VAV cabinet control system that airs exhaust

The utility model discloses a VAV cabinet control system that airs exhaust, include: a plurality of cabinets of airing exhaust, a plurality of relaying, server, handheld PDA, the cabinet of airing exhaust includes singlechip, damper actuator, sensor module, a communication unit, fan control ware, light control ware, a bluetooth communication module, handheld PDA includes the 2nd bluetooth communication module, PDA treater, environment monitoring group spare, the urgent button of airing exhaust. Beneficial effect: the cabinet of airing exhaust passes through internal face wind speed and the window displacement of sensor module monitoring cabinet to through fan control ware, damper actuator regulation fan power and air valve opening, thereby the adjusting surface wind speed is stable in suitable value, respectively air exhaust cabinet and relay communication, each relaying and server communication, cabinet control and data monitoring realize airing exhaust on a large scale, handheld PDAcan carry out the environ