Method and system for acquiring elevator loads

Abstract

The invention discloses a method and system for acquiring elevator loads. The method comprises the following steps that load information measured by a weighing device is acquired; revised loads corresponding to acquired load information are mapped out according to corresponding relations of prearranged revised loads of an elevator car and the load information measured by the weighing device; the revised loads which are mapped out are set as actual loads of the elevator car. The method and system for acquiring the elevator loads can effectively reduce load errors caused by the defective workmanship of an elevator and provides an accurate load basis for operations such as starting torque placing or giving of all kinds of replying orders of the elevator.

Description

technical field [0001] The invention relates to elevator load processing technology, in particular to a method and system for obtaining elevator load. Background technique [0002] At present, in order to improve the starting comfort of the elevator and enrich the functions of the elevator, it is necessary to measure the load of the elevator. The method of measuring the load of the elevator in the prior art is: 1. Install rubber and micro switches at the bottom of the car. The change of the car load will cause the deformation of the rubber, and the deformation of the rubber will touch the corresponding micro switch. A micro switch corresponds to a load range ; 2. Install rubber and eddy current sensors at the bottom of the car. The change of car load causes rubber deformation, and the eddy current sensor then acquires and analyzes the deformation curve of the rubber to obtain the load value; 3. Install a pressure sensor at the rope end of the machine room to control A press...

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Problems solved by technology

[0003] However, when the elevator is installed, its guide rails often have technical defects such as burrs and unevenness. These defects cause the inclination of the elevator car on each floor to be inconsistent, so that when the elevator is on different floors, the first method The signals output by the microswitch, the eddy current sensor in the second method or the pressure sensor in the third method are inconsistent for the same load, resulting in a large error between the weighing of the elevator weighing device and the actual load

[0004] In addition, during the use of the elevator, the load is often placed unevenly in the elevator, causing the elevator car to be unbalanced and tilted.

The longer the use time, the more serious the uneven force and the more serious the elevator tilts. This also makes the micro switch in the first way, the eddy current sensor in the second way or the third way when the elevator is on different floors. The signals output by the pressure sensor in the elevator are inconsistent with the same load, resulting in a large error between the weighing of the elevator weighing device and the actual load

[0005] Furthermore, during the operation of the elevator, the weight of the wire rope will also cause the weighing devices of the above three methods of measuring the elevator load to weigh the same load differently on different floors, which will cause the weighing of the elevator weighing device to be different from that of the elevator. There is a large error between the actual load

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