A safety protection method and device for a traffic signal
A traffic signal and safety protection technology, applied in the field of intelligent transportation, can solve the problems of unrecognized and protected malicious control instructions, and achieve the effect of avoiding major traffic accidents and ensuring safety.
Active Publication Date: 2022-07-01
浙江国利网安科技有限公司
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[0004] However, the protection method through port filtering can only filter malicious attacks by criminals through other non-service ports, but cannot identify and protect malicious control commands sent through service ports, and there is still a relatively large security risk
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[0053] In order to make the purpose, technical solutions and advantages of this specification clearer, the technical solutions of the present application will be clearly and completely described below with reference to the specific embodiments of this specification and the corresponding drawings. Obviously, the described embodiments are only a part of the embodiments of the present application, but not all of the embodiments. Based on the embodiments in the description, all other embodiments obtained by persons of ordinary skill in the art without creative efforts shall fall within the scope of protection of the present application.
[0054] This manual provides a safety protection method for a traffic signal. The technical solutions provided by the embodiments of the present application will be described in detail below with reference to the accompanying drawings.
[0055] figure 1 A schematic flowchart of a safety protection method for a traffic signal provided in the embo...
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This specification discloses a safety protection method and device for a traffic signal. The safety protection terminal can obtain control data sent by the control terminal to the traffic signal, and parse the control data based on a protocol analysis library. Then, according to the abnormal feature matching library, feature matching is performed on each control content obtained by parsing. And when the control content and abnormal features are successfully matched, the control data is protected according to the protection strategy, otherwise, the control content is forwarded to the traffic signal, so that the traffic signal can adjust the display state of the traffic signal according to the control content. The control data is parsed by the security protection terminal, and abnormal feature matching is performed, which effectively monitors and intercepts malicious control data, avoids major traffic accidents caused by malicious attacks, and ensures the safety of the traffic system.
Description
technical field [0001] The present application relates to the technical field of intelligent transportation, and in particular, to a safety protection method and device for a traffic signal. Background technique [0002] Traffic signal is one of the important components in modern urban traffic system, which is used to control and manage traffic lights, traffic display screens, etc. on the road. [0003] In order to ensure the control safety of traffic signals and prevent illegal elements from maliciously and illegally controlling traffic signals and creating traffic chaos. At present, the method of port filtering is often used to protect traffic signals. Since there are several ports on the traffic signal, different ports are used to connect different services. Therefore, it is possible to prevent the malicious control of illegal elements by restricting the transmission of the port output on the traffic signal, allowing only the communication of the service port and prohib...
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IPC IPC(8): G08G1/07H04L9/40H04L67/12
CPCG08G1/07H04L63/1416H04L67/12
Inventor 褚健还约辉崔行薛金良
Owner 浙江国利网安科技有限公司