CN2757474Y

CN2757474Y - Telephone warning system

Info

Publication number: CN2757474Y
Application number: CN 200420116163
Authority: CN
Inventors: 张建平
Original assignee: Individual
Current assignee: Individual
Priority date: 2004-12-03
Filing date: 2004-12-03
Publication date: 2006-02-08
Anticipated expiration: 2014-12-03

Abstract

The utility model relates to a telephone warning system which comprises a power supply circuit, a radar warning device, a grading detection wireless warning line, an antenna, a receiver, a talking circuit, a music IC circuit, an observation circuit and an amplifying circuit. The utility model also comprises a signal decoding output circuit, a telephone power supply wakening circuit, a dialling control circuit and a number memory, wherein the signal decoding output circuit decodes signals received by the receiver and outputs the signals to the telephone power supply wakening circuit and the dialling control circuit. The dialling control circuit is connected with the number memory, and the telephone power supply wakening circuit is connected with the power supply end of a telephone. The utility model makes full use of public telephone network resources, and makes up for the defect of passivity or inaction of the telephone in a burglary prevention process. The system arranged in the telephone is combined with a grading detection wireless warning system, and a warning network with the advantages of powerful function and low cost can be formed. The warning of the utility model does not need manual operation, and the unattended automatic warning function is realized.

Description

Telephone alerting system

Technical field

The utility model relates to a kind of intelligent safety system, relates to a kind of telephone alerting system more specifically.

Background technology

Telephone alerting system of the prior art is generally Passive Mode, and promptly the staff needs manual dialing the police emergency number after receiving alarm signal, adopts the warning system of this kind mode to need the staff day and night on duty, can't realize management automation; The dedicated network communication of another kind of warning system of the prior art by laying, network range is limited, and the construction cost height.

The utility model content

The purpose of this utility model is to overcome problems of the prior art, provides a kind of installation simple, telephone alerting system easy to use.

For achieving the above object, telephone alerting system of the present utility model comprises power circuit, radar alarm, classification detecting wireless alarm circuit, antenna, receiver, speaking circuit, music IC circuit, monitoring circuit, amplifying circuit, also comprises signal decoding output circuit, telephone power wake-up circuit, dialing control circuit and number memory; The signal decoding that the signal decoding output circuit receives receiver also exports the telephone power wake-up circuit to and the dialing control circuit, and the dialing control circuit links to each other with number memory, and the telephone power wake-up circuit links to each other with the telephone power end.

The utility model has made full use of the public telephone network resource, remedied telephone set passive or adiaphorous deficiency in antitheft, be installed in the phone native system in conjunction with extension set detecting wireless warning system can composition function powerful, warning net cheaply, its warning need not manual operation, has realized unattended automatic warning function.

Description of drawings

Fig. 1 is the schematic diagram of telephone alerting system of the present utility model.

Fig. 2 is the circuit diagram of telephone alerting system of the present utility model.

Embodiment

With reference to Fig. 1,2, the warning system in the present embodiment comprises power circuit 1, extension set detecting wireless warning system 2, receiver 3, signal decoding output circuit 4, radar alarm 5, music IC6, monitoring circuit 7, one-level amplifying circuit 8, second amplifying circuit 9, number memory 10, speaking circuit 11, dialing control circuit 12, telephone power wake-up circuit 13.The signal decoding that signal decoding output circuit 4 receives receiver 3 also exports telephone power wake-up circuit 13 to and dialing control circuit 12, and dialing control circuit 12 links to each other with number memory 10, and telephone power wake-up circuit 13 links to each other with the telephone power end.

Signal decoding output circuit 4, dialing control circuit 12 and telephone power wake-up circuit 13 comprise decoding CPU, inverter U1, U2, U3, U8, comparator U4, U5, NPN type triode Q1-Q5, diode D1, D2, switch SW 3, capacitor C 1-C5, and resistance R 1-R14.The output of decoding CPU4 output and radar alarm links to each other with inverter U1 input by resistance, inverter U1 output connects inverter U2 input, the output of U2 is divided into three the tunnel, wherein two-way passes through R4 respectively, R5 inserts the in-phase end of comparator U4, U5 so that comparative level to be provided, resistance R 9, R10, R11 series connection, R9 meets V _Cc, R11 ground connection; The end of oppisite phase of comparator U4, U5 links to each other with the two ends of R10 respectively to obtain reference level, also be parallel with the delay circuit, the U4 output that constitute by resistance R 4 and capacitor C1 between the input of comparator U4 and ground and be divided into two-way, the resistance R 12 of leading up to links to each other with the base stage of NPN triode Q5, and another road links to each other with the negative electrode of diode D1 and the collector electrode of triode Q3 respectively; The emitter and collector of Q5 links to each other with repertory dialler memory 10 dialing button sections and controls dialing; The base stage of Q3 is by capacitor C3 ground connection, and transmitter links to each other with the anode of diode D1 and the power input of I and II amplifying circuit respectively; The output of comparator U5 links to each other with the base stage of NPN triode Q4 by resistance R 13, and the emitter and collector of Q4 wakes end up with telephone power and links to each other with the control telephone power.Another road of the output of inverter U2 is connected into the input of inverter U3 by resistance R 5, the output of U3 is connected inverter U8 input by parallel resistor R14 with diode D2, the anode of diode D2 connects the output of U3, negative electrode connects the input of U8, the input of U8 is by capacitor C5 ground connection, output divides two-way, and the resistance R 7 of leading up to connects the base stage of triode Q1, and another road links to each other with the base stage of triode Q2 by resistance R 8; The collector electrode of triode Q1 connects the output of decoding CPU4, grounded emitter; The collector electrode of triode Q2 links to each other with the input of inverter U3, and grounded emitter also is connected with capacitor C2 between the collector and emitter of Q2.

When extension set detecting wireless warning system detects alarm signal, can send the wireless alert signal and give wireless receiver, after decoding, export a high level, pass through U1, after twice of U2 is anti-phase, export to U4 by U2, the U5 in-phase end, the comparison pole tension of U4 than the in-phase end voltage signal of U5 height and U4 through R2, R4, C1 postpones, and the relative U5 of the output of U4 is slightly slow, so the conducting of Q4 elder generation, the dynamo-electric source of morning call, Q5 conducting subsequently, the output dialed number satisfies the sequential that dials behind the first morning call machine, the sound circuit power supply of dialing back, this moment, respondent's off-hook can be heard music earlier, heard the voice that listen to subsequently.

When system works, R5 charges to C2, and the input as U3 during the charging of C2 reaches

V _CcThe time, U3 exports high level, road direction C13 charging, and be the blanking time of work the discharge time of C13; SW3 is a main power switch, after this system is activated periodic duty is disconnected until SW3.

Claims

1. a telephone alerting system comprises power circuit, radar alarm, classification detecting wireless alarm circuit, antenna, receiver, speaking circuit, music IC circuit, monitoring circuit, amplifying circuit, it is characterized in that: also comprise signal decoding output circuit, telephone power wake-up circuit, dialing control circuit and number memory, the signal decoding that the signal decoding output circuit receives receiver also exports the telephone power wake-up circuit to and the dialing control circuit, the dialing control circuit links to each other with number memory, and the telephone power wake-up circuit links to each other with the telephone power end.