Communication protocol modeling method

Abstract

The invention discloses a communication protocol modeling method. The method comprises the following steps of: S1, analyzing a communication protocol, and determining a system connected with the communication protocol and a mutual relation between the systems; S2, analyzing the composition form of the user-oriented application data of the communication protocol; and S3, establishing a model according to the relationship between the data elements of the communication data packet in the communication protocol. According to the invention, the data in the interface communication protocol of the serial communication type and the interaction relationship of the data are analyzed, a completely described mathematical model for various action relationships of the communication protocol is established; based on the mathematical model, a system communication protocol described by a natural language is converted into a machine language which can be recognized by a computer, then the purpose of automatically generating a test case is achieved by researching a certain test case calculation algorithm, and finally automatic execution of an interface protocol test is achieved, so that the test efficiency is improved.

Description

technical field [0001] The invention relates to the technical field of communication protocol modeling, in particular to an application-oriented serial interface communication protocol modeling method. Background technique [0002] Aerospace / aviation loads, weapons and equipment are generally composed of multiple systems. The most commonly used method for exchanging information between systems is still asynchronous serial communication, using serial buses in their respective fields, such as I2C, SPI, RS232 / 422 / 485 / UART, MIL-STD-1553, CAN, ARINC429, Ethernet, etc. The communication protocol builds data in accordance with the respective bus standards at the physical layer and data link layer, but at the application-oriented application layer, due to the vastly different working methods of system equipment, designers cannot follow a unified application when designing communication protocols at the application layer. Standards, but comprehensive consideration based on the need...

AI Technical Summary

Problems solved by technology

The communication protocol builds data in accordance with the respective bus standards at the physical layer and data link layer, but at the application-oriented application layer, due to the vastly different working methods of system equipment, designers cannot follow a unified application when designing communication protocols at the application layer. Standards, but comprehensive consideration according to the needs of system information interaction

Testing this protocol without a standard format consumes a lot of manpower and resources, and the test results obtained are not satisfactory, and the full coverage of the protocol test cannot be achieved.

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