Network communication system, fault control method and engineering mechanical equipment

A network communication and fault technology, applied in the direction of total factory control, total factory control, electrical program control, etc., can solve problems such as loss

Inactive Publication Date: 2012-10-17
CHANGSHA ZOOMLION FIRE FIGHTING VEHICLE
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  • Abstract
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Problems solved by technology

[0003] However, in occasions that have high requirements for collaborative work, such as assembly line operations, high-altitude m

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  • Network communication system, fault control method and engineering mechanical equipment

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Embodiment Construction

[0012] Specific embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings. It should be understood that the specific embodiments described here are only used to illustrate and explain the present invention, and are not intended to limit the present invention.

[0013] figure 1 It is a flow chart of the fault control method for the network communication system provided by the present invention. Such as figure 1 As shown, a network communication system, the system includes a plurality of nodes, and each node is used to: send a heartbeat message with a node identifier every predetermined time (for example, 50-500ms), and detect messages from other nodes A heartbeat message; and when a heartbeat message of a node in the plurality of nodes is not detected within a predetermined period of time, or a detected heartbeat message of a node in the plurality of nodes indicates a failure Next, it stops sending its own data messa...

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Abstract

The invention discloses a network communication system, a fault control method and engineering mechanical equipment. The system comprises a plurality of nodes, wherein each node is used for sending a heartbeat message with a node identifier at a preset time interval and detecting the heartbeat messages from other nodes; and under the condition that the heartbeat message of one of the nodes is not detected in a preset time period or the detected heartbeat message of one of the nodes fails to indication, each node stops sending the data message and recovers an own control signal into a preset security locking state. According to the network communication system and the fault control method, after one of the nodes in the system fails, the network communication system is kept in a security locking state; and therefore heavy loss can be avoided.

Description

technical field [0001] The invention relates to the field of engineering machinery, in particular to a network communication system, a fault control method of the network communication system, and engineering machinery equipment including the network communication system. Background technique [0002] In the field of control, the CANOPEN network is widely used. In a general CANOPEN network, when a node in the CANOPEN network goes offline, the master node will wait for its heartbeat timeout to determine that it is offline, then stop the offline node, and try to restart the offline node. [0003] However, in occasions that have high requirements for collaborative work, such as assembly line operations, high-altitude manned operating vehicles, etc., if a node communication fails and the system is still running, it may cause great losses. Contents of the invention [0004] The purpose of the present invention is to provide a network communication system, a fault control metho...

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Application Information

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IPC IPC(8): G05B19/418
CPCY02P90/02
Inventor 熊忆黎明和马钰罗建利梁更生
Owner CHANGSHA ZOOMLION FIRE FIGHTING VEHICLE
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