Device for seamless switching of host and standby of communication management machine and method thereof
A communication management machine and seamless switching technology, applied in the field of communication, can solve the problems of security in the system, unable to send the main machine, inconsistent working status of the main machine and standby machine, etc., to achieve good real-time transmission, small data volume, and ensure communication reliability. and the effect of continuity
Active Publication Date: 2012-07-11
广州智光节能环保有限公司
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Problems solved by technology
Due to the large amount of data in the real-time database, it cannot be sent from the master to the backup very frequently, and the working status of the master and backup is inconsistent during the switchover. As a result, the system is in a non-monitoring state during the switchover time, and seamless switchover cannot be achieved. The system buries security risks
Method used
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Embodiment 1
[0033] Such as figure 1 As shown, a device for seamless switching between the active and standby communication management machines, the device includes a main communication management machine and a backup communication management machine. connect.
[0034] Such as figure 2 As shown, the communication management machine host and the communication management machine backup have the same structure, and their structures include:
[0035] The structure includes several physical communication interfaces, a communication media device management unit, a message sending and receiving buffer unit, a downlink communication media protocol processing unit, a real-time database unit and an uplink communication media protocol processing unit;
[0036] The physical communication interface includes a physical communication interface receiving buffer and a physical communication interface sending buffer for receiving and sending message information;
[0037]When the communication media devi...
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The invention provides a device for seamless switching of a host and a standby of a communication management machine. The device comprises the host and the standby of the communication management machine. The communication management machine comprises a plurality of physical communication interfaces, a communication media equipment management unit, a message transceiving cache region unit, a downlink communication media protocol processing unit, a real-time database unit and an uplink communication media protocol processing unit. The invention further provides a method for seamless switching of the host and the standby of the communication management machine. By the seamless switching of the host and the standby of the communication management machine, the standby of the communication management machine is under working status of the analog host so as to keep the working status of the host and the standby in the same pace. In addition, the host only sends the information received on the existing uplink or downlink communication media link to the standby, so the data volume is small, realtime transmission can be realized, the purpose of seamless switching of the host and the standby of the communication management machine is achieved, and the invention has the great significance for communication reliability and continuity of the important monitoring occasion system.
Description
technical field [0001] The present invention relates to the technical field of communication, in particular to a device and method for seamlessly switching the active and standby communication management machines. Background technique [0002] As a communication hub of the monitoring system, the communication management machine has been widely used in various industrial automation systems. In some occasions that require high communication reliability, the communication management machine is usually used in the main and standby connection mode. At present, the general method used in the master-standby switchover of the communication management machine is that the master sends a safety (heartbeat) message and real-time database data to the backup machine at regular intervals. The communication management machine is switched from the main machine to the standby machine to continue working. Due to the large amount of data in the real-time database, it cannot be sent from the ma...
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IPC IPC(8): H04L12/24H04L1/22H04L12/56H04L12/861
Inventor 韩文陈庆
Owner 广州智光节能环保有限公司