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Assembling method for controller area network (CAN) data frames applied in ship dynamic information acquisition device

A technology of information collection and assembly method, applied in the direction of data exchange through path configuration, data exchange network, digital transmission system, etc., can solve complex and unsuitable problems in the professional field of ship power information collection, and meet CAN communication requirements Effect

Active Publication Date: 2013-03-20
NO 719 RES INST CHINA SHIPBUILDING IND
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  • Abstract
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AI Technical Summary

Problems solved by technology

The CAN protocol specification is a specification that all CAN bus networks abide by, but it is only the most basic and lowest-level protocol, and users must design the application layer protocol by themselves
At present, several companies, such as CANopen, DeviceNet, etc., have developed a general CAN application layer protocol for users to choose, but this general application layer protocol is relatively complicated and not suitable for professional fields such as ship power information collection.

Method used

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  • Assembling method for controller area network (CAN) data frames applied in ship dynamic information acquisition device
  • Assembling method for controller area network (CAN) data frames applied in ship dynamic information acquisition device
  • Assembling method for controller area network (CAN) data frames applied in ship dynamic information acquisition device

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Embodiment Construction

[0020] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0021] see figure 1 As shown, the ship power information acquisition device includes: 1 to 64 equipment boxes, a shielded box with electrical connectors, a data acquisition host in the shielded box, and a backplane located in the data acquisition host. The data acquisition host includes at least 3 For mutually redundant CAN (Controller Area Network, Controller Area Network) bus modules (A, A', B, B', C, C'), 1 network switching module, 1 pair of mutually redundant switching Management module, 1 pair of mutually redundant data processing modules, 1 pair of mutually redundant power supply modules, and optical isolation module. Each pair of mutually redundant CAN bus modules provides 4 CAN channels. Each equipment chassis includes 1 to 16 acquisition boards, each acquisition board provides 1 to 16 transmission channels, and the acquisit...

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Abstract

The invention discloses an assembling method for controller area network (CAN) data frames applied in a ship dynamic information acquisition device, and relates to the field of CAN buses of the ship dynamic information acquisition. The assembling method comprises the following steps: setting a unique identity (ID) for each equipment chassis and each acquisition board inside each equipment chassis, setting numbers for a channel of each acquisition board in order, wherein each route of data of multiple routes of the data sent by each acquisition board corresponds to a channel number, and packaging the numbers of the equipment chassis ID, the acquisition board ID inside the equipment chassis, and the acquisition board channel in the CAN data frames. The assembling method for the CAN data frames applied in the ship dynamic information acquisition device realizes confirmation of identifiers in the CAN data frames and distribution of data bytes, and is capable of satisfying requirements of CAN communication of the ship dynamic information acquisition device.

Description

technical field [0001] The invention relates to the CAN bus field of ship power information collection, in particular to a CAN data frame assembly method applied to a ship power information collection device. Background technique [0002] CAN (Controller Area Network, Controller Area Network) is a mature, reliable, and widely used serial communication network in the world. The CAN protocol specification is a specification that all CAN bus networks abide by, but it is only the most basic and lowest-level protocol, and users must design the application layer protocol by themselves. At present, several companies, such as CANopen, DeviceNet, etc., have developed a general CAN application layer protocol for users to choose, but this general application layer protocol is relatively complicated and not suitable for professional fields such as ship power information collection. Contents of the invention [0003] The purpose of the present invention is in order to overcome the def...

Claims

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Application Information

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IPC IPC(8): H04L12/951H04L12/40H04L47/43
Inventor 徐斌张晓辉丁玮熊卿
Owner NO 719 RES INST CHINA SHIPBUILDING IND
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