Abstract: A labyrinth sealing device for reducing gas intrusion is provided. A sealing bush is provided with a jet hole at the front of a tooth tip gap. The jet hole faces a tip of a corresponding sealing tooth. A gas flow injected by the jet hole suppresses hot gas flowing into the tooth tip gap. The sealing bush is provided with a first intercepting member at the rear of the tooth tip gap, and the sealing tooth is provided with a second intercepting member at the rear of the tooth tip gap. The first intercepting member hinders hot gas flowing against an inner wall of the sealing bush, and the second intercepting member hinders hot gas flowing against the sealing tooth, such that a part of the hot gas flows in a reverse direction and is violently mixed with subsequent hot gas.

Abstract: A labyrinth sealing device for reducing gas intrusion is provided. A sealing bush is provided with a jet hole at the front of a tooth tip gap. The jet hole faces a tip of a corresponding sealing tooth. A gas flow injected by the jet hole suppresses hot gas flowing into the tooth tip gap. The sealing bush is provided with a first intercepting member at the rear of the tooth tip gap, and the sealing tooth is provided with a second intercepting member at the rear of the tooth tip gap. The first intercepting member hinders hot gas flowing against an inner wall of the sealing bush, and the second intercepting member hinders hot gas flowing against the sealing tooth, such that a part of the hot gas flows in a reverse direction and is violently mixed with subsequent hot gas.

Abstract: A dispatching method for polling device data. The method comprises: sorting managed devices according to their types, sorting various types of data of each device so as to form different modules, and assigning a priority attribute and a polling period attribute to each module; dividing the managed devices into two sets: one set consisting of devices to be polled and the other set consisting of devices whose connection states need to be detected; and polling each module in the set consisting of devices to be polled according to its priority and polling period periodically. Different polling periods can be set and different polling policies can be applied according to data changeability. Polling policies can be changed in real time and flexibly based on the condition of devices.

Abstract: An embodiment of the present invention discloses a method for distributing a service according to a terminal type, wherein a correspondence relation table for storing correspondence relations between a terminal type and an IP address of a network administration server, and an IP address of a service server is preset in a DHCP (Dynamic Host Configuration Protocol) server, and the method comprises the steps of: a terminal initiating, a DHCP access request to a network with terminal type information included in the access request; the DHCP server issuing an assigned IP address to the terminal, and querying for and issuing an IP address of a network administration server and an IP address of a service server corresponding to the terminal type information; the terminal registering with the network administration server according to the obtained IP address of the network administration server, and obtaining an access to the network; the terminal initiating a service request to the service server according to the ob

Abstract: A dispatching method for polling device data. The method comprises: sorting managed devices according to their types, sorting various types of data of each device so as to form different modules, and assigning a priority attribute and a polling period attribute to each module; dividing the managed devices into two sets: one set consisting of devices to be polled and the other set consisting of devices whose connection states need to be detected; and polling each module in the set consisting of devices to be polled according to its priority and polling period periodically. Different polling periods can be set and different polling policies can be applied according to data changeability. Polling policies can be changed in real time and flexibly based on the condition of devices.

Abstract: The invention discloses a dispatching method for polling device data. The method comprises the steps of: sorting managed devices according to their types, sorting various types of data of each device so as to form different modules, and assigning a priority attribute and a polling period attribute to each module; dividing the managed devices into two sets: one set consisting of devices to be polled and the other set consisting of devices whose connection states need to be detected; and polling each module in the set consisting of devices to be polled according to its priority and polling period periodically. With this invention, different polling periods can be set and different polling policies can be applied according to data changeability. In addition, polling policies can be changed in real time and flexibly based on the condition of devices.

Abstract: A service provisioning method includes: a corresponding relation between the physical address of a terminal and the service information of a user is stored in a service server; after a service request from the terminal is receipted by the service server, the service requested for the user is determined by the service server according to the physical address of the terminal and the corresponding relation between the physical address of the terminal and the service information of the user; and the service is provided to the terminal by the service server. A service provisioning system comprises the terminal and the service server. The method and the system can realize the service provision automatically.

Abstract: An embodiment of the present invention discloses a method for distributing a service according to a terminal type, wherein a correspondence relation table for storing correspondence relations between a terminal type and an IP address of a network administration server, and an IP address of a service server is preset in a DHCP (Dynamic Host Configuration Protocol) server, and the method comprises the steps of: a terminal initiating, a DHCP access request to a network with terminal type information included in the access request; the DHCP server issuing an assigned IP address to the terminal, and querying for and issuing an IP address of a network administration server and an IP address of a service server corresponding to the terminal type information; the terminal registering with the network administration server according to the obtained IP address of the network administration server, and obtaining an access to the network; the terminal initiating a service request to the service server according to the ob

Abstract: The invention discloses a dispatching method for polling device data. The method comprises the steps of: sorting managed devices according to their types, sorting various types of data of each device so as to form different modules, and assigning a priority attribute and a polling period attribute to each module; dividing the managed devices into two sets: one set consisting of devices to be polled and the other set consisting of devices whose connection states need to be detected; and polling each module in the set consisting of devices to be polled according to its priority and polling period periodically. With this invention, different polling periods can be set and different polling policies can be applied according to data changeability. In addition, polling policies can be changed in real time and flexibly based on the condition of devices.