Redundant system communication method based on double-port RAM

The technology of a redundant system and communication method is applied in the field of redundant system communication based on dual-port RAM, which can solve the problems of poor data reliability and slow data transmission speed, etc.

Inactive Publication Date: 2016-09-28
冯东瑾
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Problems solved by technology

However, the signal system in the prior art has the problem

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  • Redundant system communication method based on double-port RAM

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[0016] The present invention provides a redundant system communication method based on dual-port RAM. In order to make the purpose, technical solution and advantages of the present invention clearer and clearer, the present invention will be further described in detail below with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0017] Such as figure 1 As shown, the entire vehicle signal system is mainly composed of the main processing system MPS, the safety I / U device GVIO (General Vital I / U) and external devices. MPS mainly transmits and receives data through GVIO, communicates with external devices, and completes the system's state collection and control functions. As a communication interface module, GVIO supports a variety of interfaces to connect with external devices: connect to interlock devices through RSX22; co...

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Abstract

The invention discloses a redundant system communication method based on dual-port RAM. Aiming at the problems of slow signal data transmission speed and poor data reliability of vehicle-mounted signal equipment in the prior art, the invention proposes a multi-role-based ring buffer method, taking multiple measures to avoid access conflicts, increasing the data interaction rate of dual-port RAM, and ensuring the security and reliability of data interaction in redundant systems. Data transmission is improved, and the security of the system is also improved.

Description

technical field [0001] The invention relates to the communication field, in particular to a redundant system communication method based on dual-port RAM. Background technique [0002] The vehicle-mounted signal equipment used in the track signal system in the prior art is mainly used to collect status data and output control instructions. During the operation, the amount of communication data is large, and the communication process must have extremely high safety and reliability. During the development of on-board signal equipment, it is necessary to consider a variety of design schemes to improve reliability. The more common method is to carry out redundant fault-tolerant design. However, the signal system in the prior art has the problems of slow data transmission speed and poor data reliability. [0003] Therefore, the prior art still needs to be improved and developed. Contents of the invention [0004] Aiming at the above-mentioned defects of the prior art, a multi-...

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Application Information

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IPC IPC(8): H04L12/40H04L12/413
CPCH04L12/40176H04L12/413
Inventor 冯东瑾
Owner 冯东瑾
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