Kyland Technology Co., Ltd.

Baihua Xue

Huayi Ma

Jianchao Huang

Yingjun He

Jianfeng Zhang

Qiyun Jiang

Jie Ding

Shuchang Zhao

Fanmin Chen

The invention discloses a method of automatic management on configuration information based upon an intelligent substation, the intelligent substation applying the IEC-61850 standard including IED devices and a switch, wherein the method includes the following steps: parsing an intelligent substation configuration file to acquire communication configuration information and communication association configuration information of the IED devices; and generating a switch configuration file from the communication configuration information and the communication association configuration information of the IED devices. The invention can parse the intelligent substation configuration file, generate the switch configuration file and perform automatic configuration of the industrial Ethernet switch in the intelligent substation using the switch configuration file.

Configuration information auto-management method based on intelligent substation

A time-triggered Ethernet (TTE)-based data transmission method and node device, solving the problem of wasting network bandwidth resources in the prior art during TTE-based data transmission; in the method, a main node determines a scheduling period table based on a time-triggered packet; when a node has a to-be-transmitted event-triggered packet, and the node determines, according to the information stored in the scheduling period table, that a physical link occupied by the event-triggered packet is not in conflict with a physical link corresponding to the current time slot, the node transmits the event-triggered packet in the current time slot. The main node does not need to separately allocate time for the event-triggered packet of each node. Therefore, when a node has a to-be-transmitted event-triggered packet, the node can transmit the event-triggered packet in the current time slot as long as the physical link occupied by the event-triggered packet is not in conflict with the physical link corresponding to the current time slot, thus effectively improving data transmission efficiency and network bandwidth utilization.

Time-triggered Ethernet-based data transmission method and node device

Disclosed is a method of implementing a redundant network. Ring network nodes in an initial state are set as master stations, ring ports are set in a half-blocked state, a master station election notification message is broadcast to the ring ports within a preset time interval, the nodes receive the master station election notification message, a node quality comparison vector is compared with node quality comparison vectors of the nodes to elect a master and standby stations, one of the ring ports is in the half-blocked state, the other ring ports are in a forwarding state, the master station broadcasts the master station election notification message to the ring ports, the standby master station stops sending the master station election notification message, the ring ports are in the forwarding state, and the message sent by the master station is received.

Redundant network implementation method

Provided are a transparent clock passive port election method and device based on the PTP protocol. In the method, by extracting the TLV field of a received announce message, a first port of a network device acquires the clock identification information, forwarding times information and port identification information carried in the TLV field, and then compares the forwarding times information and clock identification information carried in the TLV field to the forwarding times information carried in the TLV field contained in a received announce message from a port by itself, and its own clock identification information, so as to select a port as a passive port. Therefore, by adding the comparison factors, such as clock identification information, forwarding times information and port identification information, in the TLV field of an announce message, a transparent clock is allowed to support the PTP protocol, thus avoiding a protocol storm formed by a PTP message in a complex topology network and a ring network constituted by the transparent clock to improve the stability of the network.

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Beijing, China

Baihua Xue