Photoelectric encoder rotating pulse display device

Abstract

The invention discloses a photoelectric encoder rotating pulse display device, and belongs to the application field of photoelectric encoder measuring. The photoelectric encoder rotating pulse display device comprises a photoelectric coupler, a field-programmable gate array (FPGA), a crystal oscillator, a configured chip and a display device. The photoelectric coupler receives and amplifies AB two-phase pulse signals which are outputted by a photoelectric encoder, and then outputs the two-phase pulse signals to the FPGA. The FPGA calculates according to the received pulse signals to obtain the rotating direction, the rotating angle and the number of pulses of the photoelectric encoder, and transmits the calculated results to the display device. The configured chip is used for storing the algorithmic routine of the FPGA. The crystal oscillator is used for providing clock signals. The photoelectric encoder rotating pulse display device does not need to be driven by a large number of peripheral circuits, so that hardware cost can be saved, and transportability and expansibility are high. Meanwhile, the photoelectric encoder rotating pulse display device can display not only the pulse count but also the rotating angle so as to avoid a man-made wrong operation.

Description

technical field [0001] The invention belongs to the application field of photoelectric encoder measurement, and relates to a photoelectric encoder rotary pulse display device. Background technique [0002] Photoelectric encoder is a sensor that converts the mechanical geometric displacement on the output shaft into pulse or digital quantity through photoelectric conversion, and is currently the most widely used sensor. The role of the photoelectric encoder in the motion control system is to convert parameters such as position and angle into digital quantities. The rotary encoder is a device used to measure the rotational speed. It is divided into two types: single output and dual output. [0003] In the current engineering application, the operation of the stepper motor usually needs to be controlled by a photoelectric encoder. In the process of the encoder controlling the rotation of the stepper motor, the encoder is required to rotate at a certain angle, and the correspond...

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Problems solved by technology

[0003] In the current engineering application, the operation of the stepper motor usually needs to be controlled by a photoelectric encoder. In the process of the encoder controlling the rotation of the stepper motor, the encoder is required to rotate at a certain angle, and the corresponding stepper motor rotates at a certain angle. However, due to At present, most of the parameters such as the rotation angle are identified and operated manually, and the numbers are not automatically displayed, and misoperations are prone to occur, such as excessive motor wear caused by excessive rotation, exceeding the required angle, etc.

[0004] Most of the currently existing photoelectric encoder pulse display devices or methods are controlled by single-chip microcomputers. Compared with FPGAs, single-chip microcomputers require a large number of peripheral circuit drivers, which increases hardware costs and software complexity on the one hand, making software portability and plasticity poor. , on the other hand, it also makes the scalability of the device poor and the processing speed slow

At the same time, the current display device simply counts the output pulses without considering the rotation angle and direction of the photoelectric encoder, which makes it easy to cause misoperation during use

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