CN2922308Y - Telephone set - Google Patents

Abstract

The utility model relates to a telephone set with an alarm function on telephone wiring failure, which comprises a communicating circuit and an alarm circuit comprising a signal rectification detecting circuit, a logical speech control circuit, a speech synthesis circuit, a driving/amplifying circuit and a power indicator circuit etc; the telephone set can effectively monitor the condition of telephone wiring, which has the audio alarming function for the failures of telephone line short-circuit, line breaking and line mixing, users can be informed in time for application of failure correction, and can be prevented from the different losses due to the wiring failure; the utility model can effectively trigger a failure alarm for telephone wiring, which has the advantages of less elements, easy operation and utilization, stable and reliable circuit as well as accurate alarm in time.

Description

A kind of telephone set

Technical field

The utility model relates to a kind of telephone set with telephone line fault alarm function.

Background technology

Along with the continuous development of communication career, phone has become requisite liaison method and office tools.Yet because the influence of various factors makes telephone line that faults such as telephone wire short circuit, broken string, swinging cross take place often; Existing telephone line fault generally is to accuse to the telecommunication department Shen after the user finds, carry out repair process by telecommunication department, from line fault to the discovery fault is long process, have only as the user to reuse phone and find that just the phone is out of order, this time generally all will half an hour between the several hrs.Phone is as office, enterprise, unit, individual important office tools and agencies of liaison, in case the telephone line fault takes place, causes phone normally to use, if the user can't learn immediately that fault takes place, this with normally the carrying out of work delays, will cause very serious consequence, all the more so for some industries and special place, for example bank, hospital, security against fire, government offices and each family; To this, telecommunication department and phone user wish can solve this difficult problem, but never be solved; And do not find the product of telephone line fault alarm in the market.

Summary of the invention

The purpose of this utility model provides a kind of telephone set, the purpose of reporting to the police automatically during faults such as the realization telephone line is short-circuited, broken string, swinging cross.

The purpose of this utility model is such realization, a kind of telephone set is provided, it is characterized in that except comprising communicating circuit it also comprises the warning circuit of being made up of signal rectification testing circuit, logic voice control circuit, sound-compound-circuit, promotion amplifying circuit, power indicating circuit; Under the telephone line normal condition, the A3 of the signal rectification testing circuit that is connected with telephone wire, the direct voltage of B3 line is through diode rectification bridge circuit 2CZ1-4 rectification, the A line that guarantees circuit is anodal, the B line is a negative pole, pact+48V voltage is through resistance R 1 current limliting step-down on circuit A line, voltage stabilizing didoe 2CW voltage stabilizing, form the signal rectification testing circuit to B line negative pole, and in the formation 5V left and right sides, voltage stabilizing didoe 2CW two ends voltage difference, capacitor C 1 keeps voltage stabilizing didoe 2CW two ends that lasting 5V left and right sides voltage is arranged under ringing condition, voltage stabilizing didoe 2CW positive pole is delivered to the logic voice control circuit with 5V voltage, through resistance R 2 to the b utmost point of triode 3G1 to e best power supply E negative pole, make triode 3G1 conducting; Present logic low at the C of the triode 3G1 utmost point, deliver to 2 pin of the speech chip 10535 of sound-compound-circuit, speech chip is quit work do not report to the police.When the telephone line fault takes place, can not get 5V voltage at voltage stabilizing didoe 2CW two ends, the triode 3G1 of logic control circuit ends, and 2 pin of the speech chip 10535 of sound-compound-circuit obtain power supply E and send high level here through resistance R 4, make sound-compound-circuit work; 4 pin of speech chip 10535 are sent high level to the triode 3G2 that promotes amplifying circuit, make triode 3G2 conducting, form the loop with loud speaker Y and power supply E, promote loud speaker Y sounding alarm.

Owing to adopted such scheme, utilize direct voltage that telephone line provides as the signal acquisition source, in case the short circuit of circuit generation telephone wire, faults such as broken string, swinging cross, the warning of promptly sounding of alarm loud speaker, so can inform in time that the user takes measures; The utility model telephone set can the effective monitoring telephone line the whether normal and warning of when fault takes place, sounding at once, in time notice subscriber complaint fault restoration makes the user avoid the various losses that cause because of line fault, communicating interrupt, contact interruption; This circuit is simple and reliable, and telephone line is had no effect, and plays the day and night fault alarm effect of monitoring phone circuit; Simultaneously, because it is to utilize direct voltage that telephone line provides as the signal acquisition source, therefore can also realize the purpose of telephone line cable cutting-theft-proof alarm; The more important thing is that it can be used for fault alarm into fixed telephone line for general user, it is simple to operate, easy to use, circuit is reliable and stable, report to the police promptly and accurately, and can be widely used in places such as office, enterprise, unit, individual family, and easy for installation, lineman, with can oneself finishing installation per family.

Description of drawings

Fig. 1 is the functional-block diagram of warning circuit of the present utility model;

Fig. 2 is the circuit theory diagrams of functional-block diagram shown in Figure 1.

Embodiment

Accompanying drawing is embodiment of the present utility model.

Below in conjunction with drawings and Examples the utility model is further specified.

Among Fig. 1,1 is the signal rectification testing circuit, and 2 is the logic voice control circuit, and 3 is sound-compound-circuit, and 4 for promoting amplifying circuit, and 5 is circuit such as power supply indication; 0 is outside line.

Circuit theory diagrams of the present utility model are provided by Fig. 2, in Fig. 2, and the warning circuit of forming by signal rectification testing circuit, logic voice control circuit, sound-compound-circuit, promotion amplifying circuit, power indicating circuit;＜1〉diode rectification bridge circuit 2CZ1-4, resistance R 1, voltage stabilizing didoe 2CW, the capacitor C 1 be made up of 4 diodes of described signal rectification testing circuit formed, it is connected with outside line access line A2, the B2 line of telephone set by A3, B3 line on the one hand, links to each other with the logic voice control circuit on the other hand;＜2〉described logic voice control circuit is made up of resistance R 2, resistance R 3, triode 3G1, and it connects the signal rectification testing circuit on the one hand, connects sound-compound-circuit on the one hand;＜3〉sound-compound-circuit is made up of speech chip 10535, and it connects the logic voice control circuit by 2 pin of speech chip 10535 on the one hand, and 4 pin by speech chip 10535 connect the promotion amplifying circuit on the one hand;＜4〉promote amplifying circuit and be made up of resistance R 6, triode 3G2, loud speaker Y, it connects sound-compound-circuit on the one hand, connects power indicating circuit on the one hand;＜5〉power indicating circuit is made up of light-emitting diode 2CF, resistance R 7, power supply E, K switch, and it is connected with the promotion amplifying circuit.

In Fig. 2, between the A3 of＜1〉signal rectification testing circuit, the B3 line, be in series with diode rectification bridge circuit 2CZ1-4, the output of diode rectification bridge circuit 2CZ1-4 is respectively A, B line; Behind the series resistance R1, voltage stabilizing didoe 2CW, capacitor C 1 are connected in parallel between A line and the B line in turn on the A line, and the B line directly links to each other with the negative pole of power supply E;＜2〉be in series with resistance R 2 between the base stage b of triode 3G1 and the resistance R 1, be in series with resistance R 3 between the base stage b of triode 3G1 and the B line, the emitter e of triode 3G1 directly links to each other with the negative pole of power supply E;＜3〉the collector electrode c of triode 3G1 links to each other with power supply E3 with resistance R 4, K switch back in sequential series, the collector electrode c of triode 3G1 directly links to each other with 2 pin of sound-compound-circuit by speech chip 10535,9 pin of speech chip 10535 directly link to each other with the negative pole of power supply E, in sequential series between the collector electrode c of triode 3G1 and 3 pin of speech chip 10535 have resistance R 4 and a resistance R 5, be in series with resistance R 4 between the collector electrode c of triode 3G1 and 1 pin of speech chip 10535, be in series with resistance R 6 between 4 pin of speech chip 10535 and the negative pole of power supply E;＜4〉4 pin of speech chip 10535 directly link to each other with the base stage b of triode 3G2, are in series with loud speaker Y between the collector electrode c of triode 3G2 and the K switch, and the emitter e of triode 3G2 directly links to each other with the negative pole of power supply E;＜5〉K switch, light-emitting diode 2CF, resistance R 7, in sequential series between the both positive and negative polarity of power supply E.

Circuit working process of the present utility model is as follows:

Telephone line just often, circuit is in static state: signal rectification testing circuit A3, the outside line that B3 is connected on telephone set inserts line A2, on the B2 line, under the telephone line normal condition, A3, the B3 line is through 4 diode rectification bridge circuit 2CZ1-4 rectification, the A line that guarantees circuit is+utmost point, the B line is an one-level, pact+48V voltage is through resistance R 1 current limliting step-down on circuit A line, voltage stabilizing didoe 2CW voltage stabilizing, form the signal rectification testing circuit to B line negative pole, at this moment form 5V left and right sides voltage difference at voltage stabilizing didoe 2CW two ends, capacitor C 1 keeps voltage stabilizing didoe 2CW two ends that lasting 5V left and right sides voltage is arranged under ringing condition, voltage stabilizing didoe 2CW positive pole is delivered to the logic voice control circuit with 5V voltage, through resistance R 2 to the b utmost point of triode 3G1 to e best power supply E negative pole, make triode 3G1 conducting; Present logic low at the C of the triode 3G1 utmost point, deliver to sound-compound-circuit 2 pin, speech chip 10535 is quit work; This circuit is by power supply E power supply.

When telephone line generation swinging cross, ground connection, during fault such as it mixes, broken string, cause that promptly line voltage distribution changes, circuit is in dynamically: the outside line that signal rectification testing circuit A3, B3 are connected on telephone set inserts on line A2, the B2 line, A, B line 48V voltage change, can not get 5V voltage at voltage stabilizing didoe 2CW two ends, the triode 3G1 of logic control circuit is ended, 2 pin of the speech chip 10535 of sound-compound-circuit obtain power supply E and send high level here through resistance R 4, and sound-compound-circuit is started working.4 pin of speech chip 10535 are sent the b utmost point of high level to the triode 3G2 that promotes amplifying circuit, the positive voltage that the b utmost point obtains speech chip 10535 makes triode 3G2 conducting, positive pole forms the loop to negative pole to loud speaker Y to power supply E through the c of triode 3G2 through the e of the triode 3G2 utmost point, and telephone line fault warning purpose is alarmed, finished to the signal of sending of the speech chip 10535 of sound-compound-circuit through promoting, amplify and promoting loud speaker Y sounding; This circuit is powered as power supply E by the battery pack of telephone set, and the telephone line fault alarm was started working after K switch was closed, and the luminous expression of light-emitting diode 2CF is arranged.

The electronic component of mentioning in the Figure of description is as follows:

Resistance: R1-R7 electric capacity: C1

Diode rectification bridge circuit: 2CZ1-4 Zener diode: 2CW

Light-emitting diode: 2CF triode: 3G1-3G2

Speech chip: 10535 loud speakers: Y

Power supply: E external power supply slot: E1

Switch: K

Claims (5)

1, a kind of telephone set, it it is characterized in that: further comprising the warning circuit of being made up of signal rectification testing circuit, logic voice control circuit, sound-compound-circuit, promotion amplifying circuit, power indicating circuit of forming except comprising communicating circuit;＜1〉bridge path rectification 2CZ1-4, resistance R 1, voltage stabilizing didoe 2CW, the capacitor C 1 be made up of 4 diodes of described signal rectification testing circuit formed, it is connected with outside line access line A2, the B2 line of telephone set by A3, B3 line on the one hand, links to each other with the logic voice control circuit on the other hand;＜2〉described logic voice control circuit is made up of resistance R 2, resistance R 3, triode 3G1, and it connects the signal rectification testing circuit on the one hand, connects sound-compound-circuit on the one hand;＜3〉sound-compound-circuit is made up of speech chip 10535, and it connects the logic voice control circuit by 2 pin of speech chip 10535 on the one hand, and 4 pin by speech chip 10535 connect the promotion amplifying circuit on the one hand;＜4〉promote amplifying circuit and be made up of resistance R 6, triode 3G2, loud speaker Y, it connects sound-compound-circuit on the one hand, connects power indicating circuit on the one hand;＜5〉power indicating circuit is made up of light-emitting diode 2CF, resistance R 7, power supply E, K switch, and it is connected with the promotion amplifying circuit.

2, telephone set according to claim 1 is characterized in that:＜1〉between the A3 of signal rectification testing circuit, B3 line, be in series with diode bridge rectification circuit 2CZ1-4, the output of diode bridge rectification circuit 2CZ1-4 is respectively A, B line; Behind the series resistance R1, voltage stabilizing didoe 2CW, capacitor C 1 are connected in parallel between A line and the B line in turn on the A line, and the B line directly links to each other with the negative pole of power supply E;＜2〉be in series with resistance R 2 between the base stage b of triode 3G1 and the resistance R 1, be in series with resistance R 3 between the base stage b of triode 3G1 and the B line, the emitter e of triode 3G1 directly links to each other with the negative pole of power supply E;＜3〉the collector electrode c of triode 3G1 links to each other with power supply E with resistance R 4, K switch back in sequential series, the collector electrode c of triode 3G1 directly links to each other with 2 pin of sound-compound-circuit by speech chip 10535,9 pin of speech chip 10535 directly link to each other with the negative pole of power supply E, in sequential series between the collector electrode c of triode 3G1 and 3 pin of speech chip 10535 have resistance R 4 and a resistance R 5, be in series with resistance R 4 between the collector electrode c of triode 3G1 and 1 pin of speech chip 10535, be in series with resistance R 6 between 4 pin of speech chip 10535 and the negative pole of power supply E;＜4〉4 pin of speech chip 10535 directly link to each other with the base stage b of triode 3G2, are in series with loud speaker Y between the collector electrode c of triode 3G2 and the K switch, and the emitter e of triode 3G2 directly links to each other with the negative pole of power supply E;＜5〉K switch, light-emitting diode 2CF, resistance R 7, in sequential series between the both positive and negative polarity of power supply E.

3, telephone set according to claim 1 and 2, it is characterized in that: under the telephone line normal condition, signal rectification testing circuit A3, the B3 line is through bridge path rectification 2CZ1-4, the A line that guarantees circuit is anodal, the B line is a negative pole, pact+48V voltage is through resistance R 1 current limliting step-down on circuit A line, voltage stabilizing didoe 2CW voltage stabilizing, form the signal rectification testing circuit to B line negative pole, and in the formation 5V left and right sides, voltage stabilizing didoe 2CW two ends voltage difference, capacitor C 1 keeps voltage stabilizing didoe 2CW two ends that lasting 5V left and right sides voltage is arranged under ringing condition, voltage stabilizing didoe 2CW positive pole is delivered to the logic voice control circuit with 5V voltage, through resistance R 2 to the b utmost point of triode 3G1 to e best power supply E negative pole, make triode 3G1 conducting; Present logic low at the C of the triode 3G1 utmost point, deliver to 2 pin of the speech chip 10535 of sound-compound-circuit, speech chip 10535 is quit work do not report to the police.

4, telephone set according to claim 1 and 2, it is characterized in that: when the telephone line fault takes place, can not get 5V voltage at voltage stabilizing didoe 2CW voltage stabilizing two ends, the triode 3G1 of logic control circuit ends, 2 pin of the speech chip 10535 of sound-compound-circuit obtain power supply E and send high level here through resistance R 4, make sound-compound-circuit work; 4 pin of speech chip 10535 are sent high level to the triode 3G2 that promotes amplifying circuit, make triode 3G2 conducting, form the loop with loud speaker Y and power supply E, promote loud speaker Y sounding alarm.

5, telephone set according to claim 1 and 2 is characterized in that: power supply E is the built-in power of telephone set.

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