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Data addressing and repeating method and system in control network

A technology for controlling network and data, applied in the direction of digital transmission system, transmission system, data exchange network, etc., can solve the problems of damaged system reliability, inability to get rid of dependence, inability to seamlessly connect, etc., to increase openness and simplify complexity The effect of speed and flexible forwarding

Active Publication Date: 2008-02-27
新动力(北京)建筑科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0027] This centralized structure cannot form detailed seamless connections in different subsystems, and devices between different subsystems cannot realize complete communication (data addressing and forwarding) functions
They allow only limited status and control information to be transferred between different subsystems; not always accessible between end devices; systems cannot adapt their responses in real time based on overall system state
Of course, more complex control systems can be built through the use of gateways and custom programs, but they are usually not cost effective and the reliability of the system will suffer
Once the system is complete, the user cannot break away from the dependence on the vendor who provides the gateway and custom program

Method used

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  • Data addressing and repeating method and system in control network
  • Data addressing and repeating method and system in control network
  • Data addressing and repeating method and system in control network

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0063] 1) The structure of the network

[0064] Figure 2 shows a networking form of an end-to-end peer-to-peer control network: the system consists of end devices, gateways, and switching servers. The gateway is responsible for connecting various terminal devices, and encapsulates the data of various terminal devices into data frames conforming to the Ethernet transmission protocol and forwards them to the exchange server. Addressing and forwarding of data between. A gateway can connect multiple end devices. One exchange server can connect multiple gateways. All exchange servers in the network are connected to standard Ethernet, and are kept interconnected through Ethernet switches. The communication between the gateway and the switching server, between the switching server and the Ethernet switch is performed according to the Ethernet protocol, and between the gateway and the end device according to the RS-485 serial communication protocol.

[0065] 2) Assignment of addre...

Embodiment 2

[0098] 1) The structure of the network

[0099] Figure 8 shows another networking form of the peer-to-peer control network: the system consists of terminal devices and switching servers. The most important difference from the network structure of Embodiment 1 is that each end device has an interface conforming to the Ethernet protocol, and can encapsulate data packets into a data frame conforming to the Ethernet protocol, so each end device in this embodiment It can directly communicate with the switching server without going through the gateway device in the first embodiment.

[0100] The exchange server has a source-sink relationship table of the information nodes in the terminal equipment in memory, and is responsible for the source-sink forwarding between terminal equipment data. One exchange server can have many end devices. All exchange servers in the network are connected to standard Ethernet, and are kept interconnected through Ethernet switches.

[0101] 2) Assignm...

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Abstract

This invention provides a method and a system for controlling addressing and transferring data in a control network containing a source and nodes accumulating information applying multiple kinds of communication protocols including: 1, setting a source accumulation list with a corresponding relation of a source and accumulated information node address , 2, packaging data packets sent by the source information node according to a predesigned protocol and sending them to a switch server, 3, the switch server refreshes the destination field based on the address of the corresponding accumulated information node and transferring said packaged data to the acumulation information node, which concentrates addressing of data and transfer process to a switch server and the end device communicates with the coresponding switch server only.

Description

technical field [0001] The invention relates to building automation systems for buildings and modern households, in particular to a method and system for addressing and forwarding data in an end-to-peer control network. Background technique [0002] Intelligence is a trend in the development of buildings and modern homes. With the expansion of building functions, the current intelligent building control content is more and more, and the control degree is becoming more and more complex. In order to meet the requirements of the building environment, reduce energy consumption, improve residential comfort and realize the scientific management of buildings, the Building Automation System (BAS) emerged as the times require. A system of control, self-regulation and self-management. The so-called building mechanical and electrical systems usually include: heating, ventilating and air conditioning (HVAC), cold and heat source systems, water supply and drainage systems, lighting sys...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L12/56H04L29/06H04L45/74
Inventor 江江王贵春孟芦闫永超
Owner 新动力(北京)建筑科技有限公司
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