Serial modem type data photoelectric conversion device

A technology of modulation and demodulation and photoelectric conversion, applied in the direction of electrical digital data processing, optical fiber transmission, instruments, etc., can solve the problems of no anti-interference ability, inability to increase transmission speed, short transmission distance, etc., and achieve low cost of line laying, Improved transmission reliability and low hardware cost

Active Publication Date: 2015-09-02
NANJING DAQO AUTOMATION TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This document solves the technical problem of short transmission distance, but does not solve the technical problems of poor anti-interference ability and inability to increase transmission speed.

Method used

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  • Serial modem type data photoelectric conversion device
  • Serial modem type data photoelectric conversion device
  • Serial modem type data photoelectric conversion device

Examples

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Embodiment Construction

[0039] figure 1 It is a structural schematic diagram of the RS232 serial port modulation and demodulation device according to the first embodiment of the present invention. see figure 1 , The RS232 serial port modulation and demodulation device includes a receiver module 1 , a modulation module 2 , an electro-optic conversion module 3 , a photoelectric conversion module 4 and a demodulation module 5 .

[0040] The receiver module 1 includes a plurality of MAX232 chips 6 and corresponding optocoupler components 7 connected to the MAX232 chips 6 . The MAX232 chip 6 receives multi-channel RS232 serial port data, and further, the MAX232 chip 6 supports 12-channel RS232 serial port data transmission. Each MAX232 chip supports two-way RS232 serial communication, and a total of 6 MAX232 chips are used. The receiver module 1 realizes receiving multiple RS232 serial port data for communication.

[0041] In order to improve the working reliability of the device, the TTL level signal...

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PUM

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Abstract

Disclosed is a serial modem type data photoelectric conversion device, which includes a receiving end module (1), a modulation end module (2), an electro-optical conversion end module (3), a photoelectric conversion end module (4) and a demodulation end module (5). The receiving end module (1) comprises a plurality of MAX232 chips (6) and corresponding optocoupler members (7) connected with the MAX232 chips (6). The modulation end module (2) comprises a data acquisition member (8) and a data acceleration member (9). The data acceleration member (9) compresses the acquired data by the data acquisition member (8) through data transmission acceleration encoding. The electro-optical conversion end module (3) transmits an optical signal to the photoelectric conversion end module (4) via an optical fiber. The demodulation end module (5) comprises a data decoding member (10) and a data output member (11). The data decoding member (10) decodes and transmits data to the data output member (11). The data output member (11) transmits the data to an RS232 serial port.

Description

technical field [0001] The invention relates to an RS232 communication data receiving and sending device in the industrial field, in particular to an RS232 serial port modulation and demodulation device based on a MAX10 platform capable of long-distance optical fiber communication. Background technique [0002] In the industrial field, RS232 has become a commonly used data transmission standard in the industry. The RS232 serial port can provide full-duplex asynchronous data communication. In the RS232 serial port communication, three wires (RX, TX, GND) are used to send and receive simultaneously, and the efficiency is relatively high. In addition to the above advantages, RS232 serial communication has the following defects. The logic "1" of RS232 level signal is -5--15V; the logic "0" is +5-+15V, and the noise margin is 2V. It is required that the receiver can recognize the signal as low as +3V as logic "0", and the signal as high as -3V as logic "1". Due to its poor common...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04B10/25G06F13/40
Inventor 吴军陈栩李进张官勇逯海军高福春姜红斌吴参林
Owner NANJING DAQO AUTOMATION TECH
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