Message configuration processing method in 1553B bus BC mode based on management table

A technology for configuration processing and table management, which is applied in the field of aerospace system data communication, and can solve problems such as efficient management of messages

Active Publication Date: 2020-02-04
TIANJIN JINHANG COMP TECH RES INST
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Problems solved by technology

[0005] The purpose of the present invention is: provide a kind of message configuration processing method under the 1553B bus BC mode based on the management table, overcome the deficiency of the da

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  • Message configuration processing method in 1553B bus BC mode based on management table
  • Message configuration processing method in 1553B bus BC mode based on management table

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Embodiment Construction

[0024] In order to make the purpose, content and advantages of the present invention clearer, the specific implementation manners of the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments.

[0025] In order to solve the problem of low efficiency of the traditional message configuration method in the BC mode of the 1553B bus, the present invention uses a structure array to manage the message space management table. combine figure 1 Explain the main process of message configuration in 1553B bus BC mode based on the management table:

[0026] STEP1: Define a structure to describe the state of the message space

[0027] The content of the structure includes: the label index of the offset address (value range is 0 to 63), the node number RTn of the RT, the subaddress of the RT SUBRTn, and the direction of message transmission Dir (the direction from BC to RT is 1, and the direction from RT to BC is 2) Whether ...

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Abstract

The invention belongs to the technical field of aerospace system data communication. and discloses a configuration processing method of a data message in a 1553B bus BC mode based on a management table. The method comprises the following steps: a structure is defined to describe the use state of a message space, in the initialization process, a bus memory area is registered in a message managementtable, data transmission from a BC to an RT is managed based on the message management table, data transmission from the RT to the BC is managed based on the message management table, and the messagemanagement table is cancelled in data transmission dynamic management. According to the invention, the defects of a data message configuration processing method in a BC mode of the existing 1553B busare overcome; a method based on a management table is provided, a structure is designed to describe the state of a 1553B message space, the message management table is adopted to manage receiving andsending of data between a BC and an RT, and the problem of efficient message management in the process of processing a large number of messages at high frequency through a 1553B bus is solved.

Description

technical field [0001] The invention belongs to the technical field of aerospace system data communication, and relates to a message configuration processing method in 1553B bus BC mode based on a management table. Background technique [0002] The 1553B bus is a digital time-division command / response multiplexed data bus. Because of its high reliability, stable communication quality, easy expansion and maintenance, it has been widely used in aerospace electronic systems. [0003] A maximum of 32 RT terminals can be connected to the 1553B bus, and each RT can support a maximum of 32 RT sub-addresses to respond to a maximum of 32 receiving messages and 32 sending messages. Since the 1553B bus RAM can configure a small number of messages (generally 64 ), so the traditional 1553B bus BC mode message configuration method generally adopts the ring queue method, whether BC sends data to RT, or RT sends data to BC, the address of the same message space is incremented one by one, so...

Claims

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Application Information

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IPC IPC(8): G06F13/38G06F13/42
CPCG06F13/38G06F13/42
Inventor 王雨龙
Owner TIANJIN JINHANG COMP TECH RES INST
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