CN2260425Y - Passive automatic calling and alarming telephone set - Google Patents

Abstract

The utility model discloses a passive automatic calling and alarming telephone set. To be precise, via a stored-program control exchange and an automatic calling station, alarm signals are automatically transmitted in the phone number form by the alarm telephone set to BP machine users. The utility model is characterized in that the inner of the telephone set is provided with a dial control device plate which mainly comprises three units: a polarity converting unit for outside lines, composed of D2, D3, D4, D5, a unit for alarm signal detection, off-hook, time-delay and automatic on-hook, composed of transistors P1, N1 and a relay J, and a redialing pulse generator unit composed of a transistor N2, a resistor R4, a capacitor E1, E2 and a chip IC1. The utility model has the advantages of reasonable and passive structure, and convenience for the BP machine users.

Description

Passive automatic paging alarm telephone set

The utility model discloses a kind of passive automatic paging alarm telephone set, exactly it, it is a kind of any external power support that need not, and only two telephone wires of need just can be with the form of alarm signal with telephone number, by stored-program control exchange and automatic paging platform, automatically send on the beeper, make the beeper user can find a kind of warning device of alert in the short period of time.

Automatically alarming telephone set in the past, as in February, 1994, the burglar alarm telephone set of patent application numbers 92241926, it all needs internal battery or additional power source just can work, once interior external power has a power failure, alarm signal just can't send out, and its complex structure, cost are also high.Very impracticable.

The utility model purpose be a kind of without any need for additional power source, and only need an outer telephone wire and alarm sensor, after alarm telephone set receives alarm signal, promptly automatically the telephone number that stores in the phone is sent.--the send storage telephone number--automatic hand-up of promptly automatically realizing off-hook.

For realizing task of the present utility model, finish by the following technical programs: on the warning dialing control device plate that increases in ordinary telephone set, dress is by three functional units, bridge-type D2, the first module of the outside line polar switching that D3, D4, D5 constitute, L1 wherein, L2 connects outer telephone wire; The alarm signal that is made of transistor P1 and N1 and switch relay J detects, off-hook, and time-delay starts and redials the pulse generator power supply, Unit second of automatic hand-up, the B1 of relay J wherein, the B2 machine off-hook K switch of answering, lead-in wire M1, M2 transducer taking alarm; By R4, E1, E2, transistor N2, optoelectronic IC IC1 formation redials pulse generator Unit the 3rd, and wherein 5 of IC1, the 4 pin machine of answering the call is respectively stored DTMF and is heavily pulled out key pin t1, t2.

The good effect that the utility model produced mainly in the following areas, utilize every function of existing telephone set, as long as in ordinary telephone set, add element Passive Shape Control device seldom, just can realize the automatic paging warning, because of this installs all rational line constructions, make it when static state, can not power taking talk about line current, thereby, can and connect and the normal operating state of common phone is not had any change with plain old telephone part, the off-hook of common phone, ring is expected someone's call in on-hook can be not influential to the dialing control section of reporting to the police yet, thereby realized real dual-use, and power supply is taken from telephone wire in the time of dynamically, also off-hook just in time of phone this moment, the worry of safeguarding interior battery or external power has been saved in the static and dynamic support that does not need external power, brings great convenience for user's use.Transducer of the present utility model can also be a warning infrared probe etc., and can and be with a plurality of transducers.

Further specify technology contents of the present utility model below in conjunction with accompanying drawing.

Fig. 1 is the utility model circuit structure schematic diagram.

Fig. 2 is an enforcement illustration of the present utility model.See Fig. 1, D2 D3 D4 D5 constitutes the outside line polarity switching, is first module, and wherein L1, L2 are outer telephone wire line.Transistor P1 and N1 and double contact switch relay J constitute alarm signal and detect, off-hook, time-delay, and start that to redial the pulse generator unit be Unit second, and the B1 of relay J control wherein, B2 is used to the off-hook switch of the machine of answering the call, lead-out wire M1, M2 is the alarm sensor line, and E5 is the time-delay charge and discharge capacitance, and the time constant that R2, E5 constitute can be used for the time span of delaying time behind the control relay J off-hook.Transistor N2, it is Unit the 3rd that resistance R 4 and electric capacity E1, E2 and optoelectronic IC IC1 formation redial pulse generator, and wherein the 5th of IC1 the, the 4 pin machine of answering the call is stored DTMF and heavily pulled out key pin t1, t2, and redial key lead-in wire high potential meets t2, electronegative potential meets t1, and D1 is the discharge diode of electric capacity E1.

See Fig. 1 and 2, the dialing control section electricity principle of the reporting to the police course of work: as the M1 of transducer taking alarm, M2 two lines, when receiving the warning triggering signal of instantaneous short circuit, transistor P1 conducting, also conducting of transistor N1, E5 charges by R2, the relay adhesive, B1 point and the short circuit of B2 point, telephone set part off-hook, redial the pulse-generating circuit unit simultaneously and begin to obtain working power, supply voltage is a receiver off-book voltage, and electric current begins to pass through R4, E1 charges to E2, because of the E1 capacitance greater than the E2 capacitance, when E2 electric capacity charges to transistor be conducting voltage, E2 continues by the transistor base charging, and along with reducing of charging current, transistor N2 is become by conducting and ends, like this, by opto-electronic conversion integrated circuit (IC) 1 just at t2, a moment conducting of 2 acquisitions of t1 redial signal.After phone partly obtains to redial signal, promptly send the alarm call number of prior storage to telephone line, after capacitor E5 finishes by the D8 discharge, relay disconnects, the on-hook of ordinary telephone set part, E1, E2 discharge, the dialing control section of reporting to the police resets, wait next warning triggering signal, alarm call whenever is triggered and once just sends the alarm call number one time.

Exemplify most preferred embodiment below in conjunction with accompanying drawing.

Among Fig. 2, user's door 1 is installed on the wall 5, and being installed in door on 1 bottom is a magnetic 2,3rd, electronic switch, and the Xiamen magnetic 4 corresponding with magnetic to the doorstep 2 is mounted on the ground.Force one's way into a house as the people, magnetic 2 is with inswept Xiamen magnetic 4 to the doorstep, thereby on the alarm signal of the moment conducting that Xiamen magnetic 4 lead-out wire M1 and M2 obtain is delivered newspaper alert telephone set alarm control circuit mount board, the utility model warning phone just can automatically be realized off-hook--sending storing phone number--and on-hook automatically, the alarm signal of transducer triggers once, phone just repeats once above process, the alarm call number is promptly sent on user's the beeper.

Claims (2)

1. passive automatic paging alarm telephone set, the automatic paging warning dialing control device that comprises telephone set and be added in the phone is formed, it is characterized in that: report to the police in the described phone on the dialing control device plate, dress constitutes outside line polar switching first module by bridge-type D2, D3, D4, D5; By transistor P1 and N1, switch relay J, and the alarm signal testing circuit of resistance R 2 and electric capacity E5 formation, circuit for answering, delay circuit, and start the Unit second that redials pulse generator; By transistor N2, resistance R 4, electric capacity E1, E2, formation pass through that optoelectronic IC IC1 obtains be used for that number storing heavily pulls out redial pulse generator Unit the 3rd.

2. a kind of passive automatic paging alarm telephone set according to claim 1, it is characterized in that: external control line M1 and M2 on the dialing control device of reporting to the police in the described phone go up and transducer taking alarm or warning triggering signal, on (B1) of biswitch relay J one tunnel and the machine off-hook of answering K switch, (B2), another road connects on the positive pole of bridge-type D2, D3, D4, D5 power supply and resistance R 4, R5, the R7; IC1 output pin (4) and (5) machine of answering redial input (t1), (t2).

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