CN2489414Y

CN2489414Y - Fireproof theft-proof automatic dialing alarm for telephone

Info

Publication number: CN2489414Y
Application number: CN 00241348
Authority: CN
Inventors: 周汉明
Original assignee: Individual
Current assignee: Individual
Priority date: 2000-06-19
Filing date: 2000-06-19
Publication date: 2002-05-01
Anticipated expiration: 2010-06-19

Abstract

The utility model relates to a fireproof and theft-proof automatic dialing alarm for telephone, which is a new fireproof theft-proof safe electronic device making use of modern electrommunication device. A theft-proof circuit system consists of three auto-delay switch circuits and a self-lock circuit, and a prior smoke eliminate circuit is switched into the theft-proof circuit system to form an integrated circuit system of fireproof theft-proof automatic dialing alarm for telephone. The utility model has the advantages of simple circuit, low power consumption, safety and credibility, as well as good practicability and easy operation. The utility model can automatically finish the function of dialing alarm for telephone without person, thus avoiding or reducing the property losses of state, collectivity and individuals. As a necessary electronic device of fireproof theft-proof and safety ensuring, the utility model can be widely used in home, the service sector, government departments, etc.

Description

Fire-proof and theft-proof telephone automatic dialing alarm

The utility model relates to and a kind ofly carries out the electronic installation of automatic dialing alarm by telephone set to user's mobile phone, BB machine and other telephone set, especially indoor nobody the time breaking out of fire or theft can in time report to the police.

At present, known telephone set only has the communication effect, does not have the function of fire-proof and theft-proof automatic dialing alarm.

The purpose of this utility model provides a kind of telephone set that fire-proof and theft-proof automatic dialing alarm device is arranged, and it is not only a kind of communication apparatus, and can in time dial automatically when indoor breaking out of fire or theft and report to the police to user's mobile phone, BB machine and outside telephone stations.

The purpose of this utility model is achieved in that by relay J ₁, transistor BG ₁, BG ₂, power switch K ₁, resistance R ₁, R ₂, R ₃, R ₄Crystal diode D ₁, electrolytic condenser C ₁Form first Auto-delay switch circuit.Tuning R ₁Resistance value can set J ₁The delay switch time, generally be set in 30 seconds～120 seconds.The user also can be to setting up on their own according to withdrawing from room to the required time of closing the door.Door switch K ₂With relay J ₁Form latching circuit.K switch ₃Form fireproof circuit with the existing automatic smoke exhausting circuit of employing.Before the user gos out, the indoor electric phone is transferred to set call number earlier.For example: 4222558 or 1278950679, the machine that needless to say returns is promptly hung up the telephone, and turns on the power switch K subsequently ₁, K ₃, in the delay time of setting, withdraw from the room and shut up the door carefully, at this moment door switch K ₂Open circuit, this device is in wait state.In case the unlatching door, door switch K ₂Moment, closure made relay J ₂Action enters the circuit self-locking and connects by relay J ₃, transistor BG ₃, BG ₄, resistance R ₅, R ₆, R ₇, R ₈, R ₉, crystal diode D ₂, electrolytic condenser C ₂Second Auto-delay switch circuit forming, relay J at this moment ₃The Hands-free key HANDFREE of telephone set is connected in action, and phone is in talking state, tuning R ₅Resistance value can set the turn-off time, generally be set in 30 seconds～60 seconds; Simultaneously by relay J ₄, transistor BG ₅, BG ₆, resistance R ₉, R ₁₀, R ₁₁, R ₁₂, crystal diode D ₃, electrolytic condenser C ₃The 3rd the Auto-delay switch circuit working of forming, relay J ₄The redial key REDIAL of telephone set is connected in action, and this indoor electric phone is promptly by the call number automatic dialing alarm of setting before going out, tuning R ₉Resistance value, can set the time of connecting redial key, generally be set in 1 second～10 seconds.

Owing to adopted foregoing circuit, made the new function that has had fire-proof and theft-proof as the telephone set of communication apparatus.

Below in conjunction with accompanying drawing the utility model is further specified.

Fig. 1 is an electrical schematic diagram of the present utility model.

Fig. 2 is the block scheme that the utility model adopts existing automatic smoke exhausting circuit.

The complete machine working power adopts the 6-9V direct current, and the waiting status working current is 1mA, and the alarm condition working current is 20～30mA.Transistor all adopts the 3DG201A model, and diode all adopts the 2CZ11 model, and relay adopts all that volume is little, highly sensitive, operating voltage is 6-9V, the DC relay about working current 10mA, R ₁, R ₅, R ₉Adopt 500K Ω adjustable resistance, R ₂, R ₆, R ₁₀Adopt 20K Ω fixed resistance, R ₃, R ₇, R ₁₁Adopt 47 Ω fixed resistances, C ₁, C ₂, C ₃Adopt the 900uF electrolytic condenser.

In Fig. 1, turn on the power switch K ₁, electric current is through R ₁, R ₂, to C ₁Charging, tuning R ₁Resistance value can change to C ₁The time of charging promptly determines time of delay switch, this moment BG ₁B pole tension＜0.5V is in cut-off state, so electric current is through R ₄Make BG ₂B pole tension＞0.5V, BG ₂Conducting makes J ₁The moving contact adhesive is cut off the electricity supply and J ₂, K ₂Connection, C in 30 seconds～120 seconds of setting ₁It is saturated to charge gradually, BG ₁B pole tension rising＞0.5V, BG ₁Conducting makes BG ₂The b pole tension descends, BG ₂End J ₁Moving contact discharges and makes positive electrode of power and J ₂, K ₂Connect, circuit enters the fire-proof and theft-proof wait state, if open door, door switch K this moment ₂Closure, electric current is through K ₂Flow to J ₂, J ₂The moving contact adhesive makes circuit enter self-locking state, even cut off K switch immediately ₂Or connecting line, do not influence power supply through J yet ₂Connect second, third delay switch circuit, at this moment, the J in second delay switch circuit ₃The Hands-free key of telephone set is connected in action, the J in the 3rd delay switch circuit ₂The redial key of telephone set is connected in action, and telephone set is promptly by the call number automatic dialing alarm of setting, and second, third delay switch circuit electricity principle is identical with first delay switch circuit electricity principle.

In Fig. 2, turn on the power switch K ₃, the automatic smoke exhausting circuit working.In case indoor breaking out of fire, sensor will be transformed into the smog that detects electric signal and be transported to automatic control circuit, thereby make the actuating of relay, because of the J of this relay and Fig. 1 ₂, K ₂Parallel connection is so can make J ₂Adhesive, and connect second, third delay switch circuit and carry out fireproof alarming.

Claims

1, a kind of fire-proof and theft-proof telephone automatic dialing alarm, it is characterized in that: the Auto-delay switch circuit is connected with latching circuit, and the Auto-delay switch circuit is connected with the Hands-free key of telephone set, and the Auto-delay switch circuit is connected with the redial key of telephone set.

2, fire-proof and theft-proof telephone automatic dialing alarm according to claim 1, it is characterized in that: the automatic smoke exhausting circuit is connected with Auto-delay switch circuit and latching circuit.