CN2247398Y - Telephone with automatic device police alarm system - Google Patents

Abstract

The utility model relates to a telephone automatic alarming device which is composed of a central control unit, a language or data memory, a speech signal processing circuit, a dual audio signal transceiver circuit, a telephone or telephone line interface, a fortification or emergent call for help button, etc., wherein, the telephone or telephone line interface comprises a status switching circuit which is composed of a relay and is connected with an audio alarm output interface. The telephone automatic alarming device has the advantages of reliable alarm, flexible and convenient use, no interference to a telephone communication network, and easy enforcement, etc. The telephone automatic alarming device can raise the alarm to a plurality of telephones and beep pagers and to designated positions through a dedicated line. The presetting and modification of all the numbers and speech sounds can be accomplished on the telephone.

Description

The telephone automatic alarm device

The utility model is a kind of telephone automatic alarm device, relates to microcontroller technology and wired communication technology.

Though can utilize telephone line transmission to report to the police, all there are deficiency in various degree on performance and the function in prior art and telephone alarm product:

When 1, removing warning and change alarm parameters, produce interference to telephone communication network by telephone key input password;

2, can not discern the whether off-hook of dialing back the other side of reporting to the police reliably, blindness is big, and warning validity is poor;

3, do not possess the function of reporting to the police simultaneously to phone and beeper;

4, the warning delay time that is used for owner's identification can not be adjusted flexibly;

5, can not arbitrarily be provided with and change a plurality of phones and beeper number/information code easily, promptly enable also complicated and inconvenience, man-machine interface is poor;

6, do not possess the output interface of directly using audio alert by special circuit.

The purpose of this utility model is in order effectively to overcome the problems referred to above, provide a kind of telephone communication network is not produced disturb, warning is reliable, easy to use, man machine operation interface is friendly, strong security, possess telephone automatic alarm device to phone and beeper warning function and audio alarm output interface simultaneously.

The utlity model has report to the police reliable, flexible and convenient to use, adapt to wide, telephone communication network is produced disturb, implement easily, low cost and other advantages, can be widely used in places such as office, secret chamber, laboratory, family, warehouse.

Implementation of the present utility model is: it comprises central control unit, voice/data memory, voice signal treatment circuit, double-audio signal transmission circuit, sensor interface and transducer, telephone set/telephone line interface, sets up defences/the distress call button, it is characterized in that: comprise a state switching circuit of forming by relay in telephone set/telephone line interface, during normal condition, telephone line directly is communicated with subscriber phone; When being in owner's identification and parameter modification, warning system and subscriber phone are connected, subsets and telephone line disconnect; When being in alarm condition, warning system and telephone line are connected.

The utility model preferably also comprises an audio alarm output interface, and it links to each other with central control unit with telephone set/telephone line interface, can directly report to the police to appointed place (as night shift room) by special circuit.

Central control unit of the present utility model can be made of PIC microcontroller and GAL gate array chip, the input port of GAL chip links to each other with the delivery outlet of PIC microcontroller, the work of the output control voice signal treatment circuit of GAL chip and the sheet choosing of voice/data memory.

Voice/data mixing memory circuit of the present utility model can be that the master constitutes by two sram chips and a slice EPROM chip, sram chip storage user recording and various number information access, EPROM chip-stored operation indicating voice; Sram chip is power down protection circuit of tyre also, and its sheet choosing end links to each other with the power down protection circuit.

Do not establish any function key on the utility model, but cooperate external subsets, set up defences/the distress call button carries out flexile control and operation.The utility model can external multichannel Thermal Infra-Red/fire sensor.

Operation principle of the present utility model is summarized as follows:

With central control unit as core control part, when being on the alert, the output of central control unit detecting sensor interface.When effective alert signal transmits, be to steal feelings or fire at first: if steal feelings according to the identification of signal source, then state switching circuit makes telephone set link to each other with warning system, and disconnect with telephone line, telephone set is powered by warning system, interfering phone communication network not, and warning system is waited for and is received the presetting cipher of importing from the dual tone phone machine, if password is correct, then enters warning and remove attitude with the voice suggestion warning system; If within default delay time, import password bad or do not input password, then central control unit is at first connected the audio alarm output interface, and control voice signal treatment circuit is reported to the police by special circuit the User Alarms voice of typing in advance to appointed place (as night shift room), control warning system simulation off-hook then, connect with telephone wire, then control the double-audio signal transmission circuit and transfer to the telephone number or the beeper number of user preset, the dialing back judges whether to put through according to the output signal of call progress treatment circuit, then simulates on-hook and dials next number if the line is busy; If put through and then judge whether off-hook of the other side, after waiting for off-hook (if in setting-up time the other side's off-hook not, then simulate on-hook and dial next number) play alarm voice or send the beeper information code, automatically simulate on-hook then, and, behind beeper/telephone number of successfully having dialled all user presets, restart warning according to the telephone number repetition said process that the next one presets.If system is detected is fire alarm, does not then carry out password identification and directly enters alarm procedure.More than be the monitoring, alarming process, for the warning disarm state, central control unit only to set up defences/the distress call button state detects, if the user will leave monitoring section, clicks button, system can reenter the state of alert later at delay time; If the double button application distress call of pressing of user, system then enters alarm procedure immediately, returns the warning disarm state after having reported to the police.

The utility model utilizes subsets to finish the setting of all numbers, voice and delay time under the voice menu prompting.Voice suggestion is divided into main menu and submenu, pass to telephone receiver by telephony interface, the user presses correspondent button on the telephone set according to prompting, can be provided with and revise password, telephone number, beeper number, beeper information code and delay time, also can and carry out operations such as self check by telephone receiver typing alarm voice.The method that enters system's setting be first use start back and each user enter under the state of alert security area input proper password and when hearing the prompt tone that warning is removed by " # " can enter the main menu of setting operation behind the key.

Below with reference to accompanying drawing the utility model is done into description.

Fig. 1 is the utility model functional-block diagram.

Fig. 2 is the circuit diagram of the utility model central control unit and sensor interface.

Fig. 3 is the utility model voice signal treatment circuit and voice/data memory circuitry figure.

Fig. 4 is the utility model telephone set/telephone line interface and audio alarm output interface circuit figure.

Fig. 5 is the utility model double-audio signal transmission circuit and call progress treatment circuit figure.

Fig. 6 is the utility model work main flow chart.

Referring to Fig. 1, the call progress treatment circuit links to each other with telephone set/telephone line interface with central control unit; The audio alarm output interface links to each other with central control unit with telephone set/telephone line interface, can directly report to the police to appointed place (as night shift room) by special circuit.

Referring to Fig. 2, central control unit is made of single chip microcontroller U1 and programmable logic array chip U6, and sensor interface is made of eight buses isolator U9.U1 adopts PIC16C57, and control program solidifies in inner ROM; U6 is GAL chip GAL16V8; U9 adopts 74HC244; The PB mouth of U1 is control mouthful, its output PB7～PB4 through recording, the playback of U6 control voice signal treatment circuit, stop the sheet choosing with the voice/data memory, record/put and the data storage/access to realize voice; The PC mouth of U1 is the data/address bus mouth, and the PA mouth is the control mouth.The input of U9 links to each other with transducer, U9 output termination data/address bus, and U1 is by U9 query sensors state.

Referring to Fig. 3, the voice signal treatment circuit is made of pronounciation processing chip U3, bus driver U10, eight D-latch U12, and the voice/data memory is made of two sram chip U4, U11 and a slice EPROM chip U2 and power down protection circuit.U3 is UM93510, and U4, U11 are HM62256, and U2 is 27C256, and U10 is 74HC245, and U12 is 74HC573.The sheet choosing end of the PLAY of U3, REC, STOP three control pin and U2 links to each other with the GAL output among Fig. 2; The sheet choosing end CS (20 pin) of U4 and U11 selects switch T7 with the sheet in the power down protection circuit, and the emitter-base bandgap grading of T6 links to each other, and the ON/OFF of T7, T6 is subjected to the control of U6 output, forbids U4, the choosing of U11 sheet when realizing power down, to prevent information dropout.Low nine bit address line A8～A0 of three memory U2, U4, U11 link to each other with address output A8～A0 of U3, the high six bit address line A14～A9 of memory link to each other with 6Q～1Q of U12, can be divided into 64 sections to every memory like this, realizing the segmentation and the combination of voice, concrete selections then by U1 from data/address bus to U12, latch into the number decision.

Referring to Fig. 4, telephone set/telephone line interface is made of the anti-big modulate circuit of sound, state switching circuit, polar protective circuit, impedance matching circuit.The anti-big modulate circuit of sound is that the master constitutes by four high guaily unit U8, and U8 adopts LM324.State switching circuit is made of relay J 1, J2, is respectively single-pole double throw and four blade double-throw relay, J1 control simulation off-hook, on-hook, J2 control telephone set connection status.During normal condition, J1, J2 discharge, and telephone line directly is communicated with subscriber phone; When being in owner's identification and parameter modification, J1 discharges, the J2 adhesive, and warning system and subscriber phone are connected, and subsets and telephone line disconnect, and telephone wire are not caused interference; When being in alarm condition, the J1 adhesive, J2 discharges, and warning system links to each other with telephone line.The full-bridge that diode D4～D7 forms is a polar protective circuit.R8, R9, C35, T4, T3, R7 are for realizing the impedance matching circuit of simulation off-hook.The audio alarm output interface is made of analog switch U14, and its input links to each other with U8:D, and the control end of analog switch links to each other with the output of PIC, and U14 is CD4066.C36 and balancing transformer TR1 constitute the passage of sound coupling, TR1 also has two effects: the buffer action of telephone wire preventing the interference to telephone line, is played during local state to the direct current channel of phone power supply and does in order to realize and can be coupled to the voice signal that exchanges secondary effectively again for telephone set step-down power supply.Amplifier U8:A and D2, D3, R16, R10 constitute automatic gain control circuit, are not subjected to the influence of sound size in a minute with the effect that guarantees recording.1 pin of U8:A links to each other with the input of U5, U13; U8:B and peripheral cell constitute low pass filter; U8:C constitutes adder circuit, can receive the dtmf signal of U5 output and the voice signal that U3 emits.U8:D is the buffering output stage, and it exports one tunnel 1 pin of delivering to audio alert output interface U14:A, the one tunnel through R52, C38 to TR1 time grade, be coupled through TR1 again and output to telephone wire or telephone set.Z1 point in the circuit links to each other with the phonetic entry pin ADI of U3 among Fig. 3, and output links to each other after R19, R20 addition the voice of U3 with prompt tone among Z2 point and Fig. 3.

Referring to Fig. 5, the double-audio signal transmission circuit is made of double-audio signal transceiving chip U5, and U5 adopts MT8880, and the call progress treatment circuit is made of audio phase locking ring U13, and U13 adopts LM567.U5 data terminal D3～D0 welding system bus D3～D0, the RSI end of U5 links to each other with D5～D4 with the R/W end, and the U5 chip selection cs end links to each other with the 8Q of U12 among Fig. 3, and the CP of U5 directly links to each other with U1 delivery outlet PA1 among Fig. 2, and broken ends of fractured bone IRQ links to each other with U1 input port PA2 among the U5.The output DTMFO of U5, input IN link to each other with output, the input of phone/telephone line interface respectively.U1 also can receive the DTMF number that the user dials from telephone set by CS, RSI, R/W end and the D3～both available dtmf dialing of D0 control U5 to U5, also can cooperate according to its interrupt status and finish call progress state identification.The peripheral cell R45 of U13, VR1 and C30 determine that its center locking frequency is 450Hz, the signal input of U13 is in parallel with the input of U5, the call signal sound of various 450Hz on the telephone wire changes different duty into through U13 square wave outputs to the input PA0 of U1 from the OUT end, U1 judges these square waves, and what can determine exactly that phone line is come after the dialing in conjunction with the CALL mode state of U5 is busy tone, ring-back tone still is a dialing tone etc., and can know put through after the other side's off-hook whether, thereby decision redials or begins to send alert information (voice or beeper information code), with validity and the accuracy that guarantees to report to the police.

Fig. 6 is the utility model work main flow chart, further illustrates the groundwork process of alarm.

Claims (4)

1, a kind of telephone automatic alarm device, it comprises: central control unit, voice/data memory, voice signal treatment circuit, double-audio signal transmission circuit, sensor interface and transducer, telephone set/telephone line interface, set up defences/the distress call button, it is characterized in that: comprise a state switching circuit of forming by relay in telephone set/telephone line interface, during normal condition, telephone line directly is communicated with subscriber phone; When being in owner's identification and parameter modification, warning system and subsets are connected, subsets and telephone line disconnect; When being in alarm condition, warning system and telephone line are connected.

2, telephone automatic alarm device according to claim 1 is characterized in that comprising an audio alarm output interface, and it links to each other with central control unit with telephone set/telephone line interface, can directly report to the police to appointed place (as night shift room) by special circuit.

3, telephone automatic alarm device according to claim 1 and 2, it is characterized in that central control unit is made of PIC microcontroller and GAL gate array chip, the input port of GAL chip links to each other with the delivery outlet of PIC microcontroller, the work of the output control voice signal treatment circuit of GAL chip and the sheet choosing of voice/data memory.

4, telephone automatic alarm device according to claim 1 and 2, it is characterized in that voice/data mixing memory circuit is that the master constitutes by two sram chips and a slice EPROM chip, sram chip storage user recording and various number information access, EPROM chip accessing operation suggestion voice; Sram chip is power down protection circuit of tyre also, and its sheet choosing end links to each other with the power down protection circuit.

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