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Communication interface device for remote meter reading

A communication interface and remote meter reading technology, applied in signal transmission system, electrical signal transmission system, data exchange details, etc., can solve the problems of difficult carrier signal transmission, insufficient environmental pollution of power grid, complicated wiring of civil power grid, etc., and achieve good application Foreground, easy to use, efficient and stable effect

Inactive Publication Date: 2017-12-15
强鹏
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The key to realizing high-quality and efficient remote meter reading communication lies in the analysis and design of the selected modem module and its interface circuit. Due to the complex wiring of the domestic civil power grid and many irregularities, the domestic electrical appliances are not connected to the power grid. Insufficient environmental pollution and other factors make it difficult for the carrier signal to be transmitted well in a power supply area

Method used

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  • Communication interface device for remote meter reading

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Embodiment Construction

[0013] refer to figure 1 As shown, a communication interface device for remote meter reading of the present invention includes a modem chip, a transmission filter, a coupling transformer, a reception filter and a protection circuit, the transmission filter is connected to the reception filter, and the transmission filter and the reception filter Both are connected to the coupling transformer, the protection circuit is respectively connected to the transmission filter and the reception filter, the protection circuit is connected to the coupling transformer, and the modem chip is respectively connected to the transmission filter and the reception filter.

[0014] The transmit filter includes capacitors C1, C2 and C4, and inductors L2 and L3.

[0015] The receive filter includes capacitor C3, inductor L1 and resistor R1.

[0016] The protection circuit includes bidirectional regulators D1 and D2.

[0017] Working principle: The direction of data transmission is controlled by th...

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Abstract

The invention discloses a communication interface device for remote meter reading. The communication interface device comprises a modulator-demodulator chip, a sending filter, a coupling transformer, a receiving filter and a protection circuit. The sending filter is connected with the receiving filter. The sending filter and the receiving filter are connected with the coupling transformer. The protection circuit is connected with the sending filter and the receiving filter. The protection circuit is connected with the coupling transformer. The modulator-demodulator chip is connected with the sending filter and the receiving filter. The communication interface device is reasonable in design, convenient in usage and efficient and reliable in working, the technical problem resulting from remote meter reading transmission is relatively solved, efficient and superior communication is realized, and the communication interface device has a relatively good application prospect.

Description

technical field [0001] The invention particularly relates to a communication interface device for remote meter reading. Background technique [0002] The existing communication method of remote meter reading for information transmission, using remote meter reading for communication, has the advantages of great convenience, maintenance-free, plug-and-play, etc., and is the best communication method preferred by people. The key to realizing high-quality and efficient remote meter reading communication lies in the analysis and design of the selected modem module and its interface circuit. Due to the complex wiring of the domestic civil power grid and many irregularities, the domestic electrical appliances are not connected to the power grid. Insufficient environmental pollution and other factors make it difficult for the carrier signal to be transmitted well in a power supply area. Contents of the invention [0003] The object of the present invention is to provide a communi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L12/02H04L29/08G08C19/00
CPCH04L12/02G08C19/00H04L67/12
Inventor 强鹏
Owner 强鹏