A Graphical Programming Language and Its Supporting Tool for Insect Intelligent Building

Table 2

Classification and examples of graphic elements.

Element category	Content	Basic graphics		Examples
Member block	Six categories: Space units, HVAC, water system, power distribution, firefighting, and security, which can be further refined based on devices		AHU	Pump	Space unit
Community block	With two nodes: Starting community block and ending community block		Starting community block	Ending community block	Water system
Terminal block	Terminal devices, actuators, sensors, and variables		Pressure	Temperature	Group of lights
Operate block	Mathematical operations, logic operations, network operations, and parameters		Sum	Logical operations AND	Maximize
Process block	Delay, loop, select, jump, time count, number count, trigger, etc.		Trigger	Selection	Timer
Customizable block	Program encapsulation		Customizable SUM	Customizable pressure increase	Customizable attemperation