Communication protocol of bus control system

Abstract

The invention discloses a communication protocol of a bus control system. A building electrical installation bus protocol (topsmart protocol) follows ISO (international standardization organization) standards, and implements a physical layer, a data link layer and an application layer. The protocol is characterized in that an interface in the physical layer receives change of a network communication line without definition of physical media; the data link layer judges and processes data information obtained from a connecting adaptation layer, analyzes and processes the data obtained from the control interface, and transmits the data to the connecting adaptation layer. An addressing mode is based on a point-to-point mode; two addressing modes including point-to-multipoint and broadcasting manners are expanded, so that the communication efficiency is greatly improved; and control and resource share of each device in the building are implemented. The product adopting the communication protocol is low in cost, simple in structure, convenient to use, perfect in functions, high in reaction speed and strong in antijamming capability.

Description

technical field [0001] The invention relates to an electrical installation bus protocol, which belongs to the technical field of building intelligent installation bus. Background technique [0002] With the development of society, there are more and more requirements for the intelligence and informationization of buildings. Digital blocks, digital parks, and digital building groups formed by various building groups such as offices, residences, commercial buildings, and factories continue to emerge, making intelligent buildings move from single intelligent buildings to intelligent and digital buildings. [0003] Building intelligent control network technology became popular in the United States as early as the 1970s. X-10 protocol, LonWorks protocol and CEBus (Consumer Electronic Bus) launched by the American Electronics Industry Association all adopted control network technology and formulated a unified Communication Protocol, a communication protocol, through which each de...

AI Technical Summary

Problems solved by technology

In addition, European electrical manufacturers have also formulated the European Installation Bus, that is, the EIB standard, but its system is complex and costly, and it is difficult to promote it in domestic applications

[0004] Looking at the above-mentioned types of bus protocols, none of them are fully suitable for the use of ordinary residential and commercial buildings in China. We need a simple, reliable and suitable bus protocol suitable for China's national conditions to realize the control and resource sharing of various devices in buildings.

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