The invention provides an overhead laboratory ventilation and
air exchange system belonging to the technical field of intelligent
laboratory design. The overhead laboratory ventilation and
air exchange system comprises a
wrist action identifier, a control panel, a
wireless signal transmitter, an accelerator sensor, a geomagnetic sensor, a
gyroscope, electrically-operated door, a
wireless signal receiver, a controller and a wiring harness; the control panel is arranged outside the
wrist action identifier, while the
wireless signal transmitter, a battery, the accelerator sensor, the geomagnetic sensor and the
gyroscope are arranged inside the
wrist action identifier; the electrically-operated door is arranged in a front wall of a laboratory; the
wireless signal receiver and the controller are arranged in the top wall of the laboratory. In the overhead laboratory ventilation and
air exchange system, an experimenter can opening and closing of the room door of the laboratory and other devices through movements of the wrist. The overhead laboratory ventilation and air exchange system is reasonable in design, simple in structure, and suitable for the design of a laboratory intelligent system.