CN2492987Y

CN2492987Y - Automatic noise warning monitor

Info

Publication number: CN2492987Y
Application number: CN 01212440
Authority: CN
Inventors: 郑禄
Original assignee: Individual
Current assignee: Individual
Priority date: 2001-02-12
Filing date: 2001-02-12
Publication date: 2002-05-22
Anticipated expiration: 2011-02-12

Abstract

The utility model relates to an automatic noise alarm and monitoring device, which includes a noise detector, a noise alarm signal sender, a noise alarm signal receiver and a microcomputer. (1) The noise detector consisting of a noise detection circuit and an acoustic-electric conversion circuit is connected with the input end of the noise alarm signal sender; (2) the noise alarm signal sender with a telephone dialing prewired circuit and a single-chip microcomputer is connected with the input end of the noise alarm signal receiver with a telephone line control circuit via an urban telephone network; (3) the output end of the noise alarm signal receiver is connected with the microcomputer. The utility model is favorable to the monitoring on the noise condition, thus realizing the purpose of timely eliminating noise and protecting environment.

Description

The automatic alarm monitoring device of noise

The utility model relates to the automatic alarm monitoring device of a kind of noise.

Existing a kind of noise alarm device outwards transmits alarm signal with noise switching signal, alarm signal via public telephone line and telephone call office by noise detector, acoustical-electrical transducer, and the shortcoming one of existence is to be unfavorable for that user monitoring uses; The 2nd, recipient's signal that whether received the report for police service really, transmit leg can not be discerned, thus the time regular meeting phenomenon failed to report.

The purpose of this utility model is to provide a kind of noise automatic alarm monitoring device, and this installs not only reliable operation, and monitoring effect is good.

The utility model is to constitute like this, and it comprises noise detector, noise alarm sender unit, noise alarm signal receiver and microcomputer.It is characterized in that: (1) is connected with the input of noise alarm sender unit by the noise detector that noise sound detects and the acoustic-electric change-over circuit constitutes, (2) have the noise alarm sender unit that dialing prewired circuit and single-chip microcomputer constitute and be connected through local network with the input of the noise alarm signal receiver with telephone wire control circuit, the output of (3) noise alarm signal receiver is connected with microcomputer.

The utility model is because the output of its alarm signal receiver is connected with microcomputer, thus help monitoring and the record of user to noise states, thus realize preferable monitoring effect.

Below in conjunction with drawings and Examples the utility model is specifically described.

Fig. 1 is the automatic alarm monitoring apparatus system of a noise general diagram.

Fig. 2 is the block diagram of noise detector.

Fig. 3 is the block diagram of noise alarm sender unit.

Fig. 4 is the block diagram of noise alarm signal receiver.

Fig. 5 is the circuit theory diagrams of noise detector.

Fig. 6 is the circuit theory diagrams of noise alarm sender unit

Fig. 7 is the circuit theory diagrams of noise alarm signal receiver.

With reference to accompanying drawing, the automatic alarm monitoring device of noise of the present utility model, it comprises noise detector, noise alarm sender unit, noise alarm signal receiver and microcomputer.It is characterized in that: (1) is connected with the input of noise alarm sender unit by the noise detector that noise sound detects and the acoustic-electric change-over circuit constitutes, (2) have the noise alarm sender unit that dialing prewired circuit and single-chip microcomputer constitute and be connected through local network with the input of the noise alarm signal receiver with telephone wire control circuit, the output of (3) noise alarm signal receiver is connected with microcomputer.Noise signal is connected with the input of noise alarm sender unit behind sound detection, acoustic-electric conversion, rectifying and wave-filtering and the comparison amplifying circuit of above-mentioned noise detector; Pass to the input of noise alarm signal receiver again through local network by audio amplifier circuit, dial-up circuit, dual-tone multifrequency reception and testing circuit, telephone number memory circuit, telephone line control circuit, single-chip microcomputer and the peripheral cell thereof of noise alarm sender unit; The noise alarm signal is handled through dual-tone multifrequency reception and testing circuit, single-chip microcomputer and the peripheral cell thereof of noise alarm signal receiver again, and is connected with microcomputer by interface circuit.

Above-mentioned noise alarm sender unit, after by the phone transmission circuit alarm signal being discerned reception, handled, dial-up circuit by the noise signal transmitter sends dialing, after the identification signal of shaking hands that the single-chip microcomputer of receiving the noise alarm signal receiver and dial-up circuit send, its alarm signal is carried out being sent to the noise alarm signal receiver through local network again behind the delay adjustments in advance, send on-the-spot alarm signal through acousto-optic circuit simultaneously.

The concrete course of work of present embodiment is as follows:

After the microphone in the noise detector detects noise signal and the conversion of process acoustic-electric, amplify and one-level LM393 sends switching signal of noise alarm sender unit to after relatively through the LM358 two-stage, the front end of finishing alarm signal picks up, the purpose of conversion of signals amplification, switching value conversion.Whether working properly in order to discern noise detector, circuit constitutes the warning indicating circuit by one-level LM393 and light-emitting diode and has also designed the another diode simultaneously and constitute the power work indicating circuit.Noise detector is supplied with after by the voltage stabilizing of V1 (78L05) power supply regulator block.

By IC2 (EM78P447A) single-chip microcomputer is core and IC1, IC6 (LM386) audio amplifier circuit, IC3 (TP5088) dial-up circuit, IC4 (MT8870) dual-tone multifrequency receives, testing circuit, the serial EEPROM of IC5 (93C46), IC7 (CD4066), IC8 (VD5027), IC9 (LM358 or MC4588) IC10 (LM393) and peripheral circuit and form the wired of a complete phone transmission, the alarm system of wireless receiving, the telephone wire inlet wire passes through polarity identification, protective circuit provides the DC level of telephone line, simultaneously constituting voltage comparator by LM393 opens circuit to the telephone wire that sends extension set to, short circuit identification detects, outside line just often flattens for low, outside line short circuit occurs and is high level when opening circuit, and the 11st pin of single-chip microcomputer EM78P447A can be according to whether short circuit of the electrical level judging that is provided, breaking alarming; This alarm has preferential warning function, this machine is to be connected by the relay in the transmitter with external telephone set, the break-make of relay is by the 16 foot control systems of single-chip microcomputer EM78P447A, when receiving alarm signal, 16 pin are high level, the circuit of control relay gets electric and makes the relay adhesive at this moment, thereby the telephone set that cuts off and connect reaches the purpose of trying to be the first and reporting to the police; The height of 17 pin output, low level is as carrying machine, the on-hook identification signal, IC3 (TP5088) is the warning dial-up circuit of numeral input, IC2 when transmitter outwards dials phone number or transmits touch-tone signal (EP78P447A) provides 4 bit binary data sign indicating numbers to the data terminal of IC3 (TP5088), and IC3 (TP5088) enabled the termination high level, letter can be held 20 foot control systems by IC2, data terminal is provided by the 22-25 pin of IC2 (EP78P447A), when the Enable Pin (2 pin) of IC3 when being high level, 16 pin of IC3 (TP5088) will be exported a touch-tone signal that meets its data input, this signal is delivered to telephone network after Q1 amplifies, the testing circuit of dual-tone multifrequency is made up of IC4 (MT8870 or CM8870).Transmitter is in when carrying the machine state, the signal of the dual-tone multifrequency on the telephone wire is through C12, R14 sends into 2 pin of IC4 (MT8870), amplification through the IC4 internal circuit, filtering, link such as phase-locked, form effective 4 binary codes, to high level appear simultaneously at 15 pin of IC4, when 21 pin of IC2 (EP78P447A) record high level, then regarded as the dual-tone multifrequency input, to provide 10th pin of a high level signal from 19 pin to IC4, open the buffer of IC4, make its 4 valid data enter the data terminal of IC2, the IC2 built-in command can be differentiated external command according to the binary code of input.Thereby carry out realization to relevant predetermined function, the telephone number that system outwards dials is stored in the IC5 (93C46), IC5 is the EEPROM of serial, the user can revise or be provided with the content of EEPROM at any time, number and the information dialed with change, electric routing switch K1 is set, compositions such as Q2, K1 is a double-point double-throw switch, its centre-point earth, and other 2 connect the base stage of Q2 and 10 pin of IC2 respectively, the end of incoming cables of the central point extension telephone machine of the other end, the outside line of other 2 machines of answering the call respectively and the end of L1 when K1 is in when state is set, at first disconnect the base stage of Q2, make the Q2 conducting, with a grounding of telephone wire, and with the direct ground connection of 10 pin of IC2, IC2 is in the state of setting, another cutter of switch disconnects extension telephone machine and outside line, and is connected to the 15V power supply by L1.And make Q2 outside line be provided the voltage of a 15V to IC5, and K1 also is prefabricated into low level with 14 pin of IC2, thereby make IC2 enter the state of setting, also be provided with the prompt tone appearance this moment, the user can mention the telephone set that is attempted by alarm signal at this moment and input is set dials required number, can finish the work of setting, be provided with when finishing and K1 should be placed the normal position.When the noise alarm signal occurring and be continuous 60 seconds, IC2 (EP78P447A) and Q8, J2 (relay) form the automatic controlled function of controlled plant power supply, and control procedure is by IC2 7 pin, exports a high level to Q8, make the J2 relay get electric work, thereby cut off 10 seconds of controlled source.And noise alarm prompt tone continuous alarm arranged, when the noise alarm signal when intermittently being no more than 60 seconds, the automatic control circuit of the controlled source that IC2, Q8, J2 form is not worked, and has only the noise alarm prompt tone to occur.The noise alarm transmitter does not send dialing signal, and the noise alarm signal receiver can not received alarm signal.Recording, monitoring circuit by: M1 recording, monitor module, IC2 (EP78P447A), Q7, Q6 form.

By IC1 single-chip microcomputer integrated circuit PIC16CXX (adopting PIC16C74 in the receiver), IC2 (MT8870), IC3 (TP5088) and IC4 (RS232) constitute circuitry, when the caller bell signal arrives, the photoelectric coupled circuit of receiver time end send high level signal just for the RC6 port of PIC16C74, this moment, single-chip microcomputer just provided instruction also to receive the voice modulation code signal of being sent by transmitter when transmitter sends handshake to dial-up circuit MT8870 and TP5088, the signal that receives is automatically converted to the discernible data-signal of computer after being handled by single-chip microcomputer, by IC4 (RS232) decoding backcasting machine data signal, the signal of being sent here is handled the purpose that reaches warning by the self-compiling program that calculates.The power supply of receiver provides after by 220 volts of alternating current step-down rectifiers+and the 5V direct voltage supplies with.The wireless receiving part is by Q10 (1906) L peripheral with it, C, the R element is formed Armstrong circuit, the signal that acceptance is sent from remote controller and wireless probe etc., receiving the signal that comes amplifies through the first order of IC9 (LM358 or MC4558), the second level is shaped as square-wave signal and delivers to IC8 (VD5027) and decode, solve 4 binary codes, export by the 10-13 pin, as IC8 (VD5027) when integrated package receives useful signal, high level will appear in 17 pin, and give IC2 (EM78P447A) and judged whether wireless signal input, this moment, IC2 then sent the control end that high level is given IC7 (CD4066) integrated package, analog switch is opened, the binary system of the 10-13 pin of IC8 (VD5027) is sent into IC2,, should will send low level for 4503 control ends if change CD4066 at into 4503 o'clock.

The utility model is not only novel, rational in infrastructure, stable performance, practical, and can also can monitor, monitor, record, report to the police sewage, waste gas etc. man-made noise, domestic noise.Need not the other construction of line during native system construction and installation, utilize local network; Report to the police when alarm signal and user occurring simultaneously and using phone and have precedence over user's communication, system can cut off the user's communication phone that is using automatically, thereby carries out noise alarm.Between noise alarm sender unit and the noise alarm signal receiver alarm signal recognition function is arranged, thereby avoid reporting by mistake and failing to report.Also has the alarm signal simultaneously so that the user in time eliminates noise problem.The noise alarm sender unit has the delayed alarm function, can prevent false alarm.Also have probe transmission, the short circuit of supply line, breakage detection function, can prevent artificial destruction.Can be widely used in industrial site and the life area that to monitor noise intensity.

Claims

1, the automatic alarm monitoring device of a kind of noise, comprise noise detector, noise alarm sender unit and noise alarm signal receiver, it is characterized in that: (1) is connected with the input of noise alarm sender unit by the noise detector that noise sound detects and the acoustic-electric change-over circuit constitutes, (2) have the noise alarm sender unit that dialing prewired circuit and single-chip microcomputer constitute and be connected through local network with the input of the noise alarm signal receiver with telephone wire control circuit, the output of (3) noise alarm signal receiver is connected with microcomputer.

2, the automatic alarm monitoring device of noise according to claim 1 is characterized in that: noise signal is connected with the input of noise alarm sender unit behind sound detection, acoustic-electric conversion, rectifying and wave-filtering and the comparison amplifying circuit of noise detector; Pass to the input of noise alarm signal receiver again through local network by audio amplifier circuit, dial-up circuit, dual-tone multifrequency reception and testing circuit, telephone number memory circuit, telephone line control circuit, single-chip microcomputer and the peripheral cell thereof of noise alarm sender unit; The noise alarm signal is handled through dual-tone multifrequency reception and testing circuit, single-chip microcomputer and the peripheral cell thereof of noise alarm signal receiver again, and is connected with microcomputer by interface circuit.

3, the automatic alarm monitoring device of noise according to claim 2, it is characterized in that: the noise alarm sender unit, after by the phone transmission circuit alarm signal being discerned reception, handled, dial-up circuit by the noise signal transmitter sends dialing, after the identification signal of shaking hands that the single-chip microcomputer of receiving the noise alarm signal receiver and dial-up circuit send, its alarm signal is carried out being sent to the noise alarm signal receiver through local network again behind the delay adjustments in advance, send on-the-spot alarm signal through acousto-optic circuit simultaneously.