, thereby ensuring that backup protection of the superior protection drives tripping without time delay when a switch cabinet in each level refuses operating, effectively shortening the protective fault removal time of the superior switch when the fault switch refuses operating, being conductive to removing the fault rapidly, and being conductive to the safety of the whole power distribution network.

The invention discloses a sensor network based mobile construction truck intelligent monitoring device which comprises a construction truck mobile monitoring device and a construction site information chip. Information interaction between active chips arranged at a gate of a construction site and an exit and entrance of a car wash and an identity identifier mounted in a truck is performed to collect identity information of vehicles coming in and going out and information of whether vehicles are washed or not. By using the sensor network based mobile construction truck intelligent monitoring device, problems of the prior art are solved, data inquiry of illegal behaviors such as overloading, overspeeding, driving without cleaning, illegal toppling of construction trucks can be effectively realized, and administrative law enforcement linkage can be performed by timely pushing to related responsible authorities, so that law enforcement efficiency of grassroots monitoring is improved, and grassroots meshing and refined management capabilities are enhanced.

According to the centralized monitoring platform of the spacecraft ground measurement and control station resource pool architecture disclosed by the invention, the resource utilization rate of the satellite ground measurement and control station can be effectively improved. The invention is realized through the following technical scheme: monitoring software constructs resource pools for digitalization, signal processing, baseband processing and storage functions respectively, establishes a binding relationship of process services, takes a result of resource scheduling and resource allocation as input, and schedules customer services based on task-driven dynamic resources; after the business service module carries out coarse-grained division on services, all the services are organized in different servers through a service management deployment tool, all the service particles communicate through defined interfaces, and the centralized monitoring platform defines a resource scheduling strategy in a unified mode based on a resource recombination strategy preset in a station, so that measurement and control tasks and equipment resources are distributed, and a flow operation closed loop and an exception handling closed loop of full services from task preparation to task execution to task end are completed.

The present invention relates to a three-dimensional fiber Bragg grating wind speed and direction sensor and system. The sensor comprises a base and three groups of sensing devices mounted on the base. The three groups of sensing devices are arranged on the three surfaces of the base according to a space rectangular coordinate system. The system includes a three-dimensional fiber Bragg grating wind speed and direction sensor, a fiber coupler, a wavelength demodulation device, a broadband light source and a module operation device, the three-dimensional fiber Bragg grating wind speed and direction sensor is connected with the fiber coupler through an optical fiber, the fiber coupler is connected to the broadband light source and the wavelength demodulation device, and the wavelength demodulation device and the module operation device are connected. The invention adopts a non-rotating structure and an independent temperature compensating grating. The sensor has the advantages of small volume, simple structure, high measuring precision and good stability. In addition, the sensor can measure the wind speed and the wind direction at the same time, and a plurality of sensors are arranged to form a measuring network, to achieve multi-point measurement. In addition, the sensor achieves seamless access with equipment based on fiber grating technology.

The invention discloses an override trip protection system and method for a coal mine power network. The override trip protection system comprise a ground power substation, a center power substation, a mining area power substation and switches, and is characterized in that a first switch and a second switch are cascaded between the ground power substation and the center power substation, a third switch and a fourth switch are cascaded between the center power substation and the mining area power substation, and the switches are respectively connected with a longitudinal differential protector.

The invention provides an SNMP-based transmission network unified network management system, belongs to the technical field of power communication network management, and specifically relates to an SNMP-based transmission network unified network management system. The invention provides an SNMP-based transmission network unified network management method to well shield underlying transmission protocol differences. The method includes following steps: step 1, a management station sends a control data packet, employing an SNMP management protocol, and performs transmission through a non-connection-oriented UDP; step 2, a request queue receives the control data packet from the management station; step 3, protocol analysis is conducted on the received data packet, and a communication protocol stack, a management information model and a network management protocol type are obtained and stored in an information base; and step 4, a sub-agent module is delegated to collect and analyze information of managed equipment, the information is stored in a data processing module, and the protocol type of the managed equipment is recorded in the processing module of the management information model.

The invention relates to a novel intelligent multi-energy multi-mode uninterruptible power supply. The uninterruptible power supply is characterized by being composed of an input and output signal detecting module, an input switching device, an output control device, a high-power rectifying module, an intelligent charging module, a maintenance-free battery, an inverter module, an isolating filtration module, new energy power generation modules (the intelligent wind power module and the intelligent solar power module), an auxiliary work power supply module and a system center control module. The uninterruptible power supply has the advantages that an intelligent energy switching scheme is provided, all kinds of energy is optimally distributed, the priority of clean energy is the highest, the battery and the mains supply are secondary, and the economy and the environmental protection property of actual operation of a system are improved. The intelligent uninterruptible power supply with energy optimization as the target can work on various occasions and various loads. A bus control technology is adopted among all the modules in the uninterruptible power supply, the stability is high, and expansion is convenient. The uninterruptible power supply can be applied to single-phase power supply and three-phase power supply, the full-digital intellectualized design is adopted, and manual maintenance is greatly reduced.

The invention relates to an automatic control system accessed to an automatic isomerous controller. The automatic control system is characterized by comprising an isomerous controller terminal and a central control room, wherein the isomerous controller terminal is provided with a client driver based on an OPC agreement, a communication channel is arranged between the isomerous controller terminal and the central control room, the isomerous controller terminal is provided with an interface which is connected with the communication channel, the data communication of the isomerous controller terminal and the central control room is carried out as an Modbus agreement which is Modbus agreement expansion, and 16 bit device addresses are arranged in the Modbus agreement. The system solves the problem of insufficient quantity of the device addresses in the same Modbus communication network and realizes that isomerous controllers supplied by different manufacturers carry out data communication with the central control room by the same communication channel. The invention also relates to the application of the automatic control system in oilfield automation.

The invention discloses a ground base station, and a resource allocation method and a communication system based on a satellite cluster. The method comprises the following steps: for a user terminal in which services are allocated to a satellite in the satellite cluster, performing sub-group division on the user terminal according to a channel quality indicator CQI value; allocating a modulation code mechanism MCS service of a corresponding level to each sub-group according to the CQI value of each sub-group user terminal; calculating a resource allocation weight of the MCS service of each level according to the minimum data rate of the allocated MCS service of each level; and respectively calculating the number of resource blocks RB allocated to each sub-group according to the resource allocation weight of the MCS service allocated to each sub-group. By application of the resource allocation method disclosed by the invention, the wireless resource management is simple, relatively highQoS can be ensured, and the resource allocation fairness is satisfied.

The invention designs and realizes a modular cross-platform SDK which supports IGRS and UPnP protocols, has strong expandability and configurability and is easy to multiplex by studying the standards of the IGRS and UPnP protocols, analyzing the generality of digital media adapter (DMA) products and combining the current shared design scheme of digital home media. Based on the SDK, the application developers can effectively multiplex related modules provided by DMA-SDK and concentrate on interface development and development of related modules meeting special requirements, thus improving the development efficiency of DMA application and production speed.

The invention relates to equipment based on a VPN technology and a method and system for remotely maintaining a PLC. The equipment based on the VPN technology has the characteristic of rapid deployment, is of a plug-and-play type, and can realize remote maintenance of the PLC only by informing technicians of equipment ID numbers and IP addresses of the PLC by field personnel and matching the technicians with remote client software. The equipment does not need to be configured, and if a field local area network does not have the capability of accessing the Ethernet, the equipment can access anoperator network and is connected with a VPN server to establish a virtual tunnel. According to the invention, seamless access can be realized efficiently and quickly without changing the original network environment; automatic connection can be achieved without complex configuration, the technical requirements for field personnel can be reduced, and simplicity and convenience are achieved; through the scheme, technicians can quickly troubleshoot problems, so that user requirements are met, and the problem of pain spots of users is solved.

The invention provides a fieldbus DP-NET with an open two-stage topological structure. The open two-stage bus topological structure consisting of a DP-NET main line and expanded field bus branches realizes time certainty transmission of data of the DP-NET bus and also meets the requirements on seamless access and data intercommunication of a heterogeneous fieldbus system to fulfill the aim of theinvention. Actual application and operation check in a plurality of big power stations at home prove that the DP-NET fieldbus system has high technical performance such as time certainty and reliability of field data transmission, and has high flexibility and adaptability in the aspect of accessing and intercommunicating with the heterogeneous fieldbus equipment.

The invention provides an access method and device for a unified label library, and belongs to the technical field of big data, and the access method comprises the steps: generating unified label directory metadata and unified label definition metadata in a unified label directory tree according to a label file of at least one system; associating the service data corresponding to the unified labeldefinition metadata with the unified label definition metadata to obtain unified label service data in the unified label directory tree; generating a unified label directory tree according to the unified label directory metadata, the unified label definition metadata and the unified label service data, the unified label directory tree comprising sub-trees corresponding to each system; and establishing a unified label library containing the unified label directory tree. Label unification can be realized, real-time analysis of Internet access behavior data of a user is realized, and business and product marketing efficiency and accuracy are improved.

The invention discloses a network access control method, device and core equipment. The network access control method includes the steps that the core equipment obtains an information message of a user terminal; virtual local area network identification in the information message is compared with virtual local area network identification corresponding to user terminal identification in a preset user authentication table entry, and the corresponding relation between the user terminal identification and virtual local area network identification of an access network is saved in the user authentication table entry; when the virtual local area network identification in the information message is different from the virtual local area network identification corresponding to the user terminal identification in the preset user authentication table entry, the virtual local area network identification in the information message is used for replacing the virtual local area network identification corresponding to the user terminal identification in the preset user authentication table entry, and the user terminal is allowed to get access to the network. By the adoption of the scheme, loads of an authentication server are reduced, the system performance of the authentication server is improved, and therefore the user terminal can get access to the network in a seamless mode when a place is changed.

The invention discloses a generation method for simulating measuring information of a magnetic compass based on attitude information, and a magnetometer simulator. The method includes steps: measuring longitude and latitude positioning information and attitude information (yawing, pitching, and rolling) of an unmanned aerial vehicle in real time by employing a single-board multi-antenna attitude determination receiver; determining a current geomagnetic field vector (in a geographic coordinate system) according to a longitude and latitude positioning result and a geomagnetic field model; determining an attitude matrix according to the attitude information of yawing, pitching and rolling; converting the geomagnetic vector in the geographic coordinate system to the geomagnetic vector in a body coordinate system through the attitude matrix to obtain a virtually generated magnetic compass three-axis measuring result; and outputting the result to a flight control module for calculation of the magnetic course and the true north course. The method and the magnetometer simulator are advantageous in that the principle is simple, the realization and the promotion are easy, the real magnetic compass can be rapidly and accurately replaced, the magnetic interference is avoided after replacement, and the process of elliptical calibration of the magnetic compass is avoided.

The invention discloses a distributed fault diagnosis system and method for a power transmission line. The distributed fault diagnosis system comprises a monitoring terminal, a front server and a central station server. The central station server comprises a communication micro-service unit, a core micro-service unit and a fault distance measurement micro-service unit; the front server receives the data message sent by the monitoring terminal and stores the data message in a database; the communication micro-service unit reads the data message from the database and forms a file; the core micro-service unit receives an interaction message sent by the communication micro-service unit, finds out a corresponding fault distance measurement micro-service unit based on ID information in the interaction message, and sends a file obtained from the communication micro-service unit to the fault distance measurement micro-service unit; and the fault distance measurement micro-service unit completes fault diagnosis based on the received file. According to the invention, the system access time of fault distance measurement terminals (namely fault distance measurement micro-service units) of different manufacturers can be greatly shortened, and the operation and maintenance efficiency is improved.

The invention provides a network shooting range security management and control system, which comprises a plurality of physical node devices and virtual network bridges established on the physical node devices and used for performing access control in the same security domain, the virtual firewall built on the physical node equipment is used for performing access control in different security domains; and the virtual switch built on the physical node equipment is used for carrying out communication service between the physical node equipment and other physical node equipment. According to the invention, a security management and control mechanism with a network access layer, a convergence layer and a core layer is constructed through the established virtual network bridge, virtual switch and virtual firewall, multi-dimensional depth management and control of the network target range are realized, and convenience is provided for large-scale resource and complex network access. The invention further provides a network shooting range security control method.

The invention relates to a high-voltage high-capacity electric heating and heat accumulation regulation and control device adapted to electric power requirements. The device includes a 433 sender, a multichannel collector, a direct current power supply, an intelligent electric quantity metering device, a repeater and a remote monitoring center; the multichannel collector collects temperature information of a high-voltage sectioning switch and a voltage division breaker, sends the temperature information to the repeater through the 433 sender, is connected with the 433 sender; and the intelligent electric quantity metering device is used for detecting the voltage, current, environment temperature and time parameter of a line where the voltage division breaker is, gives an alarm when an abnormal state is detected, and sends to the repeater. The advantages are that according to user requirements, grid-connected access or switching of an energy conservation and heat accumulation mode can be performed at any time, and seamless access of a power grid is realized; capacity extension and reconstruction can be performed according to actual needs of the user, and setting and monitoring of a working mode are performed for capacity extension as needed; and a piezoelectric induction wireless sensor is adopted to solve the problem of ultrahigh voltage temperature measurement.

The invention discloses an intelligent SMS (short message service) platform system and an SMS (short message service) implementation method based on the system, wherein the method comprises a plurality of intelligent short message sub-services such as SMS diversion, SMS return receipt, SMS storage, SMS signature, and SMS automated response, etc. The system and the method disclosed in the invention have the advantages that based on standard protocols, an unified external interface is realized, therefore, the seamless accesses of SMGW, SMSC, MSPGW interfaces, etc. can be realized; meanwhile, the system and the method disclosed in the invention meet the general technical specifications of intelligent SMS as well as the function requirements of an office party for future mobile application.

The invention provides a switching method of a distributed type multi-jump wireless network. The wireless network comprises a switch point, at least one relay node and at least one moving node used to note the switch information of the mobile node relative to the relay node adjacent to the mobile node; when the mobile node moves, it sends the switch pleasing to one relay node adjacent to the mobile node; the relay node feedbacks a switch allocate information to the mobile node; the relay node sends a path update information to the next relay node and to other relay nodes until the path update information is transferred to the switch point; the switch point dose path information update.

The invention discloses a network access control method, device and core equipment. The network access control method includes the steps that the core equipment obtains an information message of a user terminal; virtual local area network identification in the information message is compared with virtual local area network identification corresponding to user terminal identification in a preset user authentication table entry, and the corresponding relation between the user terminal identification and virtual local area network identification of an access network is saved in the user authentication table entry; when the virtual local area network identification in the information message is different from the virtual local area network identification corresponding to the user terminal identification in the preset user authentication table entry, the virtual local area network identification in the information message is used for replacing the virtual local area network identification corresponding to the user terminal identification in the preset user authentication table entry, and the user terminal is allowed to get access to the network. By the adoption of the scheme, loads of an authentication server are reduced, the system performance of the authentication server is improved, and therefore the user terminal can get access to the network in a seamless mode when a place is changed.

The invention provides an indoor integration network system based on visible light communication and a communication access method. The indoor integration network system based on visible light communication comprises a visible light source, a visible light indoor base station and a visible light indoor gateway. The visible light indoor base station comprises a wireless communication module set and a universal link processing module, wherein the wireless communication module set comprises various wireless communication modules, and the various wireless communication modules include a visible light communication module, a wireless cellular communication module and the like, so that various heterogeneous wireless access technologies are supported; the universal link processing module is used for processing data forwarded by the wireless communication module set to generate uplink IP data packets with the uniform formats, distributing links to downlink IP data packets sent by an external network of a core network in a cellular network system, and transmitting the downlink IP data packets to a visible light terminal. The visible light indoor gateway is used for sending the uplink IP data packets to the core network, and forwarding the downlink IP data packets sent by the core network to the visible light indoor base station. Therefore, according to the indoor integration network system based on visible light communication and the communication access method, effective integration between visible light communication and an existing wireless communication system is achieved.

The embodiment of the invention provides a distribution network regional smart terminal including a control chip and uplink communication modules. The uplink communication module includes an LTE230 module, a Wifi module, a GPRS module, a 4G module, and an optical communication module. The control chip is used for receiving the distribution data of distribution equipment and selecting different uplink communication modules to transmit the distribution data to a remote power distribution automation master station. The distribution network regional smart terminal flexibly adjusts the networking topological structure of the distribution communication terminal in different regions according to a distribution terminal deployment environment, achieves seamless access of distribution terminals in different regions and different types, significantly enhances the composite communication efficiency of wireless communication access technologies, and fiber wireless fusion access efficiency, reduces the distribution network communication system construction operation and maintenance cost, and improves the comprehensive utilization efficiency of a distribution network communication system.

The invention provides an SNMP-based transmission network unified network management system, belongs to the technical field of power communication network management, and specifically relates to an SNMP-based transmission network unified network management system. The invention provides an SNMP-based transmission network unified network management method to well shield underlying transmission protocol differences. The method includes following steps: step 1, a management station sends a control data packet, employing an SNMP management protocol, and performs transmission through a non-connection-oriented UDP; step 2, a request queue receives the control data packet from the management station; step 3, protocol analysis is conducted on the received data packet, and a communication protocol stack, a management information model and a network management protocol type are obtained and stored in an information base; and step 4, a sub-agent module is delegated to collect and analyze information of managed equipment, the information is stored in a data processing module, and the protocol type of the managed equipment is recorded in the processing module of the management information model.

The invention discloses a gateway cluster communication method, network equipment and a gateway cluster system, and the method comprises the steps: obtaining a first dynamic mapping data table which is transmitted by a plurality of pieces of second network equipment in communication connection with first network equipment; updating the first static mapping data table based on the first dynamic mapping data table, and generating a first data list in one-to-one correspondence with the plurality of pieces of second network equipment based on the first static mapping data table; in response to thestate change of the at least one second network equipment, obtaining first target mapping data corresponding to the at least one second network equipment from the first data list; and deleting the first mapping data matched with the first target mapping data from the first static mapping data table. By means of the mode, the communication efficiency between the network equipment can be improved,and the storage pressure of the gateway cluster system is relieved.