Are there any standards for how completely the haystack taxonomy has been applied to a particular building?
Say I require haystack tags be applied to all points visible in a BAS as commissioning standard. Are there defined levels of conformance?
For example, at the simplest, I might put the tag temp on a sensor. Alternately, I may put a tag temp and a reference to the vav and a ref to an ahu. The ahu may have a ref to a chiller which may have a ref to a chiller plant. Using a complete set of haystack tags with all refs included, I can create a complete topology of a system.
I could also associate rooms with zones, but with how many? If a zone is a collection of spaces, and spaces may be rooms, then a room can be part of a thermal zone. It may be a part of a different lighting zone. It may also be a part of a solar zone. Although I haven’t seen it defined, a set of rooms could also be associated with a tenant/lease. Are there standards that say “to get to a level 100, all spaces must be associated with a thermal zone”?
In BIM, there are defined “Levels of Development” (LOD) LOD 100 - Essentially the equivalent of conceptual design, the model would consist of overall building massing and the downstream users are authorized to perform whole building types of analysis (volume, building orientation, cost per square foot, etc.)
LOD 200 - Similar to schematic design or design development, the model would consist of "generalized systems or assemblies with approximate quantities, size, shape, location and orientation." Authorized uses would include "analysis of selected systems by application of generalized performance criteria."
LOD 300 - Model elements are suitable for the generation of traditional construction documents and shop drawings. As such, analysis and simulation is authorized for detailed elements and systems.
LOD 400 - This level of development is considered to be suitable for fabrication and assembly. The MEA for this LOD is most likely to be the trade contractor or fabricator as it is usually outside the scope of the architect's or engineer's services or would constitute severe risk exposure if such parties are not adequately insured.
LOD 500 - The final level of development represents the project as it has been constructed - the as-built conditions. The model is suitable for maintenance and operations of the facility.
Are there any analogous definitions for quality and completeness of a set of haystack tags?
Brian FrankTue 23 Jul 2013
There is nothing really like that today. I guess a basic level you could define the "core" model of site/equip/point and what would be considered your required tags. But modeling data is much more open ended based on what data you have and what data the applications need.
Toby Considine Mon 22 Jul 2013
Are there any standards for how completely the haystack taxonomy has been applied to a particular building?
Say I require haystack tags be applied to all points visible in a BAS as commissioning standard. Are there defined levels of conformance?
For example, at the simplest, I might put the tag temp on a sensor. Alternately, I may put a tag temp and a reference to the vav and a ref to an ahu. The ahu may have a ref to a chiller which may have a ref to a chiller plant. Using a complete set of haystack tags with all refs included, I can create a complete topology of a system.
I could also associate rooms with zones, but with how many? If a zone is a collection of spaces, and spaces may be rooms, then a room can be part of a thermal zone. It may be a part of a different lighting zone. It may also be a part of a solar zone. Although I haven’t seen it defined, a set of rooms could also be associated with a tenant/lease. Are there standards that say “to get to a level 100, all spaces must be associated with a thermal zone”?
In BIM, there are defined “Levels of Development” (LOD) LOD 100 - Essentially the equivalent of conceptual design, the model would consist of overall building massing and the downstream users are authorized to perform whole building types of analysis (volume, building orientation, cost per square foot, etc.)
LOD 200 - Similar to schematic design or design development, the model would consist of "generalized systems or assemblies with approximate quantities, size, shape, location and orientation." Authorized uses would include "analysis of selected systems by application of generalized performance criteria."
LOD 300 - Model elements are suitable for the generation of traditional construction documents and shop drawings. As such, analysis and simulation is authorized for detailed elements and systems.
LOD 400 - This level of development is considered to be suitable for fabrication and assembly. The MEA for this LOD is most likely to be the trade contractor or fabricator as it is usually outside the scope of the architect's or engineer's services or would constitute severe risk exposure if such parties are not adequately insured.
LOD 500 - The final level of development represents the project as it has been constructed - the as-built conditions. The model is suitable for maintenance and operations of the facility.
Are there any analogous definitions for quality and completeness of a set of haystack tags?
Brian Frank Tue 23 Jul 2013
There is nothing really like that today. I guess a basic level you could define the "core" model of site/equip/point and what would be considered your required tags. But modeling data is much more open ended based on what data you have and what data the applications need.