Indoor fresh air control system
A control system and indoor fresh air technology, applied in heating and ventilation control systems, ventilation systems, heating and ventilation safety systems, etc., can solve problems such as inability to meet scene work requirements, waste of electricity, and reduced service life, and improve indoor air. The effect of quality and guarantee of excellence
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Embodiment 1
[0035] A kind of indoor fresh air control system, such as figure 1 As shown, it includes: fresh air system 1, carbon dioxide sensor 2, human body sensor 3, and master controller 4. The detection field of the human body sensor 3 covers the inside and outside of the door, and transmits detection signals to the general controller 4 . The carbon dioxide sensor 2 is installed indoors and transmits detection signals to the general controller 4 . The master controller 4 controls the fresh air system 1 to supply air to the room.
[0036] like figure 2 As shown, the fresh air system 1 includes: an air supply device. The air supply device provides fresh air to several air inlet pipes 104 through the main air inlet pipe 101, and the air outlets of the air inlet pipes 104 are arranged at different positions in the room. The main air inlet pipe 101 has a filter 102 between the air supply device and the air inlet pipe 104 . The filter 102 and the divided air inlet pipe 104 are connect...
Embodiment 2
[0042] Based on the indoor fresh air control system described in Embodiment 1, the detection field of the human body sensor 3 covers the inner and outer parts of the door. When someone enters and exits the door, the human body sensor 3 sends the tracked human body movement trajectory to the people counting module. The population statistics module performs the following statistical analysis of acquaintances:
[0043] (1) Obtain the preset number of people information A.
[0044] (2) Set up a virtual scene, and set up a virtual line at the position corresponding to the door in the virtual scene.
[0045] (3) Self-virtualization divides the virtual scene into indoor and outdoor.
[0046] (4) When a person's movement trajectory crosses the virtual line from the outside and enters the room, it is recorded as the number of people +1. When a human movement trajectory crosses the virtual line from indoors and enters outdoors, it is recorded as the number of people -1.
[0047] (5) ...
Embodiment 3
[0051] Based on the indoor fresh air control system described in Embodiment 2, the fresh air control module receives information from the carbon dioxide sensor 2 and the current number of people in the room N: when N exceeds the first threshold, or when the indoor carbon dioxide concentration detected by the carbon dioxide sensor 2 exceeds the second threshold , sending a startup instruction to the air supply device and the electronically controlled airflow controller 105, and not sending a shutdown instruction to the air supply device and the electronically controlled airflow controller 105 at least within a preset first preset time. The fresh air opening and closing control of the present invention is mainly regulated based on the number of people in the room or the concentration of carbon dioxide in the room. When the number of people in the room or the concentration of carbon dioxide in the room is too high, the air supply device and the electronically controlled airflow con...
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