Zigbee technology based central air-conditioning cold source monitoring system and method

A technology for central air conditioning and monitoring systems, applied in heating and ventilation control systems, heating and ventilation safety systems, heating methods, etc., can solve the problems of incompatibility of various fieldbuses, unsuitable wiring, difficulties, etc., and achieve low operation. Cost, convenient expansion, and the effect of large economic benefits

Inactive Publication Date: 2015-04-29
IANGSU COLLEGE OF ENG & TECH
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  • Abstract
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Problems solved by technology

Although FCS based on fieldbus overcomes many shortcomings of the original DCS (distributed control system), there are still some shortcomings as follows: ① A variety of fieldbuses coexist and are incompatible with each oth

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  • Zigbee technology based central air-conditioning cold source monitoring system and method
  • Zigbee technology based central air-conditioning cold source monitoring system and method
  • Zigbee technology based central air-conditioning cold source monitoring system and method

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[0033] A central air-conditioning cold source monitoring system based on zigbee technology, adopts a tree topology to form a cold source monitoring network, and a distributed address allocation mechanism performs network address allocation, including:

[0034] The coordinator node, which has the function of data sending and receiving, is the central node of the network, responsible for building a ZigBee network, and acts as a gateway node to communicate with router nodes for monitoring data and control data;

[0035] Router node, with data sending and receiving function, responsible for network routing and data transmission, including the main router node and each sub-router node, data communication between each sub-router node and between each sub-router and the main router node, the router node and the main router node respectively. The coordinator node, the monitoring node and the control node communicate with each other of monitoring data and control data;

[0036] The mon...

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Abstract

The invention discloses a zigbee technology based central air-conditioning cold source monitoring system and method. The tree topology is adopted to establish a cold source monitoring network, enabling a distributed address allocation mechanism to perform network address allocation, and the monitoring network is composed of a coordinator node, a routing node and a monitoring node. The coordinator node is a network center node, is responsible for establishment of a zigbee network and serves as a gateway node. The routing node is responsible for network routing and data transmitting. Terminal nodes include the monitoring node and a control node. A wireless zigbee technology is introduced into the central air-conditioning cold source monitoring system, the distributed address allocation mechanism performs network node address allocation, and a relevant gateway can be established between a Zigbee netork and a field bus network to serve as a bridge of the networks and to be merged into an existing FCS field bus network, so that an existing wired BACnet building automation system can conveniently perform expansion in a low operation cost mode and obtains high economic benefit.

Description

technical field [0001] The invention relates to a cold source monitoring system, in particular to a central air-conditioning cold source monitoring system and method based on wireless zigbee technology. Background technique [0002] Central air-conditioning is widely used in modern buildings. At present, the management and control of the central air-conditioning cold source system has become an important part of the building automation system. [0003] At present, Lonworks, BACnet, CAN, EIB and other fieldbus technologies have been widely used in the monitoring of central air-conditioning cold source systems. Although FCS based on fieldbus overcomes many shortcomings of the original DCS (distributed control system), there are still some shortcomings as follows: ① A variety of fieldbuses coexist and are incompatible with each other, resulting in the interoperability of FCS only in the same field implemented in the bus system. ②Because the existing fieldbus is wired conn...

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Application Information

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IPC IPC(8): F24F11/00
CPCF24F11/30F24F11/52F24F11/58F24F11/62
Inventor 蔡彬彬胡为民宋楚平
Owner IANGSU COLLEGE OF ENG & TECH
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