Abstract: A parametric design method for a fan coil unit based on BIM (Building Information Modeling) includes steps of: determining a basic sample; parametrically modeling; setting pipe connection locations and connection sizes of a two-pipe fan coil and a four-pipe fan coil; setting component visibility; completing control settings of left-right one-click selection for the fan coil; arranging an air pipe behind an air outlet of the fan coil; producing air duct flexible connectors; producing diffusers; adding parameter controls of a “yes or no” type to a return air box, a lower return air flange, and a back to return air flange; completing production of pipes and connectors, and naming. In a heating and ventilation BIM design of building engineering, with the above method, efficiencies of designing, modeling and plotting are obviously increased.

Abstract: The present disclosure provides a smoke detecting circuit and a display panel using the smoke detecting circuit. The circuit includes a smoke sensor, a smoke detecting module, and a first switch module. When the circuit is triggered on fire or smoking because of a short circuit, the smoke sensor is able to detect a smoke signal, the smoke detecting module is able to export a controlling signal immediately to control disconnection of the first switch module, cutting off a power source of a load, and protecting the load immediately while an accident happens. The load can be a display panel. The smoke detecting circuit is used for detecting the smoke signal of the display panel, without any additional external multi-function card, which reduces the installation space of the display panel with an easier arrangement of flat cables, and protects the display panel right away from accidents.

Abstract: The present disclosure provides a smoke detecting circuit and a display panel using the smoke detecting circuit. The circuit comprises a smoke sensor, a smoke detecting module, and a first switch module. When the circuit is triggered on fire or smoking because of a short circuit, the smoke sensor is determining to detect smoke signal, the smoke detecting module is determining to export controlling signal immediately to control the disconnection of the first switch module, cutting off the power source of the load, protecting the load immediately while the accident happens. A load can be a display panel. A smoke detecting circuit is used for detecting the smoke signal of the display panel, without any additional external multi-function card, which reduces the installation space of the display panel with an easier arrangement of flat cables, determining to protect the display panel right away from the accidents.

Abstract: A parametric design method for a fan coil unit based on BIM (Building Information Modeling) includes steps of: determining a basic sample; parametrically modeling; setting pipe connection locations and connection sizes of a two-pipe fan coil and a four-pipe fan coil; setting component visibility; completing control settings of left-right one-click selection for the fan coil; arranging an air pipe behind an air outlet of the fan coil; producing air duct flexible connectors; producing diffusers; adding parameter controls of a “yes or no” type to a return air box, a lower return air flange, and a back to return air flange; completing production of pipes and connectors, and naming. In a heating and ventilation BIM design of building engineering, with the above method, efficiencies of designing, modeling and plotting are obviously increased.