CN2398786Y

CN2398786Y - Automatic net play apparatus for network telephone

Info

Publication number: CN2398786Y
Application number: CN 99234791
Authority: CN
Inventors: 王建军
Original assignee: Individual
Current assignee: Individual
Priority date: 1999-07-16
Filing date: 1999-07-16
Publication date: 2000-09-27
Anticipated expiration: 2009-07-16

Abstract

The utility model relates to an automatic network surfing apparatus of a network telephone, which is used by matching with the network telephone. The utility model is mainly composed of a line interface circuit, a double-audio transceiver circuit, a main control circuit, etc., wherein, the line interface circuit can be respectively connected with a telephone wire and a local call wire, and respectively connected with the double-audio transceiver circuit and the main control circuit. The utility model has the characteristics of automatically achieving the communication of the user's telephone and the network telephone, automatically identifying that the user's calling is in the service range of the network telephone or not, and enabling the manual dialing to be simple, convenient, and fast, and thereby, the turn-on speed of the network surfing is enhanced, etc. The utility model can be widely used for various network telephone lines, and can be used by matching with the household terminal telephones.

Description

The automatic internet connection of network telephone device

The utility model relates to a kind of last wire stitcher that is used with the networking telephone, whether particularly a kind of call identifying automatically is within selected network telephone service scope, can make the manual dial easy, quick again, and then improve the automatic internet connection of network telephone device of online closing speed greatly.

In existing technical scheme, the network access of the networking telephone is the manual dial, before destination phone numbers, should put through tens place digital codes such as gateway number, card number, password earlier successively, uses the real inconvenience that has; In addition, even put through the gateway number etc. of tens place digital code sometimes earlier, but, cause call failure and time waste because the networking telephone only makes own calling not in netting for some areas cover.

The purpose of this utility model is to overcome the shortcoming of above-mentioned prior art, and provide a kind of by the mating reaction of transmission circuit etc. frequently of intelligent governor circuit and double-tone, automatically finish the UNICOM of the subscriber phone and the networking telephone, discern customer call whether within the network telephone service scope automatically, can make the manual dial easy, quick, and then improve the automatic internet connection of network telephone device of online closing speed greatly.

The solution that realizes the utility model purpose is: the automatic internet connection of network telephone device that is provided, comprise power circuit (5) and prompt tone source circuit (6), its special character is: the input and the 220V electric main of described power circuit (5) join, its output is joined with governor circuit (3) and double-tone frequency transmission circuit (2), the input of described prompt tone source circuit (6) and governor circuit (3) join, its output is joined with line interface circuit (1), the input of described line interface circuit (1) respectively with local telephone (S ₃, S ₄) and prompt tone source circuit (6) join, its output respectively with telephone line (S ₁, S ₂) and governor circuit (3) join, also be input with double-tone frequency transmission circuit (2), output connects, described double-tone transmission circuit (2) frequently joins with power circuit (5) and clock circuit (4) respectively, its output is input with governor circuit (3), output connects, described governor circuit (3) joins with described power circuit (5) and clock circuit (4) respectively, its input is input with double-tone frequency transmission circuit (2), output connects, its output is joined with prompt tone source circuit (6), and the output of described clock circuit (4) is joined with double-tone frequency transmission circuit (2) and governor circuit (3) respectively.

Power circuit described in the utility model (5) can be by power transformer T ₁, rectifier bridge B ₁, electric capacity E ₁, C ₁, resistance R ₂₃, R ₂₄And rectifier bridge B ₂, integrated package of pressure-stabilizing IC ₃, electric capacity E ₂, E ₃, C ₂Constitute.

Prompt tone source circuit described in the utility model (6) can be by ic chip ₅Four end to end successively NAND gate N ₆, N ₇, N ₈, N ₉With triode N ₁₀Constitute described NAND gate N Deng part ₉Output pin 10 through resistance R ₂₀With triode N ₁₀Base stage link to each other NAND gate N ₈An input pin 5 can be through capacitor C ₄With N ₆Input pin 1,2 link to each other its another input pin 6 and ic chip ₁Pin 19 link to each other after resistance R ₂₁Ground connection, NAND gate N ₇Input pin 12,13 and N ₆Output pin 3 join, and through resistance R ₁₉With N ₆Input pin 1,2 link to each other described triode N ₁₀Collector electrode through resistance R ₂₂With rectifier bridge B ₃Output join its grounded emitter.

Line interface circuit described in the utility model (1) can be by relay J ₁, J ₂, J ₃Two normally closed, break contact JK ₁, JK ₂, JK ₃, resistance R ₄, R ₁₄, R ₁₅, R ₁₈, R ₂₅, R ₂₆, voltage-stabiliser tube Z ₁, triode N ₅With electric capacity E ₄Constitute described rectifier bridge B ₃Input through relay pipe J ₁, J ₃Two normally-closed contacts respectively with telephone line S ₁, S ₂With local telephone S ₃, S ₄Join, its input can be through capacitor C ₈And resistance R ₈Series connection back and ic chip ₂Join.

Transmission circuit (2) can be by ic chip frequently for double-tone described in the utility model ₂, resistance R ₈～R ₁₃, R ₁₆, R ₁₇, capacitor C ₃, C ₈With triode N ₄Constitute described ic chip ₂Input pin 2 and resistance R ₈Join pin 20 and resistance R ₁₇Join, its output pin 8 is through resistance R ₁₈With triode N ₄Base stage join, its pin 9,11,12,14～17 is correspondence and ic chips respectively ₁Pin 18,17,16,12～15 join.

Governor circuit described in the utility model (3) can be by ic chip ₁, IC ₄, resistance R ₁～R ₃, R ₅～R ₇, R ₂₁, triode N ₁, N ₂, N ₃, relay J ₁, J ₂, J ₃With diode D ₁～D ₃Constitute described ic chip ₁Output pin 2,3,9 respectively with ic chip ₄Three and a door A ₃, A ₂, A ₁Input pin 2,12,6 join, described with the door A ₃, A ₂, A ₁Output pin 3,11,4 through triode N ₃, N ₂, N ₁With relay J ₁, J ₂, J ₃Join.

Clock circuit described in the utility model (4) can be by crystal oscillator C ₅With ic chip ₂Inner sign-changing amplifier is formed, its output respectively with ic chip ₁, IC ₂Join.

Accompanying drawing has been described a preferred embodiment of the present utility model.

Fig. 1 is a theory diagram of the present utility model.

Fig. 2 is the circuit theory diagrams of the utility model embodiment.

Below in conjunction with accompanying drawing content of the present utility model is described in detail.

Know referring to Fig. 1: the utility model comprises power circuit 5 and prompt tone source circuit 6, and the input of described power circuit 5 and 220V electric main join, after step-down, rectification, filter stream and voltage stabilizing, and output dc voltage+V ₁,+V ₂Be respectively power supplies such as governor circuit 3 and double-tone frequency transmission circuit 2; The audio signal that described prompt tone source circuit 6 produces, incoming line interface circuit 1 under the control of governor circuit 3; The input of described line interface circuit 1 respectively with local telephone S ₃, S ₄Join with prompt tone source circuit 6, its output respectively with telephone line S ₁, S ₂, double-tone frequently transmission circuit 2 and governor circuit (3) join, and then will detect the carrying of telephone set, the hook state signal sends double-tone transmission circuit 2 and governor circuit 3 frequently to, finishes the switching of circuit; Described double-tone transmission circuit 2 frequently joins with the output of power circuit 5 and clock circuit 4 respectively, its output is input with governor circuit 3, output connects, its input pin can convert the effective double-audio signal from line interface circuit 1 to digital signal and send governor circuit 3 to, finishes the sign indicating number process of receiving; Described governor circuit 3 joins with the output of power circuit 5 and clock circuit 4 respectively, its input is joined with double-tone frequency transmission circuit 2 and line interface circuit 1, its output is joined with prompt tone source circuit 6, it will carry out calculation process from the double-tone frequency decoded data of double-tone frequency transmission circuit 2, and according to result to double-tone frequently transmission circuit 2 send data, make it send double audio code, finish circuit by relay again and switch, simulate work such as the machine of proposing local line; The output of described clock circuit (4) is joined with double-tone frequency transmission circuit 2 and governor circuit 3 respectively.

Know referring to Fig. 2: power circuit 5 described in the utility model is mainly by power transformer T ₁, rectifier bridge B ₁, electric capacity E ₁, C ₁, resistance R ₂₃, R ₂₄And rectifier bridge B ₂, integrated package of pressure-stabilizing IC ₃, electric capacity E ₂, E ₃, C ₂Constitute; Described prompt tone source circuit 6 is mainly by ic chip ₅Four end to end successively NAND gate N ₆～N ₉And triode N ₁₀, resistance R ₁₉, R ₂₀, R ₂₂And capacitor C ₄Constitute; Described line interface circuit 1 is mainly by local telephone (S ₃, S ₄), telephone line (S ₁, S ₂), rectifier bridge B ₃, relay J ₁, J ₂, J ₃Two normally closed, break contact JK ₁, JK ₂, JK ₃, resistance R ₄, R ₁₄, R ₁₅, R ₁₈, R ₂₅, R ₂₆, voltage-stabiliser tube Z ₁, triode N ₅With electric capacity E ₄Constitute; Described double-tone frequency transmission circuit 2 is mainly by ic chip ₂, resistance R ₈～R ₁₃, R ₁₆, R ₁₇, capacitor C ₃, C ₈With triode N ₄Constitute; Described governor circuit 3 is mainly by ic chip ₁, IC ₄, resistance R ₁～R ₃, R ₅～R ₇, R ₂₁, triode N ₁, N ₂, N ₃, relay J ₁, J ₂, J ₃With diode D ₁～D ₃Constitute; Described clock circuit 4 can be by crystal oscillator C ₅With ic chip ₂Inner sign-changing amplifier constitutes; Described line interface circuit 1, its outside line voltage is through S ₃, S ₄Introduce, and through JK ₁And JK ₃Normally-closed contact and telephone line S ₁, S ₂Be communicated with, simultaneously with rectifier bridge B ₃Input link to each other, through B ₃The direct voltage of the about 48V of output is sent into voltage-stabiliser tube Z after the rectification ₁Negative terminal, by voltage-stabiliser tube Z ₁, resistance R ₁₄, R ₁₅Series connection back cross-over connection is in rectifier bridge B successively ₃The phone state detection circuit that is constituted between the output positive and negative electrode is with detected status signal input triode N ₅Base stage, make its saturation conduction or end.When telephone set was in hook state, the voltage on the circuit was about about 48V, voltage-stabiliser tube Z ₁Breakdown and conducting, R ₁₅On voltage make triode N ₅Saturation conduction, its collector voltage is almost equal to zero, make its with the governor circuit 3 that links to each other in ic chip ₁Pin 1 be in low level and the hold reset state; When telephone set was raised, outside line voltage then can decline to a great extent to 8～12V, voltage-stabiliser tube Z ₁End R ₁₅Last loss of voltage, triode N ₅End, from power circuit 5+V ₂Voltage is through R ₁₈Send into IC in the governor circuit 3 ₁Pin 1, its reset mode is removed and is entered state of a control, the telephone set of mentioning then is in waits for the input double-audio signal, resistance R ₂₅, R ₂₆, JK ₁Form simulation and carry machine circuit, in order to improve JK ₁Quality of handoff, make it when switching, produce simulation and carry the machine signal, switch and cancel simulation after finishing and carry the machine signal; Double-audio signal transceiver ic chip in the described double-tone frequency transmission circuit 2 ₂, will after its input pin 2 receives, convert digital signal to and export to governor circuit 3 ic chips from the double-audio signal of line interface circuit 1 from its pin 11,12,17,16 ₁Pin 17～14, finish the sign indicating number process of receiving, on the contrary, ic chip ₁Also can be from its pin 17～14 to IC ₂Send data-signal, this data-signal is by IC ₂Pin 11,12,17,16 input and convert corresponding double-audio signal to from its pin 8 outputs, via resistance R ₁₈, R ₁₂, R ₁₁With triode N ₄The driver of forming makes rectifier bridge B ₃And local line on electric current change, reach double-tone take place frequently the sign indicating number purpose, resistance R ₁₃It is capacitor C ₈Discharge resistance; The core of described governor circuit 3 is microcomputer ic chips that embodied energy is finished multiple action command ₁, 9,3,2 resistance R of joining respectively of its output pin ₁, R ₂, R ₃Be pull down resistor, can improve the reliability of low level output, ic chip ₄Three with the door A ₁～A ₃, resistance R ₅～R ₇, triode N ₁～N ₃Constitute relay J respectively ₃, J ₂, J ₁Drive circuit, to finish to three group relay contact JK ₃, JK ₂, JK ₁Switching, diode D ₁～D ₃It is respectively relay J ₁, J ₂, J ₃The continued flow tube of corresponding line bag is to eliminate inductance self-induction, ic chip ₁With IC ₂The double-tone sent here decoded signal frequently carries out calculation process, and according to result to IC ₂Send data, make it send double audio code, and pass through relay J local line ₁～J ₃Normally closed, break contact JK ₁, JK ₂, JK ₃Finish machine signal etc. is carried in the switching and the conveying simulation of circuit; Described clock circuit 4 is mainly by crystal oscillator C ₅And ic chip ₂Inner sign-changing amplifier constitutes, the Ji Yuan and from IC when accurate to produce ₂ Pin 6 export IC to ₁Pin 20, be IC ₁, IC ₂Standard clock signal is provided.

The utility model embodiment operation principle is as follows: communications facility regulation, telephone set when hook state, local telephone S ₃, S ₄On voltage be about 48V, be 8-12V when carrying the machine state.When carrying machine when the need conversation, computer chip IC ₁Inner digital program is carried out in work, and dial the number is through telephone line S ₁, S ₂And relay J ₃Normally-closed contact JK ₃Send into IC ₂And convert digital signal to and deliver to IC ₁, through IC ₁Judgement will not surfed the Net.As online, IC ₁ Pin 2 output high level, triode N ₃Conducting, relay J ₁Work, JK ₁Adhesive, its normally opened contact is connected, and its normally-closed contact disconnects and cut-out local telephone S ₃, S ₄Link with telephone set, simultaneously telephone line S ₁, S ₂Acquisition is from the voltage+V of power circuit 5 ₁Through R ₂₃, R ₂₄The electric current of feeding can continue dialing, IC ₂Continue to receive the telephone set dialing signal, finish until dialing; Ic chip ₁Inner program control its pin 3 output high level, the triode N of making ₂Conducting, relay J ₂Work, its JK ₂The normally opened contact closure makes R ₂₆Be parallel to local telephone S ₃, S ₄On, produce simulation and carry the machine signal to obtain the local telephone network dialing tone; Ic chip ₁Inner program control its pin 2 output low levels, the triode N of making ₃End, relay J 1 quits work, JK ₁Discharge local telephone S ₃, S ₄With rectifier bridge B ₃Input is connected, and prepares by IC ₂Send signal; For do not make hear in the phone toot-, pout-send out number sound, the program control IC that makes ₁Pin 9 output high level, triode N ₁Conducting, relay J ₃Work, its JK ₃The normally opened contact closure, phone S ₁, S ₂Acquisition from power circuit 5+V ₂Voltage is through R ₄The instructed voltage that provides shows that it works; IC ₁With the signal that received after combination, by certain beat from its pin 12～18 respectively correspondence send into IC ₂Pin 14～17,12,11,9, IC ₂Output to by resistance R through pin 8 ₁₀～R ₁₂With triode N ₄The driver that constitutes makes N ₄Output end voltage change, cause and local telephone S ₃, S ₄The rectifier bridge B that links to each other ₃Input terminal voltage also change, signal is passed to Local Exchange; The program control IC that makes ₁Pin 9 output low levels, N ₁End relay J ₃Quit work JK ₃Discharge telephone line S ₁, S ₂With local telephone S ₃, S ₄UNICOM waits for conversation; The program control IC that makes ₁ Pin 3 output low levels, N ₂End relay J ₂Quit work JK ₂Discharge, the machine signal cancellation is carried in simulation.

Among the utility model embodiment by IC ₅Deng the prompt tone source circuit 6 that element constitutes, be to aim at the utility model to preset relevant gateway number, card number, password etc. before use prompt tone is provided, to help to finish smoothly setting.

Ic chip described in the utility model embodiment ₁, can adopt AT90S2313 series, IC ₂Can adopt MT8880 series, IC ₃Can adopt 7805 series, IC ₄Can adopt CD4081 series, IC ₅Can adopt CD4011 series, relay J ₁～J ₃Can adopt JZC-4137 series.

In conjunction with the foregoing description as can be seen, the utility model is compared existing technology and is had following advantage:

1. rational in infrastructure, easy and simple to handle;

2. can finish the UNICOM of the subscriber phone and the networking telephone automatically, discern customer call automatically whether within the network telephone service scope;

3. can make the manual dial easy, quick, and then improve online closing speed greatly.

The utility model can be widely used in the disparate networks telephone line, also can be used with the home terminal telephone set.

Claims

1. automatic internet connection of network telephone device, comprise power circuit (5) and prompt tone source circuit (6), the input and the 220V electric main of described power circuit (5) join, after step-down, rectification, filtering and voltage stabilizing, output dc voltage is respectively governor circuit (3) and double-tone transmission circuit power supplies such as (2) frequently, and described prompt tone source circuit (6) is mainly by ic chip ₅Four end to end successively NAND gate N ₆～N ₉And triode N ₁₀, resistance R ₁₉, R ₂₀, R ₂₂And capacitor C ₄Constitute,, it is characterized in that to produce audio signal and to export line interface circuit (3) to: the input of described line interface circuit (1) respectively with local telephone (S ₃, S ₄) and prompt tone source circuit (6) join, its output respectively with telephone line (S ₁, S ₂) and governor circuit (3) join, also be input with double-tone frequency transmission circuit (2), output connects, described double-tone transmission circuit (2) frequently joins with the output of described power circuit (5) and clock circuit (4) respectively, its output is input with governor circuit (3), output connects, described governor circuit (3) joins with the output of power circuit (5) and clock circuit (4) respectively, its input receives and dispatches electricity (2) frequently with double-tone and line interface circuit (1) joins, its output is joined with prompt tone source circuit (6), and the output of described clock circuit (4) is joined with double-tone frequency transmission circuit (2) and governor circuit (3) respectively.

2. automatic internet connection of network telephone device as claimed in claim 1 is characterized in that: described line interface circuit (1) is mainly by local telephone (S ₃, S ₄), telephone line (S ₁, S ₂), rectifier bridge B ₃, relay J ₁, J ₂, J ₃Two normally closed, break contact JK ₁, JK ₂, JK ₃, resistance R ₄, R ₁₄, R ₁₅, R ₁₈, R ₂₅, R ₂₆, voltage-stabiliser tube Z ₁, triode N ₅With electric capacity E ₄Constitute described local telephone (S ₃, S ₄) can be through relay J ₁, J ₃Contact JK ₁, JK ₃With telephone line (S ₁, S ₂) join or disconnect, also can with rectifier bridge B ₃Input join or disconnect described rectifier bridge B ₃The output cross-over connection voltage-stabiliser tube Z of series connection is arranged successively ₁, resistance R ₁₄, R ₁₅, resistance R ₁₄, R ₁₅Contact and triode N ₅Base stage join described N ₅Base stage and emitter between be connected to electric capacity E ₄, its collector electrode respectively with IC ₁Pin 1 and IC ₄Pin 1,13,5 join and through resistance R ₁₈, R ₁₇Series connection back and IC ₂Pin 20 join.

3. automatic internet connection of network telephone device as claimed in claim 1 is characterized in that: described double-tone frequency transmission circuit (2) is mainly by ic chip ₂, resistance R ₈～R ₁₃, R ₁₆, R ₁₇, capacitor C ₃, C ₈With triode N ₄Constitute described IC ₂Input pin 2 through R ₈, C ₈Series connection back and B ₃Output join, its pin 2 is also through resistance R ₉Join with pin 3, its pin 8 is through resistance R ₁₀With N ₄Base stage join, its pin 5,10 ground connection, its pin 18 is through R ₁₆, C ₃Series connection back and power supply+V ₂Join its pin 19 and R ₁₆And C ₃Contact join, be connected to crystal oscillator C between its pin 6,7 ₅, its pin 6,9,11,12,14～17 is correspondence and IC respectively ₁Pin 20,18～16,12～15 join described triode N ₄Emitter and ground between be connected to resistance R ₁₂, its collector electrode and B ₃Output between be connected to resistance R ₁₁, resistance R ₁₃Cross-over connection is in B ₃Positive and negative output.

4. as claim 1 or 2 or 3 described automatic internet connection of network telephone devices, it is characterized in that: described governor circuit (3) is mainly by ic chip ₁, IC ₄, resistance R ₁～R ₃, R ₅～R ₇, R ₂₁, triode N ₁, N ₂, N ₃, relay J ₁, J ₂, J ₃With diode D ₁～D ₃Constitute described ic chip ₁Pin 12～18 respectively with described IC ₂Join its pin 19 and described IC ₅Pin 6 join and through resistance R ₂₁Join its pin 20 and described IC with ground ₂Pin 6 joins, its pin 6 and power supply+V ₂Join, its pin 2,3,9 respectively with IC ₄Pin 2,12,6 join, and respectively through resistance R ₃, R ₂, R ₁With pin 10, with triode N ₃, N ₂, N ₁Emitter join, its pin 1 respectively with IC ₄Three and a door A ₃, A ₂, A ₁Pin 1,13,5 and N ₅Collector electrode join described ic chip ₄With door A ₁, A ₂, A ₃Three output pins 4,11,3 respectively through resistance R ₅, R ₆, R ₇With triode N ₁, N ₂, N ₃The base stage correspondence join described triode N ₃, N ₂, N ₁Collector electrode and power supply+V ₁Between respectively correspondence be connected to relay J ₁, J ₂, J ₃, described relay J ₁, J ₂, J ₃Two ends respectively correspondence be parallel with a diode D ₁, D ₂, D ₃