bacnet in china – efficient system integration of building automation and control technology...
TRANSCRIPT
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BACnet in China – Efficient system integration of building automation and
control technology
October 20th 20092009 年 10 月 20 日
推进楼宇自控和系统集成的新发展
H. Michael Newman
Cornell Univerity
BACnet in a Nutshell –
The Success Story of the
BACnet Protocol
BACnet 北京论坛
2009
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October 20th 2009 / 2009 年 10 月 20 日 2
Before BACnet...
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October 20th 2009 / 2009 年 10 月 20 日 3
After BACnet...
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October 20th 2009 / 2009 年 10 月 20 日 4
Reasons for BACnet's success:
• BACnet is the only standard protocol designed specifically for building control. It was designed from the beginning to support:
– Alarm and event processing– Command prioritization– Scheduling– Trending
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October 20th 2009 / 2009 年 10 月 20 日 5
Reasons for BACnet's success:
• BACnet doesn't depend on current technology
– BACnet is implemented through software, not hardware
– BACnet's objects and services are independent of the underlying network technology
– BACnet/WebServices allow communication between BACS and enterprise applications (for example: room scheduling, energy monitoring)
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October 20th 2009 / 2009 年 10 月 20 日 6
Reasons for BACnet's success:
BACnet LAN - Ethernet, ARCNET, MS/TP, LonTalk, or BACnet/IP
Sensors and Actuators
BACnet Field Panels
BACnet Workstation
Vendor AVendor A
Vendor BVendor C
• BACnet has no fixed architecture. Can be flat:
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October 20th 2009 / 2009 年 10 月 20 日 7
Reasons for BACnet's success:
• Or BACnet networks can be hierarchical:BACnet LAN - Ethernet
BACnet Field Panel
BACnet Workstation
Vendor A
Sensors and Actuators
Vendor CVendor C
BACnet LAN - ARCNET
Sensors and Actuators
Ethernet to ARCNET
Router
Vendor BVendor BBACnet
Field Panels
BACnet Field
Panels
Ethernet to MS/TP Router
BACnet LAN - MS/TP
Sensors and Actuators
Net 1
Net 3Net 2
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October 20th 2009 / 2009 年 10 月 20 日 8
Reasons for BACnet's success:
• Can be implemented in devices of any size
– Application specific controllers– Configurable, fixed-program controllers– General purpose, programmable controllers– Workstations and Web servers
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October 20th 2009 / 2009 年 10 月 20 日 9
Reasons for BACnet's success:
• Most BACnet devices are actually small...
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October 20th 2009 / 2009 年 10 月 20 日 10
Reasons for BACnet's success:• BACnet can be easily enhanced to embrace building technologies beyond HVAC&R:
– Access control– Elevators– Lighting control– Utility integration– Video surveillance
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October 20th 2009 / 2009 年 10 月 20 日 11
Reasons for BACnet's success:
• No charge for BACnet's use - no fees, licenses, or royalties. BACnet is an ISO standard.
¥ € $
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October 20th 2009 / 2009 年 10 月 20 日 12
The Biggest Reason for BACnet's success?
People from all over the world
Communication specialistsBuilding automation engineersBuilding ownersGovernment officialsManufacturersBuilding operatorsSoftware engineers and programmers
working together!
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October 20th 2009 / 2009 年 10 月 20 日 13
谢谢!
BACnet and China
The BACnet community looks forward to working with our colleagues from BIG-CN, SAC/TC426 and elsewhere to make BACnet a success in China and worldwide!