CN2181787Y - Intelligent message accounting telephone - Google Patents

Abstract

The utility model provides an intelligent message accounting telephone, which is composed of a telephone host machine circuit, an intelligent message accounting circuit and a power supply. The intelligent message accounting circuit is composed of an input interface circuit, a single chip computer, a memory, an output interface circuit and a displayer, wherein, an input interface circuit of the intelligent message accounting circuit is provided with a tone testing circuit, the sound signals from an a line and a b line can be magnified and decoded by the tone testing circuit and can be sent to the single chip computer, and the recognition of the sound signals can be realized by the single chip computer. The message accounting can be started when the long tone of the holding machine of the counterpart disappears, and the technological problem of the realization of the intelligent message accounting of the domestic consumers can be solved. The utility model also has anti-theft function, and the equitable price, the optimum structure and the complete function of the utility model can be realized.

Description

Intelligent message accounting telephone

A kind of smart charge telephone set belongs to communication technical field.

Along with popularizing of household electrical appliance, people are more and more higher to the requirement of the function of telephone.At present, the strongest problem of China telephone subscriber reflection be exactly telephone charges whether accurately and whether have other people incorporate phone telephoning illegally problem at this machine.And existing telephone can not be realized the own automatic charging of unit and antitheft.Nearest by retrieval various long-distance calls, the local telephone network taximeter of inventing, its input signal is all taken from the polarity reversing signal of subscribers feeder a, b as the charging commencing signal, and in fact this can not be used for all domestic consumers, but as a kind of special clothes function.

The purpose of this utility model provides a kind of existing telephone charges regulation that meets and does not need the special clothes function of telecommunication department, is applicable to the automatic charging telephone of all domestic consumers.

The technical solution of the utility model is achieved in that host circuit is identical with the existing telephone unit, keeps all functions of existing telephone machine.The smart charge circuit is made up of input interface circuit, single-chip microcomputer, memory, output interface circuit, display or printer, the utility model has mainly solved the technical problem of charging commencing signal, signal tone testing circuit 1 is arranged in its input interface circuit, its input termination user a, b line, and output is connected to the I/O mouth of single-chip microcomputer 3.

This signal tone testing circuit is made up of sampling amplification circuit and audio coding decoding circuit.Signal is taken from user a, b line, but is not to get its polarity reversing signal, delivers to the single-chip processor i/o mouth but get its voice signal through amplifying, decipher decoding, judges that by software the other side carries machine, long disappears is the charging commencing signal.

Input interface circuit is made up of signal tone testing circuit 1 and control circuit 2 two large divisions, and control circuit 2 is made up of outside line voltage detecting circuit, power control circuit and antitheft executive circuit.Outside line voltage detecting circuit input termination user a, b line are got the treated output of its voltage signal and are delivered to single-chip microcomputer and power control circuit.Antitheft executive circuit is carried machine enabling signal HK by single-chip microcomputer according to outer line detection circuit and this machine and is judged whether that really this machine is put forward the operating state that machine is exported an antitheft executive circuit of signal controlling.The output of antitheft executive circuit connects user a, b line and alarm.

Fig. 1 is the utility model logic diagram, and Fig. 2 is for implementing circuit theory diagrams.Accompanying drawing now is described and further specifies the technical solution of the utility model and embodiment:

Host circuit figure omits among Fig. 1. Input interface is made up of signal tone testing circuit 1 and control circuit 2.

Signal tone testing circuit 1 is made up of sampling amplification circuit and audio coding decoding circuit. The voice signal of taking from user a, b line amplifies the I/O mouth of delivering to single-chip microcomputer 3 by the decoding decoding. By single-chip microcomputer identification the other side carry machine, long disappears and opens the beginning signal as charging.

Control circuit 2 is made up of outside line voltage detecting circuit, power control circuit, antitheft executive circuit. The outside line voltage detecting circuit is made up of rectification circuit, photoelectrical coupler and not circuit. Signal is taken from user a, b line, and as a, when the b line drop is low, the outside line voltage detecting circuit send a signal to power control circuit, and power supply is added whole Circuits System. This signal and this machine are carried an enabling signal HK that machine produces and are delivered to simultaneously single-chip microcomputer and judge whether that this machine carries machine. Antitheft executive circuit is not worked if this machine is carried machine, the normal talking timing. Talk-through, the on-hook of this machine elder generation, a, b line voltage uprise, and single-chip microcomputer enters the on-hook handling procedure automatically, deposits in the memory such as dialing telephone number, air time. If the on-hook of the other side elder generation, a, b line are sent busy tone here, send into single-chip microcomputer through the signal that the signal tone testing circuit is processed, by finishing above-mentioned identical work after the software identification.

If other people are extension telephone on a, b line illegally, in case carry machine, outside line voltage detecting electricity The road detects a, the b line drop is low, but this machine does not have the HK enabling signal, the antitheft executive circuit work of Single-chip Controlling, and discontinuity is connected loop with small resistor and is made illegal extension telephone machine cisco unity malfunction on the one hand, reports to the police on the other hand. Immediate recovery normal condition when the other side's on-hook. If broken string inserts phone, a, b line voltage are 0 o'clock, and antitheft executive circuit also sends alarm signal.

Output interface circuit 4 comprises telephone number sampling decoding circuit and display interface circuit.Telephone number sampling decoding circuit is handled the host keyboard signal and is given single-chip microcomputer, and single-chip microcomputer deposits memory 5 in after telephone number and air time are handled.Display interface circuit links to each other with display.When the needs Query Information, click display switch, single-chip microcomputer accesses all storage informations automatically from memory, comprise local telephone network total degree, long-distance call total degree, and each long-distance call air time and called number etc. are shown by display 6.This machine also can be stored in various telephone charges standards in the memory according to user's needs, realizes that by software direct cost shows.

The utility model timing metering meets GB and international standard, charges accurately and reliably, has anti-theft feature simultaneously, because local circuit optimization, low price makes domestic consumer all can realize automatic charging, and better promotional value is arranged.

Embodiment of the present utility model such as Fig. 2 provide:

Single-chip microcomputer selects for use 80C51, audio coding decoding circuit to be made up of photoelectrical coupler and relay, alarm with LM467, antitheft executive circuit, display interface is made up of two 74HC164 shift registers and three MC14066 analog switches, the display LCD, the power supply dry cell.

Claims (3)

1, a kind of smart charge telephone set, form by phone host circuit, smart charge circuit and power supply, the smart charge circuit is made up of input interface circuit, single-chip microcomputer, memory, output interface circuit, display, it is characterized in that having in the input interface circuit output to be used to judge the signal tone testing circuit of charging commencing signal, its input termination user a, b line are got its voice signal, and output connects the single-chip processor i/o mouth.

2, smart charge telephone set according to claim 1, it is characterized in that the signal tone testing circuit is made up of sampling amplification circuit and audio coding decoding circuit, sampling amplification circuit input termination user a, b line are got its voice signal, deliver to audio coding, decoding circuit through amplification, audio coding decoding circuit output connects the I/O mouth of single-chip microcomputer.

3, smart charge telephone set according to claim 1 and 2, it is characterized in that input interface circuit is made up of signal tone testing circuit and control circuit, control circuit is by the outside line voltage detecting circuit, power control circuit and antitheft executive circuit are formed, outside line voltage detecting circuit input termination user a, the b line gets that its voltage signal is treated delivers to single-chip microcomputer and power control circuit by output, antitheft executive circuit is carried machine enabling signal HK by single-chip microcomputer according to outer line detection circuit and this machine and is judged whether that really this machine is put forward the operating state that machine is exported an antitheft executive circuit of signal controlling, the output termination user a of antitheft executive circuit, b line and alarm.

Images