Virtualization and self-adaptive communication system and communication method of multiple interfaces of optical digital tester

Abstract

The invention relates to a virtualization and self-adaptive communication system of multiple interfaces of an optical digital tester and a communication method thereof. The communication data packet is established according to the communication model; the communication data packet is sent to a receiving module; the communication data packet is converted into a bus sequence. Sending data; the frame judgment module judges the consistency between the target port number of the received data sent by the bus timing sequence and the receiving port of the corresponding communication subject. If they are consistent, they are cached in the sending buffer module, and the sending source selection module traverses each sending buffer module. And send the bus timing received data to the deframe module; the sending module transmits the communication data packets converted by the deframe module to the receiving port of the corresponding communication subject. The invention does not need in-depth understanding of channel establishment, maintenance and release, and only needs to fill in simple target port number, source port number, data packet length, communication data segment and check field to complete reliable and high-bandwidth data transmission.

Description

technical field [0001] The invention relates to the field of digital maintenance and testing of secondary equipment in intelligent substations, in particular to a virtualization and self-adaptive communication method for multiple interfaces of an optical digital tester. Background technique [0002] With the rapid development of my country's smart grid, there are more and more digital substations, and the detection and testing of secondary equipment in the station requires a large number of testing instruments. These test and measurement instruments have evolved from a single form of optical Ethernet port to numerous physical interfaces, such as SGMII (Serial Gigabit Media-Independent Interface) Gigabit Ethernet port, MII (Medium-Independent Interface) 100M Ethernet, FT3 interface, Analog DAC (Digital to Analog Converter) interface, etc.; not only the physical form is different, but also the number is expanded from 4, 8 to 16. In addition, there are other interfaces or buse...

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Problems solved by technology

But the disadvantages are also more prominent. For example, these interfaces connected to the bus must transmit data under the unified scheduling control of the central processor or controller, resulting in more time-consuming processors; the unified addressing mode is used when there are many peripherals or interfaces. , the bit width of the address bus is relatively large, and the combinatorial logic chain for addressing is too large, resulting in the inability to increase the system clock, which further leads to a decrease in bandwidth; in addition, the physical form, bandwidth, and delay of these interfaces are quite different, resulting in increased system complexity. Big

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