Abstract
The fire protection volume curtain gate is the modernized construction fire protection necessary facility, mainly uses in the inner wall, between the elevator, channel main hall, in room gap and so on place, also may take the outer wall use.Has at the same time the fire protection, windproof, rainproof and security and so on many kinds ofkinetic energy.
This design for protects from fire the volume curtain gate intelligence control device design, also realizes the monolithic integrated circuit automatic control fire protection volume curtain gate, this design selects cpu is 89c52, the smallest system has the replacement and the address lock saves the function.Selects 6264 in the data-carrier storage aspect.The I/O part expansion selects 8155, the interior includes two 8 and 6 programmable parallel I/O part.The detector selects the P732 feeling smoke detector and the TWDD electron in this design decides the warm detector, belongs to the switch quantity output, the signal receives the fire signal through the resistance voltage dropping resistor transmission to cpu, cpu sends out the acousto-optics through the tweeter and the light emitter diode to report to the police, then sends out the instruction to start the three-phase electrical machinery, the release volume curtain gate, is equipped with the middle spacing.The volume curtain gate drops divides two steps, the smoke detector reports to the police the volume curtain gate release to the middle spacing, the warm detector reports to the police the volume curtain gate release to the base.Is equipped with the manual button nearby the volume curtain gate, the hand control equipment should be able first to insert stops the operation anxiously.The three-phase electrical machinery through the relay by the monolithic integrated circuit control, this design software part mainly realizes detector auto-alarm and starts the three-phase electrical machinery and the pressed key interrupt function.
Key words: Monolithic integrated circuit; Detector; Three-phase electrical machinery;