CN202720740U - Voice antitheft alarm system based on low-voltage general integrated power amplifier - Google Patents

Voice antitheft alarm system based on low-voltage general integrated power amplifier Download PDF

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CN202720740U
CN202720740U CN 201220406989 CN201220406989U CN202720740U CN 202720740 U CN202720740 U CN 202720740U CN 201220406989 CN201220406989 CN 201220406989 CN 201220406989 U CN201220406989 U CN 201220406989U CN 202720740 U CN202720740 U CN 202720740U
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signal
low
power amplifier
chip
integrated power
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CN 201220406989
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李强
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Chengdu Zhongshan Technology Co Ltd
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Chengdu Zhongshan Technology Co Ltd
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Abstract

The utility model discloses a voice antitheft alarm system based on a low-voltage general integrated power amplifier. The system comprises a pyroelectric infrared sensor, a signal processing circuit, a micro control unit MCU, a voice record-replay circuit and a short message signal sending terminal, wherein the pyroelectric infrared sensor is used to continuously collect infrared signals in a precautionary area; the signal processing circuit is used to receive the infrared signals; the signal processing circuit makes a determination according to the infrared signals and then emits a digital-signal high level; the micro control unit MCU is used to receive the digital-signal high level; the micro control unit MCU makes the determination according to the digital-signal high level and starts an alarm program, and then emits an alarm signaling signal; the voice record-replay circuit and the short message signal sending terminal are used to receive the alarm signaling signal; after receiving the alarm signaling signal, the short message signal sending terminal is activated and sends a preset short message to a mobile phone of a user. The system of the utility model has the following advantages that the structure of the system is simple; cost is low; through emitting a voice warning, a mental stress is increased so that a thief takes an initiative to leave.

Description

Voice antitheft warning system based on the general integrated power amplifier of low-voltage
Technical field
The utility model relates to anti-theft technique, and namely concrete is to utilize short message communication and audio alert and the warning device established, namely based on the voice antitheft warning system of the general integrated power amplifier of low-voltage.
Background technology
The antitheft mode of Modern Family is mainly installing antitheft door, theftproof lock as main, but this kind equipment mainly is to increase the difficulty that the robber enters the room to reach antitheft purpose.
This simple mechanical hook-up, in nobody situation on the scene of long period, anti-theft effect is often not fully up to expectations, so people need to have new burglary-resisting system as a supplement.Though the many gate control system function admirables on the market, factor of assurance is higher, but because its fancy price allows general family feel to be difficult to accept, many systems are destroyed at door and window, just report to the police after the unauthorized person invasion, and these burglary-resisting installations are installed are had than havoc original door and window.These warning systems can be notified owner or alarm center when having alert to occur, but their response all needs the regular hour, and probably the lawless person has finished the pilferage behavior within their response time.
The utility model content
The purpose of this utility model is to provide the voice antitheft warning system based on the general integrated power amplifier of low-voltage, and this apparatus structure is simple, and cost is low, by providing voice warning, increases its psychological pressure, and its robber is initiatively left.
Implementation of the present utility model is as follows: the voice antitheft warning system based on the general integrated power amplifier of low-voltage comprises the pyroelectric infrared sensor that constantly gathers for the infrared signal to the security area; Comprise that also described signal processing circuit is sent the digital signal high level after making a determination according to infrared signal for the signal processing circuit that receives infrared signal; Also comprise the single-chip microprocessor MCU for the receiving digital signals high level, described single-chip microprocessor MCU make a determination according to the digital signal high level and start alert program after send the warning signaling-information; Also comprise for the audio record circuit and the note signalling terminals that receive the warning signaling-information, be activated after note signal generation terminal receives the warning signaling-information, send default note to user mobile phone;
Pyroelectric infrared sensor comprise power end D, hold G, target output voltage end S,
Signal processing circuit comprises infrared sensing signal dedicated processes chip BISS0001, and the VO end of described infrared sensing signal dedicated processes chip BISS0001 is connected with single-chip microprocessor MCU as output signal end and reads for single-chip microprocessor MCU,
Power end D is connected with power supply VCC, ground end G be connected in ground wire, the 1IN+ end of target output voltage end S and infrared sensing signal dedicated processes chip BISS0001 is connected;
The general integrated power amplifier LM386M-1 of low-voltage that audio record circuit comprises the speech chip ISD4004 that is connected with single-chip microprocessor MCU and is connected with speech chip ISD4004, IN+ end and the IN-end of speech chip ISD4004 are connected with microphone MK1 simultaneously, the OUT end of speech chip ISD4004 is connected with the GND end of the general integrated power amplifier LM386M-1 of low-voltage and accesses ground wire, and the VS end of the general integrated power amplifier LM386M-1 of low-voltage is connected with loudspeaker LS1.
MK1 is microphone, is used for the typing voice, can finish common live recording.In playback circuit, output terminal selects the typical application circuit of the general integrated power amplifier LM386M-1 of low-voltage as the driving circuit of loudspeaker LS1.In this typical circuit, the shunt capacitance of external 10 μ F between 1 pin of LM386M-1 and 8 pin can make the enlargement factor of circuit improve 200 times.The operating voltage of ISD4004 is 3V, can be 3 V with the 5V voltage transition by transforming circuit.
Described single-chip microprocessor MCU also is connected with display device and key device.
Described display device is the charactron display.
Single-chip microprocessor MCU is that model is the single-chip microcomputer of AT89S51.
The model of pyroelectric infrared sensor is RE200B.
The best method of security protection be when the lawless person has intrusion attempt just by providing voice warning, increase its psychological pressure, it is initiatively left.In the situation that this method lost efficacy, can record the invasion time, carry out live recording, then notify owner or alarm center by short message communication or other modes.The design just is being based on a kind of like this thought, has also increased personalized, convenient and practical voice service function simultaneously on the basis of audio alert.It is low that this designs and produces cost, easy for installation, and door and window is not almost had destructiveness, antitheft good reliability, and the lamprophonia of broadcast is suitable for general family and uses.
Pyroelectric infrared sensor constantly gathers the infrared signal of security area and the infrared signal that collects is uploaded to signal processing circuit, signal processing circuit receives the infrared signal that pyroelectric infrared sensor uploads and processes, last outputting analog signal high level also is uploaded to single-chip microprocessor MCU, single-chip microprocessor MCU is after receiving the high level signal that signal processor sends, make signal to audio record circuit and note signalling terminals through judging to start alert program and send alarm signal, be activated after note signal generation terminal receives the warning signaling-information, send default note to user mobile phone.
Native system mainly is comprised of warning subsystem and voice service subsystem two large divisions, the subsystem of wherein reporting to the police adopts pyroelectric infrared sensor as the alerting signal harvester, the AT89S51 single-chip microprocessor MCU is as master controller, audio record circuit adopts chip I SD4004 as reporting to the police and the voice service actuating unit, and key device and display device are as man-machine interface.
During system works, pyroelectric infrared sensor constantly gathers the infrared signal of security area, and when human body occurring in fence coverage, signal processing circuit is exported high level to single-chip microcomputer.Because the lawless person is generally relatively long in the time for the treatment of outdoors, so the user arranges best alarm time by key device, in order to they are distinguished in conjunction with own family environment of living in and stream of people's situation.After setting completed, single-chip microprocessor MCU will be carried out acquisition process to the digital signal of processing through signal processing circuit according to alarm time, judge whether to start to report to the police.Report to the police if start, then by controlling the speech chip that has had alarm content the lawless person is carried out voice warning, then repeat playing several times audio alert content is then recorded to the scene with watchful owner or people on every side, the record time of fire alarming; While display alarm number of times on the charactron display, and can inquire about time of fire alarming by respective keys, be convenient to solve a case.
Aspect voice service, can set in advance different patterns by keyboard in personalized ground, as the pattern of going out, pattern away from keyboard, home mode, interruption-free pattern etc.When I have a visit from a guest when pressing doorbell, automatically play different voice contents under the different patterns, carry out exchanging of close friend by voice messaging with the guest, not only made things convenient for owner but also made things convenient for the guest.
Pyroelectric infrared sensor RE200B detects human body signal, and infrared sensing signal dedicated processes chip BISS0001 carries out rough handling to signal collected.The D of pyroelectric infrared sensor RE200B, G, S end be respectively power end, hold and the target output voltage end.Output signal VO connects single-chip microprocessor MCU, reads for it.
Adopt the advantage of pyroelectric infrared sensor to be: cost is low, do not need with emissive sources such as infrared ray or electromagnetic waves, and good concealment, the installation of can flowing, highly sensitive, range of control is large.Pyroelectric infrared sensor utilizes pyroelectric effect, can detect with the noncontact form infrared ray of human body radiation, and changes it into voltage signal; Simultaneously, it can also identify the biology of motion and other are abiotic.In actual the use, Fresnel Lenses must be installed in the pyroelectric infrared sensor front.The effect of Fresnel Lenses is that the infrared ray with human body radiation focuses on rpyroelectric infrared and surveys in the unit, also produce simultaneously the highly sensitive district of infrared radiation and the blind area that alternately changes, survey the characteristic that unit requires signal constantly to change to adapt to rpyroelectric infrared, can greatly improve receiving sensitivity like this, increase distance and the scope of detecting.Do not add Fresnel Lenses if experiment showed, pyroelectric infrared sensor, then its detection distance is (human body is passed by) about 2 m only; And after mixing Fresnel Lenses, it detects distance and rises to more than 10 m, even can reach more than 20 m.
Because the pyroelectric infrared sensor signal intensity is slow, amplitude is little, for these characteristics, dedicated signal processors generally is divided into the processing of 3 steps: filter and amplification, window comparison, squelch and digital signal processing.BISS0001 mixes special IC by the digital-to-analogue that operational amplifier, voltage comparator, state controller, time delay, timer and blocking time timer etc. consisted of.It adopts CMOS technique, digital-to-analogue to mix, and has independently high input impedance operational amplifier, but inner two-way amplitude discriminator establishment disturbs.It has two kinds of working methods selective, but can be set to repeated trigger mode and not reproducible triggering mode by pin A being put 1 or 0.But native system is selected the repeated trigger mode.After infrared signal is carried out pre-service, can detect effective trigger pip Vs by two-way amplitude discriminator.Because but what select is the repeated trigger mode, but Vs repeated trigger VO is effective status, and can impel the VO state of always remaining valid in delay cycle Tx.The large I of delay cycle is regulated by R1 and C1.In time, as long as saltus step in the Vs generation, VO will continue to prolong a Tx cycle from the upper jumping moment of Vs at Tx; If Vs remains one state, the VO state of always remaining valid then; If Vs remains " O " state, then VO reverts to disarmed state behind the Tx end cycle, and within the blocking time Ti time, it is effective status that the variation of any Vs all can not trigger VO.
Speech chip ISD4004 adopts the CMOS technology, include crystal oscillator, antialiasing filter, smoothing filter, automatic silencing, audio-frequency power amplifier and many electrical level flash of high density storage array etc., therefore only need peripheral components seldom just can consist of a complete Sound Record ﹠ Playback System.Speech chip ISD4004 band SPI interface, record playback time is long, and tonequality is good, does not need A/D to change, and repeatable recording 100,000 times still can save data after the outage 100 years.Voice content fragmented storage, program can be selected arbitrary section as the start address of recording, playback.
The main pin of ISD4004 is described as follows: 1. sheet selects CS, chooses chip when this end is low level.2. VCCA, VCCD, power supply 3 V.3. OUT, audio output can drive 5 Ω loads.4. IN+, IN-, recorded audio signals homophase, inverting input.5. MOSI, serial input terminal.The master control device should half period be put into this end with data before the serial clock rising edge, input for ISD4004.6. SCLK, input end of clock is produced by master controller, is used for the data transmission of synchronous MOSI and MISO.7. AMCAP, automatic silencing sound control end.8. VSSA, VSSD, ground wire.
The utility model has the advantage of: this apparatus structure is simple, and cost is low, by providing voice warning, increases its psychological pressure, and its robber is initiatively left.
Description of drawings
Fig. 1 is the utility model structural representation.
Fig. 2 is the circuit diagram of signal processing circuit.
Fig. 3 is the circuit diagram of audio record circuit.
Embodiment
Embodiment one
As shown in Figure 1, 2.
Voice antitheft warning system based on the general integrated power amplifier of low-voltage comprises the pyroelectric infrared sensor that constantly gathers for the infrared signal to the security area; Comprise that also described signal processing circuit is sent the digital signal high level after making a determination according to infrared signal for the signal processing circuit that receives infrared signal; Also comprise the single-chip microprocessor MCU for the receiving digital signals high level, described single-chip microprocessor MCU make a determination according to the digital signal high level and start alert program after send the warning signaling-information; Also comprise for the audio record circuit and the note signalling terminals that receive the warning signaling-information, be activated after note signal generation terminal receives the warning signaling-information, send default note to user mobile phone;
Pyroelectric infrared sensor comprise power end D, hold G, target output voltage end S,
Signal processing circuit comprises infrared sensing signal dedicated processes chip BISS0001, and the VO end of described infrared sensing signal dedicated processes chip BISS0001 is connected with single-chip microprocessor MCU as output signal end and reads for single-chip microprocessor MCU,
Power end D is connected with power supply VCC, ground end G be connected in ground wire, the 1IN+ end of target output voltage end S and infrared sensing signal dedicated processes chip BISS0001 is connected;
The general integrated power amplifier LM386M-1 of low-voltage that audio record circuit comprises the speech chip ISD4004 that is connected with single-chip microprocessor MCU and is connected with speech chip ISD4004, IN+ end and the IN-end of speech chip ISD4004 are connected with microphone MK1 simultaneously, the OUT end of speech chip ISD4004 is connected with the GND end of the general integrated power amplifier LM386M-1 of low-voltage and accesses ground wire, and the VS end of the general integrated power amplifier LM386M-1 of low-voltage is connected with loudspeaker LS1.
MK1 is microphone, is used for the typing voice, can finish common live recording.In playback circuit, output terminal selects the typical application circuit of the general integrated power amplifier LM386M-1 of low-voltage as the driving circuit of loudspeaker LS1.In this typical circuit, the shunt capacitance of external 10 μ F between 1 pin of LM386M-1 and 8 pin can make the enlargement factor of circuit improve 200 times.The operating voltage of ISD4004 is 3V, can be 3 V with the 5V voltage transition by transforming circuit.
Described single-chip microprocessor MCU also is connected with display device and key device.
Described display device is the charactron display.
Single-chip microprocessor MCU is that model is the single-chip microcomputer of AT89S51.
The model of pyroelectric infrared sensor is RE200B.
The best method of security protection be when the lawless person has intrusion attempt just by providing voice warning, increase its psychological pressure, it is initiatively left.In the situation that this method lost efficacy, can record the invasion time, carry out live recording, then notify owner or alarm center by short message communication or other modes.The design just is being based on a kind of like this thought, has also increased personalized, convenient and practical voice service function simultaneously on the basis of audio alert.It is low that this designs and produces cost, easy for installation, and door and window is not almost had destructiveness, antitheft good reliability, and the lamprophonia of broadcast is suitable for general family and uses.
Pyroelectric infrared sensor constantly gathers the infrared signal of security area and the infrared signal that collects is uploaded to signal processing circuit, signal processing circuit receives the infrared signal that pyroelectric infrared sensor uploads and processes, last outputting analog signal high level also is uploaded to single-chip microprocessor MCU, single-chip microprocessor MCU is after receiving the high level signal that signal processor sends, make signal to audio record circuit and note signalling terminals through judging to start alert program and send alarm signal, be activated after note signal generation terminal receives the warning signaling-information, send default note to user mobile phone.
Native system mainly is comprised of warning subsystem and voice service subsystem two large divisions, the subsystem of wherein reporting to the police adopts pyroelectric infrared sensor as the alerting signal harvester, the AT89S51 single-chip microprocessor MCU is as master controller, audio record circuit adopts chip I SD4004 as reporting to the police and the voice service actuating unit, and key device and display device are as man-machine interface.
During system works, pyroelectric infrared sensor constantly gathers the infrared signal of security area, and when human body occurring in fence coverage, signal processing circuit is exported high level to single-chip microcomputer.Because the lawless person is generally relatively long in the time for the treatment of outdoors, so the user arranges best alarm time by key device, in order to they are distinguished in conjunction with own family environment of living in and stream of people's situation.After setting completed, single-chip microprocessor MCU will be carried out acquisition process to the digital signal of processing through signal processing circuit according to alarm time, judge whether to start to report to the police.Report to the police if start, then by controlling the speech chip that has had alarm content the lawless person is carried out voice warning, then repeat playing several times audio alert content is then recorded to the scene with watchful owner or people on every side, the record time of fire alarming; While display alarm number of times on the charactron display, and can inquire about time of fire alarming by respective keys, be convenient to solve a case.
Aspect voice service, can set in advance different patterns by keyboard in personalized ground, as the pattern of going out, pattern away from keyboard, home mode, interruption-free pattern etc.When I have a visit from a guest when pressing doorbell, automatically play different voice contents under the different patterns, carry out exchanging of close friend by voice messaging with the guest, not only made things convenient for owner but also made things convenient for the guest.
Pyroelectric infrared sensor RE200B detects human body signal, and infrared sensing signal dedicated processes chip BISS0001 carries out rough handling to signal collected.The D of pyroelectric infrared sensor RE200B, G, S end be respectively power end, hold and the target output voltage end.Output signal VO connects single-chip microprocessor MCU, reads for it.
Adopt the advantage of pyroelectric infrared sensor to be: cost is low, do not need with emissive sources such as infrared ray or electromagnetic waves, and good concealment, the installation of can flowing, highly sensitive, range of control is large.Pyroelectric infrared sensor utilizes pyroelectric effect, can detect with the noncontact form infrared ray of human body radiation, and changes it into voltage signal; Simultaneously, it can also identify the biology of motion and other are abiotic.In actual the use, Fresnel Lenses must be installed in the pyroelectric infrared sensor front.The effect of Fresnel Lenses is that the infrared ray with human body radiation focuses on rpyroelectric infrared and surveys in the unit, also produce simultaneously the highly sensitive district of infrared radiation and the blind area that alternately changes, survey the characteristic that unit requires signal constantly to change to adapt to rpyroelectric infrared, can greatly improve receiving sensitivity like this, increase distance and the scope of detecting.Do not add Fresnel Lenses if experiment showed, pyroelectric infrared sensor, then its detection distance is (human body is passed by) about 2 m only; And after mixing Fresnel Lenses, it detects distance and rises to more than 10 m, even can reach more than 20 m.
Because the pyroelectric infrared sensor signal intensity is slow, amplitude is little, for these characteristics, dedicated signal processors generally is divided into the processing of 3 steps: filter and amplification, window comparison, squelch and digital signal processing.BISS0001 mixes special IC by the digital-to-analogue that operational amplifier, voltage comparator, state controller, time delay, timer and blocking time timer etc. consisted of.It adopts CMOS technique, digital-to-analogue to mix, and has independently high input impedance operational amplifier, but inner two-way amplitude discriminator establishment disturbs.It has two kinds of working methods selective, but can be set to repeated trigger mode and not reproducible triggering mode by pin A being put 1 or 0.But native system is selected the repeated trigger mode.After infrared signal is carried out pre-service, can detect effective trigger pip Vs by two-way amplitude discriminator.Because but what select is the repeated trigger mode, but Vs repeated trigger VO is effective status, and can impel the VO state of always remaining valid in delay cycle Tx.The large I of delay cycle is regulated by R1 and C1.In time, as long as saltus step in the Vs generation, VO will continue to prolong a Tx cycle from the upper jumping moment of Vs at Tx; If Vs remains one state, the VO state of always remaining valid then; If Vs remains " O " state, then VO reverts to disarmed state behind the Tx end cycle, and within the blocking time Ti time, it is effective status that the variation of any Vs all can not trigger VO.
Speech chip ISD4004 adopts the CMOS technology, include crystal oscillator, antialiasing filter, smoothing filter, automatic silencing, audio-frequency power amplifier and many electrical level flash of high density storage array etc., therefore only need peripheral components seldom just can consist of a complete Sound Record ﹠ Playback System.Speech chip ISD4004 band SPI interface, record playback time is long, and tonequality is good, does not need A/D to change, and repeatable recording 100,000 times still can save data after the outage 100 years.Voice content fragmented storage, program can be selected arbitrary section as the start address of recording, playback.
The main pin of ISD4004 is described as follows: 1. sheet selects CS, chooses chip when this end is low level.2. VCCA, VCCD, power supply 3 V.3. OUT, audio output can drive 5 Ω loads.4. IN+, IN-, recorded audio signals homophase, inverting input.5. MOSI, serial input terminal.The master control device should half period be put into this end with data before the serial clock rising edge, input for ISD4004.6. SCLK, input end of clock is produced by master controller, is used for the data transmission of synchronous MOSI and MISO.7. AMCAP, automatic silencing sound control end.8. VSSA, VSSD, ground wire.
As mentioned above, then can well realize the utility model.

Claims (5)

1. based on the voice antitheft warning system of the general integrated power amplifier of low-voltage, it is characterized in that: comprise the pyroelectric infrared sensor that constantly gathers for the infrared signal to the security area; Comprise that also described signal processing circuit is sent the digital signal high level after making a determination according to infrared signal for the signal processing circuit that receives infrared signal; Also comprise the single-chip microprocessor MCU for the receiving digital signals high level, described single-chip microprocessor MCU make a determination according to the digital signal high level and start alert program after send the warning signaling-information; Also comprise for the audio record circuit and the note signalling terminals that receive the warning signaling-information, be activated after note signal generation terminal receives the warning signaling-information, send default note to user mobile phone;
Pyroelectric infrared sensor comprise power end D, hold G, target output voltage end S,
Signal processing circuit comprises infrared sensing signal dedicated processes chip BISS0001, and the VO end of described infrared sensing signal dedicated processes chip BISS0001 is connected with single-chip microprocessor MCU as output signal end and reads for single-chip microprocessor MCU,
Power end D is connected with power supply VCC, ground end G be connected in ground wire, the 1IN+ end of target output voltage end S and infrared sensing signal dedicated processes chip BISS0001 is connected;
The general integrated power amplifier LM386M-1 of low-voltage that audio record circuit comprises the speech chip ISD4004 that is connected with single-chip microprocessor MCU and is connected with speech chip ISD4004, IN+ end and the IN-end of speech chip ISD4004 are connected with microphone MK1 simultaneously, the OUT end of speech chip ISD4004 is connected with the GND end of the general integrated power amplifier LM386M-1 of low-voltage and accesses ground wire, and the VS end of the general integrated power amplifier LM386M-1 of low-voltage is connected with loudspeaker LS1.
2. the voice antitheft warning system based on the general integrated power amplifier of low-voltage according to claim 1, it is characterized in that: described single-chip microprocessor MCU also is connected with display device and key device.
3. the voice antitheft warning system based on the general integrated power amplifier of low-voltage according to claim 2, it is characterized in that: described display device is the charactron display.
4. the voice antitheft warning system based on the general integrated power amplifier of low-voltage according to claim 1, it is characterized in that: single-chip microprocessor MCU is that model is the single-chip microcomputer of AT89S51.
5. the voice antitheft warning system based on the general integrated power amplifier of low-voltage according to claim 1, it is characterized in that: the model of pyroelectric infrared sensor is RE200B.
CN 201220406989 2012-08-17 2012-08-17 Voice antitheft alarm system based on low-voltage general integrated power amplifier Expired - Fee Related CN202720740U (en)

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Application Number Priority Date Filing Date Title
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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103593930A (en) * 2012-08-17 2014-02-19 成都众山科技有限公司 Voice antitheft alarm system based on low-voltage general integration power amplifier
CN105096500A (en) * 2014-05-24 2015-11-25 王军强 Infrared alarm based on single chip microcomputer

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103593930A (en) * 2012-08-17 2014-02-19 成都众山科技有限公司 Voice antitheft alarm system based on low-voltage general integration power amplifier
CN105096500A (en) * 2014-05-24 2015-11-25 王军强 Infrared alarm based on single chip microcomputer

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