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

The invention discloses a ground base station, a multicast satellite resource allocation method and a communication system, and the method comprises the steps: carrying out the subgroup division of user terminals according to a channel quality index CQI value for the user terminals of the same multicast satellite; according to the CQI value of each subgroup user terminal, allocating a modulation and coding mechanism (MCS) service of a corresponding level to each subgroup; calculating the resource allocation weight of the MCS services of each level according to the distributed minimum data rateof the MCS services of each level; and according to the resource allocation weight of the MCS service allocated to each subgroup, respectively calculating the number of resource blocks RB allocated to each subgroup. The wireless resource management is simple, the higher QoS can be ensured, and the resource distribution fairness can be met.

The invention discloses an intelligent Internet-of-things building system configuration and has properties of flatness and no center. Comprehensive sensing of various physical parameters in an intelligent building constructed based on the Internet-of-things building configuration can be realized, new data sharing and work coordination requirements are satisfied, problems of a data island, incomplete data acquisition, low resource utilization rate and high operation and maintenance cost of a traditional intelligent building are solved, an operation and maintenance mode of the traditional intelligent building is changed, through heterogeneous network fusion, information gathering, decision diagnosis, feedback control and big data analysis, an integrated service management system capable of realizing unification between base-level equipment and upper-level applications is formed.

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 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 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.