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CN2162746Y - Restitution apparatus for delivering figure carrier with power line - Google Patents

Restitution apparatus for delivering figure carrier with power line Download PDF

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Publication number
CN2162746Y
CN2162746Y CN93213459U CN93213459U CN2162746Y CN 2162746 Y CN2162746 Y CN 2162746Y CN 93213459 U CN93213459 U CN 93213459U CN 93213459 U CN93213459 U CN 93213459U CN 2162746 Y CN2162746 Y CN 2162746Y
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China
Prior art keywords
input
output
circuit
phase comparison
utility
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Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
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CN93213459U
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Chinese (zh)
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王凤阁
娄志仁
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Individual
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Individual
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  • Synchronisation In Digital Transmission Systems (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)

Abstract

The utility model relates to a demodulation device for delivering the figure carrier with power lines, composed of a signal generator 1, a frequency dividing shaper 2, a power amplification circuit 3, a phase comparison demodulation circuit 4, a filtering conversion circuit 5, and an input and output interface 6. The output end of the signal generator 1 is connected with the input end of the frequency dividing shaper 2. The output end of the frequency dividing shaper 2 is connected with the input end of the phase comparison demodulation circuit 4. The output end of the phase comparison demodulation circuit 4 is connected with the input end of the filtering conversion circuit 5 and the control end of the frequency dividing shaper 2. The output end of the filtering conversion circuit 5 is connected with the output end of the input and output interface 6. The input end of the input and output interface 6 is connected with the input end of the power amplification circuit 3. The utility model has the advantages of fast response speed, and strong interference resistance ability. After the utility model is demodulated, the utility model has small digital information distortion. The utility model works for continuous years, and the phenomenon of locking can not appear. The utility model can receive the digital carrier information using power lines to transmit.

Description

Restitution apparatus for delivering figure carrier with power line
Demodulator with power line transmission of digital carrier wave belongs to communication equipment.
The MSK mode is mostly used in existing demodulation, and this mode is strict to the phase relation of waveform and carrier frequency and digital information, and when transmitting on power line, the information error rate that institute's demodulation is come out is big, and poor anti jamming capability is prone to deadlock, can't use.A kind of mode of slope detection that is is arranged again, and this kind way only is applicable to the carrier frequency that frequency is higher, is not suitable for the carrier frequency of this low-frequency range of 3150HZ and 2850HZ, and phase-locked slow, several and just can reach phase-locked purpose to tens cycles.Moreover it is to carry out phase-lockedly with error, also just is far from being phase-lockedly so lose error, promptly can not reach real phase-locked purpose forever.
The purpose of this utility model is to carry out than after mutually with each carrier frequency waveform, export a phase difference and represent the digital information that demodulation is come out, response speed is fast, antijamming capability is strong so the demodulator of designing can reach, digital information distortion after the demodulation is little, can receive the digital carrier information of transmitting with power line.
The utility model is made up of signal generator 1, frequency division reshaper 2, power amplification circuit 3, phase comparison demodulation circuit 4, filtering transformation circuit 5, input/output interface 6.The input of the output termination frequency division reshaper 2 of signal generator 1, the input of the output termination phase comparison demodulation circuit 4 of frequency division reshaper 2, the input of phase comparison demodulation circuit 4 also connects the output of power amplification circuit 3, the output of phase comparison demodulation circuit 4 connects the input of filtering transformation circuit 5 and the control end of frequency division reshaper 2, the output of filtering transformation circuit 5 connects the output of input/output interface 6, the input of the input termination power amplification circuit 3 of input/output interface 6.
Signal generator 1 is by inverter ic 7A, IC7B, crystal oscillator Z 1, C 4, C 5, R 5, R 6Form, the separating of 4MHZ that is produced standard by it called signal.Frequency division reshaper 2 is put several counter IC6, trigger IC3A, inverter ic 7D, IC7C, triode T by giving 1, T 2, R 7～R 11, C 7～C 10, C 19Form.The frequency division multiple of IC6 is by T 2, IC7C, IC7D input signal the high-low level decision, and T 2Input controlled by the output of phase comparison demodulation circuit 4.IC3A, R 11, C 9Form reshaper, with the pulse stretching behind the frequency division to promote T 1T 1And T 2It all is the effect of changing of flatting turn that electrifies.Power amplification circuit 3 is by transformer L 1Integrated transporting discharging IC4B, IC4A, C 2, C 11, C 4, R 1, R 12, R 15Form.This circuit function is that FM signal that the passage that input/output interface 6 is sent here is transmitted is through L 1Coupling is again through C 4, R 12Amplify to IC4B, again with giving phase comparison demodulation circuit 4 after the IC4A shaping.Phase comparison demodulation circuit 4 is made up of frequency divider IC1, XOR gate IC2.The output of the input termination frequency division reshaper 2 of IC1, what this input of IC1 received is reference signal.The output of IC1 is received the input of IC2, the output of another input termination power amplification circuit 3 of IC2.Because of two inputs of IC2 connect reference signal and FM signal respectively, carry out the phase bit comparison by IC2, relatively the phase difference of back generation goes phase-locked input frequency, demodulation frequency again.Filtering transformation circuit 5 is by integrated transporting discharging IC4C, level conversion door IC , R 2～R 4, C 1, C 3, C 12, potentiometer W 1Form.Digital information after the 4 output demodulation of phase comparison demodulation circuit is through R 2, R 3, C 1, C 3The T mode filter of forming carries out filtering, can obtain the approximate digital information waveform of making a start and being sent out, this waveform after the IC4C shaping, has promptly been become and the living digital information of making a start, and this digital information is transformed into the standard 232 messages breath of a positive and negative 12V again through IC5A.Input/output interface 6 is by plug connector 1JC, potentiometer W 2Form.The output of the 1 termination IC5A of 1JC is passed to computer with the standard 232 messages breath of positive and negative 12V, and 2,3 ends are inputs of FM signal, meet the L of power amplification circuit 1
Demodulator response speed of the present utility model is fast, antijamming capability is strong, the digital information distortion after the demodulation is little, and continuous operation the phenomenon that crashes can not occur in several years yet, can receive the information of carrying out the transmission of digital carrier wave with power line.
Fig. 1 is the theory diagram of demodulator.
Fig. 2 is a functional-block diagram of the present utility model.
Fig. 3 is the circuit structure diagram of signal generator 1 and frequency division reshaper 2 in the utility model.
Fig. 4 is the circuit structure diagram of power amplification circuit 3 in the utility model, phase comparison demodulation device 4, filtering transformation circuit 5, input/output interface 6.
Embodiment: present embodiment is made up of signal generator 1, frequency division reshaper 2, power amplification circuit 3, phase comparison demodulation circuit 4, filtering transformation circuit 5, input/output interface 6.The output of signal generator 1 connects the input of frequency division reshaper 2, and the output of frequency division reshaper 2 connects the input of phase comparison demodulation circuit 4, and another input of phase comparison demodulation circuit 4 also connects the output of power amplification circuit 3.The input of the output termination filtering transformation circuit 5 of phase comparison demodulation circuit 4 also meets the control end b of frequency division reshaper 2 simultaneously 3, the output of filtering transformation circuit 5 connects the output of input/output interface 6, the input of the input termination power amplification circuit 3 of input/output interface 6.
Signal generator 1 is by IC7A, IC7B, crystal oscillator Z 1, C 4, C 5, R 5, R 6Form, the separating of 4MHZ of a standard of circuit generation called signal thus, and this signal is given frequency division reshaper 2 and carried out frequency division.The frequency division reshaper is put several counter IC6, trigger IC3A, inverter ic 7C, IC7D, triode T by giving 1, T 2, R 7～R 11, C 7～C 10, C 19Form, IC6 selects 74LS193 for use.The frequency division multiple of IC6 is by T 2, IC7C, IC7D input signal the high-low level decision.T 2During the base stage high level, IC6 is 9 frequency divisions, T 2When base stage was low level, IC6 was 11 frequency divisions, and T 2The signal of base stage is the output of phase comparison demodulation circuit 4.IC3A, R 11, C 9Form reshaper, IC3A selects 74LS123 for use, with the pulse stretching behind the frequency division to promote T 1, T 1And T 2It all is the effect of changing of flatting turn that electrifies.Power amplification circuit 3 is by transformer L 1, integrated transporting discharging IC4B, IC4A, C 2, C 11, C 4, R 1, R 12～R 15Form.Phase comparison demodulation circuit 4 is made up of frequency divider IC1, XOR gate IC2.IC1 selects 4024 for use, and input 1 pin of IC1 meets the output b of frequency division reshaper 2 1What 1 pin of IC1 received is reference signal, output 3 pin of IC1 connect input 1 pin of IC2, and another input 2 pin of IC2 connect the output of power amplification circuit 3, because of IC2 two inputs connect reference signal and FM signal respectively, after the comparison through the IC2 XOR gate, the phase difference of generation goes to control reference signal again.Filtering transformation circuit 5 is by integrated transporting discharging IC4C, level conversion door IC5A, R 2～R 4, C 1, C 3, C 12, potentiometer W 1Form, IC5A selects MC1488 for use.R 2, R 3, C 1, C 3Form a T mode filter, the output of phase comparison demodulation circuit is connected on the R end of T mode filter.Filtered digital information is transformed into the standard 232 messages breath of a positive and negative 12V again through the IC4C shaping through IC5A.Input/output interface 6 is by plug connector IJC, potentiometer W 2Form.3 pin of the termination IC5 of 1JC, the L of 2, the 3 termination power amplification circuits of 1JC 1

Claims (1)

1, demodulator with power line transmission of digital carrier wave, it is by signal generator 1, frequency division reshaper 2, power amplification circuit 3, phase comparison demodulation circuit 4, filtering transformation circuit 5, input/output interface 6 is formed, the input that it is characterized in that the output termination frequency division reshaper 2 of signal generator 1, the input of the output termination phase comparison demodulation circuit 4 of frequency division reshaper 2, the output of phase comparison demodulation circuit 4 connects the input of filtering transformation circuit 5 and the control end of frequency division reshaper 2, the output of the output termination input/output interface 6 of filtering transformation circuit 5, the input of the input termination power amplification circuit 3 of input/output interface 6; Phase comparison demodulation circuit 4 is made up of frequency divider IC1, XOR gate IC2, the output of the input termination frequency division reshaper 2 of IC1, the input of the output termination IC2 of IC1, the output of another input termination power amplification circuit 3 of IC1.
CN93213459U 1993-05-18 1993-05-18 Restitution apparatus for delivering figure carrier with power line Expired - Fee Related CN2162746Y (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN93213459U CN2162746Y (en) 1993-05-18 1993-05-18 Restitution apparatus for delivering figure carrier with power line

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN93213459U CN2162746Y (en) 1993-05-18 1993-05-18 Restitution apparatus for delivering figure carrier with power line

Publications (1)

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CN2162746Y true CN2162746Y (en) 1994-04-20

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CN93213459U Expired - Fee Related CN2162746Y (en) 1993-05-18 1993-05-18 Restitution apparatus for delivering figure carrier with power line

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Cited By (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102111187A (en) * 2010-12-27 2011-06-29 东莞市华业新科电子科技有限公司 Power line carrier communication module
CN105680911A (en) * 2011-12-30 2016-06-15 基岩自动化平台公司 Electromagnetic connector and communications/control system/switch fabric with serial and parallel communications interfaces
US9837205B2 (en) 2011-12-30 2017-12-05 Bedrock Automation Platforms Inc. Electromagnetic connector for an industrial control system
US10613567B2 (en) 2013-08-06 2020-04-07 Bedrock Automation Platforms Inc. Secure power supply for an industrial control system
US10628361B2 (en) 2011-12-30 2020-04-21 Bedrock Automation Platforms Inc. Switch fabric having a serial communications interface and a parallel communications interface
US10824711B2 (en) 2013-08-06 2020-11-03 Bedrock Automation Platforms Inc. Secure industrial control system
US10834094B2 (en) 2013-08-06 2020-11-10 Bedrock Automation Platforms Inc. Operator action authentication in an industrial control system
US10834820B2 (en) 2013-08-06 2020-11-10 Bedrock Automation Platforms Inc. Industrial control system cable
US10848012B2 (en) 2011-12-30 2020-11-24 Bedrock Automation Platforms Inc. Electromagnetic connectors for an industrial control system
US10896145B2 (en) 2011-12-30 2021-01-19 Bedrock Automation Platforms Inc. Communications control system with a serial communications interface and a parallel communications interface
US11055246B2 (en) 2011-12-30 2021-07-06 Bedrock Automation Platforms Inc. Input-output module with multi-channel switching capability
US11144630B2 (en) 2011-12-30 2021-10-12 Bedrock Automation Platforms Inc. Image capture devices for a secure industrial control system
US11314854B2 (en) 2011-12-30 2022-04-26 Bedrock Automation Platforms Inc. Image capture devices for a secure industrial control system
US11967839B2 (en) 2011-12-30 2024-04-23 Analog Devices, Inc. Electromagnetic connector for an industrial control system
US11977622B2 (en) 2013-08-06 2024-05-07 Analog Devices, Inc. Authentication between industrial elements in an industrial control system
US12061685B2 (en) 2011-12-30 2024-08-13 Analog Devices, Inc. Image capture devices for a secure industrial control system
US12120819B2 (en) 2014-07-07 2024-10-15 Analog Devices, Inc. Industrial control system cable

Cited By (33)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102111187A (en) * 2010-12-27 2011-06-29 东莞市华业新科电子科技有限公司 Power line carrier communication module
US10628361B2 (en) 2011-12-30 2020-04-21 Bedrock Automation Platforms Inc. Switch fabric having a serial communications interface and a parallel communications interface
US10896145B2 (en) 2011-12-30 2021-01-19 Bedrock Automation Platforms Inc. Communications control system with a serial communications interface and a parallel communications interface
US12061685B2 (en) 2011-12-30 2024-08-13 Analog Devices, Inc. Image capture devices for a secure industrial control system
US11658519B2 (en) 2011-12-30 2023-05-23 Bedrock Automation Platforms Inc. Electromagnetic connector for an Industrial Control System
US12019575B2 (en) 2011-12-30 2024-06-25 Analog Devices, Inc. Switch fabric having a serial communications interface and a parallel communications interface
US11967839B2 (en) 2011-12-30 2024-04-23 Analog Devices, Inc. Electromagnetic connector for an industrial control system
US10832861B2 (en) 2011-12-30 2020-11-10 Bedrock Automation Platforms Inc. Electromagnetic connector for an industrial control system
CN105680911A (en) * 2011-12-30 2016-06-15 基岩自动化平台公司 Electromagnetic connector and communications/control system/switch fabric with serial and parallel communications interfaces
US9837205B2 (en) 2011-12-30 2017-12-05 Bedrock Automation Platforms Inc. Electromagnetic connector for an industrial control system
US11966349B2 (en) 2011-12-30 2024-04-23 Analog Devices, Inc. Electromagnetic connector for for an industrial control system
US10848012B2 (en) 2011-12-30 2020-11-24 Bedrock Automation Platforms Inc. Electromagnetic connectors for an industrial control system
US11055246B2 (en) 2011-12-30 2021-07-06 Bedrock Automation Platforms Inc. Input-output module with multi-channel switching capability
US11093427B2 (en) 2011-12-30 2021-08-17 Bedrock Automation Platforms Inc. Switch fabric having a serial communications interface and a parallel communications interface
US11144630B2 (en) 2011-12-30 2021-10-12 Bedrock Automation Platforms Inc. Image capture devices for a secure industrial control system
US11314854B2 (en) 2011-12-30 2022-04-26 Bedrock Automation Platforms Inc. Image capture devices for a secure industrial control system
US11899604B2 (en) 2011-12-30 2024-02-13 Bedrock Automation Platforms Inc. Input/output module with multi-channel switching capability
US11688549B2 (en) 2011-12-30 2023-06-27 Bedrock Automation Platforms Inc. Electromagnetic connector for an industrial control system
US10834820B2 (en) 2013-08-06 2020-11-10 Bedrock Automation Platforms Inc. Industrial control system cable
US10834094B2 (en) 2013-08-06 2020-11-10 Bedrock Automation Platforms Inc. Operator action authentication in an industrial control system
US11700691B2 (en) 2013-08-06 2023-07-11 Bedrock Automation Platforms Inc. Industrial control system cable
US11722495B2 (en) 2013-08-06 2023-08-08 Bedrock Automation Platforms Inc. Operator action authentication in an industrial control system
US11429710B2 (en) 2013-08-06 2022-08-30 Bedrock Automation Platforms, Inc. Secure industrial control system
US11960312B2 (en) 2013-08-06 2024-04-16 Analog Devices, Inc. Secure power supply for an industrial control system
US20210195742A1 (en) 2013-08-06 2021-06-24 Bedrock Automation Platforms Inc. Industrial control system cable
US11537157B2 (en) 2013-08-06 2022-12-27 Bedrock Automation Platforms, Inc. Secure power supply for an industrial control system
US11977622B2 (en) 2013-08-06 2024-05-07 Analog Devices, Inc. Authentication between industrial elements in an industrial control system
US10824711B2 (en) 2013-08-06 2020-11-03 Bedrock Automation Platforms Inc. Secure industrial control system
US12032675B2 (en) 2013-08-06 2024-07-09 Analog Devices, Inc. Secure industrial control system
US10613567B2 (en) 2013-08-06 2020-04-07 Bedrock Automation Platforms Inc. Secure power supply for an industrial control system
US12212577B2 (en) 2013-08-06 2025-01-28 Analog Devices, Inc. Operator action authentication in an industrial control system
US12164621B2 (en) 2013-08-06 2024-12-10 Analog Devices, Inc. Secure industrial control system
US12120819B2 (en) 2014-07-07 2024-10-15 Analog Devices, Inc. Industrial control system cable

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C14 Grant of patent or utility model
GR01 Patent grant
C19 Lapse of patent right due to non-payment of the annual fee
CF01 Termination of patent right due to non-payment of annual fee
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