CN200950616Y

CN200950616Y - Automatic volume-expanded controller of telephone

Info

Publication number: CN200950616Y
Application number: CN 200620032620
Authority: CN
Inventors: 钱金辉; 贾小伟; 王柳; 于清润; 王修庞; 常大泳
Original assignee: 钱金辉
Priority date: 2006-09-25
Filing date: 2006-09-25
Publication date: 2007-09-19
Anticipated expiration: 2016-09-25

Abstract

The utility model discloses an automatic telephone sound amplification device in the field of communication technologies, and the device includes a shell. One end of the shell is power communicated with the telephone line, and the other end is communicated with the sound amplification device through a power amplification circuit. The shell also includes a central control unit, a bell detection circuit, a busy tone detection circuit, a communicative circuit, a voice prompting circuit and an audio power amplifying circuit, which are used to detect the bell stream signal, the busy tone signal, the speech signal and the preset voice prompting signal, and transmit the detected signals to the central control unit. The voice prompting signal is sent to the communicative circuit in accordance with the demands of the central processing unit. The utility model is used to amplify the audio signal power output from the communicative circuit, and the amplified signals are sent to a speaker. The utility model can realize automatic amplifying call of the telephone, and does not influence normal use of the former telephone.

Description

The phone controller that amplifies automatically

Technical field

The utility model belongs to communication technical field, relates in particular to a kind of phone controller that amplifies automatically.

Background technology

Telephone set in the telephone system of generally using can not satisfy the use needs in some specific production operation place at present, as large-scale operation place, remote spacious posies etc. such as the mobile production station of industrial and mining enterprises, coal chemical metallurgies, when phone is squeezed into, because site environment is noisy or spaciousness and telephone bell is lighter comparatively, often owing to do not hear that the tinkle of bells causes ring unanswered's situation, mistakes and causes delay; In addition, for some unattended places, cooperate video monitoring can reach the warning effect of propagandaing directed to communicate.

Summary of the invention

The utility model is too little at some particular place the tinkle of bells in order to solve above-mentioned ordinary telephone set, and shortcoming that again can't amplifying call has designed a kind of automatic amplifying call of telephone set of realizing, does not influence phone that the original call machine the uses controller that amplifies automatically again.

The technical solution adopted in the utility model is, design phone controller that amplifies automatically, comprise housing, the one end is electrically connected with telephone line, the other end is connected with loud speaker by power amplifier, it is characterized in that also comprising in the housing: central control unit, be provided with control program in it, be used to control each circuit unit work; Ring detecting circuit is used for ringing signal to circuit and detects and give central control unit with detection signal; The busy tone testing circuit is used for the busy-back signal of detection line and gives central control unit with detection signal; Speaking circuit is used for loud speaker or phone loop are handled and outputed to the voice signal of circuit; Voice warning circuit is used for the pre-stored voice cue, according to the instruction of CPU the voice suggestion signal is sent into speaking circuit; Audio power amplifying circuit is used for the audio signal of speaking circuit output is carried out power amplification, and the signal after the amplification is delivered to loud speaker.

The beneficial effects of the utility model are, controller is under the prerequisite that does not influence original phone use because this phone amplifies automatically, expanded the amplifying call function, can solve ordinary telephone sets such as large-scale operation place, remote spacious post such as mobile production station such as industrial and mining enterprises, coal chemical metallurgy preferably and answer an inconvenient difficult problem.

The utility model is described in further detail below in conjunction with drawings and Examples.

Description of drawings

Fig. 1 is each circuit connection diagram of present embodiment.

Fig. 2 is a present embodiment ring detecting circuit schematic diagram.

Fig. 3 is a present embodiment busy tone testing circuit schematic diagram.

Fig. 4 is a present embodiment speaking circuit schematic diagram.

Fig. 5 is a present embodiment voice warning circuit schematic diagram.

Embodiment

Referring to shown in Figure 1, the phone of the utility model embodiment controller that amplifies automatically can be connected with the circuit of two phone TEL1, TEL2 simultaneously.Controller comprises the housing (not shown), CPU 1, ring detecting circuit 2 ₁With 2 ₂, busy tone testing circuit 3, speaking circuit 4, voice warning circuit 5, audio power amplifier circuit 6.

Wherein CPU 1 adopts the ATMEL89C51 single-chip microcomputer, is provided with control program in it, is used to control each circuit unit work; Ring detecting circuit 2 ₁With 2 ₂Referring to Fig. 2, adopt identical known line port ring detecting circuit, its input A1, A2 respectively with phone+,-circuit is connected, output terminals A 3 connects the P1.1 and the P1.2 port of CPU respectively, is used for ringing signal to circuit and detects and give central control unit 1 with detection signal; Busy tone testing circuit 3 is referring to Fig. 3, standard peripheral circuit when adopting integrated phase-locked loop decoder LM567 and being used for speech detection is formed, the working end contact switch of its input B1 by relay J 1, J2 respectively with phone TEL1, TEL2+circuit is connected, is used for the busy-back signal of detection line and gives central control unit 1 with detection signal; Speaking circuit 4 is referring to Fig. 4, adopt general telephone communicating circuit, the working end contact switch of its E1, E2 end by relay J 1, J2 respectively with phone TEL1, TEL+,-circuit is connected, E3, E4 port connect the input of audio power amplifier circuit 6, are used for audio power amplifier circuit 6 or phone loop are handled and outputed to the voice signal of circuit; Voice warning circuit 5 is referring to Fig. 5, adopting general is the audio record circuit of core with chip I SD1800P, its input PLAYL port connects the P1.7 port of CPU 1, output a, b connect port a, the b in the speaking circuit respectively, be used for the pre-stored voice cue, the voice suggestion signal sent into speaking circuit 4 according to the instruction of CPU 1; Audio power amplifier circuit 6 adopts the universal audio amplifirer, and its input connects E3, the E4 port of speaking circuit 4, and output connects loud speaker, is used for the audio signal of speaking circuit output is carried out power amplification, and the signal after the amplification is delivered to loud speaker.

Relay J 1, J2, J3 are referring to Fig. 1, wherein J1, J2 are respectively applied for switch phone TEL1, TEL2 talking path, J3 is used for the electric power loop of switch audio power amplifier circuit 6, the control end coil of relay J 1, J2, J3 is respectively by triode T1, T2, T3 and R1, R2, R3, be connected with P1.3, P1.4, the P1.6 port of CPU 1, be used for controlling the folding of each contact, relay working end according to the control signal of CPU 1; BM1 is that ringing number is provided with toggle switch among Fig. 1, connects P2.0, the P2.1 port of CPU 1, is used for being provided with connecting phone automatically behind the ring how many times; BM2 is for forcing the on-hook time that toggle switch is set, the P2.2, the P2.3 port that connect CPU 1, the time is hung up in the pressure that is used to be provided with behind closing of the circuit, on-hook or malicious call etc. make phone the line is busy always to prevent that the calling party from forgetting, when the time arrives set point, CPU 1 can the output control signal discharge each relay, cuts off line loop and amplifier power supply.

When phone TEL1 or TEL2 have people's incoming call, ring detecting circuit 2 ₁Or 2 ₂Detect ringing number and detection signal is imported central control unit 1, when arriving still ring unanswered of set point number, central control unit 1 output signal control relay J1 or J2 contact switch closure, promptly connect the corresponding phone loop, the voice warning circuit 5 of output signal control is simultaneously offered the calling party with the information of voice prompt that prestores by speaking circuit 4.Afterwards if caller is permanent, closing relay J3 working end contact switch is then connected the power supply of audio power amplifying circuit 6, calling party's sound is gone out by loudspeaker plays, thereby realized the phone amplifying call.When multiplex telephony inserts, detecting the preferential access that the ringing pulse number of times arrives earlier set point, other mask.

Claims

1, a kind of phone controller that amplifies automatically comprises housing, and the one end is connected with telephone line, the other end is connected with loud speaker by power amplifier, it is characterized in that also comprising in the housing: central control unit (1), be provided with control program in it, be used to control each circuit unit work; Ring detecting circuit (2) is used for ringing signal to circuit and detects and give central control unit (1) with detection signal; Busy tone testing circuit (3) is used for the busy-back signal of detection line and gives central control unit (1) with detection signal; Speaking circuit (4) is used for audio power amplifier circuit (6) or phone loop are handled and outputed to the voice signal of circuit; Voice warning circuit (5) is used for the pre-stored voice cue, according to the instruction of CPU the voice suggestion signal is sent into speaking circuit; Audio power amplifier circuit (6) is used for the audio signal of speaking circuit output is carried out power amplification, and the signal after the amplification is delivered to loud speaker.

2, the phone according to claim 1 controller that amplifies automatically is characterized in that: middle central control unit (1) adopts single-chip microcomputer.

3, the phone according to claim 1 controller that amplifies automatically is characterized in that: the chip of busy tone testing circuit (3) adopts integrated phase-locked loop decoder LM567.

4, the phone according to claim 1 controller that amplifies automatically is characterized in that: the chip of voice warning circuit (5) adopts voice recording and playback ic.

5, the phone according to claim 1 controller that amplifies automatically is characterized in that: be provided with ringing number and toggle switch be set and force the on-hook time that toggle switch is set.