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device description file objects typical applications system function object system/device/file device registration complete device description text things device description method introduction interpretation status trigger key technical specifications device description language veneer blades public grid inflatable membrane structure annex c
GB/T 35134-2017 in English

GB/T 35134-2017 in English

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Smart home for internet of things—Device description method

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《GB/T 35134-2017物联网智能家居 设备描述方法》由TC426(全国智能建筑及居住区数字化标准化技术委员会)归口,TC426SC1(全国智能建筑及居住区数字化标准化技术委员会智慧居住区分会)执行,主管部门为住房和城乡建设部。


Introduction

Interpretation of the core content of the standard

Functional object type Contained objects Typical applications
System function object System/Device/File Device registration, status query
Basic function object AnalogValue/SwitchValue, etc. Volume adjustment, switch control
Synthetic function object Schedule/Action Timed task, status trigger

Key Technical Specifications

Device Description Language (DDL)

The standard defines a strict syntax structure:

  • Object Delimiter: {/ and /}
  • Function Delimiter:
  • Parameter Separator: Semicolon (;)

Data Structure Specifications

Data Type Byte/Boolean/Text/Array
ClassID Class number 1-99
FunctionID Hexadecimal code

Implementation Recommendations

Building intercom application example

Appendix B of the standard shows the complete device description text of the building intercom, including:

  1. System registration function (System object)
  2. Basic device information (Device object)
  3. Call/answer switch control (SwitchValue object)
  4. Door lock status enumeration (EnumValue object)

Development precautions

  • The three basic objects of System/Device/File must be implemented
  • The device description file must comply with GB/T 1988 and GB2312 encoding
  • The number of function parameters must strictly match the definition

Sample only — not a preview of GB/T 35134-2017
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