Photoelectric isolation bidirectional repeater circuit and waterproof repeater

A photoelectric isolation and repeater technology, applied in the direction of electrical components, electromagnetic wave transmission systems, transmission systems, etc., can solve the problems of half-duplex communication that cannot transmit real-time signals, achieve flexible and convenient placement, reduce operating costs, The effect of easy maintenance

Pending Publication Date: 2020-05-01
乐雷光电(中国)有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention is to provide a photoelectric isolation two-way repeater circuit and waterproof repeater, which solves the problem that the half-duplex communication in the field of LED lamps cannot return real-time signals in the prior art

Method used

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  • Photoelectric isolation bidirectional repeater circuit and waterproof repeater
  • Photoelectric isolation bidirectional repeater circuit and waterproof repeater
  • Photoelectric isolation bidirectional repeater circuit and waterproof repeater

Examples

Experimental program
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Effect test

specific Embodiment 1

[0034] Specific embodiment one, such as figure 1 , figure 2 Shown:

[0035] A kind of photoelectric isolation two-way repeater circuit, comprises differential bus transceiver and signal isolation module and MCU control module, and signal isolation module and differential bus transceiver are symmetrically arranged on the two ends of MCU control module, as signal input end and output end, Either end is used as the input end, and the receiving upper layer signal first passes through the signal isolation module and reaches the differential bus transceiver. The differential bus transceiver sends the input signal to the MCU control module, and the MCU control module analyzes the received upper layer signal and judges the signal direction. And send the received signal to the other end of the differential bus transceiver for shaping, restoration, amplification, and then reach the output after passing through the signal isolation module; the signal isolation module includes a transie...

specific Embodiment 2

[0037] Specific embodiment two, such as figure 1 , figure 2 , image 3 Shown:

[0038] The main control circuit of this embodiment is the same as the main control circuit of Embodiment 1, the difference is that it also includes a BUCK step-down module and a DC / DC isolation module, the DC voltage at the input terminal is stepped down by the BUCK step-down module, and then passed through two A separate DC / DC isolation module powers the differential bus transceivers at the input and output respectively. In this embodiment, the DC / DC isolation module includes a photoelectric isolation circuit, through which the input and output differential bus controllers are powered separately, and completely isolated from the signal data.

[0039] In this embodiment, the input terminal of the power supply is connected to a DC voltage of 12-36V, and the required voltage is reached through the BUCK step-down module, and then other modules are powered through the DC / DC isolation module.

[00...

specific Embodiment 3

[0046] Specific embodiment three, such as Figure 4 to Figure 9 Shown:

[0047] A two-way waterproof repeater, including a waterproof screw 1, a left end cover 3, a sealing ring 4, a housing 5, a PCB circuit board 6, and a right end cover 7; wherein, the waterproof screw 1 locks the wires to the left end cover 3 and the right end cover 7, the sealing ring 4 is locked on the housing 5 by the left end cover 3 and the right end cover 7 through the waterproof screw 1, and the PCB circuit board 6 is fixed in the housing 5; the above-mentioned photoelectric isolation bidirectional repeater is provided on the PCB circuit board 6 circuit. The present invention realizes the waterproof of inlet and outlet electric wire position by waterproof screw 1, realizes end cap waterproof by left end cap 3, right end cap 7 and sealing ring 4, has realized integral waterproof structure by above structure, has protected PCB circuit board.

[0048] In this embodiment, the left end cover 3 is the inco...

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Abstract

The invention discloses a photoelectric isolation bidirectional repeater circuit and a waterproof repeater, which are used for prolonging a signal transmission distance, transmitting data on input andoutput physical layers through a differential bus transceiver amplification circuit and completing recovery, shaping and amplification functions of a standard DMX512 signal so as to prolong the signal transmission distance. The signal input direction and the signal output direction are judged through logic control of the MCU main control chip, data receiving, transmitting and reading and data collecting, comparing and outputting of DMX512 signals are completed, and full duplex communication is achieved. The waterproof repeater adopts a shell specially designed for outdoor installation and use, end covers and sealing rings are arranged on the two sides of the waterproof repeater, the PCB is sealed in the shell, and incoming and outgoing line waterproof connectors and waterproof plugs are arranged on the end covers respectively, so that an overall waterproof structure is realized, the IP66 waterproof grade is achieved, and the PCB is protected.

Description

technical field [0001] The invention belongs to the field of signal repeaters of the DMX512 protocol, in particular to a high-performance photoelectric isolation bidirectional repeater circuit and a waterproof repeater for extending the signal transmission distance. Background technique [0002] As an LED dimming control protocol, the DMX512 protocol has the advantages of simplicity, efficiency, and flexibility. [0003] With the popularization of LED lamps, more and more places need to use dimmable LED lamps to achieve some dynamic effects, which makes the DMX512 protocol face more and more points, and the point spacing is getting larger and other problems. [0004] In addition, the new RDM protocol based on DMX512-A requires LED lamps (receiving end) to be converted into sending ends at a certain moment, and some information is sent back to PCs or consoles (sending ends), which makes the original The half-duplex repeater cannot complete the signal return in real time, whi...

Claims

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Application Information

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IPC IPC(8): H04B10/291
Inventor 陆显斌杨超
Owner 乐雷光电(中国)有限公司
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