A data transmission method system, device and computer readable storage medium
A data transmission method, computer program technology, applied in the direction of digital transmission system, transmission system, safety communication device, etc., to achieve the effect of ensuring safety
Active Publication Date: 2022-08-02
北京和利时工业软件有限公司
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[0004] The purpose of the present invention is to provide a data transmission method, system, device and computer-readable storage medium to solve the problem of how to ensure the safe operation of the internal control system
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[0046] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, but not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.
[0047] Embodiments of the present invention disclose a data transmission method, system, device and computer-readable storage medium, so as to solve the problem of how to ensure the safe operation of an internal control system.
[0048] see figure 1 , a data transmission method provided by an embodiment of the present invention specifically includes:
[0049] S101: Receive a general protocol data packet obtained by using an external ...
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The invention discloses a data transmission method, which firstly receives general protocol data obtained by an external network card, parses the legal data packets in it to obtain target data, and converts the target data into private protocol data. When the current system is an open side system , you can use the private protocol to send the private protocol data packet to the security side, and then the security side forwards the data to the internal system. The open side system and the security side system communicate through private protocols. The general protocol data packets of the external system cannot be directly transmitted to the security side, while the internal system communicates directly with the security side system. Therefore, when the external communication data packets When it cannot be transmitted to the security-side system, it cannot be transmitted to the internal system, thereby ensuring the security of the internal system. The present application also provides a data transmission method, system, device and computer-readable storage medium, which can also achieve the above technical effects.
Description
technical field [0001] The present invention relates to industrial control communication technology, and more particularly, to a data transmission method, system, device and computer-readable storage medium. Background technique [0002] In the field of industrial control, standard industrial communication protocols, such as OPC, ModbusTCP, etc., are used to transmit data between different control systems. These protocols are all based on the TCP / IP protocol. The traditional communication scheme is usually to install a gateway between the systems that need to communicate, and carry out data transmission through the industry standard protocol based on the TCP / IP protocol. However, since TCP / IP is an open standard protocol, it is easy for external attackers to generate dangerous data packets based on this protocol, and then use this protocol to transmit to the internal system of the industrial control thread to attack the internal system. Therefore, the current data transmiss...
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IPC IPC(8): H04L69/08H04L67/01H04L69/22H04L9/40
Inventor 方垒焦小英侯兴明
Owner 北京和利时工业软件有限公司