CN2240218Y

CN2240218Y - Programmable capacity multiplication remote telephone alarm

Info

Publication number: CN2240218Y
Application number: CN 95232562
Authority: CN
Inventors: 常艺
Original assignee: Individual
Current assignee: Individual
Priority date: 1995-10-26
Filing date: 1995-10-26
Publication date: 1996-11-13
Anticipated expiration: 2005-10-26

Abstract

The utility model provides a programmable capacitance multiplication remote telephone alarm which comprises a talking and sampling circuit which is connected with a telephone wire. The talking and sampling circuit is connected with a speech processing circuit, a number dialing circuit, a demodulating circuit and a central control circuit, and the central control circuit is connected with an alarm circuit, the speech processing circuit, the number dialing circuit and the demodulating circuit. The utility model adopts the capacitance as the sensing element of the alarm circuit, and adopts the control of a single-chip processing chip. The utility model realizes the alarm function, having simple structure, high reliability and complete function.

Description

Program control capacitance multiplication remote phone alarm

The utility model relates to a kind of warning device, particularly program control capacitance multiplication remote phone alarm.

At present, many main radio frequency or the far infrareds of adopting of existing long-distance alarm apparatus start.Radio frequency starts because air interference is big, and country prohibites.Infrared startup poor reliability is used " red cloth ", just can make its forfeiture warning function.Minority adopts and moves, and the alarm of modes such as pressure needs outward element, is found easily, and poor practicability is unsuitable for extensively promoting the use of.

The purpose of this utility model provides a kind of simple in structure, reliability height, the program control capacitance multiplication remote phone alarm of telotism.

The purpose of this utility model is achieved in that it comprises the conversation-sample circuit that is connected with telephone wire, conversation-sample circuit links to each other with speech processing circuit, dial-up circuit, demodulator circuit and central control circuit, and central control circuit connects warning circuit, dial-up circuit, demodulator circuit and speech processing circuit.When using the utility model, in advance relevant alarm call number is deposited among the WE9145 in the dial-up circuit, and deposited in alarm voice in 41256 chips of speech processing circuit by MIC by user's requirement; When people's proximity sensing device, the appearance value as the electric capacity of sensing element produces multiplication in the warning circuit under the effect of human biological electricity, central control circuit detects capacitance multiplication signal triggering dial-up circuit and produces the audio frequency dialing, control demodulator circuit simultaneously the other side's telephone signal that is fed back to by conversation-sample circuit is carried out demodulation process, the signal after the demodulation process send central control circuit to judge; When received signal is busy tone, repeat to send out again three times, if or busy tone, central control circuit instruction dial-up circuit sends second alarm call number, goes down with this, can send 15 jack per stations continuously; When received signal was ringback tone, behind 6 ringback tones and the other side's off-hook not, central control circuit instruction dial-up circuit sent next alarm call number, up to the other side's off-hook; When received signal when replying, central control circuit instruction speech processing circuit is issued the other side with the alarm voice that deposits in, plays the warning effect.

The utility model adopts the sensing element of electric capacity as warning circuit, utilize capacitance multiplier circuit and variation Darlington circuit to constitute warning circuit, adopt the monolithic process chip that speech processing circuit and dial-up circuit are controlled, realize warning function, so the utility model is simple in structure, the reliability height, telotism.

The utility model is described in further detail below in conjunction with accompanying drawing.

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

Fig. 2 is a circuit diagram of the present utility model.

By accompanying drawing as can be known, it comprises conversation-sample circuit that the electronic gate that is formed by triode V2 and triode V3 that is connected with telephone wire constitutes, conversation-sample circuit with decompose synthesis chip T6668 by voice and link to each other with speech processing circuit, demodulator circuit (forming) and the central control circuit (control chip employing PIC16C57) that two voice storage chips 41256 constitute by two 555 chips, central control circuit connects warning circuit, dial-up circuit, demodulator circuit, speech processing circuit respectively; Warning circuit is made up of the variation Darlington circuit that capacitance multiplier circuit and capacitive balance frequency converter constitute, and dial-up circuit is made of number storage chips W E9145 and digital code keyboard P.When using this reality novel, at first will in advance relevant alarm call number be imported and be deposited in the WE9145 chip of dial-up circuit by digital code keyboard P, deposit in alarm voice in 41256 chips of speech processing circuit by MIC by user's requirement then, the control chip PIC16C57 of central control circuit links to each other with warning circuit by 18 pin, when human body proximity sensing device, the appearance value as the capacitor C 9 of sensing element produces multiplication in the warning circuit under the effect of human biological electricity, the capacitance multiplication signal send 18 pin of the control chip PIC16C57 of central control circuit after the Darlington circuit of variation is handled, control chip PIC16C57 goes out instruction triggers conversation-sample circuit by 25 human hair combing wastes, make triode V5 locking MIC, make the electronic gate conducting of forming by triode V2 and V3 simultaneously, R36 and voltage-stabiliser tube D3 form constant-current source, stabling current, stablize input and output; Simultaneously, control chip PIC16C57 is given 9 pin of WE9145 by 21 pin output triggering signal, the 11 pin output audio telephone numbers of WE9145 send conversation-sample circuit, through R25, V3, V2 by a, the b end sends, callee's telephone signal of feedback send the LM324 of demodulator circuit to amplify through D4, D5, V2, is sent into by 7 pin of two 555 chips, carries out demodulation process; When if the feedback signal of callee's phone is busy tone, restituted signal inputs to PIC16C57 through 19 pin, after PIC16C57 judges, exporting a triggering signal by 22 pin makes it to reset for 8 pin of WE9145,21 pin of PIC16C57 send one to touch 9 pin that signal is given WE9145 simultaneously, trigger next alarm call number; If the feedback signal of callee's phone is a ringback tone, restituted signal inputs to PIC16C57 through 20 pin, is judged by PIC16C57, and 6 ringback tones and the other side is not during off-hook, 21 pin of PIC16C57 send one to touch 9 pin that signal is given WE9145, start next alarm call number; If the other side's off-hook, callee's phone feedback answer signal send the control chip PIC16C57 of central control circuit after the demodulator circuit demodulation, 23 pin of control chip PIC16C57 are exported the pronounciation processing chip T6668 that a triggering signal is given speech processing circuit, and T6668 work will two 41256 after synthetic processing of alarm voice of storage in advance in the chips, through C18, C16, R26, V4, V2 is by a, warning function realized in b end output alarm voice, finishes this machine of back of reporting to the police and be in stand-by state automatically.

S1 is a reset key, and S2 is a record button, and S3 is a playback button.Reset key S1 is used for removing phone and stores in dialing circuit chip WE9145 and the speech processing circuit chip 41256 for information about; S2 can make MIC change operating state over to by the warning blocking and accept to record language; S3 can make loud speaker remove the warning blocking and change the sound reproduction state over to, is used for reducing the voice of recording.

Claims

1. program control capacitance multiplication long-distance alarm apparatus, it comprises the conversation-sample circuit that is connected with telephone wire, it is characterized in that: conversation-sample circuit links to each other with speech processing circuit, dial-up circuit, demodulator circuit and central control circuit, and central control circuit connects warning circuit, dial-up circuit, demodulator circuit, speech processing circuit.

2. program control capacitance multiplication long-distance alarm apparatus according to claim 1 is characterized in that: warning circuit is made up of capacitance multiplier circuit and capacitive balance frequency converter.