Data transmission method and system based on electromagnetic shielding body

Abstract

The invention provides a data transmission method and system based on an electromagnetic shielding body, the method is applied to a data sending end in the electromagnetic shielding body, and the method comprises the following steps: receiving communication data sent by each electronic information device; sequentially caching the communication data to a first ping-pong cache space and a second ping-pong cache space through ping-pong cache; caching the communication data cached in the first ping-pong cache space and the second ping-pong cache space to a corresponding first annular queue according to the data type of the communication data; reading the communication data cached in the first annular queues in sequence for data splicing to obtain spliced data; and sending the spliced data to a data receiving end outside the electromagnetic shielding body through an optical fiber. The communication data generated by the plurality of electronic information devices in the electromagnetic shielding body are cached in a ping-pong cache and annular queue mode, so that the problem of data loss caused by processing the data generated by the plurality of electronic information devices at the same time is avoided, and the validity and stability of data processing are ensured.

Description

technical field [0001] The present invention relates to the technical field of communication, in particular to a data transmission method and system based on an electromagnetic shielding body. Background technique [0002] Electromagnetic leakage means that the equipment of the information system can radiate out through ground wires, power lines, signal lines, parasitic electromagnetic signals or harmonics, etc., resulting in electromagnetic leakage. If these electromagnetic signals are received and processed by extraction, the original information can be recovered, resulting in information loss. [0003] In the prior art, in order to avoid electromagnetic information leakage of electronic information equipment, it is usually stored in an electromagnetic shielding body to prevent leakage through radiation. In practical applications, all kinds of electronic information equipment inevitably need to communicate with other equipment outside the electromagnetic shielding body. ...

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Problems solved by technology

[0004] In view of this, the embodiment of the present invention provides a data transmission method and system based on an electromagnetic shield to overcome the problem of data transmission in the prior art when multiple electronic information devices simultaneously need to transmit data with other devices outside the electromagnetic shield. Problems of low efficiency and poor stability

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