CN2396587Y - Multi-media computer automatic dialing broadcasting device - Google Patents

Abstract

The utility model relates to a multimedia computer automatic dialing broadcast device, which belongs to the technical field of a communication circuit. The utility model is composed of a 89c2051 single chip computer basic circuit, an LM567 signal tone detecting circuit, an optical coupling isolating circuit, a CD22100 matrix switch circuit and a machine picking and hanging circuit which uses an RELAY as a core. The device is connected in series between a computer serial interface and a telephone office line telephone channel and is connected with a telephone. The utility model can automatically dial and broadcast according to the telephone number and speech information which are set by computer program and is suitable for telephone speech notice occasions of meeting notice, urgence of exchange of expenses of taxation, annual examination, transaction of certificates.

Description

The multimedia computer public address system that dials automatically

The utility model relates to a kind of multimedia computer public address system that dials automatically, belongs to the telecommunication circuit technical field.

The existing multimedia computer public address system that dials automatically inserts a telephone sound card and realizes on the computer motherboard expansion slot.The sound card of having a telephone installed must be opened computer cabinet and is provided with by the professional, public address system does not need to open computer cabinet and this multimedia computer dials automatically, as long as the serial line interface with holding wire plug insertion computer does not need the professional to be provided with yet.

The purpose of this utility model is to use the dislodging machine control of a slice 89C2051 chip microcontroller phone, detecting of phone exchange line telephone path signal sound and dialing automatically, and broadcast and control logic function are realized by the software on the computer.

Technical solution of the present utility model is as follows:

It is characterized in that described device is to be serially connected between computer serial line interface and the speech channel of phone exchange line.It comprises signal tone testing circuit, IC2 and IC3 optical coupling isolation circuit that a 89C2051 single-chip microcomputer IC1 basic circuit, IC5 LM567 form, IC4 switch matrix circuit and with RELAY the dislodging machine control circuit by core formed.Corresponding respectively the 1st, 2,3 pin with J1 of the 2nd, 3,10 pin of single-chip microcomputer IC1 join; The 10th pin of single-chip microcomputer IC1 also links to each other with network label V-1 with ground.J1 links to each other with the serial line interface of multimedia computer through holding wire.IC1 just can carry out communication with computer like this.

J3 links to each other with the speech channel of phone exchange line; The 1st, 3 pin of J3 is continuous with the 4th, 13 pin of relay R ELAY respectively.J4 links to each other with telephone set; The 1st, 3 pin of J4 is continuous with the 9th, 8 pin of relay R ELAY respectively.When relay R ELAY got electric adhesive, the 4th, 13 pin of relay linked to each other with the 8th, 9 pin respectively; When relay electric-loss, the 4th, 13 pin of relay links to each other with the 6th, 11 pin respectively.

When the instruction of the 9th pin follow procedure of single-chip microcomputer IC1 uprised, because the 9th pin of IC1 links to each other with the 2nd pin of R7, and the 1st pin of R7 linked to each other with the 5th pin of optocoupler IC3 through network label P35, thereby makes the D3 conducting of IC3, so the 11st, the 12 pin conducting of IC3.Because the 11st pin of IC3 links to each other with the 1st pin of triode P4 through network label V-3, the 12nd pin of IC3 links to each other with the 1st pin of R23 and the 2nd pin of R25 through network label RLY; The 2nd pin of R23 links to each other with network label V+3; The 1st pin of R25 links to each other with the 2nd pin of triode P4.As the 11st of IC3, during 12 pin conductings, the 1st pin current potential step-down of R23, make the 2nd pin current potential step-down of triode P4, triode P4 conducting, the 1st pin of triode P4 links to each other with the positive pole of the 16th pin of relay R ELAY and diode D2, and the 1st pin of relay links to each other with network label V+3 with the negative pole of diode D2; Relay R ELAY gets electric adhesive when triode P4 conducting, and J3 is linked to each other with J4, to realize the action of telephone set off-hook.In like manner, when the 9th pin follow procedure of single-chip microcomputer IC1 instruction step-down, the D3 of IC3 is with not conducting, also not conducting of P4, and relay electric-loss, J3 and J4 disconnect, and move with the on-hook that realizes telephone set.

The 1st pin of IC5 links to each other with the 2nd pin of C5, and the 1st pin of C5 links to each other with the 1st pin of C4 and links to each other with V-2 with network label PH-2 simultaneously; The 2nd pin of IC5 links to each other with the 2nd pin of C4, and the 3rd pin of IC5 links to each other with the 2nd pin of C3, and the 1st pin of C3 links to each other with the 1st pin of J4 through network label PH-1, and the 3rd pin of J4 links to each other with network label PH-2.The 4th pin of IC5 links to each other with the 7th pin of IC3, and links to each other with network label V+2.The 5th pin of IC5 links to each other with the 1st pin of R10, and the 2nd pin of R10 links to each other with the 2nd pin of the 6th pin of IC5 and C6, and the 1st pin of C6 links to each other with network label V-2 with the 7th pin of IC5; The 8th pin of IC5 links to each other with the 1st pin of R11; The 2nd pin of R11 links to each other with the 8th pin of IC3.

IC5 can be with LM567 or KA567, IC5 and C3, C4, C5, C6, R10, R11 form the phase-locked loop circuit of standard together, signal is imported from the 1st pin of C3 and C4 respectively, by the signal frequency of R10 and C6 decision locking, detect the signal of preset frequency as LM567 after, the 8th pin will be exported a low level, and when detecting less than signal, the 8th pin will be exported a high level.

When relay R ELAY adhesive, IC5 will detect the signal that transmits from the speech channel of phone exchange line, and when signal conforms to preset frequency, the 8th pin of IC5 will be exported a low level, thereby make the D4 conducting of IC3, make the 9th, the 10 pin conducting of IC3; The 9th pin of IC3 links to each other with ground; The 10th pin of IC3 links to each other through 7,8 pin of network label INT1 and IC1 and the 2nd pin of R27; The 1st pin of R27 links to each other with the 20th pin of IC1, and links to each other with network label V+1.After the 9th, the 10 pin conducting of IC3, the 10th pin of IC3 becomes low level, the 7th and 8 pin of IC1 also become low level, thereby trigger the interruption of single-chip microcomputer IC1, have no progeny among the IC1, to send out an information to computer through J1, and tell COMPUTER DETECTION to the signal in the speech channel of a phone exchange line.When IC5 detects less than the signal in the speech channel of phone exchange line, high level of the 8th pin output of IC5, the 7th of IC3,8 pin all are high level, thus the not conducting of D4 of IC3, the 9th of IC3,10 also not conductings of pin, the 10th pin of IC3 and the 7th, 8 pin of IC1 all are high level, and single-chip microcomputer IC1 can not trigger interruption.

The 12nd, 13,14,15 of IC1,16,17 pin respectively with R1, R2, R3, R4, R5, the 1st pin of R6 links to each other.R1, R2, R3, R4, R5, the 2nd pin of R6 link to each other with the 1st, 3,5,7 pin of optocoupler IC2 and the 1st, 3 pin of optocoupler IC3 respectively.The 2nd, 4,6,8 pin of IC2 and the 2nd, 4,6 pin of IC3 all link to each other with ground.The 9th, 11,13,15 pin of IC2 and the 13rd, 15 pin of IC3 all link to each other with network label V-2.The 10th, 12,14,16 pin of IC2 respectively with R20, R19, R18, the 1st pin of R13 links to each other.R20, R19, R18, the 2nd pin and the R21 of R13, the 2nd pin of R22 link to each other with network label V+2.R22, the 1st pin of R21 are continuous with the 14th, 16 pin of IC3 respectively.The 9th, 1,12,13,15,14,10,11 pin of IC4 are continuous with the 1st, 2,3,4,5,6,7,8 pin of J2 respectively, and J2 links to each other with the dialing keyboard of a telephone set.The 16th pin of IC4 links to each other with network label V+2.The 8th pin of IC4 links to each other with network label V-2.IC2 and IC3 can have the optocoupler of said function with 521-4 or other.

When the instruction of the 12nd, 13,14,15,16, the 17 pin follow procedures of IC1 uprises or during step-down, can make the D1 of IC2, D2, D3, the D1 of D4 and IC3, D2 conducting or disconnection; Thereby the 16th, 14,12,10 pin of IC2 opposite side and the 16th, 14 pin of IC3 are uprised or step-down.Because the 6th, 5,3,4 of matrix switch IC4,7,2 pin are through network label P0, P1, P2, P3, P4, P5 respectively with the 16th, 14 of IC2, the 16th, 14 pin of 12,10 pin and IC3 links to each other, therefore, and as the 16th, 14 of IC2, the 16th, 14 pin of 12,10 pin and IC3 uprises or during step-down, the 6th, 5,3 of IC4,4,7,2 pin also can uprise or step-down accordingly, make the 9th, 1,12 of IC4,13,15,14,10, conducting or disconnection between 11 pin; To realize the artificial dial feature of simulation.

C1 is a crystal oscillator.The 1st, 2 pin of C1 is continuous with the 5th, 4 pin of IC1 respectively, forms the oscillating circuit of IC1.IC4 should use CD22100 matrix switch integrated circuit.Relay R ELAY can use this model of DS2Y-S-DC5V of Matsushita company, also can use other relay of said function is arranged.P4 is common positive-negative-positive switch triode.The optional 1N4007 of D2 or other withstand voltage high diode.

J5 links to each other with the three paths of independent external direct current power supply.The 1st, 2,3,4 of J5,5,6 pin respectively with network label V+1, V-1, V+2, V-2, V+3, V-3 link to each other, and power to this device.

The utility model has the advantages that: 1. use single-chip microcomputer and multimedia computer to realize telephone automatic dialing broadcast function, compare with the scheme with telephone sound card, installation is simple, cost is low.2. use optocoupler to isolating between computer-internal circuit and the speech channel of phone exchange line, by three groups of V1, V2, V3 independently DC power supply power respectively, do not disturb mutually, safe.

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

When setting-up time to the back or by the operator during with the corresponding software on the click computer, computer program passes to the off-hook instruction among the single-chip microcomputer IC1 through serial line interface, by IC1 commander RELAY off-hook.Speech channel can be used as the phone exchange line, will return an available signal by IC5, and IC3 returns to IC1 through optocoupler, and IC1 is uploaded to computer again.Computer is passed to IC1 with under the dialed number, and IC1 simulates the manual dial through IC2, IC3 drive IC 4 matrix switches.When the called number return busy tone, IC5 turns back to computer program with signal, and computer will be commanded the IC1 on-hook.If connect, computer program will broadcast default voice messaging from audio amplifier through sound card, be communicated to the callee from receiver, and after callee's on-hook, computer program will finish this task, if any next one sign indicating number to be called out the numbers, will repeat above step automatically.

Claims (2)

1. multimedia computer public address system that dials automatically is characterized in that described device is to be serially connected between computer serial line interface and the speech channel of phone exchange line, and links to each other with a telephone set.It comprises IC1 89C2051 single-chip microcomputer basic circuit, IC5 LM567 signal tone testing circuit, IC2 and IC3 optical coupling isolation circuit, IC4 CD22100 switch matrix circuit and is the dislodging machine circuit of core with RELAY,

(1) the 2nd pin of .IC1, the 3rd pin, the 1st pin of the 10th pin difference correspondence and J1, the 2nd pin, the 3rd pin links to each other; The 10th pin of IC1 also links to each other with network label V-1 with ground.J1 links to each other with the serial line interface of multimedia computer through holding wire,

(2) the 9th pin of .IC1 links to each other with the 2nd pin of R7, and the 1st pin of R7 links to each other with the 5th pin of optical coupling isolation circuit IC3 through network label P35,

(3) the 10th pin of .IC3 links to each other through 7,8 pin of network label INT1 and IC1 and the 2nd pin of R27; The 1st pin of R27 links to each other with the 20th pin of IC1, and links to each other with network label V+1.

2. the multimedia computer according to claim 1 public address system that dials automatically is characterized in that the 6th pin of switch matrix circuit IC4 CD22100, the 5th pin, the 3rd pin, the 4th pin, the 7th pin, the 2nd pin is through network label P0, P1, P2, P3, P4, the 16th pin of P5 difference correspondence and optical coupling isolation circuit IC2, the 14th pin, the 12nd pin, the 16th pin of the 10th pin and IC3, the 14th pin links to each other.IC1 is by V+1, and V-1 powers; IC4, IC5 are by V+2, and V-2 powers; RELAY is by V+3, and V-3 powers; V+1, V-1 and V+2, V-2 and V+3, V-3 are three groups of external direct current power supplies independently mutually.

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