CN2250603Y - Automatic alarming telephone set - Google Patents

Abstract

The utility model relates to an automatic alarming telephone set. An existing alarming telephone has the defects of complicated structure, high cost, and alarm can not be realized when the line is busy. The utility model is characterized in that a charging circuit is composed of resistors R1 and R2 and a capacitor C1, an electrode b of a triode T1 is connected in series with the R2, an electrode C is connected in series with a J1, and an electrode e is connected with a negative electrode; a diode D1 is connected in parallel with the J1; a J3 is connected in parallel with the C1; an R4, an R5, a C3, a T3, a D3, and a J3 form a circuit which is the same as the circuit; a C2 is connected in series with an R3, an electrode b of a T2 is connected in series with the R3, an electrode c is connected in series with a J2, an electrode e is connected with the negative electrode; a D2 is connected in parallel with the J2, and the J2 is connected in parallel with the C2; a normally open contact of the J2 is connected with a switch hook; a normally open contact of the J3 is connected with a direct memory button. The utility model is suitable for alarm of robbery, fire, theft resistance, etc.

Description

Automatically alarming telephone set

The utility model relates to a kind of telephone set, especially has the telephone set of automatic calling for help, warning function.

Chinese patent 92243100.0 has proposed a kind of automatic medical and has called for help telephone set, and this machine reaches the distress call transmitter of being carried by patient by the telephone set network that can store and access telephone number and distress call receiver, signal tone detector, solid-state cassette player, monolithic computer and constitutes.This machine operation principle is that patient sends to distress call on the fixing telephone set by the distress call transmitter of carrying, and the operator on duty can obtain distress call like this.Because this machine structure is complicated, causes cost higher; The necessary Attended mode of the phone of received signal, the line is busy just can not put through if meet, and makes the people can not in time obtain distress call, and this is unfavorable for popularizing.

The purpose of this utility model be to overcome above-mentioned weak point of the prior art and provide a kind of simple in structure, cost is low, do not influence original telephone set performance and receive convenient, the effective automatically alarming telephone set of alarm signal.

The purpose of this utility model can reach by following measure: the utility model comprises the hook switch (or Hands-free key) of telephone set, direct memory button, it is characterized in that forming charging circuit by resistance R 1, R2 and capacitor C 1, the b utmost point and resistance R 2 series connection of one triode T1 are arranged, its C utmost point and relay J 1 series connection, its e utmost point connects power cathode; One diode D1 and relay J 1 parallel connection are arranged; One relay J 3 and capacitor C 1 parallel connection are arranged; Form charging circuit by resistance R 4, R5 and capacitor C 3 in addition, the b utmost point and resistance R 5 series connection of a triode T3 are arranged, its c utmost point and relay J 3 series connection, its e utmost point connects power cathode; One diode D3 and relay J 3 parallel connections are arranged, a relay J 2 and capacitor C 3 parallel connections are arranged; Also have one to constitute charging circuit, the b utmost point and resistance R 3 series connection of a triode T2 are arranged by capacitor C 2 and resistance R 3 series connection, its c utmost point and relay J 2 series connection, its e utmost point connects power cathode; One diode D2 and relay J 2 parallel connections are arranged, a relay J 1 and capacitor C 2 parallel connections are arranged; The external telephone hook switch of normally opened contact 2--4 (or Hands-free key) of relay J 2; The direct memory button of the external telephone set of normally opened contact 2--4 of relay J 3.

Fig. 1 is the utility model electrical block diagram;

Fig. 2 is Fig. 1 repeat circuit J2 and telephone hook switch connection diagram;

Fig. 3 is the direct memory button connection diagram of Fig. 1 repeat circuit J3 and telephone set:

Fig. 4 is the utility model operating state schematic block diagram.

The utility model is described in further detail below in conjunction with (accompanying drawing) embodiment: shown in Figure 1, K1, K2 are the external signal interface, form a charging circuit by resistance R 1, R2 and capacitor C 1, and this circuit is used for the conducting of control switch triode T1 and ends; The b utmost point of triode T1 and resistance R 2 series connection, its c utmost point and relay J 1 series connection, its e utmost point connects power cathode; One diode D1 and relay J 1 parallel connection are arranged, J1 is shielded; One relay J 3 and capacitor C 1 parallel connection are arranged, and promptly the normally opened contact 1--3 of J3 controls C1; Form charging circuit by resistance R 4, R5 and capacitor C 3, this circuit is used to control the conducting of triode T3 and end, the b utmost point of triode T3 and resistance R 5 series connection, and its c utmost point and relay J 3 series connection, its e utmost point connects power cathode; One diode S3 and relay J 3 parallel connections are arranged, J3 is shielded; One relay J 2 and capacitor C 3 parallel connections are arranged, i.e. the normally-closed contact 3--5 of J2 control C3; Constitute charging circuit by capacitor C 2 and resistance R 3, with the conducting of control switch triode T2 with end, the b utmost point of triode T2 and resistance R 3 series connection, its c utmost point and relay J 2 series connection, its e utmost point connects power cathode; One diode D2 and relay J 2 parallel connections are arranged, so that J2 is shielded; One relay J 1 and capacitor C 2 parallel connections are arranged, and promptly the normally opened contact 1--3 that discharges and recharges by J1 of C2 controls; As Fig. 2, the external telephone hook switch of normally opened contact 2--4 (or Hands-free key) 1 of relay J 2; As Fig. 3, the direct memory button 2 of the external telephone set of normally opened contact 2--4 of relay J 3.So just constitute the designed Automatic alarm telephone of the utility model.As Fig. 4,5 is external power supply, 4 is automatic retransmitter, it is structure part shown in Figure 1,3 is telephone set, and K1 is external alarm signal interface (disconnects under the normal condition, have when warning to connect), K2 also is external alarm signal interface (being applicable to that alarm signal just often is on-state, has situation about disconnecting when reporting to the police).The utility model operation principle is as follows: as Fig. 1, Fig. 2, Fig. 3, Fig. 4, K1, K2 are the external alarm signal interface among the figure, 1 is hook switch (or Hands-free key), 2 is direct memory button, hook switch of telephone set (or Hands-free key) 1 and direct memory button 2 respectively are equivalent to a switch, and therefore available relay is controlled its break-make.If alarm signal just often hook switch 1 is in off-state with direct memory button 2, and it is connected to the K1 two ends, K2 is disconnected.If alarm signal occurs, then K1 connects, relay J 2 actions, and its normally opened contact 2--4 connects hook switch 1 (or Hands-free key), and send dialing tone, normally-closed contact 3--5 disconnected and made capacitor C 3 chargings this moment, and J3 action after of short duration time-delay is connected its normally opened contact 1--3, short-circuit condition C1, J1 akinesia, its normally opened contact 2--4 connects direct memory button, and the telephone number (as 127--10274110) that then is stored in advance in the telephone set sends automatically, makes the beeper of appointment receive alarm signal.When K1 connected, C2 began charging (about 12 seconds of charging interval), and the J2 time-delay was discharged after 12 seconds, and its normally-closed contact 3--5 also discharges J3 the C3 short circuit, and telephone set is ready again like this.This moment, the normally opened contact 1--3 of J3 disconnected, and C1 begins charging.J1 action after more than 10 seconds, the normally opened contact 1--3 of J1 connects, make the C2 short circuit dischange, J2 is adhesive again, repeat above process, make telephone set send alarm signal continuously, avoided only sending situation about once might not put through like this and taken place,, then it can be connected to the K2 two ends if external alarm signal is in on-position usually because of the line is busy, need this moment K1 is connected, because K2 short circuit C1 always, thus circuit promptly be failure to actuate after only sending primary information, when alarm signal, K2 disconnects, and can ceaselessly send warning message as afore-mentioned.

The utility model has following advantage compared to existing technology:

Owing to set up at original telephone set and a kind ofly alarm signal can have been sent to appointment Beeper on warning circuit, and alarm signal can repeat dialing continuously, thereby can be square Just, effectively receive alarm signal, realize unattended monitoring alarm; Because Simple in structure, the dependable performance of warning circuit of design, thereby cost is low.

In addition, this device has no effect to its original function owing to do not change the original circuit of telephone set, can with the telephone set compatibility of various models, can produce separately, also can be designed into phone inside.

Claims (1)

1, a kind of automatically alarming telephone set, comprise the hook switch of telephone set or Hands-free key, direct memory button, it is characterized in that forming charging circuit, have the b utmost point of a triode T1 and resistance R 2 to connect by resistance R 1, R2 and capacitor C 1, its c utmost point and relay J 1 series connection, its e utmost point connects power cathode; One diode D1 and relay J 1 parallel connection are arranged; One relay J 3 and capacitor C 1 parallel connection are arranged; Form charging circuit by resistance R 4, R5 and capacitor C 3 in addition, the b utmost point and resistance R 5 series connection of a triode T3 are arranged, its c utmost point and relay J 3 series connection, its e utmost point connects power cathode: a diode D3 and relay J 3 parallel connections are arranged, a relay J 2 and capacitor C 3 parallel connections are arranged; Also have one to constitute charging circuit, the b utmost point and resistance R 3 series connection of a triode T2 are arranged by capacitor C 2 and resistance R 3 series connection, its c utmost point and relay J 2 series connection, its e utmost point connects power cathode; One diode D2 and relay J 2 parallel connections are arranged, a relay J 1 and capacitor C 2 parallel connections are arranged; The external telephone hook switch of normally opened contact 2--4 or the Hands-free key of relay J 2; The direct memory button of the external telephone set of normally opened contact 2--4 of relay J 3.

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