Photoelectric sensor switch monitoring protection circuit and monitoring method

Abstract

The invention discloses a photoelectric sensor switch monitoring and protecting circuit and a monitoring method. The photoelectric sensor switch monitoring and protecting circuit comprises a power supply unit, a signal transmitting unit, a signal receiving unit and a monitoring and protecting unit, the photoelectric sensor switch monitoring and protecting circuit is characterized in that the monitoring protection unit further comprises a noise detection module and a temperature detection module; the power supply unit inputs voltage into equipment and converts alternating current into direct current and stable output voltage through the rectifying and voltage stabilizing module; the signal transmitting unit controls the carrier waveform of the acquired signal by using baseband pulse througha modulation module, so as to accord with the transmitting standard of a signal transmitting tube; the signal receiving unit converts the received optical pulse into an electric pulse signal by usinga demodulation module and transmits the electric pulse signal to a load; the monitoring protection unit performs external environment detection by using a noise detection module and a temperature detection module; and according to the invention, the automatic diagnosis function of the photoelectric switch is realized, and errors of acquired signals are reduced, thereby ensuring accuracy and stability.

Description

technical field [0001] The invention relates to the field of photoelectric sensor switches, in particular to a photoelectric sensor switch monitoring protection circuit and a monitoring method. Background technique [0002] With the rapid development of science and technology in our country, both agricultural production and breeding, and industrial manufacturing are moving towards automated production systems and unmanned, so as to improve production efficiency and achieve safe production; thus, research and development using sensors and Light control technology is of great practical significance to realize unmanned management of production safety. [0003] The photoelectric switch has good hysteresis characteristics, so even if the detected object shakes in a small range, it will not affect the output state of the driver, so that it can be kept in a stable working area; it is driven by light radiation, when a certain strong light When the photoelectric sensor is irradiated...

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Problems solved by technology

[0003] The photoelectric switch has good hysteresis characteristics, so even if the detected object shakes in a small range, it will not affect the output state of the driver, so that it can be kept in a stable working area; it is driven by light radiation, when a certain strong light When the photoelectric sensor is irradiated on the photosensitive element, the switch is triggered and the signal is output; when the p

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