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Button system for reflective photoelectric sensors

A photoelectric sensor and button system technology, applied in the field of intelligent sensors, can solve the problems of inability to reuse, easy to hide dirt, short life, etc., and achieve the effect of multi-functional and practical, intelligent control, and good sealing

Inactive Publication Date: 2018-06-01
SHANGHAI LANBAO SENSING TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The mechanical button input method is easy to wear, easy to hide dirt, and has short lifespan. Because of the need to assemble mechanical buttons, the product cannot be completely closed, and the water resistance level of the product will be affected. Traditional mechanical buttons can only be adjusted by one button. One function cannot be reused. If you want to adjust multiple functions with buttons, you need to add multiple buttons, which increases the complexity of the structure.

Method used

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  • Button system for reflective photoelectric sensors
  • Button system for reflective photoelectric sensors
  • Button system for reflective photoelectric sensors

Examples

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Embodiment Construction

[0019] This solution uses ARM chip as the hardware platform, and the peripheral devices adopt inductive metal buttons, dual LED lamp display system, projection optical system, light receiving optical system, firmware development and related algorithms based on ARM chip, especially menu functions and remote settings Function, static teaching function, dynamic teaching function.

[0020] When a metal iron is close to the magnetic core and the coil, the inductance of the magnetic core and the coil will change, and thus the frequency amplitude of the oscillation will change. After processing by the integrated circuit, the product outputs a high-level signal and then transmits it to the single-chip microcomputer. After receiving the signal, handle the product accordingly.

[0021] Such as figure 1 As shown, pins 14 and 16 are externally connected to the LC vibration circuit, and through the amplifying circuit and feedback loop inside the integrated chip IC101, a sine wave is generated. ...

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PUM

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Abstract

A button system for reflective photoelectric sensors comprises an ARM-based main control system, a double-LED-lamp display system, a light projecting optical system and a light receiving optical system. The button system is characterized by further comprising inductive metal buttons. The inductive metal buttons are metal non-contact inductive buttons. The button system comprises a magnetic core and a coil. The buttons are located on a substrate inside a reflective photoelectric sensor. When the metal buttons approach the magnetic core and the coil, the inductance of the magnetic core and the coil changes, and the frequency amplitude of oscillation changes. After the change is processed by an integrated circuit, an output high level signal is transmitted to a single chip microcomputer for processing.

Description

Technical field [0001] The invention belongs to the technical field of smart sensors, and particularly relates to a reflective photoelectric sensor key system. Background technique [0002] According to the polarization characteristics and reflection principle of light, the polarized reflection type photoelectric sensor uses a reflector to reflect the polarized light generated by the light emitter to the light receiver. When the target object blocks the light sent by the photoelectric sensor to the mirror, it reaches the light receiver. The quantity will be changed and converted into an electrical signal for output, then the target object will be detected. [0003] At present, most of the mirror reflection photoelectric sensors on the market adopt a single output drive mode, NPN drive mode or PNP drive mode, with limited adaptability; some sensors have been selected for NO / NC, but more products are output in the factory When it is directly fixed, it is quite inflexible to use; the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01D5/30
CPCG01D5/30
Inventor 许永童
Owner SHANGHAI LANBAO SENSING TECH
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