CN2484710Y - Multi-path telephone information monitor - Google Patents

Abstract

The utility model relates to a multiplexed telephone information monitor, comprising a multiplexed telephone information interface 1, a direct current isolating circuit 2, a signal decoding circuit 3, a telephone data processing circuit 4, a LCD terminal 5, a RS 232 interface 6, a telephone information memory 7 and a computer terminal unit 8. The input end and output end of direct current isolating circuit are connected with the signal interface of the telephone and signal decoding circuit respectively; the output ends of signal decoding circuit are connected with the telephone data processing circuit, the LCD terminal, the RS 232 interface the telephone information memory and the computer terminal unit. The utility model can implement monitoring for a plurality of telephones at the same time; therefore may fully utilize the information resources of the telephone and perform effective management to the telephone.

Description

Multiplex telephony information monitoring device

The utility model relates to and a kind of phone information is carried out device for monitoring, particularly relates to a kind ofly can implementing the multiplex telephony information monitoring device of monitoring simultaneously to a plurality of phones.

At present, be widely used in the caller identification device of family and private medium-sized and small enterprises, perhaps telephone accounting system is the counting equipment of single channel called line indicator or function singleness.Single channel called line indicator and counting equipment are to utilize existing various telephone signal decoding chips that telephone signal is decoded, and handle decoded data with common single-chip microcomputer again, and telephone number and time liquor charging crystal display or LED demonstration are finished caller identification and charging.This caller identification device or message accounting exist a lot of deficiencies, show that mainly its work is suitable for phone number limited (having only a tunnel) and lacks handshake interface with the external world, can only write down 10-20 historical record owing to current caller identification and counting equipment again, thereby the useful phone information of the minority of its storage will be lost under the situation of device busy.If the telephone exchange of mounting strap charge system then need be paid high cost of equipment.

The purpose of this utility model is to overcome above deficiency, and provide a kind of multichannel telephony information interactive interface that has, can be simultaneously the multi-section phone be implemented the multiplex telephony information monitoring device of monitoring, so that make full use of the phone information resource and phone is effectively managed.

For achieving the above object, the utility model provides a kind of multiplex telephony information monitoring device, it comprises multiplex telephony signaling interface 1, dc isolation circuit 2, signal decoding circuit 3, phone data treatment circuit 4, liquid crystal display terminal 5, RS232 interface 6, phone information memory 7 and computer terminals 8, wherein the input of dc isolation circuit is connected with signal decoding circuit with telephone signal interface respectively with output, the output of signal decoding circuit is connected to phone data treatment circuit, liquid crystal display terminal, the RS232 interface, phone information memory and computer terminals are connected with the phone data treatment circuit.

Described dc isolation circuit 2 is the electric capacity buffer circuit, and signal decoding circuit 3 adopts decoding chip, and phone data treatment circuit 4 is a single-chip microcomputer.

Defectives such as seen from the above technical solution, the utility model has overcome existing telephone monitoring device function singleness, and application limitation is bigger.Because this device is provided with multiplex telephony signaling interface and corresponding telephone information-processing circuit, and be provided with special information recording device, thereby can connect multiplex telephony, simultaneously multiplex telephony is implemented monitoring, and phone information handled and stored, so just can avoid the loss of customer phone information, thereby the phone information resource is fully used, and realize effective management phone.The utility model is for medium-sized and small enterprises or need the client of phone information monitoring that an effective phone information monitoring equipment is provided.

The utility model is described in further detail below in conjunction with drawings and Examples.

Fig. 1 is the utility model structured flowchart.

Fig. 2 is a single channel phone monitoring circuit schematic diagram of the present utility model.

Fig. 3 is a multiplex telephony monitoring circuit schematic diagram of the present utility model.

At first consult Fig. 1, multiplex telephony information monitoring device of the present utility model comprises multiplex telephony signaling interface 1, dc isolation circuit 2, signal decoding circuit 3, phone data treatment circuit 4, liquid crystal display terminal 5, RS232 interface 6, phone information memory 7 and computer terminals 8 Fig. 2 show the circuit of single channel phone monitor, as shown, telephone signal interface 1 adopts the RJ45 telephony interface, and it is parallel on the telephone wire.Dc isolation circuit 2 is the electric capacity buffer circuit, its input is connected with signal decoding circuit with telephone signal interface respectively with output, by the simple electric capacity buffer circuit of two-way the telephone signal direct current component is isolated, exchange the input that useful phone information is capacitively coupled to telephone signal decoding circuit 3 respectively.Signal decoding circuit 3 comprises FSK (frequency shift keying) signal decoding circuit 31 and DTMF (dual-tone multifrequency) signal decoding circuit 32, the fsk signal decoding circuit adopts decoding chip, adopt EM92547BP in this example, 1 of this chip, No. 2 pin are useful telephone signal input, 3,4 pin are ring monitoring input, by chip input signal is decoded according to the BELL202 standard, can monitor bell signal, expression has the index signal and the phone information data flow of correct phone information, exports from 12,13 and No. 14 pin of chip respectively.DTMF decoding circuit core also is a decoding chip, and this circuit adopts HM9270D.Useful telephone signal is finished signal decoding work by the input of 1,2 pin jointly by chip and peripheral circuit, produces the phone information data of available data index signal and 4 parallel-by-bits output, can monitor simultaneously and recognize 0-9, A, B, C, D, 16 kinds of phone informations such as * and #.Above-mentioned FSK decoding valid data are serial output, so adopt serial received, DTMF decoding valid data are and line output, so adopt parallel receive.The output of signal decoding circuit is connected with phone data treatment circuit 4, and this phone data treatment circuit adopts common 8 single-chip microcomputers, adopts AT89C2051 type single-chip microcomputer in this example.Phone data treatment circuit output is connected with liquid crystal display terminal, RS232 interface (phone information download interface), phone information memory (EEPROM) and computer terminals, and wherein liquid crystal display terminal is connected with the phone data treatment circuit by conventional liquid crystal display treatment circuit.Decoded telephone signal numerical data (telephone number, time etc.) directly be sent to 8 common single-chip microcomputers and handle, single-chip microcomputer is to deposit the standing EEPROM of equipment (monitoring state automatically) in and be sent to LCDs by treatment circuit to show or be sent to RS232 interface (monitoring state in real time) according to current device operating state decision phone data.Simultaneously, this device has data unload function among the EEPROM, that is to say that can the telephony recording data of storing among the EEPROM be read in Computer Storage by PC RS232 interface handles (download state).The telephone channel number that the utility model is suitable for can be 4 the tunnel, the 8 road or multichannel more.

Fig. 3 shows the circuit of multiplex telephony monitor, the multiplex telephony monitor is that (or more multichannel) phone information receives by main control singlechip 9 with four the tunnel on the basis of single channel phone information observation circuit, caller identification (LCD), storage processing such as (EEROM), and provide the download interface (RS232) of phone information, this device to adopt 8031AH type main control singlechip to finish these functions on this basis.The phone information of handling well on each road receives by a condition line RSIGNn and a simulation serial interface take-up RXDn and keeps in the RAM district of 8031AH, and then is sent to the LCD demonstration respectively, the EEROM storage.In addition, under customer requirements, can from EEROM, take out phone information and be sent to computer terminals 8 and be stored in the database, perhaps can in real time the current phone information of receiving directly be sent to the RS232 interface, be stored in the database then according to customer requirements.

The working condition of above-mentioned multiplex telephony information monitoring device is as follows, get in two kinds of situation according to squeezing into of phone: when phone is squeezed into, automatically discern according to squeezing into this monitor of phone information mode difference (FSK or DTMF), if fsk signal, at first telephone signal is judged effective bell signal and is indicated ring effectively (No. 12 pins demonstrations of EM92547BP low level) through ring observation circuit (RingDetect Circuit) and decoding chip EM92547BP, simultaneously telephone signal will be passed through electric capacity buffer circuit (Far-between Circuit) and is sent to EM92547BP and carries out decode operation, valid data (No. 13 pins demonstrations of EM92547BP low level is finished and has been indicated in decoding, No. 12 pin show high level simultaneously), valid data appear in data wire this moment (EM92547BP 15 pin), single chip computer AT 89C2051 handles Data Receiving and is sent to main control singlechip, finish required work by main control singlechip, this promptly finishes fsk data reception work; If dtmf signal, because being data, dtmf signal comes in one by one earlier, just ring then, so telephone signal is sent decoding chip HM9270D decoding through electric capacity buffer circuit (Far-between Circuit) and decoding auxiliary circuit (Uncode Circuit) earlier, provide designation data useful signal (HM9270D 15 pin are high level) after the decoding earlier, and then just there are valid data (15 pin step-down level) to occur on the parallel data line, these valid data continue for some time, arrive up to next data-signal, when Data Receiving finishes, having ringing information comes in, this moment, decoding chip EM92547BP will be by the ring monitoring circuit monitors to bell signal and provide index signal (EM92547BP 12 pin low levels), this moment, single chip computer AT 89C2051 began deal with data, data processing finishes and gives main control singlechip and finish remaining work, and this promptly finishes the dtmf signal decoding.When phone is got, because dialing now all is a dtmf signal,, the course of work need monitoring to carry the machine signal so as receiving dtmf signal, just getting, and this signal can be obtained by 13 pin of EM92547BP, and this pin level is always for low when carrying machine.

Claims (2)

1, a kind of multiplex telephony information monitoring device, it is characterized in that, it comprises multiplex telephony signaling interface (1), dc isolation circuit (2), signal decoding circuit (3), phone data treatment circuit (4), liquid crystal display terminal (5), RS232 interface (6), phone information memory (7) and computer terminals (8), wherein the input of dc isolation circuit is connected with signal decoding circuit with telephone signal interface respectively with output, the output of signal decoding circuit is connected to phone data treatment circuit, liquid crystal display terminal, the RS232 interface, phone information memory and computer terminals are connected with the phone data treatment circuit.

2, multiplex telephony information monitoring device according to claim 1 is characterized in that, described dc isolation circuit (2) is the electric capacity buffer circuit, and signal decoding circuit (3) adopts decoding chip, and phone data treatment circuit (4) is a single-chip microcomputer.

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