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Weighing device of CAN bus elevator car

A CAN bus and weighing device technology, applied in the field of elevator control, can solve the problems of inaccurate motor torque and inverter current deviation, and achieve the effects of convenient installation and debugging, high positioning accuracy, and low data error rate

Inactive Publication Date: 2009-12-23
上海爱登堡电梯集团股份有限公司
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  • Abstract
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  • Claims
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Problems solved by technology

However, the transmission of the analog signal is limited by the distance. Once the distance is a little longer, the signal will attenuate, causing the current output by the inverter to deviate, resulting in inaccurate torque output by the motor.

Method used

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  • Weighing device of CAN bus elevator car
  • Weighing device of CAN bus elevator car

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Embodiment Construction

[0023] The present invention will be further described below in conjunction with accompanying drawing.

[0024] see figure 1 and figure 2 , the figure shows a CAN bus car weighing device of the present invention, including an elevator control system 5, a frequency converter 4, the frequency converter 4 is arranged in the machine room 6, and the frequency converter 4 is connected to the elevator through a traction machine 7 The car 8 is connected, and the lower part of the car 8 has a crossbeam (not shown in the figure), and also includes an inductive proximity load cell 1, a car main control board 2 and a computer board 3 that are electrically connected in sequence, wherein:

[0025] The inductive proximity load cell 1 is a non-contact elevator weighing control device, which is fixed on the beam of the elevator car 8 to measure the relative distance between the car 8 and the beam after being compressed by gravity. Output the corresponding analog voltage signal A1 to the car...

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Abstract

The invention discloses a weighing device of a CAN bus elevator car, comprising an elevator control system and a transducer, wherein the transducer is arranged in an equipment room and connected with the elevator car of the elevator through a tractor; and the lower part of the elevator car is provided with a beam. The weighing device of the CAN bus elevator car also comprises an inductive proximity weighing sensor, an elevator car main control board and a computer board which are electrically connected in sequence, wherein the computer board outputs a signal to the transducer and the elevator control system. The weighing device of the CAN bus elevator car can ensure the real time, the accuracy and the flexibility of signal transmission and can realize the smoothness and the comfort of the elevator running.

Description

technical field [0001] The invention relates to the field of elevator control, in particular to a CAN bus car weighing device. Background technique [0002] As a vertical transportation tool in a building, the elevator not only needs to operate safely and efficiently, but also has higher requirements for the comfort of the elevator. The operation of the elevator is realized by the rotation of the motor, and the weight of the elevator car directly affects the output torque of the motor when it starts. With the number of passengers and the weight of the passengers in the car, the total weight of the car also changes. At this time, we expect the motor to output different torques according to the weight of the car. [0003] An economical method is to install several mechanical switches at the lower part of the active car of the elevator. They correspond to different loads of the elevator. By judging which mechanical switch operates, you can know the approximate range of the loa...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B66B1/28
Inventor 刘婧冒忠伟
Owner 上海爱登堡电梯集团股份有限公司
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