The invention relates to a credential cross-platform unidirectional optical isolation
data transmission and release method and
system, and belongs to the field of
data processing. The method comprises the following steps: triggering a
signal-creative cross-platform one-way
data acquisition isolation optical
shutter through an initialization protocol, the one-way
data acquisition isolation optical
shutter covering an
intranet processing layer, an
extranet processing layer and a single link physical
optical fiber layer, and executing the initialization protocol to perform dual-channel independent initialization on network hardware interfaces of the
intranet processing layer and the
extranet processing layer; the user configuration parameters are analyzed, and a configuration strategy is generated based on the user configuration parameters and used for configuring a one-way
data acquisition isolation optical
shutter; generating and executing an interface activation protocol of the one-way data acquisition isolation optical shutter based on the user configuration parameters; the
intranet processing layer of the unidirectional data acquisition isolation optical shutter receives field
network data and unidirectionally transmits the field
network data to the
extranet processing layer, and the extranet processing layer delivers the field
network data to a specified
server. According to the invention, one-way
secure transmission of data between the internal network and the external network is realized, and no information flowing to the internal network from the external network is ensured.