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1. An elevator operation quality detecting system, comprising an elevator operation quality detector, the elevator operation quality detector comprises a power supply having a charging function, a central processing module, a data transmission module, a data storage module, a data acquisition module, and a touch display module; the data transmission module, the data storage module, the data acquisition module, and the touch display module are all connected to the central processing module; the data acquisition module is connected to a signal sensing module, the signal sensing module comprises a tri-axial acceleration sensor and a tri-axial angular velocity gyroscope which are both connected to the data acquisition module; the data transmission module comprises a GPRS wireless transmission module and a USB interface circuit which are both connected to the central processing module; the central processing module is a DSP main controller; wherein the detecting system further comprises a weighing limiting bearing frame, a water belt, a water charging/discharging hose; the elevator operation quality detector further comprises a square housing, four foot cushions are provided around a bottom of the square housing, the foot cushions are composed of lifting cylinders, movable ends of the lifting cylinders are provided with anti-slip gaskets; the lifting cylinders are driven by cylinder driving circuits, the cylinder driving circuits are connected with the said central processing module; the weighing limiting bearing frame comprises a base and four limiting plates, the base is provided with a weighing area in a middle of the base, a periphery of the weighing area is provided with a limiting column, and bottoms of the limiting plates are provided with limiting holes for inserting the limiting column so that the four limiting plates form a limiting frame above the weighing area, in which a lower end of one limiting plate is provided with an opening, the water belt is placed in the limiting frame and a water charging/discharging outlet of the water belt are exposed by the opening; the water charging/discharging outlet is provided with a gate switch; one end of the water charging/discharging hose is connected to the water charging/discharging outlet and the other end is used to connect a water intake pipeline; a front side of the base is provided with a weight display panel, and the weight display panel shows a weight of water obtained in the weighing area plus a weight of the weighing limiting bearing frame itself.
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