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Application method for HB6096 data bus

A technology of data bus and application method, applied in the field of aviation data communication, can solve the problems of disorder, loss and lack of system status, and achieve the effect of ensuring consistency

Inactive Publication Date: 2013-05-08
XIAN AIRCRAFT DESIGN INST OF AVIATION IND OF CHINA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] In general HB6096 data bus applications, 32-bit words are used as the transmission and processing unit, but due to the limited state information transmitted by each data word, in practical applications, multiple The data words represent the system state at the same time sequence. If these data words are processed in different cycles, or some of these data words are transmitted incorrectly or lost, the processing results will cause the interpreted system state to occur. Deranged or missing

Method used

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  • Application method for HB6096 data bus
  • Application method for HB6096 data bus

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0015] In this example, the data is divided into normal data and maintenance data according to its nature. It is stipulated that the header of the normal data packet is 001 in octal, the header of the maintenance data packet is 350 in octal (octal), and the tag of the tail of the packet is 376 in octal. The valid data length of the normal data is 7, and the valid data length of the maintenance data is 2. The data length is filled in the 19-bit data area according to the BCD code format.

[0016] The generation method of the packet header word is: if it is normal data, fill in binary 00000001 from the 8th bit to the 1st bit. In the 19-bit data area, fill in binary 0000000000000001010 from the 29th bit to the 11th bit. If it is maintenance data, fill in binary 11101000 from the 8th to the 1st. In the 19-bit data area, fill in binary 00000000000000000010 from the 29th to the 11th.

[0017] The generation method of the end of the packet is as follows: fill in the binary 11111110 ...

Embodiment 2

[0020] In this example, the data is divided into task data, self-test data and configuration information data according to its nature. The label is 003 in octal, and the label at the end of the package is 300 in octal. The valid data length of the task data is 100, the valid data length of the self-test data is 35, and the valid data length of the configuration information data is 20. The data length is filled in the 19-bit data area according to the BCD code format.

[0021] The generation method of the packet header word is: if it is the task data, fill in the binary number 00000001 from the 8th to the 1st bit, and fill in the binary 0000000000100000000 from the 29th to the 11th bit in the 19-bit data area; Fill in binary 00000010 from the 8th bit to the 1st bit, and fill in binary 0000000000000110101 from the 29th bit to the 11th bit in the 19-bit data area; if it is configuration information data, fill in binary 00000011 from the 8th bit to the 1st bit, 19-bit data The a...

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Abstract

The invention belongs to the aeronautical data communication technology and relates to an application method of an HB6096 data bus. By adopting the method of introducing data package communication to HB6096 data bus communication, integrity of all data words in the same data package and indicating the same system status is guaranteed in the communication process. The fact that a data package has one more word or one less word during a communication process can both lead to invalidity of the data package, but the one more word or the one less word cannot cause misreading of the system status. Meanwhile, time consistency of the data words in the same data package is guaranteed due to the fact that transmitting equipment always packages and transmits data words which indicate the system status of the same time. Receiving equipment receives a complete and valid data package which inevitably indicates the system status of the same time, and confusion of the system status information of different time cannot be caused.

Description

technical field [0001] The invention belongs to aviation data communication technology and relates to an application method of HB6096 data bus. Background technique [0002] The HB6096 data bus is a full-duplex bus, that is, the information output of the avionics system equipment can only be transmitted from a designated port to the receiving port of other system equipment connected to it that needs the information, but the information must not flow back to the existing It is specified as the port for sending information, that is, the information is transmitted in one phase. When two-way transmission between two communication devices is required, an independent transmission bus is used in each direction. [0003] The transmitting device and the receiving device use twisted-pair shielded wires to transmit information. The twisted-pair shielded wires are required to be grounded at both ends of the shielded wires and at all interruptions. The shielding layer should be connecte...

Claims

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Application Information

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IPC IPC(8): H04L1/00
Inventor 杜方张勇李忍锁宁静闫云娟
Owner XIAN AIRCRAFT DESIGN INST OF AVIATION IND OF CHINA