BACnet 2009 BACnet in China Efficient system integration

BACnet 北京论坛 2009 BACnet in China – Efficient system integration of building automation and control technology 推进楼宇自控和系统集成的新发展 BACnet in a Nutshell – The Success Story of the BACnet Protocol H. Michael Newman Cornell Univerity October 20 th 2009年 10月20日

Before BACnet. . . October 20 th 2009 / 2009年 10月20日 2

After BACnet. . . October 20 th 2009 / 2009年 10月20日 3

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 October 20 th 2009 / 2009年 10月20日 4

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/Web. Services allow communication between BACS and enterprise applications (for example: room scheduling, energy monitoring) October 20 th 2009 / 2009年 10月20日 5

Reasons for BACnet's success: • BACnet has no fixed architecture. Can be flat: BACnet LAN - Ethernet, ARCNET, MS/TP, Lon. Talk, or BACnet/IP BACnet Workstation BACnet Field Panels or A Vend r. A o Vend r. B o Vend or C Vend Sensors and Actuators October 20 th 2009 / 2009年 10月20日 6

Reasons for BACnet's success: • Or BACnet networks can be hierarchical: BACnet LAN - Ethernet BACnet Workstation BACnet Field Panel or A Vend Net 1 Ethernet to ARCNET Router Ethernet to MS/TP Router Sensors and Actuators BACnet LAN - ARCNET BACnet Field Panels o. Br Vend Sensors and Actuators October 20 th 2009 / 2009年 10月20日 BACnet LAN - MS/TP Net 2 BACnet Field Panels o. Cr Vend Net 3 or C Sensors and Actuators 7

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 October 20 th 2009 / 2009年 10月20日 8

Reasons for BACnet's success: • Most BACnet devices are actually small. . . October 20 th 2009 / 2009年 10月20日 9

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 October 20 th 2009 / 2009年 10月20日 10

Reasons for BACnet's success: • No charge for BACnet's use - no fees, licenses, or royalties. BACnet is an ISO standard. ¥ October 20 th 2009 / 2009年 10月20日 € $ 11

The Biggest Reason for BACnet's success? People from all over the world Communication specialists Building automation engineers Building owners Government officials Manufacturers Building operators Software engineers and programmers working together! October 20 th 2009 / 2009年 10月20日 12

BACnet and China The BACnet community looks forward to working with our colleagues from BIG-CN, SAC/TC 426 and elsewhere to make BACnet a success in China and worldwide! October 20 th 2009 / 2009年 10月20日 谢谢 13