Multi-field integrated metering network interconnecting routing method

Abstract

The present invention relates to a multi-site synthesis measuring network interconnection routing method, which belongs to the technical field of building automation. A central processor in the method comprises the following steps: establishing routing table, setting path, receiving analysis, searching in a memory, searching in the routing table, switching protocol, transmitting data and memorizing for storing. The next routing switching operation is waited after completing one transformational cycle. If the style of source protocol is same with that of the target protocol, a null transformation is executed and the source protocol is transmitted directly. After a first searching in routing table, each instrument can memorize the path, and the following data transmission can be completed with the memory after learning. The method of the invention has the characteristic of intelligentization.

Description

technical field [0001] The invention relates to a multi-site integrated metering network interconnection routing method, in particular to a routing method for various field buses and Ethernets applied to building integrated metering, and belongs to the technical field of building automation. Background technique [0002] According to the applicant's knowledge, there are a large number of measurement and control instruments from different manufacturers in the intelligent building industry, which support various protocols and protocols. Due to the many existing industrial control protocol standards, various measurement and control instruments are not compatible with each other and cannot achieve interoperability, resulting in high maintenance costs. In this way, in the application of the existing intelligent building industry, the interconnection and unified management of various measurement and control instruments have become insurmountable problems, making users rely too muc...

AI Technical Summary

Problems solved by technology

Due to the large number of existing industrial control protocol standards, various measurement and control instruments are not compatible with each other and cannot achieve interoperability, resulting in high maintenance costs

In this way, in the application of the existing intelligent building industry, the interconnection and unified management of various measurement and control instruments have become insurmountable problems, making users rely too much on the selection of measurement control equipment through on-site measurement instruments or the selection of field instruments through measurement control equipment , has seriously affected the practical application of building metering equipment and restricted the development of the metering industry

[0003] Moreover, there is no device that can simultaneously support the communication of field measuring instruments of various industrial control protocols. At best, it can only support one-to-one conversion between the two protocols. For example, the converter disclosed in the Chinese patent with publication number CN2819664 , one-to-one conversion of non-standard protocols and bus protocols can be performed, so that each terminal device needs a converter, which will undoubtedly increase the cost of the overall networking and the complexity of deployment

[0004] Another example is the Chinese patent application whose publication number is CN101047592. Its technical solution focuses on connecting a kind of industrial control bus to the TCP / IP network, but it cannot support the interconnection between two kinds of industrial control instruments. In essence, it can only be used as a converter exists

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