CN102307245B

CN102307245B - Audio frequency channel data access device

Info

Publication number: CN102307245B
Application number: CN 201110260440
Authority: CN
Inventors: 谢建庭; 宋光伟; 金芮芃; 李柬; 吕前进; 高友; 苏红; 孙光; 刘欣; 苗尧飞; 常涛; 屈小庆
Original assignee: Tianjin Optical Electrical Communication Technology Co Ltd
Current assignee: Tianjin Optical Electrical Communication Technology Co Ltd
Priority date: 2011-09-05
Filing date: 2011-09-05
Publication date: 2013-07-03
Anticipated expiration: 2031-09-05
Also published as: CN102307245A

Abstract

The invention relates to an audio frequency channel data access device. The device comprises an audio line interface module, a simulation signal processing module, a digital signal processing module, a one-chip microcomputer module, a serial port and a net port, wherein the audio line interface module connects with the simulation signal processing module, the simulation signal processing module connects with the digital signal processing module, the digital signal processing module connects with the one-chip microcomputer module, and the one-chip microcomputer module connects with the serial port and the net port. Beneficial effects of the invention are as follows: an audio frequency channel data access problem is solved by utilizing a present communication interface of an audio frequency terminal device, accuracy and reliability of data transmission are raised by utilizing digital communication technology, data exchange with a host computer is realized by utilizing data communication interface technology, thus the host computer can realize data exchange and state control with the far-end audio frequency terminal device. So, the device has strong versatility.

Description

A kind of voice-grade channel data insertion equipment

Technical field

The present invention relates to voice communication and messaging device, relate in particular to a kind of voice-grade channel data insertion equipment.

Background technology

In existing audio communication device, the messaging device, can't carry out Monitoring and Controlling to exchanges data and the state of voice frequency terminal equipment, accuracy and the reliability of transfer of data can't be guaranteed, the simulation long-distance transmissions of digital information can not be realized carrying out with host computer simultaneously.Along with the develop rapidly of the current communication technology, traditional audio communication device, the function of messaging device can not satisfy the demand of modernization development, and therefore, researching and developing a kind of voice-grade channel data insertion equipment just becomes inevitable.

Summary of the invention

Problem in view of above-mentioned prior art exists the invention provides a kind of voice-grade channel data insertion equipment.This equipment utilization voice-grade channel is connected with voice frequency terminal equipment, utilize the analogue audio frequency communication technology and Digital Signal Processing to realize the simulation long-distance transmissions of digital information, utilize digital communication technology to solve accuracy and the reliability of transfer of data, utilize the exchanges data of the realization of data communication interface technology and host computer, thereby make host computer can realize carrying out exchanges data and state control with the voice frequency terminal equipment of far-end.

The technical scheme that the present invention takes is: a kind of voice-grade channel data insertion equipment, it is characterized in that: comprise voice band line interface module, analog module, digital signal processing module, one-chip computer module and serial ports and network interface, wherein, the voice band line interface module is connected with the analog module, the analog module is connected with digital signal processing module, digital signal processing module connects and is connected with one-chip computer module, and one-chip computer module is connected with serial ports and network interface.

The invention has the beneficial effects as follows: utilize voice frequency terminal equipment existing communication interface to solve the voice-grade channel data and insert problem, utilize digital communication technology to improve accuracy and the reliability of transfer of data, utilize the data communication interface technology to realize exchanges data with host computer, thereby make host computer can realize carrying out exchanges data and state control with the voice frequency terminal equipment of far-end.Therefore, this equipment interoperability is strong.

Description of drawings

Fig. 1 is The general frame of the present invention.

Fig. 2 is voice band line interface module electrical schematic diagram, and wherein (A) (B) is receiving unit for sending part.

Fig. 3 receives analog module catenation principle block diagram.

Fig. 4 sends analog module catenation principle block diagram.

Fig. 5 is the reception amplitude equalizer electrical schematic diagram that receives analog first equalizer.

Fig. 6 is the receiving phase equalizer electrical schematic diagram that receives analog first equalizer.

Fig. 7 receives analog power-sensing circuit electrical schematic diagram.

Fig. 8 receives analog amplitude limiter electrical schematic diagram.

Fig. 9 receives the analog first low pass filter electrical schematic diagram.

Figure 10 sends the analog second low pass filter electrical schematic diagram.

Figure 11 sends the analog second equalizer electrical schematic diagram.

Figure 12 is digital signal processing module and one-chip computer module catenation principle block diagram.

Figure 13 is the Digital Signal Processing functional block diagram.

Embodiment

The invention will be further described below in conjunction with accompanying drawing.

With reference to Fig. 1, a kind of voice-grade channel data insertion equipment, it is characterized in that: comprise voice band line interface module, analog module, digital signal processing module, one-chip computer module and serial ports and network interface, wherein, the voice band line interface module is connected with the analog module, the analog module is connected with digital signal processing module, and digital signal processing module connects and is connected with one-chip computer module, and one-chip computer module is connected with serial ports and network interface.

With reference to Fig. 2, the voice band line interface module comprises transmission part and receiving unit, the transmitting terminal that sends part connects an end of resistance R 120, the other end of resistance R 120 connects an end of resistance R 122 and an end of resistance R 121, the other end ground connection of resistance R 122, the other end of resistance R 121 connects 5 pin of transformer T1,1 pin of transformer T1 and 3 pin are ground connection respectively, 6 pin of transformer T1 connect the positive pole of voltage stabilizing didoe V4, the end of gas discharge tube V11 and voice band line send terminal 1, the other end ground connection of gas discharge tube V11, the negative pole of voltage stabilizing didoe V4 connects the negative pole of voltage stabilizing didoe V5, the positive pole of voltage stabilizing didoe V5 connects 10 pin of transformer T1, the end of gas discharge tube V12 and voice band line send terminal 2, the other end ground connection of gas discharge tube V12; 10 pin of the transformer T2 of receiving unit connect the positive pole of voltage stabilizing didoe V7, the end of gas discharge tube V14 and voice band line receive terminal 1, the other end ground connection of gas discharge tube V14, the negative pole of voltage stabilizing didoe V7 connects the negative pole of voltage stabilizing didoe V6, the positive pole of voltage stabilizing didoe V6 connects the end of gas discharge tube V13,6 pin of transformer T2 and voice band line receive terminal 2, the other end ground connection of gas discharge tube V13,3 pin of transformer T2 and 5 pin ground connection, 1 pin of transformer connects an end of resistance R 26, the other end of resistance R 26 connects an end and the receiving terminal of resistance R 28, the other end ground connection of resistance R 28.

With reference to Fig. 3 and Fig. 4, the analog module comprises reception analog module and sends the analog module, receive the analog module and comprise first amplifier, first equalizer, power-sensing circuit, first band pass filter, amplitude limiter and first low pass filter, wherein, first amplifier is connected with first equalizer, first equalizer is connected with first band pass filter, first band pass filter is connected with amplitude limiter and power-sensing circuit respectively, and amplitude limiter is connected with first low pass filter; Send the analog module and comprise second low pass filter, second amplifier, second equalizer, second band pass filter and the 3rd amplifier, wherein, second low pass filter is connected with second amplifier, second amplifier is connected with second equalizer, second equalizer is connected with second band pass filter, and second band pass filter is connected with the 3rd amplifier.

With reference to Fig. 5, receive analog first equalizer and comprise reception amplitude equalizer and receiving phase equalizer, the switch control end 8dB that receives amplitude equalizer connects an end of resistance R 24 and resistance R 26, the other end of R24 connects an end of capacitor C 34 and capacitor C 138, the other end of capacitor C 138 connects the other end of capacitor C 34, the other end of resistance R 26,2 pin of operational amplifier N119, one end of capacitor C 36 and an end of resistance R 21, the other end of resistance R 21 connects an end of resistance R 22, one end of resistance R 18, one end of capacitor C 32 and an end of capacitor C 30, the other end of capacitor C 30 connects the other end of capacitor C 32 and an end of resistance R 16, meet switch control end 2dB behind the other end of the other end connection resistance R 16 of resistance R 18, the other end of resistance R 22 connects the other end of capacitor C 36,6 pin of operational amplifier N119 and an end of resistance R 74,3 pin of operational amplifier N119 connect input IN, 1 pin of operational amplifier N119 connects an end of capacitor C 140,8 pin of the other end concatenation operation amplifier N119 of capacitor C 140, the 7 pin connection+5V voltages of operational amplifier N119, the 4 pin connection-5V voltages of operational amplifier N119, the other end of resistance R 74 connects an end of resistance R 27 and 3 pin of operational amplifier N118, the other end of resistance R 27 connects switch control end AON, one end of resistance R 25 and an end of resistance R 23 meet switch control end 4dB after connecting, the other end of resistance R 23 connects an end of capacitor C 37 and an end of capacitor C 33, the other end of capacitor C 37 connects the other end of resistance R 25,2 pin of operational amplifier N118, one end of capacitor C 35 and an end of resistance R 19, the other end of resistance R 19 connects an end of resistance R 20, one end of resistance R 17, one end of capacitor C 31 and an end of capacitor C 29, the other end of capacitor C 31 connects the other end of capacitor C 29 and an end of resistance R 15, meet switch control end 1 dB behind the other end of the other end connection resistance R 17 of

resistance R

15,1 pin of operational amplifier N118 connects an end of capacitor C 139,8 pin of the other end concatenation operation amplifier N118 of capacitor C 139, the 4 pin connection-5V of operational amplifier N118, the 7 pin connection+5V of operational amplifier N118 meet output OUT behind the other end of the other end connection resistance R 20 of capacitor C 35 and 6 pin of operational amplifier N118.

With reference to Fig. 6, the input IN of receiving phase equalizer connects an end of capacitor C 57 and an end of resistance R 33, the other end of resistance R 33 connects an end of resistance R 28 and 2 pin of operational amplifier N15,6 pin of the other end concatenation operation amplifier N15 of resistance R 28,1 pin of operational amplifier N15 connects an end of capacitor C 62,8 pin of the other end concatenation operation amplifier N15 of capacitor C 62, and the other end of capacitor C 57 connects an end of resistance R 138 and 3 pin of operational amplifier N15, the other end of resistance R 138 connects an end of switch control end J1_1 and resistance R 143, the other end of resistance R 143 connects an end of switch control end J1_2 and resistance R 48, and the other end of resistance R 48 connects switch control end J1_3, the 7 pin connection+5V voltages of operational amplifier N15, the 4 pin connection-5V voltages of operational amplifier N15,3 pin of the 3 pin concatenation operation amplifier N20 of operational amplifier N15 and an end of resistance R 58,6 pin of an end concatenation operation amplifier N15 of resistance R 53 and an end of capacitor C 58,2 pin of the other end concatenation operation amplifier N20 of resistance R 53 and an end of capacitor C 67, the other end of capacitor C 67 connects the other end of resistance R 58 and 6 pin of operational amplifier N20,1 pin of operational amplifier N20 connects an end of capacitor C 72,8 pin of the other end concatenation operation amplifier N20 of capacitor C 72, the 7 pin connection+5V voltages of operational amplifier N20, the 4 pin connection-5V voltages of operational amplifier N20, one end of capacitor C 58 connects an end of resistance R 34, and the other end of resistance R 34 connects an end of resistance R 129 and 2 pin of operational amplifier N16,6 pin of the other end concatenation operation amplifier N16 of resistance R 129,1 pin of operational amplifier N16 connects an end of capacitor C 63,8 pin of the other end concatenation operation amplifier N16 of capacitor C 63, the other end of capacitor C 58 connects an end of resistance R 139 and 3 pin of operational amplifier N16, and the other end of resistance R 139 connects an end and the switch control end J2_1 of resistance R 44, the other end of resistance R 44 connects an end and the switch control end J2_2 of resistance R 149, the other end of resistance R 149 connects switch control end J2_3, the 7 pin connection+5V voltages of operational amplifier N16, the 4 pin connection-5V voltages of operational amplifier N16,3 pin of the 3 pin concatenation operation amplifier N21 of operational amplifier N16 and an end of resistance R 59,6 pin of the other end concatenation operation amplifier N21 of resistance R 59 and the other end of capacitor C 68,1 pin of operational amplifier N21 connects an end of capacitor C 73,8 pin of the other end concatenation operation amplifier N21 of capacitor C 73,6 pin of one end concatenation operation amplifier N16 of resistance R 54 and an end of capacitor C 59,2 pin of operational amplifier N21 connect the other end of resistance R 54 and an end of capacitor C 68, the 7 pin connection+5V voltages of fortune operational amplifier N21, the 4 pin connection-5V voltages of operational amplifier N21, one end of capacitor C 59 connects an end of resistance R 35, the other end of resistance R 35 connects an end of resistance R 130 and 2 pin of operational amplifier N17,6 pin of the other end concatenation operation amplifier N17 of resistance R 130, and 1 pin of operational amplifier N17 connects an end of capacitor C 64,8 pin of operational amplifier N17 connect the other end of capacitor C 64,3 pin of operational amplifier N17 connect the other end of capacitor C 59 and an end of resistance R 140, and the other end of resistance R 140 connects an end and the switch control end J3_1 of resistance R 45, and the other end of resistance R 45 connects an end of resistance R 150 and connects switch control end J3_2, the other end of resistance R 150 connects switch control end J3_3, the 7 pin connection+5V voltages of operational amplifier N17, the 4 pin connection-5V voltages of operational amplifier N17,3 pin of the 3 pin concatenation operation amplifier N22 of operational amplifier N17 and an end of resistance R 60,6 pin of one end concatenation operation amplifier N17 of resistance R 55 and an end of capacitor C 60,2 pin of the other end concatenation operation amplifier N22 of resistance R 55 and an end of capacitor C 69,6 pin of the other end concatenation operation amplifier N22 of resistance R 60 and the other end of capacitor C 69,1 pin of an end concatenation operation amplifier N22 of capacitor C 74,8 pin of the other end concatenation operation amplifier N22 of capacitor C 74, the 7 pin connection+5V voltages of operational amplifier N22, the 4 pin connection-5V voltages of operational amplifier N22, an end of capacitor C 60 connects an end of resistance R 36, the other end of resistance R 36 connects an end of resistance R 131 and 2 pin of operational amplifier N18,6 pin of the other end concatenation operation amplifier N18 of resistance R 131,1 pin of operational amplifier N18 connects an end of capacitor C 65,8 pin of the other end concatenation operation amplifier N18 of capacitor C 65,3 pin of the other end concatenation operation amplifier N18 of capacitor C 60 and an end of resistance R 141, the other end of resistance R 141 connects an end and the switch control end J4_1 of resistance R 146, and the other end of resistance R 146 connects an end and the switch control end J4_2 of resistance R 51, and the other end of resistance R 51 connects switch control end J4_3, the 7 pin connection+5V voltages of operational amplifier N18, the 4 pin connection-5V voltages of operational amplifier N18,3 pin of the 3 pin concatenation operation amplifier N23 of operational amplifier N18 and an end of resistance R 61,6 pin of an end concatenation operation amplifier N18 of resistance R 56 and an end of capacitor C 61,2 pin of the other end concatenation operation amplifier N23 of resistance R 56 and an end of capacitor C 70,6 pin of the other end concatenation operation amplifier N23 of resistance R 61 and the other end of capacitor C 70,1 pin of an end concatenation operation amplifier N23 of capacitor C 75,8 pin of the other end concatenation operation amplifier N23 of capacitor C 75, the 7 pin connection+5V voltages of operational amplifier N23, the 4 pin connection-5V voltages of operational amplifier N23, an end of capacitor C 61 connects an end of resistance R 37, and the other end of resistance R 37 connects an end of resistance R 32 and 2 pin of operational amplifier N19,6 pin of the other end concatenation operation amplifier N19 of resistance R 32,1 pin of operational amplifier N19 connects an end of capacitor C 66,8 pin of the other end concatenation operation amplifier N19 of capacitor C 66, the 7 pin connection+5V voltages of operational amplifier N19, the 4 pin connection-5V voltages of operational amplifier N19,3 pin of the 3 pin concatenation operation amplifier N24 of operational amplifier N19 and an end of resistance R 62,6 pin of an end concatenation operation amplifier N19 of

resistance R

57,2 pin of the other end concatenation operation amplifier N24 of resistance R 57 and an end of capacitor C 71,6 pin of the other end concatenation operation amplifier N24 of resistance R 62 and the other end of capacitor C 71,1 pin of operational amplifier N24 connects an end of capacitor C 76,8 pin of the other end concatenation operation amplifier N24 of capacitor C 76,3 pin of the other end concatenation operation amplifier N18 of capacitor C 61 and an end of resistance R 142, the other end of resistance R 142 connects an end and the switch control end J5_1 of resistance R 147, the other end of resistance R 147 connects an end and the switch control end J5_2 of resistance R 52, and the other end of resistance R 52 connects switch control end J5_3, the 7 pin connection+5V voltages of operational amplifier N24, the 4 pin connection-5V voltages of operational amplifier N24,6 pin of operational amplifier N19 connect output OUT.

Receive the analog module and send the analog module first amplifier, second amplifier and the 3rd amplifier and and the circuit of first band pass filter and the second band pass filter device be universal circuit, do not repeat them here.

With reference to Fig. 7, the input IN that receives the analog power-sensing circuit connects an end of resistance R 67,2 pin of the other end concatenation operation amplifier N219 of resistance R 67,2 pin of operational amplifier N219 connect an end of capacitor C 101 and 1 pin of slide rheostat R65,3 pin of slide rheostat R65 connect 2 pin of slide rheostat R65,6 pin of the 2 pin concatenation operation amplifier N219 of slide rheostat R65 and the other end of capacitor C 101,6 pin of operational amplifier N219 connect an end of resistance R 155,3 pin of operational amplifier N219 connect an end of resistance R 68, the other end ground connection of resistance R 68, the 7 pin connection+5V voltages of operational amplifier N219, the 4 pin connection-5V voltages of operational amplifier N219,2 pin of the other end concatenation operation amplifier N13 of resistance R 155,2 pin of operational amplifier N13 connect the positive pole of diode V8, one end of resistance R 152 and an end of capacitor C 173,6 pin of operational amplifier N13 connect the negative pole of diode V8 and the positive pole of diode V9, the other end of resistance R 152 connects the other end of capacitor C 173 and the negative pole of diode V9, the 3 pin ground connection of operational amplifier N13, the 7 pin connection+5V voltages of operational amplifier N13, the 4 pin connection-5V voltages of operational amplifier N13, the negative pole of diode V9 connects an end of resistance R 156 and an end of capacitor C 175, the other end ground connection of the other end of resistance R 156 and capacitor C 175, one end of capacitor C 175 connects 3 pin of comparator N14,2 pin of comparator N14 connect an end of resistance R 153 and an end of resistance R 154, the other end ground connection of resistance R 153, resistance R 154 other end connection+1.2V voltages, the 7 pin connection+5V voltages of comparator N14, the 4 pin ground connection of comparator N14,5 pin of comparator N14 connect an end of resistance R 157, other end connection+5V the voltage of resistance R 157, meet output OUT, the other end ground connection of capacitor C 89 behind one end of the 6 pin connection capacitor C 89 of comparator N14.

With reference to Fig. 8, the input IN that receives the analog amplitude limiter connects an end of resistance R 38, the other end of resistance R 38 connects an end of resistance R 29,2 pin of operational amplifier N8 and an end of capacitor C 40,6 pin of the other end concatenation operation amplifier N8 of resistance R 29 and the other end of capacitor C 40,3 pin of operational amplifier N8 connect an end of resistance R 41, the other end ground connection of resistance R 41, the 7 pin connection+5V voltages of operational amplifier N8, the 4 pin connection-5V voltages of operational amplifier N8,6 pin of operational amplifier N8 connect an end of capacitor C 44, the other end of capacitor C 44 connects an end of resistance R 42 and 3 pin of operational amplifier N9, the other end ground connection of resistance R 42,2 pin of operational amplifier N9 connect an end of resistance R 39, one end of resistance R 30 and an end of capacitor C 38, the other end ground connection of resistance R 39, the other end of resistance R 30 connects the other end of capacitor C 38 and 6 pin of operational amplifier N9, the 7 pin connection+5V voltages of operational amplifier N9, the 4 pin connection-5V voltages of operational amplifier N9,6 pin of operational amplifier N9 connect an end of capacitor C 43, the other end of capacitor C 43 connects an end of resistance R 40,2 pin of the other end concatenation operation amplifier N10 of resistance R 40, one end of resistance R 31 and an end of capacitor C 39, meet output OUT behind the other end of the other end connection capacitor C 39 of resistance R 31 and 6 pin of operational amplifier N10,3 pin of operational amplifier N10 connect an end of resistance R 43, the other end ground connection of resistance R 43, the 7 pin connection+5V voltages of operational amplifier N10, the 4 pin connection-5V voltages of operational amplifier N10.

With reference to Fig. 9, the input IN that receives analog first low pass filter connects an end of resistance R 49, the other end of resistance R 49 connects an end of resistance R 50 and an end of capacitor C 53,6 pin of the other end concatenation operation amplifier N12 of capacitor C 53, the other end of resistance R 50 connects an end of capacitor C 49 and 3 pin of operational amplifier N12, the other end ground connection of capacitor C 49,1 pin of operational amplifier N12 connects an end of

capacitor C

51,8 pin of the other end concatenation operation amplifier N12 of

capacitor C

51,6 pin of the 2 pin concatenation operation amplifier N12 of operational amplifier N12, the 7 pin connection+5V voltages of operational amplifier N12, the 4 pin connection-5V voltages of operational amplifier N12,6 pin of operational amplifier N12 connect an end of resistance R 46, the other end of resistance R 46 connects an end of resistance R 47 and an end of capacitor C 52,6 pin of the other end concatenation operation amplifier N11 of capacitor C 52, the other end of resistance R 47 connects an end of capacitor C 48 and 3 pin of operational amplifier N11, the other end ground connection of capacitor C 48,3 pin of the other end concatenation operation amplifier N11 of resistance R 47,1 pin of operational amplifier N11 connects an end of

capacitor C

50,8 pin of the other end concatenation operation amplifier N11 of capacitor C 50, meet output OUT behind 6 pin of the 2 pin concatenation operation amplifier N11 of operational amplifier N11, the 7 pin connection+5V voltages of operational amplifier N11, the 4 pin connection-5V voltages of operational amplifier N11.

With reference to Figure 10, the input IN that sends analog second low pass filter connects an end of resistance R 208, the other end of resistance R 208 connects an end of resistance R 209 and an end of capacitor C 16, the other end of capacitor C 16 connects 6 pin of N202, the other end of resistance R 209 connects an end of capacitor C 211 and 3 pin of operational amplifier N202, the other end ground connection of capacitor C 211,1 pin of operational amplifier N202 connects an end of capacitor C 13,8 pin of the other end concatenation operation amplifier N202 of capacitor C 13,6 pin of the 2 pin concatenation operation amplifier N202 of operational amplifier N202 and an end of resistance R 206, the 7 pin connection+5V voltages of operational amplifier N202, the 4 pin connection-5V voltages of operational amplifier N202, the other end of resistance R 206 connects an end of resistance R 207 and an end of

capacitor C

15,6 pin of the other end concatenation operation amplifier N201 of capacitor C 15, the other end of resistance R 207 connects an end of capacitor C 210 and 3 pin of operational amplifier N201, the other end ground connection of capacitor C 210,1 pin of operational amplifier N201 connects an end of capacitor C 212,8 pin of the other end concatenation operation amplifier N201 of capacitor C 212, meet output OUT behind 6 pin of the 2 pin concatenation operation amplifier N201 of operational amplifier N201, the 7 pin connection+5V voltages of operational amplifier N201, the 4 pin connection-5V voltages of operational amplifier N201.

With reference to Figure 11, send 3 pin of the input IN concatenation operation amplifier N2 of analog second equalizer, 1 pin of operational amplifier N2 connects an end of capacitor C 12,8 pin of the other end concatenation operation amplifier N2 of capacitor C 12,2 pin of operational amplifier N2 connect an end of resistance R 12, one end of capacitor C 10 and an end of capacitor C 6, the other end of capacitor C 10 connects the other end of capacitor C 6 and an end of resistance R 10, meet switch control end 8dB behind the other end of the other end connection resistance R 12 of resistance R 10, the other end of operational amplifier N2 connects an end of capacitor C 8 and an end of resistance R 7, the other end of resistance R 7 connects an end of resistance R 8, one end of resistance R 4, one end of capacitor C 4 and an end of capacitor C 2, the other end of resistance R 8 connects the other end of

capacitor C

8 and 6 pin of operational amplifier N2, the other end of capacitor C 4 connects the other end of capacitor C 2 and an end of resistance R 2, meet switch control end 2dB behind the other end of the other end connection resistance R 4 of resistance R 2, the 7 pin connection+5V voltages of operational amplifier N2, the 4 pin connection-5V voltages of operational amplifier N2,6 pin of operational amplifier N2 connect an end of resistance R 73, the other end of resistance R 73 connects an end of resistance R 13, one end of resistance R 14 and 3 pin of operational amplifier N1, the other end ground connection of resistance R 13, the other end of resistance R 14 connects switch control end AON, 1 pin of operational amplifier N1 connects an end of capacitor C 11,8 pin of the other end concatenation operation amplifier N1 of capacitor C 11, switch control end 4dB connects an end of resistance R 11 and an end of resistance R 9, the other end of resistance R 9 connects an end of capacitor C 9 and an end of capacitor C 5, the other end of resistance R 11 connects the other end of capacitor C 9 and the other end of

capacitor C

5,2 pin of the other end concatenation operation amplifier N1 of capacitor C 9, one end of capacitor C 7 and an end of resistance R 5, the other end of resistance R 5 connects an end of resistance R 6, one end of resistance R 3, one end of capacitor C 3 and an end of capacitor C 1, the other end of capacitor C 3 connects the other end of capacitor C 1 and an end of resistance R 1, meet switch control end 1dB behind the other end of the other end connection resistance R 3 of resistance R 1, meet output OUT behind the other end of the other end connection resistance R 6 of

capacitor C

7 and 6 pin of operational amplifier N1, the 7 pin connection+5V voltages of operational amplifier N1, the 4 pin connection-5V voltages of operational amplifier N1.

With reference to Figure 12, digital signal processing module comprises digital signal processing chip, modulus conversion chip, analog-digital chip and first memory; Described one-chip computer module comprises single-chip microcomputer, second memory, serial port chip, network interface chip; Modulus conversion chip, analog-digital chip and first memory are connected with digital signal processing chip respectively, digital signal processing chip is connected with single-chip microcomputer, single-chip microcomputer is connected with second memory, and single-chip microcomputer is connected with network interface with serial ports by serial port chip, network interface chip respectively.

Modulus conversion chip adopts the AD7892 chip, and analog-digital chip adopts the AD5340 chip, and digital signal processing chip adopts on-site programmable gate array FPGA to realize that model is XC3S500E, and the single-chip microcomputer model is AT91SAM7X256; The serial port chip model is MAX3237; The network interface chip is DP83848.

The digital-to-analogue conversion interface module is finished the control of ADC chip, the analog signal that ADC is gathered in the digital signal automatic gain control control that gains, then through demodulation, decode, tear open frame data are delivered to the single chip communication module, the data that the single chip communication module is sent here are through framing, coding, modulation, send through analog-to-digital conversion module then, the analog-to-digital conversion interface module is responsible for the control of DAC, and concrete function is seen Figure 13.

The voice band line interface is sent into the analog module with the signal that receives through conversion, and convert the signal that sends to the voice band line signal, the analog module with signal amplify, processing such as filtering, amplitude and phase compensation, digital signal processing module is modulated, demodulation, coding, decoding, framing, is sent to one-chip computer module after tearing processing such as frame open signal, one-chip computer module is judged receiving data, and is converted serial data and network interface data to by serial port chip, network interface chip.The specific procedure step is as follows:

(A) whether receive data from network interface, it is legal to handle judgment data, if legal, then sends to inner serial ports;

(B) serial ports is received data internally, and whether handle judgment data legal, if legal, sends to outside serial ports;

(C) receive data from outside serial ports, whether if not the network parameter order is set, it is legal then to handle judgment data, if legal, sends to inner serial ports;

(D) receive data from outside serial ports, judge whether to the order of network parameter is set, if the order of network parameter is set, by serial ports output prompting is set, carry out the setting of network parameter according to prompting.

Claims

1. voice-grade channel data insertion equipment, it is characterized in that: comprise voice band line interface module, analog module, digital signal processing module, one-chip computer module and serial ports and network interface, wherein, the voice band line interface module is connected with the analog module, the analog module is connected with digital signal processing module, digital signal processing module connects and is connected with one-chip computer module, and one-chip computer module is connected with serial ports and network interface; Described voice band line interface module comprises transmission part and receiving unit, the transmitting terminal that sends part connects an end of resistance R 120, the other end of resistance R 120 connects an end of resistance R 122 and an end of resistance R 121, the other end ground connection of resistance R 122, the other end of resistance R 121 connects 5 pin of transformer T1,1 pin of transformer T1 and 3 pin are ground connection respectively, 6 pin of transformer T1 connect the positive pole of voltage stabilizing didoe V4, the end of gas discharge tube V11 and voice band line send terminal 1, the other end ground connection of gas discharge tube V11, the negative pole of voltage stabilizing didoe V4 connects the negative pole of voltage stabilizing didoe V5, the positive pole of voltage stabilizing didoe V5 connects 10 pin of transformer T1, the end of gas discharge tube V12 and voice band line send terminal 2, the other end ground connection of gas discharge tube V12; 10 pin of the transformer T2 of receiving unit connect the positive pole of voltage stabilizing didoe V7, the end of gas discharge tube V14 and voice band line receive terminal 1, the other end ground connection of gas discharge tube V14, the negative pole of voltage stabilizing didoe V7 connects the negative pole of voltage stabilizing didoe V6, the positive pole of voltage stabilizing didoe V6 connects the end of gas discharge tube V13,6 pin of transformer T2 and voice band line receive terminal 2, the other end ground connection of gas discharge tube V13,3 pin of transformer T2 and 5 pin ground connection, 1 pin of transformer connects an end of resistance R 126, the other end of resistance R 126 connects an end and the receiving terminal of resistance R 128, the other end ground connection of resistance R 128.

2. a kind of voice-grade channel data insertion equipment as claimed in claim 1, it is characterized in that: described analog module comprises reception analog module and sends the analog module, receive the analog module and comprise first amplifier, first equalizer, power-sensing circuit, first band pass filter, amplitude limiter and first low pass filter, wherein, first amplifier is connected with first equalizer, first equalizer is connected with first band pass filter, first band pass filter is connected with amplitude limiter and power-sensing circuit respectively, and amplitude limiter is connected with first low pass filter; Send the analog module and comprise second low pass filter, second amplifier, second equalizer, second band pass filter and the 3rd amplifier, wherein, second low pass filter is connected with second amplifier, second amplifier is connected with second equalizer, second equalizer is connected with second band pass filter, and second band pass filter is connected with the 3rd amplifier.

3. a kind of voice-grade channel data insertion equipment as claimed in claim 2, it is characterized in that: described first equalizer comprises reception amplitude equalizer and receiving phase equalizer, the switch control end 8dB that receives amplitude equalizer connects an end of resistance R 24 and resistance R 26, the other end of R24 connects an end of capacitor C 34 and capacitor C 138, the other end of capacitor C 138 connects the other end of capacitor C 34, the other end of resistance R 26,2 pin of operational amplifier N119, one end of capacitor C 36 and an end of resistance R 21, the other end of resistance R 21 connects an end of resistance R 22, one end of resistance R 18, one end of capacitor C 32 and an end of capacitor C 30, the other end of capacitor C 30 connects the other end of capacitor C 32 and an end of resistance R 16, meet switch control end 2dB behind the other end of the other end connection resistance R 16 of resistance R 18, the other end of resistance R 22 connects the other end of capacitor C 36,6 pin of operational amplifier N119 and an end of resistance R 74,3 pin of operational amplifier N119 connect input IN, 1 pin of operational amplifier N119 connects an end of capacitor C 140,8 pin of the other end concatenation operation amplifier N119 of capacitor C 140, the 7 pin connection+5V voltages of operational amplifier N119, the 4 pin connection-5V voltages of operational amplifier N119, the other end of resistance R 74 connects an end of resistance R 27 and 3 pin of operational amplifier N118, the other end of resistance R 27 connects switch control end AON, one end of resistance R 25 and an end of resistance R 23 meet switch control end 4dB after connecting, the other end of resistance R 23 connects an end of capacitor C 37 and an end of capacitor C 33, the other end of capacitor C 37 connects the other end of resistance R 25,2 pin of operational amplifier N118, one end of capacitor C 35 and an end of resistance R 19, the other end of resistance R 19 connects an end of resistance R 20, one end of resistance R 17, one end of capacitor C 31 and an end of capacitor C 29, the other end of capacitor C 31 connects the other end of capacitor C 29 and an end of resistance R 15, meet switch control end 1 dB behind the other end of the other end connection resistance R 17 of resistance R 15,1 pin of operational amplifier N118 connects an end of capacitor C 139,8 pin of the other end concatenation operation amplifier N118 of capacitor C 139, the 4 pin connection-5V of operational amplifier N118, the 7 pin connection+5V of operational amplifier N118 meet output OUT behind the other end of the other end connection resistance R 20 of capacitor C 35 and 6 pin of operational amplifier N118; The input IN of described receiving phase equalizer connects an end of capacitor C 57 and an end of resistance R 33, the other end of resistance R 33 connects an end of resistance R 28 and 2 pin of operational amplifier N15,6 pin of the other end concatenation operation amplifier N15 of resistance R 28,1 pin of operational amplifier N15 connects an end of capacitor C 62,8 pin of the other end concatenation operation amplifier N15 of capacitor C 62, the other end of capacitor C 57 connects an end of resistance R 138 and 3 pin of operational amplifier N15, and the other end of resistance R 138 connects an end of switch control end J1_1 and resistance R 143, and the other end of resistance R 143 connects an end of switch control end J1_2 and resistance R 48, the other end of resistance R 48 connects switch control end J1_3, the 7 pin connection+5V voltages of operational amplifier N15, the 4 pin connection-5V voltages of operational amplifier N15,3 pin of the 3 pin concatenation operation amplifier N20 of operational amplifier N15 and an end of resistance R 58,6 pin of one end concatenation operation amplifier N15 of resistance R 53 and an end of capacitor C 58,2 pin of the other end concatenation operation amplifier N20 of resistance R 53 and an end of capacitor C 67, the other end of capacitor C 67 connects the other end of resistance R 58 and 6 pin of operational amplifier N20, and 1 pin of operational amplifier N20 connects an end of capacitor C 72,8 pin of the other end concatenation operation amplifier N20 of capacitor C 72, the 7 pin connection+5V voltages of operational amplifier N20, the 4 pin connection-5V voltages of operational amplifier N20, an end of capacitor C 58 connects an end of resistance R 34, the other end of resistance R 34 connects an end of resistance R 129 and 2 pin of operational amplifier N16,6 pin of the other end concatenation operation amplifier N16 of resistance R 129,1 pin of operational amplifier N16 connects an end of capacitor C 63,8 pin of the other end concatenation operation amplifier N16 of capacitor C 63, the other end of capacitor C 58 connects an end of resistance R 139 and 3 pin of operational amplifier N16, the other end of resistance R 139 connects an end and the switch control end J2_1 of resistance R 44, and the other end of resistance R 44 connects an end and the switch control end J2_2 of resistance R 149, and the other end of resistance R 149 connects switch control end J2_3, the 7 pin connection+5V voltages of operational amplifier N16, the 4 pin connection-5V voltages of operational amplifier N16,3 pin of the 3 pin concatenation operation amplifier N21 of operational amplifier N16 and an end of resistance R 59,6 pin of the other end concatenation operation amplifier N21 of resistance R 59 and the other end of capacitor C 68,1 pin of operational amplifier N21 connects an end of capacitor C 73,8 pin of the other end concatenation operation amplifier N21 of capacitor C 73,6 pin of an end concatenation operation amplifier N16 of resistance R 54 and an end of capacitor C 59,2 pin of operational amplifier N21 connect the other end of resistance R 54 and an end of capacitor C 68, the 7 pin connection+5V voltages of fortune operational amplifier N21, the 4 pin connection-5V voltages of operational amplifier N21, an end of capacitor C 59 connects an end of resistance R 35, and the other end of resistance R 35 connects an end of resistance R 130 and 2 pin of operational amplifier N17,6 pin of the other end concatenation operation amplifier N17 of resistance R 130,1 pin of operational amplifier N17 connects an end of capacitor C 64, and 8 pin of operational amplifier N17 connect the other end of capacitor C 64, and 3 pin of operational amplifier N17 connect the other end of capacitor C 59 and an end of resistance R 140, the other end of resistance R 140 connects an end and the switch control end J3_1 of resistance R 45, the other end of resistance R 45 connects an end of resistance R 150 and connects switch control end J3_2, and the other end of resistance R 150 connects switch control end J3_3, the 7 pin connection+5V voltages of operational amplifier N17, the 4 pin connection-5V voltages of operational amplifier N17,3 pin of the 3 pin concatenation operation amplifier N22 of operational amplifier N17 and an end of resistance R 60,6 pin of an end concatenation operation amplifier N17 of resistance R 55 and an end of capacitor C 60,2 pin of the other end concatenation operation amplifier N22 of resistance R 55 and an end of capacitor C 69,6 pin of the other end concatenation operation amplifier N22 of resistance R 60 and the other end of capacitor C 69,1 pin of one end concatenation operation amplifier N22 of capacitor C 74,8 pin of the other end concatenation operation amplifier N22 of capacitor C 74, the 7 pin connection+5V voltages of operational amplifier N22, the 4 pin connection-5V voltages of operational amplifier N22, one end of capacitor C 60 connects an end of resistance R 36, and the other end of resistance R 36 connects an end of resistance R 131 and 2 pin of operational amplifier N18,6 pin of the other end concatenation operation amplifier N18 of resistance R 131,1 pin of operational amplifier N18 connects an end of capacitor C 65,8 pin of the other end concatenation operation amplifier N18 of capacitor C 65,3 pin of the other end concatenation operation amplifier N18 of capacitor C 60 and an end of resistance R 141, the other end of resistance R 141 connects an end and the switch control end J4_1 of resistance R 146, the other end of resistance R 146 connects an end and the switch control end J4_2 of resistance R 51, the other end of resistance R 51 connects switch control end J4_3, the 7 pin connection+5V voltages of operational amplifier N18, the 4 pin connection-5V voltages of operational amplifier N18,3 pin of the 3 pin concatenation operation amplifier N23 of operational amplifier N18 and an end of resistance R 61,6 pin of one end concatenation operation amplifier N18 of resistance R 56 and an end of capacitor C 61,2 pin of the other end concatenation operation amplifier N23 of resistance R 56 and an end of capacitor C 70,6 pin of the other end concatenation operation amplifier N23 of resistance R 61 and the other end of capacitor C 70,1 pin of one end concatenation operation amplifier N23 of capacitor C 75,8 pin of the other end concatenation operation amplifier N23 of capacitor C 75, the 7 pin connection+5V voltages of operational amplifier N23, the 4 pin connection-5V voltages of operational amplifier N23, one end of capacitor C 61 connects an end of resistance R 37, the other end of resistance R 37 connects an end of resistance R 32 and 2 pin of operational amplifier N19,6 pin of the other end concatenation operation amplifier N19 of resistance R 32, and 1 pin of operational amplifier N19 connects an end of capacitor C 66,8 pin of the other end concatenation operation amplifier N19 of capacitor C 66, the 7 pin connection+5V voltages of operational amplifier N19, the 4 pin connection-5V voltages of operational amplifier N19,3 pin of the 3 pin concatenation operation amplifier N24 of operational amplifier N19 and an end of resistance R 62,6 pin of one end concatenation operation amplifier N19 of resistance R 57,2 pin of the other end concatenation operation amplifier N24 of resistance R 57 and an end of capacitor C 71,6 pin of the other end concatenation operation amplifier N24 of resistance R 62 and the other end of capacitor C 71,1 pin of operational amplifier N24 connects an end of capacitor C 76,8 pin of the other end concatenation operation amplifier N24 of capacitor C 76,3 pin of the other end concatenation operation amplifier N18 of capacitor C 61 and an end of resistance R 142, the other end of resistance R 142 connects an end and the switch control end J5_1 of resistance R 147, and the other end of resistance R 147 connects an end and the switch control end J5_2 of resistance R 52, the other end of resistance R 52 connects switch control end J5_3, the 7 pin connection+5V voltages of operational amplifier N24, the 4 pin connection-5V voltages of operational amplifier N24,6 pin of operational amplifier N19 connect output OUT.

4. a kind of voice-grade channel data insertion equipment as claimed in claim 2, it is characterized in that: the input IN of described power-sensing circuit connects an end of resistance R 67,2 pin of the other end concatenation operation amplifier N219 of resistance R 67,2 pin of operational amplifier N219 connect an end of capacitor C 101 and 1 pin of slide rheostat R65,3 pin of slide rheostat R65 connect 2 pin of slide rheostat R65,6 pin of the 2 pin concatenation operation amplifier N219 of slide rheostat R65 and the other end of capacitor C 101,6 pin of operational amplifier N219 connect an end of resistance R 155,3 pin of operational amplifier N219 connect an end of resistance R 68, the other end ground connection of resistance R 68, the 7 pin connection+5V voltages of operational amplifier N219, the 4 pin connection-5V voltages of operational amplifier N219,2 pin of the other end concatenation operation amplifier N13 of resistance R 155,2 pin of operational amplifier N13 connect the positive pole of diode V8, one end of resistance R 152 and an end of capacitor C 173,6 pin of operational amplifier N13 connect the negative pole of diode V8 and the positive pole of diode V9, the other end of resistance R 152 connects the other end of capacitor C 173 and the negative pole of diode V9, the 3 pin ground connection of operational amplifier N13, the 7 pin connection+5V voltages of operational amplifier N13, the 4 pin connection-5V voltages of operational amplifier N13, the negative pole of diode V9 connects an end of resistance R 156 and an end of capacitor C 175, the other end ground connection of the other end of resistance R 156 and capacitor C 175, one end of capacitor C 175 connects 3 pin of comparator N14,2 pin of comparator N14 connect an end of resistance R 153 and an end of resistance R 154, the other end ground connection of resistance R 153, resistance R 154 other end connection+1.2V voltages, the 7 pin connection+5V voltages of comparator N14, the 4 pin ground connection of comparator N14,5 pin of comparator N14 connect an end of resistance R 157, other end connection+5V the voltage of resistance R 157, meet output OUT, the other end ground connection of capacitor C 89 behind one end of the 6 pin connection capacitor C 89 of comparator N14.

5. a kind of voice-grade channel data insertion equipment as claimed in claim 2, it is characterized in that: the input IN of described amplitude limiter connects an end of resistance R 38, the other end of resistance R 38 connects an end of resistance R 29,2 pin of operational amplifier N8 and an end of capacitor C 40,6 pin of the other end concatenation operation amplifier N8 of resistance R 29 and the other end of capacitor C 40,3 pin of operational amplifier N8 connect an end of resistance R 41, the other end ground connection of resistance R 41, the 7 pin connection+5V voltages of operational amplifier N8, the 4 pin connection-5V voltages of operational amplifier N8,6 pin of operational amplifier N8 connect an end of capacitor C 44, the other end of capacitor C 44 connects an end of resistance R 42 and 3 pin of operational amplifier N9, the other end ground connection of resistance R 42,2 pin of operational amplifier N9 connect an end of resistance R 39, one end of resistance R 30 and an end of capacitor C 38, the other end ground connection of resistance R 39, the other end of resistance R 30 connects the other end of capacitor C 38 and 6 pin of operational amplifier N9, the 7 pin connection+5V voltages of operational amplifier N9, the 4 pin connection-5V voltages of operational amplifier N9,6 pin of operational amplifier N9 connect an end of capacitor C 43, the other end of capacitor C 43 connects an end of resistance R 40,2 pin of the other end concatenation operation amplifier N10 of resistance R 40, one end of resistance R 31 and an end of capacitor C 39, meet output OUT behind the other end of the other end connection capacitor C 39 of resistance R 31 and 6 pin of operational amplifier N10,3 pin of operational amplifier N10 connect an end of resistance R 43, the other end ground connection of resistance R 43, the 7 pin connection+5V voltages of operational amplifier N10, the 4 pin connection-5V voltages of operational amplifier N10.

6. a kind of voice-grade channel data insertion equipment as claimed in claim 2, it is characterized in that: the input IN of described first low pass filter connects an end of resistance R 49, the other end of resistance R 49 connects an end of resistance R 50 and an end of capacitor C 53,6 pin of the other end concatenation operation amplifier N12 of capacitor C 53, the other end of resistance R 50 connects an end of capacitor C 49 and 3 pin of operational amplifier N12, the other end ground connection of capacitor C 49,1 pin of operational amplifier N12 connects an end of capacitor C 51,8 pin of the other end concatenation operation amplifier N12 of capacitor C 51,6 pin of the 2 pin concatenation operation amplifier N12 of operational amplifier N12, the 7 pin connection+5V voltages of operational amplifier N12, the 4 pin connection-5V voltages of operational amplifier N12,6 pin of operational amplifier N12 connect an end of resistance R 46, the other end of resistance R 46 connects an end of resistance R 47 and an end of capacitor C 52,6 pin of the other end concatenation operation amplifier N11 of capacitor C 52, the other end of resistance R 47 connects an end of capacitor C 48 and 3 pin of operational amplifier N11, the other end ground connection of capacitor C 48,3 pin of the other end concatenation operation amplifier N11 of resistance R 47,1 pin of operational amplifier N11 connects an end of capacitor C 50,8 pin of the other end concatenation operation amplifier N11 of capacitor C 50, meet output OUT behind 6 pin of the 2 pin concatenation operation amplifier N11 of operational amplifier N11, the 7 pin connection+5V voltages of operational amplifier N11, the 4 pin connection-5V voltages of operational amplifier N11.

7. a kind of voice-grade channel data insertion equipment as claimed in claim 2, it is characterized in that: the input IN of described second low pass filter connects an end of resistance R 208, the other end of resistance R 208 connects an end of resistance R 209 and an end of capacitor C 16, the other end of capacitor C 16 connects 6 pin of N202, the other end of resistance R 209 connects an end of capacitor C 211 and 3 pin of operational amplifier N202, the other end ground connection of capacitor C 211,1 pin of operational amplifier N202 connects an end of capacitor C 13,8 pin of the other end concatenation operation amplifier N202 of capacitor C 13,6 pin of the 2 pin concatenation operation amplifier N202 of operational amplifier N202 and an end of resistance R 206, the 7 pin connection+5V voltages of operational amplifier N202, the 4 pin connection-5V voltages of operational amplifier N202, the other end of resistance R 206 connects an end of resistance R 207 and an end of capacitor C 15,6 pin of the other end concatenation operation amplifier N201 of capacitor C 15, the other end of resistance R 207 connects an end of capacitor C 210 and 3 pin of operational amplifier N201, the other end ground connection of capacitor C 210,1 pin of operational amplifier N201 connects an end of capacitor C 212,8 pin of the other end concatenation operation amplifier N201 of capacitor C 212, meet output OUT behind 6 pin of the 2 pin concatenation operation amplifier N201 of operational amplifier N201, the 7 pin connection+5V voltages of operational amplifier N201, the 4 pin connection-5V voltages of operational amplifier N201.

8. a kind of voice-grade channel data insertion equipment as claimed in claim 2, it is characterized in that: 3 pin of the input IN concatenation operation amplifier N2 of described second equalizer, 1 pin of operational amplifier N2 connects an end of capacitor C 12,8 pin of the other end concatenation operation amplifier N2 of capacitor C 12,2 pin of operational amplifier N2 connect an end of resistance R 12, one end of capacitor C 10 and an end of capacitor C 6, the other end of capacitor C 10 connects the other end of capacitor C 6 and an end of resistance R 10, meet 8dB behind the other end of the other end connection resistance R 12 of resistance R 10, the other end of operational amplifier N2 connects an end of capacitor C 8 and an end of resistance R 7, the other end of resistance R 7 connects an end of resistance R 8, one end of resistance R 4, one end of capacitor C 4 and an end of capacitor C 2, the other end of resistance R 8 connects the other end of capacitor C 8 and 6 pin of operational amplifier N2, the other end of capacitor C 4 connects the other end of capacitor C 2 and an end of resistance R 2, meet switch control end 2dB behind the other end of the other end connection resistance R 4 of resistance R 2, the 7 pin connection+5V voltages of operational amplifier N2, the 4 pin connection-5V voltages of operational amplifier N2,6 pin of operational amplifier N2 connect an end of resistance R 73, the other end of resistance R 73 connects an end of resistance R 13, one end of resistance R 14 and 3 pin of operational amplifier N1, the other end ground connection of resistance R 13, the other end of resistance R 14 connects AON, 1 pin of operational amplifier N1 connects an end of capacitor C 11,8 pin of the other end concatenation operation amplifier N1 of capacitor C 11, switch control end 4dB connects an end of resistance R 11 and an end of resistance R 9, the other end of resistance R 9 connects an end of capacitor C 9 and an end of capacitor C 5, the other end of resistance R 11 connects the other end of capacitor C 9 and the other end of capacitor C 5,2 pin of the other end concatenation operation amplifier N1 of capacitor C 9, one end of capacitor C 7 and an end of resistance R 5, the other end of resistance R 5 connects an end of resistance R 6, one end of resistance R 3, one end of capacitor C 3 and an end of capacitor C 1, the other end of capacitor C 3 connects the other end of capacitor C 1 and an end of resistance R 1, meet switch control end 1dB behind the other end of the other end connection resistance R 3 of resistance R 1, meet output OUT behind the other end of the other end connection resistance R 6 of capacitor C 7 and 6 pin of operational amplifier N1, the 7 pin connection+5V voltages of operational amplifier N1, the 4 pin connection-5V voltages of operational amplifier N1.

9. a kind of voice-grade channel data insertion equipment as claimed in claim 1, it is characterized in that: described digital signal processing module comprises digital signal processing chip, modulus conversion chip, analog-digital chip and first memory; Described one-chip computer module comprises single-chip microcomputer, second memory, serial port chip, network interface chip; Modulus conversion chip, analog-digital chip and first memory are connected with digital signal processing chip respectively, digital signal processing chip is connected with single-chip microcomputer, single-chip microcomputer is connected with second memory, and single-chip microcomputer is connected with network interface with serial ports by serial port chip, network interface chip respectively.